[Java] Update auto-generated Java bindings
[ldk-java] / src / main / jni / bindings.c.body
index 313335011129ce1f2f5d6b2927fd8cdf477653ae..fee78ed589f2e6627caa32d6b1017dc09589286a 100644 (file)
@@ -153,6 +153,62 @@ JNIEXPORT void Java_org_ldk_impl_bindings_init_1class_1cache(JNIEnv * env, jclas
        arr_of_J_clz = (*env)->NewGlobalRef(env, arr_of_J_clz);
 }
 static inline struct LDKThirtyTwoBytes ThirtyTwoBytes_clone(const struct LDKThirtyTwoBytes *orig) { struct LDKThirtyTwoBytes ret; memcpy(ret.data, orig->data, 32); return ret; }
+
+static inline void* untag_ptr(uint64_t ptr) {
+       if (ptr < 4096) return (void*)ptr;
+       if (sizeof(void*) == 4) {
+               // For 32-bit systems, store pointers as 64-bit ints and use the 31st bit
+               return (void*)(uintptr_t)ptr;
+       } else {
+               // For 64-bit systems, assume the top byte is used for tagging, then
+               // use bit 9 ^ bit 10.
+               uint64_t tenth_bit = (((uintptr_t)ptr) & (1ULL << 54)) >> 54;
+               uintptr_t p = (ptr & ~(1ULL << 55)) | (tenth_bit << 55);
+#ifdef LDK_DEBUG_BUILD
+               // On debug builds we also use the 11th bit as a debug flag
+               uintptr_t eleventh_bit = (((uintptr_t)ptr) & (1ULL << 53)) >> 53;
+               CHECK(tenth_bit != eleventh_bit);
+               p ^= 1ULL << 53;
+#endif
+               return (void*)p;
+       }
+}
+static inline bool ptr_is_owned(uint64_t ptr) {
+       if(ptr < 4096) return true;
+       if (sizeof(void*) == 4) {
+               return ptr & (1ULL << 32);
+       } else {
+               uintptr_t ninth_bit = (((uintptr_t)ptr) & (1ULL << 55)) >> 55;
+               uintptr_t tenth_bit = (((uintptr_t)ptr) & (1ULL << 54)) >> 54;
+#ifdef LDK_DEBUG_BUILD
+               // On debug builds we also use the 11th bit as a debug flag
+               uintptr_t eleventh_bit = (((uintptr_t)ptr) & (1ULL << 53)) >> 53;
+               CHECK(tenth_bit != eleventh_bit);
+#endif
+               return (ninth_bit ^ tenth_bit) ? true : false;
+       }
+}
+static inline uint64_t tag_ptr(const void* ptr, bool is_owned) {
+       if ((uintptr_t)ptr < 4096) return (uint64_t)ptr;
+       if (sizeof(void*) == 4) {
+               return (((uint64_t)ptr) | ((is_owned ? 1ULL : 0) << 32));
+       } else {
+               CHECK(sizeof(uintptr_t) == 8);
+               uintptr_t tenth_bit = (((uintptr_t)ptr) & (1ULL << 54)) >> 54;
+               uintptr_t t = (((uintptr_t)ptr) | (((is_owned ? 1ULL : 0ULL) ^ tenth_bit) << 55));
+#ifdef LDK_DEBUG_BUILD
+               uintptr_t ninth_bit = (((uintptr_t)ptr) & (1ULL << 55)) >> 55;
+               uintptr_t eleventh_bit = (((uintptr_t)ptr) & (1ULL << 53)) >> 53;
+               CHECK(ninth_bit == tenth_bit);
+               CHECK(ninth_bit == eleventh_bit);
+               t ^= 1ULL << 53;
+#endif
+               CHECK(ptr_is_owned(t) == is_owned);
+               CHECK(untag_ptr(t) == ptr);
+               return t;
+       }
+}
+
 static inline LDKAccessError LDKAccessError_from_java(JNIEnv *env, jclass clz) {
        jint ord = (*env)->CallIntMethod(env, clz, ordinal_meth);
        if (UNLIKELY((*env)->ExceptionCheck(env))) {
@@ -935,7 +991,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKBech32Error_init (JNIE
        CHECK(LDKBech32Error_MixedCase_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKBech32Error_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKBech32Error *obj = (LDKBech32Error*)(ptr & ~1);
+       LDKBech32Error *obj = (LDKBech32Error*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKBech32Error_MissingSeparator: {
                        return (*env)->NewObject(env, LDKBech32Error_MissingSeparator_class, LDKBech32Error_MissingSeparator_meth);
@@ -969,7 +1025,7 @@ static inline LDKCVec_u8Z CVec_u8Z_clone(const LDKCVec_u8Z *orig) {
        return ret;
 }
 struct LDKCVec_u8Z TxOut_get_script_pubkey (struct LDKTxOut* thing) {  return CVec_u8Z_clone(&thing->script_pubkey);}JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_TxOut_1get_1script_1pubkey(JNIEnv *env, jclass clz, int64_t thing) {
-       LDKTxOut* thing_conv = (LDKTxOut*)(thing & ~1);
+       LDKTxOut* thing_conv = (LDKTxOut*)untag_ptr(thing);
        LDKCVec_u8Z ret_var = TxOut_get_script_pubkey(thing_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -978,7 +1034,7 @@ struct LDKCVec_u8Z TxOut_get_script_pubkey (struct LDKTxOut* thing) {      return CVe
 }
 
 uint64_t TxOut_get_value (struct LDKTxOut* thing) {    return thing->value;}JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_TxOut_1get_1value(JNIEnv *env, jclass clz, int64_t thing) {
-       LDKTxOut* thing_conv = (LDKTxOut*)(thing & ~1);
+       LDKTxOut* thing_conv = (LDKTxOut*)untag_ptr(thing);
        int64_t ret_conv = TxOut_get_value(thing_conv);
        return ret_conv;
 }
@@ -988,7 +1044,7 @@ CHECK(owner->result_ok);
        return *owner->contents.result;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NoneNoneZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NoneNoneZ* owner_conv = (LDKCResult_NoneNoneZ*)(owner & ~1);
+       LDKCResult_NoneNoneZ* owner_conv = (LDKCResult_NoneNoneZ*)untag_ptr(owner);
        CResult_NoneNoneZ_get_ok(owner_conv);
 }
 
@@ -997,7 +1053,7 @@ CHECK(!owner->result_ok);
        return *owner->contents.err;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NoneNoneZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NoneNoneZ* owner_conv = (LDKCResult_NoneNoneZ*)(owner & ~1);
+       LDKCResult_NoneNoneZ* owner_conv = (LDKCResult_NoneNoneZ*)untag_ptr(owner);
        CResult_NoneNoneZ_get_err(owner_conv);
 }
 
@@ -1006,16 +1062,11 @@ CHECK(owner->result_ok);
        return CounterpartyCommitmentSecrets_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyCommitmentSecretsDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ* owner_conv = (LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ*)(owner & ~1);
+       LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ* owner_conv = (LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ*)untag_ptr(owner);
        LDKCounterpartyCommitmentSecrets ret_var = CResult_CounterpartyCommitmentSecretsDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1024,16 +1075,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyCommitmentSecretsDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ* owner_conv = (LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ*)(owner & ~1);
+       LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ* owner_conv = (LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_CounterpartyCommitmentSecretsDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1042,7 +1088,7 @@ CHECK(owner->result_ok);
        return *owner->contents.result;
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_CResult_1SecretKeyErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_SecretKeyErrorZ* owner_conv = (LDKCResult_SecretKeyErrorZ*)(owner & ~1);
+       LDKCResult_SecretKeyErrorZ* owner_conv = (LDKCResult_SecretKeyErrorZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, CResult_SecretKeyErrorZ_get_ok(owner_conv).bytes);
        return ret_arr;
@@ -1053,7 +1099,7 @@ CHECK(!owner->result_ok);
        return *owner->contents.err;
 }
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_CResult_1SecretKeyErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_SecretKeyErrorZ* owner_conv = (LDKCResult_SecretKeyErrorZ*)(owner & ~1);
+       LDKCResult_SecretKeyErrorZ* owner_conv = (LDKCResult_SecretKeyErrorZ*)untag_ptr(owner);
        jclass ret_conv = LDKSecp256k1Error_to_java(env, CResult_SecretKeyErrorZ_get_err(owner_conv));
        return ret_conv;
 }
@@ -1063,7 +1109,7 @@ CHECK(owner->result_ok);
        return *owner->contents.result;
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_CResult_1PublicKeyErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PublicKeyErrorZ* owner_conv = (LDKCResult_PublicKeyErrorZ*)(owner & ~1);
+       LDKCResult_PublicKeyErrorZ* owner_conv = (LDKCResult_PublicKeyErrorZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, CResult_PublicKeyErrorZ_get_ok(owner_conv).compressed_form);
        return ret_arr;
@@ -1074,7 +1120,7 @@ CHECK(!owner->result_ok);
        return *owner->contents.err;
 }
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_CResult_1PublicKeyErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PublicKeyErrorZ* owner_conv = (LDKCResult_PublicKeyErrorZ*)(owner & ~1);
+       LDKCResult_PublicKeyErrorZ* owner_conv = (LDKCResult_PublicKeyErrorZ*)untag_ptr(owner);
        jclass ret_conv = LDKSecp256k1Error_to_java(env, CResult_PublicKeyErrorZ_get_err(owner_conv));
        return ret_conv;
 }
@@ -1084,16 +1130,11 @@ CHECK(owner->result_ok);
        return TxCreationKeys_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TxCreationKeysDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_TxCreationKeysDecodeErrorZ* owner_conv = (LDKCResult_TxCreationKeysDecodeErrorZ*)(owner & ~1);
+       LDKCResult_TxCreationKeysDecodeErrorZ* owner_conv = (LDKCResult_TxCreationKeysDecodeErrorZ*)untag_ptr(owner);
        LDKTxCreationKeys ret_var = CResult_TxCreationKeysDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1102,16 +1143,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TxCreationKeysDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_TxCreationKeysDecodeErrorZ* owner_conv = (LDKCResult_TxCreationKeysDecodeErrorZ*)(owner & ~1);
+       LDKCResult_TxCreationKeysDecodeErrorZ* owner_conv = (LDKCResult_TxCreationKeysDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_TxCreationKeysDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1120,16 +1156,11 @@ CHECK(owner->result_ok);
        return ChannelPublicKeys_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelPublicKeysDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelPublicKeysDecodeErrorZ* owner_conv = (LDKCResult_ChannelPublicKeysDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelPublicKeysDecodeErrorZ* owner_conv = (LDKCResult_ChannelPublicKeysDecodeErrorZ*)untag_ptr(owner);
        LDKChannelPublicKeys ret_var = CResult_ChannelPublicKeysDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1138,16 +1169,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelPublicKeysDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelPublicKeysDecodeErrorZ* owner_conv = (LDKCResult_ChannelPublicKeysDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelPublicKeysDecodeErrorZ* owner_conv = (LDKCResult_ChannelPublicKeysDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_ChannelPublicKeysDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1156,16 +1182,11 @@ CHECK(owner->result_ok);
        return TxCreationKeys_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TxCreationKeysErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_TxCreationKeysErrorZ* owner_conv = (LDKCResult_TxCreationKeysErrorZ*)(owner & ~1);
+       LDKCResult_TxCreationKeysErrorZ* owner_conv = (LDKCResult_TxCreationKeysErrorZ*)untag_ptr(owner);
        LDKTxCreationKeys ret_var = CResult_TxCreationKeysErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1174,7 +1195,7 @@ CHECK(!owner->result_ok);
        return *owner->contents.err;
 }
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_CResult_1TxCreationKeysErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_TxCreationKeysErrorZ* owner_conv = (LDKCResult_TxCreationKeysErrorZ*)(owner & ~1);
+       LDKCResult_TxCreationKeysErrorZ* owner_conv = (LDKCResult_TxCreationKeysErrorZ*)untag_ptr(owner);
        jclass ret_conv = LDKSecp256k1Error_to_java(env, CResult_TxCreationKeysErrorZ_get_err(owner_conv));
        return ret_conv;
 }
@@ -1196,7 +1217,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKCOption_1u32Z_init (JN
        CHECK(LDKCOption_u32Z_None_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKCOption_1u32Z_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKCOption_u32Z *obj = (LDKCOption_u32Z*)(ptr & ~1);
+       LDKCOption_u32Z *obj = (LDKCOption_u32Z*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKCOption_u32Z_Some: {
                        int32_t some_conv = obj->some;
@@ -1213,16 +1234,11 @@ CHECK(owner->result_ok);
        return HTLCOutputInCommitment_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1HTLCOutputInCommitmentDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_HTLCOutputInCommitmentDecodeErrorZ* owner_conv = (LDKCResult_HTLCOutputInCommitmentDecodeErrorZ*)(owner & ~1);
+       LDKCResult_HTLCOutputInCommitmentDecodeErrorZ* owner_conv = (LDKCResult_HTLCOutputInCommitmentDecodeErrorZ*)untag_ptr(owner);
        LDKHTLCOutputInCommitment ret_var = CResult_HTLCOutputInCommitmentDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1231,16 +1247,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1HTLCOutputInCommitmentDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_HTLCOutputInCommitmentDecodeErrorZ* owner_conv = (LDKCResult_HTLCOutputInCommitmentDecodeErrorZ*)(owner & ~1);
+       LDKCResult_HTLCOutputInCommitmentDecodeErrorZ* owner_conv = (LDKCResult_HTLCOutputInCommitmentDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_HTLCOutputInCommitmentDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1249,16 +1260,11 @@ CHECK(owner->result_ok);
        return CounterpartyChannelTransactionParameters_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyChannelTransactionParametersDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ* owner_conv = (LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ*)(owner & ~1);
+       LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ* owner_conv = (LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ*)untag_ptr(owner);
        LDKCounterpartyChannelTransactionParameters ret_var = CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1267,16 +1273,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyChannelTransactionParametersDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ* owner_conv = (LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ*)(owner & ~1);
+       LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ* owner_conv = (LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1285,16 +1286,11 @@ CHECK(owner->result_ok);
        return ChannelTransactionParameters_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelTransactionParametersDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelTransactionParametersDecodeErrorZ* owner_conv = (LDKCResult_ChannelTransactionParametersDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelTransactionParametersDecodeErrorZ* owner_conv = (LDKCResult_ChannelTransactionParametersDecodeErrorZ*)untag_ptr(owner);
        LDKChannelTransactionParameters ret_var = CResult_ChannelTransactionParametersDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1303,16 +1299,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelTransactionParametersDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelTransactionParametersDecodeErrorZ* owner_conv = (LDKCResult_ChannelTransactionParametersDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelTransactionParametersDecodeErrorZ* owner_conv = (LDKCResult_ChannelTransactionParametersDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_ChannelTransactionParametersDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1321,16 +1312,11 @@ CHECK(owner->result_ok);
        return HolderCommitmentTransaction_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1HolderCommitmentTransactionDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_HolderCommitmentTransactionDecodeErrorZ* owner_conv = (LDKCResult_HolderCommitmentTransactionDecodeErrorZ*)(owner & ~1);
+       LDKCResult_HolderCommitmentTransactionDecodeErrorZ* owner_conv = (LDKCResult_HolderCommitmentTransactionDecodeErrorZ*)untag_ptr(owner);
        LDKHolderCommitmentTransaction ret_var = CResult_HolderCommitmentTransactionDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1339,16 +1325,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1HolderCommitmentTransactionDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_HolderCommitmentTransactionDecodeErrorZ* owner_conv = (LDKCResult_HolderCommitmentTransactionDecodeErrorZ*)(owner & ~1);
+       LDKCResult_HolderCommitmentTransactionDecodeErrorZ* owner_conv = (LDKCResult_HolderCommitmentTransactionDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_HolderCommitmentTransactionDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1357,16 +1338,11 @@ CHECK(owner->result_ok);
        return BuiltCommitmentTransaction_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1BuiltCommitmentTransactionDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_BuiltCommitmentTransactionDecodeErrorZ* owner_conv = (LDKCResult_BuiltCommitmentTransactionDecodeErrorZ*)(owner & ~1);
+       LDKCResult_BuiltCommitmentTransactionDecodeErrorZ* owner_conv = (LDKCResult_BuiltCommitmentTransactionDecodeErrorZ*)untag_ptr(owner);
        LDKBuiltCommitmentTransaction ret_var = CResult_BuiltCommitmentTransactionDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1375,16 +1351,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1BuiltCommitmentTransactionDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_BuiltCommitmentTransactionDecodeErrorZ* owner_conv = (LDKCResult_BuiltCommitmentTransactionDecodeErrorZ*)(owner & ~1);
+       LDKCResult_BuiltCommitmentTransactionDecodeErrorZ* owner_conv = (LDKCResult_BuiltCommitmentTransactionDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_BuiltCommitmentTransactionDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1393,13 +1364,11 @@ CHECK(owner->result_ok);
        return &*owner->contents.result;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TrustedClosingTransactionNoneZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_TrustedClosingTransactionNoneZ* owner_conv = (LDKCResult_TrustedClosingTransactionNoneZ*)(owner & ~1);
+       LDKCResult_TrustedClosingTransactionNoneZ* owner_conv = (LDKCResult_TrustedClosingTransactionNoneZ*)untag_ptr(owner);
        LDKTrustedClosingTransaction ret_var = *CResult_TrustedClosingTransactionNoneZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner & ~1;
+       ret_ref = tag_ptr(ret_var.inner, false);
        return ret_ref;
 }
 
@@ -1408,7 +1377,7 @@ CHECK(!owner->result_ok);
        return *owner->contents.err;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1TrustedClosingTransactionNoneZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_TrustedClosingTransactionNoneZ* owner_conv = (LDKCResult_TrustedClosingTransactionNoneZ*)(owner & ~1);
+       LDKCResult_TrustedClosingTransactionNoneZ* owner_conv = (LDKCResult_TrustedClosingTransactionNoneZ*)untag_ptr(owner);
        CResult_TrustedClosingTransactionNoneZ_get_err(owner_conv);
 }
 
@@ -1417,16 +1386,11 @@ CHECK(owner->result_ok);
        return CommitmentTransaction_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CommitmentTransactionDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_CommitmentTransactionDecodeErrorZ* owner_conv = (LDKCResult_CommitmentTransactionDecodeErrorZ*)(owner & ~1);
+       LDKCResult_CommitmentTransactionDecodeErrorZ* owner_conv = (LDKCResult_CommitmentTransactionDecodeErrorZ*)untag_ptr(owner);
        LDKCommitmentTransaction ret_var = CResult_CommitmentTransactionDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1435,16 +1399,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CommitmentTransactionDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_CommitmentTransactionDecodeErrorZ* owner_conv = (LDKCResult_CommitmentTransactionDecodeErrorZ*)(owner & ~1);
+       LDKCResult_CommitmentTransactionDecodeErrorZ* owner_conv = (LDKCResult_CommitmentTransactionDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_CommitmentTransactionDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1453,13 +1412,11 @@ CHECK(owner->result_ok);
        return &*owner->contents.result;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TrustedCommitmentTransactionNoneZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_TrustedCommitmentTransactionNoneZ* owner_conv = (LDKCResult_TrustedCommitmentTransactionNoneZ*)(owner & ~1);
+       LDKCResult_TrustedCommitmentTransactionNoneZ* owner_conv = (LDKCResult_TrustedCommitmentTransactionNoneZ*)untag_ptr(owner);
        LDKTrustedCommitmentTransaction ret_var = *CResult_TrustedCommitmentTransactionNoneZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner & ~1;
+       ret_ref = tag_ptr(ret_var.inner, false);
        return ret_ref;
 }
 
@@ -1468,7 +1425,7 @@ CHECK(!owner->result_ok);
        return *owner->contents.err;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1TrustedCommitmentTransactionNoneZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_TrustedCommitmentTransactionNoneZ* owner_conv = (LDKCResult_TrustedCommitmentTransactionNoneZ*)(owner & ~1);
+       LDKCResult_TrustedCommitmentTransactionNoneZ* owner_conv = (LDKCResult_TrustedCommitmentTransactionNoneZ*)untag_ptr(owner);
        CResult_TrustedCommitmentTransactionNoneZ_get_err(owner_conv);
 }
 
@@ -1477,7 +1434,7 @@ CHECK(owner->result_ok);
        return *owner->contents.result;
 }
 JNIEXPORT jobjectArray JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1SignatureZNoneZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_CVec_SignatureZNoneZ* owner_conv = (LDKCResult_CVec_SignatureZNoneZ*)(owner & ~1);
+       LDKCResult_CVec_SignatureZNoneZ* owner_conv = (LDKCResult_CVec_SignatureZNoneZ*)untag_ptr(owner);
        LDKCVec_SignatureZ ret_var = CResult_CVec_SignatureZNoneZ_get_ok(owner_conv);
        jobjectArray ret_arr = NULL;
        ret_arr = (*env)->NewObjectArray(env, ret_var.datalen, arr_of_B_clz, NULL);
@@ -1496,7 +1453,7 @@ CHECK(!owner->result_ok);
        return *owner->contents.err;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1SignatureZNoneZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_CVec_SignatureZNoneZ* owner_conv = (LDKCResult_CVec_SignatureZNoneZ*)(owner & ~1);
+       LDKCResult_CVec_SignatureZNoneZ* owner_conv = (LDKCResult_CVec_SignatureZNoneZ*)untag_ptr(owner);
        CResult_CVec_SignatureZNoneZ_get_err(owner_conv);
 }
 
@@ -1505,16 +1462,11 @@ CHECK(owner->result_ok);
        return ShutdownScript_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownScriptDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ShutdownScriptDecodeErrorZ* owner_conv = (LDKCResult_ShutdownScriptDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ShutdownScriptDecodeErrorZ* owner_conv = (LDKCResult_ShutdownScriptDecodeErrorZ*)untag_ptr(owner);
        LDKShutdownScript ret_var = CResult_ShutdownScriptDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1523,16 +1475,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownScriptDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ShutdownScriptDecodeErrorZ* owner_conv = (LDKCResult_ShutdownScriptDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ShutdownScriptDecodeErrorZ* owner_conv = (LDKCResult_ShutdownScriptDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_ShutdownScriptDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1541,16 +1488,11 @@ CHECK(owner->result_ok);
        return ShutdownScript_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownScriptInvalidShutdownScriptZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ShutdownScriptInvalidShutdownScriptZ* owner_conv = (LDKCResult_ShutdownScriptInvalidShutdownScriptZ*)(owner & ~1);
+       LDKCResult_ShutdownScriptInvalidShutdownScriptZ* owner_conv = (LDKCResult_ShutdownScriptInvalidShutdownScriptZ*)untag_ptr(owner);
        LDKShutdownScript ret_var = CResult_ShutdownScriptInvalidShutdownScriptZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1559,16 +1501,11 @@ CHECK(!owner->result_ok);
        return InvalidShutdownScript_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownScriptInvalidShutdownScriptZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ShutdownScriptInvalidShutdownScriptZ* owner_conv = (LDKCResult_ShutdownScriptInvalidShutdownScriptZ*)(owner & ~1);
+       LDKCResult_ShutdownScriptInvalidShutdownScriptZ* owner_conv = (LDKCResult_ShutdownScriptInvalidShutdownScriptZ*)untag_ptr(owner);
        LDKInvalidShutdownScript ret_var = CResult_ShutdownScriptInvalidShutdownScriptZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1577,7 +1514,7 @@ CHECK(owner->result_ok);
        return *owner->contents.result;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NoneErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NoneErrorZ* owner_conv = (LDKCResult_NoneErrorZ*)(owner & ~1);
+       LDKCResult_NoneErrorZ* owner_conv = (LDKCResult_NoneErrorZ*)untag_ptr(owner);
        CResult_NoneErrorZ_get_ok(owner_conv);
 }
 
@@ -1586,7 +1523,7 @@ CHECK(!owner->result_ok);
        return *owner->contents.err;
 }
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_CResult_1NoneErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NoneErrorZ* owner_conv = (LDKCResult_NoneErrorZ*)(owner & ~1);
+       LDKCResult_NoneErrorZ* owner_conv = (LDKCResult_NoneErrorZ*)untag_ptr(owner);
        jclass ret_conv = LDKIOError_to_java(env, CResult_NoneErrorZ_get_err(owner_conv));
        return ret_conv;
 }
@@ -1596,16 +1533,11 @@ CHECK(owner->result_ok);
        return RouteHop_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHopDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_RouteHopDecodeErrorZ* owner_conv = (LDKCResult_RouteHopDecodeErrorZ*)(owner & ~1);
+       LDKCResult_RouteHopDecodeErrorZ* owner_conv = (LDKCResult_RouteHopDecodeErrorZ*)untag_ptr(owner);
        LDKRouteHop ret_var = CResult_RouteHopDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1614,16 +1546,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHopDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_RouteHopDecodeErrorZ* owner_conv = (LDKCResult_RouteHopDecodeErrorZ*)(owner & ~1);
+       LDKCResult_RouteHopDecodeErrorZ* owner_conv = (LDKCResult_RouteHopDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_RouteHopDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1646,16 +1573,11 @@ CHECK(owner->result_ok);
        return Route_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_RouteDecodeErrorZ* owner_conv = (LDKCResult_RouteDecodeErrorZ*)(owner & ~1);
+       LDKCResult_RouteDecodeErrorZ* owner_conv = (LDKCResult_RouteDecodeErrorZ*)untag_ptr(owner);
        LDKRoute ret_var = CResult_RouteDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1664,16 +1586,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_RouteDecodeErrorZ* owner_conv = (LDKCResult_RouteDecodeErrorZ*)(owner & ~1);
+       LDKCResult_RouteDecodeErrorZ* owner_conv = (LDKCResult_RouteDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_RouteDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1682,16 +1599,11 @@ CHECK(owner->result_ok);
        return RouteParameters_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteParametersDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_RouteParametersDecodeErrorZ* owner_conv = (LDKCResult_RouteParametersDecodeErrorZ*)(owner & ~1);
+       LDKCResult_RouteParametersDecodeErrorZ* owner_conv = (LDKCResult_RouteParametersDecodeErrorZ*)untag_ptr(owner);
        LDKRouteParameters ret_var = CResult_RouteParametersDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1700,16 +1612,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteParametersDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_RouteParametersDecodeErrorZ* owner_conv = (LDKCResult_RouteParametersDecodeErrorZ*)(owner & ~1);
+       LDKCResult_RouteParametersDecodeErrorZ* owner_conv = (LDKCResult_RouteParametersDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_RouteParametersDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1737,7 +1644,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKCOption_1u64Z_init (JN
        CHECK(LDKCOption_u64Z_None_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKCOption_1u64Z_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKCOption_u64Z *obj = (LDKCOption_u64Z*)(ptr & ~1);
+       LDKCOption_u64Z *obj = (LDKCOption_u64Z*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKCOption_u64Z_Some: {
                        int64_t some_conv = obj->some;
@@ -1759,16 +1666,11 @@ CHECK(owner->result_ok);
        return PaymentParameters_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentParametersDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PaymentParametersDecodeErrorZ* owner_conv = (LDKCResult_PaymentParametersDecodeErrorZ*)(owner & ~1);
+       LDKCResult_PaymentParametersDecodeErrorZ* owner_conv = (LDKCResult_PaymentParametersDecodeErrorZ*)untag_ptr(owner);
        LDKPaymentParameters ret_var = CResult_PaymentParametersDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1777,16 +1679,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentParametersDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PaymentParametersDecodeErrorZ* owner_conv = (LDKCResult_PaymentParametersDecodeErrorZ*)(owner & ~1);
+       LDKCResult_PaymentParametersDecodeErrorZ* owner_conv = (LDKCResult_PaymentParametersDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_PaymentParametersDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1802,16 +1699,11 @@ CHECK(owner->result_ok);
        return RouteHint_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHintDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_RouteHintDecodeErrorZ* owner_conv = (LDKCResult_RouteHintDecodeErrorZ*)(owner & ~1);
+       LDKCResult_RouteHintDecodeErrorZ* owner_conv = (LDKCResult_RouteHintDecodeErrorZ*)untag_ptr(owner);
        LDKRouteHint ret_var = CResult_RouteHintDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1820,16 +1712,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHintDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_RouteHintDecodeErrorZ* owner_conv = (LDKCResult_RouteHintDecodeErrorZ*)(owner & ~1);
+       LDKCResult_RouteHintDecodeErrorZ* owner_conv = (LDKCResult_RouteHintDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_RouteHintDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1838,16 +1725,11 @@ CHECK(owner->result_ok);
        return RouteHintHop_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHintHopDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_RouteHintHopDecodeErrorZ* owner_conv = (LDKCResult_RouteHintHopDecodeErrorZ*)(owner & ~1);
+       LDKCResult_RouteHintHopDecodeErrorZ* owner_conv = (LDKCResult_RouteHintHopDecodeErrorZ*)untag_ptr(owner);
        LDKRouteHintHop ret_var = CResult_RouteHintHopDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1856,16 +1738,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHintHopDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_RouteHintHopDecodeErrorZ* owner_conv = (LDKCResult_RouteHintHopDecodeErrorZ*)(owner & ~1);
+       LDKCResult_RouteHintHopDecodeErrorZ* owner_conv = (LDKCResult_RouteHintHopDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_RouteHintHopDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1881,16 +1758,11 @@ CHECK(owner->result_ok);
        return Route_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteLightningErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_RouteLightningErrorZ* owner_conv = (LDKCResult_RouteLightningErrorZ*)(owner & ~1);
+       LDKCResult_RouteLightningErrorZ* owner_conv = (LDKCResult_RouteLightningErrorZ*)untag_ptr(owner);
        LDKRoute ret_var = CResult_RouteLightningErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1899,16 +1771,11 @@ CHECK(!owner->result_ok);
        return LightningError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteLightningErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_RouteLightningErrorZ* owner_conv = (LDKCResult_RouteLightningErrorZ*)(owner & ~1);
+       LDKCResult_RouteLightningErrorZ* owner_conv = (LDKCResult_RouteLightningErrorZ*)untag_ptr(owner);
        LDKLightningError ret_var = CResult_RouteLightningErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -1929,7 +1796,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKPaymentPurpose_init (J
        CHECK(LDKPaymentPurpose_SpontaneousPayment_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKPaymentPurpose_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKPaymentPurpose *obj = (LDKPaymentPurpose*)(ptr & ~1);
+       LDKPaymentPurpose *obj = (LDKPaymentPurpose*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKPaymentPurpose_InvoicePayment: {
                        int8_tArray payment_preimage_arr = (*env)->NewByteArray(env, 32);
@@ -1951,10 +1818,10 @@ CHECK(owner->result_ok);
        return PaymentPurpose_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentPurposeDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PaymentPurposeDecodeErrorZ* owner_conv = (LDKCResult_PaymentPurposeDecodeErrorZ*)(owner & ~1);
+       LDKCResult_PaymentPurposeDecodeErrorZ* owner_conv = (LDKCResult_PaymentPurposeDecodeErrorZ*)untag_ptr(owner);
        LDKPaymentPurpose *ret_copy = MALLOC(sizeof(LDKPaymentPurpose), "LDKPaymentPurpose");
        *ret_copy = CResult_PaymentPurposeDecodeErrorZ_get_ok(owner_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -1963,16 +1830,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentPurposeDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PaymentPurposeDecodeErrorZ* owner_conv = (LDKCResult_PaymentPurposeDecodeErrorZ*)(owner & ~1);
+       LDKCResult_PaymentPurposeDecodeErrorZ* owner_conv = (LDKCResult_PaymentPurposeDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_PaymentPurposeDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -2035,7 +1897,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKClosureReason_init (JN
        CHECK(LDKClosureReason_OutdatedChannelManager_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKClosureReason_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKClosureReason *obj = (LDKClosureReason*)(ptr & ~1);
+       LDKClosureReason *obj = (LDKClosureReason*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKClosureReason_CounterpartyForceClosed: {
                        LDKStr peer_msg_str = obj->counterparty_force_closed.peer_msg;
@@ -2085,10 +1947,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKCOption_1ClosureReason
        CHECK(LDKCOption_ClosureReasonZ_None_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKCOption_1ClosureReasonZ_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKCOption_ClosureReasonZ *obj = (LDKCOption_ClosureReasonZ*)(ptr & ~1);
+       LDKCOption_ClosureReasonZ *obj = (LDKCOption_ClosureReasonZ*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKCOption_ClosureReasonZ_Some: {
-                       int64_t some_ref = ((uintptr_t)&obj->some) | 1;
+                       int64_t some_ref = tag_ptr(&obj->some, false);
                        return (*env)->NewObject(env, LDKCOption_ClosureReasonZ_Some_class, LDKCOption_ClosureReasonZ_Some_meth, some_ref);
                }
                case LDKCOption_ClosureReasonZ_None: {
@@ -2102,10 +1964,10 @@ CHECK(owner->result_ok);
        return COption_ClosureReasonZ_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1ClosureReasonZDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_COption_ClosureReasonZDecodeErrorZ* owner_conv = (LDKCResult_COption_ClosureReasonZDecodeErrorZ*)(owner & ~1);
+       LDKCResult_COption_ClosureReasonZDecodeErrorZ* owner_conv = (LDKCResult_COption_ClosureReasonZDecodeErrorZ*)untag_ptr(owner);
        LDKCOption_ClosureReasonZ *ret_copy = MALLOC(sizeof(LDKCOption_ClosureReasonZ), "LDKCOption_ClosureReasonZ");
        *ret_copy = CResult_COption_ClosureReasonZDecodeErrorZ_get_ok(owner_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -2114,16 +1976,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1ClosureReasonZDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_COption_ClosureReasonZDecodeErrorZ* owner_conv = (LDKCResult_COption_ClosureReasonZDecodeErrorZ*)(owner & ~1);
+       LDKCResult_COption_ClosureReasonZDecodeErrorZ* owner_conv = (LDKCResult_COption_ClosureReasonZDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_COption_ClosureReasonZDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -2151,7 +2008,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKHTLCDestination_init (
        CHECK(LDKHTLCDestination_FailedPayment_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKHTLCDestination_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKHTLCDestination *obj = (LDKHTLCDestination*)(ptr & ~1);
+       LDKHTLCDestination *obj = (LDKHTLCDestination*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKHTLCDestination_NextHopChannel: {
                        int8_tArray node_id_arr = (*env)->NewByteArray(env, 33);
@@ -2189,10 +2046,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKCOption_1HTLCDestinati
        CHECK(LDKCOption_HTLCDestinationZ_None_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKCOption_1HTLCDestinationZ_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKCOption_HTLCDestinationZ *obj = (LDKCOption_HTLCDestinationZ*)(ptr & ~1);
+       LDKCOption_HTLCDestinationZ *obj = (LDKCOption_HTLCDestinationZ*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKCOption_HTLCDestinationZ_Some: {
-                       int64_t some_ref = ((uintptr_t)&obj->some) | 1;
+                       int64_t some_ref = tag_ptr(&obj->some, false);
                        return (*env)->NewObject(env, LDKCOption_HTLCDestinationZ_Some_class, LDKCOption_HTLCDestinationZ_Some_meth, some_ref);
                }
                case LDKCOption_HTLCDestinationZ_None: {
@@ -2206,10 +2063,10 @@ CHECK(owner->result_ok);
        return COption_HTLCDestinationZ_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1HTLCDestinationZDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_COption_HTLCDestinationZDecodeErrorZ* owner_conv = (LDKCResult_COption_HTLCDestinationZDecodeErrorZ*)(owner & ~1);
+       LDKCResult_COption_HTLCDestinationZDecodeErrorZ* owner_conv = (LDKCResult_COption_HTLCDestinationZDecodeErrorZ*)untag_ptr(owner);
        LDKCOption_HTLCDestinationZ *ret_copy = MALLOC(sizeof(LDKCOption_HTLCDestinationZ), "LDKCOption_HTLCDestinationZ");
        *ret_copy = CResult_COption_HTLCDestinationZDecodeErrorZ_get_ok(owner_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -2218,16 +2075,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1HTLCDestinationZDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_COption_HTLCDestinationZDecodeErrorZ* owner_conv = (LDKCResult_COption_HTLCDestinationZDecodeErrorZ*)(owner & ~1);
+       LDKCResult_COption_HTLCDestinationZDecodeErrorZ* owner_conv = (LDKCResult_COption_HTLCDestinationZDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_COption_HTLCDestinationZDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -2255,15 +2107,13 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKNetworkUpdate_init (JN
        CHECK(LDKNetworkUpdate_NodeFailure_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKNetworkUpdate_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKNetworkUpdate *obj = (LDKNetworkUpdate*)(ptr & ~1);
+       LDKNetworkUpdate *obj = (LDKNetworkUpdate*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKNetworkUpdate_ChannelUpdateMessage: {
                        LDKChannelUpdate msg_var = obj->channel_update_message.msg;
                        int64_t msg_ref = 0;
-                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uintptr_t)msg_var.inner & ~1;
+                       msg_ref = tag_ptr(msg_var.inner, false);
                        return (*env)->NewObject(env, LDKNetworkUpdate_ChannelUpdateMessage_class, LDKNetworkUpdate_ChannelUpdateMessage_meth, msg_ref);
                }
                case LDKNetworkUpdate_ChannelFailure: {
@@ -2297,10 +2147,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKCOption_1NetworkUpdate
        CHECK(LDKCOption_NetworkUpdateZ_None_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKCOption_1NetworkUpdateZ_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKCOption_NetworkUpdateZ *obj = (LDKCOption_NetworkUpdateZ*)(ptr & ~1);
+       LDKCOption_NetworkUpdateZ *obj = (LDKCOption_NetworkUpdateZ*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKCOption_NetworkUpdateZ_Some: {
-                       int64_t some_ref = ((uintptr_t)&obj->some) | 1;
+                       int64_t some_ref = tag_ptr(&obj->some, false);
                        return (*env)->NewObject(env, LDKCOption_NetworkUpdateZ_Some_class, LDKCOption_NetworkUpdateZ_Some_meth, some_ref);
                }
                case LDKCOption_NetworkUpdateZ_None: {
@@ -2333,34 +2183,28 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKSpendableOutputDescrip
        CHECK(LDKSpendableOutputDescriptor_StaticPaymentOutput_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKSpendableOutputDescriptor_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKSpendableOutputDescriptor *obj = (LDKSpendableOutputDescriptor*)(ptr & ~1);
+       LDKSpendableOutputDescriptor *obj = (LDKSpendableOutputDescriptor*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKSpendableOutputDescriptor_StaticOutput: {
                        LDKOutPoint outpoint_var = obj->static_output.outpoint;
                        int64_t outpoint_ref = 0;
-                       CHECK((((uintptr_t)outpoint_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&outpoint_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(outpoint_var);
-                       outpoint_ref = (uintptr_t)outpoint_var.inner & ~1;
-                       int64_t output_ref = ((uintptr_t)&obj->static_output.output) | 1;
-                       return (*env)->NewObject(env, LDKSpendableOutputDescriptor_StaticOutput_class, LDKSpendableOutputDescriptor_StaticOutput_meth, outpoint_ref, (int64_t)output_ref);
+                       outpoint_ref = tag_ptr(outpoint_var.inner, false);
+                       LDKTxOut* output_ref = &obj->static_output.output;
+                       return (*env)->NewObject(env, LDKSpendableOutputDescriptor_StaticOutput_class, LDKSpendableOutputDescriptor_StaticOutput_meth, outpoint_ref, tag_ptr(output_ref, false));
                }
                case LDKSpendableOutputDescriptor_DelayedPaymentOutput: {
                        LDKDelayedPaymentOutputDescriptor delayed_payment_output_var = obj->delayed_payment_output;
                        int64_t delayed_payment_output_ref = 0;
-                       CHECK((((uintptr_t)delayed_payment_output_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&delayed_payment_output_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(delayed_payment_output_var);
-                       delayed_payment_output_ref = (uintptr_t)delayed_payment_output_var.inner & ~1;
+                       delayed_payment_output_ref = tag_ptr(delayed_payment_output_var.inner, false);
                        return (*env)->NewObject(env, LDKSpendableOutputDescriptor_DelayedPaymentOutput_class, LDKSpendableOutputDescriptor_DelayedPaymentOutput_meth, delayed_payment_output_ref);
                }
                case LDKSpendableOutputDescriptor_StaticPaymentOutput: {
                        LDKStaticPaymentOutputDescriptor static_payment_output_var = obj->static_payment_output;
                        int64_t static_payment_output_ref = 0;
-                       CHECK((((uintptr_t)static_payment_output_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&static_payment_output_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(static_payment_output_var);
-                       static_payment_output_ref = (uintptr_t)static_payment_output_var.inner & ~1;
+                       static_payment_output_ref = tag_ptr(static_payment_output_var.inner, false);
                        return (*env)->NewObject(env, LDKSpendableOutputDescriptor_StaticPaymentOutput_class, LDKSpendableOutputDescriptor_StaticPaymentOutput_meth, static_payment_output_ref);
                }
                default: abort();
@@ -2488,7 +2332,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKEvent_init (JNIEnv *en
        CHECK(LDKEvent_HTLCHandlingFailed_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKEvent_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKEvent *obj = (LDKEvent*)(ptr & ~1);
+       LDKEvent *obj = (LDKEvent*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKEvent_FundingGenerationReady: {
                        int8_tArray temporary_channel_id_arr = (*env)->NewByteArray(env, 32);
@@ -2506,14 +2350,14 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKEvent_1ref_1from_1ptr(JN
                        int8_tArray payment_hash_arr = (*env)->NewByteArray(env, 32);
                        (*env)->SetByteArrayRegion(env, payment_hash_arr, 0, 32, obj->payment_received.payment_hash.data);
                        int64_t amount_msat_conv = obj->payment_received.amount_msat;
-                       int64_t purpose_ref = ((uintptr_t)&obj->payment_received.purpose) | 1;
+                       int64_t purpose_ref = tag_ptr(&obj->payment_received.purpose, false);
                        return (*env)->NewObject(env, LDKEvent_PaymentReceived_class, LDKEvent_PaymentReceived_meth, payment_hash_arr, amount_msat_conv, purpose_ref);
                }
                case LDKEvent_PaymentClaimed: {
                        int8_tArray payment_hash_arr = (*env)->NewByteArray(env, 32);
                        (*env)->SetByteArrayRegion(env, payment_hash_arr, 0, 32, obj->payment_claimed.payment_hash.data);
                        int64_t amount_msat_conv = obj->payment_claimed.amount_msat;
-                       int64_t purpose_ref = ((uintptr_t)&obj->payment_claimed.purpose) | 1;
+                       int64_t purpose_ref = tag_ptr(&obj->payment_claimed.purpose, false);
                        return (*env)->NewObject(env, LDKEvent_PaymentClaimed_class, LDKEvent_PaymentClaimed_meth, payment_hash_arr, amount_msat_conv, purpose_ref);
                }
                case LDKEvent_PaymentSent: {
@@ -2523,7 +2367,7 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKEvent_1ref_1from_1ptr(JN
                        (*env)->SetByteArrayRegion(env, payment_preimage_arr, 0, 32, obj->payment_sent.payment_preimage.data);
                        int8_tArray payment_hash_arr = (*env)->NewByteArray(env, 32);
                        (*env)->SetByteArrayRegion(env, payment_hash_arr, 0, 32, obj->payment_sent.payment_hash.data);
-                       int64_t fee_paid_msat_ref = ((uintptr_t)&obj->payment_sent.fee_paid_msat) | 1;
+                       int64_t fee_paid_msat_ref = tag_ptr(&obj->payment_sent.fee_paid_msat, false);
                        return (*env)->NewObject(env, LDKEvent_PaymentSent_class, LDKEvent_PaymentSent_meth, payment_id_arr, payment_preimage_arr, payment_hash_arr, fee_paid_msat_ref);
                }
                case LDKEvent_PaymentFailed: {
@@ -2545,10 +2389,8 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKEvent_1ref_1from_1ptr(JN
                        for (size_t k = 0; k < path_var.datalen; k++) {
                                LDKRouteHop path_conv_10_var = path_var.data[k];
                                int64_t path_conv_10_ref = 0;
-                               CHECK((((uintptr_t)path_conv_10_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                               CHECK((((uintptr_t)&path_conv_10_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                                CHECK_INNER_FIELD_ACCESS_OR_NULL(path_conv_10_var);
-                               path_conv_10_ref = (uintptr_t)path_conv_10_var.inner & ~1;
+                               path_conv_10_ref = tag_ptr(path_conv_10_var.inner, false);
                                path_arr_ptr[k] = path_conv_10_ref;
                        }
                        (*env)->ReleasePrimitiveArrayCritical(env, path_arr, path_arr_ptr, 0);
@@ -2560,7 +2402,7 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKEvent_1ref_1from_1ptr(JN
                        int8_tArray payment_hash_arr = (*env)->NewByteArray(env, 32);
                        (*env)->SetByteArrayRegion(env, payment_hash_arr, 0, 32, obj->payment_path_failed.payment_hash.data);
                        jboolean rejected_by_dest_conv = obj->payment_path_failed.rejected_by_dest;
-                       int64_t network_update_ref = ((uintptr_t)&obj->payment_path_failed.network_update) | 1;
+                       int64_t network_update_ref = tag_ptr(&obj->payment_path_failed.network_update, false);
                        jboolean all_paths_failed_conv = obj->payment_path_failed.all_paths_failed;
                        LDKCVec_RouteHopZ path_var = obj->payment_path_failed.path;
                        int64_tArray path_arr = NULL;
@@ -2569,22 +2411,16 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKEvent_1ref_1from_1ptr(JN
                        for (size_t k = 0; k < path_var.datalen; k++) {
                                LDKRouteHop path_conv_10_var = path_var.data[k];
                                int64_t path_conv_10_ref = 0;
-                               CHECK((((uintptr_t)path_conv_10_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                               CHECK((((uintptr_t)&path_conv_10_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                                CHECK_INNER_FIELD_ACCESS_OR_NULL(path_conv_10_var);
-                               path_conv_10_ref = (uintptr_t)path_conv_10_var.inner & ~1;
+                               path_conv_10_ref = tag_ptr(path_conv_10_var.inner, false);
                                path_arr_ptr[k] = path_conv_10_ref;
                        }
                        (*env)->ReleasePrimitiveArrayCritical(env, path_arr, path_arr_ptr, 0);
-                       int64_t short_channel_id_ref = ((uintptr_t)&obj->payment_path_failed.short_channel_id) | 1;
+                       int64_t short_channel_id_ref = tag_ptr(&obj->payment_path_failed.short_channel_id, false);
                        LDKRouteParameters retry_var = obj->payment_path_failed.retry;
                        int64_t retry_ref = 0;
-                       if ((uintptr_t)retry_var.inner > 4096) {
-                               CHECK((((uintptr_t)retry_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                               CHECK((((uintptr_t)&retry_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(retry_var);
-                               retry_ref = (uintptr_t)retry_var.inner & ~1;
-                       }
+                       retry_ref = tag_ptr(retry_var.inner, false);
                        return (*env)->NewObject(env, LDKEvent_PaymentPathFailed_class, LDKEvent_PaymentPathFailed_meth, payment_id_arr, payment_hash_arr, rejected_by_dest_conv, network_update_ref, all_paths_failed_conv, path_arr, short_channel_id_ref, retry_ref);
                }
                case LDKEvent_ProbeSuccessful: {
@@ -2599,10 +2435,8 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKEvent_1ref_1from_1ptr(JN
                        for (size_t k = 0; k < path_var.datalen; k++) {
                                LDKRouteHop path_conv_10_var = path_var.data[k];
                                int64_t path_conv_10_ref = 0;
-                               CHECK((((uintptr_t)path_conv_10_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                               CHECK((((uintptr_t)&path_conv_10_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                                CHECK_INNER_FIELD_ACCESS_OR_NULL(path_conv_10_var);
-                               path_conv_10_ref = (uintptr_t)path_conv_10_var.inner & ~1;
+                               path_conv_10_ref = tag_ptr(path_conv_10_var.inner, false);
                                path_arr_ptr[k] = path_conv_10_ref;
                        }
                        (*env)->ReleasePrimitiveArrayCritical(env, path_arr, path_arr_ptr, 0);
@@ -2620,14 +2454,12 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKEvent_1ref_1from_1ptr(JN
                        for (size_t k = 0; k < path_var.datalen; k++) {
                                LDKRouteHop path_conv_10_var = path_var.data[k];
                                int64_t path_conv_10_ref = 0;
-                               CHECK((((uintptr_t)path_conv_10_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                               CHECK((((uintptr_t)&path_conv_10_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                                CHECK_INNER_FIELD_ACCESS_OR_NULL(path_conv_10_var);
-                               path_conv_10_ref = (uintptr_t)path_conv_10_var.inner & ~1;
+                               path_conv_10_ref = tag_ptr(path_conv_10_var.inner, false);
                                path_arr_ptr[k] = path_conv_10_ref;
                        }
                        (*env)->ReleasePrimitiveArrayCritical(env, path_arr, path_arr_ptr, 0);
-                       int64_t short_channel_id_ref = ((uintptr_t)&obj->probe_failed.short_channel_id) | 1;
+                       int64_t short_channel_id_ref = tag_ptr(&obj->probe_failed.short_channel_id, false);
                        return (*env)->NewObject(env, LDKEvent_ProbeFailed_class, LDKEvent_ProbeFailed_meth, payment_id_arr, payment_hash_arr, path_arr, short_channel_id_ref);
                }
                case LDKEvent_PendingHTLCsForwardable: {
@@ -2640,7 +2472,7 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKEvent_1ref_1from_1ptr(JN
                        outputs_arr = (*env)->NewLongArray(env, outputs_var.datalen);
                        int64_t *outputs_arr_ptr = (*env)->GetPrimitiveArrayCritical(env, outputs_arr, NULL);
                        for (size_t b = 0; b < outputs_var.datalen; b++) {
-                               int64_t outputs_conv_27_ref = ((uintptr_t)&outputs_var.data[b]) | 1;
+                               int64_t outputs_conv_27_ref = tag_ptr(&outputs_var.data[b], false);
                                outputs_arr_ptr[b] = outputs_conv_27_ref;
                        }
                        (*env)->ReleasePrimitiveArrayCritical(env, outputs_arr, outputs_arr_ptr, 0);
@@ -2651,7 +2483,7 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKEvent_1ref_1from_1ptr(JN
                        (*env)->SetByteArrayRegion(env, prev_channel_id_arr, 0, 32, obj->payment_forwarded.prev_channel_id.data);
                        int8_tArray next_channel_id_arr = (*env)->NewByteArray(env, 32);
                        (*env)->SetByteArrayRegion(env, next_channel_id_arr, 0, 32, obj->payment_forwarded.next_channel_id.data);
-                       int64_t fee_earned_msat_ref = ((uintptr_t)&obj->payment_forwarded.fee_earned_msat) | 1;
+                       int64_t fee_earned_msat_ref = tag_ptr(&obj->payment_forwarded.fee_earned_msat, false);
                        jboolean claim_from_onchain_tx_conv = obj->payment_forwarded.claim_from_onchain_tx;
                        return (*env)->NewObject(env, LDKEvent_PaymentForwarded_class, LDKEvent_PaymentForwarded_meth, prev_channel_id_arr, next_channel_id_arr, fee_earned_msat_ref, claim_from_onchain_tx_conv);
                }
@@ -2659,7 +2491,7 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKEvent_1ref_1from_1ptr(JN
                        int8_tArray channel_id_arr = (*env)->NewByteArray(env, 32);
                        (*env)->SetByteArrayRegion(env, channel_id_arr, 0, 32, obj->channel_closed.channel_id.data);
                        int64_t user_channel_id_conv = obj->channel_closed.user_channel_id;
-                       int64_t reason_ref = ((uintptr_t)&obj->channel_closed.reason) | 1;
+                       int64_t reason_ref = tag_ptr(&obj->channel_closed.reason, false);
                        return (*env)->NewObject(env, LDKEvent_ChannelClosed_class, LDKEvent_ChannelClosed_meth, channel_id_arr, user_channel_id_conv, reason_ref);
                }
                case LDKEvent_DiscardFunding: {
@@ -2679,16 +2511,14 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKEvent_1ref_1from_1ptr(JN
                        int64_t push_msat_conv = obj->open_channel_request.push_msat;
                        LDKChannelTypeFeatures channel_type_var = obj->open_channel_request.channel_type;
                        int64_t channel_type_ref = 0;
-                       CHECK((((uintptr_t)channel_type_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&channel_type_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_type_var);
-                       channel_type_ref = (uintptr_t)channel_type_var.inner & ~1;
+                       channel_type_ref = tag_ptr(channel_type_var.inner, false);
                        return (*env)->NewObject(env, LDKEvent_OpenChannelRequest_class, LDKEvent_OpenChannelRequest_meth, temporary_channel_id_arr, counterparty_node_id_arr, funding_satoshis_conv, push_msat_conv, channel_type_ref);
                }
                case LDKEvent_HTLCHandlingFailed: {
                        int8_tArray prev_channel_id_arr = (*env)->NewByteArray(env, 32);
                        (*env)->SetByteArrayRegion(env, prev_channel_id_arr, 0, 32, obj->htlc_handling_failed.prev_channel_id.data);
-                       int64_t failed_next_destination_ref = ((uintptr_t)&obj->htlc_handling_failed.failed_next_destination) | 1;
+                       int64_t failed_next_destination_ref = tag_ptr(&obj->htlc_handling_failed.failed_next_destination, false);
                        return (*env)->NewObject(env, LDKEvent_HTLCHandlingFailed_class, LDKEvent_HTLCHandlingFailed_meth, prev_channel_id_arr, failed_next_destination_ref);
                }
                default: abort();
@@ -2711,10 +2541,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKCOption_1EventZ_init (
        CHECK(LDKCOption_EventZ_None_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKCOption_1EventZ_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKCOption_EventZ *obj = (LDKCOption_EventZ*)(ptr & ~1);
+       LDKCOption_EventZ *obj = (LDKCOption_EventZ*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKCOption_EventZ_Some: {
-                       int64_t some_ref = ((uintptr_t)&obj->some) | 1;
+                       int64_t some_ref = tag_ptr(&obj->some, false);
                        return (*env)->NewObject(env, LDKCOption_EventZ_Some_class, LDKCOption_EventZ_Some_meth, some_ref);
                }
                case LDKCOption_EventZ_None: {
@@ -2728,10 +2558,10 @@ CHECK(owner->result_ok);
        return COption_EventZ_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1EventZDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_COption_EventZDecodeErrorZ* owner_conv = (LDKCResult_COption_EventZDecodeErrorZ*)(owner & ~1);
+       LDKCResult_COption_EventZDecodeErrorZ* owner_conv = (LDKCResult_COption_EventZDecodeErrorZ*)untag_ptr(owner);
        LDKCOption_EventZ *ret_copy = MALLOC(sizeof(LDKCOption_EventZ), "LDKCOption_EventZ");
        *ret_copy = CResult_COption_EventZDecodeErrorZ_get_ok(owner_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -2740,16 +2570,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1EventZDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_COption_EventZDecodeErrorZ* owner_conv = (LDKCResult_COption_EventZDecodeErrorZ*)(owner & ~1);
+       LDKCResult_COption_EventZDecodeErrorZ* owner_conv = (LDKCResult_COption_EventZDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_COption_EventZDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -2798,17 +2623,13 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKErrorAction_init (JNIE
        CHECK(LDKErrorAction_SendWarningMessage_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKErrorAction_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKErrorAction *obj = (LDKErrorAction*)(ptr & ~1);
+       LDKErrorAction *obj = (LDKErrorAction*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKErrorAction_DisconnectPeer: {
                        LDKErrorMessage msg_var = obj->disconnect_peer.msg;
                        int64_t msg_ref = 0;
-                       if ((uintptr_t)msg_var.inner > 4096) {
-                               CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                               CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                               msg_ref = (uintptr_t)msg_var.inner & ~1;
-                       }
+                       msg_ref = tag_ptr(msg_var.inner, false);
                        return (*env)->NewObject(env, LDKErrorAction_DisconnectPeer_class, LDKErrorAction_DisconnectPeer_meth, msg_ref);
                }
                case LDKErrorAction_IgnoreError: {
@@ -2824,19 +2645,15 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKErrorAction_1ref_1from_1
                case LDKErrorAction_SendErrorMessage: {
                        LDKErrorMessage msg_var = obj->send_error_message.msg;
                        int64_t msg_ref = 0;
-                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uintptr_t)msg_var.inner & ~1;
+                       msg_ref = tag_ptr(msg_var.inner, false);
                        return (*env)->NewObject(env, LDKErrorAction_SendErrorMessage_class, LDKErrorAction_SendErrorMessage_meth, msg_ref);
                }
                case LDKErrorAction_SendWarningMessage: {
                        LDKWarningMessage msg_var = obj->send_warning_message.msg;
                        int64_t msg_ref = 0;
-                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uintptr_t)msg_var.inner & ~1;
+                       msg_ref = tag_ptr(msg_var.inner, false);
                        jclass log_level_conv = LDKLevel_to_java(env, obj->send_warning_message.log_level);
                        return (*env)->NewObject(env, LDKErrorAction_SendWarningMessage_class, LDKErrorAction_SendWarningMessage_meth, msg_ref, log_level_conv);
                }
@@ -2986,17 +2803,15 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKMessageSendEvent_init
        CHECK(LDKMessageSendEvent_SendGossipTimestampFilter_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKMessageSendEvent_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKMessageSendEvent *obj = (LDKMessageSendEvent*)(ptr & ~1);
+       LDKMessageSendEvent *obj = (LDKMessageSendEvent*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKMessageSendEvent_SendAcceptChannel: {
                        int8_tArray node_id_arr = (*env)->NewByteArray(env, 33);
                        (*env)->SetByteArrayRegion(env, node_id_arr, 0, 33, obj->send_accept_channel.node_id.compressed_form);
                        LDKAcceptChannel msg_var = obj->send_accept_channel.msg;
                        int64_t msg_ref = 0;
-                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uintptr_t)msg_var.inner & ~1;
+                       msg_ref = tag_ptr(msg_var.inner, false);
                        return (*env)->NewObject(env, LDKMessageSendEvent_SendAcceptChannel_class, LDKMessageSendEvent_SendAcceptChannel_meth, node_id_arr, msg_ref);
                }
                case LDKMessageSendEvent_SendOpenChannel: {
@@ -3004,10 +2819,8 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKMessageSendEvent_1ref_1f
                        (*env)->SetByteArrayRegion(env, node_id_arr, 0, 33, obj->send_open_channel.node_id.compressed_form);
                        LDKOpenChannel msg_var = obj->send_open_channel.msg;
                        int64_t msg_ref = 0;
-                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uintptr_t)msg_var.inner & ~1;
+                       msg_ref = tag_ptr(msg_var.inner, false);
                        return (*env)->NewObject(env, LDKMessageSendEvent_SendOpenChannel_class, LDKMessageSendEvent_SendOpenChannel_meth, node_id_arr, msg_ref);
                }
                case LDKMessageSendEvent_SendFundingCreated: {
@@ -3015,10 +2828,8 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKMessageSendEvent_1ref_1f
                        (*env)->SetByteArrayRegion(env, node_id_arr, 0, 33, obj->send_funding_created.node_id.compressed_form);
                        LDKFundingCreated msg_var = obj->send_funding_created.msg;
                        int64_t msg_ref = 0;
-                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uintptr_t)msg_var.inner & ~1;
+                       msg_ref = tag_ptr(msg_var.inner, false);
                        return (*env)->NewObject(env, LDKMessageSendEvent_SendFundingCreated_class, LDKMessageSendEvent_SendFundingCreated_meth, node_id_arr, msg_ref);
                }
                case LDKMessageSendEvent_SendFundingSigned: {
@@ -3026,10 +2837,8 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKMessageSendEvent_1ref_1f
                        (*env)->SetByteArrayRegion(env, node_id_arr, 0, 33, obj->send_funding_signed.node_id.compressed_form);
                        LDKFundingSigned msg_var = obj->send_funding_signed.msg;
                        int64_t msg_ref = 0;
-                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uintptr_t)msg_var.inner & ~1;
+                       msg_ref = tag_ptr(msg_var.inner, false);
                        return (*env)->NewObject(env, LDKMessageSendEvent_SendFundingSigned_class, LDKMessageSendEvent_SendFundingSigned_meth, node_id_arr, msg_ref);
                }
                case LDKMessageSendEvent_SendChannelReady: {
@@ -3037,10 +2846,8 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKMessageSendEvent_1ref_1f
                        (*env)->SetByteArrayRegion(env, node_id_arr, 0, 33, obj->send_channel_ready.node_id.compressed_form);
                        LDKChannelReady msg_var = obj->send_channel_ready.msg;
                        int64_t msg_ref = 0;
-                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uintptr_t)msg_var.inner & ~1;
+                       msg_ref = tag_ptr(msg_var.inner, false);
                        return (*env)->NewObject(env, LDKMessageSendEvent_SendChannelReady_class, LDKMessageSendEvent_SendChannelReady_meth, node_id_arr, msg_ref);
                }
                case LDKMessageSendEvent_SendAnnouncementSignatures: {
@@ -3048,10 +2855,8 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKMessageSendEvent_1ref_1f
                        (*env)->SetByteArrayRegion(env, node_id_arr, 0, 33, obj->send_announcement_signatures.node_id.compressed_form);
                        LDKAnnouncementSignatures msg_var = obj->send_announcement_signatures.msg;
                        int64_t msg_ref = 0;
-                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uintptr_t)msg_var.inner & ~1;
+                       msg_ref = tag_ptr(msg_var.inner, false);
                        return (*env)->NewObject(env, LDKMessageSendEvent_SendAnnouncementSignatures_class, LDKMessageSendEvent_SendAnnouncementSignatures_meth, node_id_arr, msg_ref);
                }
                case LDKMessageSendEvent_UpdateHTLCs: {
@@ -3059,10 +2864,8 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKMessageSendEvent_1ref_1f
                        (*env)->SetByteArrayRegion(env, node_id_arr, 0, 33, obj->update_htl_cs.node_id.compressed_form);
                        LDKCommitmentUpdate updates_var = obj->update_htl_cs.updates;
                        int64_t updates_ref = 0;
-                       CHECK((((uintptr_t)updates_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&updates_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(updates_var);
-                       updates_ref = (uintptr_t)updates_var.inner & ~1;
+                       updates_ref = tag_ptr(updates_var.inner, false);
                        return (*env)->NewObject(env, LDKMessageSendEvent_UpdateHTLCs_class, LDKMessageSendEvent_UpdateHTLCs_meth, node_id_arr, updates_ref);
                }
                case LDKMessageSendEvent_SendRevokeAndACK: {
@@ -3070,10 +2873,8 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKMessageSendEvent_1ref_1f
                        (*env)->SetByteArrayRegion(env, node_id_arr, 0, 33, obj->send_revoke_and_ack.node_id.compressed_form);
                        LDKRevokeAndACK msg_var = obj->send_revoke_and_ack.msg;
                        int64_t msg_ref = 0;
-                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uintptr_t)msg_var.inner & ~1;
+                       msg_ref = tag_ptr(msg_var.inner, false);
                        return (*env)->NewObject(env, LDKMessageSendEvent_SendRevokeAndACK_class, LDKMessageSendEvent_SendRevokeAndACK_meth, node_id_arr, msg_ref);
                }
                case LDKMessageSendEvent_SendClosingSigned: {
@@ -3081,10 +2882,8 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKMessageSendEvent_1ref_1f
                        (*env)->SetByteArrayRegion(env, node_id_arr, 0, 33, obj->send_closing_signed.node_id.compressed_form);
                        LDKClosingSigned msg_var = obj->send_closing_signed.msg;
                        int64_t msg_ref = 0;
-                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uintptr_t)msg_var.inner & ~1;
+                       msg_ref = tag_ptr(msg_var.inner, false);
                        return (*env)->NewObject(env, LDKMessageSendEvent_SendClosingSigned_class, LDKMessageSendEvent_SendClosingSigned_meth, node_id_arr, msg_ref);
                }
                case LDKMessageSendEvent_SendShutdown: {
@@ -3092,10 +2891,8 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKMessageSendEvent_1ref_1f
                        (*env)->SetByteArrayRegion(env, node_id_arr, 0, 33, obj->send_shutdown.node_id.compressed_form);
                        LDKShutdown msg_var = obj->send_shutdown.msg;
                        int64_t msg_ref = 0;
-                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uintptr_t)msg_var.inner & ~1;
+                       msg_ref = tag_ptr(msg_var.inner, false);
                        return (*env)->NewObject(env, LDKMessageSendEvent_SendShutdown_class, LDKMessageSendEvent_SendShutdown_meth, node_id_arr, msg_ref);
                }
                case LDKMessageSendEvent_SendChannelReestablish: {
@@ -3103,43 +2900,33 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKMessageSendEvent_1ref_1f
                        (*env)->SetByteArrayRegion(env, node_id_arr, 0, 33, obj->send_channel_reestablish.node_id.compressed_form);
                        LDKChannelReestablish msg_var = obj->send_channel_reestablish.msg;
                        int64_t msg_ref = 0;
-                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uintptr_t)msg_var.inner & ~1;
+                       msg_ref = tag_ptr(msg_var.inner, false);
                        return (*env)->NewObject(env, LDKMessageSendEvent_SendChannelReestablish_class, LDKMessageSendEvent_SendChannelReestablish_meth, node_id_arr, msg_ref);
                }
                case LDKMessageSendEvent_BroadcastChannelAnnouncement: {
                        LDKChannelAnnouncement msg_var = obj->broadcast_channel_announcement.msg;
                        int64_t msg_ref = 0;
-                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uintptr_t)msg_var.inner & ~1;
+                       msg_ref = tag_ptr(msg_var.inner, false);
                        LDKChannelUpdate update_msg_var = obj->broadcast_channel_announcement.update_msg;
                        int64_t update_msg_ref = 0;
-                       CHECK((((uintptr_t)update_msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&update_msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(update_msg_var);
-                       update_msg_ref = (uintptr_t)update_msg_var.inner & ~1;
+                       update_msg_ref = tag_ptr(update_msg_var.inner, false);
                        return (*env)->NewObject(env, LDKMessageSendEvent_BroadcastChannelAnnouncement_class, LDKMessageSendEvent_BroadcastChannelAnnouncement_meth, msg_ref, update_msg_ref);
                }
                case LDKMessageSendEvent_BroadcastNodeAnnouncement: {
                        LDKNodeAnnouncement msg_var = obj->broadcast_node_announcement.msg;
                        int64_t msg_ref = 0;
-                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uintptr_t)msg_var.inner & ~1;
+                       msg_ref = tag_ptr(msg_var.inner, false);
                        return (*env)->NewObject(env, LDKMessageSendEvent_BroadcastNodeAnnouncement_class, LDKMessageSendEvent_BroadcastNodeAnnouncement_meth, msg_ref);
                }
                case LDKMessageSendEvent_BroadcastChannelUpdate: {
                        LDKChannelUpdate msg_var = obj->broadcast_channel_update.msg;
                        int64_t msg_ref = 0;
-                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uintptr_t)msg_var.inner & ~1;
+                       msg_ref = tag_ptr(msg_var.inner, false);
                        return (*env)->NewObject(env, LDKMessageSendEvent_BroadcastChannelUpdate_class, LDKMessageSendEvent_BroadcastChannelUpdate_meth, msg_ref);
                }
                case LDKMessageSendEvent_SendChannelUpdate: {
@@ -3147,16 +2934,14 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKMessageSendEvent_1ref_1f
                        (*env)->SetByteArrayRegion(env, node_id_arr, 0, 33, obj->send_channel_update.node_id.compressed_form);
                        LDKChannelUpdate msg_var = obj->send_channel_update.msg;
                        int64_t msg_ref = 0;
-                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uintptr_t)msg_var.inner & ~1;
+                       msg_ref = tag_ptr(msg_var.inner, false);
                        return (*env)->NewObject(env, LDKMessageSendEvent_SendChannelUpdate_class, LDKMessageSendEvent_SendChannelUpdate_meth, node_id_arr, msg_ref);
                }
                case LDKMessageSendEvent_HandleError: {
                        int8_tArray node_id_arr = (*env)->NewByteArray(env, 33);
                        (*env)->SetByteArrayRegion(env, node_id_arr, 0, 33, obj->handle_error.node_id.compressed_form);
-                       int64_t action_ref = ((uintptr_t)&obj->handle_error.action) | 1;
+                       int64_t action_ref = tag_ptr(&obj->handle_error.action, false);
                        return (*env)->NewObject(env, LDKMessageSendEvent_HandleError_class, LDKMessageSendEvent_HandleError_meth, node_id_arr, action_ref);
                }
                case LDKMessageSendEvent_SendChannelRangeQuery: {
@@ -3164,10 +2949,8 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKMessageSendEvent_1ref_1f
                        (*env)->SetByteArrayRegion(env, node_id_arr, 0, 33, obj->send_channel_range_query.node_id.compressed_form);
                        LDKQueryChannelRange msg_var = obj->send_channel_range_query.msg;
                        int64_t msg_ref = 0;
-                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uintptr_t)msg_var.inner & ~1;
+                       msg_ref = tag_ptr(msg_var.inner, false);
                        return (*env)->NewObject(env, LDKMessageSendEvent_SendChannelRangeQuery_class, LDKMessageSendEvent_SendChannelRangeQuery_meth, node_id_arr, msg_ref);
                }
                case LDKMessageSendEvent_SendShortIdsQuery: {
@@ -3175,10 +2958,8 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKMessageSendEvent_1ref_1f
                        (*env)->SetByteArrayRegion(env, node_id_arr, 0, 33, obj->send_short_ids_query.node_id.compressed_form);
                        LDKQueryShortChannelIds msg_var = obj->send_short_ids_query.msg;
                        int64_t msg_ref = 0;
-                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uintptr_t)msg_var.inner & ~1;
+                       msg_ref = tag_ptr(msg_var.inner, false);
                        return (*env)->NewObject(env, LDKMessageSendEvent_SendShortIdsQuery_class, LDKMessageSendEvent_SendShortIdsQuery_meth, node_id_arr, msg_ref);
                }
                case LDKMessageSendEvent_SendReplyChannelRange: {
@@ -3186,10 +2967,8 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKMessageSendEvent_1ref_1f
                        (*env)->SetByteArrayRegion(env, node_id_arr, 0, 33, obj->send_reply_channel_range.node_id.compressed_form);
                        LDKReplyChannelRange msg_var = obj->send_reply_channel_range.msg;
                        int64_t msg_ref = 0;
-                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uintptr_t)msg_var.inner & ~1;
+                       msg_ref = tag_ptr(msg_var.inner, false);
                        return (*env)->NewObject(env, LDKMessageSendEvent_SendReplyChannelRange_class, LDKMessageSendEvent_SendReplyChannelRange_meth, node_id_arr, msg_ref);
                }
                case LDKMessageSendEvent_SendGossipTimestampFilter: {
@@ -3197,10 +2976,8 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKMessageSendEvent_1ref_1f
                        (*env)->SetByteArrayRegion(env, node_id_arr, 0, 33, obj->send_gossip_timestamp_filter.node_id.compressed_form);
                        LDKGossipTimestampFilter msg_var = obj->send_gossip_timestamp_filter.msg;
                        int64_t msg_ref = 0;
-                       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-                       msg_ref = (uintptr_t)msg_var.inner & ~1;
+                       msg_ref = tag_ptr(msg_var.inner, false);
                        return (*env)->NewObject(env, LDKMessageSendEvent_SendGossipTimestampFilter_class, LDKMessageSendEvent_SendGossipTimestampFilter_meth, node_id_arr, msg_ref);
                }
                default: abort();
@@ -3218,10 +2995,10 @@ CHECK(owner->result_ok);
        return TxOut_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TxOutAccessErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_TxOutAccessErrorZ* owner_conv = (LDKCResult_TxOutAccessErrorZ*)(owner & ~1);
+       LDKCResult_TxOutAccessErrorZ* owner_conv = (LDKCResult_TxOutAccessErrorZ*)untag_ptr(owner);
        LDKTxOut* ret_ref = MALLOC(sizeof(LDKTxOut), "LDKTxOut");
        *ret_ref = CResult_TxOutAccessErrorZ_get_ok(owner_conv);
-       return (int64_t)ret_ref;
+       return tag_ptr(ret_ref, true);
 }
 
 static inline enum LDKAccessError CResult_TxOutAccessErrorZ_get_err(LDKCResult_TxOutAccessErrorZ *NONNULL_PTR owner){
@@ -3229,7 +3006,7 @@ CHECK(!owner->result_ok);
        return AccessError_clone(&*owner->contents.err);
 }
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_CResult_1TxOutAccessErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_TxOutAccessErrorZ* owner_conv = (LDKCResult_TxOutAccessErrorZ*)(owner & ~1);
+       LDKCResult_TxOutAccessErrorZ* owner_conv = (LDKCResult_TxOutAccessErrorZ*)untag_ptr(owner);
        jclass ret_conv = LDKAccessError_to_java(env, CResult_TxOutAccessErrorZ_get_err(owner_conv));
        return ret_conv;
 }
@@ -3238,7 +3015,7 @@ static inline uintptr_t C2Tuple_usizeTransactionZ_get_a(LDKC2Tuple_usizeTransact
        return owner->a;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1usizeTransactionZ_1get_1a(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_usizeTransactionZ* owner_conv = (LDKC2Tuple_usizeTransactionZ*)(owner & ~1);
+       LDKC2Tuple_usizeTransactionZ* owner_conv = (LDKC2Tuple_usizeTransactionZ*)untag_ptr(owner);
        int64_t ret_conv = C2Tuple_usizeTransactionZ_get_a(owner_conv);
        return ret_conv;
 }
@@ -3247,7 +3024,7 @@ static inline struct LDKTransaction C2Tuple_usizeTransactionZ_get_b(LDKC2Tuple_u
        return owner->b;
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_C2Tuple_1usizeTransactionZ_1get_1b(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_usizeTransactionZ* owner_conv = (LDKC2Tuple_usizeTransactionZ*)(owner & ~1);
+       LDKC2Tuple_usizeTransactionZ* owner_conv = (LDKC2Tuple_usizeTransactionZ*)untag_ptr(owner);
        LDKTransaction ret_var = C2Tuple_usizeTransactionZ_get_b(owner_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -3273,7 +3050,7 @@ CHECK(owner->result_ok);
        return *owner->contents.result;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NoneChannelMonitorUpdateErrZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NoneChannelMonitorUpdateErrZ* owner_conv = (LDKCResult_NoneChannelMonitorUpdateErrZ*)(owner & ~1);
+       LDKCResult_NoneChannelMonitorUpdateErrZ* owner_conv = (LDKCResult_NoneChannelMonitorUpdateErrZ*)untag_ptr(owner);
        CResult_NoneChannelMonitorUpdateErrZ_get_ok(owner_conv);
 }
 
@@ -3282,7 +3059,7 @@ CHECK(!owner->result_ok);
        return ChannelMonitorUpdateErr_clone(&*owner->contents.err);
 }
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_CResult_1NoneChannelMonitorUpdateErrZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NoneChannelMonitorUpdateErrZ* owner_conv = (LDKCResult_NoneChannelMonitorUpdateErrZ*)(owner & ~1);
+       LDKCResult_NoneChannelMonitorUpdateErrZ* owner_conv = (LDKCResult_NoneChannelMonitorUpdateErrZ*)untag_ptr(owner);
        jclass ret_conv = LDKChannelMonitorUpdateErr_to_java(env, CResult_NoneChannelMonitorUpdateErrZ_get_err(owner_conv));
        return ret_conv;
 }
@@ -3318,43 +3095,35 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKMonitorEvent_init (JNI
        CHECK(LDKMonitorEvent_UpdateFailed_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKMonitorEvent_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKMonitorEvent *obj = (LDKMonitorEvent*)(ptr & ~1);
+       LDKMonitorEvent *obj = (LDKMonitorEvent*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKMonitorEvent_HTLCEvent: {
                        LDKHTLCUpdate htlc_event_var = obj->htlc_event;
                        int64_t htlc_event_ref = 0;
-                       CHECK((((uintptr_t)htlc_event_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&htlc_event_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(htlc_event_var);
-                       htlc_event_ref = (uintptr_t)htlc_event_var.inner & ~1;
+                       htlc_event_ref = tag_ptr(htlc_event_var.inner, false);
                        return (*env)->NewObject(env, LDKMonitorEvent_HTLCEvent_class, LDKMonitorEvent_HTLCEvent_meth, htlc_event_ref);
                }
                case LDKMonitorEvent_CommitmentTxConfirmed: {
                        LDKOutPoint commitment_tx_confirmed_var = obj->commitment_tx_confirmed;
                        int64_t commitment_tx_confirmed_ref = 0;
-                       CHECK((((uintptr_t)commitment_tx_confirmed_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&commitment_tx_confirmed_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(commitment_tx_confirmed_var);
-                       commitment_tx_confirmed_ref = (uintptr_t)commitment_tx_confirmed_var.inner & ~1;
+                       commitment_tx_confirmed_ref = tag_ptr(commitment_tx_confirmed_var.inner, false);
                        return (*env)->NewObject(env, LDKMonitorEvent_CommitmentTxConfirmed_class, LDKMonitorEvent_CommitmentTxConfirmed_meth, commitment_tx_confirmed_ref);
                }
                case LDKMonitorEvent_UpdateCompleted: {
                        LDKOutPoint funding_txo_var = obj->update_completed.funding_txo;
                        int64_t funding_txo_ref = 0;
-                       CHECK((((uintptr_t)funding_txo_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&funding_txo_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(funding_txo_var);
-                       funding_txo_ref = (uintptr_t)funding_txo_var.inner & ~1;
+                       funding_txo_ref = tag_ptr(funding_txo_var.inner, false);
                        int64_t monitor_update_id_conv = obj->update_completed.monitor_update_id;
                        return (*env)->NewObject(env, LDKMonitorEvent_UpdateCompleted_class, LDKMonitorEvent_UpdateCompleted_meth, funding_txo_ref, monitor_update_id_conv);
                }
                case LDKMonitorEvent_UpdateFailed: {
                        LDKOutPoint update_failed_var = obj->update_failed;
                        int64_t update_failed_ref = 0;
-                       CHECK((((uintptr_t)update_failed_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&update_failed_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(update_failed_var);
-                       update_failed_ref = (uintptr_t)update_failed_var.inner & ~1;
+                       update_failed_ref = tag_ptr(update_failed_var.inner, false);
                        return (*env)->NewObject(env, LDKMonitorEvent_UpdateFailed_class, LDKMonitorEvent_UpdateFailed_meth, update_failed_ref);
                }
                default: abort();
@@ -3371,16 +3140,11 @@ static inline struct LDKOutPoint C3Tuple_OutPointCVec_MonitorEventZPublicKeyZ_ge
        return OutPoint_clone(&owner->a);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C3Tuple_1OutPointCVec_1MonitorEventZPublicKeyZ_1get_1a(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ* owner_conv = (LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ*)(owner & ~1);
+       LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ* owner_conv = (LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ*)untag_ptr(owner);
        LDKOutPoint ret_var = C3Tuple_OutPointCVec_MonitorEventZPublicKeyZ_get_a(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -3388,7 +3152,7 @@ static inline struct LDKCVec_MonitorEventZ C3Tuple_OutPointCVec_MonitorEventZPub
        return CVec_MonitorEventZ_clone(&owner->b);
 }
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_C3Tuple_1OutPointCVec_1MonitorEventZPublicKeyZ_1get_1b(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ* owner_conv = (LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ*)(owner & ~1);
+       LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ* owner_conv = (LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ*)untag_ptr(owner);
        LDKCVec_MonitorEventZ ret_var = C3Tuple_OutPointCVec_MonitorEventZPublicKeyZ_get_b(owner_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -3396,7 +3160,7 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_C3Tuple_1OutPointCVec_
        for (size_t o = 0; o < ret_var.datalen; o++) {
                LDKMonitorEvent *ret_conv_14_copy = MALLOC(sizeof(LDKMonitorEvent), "LDKMonitorEvent");
                *ret_conv_14_copy = ret_var.data[o];
-               int64_t ret_conv_14_ref = (uintptr_t)ret_conv_14_copy;
+               int64_t ret_conv_14_ref = tag_ptr(ret_conv_14_copy, true);
                ret_arr_ptr[o] = ret_conv_14_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
@@ -3408,7 +3172,7 @@ static inline struct LDKPublicKey C3Tuple_OutPointCVec_MonitorEventZPublicKeyZ_g
        return owner->c;
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_C3Tuple_1OutPointCVec_1MonitorEventZPublicKeyZ_1get_1c(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ* owner_conv = (LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ*)(owner & ~1);
+       LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ* owner_conv = (LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, C3Tuple_OutPointCVec_MonitorEventZPublicKeyZ_get_c(owner_conv).compressed_form);
        return ret_arr;
@@ -3438,13 +3202,13 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKCOption_1C2Tuple_1usiz
        CHECK(LDKCOption_C2Tuple_usizeTransactionZZ_None_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKCOption_1C2Tuple_1usizeTransactionZZ_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKCOption_C2Tuple_usizeTransactionZZ *obj = (LDKCOption_C2Tuple_usizeTransactionZZ*)(ptr & ~1);
+       LDKCOption_C2Tuple_usizeTransactionZZ *obj = (LDKCOption_C2Tuple_usizeTransactionZZ*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKCOption_C2Tuple_usizeTransactionZZ_Some: {
                        LDKC2Tuple_usizeTransactionZ* some_conv = MALLOC(sizeof(LDKC2Tuple_usizeTransactionZ), "LDKC2Tuple_usizeTransactionZ");
                        *some_conv = obj->some;
                        *some_conv = C2Tuple_usizeTransactionZ_clone(some_conv);
-                       return (*env)->NewObject(env, LDKCOption_C2Tuple_usizeTransactionZZ_Some_class, LDKCOption_C2Tuple_usizeTransactionZZ_Some_meth, ((int64_t)some_conv));
+                       return (*env)->NewObject(env, LDKCOption_C2Tuple_usizeTransactionZZ_Some_class, LDKCOption_C2Tuple_usizeTransactionZZ_Some_meth, tag_ptr(some_conv, true));
                }
                case LDKCOption_C2Tuple_usizeTransactionZZ_None: {
                        return (*env)->NewObject(env, LDKCOption_C2Tuple_usizeTransactionZZ_None_class, LDKCOption_C2Tuple_usizeTransactionZZ_None_meth);
@@ -3457,16 +3221,11 @@ CHECK(owner->result_ok);
        return FixedPenaltyScorer_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1FixedPenaltyScorerDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_FixedPenaltyScorerDecodeErrorZ* owner_conv = (LDKCResult_FixedPenaltyScorerDecodeErrorZ*)(owner & ~1);
+       LDKCResult_FixedPenaltyScorerDecodeErrorZ* owner_conv = (LDKCResult_FixedPenaltyScorerDecodeErrorZ*)untag_ptr(owner);
        LDKFixedPenaltyScorer ret_var = CResult_FixedPenaltyScorerDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -3475,16 +3234,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1FixedPenaltyScorerDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_FixedPenaltyScorerDecodeErrorZ* owner_conv = (LDKCResult_FixedPenaltyScorerDecodeErrorZ*)(owner & ~1);
+       LDKCResult_FixedPenaltyScorerDecodeErrorZ* owner_conv = (LDKCResult_FixedPenaltyScorerDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_FixedPenaltyScorerDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -3492,7 +3246,7 @@ static inline uint64_t C2Tuple_u64u64Z_get_a(LDKC2Tuple_u64u64Z *NONNULL_PTR own
        return owner->a;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u64u64Z_1get_1a(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_u64u64Z* owner_conv = (LDKC2Tuple_u64u64Z*)(owner & ~1);
+       LDKC2Tuple_u64u64Z* owner_conv = (LDKC2Tuple_u64u64Z*)untag_ptr(owner);
        int64_t ret_conv = C2Tuple_u64u64Z_get_a(owner_conv);
        return ret_conv;
 }
@@ -3501,7 +3255,7 @@ static inline uint64_t C2Tuple_u64u64Z_get_b(LDKC2Tuple_u64u64Z *NONNULL_PTR own
        return owner->b;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u64u64Z_1get_1b(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_u64u64Z* owner_conv = (LDKC2Tuple_u64u64Z*)(owner & ~1);
+       LDKC2Tuple_u64u64Z* owner_conv = (LDKC2Tuple_u64u64Z*)untag_ptr(owner);
        int64_t ret_conv = C2Tuple_u64u64Z_get_b(owner_conv);
        return ret_conv;
 }
@@ -3523,13 +3277,13 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKCOption_1C2Tuple_1u64u
        CHECK(LDKCOption_C2Tuple_u64u64ZZ_None_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKCOption_1C2Tuple_1u64u64ZZ_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKCOption_C2Tuple_u64u64ZZ *obj = (LDKCOption_C2Tuple_u64u64ZZ*)(ptr & ~1);
+       LDKCOption_C2Tuple_u64u64ZZ *obj = (LDKCOption_C2Tuple_u64u64ZZ*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKCOption_C2Tuple_u64u64ZZ_Some: {
                        LDKC2Tuple_u64u64Z* some_conv = MALLOC(sizeof(LDKC2Tuple_u64u64Z), "LDKC2Tuple_u64u64Z");
                        *some_conv = obj->some;
                        *some_conv = C2Tuple_u64u64Z_clone(some_conv);
-                       return (*env)->NewObject(env, LDKCOption_C2Tuple_u64u64ZZ_Some_class, LDKCOption_C2Tuple_u64u64ZZ_Some_meth, ((int64_t)some_conv));
+                       return (*env)->NewObject(env, LDKCOption_C2Tuple_u64u64ZZ_Some_class, LDKCOption_C2Tuple_u64u64ZZ_Some_meth, tag_ptr(some_conv, true));
                }
                case LDKCOption_C2Tuple_u64u64ZZ_None: {
                        return (*env)->NewObject(env, LDKCOption_C2Tuple_u64u64ZZ_None_class, LDKCOption_C2Tuple_u64u64ZZ_None_meth);
@@ -3579,13 +3333,8 @@ void log_LDKLogger_jcall(const void* this_arg, const LDKRecord * record) {
        LDKRecord record_var = *record;
        int64_t record_ref = 0;
        record_var = Record_clone(&record_var);
-       CHECK((((uintptr_t)record_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&record_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(record_var);
-       record_ref = (uintptr_t)record_var.inner;
-       if (record_var.is_owned) {
-               record_ref |= 1;
-       }
+       record_ref = tag_ptr(record_var.inner, record_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->log_meth, record_ref);
@@ -3621,20 +3370,18 @@ static inline LDKLogger LDKLogger_init (JNIEnv *env, jclass clz, jobject o) {
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKLogger_1new(JNIEnv *env, jclass clz, jobject o) {
        LDKLogger *res_ptr = MALLOC(sizeof(LDKLogger), "LDKLogger");
        *res_ptr = LDKLogger_init(env, clz, o);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 static inline struct LDKProbabilisticScorer *CResult_ProbabilisticScorerDecodeErrorZ_get_ok(LDKCResult_ProbabilisticScorerDecodeErrorZ *NONNULL_PTR owner){
 CHECK(owner->result_ok);
        return &*owner->contents.result;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ProbabilisticScorerDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ProbabilisticScorerDecodeErrorZ* owner_conv = (LDKCResult_ProbabilisticScorerDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ProbabilisticScorerDecodeErrorZ* owner_conv = (LDKCResult_ProbabilisticScorerDecodeErrorZ*)untag_ptr(owner);
        LDKProbabilisticScorer ret_var = *CResult_ProbabilisticScorerDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner & ~1;
+       ret_ref = tag_ptr(ret_var.inner, false);
        return ret_ref;
 }
 
@@ -3643,16 +3390,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ProbabilisticScorerDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ProbabilisticScorerDecodeErrorZ* owner_conv = (LDKCResult_ProbabilisticScorerDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ProbabilisticScorerDecodeErrorZ* owner_conv = (LDKCResult_ProbabilisticScorerDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_ProbabilisticScorerDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -3661,16 +3403,11 @@ CHECK(owner->result_ok);
        return InitFeatures_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InitFeaturesDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_InitFeaturesDecodeErrorZ* owner_conv = (LDKCResult_InitFeaturesDecodeErrorZ*)(owner & ~1);
+       LDKCResult_InitFeaturesDecodeErrorZ* owner_conv = (LDKCResult_InitFeaturesDecodeErrorZ*)untag_ptr(owner);
        LDKInitFeatures ret_var = CResult_InitFeaturesDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -3679,16 +3416,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InitFeaturesDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_InitFeaturesDecodeErrorZ* owner_conv = (LDKCResult_InitFeaturesDecodeErrorZ*)(owner & ~1);
+       LDKCResult_InitFeaturesDecodeErrorZ* owner_conv = (LDKCResult_InitFeaturesDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_InitFeaturesDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -3697,16 +3429,11 @@ CHECK(owner->result_ok);
        return ChannelFeatures_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelFeaturesDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelFeaturesDecodeErrorZ* owner_conv = (LDKCResult_ChannelFeaturesDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelFeaturesDecodeErrorZ* owner_conv = (LDKCResult_ChannelFeaturesDecodeErrorZ*)untag_ptr(owner);
        LDKChannelFeatures ret_var = CResult_ChannelFeaturesDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -3715,16 +3442,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelFeaturesDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelFeaturesDecodeErrorZ* owner_conv = (LDKCResult_ChannelFeaturesDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelFeaturesDecodeErrorZ* owner_conv = (LDKCResult_ChannelFeaturesDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_ChannelFeaturesDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -3733,16 +3455,11 @@ CHECK(owner->result_ok);
        return NodeFeatures_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeFeaturesDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NodeFeaturesDecodeErrorZ* owner_conv = (LDKCResult_NodeFeaturesDecodeErrorZ*)(owner & ~1);
+       LDKCResult_NodeFeaturesDecodeErrorZ* owner_conv = (LDKCResult_NodeFeaturesDecodeErrorZ*)untag_ptr(owner);
        LDKNodeFeatures ret_var = CResult_NodeFeaturesDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -3751,16 +3468,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeFeaturesDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NodeFeaturesDecodeErrorZ* owner_conv = (LDKCResult_NodeFeaturesDecodeErrorZ*)(owner & ~1);
+       LDKCResult_NodeFeaturesDecodeErrorZ* owner_conv = (LDKCResult_NodeFeaturesDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_NodeFeaturesDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -3769,16 +3481,11 @@ CHECK(owner->result_ok);
        return InvoiceFeatures_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceFeaturesDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_InvoiceFeaturesDecodeErrorZ* owner_conv = (LDKCResult_InvoiceFeaturesDecodeErrorZ*)(owner & ~1);
+       LDKCResult_InvoiceFeaturesDecodeErrorZ* owner_conv = (LDKCResult_InvoiceFeaturesDecodeErrorZ*)untag_ptr(owner);
        LDKInvoiceFeatures ret_var = CResult_InvoiceFeaturesDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -3787,16 +3494,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceFeaturesDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_InvoiceFeaturesDecodeErrorZ* owner_conv = (LDKCResult_InvoiceFeaturesDecodeErrorZ*)(owner & ~1);
+       LDKCResult_InvoiceFeaturesDecodeErrorZ* owner_conv = (LDKCResult_InvoiceFeaturesDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_InvoiceFeaturesDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -3805,16 +3507,11 @@ CHECK(owner->result_ok);
        return ChannelTypeFeatures_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelTypeFeaturesDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelTypeFeaturesDecodeErrorZ* owner_conv = (LDKCResult_ChannelTypeFeaturesDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelTypeFeaturesDecodeErrorZ* owner_conv = (LDKCResult_ChannelTypeFeaturesDecodeErrorZ*)untag_ptr(owner);
        LDKChannelTypeFeatures ret_var = CResult_ChannelTypeFeaturesDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -3823,16 +3520,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelTypeFeaturesDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelTypeFeaturesDecodeErrorZ* owner_conv = (LDKCResult_ChannelTypeFeaturesDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelTypeFeaturesDecodeErrorZ* owner_conv = (LDKCResult_ChannelTypeFeaturesDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_ChannelTypeFeaturesDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -3841,16 +3533,11 @@ CHECK(owner->result_ok);
        return NodeId_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeIdDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NodeIdDecodeErrorZ* owner_conv = (LDKCResult_NodeIdDecodeErrorZ*)(owner & ~1);
+       LDKCResult_NodeIdDecodeErrorZ* owner_conv = (LDKCResult_NodeIdDecodeErrorZ*)untag_ptr(owner);
        LDKNodeId ret_var = CResult_NodeIdDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -3859,16 +3546,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeIdDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NodeIdDecodeErrorZ* owner_conv = (LDKCResult_NodeIdDecodeErrorZ*)(owner & ~1);
+       LDKCResult_NodeIdDecodeErrorZ* owner_conv = (LDKCResult_NodeIdDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_NodeIdDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -3877,10 +3559,10 @@ CHECK(owner->result_ok);
        return COption_NetworkUpdateZ_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1NetworkUpdateZDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_COption_NetworkUpdateZDecodeErrorZ* owner_conv = (LDKCResult_COption_NetworkUpdateZDecodeErrorZ*)(owner & ~1);
+       LDKCResult_COption_NetworkUpdateZDecodeErrorZ* owner_conv = (LDKCResult_COption_NetworkUpdateZDecodeErrorZ*)untag_ptr(owner);
        LDKCOption_NetworkUpdateZ *ret_copy = MALLOC(sizeof(LDKCOption_NetworkUpdateZ), "LDKCOption_NetworkUpdateZ");
        *ret_copy = CResult_COption_NetworkUpdateZDecodeErrorZ_get_ok(owner_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -3889,16 +3571,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1NetworkUpdateZDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_COption_NetworkUpdateZDecodeErrorZ* owner_conv = (LDKCResult_COption_NetworkUpdateZDecodeErrorZ*)(owner & ~1);
+       LDKCResult_COption_NetworkUpdateZDecodeErrorZ* owner_conv = (LDKCResult_COption_NetworkUpdateZDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_COption_NetworkUpdateZDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -3944,10 +3621,10 @@ LDKCResult_TxOutAccessErrorZ get_utxo_LDKAccess_jcall(const void* this_arg, cons
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to get_utxo in LDKAccess from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_TxOutAccessErrorZ ret_conv = *(LDKCResult_TxOutAccessErrorZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -3977,11 +3654,11 @@ static inline LDKAccess LDKAccess_init (JNIEnv *env, jclass clz, jobject o) {
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKAccess_1new(JNIEnv *env, jclass clz, jobject o) {
        LDKAccess *res_ptr = MALLOC(sizeof(LDKAccess), "LDKAccess");
        *res_ptr = LDKAccess_init(env, clz, o);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Access_1get_1utxo(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray genesis_hash, int64_t short_channel_id) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKAccess* this_arg_conv = (LDKAccess*)this_arg_ptr;
        unsigned char genesis_hash_arr[32];
        CHECK((*env)->GetArrayLength(env, genesis_hash) == 32);
@@ -3989,7 +3666,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Access_1get_1utxo(JNIEnv *e
        unsigned char (*genesis_hash_ref)[32] = &genesis_hash_arr;
        LDKCResult_TxOutAccessErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxOutAccessErrorZ), "LDKCResult_TxOutAccessErrorZ");
        *ret_conv = (this_arg_conv->get_utxo)(this_arg_conv->this_arg, genesis_hash_ref, short_channel_id);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 static jclass LDKCOption_AccessZ_Some_class = NULL;
@@ -4009,7 +3686,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKCOption_1AccessZ_init
        CHECK(LDKCOption_AccessZ_None_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKCOption_1AccessZ_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKCOption_AccessZ *obj = (LDKCOption_AccessZ*)(ptr & ~1);
+       LDKCOption_AccessZ *obj = (LDKCOption_AccessZ*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKCOption_AccessZ_Some: {
                        LDKAccess* some_ret = MALLOC(sizeof(LDKAccess), "LDKAccess");
@@ -4019,7 +3696,7 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKCOption_1AccessZ_1ref_1f
                                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                                LDKAccess_JCalls_cloned(&(*some_ret));
                        }
-                       return (*env)->NewObject(env, LDKCOption_AccessZ_Some_class, LDKCOption_AccessZ_Some_meth, (int64_t)some_ret);
+                       return (*env)->NewObject(env, LDKCOption_AccessZ_Some_class, LDKCOption_AccessZ_Some_meth, tag_ptr(some_ret, true));
                }
                case LDKCOption_AccessZ_None: {
                        return (*env)->NewObject(env, LDKCOption_AccessZ_None_class, LDKCOption_AccessZ_None_meth);
@@ -4032,7 +3709,7 @@ CHECK(owner->result_ok);
        return *owner->contents.result;
 }
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1boolLightningErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_boolLightningErrorZ* owner_conv = (LDKCResult_boolLightningErrorZ*)(owner & ~1);
+       LDKCResult_boolLightningErrorZ* owner_conv = (LDKCResult_boolLightningErrorZ*)untag_ptr(owner);
        jboolean ret_conv = CResult_boolLightningErrorZ_get_ok(owner_conv);
        return ret_conv;
 }
@@ -4042,16 +3719,11 @@ CHECK(!owner->result_ok);
        return LightningError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1boolLightningErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_boolLightningErrorZ* owner_conv = (LDKCResult_boolLightningErrorZ*)(owner & ~1);
+       LDKCResult_boolLightningErrorZ* owner_conv = (LDKCResult_boolLightningErrorZ*)untag_ptr(owner);
        LDKLightningError ret_var = CResult_boolLightningErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -4059,16 +3731,11 @@ static inline struct LDKChannelAnnouncement C3Tuple_ChannelAnnouncementChannelUp
        return ChannelAnnouncement_clone(&owner->a);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C3Tuple_1ChannelAnnouncementChannelUpdateChannelUpdateZ_1get_1a(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ* owner_conv = (LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(owner & ~1);
+       LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ* owner_conv = (LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)untag_ptr(owner);
        LDKChannelAnnouncement ret_var = C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_get_a(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -4076,16 +3743,11 @@ static inline struct LDKChannelUpdate C3Tuple_ChannelAnnouncementChannelUpdateCh
        return ChannelUpdate_clone(&owner->b);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C3Tuple_1ChannelAnnouncementChannelUpdateChannelUpdateZ_1get_1b(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ* owner_conv = (LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(owner & ~1);
+       LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ* owner_conv = (LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)untag_ptr(owner);
        LDKChannelUpdate ret_var = C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_get_b(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -4093,16 +3755,11 @@ static inline struct LDKChannelUpdate C3Tuple_ChannelAnnouncementChannelUpdateCh
        return ChannelUpdate_clone(&owner->c);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C3Tuple_1ChannelAnnouncementChannelUpdateChannelUpdateZ_1get_1c(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ* owner_conv = (LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(owner & ~1);
+       LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ* owner_conv = (LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)untag_ptr(owner);
        LDKChannelUpdate ret_var = C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_get_c(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -4125,7 +3782,7 @@ CHECK(owner->result_ok);
        return *owner->contents.result;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NoneLightningErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NoneLightningErrorZ* owner_conv = (LDKCResult_NoneLightningErrorZ*)(owner & ~1);
+       LDKCResult_NoneLightningErrorZ* owner_conv = (LDKCResult_NoneLightningErrorZ*)untag_ptr(owner);
        CResult_NoneLightningErrorZ_get_ok(owner_conv);
 }
 
@@ -4134,16 +3791,11 @@ CHECK(!owner->result_ok);
        return LightningError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneLightningErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NoneLightningErrorZ* owner_conv = (LDKCResult_NoneLightningErrorZ*)(owner & ~1);
+       LDKCResult_NoneLightningErrorZ* owner_conv = (LDKCResult_NoneLightningErrorZ*)untag_ptr(owner);
        LDKLightningError ret_var = CResult_NoneLightningErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -4152,16 +3804,11 @@ CHECK(owner->result_ok);
        return ChannelUpdateInfo_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelUpdateInfoDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelUpdateInfoDecodeErrorZ* owner_conv = (LDKCResult_ChannelUpdateInfoDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelUpdateInfoDecodeErrorZ* owner_conv = (LDKCResult_ChannelUpdateInfoDecodeErrorZ*)untag_ptr(owner);
        LDKChannelUpdateInfo ret_var = CResult_ChannelUpdateInfoDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -4170,16 +3817,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelUpdateInfoDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelUpdateInfoDecodeErrorZ* owner_conv = (LDKCResult_ChannelUpdateInfoDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelUpdateInfoDecodeErrorZ* owner_conv = (LDKCResult_ChannelUpdateInfoDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_ChannelUpdateInfoDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -4188,16 +3830,11 @@ CHECK(owner->result_ok);
        return ChannelInfo_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelInfoDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelInfoDecodeErrorZ* owner_conv = (LDKCResult_ChannelInfoDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelInfoDecodeErrorZ* owner_conv = (LDKCResult_ChannelInfoDecodeErrorZ*)untag_ptr(owner);
        LDKChannelInfo ret_var = CResult_ChannelInfoDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -4206,16 +3843,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelInfoDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelInfoDecodeErrorZ* owner_conv = (LDKCResult_ChannelInfoDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelInfoDecodeErrorZ* owner_conv = (LDKCResult_ChannelInfoDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_ChannelInfoDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -4224,16 +3856,11 @@ CHECK(owner->result_ok);
        return RoutingFees_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RoutingFeesDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_RoutingFeesDecodeErrorZ* owner_conv = (LDKCResult_RoutingFeesDecodeErrorZ*)(owner & ~1);
+       LDKCResult_RoutingFeesDecodeErrorZ* owner_conv = (LDKCResult_RoutingFeesDecodeErrorZ*)untag_ptr(owner);
        LDKRoutingFees ret_var = CResult_RoutingFeesDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -4242,16 +3869,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RoutingFeesDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_RoutingFeesDecodeErrorZ* owner_conv = (LDKCResult_RoutingFeesDecodeErrorZ*)(owner & ~1);
+       LDKCResult_RoutingFeesDecodeErrorZ* owner_conv = (LDKCResult_RoutingFeesDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_RoutingFeesDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -4293,7 +3915,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKNetAddress_init (JNIEn
        CHECK(LDKNetAddress_Hostname_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKNetAddress_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKNetAddress *obj = (LDKNetAddress*)(ptr & ~1);
+       LDKNetAddress *obj = (LDKNetAddress*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKNetAddress_IPv4: {
                        int8_tArray addr_arr = (*env)->NewByteArray(env, 4);
@@ -4323,10 +3945,8 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKNetAddress_1ref_1from_1p
                case LDKNetAddress_Hostname: {
                        LDKHostname hostname_var = obj->hostname.hostname;
                        int64_t hostname_ref = 0;
-                       CHECK((((uintptr_t)hostname_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&hostname_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(hostname_var);
-                       hostname_ref = (uintptr_t)hostname_var.inner & ~1;
+                       hostname_ref = tag_ptr(hostname_var.inner, false);
                        int16_t port_conv = obj->hostname.port;
                        return (*env)->NewObject(env, LDKNetAddress_Hostname_class, LDKNetAddress_Hostname_meth, hostname_ref, port_conv);
                }
@@ -4345,16 +3965,11 @@ CHECK(owner->result_ok);
        return NodeAnnouncementInfo_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAnnouncementInfoDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NodeAnnouncementInfoDecodeErrorZ* owner_conv = (LDKCResult_NodeAnnouncementInfoDecodeErrorZ*)(owner & ~1);
+       LDKCResult_NodeAnnouncementInfoDecodeErrorZ* owner_conv = (LDKCResult_NodeAnnouncementInfoDecodeErrorZ*)untag_ptr(owner);
        LDKNodeAnnouncementInfo ret_var = CResult_NodeAnnouncementInfoDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -4363,16 +3978,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAnnouncementInfoDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NodeAnnouncementInfoDecodeErrorZ* owner_conv = (LDKCResult_NodeAnnouncementInfoDecodeErrorZ*)(owner & ~1);
+       LDKCResult_NodeAnnouncementInfoDecodeErrorZ* owner_conv = (LDKCResult_NodeAnnouncementInfoDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_NodeAnnouncementInfoDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -4381,16 +3991,11 @@ CHECK(owner->result_ok);
        return NodeAlias_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAliasDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NodeAliasDecodeErrorZ* owner_conv = (LDKCResult_NodeAliasDecodeErrorZ*)(owner & ~1);
+       LDKCResult_NodeAliasDecodeErrorZ* owner_conv = (LDKCResult_NodeAliasDecodeErrorZ*)untag_ptr(owner);
        LDKNodeAlias ret_var = CResult_NodeAliasDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -4399,16 +4004,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAliasDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NodeAliasDecodeErrorZ* owner_conv = (LDKCResult_NodeAliasDecodeErrorZ*)(owner & ~1);
+       LDKCResult_NodeAliasDecodeErrorZ* owner_conv = (LDKCResult_NodeAliasDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_NodeAliasDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -4417,16 +4017,11 @@ CHECK(owner->result_ok);
        return NodeInfo_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeInfoDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NodeInfoDecodeErrorZ* owner_conv = (LDKCResult_NodeInfoDecodeErrorZ*)(owner & ~1);
+       LDKCResult_NodeInfoDecodeErrorZ* owner_conv = (LDKCResult_NodeInfoDecodeErrorZ*)untag_ptr(owner);
        LDKNodeInfo ret_var = CResult_NodeInfoDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -4435,16 +4030,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeInfoDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NodeInfoDecodeErrorZ* owner_conv = (LDKCResult_NodeInfoDecodeErrorZ*)(owner & ~1);
+       LDKCResult_NodeInfoDecodeErrorZ* owner_conv = (LDKCResult_NodeInfoDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_NodeInfoDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -4453,13 +4043,11 @@ CHECK(owner->result_ok);
        return &*owner->contents.result;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NetworkGraphDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NetworkGraphDecodeErrorZ* owner_conv = (LDKCResult_NetworkGraphDecodeErrorZ*)(owner & ~1);
+       LDKCResult_NetworkGraphDecodeErrorZ* owner_conv = (LDKCResult_NetworkGraphDecodeErrorZ*)untag_ptr(owner);
        LDKNetworkGraph ret_var = *CResult_NetworkGraphDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner & ~1;
+       ret_ref = tag_ptr(ret_var.inner, false);
        return ret_ref;
 }
 
@@ -4468,16 +4056,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NetworkGraphDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NetworkGraphDecodeErrorZ* owner_conv = (LDKCResult_NetworkGraphDecodeErrorZ*)(owner & ~1);
+       LDKCResult_NetworkGraphDecodeErrorZ* owner_conv = (LDKCResult_NetworkGraphDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_NetworkGraphDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -4498,7 +4081,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKCOption_1CVec_1NetAddr
        CHECK(LDKCOption_CVec_NetAddressZZ_None_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKCOption_1CVec_1NetAddressZZ_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKCOption_CVec_NetAddressZZ *obj = (LDKCOption_CVec_NetAddressZZ*)(ptr & ~1);
+       LDKCOption_CVec_NetAddressZZ *obj = (LDKCOption_CVec_NetAddressZZ*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKCOption_CVec_NetAddressZZ_Some: {
                        LDKCVec_NetAddressZ some_var = obj->some;
@@ -4506,7 +4089,7 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKCOption_1CVec_1NetAddres
                        some_arr = (*env)->NewLongArray(env, some_var.datalen);
                        int64_t *some_arr_ptr = (*env)->GetPrimitiveArrayCritical(env, some_arr, NULL);
                        for (size_t m = 0; m < some_var.datalen; m++) {
-                               int64_t some_conv_12_ref = ((uintptr_t)&some_var.data[m]) | 1;
+                               int64_t some_conv_12_ref = tag_ptr(&some_var.data[m], false);
                                some_arr_ptr[m] = some_conv_12_ref;
                        }
                        (*env)->ReleasePrimitiveArrayCritical(env, some_arr, some_arr_ptr, 0);
@@ -4523,16 +4106,11 @@ CHECK(owner->result_ok);
        return DelayedPaymentOutputDescriptor_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1DelayedPaymentOutputDescriptorDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ* owner_conv = (LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ*)(owner & ~1);
+       LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ* owner_conv = (LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ*)untag_ptr(owner);
        LDKDelayedPaymentOutputDescriptor ret_var = CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -4541,16 +4119,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1DelayedPaymentOutputDescriptorDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ* owner_conv = (LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ*)(owner & ~1);
+       LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ* owner_conv = (LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -4559,16 +4132,11 @@ CHECK(owner->result_ok);
        return StaticPaymentOutputDescriptor_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1StaticPaymentOutputDescriptorDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ* owner_conv = (LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ*)(owner & ~1);
+       LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ* owner_conv = (LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ*)untag_ptr(owner);
        LDKStaticPaymentOutputDescriptor ret_var = CResult_StaticPaymentOutputDescriptorDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -4577,16 +4145,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1StaticPaymentOutputDescriptorDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ* owner_conv = (LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ*)(owner & ~1);
+       LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ* owner_conv = (LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_StaticPaymentOutputDescriptorDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -4595,10 +4158,10 @@ CHECK(owner->result_ok);
        return SpendableOutputDescriptor_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SpendableOutputDescriptorDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_SpendableOutputDescriptorDecodeErrorZ* owner_conv = (LDKCResult_SpendableOutputDescriptorDecodeErrorZ*)(owner & ~1);
+       LDKCResult_SpendableOutputDescriptorDecodeErrorZ* owner_conv = (LDKCResult_SpendableOutputDescriptorDecodeErrorZ*)untag_ptr(owner);
        LDKSpendableOutputDescriptor *ret_copy = MALLOC(sizeof(LDKSpendableOutputDescriptor), "LDKSpendableOutputDescriptor");
        *ret_copy = CResult_SpendableOutputDescriptorDecodeErrorZ_get_ok(owner_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -4607,16 +4170,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SpendableOutputDescriptorDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_SpendableOutputDescriptorDecodeErrorZ* owner_conv = (LDKCResult_SpendableOutputDescriptorDecodeErrorZ*)(owner & ~1);
+       LDKCResult_SpendableOutputDescriptorDecodeErrorZ* owner_conv = (LDKCResult_SpendableOutputDescriptorDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_SpendableOutputDescriptorDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -4631,7 +4189,7 @@ static inline struct LDKSignature C2Tuple_SignatureCVec_SignatureZZ_get_a(LDKC2T
        return owner->a;
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_C2Tuple_1SignatureCVec_1SignatureZZ_1get_1a(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_SignatureCVec_SignatureZZ* owner_conv = (LDKC2Tuple_SignatureCVec_SignatureZZ*)(owner & ~1);
+       LDKC2Tuple_SignatureCVec_SignatureZZ* owner_conv = (LDKC2Tuple_SignatureCVec_SignatureZZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 64);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 64, C2Tuple_SignatureCVec_SignatureZZ_get_a(owner_conv).compact_form);
        return ret_arr;
@@ -4641,7 +4199,7 @@ static inline struct LDKCVec_SignatureZ C2Tuple_SignatureCVec_SignatureZZ_get_b(
        return owner->b;
 }
 JNIEXPORT jobjectArray JNICALL Java_org_ldk_impl_bindings_C2Tuple_1SignatureCVec_1SignatureZZ_1get_1b(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_SignatureCVec_SignatureZZ* owner_conv = (LDKC2Tuple_SignatureCVec_SignatureZZ*)(owner & ~1);
+       LDKC2Tuple_SignatureCVec_SignatureZZ* owner_conv = (LDKC2Tuple_SignatureCVec_SignatureZZ*)untag_ptr(owner);
        LDKCVec_SignatureZ ret_var = C2Tuple_SignatureCVec_SignatureZZ_get_b(owner_conv);
        jobjectArray ret_arr = NULL;
        ret_arr = (*env)->NewObjectArray(env, ret_var.datalen, arr_of_B_clz, NULL);
@@ -4660,10 +4218,10 @@ CHECK(owner->result_ok);
        return C2Tuple_SignatureCVec_SignatureZZ_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1SignatureCVec_1SignatureZZNoneZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* owner_conv = (LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(owner & ~1);
+       LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* owner_conv = (LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)untag_ptr(owner);
        LDKC2Tuple_SignatureCVec_SignatureZZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_SignatureCVec_SignatureZZ), "LDKC2Tuple_SignatureCVec_SignatureZZ");
        *ret_conv = CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_get_ok(owner_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 static inline void CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_get_err(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ *NONNULL_PTR owner){
@@ -4671,7 +4229,7 @@ CHECK(!owner->result_ok);
        return *owner->contents.err;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1SignatureCVec_1SignatureZZNoneZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* owner_conv = (LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(owner & ~1);
+       LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* owner_conv = (LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)untag_ptr(owner);
        CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_get_err(owner_conv);
 }
 
@@ -4680,7 +4238,7 @@ CHECK(owner->result_ok);
        return *owner->contents.result;
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_CResult_1SignatureNoneZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_SignatureNoneZ* owner_conv = (LDKCResult_SignatureNoneZ*)(owner & ~1);
+       LDKCResult_SignatureNoneZ* owner_conv = (LDKCResult_SignatureNoneZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 64);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 64, CResult_SignatureNoneZ_get_ok(owner_conv).compact_form);
        return ret_arr;
@@ -4691,7 +4249,7 @@ CHECK(!owner->result_ok);
        return *owner->contents.err;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1SignatureNoneZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_SignatureNoneZ* owner_conv = (LDKCResult_SignatureNoneZ*)(owner & ~1);
+       LDKCResult_SignatureNoneZ* owner_conv = (LDKCResult_SignatureNoneZ*)untag_ptr(owner);
        CResult_SignatureNoneZ_get_err(owner_conv);
 }
 
@@ -4699,7 +4257,7 @@ static inline struct LDKSignature C2Tuple_SignatureSignatureZ_get_a(LDKC2Tuple_S
        return owner->a;
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_C2Tuple_1SignatureSignatureZ_1get_1a(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_SignatureSignatureZ* owner_conv = (LDKC2Tuple_SignatureSignatureZ*)(owner & ~1);
+       LDKC2Tuple_SignatureSignatureZ* owner_conv = (LDKC2Tuple_SignatureSignatureZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 64);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 64, C2Tuple_SignatureSignatureZ_get_a(owner_conv).compact_form);
        return ret_arr;
@@ -4709,7 +4267,7 @@ static inline struct LDKSignature C2Tuple_SignatureSignatureZ_get_b(LDKC2Tuple_S
        return owner->b;
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_C2Tuple_1SignatureSignatureZ_1get_1b(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_SignatureSignatureZ* owner_conv = (LDKC2Tuple_SignatureSignatureZ*)(owner & ~1);
+       LDKC2Tuple_SignatureSignatureZ* owner_conv = (LDKC2Tuple_SignatureSignatureZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 64);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 64, C2Tuple_SignatureSignatureZ_get_b(owner_conv).compact_form);
        return ret_arr;
@@ -4720,10 +4278,10 @@ CHECK(owner->result_ok);
        return C2Tuple_SignatureSignatureZ_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1SignatureSignatureZNoneZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_C2Tuple_SignatureSignatureZNoneZ* owner_conv = (LDKCResult_C2Tuple_SignatureSignatureZNoneZ*)(owner & ~1);
+       LDKCResult_C2Tuple_SignatureSignatureZNoneZ* owner_conv = (LDKCResult_C2Tuple_SignatureSignatureZNoneZ*)untag_ptr(owner);
        LDKC2Tuple_SignatureSignatureZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_SignatureSignatureZ), "LDKC2Tuple_SignatureSignatureZ");
        *ret_conv = CResult_C2Tuple_SignatureSignatureZNoneZ_get_ok(owner_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 static inline void CResult_C2Tuple_SignatureSignatureZNoneZ_get_err(LDKCResult_C2Tuple_SignatureSignatureZNoneZ *NONNULL_PTR owner){
@@ -4731,7 +4289,7 @@ CHECK(!owner->result_ok);
        return *owner->contents.err;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1SignatureSignatureZNoneZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_C2Tuple_SignatureSignatureZNoneZ* owner_conv = (LDKCResult_C2Tuple_SignatureSignatureZNoneZ*)(owner & ~1);
+       LDKCResult_C2Tuple_SignatureSignatureZNoneZ* owner_conv = (LDKCResult_C2Tuple_SignatureSignatureZNoneZ*)untag_ptr(owner);
        CResult_C2Tuple_SignatureSignatureZNoneZ_get_err(owner_conv);
 }
 
@@ -4740,7 +4298,7 @@ CHECK(owner->result_ok);
        return *owner->contents.result;
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_CResult_1SecretKeyNoneZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_SecretKeyNoneZ* owner_conv = (LDKCResult_SecretKeyNoneZ*)(owner & ~1);
+       LDKCResult_SecretKeyNoneZ* owner_conv = (LDKCResult_SecretKeyNoneZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, CResult_SecretKeyNoneZ_get_ok(owner_conv).bytes);
        return ret_arr;
@@ -4751,7 +4309,7 @@ CHECK(!owner->result_ok);
        return *owner->contents.err;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1SecretKeyNoneZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_SecretKeyNoneZ* owner_conv = (LDKCResult_SecretKeyNoneZ*)(owner & ~1);
+       LDKCResult_SecretKeyNoneZ* owner_conv = (LDKCResult_SecretKeyNoneZ*)untag_ptr(owner);
        CResult_SecretKeyNoneZ_get_err(owner_conv);
 }
 
@@ -4852,13 +4410,8 @@ LDKCResult_NoneNoneZ validate_holder_commitment_LDKBaseSign_jcall(const void* th
        LDKHolderCommitmentTransaction holder_tx_var = *holder_tx;
        int64_t holder_tx_ref = 0;
        holder_tx_var = HolderCommitmentTransaction_clone(&holder_tx_var);
-       CHECK((((uintptr_t)holder_tx_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&holder_tx_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(holder_tx_var);
-       holder_tx_ref = (uintptr_t)holder_tx_var.inner;
-       if (holder_tx_var.is_owned) {
-               holder_tx_ref |= 1;
-       }
+       holder_tx_ref = tag_ptr(holder_tx_var.inner, holder_tx_var.is_owned);
        LDKCVec_PaymentPreimageZ preimages_var = preimages;
        jobjectArray preimages_arr = NULL;
        preimages_arr = (*env)->NewObjectArray(env, preimages_var.datalen, arr_of_B_clz, NULL);
@@ -4877,10 +4430,10 @@ LDKCResult_NoneNoneZ validate_holder_commitment_LDKBaseSign_jcall(const void* th
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to validate_holder_commitment in LDKBaseSign from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneNoneZ ret_conv = *(LDKCResult_NoneNoneZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -4922,13 +4475,8 @@ LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ sign_counterparty_commitment_L
        LDKCommitmentTransaction commitment_tx_var = *commitment_tx;
        int64_t commitment_tx_ref = 0;
        commitment_tx_var = CommitmentTransaction_clone(&commitment_tx_var);
-       CHECK((((uintptr_t)commitment_tx_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&commitment_tx_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(commitment_tx_var);
-       commitment_tx_ref = (uintptr_t)commitment_tx_var.inner;
-       if (commitment_tx_var.is_owned) {
-               commitment_tx_ref |= 1;
-       }
+       commitment_tx_ref = tag_ptr(commitment_tx_var.inner, commitment_tx_var.is_owned);
        LDKCVec_PaymentPreimageZ preimages_var = preimages;
        jobjectArray preimages_arr = NULL;
        preimages_arr = (*env)->NewObjectArray(env, preimages_var.datalen, arr_of_B_clz, NULL);
@@ -4947,10 +4495,10 @@ LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ sign_counterparty_commitment_L
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to sign_counterparty_commitment in LDKBaseSign from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ ret_conv = *(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -4975,10 +4523,10 @@ LDKCResult_NoneNoneZ validate_counterparty_revocation_LDKBaseSign_jcall(const vo
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to validate_counterparty_revocation in LDKBaseSign from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneNoneZ ret_conv = *(LDKCResult_NoneNoneZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -4996,13 +4544,8 @@ LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ sign_holder_commitment_and_htl
        LDKHolderCommitmentTransaction commitment_tx_var = *commitment_tx;
        int64_t commitment_tx_ref = 0;
        commitment_tx_var = HolderCommitmentTransaction_clone(&commitment_tx_var);
-       CHECK((((uintptr_t)commitment_tx_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&commitment_tx_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(commitment_tx_var);
-       commitment_tx_ref = (uintptr_t)commitment_tx_var.inner;
-       if (commitment_tx_var.is_owned) {
-               commitment_tx_ref |= 1;
-       }
+       commitment_tx_ref = tag_ptr(commitment_tx_var.inner, commitment_tx_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        uint64_t ret = (*env)->CallLongMethod(env, obj, j_calls->sign_holder_commitment_and_htlcs_meth, commitment_tx_ref);
@@ -5010,10 +4553,10 @@ LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ sign_holder_commitment_and_htl
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to sign_holder_commitment_and_htlcs in LDKBaseSign from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ ret_conv = *(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -5043,10 +4586,10 @@ LDKCResult_SignatureNoneZ sign_justice_revoked_output_LDKBaseSign_jcall(const vo
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to sign_justice_revoked_output in LDKBaseSign from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_SignatureNoneZ ret_conv = *(LDKCResult_SignatureNoneZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -5072,13 +4615,8 @@ LDKCResult_SignatureNoneZ sign_justice_revoked_htlc_LDKBaseSign_jcall(const void
        LDKHTLCOutputInCommitment htlc_var = *htlc;
        int64_t htlc_ref = 0;
        htlc_var = HTLCOutputInCommitment_clone(&htlc_var);
-       CHECK((((uintptr_t)htlc_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&htlc_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(htlc_var);
-       htlc_ref = (uintptr_t)htlc_var.inner;
-       if (htlc_var.is_owned) {
-               htlc_ref |= 1;
-       }
+       htlc_ref = tag_ptr(htlc_var.inner, htlc_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        uint64_t ret = (*env)->CallLongMethod(env, obj, j_calls->sign_justice_revoked_htlc_meth, justice_tx_arr, input_conv, amount_conv, per_commitment_key_arr, htlc_ref);
@@ -5086,10 +4624,10 @@ LDKCResult_SignatureNoneZ sign_justice_revoked_htlc_LDKBaseSign_jcall(const void
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to sign_justice_revoked_htlc in LDKBaseSign from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_SignatureNoneZ ret_conv = *(LDKCResult_SignatureNoneZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -5115,13 +4653,8 @@ LDKCResult_SignatureNoneZ sign_counterparty_htlc_transaction_LDKBaseSign_jcall(c
        LDKHTLCOutputInCommitment htlc_var = *htlc;
        int64_t htlc_ref = 0;
        htlc_var = HTLCOutputInCommitment_clone(&htlc_var);
-       CHECK((((uintptr_t)htlc_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&htlc_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(htlc_var);
-       htlc_ref = (uintptr_t)htlc_var.inner;
-       if (htlc_var.is_owned) {
-               htlc_ref |= 1;
-       }
+       htlc_ref = tag_ptr(htlc_var.inner, htlc_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        uint64_t ret = (*env)->CallLongMethod(env, obj, j_calls->sign_counterparty_htlc_transaction_meth, htlc_tx_arr, input_conv, amount_conv, per_commitment_point_arr, htlc_ref);
@@ -5129,10 +4662,10 @@ LDKCResult_SignatureNoneZ sign_counterparty_htlc_transaction_LDKBaseSign_jcall(c
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to sign_counterparty_htlc_transaction in LDKBaseSign from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_SignatureNoneZ ret_conv = *(LDKCResult_SignatureNoneZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -5150,13 +4683,8 @@ LDKCResult_SignatureNoneZ sign_closing_transaction_LDKBaseSign_jcall(const void*
        LDKClosingTransaction closing_tx_var = *closing_tx;
        int64_t closing_tx_ref = 0;
        closing_tx_var = ClosingTransaction_clone(&closing_tx_var);
-       CHECK((((uintptr_t)closing_tx_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&closing_tx_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(closing_tx_var);
-       closing_tx_ref = (uintptr_t)closing_tx_var.inner;
-       if (closing_tx_var.is_owned) {
-               closing_tx_ref |= 1;
-       }
+       closing_tx_ref = tag_ptr(closing_tx_var.inner, closing_tx_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        uint64_t ret = (*env)->CallLongMethod(env, obj, j_calls->sign_closing_transaction_meth, closing_tx_ref);
@@ -5164,10 +4692,10 @@ LDKCResult_SignatureNoneZ sign_closing_transaction_LDKBaseSign_jcall(const void*
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to sign_closing_transaction in LDKBaseSign from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_SignatureNoneZ ret_conv = *(LDKCResult_SignatureNoneZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -5185,13 +4713,8 @@ LDKCResult_C2Tuple_SignatureSignatureZNoneZ sign_channel_announcement_LDKBaseSig
        LDKUnsignedChannelAnnouncement msg_var = *msg;
        int64_t msg_ref = 0;
        msg_var = UnsignedChannelAnnouncement_clone(&msg_var);
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        uint64_t ret = (*env)->CallLongMethod(env, obj, j_calls->sign_channel_announcement_meth, msg_ref);
@@ -5199,10 +4722,10 @@ LDKCResult_C2Tuple_SignatureSignatureZNoneZ sign_channel_announcement_LDKBaseSig
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to sign_channel_announcement in LDKBaseSign from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_C2Tuple_SignatureSignatureZNoneZ ret_conv = *(LDKCResult_C2Tuple_SignatureSignatureZNoneZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -5220,13 +4743,8 @@ void ready_channel_LDKBaseSign_jcall(void* this_arg, const LDKChannelTransaction
        LDKChannelTransactionParameters channel_parameters_var = *channel_parameters;
        int64_t channel_parameters_ref = 0;
        channel_parameters_var = ChannelTransactionParameters_clone(&channel_parameters_var);
-       CHECK((((uintptr_t)channel_parameters_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&channel_parameters_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_parameters_var);
-       channel_parameters_ref = (uintptr_t)channel_parameters_var.inner;
-       if (channel_parameters_var.is_owned) {
-               channel_parameters_ref |= 1;
-       }
+       channel_parameters_ref = tag_ptr(channel_parameters_var.inner, channel_parameters_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->ready_channel_meth, channel_parameters_ref);
@@ -5273,8 +4791,8 @@ static inline LDKBaseSign LDKBaseSign_init (JNIEnv *env, jclass clz, jobject o,
        CHECK(calls->ready_channel_meth != NULL);
 
        LDKChannelPublicKeys pubkeys_conv;
-       pubkeys_conv.inner = (void*)(pubkeys & (~1));
-       pubkeys_conv.is_owned = (pubkeys & 1) || (pubkeys == 0);
+       pubkeys_conv.inner = untag_ptr(pubkeys);
+       pubkeys_conv.is_owned = ptr_is_owned(pubkeys);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(pubkeys_conv);
 
        LDKBaseSign ret = {
@@ -5301,11 +4819,11 @@ static inline LDKBaseSign LDKBaseSign_init (JNIEnv *env, jclass clz, jobject o,
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKBaseSign_1new(JNIEnv *env, jclass clz, jobject o, int64_t pubkeys) {
        LDKBaseSign *res_ptr = MALLOC(sizeof(LDKBaseSign), "LDKBaseSign");
        *res_ptr = LDKBaseSign_init(env, clz, o, pubkeys);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_BaseSign_1get_1per_1commitment_1point(JNIEnv *env, jclass clz, int64_t this_arg, int64_t idx) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, (this_arg_conv->get_per_commitment_point)(this_arg_conv->this_arg, idx).compressed_form);
@@ -5313,8 +4831,8 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_BaseSign_1get_1per_1com
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_BaseSign_1release_1commitment_1secret(JNIEnv *env, jclass clz, int64_t this_arg, int64_t idx) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, (this_arg_conv->release_commitment_secret)(this_arg_conv->this_arg, idx).data);
@@ -5322,13 +4840,14 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_BaseSign_1release_1comm
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1validate_1holder_1commitment(JNIEnv *env, jclass clz, int64_t this_arg, int64_t holder_tx, jobjectArray preimages) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        LDKHolderCommitmentTransaction holder_tx_conv;
-       holder_tx_conv.inner = (void*)(holder_tx & (~1));
-       holder_tx_conv.is_owned = false;
+       holder_tx_conv.inner = untag_ptr(holder_tx);
+       holder_tx_conv.is_owned = ptr_is_owned(holder_tx);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(holder_tx_conv);
+       holder_tx_conv.is_owned = false;
        LDKCVec_PaymentPreimageZ preimages_constr;
        preimages_constr.datalen = (*env)->GetArrayLength(env, preimages);
        if (preimages_constr.datalen > 0)
@@ -5344,12 +4863,12 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1validate_1holder_
        }
        LDKCResult_NoneNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneNoneZ), "LDKCResult_NoneNoneZ");
        *ret_conv = (this_arg_conv->validate_holder_commitment)(this_arg_conv->this_arg, &holder_tx_conv, preimages_constr);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_BaseSign_1channel_1keys_1id(JNIEnv *env, jclass clz, int64_t this_arg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, (this_arg_conv->channel_keys_id)(this_arg_conv->this_arg).data);
@@ -5357,13 +4876,14 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_BaseSign_1channel_1keys
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1sign_1counterparty_1commitment(JNIEnv *env, jclass clz, int64_t this_arg, int64_t commitment_tx, jobjectArray preimages) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        LDKCommitmentTransaction commitment_tx_conv;
-       commitment_tx_conv.inner = (void*)(commitment_tx & (~1));
-       commitment_tx_conv.is_owned = false;
+       commitment_tx_conv.inner = untag_ptr(commitment_tx);
+       commitment_tx_conv.is_owned = ptr_is_owned(commitment_tx);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(commitment_tx_conv);
+       commitment_tx_conv.is_owned = false;
        LDKCVec_PaymentPreimageZ preimages_constr;
        preimages_constr.datalen = (*env)->GetArrayLength(env, preimages);
        if (preimages_constr.datalen > 0)
@@ -5379,12 +4899,12 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1sign_1counterpart
        }
        LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ), "LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ");
        *ret_conv = (this_arg_conv->sign_counterparty_commitment)(this_arg_conv->this_arg, &commitment_tx_conv, preimages_constr);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1validate_1counterparty_1revocation(JNIEnv *env, jclass clz, int64_t this_arg, int64_t idx, int8_tArray secret) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        unsigned char secret_arr[32];
        CHECK((*env)->GetArrayLength(env, secret) == 32);
@@ -5392,25 +4912,26 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1validate_1counter
        unsigned char (*secret_ref)[32] = &secret_arr;
        LDKCResult_NoneNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneNoneZ), "LDKCResult_NoneNoneZ");
        *ret_conv = (this_arg_conv->validate_counterparty_revocation)(this_arg_conv->this_arg, idx, secret_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1sign_1holder_1commitment_1and_1htlcs(JNIEnv *env, jclass clz, int64_t this_arg, int64_t commitment_tx) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        LDKHolderCommitmentTransaction commitment_tx_conv;
-       commitment_tx_conv.inner = (void*)(commitment_tx & (~1));
-       commitment_tx_conv.is_owned = false;
+       commitment_tx_conv.inner = untag_ptr(commitment_tx);
+       commitment_tx_conv.is_owned = ptr_is_owned(commitment_tx);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(commitment_tx_conv);
+       commitment_tx_conv.is_owned = false;
        LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ), "LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ");
        *ret_conv = (this_arg_conv->sign_holder_commitment_and_htlcs)(this_arg_conv->this_arg, &commitment_tx_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1sign_1justice_1revoked_1output(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray justice_tx, int64_t input, int64_t amount, int8_tArray per_commitment_key) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        LDKTransaction justice_tx_ref;
        justice_tx_ref.datalen = (*env)->GetArrayLength(env, justice_tx);
@@ -5423,12 +4944,12 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1sign_1justice_1re
        unsigned char (*per_commitment_key_ref)[32] = &per_commitment_key_arr;
        LDKCResult_SignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_SignatureNoneZ), "LDKCResult_SignatureNoneZ");
        *ret_conv = (this_arg_conv->sign_justice_revoked_output)(this_arg_conv->this_arg, justice_tx_ref, input, amount, per_commitment_key_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1sign_1justice_1revoked_1htlc(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray justice_tx, int64_t input, int64_t amount, int8_tArray per_commitment_key, int64_t htlc) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        LDKTransaction justice_tx_ref;
        justice_tx_ref.datalen = (*env)->GetArrayLength(env, justice_tx);
@@ -5440,17 +4961,18 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1sign_1justice_1re
        (*env)->GetByteArrayRegion(env, per_commitment_key, 0, 32, per_commitment_key_arr);
        unsigned char (*per_commitment_key_ref)[32] = &per_commitment_key_arr;
        LDKHTLCOutputInCommitment htlc_conv;
-       htlc_conv.inner = (void*)(htlc & (~1));
-       htlc_conv.is_owned = false;
+       htlc_conv.inner = untag_ptr(htlc);
+       htlc_conv.is_owned = ptr_is_owned(htlc);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(htlc_conv);
+       htlc_conv.is_owned = false;
        LDKCResult_SignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_SignatureNoneZ), "LDKCResult_SignatureNoneZ");
        *ret_conv = (this_arg_conv->sign_justice_revoked_htlc)(this_arg_conv->this_arg, justice_tx_ref, input, amount, per_commitment_key_ref, &htlc_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1sign_1counterparty_1htlc_1transaction(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray htlc_tx, int64_t input, int64_t amount, int8_tArray per_commitment_point, int64_t htlc) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        LDKTransaction htlc_tx_ref;
        htlc_tx_ref.datalen = (*env)->GetArrayLength(env, htlc_tx);
@@ -5461,48 +4983,52 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1sign_1counterpart
        CHECK((*env)->GetArrayLength(env, per_commitment_point) == 33);
        (*env)->GetByteArrayRegion(env, per_commitment_point, 0, 33, per_commitment_point_ref.compressed_form);
        LDKHTLCOutputInCommitment htlc_conv;
-       htlc_conv.inner = (void*)(htlc & (~1));
-       htlc_conv.is_owned = false;
+       htlc_conv.inner = untag_ptr(htlc);
+       htlc_conv.is_owned = ptr_is_owned(htlc);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(htlc_conv);
+       htlc_conv.is_owned = false;
        LDKCResult_SignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_SignatureNoneZ), "LDKCResult_SignatureNoneZ");
        *ret_conv = (this_arg_conv->sign_counterparty_htlc_transaction)(this_arg_conv->this_arg, htlc_tx_ref, input, amount, per_commitment_point_ref, &htlc_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1sign_1closing_1transaction(JNIEnv *env, jclass clz, int64_t this_arg, int64_t closing_tx) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        LDKClosingTransaction closing_tx_conv;
-       closing_tx_conv.inner = (void*)(closing_tx & (~1));
-       closing_tx_conv.is_owned = false;
+       closing_tx_conv.inner = untag_ptr(closing_tx);
+       closing_tx_conv.is_owned = ptr_is_owned(closing_tx);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(closing_tx_conv);
+       closing_tx_conv.is_owned = false;
        LDKCResult_SignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_SignatureNoneZ), "LDKCResult_SignatureNoneZ");
        *ret_conv = (this_arg_conv->sign_closing_transaction)(this_arg_conv->this_arg, &closing_tx_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1sign_1channel_1announcement(JNIEnv *env, jclass clz, int64_t this_arg, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        LDKUnsignedChannelAnnouncement msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        LDKCResult_C2Tuple_SignatureSignatureZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_SignatureSignatureZNoneZ), "LDKCResult_C2Tuple_SignatureSignatureZNoneZ");
        *ret_conv = (this_arg_conv->sign_channel_announcement)(this_arg_conv->this_arg, &msg_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_BaseSign_1ready_1channel(JNIEnv *env, jclass clz, int64_t this_arg, int64_t channel_parameters) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        LDKChannelTransactionParameters channel_parameters_conv;
-       channel_parameters_conv.inner = (void*)(channel_parameters & (~1));
-       channel_parameters_conv.is_owned = false;
+       channel_parameters_conv.inner = untag_ptr(channel_parameters);
+       channel_parameters_conv.is_owned = ptr_is_owned(channel_parameters);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_parameters_conv);
+       channel_parameters_conv.is_owned = false;
        (this_arg_conv->ready_channel)(this_arg_conv->this_arg, &channel_parameters_conv);
 }
 
@@ -5512,18 +5038,13 @@ LDKChannelPublicKeys LDKBaseSign_set_get_pubkeys(LDKBaseSign* this_arg) {
        return this_arg->pubkeys;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1get_1pubkeys(JNIEnv *env, jclass clz, int64_t this_arg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        LDKChannelPublicKeys ret_var = LDKBaseSign_set_get_pubkeys(this_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -5592,8 +5113,8 @@ static inline LDKSign LDKSign_init (JNIEnv *env, jclass clz, jobject o, jobject
        CHECK(calls->write_meth != NULL);
 
        LDKChannelPublicKeys pubkeys_conv;
-       pubkeys_conv.inner = (void*)(pubkeys & (~1));
-       pubkeys_conv.is_owned = (pubkeys & 1) || (pubkeys == 0);
+       pubkeys_conv.inner = untag_ptr(pubkeys);
+       pubkeys_conv.is_owned = ptr_is_owned(pubkeys);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(pubkeys_conv);
 
        LDKSign ret = {
@@ -5609,17 +5130,15 @@ static inline LDKSign LDKSign_init (JNIEnv *env, jclass clz, jobject o, jobject
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKSign_1new(JNIEnv *env, jclass clz, jobject o, jobject BaseSign, int64_t pubkeys) {
        LDKSign *res_ptr = MALLOC(sizeof(LDKSign), "LDKSign");
        *res_ptr = LDKSign_init(env, clz, o, BaseSign, pubkeys);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKSign_1get_1BaseSign(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKSign *inp = (LDKSign *)(arg & ~1);
-       uint64_t res_ptr = (uint64_t)&inp->BaseSign;
-       DO_ASSERT((res_ptr & 1) == 0);
-       return (int64_t)(res_ptr | 1);
+       LDKSign *inp = (LDKSign *)untag_ptr(arg);
+       return tag_ptr(&inp->BaseSign, false);
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Sign_1write(JNIEnv *env, jclass clz, int64_t this_arg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKSign* this_arg_conv = (LDKSign*)this_arg_ptr;
        LDKCVec_u8Z ret_var = (this_arg_conv->write)(this_arg_conv->this_arg);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
@@ -5633,10 +5152,10 @@ CHECK(owner->result_ok);
        return Sign_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SignDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_SignDecodeErrorZ* owner_conv = (LDKCResult_SignDecodeErrorZ*)(owner & ~1);
+       LDKCResult_SignDecodeErrorZ* owner_conv = (LDKCResult_SignDecodeErrorZ*)untag_ptr(owner);
        LDKSign* ret_ret = MALLOC(sizeof(LDKSign), "LDKSign");
        *ret_ret = CResult_SignDecodeErrorZ_get_ok(owner_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 static inline struct LDKDecodeError CResult_SignDecodeErrorZ_get_err(LDKCResult_SignDecodeErrorZ *NONNULL_PTR owner){
@@ -5644,16 +5163,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SignDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_SignDecodeErrorZ* owner_conv = (LDKCResult_SignDecodeErrorZ*)(owner & ~1);
+       LDKCResult_SignDecodeErrorZ* owner_conv = (LDKCResult_SignDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_SignDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -5662,7 +5176,7 @@ CHECK(owner->result_ok);
        return *owner->contents.result;
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_CResult_1RecoverableSignatureNoneZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_RecoverableSignatureNoneZ* owner_conv = (LDKCResult_RecoverableSignatureNoneZ*)(owner & ~1);
+       LDKCResult_RecoverableSignatureNoneZ* owner_conv = (LDKCResult_RecoverableSignatureNoneZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 68);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 68, CResult_RecoverableSignatureNoneZ_get_ok(owner_conv).serialized_form);
        return ret_arr;
@@ -5673,7 +5187,7 @@ CHECK(!owner->result_ok);
        return *owner->contents.err;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1RecoverableSignatureNoneZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_RecoverableSignatureNoneZ* owner_conv = (LDKCResult_RecoverableSignatureNoneZ*)(owner & ~1);
+       LDKCResult_RecoverableSignatureNoneZ* owner_conv = (LDKCResult_RecoverableSignatureNoneZ*)untag_ptr(owner);
        CResult_RecoverableSignatureNoneZ_get_err(owner_conv);
 }
 
@@ -5689,7 +5203,7 @@ CHECK(owner->result_ok);
        return CVec_CVec_u8ZZ_clone(&*owner->contents.result);
 }
 JNIEXPORT jobjectArray JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1CVec_1u8ZZNoneZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_CVec_CVec_u8ZZNoneZ* owner_conv = (LDKCResult_CVec_CVec_u8ZZNoneZ*)(owner & ~1);
+       LDKCResult_CVec_CVec_u8ZZNoneZ* owner_conv = (LDKCResult_CVec_CVec_u8ZZNoneZ*)untag_ptr(owner);
        LDKCVec_CVec_u8ZZ ret_var = CResult_CVec_CVec_u8ZZNoneZ_get_ok(owner_conv);
        jobjectArray ret_arr = NULL;
        ret_arr = (*env)->NewObjectArray(env, ret_var.datalen, arr_of_B_clz, NULL);
@@ -5711,7 +5225,7 @@ CHECK(!owner->result_ok);
        return *owner->contents.err;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1CVec_1u8ZZNoneZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_CVec_CVec_u8ZZNoneZ* owner_conv = (LDKCResult_CVec_CVec_u8ZZNoneZ*)(owner & ~1);
+       LDKCResult_CVec_CVec_u8ZZNoneZ* owner_conv = (LDKCResult_CVec_CVec_u8ZZNoneZ*)untag_ptr(owner);
        CResult_CVec_CVec_u8ZZNoneZ_get_err(owner_conv);
 }
 
@@ -5720,16 +5234,11 @@ CHECK(owner->result_ok);
        return InMemorySigner_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InMemorySignerDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_InMemorySignerDecodeErrorZ* owner_conv = (LDKCResult_InMemorySignerDecodeErrorZ*)(owner & ~1);
+       LDKCResult_InMemorySignerDecodeErrorZ* owner_conv = (LDKCResult_InMemorySignerDecodeErrorZ*)untag_ptr(owner);
        LDKInMemorySigner ret_var = CResult_InMemorySignerDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -5738,16 +5247,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InMemorySignerDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_InMemorySignerDecodeErrorZ* owner_conv = (LDKCResult_InMemorySignerDecodeErrorZ*)(owner & ~1);
+       LDKCResult_InMemorySignerDecodeErrorZ* owner_conv = (LDKCResult_InMemorySignerDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_InMemorySignerDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -5763,7 +5267,7 @@ CHECK(owner->result_ok);
        return *owner->contents.result;
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_CResult_1TransactionNoneZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_TransactionNoneZ* owner_conv = (LDKCResult_TransactionNoneZ*)(owner & ~1);
+       LDKCResult_TransactionNoneZ* owner_conv = (LDKCResult_TransactionNoneZ*)untag_ptr(owner);
        LDKTransaction ret_var = CResult_TransactionNoneZ_get_ok(owner_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -5775,7 +5279,7 @@ CHECK(!owner->result_ok);
        return *owner->contents.err;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1TransactionNoneZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_TransactionNoneZ* owner_conv = (LDKCResult_TransactionNoneZ*)(owner & ~1);
+       LDKCResult_TransactionNoneZ* owner_conv = (LDKCResult_TransactionNoneZ*)untag_ptr(owner);
        CResult_TransactionNoneZ_get_err(owner_conv);
 }
 
@@ -5783,7 +5287,7 @@ static inline struct LDKThirtyTwoBytes C2Tuple_BlockHashChannelMonitorZ_get_a(LD
        return ThirtyTwoBytes_clone(&owner->a);
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_C2Tuple_1BlockHashChannelMonitorZ_1get_1a(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_BlockHashChannelMonitorZ* owner_conv = (LDKC2Tuple_BlockHashChannelMonitorZ*)(owner & ~1);
+       LDKC2Tuple_BlockHashChannelMonitorZ* owner_conv = (LDKC2Tuple_BlockHashChannelMonitorZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, C2Tuple_BlockHashChannelMonitorZ_get_a(owner_conv).data);
        return ret_arr;
@@ -5793,16 +5297,11 @@ static inline struct LDKChannelMonitor C2Tuple_BlockHashChannelMonitorZ_get_b(LD
        return ChannelMonitor_clone(&owner->b);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1BlockHashChannelMonitorZ_1get_1b(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_BlockHashChannelMonitorZ* owner_conv = (LDKC2Tuple_BlockHashChannelMonitorZ*)(owner & ~1);
+       LDKC2Tuple_BlockHashChannelMonitorZ* owner_conv = (LDKC2Tuple_BlockHashChannelMonitorZ*)untag_ptr(owner);
        LDKChannelMonitor ret_var = C2Tuple_BlockHashChannelMonitorZ_get_b(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -5818,7 +5317,7 @@ CHECK(owner->result_ok);
        return CVec_C2Tuple_BlockHashChannelMonitorZZ_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1C2Tuple_1BlockHashChannelMonitorZZErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ* owner_conv = (LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ*)(owner & ~1);
+       LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ* owner_conv = (LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ*)untag_ptr(owner);
        LDKCVec_C2Tuple_BlockHashChannelMonitorZZ ret_var = CResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ_get_ok(owner_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -5826,7 +5325,7 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1C2Tuple
        for (size_t j = 0; j < ret_var.datalen; j++) {
                LDKC2Tuple_BlockHashChannelMonitorZ* ret_conv_35_conv = MALLOC(sizeof(LDKC2Tuple_BlockHashChannelMonitorZ), "LDKC2Tuple_BlockHashChannelMonitorZ");
                *ret_conv_35_conv = ret_var.data[j];
-               ret_arr_ptr[j] = ((int64_t)ret_conv_35_conv);
+               ret_arr_ptr[j] = tag_ptr(ret_conv_35_conv, true);
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
        FREE(ret_var.data);
@@ -5838,7 +5337,7 @@ CHECK(!owner->result_ok);
        return *owner->contents.err;
 }
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1C2Tuple_1BlockHashChannelMonitorZZErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ* owner_conv = (LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ*)(owner & ~1);
+       LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ* owner_conv = (LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ*)untag_ptr(owner);
        jclass ret_conv = LDKIOError_to_java(env, CResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ_get_err(owner_conv));
        return ret_conv;
 }
@@ -5860,7 +5359,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKCOption_1u16Z_init (JN
        CHECK(LDKCOption_u16Z_None_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKCOption_1u16Z_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKCOption_u16Z *obj = (LDKCOption_u16Z*)(ptr & ~1);
+       LDKCOption_u16Z *obj = (LDKCOption_u16Z*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKCOption_u16Z_Some: {
                        int16_t some_conv = obj->some;
@@ -5917,7 +5416,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKAPIError_init (JNIEnv
        CHECK(LDKAPIError_IncompatibleShutdownScript_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKAPIError_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKAPIError *obj = (LDKAPIError*)(ptr & ~1);
+       LDKAPIError *obj = (LDKAPIError*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKAPIError_APIMisuseError: {
                        LDKStr err_str = obj->api_misuse_error.err;
@@ -5946,10 +5445,8 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKAPIError_1ref_1from_1ptr
                case LDKAPIError_IncompatibleShutdownScript: {
                        LDKShutdownScript script_var = obj->incompatible_shutdown_script.script;
                        int64_t script_ref = 0;
-                       CHECK((((uintptr_t)script_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&script_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(script_var);
-                       script_ref = (uintptr_t)script_var.inner & ~1;
+                       script_ref = tag_ptr(script_var.inner, false);
                        return (*env)->NewObject(env, LDKAPIError_IncompatibleShutdownScript_class, LDKAPIError_IncompatibleShutdownScript_meth, script_ref);
                }
                default: abort();
@@ -5960,7 +5457,7 @@ CHECK(owner->result_ok);
        return *owner->contents.result;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NoneAPIErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NoneAPIErrorZ* owner_conv = (LDKCResult_NoneAPIErrorZ*)(owner & ~1);
+       LDKCResult_NoneAPIErrorZ* owner_conv = (LDKCResult_NoneAPIErrorZ*)untag_ptr(owner);
        CResult_NoneAPIErrorZ_get_ok(owner_conv);
 }
 
@@ -5969,10 +5466,10 @@ CHECK(!owner->result_ok);
        return APIError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneAPIErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NoneAPIErrorZ* owner_conv = (LDKCResult_NoneAPIErrorZ*)(owner & ~1);
+       LDKCResult_NoneAPIErrorZ* owner_conv = (LDKCResult_NoneAPIErrorZ*)untag_ptr(owner);
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = CResult_NoneAPIErrorZ_get_err(owner_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -5995,7 +5492,7 @@ CHECK(owner->result_ok);
        return ThirtyTwoBytes_clone(&*owner->contents.result);
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_CResult_1_1u832APIErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult__u832APIErrorZ* owner_conv = (LDKCResult__u832APIErrorZ*)(owner & ~1);
+       LDKCResult__u832APIErrorZ* owner_conv = (LDKCResult__u832APIErrorZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, CResult__u832APIErrorZ_get_ok(owner_conv).data);
        return ret_arr;
@@ -6006,10 +5503,10 @@ CHECK(!owner->result_ok);
        return APIError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1_1u832APIErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult__u832APIErrorZ* owner_conv = (LDKCResult__u832APIErrorZ*)(owner & ~1);
+       LDKCResult__u832APIErrorZ* owner_conv = (LDKCResult__u832APIErrorZ*)untag_ptr(owner);
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = CResult__u832APIErrorZ_get_err(owner_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -6044,10 +5541,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKPaymentSendFailure_ini
        CHECK(LDKPaymentSendFailure_PartialFailure_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKPaymentSendFailure_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKPaymentSendFailure *obj = (LDKPaymentSendFailure*)(ptr & ~1);
+       LDKPaymentSendFailure *obj = (LDKPaymentSendFailure*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKPaymentSendFailure_ParameterError: {
-                       int64_t parameter_error_ref = ((uintptr_t)&obj->parameter_error) | 1;
+                       int64_t parameter_error_ref = tag_ptr(&obj->parameter_error, false);
                        return (*env)->NewObject(env, LDKPaymentSendFailure_ParameterError_class, LDKPaymentSendFailure_ParameterError_meth, parameter_error_ref);
                }
                case LDKPaymentSendFailure_PathParameterError: {
@@ -6059,7 +5556,7 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKPaymentSendFailure_1ref_
                                LDKCResult_NoneAPIErrorZ* path_parameter_error_conv_22_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
                                *path_parameter_error_conv_22_conv = path_parameter_error_var.data[w];
                                *path_parameter_error_conv_22_conv = CResult_NoneAPIErrorZ_clone(path_parameter_error_conv_22_conv);
-                               path_parameter_error_arr_ptr[w] = (int64_t)path_parameter_error_conv_22_conv;
+                               path_parameter_error_arr_ptr[w] = tag_ptr(path_parameter_error_conv_22_conv, true);
                        }
                        (*env)->ReleasePrimitiveArrayCritical(env, path_parameter_error_arr, path_parameter_error_arr_ptr, 0);
                        return (*env)->NewObject(env, LDKPaymentSendFailure_PathParameterError_class, LDKPaymentSendFailure_PathParameterError_meth, path_parameter_error_arr);
@@ -6070,7 +5567,7 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKPaymentSendFailure_1ref_
                        all_failed_retry_safe_arr = (*env)->NewLongArray(env, all_failed_retry_safe_var.datalen);
                        int64_t *all_failed_retry_safe_arr_ptr = (*env)->GetPrimitiveArrayCritical(env, all_failed_retry_safe_arr, NULL);
                        for (size_t k = 0; k < all_failed_retry_safe_var.datalen; k++) {
-                               int64_t all_failed_retry_safe_conv_10_ref = ((uintptr_t)&all_failed_retry_safe_var.data[k]) | 1;
+                               int64_t all_failed_retry_safe_conv_10_ref = tag_ptr(&all_failed_retry_safe_var.data[k], false);
                                all_failed_retry_safe_arr_ptr[k] = all_failed_retry_safe_conv_10_ref;
                        }
                        (*env)->ReleasePrimitiveArrayCritical(env, all_failed_retry_safe_arr, all_failed_retry_safe_arr_ptr, 0);
@@ -6085,17 +5582,13 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKPaymentSendFailure_1ref_
                                LDKCResult_NoneAPIErrorZ* results_conv_22_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
                                *results_conv_22_conv = results_var.data[w];
                                *results_conv_22_conv = CResult_NoneAPIErrorZ_clone(results_conv_22_conv);
-                               results_arr_ptr[w] = (int64_t)results_conv_22_conv;
+                               results_arr_ptr[w] = tag_ptr(results_conv_22_conv, true);
                        }
                        (*env)->ReleasePrimitiveArrayCritical(env, results_arr, results_arr_ptr, 0);
                        LDKRouteParameters failed_paths_retry_var = obj->partial_failure.failed_paths_retry;
                        int64_t failed_paths_retry_ref = 0;
-                       if ((uintptr_t)failed_paths_retry_var.inner > 4096) {
-                               CHECK((((uintptr_t)failed_paths_retry_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                               CHECK((((uintptr_t)&failed_paths_retry_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(failed_paths_retry_var);
-                               failed_paths_retry_ref = (uintptr_t)failed_paths_retry_var.inner & ~1;
-                       }
+                       failed_paths_retry_ref = tag_ptr(failed_paths_retry_var.inner, false);
                        int8_tArray payment_id_arr = (*env)->NewByteArray(env, 32);
                        (*env)->SetByteArrayRegion(env, payment_id_arr, 0, 32, obj->partial_failure.payment_id.data);
                        return (*env)->NewObject(env, LDKPaymentSendFailure_PartialFailure_class, LDKPaymentSendFailure_PartialFailure_meth, results_arr, failed_paths_retry_ref, payment_id_arr);
@@ -6108,7 +5601,7 @@ CHECK(owner->result_ok);
        return ThirtyTwoBytes_clone(&*owner->contents.result);
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentIdPaymentSendFailureZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PaymentIdPaymentSendFailureZ* owner_conv = (LDKCResult_PaymentIdPaymentSendFailureZ*)(owner & ~1);
+       LDKCResult_PaymentIdPaymentSendFailureZ* owner_conv = (LDKCResult_PaymentIdPaymentSendFailureZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, CResult_PaymentIdPaymentSendFailureZ_get_ok(owner_conv).data);
        return ret_arr;
@@ -6119,10 +5612,10 @@ CHECK(!owner->result_ok);
        return PaymentSendFailure_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentIdPaymentSendFailureZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PaymentIdPaymentSendFailureZ* owner_conv = (LDKCResult_PaymentIdPaymentSendFailureZ*)(owner & ~1);
+       LDKCResult_PaymentIdPaymentSendFailureZ* owner_conv = (LDKCResult_PaymentIdPaymentSendFailureZ*)untag_ptr(owner);
        LDKPaymentSendFailure *ret_copy = MALLOC(sizeof(LDKPaymentSendFailure), "LDKPaymentSendFailure");
        *ret_copy = CResult_PaymentIdPaymentSendFailureZ_get_err(owner_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -6131,7 +5624,7 @@ CHECK(owner->result_ok);
        return *owner->contents.result;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NonePaymentSendFailureZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NonePaymentSendFailureZ* owner_conv = (LDKCResult_NonePaymentSendFailureZ*)(owner & ~1);
+       LDKCResult_NonePaymentSendFailureZ* owner_conv = (LDKCResult_NonePaymentSendFailureZ*)untag_ptr(owner);
        CResult_NonePaymentSendFailureZ_get_ok(owner_conv);
 }
 
@@ -6140,10 +5633,10 @@ CHECK(!owner->result_ok);
        return PaymentSendFailure_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NonePaymentSendFailureZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NonePaymentSendFailureZ* owner_conv = (LDKCResult_NonePaymentSendFailureZ*)(owner & ~1);
+       LDKCResult_NonePaymentSendFailureZ* owner_conv = (LDKCResult_NonePaymentSendFailureZ*)untag_ptr(owner);
        LDKPaymentSendFailure *ret_copy = MALLOC(sizeof(LDKPaymentSendFailure), "LDKPaymentSendFailure");
        *ret_copy = CResult_NonePaymentSendFailureZ_get_err(owner_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -6151,7 +5644,7 @@ static inline struct LDKThirtyTwoBytes C2Tuple_PaymentHashPaymentIdZ_get_a(LDKC2
        return ThirtyTwoBytes_clone(&owner->a);
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PaymentHashPaymentIdZ_1get_1a(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_PaymentHashPaymentIdZ* owner_conv = (LDKC2Tuple_PaymentHashPaymentIdZ*)(owner & ~1);
+       LDKC2Tuple_PaymentHashPaymentIdZ* owner_conv = (LDKC2Tuple_PaymentHashPaymentIdZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, C2Tuple_PaymentHashPaymentIdZ_get_a(owner_conv).data);
        return ret_arr;
@@ -6161,7 +5654,7 @@ static inline struct LDKThirtyTwoBytes C2Tuple_PaymentHashPaymentIdZ_get_b(LDKC2
        return ThirtyTwoBytes_clone(&owner->b);
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PaymentHashPaymentIdZ_1get_1b(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_PaymentHashPaymentIdZ* owner_conv = (LDKC2Tuple_PaymentHashPaymentIdZ*)(owner & ~1);
+       LDKC2Tuple_PaymentHashPaymentIdZ* owner_conv = (LDKC2Tuple_PaymentHashPaymentIdZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, C2Tuple_PaymentHashPaymentIdZ_get_b(owner_conv).data);
        return ret_arr;
@@ -6172,10 +5665,10 @@ CHECK(owner->result_ok);
        return C2Tuple_PaymentHashPaymentIdZ_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentIdZPaymentSendFailureZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* owner_conv = (LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ*)(owner & ~1);
+       LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* owner_conv = (LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ*)untag_ptr(owner);
        LDKC2Tuple_PaymentHashPaymentIdZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PaymentHashPaymentIdZ), "LDKC2Tuple_PaymentHashPaymentIdZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_get_ok(owner_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 static inline struct LDKPaymentSendFailure CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_get_err(LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ *NONNULL_PTR owner){
@@ -6183,10 +5676,10 @@ CHECK(!owner->result_ok);
        return PaymentSendFailure_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentIdZPaymentSendFailureZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* owner_conv = (LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ*)(owner & ~1);
+       LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* owner_conv = (LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ*)untag_ptr(owner);
        LDKPaymentSendFailure *ret_copy = MALLOC(sizeof(LDKPaymentSendFailure), "LDKPaymentSendFailure");
        *ret_copy = CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_get_err(owner_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -6201,7 +5694,7 @@ static inline struct LDKThirtyTwoBytes C2Tuple_PaymentHashPaymentSecretZ_get_a(L
        return ThirtyTwoBytes_clone(&owner->a);
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PaymentHashPaymentSecretZ_1get_1a(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_PaymentHashPaymentSecretZ* owner_conv = (LDKC2Tuple_PaymentHashPaymentSecretZ*)(owner & ~1);
+       LDKC2Tuple_PaymentHashPaymentSecretZ* owner_conv = (LDKC2Tuple_PaymentHashPaymentSecretZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, C2Tuple_PaymentHashPaymentSecretZ_get_a(owner_conv).data);
        return ret_arr;
@@ -6211,7 +5704,7 @@ static inline struct LDKThirtyTwoBytes C2Tuple_PaymentHashPaymentSecretZ_get_b(L
        return ThirtyTwoBytes_clone(&owner->b);
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PaymentHashPaymentSecretZ_1get_1b(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_PaymentHashPaymentSecretZ* owner_conv = (LDKC2Tuple_PaymentHashPaymentSecretZ*)(owner & ~1);
+       LDKC2Tuple_PaymentHashPaymentSecretZ* owner_conv = (LDKC2Tuple_PaymentHashPaymentSecretZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, C2Tuple_PaymentHashPaymentSecretZ_get_b(owner_conv).data);
        return ret_arr;
@@ -6222,10 +5715,10 @@ CHECK(owner->result_ok);
        return C2Tuple_PaymentHashPaymentSecretZ_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentSecretZNoneZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ* owner_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ*)(owner & ~1);
+       LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ* owner_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ*)untag_ptr(owner);
        LDKC2Tuple_PaymentHashPaymentSecretZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PaymentHashPaymentSecretZ), "LDKC2Tuple_PaymentHashPaymentSecretZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_get_ok(owner_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 static inline void CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_get_err(LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ *NONNULL_PTR owner){
@@ -6233,7 +5726,7 @@ CHECK(!owner->result_ok);
        return *owner->contents.err;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentSecretZNoneZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ* owner_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ*)(owner & ~1);
+       LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ* owner_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ*)untag_ptr(owner);
        CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_get_err(owner_conv);
 }
 
@@ -6242,10 +5735,10 @@ CHECK(owner->result_ok);
        return C2Tuple_PaymentHashPaymentSecretZ_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentSecretZAPIErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ* owner_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ*)(owner & ~1);
+       LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ* owner_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ*)untag_ptr(owner);
        LDKC2Tuple_PaymentHashPaymentSecretZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PaymentHashPaymentSecretZ), "LDKC2Tuple_PaymentHashPaymentSecretZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_get_ok(owner_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 static inline struct LDKAPIError CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_get_err(LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ *NONNULL_PTR owner){
@@ -6253,10 +5746,10 @@ CHECK(!owner->result_ok);
        return APIError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentSecretZAPIErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ* owner_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ*)(owner & ~1);
+       LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ* owner_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ*)untag_ptr(owner);
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_get_err(owner_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -6265,7 +5758,7 @@ CHECK(owner->result_ok);
        return ThirtyTwoBytes_clone(&*owner->contents.result);
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentSecretNoneZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PaymentSecretNoneZ* owner_conv = (LDKCResult_PaymentSecretNoneZ*)(owner & ~1);
+       LDKCResult_PaymentSecretNoneZ* owner_conv = (LDKCResult_PaymentSecretNoneZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, CResult_PaymentSecretNoneZ_get_ok(owner_conv).data);
        return ret_arr;
@@ -6276,7 +5769,7 @@ CHECK(!owner->result_ok);
        return *owner->contents.err;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentSecretNoneZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PaymentSecretNoneZ* owner_conv = (LDKCResult_PaymentSecretNoneZ*)(owner & ~1);
+       LDKCResult_PaymentSecretNoneZ* owner_conv = (LDKCResult_PaymentSecretNoneZ*)untag_ptr(owner);
        CResult_PaymentSecretNoneZ_get_err(owner_conv);
 }
 
@@ -6285,7 +5778,7 @@ CHECK(owner->result_ok);
        return ThirtyTwoBytes_clone(&*owner->contents.result);
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentSecretAPIErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PaymentSecretAPIErrorZ* owner_conv = (LDKCResult_PaymentSecretAPIErrorZ*)(owner & ~1);
+       LDKCResult_PaymentSecretAPIErrorZ* owner_conv = (LDKCResult_PaymentSecretAPIErrorZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, CResult_PaymentSecretAPIErrorZ_get_ok(owner_conv).data);
        return ret_arr;
@@ -6296,10 +5789,10 @@ CHECK(!owner->result_ok);
        return APIError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentSecretAPIErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PaymentSecretAPIErrorZ* owner_conv = (LDKCResult_PaymentSecretAPIErrorZ*)(owner & ~1);
+       LDKCResult_PaymentSecretAPIErrorZ* owner_conv = (LDKCResult_PaymentSecretAPIErrorZ*)untag_ptr(owner);
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = CResult_PaymentSecretAPIErrorZ_get_err(owner_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -6308,7 +5801,7 @@ CHECK(owner->result_ok);
        return ThirtyTwoBytes_clone(&*owner->contents.result);
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentPreimageAPIErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PaymentPreimageAPIErrorZ* owner_conv = (LDKCResult_PaymentPreimageAPIErrorZ*)(owner & ~1);
+       LDKCResult_PaymentPreimageAPIErrorZ* owner_conv = (LDKCResult_PaymentPreimageAPIErrorZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, CResult_PaymentPreimageAPIErrorZ_get_ok(owner_conv).data);
        return ret_arr;
@@ -6319,10 +5812,10 @@ CHECK(!owner->result_ok);
        return APIError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentPreimageAPIErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PaymentPreimageAPIErrorZ* owner_conv = (LDKCResult_PaymentPreimageAPIErrorZ*)(owner & ~1);
+       LDKCResult_PaymentPreimageAPIErrorZ* owner_conv = (LDKCResult_PaymentPreimageAPIErrorZ*)untag_ptr(owner);
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = CResult_PaymentPreimageAPIErrorZ_get_err(owner_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -6331,16 +5824,11 @@ CHECK(owner->result_ok);
        return CounterpartyForwardingInfo_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyForwardingInfoDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_CounterpartyForwardingInfoDecodeErrorZ* owner_conv = (LDKCResult_CounterpartyForwardingInfoDecodeErrorZ*)(owner & ~1);
+       LDKCResult_CounterpartyForwardingInfoDecodeErrorZ* owner_conv = (LDKCResult_CounterpartyForwardingInfoDecodeErrorZ*)untag_ptr(owner);
        LDKCounterpartyForwardingInfo ret_var = CResult_CounterpartyForwardingInfoDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -6349,16 +5837,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyForwardingInfoDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_CounterpartyForwardingInfoDecodeErrorZ* owner_conv = (LDKCResult_CounterpartyForwardingInfoDecodeErrorZ*)(owner & ~1);
+       LDKCResult_CounterpartyForwardingInfoDecodeErrorZ* owner_conv = (LDKCResult_CounterpartyForwardingInfoDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_CounterpartyForwardingInfoDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -6367,16 +5850,11 @@ CHECK(owner->result_ok);
        return ChannelCounterparty_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelCounterpartyDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelCounterpartyDecodeErrorZ* owner_conv = (LDKCResult_ChannelCounterpartyDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelCounterpartyDecodeErrorZ* owner_conv = (LDKCResult_ChannelCounterpartyDecodeErrorZ*)untag_ptr(owner);
        LDKChannelCounterparty ret_var = CResult_ChannelCounterpartyDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -6385,16 +5863,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelCounterpartyDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelCounterpartyDecodeErrorZ* owner_conv = (LDKCResult_ChannelCounterpartyDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelCounterpartyDecodeErrorZ* owner_conv = (LDKCResult_ChannelCounterpartyDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_ChannelCounterpartyDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -6403,16 +5876,11 @@ CHECK(owner->result_ok);
        return ChannelDetails_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelDetailsDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelDetailsDecodeErrorZ* owner_conv = (LDKCResult_ChannelDetailsDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelDetailsDecodeErrorZ* owner_conv = (LDKCResult_ChannelDetailsDecodeErrorZ*)untag_ptr(owner);
        LDKChannelDetails ret_var = CResult_ChannelDetailsDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -6421,16 +5889,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelDetailsDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelDetailsDecodeErrorZ* owner_conv = (LDKCResult_ChannelDetailsDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelDetailsDecodeErrorZ* owner_conv = (LDKCResult_ChannelDetailsDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_ChannelDetailsDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -6439,16 +5902,11 @@ CHECK(owner->result_ok);
        return PhantomRouteHints_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PhantomRouteHintsDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PhantomRouteHintsDecodeErrorZ* owner_conv = (LDKCResult_PhantomRouteHintsDecodeErrorZ*)(owner & ~1);
+       LDKCResult_PhantomRouteHintsDecodeErrorZ* owner_conv = (LDKCResult_PhantomRouteHintsDecodeErrorZ*)untag_ptr(owner);
        LDKPhantomRouteHints ret_var = CResult_PhantomRouteHintsDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -6457,16 +5915,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PhantomRouteHintsDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PhantomRouteHintsDecodeErrorZ* owner_conv = (LDKCResult_PhantomRouteHintsDecodeErrorZ*)(owner & ~1);
+       LDKCResult_PhantomRouteHintsDecodeErrorZ* owner_conv = (LDKCResult_PhantomRouteHintsDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_PhantomRouteHintsDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -6513,22 +5966,12 @@ LDKCResult_NoneChannelMonitorUpdateErrZ watch_channel_LDKWatch_jcall(const void*
        }
        LDKOutPoint funding_txo_var = funding_txo;
        int64_t funding_txo_ref = 0;
-       CHECK((((uintptr_t)funding_txo_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&funding_txo_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(funding_txo_var);
-       funding_txo_ref = (uintptr_t)funding_txo_var.inner;
-       if (funding_txo_var.is_owned) {
-               funding_txo_ref |= 1;
-       }
+       funding_txo_ref = tag_ptr(funding_txo_var.inner, funding_txo_var.is_owned);
        LDKChannelMonitor monitor_var = monitor;
        int64_t monitor_ref = 0;
-       CHECK((((uintptr_t)monitor_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&monitor_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(monitor_var);
-       monitor_ref = (uintptr_t)monitor_var.inner;
-       if (monitor_var.is_owned) {
-               monitor_ref |= 1;
-       }
+       monitor_ref = tag_ptr(monitor_var.inner, monitor_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        uint64_t ret = (*env)->CallLongMethod(env, obj, j_calls->watch_channel_meth, funding_txo_ref, monitor_ref);
@@ -6536,10 +5979,10 @@ LDKCResult_NoneChannelMonitorUpdateErrZ watch_channel_LDKWatch_jcall(const void*
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to watch_channel in LDKWatch from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneChannelMonitorUpdateErrZ ret_conv = *(LDKCResult_NoneChannelMonitorUpdateErrZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -6556,22 +5999,12 @@ LDKCResult_NoneChannelMonitorUpdateErrZ update_channel_LDKWatch_jcall(const void
        }
        LDKOutPoint funding_txo_var = funding_txo;
        int64_t funding_txo_ref = 0;
-       CHECK((((uintptr_t)funding_txo_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&funding_txo_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(funding_txo_var);
-       funding_txo_ref = (uintptr_t)funding_txo_var.inner;
-       if (funding_txo_var.is_owned) {
-               funding_txo_ref |= 1;
-       }
+       funding_txo_ref = tag_ptr(funding_txo_var.inner, funding_txo_var.is_owned);
        LDKChannelMonitorUpdate update_var = update;
        int64_t update_ref = 0;
-       CHECK((((uintptr_t)update_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&update_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(update_var);
-       update_ref = (uintptr_t)update_var.inner;
-       if (update_var.is_owned) {
-               update_ref |= 1;
-       }
+       update_ref = tag_ptr(update_var.inner, update_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        uint64_t ret = (*env)->CallLongMethod(env, obj, j_calls->update_channel_meth, funding_txo_ref, update_ref);
@@ -6579,10 +6012,10 @@ LDKCResult_NoneChannelMonitorUpdateErrZ update_channel_LDKWatch_jcall(const void
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to update_channel in LDKWatch from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneChannelMonitorUpdateErrZ ret_conv = *(LDKCResult_NoneChannelMonitorUpdateErrZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -6613,10 +6046,10 @@ LDKCVec_C3Tuple_OutPointCVec_MonitorEventZPublicKeyZZ release_pending_monitor_ev
        int64_t* ret_vals = (*env)->GetLongArrayElements (env, ret, NULL);
        for (size_t x = 0; x < ret_constr.datalen; x++) {
                int64_t ret_conv_49 = ret_vals[x];
-               void* ret_conv_49_ptr = (void*)(((uintptr_t)ret_conv_49) & ~1);
+               void* ret_conv_49_ptr = untag_ptr(ret_conv_49);
                CHECK_ACCESS(ret_conv_49_ptr);
                LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ ret_conv_49_conv = *(LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ*)(ret_conv_49_ptr);
-               FREE((void*)ret_conv_49);
+               FREE(untag_ptr(ret_conv_49));
                ret_constr.data[x] = ret_conv_49_conv;
        }
        (*env)->ReleaseLongArrayElements(env, ret, ret_vals, 0);
@@ -6655,49 +6088,49 @@ static inline LDKWatch LDKWatch_init (JNIEnv *env, jclass clz, jobject o) {
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKWatch_1new(JNIEnv *env, jclass clz, jobject o) {
        LDKWatch *res_ptr = MALLOC(sizeof(LDKWatch), "LDKWatch");
        *res_ptr = LDKWatch_init(env, clz, o);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Watch_1watch_1channel(JNIEnv *env, jclass clz, int64_t this_arg, int64_t funding_txo, int64_t monitor) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKWatch* this_arg_conv = (LDKWatch*)this_arg_ptr;
        LDKOutPoint funding_txo_conv;
-       funding_txo_conv.inner = (void*)(funding_txo & (~1));
-       funding_txo_conv.is_owned = (funding_txo & 1) || (funding_txo == 0);
+       funding_txo_conv.inner = untag_ptr(funding_txo);
+       funding_txo_conv.is_owned = ptr_is_owned(funding_txo);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(funding_txo_conv);
        funding_txo_conv = OutPoint_clone(&funding_txo_conv);
        LDKChannelMonitor monitor_conv;
-       monitor_conv.inner = (void*)(monitor & (~1));
-       monitor_conv.is_owned = (monitor & 1) || (monitor == 0);
+       monitor_conv.inner = untag_ptr(monitor);
+       monitor_conv.is_owned = ptr_is_owned(monitor);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(monitor_conv);
        monitor_conv = ChannelMonitor_clone(&monitor_conv);
        LDKCResult_NoneChannelMonitorUpdateErrZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneChannelMonitorUpdateErrZ), "LDKCResult_NoneChannelMonitorUpdateErrZ");
        *ret_conv = (this_arg_conv->watch_channel)(this_arg_conv->this_arg, funding_txo_conv, monitor_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Watch_1update_1channel(JNIEnv *env, jclass clz, int64_t this_arg, int64_t funding_txo, int64_t update) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKWatch* this_arg_conv = (LDKWatch*)this_arg_ptr;
        LDKOutPoint funding_txo_conv;
-       funding_txo_conv.inner = (void*)(funding_txo & (~1));
-       funding_txo_conv.is_owned = (funding_txo & 1) || (funding_txo == 0);
+       funding_txo_conv.inner = untag_ptr(funding_txo);
+       funding_txo_conv.is_owned = ptr_is_owned(funding_txo);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(funding_txo_conv);
        funding_txo_conv = OutPoint_clone(&funding_txo_conv);
        LDKChannelMonitorUpdate update_conv;
-       update_conv.inner = (void*)(update & (~1));
-       update_conv.is_owned = (update & 1) || (update == 0);
+       update_conv.inner = untag_ptr(update);
+       update_conv.is_owned = ptr_is_owned(update);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(update_conv);
        update_conv = ChannelMonitorUpdate_clone(&update_conv);
        LDKCResult_NoneChannelMonitorUpdateErrZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneChannelMonitorUpdateErrZ), "LDKCResult_NoneChannelMonitorUpdateErrZ");
        *ret_conv = (this_arg_conv->update_channel)(this_arg_conv->this_arg, funding_txo_conv, update_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_Watch_1release_1pending_1monitor_1events(JNIEnv *env, jclass clz, int64_t this_arg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKWatch* this_arg_conv = (LDKWatch*)this_arg_ptr;
        LDKCVec_C3Tuple_OutPointCVec_MonitorEventZPublicKeyZZ ret_var = (this_arg_conv->release_pending_monitor_events)(this_arg_conv->this_arg);
        int64_tArray ret_arr = NULL;
@@ -6706,7 +6139,7 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_Watch_1release_1pendin
        for (size_t x = 0; x < ret_var.datalen; x++) {
                LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ* ret_conv_49_conv = MALLOC(sizeof(LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ), "LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ");
                *ret_conv_49_conv = ret_var.data[x];
-               ret_arr_ptr[x] = ((int64_t)ret_conv_49_conv);
+               ret_arr_ptr[x] = tag_ptr(ret_conv_49_conv, true);
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
        FREE(ret_var.data);
@@ -6784,11 +6217,11 @@ static inline LDKBroadcasterInterface LDKBroadcasterInterface_init (JNIEnv *env,
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKBroadcasterInterface_1new(JNIEnv *env, jclass clz, jobject o) {
        LDKBroadcasterInterface *res_ptr = MALLOC(sizeof(LDKBroadcasterInterface), "LDKBroadcasterInterface");
        *res_ptr = LDKBroadcasterInterface_init(env, clz, o);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_BroadcasterInterface_1broadcast_1transaction(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray tx) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKBroadcasterInterface* this_arg_conv = (LDKBroadcasterInterface*)this_arg_ptr;
        LDKTransaction tx_ref;
        tx_ref.datalen = (*env)->GetArrayLength(env, tx);
@@ -6845,10 +6278,10 @@ LDKCResult_SecretKeyNoneZ get_node_secret_LDKKeysInterface_jcall(const void* thi
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to get_node_secret in LDKKeysInterface from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_SecretKeyNoneZ ret_conv = *(LDKCResult_SecretKeyNoneZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -6896,8 +6329,8 @@ LDKShutdownScript get_shutdown_scriptpubkey_LDKKeysInterface_jcall(const void* t
                (*env)->FatalError(env, "A call to get_shutdown_scriptpubkey in LDKKeysInterface from rust threw an exception.");
        }
        LDKShutdownScript ret_conv;
-       ret_conv.inner = (void*)(ret & (~1));
-       ret_conv.is_owned = (ret & 1) || (ret == 0);
+       ret_conv.inner = untag_ptr(ret);
+       ret_conv.is_owned = ptr_is_owned(ret);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv);
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -6922,10 +6355,10 @@ LDKSign get_channel_signer_LDKKeysInterface_jcall(const void* this_arg, bool inb
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to get_channel_signer in LDKKeysInterface from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKSign ret_conv = *(LDKSign*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -6974,10 +6407,10 @@ LDKCResult_SignDecodeErrorZ read_chan_signer_LDKKeysInterface_jcall(const void*
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to read_chan_signer in LDKKeysInterface from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_SignDecodeErrorZ ret_conv = *(LDKCResult_SignDecodeErrorZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -7013,10 +6446,10 @@ LDKCResult_RecoverableSignatureNoneZ sign_invoice_LDKKeysInterface_jcall(const v
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to sign_invoice in LDKKeysInterface from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_RecoverableSignatureNoneZ ret_conv = *(LDKCResult_RecoverableSignatureNoneZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -7091,21 +6524,21 @@ static inline LDKKeysInterface LDKKeysInterface_init (JNIEnv *env, jclass clz, j
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKKeysInterface_1new(JNIEnv *env, jclass clz, jobject o) {
        LDKKeysInterface *res_ptr = MALLOC(sizeof(LDKKeysInterface), "LDKKeysInterface");
        *res_ptr = LDKKeysInterface_init(env, clz, o);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_KeysInterface_1get_1node_1secret(JNIEnv *env, jclass clz, int64_t this_arg, jclass recipient) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)this_arg_ptr;
        LDKRecipient recipient_conv = LDKRecipient_from_java(env, recipient);
        LDKCResult_SecretKeyNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_SecretKeyNoneZ), "LDKCResult_SecretKeyNoneZ");
        *ret_conv = (this_arg_conv->get_node_secret)(this_arg_conv->this_arg, recipient_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_KeysInterface_1get_1destination_1script(JNIEnv *env, jclass clz, int64_t this_arg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)this_arg_ptr;
        LDKCVec_u8Z ret_var = (this_arg_conv->get_destination_script)(this_arg_conv->this_arg);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
@@ -7115,33 +6548,28 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_KeysInterface_1get_1des
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_KeysInterface_1get_1shutdown_1scriptpubkey(JNIEnv *env, jclass clz, int64_t this_arg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)this_arg_ptr;
        LDKShutdownScript ret_var = (this_arg_conv->get_shutdown_scriptpubkey)(this_arg_conv->this_arg);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_KeysInterface_1get_1channel_1signer(JNIEnv *env, jclass clz, int64_t this_arg, jboolean inbound, int64_t channel_value_satoshis) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)this_arg_ptr;
        LDKSign* ret_ret = MALLOC(sizeof(LDKSign), "LDKSign");
        *ret_ret = (this_arg_conv->get_channel_signer)(this_arg_conv->this_arg, inbound, channel_value_satoshis);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_KeysInterface_1get_1secure_1random_1bytes(JNIEnv *env, jclass clz, int64_t this_arg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)this_arg_ptr;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, (this_arg_conv->get_secure_random_bytes)(this_arg_conv->this_arg).data);
@@ -7149,8 +6577,8 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_KeysInterface_1get_1sec
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_KeysInterface_1read_1chan_1signer(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray reader) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)this_arg_ptr;
        LDKu8slice reader_ref;
        reader_ref.datalen = (*env)->GetArrayLength(env, reader);
@@ -7158,12 +6586,12 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_KeysInterface_1read_1chan_1
        LDKCResult_SignDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SignDecodeErrorZ), "LDKCResult_SignDecodeErrorZ");
        *ret_conv = (this_arg_conv->read_chan_signer)(this_arg_conv->this_arg, reader_ref);
        (*env)->ReleaseByteArrayElements(env, reader, (int8_t*)reader_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_KeysInterface_1sign_1invoice(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray hrp_bytes, jobjectArray invoice_data, jclass receipient) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)this_arg_ptr;
        LDKu8slice hrp_bytes_ref;
        hrp_bytes_ref.datalen = (*env)->GetArrayLength(env, hrp_bytes);
@@ -7185,12 +6613,12 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_KeysInterface_1sign_1invoic
        LDKCResult_RecoverableSignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_RecoverableSignatureNoneZ), "LDKCResult_RecoverableSignatureNoneZ");
        *ret_conv = (this_arg_conv->sign_invoice)(this_arg_conv->this_arg, hrp_bytes_ref, invoice_data_constr, receipient_conv);
        (*env)->ReleaseByteArrayElements(env, hrp_bytes, (int8_t*)hrp_bytes_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_KeysInterface_1get_1inbound_1payment_1key_1material(JNIEnv *env, jclass clz, int64_t this_arg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)this_arg_ptr;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, (this_arg_conv->get_inbound_payment_key_material)(this_arg_conv->this_arg).data);
@@ -7266,11 +6694,11 @@ static inline LDKFeeEstimator LDKFeeEstimator_init (JNIEnv *env, jclass clz, job
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKFeeEstimator_1new(JNIEnv *env, jclass clz, jobject o) {
        LDKFeeEstimator *res_ptr = MALLOC(sizeof(LDKFeeEstimator), "LDKFeeEstimator");
        *res_ptr = LDKFeeEstimator_init(env, clz, o);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_FeeEstimator_1get_1est_1sat_1per_11000_1weight(JNIEnv *env, jclass clz, int64_t this_arg, jclass confirmation_target) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKFeeEstimator* this_arg_conv = (LDKFeeEstimator*)this_arg_ptr;
        LDKConfirmationTarget confirmation_target_conv = LDKConfirmationTarget_from_java(env, confirmation_target);
        int32_t ret_conv = (this_arg_conv->get_est_sat_per_1000_weight)(this_arg_conv->this_arg, confirmation_target_conv);
@@ -7281,7 +6709,7 @@ static inline struct LDKThirtyTwoBytes C2Tuple_BlockHashChannelManagerZ_get_a(LD
        return ThirtyTwoBytes_clone(&owner->a);
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_C2Tuple_1BlockHashChannelManagerZ_1get_1a(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_BlockHashChannelManagerZ* owner_conv = (LDKC2Tuple_BlockHashChannelManagerZ*)(owner & ~1);
+       LDKC2Tuple_BlockHashChannelManagerZ* owner_conv = (LDKC2Tuple_BlockHashChannelManagerZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, C2Tuple_BlockHashChannelManagerZ_get_a(owner_conv).data);
        return ret_arr;
@@ -7291,13 +6719,11 @@ static inline struct LDKChannelManager *C2Tuple_BlockHashChannelManagerZ_get_b(L
        return &owner->b;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1BlockHashChannelManagerZ_1get_1b(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_BlockHashChannelManagerZ* owner_conv = (LDKC2Tuple_BlockHashChannelManagerZ*)(owner & ~1);
+       LDKC2Tuple_BlockHashChannelManagerZ* owner_conv = (LDKC2Tuple_BlockHashChannelManagerZ*)untag_ptr(owner);
        LDKChannelManager ret_var = *C2Tuple_BlockHashChannelManagerZ_get_b(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner & ~1;
+       ret_ref = tag_ptr(ret_var.inner, false);
        return ret_ref;
 }
 
@@ -7306,8 +6732,8 @@ CHECK(owner->result_ok);
        return &*owner->contents.result;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1BlockHashChannelManagerZDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ* owner_conv = (LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ*)(owner & ~1);
-       int64_t ret_ret = (uintptr_t)CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_get_ok(owner_conv) | 1;
+       LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ* owner_conv = (LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ*)untag_ptr(owner);
+       int64_t ret_ret = tag_ptr(CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_get_ok(owner_conv), false);
        return ret_ret;
 }
 
@@ -7316,16 +6742,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1BlockHashChannelManagerZDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ* owner_conv = (LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ*)(owner & ~1);
+       LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ* owner_conv = (LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -7334,16 +6755,11 @@ CHECK(owner->result_ok);
        return ChannelConfig_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelConfigDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelConfigDecodeErrorZ* owner_conv = (LDKCResult_ChannelConfigDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelConfigDecodeErrorZ* owner_conv = (LDKCResult_ChannelConfigDecodeErrorZ*)untag_ptr(owner);
        LDKChannelConfig ret_var = CResult_ChannelConfigDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -7352,16 +6768,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelConfigDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelConfigDecodeErrorZ* owner_conv = (LDKCResult_ChannelConfigDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelConfigDecodeErrorZ* owner_conv = (LDKCResult_ChannelConfigDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_ChannelConfigDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -7370,16 +6781,11 @@ CHECK(owner->result_ok);
        return OutPoint_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1OutPointDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_OutPointDecodeErrorZ* owner_conv = (LDKCResult_OutPointDecodeErrorZ*)(owner & ~1);
+       LDKCResult_OutPointDecodeErrorZ* owner_conv = (LDKCResult_OutPointDecodeErrorZ*)untag_ptr(owner);
        LDKOutPoint ret_var = CResult_OutPointDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -7388,16 +6794,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1OutPointDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_OutPointDecodeErrorZ* owner_conv = (LDKCResult_OutPointDecodeErrorZ*)(owner & ~1);
+       LDKCResult_OutPointDecodeErrorZ* owner_conv = (LDKCResult_OutPointDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_OutPointDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -7525,19 +6926,19 @@ static inline LDKType LDKType_init (JNIEnv *env, jclass clz, jobject o) {
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKType_1new(JNIEnv *env, jclass clz, jobject o) {
        LDKType *res_ptr = MALLOC(sizeof(LDKType), "LDKType");
        *res_ptr = LDKType_init(env, clz, o);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_Type_1type_1id(JNIEnv *env, jclass clz, int64_t this_arg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKType* this_arg_conv = (LDKType*)this_arg_ptr;
        int16_t ret_conv = (this_arg_conv->type_id)(this_arg_conv->this_arg);
        return ret_conv;
 }
 
 JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_Type_1debug_1str(JNIEnv *env, jclass clz, int64_t this_arg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKType* this_arg_conv = (LDKType*)this_arg_ptr;
        LDKStr ret_str = (this_arg_conv->debug_str)(this_arg_conv->this_arg);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
@@ -7546,8 +6947,8 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_Type_1debug_1str(JNIEnv *en
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Type_1write(JNIEnv *env, jclass clz, int64_t this_arg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKType* this_arg_conv = (LDKType*)this_arg_ptr;
        LDKCVec_u8Z ret_var = (this_arg_conv->write)(this_arg_conv->this_arg);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
@@ -7573,12 +6974,12 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKCOption_1TypeZ_init (J
        CHECK(LDKCOption_TypeZ_None_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKCOption_1TypeZ_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKCOption_TypeZ *obj = (LDKCOption_TypeZ*)(ptr & ~1);
+       LDKCOption_TypeZ *obj = (LDKCOption_TypeZ*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKCOption_TypeZ_Some: {
                        LDKType* some_ret = MALLOC(sizeof(LDKType), "LDKType");
                        *some_ret = Type_clone(&obj->some);
-                       return (*env)->NewObject(env, LDKCOption_TypeZ_Some_class, LDKCOption_TypeZ_Some_meth, (int64_t)some_ret);
+                       return (*env)->NewObject(env, LDKCOption_TypeZ_Some_class, LDKCOption_TypeZ_Some_meth, tag_ptr(some_ret, true));
                }
                case LDKCOption_TypeZ_None: {
                        return (*env)->NewObject(env, LDKCOption_TypeZ_None_class, LDKCOption_TypeZ_None_meth);
@@ -7591,10 +6992,10 @@ CHECK(owner->result_ok);
        return COption_TypeZ_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1TypeZDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_COption_TypeZDecodeErrorZ* owner_conv = (LDKCResult_COption_TypeZDecodeErrorZ*)(owner & ~1);
+       LDKCResult_COption_TypeZDecodeErrorZ* owner_conv = (LDKCResult_COption_TypeZDecodeErrorZ*)untag_ptr(owner);
        LDKCOption_TypeZ *ret_copy = MALLOC(sizeof(LDKCOption_TypeZ), "LDKCOption_TypeZ");
        *ret_copy = CResult_COption_TypeZDecodeErrorZ_get_ok(owner_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -7603,16 +7004,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1TypeZDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_COption_TypeZDecodeErrorZ* owner_conv = (LDKCResult_COption_TypeZDecodeErrorZ*)(owner & ~1);
+       LDKCResult_COption_TypeZDecodeErrorZ* owner_conv = (LDKCResult_COption_TypeZDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_COption_TypeZDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -7640,7 +7036,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKPaymentError_init (JNI
        CHECK(LDKPaymentError_Sending_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKPaymentError_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKPaymentError *obj = (LDKPaymentError*)(ptr & ~1);
+       LDKPaymentError *obj = (LDKPaymentError*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKPaymentError_Invoice: {
                        LDKStr invoice_str = obj->invoice;
@@ -7650,14 +7046,12 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKPaymentError_1ref_1from_
                case LDKPaymentError_Routing: {
                        LDKLightningError routing_var = obj->routing;
                        int64_t routing_ref = 0;
-                       CHECK((((uintptr_t)routing_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&routing_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(routing_var);
-                       routing_ref = (uintptr_t)routing_var.inner & ~1;
+                       routing_ref = tag_ptr(routing_var.inner, false);
                        return (*env)->NewObject(env, LDKPaymentError_Routing_class, LDKPaymentError_Routing_meth, routing_ref);
                }
                case LDKPaymentError_Sending: {
-                       int64_t sending_ref = ((uintptr_t)&obj->sending) | 1;
+                       int64_t sending_ref = tag_ptr(&obj->sending, false);
                        return (*env)->NewObject(env, LDKPaymentError_Sending_class, LDKPaymentError_Sending_meth, sending_ref);
                }
                default: abort();
@@ -7668,7 +7062,7 @@ CHECK(owner->result_ok);
        return ThirtyTwoBytes_clone(&*owner->contents.result);
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentIdPaymentErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PaymentIdPaymentErrorZ* owner_conv = (LDKCResult_PaymentIdPaymentErrorZ*)(owner & ~1);
+       LDKCResult_PaymentIdPaymentErrorZ* owner_conv = (LDKCResult_PaymentIdPaymentErrorZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, CResult_PaymentIdPaymentErrorZ_get_ok(owner_conv).data);
        return ret_arr;
@@ -7679,10 +7073,10 @@ CHECK(!owner->result_ok);
        return PaymentError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentIdPaymentErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PaymentIdPaymentErrorZ* owner_conv = (LDKCResult_PaymentIdPaymentErrorZ*)(owner & ~1);
+       LDKCResult_PaymentIdPaymentErrorZ* owner_conv = (LDKCResult_PaymentIdPaymentErrorZ*)untag_ptr(owner);
        LDKPaymentError *ret_copy = MALLOC(sizeof(LDKPaymentError), "LDKPaymentError");
        *ret_copy = CResult_PaymentIdPaymentErrorZ_get_err(owner_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -7815,10 +7209,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKParseError_init (JNIEn
        CHECK(LDKParseError_Skip_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKParseError_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKParseError *obj = (LDKParseError*)(ptr & ~1);
+       LDKParseError *obj = (LDKParseError*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKParseError_Bech32Error: {
-                       int64_t bech32_error_ref = ((uintptr_t)&obj->bech32_error) | 1;
+                       int64_t bech32_error_ref = tag_ptr(&obj->bech32_error, false);
                        return (*env)->NewObject(env, LDKParseError_Bech32Error_class, LDKParseError_Bech32Error_meth, bech32_error_ref);
                }
                case LDKParseError_ParseAmountError: {
@@ -7885,7 +7279,7 @@ CHECK(owner->result_ok);
        return SiPrefix_clone(&*owner->contents.result);
 }
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_CResult_1SiPrefixParseErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_SiPrefixParseErrorZ* owner_conv = (LDKCResult_SiPrefixParseErrorZ*)(owner & ~1);
+       LDKCResult_SiPrefixParseErrorZ* owner_conv = (LDKCResult_SiPrefixParseErrorZ*)untag_ptr(owner);
        jclass ret_conv = LDKSiPrefix_to_java(env, CResult_SiPrefixParseErrorZ_get_ok(owner_conv));
        return ret_conv;
 }
@@ -7895,10 +7289,10 @@ CHECK(!owner->result_ok);
        return ParseError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SiPrefixParseErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_SiPrefixParseErrorZ* owner_conv = (LDKCResult_SiPrefixParseErrorZ*)(owner & ~1);
+       LDKCResult_SiPrefixParseErrorZ* owner_conv = (LDKCResult_SiPrefixParseErrorZ*)untag_ptr(owner);
        LDKParseError *ret_copy = MALLOC(sizeof(LDKParseError), "LDKParseError");
        *ret_copy = CResult_SiPrefixParseErrorZ_get_err(owner_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -7919,10 +7313,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKParseOrSemanticError_i
        CHECK(LDKParseOrSemanticError_SemanticError_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKParseOrSemanticError_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKParseOrSemanticError *obj = (LDKParseOrSemanticError*)(ptr & ~1);
+       LDKParseOrSemanticError *obj = (LDKParseOrSemanticError*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKParseOrSemanticError_ParseError: {
-                       int64_t parse_error_ref = ((uintptr_t)&obj->parse_error) | 1;
+                       int64_t parse_error_ref = tag_ptr(&obj->parse_error, false);
                        return (*env)->NewObject(env, LDKParseOrSemanticError_ParseError_class, LDKParseOrSemanticError_ParseError_meth, parse_error_ref);
                }
                case LDKParseOrSemanticError_SemanticError: {
@@ -7937,16 +7331,11 @@ CHECK(owner->result_ok);
        return Invoice_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceParseOrSemanticErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_InvoiceParseOrSemanticErrorZ* owner_conv = (LDKCResult_InvoiceParseOrSemanticErrorZ*)(owner & ~1);
+       LDKCResult_InvoiceParseOrSemanticErrorZ* owner_conv = (LDKCResult_InvoiceParseOrSemanticErrorZ*)untag_ptr(owner);
        LDKInvoice ret_var = CResult_InvoiceParseOrSemanticErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -7955,10 +7344,10 @@ CHECK(!owner->result_ok);
        return ParseOrSemanticError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceParseOrSemanticErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_InvoiceParseOrSemanticErrorZ* owner_conv = (LDKCResult_InvoiceParseOrSemanticErrorZ*)(owner & ~1);
+       LDKCResult_InvoiceParseOrSemanticErrorZ* owner_conv = (LDKCResult_InvoiceParseOrSemanticErrorZ*)untag_ptr(owner);
        LDKParseOrSemanticError *ret_copy = MALLOC(sizeof(LDKParseOrSemanticError), "LDKParseOrSemanticError");
        *ret_copy = CResult_InvoiceParseOrSemanticErrorZ_get_err(owner_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -7967,16 +7356,11 @@ CHECK(owner->result_ok);
        return SignedRawInvoice_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SignedRawInvoiceParseErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_SignedRawInvoiceParseErrorZ* owner_conv = (LDKCResult_SignedRawInvoiceParseErrorZ*)(owner & ~1);
+       LDKCResult_SignedRawInvoiceParseErrorZ* owner_conv = (LDKCResult_SignedRawInvoiceParseErrorZ*)untag_ptr(owner);
        LDKSignedRawInvoice ret_var = CResult_SignedRawInvoiceParseErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -7985,10 +7369,10 @@ CHECK(!owner->result_ok);
        return ParseError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SignedRawInvoiceParseErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_SignedRawInvoiceParseErrorZ* owner_conv = (LDKCResult_SignedRawInvoiceParseErrorZ*)(owner & ~1);
+       LDKCResult_SignedRawInvoiceParseErrorZ* owner_conv = (LDKCResult_SignedRawInvoiceParseErrorZ*)untag_ptr(owner);
        LDKParseError *ret_copy = MALLOC(sizeof(LDKParseError), "LDKParseError");
        *ret_copy = CResult_SignedRawInvoiceParseErrorZ_get_err(owner_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -7996,16 +7380,11 @@ static inline struct LDKRawInvoice C3Tuple_RawInvoice_u832InvoiceSignatureZ_get_
        return RawInvoice_clone(&owner->a);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C3Tuple_1RawInvoice_1u832InvoiceSignatureZ_1get_1a(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ* owner_conv = (LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ*)(owner & ~1);
+       LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ* owner_conv = (LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ*)untag_ptr(owner);
        LDKRawInvoice ret_var = C3Tuple_RawInvoice_u832InvoiceSignatureZ_get_a(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -8013,7 +7392,7 @@ static inline struct LDKThirtyTwoBytes C3Tuple_RawInvoice_u832InvoiceSignatureZ_
        return ThirtyTwoBytes_clone(&owner->b);
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_C3Tuple_1RawInvoice_1u832InvoiceSignatureZ_1get_1b(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ* owner_conv = (LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ*)(owner & ~1);
+       LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ* owner_conv = (LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, C3Tuple_RawInvoice_u832InvoiceSignatureZ_get_b(owner_conv).data);
        return ret_arr;
@@ -8023,16 +7402,11 @@ static inline struct LDKInvoiceSignature C3Tuple_RawInvoice_u832InvoiceSignature
        return InvoiceSignature_clone(&owner->c);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C3Tuple_1RawInvoice_1u832InvoiceSignatureZ_1get_1c(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ* owner_conv = (LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ*)(owner & ~1);
+       LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ* owner_conv = (LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ*)untag_ptr(owner);
        LDKInvoiceSignature ret_var = C3Tuple_RawInvoice_u832InvoiceSignatureZ_get_c(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -8041,16 +7415,11 @@ CHECK(owner->result_ok);
        return PayeePubKey_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PayeePubKeyErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PayeePubKeyErrorZ* owner_conv = (LDKCResult_PayeePubKeyErrorZ*)(owner & ~1);
+       LDKCResult_PayeePubKeyErrorZ* owner_conv = (LDKCResult_PayeePubKeyErrorZ*)untag_ptr(owner);
        LDKPayeePubKey ret_var = CResult_PayeePubKeyErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -8059,7 +7428,7 @@ CHECK(!owner->result_ok);
        return *owner->contents.err;
 }
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_CResult_1PayeePubKeyErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PayeePubKeyErrorZ* owner_conv = (LDKCResult_PayeePubKeyErrorZ*)(owner & ~1);
+       LDKCResult_PayeePubKeyErrorZ* owner_conv = (LDKCResult_PayeePubKeyErrorZ*)untag_ptr(owner);
        jclass ret_conv = LDKSecp256k1Error_to_java(env, CResult_PayeePubKeyErrorZ_get_err(owner_conv));
        return ret_conv;
 }
@@ -8076,16 +7445,11 @@ CHECK(owner->result_ok);
        return PositiveTimestamp_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PositiveTimestampCreationErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PositiveTimestampCreationErrorZ* owner_conv = (LDKCResult_PositiveTimestampCreationErrorZ*)(owner & ~1);
+       LDKCResult_PositiveTimestampCreationErrorZ* owner_conv = (LDKCResult_PositiveTimestampCreationErrorZ*)untag_ptr(owner);
        LDKPositiveTimestamp ret_var = CResult_PositiveTimestampCreationErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -8094,7 +7458,7 @@ CHECK(!owner->result_ok);
        return CreationError_clone(&*owner->contents.err);
 }
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_CResult_1PositiveTimestampCreationErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PositiveTimestampCreationErrorZ* owner_conv = (LDKCResult_PositiveTimestampCreationErrorZ*)(owner & ~1);
+       LDKCResult_PositiveTimestampCreationErrorZ* owner_conv = (LDKCResult_PositiveTimestampCreationErrorZ*)untag_ptr(owner);
        jclass ret_conv = LDKCreationError_to_java(env, CResult_PositiveTimestampCreationErrorZ_get_err(owner_conv));
        return ret_conv;
 }
@@ -8104,7 +7468,7 @@ CHECK(owner->result_ok);
        return *owner->contents.result;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NoneSemanticErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NoneSemanticErrorZ* owner_conv = (LDKCResult_NoneSemanticErrorZ*)(owner & ~1);
+       LDKCResult_NoneSemanticErrorZ* owner_conv = (LDKCResult_NoneSemanticErrorZ*)untag_ptr(owner);
        CResult_NoneSemanticErrorZ_get_ok(owner_conv);
 }
 
@@ -8113,7 +7477,7 @@ CHECK(!owner->result_ok);
        return SemanticError_clone(&*owner->contents.err);
 }
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_CResult_1NoneSemanticErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NoneSemanticErrorZ* owner_conv = (LDKCResult_NoneSemanticErrorZ*)(owner & ~1);
+       LDKCResult_NoneSemanticErrorZ* owner_conv = (LDKCResult_NoneSemanticErrorZ*)untag_ptr(owner);
        jclass ret_conv = LDKSemanticError_to_java(env, CResult_NoneSemanticErrorZ_get_err(owner_conv));
        return ret_conv;
 }
@@ -8123,16 +7487,11 @@ CHECK(owner->result_ok);
        return Invoice_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceSemanticErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_InvoiceSemanticErrorZ* owner_conv = (LDKCResult_InvoiceSemanticErrorZ*)(owner & ~1);
+       LDKCResult_InvoiceSemanticErrorZ* owner_conv = (LDKCResult_InvoiceSemanticErrorZ*)untag_ptr(owner);
        LDKInvoice ret_var = CResult_InvoiceSemanticErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -8141,7 +7500,7 @@ CHECK(!owner->result_ok);
        return SemanticError_clone(&*owner->contents.err);
 }
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceSemanticErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_InvoiceSemanticErrorZ* owner_conv = (LDKCResult_InvoiceSemanticErrorZ*)(owner & ~1);
+       LDKCResult_InvoiceSemanticErrorZ* owner_conv = (LDKCResult_InvoiceSemanticErrorZ*)untag_ptr(owner);
        jclass ret_conv = LDKSemanticError_to_java(env, CResult_InvoiceSemanticErrorZ_get_err(owner_conv));
        return ret_conv;
 }
@@ -8151,16 +7510,11 @@ CHECK(owner->result_ok);
        return Description_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1DescriptionCreationErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_DescriptionCreationErrorZ* owner_conv = (LDKCResult_DescriptionCreationErrorZ*)(owner & ~1);
+       LDKCResult_DescriptionCreationErrorZ* owner_conv = (LDKCResult_DescriptionCreationErrorZ*)untag_ptr(owner);
        LDKDescription ret_var = CResult_DescriptionCreationErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -8169,7 +7523,7 @@ CHECK(!owner->result_ok);
        return CreationError_clone(&*owner->contents.err);
 }
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_CResult_1DescriptionCreationErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_DescriptionCreationErrorZ* owner_conv = (LDKCResult_DescriptionCreationErrorZ*)(owner & ~1);
+       LDKCResult_DescriptionCreationErrorZ* owner_conv = (LDKCResult_DescriptionCreationErrorZ*)untag_ptr(owner);
        jclass ret_conv = LDKCreationError_to_java(env, CResult_DescriptionCreationErrorZ_get_err(owner_conv));
        return ret_conv;
 }
@@ -8179,16 +7533,11 @@ CHECK(owner->result_ok);
        return PrivateRoute_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PrivateRouteCreationErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PrivateRouteCreationErrorZ* owner_conv = (LDKCResult_PrivateRouteCreationErrorZ*)(owner & ~1);
+       LDKCResult_PrivateRouteCreationErrorZ* owner_conv = (LDKCResult_PrivateRouteCreationErrorZ*)untag_ptr(owner);
        LDKPrivateRoute ret_var = CResult_PrivateRouteCreationErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -8197,7 +7546,7 @@ CHECK(!owner->result_ok);
        return CreationError_clone(&*owner->contents.err);
 }
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_CResult_1PrivateRouteCreationErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PrivateRouteCreationErrorZ* owner_conv = (LDKCResult_PrivateRouteCreationErrorZ*)(owner & ~1);
+       LDKCResult_PrivateRouteCreationErrorZ* owner_conv = (LDKCResult_PrivateRouteCreationErrorZ*)untag_ptr(owner);
        jclass ret_conv = LDKCreationError_to_java(env, CResult_PrivateRouteCreationErrorZ_get_err(owner_conv));
        return ret_conv;
 }
@@ -8207,7 +7556,7 @@ CHECK(owner->result_ok);
        return *owner->contents.result;
 }
 JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_CResult_1StringErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_StringErrorZ* owner_conv = (LDKCResult_StringErrorZ*)(owner & ~1);
+       LDKCResult_StringErrorZ* owner_conv = (LDKCResult_StringErrorZ*)untag_ptr(owner);
        LDKStr ret_str = CResult_StringErrorZ_get_ok(owner_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
        return ret_conv;
@@ -8218,7 +7567,7 @@ CHECK(!owner->result_ok);
        return *owner->contents.err;
 }
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_CResult_1StringErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_StringErrorZ* owner_conv = (LDKCResult_StringErrorZ*)(owner & ~1);
+       LDKCResult_StringErrorZ* owner_conv = (LDKCResult_StringErrorZ*)untag_ptr(owner);
        jclass ret_conv = LDKSecp256k1Error_to_java(env, CResult_StringErrorZ_get_err(owner_conv));
        return ret_conv;
 }
@@ -8228,16 +7577,11 @@ CHECK(owner->result_ok);
        return ChannelMonitorUpdate_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelMonitorUpdateDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelMonitorUpdateDecodeErrorZ* owner_conv = (LDKCResult_ChannelMonitorUpdateDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelMonitorUpdateDecodeErrorZ* owner_conv = (LDKCResult_ChannelMonitorUpdateDecodeErrorZ*)untag_ptr(owner);
        LDKChannelMonitorUpdate ret_var = CResult_ChannelMonitorUpdateDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -8246,16 +7590,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelMonitorUpdateDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelMonitorUpdateDecodeErrorZ* owner_conv = (LDKCResult_ChannelMonitorUpdateDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelMonitorUpdateDecodeErrorZ* owner_conv = (LDKCResult_ChannelMonitorUpdateDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_ChannelMonitorUpdateDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -8276,10 +7615,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKCOption_1MonitorEventZ
        CHECK(LDKCOption_MonitorEventZ_None_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKCOption_1MonitorEventZ_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKCOption_MonitorEventZ *obj = (LDKCOption_MonitorEventZ*)(ptr & ~1);
+       LDKCOption_MonitorEventZ *obj = (LDKCOption_MonitorEventZ*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKCOption_MonitorEventZ_Some: {
-                       int64_t some_ref = ((uintptr_t)&obj->some) | 1;
+                       int64_t some_ref = tag_ptr(&obj->some, false);
                        return (*env)->NewObject(env, LDKCOption_MonitorEventZ_Some_class, LDKCOption_MonitorEventZ_Some_meth, some_ref);
                }
                case LDKCOption_MonitorEventZ_None: {
@@ -8293,10 +7632,10 @@ CHECK(owner->result_ok);
        return COption_MonitorEventZ_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1MonitorEventZDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_COption_MonitorEventZDecodeErrorZ* owner_conv = (LDKCResult_COption_MonitorEventZDecodeErrorZ*)(owner & ~1);
+       LDKCResult_COption_MonitorEventZDecodeErrorZ* owner_conv = (LDKCResult_COption_MonitorEventZDecodeErrorZ*)untag_ptr(owner);
        LDKCOption_MonitorEventZ *ret_copy = MALLOC(sizeof(LDKCOption_MonitorEventZ), "LDKCOption_MonitorEventZ");
        *ret_copy = CResult_COption_MonitorEventZDecodeErrorZ_get_ok(owner_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -8305,16 +7644,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1MonitorEventZDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_COption_MonitorEventZDecodeErrorZ* owner_conv = (LDKCResult_COption_MonitorEventZDecodeErrorZ*)(owner & ~1);
+       LDKCResult_COption_MonitorEventZDecodeErrorZ* owner_conv = (LDKCResult_COption_MonitorEventZDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_COption_MonitorEventZDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -8323,16 +7657,11 @@ CHECK(owner->result_ok);
        return HTLCUpdate_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1HTLCUpdateDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_HTLCUpdateDecodeErrorZ* owner_conv = (LDKCResult_HTLCUpdateDecodeErrorZ*)(owner & ~1);
+       LDKCResult_HTLCUpdateDecodeErrorZ* owner_conv = (LDKCResult_HTLCUpdateDecodeErrorZ*)untag_ptr(owner);
        LDKHTLCUpdate ret_var = CResult_HTLCUpdateDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -8341,16 +7670,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1HTLCUpdateDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_HTLCUpdateDecodeErrorZ* owner_conv = (LDKCResult_HTLCUpdateDecodeErrorZ*)(owner & ~1);
+       LDKCResult_HTLCUpdateDecodeErrorZ* owner_conv = (LDKCResult_HTLCUpdateDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_HTLCUpdateDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -8358,16 +7682,11 @@ static inline struct LDKOutPoint C2Tuple_OutPointScriptZ_get_a(LDKC2Tuple_OutPoi
        return OutPoint_clone(&owner->a);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1OutPointScriptZ_1get_1a(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_OutPointScriptZ* owner_conv = (LDKC2Tuple_OutPointScriptZ*)(owner & ~1);
+       LDKC2Tuple_OutPointScriptZ* owner_conv = (LDKC2Tuple_OutPointScriptZ*)untag_ptr(owner);
        LDKOutPoint ret_var = C2Tuple_OutPointScriptZ_get_a(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -8375,7 +7694,7 @@ static inline struct LDKCVec_u8Z C2Tuple_OutPointScriptZ_get_b(LDKC2Tuple_OutPoi
        return CVec_u8Z_clone(&owner->b);
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_C2Tuple_1OutPointScriptZ_1get_1b(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_OutPointScriptZ* owner_conv = (LDKC2Tuple_OutPointScriptZ*)(owner & ~1);
+       LDKC2Tuple_OutPointScriptZ* owner_conv = (LDKC2Tuple_OutPointScriptZ*)untag_ptr(owner);
        LDKCVec_u8Z ret_var = C2Tuple_OutPointScriptZ_get_b(owner_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -8387,7 +7706,7 @@ static inline uint32_t C2Tuple_u32ScriptZ_get_a(LDKC2Tuple_u32ScriptZ *NONNULL_P
        return owner->a;
 }
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u32ScriptZ_1get_1a(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_u32ScriptZ* owner_conv = (LDKC2Tuple_u32ScriptZ*)(owner & ~1);
+       LDKC2Tuple_u32ScriptZ* owner_conv = (LDKC2Tuple_u32ScriptZ*)untag_ptr(owner);
        int32_t ret_conv = C2Tuple_u32ScriptZ_get_a(owner_conv);
        return ret_conv;
 }
@@ -8396,7 +7715,7 @@ static inline struct LDKCVec_u8Z C2Tuple_u32ScriptZ_get_b(LDKC2Tuple_u32ScriptZ
        return CVec_u8Z_clone(&owner->b);
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u32ScriptZ_1get_1b(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_u32ScriptZ* owner_conv = (LDKC2Tuple_u32ScriptZ*)(owner & ~1);
+       LDKC2Tuple_u32ScriptZ* owner_conv = (LDKC2Tuple_u32ScriptZ*)untag_ptr(owner);
        LDKCVec_u8Z ret_var = C2Tuple_u32ScriptZ_get_b(owner_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -8415,7 +7734,7 @@ static inline struct LDKThirtyTwoBytes C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ_get
        return ThirtyTwoBytes_clone(&owner->a);
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_C2Tuple_1TxidCVec_1C2Tuple_1u32ScriptZZZ_1get_1a(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ* owner_conv = (LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ*)(owner & ~1);
+       LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ* owner_conv = (LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ_get_a(owner_conv).data);
        return ret_arr;
@@ -8425,7 +7744,7 @@ static inline struct LDKCVec_C2Tuple_u32ScriptZZ C2Tuple_TxidCVec_C2Tuple_u32Scr
        return CVec_C2Tuple_u32ScriptZZ_clone(&owner->b);
 }
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_C2Tuple_1TxidCVec_1C2Tuple_1u32ScriptZZZ_1get_1b(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ* owner_conv = (LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ*)(owner & ~1);
+       LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ* owner_conv = (LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ*)untag_ptr(owner);
        LDKCVec_C2Tuple_u32ScriptZZ ret_var = C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ_get_b(owner_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -8433,7 +7752,7 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_C2Tuple_1TxidCVec_1C2T
        for (size_t v = 0; v < ret_var.datalen; v++) {
                LDKC2Tuple_u32ScriptZ* ret_conv_21_conv = MALLOC(sizeof(LDKC2Tuple_u32ScriptZ), "LDKC2Tuple_u32ScriptZ");
                *ret_conv_21_conv = ret_var.data[v];
-               ret_arr_ptr[v] = ((int64_t)ret_conv_21_conv);
+               ret_arr_ptr[v] = tag_ptr(ret_conv_21_conv, true);
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
        FREE(ret_var.data);
@@ -8458,7 +7777,7 @@ static inline uint32_t C2Tuple_u32TxOutZ_get_a(LDKC2Tuple_u32TxOutZ *NONNULL_PTR
        return owner->a;
 }
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u32TxOutZ_1get_1a(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_u32TxOutZ* owner_conv = (LDKC2Tuple_u32TxOutZ*)(owner & ~1);
+       LDKC2Tuple_u32TxOutZ* owner_conv = (LDKC2Tuple_u32TxOutZ*)untag_ptr(owner);
        int32_t ret_conv = C2Tuple_u32TxOutZ_get_a(owner_conv);
        return ret_conv;
 }
@@ -8467,10 +7786,10 @@ static inline struct LDKTxOut C2Tuple_u32TxOutZ_get_b(LDKC2Tuple_u32TxOutZ *NONN
        return TxOut_clone(&owner->b);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u32TxOutZ_1get_1b(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_u32TxOutZ* owner_conv = (LDKC2Tuple_u32TxOutZ*)(owner & ~1);
+       LDKC2Tuple_u32TxOutZ* owner_conv = (LDKC2Tuple_u32TxOutZ*)untag_ptr(owner);
        LDKTxOut* ret_ref = MALLOC(sizeof(LDKTxOut), "LDKTxOut");
        *ret_ref = C2Tuple_u32TxOutZ_get_b(owner_conv);
-       return (int64_t)ret_ref;
+       return tag_ptr(ret_ref, true);
 }
 
 static inline LDKCVec_C2Tuple_u32TxOutZZ CVec_C2Tuple_u32TxOutZZ_clone(const LDKCVec_C2Tuple_u32TxOutZZ *orig) {
@@ -8484,7 +7803,7 @@ static inline struct LDKThirtyTwoBytes C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_get_
        return ThirtyTwoBytes_clone(&owner->a);
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_C2Tuple_1TxidCVec_1C2Tuple_1u32TxOutZZZ_1get_1a(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* owner_conv = (LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ*)(owner & ~1);
+       LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* owner_conv = (LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_get_a(owner_conv).data);
        return ret_arr;
@@ -8494,7 +7813,7 @@ static inline struct LDKCVec_C2Tuple_u32TxOutZZ C2Tuple_TxidCVec_C2Tuple_u32TxOu
        return CVec_C2Tuple_u32TxOutZZ_clone(&owner->b);
 }
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_C2Tuple_1TxidCVec_1C2Tuple_1u32TxOutZZZ_1get_1b(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* owner_conv = (LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ*)(owner & ~1);
+       LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* owner_conv = (LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ*)untag_ptr(owner);
        LDKCVec_C2Tuple_u32TxOutZZ ret_var = C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_get_b(owner_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -8502,7 +7821,7 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_C2Tuple_1TxidCVec_1C2T
        for (size_t u = 0; u < ret_var.datalen; u++) {
                LDKC2Tuple_u32TxOutZ* ret_conv_20_conv = MALLOC(sizeof(LDKC2Tuple_u32TxOutZ), "LDKC2Tuple_u32TxOutZ");
                *ret_conv_20_conv = ret_var.data[u];
-               ret_arr_ptr[u] = ((int64_t)ret_conv_20_conv);
+               ret_arr_ptr[u] = tag_ptr(ret_conv_20_conv, true);
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
        FREE(ret_var.data);
@@ -8547,7 +7866,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKBalance_init (JNIEnv *
        CHECK(LDKBalance_MaybeClaimableHTLCAwaitingTimeout_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKBalance_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKBalance *obj = (LDKBalance*)(ptr & ~1);
+       LDKBalance *obj = (LDKBalance*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKBalance_ClaimableOnChannelClose: {
                        int64_t claimable_amount_satoshis_conv = obj->claimable_on_channel_close.claimable_amount_satoshis;
@@ -8583,10 +7902,10 @@ CHECK(owner->result_ok);
        return C2Tuple_BlockHashChannelMonitorZ_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1BlockHashChannelMonitorZDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* owner_conv = (LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ*)(owner & ~1);
+       LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* owner_conv = (LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ*)untag_ptr(owner);
        LDKC2Tuple_BlockHashChannelMonitorZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_BlockHashChannelMonitorZ), "LDKC2Tuple_BlockHashChannelMonitorZ");
        *ret_conv = CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_get_ok(owner_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 static inline struct LDKDecodeError CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_get_err(LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ *NONNULL_PTR owner){
@@ -8594,16 +7913,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1BlockHashChannelMonitorZDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* owner_conv = (LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ*)(owner & ~1);
+       LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* owner_conv = (LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -8611,7 +7925,7 @@ static inline struct LDKPublicKey C2Tuple_PublicKeyTypeZ_get_a(LDKC2Tuple_Public
        return owner->a;
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PublicKeyTypeZ_1get_1a(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_PublicKeyTypeZ* owner_conv = (LDKC2Tuple_PublicKeyTypeZ*)(owner & ~1);
+       LDKC2Tuple_PublicKeyTypeZ* owner_conv = (LDKC2Tuple_PublicKeyTypeZ*)untag_ptr(owner);
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, C2Tuple_PublicKeyTypeZ_get_a(owner_conv).compressed_form);
        return ret_arr;
@@ -8621,10 +7935,10 @@ static inline struct LDKType C2Tuple_PublicKeyTypeZ_get_b(LDKC2Tuple_PublicKeyTy
        return Type_clone(&owner->b);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PublicKeyTypeZ_1get_1b(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKC2Tuple_PublicKeyTypeZ* owner_conv = (LDKC2Tuple_PublicKeyTypeZ*)(owner & ~1);
+       LDKC2Tuple_PublicKeyTypeZ* owner_conv = (LDKC2Tuple_PublicKeyTypeZ*)untag_ptr(owner);
        LDKType* ret_ret = MALLOC(sizeof(LDKType), "LDKType");
        *ret_ret = C2Tuple_PublicKeyTypeZ_get_b(owner_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 static inline LDKCVec_C2Tuple_PublicKeyTypeZZ CVec_C2Tuple_PublicKeyTypeZZ_clone(const LDKCVec_C2Tuple_PublicKeyTypeZZ *orig) {
@@ -8651,10 +7965,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKCOption_1NetAddressZ_i
        CHECK(LDKCOption_NetAddressZ_None_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKCOption_1NetAddressZ_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKCOption_NetAddressZ *obj = (LDKCOption_NetAddressZ*)(ptr & ~1);
+       LDKCOption_NetAddressZ *obj = (LDKCOption_NetAddressZ*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKCOption_NetAddressZ_Some: {
-                       int64_t some_ref = ((uintptr_t)&obj->some) | 1;
+                       int64_t some_ref = tag_ptr(&obj->some, false);
                        return (*env)->NewObject(env, LDKCOption_NetAddressZ_Some_class, LDKCOption_NetAddressZ_Some_meth, some_ref);
                }
                case LDKCOption_NetAddressZ_None: {
@@ -8668,7 +7982,7 @@ CHECK(owner->result_ok);
        return CVec_u8Z_clone(&*owner->contents.result);
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1u8ZPeerHandleErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_CVec_u8ZPeerHandleErrorZ* owner_conv = (LDKCResult_CVec_u8ZPeerHandleErrorZ*)(owner & ~1);
+       LDKCResult_CVec_u8ZPeerHandleErrorZ* owner_conv = (LDKCResult_CVec_u8ZPeerHandleErrorZ*)untag_ptr(owner);
        LDKCVec_u8Z ret_var = CResult_CVec_u8ZPeerHandleErrorZ_get_ok(owner_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -8681,16 +7995,11 @@ CHECK(!owner->result_ok);
        return PeerHandleError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1u8ZPeerHandleErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_CVec_u8ZPeerHandleErrorZ* owner_conv = (LDKCResult_CVec_u8ZPeerHandleErrorZ*)(owner & ~1);
+       LDKCResult_CVec_u8ZPeerHandleErrorZ* owner_conv = (LDKCResult_CVec_u8ZPeerHandleErrorZ*)untag_ptr(owner);
        LDKPeerHandleError ret_var = CResult_CVec_u8ZPeerHandleErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -8699,7 +8008,7 @@ CHECK(owner->result_ok);
        return *owner->contents.result;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NonePeerHandleErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NonePeerHandleErrorZ* owner_conv = (LDKCResult_NonePeerHandleErrorZ*)(owner & ~1);
+       LDKCResult_NonePeerHandleErrorZ* owner_conv = (LDKCResult_NonePeerHandleErrorZ*)untag_ptr(owner);
        CResult_NonePeerHandleErrorZ_get_ok(owner_conv);
 }
 
@@ -8708,16 +8017,11 @@ CHECK(!owner->result_ok);
        return PeerHandleError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NonePeerHandleErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NonePeerHandleErrorZ* owner_conv = (LDKCResult_NonePeerHandleErrorZ*)(owner & ~1);
+       LDKCResult_NonePeerHandleErrorZ* owner_conv = (LDKCResult_NonePeerHandleErrorZ*)untag_ptr(owner);
        LDKPeerHandleError ret_var = CResult_NonePeerHandleErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -8726,7 +8030,7 @@ CHECK(owner->result_ok);
        return *owner->contents.result;
 }
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1boolPeerHandleErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_boolPeerHandleErrorZ* owner_conv = (LDKCResult_boolPeerHandleErrorZ*)(owner & ~1);
+       LDKCResult_boolPeerHandleErrorZ* owner_conv = (LDKCResult_boolPeerHandleErrorZ*)untag_ptr(owner);
        jboolean ret_conv = CResult_boolPeerHandleErrorZ_get_ok(owner_conv);
        return ret_conv;
 }
@@ -8736,16 +8040,11 @@ CHECK(!owner->result_ok);
        return PeerHandleError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1boolPeerHandleErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_boolPeerHandleErrorZ* owner_conv = (LDKCResult_boolPeerHandleErrorZ*)(owner & ~1);
+       LDKCResult_boolPeerHandleErrorZ* owner_conv = (LDKCResult_boolPeerHandleErrorZ*)untag_ptr(owner);
        LDKPeerHandleError ret_var = CResult_boolPeerHandleErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -8766,24 +8065,20 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKGraphSyncError_init (J
        CHECK(LDKGraphSyncError_LightningError_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKGraphSyncError_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKGraphSyncError *obj = (LDKGraphSyncError*)(ptr & ~1);
+       LDKGraphSyncError *obj = (LDKGraphSyncError*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKGraphSyncError_DecodeError: {
                        LDKDecodeError decode_error_var = obj->decode_error;
                        int64_t decode_error_ref = 0;
-                       CHECK((((uintptr_t)decode_error_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&decode_error_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(decode_error_var);
-                       decode_error_ref = (uintptr_t)decode_error_var.inner & ~1;
+                       decode_error_ref = tag_ptr(decode_error_var.inner, false);
                        return (*env)->NewObject(env, LDKGraphSyncError_DecodeError_class, LDKGraphSyncError_DecodeError_meth, decode_error_ref);
                }
                case LDKGraphSyncError_LightningError: {
                        LDKLightningError lightning_error_var = obj->lightning_error;
                        int64_t lightning_error_ref = 0;
-                       CHECK((((uintptr_t)lightning_error_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&lightning_error_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(lightning_error_var);
-                       lightning_error_ref = (uintptr_t)lightning_error_var.inner & ~1;
+                       lightning_error_ref = tag_ptr(lightning_error_var.inner, false);
                        return (*env)->NewObject(env, LDKGraphSyncError_LightningError_class, LDKGraphSyncError_LightningError_meth, lightning_error_ref);
                }
                default: abort();
@@ -8794,7 +8089,7 @@ CHECK(owner->result_ok);
        return *owner->contents.result;
 }
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_CResult_1u32GraphSyncErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_u32GraphSyncErrorZ* owner_conv = (LDKCResult_u32GraphSyncErrorZ*)(owner & ~1);
+       LDKCResult_u32GraphSyncErrorZ* owner_conv = (LDKCResult_u32GraphSyncErrorZ*)untag_ptr(owner);
        int32_t ret_conv = CResult_u32GraphSyncErrorZ_get_ok(owner_conv);
        return ret_conv;
 }
@@ -8804,10 +8099,10 @@ CHECK(!owner->result_ok);
        return GraphSyncError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1u32GraphSyncErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_u32GraphSyncErrorZ* owner_conv = (LDKCResult_u32GraphSyncErrorZ*)(owner & ~1);
+       LDKCResult_u32GraphSyncErrorZ* owner_conv = (LDKCResult_u32GraphSyncErrorZ*)untag_ptr(owner);
        LDKGraphSyncError *ret_copy = MALLOC(sizeof(LDKGraphSyncError), "LDKGraphSyncError");
        *ret_copy = CResult_u32GraphSyncErrorZ_get_err(owner_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -8816,10 +8111,10 @@ CHECK(owner->result_ok);
        return NetAddress_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NetAddressDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NetAddressDecodeErrorZ* owner_conv = (LDKCResult_NetAddressDecodeErrorZ*)(owner & ~1);
+       LDKCResult_NetAddressDecodeErrorZ* owner_conv = (LDKCResult_NetAddressDecodeErrorZ*)untag_ptr(owner);
        LDKNetAddress *ret_copy = MALLOC(sizeof(LDKNetAddress), "LDKNetAddress");
        *ret_copy = CResult_NetAddressDecodeErrorZ_get_ok(owner_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -8828,16 +8123,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NetAddressDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NetAddressDecodeErrorZ* owner_conv = (LDKCResult_NetAddressDecodeErrorZ*)(owner & ~1);
+       LDKCResult_NetAddressDecodeErrorZ* owner_conv = (LDKCResult_NetAddressDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_NetAddressDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -8874,16 +8164,11 @@ CHECK(owner->result_ok);
        return AcceptChannel_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1AcceptChannelDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_AcceptChannelDecodeErrorZ* owner_conv = (LDKCResult_AcceptChannelDecodeErrorZ*)(owner & ~1);
+       LDKCResult_AcceptChannelDecodeErrorZ* owner_conv = (LDKCResult_AcceptChannelDecodeErrorZ*)untag_ptr(owner);
        LDKAcceptChannel ret_var = CResult_AcceptChannelDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -8892,16 +8177,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1AcceptChannelDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_AcceptChannelDecodeErrorZ* owner_conv = (LDKCResult_AcceptChannelDecodeErrorZ*)(owner & ~1);
+       LDKCResult_AcceptChannelDecodeErrorZ* owner_conv = (LDKCResult_AcceptChannelDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_AcceptChannelDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -8910,16 +8190,11 @@ CHECK(owner->result_ok);
        return AnnouncementSignatures_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1AnnouncementSignaturesDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_AnnouncementSignaturesDecodeErrorZ* owner_conv = (LDKCResult_AnnouncementSignaturesDecodeErrorZ*)(owner & ~1);
+       LDKCResult_AnnouncementSignaturesDecodeErrorZ* owner_conv = (LDKCResult_AnnouncementSignaturesDecodeErrorZ*)untag_ptr(owner);
        LDKAnnouncementSignatures ret_var = CResult_AnnouncementSignaturesDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -8928,16 +8203,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1AnnouncementSignaturesDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_AnnouncementSignaturesDecodeErrorZ* owner_conv = (LDKCResult_AnnouncementSignaturesDecodeErrorZ*)(owner & ~1);
+       LDKCResult_AnnouncementSignaturesDecodeErrorZ* owner_conv = (LDKCResult_AnnouncementSignaturesDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_AnnouncementSignaturesDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -8946,16 +8216,11 @@ CHECK(owner->result_ok);
        return ChannelReestablish_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelReestablishDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelReestablishDecodeErrorZ* owner_conv = (LDKCResult_ChannelReestablishDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelReestablishDecodeErrorZ* owner_conv = (LDKCResult_ChannelReestablishDecodeErrorZ*)untag_ptr(owner);
        LDKChannelReestablish ret_var = CResult_ChannelReestablishDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -8964,16 +8229,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelReestablishDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelReestablishDecodeErrorZ* owner_conv = (LDKCResult_ChannelReestablishDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelReestablishDecodeErrorZ* owner_conv = (LDKCResult_ChannelReestablishDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_ChannelReestablishDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -8982,16 +8242,11 @@ CHECK(owner->result_ok);
        return ClosingSigned_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ClosingSignedDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ClosingSignedDecodeErrorZ* owner_conv = (LDKCResult_ClosingSignedDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ClosingSignedDecodeErrorZ* owner_conv = (LDKCResult_ClosingSignedDecodeErrorZ*)untag_ptr(owner);
        LDKClosingSigned ret_var = CResult_ClosingSignedDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9000,16 +8255,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ClosingSignedDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ClosingSignedDecodeErrorZ* owner_conv = (LDKCResult_ClosingSignedDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ClosingSignedDecodeErrorZ* owner_conv = (LDKCResult_ClosingSignedDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_ClosingSignedDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9018,16 +8268,11 @@ CHECK(owner->result_ok);
        return ClosingSignedFeeRange_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ClosingSignedFeeRangeDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ClosingSignedFeeRangeDecodeErrorZ* owner_conv = (LDKCResult_ClosingSignedFeeRangeDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ClosingSignedFeeRangeDecodeErrorZ* owner_conv = (LDKCResult_ClosingSignedFeeRangeDecodeErrorZ*)untag_ptr(owner);
        LDKClosingSignedFeeRange ret_var = CResult_ClosingSignedFeeRangeDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9036,16 +8281,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ClosingSignedFeeRangeDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ClosingSignedFeeRangeDecodeErrorZ* owner_conv = (LDKCResult_ClosingSignedFeeRangeDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ClosingSignedFeeRangeDecodeErrorZ* owner_conv = (LDKCResult_ClosingSignedFeeRangeDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_ClosingSignedFeeRangeDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9054,16 +8294,11 @@ CHECK(owner->result_ok);
        return CommitmentSigned_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CommitmentSignedDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_CommitmentSignedDecodeErrorZ* owner_conv = (LDKCResult_CommitmentSignedDecodeErrorZ*)(owner & ~1);
+       LDKCResult_CommitmentSignedDecodeErrorZ* owner_conv = (LDKCResult_CommitmentSignedDecodeErrorZ*)untag_ptr(owner);
        LDKCommitmentSigned ret_var = CResult_CommitmentSignedDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9072,16 +8307,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CommitmentSignedDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_CommitmentSignedDecodeErrorZ* owner_conv = (LDKCResult_CommitmentSignedDecodeErrorZ*)(owner & ~1);
+       LDKCResult_CommitmentSignedDecodeErrorZ* owner_conv = (LDKCResult_CommitmentSignedDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_CommitmentSignedDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9090,16 +8320,11 @@ CHECK(owner->result_ok);
        return FundingCreated_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1FundingCreatedDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_FundingCreatedDecodeErrorZ* owner_conv = (LDKCResult_FundingCreatedDecodeErrorZ*)(owner & ~1);
+       LDKCResult_FundingCreatedDecodeErrorZ* owner_conv = (LDKCResult_FundingCreatedDecodeErrorZ*)untag_ptr(owner);
        LDKFundingCreated ret_var = CResult_FundingCreatedDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9108,16 +8333,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1FundingCreatedDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_FundingCreatedDecodeErrorZ* owner_conv = (LDKCResult_FundingCreatedDecodeErrorZ*)(owner & ~1);
+       LDKCResult_FundingCreatedDecodeErrorZ* owner_conv = (LDKCResult_FundingCreatedDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_FundingCreatedDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9126,16 +8346,11 @@ CHECK(owner->result_ok);
        return FundingSigned_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1FundingSignedDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_FundingSignedDecodeErrorZ* owner_conv = (LDKCResult_FundingSignedDecodeErrorZ*)(owner & ~1);
+       LDKCResult_FundingSignedDecodeErrorZ* owner_conv = (LDKCResult_FundingSignedDecodeErrorZ*)untag_ptr(owner);
        LDKFundingSigned ret_var = CResult_FundingSignedDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9144,16 +8359,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1FundingSignedDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_FundingSignedDecodeErrorZ* owner_conv = (LDKCResult_FundingSignedDecodeErrorZ*)(owner & ~1);
+       LDKCResult_FundingSignedDecodeErrorZ* owner_conv = (LDKCResult_FundingSignedDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_FundingSignedDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9162,16 +8372,11 @@ CHECK(owner->result_ok);
        return ChannelReady_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelReadyDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelReadyDecodeErrorZ* owner_conv = (LDKCResult_ChannelReadyDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelReadyDecodeErrorZ* owner_conv = (LDKCResult_ChannelReadyDecodeErrorZ*)untag_ptr(owner);
        LDKChannelReady ret_var = CResult_ChannelReadyDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9180,16 +8385,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelReadyDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelReadyDecodeErrorZ* owner_conv = (LDKCResult_ChannelReadyDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelReadyDecodeErrorZ* owner_conv = (LDKCResult_ChannelReadyDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_ChannelReadyDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9198,16 +8398,11 @@ CHECK(owner->result_ok);
        return Init_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InitDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_InitDecodeErrorZ* owner_conv = (LDKCResult_InitDecodeErrorZ*)(owner & ~1);
+       LDKCResult_InitDecodeErrorZ* owner_conv = (LDKCResult_InitDecodeErrorZ*)untag_ptr(owner);
        LDKInit ret_var = CResult_InitDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9216,16 +8411,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InitDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_InitDecodeErrorZ* owner_conv = (LDKCResult_InitDecodeErrorZ*)(owner & ~1);
+       LDKCResult_InitDecodeErrorZ* owner_conv = (LDKCResult_InitDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_InitDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9234,16 +8424,11 @@ CHECK(owner->result_ok);
        return OpenChannel_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1OpenChannelDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_OpenChannelDecodeErrorZ* owner_conv = (LDKCResult_OpenChannelDecodeErrorZ*)(owner & ~1);
+       LDKCResult_OpenChannelDecodeErrorZ* owner_conv = (LDKCResult_OpenChannelDecodeErrorZ*)untag_ptr(owner);
        LDKOpenChannel ret_var = CResult_OpenChannelDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9252,16 +8437,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1OpenChannelDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_OpenChannelDecodeErrorZ* owner_conv = (LDKCResult_OpenChannelDecodeErrorZ*)(owner & ~1);
+       LDKCResult_OpenChannelDecodeErrorZ* owner_conv = (LDKCResult_OpenChannelDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_OpenChannelDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9270,16 +8450,11 @@ CHECK(owner->result_ok);
        return RevokeAndACK_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RevokeAndACKDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_RevokeAndACKDecodeErrorZ* owner_conv = (LDKCResult_RevokeAndACKDecodeErrorZ*)(owner & ~1);
+       LDKCResult_RevokeAndACKDecodeErrorZ* owner_conv = (LDKCResult_RevokeAndACKDecodeErrorZ*)untag_ptr(owner);
        LDKRevokeAndACK ret_var = CResult_RevokeAndACKDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9288,16 +8463,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RevokeAndACKDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_RevokeAndACKDecodeErrorZ* owner_conv = (LDKCResult_RevokeAndACKDecodeErrorZ*)(owner & ~1);
+       LDKCResult_RevokeAndACKDecodeErrorZ* owner_conv = (LDKCResult_RevokeAndACKDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_RevokeAndACKDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9306,16 +8476,11 @@ CHECK(owner->result_ok);
        return Shutdown_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ShutdownDecodeErrorZ* owner_conv = (LDKCResult_ShutdownDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ShutdownDecodeErrorZ* owner_conv = (LDKCResult_ShutdownDecodeErrorZ*)untag_ptr(owner);
        LDKShutdown ret_var = CResult_ShutdownDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9324,16 +8489,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ShutdownDecodeErrorZ* owner_conv = (LDKCResult_ShutdownDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ShutdownDecodeErrorZ* owner_conv = (LDKCResult_ShutdownDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_ShutdownDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9342,16 +8502,11 @@ CHECK(owner->result_ok);
        return UpdateFailHTLC_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFailHTLCDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_UpdateFailHTLCDecodeErrorZ* owner_conv = (LDKCResult_UpdateFailHTLCDecodeErrorZ*)(owner & ~1);
+       LDKCResult_UpdateFailHTLCDecodeErrorZ* owner_conv = (LDKCResult_UpdateFailHTLCDecodeErrorZ*)untag_ptr(owner);
        LDKUpdateFailHTLC ret_var = CResult_UpdateFailHTLCDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9360,16 +8515,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFailHTLCDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_UpdateFailHTLCDecodeErrorZ* owner_conv = (LDKCResult_UpdateFailHTLCDecodeErrorZ*)(owner & ~1);
+       LDKCResult_UpdateFailHTLCDecodeErrorZ* owner_conv = (LDKCResult_UpdateFailHTLCDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_UpdateFailHTLCDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9378,16 +8528,11 @@ CHECK(owner->result_ok);
        return UpdateFailMalformedHTLC_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFailMalformedHTLCDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ* owner_conv = (LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ*)(owner & ~1);
+       LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ* owner_conv = (LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ*)untag_ptr(owner);
        LDKUpdateFailMalformedHTLC ret_var = CResult_UpdateFailMalformedHTLCDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9396,16 +8541,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFailMalformedHTLCDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ* owner_conv = (LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ*)(owner & ~1);
+       LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ* owner_conv = (LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_UpdateFailMalformedHTLCDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9414,16 +8554,11 @@ CHECK(owner->result_ok);
        return UpdateFee_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFeeDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_UpdateFeeDecodeErrorZ* owner_conv = (LDKCResult_UpdateFeeDecodeErrorZ*)(owner & ~1);
+       LDKCResult_UpdateFeeDecodeErrorZ* owner_conv = (LDKCResult_UpdateFeeDecodeErrorZ*)untag_ptr(owner);
        LDKUpdateFee ret_var = CResult_UpdateFeeDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9432,16 +8567,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFeeDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_UpdateFeeDecodeErrorZ* owner_conv = (LDKCResult_UpdateFeeDecodeErrorZ*)(owner & ~1);
+       LDKCResult_UpdateFeeDecodeErrorZ* owner_conv = (LDKCResult_UpdateFeeDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_UpdateFeeDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9450,16 +8580,11 @@ CHECK(owner->result_ok);
        return UpdateFulfillHTLC_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFulfillHTLCDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_UpdateFulfillHTLCDecodeErrorZ* owner_conv = (LDKCResult_UpdateFulfillHTLCDecodeErrorZ*)(owner & ~1);
+       LDKCResult_UpdateFulfillHTLCDecodeErrorZ* owner_conv = (LDKCResult_UpdateFulfillHTLCDecodeErrorZ*)untag_ptr(owner);
        LDKUpdateFulfillHTLC ret_var = CResult_UpdateFulfillHTLCDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9468,16 +8593,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFulfillHTLCDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_UpdateFulfillHTLCDecodeErrorZ* owner_conv = (LDKCResult_UpdateFulfillHTLCDecodeErrorZ*)(owner & ~1);
+       LDKCResult_UpdateFulfillHTLCDecodeErrorZ* owner_conv = (LDKCResult_UpdateFulfillHTLCDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_UpdateFulfillHTLCDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9486,16 +8606,11 @@ CHECK(owner->result_ok);
        return UpdateAddHTLC_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateAddHTLCDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_UpdateAddHTLCDecodeErrorZ* owner_conv = (LDKCResult_UpdateAddHTLCDecodeErrorZ*)(owner & ~1);
+       LDKCResult_UpdateAddHTLCDecodeErrorZ* owner_conv = (LDKCResult_UpdateAddHTLCDecodeErrorZ*)untag_ptr(owner);
        LDKUpdateAddHTLC ret_var = CResult_UpdateAddHTLCDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9504,16 +8619,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateAddHTLCDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_UpdateAddHTLCDecodeErrorZ* owner_conv = (LDKCResult_UpdateAddHTLCDecodeErrorZ*)(owner & ~1);
+       LDKCResult_UpdateAddHTLCDecodeErrorZ* owner_conv = (LDKCResult_UpdateAddHTLCDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_UpdateAddHTLCDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9522,16 +8632,11 @@ CHECK(owner->result_ok);
        return Ping_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PingDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PingDecodeErrorZ* owner_conv = (LDKCResult_PingDecodeErrorZ*)(owner & ~1);
+       LDKCResult_PingDecodeErrorZ* owner_conv = (LDKCResult_PingDecodeErrorZ*)untag_ptr(owner);
        LDKPing ret_var = CResult_PingDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9540,16 +8645,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PingDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PingDecodeErrorZ* owner_conv = (LDKCResult_PingDecodeErrorZ*)(owner & ~1);
+       LDKCResult_PingDecodeErrorZ* owner_conv = (LDKCResult_PingDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_PingDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9558,16 +8658,11 @@ CHECK(owner->result_ok);
        return Pong_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PongDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PongDecodeErrorZ* owner_conv = (LDKCResult_PongDecodeErrorZ*)(owner & ~1);
+       LDKCResult_PongDecodeErrorZ* owner_conv = (LDKCResult_PongDecodeErrorZ*)untag_ptr(owner);
        LDKPong ret_var = CResult_PongDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9576,16 +8671,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PongDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_PongDecodeErrorZ* owner_conv = (LDKCResult_PongDecodeErrorZ*)(owner & ~1);
+       LDKCResult_PongDecodeErrorZ* owner_conv = (LDKCResult_PongDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_PongDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9594,16 +8684,11 @@ CHECK(owner->result_ok);
        return UnsignedChannelAnnouncement_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedChannelAnnouncementDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ* owner_conv = (LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ*)(owner & ~1);
+       LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ* owner_conv = (LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ*)untag_ptr(owner);
        LDKUnsignedChannelAnnouncement ret_var = CResult_UnsignedChannelAnnouncementDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9612,16 +8697,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedChannelAnnouncementDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ* owner_conv = (LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ*)(owner & ~1);
+       LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ* owner_conv = (LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_UnsignedChannelAnnouncementDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9630,16 +8710,11 @@ CHECK(owner->result_ok);
        return ChannelAnnouncement_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelAnnouncementDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelAnnouncementDecodeErrorZ* owner_conv = (LDKCResult_ChannelAnnouncementDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelAnnouncementDecodeErrorZ* owner_conv = (LDKCResult_ChannelAnnouncementDecodeErrorZ*)untag_ptr(owner);
        LDKChannelAnnouncement ret_var = CResult_ChannelAnnouncementDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9648,16 +8723,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelAnnouncementDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelAnnouncementDecodeErrorZ* owner_conv = (LDKCResult_ChannelAnnouncementDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelAnnouncementDecodeErrorZ* owner_conv = (LDKCResult_ChannelAnnouncementDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_ChannelAnnouncementDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9666,16 +8736,11 @@ CHECK(owner->result_ok);
        return UnsignedChannelUpdate_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedChannelUpdateDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_UnsignedChannelUpdateDecodeErrorZ* owner_conv = (LDKCResult_UnsignedChannelUpdateDecodeErrorZ*)(owner & ~1);
+       LDKCResult_UnsignedChannelUpdateDecodeErrorZ* owner_conv = (LDKCResult_UnsignedChannelUpdateDecodeErrorZ*)untag_ptr(owner);
        LDKUnsignedChannelUpdate ret_var = CResult_UnsignedChannelUpdateDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9684,16 +8749,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedChannelUpdateDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_UnsignedChannelUpdateDecodeErrorZ* owner_conv = (LDKCResult_UnsignedChannelUpdateDecodeErrorZ*)(owner & ~1);
+       LDKCResult_UnsignedChannelUpdateDecodeErrorZ* owner_conv = (LDKCResult_UnsignedChannelUpdateDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_UnsignedChannelUpdateDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9702,16 +8762,11 @@ CHECK(owner->result_ok);
        return ChannelUpdate_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelUpdateDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelUpdateDecodeErrorZ* owner_conv = (LDKCResult_ChannelUpdateDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelUpdateDecodeErrorZ* owner_conv = (LDKCResult_ChannelUpdateDecodeErrorZ*)untag_ptr(owner);
        LDKChannelUpdate ret_var = CResult_ChannelUpdateDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9720,16 +8775,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelUpdateDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ChannelUpdateDecodeErrorZ* owner_conv = (LDKCResult_ChannelUpdateDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ChannelUpdateDecodeErrorZ* owner_conv = (LDKCResult_ChannelUpdateDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_ChannelUpdateDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9738,16 +8788,11 @@ CHECK(owner->result_ok);
        return ErrorMessage_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ErrorMessageDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ErrorMessageDecodeErrorZ* owner_conv = (LDKCResult_ErrorMessageDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ErrorMessageDecodeErrorZ* owner_conv = (LDKCResult_ErrorMessageDecodeErrorZ*)untag_ptr(owner);
        LDKErrorMessage ret_var = CResult_ErrorMessageDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9756,16 +8801,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ErrorMessageDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ErrorMessageDecodeErrorZ* owner_conv = (LDKCResult_ErrorMessageDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ErrorMessageDecodeErrorZ* owner_conv = (LDKCResult_ErrorMessageDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_ErrorMessageDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9774,16 +8814,11 @@ CHECK(owner->result_ok);
        return WarningMessage_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1WarningMessageDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_WarningMessageDecodeErrorZ* owner_conv = (LDKCResult_WarningMessageDecodeErrorZ*)(owner & ~1);
+       LDKCResult_WarningMessageDecodeErrorZ* owner_conv = (LDKCResult_WarningMessageDecodeErrorZ*)untag_ptr(owner);
        LDKWarningMessage ret_var = CResult_WarningMessageDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9792,16 +8827,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1WarningMessageDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_WarningMessageDecodeErrorZ* owner_conv = (LDKCResult_WarningMessageDecodeErrorZ*)(owner & ~1);
+       LDKCResult_WarningMessageDecodeErrorZ* owner_conv = (LDKCResult_WarningMessageDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_WarningMessageDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9810,16 +8840,11 @@ CHECK(owner->result_ok);
        return UnsignedNodeAnnouncement_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedNodeAnnouncementDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ* owner_conv = (LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ*)(owner & ~1);
+       LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ* owner_conv = (LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ*)untag_ptr(owner);
        LDKUnsignedNodeAnnouncement ret_var = CResult_UnsignedNodeAnnouncementDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9828,16 +8853,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedNodeAnnouncementDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ* owner_conv = (LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ*)(owner & ~1);
+       LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ* owner_conv = (LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_UnsignedNodeAnnouncementDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9846,16 +8866,11 @@ CHECK(owner->result_ok);
        return NodeAnnouncement_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAnnouncementDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NodeAnnouncementDecodeErrorZ* owner_conv = (LDKCResult_NodeAnnouncementDecodeErrorZ*)(owner & ~1);
+       LDKCResult_NodeAnnouncementDecodeErrorZ* owner_conv = (LDKCResult_NodeAnnouncementDecodeErrorZ*)untag_ptr(owner);
        LDKNodeAnnouncement ret_var = CResult_NodeAnnouncementDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9864,16 +8879,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAnnouncementDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_NodeAnnouncementDecodeErrorZ* owner_conv = (LDKCResult_NodeAnnouncementDecodeErrorZ*)(owner & ~1);
+       LDKCResult_NodeAnnouncementDecodeErrorZ* owner_conv = (LDKCResult_NodeAnnouncementDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_NodeAnnouncementDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9882,16 +8892,11 @@ CHECK(owner->result_ok);
        return QueryShortChannelIds_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1QueryShortChannelIdsDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_QueryShortChannelIdsDecodeErrorZ* owner_conv = (LDKCResult_QueryShortChannelIdsDecodeErrorZ*)(owner & ~1);
+       LDKCResult_QueryShortChannelIdsDecodeErrorZ* owner_conv = (LDKCResult_QueryShortChannelIdsDecodeErrorZ*)untag_ptr(owner);
        LDKQueryShortChannelIds ret_var = CResult_QueryShortChannelIdsDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9900,16 +8905,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1QueryShortChannelIdsDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_QueryShortChannelIdsDecodeErrorZ* owner_conv = (LDKCResult_QueryShortChannelIdsDecodeErrorZ*)(owner & ~1);
+       LDKCResult_QueryShortChannelIdsDecodeErrorZ* owner_conv = (LDKCResult_QueryShortChannelIdsDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_QueryShortChannelIdsDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9918,16 +8918,11 @@ CHECK(owner->result_ok);
        return ReplyShortChannelIdsEnd_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ReplyShortChannelIdsEndDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ* owner_conv = (LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ* owner_conv = (LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ*)untag_ptr(owner);
        LDKReplyShortChannelIdsEnd ret_var = CResult_ReplyShortChannelIdsEndDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9936,16 +8931,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ReplyShortChannelIdsEndDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ* owner_conv = (LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ* owner_conv = (LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_ReplyShortChannelIdsEndDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9954,16 +8944,11 @@ CHECK(owner->result_ok);
        return QueryChannelRange_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1QueryChannelRangeDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_QueryChannelRangeDecodeErrorZ* owner_conv = (LDKCResult_QueryChannelRangeDecodeErrorZ*)(owner & ~1);
+       LDKCResult_QueryChannelRangeDecodeErrorZ* owner_conv = (LDKCResult_QueryChannelRangeDecodeErrorZ*)untag_ptr(owner);
        LDKQueryChannelRange ret_var = CResult_QueryChannelRangeDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9972,16 +8957,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1QueryChannelRangeDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_QueryChannelRangeDecodeErrorZ* owner_conv = (LDKCResult_QueryChannelRangeDecodeErrorZ*)(owner & ~1);
+       LDKCResult_QueryChannelRangeDecodeErrorZ* owner_conv = (LDKCResult_QueryChannelRangeDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_QueryChannelRangeDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -9990,16 +8970,11 @@ CHECK(owner->result_ok);
        return ReplyChannelRange_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ReplyChannelRangeDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ReplyChannelRangeDecodeErrorZ* owner_conv = (LDKCResult_ReplyChannelRangeDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ReplyChannelRangeDecodeErrorZ* owner_conv = (LDKCResult_ReplyChannelRangeDecodeErrorZ*)untag_ptr(owner);
        LDKReplyChannelRange ret_var = CResult_ReplyChannelRangeDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -10008,16 +8983,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ReplyChannelRangeDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_ReplyChannelRangeDecodeErrorZ* owner_conv = (LDKCResult_ReplyChannelRangeDecodeErrorZ*)(owner & ~1);
+       LDKCResult_ReplyChannelRangeDecodeErrorZ* owner_conv = (LDKCResult_ReplyChannelRangeDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_ReplyChannelRangeDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -10026,16 +8996,11 @@ CHECK(owner->result_ok);
        return GossipTimestampFilter_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1GossipTimestampFilterDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_GossipTimestampFilterDecodeErrorZ* owner_conv = (LDKCResult_GossipTimestampFilterDecodeErrorZ*)(owner & ~1);
+       LDKCResult_GossipTimestampFilterDecodeErrorZ* owner_conv = (LDKCResult_GossipTimestampFilterDecodeErrorZ*)untag_ptr(owner);
        LDKGossipTimestampFilter ret_var = CResult_GossipTimestampFilterDecodeErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -10044,16 +9009,11 @@ CHECK(!owner->result_ok);
        return DecodeError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1GossipTimestampFilterDecodeErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_GossipTimestampFilterDecodeErrorZ* owner_conv = (LDKCResult_GossipTimestampFilterDecodeErrorZ*)(owner & ~1);
+       LDKCResult_GossipTimestampFilterDecodeErrorZ* owner_conv = (LDKCResult_GossipTimestampFilterDecodeErrorZ*)untag_ptr(owner);
        LDKDecodeError ret_var = CResult_GossipTimestampFilterDecodeErrorZ_get_err(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -10081,7 +9041,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKSignOrCreationError_in
        CHECK(LDKSignOrCreationError_CreationError_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKSignOrCreationError_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKSignOrCreationError *obj = (LDKSignOrCreationError*)(ptr & ~1);
+       LDKSignOrCreationError *obj = (LDKSignOrCreationError*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKSignOrCreationError_SignError: {
                        return (*env)->NewObject(env, LDKSignOrCreationError_SignError_class, LDKSignOrCreationError_SignError_meth);
@@ -10098,16 +9058,11 @@ CHECK(owner->result_ok);
        return Invoice_clone(&*owner->contents.result);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceSignOrCreationErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_InvoiceSignOrCreationErrorZ* owner_conv = (LDKCResult_InvoiceSignOrCreationErrorZ*)(owner & ~1);
+       LDKCResult_InvoiceSignOrCreationErrorZ* owner_conv = (LDKCResult_InvoiceSignOrCreationErrorZ*)untag_ptr(owner);
        LDKInvoice ret_var = CResult_InvoiceSignOrCreationErrorZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -10116,10 +9071,10 @@ CHECK(!owner->result_ok);
        return SignOrCreationError_clone(&*owner->contents.err);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceSignOrCreationErrorZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_InvoiceSignOrCreationErrorZ* owner_conv = (LDKCResult_InvoiceSignOrCreationErrorZ*)(owner & ~1);
+       LDKCResult_InvoiceSignOrCreationErrorZ* owner_conv = (LDKCResult_InvoiceSignOrCreationErrorZ*)untag_ptr(owner);
        LDKSignOrCreationError *ret_copy = MALLOC(sizeof(LDKSignOrCreationError), "LDKSignOrCreationError");
        *ret_copy = CResult_InvoiceSignOrCreationErrorZ_get_err(owner_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -10183,13 +9138,8 @@ LDKCOption_C2Tuple_usizeTransactionZZ register_output_LDKFilter_jcall(const void
        }
        LDKWatchedOutput output_var = output;
        int64_t output_ref = 0;
-       CHECK((((uintptr_t)output_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&output_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(output_var);
-       output_ref = (uintptr_t)output_var.inner;
-       if (output_var.is_owned) {
-               output_ref |= 1;
-       }
+       output_ref = tag_ptr(output_var.inner, output_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        uint64_t ret = (*env)->CallLongMethod(env, obj, j_calls->register_output_meth, output_ref);
@@ -10197,10 +9147,10 @@ LDKCOption_C2Tuple_usizeTransactionZZ register_output_LDKFilter_jcall(const void
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to register_output in LDKFilter from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCOption_C2Tuple_usizeTransactionZZ ret_conv = *(LDKCOption_C2Tuple_usizeTransactionZZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -10233,11 +9183,11 @@ static inline LDKFilter LDKFilter_init (JNIEnv *env, jclass clz, jobject o) {
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKFilter_1new(JNIEnv *env, jclass clz, jobject o) {
        LDKFilter *res_ptr = MALLOC(sizeof(LDKFilter), "LDKFilter");
        *res_ptr = LDKFilter_init(env, clz, o);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Filter_1register_1tx(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray txid, int8_tArray script_pubkey) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKFilter* this_arg_conv = (LDKFilter*)this_arg_ptr;
        unsigned char txid_arr[32];
        CHECK((*env)->GetArrayLength(env, txid) == 32);
@@ -10251,17 +9201,17 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Filter_1register_1tx(JNIEnv *e
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Filter_1register_1output(JNIEnv *env, jclass clz, int64_t this_arg, int64_t output) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKFilter* this_arg_conv = (LDKFilter*)this_arg_ptr;
        LDKWatchedOutput output_conv;
-       output_conv.inner = (void*)(output & (~1));
-       output_conv.is_owned = (output & 1) || (output == 0);
+       output_conv.inner = untag_ptr(output);
+       output_conv.is_owned = ptr_is_owned(output);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(output_conv);
        output_conv = WatchedOutput_clone(&output_conv);
        LDKCOption_C2Tuple_usizeTransactionZZ *ret_copy = MALLOC(sizeof(LDKCOption_C2Tuple_usizeTransactionZZ), "LDKCOption_C2Tuple_usizeTransactionZZ");
        *ret_copy = (this_arg_conv->register_output)(this_arg_conv->this_arg, output_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -10282,7 +9232,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKCOption_1FilterZ_init
        CHECK(LDKCOption_FilterZ_None_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKCOption_1FilterZ_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKCOption_FilterZ *obj = (LDKCOption_FilterZ*)(ptr & ~1);
+       LDKCOption_FilterZ *obj = (LDKCOption_FilterZ*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKCOption_FilterZ_Some: {
                        LDKFilter* some_ret = MALLOC(sizeof(LDKFilter), "LDKFilter");
@@ -10292,7 +9242,7 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKCOption_1FilterZ_1ref_1f
                                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                                LDKFilter_JCalls_cloned(&(*some_ret));
                        }
-                       return (*env)->NewObject(env, LDKCOption_FilterZ_Some_class, LDKCOption_FilterZ_Some_meth, (int64_t)some_ret);
+                       return (*env)->NewObject(env, LDKCOption_FilterZ_Some_class, LDKCOption_FilterZ_Some_meth, tag_ptr(some_ret, true));
                }
                case LDKCOption_FilterZ_None: {
                        return (*env)->NewObject(env, LDKCOption_FilterZ_None_class, LDKCOption_FilterZ_None_meth);
@@ -10305,13 +9255,11 @@ CHECK(owner->result_ok);
        return &*owner->contents.result;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1LockedChannelMonitorNoneZ_1get_1ok(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_LockedChannelMonitorNoneZ* owner_conv = (LDKCResult_LockedChannelMonitorNoneZ*)(owner & ~1);
+       LDKCResult_LockedChannelMonitorNoneZ* owner_conv = (LDKCResult_LockedChannelMonitorNoneZ*)untag_ptr(owner);
        LDKLockedChannelMonitor ret_var = *CResult_LockedChannelMonitorNoneZ_get_ok(owner_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner & ~1;
+       ret_ref = tag_ptr(ret_var.inner, false);
        return ret_ref;
 }
 
@@ -10320,7 +9268,7 @@ CHECK(!owner->result_ok);
        return *owner->contents.err;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1LockedChannelMonitorNoneZ_1get_1err(JNIEnv *env, jclass clz, int64_t owner) {
-       LDKCResult_LockedChannelMonitorNoneZ* owner_conv = (LDKCResult_LockedChannelMonitorNoneZ*)(owner & ~1);
+       LDKCResult_LockedChannelMonitorNoneZ* owner_conv = (LDKCResult_LockedChannelMonitorNoneZ*)untag_ptr(owner);
        CResult_LockedChannelMonitorNoneZ_get_err(owner_conv);
 }
 
@@ -10379,10 +9327,10 @@ LDKCVec_MessageSendEventZ get_and_clear_pending_msg_events_LDKMessageSendEventsP
        int64_t* ret_vals = (*env)->GetLongArrayElements (env, ret, NULL);
        for (size_t s = 0; s < ret_constr.datalen; s++) {
                int64_t ret_conv_18 = ret_vals[s];
-               void* ret_conv_18_ptr = (void*)(((uintptr_t)ret_conv_18) & ~1);
+               void* ret_conv_18_ptr = untag_ptr(ret_conv_18);
                CHECK_ACCESS(ret_conv_18_ptr);
                LDKMessageSendEvent ret_conv_18_conv = *(LDKMessageSendEvent*)(ret_conv_18_ptr);
-               FREE((void*)ret_conv_18);
+               FREE(untag_ptr(ret_conv_18));
                ret_constr.data[s] = ret_conv_18_conv;
        }
        (*env)->ReleaseLongArrayElements(env, ret, ret_vals, 0);
@@ -10415,11 +9363,11 @@ static inline LDKMessageSendEventsProvider LDKMessageSendEventsProvider_init (JN
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKMessageSendEventsProvider_1new(JNIEnv *env, jclass clz, jobject o) {
        LDKMessageSendEventsProvider *res_ptr = MALLOC(sizeof(LDKMessageSendEventsProvider), "LDKMessageSendEventsProvider");
        *res_ptr = LDKMessageSendEventsProvider_init(env, clz, o);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_MessageSendEventsProvider_1get_1and_1clear_1pending_1msg_1events(JNIEnv *env, jclass clz, int64_t this_arg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKMessageSendEventsProvider* this_arg_conv = (LDKMessageSendEventsProvider*)this_arg_ptr;
        LDKCVec_MessageSendEventZ ret_var = (this_arg_conv->get_and_clear_pending_msg_events)(this_arg_conv->this_arg);
        int64_tArray ret_arr = NULL;
@@ -10428,7 +9376,7 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_MessageSendEventsProvi
        for (size_t s = 0; s < ret_var.datalen; s++) {
                LDKMessageSendEvent *ret_conv_18_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
                *ret_conv_18_copy = ret_var.data[s];
-               int64_t ret_conv_18_ref = (uintptr_t)ret_conv_18_copy;
+               int64_t ret_conv_18_ref = tag_ptr(ret_conv_18_copy, true);
                ret_arr_ptr[s] = ret_conv_18_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
@@ -10470,9 +9418,10 @@ void handle_event_LDKEventHandler_jcall(const void* this_arg, const LDKEvent * e
        }
        LDKEvent *ret_event = MALLOC(sizeof(LDKEvent), "LDKEvent ret conversion");
        *ret_event = Event_clone(event);
+       int64_t ref_event = tag_ptr(ret_event, true);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
-       (*env)->CallVoidMethod(env, obj, j_calls->handle_event_meth, (int64_t)ret_event);
+       (*env)->CallVoidMethod(env, obj, j_calls->handle_event_meth, ref_event);
        if (UNLIKELY((*env)->ExceptionCheck(env))) {
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to handle_event in LDKEventHandler from rust threw an exception.");
@@ -10505,13 +9454,13 @@ static inline LDKEventHandler LDKEventHandler_init (JNIEnv *env, jclass clz, job
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKEventHandler_1new(JNIEnv *env, jclass clz, jobject o) {
        LDKEventHandler *res_ptr = MALLOC(sizeof(LDKEventHandler), "LDKEventHandler");
        *res_ptr = LDKEventHandler_init(env, clz, o);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_EventHandler_1handle_1event(JNIEnv *env, jclass clz, int64_t this_arg, int64_t event) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKEventHandler* this_arg_conv = (LDKEventHandler*)this_arg_ptr;
-       LDKEvent* event_conv = (LDKEvent*)event;
+       LDKEvent* event_conv = (LDKEvent*)untag_ptr(event);
        (this_arg_conv->handle_event)(this_arg_conv->this_arg, event_conv);
 }
 
@@ -10551,7 +9500,7 @@ void process_pending_events_LDKEventsProvider_jcall(const void* this_arg, LDKEve
        *handler_ret = handler;
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
-       (*env)->CallVoidMethod(env, obj, j_calls->process_pending_events_meth, (int64_t)handler_ret);
+       (*env)->CallVoidMethod(env, obj, j_calls->process_pending_events_meth, tag_ptr(handler_ret, true));
        if (UNLIKELY((*env)->ExceptionCheck(env))) {
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to process_pending_events in LDKEventsProvider from rust threw an exception.");
@@ -10584,13 +9533,13 @@ static inline LDKEventsProvider LDKEventsProvider_init (JNIEnv *env, jclass clz,
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKEventsProvider_1new(JNIEnv *env, jclass clz, jobject o) {
        LDKEventsProvider *res_ptr = MALLOC(sizeof(LDKEventsProvider), "LDKEventsProvider");
        *res_ptr = LDKEventsProvider_init(env, clz, o);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_EventsProvider_1process_1pending_1events(JNIEnv *env, jclass clz, int64_t this_arg, int64_t handler) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKEventsProvider* this_arg_conv = (LDKEventsProvider*)this_arg_ptr;
-       void* handler_ptr = (void*)(((uintptr_t)handler) & ~1);
+       void* handler_ptr = untag_ptr(handler);
        CHECK_ACCESS(handler_ptr);
        LDKEventHandler handler_conv = *(LDKEventHandler*)(handler_ptr);
        if (handler_conv.free == LDKEventHandler_JCalls_free) {
@@ -10641,32 +9590,17 @@ uint64_t channel_penalty_msat_LDKScore_jcall(const void* this_arg, uint64_t shor
        LDKNodeId source_var = *source;
        int64_t source_ref = 0;
        source_var = NodeId_clone(&source_var);
-       CHECK((((uintptr_t)source_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&source_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(source_var);
-       source_ref = (uintptr_t)source_var.inner;
-       if (source_var.is_owned) {
-               source_ref |= 1;
-       }
+       source_ref = tag_ptr(source_var.inner, source_var.is_owned);
        LDKNodeId target_var = *target;
        int64_t target_ref = 0;
        target_var = NodeId_clone(&target_var);
-       CHECK((((uintptr_t)target_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&target_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(target_var);
-       target_ref = (uintptr_t)target_var.inner;
-       if (target_var.is_owned) {
-               target_ref |= 1;
-       }
+       target_ref = tag_ptr(target_var.inner, target_var.is_owned);
        LDKChannelUsage usage_var = usage;
        int64_t usage_ref = 0;
-       CHECK((((uintptr_t)usage_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&usage_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(usage_var);
-       usage_ref = (uintptr_t)usage_var.inner;
-       if (usage_var.is_owned) {
-               usage_ref |= 1;
-       }
+       usage_ref = tag_ptr(usage_var.inner, usage_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        int64_t ret = (*env)->CallLongMethod(env, obj, j_calls->channel_penalty_msat_meth, short_channel_id_conv, source_ref, target_ref, usage_ref);
@@ -10695,13 +9629,8 @@ void payment_path_failed_LDKScore_jcall(void* this_arg, LDKCVec_RouteHopZ path,
        for (size_t k = 0; k < path_var.datalen; k++) {
                LDKRouteHop path_conv_10_var = path_var.data[k];
                int64_t path_conv_10_ref = 0;
-               CHECK((((uintptr_t)path_conv_10_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&path_conv_10_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(path_conv_10_var);
-               path_conv_10_ref = (uintptr_t)path_conv_10_var.inner;
-               if (path_conv_10_var.is_owned) {
-                       path_conv_10_ref |= 1;
-               }
+               path_conv_10_ref = tag_ptr(path_conv_10_var.inner, path_conv_10_var.is_owned);
                path_arr_ptr[k] = path_conv_10_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, path_arr, path_arr_ptr, 0);
@@ -10734,13 +9663,8 @@ void payment_path_successful_LDKScore_jcall(void* this_arg, LDKCVec_RouteHopZ pa
        for (size_t k = 0; k < path_var.datalen; k++) {
                LDKRouteHop path_conv_10_var = path_var.data[k];
                int64_t path_conv_10_ref = 0;
-               CHECK((((uintptr_t)path_conv_10_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&path_conv_10_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(path_conv_10_var);
-               path_conv_10_ref = (uintptr_t)path_conv_10_var.inner;
-               if (path_conv_10_var.is_owned) {
-                       path_conv_10_ref |= 1;
-               }
+               path_conv_10_ref = tag_ptr(path_conv_10_var.inner, path_conv_10_var.is_owned);
                path_arr_ptr[k] = path_conv_10_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, path_arr, path_arr_ptr, 0);
@@ -10772,13 +9696,8 @@ void probe_failed_LDKScore_jcall(void* this_arg, LDKCVec_RouteHopZ path, uint64_
        for (size_t k = 0; k < path_var.datalen; k++) {
                LDKRouteHop path_conv_10_var = path_var.data[k];
                int64_t path_conv_10_ref = 0;
-               CHECK((((uintptr_t)path_conv_10_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&path_conv_10_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(path_conv_10_var);
-               path_conv_10_ref = (uintptr_t)path_conv_10_var.inner;
-               if (path_conv_10_var.is_owned) {
-                       path_conv_10_ref |= 1;
-               }
+               path_conv_10_ref = tag_ptr(path_conv_10_var.inner, path_conv_10_var.is_owned);
                path_arr_ptr[k] = path_conv_10_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, path_arr, path_arr_ptr, 0);
@@ -10811,13 +9730,8 @@ void probe_successful_LDKScore_jcall(void* this_arg, LDKCVec_RouteHopZ path) {
        for (size_t k = 0; k < path_var.datalen; k++) {
                LDKRouteHop path_conv_10_var = path_var.data[k];
                int64_t path_conv_10_ref = 0;
-               CHECK((((uintptr_t)path_conv_10_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&path_conv_10_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(path_conv_10_var);
-               path_conv_10_ref = (uintptr_t)path_conv_10_var.inner;
-               if (path_conv_10_var.is_owned) {
-                       path_conv_10_ref |= 1;
-               }
+               path_conv_10_ref = tag_ptr(path_conv_10_var.inner, path_conv_10_var.is_owned);
                path_arr_ptr[k] = path_conv_10_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, path_arr, path_arr_ptr, 0);
@@ -10897,23 +9811,25 @@ static inline LDKScore LDKScore_init (JNIEnv *env, jclass clz, jobject o) {
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKScore_1new(JNIEnv *env, jclass clz, jobject o) {
        LDKScore *res_ptr = MALLOC(sizeof(LDKScore), "LDKScore");
        *res_ptr = LDKScore_init(env, clz, o);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Score_1channel_1penalty_1msat(JNIEnv *env, jclass clz, int64_t this_arg, int64_t short_channel_id, int64_t source, int64_t target, int64_t usage) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKScore* this_arg_conv = (LDKScore*)this_arg_ptr;
        LDKNodeId source_conv;
-       source_conv.inner = (void*)(source & (~1));
-       source_conv.is_owned = false;
+       source_conv.inner = untag_ptr(source);
+       source_conv.is_owned = ptr_is_owned(source);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(source_conv);
+       source_conv.is_owned = false;
        LDKNodeId target_conv;
-       target_conv.inner = (void*)(target & (~1));
-       target_conv.is_owned = false;
+       target_conv.inner = untag_ptr(target);
+       target_conv.is_owned = ptr_is_owned(target);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(target_conv);
+       target_conv.is_owned = false;
        LDKChannelUsage usage_conv;
-       usage_conv.inner = (void*)(usage & (~1));
-       usage_conv.is_owned = (usage & 1) || (usage == 0);
+       usage_conv.inner = untag_ptr(usage);
+       usage_conv.is_owned = ptr_is_owned(usage);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(usage_conv);
        usage_conv = ChannelUsage_clone(&usage_conv);
        int64_t ret_conv = (this_arg_conv->channel_penalty_msat)(this_arg_conv->this_arg, short_channel_id, &source_conv, &target_conv, usage_conv);
@@ -10921,8 +9837,8 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Score_1channel_1penalty_1ms
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Score_1payment_1path_1failed(JNIEnv *env, jclass clz, int64_t this_arg, int64_tArray path, int64_t short_channel_id) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKScore* this_arg_conv = (LDKScore*)this_arg_ptr;
        LDKCVec_RouteHopZ path_constr;
        path_constr.datalen = (*env)->GetArrayLength(env, path);
@@ -10934,8 +9850,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Score_1payment_1path_1failed(J
        for (size_t k = 0; k < path_constr.datalen; k++) {
                int64_t path_conv_10 = path_vals[k];
                LDKRouteHop path_conv_10_conv;
-               path_conv_10_conv.inner = (void*)(path_conv_10 & (~1));
-               path_conv_10_conv.is_owned = (path_conv_10 & 1) || (path_conv_10 == 0);
+               path_conv_10_conv.inner = untag_ptr(path_conv_10);
+               path_conv_10_conv.is_owned = ptr_is_owned(path_conv_10);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(path_conv_10_conv);
                path_conv_10_conv = RouteHop_clone(&path_conv_10_conv);
                path_constr.data[k] = path_conv_10_conv;
@@ -10945,8 +9861,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Score_1payment_1path_1failed(J
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Score_1payment_1path_1successful(JNIEnv *env, jclass clz, int64_t this_arg, int64_tArray path) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKScore* this_arg_conv = (LDKScore*)this_arg_ptr;
        LDKCVec_RouteHopZ path_constr;
        path_constr.datalen = (*env)->GetArrayLength(env, path);
@@ -10958,8 +9874,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Score_1payment_1path_1successf
        for (size_t k = 0; k < path_constr.datalen; k++) {
                int64_t path_conv_10 = path_vals[k];
                LDKRouteHop path_conv_10_conv;
-               path_conv_10_conv.inner = (void*)(path_conv_10 & (~1));
-               path_conv_10_conv.is_owned = (path_conv_10 & 1) || (path_conv_10 == 0);
+               path_conv_10_conv.inner = untag_ptr(path_conv_10);
+               path_conv_10_conv.is_owned = ptr_is_owned(path_conv_10);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(path_conv_10_conv);
                path_conv_10_conv = RouteHop_clone(&path_conv_10_conv);
                path_constr.data[k] = path_conv_10_conv;
@@ -10969,8 +9885,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Score_1payment_1path_1successf
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Score_1probe_1failed(JNIEnv *env, jclass clz, int64_t this_arg, int64_tArray path, int64_t short_channel_id) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKScore* this_arg_conv = (LDKScore*)this_arg_ptr;
        LDKCVec_RouteHopZ path_constr;
        path_constr.datalen = (*env)->GetArrayLength(env, path);
@@ -10982,8 +9898,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Score_1probe_1failed(JNIEnv *e
        for (size_t k = 0; k < path_constr.datalen; k++) {
                int64_t path_conv_10 = path_vals[k];
                LDKRouteHop path_conv_10_conv;
-               path_conv_10_conv.inner = (void*)(path_conv_10 & (~1));
-               path_conv_10_conv.is_owned = (path_conv_10 & 1) || (path_conv_10 == 0);
+               path_conv_10_conv.inner = untag_ptr(path_conv_10);
+               path_conv_10_conv.is_owned = ptr_is_owned(path_conv_10);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(path_conv_10_conv);
                path_conv_10_conv = RouteHop_clone(&path_conv_10_conv);
                path_constr.data[k] = path_conv_10_conv;
@@ -10993,8 +9909,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Score_1probe_1failed(JNIEnv *e
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Score_1probe_1successful(JNIEnv *env, jclass clz, int64_t this_arg, int64_tArray path) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKScore* this_arg_conv = (LDKScore*)this_arg_ptr;
        LDKCVec_RouteHopZ path_constr;
        path_constr.datalen = (*env)->GetArrayLength(env, path);
@@ -11006,8 +9922,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Score_1probe_1successful(JNIEn
        for (size_t k = 0; k < path_constr.datalen; k++) {
                int64_t path_conv_10 = path_vals[k];
                LDKRouteHop path_conv_10_conv;
-               path_conv_10_conv.inner = (void*)(path_conv_10 & (~1));
-               path_conv_10_conv.is_owned = (path_conv_10 & 1) || (path_conv_10 == 0);
+               path_conv_10_conv.inner = untag_ptr(path_conv_10);
+               path_conv_10_conv.is_owned = ptr_is_owned(path_conv_10);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(path_conv_10_conv);
                path_conv_10_conv = RouteHop_clone(&path_conv_10_conv);
                path_constr.data[k] = path_conv_10_conv;
@@ -11017,8 +9933,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Score_1probe_1successful(JNIEn
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Score_1write(JNIEnv *env, jclass clz, int64_t this_arg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKScore* this_arg_conv = (LDKScore*)this_arg_ptr;
        LDKCVec_u8Z ret_var = (this_arg_conv->write)(this_arg_conv->this_arg);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
@@ -11064,13 +9980,8 @@ LDKCResult_NoneErrorZ persist_manager_LDKPersister_jcall(const void* this_arg, c
        LDKChannelManager channel_manager_var = *channel_manager;
        int64_t channel_manager_ref = 0;
        // WARNING: we may need a move here but no clone is available for LDKChannelManager
-       CHECK((((uintptr_t)channel_manager_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&channel_manager_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_manager_var);
-       channel_manager_ref = (uintptr_t)channel_manager_var.inner;
-       if (channel_manager_var.is_owned) {
-               channel_manager_ref |= 1;
-       }
+       channel_manager_ref = tag_ptr(channel_manager_var.inner, channel_manager_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        uint64_t ret = (*env)->CallLongMethod(env, obj, j_calls->persist_manager_meth, channel_manager_ref);
@@ -11078,10 +9989,10 @@ LDKCResult_NoneErrorZ persist_manager_LDKPersister_jcall(const void* this_arg, c
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to persist_manager in LDKPersister from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneErrorZ ret_conv = *(LDKCResult_NoneErrorZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -11099,13 +10010,8 @@ LDKCResult_NoneErrorZ persist_graph_LDKPersister_jcall(const void* this_arg, con
        LDKNetworkGraph network_graph_var = *network_graph;
        int64_t network_graph_ref = 0;
        // WARNING: we may need a move here but no clone is available for LDKNetworkGraph
-       CHECK((((uintptr_t)network_graph_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&network_graph_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(network_graph_var);
-       network_graph_ref = (uintptr_t)network_graph_var.inner;
-       if (network_graph_var.is_owned) {
-               network_graph_ref |= 1;
-       }
+       network_graph_ref = tag_ptr(network_graph_var.inner, network_graph_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        uint64_t ret = (*env)->CallLongMethod(env, obj, j_calls->persist_graph_meth, network_graph_ref);
@@ -11113,10 +10019,10 @@ LDKCResult_NoneErrorZ persist_graph_LDKPersister_jcall(const void* this_arg, con
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to persist_graph in LDKPersister from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneErrorZ ret_conv = *(LDKCResult_NoneErrorZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -11134,13 +10040,8 @@ LDKCResult_NoneErrorZ persist_scorer_LDKPersister_jcall(const void* this_arg, co
        LDKMultiThreadedLockableScore scorer_var = *scorer;
        int64_t scorer_ref = 0;
        // WARNING: we may need a move here but no clone is available for LDKMultiThreadedLockableScore
-       CHECK((((uintptr_t)scorer_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&scorer_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(scorer_var);
-       scorer_ref = (uintptr_t)scorer_var.inner;
-       if (scorer_var.is_owned) {
-               scorer_ref |= 1;
-       }
+       scorer_ref = tag_ptr(scorer_var.inner, scorer_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        uint64_t ret = (*env)->CallLongMethod(env, obj, j_calls->persist_scorer_meth, scorer_ref);
@@ -11148,10 +10049,10 @@ LDKCResult_NoneErrorZ persist_scorer_LDKPersister_jcall(const void* this_arg, co
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to persist_scorer in LDKPersister from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneErrorZ ret_conv = *(LDKCResult_NoneErrorZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -11187,45 +10088,48 @@ static inline LDKPersister LDKPersister_init (JNIEnv *env, jclass clz, jobject o
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKPersister_1new(JNIEnv *env, jclass clz, jobject o) {
        LDKPersister *res_ptr = MALLOC(sizeof(LDKPersister), "LDKPersister");
        *res_ptr = LDKPersister_init(env, clz, o);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Persister_1persist_1manager(JNIEnv *env, jclass clz, int64_t this_arg, int64_t channel_manager) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKPersister* this_arg_conv = (LDKPersister*)this_arg_ptr;
        LDKChannelManager channel_manager_conv;
-       channel_manager_conv.inner = (void*)(channel_manager & (~1));
-       channel_manager_conv.is_owned = false;
+       channel_manager_conv.inner = untag_ptr(channel_manager);
+       channel_manager_conv.is_owned = ptr_is_owned(channel_manager);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_manager_conv);
+       channel_manager_conv.is_owned = false;
        LDKCResult_NoneErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneErrorZ), "LDKCResult_NoneErrorZ");
        *ret_conv = (this_arg_conv->persist_manager)(this_arg_conv->this_arg, &channel_manager_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Persister_1persist_1graph(JNIEnv *env, jclass clz, int64_t this_arg, int64_t network_graph) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKPersister* this_arg_conv = (LDKPersister*)this_arg_ptr;
        LDKNetworkGraph network_graph_conv;
-       network_graph_conv.inner = (void*)(network_graph & (~1));
-       network_graph_conv.is_owned = false;
+       network_graph_conv.inner = untag_ptr(network_graph);
+       network_graph_conv.is_owned = ptr_is_owned(network_graph);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(network_graph_conv);
+       network_graph_conv.is_owned = false;
        LDKCResult_NoneErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneErrorZ), "LDKCResult_NoneErrorZ");
        *ret_conv = (this_arg_conv->persist_graph)(this_arg_conv->this_arg, &network_graph_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Persister_1persist_1scorer(JNIEnv *env, jclass clz, int64_t this_arg, int64_t scorer) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKPersister* this_arg_conv = (LDKPersister*)this_arg_ptr;
        LDKMultiThreadedLockableScore scorer_conv;
-       scorer_conv.inner = (void*)(scorer & (~1));
-       scorer_conv.is_owned = false;
+       scorer_conv.inner = untag_ptr(scorer);
+       scorer_conv.is_owned = ptr_is_owned(scorer);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(scorer_conv);
+       scorer_conv.is_owned = false;
        LDKCResult_NoneErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneErrorZ), "LDKCResult_NoneErrorZ");
        *ret_conv = (this_arg_conv->persist_scorer)(this_arg_conv->this_arg, &scorer_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 typedef struct LDKListen_JCalls {
@@ -11271,7 +10175,7 @@ void filtered_block_connected_LDKListen_jcall(const void* this_arg, const uint8_
        for (size_t c = 0; c < txdata_var.datalen; c++) {
                LDKC2Tuple_usizeTransactionZ* txdata_conv_28_conv = MALLOC(sizeof(LDKC2Tuple_usizeTransactionZ), "LDKC2Tuple_usizeTransactionZ");
                *txdata_conv_28_conv = txdata_var.data[c];
-               txdata_arr_ptr[c] = ((int64_t)txdata_conv_28_conv);
+               txdata_arr_ptr[c] = tag_ptr(txdata_conv_28_conv, true);
        }
        (*env)->ReleasePrimitiveArrayCritical(env, txdata_arr, txdata_arr_ptr, 0);
        FREE(txdata_var.data);
@@ -11364,11 +10268,11 @@ static inline LDKListen LDKListen_init (JNIEnv *env, jclass clz, jobject o) {
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKListen_1new(JNIEnv *env, jclass clz, jobject o) {
        LDKListen *res_ptr = MALLOC(sizeof(LDKListen), "LDKListen");
        *res_ptr = LDKListen_init(env, clz, o);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Listen_1filtered_1block_1connected(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray header, int64_tArray txdata, int32_t height) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKListen* this_arg_conv = (LDKListen*)this_arg_ptr;
        unsigned char header_arr[80];
        CHECK((*env)->GetArrayLength(env, header) == 80);
@@ -11383,10 +10287,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Listen_1filtered_1block_1conne
        int64_t* txdata_vals = (*env)->GetLongArrayElements (env, txdata, NULL);
        for (size_t c = 0; c < txdata_constr.datalen; c++) {
                int64_t txdata_conv_28 = txdata_vals[c];
-               void* txdata_conv_28_ptr = (void*)(((uintptr_t)txdata_conv_28) & ~1);
+               void* txdata_conv_28_ptr = untag_ptr(txdata_conv_28);
                CHECK_ACCESS(txdata_conv_28_ptr);
                LDKC2Tuple_usizeTransactionZ txdata_conv_28_conv = *(LDKC2Tuple_usizeTransactionZ*)(txdata_conv_28_ptr);
-               txdata_conv_28_conv = C2Tuple_usizeTransactionZ_clone((LDKC2Tuple_usizeTransactionZ*)(((uintptr_t)txdata_conv_28) & ~1));
+               txdata_conv_28_conv = C2Tuple_usizeTransactionZ_clone((LDKC2Tuple_usizeTransactionZ*)untag_ptr(txdata_conv_28));
                txdata_constr.data[c] = txdata_conv_28_conv;
        }
        (*env)->ReleaseLongArrayElements(env, txdata, txdata_vals, 0);
@@ -11394,8 +10298,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Listen_1filtered_1block_1conne
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Listen_1block_1connected(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray block, int32_t height) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKListen* this_arg_conv = (LDKListen*)this_arg_ptr;
        LDKu8slice block_ref;
        block_ref.datalen = (*env)->GetArrayLength(env, block);
@@ -11405,8 +10309,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Listen_1block_1connected(JNIEn
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Listen_1block_1disconnected(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray header, int32_t height) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKListen* this_arg_conv = (LDKListen*)this_arg_ptr;
        unsigned char header_arr[80];
        CHECK((*env)->GetArrayLength(env, header) == 80);
@@ -11459,7 +10363,7 @@ void transactions_confirmed_LDKConfirm_jcall(const void* this_arg, const uint8_t
        for (size_t c = 0; c < txdata_var.datalen; c++) {
                LDKC2Tuple_usizeTransactionZ* txdata_conv_28_conv = MALLOC(sizeof(LDKC2Tuple_usizeTransactionZ), "LDKC2Tuple_usizeTransactionZ");
                *txdata_conv_28_conv = txdata_var.data[c];
-               txdata_arr_ptr[c] = ((int64_t)txdata_conv_28_conv);
+               txdata_arr_ptr[c] = tag_ptr(txdata_conv_28_conv, true);
        }
        (*env)->ReleasePrimitiveArrayCritical(env, txdata_arr, txdata_arr_ptr, 0);
        FREE(txdata_var.data);
@@ -11587,11 +10491,11 @@ static inline LDKConfirm LDKConfirm_init (JNIEnv *env, jclass clz, jobject o) {
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKConfirm_1new(JNIEnv *env, jclass clz, jobject o) {
        LDKConfirm *res_ptr = MALLOC(sizeof(LDKConfirm), "LDKConfirm");
        *res_ptr = LDKConfirm_init(env, clz, o);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Confirm_1transactions_1confirmed(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray header, int64_tArray txdata, int32_t height) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKConfirm* this_arg_conv = (LDKConfirm*)this_arg_ptr;
        unsigned char header_arr[80];
        CHECK((*env)->GetArrayLength(env, header) == 80);
@@ -11606,10 +10510,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Confirm_1transactions_1confirm
        int64_t* txdata_vals = (*env)->GetLongArrayElements (env, txdata, NULL);
        for (size_t c = 0; c < txdata_constr.datalen; c++) {
                int64_t txdata_conv_28 = txdata_vals[c];
-               void* txdata_conv_28_ptr = (void*)(((uintptr_t)txdata_conv_28) & ~1);
+               void* txdata_conv_28_ptr = untag_ptr(txdata_conv_28);
                CHECK_ACCESS(txdata_conv_28_ptr);
                LDKC2Tuple_usizeTransactionZ txdata_conv_28_conv = *(LDKC2Tuple_usizeTransactionZ*)(txdata_conv_28_ptr);
-               txdata_conv_28_conv = C2Tuple_usizeTransactionZ_clone((LDKC2Tuple_usizeTransactionZ*)(((uintptr_t)txdata_conv_28) & ~1));
+               txdata_conv_28_conv = C2Tuple_usizeTransactionZ_clone((LDKC2Tuple_usizeTransactionZ*)untag_ptr(txdata_conv_28));
                txdata_constr.data[c] = txdata_conv_28_conv;
        }
        (*env)->ReleaseLongArrayElements(env, txdata, txdata_vals, 0);
@@ -11617,8 +10521,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Confirm_1transactions_1confirm
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Confirm_1transaction_1unconfirmed(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray txid) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKConfirm* this_arg_conv = (LDKConfirm*)this_arg_ptr;
        unsigned char txid_arr[32];
        CHECK((*env)->GetArrayLength(env, txid) == 32);
@@ -11628,8 +10532,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Confirm_1transaction_1unconfir
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Confirm_1best_1block_1updated(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray header, int32_t height) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKConfirm* this_arg_conv = (LDKConfirm*)this_arg_ptr;
        unsigned char header_arr[80];
        CHECK((*env)->GetArrayLength(env, header) == 80);
@@ -11639,8 +10543,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Confirm_1best_1block_1updated(
 }
 
 JNIEXPORT jobjectArray JNICALL Java_org_ldk_impl_bindings_Confirm_1get_1relevant_1txids(JNIEnv *env, jclass clz, int64_t this_arg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKConfirm* this_arg_conv = (LDKConfirm*)this_arg_ptr;
        LDKCVec_TxidZ ret_var = (this_arg_conv->get_relevant_txids)(this_arg_conv->this_arg);
        jobjectArray ret_arr = NULL;
@@ -11691,32 +10595,17 @@ LDKCResult_NoneChannelMonitorUpdateErrZ persist_new_channel_LDKPersist_jcall(con
        }
        LDKOutPoint channel_id_var = channel_id;
        int64_t channel_id_ref = 0;
-       CHECK((((uintptr_t)channel_id_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&channel_id_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_id_var);
-       channel_id_ref = (uintptr_t)channel_id_var.inner;
-       if (channel_id_var.is_owned) {
-               channel_id_ref |= 1;
-       }
+       channel_id_ref = tag_ptr(channel_id_var.inner, channel_id_var.is_owned);
        LDKChannelMonitor data_var = *data;
        int64_t data_ref = 0;
        data_var = ChannelMonitor_clone(&data_var);
-       CHECK((((uintptr_t)data_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&data_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(data_var);
-       data_ref = (uintptr_t)data_var.inner;
-       if (data_var.is_owned) {
-               data_ref |= 1;
-       }
+       data_ref = tag_ptr(data_var.inner, data_var.is_owned);
        LDKMonitorUpdateId update_id_var = update_id;
        int64_t update_id_ref = 0;
-       CHECK((((uintptr_t)update_id_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&update_id_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(update_id_var);
-       update_id_ref = (uintptr_t)update_id_var.inner;
-       if (update_id_var.is_owned) {
-               update_id_ref |= 1;
-       }
+       update_id_ref = tag_ptr(update_id_var.inner, update_id_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        uint64_t ret = (*env)->CallLongMethod(env, obj, j_calls->persist_new_channel_meth, channel_id_ref, data_ref, update_id_ref);
@@ -11724,10 +10613,10 @@ LDKCResult_NoneChannelMonitorUpdateErrZ persist_new_channel_LDKPersist_jcall(con
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to persist_new_channel in LDKPersist from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneChannelMonitorUpdateErrZ ret_conv = *(LDKCResult_NoneChannelMonitorUpdateErrZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -11744,44 +10633,22 @@ LDKCResult_NoneChannelMonitorUpdateErrZ update_persisted_channel_LDKPersist_jcal
        }
        LDKOutPoint channel_id_var = channel_id;
        int64_t channel_id_ref = 0;
-       CHECK((((uintptr_t)channel_id_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&channel_id_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_id_var);
-       channel_id_ref = (uintptr_t)channel_id_var.inner;
-       if (channel_id_var.is_owned) {
-               channel_id_ref |= 1;
-       }
+       channel_id_ref = tag_ptr(channel_id_var.inner, channel_id_var.is_owned);
        LDKChannelMonitorUpdate update_var = *update;
        int64_t update_ref = 0;
-       if ((uintptr_t)update_var.inner > 4096) {
-               update_var = ChannelMonitorUpdate_clone(&update_var);
-               CHECK((((uintptr_t)update_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&update_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       update_var = ChannelMonitorUpdate_clone(&update_var);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(update_var);
-               update_ref = (uintptr_t)update_var.inner;
-               if (update_var.is_owned) {
-                       update_ref |= 1;
-               }
-       }
+       update_ref = tag_ptr(update_var.inner, update_var.is_owned);
        LDKChannelMonitor data_var = *data;
        int64_t data_ref = 0;
        data_var = ChannelMonitor_clone(&data_var);
-       CHECK((((uintptr_t)data_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&data_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(data_var);
-       data_ref = (uintptr_t)data_var.inner;
-       if (data_var.is_owned) {
-               data_ref |= 1;
-       }
+       data_ref = tag_ptr(data_var.inner, data_var.is_owned);
        LDKMonitorUpdateId update_id_var = update_id;
        int64_t update_id_ref = 0;
-       CHECK((((uintptr_t)update_id_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&update_id_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(update_id_var);
-       update_id_ref = (uintptr_t)update_id_var.inner;
-       if (update_id_var.is_owned) {
-               update_id_ref |= 1;
-       }
+       update_id_ref = tag_ptr(update_id_var.inner, update_id_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        uint64_t ret = (*env)->CallLongMethod(env, obj, j_calls->update_persisted_channel_meth, channel_id_ref, update_ref, data_ref, update_id_ref);
@@ -11789,10 +10656,10 @@ LDKCResult_NoneChannelMonitorUpdateErrZ update_persisted_channel_LDKPersist_jcal
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to update_persisted_channel in LDKPersist from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneChannelMonitorUpdateErrZ ret_conv = *(LDKCResult_NoneChannelMonitorUpdateErrZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -11825,56 +10692,59 @@ static inline LDKPersist LDKPersist_init (JNIEnv *env, jclass clz, jobject o) {
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKPersist_1new(JNIEnv *env, jclass clz, jobject o) {
        LDKPersist *res_ptr = MALLOC(sizeof(LDKPersist), "LDKPersist");
        *res_ptr = LDKPersist_init(env, clz, o);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Persist_1persist_1new_1channel(JNIEnv *env, jclass clz, int64_t this_arg, int64_t channel_id, int64_t data, int64_t update_id) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKPersist* this_arg_conv = (LDKPersist*)this_arg_ptr;
        LDKOutPoint channel_id_conv;
-       channel_id_conv.inner = (void*)(channel_id & (~1));
-       channel_id_conv.is_owned = (channel_id & 1) || (channel_id == 0);
+       channel_id_conv.inner = untag_ptr(channel_id);
+       channel_id_conv.is_owned = ptr_is_owned(channel_id);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_id_conv);
        channel_id_conv = OutPoint_clone(&channel_id_conv);
        LDKChannelMonitor data_conv;
-       data_conv.inner = (void*)(data & (~1));
-       data_conv.is_owned = false;
+       data_conv.inner = untag_ptr(data);
+       data_conv.is_owned = ptr_is_owned(data);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(data_conv);
+       data_conv.is_owned = false;
        LDKMonitorUpdateId update_id_conv;
-       update_id_conv.inner = (void*)(update_id & (~1));
-       update_id_conv.is_owned = (update_id & 1) || (update_id == 0);
+       update_id_conv.inner = untag_ptr(update_id);
+       update_id_conv.is_owned = ptr_is_owned(update_id);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(update_id_conv);
        update_id_conv = MonitorUpdateId_clone(&update_id_conv);
        LDKCResult_NoneChannelMonitorUpdateErrZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneChannelMonitorUpdateErrZ), "LDKCResult_NoneChannelMonitorUpdateErrZ");
        *ret_conv = (this_arg_conv->persist_new_channel)(this_arg_conv->this_arg, channel_id_conv, &data_conv, update_id_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Persist_1update_1persisted_1channel(JNIEnv *env, jclass clz, int64_t this_arg, int64_t channel_id, int64_t update, int64_t data, int64_t update_id) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKPersist* this_arg_conv = (LDKPersist*)this_arg_ptr;
        LDKOutPoint channel_id_conv;
-       channel_id_conv.inner = (void*)(channel_id & (~1));
-       channel_id_conv.is_owned = (channel_id & 1) || (channel_id == 0);
+       channel_id_conv.inner = untag_ptr(channel_id);
+       channel_id_conv.is_owned = ptr_is_owned(channel_id);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_id_conv);
        channel_id_conv = OutPoint_clone(&channel_id_conv);
        LDKChannelMonitorUpdate update_conv;
-       update_conv.inner = (void*)(update & (~1));
-       update_conv.is_owned = false;
+       update_conv.inner = untag_ptr(update);
+       update_conv.is_owned = ptr_is_owned(update);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(update_conv);
+       update_conv.is_owned = false;
        LDKChannelMonitor data_conv;
-       data_conv.inner = (void*)(data & (~1));
-       data_conv.is_owned = false;
+       data_conv.inner = untag_ptr(data);
+       data_conv.is_owned = ptr_is_owned(data);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(data_conv);
+       data_conv.is_owned = false;
        LDKMonitorUpdateId update_id_conv;
-       update_id_conv.inner = (void*)(update_id & (~1));
-       update_id_conv.is_owned = (update_id & 1) || (update_id == 0);
+       update_id_conv.inner = untag_ptr(update_id);
+       update_id_conv.is_owned = ptr_is_owned(update_id);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(update_id_conv);
        update_id_conv = MonitorUpdateId_clone(&update_id_conv);
        LDKCResult_NoneChannelMonitorUpdateErrZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneChannelMonitorUpdateErrZ), "LDKCResult_NoneChannelMonitorUpdateErrZ");
        *ret_conv = (this_arg_conv->update_persisted_channel)(this_arg_conv->this_arg, channel_id_conv, &update_conv, &data_conv, update_id_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 typedef struct LDKChannelMessageHandler_JCalls {
@@ -11933,23 +10803,13 @@ void handle_open_channel_LDKChannelMessageHandler_jcall(const void* this_arg, LD
        (*env)->SetByteArrayRegion(env, their_node_id_arr, 0, 33, their_node_id.compressed_form);
        LDKInitFeatures their_features_var = their_features;
        int64_t their_features_ref = 0;
-       CHECK((((uintptr_t)their_features_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&their_features_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(their_features_var);
-       their_features_ref = (uintptr_t)their_features_var.inner;
-       if (their_features_var.is_owned) {
-               their_features_ref |= 1;
-       }
+       their_features_ref = tag_ptr(their_features_var.inner, their_features_var.is_owned);
        LDKOpenChannel msg_var = *msg;
        int64_t msg_ref = 0;
        msg_var = OpenChannel_clone(&msg_var);
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_open_channel_meth, their_node_id_arr, their_features_ref, msg_ref);
@@ -11974,23 +10834,13 @@ void handle_accept_channel_LDKChannelMessageHandler_jcall(const void* this_arg,
        (*env)->SetByteArrayRegion(env, their_node_id_arr, 0, 33, their_node_id.compressed_form);
        LDKInitFeatures their_features_var = their_features;
        int64_t their_features_ref = 0;
-       CHECK((((uintptr_t)their_features_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&their_features_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(their_features_var);
-       their_features_ref = (uintptr_t)their_features_var.inner;
-       if (their_features_var.is_owned) {
-               their_features_ref |= 1;
-       }
+       their_features_ref = tag_ptr(their_features_var.inner, their_features_var.is_owned);
        LDKAcceptChannel msg_var = *msg;
        int64_t msg_ref = 0;
        msg_var = AcceptChannel_clone(&msg_var);
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_accept_channel_meth, their_node_id_arr, their_features_ref, msg_ref);
@@ -12016,13 +10866,8 @@ void handle_funding_created_LDKChannelMessageHandler_jcall(const void* this_arg,
        LDKFundingCreated msg_var = *msg;
        int64_t msg_ref = 0;
        msg_var = FundingCreated_clone(&msg_var);
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_funding_created_meth, their_node_id_arr, msg_ref);
@@ -12048,13 +10893,8 @@ void handle_funding_signed_LDKChannelMessageHandler_jcall(const void* this_arg,
        LDKFundingSigned msg_var = *msg;
        int64_t msg_ref = 0;
        msg_var = FundingSigned_clone(&msg_var);
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_funding_signed_meth, their_node_id_arr, msg_ref);
@@ -12080,13 +10920,8 @@ void handle_channel_ready_LDKChannelMessageHandler_jcall(const void* this_arg, L
        LDKChannelReady msg_var = *msg;
        int64_t msg_ref = 0;
        msg_var = ChannelReady_clone(&msg_var);
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_channel_ready_meth, their_node_id_arr, msg_ref);
@@ -12112,23 +10947,13 @@ void handle_shutdown_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPub
        LDKInitFeatures their_features_var = *their_features;
        int64_t their_features_ref = 0;
        their_features_var = InitFeatures_clone(&their_features_var);
-       CHECK((((uintptr_t)their_features_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&their_features_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(their_features_var);
-       their_features_ref = (uintptr_t)their_features_var.inner;
-       if (their_features_var.is_owned) {
-               their_features_ref |= 1;
-       }
+       their_features_ref = tag_ptr(their_features_var.inner, their_features_var.is_owned);
        LDKShutdown msg_var = *msg;
        int64_t msg_ref = 0;
        msg_var = Shutdown_clone(&msg_var);
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_shutdown_meth, their_node_id_arr, their_features_ref, msg_ref);
@@ -12154,13 +10979,8 @@ void handle_closing_signed_LDKChannelMessageHandler_jcall(const void* this_arg,
        LDKClosingSigned msg_var = *msg;
        int64_t msg_ref = 0;
        msg_var = ClosingSigned_clone(&msg_var);
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_closing_signed_meth, their_node_id_arr, msg_ref);
@@ -12186,13 +11006,8 @@ void handle_update_add_htlc_LDKChannelMessageHandler_jcall(const void* this_arg,
        LDKUpdateAddHTLC msg_var = *msg;
        int64_t msg_ref = 0;
        msg_var = UpdateAddHTLC_clone(&msg_var);
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_update_add_htlc_meth, their_node_id_arr, msg_ref);
@@ -12218,13 +11033,8 @@ void handle_update_fulfill_htlc_LDKChannelMessageHandler_jcall(const void* this_
        LDKUpdateFulfillHTLC msg_var = *msg;
        int64_t msg_ref = 0;
        msg_var = UpdateFulfillHTLC_clone(&msg_var);
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_update_fulfill_htlc_meth, their_node_id_arr, msg_ref);
@@ -12250,13 +11060,8 @@ void handle_update_fail_htlc_LDKChannelMessageHandler_jcall(const void* this_arg
        LDKUpdateFailHTLC msg_var = *msg;
        int64_t msg_ref = 0;
        msg_var = UpdateFailHTLC_clone(&msg_var);
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_update_fail_htlc_meth, their_node_id_arr, msg_ref);
@@ -12282,13 +11087,8 @@ void handle_update_fail_malformed_htlc_LDKChannelMessageHandler_jcall(const void
        LDKUpdateFailMalformedHTLC msg_var = *msg;
        int64_t msg_ref = 0;
        msg_var = UpdateFailMalformedHTLC_clone(&msg_var);
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_update_fail_malformed_htlc_meth, their_node_id_arr, msg_ref);
@@ -12314,13 +11114,8 @@ void handle_commitment_signed_LDKChannelMessageHandler_jcall(const void* this_ar
        LDKCommitmentSigned msg_var = *msg;
        int64_t msg_ref = 0;
        msg_var = CommitmentSigned_clone(&msg_var);
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_commitment_signed_meth, their_node_id_arr, msg_ref);
@@ -12346,13 +11141,8 @@ void handle_revoke_and_ack_LDKChannelMessageHandler_jcall(const void* this_arg,
        LDKRevokeAndACK msg_var = *msg;
        int64_t msg_ref = 0;
        msg_var = RevokeAndACK_clone(&msg_var);
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_revoke_and_ack_meth, their_node_id_arr, msg_ref);
@@ -12378,13 +11168,8 @@ void handle_update_fee_LDKChannelMessageHandler_jcall(const void* this_arg, LDKP
        LDKUpdateFee msg_var = *msg;
        int64_t msg_ref = 0;
        msg_var = UpdateFee_clone(&msg_var);
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_update_fee_meth, their_node_id_arr, msg_ref);
@@ -12410,13 +11195,8 @@ void handle_announcement_signatures_LDKChannelMessageHandler_jcall(const void* t
        LDKAnnouncementSignatures msg_var = *msg;
        int64_t msg_ref = 0;
        msg_var = AnnouncementSignatures_clone(&msg_var);
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_announcement_signatures_meth, their_node_id_arr, msg_ref);
@@ -12465,13 +11245,8 @@ void peer_connected_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPubl
        LDKInit msg_var = *msg;
        int64_t msg_ref = 0;
        msg_var = Init_clone(&msg_var);
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->peer_connected_meth, their_node_id_arr, msg_ref);
@@ -12497,13 +11272,8 @@ void handle_channel_reestablish_LDKChannelMessageHandler_jcall(const void* this_
        LDKChannelReestablish msg_var = *msg;
        int64_t msg_ref = 0;
        msg_var = ChannelReestablish_clone(&msg_var);
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_channel_reestablish_meth, their_node_id_arr, msg_ref);
@@ -12529,13 +11299,8 @@ void handle_channel_update_LDKChannelMessageHandler_jcall(const void* this_arg,
        LDKChannelUpdate msg_var = *msg;
        int64_t msg_ref = 0;
        msg_var = ChannelUpdate_clone(&msg_var);
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_channel_update_meth, their_node_id_arr, msg_ref);
@@ -12561,13 +11326,8 @@ void handle_error_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPublic
        LDKErrorMessage msg_var = *msg;
        int64_t msg_ref = 0;
        msg_var = ErrorMessage_clone(&msg_var);
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_error_meth, their_node_id_arr, msg_ref);
@@ -12663,241 +11423,255 @@ static inline LDKChannelMessageHandler LDKChannelMessageHandler_init (JNIEnv *en
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKChannelMessageHandler_1new(JNIEnv *env, jclass clz, jobject o, jobject MessageSendEventsProvider) {
        LDKChannelMessageHandler *res_ptr = MALLOC(sizeof(LDKChannelMessageHandler), "LDKChannelMessageHandler");
        *res_ptr = LDKChannelMessageHandler_init(env, clz, o, MessageSendEventsProvider);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKChannelMessageHandler_1get_1MessageSendEventsProvider(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKChannelMessageHandler *inp = (LDKChannelMessageHandler *)(arg & ~1);
-       uint64_t res_ptr = (uint64_t)&inp->MessageSendEventsProvider;
-       DO_ASSERT((res_ptr & 1) == 0);
-       return (int64_t)(res_ptr | 1);
+       LDKChannelMessageHandler *inp = (LDKChannelMessageHandler *)untag_ptr(arg);
+       return tag_ptr(&inp->MessageSendEventsProvider, false);
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_1open_1channel(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t their_features, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
        LDKInitFeatures their_features_conv;
-       their_features_conv.inner = (void*)(their_features & (~1));
-       their_features_conv.is_owned = (their_features & 1) || (their_features == 0);
+       their_features_conv.inner = untag_ptr(their_features);
+       their_features_conv.is_owned = ptr_is_owned(their_features);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(their_features_conv);
        their_features_conv = InitFeatures_clone(&their_features_conv);
        LDKOpenChannel msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        (this_arg_conv->handle_open_channel)(this_arg_conv->this_arg, their_node_id_ref, their_features_conv, &msg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_1accept_1channel(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t their_features, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
        LDKInitFeatures their_features_conv;
-       their_features_conv.inner = (void*)(their_features & (~1));
-       their_features_conv.is_owned = (their_features & 1) || (their_features == 0);
+       their_features_conv.inner = untag_ptr(their_features);
+       their_features_conv.is_owned = ptr_is_owned(their_features);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(their_features_conv);
        their_features_conv = InitFeatures_clone(&their_features_conv);
        LDKAcceptChannel msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        (this_arg_conv->handle_accept_channel)(this_arg_conv->this_arg, their_node_id_ref, their_features_conv, &msg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_1funding_1created(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
        LDKFundingCreated msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        (this_arg_conv->handle_funding_created)(this_arg_conv->this_arg, their_node_id_ref, &msg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_1funding_1signed(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
        LDKFundingSigned msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        (this_arg_conv->handle_funding_signed)(this_arg_conv->this_arg, their_node_id_ref, &msg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_1channel_1ready(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
        LDKChannelReady msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        (this_arg_conv->handle_channel_ready)(this_arg_conv->this_arg, their_node_id_ref, &msg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_1shutdown(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t their_features, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
        LDKInitFeatures their_features_conv;
-       their_features_conv.inner = (void*)(their_features & (~1));
-       their_features_conv.is_owned = false;
+       their_features_conv.inner = untag_ptr(their_features);
+       their_features_conv.is_owned = ptr_is_owned(their_features);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(their_features_conv);
+       their_features_conv.is_owned = false;
        LDKShutdown msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        (this_arg_conv->handle_shutdown)(this_arg_conv->this_arg, their_node_id_ref, &their_features_conv, &msg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_1closing_1signed(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
        LDKClosingSigned msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        (this_arg_conv->handle_closing_signed)(this_arg_conv->this_arg, their_node_id_ref, &msg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_1update_1add_1htlc(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
        LDKUpdateAddHTLC msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        (this_arg_conv->handle_update_add_htlc)(this_arg_conv->this_arg, their_node_id_ref, &msg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_1update_1fulfill_1htlc(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
        LDKUpdateFulfillHTLC msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        (this_arg_conv->handle_update_fulfill_htlc)(this_arg_conv->this_arg, their_node_id_ref, &msg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_1update_1fail_1htlc(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
        LDKUpdateFailHTLC msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        (this_arg_conv->handle_update_fail_htlc)(this_arg_conv->this_arg, their_node_id_ref, &msg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_1update_1fail_1malformed_1htlc(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
        LDKUpdateFailMalformedHTLC msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        (this_arg_conv->handle_update_fail_malformed_htlc)(this_arg_conv->this_arg, their_node_id_ref, &msg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_1commitment_1signed(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
        LDKCommitmentSigned msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        (this_arg_conv->handle_commitment_signed)(this_arg_conv->this_arg, their_node_id_ref, &msg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_1revoke_1and_1ack(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
        LDKRevokeAndACK msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        (this_arg_conv->handle_revoke_and_ack)(this_arg_conv->this_arg, their_node_id_ref, &msg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_1update_1fee(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
        LDKUpdateFee msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        (this_arg_conv->handle_update_fee)(this_arg_conv->this_arg, their_node_id_ref, &msg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_1announcement_1signatures(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
        LDKAnnouncementSignatures msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        (this_arg_conv->handle_announcement_signatures)(this_arg_conv->this_arg, their_node_id_ref, &msg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1peer_1disconnected(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, jboolean no_connection_possible) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
@@ -12906,58 +11680,62 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1peer_1d
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1peer_1connected(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
        LDKInit msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        (this_arg_conv->peer_connected)(this_arg_conv->this_arg, their_node_id_ref, &msg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_1channel_1reestablish(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
        LDKChannelReestablish msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        (this_arg_conv->handle_channel_reestablish)(this_arg_conv->this_arg, their_node_id_ref, &msg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_1channel_1update(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
        LDKChannelUpdate msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        (this_arg_conv->handle_channel_update)(this_arg_conv->this_arg, their_node_id_ref, &msg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_1error(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
        LDKErrorMessage msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        (this_arg_conv->handle_error)(this_arg_conv->this_arg, their_node_id_ref, &msg_conv);
 }
 
@@ -13006,13 +11784,8 @@ LDKCResult_boolLightningErrorZ handle_node_announcement_LDKRoutingMessageHandler
        LDKNodeAnnouncement msg_var = *msg;
        int64_t msg_ref = 0;
        msg_var = NodeAnnouncement_clone(&msg_var);
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        uint64_t ret = (*env)->CallLongMethod(env, obj, j_calls->handle_node_announcement_meth, msg_ref);
@@ -13020,10 +11793,10 @@ LDKCResult_boolLightningErrorZ handle_node_announcement_LDKRoutingMessageHandler
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to handle_node_announcement in LDKRoutingMessageHandler from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_boolLightningErrorZ ret_conv = *(LDKCResult_boolLightningErrorZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -13041,13 +11814,8 @@ LDKCResult_boolLightningErrorZ handle_channel_announcement_LDKRoutingMessageHand
        LDKChannelAnnouncement msg_var = *msg;
        int64_t msg_ref = 0;
        msg_var = ChannelAnnouncement_clone(&msg_var);
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        uint64_t ret = (*env)->CallLongMethod(env, obj, j_calls->handle_channel_announcement_meth, msg_ref);
@@ -13055,10 +11823,10 @@ LDKCResult_boolLightningErrorZ handle_channel_announcement_LDKRoutingMessageHand
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to handle_channel_announcement in LDKRoutingMessageHandler from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_boolLightningErrorZ ret_conv = *(LDKCResult_boolLightningErrorZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -13076,13 +11844,8 @@ LDKCResult_boolLightningErrorZ handle_channel_update_LDKRoutingMessageHandler_jc
        LDKChannelUpdate msg_var = *msg;
        int64_t msg_ref = 0;
        msg_var = ChannelUpdate_clone(&msg_var);
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        uint64_t ret = (*env)->CallLongMethod(env, obj, j_calls->handle_channel_update_meth, msg_ref);
@@ -13090,10 +11853,10 @@ LDKCResult_boolLightningErrorZ handle_channel_update_LDKRoutingMessageHandler_jc
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to handle_channel_update in LDKRoutingMessageHandler from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_boolLightningErrorZ ret_conv = *(LDKCResult_boolLightningErrorZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -13126,10 +11889,10 @@ LDKCVec_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZZ get_next_channel
        int64_t* ret_vals = (*env)->GetLongArrayElements (env, ret, NULL);
        for (size_t h = 0; h < ret_constr.datalen; h++) {
                int64_t ret_conv_59 = ret_vals[h];
-               void* ret_conv_59_ptr = (void*)(((uintptr_t)ret_conv_59) & ~1);
+               void* ret_conv_59_ptr = untag_ptr(ret_conv_59);
                CHECK_ACCESS(ret_conv_59_ptr);
                LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ ret_conv_59_conv = *(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(ret_conv_59_ptr);
-               FREE((void*)ret_conv_59);
+               FREE(untag_ptr(ret_conv_59));
                ret_constr.data[h] = ret_conv_59_conv;
        }
        (*env)->ReleaseLongArrayElements(env, ret, ret_vals, 0);
@@ -13167,8 +11930,8 @@ LDKCVec_NodeAnnouncementZ get_next_node_announcements_LDKRoutingMessageHandler_j
        for (size_t s = 0; s < ret_constr.datalen; s++) {
                int64_t ret_conv_18 = ret_vals[s];
                LDKNodeAnnouncement ret_conv_18_conv;
-               ret_conv_18_conv.inner = (void*)(ret_conv_18 & (~1));
-               ret_conv_18_conv.is_owned = (ret_conv_18 & 1) || (ret_conv_18 == 0);
+               ret_conv_18_conv.inner = untag_ptr(ret_conv_18);
+               ret_conv_18_conv.is_owned = ptr_is_owned(ret_conv_18);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_18_conv);
                ret_constr.data[s] = ret_conv_18_conv;
        }
@@ -13192,13 +11955,8 @@ void peer_connected_LDKRoutingMessageHandler_jcall(const void* this_arg, LDKPubl
        LDKInit init_var = *init;
        int64_t init_ref = 0;
        init_var = Init_clone(&init_var);
-       CHECK((((uintptr_t)init_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&init_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(init_var);
-       init_ref = (uintptr_t)init_var.inner;
-       if (init_var.is_owned) {
-               init_ref |= 1;
-       }
+       init_ref = tag_ptr(init_var.inner, init_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->peer_connected_meth, their_node_id_arr, init_ref);
@@ -13223,13 +11981,8 @@ LDKCResult_NoneLightningErrorZ handle_reply_channel_range_LDKRoutingMessageHandl
        (*env)->SetByteArrayRegion(env, their_node_id_arr, 0, 33, their_node_id.compressed_form);
        LDKReplyChannelRange msg_var = msg;
        int64_t msg_ref = 0;
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        uint64_t ret = (*env)->CallLongMethod(env, obj, j_calls->handle_reply_channel_range_meth, their_node_id_arr, msg_ref);
@@ -13237,10 +11990,10 @@ LDKCResult_NoneLightningErrorZ handle_reply_channel_range_LDKRoutingMessageHandl
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to handle_reply_channel_range in LDKRoutingMessageHandler from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneLightningErrorZ ret_conv = *(LDKCResult_NoneLightningErrorZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -13259,13 +12012,8 @@ LDKCResult_NoneLightningErrorZ handle_reply_short_channel_ids_end_LDKRoutingMess
        (*env)->SetByteArrayRegion(env, their_node_id_arr, 0, 33, their_node_id.compressed_form);
        LDKReplyShortChannelIdsEnd msg_var = msg;
        int64_t msg_ref = 0;
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        uint64_t ret = (*env)->CallLongMethod(env, obj, j_calls->handle_reply_short_channel_ids_end_meth, their_node_id_arr, msg_ref);
@@ -13273,10 +12021,10 @@ LDKCResult_NoneLightningErrorZ handle_reply_short_channel_ids_end_LDKRoutingMess
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to handle_reply_short_channel_ids_end in LDKRoutingMessageHandler from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneLightningErrorZ ret_conv = *(LDKCResult_NoneLightningErrorZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -13295,13 +12043,8 @@ LDKCResult_NoneLightningErrorZ handle_query_channel_range_LDKRoutingMessageHandl
        (*env)->SetByteArrayRegion(env, their_node_id_arr, 0, 33, their_node_id.compressed_form);
        LDKQueryChannelRange msg_var = msg;
        int64_t msg_ref = 0;
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        uint64_t ret = (*env)->CallLongMethod(env, obj, j_calls->handle_query_channel_range_meth, their_node_id_arr, msg_ref);
@@ -13309,10 +12052,10 @@ LDKCResult_NoneLightningErrorZ handle_query_channel_range_LDKRoutingMessageHandl
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to handle_query_channel_range in LDKRoutingMessageHandler from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneLightningErrorZ ret_conv = *(LDKCResult_NoneLightningErrorZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -13331,13 +12074,8 @@ LDKCResult_NoneLightningErrorZ handle_query_short_channel_ids_LDKRoutingMessageH
        (*env)->SetByteArrayRegion(env, their_node_id_arr, 0, 33, their_node_id.compressed_form);
        LDKQueryShortChannelIds msg_var = msg;
        int64_t msg_ref = 0;
-       CHECK((((uintptr_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_var);
-       msg_ref = (uintptr_t)msg_var.inner;
-       if (msg_var.is_owned) {
-               msg_ref |= 1;
-       }
+       msg_ref = tag_ptr(msg_var.inner, msg_var.is_owned);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        uint64_t ret = (*env)->CallLongMethod(env, obj, j_calls->handle_query_short_channel_ids_meth, their_node_id_arr, msg_ref);
@@ -13345,10 +12083,10 @@ LDKCResult_NoneLightningErrorZ handle_query_short_channel_ids_LDKRoutingMessageH
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to handle_query_short_channel_ids in LDKRoutingMessageHandler from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneLightningErrorZ ret_conv = *(LDKCResult_NoneLightningErrorZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -13408,56 +12146,57 @@ static inline LDKRoutingMessageHandler LDKRoutingMessageHandler_init (JNIEnv *en
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKRoutingMessageHandler_1new(JNIEnv *env, jclass clz, jobject o, jobject MessageSendEventsProvider) {
        LDKRoutingMessageHandler *res_ptr = MALLOC(sizeof(LDKRoutingMessageHandler), "LDKRoutingMessageHandler");
        *res_ptr = LDKRoutingMessageHandler_init(env, clz, o, MessageSendEventsProvider);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKRoutingMessageHandler_1get_1MessageSendEventsProvider(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKRoutingMessageHandler *inp = (LDKRoutingMessageHandler *)(arg & ~1);
-       uint64_t res_ptr = (uint64_t)&inp->MessageSendEventsProvider;
-       DO_ASSERT((res_ptr & 1) == 0);
-       return (int64_t)(res_ptr | 1);
+       LDKRoutingMessageHandler *inp = (LDKRoutingMessageHandler *)untag_ptr(arg);
+       return tag_ptr(&inp->MessageSendEventsProvider, false);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_1handle_1node_1announcement(JNIEnv *env, jclass clz, int64_t this_arg, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)this_arg_ptr;
        LDKNodeAnnouncement msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        LDKCResult_boolLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_boolLightningErrorZ), "LDKCResult_boolLightningErrorZ");
        *ret_conv = (this_arg_conv->handle_node_announcement)(this_arg_conv->this_arg, &msg_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_1handle_1channel_1announcement(JNIEnv *env, jclass clz, int64_t this_arg, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)this_arg_ptr;
        LDKChannelAnnouncement msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        LDKCResult_boolLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_boolLightningErrorZ), "LDKCResult_boolLightningErrorZ");
        *ret_conv = (this_arg_conv->handle_channel_announcement)(this_arg_conv->this_arg, &msg_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_1handle_1channel_1update(JNIEnv *env, jclass clz, int64_t this_arg, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)this_arg_ptr;
        LDKChannelUpdate msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        LDKCResult_boolLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_boolLightningErrorZ), "LDKCResult_boolLightningErrorZ");
        *ret_conv = (this_arg_conv->handle_channel_update)(this_arg_conv->this_arg, &msg_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_1get_1next_1channel_1announcements(JNIEnv *env, jclass clz, int64_t this_arg, int64_t starting_point, int8_t batch_amount) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)this_arg_ptr;
        LDKCVec_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZZ ret_var = (this_arg_conv->get_next_channel_announcements)(this_arg_conv->this_arg, starting_point, batch_amount);
        int64_tArray ret_arr = NULL;
@@ -13466,7 +12205,7 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_
        for (size_t h = 0; h < ret_var.datalen; h++) {
                LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ* ret_conv_59_conv = MALLOC(sizeof(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ), "LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ");
                *ret_conv_59_conv = ret_var.data[h];
-               ret_arr_ptr[h] = ((int64_t)ret_conv_59_conv);
+               ret_arr_ptr[h] = tag_ptr(ret_conv_59_conv, true);
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
        FREE(ret_var.data);
@@ -13474,8 +12213,8 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_
 }
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_1get_1next_1node_1announcements(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray starting_point, int8_t batch_amount) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)this_arg_ptr;
        LDKPublicKey starting_point_ref;
        CHECK((*env)->GetArrayLength(env, starting_point) == 33);
@@ -13487,13 +12226,8 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_
        for (size_t s = 0; s < ret_var.datalen; s++) {
                LDKNodeAnnouncement ret_conv_18_var = ret_var.data[s];
                int64_t ret_conv_18_ref = 0;
-               CHECK((((uintptr_t)ret_conv_18_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_conv_18_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_18_var);
-               ret_conv_18_ref = (uintptr_t)ret_conv_18_var.inner;
-               if (ret_conv_18_var.is_owned) {
-                       ret_conv_18_ref |= 1;
-               }
+               ret_conv_18_ref = tag_ptr(ret_conv_18_var.inner, ret_conv_18_var.is_owned);
                ret_arr_ptr[s] = ret_conv_18_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
@@ -13502,85 +12236,86 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_1peer_1connected(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t init) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
        LDKInit init_conv;
-       init_conv.inner = (void*)(init & (~1));
-       init_conv.is_owned = false;
+       init_conv.inner = untag_ptr(init);
+       init_conv.is_owned = ptr_is_owned(init);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(init_conv);
+       init_conv.is_owned = false;
        (this_arg_conv->peer_connected)(this_arg_conv->this_arg, their_node_id_ref, &init_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_1handle_1reply_1channel_1range(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
        LDKReplyChannelRange msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = ReplyChannelRange_clone(&msg_conv);
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = (this_arg_conv->handle_reply_channel_range)(this_arg_conv->this_arg, their_node_id_ref, msg_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_1handle_1reply_1short_1channel_1ids_1end(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
        LDKReplyShortChannelIdsEnd msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = ReplyShortChannelIdsEnd_clone(&msg_conv);
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = (this_arg_conv->handle_reply_short_channel_ids_end)(this_arg_conv->this_arg, their_node_id_ref, msg_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_1handle_1query_1channel_1range(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
        LDKQueryChannelRange msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = QueryChannelRange_clone(&msg_conv);
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = (this_arg_conv->handle_query_channel_range)(this_arg_conv->this_arg, their_node_id_ref, msg_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_1handle_1query_1short_1channel_1ids(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t msg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)this_arg_ptr;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
        LDKQueryShortChannelIds msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = QueryShortChannelIds_clone(&msg_conv);
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = (this_arg_conv->handle_query_short_channel_ids)(this_arg_conv->this_arg, their_node_id_ref, msg_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 typedef struct LDKCustomMessageReader_JCalls {
@@ -13626,10 +12361,10 @@ LDKCResult_COption_TypeZDecodeErrorZ read_LDKCustomMessageReader_jcall(const voi
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to read in LDKCustomMessageReader from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_COption_TypeZDecodeErrorZ ret_conv = *(LDKCResult_COption_TypeZDecodeErrorZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -13659,11 +12394,11 @@ static inline LDKCustomMessageReader LDKCustomMessageReader_init (JNIEnv *env, j
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCustomMessageReader_1new(JNIEnv *env, jclass clz, jobject o) {
        LDKCustomMessageReader *res_ptr = MALLOC(sizeof(LDKCustomMessageReader), "LDKCustomMessageReader");
        *res_ptr = LDKCustomMessageReader_init(env, clz, o);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CustomMessageReader_1read(JNIEnv *env, jclass clz, int64_t this_arg, int16_t message_type, int8_tArray buffer) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKCustomMessageReader* this_arg_conv = (LDKCustomMessageReader*)this_arg_ptr;
        LDKu8slice buffer_ref;
        buffer_ref.datalen = (*env)->GetArrayLength(env, buffer);
@@ -13671,7 +12406,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CustomMessageReader_1read(J
        LDKCResult_COption_TypeZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_TypeZDecodeErrorZ), "LDKCResult_COption_TypeZDecodeErrorZ");
        *ret_conv = (this_arg_conv->read)(this_arg_conv->this_arg, message_type, buffer_ref);
        (*env)->ReleaseByteArrayElements(env, buffer, (int8_t*)buffer_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 typedef struct LDKCustomMessageHandler_JCalls {
@@ -13714,15 +12449,15 @@ LDKCResult_NoneLightningErrorZ handle_custom_message_LDKCustomMessageHandler_jca
        (*env)->SetByteArrayRegion(env, sender_node_id_arr, 0, 33, sender_node_id.compressed_form);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
-       uint64_t ret = (*env)->CallLongMethod(env, obj, j_calls->handle_custom_message_meth, (int64_t)msg_ret, sender_node_id_arr);
+       uint64_t ret = (*env)->CallLongMethod(env, obj, j_calls->handle_custom_message_meth, tag_ptr(msg_ret, true), sender_node_id_arr);
        if (UNLIKELY((*env)->ExceptionCheck(env))) {
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to handle_custom_message in LDKCustomMessageHandler from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NoneLightningErrorZ ret_conv = *(LDKCResult_NoneLightningErrorZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -13753,10 +12488,10 @@ LDKCVec_C2Tuple_PublicKeyTypeZZ get_and_clear_pending_msg_LDKCustomMessageHandle
        int64_t* ret_vals = (*env)->GetLongArrayElements (env, ret, NULL);
        for (size_t z = 0; z < ret_constr.datalen; z++) {
                int64_t ret_conv_25 = ret_vals[z];
-               void* ret_conv_25_ptr = (void*)(((uintptr_t)ret_conv_25) & ~1);
+               void* ret_conv_25_ptr = untag_ptr(ret_conv_25);
                CHECK_ACCESS(ret_conv_25_ptr);
                LDKC2Tuple_PublicKeyTypeZ ret_conv_25_conv = *(LDKC2Tuple_PublicKeyTypeZ*)(ret_conv_25_ptr);
-               FREE((void*)ret_conv_25);
+               FREE(untag_ptr(ret_conv_25));
                ret_constr.data[z] = ret_conv_25_conv;
        }
        (*env)->ReleaseLongArrayElements(env, ret, ret_vals, 0);
@@ -13795,19 +12530,17 @@ static inline LDKCustomMessageHandler LDKCustomMessageHandler_init (JNIEnv *env,
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCustomMessageHandler_1new(JNIEnv *env, jclass clz, jobject o, jobject CustomMessageReader) {
        LDKCustomMessageHandler *res_ptr = MALLOC(sizeof(LDKCustomMessageHandler), "LDKCustomMessageHandler");
        *res_ptr = LDKCustomMessageHandler_init(env, clz, o, CustomMessageReader);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCustomMessageHandler_1get_1CustomMessageReader(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCustomMessageHandler *inp = (LDKCustomMessageHandler *)(arg & ~1);
-       uint64_t res_ptr = (uint64_t)&inp->CustomMessageReader;
-       DO_ASSERT((res_ptr & 1) == 0);
-       return (int64_t)(res_ptr | 1);
+       LDKCustomMessageHandler *inp = (LDKCustomMessageHandler *)untag_ptr(arg);
+       return tag_ptr(&inp->CustomMessageReader, false);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CustomMessageHandler_1handle_1custom_1message(JNIEnv *env, jclass clz, int64_t this_arg, int64_t msg, int8_tArray sender_node_id) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKCustomMessageHandler* this_arg_conv = (LDKCustomMessageHandler*)this_arg_ptr;
-       void* msg_ptr = (void*)(((uintptr_t)msg) & ~1);
+       void* msg_ptr = untag_ptr(msg);
        CHECK_ACCESS(msg_ptr);
        LDKType msg_conv = *(LDKType*)(msg_ptr);
        if (msg_conv.free == LDKType_JCalls_free) {
@@ -13819,12 +12552,12 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CustomMessageHandler_1handl
        (*env)->GetByteArrayRegion(env, sender_node_id, 0, 33, sender_node_id_ref.compressed_form);
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = (this_arg_conv->handle_custom_message)(this_arg_conv->this_arg, msg_conv, sender_node_id_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_CustomMessageHandler_1get_1and_1clear_1pending_1msg(JNIEnv *env, jclass clz, int64_t this_arg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKCustomMessageHandler* this_arg_conv = (LDKCustomMessageHandler*)this_arg_ptr;
        LDKCVec_C2Tuple_PublicKeyTypeZZ ret_var = (this_arg_conv->get_and_clear_pending_msg)(this_arg_conv->this_arg);
        int64_tArray ret_arr = NULL;
@@ -13833,7 +12566,7 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_CustomMessageHandler_1
        for (size_t z = 0; z < ret_var.datalen; z++) {
                LDKC2Tuple_PublicKeyTypeZ* ret_conv_25_conv = MALLOC(sizeof(LDKC2Tuple_PublicKeyTypeZ), "LDKC2Tuple_PublicKeyTypeZ");
                *ret_conv_25_conv = ret_var.data[z];
-               ret_arr_ptr[z] = ((int64_t)ret_conv_25_conv);
+               ret_arr_ptr[z] = tag_ptr(ret_conv_25_conv, true);
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
        FREE(ret_var.data);
@@ -13924,7 +12657,7 @@ bool eq_LDKSocketDescriptor_jcall(const void* this_arg, const LDKSocketDescripto
        *other_arg_clone = SocketDescriptor_clone(other_arg);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
-       jboolean ret = (*env)->CallBooleanMethod(env, obj, j_calls->eq_meth, (int64_t)other_arg_clone);
+       jboolean ret = (*env)->CallBooleanMethod(env, obj, j_calls->eq_meth, tag_ptr(other_arg_clone, true));
        if (UNLIKELY((*env)->ExceptionCheck(env))) {
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to eq in LDKSocketDescriptor from rust threw an exception.");
@@ -13989,11 +12722,11 @@ static inline LDKSocketDescriptor LDKSocketDescriptor_init (JNIEnv *env, jclass
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKSocketDescriptor_1new(JNIEnv *env, jclass clz, jobject o) {
        LDKSocketDescriptor *res_ptr = MALLOC(sizeof(LDKSocketDescriptor), "LDKSocketDescriptor");
        *res_ptr = LDKSocketDescriptor_init(env, clz, o);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SocketDescriptor_1send_1data(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray data, jboolean resume_read) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKSocketDescriptor* this_arg_conv = (LDKSocketDescriptor*)this_arg_ptr;
        LDKu8slice data_ref;
        data_ref.datalen = (*env)->GetArrayLength(env, data);
@@ -14004,15 +12737,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SocketDescriptor_1send_1dat
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_SocketDescriptor_1disconnect_1socket(JNIEnv *env, jclass clz, int64_t this_arg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKSocketDescriptor* this_arg_conv = (LDKSocketDescriptor*)this_arg_ptr;
        (this_arg_conv->disconnect_socket)(this_arg_conv->this_arg);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SocketDescriptor_1hash(JNIEnv *env, jclass clz, int64_t this_arg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKSocketDescriptor* this_arg_conv = (LDKSocketDescriptor*)this_arg_ptr;
        int64_t ret_conv = (this_arg_conv->hash)(this_arg_conv->this_arg);
        return ret_conv;
@@ -14056,7 +12789,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKEffectiveCapacity_init
        CHECK(LDKEffectiveCapacity_Unknown_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKEffectiveCapacity_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKEffectiveCapacity *obj = (LDKEffectiveCapacity*)(ptr & ~1);
+       LDKEffectiveCapacity *obj = (LDKEffectiveCapacity*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKEffectiveCapacity_ExactLiquidity: {
                        int64_t liquidity_msat_conv = obj->exact_liquidity.liquidity_msat;
@@ -14068,7 +12801,7 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKEffectiveCapacity_1ref_1
                }
                case LDKEffectiveCapacity_Total: {
                        int64_t capacity_msat_conv = obj->total.capacity_msat;
-                       int64_t htlc_maximum_msat_ref = ((uintptr_t)&obj->total.htlc_maximum_msat) | 1;
+                       int64_t htlc_maximum_msat_ref = tag_ptr(&obj->total.htlc_maximum_msat, false);
                        return (*env)->NewObject(env, LDKEffectiveCapacity_Total_class, LDKEffectiveCapacity_Total_meth, capacity_msat_conv, htlc_maximum_msat_ref);
                }
                case LDKEffectiveCapacity_Infinite: {
@@ -14119,7 +12852,7 @@ LDKScore lock_LDKLockableScore_jcall(const void* this_arg) {
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to lock in LDKLockableScore from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKScore ret_conv = *(LDKScore*)(ret_ptr);
        if (ret_conv.free == LDKScore_JCalls_free) {
@@ -14156,15 +12889,15 @@ static inline LDKLockableScore LDKLockableScore_init (JNIEnv *env, jclass clz, j
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKLockableScore_1new(JNIEnv *env, jclass clz, jobject o) {
        LDKLockableScore *res_ptr = MALLOC(sizeof(LDKLockableScore), "LDKLockableScore");
        *res_ptr = LDKLockableScore_init(env, clz, o);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LockableScore_1lock(JNIEnv *env, jclass clz, int64_t this_arg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKLockableScore* this_arg_conv = (LDKLockableScore*)this_arg_ptr;
        LDKScore* ret_ret = MALLOC(sizeof(LDKScore), "LDKScore");
        *ret_ret = (this_arg_conv->lock)(this_arg_conv->this_arg);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 static jclass LDKGossipSync_P2P_class = NULL;
@@ -14191,24 +12924,20 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKGossipSync_init (JNIEn
        CHECK(LDKGossipSync_None_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKGossipSync_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKGossipSync *obj = (LDKGossipSync*)(ptr & ~1);
+       LDKGossipSync *obj = (LDKGossipSync*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKGossipSync_P2P: {
                        LDKP2PGossipSync p2p_var = obj->p2p;
                        int64_t p2p_ref = 0;
-                       CHECK((((uintptr_t)p2p_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&p2p_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(p2p_var);
-                       p2p_ref = (uintptr_t)p2p_var.inner & ~1;
+                       p2p_ref = tag_ptr(p2p_var.inner, false);
                        return (*env)->NewObject(env, LDKGossipSync_P2P_class, LDKGossipSync_P2P_meth, p2p_ref);
                }
                case LDKGossipSync_Rapid: {
                        LDKRapidGossipSync rapid_var = obj->rapid;
                        int64_t rapid_ref = 0;
-                       CHECK((((uintptr_t)rapid_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&rapid_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(rapid_var);
-                       rapid_ref = (uintptr_t)rapid_var.inner & ~1;
+                       rapid_ref = tag_ptr(rapid_var.inner, false);
                        return (*env)->NewObject(env, LDKGossipSync_Rapid_class, LDKGossipSync_Rapid_meth, rapid_ref);
                }
                case LDKGossipSync_None: {
@@ -14241,7 +12970,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKFallback_init (JNIEnv
        CHECK(LDKFallback_ScriptHash_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKFallback_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKFallback *obj = (LDKFallback*)(ptr & ~1);
+       LDKFallback *obj = (LDKFallback*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKFallback_SegWitProgram: {
                        uint8_t version_val = obj->seg_wit_program.version._0;
@@ -14341,8 +13070,8 @@ LDKCVec_ChannelDetailsZ first_hops_LDKPayer_jcall(const void* this_arg) {
        for (size_t q = 0; q < ret_constr.datalen; q++) {
                int64_t ret_conv_16 = ret_vals[q];
                LDKChannelDetails ret_conv_16_conv;
-               ret_conv_16_conv.inner = (void*)(ret_conv_16 & (~1));
-               ret_conv_16_conv.is_owned = (ret_conv_16 & 1) || (ret_conv_16 == 0);
+               ret_conv_16_conv.inner = untag_ptr(ret_conv_16);
+               ret_conv_16_conv.is_owned = ptr_is_owned(ret_conv_16);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_16_conv);
                ret_constr.data[q] = ret_conv_16_conv;
        }
@@ -14364,13 +13093,8 @@ LDKCResult_PaymentIdPaymentSendFailureZ send_payment_LDKPayer_jcall(const void*
        LDKRoute route_var = *route;
        int64_t route_ref = 0;
        route_var = Route_clone(&route_var);
-       CHECK((((uintptr_t)route_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&route_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(route_var);
-       route_ref = (uintptr_t)route_var.inner;
-       if (route_var.is_owned) {
-               route_ref |= 1;
-       }
+       route_ref = tag_ptr(route_var.inner, route_var.is_owned);
        int8_tArray payment_hash_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, payment_hash_arr, 0, 32, payment_hash.data);
        int8_tArray payment_secret_arr = (*env)->NewByteArray(env, 32);
@@ -14382,10 +13106,10 @@ LDKCResult_PaymentIdPaymentSendFailureZ send_payment_LDKPayer_jcall(const void*
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to send_payment in LDKPayer from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_PaymentIdPaymentSendFailureZ ret_conv = *(LDKCResult_PaymentIdPaymentSendFailureZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -14403,13 +13127,8 @@ LDKCResult_PaymentIdPaymentSendFailureZ send_spontaneous_payment_LDKPayer_jcall(
        LDKRoute route_var = *route;
        int64_t route_ref = 0;
        route_var = Route_clone(&route_var);
-       CHECK((((uintptr_t)route_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&route_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(route_var);
-       route_ref = (uintptr_t)route_var.inner;
-       if (route_var.is_owned) {
-               route_ref |= 1;
-       }
+       route_ref = tag_ptr(route_var.inner, route_var.is_owned);
        int8_tArray payment_preimage_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, payment_preimage_arr, 0, 32, payment_preimage.data);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
@@ -14419,10 +13138,10 @@ LDKCResult_PaymentIdPaymentSendFailureZ send_spontaneous_payment_LDKPayer_jcall(
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to send_spontaneous_payment in LDKPayer from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_PaymentIdPaymentSendFailureZ ret_conv = *(LDKCResult_PaymentIdPaymentSendFailureZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -14440,13 +13159,8 @@ LDKCResult_NonePaymentSendFailureZ retry_payment_LDKPayer_jcall(const void* this
        LDKRoute route_var = *route;
        int64_t route_ref = 0;
        route_var = Route_clone(&route_var);
-       CHECK((((uintptr_t)route_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&route_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(route_var);
-       route_ref = (uintptr_t)route_var.inner;
-       if (route_var.is_owned) {
-               route_ref |= 1;
-       }
+       route_ref = tag_ptr(route_var.inner, route_var.is_owned);
        int8_tArray payment_id_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, payment_id_arr, 0, 32, payment_id.data);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
@@ -14456,10 +13170,10 @@ LDKCResult_NonePaymentSendFailureZ retry_payment_LDKPayer_jcall(const void* this
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to retry_payment in LDKPayer from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_NonePaymentSendFailureZ ret_conv = *(LDKCResult_NonePaymentSendFailureZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -14526,11 +13240,11 @@ static inline LDKPayer LDKPayer_init (JNIEnv *env, jclass clz, jobject o) {
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKPayer_1new(JNIEnv *env, jclass clz, jobject o) {
        LDKPayer *res_ptr = MALLOC(sizeof(LDKPayer), "LDKPayer");
        *res_ptr = LDKPayer_init(env, clz, o);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Payer_1node_1id(JNIEnv *env, jclass clz, int64_t this_arg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKPayer* this_arg_conv = (LDKPayer*)this_arg_ptr;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, (this_arg_conv->node_id)(this_arg_conv->this_arg).compressed_form);
@@ -14538,8 +13252,8 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Payer_1node_1id(JNIEnv
 }
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_Payer_1first_1hops(JNIEnv *env, jclass clz, int64_t this_arg) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKPayer* this_arg_conv = (LDKPayer*)this_arg_ptr;
        LDKCVec_ChannelDetailsZ ret_var = (this_arg_conv->first_hops)(this_arg_conv->this_arg);
        int64_tArray ret_arr = NULL;
@@ -14548,13 +13262,8 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_Payer_1first_1hops(JNI
        for (size_t q = 0; q < ret_var.datalen; q++) {
                LDKChannelDetails ret_conv_16_var = ret_var.data[q];
                int64_t ret_conv_16_ref = 0;
-               CHECK((((uintptr_t)ret_conv_16_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_conv_16_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_16_var);
-               ret_conv_16_ref = (uintptr_t)ret_conv_16_var.inner;
-               if (ret_conv_16_var.is_owned) {
-                       ret_conv_16_ref |= 1;
-               }
+               ret_conv_16_ref = tag_ptr(ret_conv_16_var.inner, ret_conv_16_var.is_owned);
                ret_arr_ptr[q] = ret_conv_16_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
@@ -14563,13 +13272,14 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_Payer_1first_1hops(JNI
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Payer_1send_1payment(JNIEnv *env, jclass clz, int64_t this_arg, int64_t route, int8_tArray payment_hash, int8_tArray payment_secret) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKPayer* this_arg_conv = (LDKPayer*)this_arg_ptr;
        LDKRoute route_conv;
-       route_conv.inner = (void*)(route & (~1));
-       route_conv.is_owned = false;
+       route_conv.inner = untag_ptr(route);
+       route_conv.is_owned = ptr_is_owned(route);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(route_conv);
+       route_conv.is_owned = false;
        LDKThirtyTwoBytes payment_hash_ref;
        CHECK((*env)->GetArrayLength(env, payment_hash) == 32);
        (*env)->GetByteArrayRegion(env, payment_hash, 0, 32, payment_hash_ref.data);
@@ -14578,44 +13288,46 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Payer_1send_1payment(JNIEnv
        (*env)->GetByteArrayRegion(env, payment_secret, 0, 32, payment_secret_ref.data);
        LDKCResult_PaymentIdPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentIdPaymentSendFailureZ), "LDKCResult_PaymentIdPaymentSendFailureZ");
        *ret_conv = (this_arg_conv->send_payment)(this_arg_conv->this_arg, &route_conv, payment_hash_ref, payment_secret_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Payer_1send_1spontaneous_1payment(JNIEnv *env, jclass clz, int64_t this_arg, int64_t route, int8_tArray payment_preimage) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKPayer* this_arg_conv = (LDKPayer*)this_arg_ptr;
        LDKRoute route_conv;
-       route_conv.inner = (void*)(route & (~1));
-       route_conv.is_owned = false;
+       route_conv.inner = untag_ptr(route);
+       route_conv.is_owned = ptr_is_owned(route);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(route_conv);
+       route_conv.is_owned = false;
        LDKThirtyTwoBytes payment_preimage_ref;
        CHECK((*env)->GetArrayLength(env, payment_preimage) == 32);
        (*env)->GetByteArrayRegion(env, payment_preimage, 0, 32, payment_preimage_ref.data);
        LDKCResult_PaymentIdPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentIdPaymentSendFailureZ), "LDKCResult_PaymentIdPaymentSendFailureZ");
        *ret_conv = (this_arg_conv->send_spontaneous_payment)(this_arg_conv->this_arg, &route_conv, payment_preimage_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Payer_1retry_1payment(JNIEnv *env, jclass clz, int64_t this_arg, int64_t route, int8_tArray payment_id) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKPayer* this_arg_conv = (LDKPayer*)this_arg_ptr;
        LDKRoute route_conv;
-       route_conv.inner = (void*)(route & (~1));
-       route_conv.is_owned = false;
+       route_conv.inner = untag_ptr(route);
+       route_conv.is_owned = ptr_is_owned(route);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(route_conv);
+       route_conv.is_owned = false;
        LDKThirtyTwoBytes payment_id_ref;
        CHECK((*env)->GetArrayLength(env, payment_id) == 32);
        (*env)->GetByteArrayRegion(env, payment_id, 0, 32, payment_id_ref.data);
        LDKCResult_NonePaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePaymentSendFailureZ), "LDKCResult_NonePaymentSendFailureZ");
        *ret_conv = (this_arg_conv->retry_payment)(this_arg_conv->this_arg, &route_conv, payment_id_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Payer_1abandon_1payment(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray payment_id) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKPayer* this_arg_conv = (LDKPayer*)this_arg_ptr;
        LDKThirtyTwoBytes payment_id_ref;
        CHECK((*env)->GetArrayLength(env, payment_id) == 32);
@@ -14660,13 +13372,8 @@ LDKCResult_RouteLightningErrorZ find_route_LDKRouter_jcall(const void* this_arg,
        LDKRouteParameters route_params_var = *route_params;
        int64_t route_params_ref = 0;
        route_params_var = RouteParameters_clone(&route_params_var);
-       CHECK((((uintptr_t)route_params_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&route_params_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(route_params_var);
-       route_params_ref = (uintptr_t)route_params_var.inner;
-       if (route_params_var.is_owned) {
-               route_params_ref |= 1;
-       }
+       route_params_ref = tag_ptr(route_params_var.inner, route_params_var.is_owned);
        int8_tArray payment_hash_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, payment_hash_arr, 0, 32, *payment_hash);
        LDKCVec_ChannelDetailsZ *first_hops_var_ptr = first_hops;
@@ -14678,19 +13385,14 @@ LDKCResult_RouteLightningErrorZ find_route_LDKRouter_jcall(const void* this_arg,
                for (size_t q = 0; q < first_hops_var.datalen; q++) {
                        LDKChannelDetails first_hops_conv_16_var =      first_hops_var.data[q];
                        int64_t first_hops_conv_16_ref = 0;
-                       CHECK((((uintptr_t)first_hops_conv_16_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&first_hops_conv_16_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(first_hops_conv_16_var);
-                       first_hops_conv_16_ref = (uintptr_t)first_hops_conv_16_var.inner;
-                       if (first_hops_conv_16_var.is_owned) {
-                               first_hops_conv_16_ref |= 1;
-                       }
+                       first_hops_conv_16_ref = tag_ptr(first_hops_conv_16_var.inner, first_hops_conv_16_var.is_owned);
                        first_hops_arr_ptr[q] = first_hops_conv_16_ref;
                }
                (*env)->ReleasePrimitiveArrayCritical(env, first_hops_arr, first_hops_arr_ptr, 0);
        }
        // WARNING: This object doesn't live past this scope, needs clone!
-       int64_t ret_scorer = ((uintptr_t)scorer) | 1;
+       int64_t ret_scorer = tag_ptr(scorer, false);
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        uint64_t ret = (*env)->CallLongMethod(env, obj, j_calls->find_route_meth, payer_arr, route_params_ref, payment_hash_arr, first_hops_arr, ret_scorer);
@@ -14698,10 +13400,10 @@ LDKCResult_RouteLightningErrorZ find_route_LDKRouter_jcall(const void* this_arg,
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to find_route in LDKRouter from rust threw an exception.");
        }
-       void* ret_ptr = (void*)(((uintptr_t)ret) & ~1);
+       void* ret_ptr = untag_ptr(ret);
        CHECK_ACCESS(ret_ptr);
        LDKCResult_RouteLightningErrorZ ret_conv = *(LDKCResult_RouteLightningErrorZ*)(ret_ptr);
-       FREE((void*)ret);
+       FREE(untag_ptr(ret));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -14731,19 +13433,20 @@ static inline LDKRouter LDKRouter_init (JNIEnv *env, jclass clz, jobject o) {
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKRouter_1new(JNIEnv *env, jclass clz, jobject o) {
        LDKRouter *res_ptr = MALLOC(sizeof(LDKRouter), "LDKRouter");
        *res_ptr = LDKRouter_init(env, clz, o);
-       return (uint64_t)res_ptr;
+       return tag_ptr(res_ptr, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Router_1find_1route(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray payer, int64_t route_params, int8_tArray payment_hash, int64_tArray first_hops, int64_t scorer) {
-       void* this_arg_ptr = (void*)(((uintptr_t)this_arg) & ~1);
-       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       void* this_arg_ptr = untag_ptr(this_arg);
+       if (ptr_is_owned(this_arg)) { CHECK_ACCESS(this_arg_ptr); }
        LDKRouter* this_arg_conv = (LDKRouter*)this_arg_ptr;
        LDKPublicKey payer_ref;
        CHECK((*env)->GetArrayLength(env, payer) == 33);
        (*env)->GetByteArrayRegion(env, payer, 0, 33, payer_ref.compressed_form);
        LDKRouteParameters route_params_conv;
-       route_params_conv.inner = (void*)(route_params & (~1));
-       route_params_conv.is_owned = false;
+       route_params_conv.inner = untag_ptr(route_params);
+       route_params_conv.is_owned = ptr_is_owned(route_params);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(route_params_conv);
+       route_params_conv.is_owned = false;
        unsigned char payment_hash_arr[32];
        CHECK((*env)->GetArrayLength(env, payment_hash) == 32);
        (*env)->GetByteArrayRegion(env, payment_hash, 0, 32, payment_hash_arr);
@@ -14760,21 +13463,22 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Router_1find_1route(JNIEnv
                for (size_t q = 0; q < first_hops_constr.datalen; q++) {
                        int64_t first_hops_conv_16 = first_hops_vals[q];
                        LDKChannelDetails first_hops_conv_16_conv;
-                       first_hops_conv_16_conv.inner = (void*)(first_hops_conv_16 & (~1));
-                       first_hops_conv_16_conv.is_owned = (first_hops_conv_16 & 1) || (first_hops_conv_16 == 0);
+                       first_hops_conv_16_conv.inner = untag_ptr(first_hops_conv_16);
+                       first_hops_conv_16_conv.is_owned = ptr_is_owned(first_hops_conv_16);
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(first_hops_conv_16_conv);
+                       first_hops_conv_16_conv.is_owned = false;
                        first_hops_constr.data[q] = first_hops_conv_16_conv;
                }
                (*env)->ReleaseLongArrayElements(env, first_hops, first_hops_vals, 0);
                first_hops_ptr = &first_hops_constr;
        }
-       void* scorer_ptr = (void*)(((uintptr_t)scorer) & ~1);
-       if (!(scorer & 1)) { CHECK_ACCESS(scorer_ptr); }
+       void* scorer_ptr = untag_ptr(scorer);
+       if (ptr_is_owned(scorer)) { CHECK_ACCESS(scorer_ptr); }
        LDKScore* scorer_conv = (LDKScore*)scorer_ptr;
        LDKCResult_RouteLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteLightningErrorZ), "LDKCResult_RouteLightningErrorZ");
        *ret_conv = (this_arg_conv->find_route)(this_arg_conv->this_arg, payer_ref, &route_params_conv, payment_hash_ref, first_hops_ptr, scorer_conv);
        if (first_hops_ptr != NULL) { FREE(first_hops_constr.data); }
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 static jclass LDKRetry_Attempts_class = NULL;
@@ -14794,7 +13498,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKRetry_init (JNIEnv *en
        CHECK(LDKRetry_Timeout_meth != NULL);
 }
 JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKRetry_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
-       LDKRetry *obj = (LDKRetry*)(ptr & ~1);
+       LDKRetry *obj = (LDKRetry*)untag_ptr(ptr);
        switch(obj->tag) {
                case LDKRetry_Attempts: {
                        int64_t attempts_conv = obj->attempts;
@@ -14821,32 +13525,32 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings__1ldk_1c_1bindings_1get_1co
        return ret_conv;
 }
 
-static inline uintptr_t Bech32Error_clone_ptr(LDKBech32Error *NONNULL_PTR arg) {
+static inline uint64_t Bech32Error_clone_ptr(LDKBech32Error *NONNULL_PTR arg) {
        LDKBech32Error *ret_copy = MALLOC(sizeof(LDKBech32Error), "LDKBech32Error");
        *ret_copy = Bech32Error_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Bech32Error_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKBech32Error* arg_conv = (LDKBech32Error*)arg;
+       LDKBech32Error* arg_conv = (LDKBech32Error*)untag_ptr(arg);
        int64_t ret_conv = Bech32Error_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Bech32Error_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKBech32Error* orig_conv = (LDKBech32Error*)orig;
+       LDKBech32Error* orig_conv = (LDKBech32Error*)untag_ptr(orig);
        LDKBech32Error *ret_copy = MALLOC(sizeof(LDKBech32Error), "LDKBech32Error");
        *ret_copy = Bech32Error_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Bech32Error_1free(JNIEnv *env, jclass clz, int64_t o) {
-       if ((o & 1) != 0) return;
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       if (!ptr_is_owned(o)) return;
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKBech32Error o_conv = *(LDKBech32Error*)(o_ptr);
-       FREE((void*)o);
+       FREE(untag_ptr(o));
        Bech32Error_free(o_conv);
 }
 
@@ -14866,34 +13570,34 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_TxOut_1new(JNIEnv *env, jcl
        (*env)->GetByteArrayRegion(env, script_pubkey, 0, script_pubkey_ref.datalen, script_pubkey_ref.data);
        LDKTxOut* ret_ref = MALLOC(sizeof(LDKTxOut), "LDKTxOut");
        *ret_ref = TxOut_new(script_pubkey_ref, value);
-       return (int64_t)ret_ref;
+       return tag_ptr(ret_ref, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_TxOut_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKTxOut _res_conv = *(LDKTxOut*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        TxOut_free(_res_conv);
 }
 
-static inline uintptr_t TxOut_clone_ptr(LDKTxOut *NONNULL_PTR arg) {
+static inline uint64_t TxOut_clone_ptr(LDKTxOut *NONNULL_PTR arg) {
        LDKTxOut* ret_ref = MALLOC(sizeof(LDKTxOut), "LDKTxOut");
        *ret_ref = TxOut_clone(arg);
-       return (int64_t)ret_ref;
+       return tag_ptr(ret_ref, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_TxOut_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKTxOut* arg_conv = (LDKTxOut*)(arg & ~1);
+       LDKTxOut* arg_conv = (LDKTxOut*)untag_ptr(arg);
        int64_t ret_conv = TxOut_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_TxOut_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKTxOut* orig_conv = (LDKTxOut*)(orig & ~1);
+       LDKTxOut* orig_conv = (LDKTxOut*)untag_ptr(orig);
        LDKTxOut* ret_ref = MALLOC(sizeof(LDKTxOut), "LDKTxOut");
        *ret_ref = TxOut_clone(orig_conv);
-       return (int64_t)ret_ref;
+       return tag_ptr(ret_ref, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Str_1free(JNIEnv *env, jclass clz, jstring _res) {
@@ -14904,101 +13608,101 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Str_1free(JNIEnv *env, jclass
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneNoneZ_1ok(JNIEnv *env, jclass clz) {
        LDKCResult_NoneNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneNoneZ), "LDKCResult_NoneNoneZ");
        *ret_conv = CResult_NoneNoneZ_ok();
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneNoneZ_1err(JNIEnv *env, jclass clz) {
        LDKCResult_NoneNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneNoneZ), "LDKCResult_NoneNoneZ");
        *ret_conv = CResult_NoneNoneZ_err();
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1NoneNoneZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_NoneNoneZ* o_conv = (LDKCResult_NoneNoneZ*)(o & ~1);
+       LDKCResult_NoneNoneZ* o_conv = (LDKCResult_NoneNoneZ*)untag_ptr(o);
        jboolean ret_conv = CResult_NoneNoneZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NoneNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NoneNoneZ _res_conv = *(LDKCResult_NoneNoneZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_NoneNoneZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_NoneNoneZ_clone_ptr(LDKCResult_NoneNoneZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_NoneNoneZ_clone_ptr(LDKCResult_NoneNoneZ *NONNULL_PTR arg) {
        LDKCResult_NoneNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneNoneZ), "LDKCResult_NoneNoneZ");
        *ret_conv = CResult_NoneNoneZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneNoneZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_NoneNoneZ* arg_conv = (LDKCResult_NoneNoneZ*)(arg & ~1);
+       LDKCResult_NoneNoneZ* arg_conv = (LDKCResult_NoneNoneZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_NoneNoneZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneNoneZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_NoneNoneZ* orig_conv = (LDKCResult_NoneNoneZ*)(orig & ~1);
+       LDKCResult_NoneNoneZ* orig_conv = (LDKCResult_NoneNoneZ*)untag_ptr(orig);
        LDKCResult_NoneNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneNoneZ), "LDKCResult_NoneNoneZ");
        *ret_conv = CResult_NoneNoneZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyCommitmentSecretsDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKCounterpartyCommitmentSecrets o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = CounterpartyCommitmentSecrets_clone(&o_conv);
        LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ), "LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ");
        *ret_conv = CResult_CounterpartyCommitmentSecretsDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyCommitmentSecretsDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ), "LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ");
        *ret_conv = CResult_CounterpartyCommitmentSecretsDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyCommitmentSecretsDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ* o_conv = (LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ*)(o & ~1);
+       LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ* o_conv = (LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_CounterpartyCommitmentSecretsDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyCommitmentSecretsDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ _res_conv = *(LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_CounterpartyCommitmentSecretsDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_CounterpartyCommitmentSecretsDecodeErrorZ_clone_ptr(LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_CounterpartyCommitmentSecretsDecodeErrorZ_clone_ptr(LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ), "LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ");
        *ret_conv = CResult_CounterpartyCommitmentSecretsDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyCommitmentSecretsDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ* arg_conv = (LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ*)(arg & ~1);
+       LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ* arg_conv = (LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_CounterpartyCommitmentSecretsDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyCommitmentSecretsDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ* orig_conv = (LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ*)(orig & ~1);
+       LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ* orig_conv = (LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ), "LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ");
        *ret_conv = CResult_CounterpartyCommitmentSecretsDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SecretKeyErrorZ_1ok(JNIEnv *env, jclass clz, int8_tArray o) {
@@ -15007,47 +13711,47 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SecretKeyErrorZ_1o
        (*env)->GetByteArrayRegion(env, o, 0, 32, o_ref.bytes);
        LDKCResult_SecretKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SecretKeyErrorZ), "LDKCResult_SecretKeyErrorZ");
        *ret_conv = CResult_SecretKeyErrorZ_ok(o_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SecretKeyErrorZ_1err(JNIEnv *env, jclass clz, jclass e) {
        LDKSecp256k1Error e_conv = LDKSecp256k1Error_from_java(env, e);
        LDKCResult_SecretKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SecretKeyErrorZ), "LDKCResult_SecretKeyErrorZ");
        *ret_conv = CResult_SecretKeyErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1SecretKeyErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_SecretKeyErrorZ* o_conv = (LDKCResult_SecretKeyErrorZ*)(o & ~1);
+       LDKCResult_SecretKeyErrorZ* o_conv = (LDKCResult_SecretKeyErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_SecretKeyErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1SecretKeyErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_SecretKeyErrorZ _res_conv = *(LDKCResult_SecretKeyErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_SecretKeyErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_SecretKeyErrorZ_clone_ptr(LDKCResult_SecretKeyErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_SecretKeyErrorZ_clone_ptr(LDKCResult_SecretKeyErrorZ *NONNULL_PTR arg) {
        LDKCResult_SecretKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SecretKeyErrorZ), "LDKCResult_SecretKeyErrorZ");
        *ret_conv = CResult_SecretKeyErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SecretKeyErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_SecretKeyErrorZ* arg_conv = (LDKCResult_SecretKeyErrorZ*)(arg & ~1);
+       LDKCResult_SecretKeyErrorZ* arg_conv = (LDKCResult_SecretKeyErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_SecretKeyErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SecretKeyErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_SecretKeyErrorZ* orig_conv = (LDKCResult_SecretKeyErrorZ*)(orig & ~1);
+       LDKCResult_SecretKeyErrorZ* orig_conv = (LDKCResult_SecretKeyErrorZ*)untag_ptr(orig);
        LDKCResult_SecretKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SecretKeyErrorZ), "LDKCResult_SecretKeyErrorZ");
        *ret_conv = CResult_SecretKeyErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PublicKeyErrorZ_1ok(JNIEnv *env, jclass clz, int8_tArray o) {
@@ -15056,306 +13760,306 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PublicKeyErrorZ_1o
        (*env)->GetByteArrayRegion(env, o, 0, 33, o_ref.compressed_form);
        LDKCResult_PublicKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PublicKeyErrorZ), "LDKCResult_PublicKeyErrorZ");
        *ret_conv = CResult_PublicKeyErrorZ_ok(o_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PublicKeyErrorZ_1err(JNIEnv *env, jclass clz, jclass e) {
        LDKSecp256k1Error e_conv = LDKSecp256k1Error_from_java(env, e);
        LDKCResult_PublicKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PublicKeyErrorZ), "LDKCResult_PublicKeyErrorZ");
        *ret_conv = CResult_PublicKeyErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1PublicKeyErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_PublicKeyErrorZ* o_conv = (LDKCResult_PublicKeyErrorZ*)(o & ~1);
+       LDKCResult_PublicKeyErrorZ* o_conv = (LDKCResult_PublicKeyErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_PublicKeyErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PublicKeyErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_PublicKeyErrorZ _res_conv = *(LDKCResult_PublicKeyErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_PublicKeyErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_PublicKeyErrorZ_clone_ptr(LDKCResult_PublicKeyErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_PublicKeyErrorZ_clone_ptr(LDKCResult_PublicKeyErrorZ *NONNULL_PTR arg) {
        LDKCResult_PublicKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PublicKeyErrorZ), "LDKCResult_PublicKeyErrorZ");
        *ret_conv = CResult_PublicKeyErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PublicKeyErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_PublicKeyErrorZ* arg_conv = (LDKCResult_PublicKeyErrorZ*)(arg & ~1);
+       LDKCResult_PublicKeyErrorZ* arg_conv = (LDKCResult_PublicKeyErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_PublicKeyErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PublicKeyErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_PublicKeyErrorZ* orig_conv = (LDKCResult_PublicKeyErrorZ*)(orig & ~1);
+       LDKCResult_PublicKeyErrorZ* orig_conv = (LDKCResult_PublicKeyErrorZ*)untag_ptr(orig);
        LDKCResult_PublicKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PublicKeyErrorZ), "LDKCResult_PublicKeyErrorZ");
        *ret_conv = CResult_PublicKeyErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TxCreationKeysDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKTxCreationKeys o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = TxCreationKeys_clone(&o_conv);
        LDKCResult_TxCreationKeysDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxCreationKeysDecodeErrorZ), "LDKCResult_TxCreationKeysDecodeErrorZ");
        *ret_conv = CResult_TxCreationKeysDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TxCreationKeysDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_TxCreationKeysDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxCreationKeysDecodeErrorZ), "LDKCResult_TxCreationKeysDecodeErrorZ");
        *ret_conv = CResult_TxCreationKeysDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1TxCreationKeysDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_TxCreationKeysDecodeErrorZ* o_conv = (LDKCResult_TxCreationKeysDecodeErrorZ*)(o & ~1);
+       LDKCResult_TxCreationKeysDecodeErrorZ* o_conv = (LDKCResult_TxCreationKeysDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_TxCreationKeysDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1TxCreationKeysDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_TxCreationKeysDecodeErrorZ _res_conv = *(LDKCResult_TxCreationKeysDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_TxCreationKeysDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_TxCreationKeysDecodeErrorZ_clone_ptr(LDKCResult_TxCreationKeysDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_TxCreationKeysDecodeErrorZ_clone_ptr(LDKCResult_TxCreationKeysDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_TxCreationKeysDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxCreationKeysDecodeErrorZ), "LDKCResult_TxCreationKeysDecodeErrorZ");
        *ret_conv = CResult_TxCreationKeysDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TxCreationKeysDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_TxCreationKeysDecodeErrorZ* arg_conv = (LDKCResult_TxCreationKeysDecodeErrorZ*)(arg & ~1);
+       LDKCResult_TxCreationKeysDecodeErrorZ* arg_conv = (LDKCResult_TxCreationKeysDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_TxCreationKeysDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TxCreationKeysDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_TxCreationKeysDecodeErrorZ* orig_conv = (LDKCResult_TxCreationKeysDecodeErrorZ*)(orig & ~1);
+       LDKCResult_TxCreationKeysDecodeErrorZ* orig_conv = (LDKCResult_TxCreationKeysDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_TxCreationKeysDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxCreationKeysDecodeErrorZ), "LDKCResult_TxCreationKeysDecodeErrorZ");
        *ret_conv = CResult_TxCreationKeysDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelPublicKeysDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKChannelPublicKeys o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = ChannelPublicKeys_clone(&o_conv);
        LDKCResult_ChannelPublicKeysDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelPublicKeysDecodeErrorZ), "LDKCResult_ChannelPublicKeysDecodeErrorZ");
        *ret_conv = CResult_ChannelPublicKeysDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelPublicKeysDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ChannelPublicKeysDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelPublicKeysDecodeErrorZ), "LDKCResult_ChannelPublicKeysDecodeErrorZ");
        *ret_conv = CResult_ChannelPublicKeysDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelPublicKeysDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_ChannelPublicKeysDecodeErrorZ* o_conv = (LDKCResult_ChannelPublicKeysDecodeErrorZ*)(o & ~1);
+       LDKCResult_ChannelPublicKeysDecodeErrorZ* o_conv = (LDKCResult_ChannelPublicKeysDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_ChannelPublicKeysDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelPublicKeysDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ChannelPublicKeysDecodeErrorZ _res_conv = *(LDKCResult_ChannelPublicKeysDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_ChannelPublicKeysDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_ChannelPublicKeysDecodeErrorZ_clone_ptr(LDKCResult_ChannelPublicKeysDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_ChannelPublicKeysDecodeErrorZ_clone_ptr(LDKCResult_ChannelPublicKeysDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ChannelPublicKeysDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelPublicKeysDecodeErrorZ), "LDKCResult_ChannelPublicKeysDecodeErrorZ");
        *ret_conv = CResult_ChannelPublicKeysDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelPublicKeysDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_ChannelPublicKeysDecodeErrorZ* arg_conv = (LDKCResult_ChannelPublicKeysDecodeErrorZ*)(arg & ~1);
+       LDKCResult_ChannelPublicKeysDecodeErrorZ* arg_conv = (LDKCResult_ChannelPublicKeysDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_ChannelPublicKeysDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelPublicKeysDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_ChannelPublicKeysDecodeErrorZ* orig_conv = (LDKCResult_ChannelPublicKeysDecodeErrorZ*)(orig & ~1);
+       LDKCResult_ChannelPublicKeysDecodeErrorZ* orig_conv = (LDKCResult_ChannelPublicKeysDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_ChannelPublicKeysDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelPublicKeysDecodeErrorZ), "LDKCResult_ChannelPublicKeysDecodeErrorZ");
        *ret_conv = CResult_ChannelPublicKeysDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TxCreationKeysErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKTxCreationKeys o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = TxCreationKeys_clone(&o_conv);
        LDKCResult_TxCreationKeysErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxCreationKeysErrorZ), "LDKCResult_TxCreationKeysErrorZ");
        *ret_conv = CResult_TxCreationKeysErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TxCreationKeysErrorZ_1err(JNIEnv *env, jclass clz, jclass e) {
        LDKSecp256k1Error e_conv = LDKSecp256k1Error_from_java(env, e);
        LDKCResult_TxCreationKeysErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxCreationKeysErrorZ), "LDKCResult_TxCreationKeysErrorZ");
        *ret_conv = CResult_TxCreationKeysErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1TxCreationKeysErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_TxCreationKeysErrorZ* o_conv = (LDKCResult_TxCreationKeysErrorZ*)(o & ~1);
+       LDKCResult_TxCreationKeysErrorZ* o_conv = (LDKCResult_TxCreationKeysErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_TxCreationKeysErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1TxCreationKeysErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_TxCreationKeysErrorZ _res_conv = *(LDKCResult_TxCreationKeysErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_TxCreationKeysErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_TxCreationKeysErrorZ_clone_ptr(LDKCResult_TxCreationKeysErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_TxCreationKeysErrorZ_clone_ptr(LDKCResult_TxCreationKeysErrorZ *NONNULL_PTR arg) {
        LDKCResult_TxCreationKeysErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxCreationKeysErrorZ), "LDKCResult_TxCreationKeysErrorZ");
        *ret_conv = CResult_TxCreationKeysErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TxCreationKeysErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_TxCreationKeysErrorZ* arg_conv = (LDKCResult_TxCreationKeysErrorZ*)(arg & ~1);
+       LDKCResult_TxCreationKeysErrorZ* arg_conv = (LDKCResult_TxCreationKeysErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_TxCreationKeysErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TxCreationKeysErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_TxCreationKeysErrorZ* orig_conv = (LDKCResult_TxCreationKeysErrorZ*)(orig & ~1);
+       LDKCResult_TxCreationKeysErrorZ* orig_conv = (LDKCResult_TxCreationKeysErrorZ*)untag_ptr(orig);
        LDKCResult_TxCreationKeysErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxCreationKeysErrorZ), "LDKCResult_TxCreationKeysErrorZ");
        *ret_conv = CResult_TxCreationKeysErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1u32Z_1some(JNIEnv *env, jclass clz, int32_t o) {
        LDKCOption_u32Z *ret_copy = MALLOC(sizeof(LDKCOption_u32Z), "LDKCOption_u32Z");
        *ret_copy = COption_u32Z_some(o);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1u32Z_1none(JNIEnv *env, jclass clz) {
        LDKCOption_u32Z *ret_copy = MALLOC(sizeof(LDKCOption_u32Z), "LDKCOption_u32Z");
        *ret_copy = COption_u32Z_none();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1u32Z_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_u32Z _res_conv = *(LDKCOption_u32Z*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        COption_u32Z_free(_res_conv);
 }
 
-static inline uintptr_t COption_u32Z_clone_ptr(LDKCOption_u32Z *NONNULL_PTR arg) {
+static inline uint64_t COption_u32Z_clone_ptr(LDKCOption_u32Z *NONNULL_PTR arg) {
        LDKCOption_u32Z *ret_copy = MALLOC(sizeof(LDKCOption_u32Z), "LDKCOption_u32Z");
        *ret_copy = COption_u32Z_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1u32Z_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCOption_u32Z* arg_conv = (LDKCOption_u32Z*)arg;
+       LDKCOption_u32Z* arg_conv = (LDKCOption_u32Z*)untag_ptr(arg);
        int64_t ret_conv = COption_u32Z_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1u32Z_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCOption_u32Z* orig_conv = (LDKCOption_u32Z*)orig;
+       LDKCOption_u32Z* orig_conv = (LDKCOption_u32Z*)untag_ptr(orig);
        LDKCOption_u32Z *ret_copy = MALLOC(sizeof(LDKCOption_u32Z), "LDKCOption_u32Z");
        *ret_copy = COption_u32Z_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1HTLCOutputInCommitmentDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKHTLCOutputInCommitment o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = HTLCOutputInCommitment_clone(&o_conv);
        LDKCResult_HTLCOutputInCommitmentDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HTLCOutputInCommitmentDecodeErrorZ), "LDKCResult_HTLCOutputInCommitmentDecodeErrorZ");
        *ret_conv = CResult_HTLCOutputInCommitmentDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1HTLCOutputInCommitmentDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_HTLCOutputInCommitmentDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HTLCOutputInCommitmentDecodeErrorZ), "LDKCResult_HTLCOutputInCommitmentDecodeErrorZ");
        *ret_conv = CResult_HTLCOutputInCommitmentDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1HTLCOutputInCommitmentDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_HTLCOutputInCommitmentDecodeErrorZ* o_conv = (LDKCResult_HTLCOutputInCommitmentDecodeErrorZ*)(o & ~1);
+       LDKCResult_HTLCOutputInCommitmentDecodeErrorZ* o_conv = (LDKCResult_HTLCOutputInCommitmentDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_HTLCOutputInCommitmentDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1HTLCOutputInCommitmentDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_HTLCOutputInCommitmentDecodeErrorZ _res_conv = *(LDKCResult_HTLCOutputInCommitmentDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_HTLCOutputInCommitmentDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_HTLCOutputInCommitmentDecodeErrorZ_clone_ptr(LDKCResult_HTLCOutputInCommitmentDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_HTLCOutputInCommitmentDecodeErrorZ_clone_ptr(LDKCResult_HTLCOutputInCommitmentDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_HTLCOutputInCommitmentDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HTLCOutputInCommitmentDecodeErrorZ), "LDKCResult_HTLCOutputInCommitmentDecodeErrorZ");
        *ret_conv = CResult_HTLCOutputInCommitmentDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1HTLCOutputInCommitmentDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_HTLCOutputInCommitmentDecodeErrorZ* arg_conv = (LDKCResult_HTLCOutputInCommitmentDecodeErrorZ*)(arg & ~1);
+       LDKCResult_HTLCOutputInCommitmentDecodeErrorZ* arg_conv = (LDKCResult_HTLCOutputInCommitmentDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_HTLCOutputInCommitmentDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1HTLCOutputInCommitmentDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_HTLCOutputInCommitmentDecodeErrorZ* orig_conv = (LDKCResult_HTLCOutputInCommitmentDecodeErrorZ*)(orig & ~1);
+       LDKCResult_HTLCOutputInCommitmentDecodeErrorZ* orig_conv = (LDKCResult_HTLCOutputInCommitmentDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_HTLCOutputInCommitmentDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HTLCOutputInCommitmentDecodeErrorZ), "LDKCResult_HTLCOutputInCommitmentDecodeErrorZ");
        *ret_conv = CResult_HTLCOutputInCommitmentDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_COption_1NoneZ_1some(JNIEnv *env, jclass clz) {
@@ -15375,112 +14079,112 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1NoneZ_1free(JNIEnv *e
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyChannelTransactionParametersDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKCounterpartyChannelTransactionParameters o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = CounterpartyChannelTransactionParameters_clone(&o_conv);
        LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ), "LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ");
        *ret_conv = CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyChannelTransactionParametersDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ), "LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ");
        *ret_conv = CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyChannelTransactionParametersDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ* o_conv = (LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ*)(o & ~1);
+       LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ* o_conv = (LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyChannelTransactionParametersDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ _res_conv = *(LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_clone_ptr(LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_clone_ptr(LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ), "LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ");
        *ret_conv = CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyChannelTransactionParametersDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ* arg_conv = (LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ*)(arg & ~1);
+       LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ* arg_conv = (LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyChannelTransactionParametersDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ* orig_conv = (LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ*)(orig & ~1);
+       LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ* orig_conv = (LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ), "LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ");
        *ret_conv = CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelTransactionParametersDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKChannelTransactionParameters o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = ChannelTransactionParameters_clone(&o_conv);
        LDKCResult_ChannelTransactionParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelTransactionParametersDecodeErrorZ), "LDKCResult_ChannelTransactionParametersDecodeErrorZ");
        *ret_conv = CResult_ChannelTransactionParametersDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelTransactionParametersDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ChannelTransactionParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelTransactionParametersDecodeErrorZ), "LDKCResult_ChannelTransactionParametersDecodeErrorZ");
        *ret_conv = CResult_ChannelTransactionParametersDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelTransactionParametersDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_ChannelTransactionParametersDecodeErrorZ* o_conv = (LDKCResult_ChannelTransactionParametersDecodeErrorZ*)(o & ~1);
+       LDKCResult_ChannelTransactionParametersDecodeErrorZ* o_conv = (LDKCResult_ChannelTransactionParametersDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_ChannelTransactionParametersDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelTransactionParametersDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ChannelTransactionParametersDecodeErrorZ _res_conv = *(LDKCResult_ChannelTransactionParametersDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_ChannelTransactionParametersDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_ChannelTransactionParametersDecodeErrorZ_clone_ptr(LDKCResult_ChannelTransactionParametersDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_ChannelTransactionParametersDecodeErrorZ_clone_ptr(LDKCResult_ChannelTransactionParametersDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ChannelTransactionParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelTransactionParametersDecodeErrorZ), "LDKCResult_ChannelTransactionParametersDecodeErrorZ");
        *ret_conv = CResult_ChannelTransactionParametersDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelTransactionParametersDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_ChannelTransactionParametersDecodeErrorZ* arg_conv = (LDKCResult_ChannelTransactionParametersDecodeErrorZ*)(arg & ~1);
+       LDKCResult_ChannelTransactionParametersDecodeErrorZ* arg_conv = (LDKCResult_ChannelTransactionParametersDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_ChannelTransactionParametersDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelTransactionParametersDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_ChannelTransactionParametersDecodeErrorZ* orig_conv = (LDKCResult_ChannelTransactionParametersDecodeErrorZ*)(orig & ~1);
+       LDKCResult_ChannelTransactionParametersDecodeErrorZ* orig_conv = (LDKCResult_ChannelTransactionParametersDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_ChannelTransactionParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelTransactionParametersDecodeErrorZ), "LDKCResult_ChannelTransactionParametersDecodeErrorZ");
        *ret_conv = CResult_ChannelTransactionParametersDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1SignatureZ_1free(JNIEnv *env, jclass clz, jobjectArray _res) {
@@ -15502,230 +14206,232 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1SignatureZ_1free(JNIEnv
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1HolderCommitmentTransactionDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKHolderCommitmentTransaction o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = HolderCommitmentTransaction_clone(&o_conv);
        LDKCResult_HolderCommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HolderCommitmentTransactionDecodeErrorZ), "LDKCResult_HolderCommitmentTransactionDecodeErrorZ");
        *ret_conv = CResult_HolderCommitmentTransactionDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1HolderCommitmentTransactionDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_HolderCommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HolderCommitmentTransactionDecodeErrorZ), "LDKCResult_HolderCommitmentTransactionDecodeErrorZ");
        *ret_conv = CResult_HolderCommitmentTransactionDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1HolderCommitmentTransactionDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_HolderCommitmentTransactionDecodeErrorZ* o_conv = (LDKCResult_HolderCommitmentTransactionDecodeErrorZ*)(o & ~1);
+       LDKCResult_HolderCommitmentTransactionDecodeErrorZ* o_conv = (LDKCResult_HolderCommitmentTransactionDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_HolderCommitmentTransactionDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1HolderCommitmentTransactionDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_HolderCommitmentTransactionDecodeErrorZ _res_conv = *(LDKCResult_HolderCommitmentTransactionDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_HolderCommitmentTransactionDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_HolderCommitmentTransactionDecodeErrorZ_clone_ptr(LDKCResult_HolderCommitmentTransactionDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_HolderCommitmentTransactionDecodeErrorZ_clone_ptr(LDKCResult_HolderCommitmentTransactionDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_HolderCommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HolderCommitmentTransactionDecodeErrorZ), "LDKCResult_HolderCommitmentTransactionDecodeErrorZ");
        *ret_conv = CResult_HolderCommitmentTransactionDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1HolderCommitmentTransactionDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_HolderCommitmentTransactionDecodeErrorZ* arg_conv = (LDKCResult_HolderCommitmentTransactionDecodeErrorZ*)(arg & ~1);
+       LDKCResult_HolderCommitmentTransactionDecodeErrorZ* arg_conv = (LDKCResult_HolderCommitmentTransactionDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_HolderCommitmentTransactionDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1HolderCommitmentTransactionDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_HolderCommitmentTransactionDecodeErrorZ* orig_conv = (LDKCResult_HolderCommitmentTransactionDecodeErrorZ*)(orig & ~1);
+       LDKCResult_HolderCommitmentTransactionDecodeErrorZ* orig_conv = (LDKCResult_HolderCommitmentTransactionDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_HolderCommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HolderCommitmentTransactionDecodeErrorZ), "LDKCResult_HolderCommitmentTransactionDecodeErrorZ");
        *ret_conv = CResult_HolderCommitmentTransactionDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1BuiltCommitmentTransactionDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKBuiltCommitmentTransaction o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = BuiltCommitmentTransaction_clone(&o_conv);
        LDKCResult_BuiltCommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_BuiltCommitmentTransactionDecodeErrorZ), "LDKCResult_BuiltCommitmentTransactionDecodeErrorZ");
        *ret_conv = CResult_BuiltCommitmentTransactionDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1BuiltCommitmentTransactionDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_BuiltCommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_BuiltCommitmentTransactionDecodeErrorZ), "LDKCResult_BuiltCommitmentTransactionDecodeErrorZ");
        *ret_conv = CResult_BuiltCommitmentTransactionDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1BuiltCommitmentTransactionDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_BuiltCommitmentTransactionDecodeErrorZ* o_conv = (LDKCResult_BuiltCommitmentTransactionDecodeErrorZ*)(o & ~1);
+       LDKCResult_BuiltCommitmentTransactionDecodeErrorZ* o_conv = (LDKCResult_BuiltCommitmentTransactionDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_BuiltCommitmentTransactionDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1BuiltCommitmentTransactionDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_BuiltCommitmentTransactionDecodeErrorZ _res_conv = *(LDKCResult_BuiltCommitmentTransactionDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_BuiltCommitmentTransactionDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_BuiltCommitmentTransactionDecodeErrorZ_clone_ptr(LDKCResult_BuiltCommitmentTransactionDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_BuiltCommitmentTransactionDecodeErrorZ_clone_ptr(LDKCResult_BuiltCommitmentTransactionDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_BuiltCommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_BuiltCommitmentTransactionDecodeErrorZ), "LDKCResult_BuiltCommitmentTransactionDecodeErrorZ");
        *ret_conv = CResult_BuiltCommitmentTransactionDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1BuiltCommitmentTransactionDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_BuiltCommitmentTransactionDecodeErrorZ* arg_conv = (LDKCResult_BuiltCommitmentTransactionDecodeErrorZ*)(arg & ~1);
+       LDKCResult_BuiltCommitmentTransactionDecodeErrorZ* arg_conv = (LDKCResult_BuiltCommitmentTransactionDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_BuiltCommitmentTransactionDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1BuiltCommitmentTransactionDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_BuiltCommitmentTransactionDecodeErrorZ* orig_conv = (LDKCResult_BuiltCommitmentTransactionDecodeErrorZ*)(orig & ~1);
+       LDKCResult_BuiltCommitmentTransactionDecodeErrorZ* orig_conv = (LDKCResult_BuiltCommitmentTransactionDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_BuiltCommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_BuiltCommitmentTransactionDecodeErrorZ), "LDKCResult_BuiltCommitmentTransactionDecodeErrorZ");
        *ret_conv = CResult_BuiltCommitmentTransactionDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TrustedClosingTransactionNoneZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKTrustedClosingTransaction o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        // WARNING: we need a move here but no clone is available for LDKTrustedClosingTransaction
+       
        LDKCResult_TrustedClosingTransactionNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_TrustedClosingTransactionNoneZ), "LDKCResult_TrustedClosingTransactionNoneZ");
        *ret_conv = CResult_TrustedClosingTransactionNoneZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TrustedClosingTransactionNoneZ_1err(JNIEnv *env, jclass clz) {
        LDKCResult_TrustedClosingTransactionNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_TrustedClosingTransactionNoneZ), "LDKCResult_TrustedClosingTransactionNoneZ");
        *ret_conv = CResult_TrustedClosingTransactionNoneZ_err();
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1TrustedClosingTransactionNoneZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_TrustedClosingTransactionNoneZ* o_conv = (LDKCResult_TrustedClosingTransactionNoneZ*)(o & ~1);
+       LDKCResult_TrustedClosingTransactionNoneZ* o_conv = (LDKCResult_TrustedClosingTransactionNoneZ*)untag_ptr(o);
        jboolean ret_conv = CResult_TrustedClosingTransactionNoneZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1TrustedClosingTransactionNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_TrustedClosingTransactionNoneZ _res_conv = *(LDKCResult_TrustedClosingTransactionNoneZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_TrustedClosingTransactionNoneZ_free(_res_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CommitmentTransactionDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKCommitmentTransaction o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = CommitmentTransaction_clone(&o_conv);
        LDKCResult_CommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CommitmentTransactionDecodeErrorZ), "LDKCResult_CommitmentTransactionDecodeErrorZ");
        *ret_conv = CResult_CommitmentTransactionDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CommitmentTransactionDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_CommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CommitmentTransactionDecodeErrorZ), "LDKCResult_CommitmentTransactionDecodeErrorZ");
        *ret_conv = CResult_CommitmentTransactionDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1CommitmentTransactionDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_CommitmentTransactionDecodeErrorZ* o_conv = (LDKCResult_CommitmentTransactionDecodeErrorZ*)(o & ~1);
+       LDKCResult_CommitmentTransactionDecodeErrorZ* o_conv = (LDKCResult_CommitmentTransactionDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_CommitmentTransactionDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1CommitmentTransactionDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_CommitmentTransactionDecodeErrorZ _res_conv = *(LDKCResult_CommitmentTransactionDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_CommitmentTransactionDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_CommitmentTransactionDecodeErrorZ_clone_ptr(LDKCResult_CommitmentTransactionDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_CommitmentTransactionDecodeErrorZ_clone_ptr(LDKCResult_CommitmentTransactionDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_CommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CommitmentTransactionDecodeErrorZ), "LDKCResult_CommitmentTransactionDecodeErrorZ");
        *ret_conv = CResult_CommitmentTransactionDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CommitmentTransactionDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_CommitmentTransactionDecodeErrorZ* arg_conv = (LDKCResult_CommitmentTransactionDecodeErrorZ*)(arg & ~1);
+       LDKCResult_CommitmentTransactionDecodeErrorZ* arg_conv = (LDKCResult_CommitmentTransactionDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_CommitmentTransactionDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CommitmentTransactionDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_CommitmentTransactionDecodeErrorZ* orig_conv = (LDKCResult_CommitmentTransactionDecodeErrorZ*)(orig & ~1);
+       LDKCResult_CommitmentTransactionDecodeErrorZ* orig_conv = (LDKCResult_CommitmentTransactionDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_CommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CommitmentTransactionDecodeErrorZ), "LDKCResult_CommitmentTransactionDecodeErrorZ");
        *ret_conv = CResult_CommitmentTransactionDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TrustedCommitmentTransactionNoneZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKTrustedCommitmentTransaction o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        // WARNING: we need a move here but no clone is available for LDKTrustedCommitmentTransaction
+       
        LDKCResult_TrustedCommitmentTransactionNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_TrustedCommitmentTransactionNoneZ), "LDKCResult_TrustedCommitmentTransactionNoneZ");
        *ret_conv = CResult_TrustedCommitmentTransactionNoneZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TrustedCommitmentTransactionNoneZ_1err(JNIEnv *env, jclass clz) {
        LDKCResult_TrustedCommitmentTransactionNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_TrustedCommitmentTransactionNoneZ), "LDKCResult_TrustedCommitmentTransactionNoneZ");
        *ret_conv = CResult_TrustedCommitmentTransactionNoneZ_err();
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1TrustedCommitmentTransactionNoneZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_TrustedCommitmentTransactionNoneZ* o_conv = (LDKCResult_TrustedCommitmentTransactionNoneZ*)(o & ~1);
+       LDKCResult_TrustedCommitmentTransactionNoneZ* o_conv = (LDKCResult_TrustedCommitmentTransactionNoneZ*)untag_ptr(o);
        jboolean ret_conv = CResult_TrustedCommitmentTransactionNoneZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1TrustedCommitmentTransactionNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_TrustedCommitmentTransactionNoneZ _res_conv = *(LDKCResult_TrustedCommitmentTransactionNoneZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_TrustedCommitmentTransactionNoneZ_free(_res_conv);
 }
 
@@ -15745,257 +14451,257 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1SignatureZNo
        }
        LDKCResult_CVec_SignatureZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_SignatureZNoneZ), "LDKCResult_CVec_SignatureZNoneZ");
        *ret_conv = CResult_CVec_SignatureZNoneZ_ok(o_constr);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1SignatureZNoneZ_1err(JNIEnv *env, jclass clz) {
        LDKCResult_CVec_SignatureZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_SignatureZNoneZ), "LDKCResult_CVec_SignatureZNoneZ");
        *ret_conv = CResult_CVec_SignatureZNoneZ_err();
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1SignatureZNoneZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_CVec_SignatureZNoneZ* o_conv = (LDKCResult_CVec_SignatureZNoneZ*)(o & ~1);
+       LDKCResult_CVec_SignatureZNoneZ* o_conv = (LDKCResult_CVec_SignatureZNoneZ*)untag_ptr(o);
        jboolean ret_conv = CResult_CVec_SignatureZNoneZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1SignatureZNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_CVec_SignatureZNoneZ _res_conv = *(LDKCResult_CVec_SignatureZNoneZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_CVec_SignatureZNoneZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_CVec_SignatureZNoneZ_clone_ptr(LDKCResult_CVec_SignatureZNoneZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_CVec_SignatureZNoneZ_clone_ptr(LDKCResult_CVec_SignatureZNoneZ *NONNULL_PTR arg) {
        LDKCResult_CVec_SignatureZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_SignatureZNoneZ), "LDKCResult_CVec_SignatureZNoneZ");
        *ret_conv = CResult_CVec_SignatureZNoneZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1SignatureZNoneZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_CVec_SignatureZNoneZ* arg_conv = (LDKCResult_CVec_SignatureZNoneZ*)(arg & ~1);
+       LDKCResult_CVec_SignatureZNoneZ* arg_conv = (LDKCResult_CVec_SignatureZNoneZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_CVec_SignatureZNoneZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1SignatureZNoneZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_CVec_SignatureZNoneZ* orig_conv = (LDKCResult_CVec_SignatureZNoneZ*)(orig & ~1);
+       LDKCResult_CVec_SignatureZNoneZ* orig_conv = (LDKCResult_CVec_SignatureZNoneZ*)untag_ptr(orig);
        LDKCResult_CVec_SignatureZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_SignatureZNoneZ), "LDKCResult_CVec_SignatureZNoneZ");
        *ret_conv = CResult_CVec_SignatureZNoneZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownScriptDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKShutdownScript o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = ShutdownScript_clone(&o_conv);
        LDKCResult_ShutdownScriptDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownScriptDecodeErrorZ), "LDKCResult_ShutdownScriptDecodeErrorZ");
        *ret_conv = CResult_ShutdownScriptDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownScriptDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ShutdownScriptDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownScriptDecodeErrorZ), "LDKCResult_ShutdownScriptDecodeErrorZ");
        *ret_conv = CResult_ShutdownScriptDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownScriptDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_ShutdownScriptDecodeErrorZ* o_conv = (LDKCResult_ShutdownScriptDecodeErrorZ*)(o & ~1);
+       LDKCResult_ShutdownScriptDecodeErrorZ* o_conv = (LDKCResult_ShutdownScriptDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_ShutdownScriptDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownScriptDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ShutdownScriptDecodeErrorZ _res_conv = *(LDKCResult_ShutdownScriptDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_ShutdownScriptDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_ShutdownScriptDecodeErrorZ_clone_ptr(LDKCResult_ShutdownScriptDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_ShutdownScriptDecodeErrorZ_clone_ptr(LDKCResult_ShutdownScriptDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ShutdownScriptDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownScriptDecodeErrorZ), "LDKCResult_ShutdownScriptDecodeErrorZ");
        *ret_conv = CResult_ShutdownScriptDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownScriptDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_ShutdownScriptDecodeErrorZ* arg_conv = (LDKCResult_ShutdownScriptDecodeErrorZ*)(arg & ~1);
+       LDKCResult_ShutdownScriptDecodeErrorZ* arg_conv = (LDKCResult_ShutdownScriptDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_ShutdownScriptDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownScriptDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_ShutdownScriptDecodeErrorZ* orig_conv = (LDKCResult_ShutdownScriptDecodeErrorZ*)(orig & ~1);
+       LDKCResult_ShutdownScriptDecodeErrorZ* orig_conv = (LDKCResult_ShutdownScriptDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_ShutdownScriptDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownScriptDecodeErrorZ), "LDKCResult_ShutdownScriptDecodeErrorZ");
        *ret_conv = CResult_ShutdownScriptDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownScriptInvalidShutdownScriptZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKShutdownScript o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = ShutdownScript_clone(&o_conv);
        LDKCResult_ShutdownScriptInvalidShutdownScriptZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownScriptInvalidShutdownScriptZ), "LDKCResult_ShutdownScriptInvalidShutdownScriptZ");
        *ret_conv = CResult_ShutdownScriptInvalidShutdownScriptZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownScriptInvalidShutdownScriptZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKInvalidShutdownScript e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = InvalidShutdownScript_clone(&e_conv);
        LDKCResult_ShutdownScriptInvalidShutdownScriptZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownScriptInvalidShutdownScriptZ), "LDKCResult_ShutdownScriptInvalidShutdownScriptZ");
        *ret_conv = CResult_ShutdownScriptInvalidShutdownScriptZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownScriptInvalidShutdownScriptZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_ShutdownScriptInvalidShutdownScriptZ* o_conv = (LDKCResult_ShutdownScriptInvalidShutdownScriptZ*)(o & ~1);
+       LDKCResult_ShutdownScriptInvalidShutdownScriptZ* o_conv = (LDKCResult_ShutdownScriptInvalidShutdownScriptZ*)untag_ptr(o);
        jboolean ret_conv = CResult_ShutdownScriptInvalidShutdownScriptZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownScriptInvalidShutdownScriptZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ShutdownScriptInvalidShutdownScriptZ _res_conv = *(LDKCResult_ShutdownScriptInvalidShutdownScriptZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_ShutdownScriptInvalidShutdownScriptZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_ShutdownScriptInvalidShutdownScriptZ_clone_ptr(LDKCResult_ShutdownScriptInvalidShutdownScriptZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_ShutdownScriptInvalidShutdownScriptZ_clone_ptr(LDKCResult_ShutdownScriptInvalidShutdownScriptZ *NONNULL_PTR arg) {
        LDKCResult_ShutdownScriptInvalidShutdownScriptZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownScriptInvalidShutdownScriptZ), "LDKCResult_ShutdownScriptInvalidShutdownScriptZ");
        *ret_conv = CResult_ShutdownScriptInvalidShutdownScriptZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownScriptInvalidShutdownScriptZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_ShutdownScriptInvalidShutdownScriptZ* arg_conv = (LDKCResult_ShutdownScriptInvalidShutdownScriptZ*)(arg & ~1);
+       LDKCResult_ShutdownScriptInvalidShutdownScriptZ* arg_conv = (LDKCResult_ShutdownScriptInvalidShutdownScriptZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_ShutdownScriptInvalidShutdownScriptZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownScriptInvalidShutdownScriptZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_ShutdownScriptInvalidShutdownScriptZ* orig_conv = (LDKCResult_ShutdownScriptInvalidShutdownScriptZ*)(orig & ~1);
+       LDKCResult_ShutdownScriptInvalidShutdownScriptZ* orig_conv = (LDKCResult_ShutdownScriptInvalidShutdownScriptZ*)untag_ptr(orig);
        LDKCResult_ShutdownScriptInvalidShutdownScriptZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownScriptInvalidShutdownScriptZ), "LDKCResult_ShutdownScriptInvalidShutdownScriptZ");
        *ret_conv = CResult_ShutdownScriptInvalidShutdownScriptZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneErrorZ_1ok(JNIEnv *env, jclass clz) {
        LDKCResult_NoneErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneErrorZ), "LDKCResult_NoneErrorZ");
        *ret_conv = CResult_NoneErrorZ_ok();
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneErrorZ_1err(JNIEnv *env, jclass clz, jclass e) {
        LDKIOError e_conv = LDKIOError_from_java(env, e);
        LDKCResult_NoneErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneErrorZ), "LDKCResult_NoneErrorZ");
        *ret_conv = CResult_NoneErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1NoneErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_NoneErrorZ* o_conv = (LDKCResult_NoneErrorZ*)(o & ~1);
+       LDKCResult_NoneErrorZ* o_conv = (LDKCResult_NoneErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_NoneErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NoneErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NoneErrorZ _res_conv = *(LDKCResult_NoneErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_NoneErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_NoneErrorZ_clone_ptr(LDKCResult_NoneErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_NoneErrorZ_clone_ptr(LDKCResult_NoneErrorZ *NONNULL_PTR arg) {
        LDKCResult_NoneErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneErrorZ), "LDKCResult_NoneErrorZ");
        *ret_conv = CResult_NoneErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_NoneErrorZ* arg_conv = (LDKCResult_NoneErrorZ*)(arg & ~1);
+       LDKCResult_NoneErrorZ* arg_conv = (LDKCResult_NoneErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_NoneErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_NoneErrorZ* orig_conv = (LDKCResult_NoneErrorZ*)(orig & ~1);
+       LDKCResult_NoneErrorZ* orig_conv = (LDKCResult_NoneErrorZ*)untag_ptr(orig);
        LDKCResult_NoneErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneErrorZ), "LDKCResult_NoneErrorZ");
        *ret_conv = CResult_NoneErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHopDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKRouteHop o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = RouteHop_clone(&o_conv);
        LDKCResult_RouteHopDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHopDecodeErrorZ), "LDKCResult_RouteHopDecodeErrorZ");
        *ret_conv = CResult_RouteHopDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHopDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_RouteHopDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHopDecodeErrorZ), "LDKCResult_RouteHopDecodeErrorZ");
        *ret_conv = CResult_RouteHopDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHopDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_RouteHopDecodeErrorZ* o_conv = (LDKCResult_RouteHopDecodeErrorZ*)(o & ~1);
+       LDKCResult_RouteHopDecodeErrorZ* o_conv = (LDKCResult_RouteHopDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_RouteHopDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHopDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_RouteHopDecodeErrorZ _res_conv = *(LDKCResult_RouteHopDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_RouteHopDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_RouteHopDecodeErrorZ_clone_ptr(LDKCResult_RouteHopDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_RouteHopDecodeErrorZ_clone_ptr(LDKCResult_RouteHopDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_RouteHopDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHopDecodeErrorZ), "LDKCResult_RouteHopDecodeErrorZ");
        *ret_conv = CResult_RouteHopDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHopDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_RouteHopDecodeErrorZ* arg_conv = (LDKCResult_RouteHopDecodeErrorZ*)(arg & ~1);
+       LDKCResult_RouteHopDecodeErrorZ* arg_conv = (LDKCResult_RouteHopDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_RouteHopDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHopDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_RouteHopDecodeErrorZ* orig_conv = (LDKCResult_RouteHopDecodeErrorZ*)(orig & ~1);
+       LDKCResult_RouteHopDecodeErrorZ* orig_conv = (LDKCResult_RouteHopDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_RouteHopDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHopDecodeErrorZ), "LDKCResult_RouteHopDecodeErrorZ");
        *ret_conv = CResult_RouteHopDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1RouteHopZ_1free(JNIEnv *env, jclass clz, int64_tArray _res) {
@@ -16009,8 +14715,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1RouteHopZ_1free(JNIEnv *
        for (size_t k = 0; k < _res_constr.datalen; k++) {
                int64_t _res_conv_10 = _res_vals[k];
                LDKRouteHop _res_conv_10_conv;
-               _res_conv_10_conv.inner = (void*)(_res_conv_10 & (~1));
-               _res_conv_10_conv.is_owned = (_res_conv_10 & 1) || (_res_conv_10 == 0);
+               _res_conv_10_conv.inner = untag_ptr(_res_conv_10);
+               _res_conv_10_conv.is_owned = ptr_is_owned(_res_conv_10);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(_res_conv_10_conv);
                _res_constr.data[k] = _res_conv_10_conv;
        }
@@ -16037,8 +14743,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1CVec_1RouteHopZZ_1free(J
                for (size_t k = 0; k < _res_conv_12_constr.datalen; k++) {
                        int64_t _res_conv_12_conv_10 = _res_conv_12_vals[k];
                        LDKRouteHop _res_conv_12_conv_10_conv;
-                       _res_conv_12_conv_10_conv.inner = (void*)(_res_conv_12_conv_10 & (~1));
-                       _res_conv_12_conv_10_conv.is_owned = (_res_conv_12_conv_10 & 1) || (_res_conv_12_conv_10 == 0);
+                       _res_conv_12_conv_10_conv.inner = untag_ptr(_res_conv_12_conv_10);
+                       _res_conv_12_conv_10_conv.is_owned = ptr_is_owned(_res_conv_12_conv_10);
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(_res_conv_12_conv_10_conv);
                        _res_conv_12_constr.data[k] = _res_conv_12_conv_10_conv;
                }
@@ -16050,112 +14756,112 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1CVec_1RouteHopZZ_1free(J
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKRoute o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = Route_clone(&o_conv);
        LDKCResult_RouteDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteDecodeErrorZ), "LDKCResult_RouteDecodeErrorZ");
        *ret_conv = CResult_RouteDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_RouteDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteDecodeErrorZ), "LDKCResult_RouteDecodeErrorZ");
        *ret_conv = CResult_RouteDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1RouteDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_RouteDecodeErrorZ* o_conv = (LDKCResult_RouteDecodeErrorZ*)(o & ~1);
+       LDKCResult_RouteDecodeErrorZ* o_conv = (LDKCResult_RouteDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_RouteDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1RouteDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_RouteDecodeErrorZ _res_conv = *(LDKCResult_RouteDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_RouteDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_RouteDecodeErrorZ_clone_ptr(LDKCResult_RouteDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_RouteDecodeErrorZ_clone_ptr(LDKCResult_RouteDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_RouteDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteDecodeErrorZ), "LDKCResult_RouteDecodeErrorZ");
        *ret_conv = CResult_RouteDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_RouteDecodeErrorZ* arg_conv = (LDKCResult_RouteDecodeErrorZ*)(arg & ~1);
+       LDKCResult_RouteDecodeErrorZ* arg_conv = (LDKCResult_RouteDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_RouteDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_RouteDecodeErrorZ* orig_conv = (LDKCResult_RouteDecodeErrorZ*)(orig & ~1);
+       LDKCResult_RouteDecodeErrorZ* orig_conv = (LDKCResult_RouteDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_RouteDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteDecodeErrorZ), "LDKCResult_RouteDecodeErrorZ");
        *ret_conv = CResult_RouteDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteParametersDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKRouteParameters o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = RouteParameters_clone(&o_conv);
        LDKCResult_RouteParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteParametersDecodeErrorZ), "LDKCResult_RouteParametersDecodeErrorZ");
        *ret_conv = CResult_RouteParametersDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteParametersDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_RouteParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteParametersDecodeErrorZ), "LDKCResult_RouteParametersDecodeErrorZ");
        *ret_conv = CResult_RouteParametersDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1RouteParametersDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_RouteParametersDecodeErrorZ* o_conv = (LDKCResult_RouteParametersDecodeErrorZ*)(o & ~1);
+       LDKCResult_RouteParametersDecodeErrorZ* o_conv = (LDKCResult_RouteParametersDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_RouteParametersDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1RouteParametersDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_RouteParametersDecodeErrorZ _res_conv = *(LDKCResult_RouteParametersDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_RouteParametersDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_RouteParametersDecodeErrorZ_clone_ptr(LDKCResult_RouteParametersDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_RouteParametersDecodeErrorZ_clone_ptr(LDKCResult_RouteParametersDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_RouteParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteParametersDecodeErrorZ), "LDKCResult_RouteParametersDecodeErrorZ");
        *ret_conv = CResult_RouteParametersDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteParametersDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_RouteParametersDecodeErrorZ* arg_conv = (LDKCResult_RouteParametersDecodeErrorZ*)(arg & ~1);
+       LDKCResult_RouteParametersDecodeErrorZ* arg_conv = (LDKCResult_RouteParametersDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_RouteParametersDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteParametersDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_RouteParametersDecodeErrorZ* orig_conv = (LDKCResult_RouteParametersDecodeErrorZ*)(orig & ~1);
+       LDKCResult_RouteParametersDecodeErrorZ* orig_conv = (LDKCResult_RouteParametersDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_RouteParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteParametersDecodeErrorZ), "LDKCResult_RouteParametersDecodeErrorZ");
        *ret_conv = CResult_RouteParametersDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1RouteHintZ_1free(JNIEnv *env, jclass clz, int64_tArray _res) {
@@ -16169,8 +14875,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1RouteHintZ_1free(JNIEnv
        for (size_t l = 0; l < _res_constr.datalen; l++) {
                int64_t _res_conv_11 = _res_vals[l];
                LDKRouteHint _res_conv_11_conv;
-               _res_conv_11_conv.inner = (void*)(_res_conv_11 & (~1));
-               _res_conv_11_conv.is_owned = (_res_conv_11 & 1) || (_res_conv_11 == 0);
+               _res_conv_11_conv.inner = untag_ptr(_res_conv_11);
+               _res_conv_11_conv.is_owned = ptr_is_owned(_res_conv_11);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(_res_conv_11_conv);
                _res_constr.data[l] = _res_conv_11_conv;
        }
@@ -16181,43 +14887,43 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1RouteHintZ_1free(JNIEnv
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1u64Z_1some(JNIEnv *env, jclass clz, int64_t o) {
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = COption_u64Z_some(o);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1u64Z_1none(JNIEnv *env, jclass clz) {
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = COption_u64Z_none();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1u64Z_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_u64Z _res_conv = *(LDKCOption_u64Z*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        COption_u64Z_free(_res_conv);
 }
 
-static inline uintptr_t COption_u64Z_clone_ptr(LDKCOption_u64Z *NONNULL_PTR arg) {
+static inline uint64_t COption_u64Z_clone_ptr(LDKCOption_u64Z *NONNULL_PTR arg) {
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = COption_u64Z_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1u64Z_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCOption_u64Z* arg_conv = (LDKCOption_u64Z*)arg;
+       LDKCOption_u64Z* arg_conv = (LDKCOption_u64Z*)untag_ptr(arg);
        int64_t ret_conv = COption_u64Z_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1u64Z_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCOption_u64Z* orig_conv = (LDKCOption_u64Z*)orig;
+       LDKCOption_u64Z* orig_conv = (LDKCOption_u64Z*)untag_ptr(orig);
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = COption_u64Z_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -16239,57 +14945,57 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1u64Z_1free(JNIEnv *env,
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentParametersDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKPaymentParameters o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = PaymentParameters_clone(&o_conv);
        LDKCResult_PaymentParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentParametersDecodeErrorZ), "LDKCResult_PaymentParametersDecodeErrorZ");
        *ret_conv = CResult_PaymentParametersDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentParametersDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_PaymentParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentParametersDecodeErrorZ), "LDKCResult_PaymentParametersDecodeErrorZ");
        *ret_conv = CResult_PaymentParametersDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentParametersDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_PaymentParametersDecodeErrorZ* o_conv = (LDKCResult_PaymentParametersDecodeErrorZ*)(o & ~1);
+       LDKCResult_PaymentParametersDecodeErrorZ* o_conv = (LDKCResult_PaymentParametersDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_PaymentParametersDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentParametersDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_PaymentParametersDecodeErrorZ _res_conv = *(LDKCResult_PaymentParametersDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_PaymentParametersDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_PaymentParametersDecodeErrorZ_clone_ptr(LDKCResult_PaymentParametersDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_PaymentParametersDecodeErrorZ_clone_ptr(LDKCResult_PaymentParametersDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_PaymentParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentParametersDecodeErrorZ), "LDKCResult_PaymentParametersDecodeErrorZ");
        *ret_conv = CResult_PaymentParametersDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentParametersDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_PaymentParametersDecodeErrorZ* arg_conv = (LDKCResult_PaymentParametersDecodeErrorZ*)(arg & ~1);
+       LDKCResult_PaymentParametersDecodeErrorZ* arg_conv = (LDKCResult_PaymentParametersDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_PaymentParametersDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentParametersDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_PaymentParametersDecodeErrorZ* orig_conv = (LDKCResult_PaymentParametersDecodeErrorZ*)(orig & ~1);
+       LDKCResult_PaymentParametersDecodeErrorZ* orig_conv = (LDKCResult_PaymentParametersDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_PaymentParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentParametersDecodeErrorZ), "LDKCResult_PaymentParametersDecodeErrorZ");
        *ret_conv = CResult_PaymentParametersDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1RouteHintHopZ_1free(JNIEnv *env, jclass clz, int64_tArray _res) {
@@ -16303,8 +15009,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1RouteHintHopZ_1free(JNIE
        for (size_t o = 0; o < _res_constr.datalen; o++) {
                int64_t _res_conv_14 = _res_vals[o];
                LDKRouteHintHop _res_conv_14_conv;
-               _res_conv_14_conv.inner = (void*)(_res_conv_14 & (~1));
-               _res_conv_14_conv.is_owned = (_res_conv_14 & 1) || (_res_conv_14 == 0);
+               _res_conv_14_conv.inner = untag_ptr(_res_conv_14);
+               _res_conv_14_conv.is_owned = ptr_is_owned(_res_conv_14);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(_res_conv_14_conv);
                _res_constr.data[o] = _res_conv_14_conv;
        }
@@ -16314,112 +15020,112 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1RouteHintHopZ_1free(JNIE
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHintDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKRouteHint o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = RouteHint_clone(&o_conv);
        LDKCResult_RouteHintDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHintDecodeErrorZ), "LDKCResult_RouteHintDecodeErrorZ");
        *ret_conv = CResult_RouteHintDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHintDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_RouteHintDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHintDecodeErrorZ), "LDKCResult_RouteHintDecodeErrorZ");
        *ret_conv = CResult_RouteHintDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHintDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_RouteHintDecodeErrorZ* o_conv = (LDKCResult_RouteHintDecodeErrorZ*)(o & ~1);
+       LDKCResult_RouteHintDecodeErrorZ* o_conv = (LDKCResult_RouteHintDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_RouteHintDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHintDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_RouteHintDecodeErrorZ _res_conv = *(LDKCResult_RouteHintDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_RouteHintDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_RouteHintDecodeErrorZ_clone_ptr(LDKCResult_RouteHintDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_RouteHintDecodeErrorZ_clone_ptr(LDKCResult_RouteHintDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_RouteHintDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHintDecodeErrorZ), "LDKCResult_RouteHintDecodeErrorZ");
        *ret_conv = CResult_RouteHintDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHintDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_RouteHintDecodeErrorZ* arg_conv = (LDKCResult_RouteHintDecodeErrorZ*)(arg & ~1);
+       LDKCResult_RouteHintDecodeErrorZ* arg_conv = (LDKCResult_RouteHintDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_RouteHintDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHintDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_RouteHintDecodeErrorZ* orig_conv = (LDKCResult_RouteHintDecodeErrorZ*)(orig & ~1);
+       LDKCResult_RouteHintDecodeErrorZ* orig_conv = (LDKCResult_RouteHintDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_RouteHintDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHintDecodeErrorZ), "LDKCResult_RouteHintDecodeErrorZ");
        *ret_conv = CResult_RouteHintDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHintHopDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKRouteHintHop o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = RouteHintHop_clone(&o_conv);
        LDKCResult_RouteHintHopDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHintHopDecodeErrorZ), "LDKCResult_RouteHintHopDecodeErrorZ");
        *ret_conv = CResult_RouteHintHopDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHintHopDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_RouteHintHopDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHintHopDecodeErrorZ), "LDKCResult_RouteHintHopDecodeErrorZ");
        *ret_conv = CResult_RouteHintHopDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHintHopDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_RouteHintHopDecodeErrorZ* o_conv = (LDKCResult_RouteHintHopDecodeErrorZ*)(o & ~1);
+       LDKCResult_RouteHintHopDecodeErrorZ* o_conv = (LDKCResult_RouteHintHopDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_RouteHintHopDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHintHopDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_RouteHintHopDecodeErrorZ _res_conv = *(LDKCResult_RouteHintHopDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_RouteHintHopDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_RouteHintHopDecodeErrorZ_clone_ptr(LDKCResult_RouteHintHopDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_RouteHintHopDecodeErrorZ_clone_ptr(LDKCResult_RouteHintHopDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_RouteHintHopDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHintHopDecodeErrorZ), "LDKCResult_RouteHintHopDecodeErrorZ");
        *ret_conv = CResult_RouteHintHopDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHintHopDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_RouteHintHopDecodeErrorZ* arg_conv = (LDKCResult_RouteHintHopDecodeErrorZ*)(arg & ~1);
+       LDKCResult_RouteHintHopDecodeErrorZ* arg_conv = (LDKCResult_RouteHintHopDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_RouteHintHopDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHintHopDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_RouteHintHopDecodeErrorZ* orig_conv = (LDKCResult_RouteHintHopDecodeErrorZ*)(orig & ~1);
+       LDKCResult_RouteHintHopDecodeErrorZ* orig_conv = (LDKCResult_RouteHintHopDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_RouteHintHopDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHintHopDecodeErrorZ), "LDKCResult_RouteHintHopDecodeErrorZ");
        *ret_conv = CResult_RouteHintHopDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1ChannelDetailsZ_1free(JNIEnv *env, jclass clz, int64_tArray _res) {
@@ -16433,8 +15139,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1ChannelDetailsZ_1free(JN
        for (size_t q = 0; q < _res_constr.datalen; q++) {
                int64_t _res_conv_16 = _res_vals[q];
                LDKChannelDetails _res_conv_16_conv;
-               _res_conv_16_conv.inner = (void*)(_res_conv_16 & (~1));
-               _res_conv_16_conv.is_owned = (_res_conv_16 & 1) || (_res_conv_16 == 0);
+               _res_conv_16_conv.inner = untag_ptr(_res_conv_16);
+               _res_conv_16_conv.is_owned = ptr_is_owned(_res_conv_16);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(_res_conv_16_conv);
                _res_constr.data[q] = _res_conv_16_conv;
        }
@@ -16444,57 +15150,57 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1ChannelDetailsZ_1free(JN
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteLightningErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKRoute o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = Route_clone(&o_conv);
        LDKCResult_RouteLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteLightningErrorZ), "LDKCResult_RouteLightningErrorZ");
        *ret_conv = CResult_RouteLightningErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteLightningErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKLightningError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = LightningError_clone(&e_conv);
        LDKCResult_RouteLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteLightningErrorZ), "LDKCResult_RouteLightningErrorZ");
        *ret_conv = CResult_RouteLightningErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1RouteLightningErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_RouteLightningErrorZ* o_conv = (LDKCResult_RouteLightningErrorZ*)(o & ~1);
+       LDKCResult_RouteLightningErrorZ* o_conv = (LDKCResult_RouteLightningErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_RouteLightningErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1RouteLightningErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_RouteLightningErrorZ _res_conv = *(LDKCResult_RouteLightningErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_RouteLightningErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_RouteLightningErrorZ_clone_ptr(LDKCResult_RouteLightningErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_RouteLightningErrorZ_clone_ptr(LDKCResult_RouteLightningErrorZ *NONNULL_PTR arg) {
        LDKCResult_RouteLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteLightningErrorZ), "LDKCResult_RouteLightningErrorZ");
        *ret_conv = CResult_RouteLightningErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteLightningErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_RouteLightningErrorZ* arg_conv = (LDKCResult_RouteLightningErrorZ*)(arg & ~1);
+       LDKCResult_RouteLightningErrorZ* arg_conv = (LDKCResult_RouteLightningErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_RouteLightningErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteLightningErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_RouteLightningErrorZ* orig_conv = (LDKCResult_RouteLightningErrorZ*)(orig & ~1);
+       LDKCResult_RouteLightningErrorZ* orig_conv = (LDKCResult_RouteLightningErrorZ*)untag_ptr(orig);
        LDKCResult_RouteLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteLightningErrorZ), "LDKCResult_RouteLightningErrorZ");
        *ret_conv = CResult_RouteLightningErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1PublicKeyZ_1free(JNIEnv *env, jclass clz, jobjectArray _res) {
@@ -16515,305 +15221,305 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1PublicKeyZ_1free(JNIEnv
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentPurposeDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKPaymentPurpose o_conv = *(LDKPaymentPurpose*)(o_ptr);
-       o_conv = PaymentPurpose_clone((LDKPaymentPurpose*)(((uintptr_t)o) & ~1));
+       o_conv = PaymentPurpose_clone((LDKPaymentPurpose*)untag_ptr(o));
        LDKCResult_PaymentPurposeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentPurposeDecodeErrorZ), "LDKCResult_PaymentPurposeDecodeErrorZ");
        *ret_conv = CResult_PaymentPurposeDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentPurposeDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_PaymentPurposeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentPurposeDecodeErrorZ), "LDKCResult_PaymentPurposeDecodeErrorZ");
        *ret_conv = CResult_PaymentPurposeDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentPurposeDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_PaymentPurposeDecodeErrorZ* o_conv = (LDKCResult_PaymentPurposeDecodeErrorZ*)(o & ~1);
+       LDKCResult_PaymentPurposeDecodeErrorZ* o_conv = (LDKCResult_PaymentPurposeDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_PaymentPurposeDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentPurposeDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_PaymentPurposeDecodeErrorZ _res_conv = *(LDKCResult_PaymentPurposeDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_PaymentPurposeDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_PaymentPurposeDecodeErrorZ_clone_ptr(LDKCResult_PaymentPurposeDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_PaymentPurposeDecodeErrorZ_clone_ptr(LDKCResult_PaymentPurposeDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_PaymentPurposeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentPurposeDecodeErrorZ), "LDKCResult_PaymentPurposeDecodeErrorZ");
        *ret_conv = CResult_PaymentPurposeDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentPurposeDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_PaymentPurposeDecodeErrorZ* arg_conv = (LDKCResult_PaymentPurposeDecodeErrorZ*)(arg & ~1);
+       LDKCResult_PaymentPurposeDecodeErrorZ* arg_conv = (LDKCResult_PaymentPurposeDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_PaymentPurposeDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentPurposeDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_PaymentPurposeDecodeErrorZ* orig_conv = (LDKCResult_PaymentPurposeDecodeErrorZ*)(orig & ~1);
+       LDKCResult_PaymentPurposeDecodeErrorZ* orig_conv = (LDKCResult_PaymentPurposeDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_PaymentPurposeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentPurposeDecodeErrorZ), "LDKCResult_PaymentPurposeDecodeErrorZ");
        *ret_conv = CResult_PaymentPurposeDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1ClosureReasonZ_1some(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKClosureReason o_conv = *(LDKClosureReason*)(o_ptr);
-       o_conv = ClosureReason_clone((LDKClosureReason*)(((uintptr_t)o) & ~1));
+       o_conv = ClosureReason_clone((LDKClosureReason*)untag_ptr(o));
        LDKCOption_ClosureReasonZ *ret_copy = MALLOC(sizeof(LDKCOption_ClosureReasonZ), "LDKCOption_ClosureReasonZ");
        *ret_copy = COption_ClosureReasonZ_some(o_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1ClosureReasonZ_1none(JNIEnv *env, jclass clz) {
        LDKCOption_ClosureReasonZ *ret_copy = MALLOC(sizeof(LDKCOption_ClosureReasonZ), "LDKCOption_ClosureReasonZ");
        *ret_copy = COption_ClosureReasonZ_none();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1ClosureReasonZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_ClosureReasonZ _res_conv = *(LDKCOption_ClosureReasonZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        COption_ClosureReasonZ_free(_res_conv);
 }
 
-static inline uintptr_t COption_ClosureReasonZ_clone_ptr(LDKCOption_ClosureReasonZ *NONNULL_PTR arg) {
+static inline uint64_t COption_ClosureReasonZ_clone_ptr(LDKCOption_ClosureReasonZ *NONNULL_PTR arg) {
        LDKCOption_ClosureReasonZ *ret_copy = MALLOC(sizeof(LDKCOption_ClosureReasonZ), "LDKCOption_ClosureReasonZ");
        *ret_copy = COption_ClosureReasonZ_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1ClosureReasonZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCOption_ClosureReasonZ* arg_conv = (LDKCOption_ClosureReasonZ*)arg;
+       LDKCOption_ClosureReasonZ* arg_conv = (LDKCOption_ClosureReasonZ*)untag_ptr(arg);
        int64_t ret_conv = COption_ClosureReasonZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1ClosureReasonZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCOption_ClosureReasonZ* orig_conv = (LDKCOption_ClosureReasonZ*)orig;
+       LDKCOption_ClosureReasonZ* orig_conv = (LDKCOption_ClosureReasonZ*)untag_ptr(orig);
        LDKCOption_ClosureReasonZ *ret_copy = MALLOC(sizeof(LDKCOption_ClosureReasonZ), "LDKCOption_ClosureReasonZ");
        *ret_copy = COption_ClosureReasonZ_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1ClosureReasonZDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKCOption_ClosureReasonZ o_conv = *(LDKCOption_ClosureReasonZ*)(o_ptr);
-       o_conv = COption_ClosureReasonZ_clone((LDKCOption_ClosureReasonZ*)(((uintptr_t)o) & ~1));
+       o_conv = COption_ClosureReasonZ_clone((LDKCOption_ClosureReasonZ*)untag_ptr(o));
        LDKCResult_COption_ClosureReasonZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_ClosureReasonZDecodeErrorZ), "LDKCResult_COption_ClosureReasonZDecodeErrorZ");
        *ret_conv = CResult_COption_ClosureReasonZDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1ClosureReasonZDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_COption_ClosureReasonZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_ClosureReasonZDecodeErrorZ), "LDKCResult_COption_ClosureReasonZDecodeErrorZ");
        *ret_conv = CResult_COption_ClosureReasonZDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1ClosureReasonZDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_COption_ClosureReasonZDecodeErrorZ* o_conv = (LDKCResult_COption_ClosureReasonZDecodeErrorZ*)(o & ~1);
+       LDKCResult_COption_ClosureReasonZDecodeErrorZ* o_conv = (LDKCResult_COption_ClosureReasonZDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_COption_ClosureReasonZDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1ClosureReasonZDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_COption_ClosureReasonZDecodeErrorZ _res_conv = *(LDKCResult_COption_ClosureReasonZDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_COption_ClosureReasonZDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_COption_ClosureReasonZDecodeErrorZ_clone_ptr(LDKCResult_COption_ClosureReasonZDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_COption_ClosureReasonZDecodeErrorZ_clone_ptr(LDKCResult_COption_ClosureReasonZDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_COption_ClosureReasonZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_ClosureReasonZDecodeErrorZ), "LDKCResult_COption_ClosureReasonZDecodeErrorZ");
        *ret_conv = CResult_COption_ClosureReasonZDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1ClosureReasonZDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_COption_ClosureReasonZDecodeErrorZ* arg_conv = (LDKCResult_COption_ClosureReasonZDecodeErrorZ*)(arg & ~1);
+       LDKCResult_COption_ClosureReasonZDecodeErrorZ* arg_conv = (LDKCResult_COption_ClosureReasonZDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_COption_ClosureReasonZDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1ClosureReasonZDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_COption_ClosureReasonZDecodeErrorZ* orig_conv = (LDKCResult_COption_ClosureReasonZDecodeErrorZ*)(orig & ~1);
+       LDKCResult_COption_ClosureReasonZDecodeErrorZ* orig_conv = (LDKCResult_COption_ClosureReasonZDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_COption_ClosureReasonZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_ClosureReasonZDecodeErrorZ), "LDKCResult_COption_ClosureReasonZDecodeErrorZ");
        *ret_conv = CResult_COption_ClosureReasonZDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1HTLCDestinationZ_1some(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKHTLCDestination o_conv = *(LDKHTLCDestination*)(o_ptr);
-       o_conv = HTLCDestination_clone((LDKHTLCDestination*)(((uintptr_t)o) & ~1));
+       o_conv = HTLCDestination_clone((LDKHTLCDestination*)untag_ptr(o));
        LDKCOption_HTLCDestinationZ *ret_copy = MALLOC(sizeof(LDKCOption_HTLCDestinationZ), "LDKCOption_HTLCDestinationZ");
        *ret_copy = COption_HTLCDestinationZ_some(o_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1HTLCDestinationZ_1none(JNIEnv *env, jclass clz) {
        LDKCOption_HTLCDestinationZ *ret_copy = MALLOC(sizeof(LDKCOption_HTLCDestinationZ), "LDKCOption_HTLCDestinationZ");
        *ret_copy = COption_HTLCDestinationZ_none();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1HTLCDestinationZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_HTLCDestinationZ _res_conv = *(LDKCOption_HTLCDestinationZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        COption_HTLCDestinationZ_free(_res_conv);
 }
 
-static inline uintptr_t COption_HTLCDestinationZ_clone_ptr(LDKCOption_HTLCDestinationZ *NONNULL_PTR arg) {
+static inline uint64_t COption_HTLCDestinationZ_clone_ptr(LDKCOption_HTLCDestinationZ *NONNULL_PTR arg) {
        LDKCOption_HTLCDestinationZ *ret_copy = MALLOC(sizeof(LDKCOption_HTLCDestinationZ), "LDKCOption_HTLCDestinationZ");
        *ret_copy = COption_HTLCDestinationZ_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1HTLCDestinationZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCOption_HTLCDestinationZ* arg_conv = (LDKCOption_HTLCDestinationZ*)arg;
+       LDKCOption_HTLCDestinationZ* arg_conv = (LDKCOption_HTLCDestinationZ*)untag_ptr(arg);
        int64_t ret_conv = COption_HTLCDestinationZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1HTLCDestinationZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCOption_HTLCDestinationZ* orig_conv = (LDKCOption_HTLCDestinationZ*)orig;
+       LDKCOption_HTLCDestinationZ* orig_conv = (LDKCOption_HTLCDestinationZ*)untag_ptr(orig);
        LDKCOption_HTLCDestinationZ *ret_copy = MALLOC(sizeof(LDKCOption_HTLCDestinationZ), "LDKCOption_HTLCDestinationZ");
        *ret_copy = COption_HTLCDestinationZ_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1HTLCDestinationZDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKCOption_HTLCDestinationZ o_conv = *(LDKCOption_HTLCDestinationZ*)(o_ptr);
-       o_conv = COption_HTLCDestinationZ_clone((LDKCOption_HTLCDestinationZ*)(((uintptr_t)o) & ~1));
+       o_conv = COption_HTLCDestinationZ_clone((LDKCOption_HTLCDestinationZ*)untag_ptr(o));
        LDKCResult_COption_HTLCDestinationZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_HTLCDestinationZDecodeErrorZ), "LDKCResult_COption_HTLCDestinationZDecodeErrorZ");
        *ret_conv = CResult_COption_HTLCDestinationZDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1HTLCDestinationZDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_COption_HTLCDestinationZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_HTLCDestinationZDecodeErrorZ), "LDKCResult_COption_HTLCDestinationZDecodeErrorZ");
        *ret_conv = CResult_COption_HTLCDestinationZDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1HTLCDestinationZDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_COption_HTLCDestinationZDecodeErrorZ* o_conv = (LDKCResult_COption_HTLCDestinationZDecodeErrorZ*)(o & ~1);
+       LDKCResult_COption_HTLCDestinationZDecodeErrorZ* o_conv = (LDKCResult_COption_HTLCDestinationZDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_COption_HTLCDestinationZDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1HTLCDestinationZDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_COption_HTLCDestinationZDecodeErrorZ _res_conv = *(LDKCResult_COption_HTLCDestinationZDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_COption_HTLCDestinationZDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_COption_HTLCDestinationZDecodeErrorZ_clone_ptr(LDKCResult_COption_HTLCDestinationZDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_COption_HTLCDestinationZDecodeErrorZ_clone_ptr(LDKCResult_COption_HTLCDestinationZDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_COption_HTLCDestinationZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_HTLCDestinationZDecodeErrorZ), "LDKCResult_COption_HTLCDestinationZDecodeErrorZ");
        *ret_conv = CResult_COption_HTLCDestinationZDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1HTLCDestinationZDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_COption_HTLCDestinationZDecodeErrorZ* arg_conv = (LDKCResult_COption_HTLCDestinationZDecodeErrorZ*)(arg & ~1);
+       LDKCResult_COption_HTLCDestinationZDecodeErrorZ* arg_conv = (LDKCResult_COption_HTLCDestinationZDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_COption_HTLCDestinationZDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1HTLCDestinationZDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_COption_HTLCDestinationZDecodeErrorZ* orig_conv = (LDKCResult_COption_HTLCDestinationZDecodeErrorZ*)(orig & ~1);
+       LDKCResult_COption_HTLCDestinationZDecodeErrorZ* orig_conv = (LDKCResult_COption_HTLCDestinationZDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_COption_HTLCDestinationZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_HTLCDestinationZDecodeErrorZ), "LDKCResult_COption_HTLCDestinationZDecodeErrorZ");
        *ret_conv = CResult_COption_HTLCDestinationZDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1NetworkUpdateZ_1some(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKNetworkUpdate o_conv = *(LDKNetworkUpdate*)(o_ptr);
-       o_conv = NetworkUpdate_clone((LDKNetworkUpdate*)(((uintptr_t)o) & ~1));
+       o_conv = NetworkUpdate_clone((LDKNetworkUpdate*)untag_ptr(o));
        LDKCOption_NetworkUpdateZ *ret_copy = MALLOC(sizeof(LDKCOption_NetworkUpdateZ), "LDKCOption_NetworkUpdateZ");
        *ret_copy = COption_NetworkUpdateZ_some(o_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1NetworkUpdateZ_1none(JNIEnv *env, jclass clz) {
        LDKCOption_NetworkUpdateZ *ret_copy = MALLOC(sizeof(LDKCOption_NetworkUpdateZ), "LDKCOption_NetworkUpdateZ");
        *ret_copy = COption_NetworkUpdateZ_none();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1NetworkUpdateZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_NetworkUpdateZ _res_conv = *(LDKCOption_NetworkUpdateZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        COption_NetworkUpdateZ_free(_res_conv);
 }
 
-static inline uintptr_t COption_NetworkUpdateZ_clone_ptr(LDKCOption_NetworkUpdateZ *NONNULL_PTR arg) {
+static inline uint64_t COption_NetworkUpdateZ_clone_ptr(LDKCOption_NetworkUpdateZ *NONNULL_PTR arg) {
        LDKCOption_NetworkUpdateZ *ret_copy = MALLOC(sizeof(LDKCOption_NetworkUpdateZ), "LDKCOption_NetworkUpdateZ");
        *ret_copy = COption_NetworkUpdateZ_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1NetworkUpdateZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCOption_NetworkUpdateZ* arg_conv = (LDKCOption_NetworkUpdateZ*)arg;
+       LDKCOption_NetworkUpdateZ* arg_conv = (LDKCOption_NetworkUpdateZ*)untag_ptr(arg);
        int64_t ret_conv = COption_NetworkUpdateZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1NetworkUpdateZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCOption_NetworkUpdateZ* orig_conv = (LDKCOption_NetworkUpdateZ*)orig;
+       LDKCOption_NetworkUpdateZ* orig_conv = (LDKCOption_NetworkUpdateZ*)untag_ptr(orig);
        LDKCOption_NetworkUpdateZ *ret_copy = MALLOC(sizeof(LDKCOption_NetworkUpdateZ), "LDKCOption_NetworkUpdateZ");
        *ret_copy = COption_NetworkUpdateZ_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -16827,10 +15533,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1SpendableOutputDescripto
        int64_t* _res_vals = (*env)->GetLongArrayElements (env, _res, NULL);
        for (size_t b = 0; b < _res_constr.datalen; b++) {
                int64_t _res_conv_27 = _res_vals[b];
-               void* _res_conv_27_ptr = (void*)(((uintptr_t)_res_conv_27) & ~1);
+               void* _res_conv_27_ptr = untag_ptr(_res_conv_27);
                CHECK_ACCESS(_res_conv_27_ptr);
                LDKSpendableOutputDescriptor _res_conv_27_conv = *(LDKSpendableOutputDescriptor*)(_res_conv_27_ptr);
-               FREE((void*)_res_conv_27);
+               FREE(untag_ptr(_res_conv_27));
                _res_constr.data[b] = _res_conv_27_conv;
        }
        (*env)->ReleaseLongArrayElements(env, _res, _res_vals, 0);
@@ -16838,104 +15544,104 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1SpendableOutputDescripto
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1EventZ_1some(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKEvent o_conv = *(LDKEvent*)(o_ptr);
-       o_conv = Event_clone((LDKEvent*)(((uintptr_t)o) & ~1));
+       o_conv = Event_clone((LDKEvent*)untag_ptr(o));
        LDKCOption_EventZ *ret_copy = MALLOC(sizeof(LDKCOption_EventZ), "LDKCOption_EventZ");
        *ret_copy = COption_EventZ_some(o_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1EventZ_1none(JNIEnv *env, jclass clz) {
        LDKCOption_EventZ *ret_copy = MALLOC(sizeof(LDKCOption_EventZ), "LDKCOption_EventZ");
        *ret_copy = COption_EventZ_none();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1EventZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_EventZ _res_conv = *(LDKCOption_EventZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        COption_EventZ_free(_res_conv);
 }
 
-static inline uintptr_t COption_EventZ_clone_ptr(LDKCOption_EventZ *NONNULL_PTR arg) {
+static inline uint64_t COption_EventZ_clone_ptr(LDKCOption_EventZ *NONNULL_PTR arg) {
        LDKCOption_EventZ *ret_copy = MALLOC(sizeof(LDKCOption_EventZ), "LDKCOption_EventZ");
        *ret_copy = COption_EventZ_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1EventZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCOption_EventZ* arg_conv = (LDKCOption_EventZ*)arg;
+       LDKCOption_EventZ* arg_conv = (LDKCOption_EventZ*)untag_ptr(arg);
        int64_t ret_conv = COption_EventZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1EventZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCOption_EventZ* orig_conv = (LDKCOption_EventZ*)orig;
+       LDKCOption_EventZ* orig_conv = (LDKCOption_EventZ*)untag_ptr(orig);
        LDKCOption_EventZ *ret_copy = MALLOC(sizeof(LDKCOption_EventZ), "LDKCOption_EventZ");
        *ret_copy = COption_EventZ_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1EventZDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKCOption_EventZ o_conv = *(LDKCOption_EventZ*)(o_ptr);
-       o_conv = COption_EventZ_clone((LDKCOption_EventZ*)(((uintptr_t)o) & ~1));
+       o_conv = COption_EventZ_clone((LDKCOption_EventZ*)untag_ptr(o));
        LDKCResult_COption_EventZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_EventZDecodeErrorZ), "LDKCResult_COption_EventZDecodeErrorZ");
        *ret_conv = CResult_COption_EventZDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1EventZDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_COption_EventZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_EventZDecodeErrorZ), "LDKCResult_COption_EventZDecodeErrorZ");
        *ret_conv = CResult_COption_EventZDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1EventZDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_COption_EventZDecodeErrorZ* o_conv = (LDKCResult_COption_EventZDecodeErrorZ*)(o & ~1);
+       LDKCResult_COption_EventZDecodeErrorZ* o_conv = (LDKCResult_COption_EventZDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_COption_EventZDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1EventZDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_COption_EventZDecodeErrorZ _res_conv = *(LDKCResult_COption_EventZDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_COption_EventZDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_COption_EventZDecodeErrorZ_clone_ptr(LDKCResult_COption_EventZDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_COption_EventZDecodeErrorZ_clone_ptr(LDKCResult_COption_EventZDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_COption_EventZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_EventZDecodeErrorZ), "LDKCResult_COption_EventZDecodeErrorZ");
        *ret_conv = CResult_COption_EventZDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1EventZDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_COption_EventZDecodeErrorZ* arg_conv = (LDKCResult_COption_EventZDecodeErrorZ*)(arg & ~1);
+       LDKCResult_COption_EventZDecodeErrorZ* arg_conv = (LDKCResult_COption_EventZDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_COption_EventZDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1EventZDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_COption_EventZDecodeErrorZ* orig_conv = (LDKCResult_COption_EventZDecodeErrorZ*)(orig & ~1);
+       LDKCResult_COption_EventZDecodeErrorZ* orig_conv = (LDKCResult_COption_EventZDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_COption_EventZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_EventZDecodeErrorZ), "LDKCResult_COption_EventZDecodeErrorZ");
        *ret_conv = CResult_COption_EventZDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1MessageSendEventZ_1free(JNIEnv *env, jclass clz, int64_tArray _res) {
@@ -16948,10 +15654,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1MessageSendEventZ_1free(
        int64_t* _res_vals = (*env)->GetLongArrayElements (env, _res, NULL);
        for (size_t s = 0; s < _res_constr.datalen; s++) {
                int64_t _res_conv_18 = _res_vals[s];
-               void* _res_conv_18_ptr = (void*)(((uintptr_t)_res_conv_18) & ~1);
+               void* _res_conv_18_ptr = untag_ptr(_res_conv_18);
                CHECK_ACCESS(_res_conv_18_ptr);
                LDKMessageSendEvent _res_conv_18_conv = *(LDKMessageSendEvent*)(_res_conv_18_ptr);
-               FREE((void*)_res_conv_18);
+               FREE(untag_ptr(_res_conv_18));
                _res_constr.data[s] = _res_conv_18_conv;
        }
        (*env)->ReleaseLongArrayElements(env, _res, _res_vals, 0);
@@ -16959,71 +15665,71 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1MessageSendEventZ_1free(
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TxOutAccessErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKTxOut o_conv = *(LDKTxOut*)(o_ptr);
-       o_conv = TxOut_clone((LDKTxOut*)(((uintptr_t)o) & ~1));
+       o_conv = TxOut_clone((LDKTxOut*)untag_ptr(o));
        LDKCResult_TxOutAccessErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxOutAccessErrorZ), "LDKCResult_TxOutAccessErrorZ");
        *ret_conv = CResult_TxOutAccessErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TxOutAccessErrorZ_1err(JNIEnv *env, jclass clz, jclass e) {
        LDKAccessError e_conv = LDKAccessError_from_java(env, e);
        LDKCResult_TxOutAccessErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxOutAccessErrorZ), "LDKCResult_TxOutAccessErrorZ");
        *ret_conv = CResult_TxOutAccessErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1TxOutAccessErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_TxOutAccessErrorZ* o_conv = (LDKCResult_TxOutAccessErrorZ*)(o & ~1);
+       LDKCResult_TxOutAccessErrorZ* o_conv = (LDKCResult_TxOutAccessErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_TxOutAccessErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1TxOutAccessErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_TxOutAccessErrorZ _res_conv = *(LDKCResult_TxOutAccessErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_TxOutAccessErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_TxOutAccessErrorZ_clone_ptr(LDKCResult_TxOutAccessErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_TxOutAccessErrorZ_clone_ptr(LDKCResult_TxOutAccessErrorZ *NONNULL_PTR arg) {
        LDKCResult_TxOutAccessErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxOutAccessErrorZ), "LDKCResult_TxOutAccessErrorZ");
        *ret_conv = CResult_TxOutAccessErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TxOutAccessErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_TxOutAccessErrorZ* arg_conv = (LDKCResult_TxOutAccessErrorZ*)(arg & ~1);
+       LDKCResult_TxOutAccessErrorZ* arg_conv = (LDKCResult_TxOutAccessErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_TxOutAccessErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TxOutAccessErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_TxOutAccessErrorZ* orig_conv = (LDKCResult_TxOutAccessErrorZ*)(orig & ~1);
+       LDKCResult_TxOutAccessErrorZ* orig_conv = (LDKCResult_TxOutAccessErrorZ*)untag_ptr(orig);
        LDKCResult_TxOutAccessErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxOutAccessErrorZ), "LDKCResult_TxOutAccessErrorZ");
        *ret_conv = CResult_TxOutAccessErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
-static inline uintptr_t C2Tuple_usizeTransactionZ_clone_ptr(LDKC2Tuple_usizeTransactionZ *NONNULL_PTR arg) {
+static inline uint64_t C2Tuple_usizeTransactionZ_clone_ptr(LDKC2Tuple_usizeTransactionZ *NONNULL_PTR arg) {
        LDKC2Tuple_usizeTransactionZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_usizeTransactionZ), "LDKC2Tuple_usizeTransactionZ");
        *ret_conv = C2Tuple_usizeTransactionZ_clone(arg);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1usizeTransactionZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKC2Tuple_usizeTransactionZ* arg_conv = (LDKC2Tuple_usizeTransactionZ*)(arg & ~1);
+       LDKC2Tuple_usizeTransactionZ* arg_conv = (LDKC2Tuple_usizeTransactionZ*)untag_ptr(arg);
        int64_t ret_conv = C2Tuple_usizeTransactionZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1usizeTransactionZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKC2Tuple_usizeTransactionZ* orig_conv = (LDKC2Tuple_usizeTransactionZ*)(orig & ~1);
+       LDKC2Tuple_usizeTransactionZ* orig_conv = (LDKC2Tuple_usizeTransactionZ*)untag_ptr(orig);
        LDKC2Tuple_usizeTransactionZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_usizeTransactionZ), "LDKC2Tuple_usizeTransactionZ");
        *ret_conv = C2Tuple_usizeTransactionZ_clone(orig_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1usizeTransactionZ_1new(JNIEnv *env, jclass clz, int64_t a, int8_tArray b) {
@@ -17034,15 +15740,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1usizeTransactionZ_
        b_ref.data_is_owned = true;
        LDKC2Tuple_usizeTransactionZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_usizeTransactionZ), "LDKC2Tuple_usizeTransactionZ");
        *ret_conv = C2Tuple_usizeTransactionZ_new(a, b_ref);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C2Tuple_1usizeTransactionZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_usizeTransactionZ _res_conv = *(LDKC2Tuple_usizeTransactionZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        C2Tuple_usizeTransactionZ_free(_res_conv);
 }
 
@@ -17056,10 +15762,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1C2Tuple_1usizeTransactio
        int64_t* _res_vals = (*env)->GetLongArrayElements (env, _res, NULL);
        for (size_t c = 0; c < _res_constr.datalen; c++) {
                int64_t _res_conv_28 = _res_vals[c];
-               void* _res_conv_28_ptr = (void*)(((uintptr_t)_res_conv_28) & ~1);
+               void* _res_conv_28_ptr = untag_ptr(_res_conv_28);
                CHECK_ACCESS(_res_conv_28_ptr);
                LDKC2Tuple_usizeTransactionZ _res_conv_28_conv = *(LDKC2Tuple_usizeTransactionZ*)(_res_conv_28_ptr);
-               FREE((void*)_res_conv_28);
+               FREE(untag_ptr(_res_conv_28));
                _res_constr.data[c] = _res_conv_28_conv;
        }
        (*env)->ReleaseLongArrayElements(env, _res, _res_vals, 0);
@@ -17086,47 +15792,47 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1TxidZ_1free(JNIEnv *env,
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneChannelMonitorUpdateErrZ_1ok(JNIEnv *env, jclass clz) {
        LDKCResult_NoneChannelMonitorUpdateErrZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneChannelMonitorUpdateErrZ), "LDKCResult_NoneChannelMonitorUpdateErrZ");
        *ret_conv = CResult_NoneChannelMonitorUpdateErrZ_ok();
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneChannelMonitorUpdateErrZ_1err(JNIEnv *env, jclass clz, jclass e) {
        LDKChannelMonitorUpdateErr e_conv = LDKChannelMonitorUpdateErr_from_java(env, e);
        LDKCResult_NoneChannelMonitorUpdateErrZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneChannelMonitorUpdateErrZ), "LDKCResult_NoneChannelMonitorUpdateErrZ");
        *ret_conv = CResult_NoneChannelMonitorUpdateErrZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1NoneChannelMonitorUpdateErrZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_NoneChannelMonitorUpdateErrZ* o_conv = (LDKCResult_NoneChannelMonitorUpdateErrZ*)(o & ~1);
+       LDKCResult_NoneChannelMonitorUpdateErrZ* o_conv = (LDKCResult_NoneChannelMonitorUpdateErrZ*)untag_ptr(o);
        jboolean ret_conv = CResult_NoneChannelMonitorUpdateErrZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NoneChannelMonitorUpdateErrZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NoneChannelMonitorUpdateErrZ _res_conv = *(LDKCResult_NoneChannelMonitorUpdateErrZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_NoneChannelMonitorUpdateErrZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_NoneChannelMonitorUpdateErrZ_clone_ptr(LDKCResult_NoneChannelMonitorUpdateErrZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_NoneChannelMonitorUpdateErrZ_clone_ptr(LDKCResult_NoneChannelMonitorUpdateErrZ *NONNULL_PTR arg) {
        LDKCResult_NoneChannelMonitorUpdateErrZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneChannelMonitorUpdateErrZ), "LDKCResult_NoneChannelMonitorUpdateErrZ");
        *ret_conv = CResult_NoneChannelMonitorUpdateErrZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneChannelMonitorUpdateErrZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_NoneChannelMonitorUpdateErrZ* arg_conv = (LDKCResult_NoneChannelMonitorUpdateErrZ*)(arg & ~1);
+       LDKCResult_NoneChannelMonitorUpdateErrZ* arg_conv = (LDKCResult_NoneChannelMonitorUpdateErrZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_NoneChannelMonitorUpdateErrZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneChannelMonitorUpdateErrZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_NoneChannelMonitorUpdateErrZ* orig_conv = (LDKCResult_NoneChannelMonitorUpdateErrZ*)(orig & ~1);
+       LDKCResult_NoneChannelMonitorUpdateErrZ* orig_conv = (LDKCResult_NoneChannelMonitorUpdateErrZ*)untag_ptr(orig);
        LDKCResult_NoneChannelMonitorUpdateErrZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneChannelMonitorUpdateErrZ), "LDKCResult_NoneChannelMonitorUpdateErrZ");
        *ret_conv = CResult_NoneChannelMonitorUpdateErrZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1MonitorEventZ_1free(JNIEnv *env, jclass clz, int64_tArray _res) {
@@ -17139,38 +15845,38 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1MonitorEventZ_1free(JNIE
        int64_t* _res_vals = (*env)->GetLongArrayElements (env, _res, NULL);
        for (size_t o = 0; o < _res_constr.datalen; o++) {
                int64_t _res_conv_14 = _res_vals[o];
-               void* _res_conv_14_ptr = (void*)(((uintptr_t)_res_conv_14) & ~1);
+               void* _res_conv_14_ptr = untag_ptr(_res_conv_14);
                CHECK_ACCESS(_res_conv_14_ptr);
                LDKMonitorEvent _res_conv_14_conv = *(LDKMonitorEvent*)(_res_conv_14_ptr);
-               FREE((void*)_res_conv_14);
+               FREE(untag_ptr(_res_conv_14));
                _res_constr.data[o] = _res_conv_14_conv;
        }
        (*env)->ReleaseLongArrayElements(env, _res, _res_vals, 0);
        CVec_MonitorEventZ_free(_res_constr);
 }
 
-static inline uintptr_t C3Tuple_OutPointCVec_MonitorEventZPublicKeyZ_clone_ptr(LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ *NONNULL_PTR arg) {
+static inline uint64_t C3Tuple_OutPointCVec_MonitorEventZPublicKeyZ_clone_ptr(LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ *NONNULL_PTR arg) {
        LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ* ret_conv = MALLOC(sizeof(LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ), "LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ");
        *ret_conv = C3Tuple_OutPointCVec_MonitorEventZPublicKeyZ_clone(arg);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C3Tuple_1OutPointCVec_1MonitorEventZPublicKeyZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ* arg_conv = (LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ*)(arg & ~1);
+       LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ* arg_conv = (LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ*)untag_ptr(arg);
        int64_t ret_conv = C3Tuple_OutPointCVec_MonitorEventZPublicKeyZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C3Tuple_1OutPointCVec_1MonitorEventZPublicKeyZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ* orig_conv = (LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ*)(orig & ~1);
+       LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ* orig_conv = (LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ*)untag_ptr(orig);
        LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ* ret_conv = MALLOC(sizeof(LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ), "LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ");
        *ret_conv = C3Tuple_OutPointCVec_MonitorEventZPublicKeyZ_clone(orig_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C3Tuple_1OutPointCVec_1MonitorEventZPublicKeyZ_1new(JNIEnv *env, jclass clz, int64_t a, int64_tArray b, int8_tArray c) {
        LDKOutPoint a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = (a & 1) || (a == 0);
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
        a_conv = OutPoint_clone(&a_conv);
        LDKCVec_MonitorEventZ b_constr;
@@ -17182,10 +15888,10 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C3Tuple_1OutPointCVec_1Moni
        int64_t* b_vals = (*env)->GetLongArrayElements (env, b, NULL);
        for (size_t o = 0; o < b_constr.datalen; o++) {
                int64_t b_conv_14 = b_vals[o];
-               void* b_conv_14_ptr = (void*)(((uintptr_t)b_conv_14) & ~1);
+               void* b_conv_14_ptr = untag_ptr(b_conv_14);
                CHECK_ACCESS(b_conv_14_ptr);
                LDKMonitorEvent b_conv_14_conv = *(LDKMonitorEvent*)(b_conv_14_ptr);
-               b_conv_14_conv = MonitorEvent_clone((LDKMonitorEvent*)(((uintptr_t)b_conv_14) & ~1));
+               b_conv_14_conv = MonitorEvent_clone((LDKMonitorEvent*)untag_ptr(b_conv_14));
                b_constr.data[o] = b_conv_14_conv;
        }
        (*env)->ReleaseLongArrayElements(env, b, b_vals, 0);
@@ -17194,15 +15900,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C3Tuple_1OutPointCVec_1Moni
        (*env)->GetByteArrayRegion(env, c, 0, 33, c_ref.compressed_form);
        LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ* ret_conv = MALLOC(sizeof(LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ), "LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ");
        *ret_conv = C3Tuple_OutPointCVec_MonitorEventZPublicKeyZ_new(a_conv, b_constr, c_ref);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C3Tuple_1OutPointCVec_1MonitorEventZPublicKeyZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ _res_conv = *(LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        C3Tuple_OutPointCVec_MonitorEventZPublicKeyZ_free(_res_conv);
 }
 
@@ -17216,10 +15922,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1C3Tuple_1OutPointCVec_1M
        int64_t* _res_vals = (*env)->GetLongArrayElements (env, _res, NULL);
        for (size_t x = 0; x < _res_constr.datalen; x++) {
                int64_t _res_conv_49 = _res_vals[x];
-               void* _res_conv_49_ptr = (void*)(((uintptr_t)_res_conv_49) & ~1);
+               void* _res_conv_49_ptr = untag_ptr(_res_conv_49);
                CHECK_ACCESS(_res_conv_49_ptr);
                LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ _res_conv_49_conv = *(LDKC3Tuple_OutPointCVec_MonitorEventZPublicKeyZ*)(_res_conv_49_ptr);
-               FREE((void*)_res_conv_49);
+               FREE(untag_ptr(_res_conv_49));
                _res_constr.data[x] = _res_conv_49_conv;
        }
        (*env)->ReleaseLongArrayElements(env, _res, _res_vals, 0);
@@ -17227,184 +15933,184 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1C3Tuple_1OutPointCVec_1M
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1C2Tuple_1usizeTransactionZZ_1some(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKC2Tuple_usizeTransactionZ o_conv = *(LDKC2Tuple_usizeTransactionZ*)(o_ptr);
-       o_conv = C2Tuple_usizeTransactionZ_clone((LDKC2Tuple_usizeTransactionZ*)(((uintptr_t)o) & ~1));
+       o_conv = C2Tuple_usizeTransactionZ_clone((LDKC2Tuple_usizeTransactionZ*)untag_ptr(o));
        LDKCOption_C2Tuple_usizeTransactionZZ *ret_copy = MALLOC(sizeof(LDKCOption_C2Tuple_usizeTransactionZZ), "LDKCOption_C2Tuple_usizeTransactionZZ");
        *ret_copy = COption_C2Tuple_usizeTransactionZZ_some(o_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1C2Tuple_1usizeTransactionZZ_1none(JNIEnv *env, jclass clz) {
        LDKCOption_C2Tuple_usizeTransactionZZ *ret_copy = MALLOC(sizeof(LDKCOption_C2Tuple_usizeTransactionZZ), "LDKCOption_C2Tuple_usizeTransactionZZ");
        *ret_copy = COption_C2Tuple_usizeTransactionZZ_none();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1C2Tuple_1usizeTransactionZZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_C2Tuple_usizeTransactionZZ _res_conv = *(LDKCOption_C2Tuple_usizeTransactionZZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        COption_C2Tuple_usizeTransactionZZ_free(_res_conv);
 }
 
-static inline uintptr_t COption_C2Tuple_usizeTransactionZZ_clone_ptr(LDKCOption_C2Tuple_usizeTransactionZZ *NONNULL_PTR arg) {
+static inline uint64_t COption_C2Tuple_usizeTransactionZZ_clone_ptr(LDKCOption_C2Tuple_usizeTransactionZZ *NONNULL_PTR arg) {
        LDKCOption_C2Tuple_usizeTransactionZZ *ret_copy = MALLOC(sizeof(LDKCOption_C2Tuple_usizeTransactionZZ), "LDKCOption_C2Tuple_usizeTransactionZZ");
        *ret_copy = COption_C2Tuple_usizeTransactionZZ_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1C2Tuple_1usizeTransactionZZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCOption_C2Tuple_usizeTransactionZZ* arg_conv = (LDKCOption_C2Tuple_usizeTransactionZZ*)arg;
+       LDKCOption_C2Tuple_usizeTransactionZZ* arg_conv = (LDKCOption_C2Tuple_usizeTransactionZZ*)untag_ptr(arg);
        int64_t ret_conv = COption_C2Tuple_usizeTransactionZZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1C2Tuple_1usizeTransactionZZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCOption_C2Tuple_usizeTransactionZZ* orig_conv = (LDKCOption_C2Tuple_usizeTransactionZZ*)orig;
+       LDKCOption_C2Tuple_usizeTransactionZZ* orig_conv = (LDKCOption_C2Tuple_usizeTransactionZZ*)untag_ptr(orig);
        LDKCOption_C2Tuple_usizeTransactionZZ *ret_copy = MALLOC(sizeof(LDKCOption_C2Tuple_usizeTransactionZZ), "LDKCOption_C2Tuple_usizeTransactionZZ");
        *ret_copy = COption_C2Tuple_usizeTransactionZZ_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1FixedPenaltyScorerDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKFixedPenaltyScorer o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = FixedPenaltyScorer_clone(&o_conv);
        LDKCResult_FixedPenaltyScorerDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FixedPenaltyScorerDecodeErrorZ), "LDKCResult_FixedPenaltyScorerDecodeErrorZ");
        *ret_conv = CResult_FixedPenaltyScorerDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1FixedPenaltyScorerDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_FixedPenaltyScorerDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FixedPenaltyScorerDecodeErrorZ), "LDKCResult_FixedPenaltyScorerDecodeErrorZ");
        *ret_conv = CResult_FixedPenaltyScorerDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1FixedPenaltyScorerDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_FixedPenaltyScorerDecodeErrorZ* o_conv = (LDKCResult_FixedPenaltyScorerDecodeErrorZ*)(o & ~1);
+       LDKCResult_FixedPenaltyScorerDecodeErrorZ* o_conv = (LDKCResult_FixedPenaltyScorerDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_FixedPenaltyScorerDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1FixedPenaltyScorerDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_FixedPenaltyScorerDecodeErrorZ _res_conv = *(LDKCResult_FixedPenaltyScorerDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_FixedPenaltyScorerDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_FixedPenaltyScorerDecodeErrorZ_clone_ptr(LDKCResult_FixedPenaltyScorerDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_FixedPenaltyScorerDecodeErrorZ_clone_ptr(LDKCResult_FixedPenaltyScorerDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_FixedPenaltyScorerDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FixedPenaltyScorerDecodeErrorZ), "LDKCResult_FixedPenaltyScorerDecodeErrorZ");
        *ret_conv = CResult_FixedPenaltyScorerDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1FixedPenaltyScorerDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_FixedPenaltyScorerDecodeErrorZ* arg_conv = (LDKCResult_FixedPenaltyScorerDecodeErrorZ*)(arg & ~1);
+       LDKCResult_FixedPenaltyScorerDecodeErrorZ* arg_conv = (LDKCResult_FixedPenaltyScorerDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_FixedPenaltyScorerDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1FixedPenaltyScorerDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_FixedPenaltyScorerDecodeErrorZ* orig_conv = (LDKCResult_FixedPenaltyScorerDecodeErrorZ*)(orig & ~1);
+       LDKCResult_FixedPenaltyScorerDecodeErrorZ* orig_conv = (LDKCResult_FixedPenaltyScorerDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_FixedPenaltyScorerDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FixedPenaltyScorerDecodeErrorZ), "LDKCResult_FixedPenaltyScorerDecodeErrorZ");
        *ret_conv = CResult_FixedPenaltyScorerDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
-static inline uintptr_t C2Tuple_u64u64Z_clone_ptr(LDKC2Tuple_u64u64Z *NONNULL_PTR arg) {
+static inline uint64_t C2Tuple_u64u64Z_clone_ptr(LDKC2Tuple_u64u64Z *NONNULL_PTR arg) {
        LDKC2Tuple_u64u64Z* ret_conv = MALLOC(sizeof(LDKC2Tuple_u64u64Z), "LDKC2Tuple_u64u64Z");
        *ret_conv = C2Tuple_u64u64Z_clone(arg);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u64u64Z_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKC2Tuple_u64u64Z* arg_conv = (LDKC2Tuple_u64u64Z*)(arg & ~1);
+       LDKC2Tuple_u64u64Z* arg_conv = (LDKC2Tuple_u64u64Z*)untag_ptr(arg);
        int64_t ret_conv = C2Tuple_u64u64Z_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u64u64Z_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKC2Tuple_u64u64Z* orig_conv = (LDKC2Tuple_u64u64Z*)(orig & ~1);
+       LDKC2Tuple_u64u64Z* orig_conv = (LDKC2Tuple_u64u64Z*)untag_ptr(orig);
        LDKC2Tuple_u64u64Z* ret_conv = MALLOC(sizeof(LDKC2Tuple_u64u64Z), "LDKC2Tuple_u64u64Z");
        *ret_conv = C2Tuple_u64u64Z_clone(orig_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u64u64Z_1new(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKC2Tuple_u64u64Z* ret_conv = MALLOC(sizeof(LDKC2Tuple_u64u64Z), "LDKC2Tuple_u64u64Z");
        *ret_conv = C2Tuple_u64u64Z_new(a, b);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u64u64Z_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_u64u64Z _res_conv = *(LDKC2Tuple_u64u64Z*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        C2Tuple_u64u64Z_free(_res_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1C2Tuple_1u64u64ZZ_1some(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKC2Tuple_u64u64Z o_conv = *(LDKC2Tuple_u64u64Z*)(o_ptr);
-       o_conv = C2Tuple_u64u64Z_clone((LDKC2Tuple_u64u64Z*)(((uintptr_t)o) & ~1));
+       o_conv = C2Tuple_u64u64Z_clone((LDKC2Tuple_u64u64Z*)untag_ptr(o));
        LDKCOption_C2Tuple_u64u64ZZ *ret_copy = MALLOC(sizeof(LDKCOption_C2Tuple_u64u64ZZ), "LDKCOption_C2Tuple_u64u64ZZ");
        *ret_copy = COption_C2Tuple_u64u64ZZ_some(o_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1C2Tuple_1u64u64ZZ_1none(JNIEnv *env, jclass clz) {
        LDKCOption_C2Tuple_u64u64ZZ *ret_copy = MALLOC(sizeof(LDKCOption_C2Tuple_u64u64ZZ), "LDKCOption_C2Tuple_u64u64ZZ");
        *ret_copy = COption_C2Tuple_u64u64ZZ_none();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1C2Tuple_1u64u64ZZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_C2Tuple_u64u64ZZ _res_conv = *(LDKCOption_C2Tuple_u64u64ZZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        COption_C2Tuple_u64u64ZZ_free(_res_conv);
 }
 
-static inline uintptr_t COption_C2Tuple_u64u64ZZ_clone_ptr(LDKCOption_C2Tuple_u64u64ZZ *NONNULL_PTR arg) {
+static inline uint64_t COption_C2Tuple_u64u64ZZ_clone_ptr(LDKCOption_C2Tuple_u64u64ZZ *NONNULL_PTR arg) {
        LDKCOption_C2Tuple_u64u64ZZ *ret_copy = MALLOC(sizeof(LDKCOption_C2Tuple_u64u64ZZ), "LDKCOption_C2Tuple_u64u64ZZ");
        *ret_copy = COption_C2Tuple_u64u64ZZ_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1C2Tuple_1u64u64ZZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCOption_C2Tuple_u64u64ZZ* arg_conv = (LDKCOption_C2Tuple_u64u64ZZ*)arg;
+       LDKCOption_C2Tuple_u64u64ZZ* arg_conv = (LDKCOption_C2Tuple_u64u64ZZ*)untag_ptr(arg);
        int64_t ret_conv = COption_C2Tuple_u64u64ZZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1C2Tuple_1u64u64ZZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCOption_C2Tuple_u64u64ZZ* orig_conv = (LDKCOption_C2Tuple_u64u64ZZ*)orig;
+       LDKCOption_C2Tuple_u64u64ZZ* orig_conv = (LDKCOption_C2Tuple_u64u64ZZ*)untag_ptr(orig);
        LDKCOption_C2Tuple_u64u64ZZ *ret_copy = MALLOC(sizeof(LDKCOption_C2Tuple_u64u64ZZ), "LDKCOption_C2Tuple_u64u64ZZ");
        *ret_copy = COption_C2Tuple_u64u64ZZ_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -17419,8 +16125,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1NodeIdZ_1free(JNIEnv *en
        for (size_t i = 0; i < _res_constr.datalen; i++) {
                int64_t _res_conv_8 = _res_vals[i];
                LDKNodeId _res_conv_8_conv;
-               _res_conv_8_conv.inner = (void*)(_res_conv_8 & (~1));
-               _res_conv_8_conv.is_owned = (_res_conv_8 & 1) || (_res_conv_8 == 0);
+               _res_conv_8_conv.inner = untag_ptr(_res_conv_8);
+               _res_conv_8_conv.is_owned = ptr_is_owned(_res_conv_8);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(_res_conv_8_conv);
                _res_constr.data[i] = _res_conv_8_conv;
        }
@@ -17430,427 +16136,428 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1NodeIdZ_1free(JNIEnv *en
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ProbabilisticScorerDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKProbabilisticScorer o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        // WARNING: we need a move here but no clone is available for LDKProbabilisticScorer
+       
        LDKCResult_ProbabilisticScorerDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ProbabilisticScorerDecodeErrorZ), "LDKCResult_ProbabilisticScorerDecodeErrorZ");
        *ret_conv = CResult_ProbabilisticScorerDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ProbabilisticScorerDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ProbabilisticScorerDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ProbabilisticScorerDecodeErrorZ), "LDKCResult_ProbabilisticScorerDecodeErrorZ");
        *ret_conv = CResult_ProbabilisticScorerDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1ProbabilisticScorerDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_ProbabilisticScorerDecodeErrorZ* o_conv = (LDKCResult_ProbabilisticScorerDecodeErrorZ*)(o & ~1);
+       LDKCResult_ProbabilisticScorerDecodeErrorZ* o_conv = (LDKCResult_ProbabilisticScorerDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_ProbabilisticScorerDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ProbabilisticScorerDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ProbabilisticScorerDecodeErrorZ _res_conv = *(LDKCResult_ProbabilisticScorerDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_ProbabilisticScorerDecodeErrorZ_free(_res_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InitFeaturesDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKInitFeatures o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = InitFeatures_clone(&o_conv);
        LDKCResult_InitFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InitFeaturesDecodeErrorZ), "LDKCResult_InitFeaturesDecodeErrorZ");
        *ret_conv = CResult_InitFeaturesDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InitFeaturesDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_InitFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InitFeaturesDecodeErrorZ), "LDKCResult_InitFeaturesDecodeErrorZ");
        *ret_conv = CResult_InitFeaturesDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1InitFeaturesDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_InitFeaturesDecodeErrorZ* o_conv = (LDKCResult_InitFeaturesDecodeErrorZ*)(o & ~1);
+       LDKCResult_InitFeaturesDecodeErrorZ* o_conv = (LDKCResult_InitFeaturesDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_InitFeaturesDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1InitFeaturesDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_InitFeaturesDecodeErrorZ _res_conv = *(LDKCResult_InitFeaturesDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_InitFeaturesDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_InitFeaturesDecodeErrorZ_clone_ptr(LDKCResult_InitFeaturesDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_InitFeaturesDecodeErrorZ_clone_ptr(LDKCResult_InitFeaturesDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_InitFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InitFeaturesDecodeErrorZ), "LDKCResult_InitFeaturesDecodeErrorZ");
        *ret_conv = CResult_InitFeaturesDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InitFeaturesDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_InitFeaturesDecodeErrorZ* arg_conv = (LDKCResult_InitFeaturesDecodeErrorZ*)(arg & ~1);
+       LDKCResult_InitFeaturesDecodeErrorZ* arg_conv = (LDKCResult_InitFeaturesDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_InitFeaturesDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InitFeaturesDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_InitFeaturesDecodeErrorZ* orig_conv = (LDKCResult_InitFeaturesDecodeErrorZ*)(orig & ~1);
+       LDKCResult_InitFeaturesDecodeErrorZ* orig_conv = (LDKCResult_InitFeaturesDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_InitFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InitFeaturesDecodeErrorZ), "LDKCResult_InitFeaturesDecodeErrorZ");
        *ret_conv = CResult_InitFeaturesDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelFeaturesDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKChannelFeatures o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = ChannelFeatures_clone(&o_conv);
        LDKCResult_ChannelFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelFeaturesDecodeErrorZ), "LDKCResult_ChannelFeaturesDecodeErrorZ");
        *ret_conv = CResult_ChannelFeaturesDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelFeaturesDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ChannelFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelFeaturesDecodeErrorZ), "LDKCResult_ChannelFeaturesDecodeErrorZ");
        *ret_conv = CResult_ChannelFeaturesDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelFeaturesDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_ChannelFeaturesDecodeErrorZ* o_conv = (LDKCResult_ChannelFeaturesDecodeErrorZ*)(o & ~1);
+       LDKCResult_ChannelFeaturesDecodeErrorZ* o_conv = (LDKCResult_ChannelFeaturesDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_ChannelFeaturesDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelFeaturesDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ChannelFeaturesDecodeErrorZ _res_conv = *(LDKCResult_ChannelFeaturesDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_ChannelFeaturesDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_ChannelFeaturesDecodeErrorZ_clone_ptr(LDKCResult_ChannelFeaturesDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_ChannelFeaturesDecodeErrorZ_clone_ptr(LDKCResult_ChannelFeaturesDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ChannelFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelFeaturesDecodeErrorZ), "LDKCResult_ChannelFeaturesDecodeErrorZ");
        *ret_conv = CResult_ChannelFeaturesDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelFeaturesDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_ChannelFeaturesDecodeErrorZ* arg_conv = (LDKCResult_ChannelFeaturesDecodeErrorZ*)(arg & ~1);
+       LDKCResult_ChannelFeaturesDecodeErrorZ* arg_conv = (LDKCResult_ChannelFeaturesDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_ChannelFeaturesDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelFeaturesDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_ChannelFeaturesDecodeErrorZ* orig_conv = (LDKCResult_ChannelFeaturesDecodeErrorZ*)(orig & ~1);
+       LDKCResult_ChannelFeaturesDecodeErrorZ* orig_conv = (LDKCResult_ChannelFeaturesDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_ChannelFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelFeaturesDecodeErrorZ), "LDKCResult_ChannelFeaturesDecodeErrorZ");
        *ret_conv = CResult_ChannelFeaturesDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeFeaturesDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKNodeFeatures o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = NodeFeatures_clone(&o_conv);
        LDKCResult_NodeFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeFeaturesDecodeErrorZ), "LDKCResult_NodeFeaturesDecodeErrorZ");
        *ret_conv = CResult_NodeFeaturesDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeFeaturesDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_NodeFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeFeaturesDecodeErrorZ), "LDKCResult_NodeFeaturesDecodeErrorZ");
        *ret_conv = CResult_NodeFeaturesDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1NodeFeaturesDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_NodeFeaturesDecodeErrorZ* o_conv = (LDKCResult_NodeFeaturesDecodeErrorZ*)(o & ~1);
+       LDKCResult_NodeFeaturesDecodeErrorZ* o_conv = (LDKCResult_NodeFeaturesDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_NodeFeaturesDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NodeFeaturesDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NodeFeaturesDecodeErrorZ _res_conv = *(LDKCResult_NodeFeaturesDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_NodeFeaturesDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_NodeFeaturesDecodeErrorZ_clone_ptr(LDKCResult_NodeFeaturesDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_NodeFeaturesDecodeErrorZ_clone_ptr(LDKCResult_NodeFeaturesDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_NodeFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeFeaturesDecodeErrorZ), "LDKCResult_NodeFeaturesDecodeErrorZ");
        *ret_conv = CResult_NodeFeaturesDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeFeaturesDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_NodeFeaturesDecodeErrorZ* arg_conv = (LDKCResult_NodeFeaturesDecodeErrorZ*)(arg & ~1);
+       LDKCResult_NodeFeaturesDecodeErrorZ* arg_conv = (LDKCResult_NodeFeaturesDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_NodeFeaturesDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeFeaturesDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_NodeFeaturesDecodeErrorZ* orig_conv = (LDKCResult_NodeFeaturesDecodeErrorZ*)(orig & ~1);
+       LDKCResult_NodeFeaturesDecodeErrorZ* orig_conv = (LDKCResult_NodeFeaturesDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_NodeFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeFeaturesDecodeErrorZ), "LDKCResult_NodeFeaturesDecodeErrorZ");
        *ret_conv = CResult_NodeFeaturesDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceFeaturesDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKInvoiceFeatures o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = InvoiceFeatures_clone(&o_conv);
        LDKCResult_InvoiceFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceFeaturesDecodeErrorZ), "LDKCResult_InvoiceFeaturesDecodeErrorZ");
        *ret_conv = CResult_InvoiceFeaturesDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceFeaturesDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_InvoiceFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceFeaturesDecodeErrorZ), "LDKCResult_InvoiceFeaturesDecodeErrorZ");
        *ret_conv = CResult_InvoiceFeaturesDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceFeaturesDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_InvoiceFeaturesDecodeErrorZ* o_conv = (LDKCResult_InvoiceFeaturesDecodeErrorZ*)(o & ~1);
+       LDKCResult_InvoiceFeaturesDecodeErrorZ* o_conv = (LDKCResult_InvoiceFeaturesDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_InvoiceFeaturesDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceFeaturesDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_InvoiceFeaturesDecodeErrorZ _res_conv = *(LDKCResult_InvoiceFeaturesDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_InvoiceFeaturesDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_InvoiceFeaturesDecodeErrorZ_clone_ptr(LDKCResult_InvoiceFeaturesDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_InvoiceFeaturesDecodeErrorZ_clone_ptr(LDKCResult_InvoiceFeaturesDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_InvoiceFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceFeaturesDecodeErrorZ), "LDKCResult_InvoiceFeaturesDecodeErrorZ");
        *ret_conv = CResult_InvoiceFeaturesDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceFeaturesDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_InvoiceFeaturesDecodeErrorZ* arg_conv = (LDKCResult_InvoiceFeaturesDecodeErrorZ*)(arg & ~1);
+       LDKCResult_InvoiceFeaturesDecodeErrorZ* arg_conv = (LDKCResult_InvoiceFeaturesDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_InvoiceFeaturesDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceFeaturesDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_InvoiceFeaturesDecodeErrorZ* orig_conv = (LDKCResult_InvoiceFeaturesDecodeErrorZ*)(orig & ~1);
+       LDKCResult_InvoiceFeaturesDecodeErrorZ* orig_conv = (LDKCResult_InvoiceFeaturesDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_InvoiceFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceFeaturesDecodeErrorZ), "LDKCResult_InvoiceFeaturesDecodeErrorZ");
        *ret_conv = CResult_InvoiceFeaturesDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelTypeFeaturesDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKChannelTypeFeatures o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = ChannelTypeFeatures_clone(&o_conv);
        LDKCResult_ChannelTypeFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelTypeFeaturesDecodeErrorZ), "LDKCResult_ChannelTypeFeaturesDecodeErrorZ");
        *ret_conv = CResult_ChannelTypeFeaturesDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelTypeFeaturesDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ChannelTypeFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelTypeFeaturesDecodeErrorZ), "LDKCResult_ChannelTypeFeaturesDecodeErrorZ");
        *ret_conv = CResult_ChannelTypeFeaturesDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelTypeFeaturesDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_ChannelTypeFeaturesDecodeErrorZ* o_conv = (LDKCResult_ChannelTypeFeaturesDecodeErrorZ*)(o & ~1);
+       LDKCResult_ChannelTypeFeaturesDecodeErrorZ* o_conv = (LDKCResult_ChannelTypeFeaturesDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_ChannelTypeFeaturesDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelTypeFeaturesDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ChannelTypeFeaturesDecodeErrorZ _res_conv = *(LDKCResult_ChannelTypeFeaturesDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_ChannelTypeFeaturesDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_ChannelTypeFeaturesDecodeErrorZ_clone_ptr(LDKCResult_ChannelTypeFeaturesDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_ChannelTypeFeaturesDecodeErrorZ_clone_ptr(LDKCResult_ChannelTypeFeaturesDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ChannelTypeFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelTypeFeaturesDecodeErrorZ), "LDKCResult_ChannelTypeFeaturesDecodeErrorZ");
        *ret_conv = CResult_ChannelTypeFeaturesDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelTypeFeaturesDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_ChannelTypeFeaturesDecodeErrorZ* arg_conv = (LDKCResult_ChannelTypeFeaturesDecodeErrorZ*)(arg & ~1);
+       LDKCResult_ChannelTypeFeaturesDecodeErrorZ* arg_conv = (LDKCResult_ChannelTypeFeaturesDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_ChannelTypeFeaturesDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelTypeFeaturesDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_ChannelTypeFeaturesDecodeErrorZ* orig_conv = (LDKCResult_ChannelTypeFeaturesDecodeErrorZ*)(orig & ~1);
+       LDKCResult_ChannelTypeFeaturesDecodeErrorZ* orig_conv = (LDKCResult_ChannelTypeFeaturesDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_ChannelTypeFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelTypeFeaturesDecodeErrorZ), "LDKCResult_ChannelTypeFeaturesDecodeErrorZ");
        *ret_conv = CResult_ChannelTypeFeaturesDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeIdDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKNodeId o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = NodeId_clone(&o_conv);
        LDKCResult_NodeIdDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeIdDecodeErrorZ), "LDKCResult_NodeIdDecodeErrorZ");
        *ret_conv = CResult_NodeIdDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeIdDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_NodeIdDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeIdDecodeErrorZ), "LDKCResult_NodeIdDecodeErrorZ");
        *ret_conv = CResult_NodeIdDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1NodeIdDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_NodeIdDecodeErrorZ* o_conv = (LDKCResult_NodeIdDecodeErrorZ*)(o & ~1);
+       LDKCResult_NodeIdDecodeErrorZ* o_conv = (LDKCResult_NodeIdDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_NodeIdDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NodeIdDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NodeIdDecodeErrorZ _res_conv = *(LDKCResult_NodeIdDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_NodeIdDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_NodeIdDecodeErrorZ_clone_ptr(LDKCResult_NodeIdDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_NodeIdDecodeErrorZ_clone_ptr(LDKCResult_NodeIdDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_NodeIdDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeIdDecodeErrorZ), "LDKCResult_NodeIdDecodeErrorZ");
        *ret_conv = CResult_NodeIdDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeIdDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_NodeIdDecodeErrorZ* arg_conv = (LDKCResult_NodeIdDecodeErrorZ*)(arg & ~1);
+       LDKCResult_NodeIdDecodeErrorZ* arg_conv = (LDKCResult_NodeIdDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_NodeIdDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeIdDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_NodeIdDecodeErrorZ* orig_conv = (LDKCResult_NodeIdDecodeErrorZ*)(orig & ~1);
+       LDKCResult_NodeIdDecodeErrorZ* orig_conv = (LDKCResult_NodeIdDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_NodeIdDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeIdDecodeErrorZ), "LDKCResult_NodeIdDecodeErrorZ");
        *ret_conv = CResult_NodeIdDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1NetworkUpdateZDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKCOption_NetworkUpdateZ o_conv = *(LDKCOption_NetworkUpdateZ*)(o_ptr);
-       o_conv = COption_NetworkUpdateZ_clone((LDKCOption_NetworkUpdateZ*)(((uintptr_t)o) & ~1));
+       o_conv = COption_NetworkUpdateZ_clone((LDKCOption_NetworkUpdateZ*)untag_ptr(o));
        LDKCResult_COption_NetworkUpdateZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_NetworkUpdateZDecodeErrorZ), "LDKCResult_COption_NetworkUpdateZDecodeErrorZ");
        *ret_conv = CResult_COption_NetworkUpdateZDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1NetworkUpdateZDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_COption_NetworkUpdateZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_NetworkUpdateZDecodeErrorZ), "LDKCResult_COption_NetworkUpdateZDecodeErrorZ");
        *ret_conv = CResult_COption_NetworkUpdateZDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1NetworkUpdateZDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_COption_NetworkUpdateZDecodeErrorZ* o_conv = (LDKCResult_COption_NetworkUpdateZDecodeErrorZ*)(o & ~1);
+       LDKCResult_COption_NetworkUpdateZDecodeErrorZ* o_conv = (LDKCResult_COption_NetworkUpdateZDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_COption_NetworkUpdateZDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1NetworkUpdateZDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_COption_NetworkUpdateZDecodeErrorZ _res_conv = *(LDKCResult_COption_NetworkUpdateZDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_COption_NetworkUpdateZDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_COption_NetworkUpdateZDecodeErrorZ_clone_ptr(LDKCResult_COption_NetworkUpdateZDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_COption_NetworkUpdateZDecodeErrorZ_clone_ptr(LDKCResult_COption_NetworkUpdateZDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_COption_NetworkUpdateZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_NetworkUpdateZDecodeErrorZ), "LDKCResult_COption_NetworkUpdateZDecodeErrorZ");
        *ret_conv = CResult_COption_NetworkUpdateZDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1NetworkUpdateZDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_COption_NetworkUpdateZDecodeErrorZ* arg_conv = (LDKCResult_COption_NetworkUpdateZDecodeErrorZ*)(arg & ~1);
+       LDKCResult_COption_NetworkUpdateZDecodeErrorZ* arg_conv = (LDKCResult_COption_NetworkUpdateZDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_COption_NetworkUpdateZDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1NetworkUpdateZDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_COption_NetworkUpdateZDecodeErrorZ* orig_conv = (LDKCResult_COption_NetworkUpdateZDecodeErrorZ*)(orig & ~1);
+       LDKCResult_COption_NetworkUpdateZDecodeErrorZ* orig_conv = (LDKCResult_COption_NetworkUpdateZDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_COption_NetworkUpdateZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_NetworkUpdateZDecodeErrorZ), "LDKCResult_COption_NetworkUpdateZDecodeErrorZ");
        *ret_conv = CResult_COption_NetworkUpdateZDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1AccessZ_1some(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKAccess o_conv = *(LDKAccess*)(o_ptr);
        if (o_conv.free == LDKAccess_JCalls_free) {
@@ -17859,121 +16566,121 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1AccessZ_1some(JNIE
        }
        LDKCOption_AccessZ *ret_copy = MALLOC(sizeof(LDKCOption_AccessZ), "LDKCOption_AccessZ");
        *ret_copy = COption_AccessZ_some(o_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1AccessZ_1none(JNIEnv *env, jclass clz) {
        LDKCOption_AccessZ *ret_copy = MALLOC(sizeof(LDKCOption_AccessZ), "LDKCOption_AccessZ");
        *ret_copy = COption_AccessZ_none();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1AccessZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_AccessZ _res_conv = *(LDKCOption_AccessZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        COption_AccessZ_free(_res_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1boolLightningErrorZ_1ok(JNIEnv *env, jclass clz, jboolean o) {
        LDKCResult_boolLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_boolLightningErrorZ), "LDKCResult_boolLightningErrorZ");
        *ret_conv = CResult_boolLightningErrorZ_ok(o);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1boolLightningErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKLightningError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = LightningError_clone(&e_conv);
        LDKCResult_boolLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_boolLightningErrorZ), "LDKCResult_boolLightningErrorZ");
        *ret_conv = CResult_boolLightningErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1boolLightningErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_boolLightningErrorZ* o_conv = (LDKCResult_boolLightningErrorZ*)(o & ~1);
+       LDKCResult_boolLightningErrorZ* o_conv = (LDKCResult_boolLightningErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_boolLightningErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1boolLightningErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_boolLightningErrorZ _res_conv = *(LDKCResult_boolLightningErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_boolLightningErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_boolLightningErrorZ_clone_ptr(LDKCResult_boolLightningErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_boolLightningErrorZ_clone_ptr(LDKCResult_boolLightningErrorZ *NONNULL_PTR arg) {
        LDKCResult_boolLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_boolLightningErrorZ), "LDKCResult_boolLightningErrorZ");
        *ret_conv = CResult_boolLightningErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1boolLightningErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_boolLightningErrorZ* arg_conv = (LDKCResult_boolLightningErrorZ*)(arg & ~1);
+       LDKCResult_boolLightningErrorZ* arg_conv = (LDKCResult_boolLightningErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_boolLightningErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1boolLightningErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_boolLightningErrorZ* orig_conv = (LDKCResult_boolLightningErrorZ*)(orig & ~1);
+       LDKCResult_boolLightningErrorZ* orig_conv = (LDKCResult_boolLightningErrorZ*)untag_ptr(orig);
        LDKCResult_boolLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_boolLightningErrorZ), "LDKCResult_boolLightningErrorZ");
        *ret_conv = CResult_boolLightningErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
-static inline uintptr_t C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_clone_ptr(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ *NONNULL_PTR arg) {
+static inline uint64_t C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_clone_ptr(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ *NONNULL_PTR arg) {
        LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ* ret_conv = MALLOC(sizeof(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ), "LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ");
        *ret_conv = C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_clone(arg);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C3Tuple_1ChannelAnnouncementChannelUpdateChannelUpdateZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ* arg_conv = (LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(arg & ~1);
+       LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ* arg_conv = (LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)untag_ptr(arg);
        int64_t ret_conv = C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C3Tuple_1ChannelAnnouncementChannelUpdateChannelUpdateZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ* orig_conv = (LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(orig & ~1);
+       LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ* orig_conv = (LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)untag_ptr(orig);
        LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ* ret_conv = MALLOC(sizeof(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ), "LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ");
        *ret_conv = C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_clone(orig_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C3Tuple_1ChannelAnnouncementChannelUpdateChannelUpdateZ_1new(JNIEnv *env, jclass clz, int64_t a, int64_t b, int64_t c) {
        LDKChannelAnnouncement a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = (a & 1) || (a == 0);
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
        a_conv = ChannelAnnouncement_clone(&a_conv);
        LDKChannelUpdate b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = (b & 1) || (b == 0);
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
        b_conv = ChannelUpdate_clone(&b_conv);
        LDKChannelUpdate c_conv;
-       c_conv.inner = (void*)(c & (~1));
-       c_conv.is_owned = (c & 1) || (c == 0);
+       c_conv.inner = untag_ptr(c);
+       c_conv.is_owned = ptr_is_owned(c);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(c_conv);
        c_conv = ChannelUpdate_clone(&c_conv);
        LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ* ret_conv = MALLOC(sizeof(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ), "LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ");
        *ret_conv = C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_new(a_conv, b_conv, c_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C3Tuple_1ChannelAnnouncementChannelUpdateChannelUpdateZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ _res_conv = *(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_free(_res_conv);
 }
 
@@ -17987,10 +16694,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1C3Tuple_1ChannelAnnounce
        int64_t* _res_vals = (*env)->GetLongArrayElements (env, _res, NULL);
        for (size_t h = 0; h < _res_constr.datalen; h++) {
                int64_t _res_conv_59 = _res_vals[h];
-               void* _res_conv_59_ptr = (void*)(((uintptr_t)_res_conv_59) & ~1);
+               void* _res_conv_59_ptr = untag_ptr(_res_conv_59);
                CHECK_ACCESS(_res_conv_59_ptr);
                LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ _res_conv_59_conv = *(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(_res_conv_59_ptr);
-               FREE((void*)_res_conv_59);
+               FREE(untag_ptr(_res_conv_59));
                _res_constr.data[h] = _res_conv_59_conv;
        }
        (*env)->ReleaseLongArrayElements(env, _res, _res_vals, 0);
@@ -18008,8 +16715,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1NodeAnnouncementZ_1free(
        for (size_t s = 0; s < _res_constr.datalen; s++) {
                int64_t _res_conv_18 = _res_vals[s];
                LDKNodeAnnouncement _res_conv_18_conv;
-               _res_conv_18_conv.inner = (void*)(_res_conv_18 & (~1));
-               _res_conv_18_conv.is_owned = (_res_conv_18 & 1) || (_res_conv_18 == 0);
+               _res_conv_18_conv.inner = untag_ptr(_res_conv_18);
+               _res_conv_18_conv.is_owned = ptr_is_owned(_res_conv_18);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(_res_conv_18_conv);
                _res_constr.data[s] = _res_conv_18_conv;
        }
@@ -18020,216 +16727,216 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1NodeAnnouncementZ_1free(
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneLightningErrorZ_1ok(JNIEnv *env, jclass clz) {
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = CResult_NoneLightningErrorZ_ok();
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneLightningErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKLightningError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = LightningError_clone(&e_conv);
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = CResult_NoneLightningErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1NoneLightningErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_NoneLightningErrorZ* o_conv = (LDKCResult_NoneLightningErrorZ*)(o & ~1);
+       LDKCResult_NoneLightningErrorZ* o_conv = (LDKCResult_NoneLightningErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_NoneLightningErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NoneLightningErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NoneLightningErrorZ _res_conv = *(LDKCResult_NoneLightningErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_NoneLightningErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_NoneLightningErrorZ_clone_ptr(LDKCResult_NoneLightningErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_NoneLightningErrorZ_clone_ptr(LDKCResult_NoneLightningErrorZ *NONNULL_PTR arg) {
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = CResult_NoneLightningErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneLightningErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_NoneLightningErrorZ* arg_conv = (LDKCResult_NoneLightningErrorZ*)(arg & ~1);
+       LDKCResult_NoneLightningErrorZ* arg_conv = (LDKCResult_NoneLightningErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_NoneLightningErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneLightningErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_NoneLightningErrorZ* orig_conv = (LDKCResult_NoneLightningErrorZ*)(orig & ~1);
+       LDKCResult_NoneLightningErrorZ* orig_conv = (LDKCResult_NoneLightningErrorZ*)untag_ptr(orig);
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = CResult_NoneLightningErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelUpdateInfoDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKChannelUpdateInfo o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = ChannelUpdateInfo_clone(&o_conv);
        LDKCResult_ChannelUpdateInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelUpdateInfoDecodeErrorZ), "LDKCResult_ChannelUpdateInfoDecodeErrorZ");
        *ret_conv = CResult_ChannelUpdateInfoDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelUpdateInfoDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ChannelUpdateInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelUpdateInfoDecodeErrorZ), "LDKCResult_ChannelUpdateInfoDecodeErrorZ");
        *ret_conv = CResult_ChannelUpdateInfoDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelUpdateInfoDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_ChannelUpdateInfoDecodeErrorZ* o_conv = (LDKCResult_ChannelUpdateInfoDecodeErrorZ*)(o & ~1);
+       LDKCResult_ChannelUpdateInfoDecodeErrorZ* o_conv = (LDKCResult_ChannelUpdateInfoDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_ChannelUpdateInfoDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelUpdateInfoDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ChannelUpdateInfoDecodeErrorZ _res_conv = *(LDKCResult_ChannelUpdateInfoDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_ChannelUpdateInfoDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_ChannelUpdateInfoDecodeErrorZ_clone_ptr(LDKCResult_ChannelUpdateInfoDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_ChannelUpdateInfoDecodeErrorZ_clone_ptr(LDKCResult_ChannelUpdateInfoDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ChannelUpdateInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelUpdateInfoDecodeErrorZ), "LDKCResult_ChannelUpdateInfoDecodeErrorZ");
        *ret_conv = CResult_ChannelUpdateInfoDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelUpdateInfoDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_ChannelUpdateInfoDecodeErrorZ* arg_conv = (LDKCResult_ChannelUpdateInfoDecodeErrorZ*)(arg & ~1);
+       LDKCResult_ChannelUpdateInfoDecodeErrorZ* arg_conv = (LDKCResult_ChannelUpdateInfoDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_ChannelUpdateInfoDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelUpdateInfoDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_ChannelUpdateInfoDecodeErrorZ* orig_conv = (LDKCResult_ChannelUpdateInfoDecodeErrorZ*)(orig & ~1);
+       LDKCResult_ChannelUpdateInfoDecodeErrorZ* orig_conv = (LDKCResult_ChannelUpdateInfoDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_ChannelUpdateInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelUpdateInfoDecodeErrorZ), "LDKCResult_ChannelUpdateInfoDecodeErrorZ");
        *ret_conv = CResult_ChannelUpdateInfoDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelInfoDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKChannelInfo o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = ChannelInfo_clone(&o_conv);
        LDKCResult_ChannelInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelInfoDecodeErrorZ), "LDKCResult_ChannelInfoDecodeErrorZ");
        *ret_conv = CResult_ChannelInfoDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelInfoDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ChannelInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelInfoDecodeErrorZ), "LDKCResult_ChannelInfoDecodeErrorZ");
        *ret_conv = CResult_ChannelInfoDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelInfoDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_ChannelInfoDecodeErrorZ* o_conv = (LDKCResult_ChannelInfoDecodeErrorZ*)(o & ~1);
+       LDKCResult_ChannelInfoDecodeErrorZ* o_conv = (LDKCResult_ChannelInfoDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_ChannelInfoDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelInfoDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ChannelInfoDecodeErrorZ _res_conv = *(LDKCResult_ChannelInfoDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_ChannelInfoDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_ChannelInfoDecodeErrorZ_clone_ptr(LDKCResult_ChannelInfoDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_ChannelInfoDecodeErrorZ_clone_ptr(LDKCResult_ChannelInfoDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ChannelInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelInfoDecodeErrorZ), "LDKCResult_ChannelInfoDecodeErrorZ");
        *ret_conv = CResult_ChannelInfoDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelInfoDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_ChannelInfoDecodeErrorZ* arg_conv = (LDKCResult_ChannelInfoDecodeErrorZ*)(arg & ~1);
+       LDKCResult_ChannelInfoDecodeErrorZ* arg_conv = (LDKCResult_ChannelInfoDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_ChannelInfoDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelInfoDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_ChannelInfoDecodeErrorZ* orig_conv = (LDKCResult_ChannelInfoDecodeErrorZ*)(orig & ~1);
+       LDKCResult_ChannelInfoDecodeErrorZ* orig_conv = (LDKCResult_ChannelInfoDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_ChannelInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelInfoDecodeErrorZ), "LDKCResult_ChannelInfoDecodeErrorZ");
        *ret_conv = CResult_ChannelInfoDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RoutingFeesDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKRoutingFees o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = RoutingFees_clone(&o_conv);
        LDKCResult_RoutingFeesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RoutingFeesDecodeErrorZ), "LDKCResult_RoutingFeesDecodeErrorZ");
        *ret_conv = CResult_RoutingFeesDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RoutingFeesDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_RoutingFeesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RoutingFeesDecodeErrorZ), "LDKCResult_RoutingFeesDecodeErrorZ");
        *ret_conv = CResult_RoutingFeesDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1RoutingFeesDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_RoutingFeesDecodeErrorZ* o_conv = (LDKCResult_RoutingFeesDecodeErrorZ*)(o & ~1);
+       LDKCResult_RoutingFeesDecodeErrorZ* o_conv = (LDKCResult_RoutingFeesDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_RoutingFeesDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1RoutingFeesDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_RoutingFeesDecodeErrorZ _res_conv = *(LDKCResult_RoutingFeesDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_RoutingFeesDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_RoutingFeesDecodeErrorZ_clone_ptr(LDKCResult_RoutingFeesDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_RoutingFeesDecodeErrorZ_clone_ptr(LDKCResult_RoutingFeesDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_RoutingFeesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RoutingFeesDecodeErrorZ), "LDKCResult_RoutingFeesDecodeErrorZ");
        *ret_conv = CResult_RoutingFeesDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RoutingFeesDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_RoutingFeesDecodeErrorZ* arg_conv = (LDKCResult_RoutingFeesDecodeErrorZ*)(arg & ~1);
+       LDKCResult_RoutingFeesDecodeErrorZ* arg_conv = (LDKCResult_RoutingFeesDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_RoutingFeesDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RoutingFeesDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_RoutingFeesDecodeErrorZ* orig_conv = (LDKCResult_RoutingFeesDecodeErrorZ*)(orig & ~1);
+       LDKCResult_RoutingFeesDecodeErrorZ* orig_conv = (LDKCResult_RoutingFeesDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_RoutingFeesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RoutingFeesDecodeErrorZ), "LDKCResult_RoutingFeesDecodeErrorZ");
        *ret_conv = CResult_RoutingFeesDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1NetAddressZ_1free(JNIEnv *env, jclass clz, int64_tArray _res) {
@@ -18242,10 +16949,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1NetAddressZ_1free(JNIEnv
        int64_t* _res_vals = (*env)->GetLongArrayElements (env, _res, NULL);
        for (size_t m = 0; m < _res_constr.datalen; m++) {
                int64_t _res_conv_12 = _res_vals[m];
-               void* _res_conv_12_ptr = (void*)(((uintptr_t)_res_conv_12) & ~1);
+               void* _res_conv_12_ptr = untag_ptr(_res_conv_12);
                CHECK_ACCESS(_res_conv_12_ptr);
                LDKNetAddress _res_conv_12_conv = *(LDKNetAddress*)(_res_conv_12_ptr);
-               FREE((void*)_res_conv_12);
+               FREE(untag_ptr(_res_conv_12));
                _res_constr.data[m] = _res_conv_12_conv;
        }
        (*env)->ReleaseLongArrayElements(env, _res, _res_vals, 0);
@@ -18254,203 +16961,204 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1NetAddressZ_1free(JNIEnv
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAnnouncementInfoDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKNodeAnnouncementInfo o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = NodeAnnouncementInfo_clone(&o_conv);
        LDKCResult_NodeAnnouncementInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAnnouncementInfoDecodeErrorZ), "LDKCResult_NodeAnnouncementInfoDecodeErrorZ");
        *ret_conv = CResult_NodeAnnouncementInfoDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAnnouncementInfoDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_NodeAnnouncementInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAnnouncementInfoDecodeErrorZ), "LDKCResult_NodeAnnouncementInfoDecodeErrorZ");
        *ret_conv = CResult_NodeAnnouncementInfoDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAnnouncementInfoDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_NodeAnnouncementInfoDecodeErrorZ* o_conv = (LDKCResult_NodeAnnouncementInfoDecodeErrorZ*)(o & ~1);
+       LDKCResult_NodeAnnouncementInfoDecodeErrorZ* o_conv = (LDKCResult_NodeAnnouncementInfoDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_NodeAnnouncementInfoDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAnnouncementInfoDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NodeAnnouncementInfoDecodeErrorZ _res_conv = *(LDKCResult_NodeAnnouncementInfoDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_NodeAnnouncementInfoDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_NodeAnnouncementInfoDecodeErrorZ_clone_ptr(LDKCResult_NodeAnnouncementInfoDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_NodeAnnouncementInfoDecodeErrorZ_clone_ptr(LDKCResult_NodeAnnouncementInfoDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_NodeAnnouncementInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAnnouncementInfoDecodeErrorZ), "LDKCResult_NodeAnnouncementInfoDecodeErrorZ");
        *ret_conv = CResult_NodeAnnouncementInfoDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAnnouncementInfoDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_NodeAnnouncementInfoDecodeErrorZ* arg_conv = (LDKCResult_NodeAnnouncementInfoDecodeErrorZ*)(arg & ~1);
+       LDKCResult_NodeAnnouncementInfoDecodeErrorZ* arg_conv = (LDKCResult_NodeAnnouncementInfoDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_NodeAnnouncementInfoDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAnnouncementInfoDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_NodeAnnouncementInfoDecodeErrorZ* orig_conv = (LDKCResult_NodeAnnouncementInfoDecodeErrorZ*)(orig & ~1);
+       LDKCResult_NodeAnnouncementInfoDecodeErrorZ* orig_conv = (LDKCResult_NodeAnnouncementInfoDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_NodeAnnouncementInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAnnouncementInfoDecodeErrorZ), "LDKCResult_NodeAnnouncementInfoDecodeErrorZ");
        *ret_conv = CResult_NodeAnnouncementInfoDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAliasDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKNodeAlias o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = NodeAlias_clone(&o_conv);
        LDKCResult_NodeAliasDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAliasDecodeErrorZ), "LDKCResult_NodeAliasDecodeErrorZ");
        *ret_conv = CResult_NodeAliasDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAliasDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_NodeAliasDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAliasDecodeErrorZ), "LDKCResult_NodeAliasDecodeErrorZ");
        *ret_conv = CResult_NodeAliasDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAliasDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_NodeAliasDecodeErrorZ* o_conv = (LDKCResult_NodeAliasDecodeErrorZ*)(o & ~1);
+       LDKCResult_NodeAliasDecodeErrorZ* o_conv = (LDKCResult_NodeAliasDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_NodeAliasDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAliasDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NodeAliasDecodeErrorZ _res_conv = *(LDKCResult_NodeAliasDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_NodeAliasDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_NodeAliasDecodeErrorZ_clone_ptr(LDKCResult_NodeAliasDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_NodeAliasDecodeErrorZ_clone_ptr(LDKCResult_NodeAliasDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_NodeAliasDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAliasDecodeErrorZ), "LDKCResult_NodeAliasDecodeErrorZ");
        *ret_conv = CResult_NodeAliasDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAliasDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_NodeAliasDecodeErrorZ* arg_conv = (LDKCResult_NodeAliasDecodeErrorZ*)(arg & ~1);
+       LDKCResult_NodeAliasDecodeErrorZ* arg_conv = (LDKCResult_NodeAliasDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_NodeAliasDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAliasDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_NodeAliasDecodeErrorZ* orig_conv = (LDKCResult_NodeAliasDecodeErrorZ*)(orig & ~1);
+       LDKCResult_NodeAliasDecodeErrorZ* orig_conv = (LDKCResult_NodeAliasDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_NodeAliasDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAliasDecodeErrorZ), "LDKCResult_NodeAliasDecodeErrorZ");
        *ret_conv = CResult_NodeAliasDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeInfoDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKNodeInfo o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = NodeInfo_clone(&o_conv);
        LDKCResult_NodeInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeInfoDecodeErrorZ), "LDKCResult_NodeInfoDecodeErrorZ");
        *ret_conv = CResult_NodeInfoDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeInfoDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_NodeInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeInfoDecodeErrorZ), "LDKCResult_NodeInfoDecodeErrorZ");
        *ret_conv = CResult_NodeInfoDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1NodeInfoDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_NodeInfoDecodeErrorZ* o_conv = (LDKCResult_NodeInfoDecodeErrorZ*)(o & ~1);
+       LDKCResult_NodeInfoDecodeErrorZ* o_conv = (LDKCResult_NodeInfoDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_NodeInfoDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NodeInfoDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NodeInfoDecodeErrorZ _res_conv = *(LDKCResult_NodeInfoDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_NodeInfoDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_NodeInfoDecodeErrorZ_clone_ptr(LDKCResult_NodeInfoDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_NodeInfoDecodeErrorZ_clone_ptr(LDKCResult_NodeInfoDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_NodeInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeInfoDecodeErrorZ), "LDKCResult_NodeInfoDecodeErrorZ");
        *ret_conv = CResult_NodeInfoDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeInfoDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_NodeInfoDecodeErrorZ* arg_conv = (LDKCResult_NodeInfoDecodeErrorZ*)(arg & ~1);
+       LDKCResult_NodeInfoDecodeErrorZ* arg_conv = (LDKCResult_NodeInfoDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_NodeInfoDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeInfoDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_NodeInfoDecodeErrorZ* orig_conv = (LDKCResult_NodeInfoDecodeErrorZ*)(orig & ~1);
+       LDKCResult_NodeInfoDecodeErrorZ* orig_conv = (LDKCResult_NodeInfoDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_NodeInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeInfoDecodeErrorZ), "LDKCResult_NodeInfoDecodeErrorZ");
        *ret_conv = CResult_NodeInfoDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NetworkGraphDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKNetworkGraph o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        // WARNING: we need a move here but no clone is available for LDKNetworkGraph
+       
        LDKCResult_NetworkGraphDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NetworkGraphDecodeErrorZ), "LDKCResult_NetworkGraphDecodeErrorZ");
        *ret_conv = CResult_NetworkGraphDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NetworkGraphDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_NetworkGraphDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NetworkGraphDecodeErrorZ), "LDKCResult_NetworkGraphDecodeErrorZ");
        *ret_conv = CResult_NetworkGraphDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1NetworkGraphDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_NetworkGraphDecodeErrorZ* o_conv = (LDKCResult_NetworkGraphDecodeErrorZ*)(o & ~1);
+       LDKCResult_NetworkGraphDecodeErrorZ* o_conv = (LDKCResult_NetworkGraphDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_NetworkGraphDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NetworkGraphDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NetworkGraphDecodeErrorZ _res_conv = *(LDKCResult_NetworkGraphDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_NetworkGraphDecodeErrorZ_free(_res_conv);
 }
 
@@ -18464,217 +17172,217 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1CVec_1NetAddressZZ
        int64_t* o_vals = (*env)->GetLongArrayElements (env, o, NULL);
        for (size_t m = 0; m < o_constr.datalen; m++) {
                int64_t o_conv_12 = o_vals[m];
-               void* o_conv_12_ptr = (void*)(((uintptr_t)o_conv_12) & ~1);
+               void* o_conv_12_ptr = untag_ptr(o_conv_12);
                CHECK_ACCESS(o_conv_12_ptr);
                LDKNetAddress o_conv_12_conv = *(LDKNetAddress*)(o_conv_12_ptr);
-               o_conv_12_conv = NetAddress_clone((LDKNetAddress*)(((uintptr_t)o_conv_12) & ~1));
+               o_conv_12_conv = NetAddress_clone((LDKNetAddress*)untag_ptr(o_conv_12));
                o_constr.data[m] = o_conv_12_conv;
        }
        (*env)->ReleaseLongArrayElements(env, o, o_vals, 0);
        LDKCOption_CVec_NetAddressZZ *ret_copy = MALLOC(sizeof(LDKCOption_CVec_NetAddressZZ), "LDKCOption_CVec_NetAddressZZ");
        *ret_copy = COption_CVec_NetAddressZZ_some(o_constr);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1CVec_1NetAddressZZ_1none(JNIEnv *env, jclass clz) {
        LDKCOption_CVec_NetAddressZZ *ret_copy = MALLOC(sizeof(LDKCOption_CVec_NetAddressZZ), "LDKCOption_CVec_NetAddressZZ");
        *ret_copy = COption_CVec_NetAddressZZ_none();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1CVec_1NetAddressZZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_CVec_NetAddressZZ _res_conv = *(LDKCOption_CVec_NetAddressZZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        COption_CVec_NetAddressZZ_free(_res_conv);
 }
 
-static inline uintptr_t COption_CVec_NetAddressZZ_clone_ptr(LDKCOption_CVec_NetAddressZZ *NONNULL_PTR arg) {
+static inline uint64_t COption_CVec_NetAddressZZ_clone_ptr(LDKCOption_CVec_NetAddressZZ *NONNULL_PTR arg) {
        LDKCOption_CVec_NetAddressZZ *ret_copy = MALLOC(sizeof(LDKCOption_CVec_NetAddressZZ), "LDKCOption_CVec_NetAddressZZ");
        *ret_copy = COption_CVec_NetAddressZZ_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1CVec_1NetAddressZZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCOption_CVec_NetAddressZZ* arg_conv = (LDKCOption_CVec_NetAddressZZ*)arg;
+       LDKCOption_CVec_NetAddressZZ* arg_conv = (LDKCOption_CVec_NetAddressZZ*)untag_ptr(arg);
        int64_t ret_conv = COption_CVec_NetAddressZZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1CVec_1NetAddressZZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCOption_CVec_NetAddressZZ* orig_conv = (LDKCOption_CVec_NetAddressZZ*)orig;
+       LDKCOption_CVec_NetAddressZZ* orig_conv = (LDKCOption_CVec_NetAddressZZ*)untag_ptr(orig);
        LDKCOption_CVec_NetAddressZZ *ret_copy = MALLOC(sizeof(LDKCOption_CVec_NetAddressZZ), "LDKCOption_CVec_NetAddressZZ");
        *ret_copy = COption_CVec_NetAddressZZ_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1DelayedPaymentOutputDescriptorDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKDelayedPaymentOutputDescriptor o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = DelayedPaymentOutputDescriptor_clone(&o_conv);
        LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ), "LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1DelayedPaymentOutputDescriptorDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ), "LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1DelayedPaymentOutputDescriptorDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ* o_conv = (LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ*)(o & ~1);
+       LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ* o_conv = (LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1DelayedPaymentOutputDescriptorDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ _res_conv = *(LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_clone_ptr(LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_clone_ptr(LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ), "LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1DelayedPaymentOutputDescriptorDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ* arg_conv = (LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ*)(arg & ~1);
+       LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ* arg_conv = (LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1DelayedPaymentOutputDescriptorDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ* orig_conv = (LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ*)(orig & ~1);
+       LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ* orig_conv = (LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ), "LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1StaticPaymentOutputDescriptorDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKStaticPaymentOutputDescriptor o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = StaticPaymentOutputDescriptor_clone(&o_conv);
        LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ), "LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_StaticPaymentOutputDescriptorDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1StaticPaymentOutputDescriptorDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ), "LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_StaticPaymentOutputDescriptorDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1StaticPaymentOutputDescriptorDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ* o_conv = (LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ*)(o & ~1);
+       LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ* o_conv = (LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_StaticPaymentOutputDescriptorDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1StaticPaymentOutputDescriptorDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ _res_conv = *(LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_StaticPaymentOutputDescriptorDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_StaticPaymentOutputDescriptorDecodeErrorZ_clone_ptr(LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_StaticPaymentOutputDescriptorDecodeErrorZ_clone_ptr(LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ), "LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_StaticPaymentOutputDescriptorDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1StaticPaymentOutputDescriptorDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ* arg_conv = (LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ*)(arg & ~1);
+       LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ* arg_conv = (LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_StaticPaymentOutputDescriptorDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1StaticPaymentOutputDescriptorDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ* orig_conv = (LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ*)(orig & ~1);
+       LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ* orig_conv = (LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ), "LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_StaticPaymentOutputDescriptorDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SpendableOutputDescriptorDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKSpendableOutputDescriptor o_conv = *(LDKSpendableOutputDescriptor*)(o_ptr);
-       o_conv = SpendableOutputDescriptor_clone((LDKSpendableOutputDescriptor*)(((uintptr_t)o) & ~1));
+       o_conv = SpendableOutputDescriptor_clone((LDKSpendableOutputDescriptor*)untag_ptr(o));
        LDKCResult_SpendableOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SpendableOutputDescriptorDecodeErrorZ), "LDKCResult_SpendableOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_SpendableOutputDescriptorDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SpendableOutputDescriptorDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_SpendableOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SpendableOutputDescriptorDecodeErrorZ), "LDKCResult_SpendableOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_SpendableOutputDescriptorDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1SpendableOutputDescriptorDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_SpendableOutputDescriptorDecodeErrorZ* o_conv = (LDKCResult_SpendableOutputDescriptorDecodeErrorZ*)(o & ~1);
+       LDKCResult_SpendableOutputDescriptorDecodeErrorZ* o_conv = (LDKCResult_SpendableOutputDescriptorDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_SpendableOutputDescriptorDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1SpendableOutputDescriptorDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_SpendableOutputDescriptorDecodeErrorZ _res_conv = *(LDKCResult_SpendableOutputDescriptorDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_SpendableOutputDescriptorDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_SpendableOutputDescriptorDecodeErrorZ_clone_ptr(LDKCResult_SpendableOutputDescriptorDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_SpendableOutputDescriptorDecodeErrorZ_clone_ptr(LDKCResult_SpendableOutputDescriptorDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_SpendableOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SpendableOutputDescriptorDecodeErrorZ), "LDKCResult_SpendableOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_SpendableOutputDescriptorDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SpendableOutputDescriptorDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_SpendableOutputDescriptorDecodeErrorZ* arg_conv = (LDKCResult_SpendableOutputDescriptorDecodeErrorZ*)(arg & ~1);
+       LDKCResult_SpendableOutputDescriptorDecodeErrorZ* arg_conv = (LDKCResult_SpendableOutputDescriptorDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_SpendableOutputDescriptorDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SpendableOutputDescriptorDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_SpendableOutputDescriptorDecodeErrorZ* orig_conv = (LDKCResult_SpendableOutputDescriptorDecodeErrorZ*)(orig & ~1);
+       LDKCResult_SpendableOutputDescriptorDecodeErrorZ* orig_conv = (LDKCResult_SpendableOutputDescriptorDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_SpendableOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SpendableOutputDescriptorDecodeErrorZ), "LDKCResult_SpendableOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_SpendableOutputDescriptorDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1PaymentPreimageZ_1free(JNIEnv *env, jclass clz, jobjectArray _res) {
@@ -18694,22 +17402,22 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1PaymentPreimageZ_1free(J
        CVec_PaymentPreimageZ_free(_res_constr);
 }
 
-static inline uintptr_t C2Tuple_SignatureCVec_SignatureZZ_clone_ptr(LDKC2Tuple_SignatureCVec_SignatureZZ *NONNULL_PTR arg) {
+static inline uint64_t C2Tuple_SignatureCVec_SignatureZZ_clone_ptr(LDKC2Tuple_SignatureCVec_SignatureZZ *NONNULL_PTR arg) {
        LDKC2Tuple_SignatureCVec_SignatureZZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_SignatureCVec_SignatureZZ), "LDKC2Tuple_SignatureCVec_SignatureZZ");
        *ret_conv = C2Tuple_SignatureCVec_SignatureZZ_clone(arg);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1SignatureCVec_1SignatureZZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKC2Tuple_SignatureCVec_SignatureZZ* arg_conv = (LDKC2Tuple_SignatureCVec_SignatureZZ*)(arg & ~1);
+       LDKC2Tuple_SignatureCVec_SignatureZZ* arg_conv = (LDKC2Tuple_SignatureCVec_SignatureZZ*)untag_ptr(arg);
        int64_t ret_conv = C2Tuple_SignatureCVec_SignatureZZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1SignatureCVec_1SignatureZZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKC2Tuple_SignatureCVec_SignatureZZ* orig_conv = (LDKC2Tuple_SignatureCVec_SignatureZZ*)(orig & ~1);
+       LDKC2Tuple_SignatureCVec_SignatureZZ* orig_conv = (LDKC2Tuple_SignatureCVec_SignatureZZ*)untag_ptr(orig);
        LDKC2Tuple_SignatureCVec_SignatureZZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_SignatureCVec_SignatureZZ), "LDKC2Tuple_SignatureCVec_SignatureZZ");
        *ret_conv = C2Tuple_SignatureCVec_SignatureZZ_clone(orig_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1SignatureCVec_1SignatureZZ_1new(JNIEnv *env, jclass clz, int8_tArray a, jobjectArray b) {
@@ -18731,65 +17439,65 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1SignatureCVec_1Sig
        }
        LDKC2Tuple_SignatureCVec_SignatureZZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_SignatureCVec_SignatureZZ), "LDKC2Tuple_SignatureCVec_SignatureZZ");
        *ret_conv = C2Tuple_SignatureCVec_SignatureZZ_new(a_ref, b_constr);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C2Tuple_1SignatureCVec_1SignatureZZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_SignatureCVec_SignatureZZ _res_conv = *(LDKC2Tuple_SignatureCVec_SignatureZZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        C2Tuple_SignatureCVec_SignatureZZ_free(_res_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1SignatureCVec_1SignatureZZNoneZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKC2Tuple_SignatureCVec_SignatureZZ o_conv = *(LDKC2Tuple_SignatureCVec_SignatureZZ*)(o_ptr);
-       o_conv = C2Tuple_SignatureCVec_SignatureZZ_clone((LDKC2Tuple_SignatureCVec_SignatureZZ*)(((uintptr_t)o) & ~1));
+       o_conv = C2Tuple_SignatureCVec_SignatureZZ_clone((LDKC2Tuple_SignatureCVec_SignatureZZ*)untag_ptr(o));
        LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ), "LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ");
        *ret_conv = CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1SignatureCVec_1SignatureZZNoneZ_1err(JNIEnv *env, jclass clz) {
        LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ), "LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ");
        *ret_conv = CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_err();
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1SignatureCVec_1SignatureZZNoneZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* o_conv = (LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(o & ~1);
+       LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* o_conv = (LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)untag_ptr(o);
        jboolean ret_conv = CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1SignatureCVec_1SignatureZZNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ _res_conv = *(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_clone_ptr(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_clone_ptr(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ *NONNULL_PTR arg) {
        LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ), "LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ");
        *ret_conv = CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1SignatureCVec_1SignatureZZNoneZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* arg_conv = (LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(arg & ~1);
+       LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* arg_conv = (LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1SignatureCVec_1SignatureZZNoneZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* orig_conv = (LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(orig & ~1);
+       LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* orig_conv = (LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)untag_ptr(orig);
        LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ), "LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ");
        *ret_conv = CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SignatureNoneZ_1ok(JNIEnv *env, jclass clz, int8_tArray o) {
@@ -18798,64 +17506,64 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SignatureNoneZ_1ok
        (*env)->GetByteArrayRegion(env, o, 0, 64, o_ref.compact_form);
        LDKCResult_SignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_SignatureNoneZ), "LDKCResult_SignatureNoneZ");
        *ret_conv = CResult_SignatureNoneZ_ok(o_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SignatureNoneZ_1err(JNIEnv *env, jclass clz) {
        LDKCResult_SignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_SignatureNoneZ), "LDKCResult_SignatureNoneZ");
        *ret_conv = CResult_SignatureNoneZ_err();
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1SignatureNoneZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_SignatureNoneZ* o_conv = (LDKCResult_SignatureNoneZ*)(o & ~1);
+       LDKCResult_SignatureNoneZ* o_conv = (LDKCResult_SignatureNoneZ*)untag_ptr(o);
        jboolean ret_conv = CResult_SignatureNoneZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1SignatureNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_SignatureNoneZ _res_conv = *(LDKCResult_SignatureNoneZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_SignatureNoneZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_SignatureNoneZ_clone_ptr(LDKCResult_SignatureNoneZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_SignatureNoneZ_clone_ptr(LDKCResult_SignatureNoneZ *NONNULL_PTR arg) {
        LDKCResult_SignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_SignatureNoneZ), "LDKCResult_SignatureNoneZ");
        *ret_conv = CResult_SignatureNoneZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SignatureNoneZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_SignatureNoneZ* arg_conv = (LDKCResult_SignatureNoneZ*)(arg & ~1);
+       LDKCResult_SignatureNoneZ* arg_conv = (LDKCResult_SignatureNoneZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_SignatureNoneZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SignatureNoneZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_SignatureNoneZ* orig_conv = (LDKCResult_SignatureNoneZ*)(orig & ~1);
+       LDKCResult_SignatureNoneZ* orig_conv = (LDKCResult_SignatureNoneZ*)untag_ptr(orig);
        LDKCResult_SignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_SignatureNoneZ), "LDKCResult_SignatureNoneZ");
        *ret_conv = CResult_SignatureNoneZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
-static inline uintptr_t C2Tuple_SignatureSignatureZ_clone_ptr(LDKC2Tuple_SignatureSignatureZ *NONNULL_PTR arg) {
+static inline uint64_t C2Tuple_SignatureSignatureZ_clone_ptr(LDKC2Tuple_SignatureSignatureZ *NONNULL_PTR arg) {
        LDKC2Tuple_SignatureSignatureZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_SignatureSignatureZ), "LDKC2Tuple_SignatureSignatureZ");
        *ret_conv = C2Tuple_SignatureSignatureZ_clone(arg);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1SignatureSignatureZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKC2Tuple_SignatureSignatureZ* arg_conv = (LDKC2Tuple_SignatureSignatureZ*)(arg & ~1);
+       LDKC2Tuple_SignatureSignatureZ* arg_conv = (LDKC2Tuple_SignatureSignatureZ*)untag_ptr(arg);
        int64_t ret_conv = C2Tuple_SignatureSignatureZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1SignatureSignatureZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKC2Tuple_SignatureSignatureZ* orig_conv = (LDKC2Tuple_SignatureSignatureZ*)(orig & ~1);
+       LDKC2Tuple_SignatureSignatureZ* orig_conv = (LDKC2Tuple_SignatureSignatureZ*)untag_ptr(orig);
        LDKC2Tuple_SignatureSignatureZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_SignatureSignatureZ), "LDKC2Tuple_SignatureSignatureZ");
        *ret_conv = C2Tuple_SignatureSignatureZ_clone(orig_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1SignatureSignatureZ_1new(JNIEnv *env, jclass clz, int8_tArray a, int8_tArray b) {
@@ -18867,65 +17575,65 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1SignatureSignature
        (*env)->GetByteArrayRegion(env, b, 0, 64, b_ref.compact_form);
        LDKC2Tuple_SignatureSignatureZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_SignatureSignatureZ), "LDKC2Tuple_SignatureSignatureZ");
        *ret_conv = C2Tuple_SignatureSignatureZ_new(a_ref, b_ref);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C2Tuple_1SignatureSignatureZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_SignatureSignatureZ _res_conv = *(LDKC2Tuple_SignatureSignatureZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        C2Tuple_SignatureSignatureZ_free(_res_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1SignatureSignatureZNoneZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKC2Tuple_SignatureSignatureZ o_conv = *(LDKC2Tuple_SignatureSignatureZ*)(o_ptr);
-       o_conv = C2Tuple_SignatureSignatureZ_clone((LDKC2Tuple_SignatureSignatureZ*)(((uintptr_t)o) & ~1));
+       o_conv = C2Tuple_SignatureSignatureZ_clone((LDKC2Tuple_SignatureSignatureZ*)untag_ptr(o));
        LDKCResult_C2Tuple_SignatureSignatureZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_SignatureSignatureZNoneZ), "LDKCResult_C2Tuple_SignatureSignatureZNoneZ");
        *ret_conv = CResult_C2Tuple_SignatureSignatureZNoneZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1SignatureSignatureZNoneZ_1err(JNIEnv *env, jclass clz) {
        LDKCResult_C2Tuple_SignatureSignatureZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_SignatureSignatureZNoneZ), "LDKCResult_C2Tuple_SignatureSignatureZNoneZ");
        *ret_conv = CResult_C2Tuple_SignatureSignatureZNoneZ_err();
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1SignatureSignatureZNoneZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_C2Tuple_SignatureSignatureZNoneZ* o_conv = (LDKCResult_C2Tuple_SignatureSignatureZNoneZ*)(o & ~1);
+       LDKCResult_C2Tuple_SignatureSignatureZNoneZ* o_conv = (LDKCResult_C2Tuple_SignatureSignatureZNoneZ*)untag_ptr(o);
        jboolean ret_conv = CResult_C2Tuple_SignatureSignatureZNoneZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1SignatureSignatureZNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_C2Tuple_SignatureSignatureZNoneZ _res_conv = *(LDKCResult_C2Tuple_SignatureSignatureZNoneZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_C2Tuple_SignatureSignatureZNoneZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_C2Tuple_SignatureSignatureZNoneZ_clone_ptr(LDKCResult_C2Tuple_SignatureSignatureZNoneZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_C2Tuple_SignatureSignatureZNoneZ_clone_ptr(LDKCResult_C2Tuple_SignatureSignatureZNoneZ *NONNULL_PTR arg) {
        LDKCResult_C2Tuple_SignatureSignatureZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_SignatureSignatureZNoneZ), "LDKCResult_C2Tuple_SignatureSignatureZNoneZ");
        *ret_conv = CResult_C2Tuple_SignatureSignatureZNoneZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1SignatureSignatureZNoneZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_C2Tuple_SignatureSignatureZNoneZ* arg_conv = (LDKCResult_C2Tuple_SignatureSignatureZNoneZ*)(arg & ~1);
+       LDKCResult_C2Tuple_SignatureSignatureZNoneZ* arg_conv = (LDKCResult_C2Tuple_SignatureSignatureZNoneZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_C2Tuple_SignatureSignatureZNoneZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1SignatureSignatureZNoneZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_C2Tuple_SignatureSignatureZNoneZ* orig_conv = (LDKCResult_C2Tuple_SignatureSignatureZNoneZ*)(orig & ~1);
+       LDKCResult_C2Tuple_SignatureSignatureZNoneZ* orig_conv = (LDKCResult_C2Tuple_SignatureSignatureZNoneZ*)untag_ptr(orig);
        LDKCResult_C2Tuple_SignatureSignatureZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_SignatureSignatureZNoneZ), "LDKCResult_C2Tuple_SignatureSignatureZNoneZ");
        *ret_conv = CResult_C2Tuple_SignatureSignatureZNoneZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SecretKeyNoneZ_1ok(JNIEnv *env, jclass clz, int8_tArray o) {
@@ -18934,50 +17642,50 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SecretKeyNoneZ_1ok
        (*env)->GetByteArrayRegion(env, o, 0, 32, o_ref.bytes);
        LDKCResult_SecretKeyNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_SecretKeyNoneZ), "LDKCResult_SecretKeyNoneZ");
        *ret_conv = CResult_SecretKeyNoneZ_ok(o_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SecretKeyNoneZ_1err(JNIEnv *env, jclass clz) {
        LDKCResult_SecretKeyNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_SecretKeyNoneZ), "LDKCResult_SecretKeyNoneZ");
        *ret_conv = CResult_SecretKeyNoneZ_err();
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1SecretKeyNoneZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_SecretKeyNoneZ* o_conv = (LDKCResult_SecretKeyNoneZ*)(o & ~1);
+       LDKCResult_SecretKeyNoneZ* o_conv = (LDKCResult_SecretKeyNoneZ*)untag_ptr(o);
        jboolean ret_conv = CResult_SecretKeyNoneZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1SecretKeyNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_SecretKeyNoneZ _res_conv = *(LDKCResult_SecretKeyNoneZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_SecretKeyNoneZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_SecretKeyNoneZ_clone_ptr(LDKCResult_SecretKeyNoneZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_SecretKeyNoneZ_clone_ptr(LDKCResult_SecretKeyNoneZ *NONNULL_PTR arg) {
        LDKCResult_SecretKeyNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_SecretKeyNoneZ), "LDKCResult_SecretKeyNoneZ");
        *ret_conv = CResult_SecretKeyNoneZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SecretKeyNoneZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_SecretKeyNoneZ* arg_conv = (LDKCResult_SecretKeyNoneZ*)(arg & ~1);
+       LDKCResult_SecretKeyNoneZ* arg_conv = (LDKCResult_SecretKeyNoneZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_SecretKeyNoneZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SecretKeyNoneZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_SecretKeyNoneZ* orig_conv = (LDKCResult_SecretKeyNoneZ*)(orig & ~1);
+       LDKCResult_SecretKeyNoneZ* orig_conv = (LDKCResult_SecretKeyNoneZ*)untag_ptr(orig);
        LDKCResult_SecretKeyNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_SecretKeyNoneZ), "LDKCResult_SecretKeyNoneZ");
        *ret_conv = CResult_SecretKeyNoneZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SignDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKSign o_conv = *(LDKSign*)(o_ptr);
        if (o_conv.free == LDKSign_JCalls_free) {
@@ -18986,51 +17694,51 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SignDecodeErrorZ_1
        }
        LDKCResult_SignDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SignDecodeErrorZ), "LDKCResult_SignDecodeErrorZ");
        *ret_conv = CResult_SignDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SignDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_SignDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SignDecodeErrorZ), "LDKCResult_SignDecodeErrorZ");
        *ret_conv = CResult_SignDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1SignDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_SignDecodeErrorZ* o_conv = (LDKCResult_SignDecodeErrorZ*)(o & ~1);
+       LDKCResult_SignDecodeErrorZ* o_conv = (LDKCResult_SignDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_SignDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1SignDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_SignDecodeErrorZ _res_conv = *(LDKCResult_SignDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_SignDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_SignDecodeErrorZ_clone_ptr(LDKCResult_SignDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_SignDecodeErrorZ_clone_ptr(LDKCResult_SignDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_SignDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SignDecodeErrorZ), "LDKCResult_SignDecodeErrorZ");
        *ret_conv = CResult_SignDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SignDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_SignDecodeErrorZ* arg_conv = (LDKCResult_SignDecodeErrorZ*)(arg & ~1);
+       LDKCResult_SignDecodeErrorZ* arg_conv = (LDKCResult_SignDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_SignDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SignDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_SignDecodeErrorZ* orig_conv = (LDKCResult_SignDecodeErrorZ*)(orig & ~1);
+       LDKCResult_SignDecodeErrorZ* orig_conv = (LDKCResult_SignDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_SignDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SignDecodeErrorZ), "LDKCResult_SignDecodeErrorZ");
        *ret_conv = CResult_SignDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1u5Z_1free(JNIEnv *env, jclass clz, jobjectArray _res) {
@@ -19056,46 +17764,46 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RecoverableSignatu
        (*env)->GetByteArrayRegion(env, o, 0, 68, o_ref.serialized_form);
        LDKCResult_RecoverableSignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_RecoverableSignatureNoneZ), "LDKCResult_RecoverableSignatureNoneZ");
        *ret_conv = CResult_RecoverableSignatureNoneZ_ok(o_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RecoverableSignatureNoneZ_1err(JNIEnv *env, jclass clz) {
        LDKCResult_RecoverableSignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_RecoverableSignatureNoneZ), "LDKCResult_RecoverableSignatureNoneZ");
        *ret_conv = CResult_RecoverableSignatureNoneZ_err();
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1RecoverableSignatureNoneZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_RecoverableSignatureNoneZ* o_conv = (LDKCResult_RecoverableSignatureNoneZ*)(o & ~1);
+       LDKCResult_RecoverableSignatureNoneZ* o_conv = (LDKCResult_RecoverableSignatureNoneZ*)untag_ptr(o);
        jboolean ret_conv = CResult_RecoverableSignatureNoneZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1RecoverableSignatureNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_RecoverableSignatureNoneZ _res_conv = *(LDKCResult_RecoverableSignatureNoneZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_RecoverableSignatureNoneZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_RecoverableSignatureNoneZ_clone_ptr(LDKCResult_RecoverableSignatureNoneZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_RecoverableSignatureNoneZ_clone_ptr(LDKCResult_RecoverableSignatureNoneZ *NONNULL_PTR arg) {
        LDKCResult_RecoverableSignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_RecoverableSignatureNoneZ), "LDKCResult_RecoverableSignatureNoneZ");
        *ret_conv = CResult_RecoverableSignatureNoneZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RecoverableSignatureNoneZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_RecoverableSignatureNoneZ* arg_conv = (LDKCResult_RecoverableSignatureNoneZ*)(arg & ~1);
+       LDKCResult_RecoverableSignatureNoneZ* arg_conv = (LDKCResult_RecoverableSignatureNoneZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_RecoverableSignatureNoneZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RecoverableSignatureNoneZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_RecoverableSignatureNoneZ* orig_conv = (LDKCResult_RecoverableSignatureNoneZ*)(orig & ~1);
+       LDKCResult_RecoverableSignatureNoneZ* orig_conv = (LDKCResult_RecoverableSignatureNoneZ*)untag_ptr(orig);
        LDKCResult_RecoverableSignatureNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_RecoverableSignatureNoneZ), "LDKCResult_RecoverableSignatureNoneZ");
        *ret_conv = CResult_RecoverableSignatureNoneZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1u8Z_1free(JNIEnv *env, jclass clz, int8_tArray _res) {
@@ -19141,101 +17849,101 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1CVec_1u8ZZNo
        }
        LDKCResult_CVec_CVec_u8ZZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_CVec_u8ZZNoneZ), "LDKCResult_CVec_CVec_u8ZZNoneZ");
        *ret_conv = CResult_CVec_CVec_u8ZZNoneZ_ok(o_constr);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1CVec_1u8ZZNoneZ_1err(JNIEnv *env, jclass clz) {
        LDKCResult_CVec_CVec_u8ZZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_CVec_u8ZZNoneZ), "LDKCResult_CVec_CVec_u8ZZNoneZ");
        *ret_conv = CResult_CVec_CVec_u8ZZNoneZ_err();
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1CVec_1u8ZZNoneZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_CVec_CVec_u8ZZNoneZ* o_conv = (LDKCResult_CVec_CVec_u8ZZNoneZ*)(o & ~1);
+       LDKCResult_CVec_CVec_u8ZZNoneZ* o_conv = (LDKCResult_CVec_CVec_u8ZZNoneZ*)untag_ptr(o);
        jboolean ret_conv = CResult_CVec_CVec_u8ZZNoneZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1CVec_1u8ZZNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_CVec_CVec_u8ZZNoneZ _res_conv = *(LDKCResult_CVec_CVec_u8ZZNoneZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_CVec_CVec_u8ZZNoneZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_CVec_CVec_u8ZZNoneZ_clone_ptr(LDKCResult_CVec_CVec_u8ZZNoneZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_CVec_CVec_u8ZZNoneZ_clone_ptr(LDKCResult_CVec_CVec_u8ZZNoneZ *NONNULL_PTR arg) {
        LDKCResult_CVec_CVec_u8ZZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_CVec_u8ZZNoneZ), "LDKCResult_CVec_CVec_u8ZZNoneZ");
        *ret_conv = CResult_CVec_CVec_u8ZZNoneZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1CVec_1u8ZZNoneZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_CVec_CVec_u8ZZNoneZ* arg_conv = (LDKCResult_CVec_CVec_u8ZZNoneZ*)(arg & ~1);
+       LDKCResult_CVec_CVec_u8ZZNoneZ* arg_conv = (LDKCResult_CVec_CVec_u8ZZNoneZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_CVec_CVec_u8ZZNoneZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1CVec_1u8ZZNoneZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_CVec_CVec_u8ZZNoneZ* orig_conv = (LDKCResult_CVec_CVec_u8ZZNoneZ*)(orig & ~1);
+       LDKCResult_CVec_CVec_u8ZZNoneZ* orig_conv = (LDKCResult_CVec_CVec_u8ZZNoneZ*)untag_ptr(orig);
        LDKCResult_CVec_CVec_u8ZZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_CVec_u8ZZNoneZ), "LDKCResult_CVec_CVec_u8ZZNoneZ");
        *ret_conv = CResult_CVec_CVec_u8ZZNoneZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InMemorySignerDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKInMemorySigner o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = InMemorySigner_clone(&o_conv);
        LDKCResult_InMemorySignerDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InMemorySignerDecodeErrorZ), "LDKCResult_InMemorySignerDecodeErrorZ");
        *ret_conv = CResult_InMemorySignerDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InMemorySignerDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_InMemorySignerDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InMemorySignerDecodeErrorZ), "LDKCResult_InMemorySignerDecodeErrorZ");
        *ret_conv = CResult_InMemorySignerDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1InMemorySignerDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_InMemorySignerDecodeErrorZ* o_conv = (LDKCResult_InMemorySignerDecodeErrorZ*)(o & ~1);
+       LDKCResult_InMemorySignerDecodeErrorZ* o_conv = (LDKCResult_InMemorySignerDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_InMemorySignerDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1InMemorySignerDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_InMemorySignerDecodeErrorZ _res_conv = *(LDKCResult_InMemorySignerDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_InMemorySignerDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_InMemorySignerDecodeErrorZ_clone_ptr(LDKCResult_InMemorySignerDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_InMemorySignerDecodeErrorZ_clone_ptr(LDKCResult_InMemorySignerDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_InMemorySignerDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InMemorySignerDecodeErrorZ), "LDKCResult_InMemorySignerDecodeErrorZ");
        *ret_conv = CResult_InMemorySignerDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InMemorySignerDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_InMemorySignerDecodeErrorZ* arg_conv = (LDKCResult_InMemorySignerDecodeErrorZ*)(arg & ~1);
+       LDKCResult_InMemorySignerDecodeErrorZ* arg_conv = (LDKCResult_InMemorySignerDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_InMemorySignerDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InMemorySignerDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_InMemorySignerDecodeErrorZ* orig_conv = (LDKCResult_InMemorySignerDecodeErrorZ*)(orig & ~1);
+       LDKCResult_InMemorySignerDecodeErrorZ* orig_conv = (LDKCResult_InMemorySignerDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_InMemorySignerDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InMemorySignerDecodeErrorZ), "LDKCResult_InMemorySignerDecodeErrorZ");
        *ret_conv = CResult_InMemorySignerDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1TxOutZ_1free(JNIEnv *env, jclass clz, int64_tArray _res) {
@@ -19248,10 +17956,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1TxOutZ_1free(JNIEnv *env
        int64_t* _res_vals = (*env)->GetLongArrayElements (env, _res, NULL);
        for (size_t h = 0; h < _res_constr.datalen; h++) {
                int64_t _res_conv_7 = _res_vals[h];
-               void* _res_conv_7_ptr = (void*)(((uintptr_t)_res_conv_7) & ~1);
+               void* _res_conv_7_ptr = untag_ptr(_res_conv_7);
                CHECK_ACCESS(_res_conv_7_ptr);
                LDKTxOut _res_conv_7_conv = *(LDKTxOut*)(_res_conv_7_ptr);
-               FREE((void*)_res_conv_7);
+               FREE(untag_ptr(_res_conv_7));
                _res_constr.data[h] = _res_conv_7_conv;
        }
        (*env)->ReleaseLongArrayElements(env, _res, _res_vals, 0);
@@ -19266,64 +17974,64 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TransactionNoneZ_1
        o_ref.data_is_owned = true;
        LDKCResult_TransactionNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_TransactionNoneZ), "LDKCResult_TransactionNoneZ");
        *ret_conv = CResult_TransactionNoneZ_ok(o_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TransactionNoneZ_1err(JNIEnv *env, jclass clz) {
        LDKCResult_TransactionNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_TransactionNoneZ), "LDKCResult_TransactionNoneZ");
        *ret_conv = CResult_TransactionNoneZ_err();
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1TransactionNoneZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_TransactionNoneZ* o_conv = (LDKCResult_TransactionNoneZ*)(o & ~1);
+       LDKCResult_TransactionNoneZ* o_conv = (LDKCResult_TransactionNoneZ*)untag_ptr(o);
        jboolean ret_conv = CResult_TransactionNoneZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1TransactionNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_TransactionNoneZ _res_conv = *(LDKCResult_TransactionNoneZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_TransactionNoneZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_TransactionNoneZ_clone_ptr(LDKCResult_TransactionNoneZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_TransactionNoneZ_clone_ptr(LDKCResult_TransactionNoneZ *NONNULL_PTR arg) {
        LDKCResult_TransactionNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_TransactionNoneZ), "LDKCResult_TransactionNoneZ");
        *ret_conv = CResult_TransactionNoneZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TransactionNoneZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_TransactionNoneZ* arg_conv = (LDKCResult_TransactionNoneZ*)(arg & ~1);
+       LDKCResult_TransactionNoneZ* arg_conv = (LDKCResult_TransactionNoneZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_TransactionNoneZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TransactionNoneZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_TransactionNoneZ* orig_conv = (LDKCResult_TransactionNoneZ*)(orig & ~1);
+       LDKCResult_TransactionNoneZ* orig_conv = (LDKCResult_TransactionNoneZ*)untag_ptr(orig);
        LDKCResult_TransactionNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_TransactionNoneZ), "LDKCResult_TransactionNoneZ");
        *ret_conv = CResult_TransactionNoneZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
-static inline uintptr_t C2Tuple_BlockHashChannelMonitorZ_clone_ptr(LDKC2Tuple_BlockHashChannelMonitorZ *NONNULL_PTR arg) {
+static inline uint64_t C2Tuple_BlockHashChannelMonitorZ_clone_ptr(LDKC2Tuple_BlockHashChannelMonitorZ *NONNULL_PTR arg) {
        LDKC2Tuple_BlockHashChannelMonitorZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_BlockHashChannelMonitorZ), "LDKC2Tuple_BlockHashChannelMonitorZ");
        *ret_conv = C2Tuple_BlockHashChannelMonitorZ_clone(arg);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1BlockHashChannelMonitorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKC2Tuple_BlockHashChannelMonitorZ* arg_conv = (LDKC2Tuple_BlockHashChannelMonitorZ*)(arg & ~1);
+       LDKC2Tuple_BlockHashChannelMonitorZ* arg_conv = (LDKC2Tuple_BlockHashChannelMonitorZ*)untag_ptr(arg);
        int64_t ret_conv = C2Tuple_BlockHashChannelMonitorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1BlockHashChannelMonitorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKC2Tuple_BlockHashChannelMonitorZ* orig_conv = (LDKC2Tuple_BlockHashChannelMonitorZ*)(orig & ~1);
+       LDKC2Tuple_BlockHashChannelMonitorZ* orig_conv = (LDKC2Tuple_BlockHashChannelMonitorZ*)untag_ptr(orig);
        LDKC2Tuple_BlockHashChannelMonitorZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_BlockHashChannelMonitorZ), "LDKC2Tuple_BlockHashChannelMonitorZ");
        *ret_conv = C2Tuple_BlockHashChannelMonitorZ_clone(orig_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1BlockHashChannelMonitorZ_1new(JNIEnv *env, jclass clz, int8_tArray a, int64_t b) {
@@ -19331,21 +18039,21 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1BlockHashChannelMo
        CHECK((*env)->GetArrayLength(env, a) == 32);
        (*env)->GetByteArrayRegion(env, a, 0, 32, a_ref.data);
        LDKChannelMonitor b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = (b & 1) || (b == 0);
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
        b_conv = ChannelMonitor_clone(&b_conv);
        LDKC2Tuple_BlockHashChannelMonitorZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_BlockHashChannelMonitorZ), "LDKC2Tuple_BlockHashChannelMonitorZ");
        *ret_conv = C2Tuple_BlockHashChannelMonitorZ_new(a_ref, b_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C2Tuple_1BlockHashChannelMonitorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_BlockHashChannelMonitorZ _res_conv = *(LDKC2Tuple_BlockHashChannelMonitorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        C2Tuple_BlockHashChannelMonitorZ_free(_res_conv);
 }
 
@@ -19359,10 +18067,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1C2Tuple_1BlockHashChanne
        int64_t* _res_vals = (*env)->GetLongArrayElements (env, _res, NULL);
        for (size_t j = 0; j < _res_constr.datalen; j++) {
                int64_t _res_conv_35 = _res_vals[j];
-               void* _res_conv_35_ptr = (void*)(((uintptr_t)_res_conv_35) & ~1);
+               void* _res_conv_35_ptr = untag_ptr(_res_conv_35);
                CHECK_ACCESS(_res_conv_35_ptr);
                LDKC2Tuple_BlockHashChannelMonitorZ _res_conv_35_conv = *(LDKC2Tuple_BlockHashChannelMonitorZ*)(_res_conv_35_ptr);
-               FREE((void*)_res_conv_35);
+               FREE(untag_ptr(_res_conv_35));
                _res_constr.data[j] = _res_conv_35_conv;
        }
        (*env)->ReleaseLongArrayElements(env, _res, _res_vals, 0);
@@ -19379,148 +18087,148 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1C2Tuple_1Blo
        int64_t* o_vals = (*env)->GetLongArrayElements (env, o, NULL);
        for (size_t j = 0; j < o_constr.datalen; j++) {
                int64_t o_conv_35 = o_vals[j];
-               void* o_conv_35_ptr = (void*)(((uintptr_t)o_conv_35) & ~1);
+               void* o_conv_35_ptr = untag_ptr(o_conv_35);
                CHECK_ACCESS(o_conv_35_ptr);
                LDKC2Tuple_BlockHashChannelMonitorZ o_conv_35_conv = *(LDKC2Tuple_BlockHashChannelMonitorZ*)(o_conv_35_ptr);
-               o_conv_35_conv = C2Tuple_BlockHashChannelMonitorZ_clone((LDKC2Tuple_BlockHashChannelMonitorZ*)(((uintptr_t)o_conv_35) & ~1));
+               o_conv_35_conv = C2Tuple_BlockHashChannelMonitorZ_clone((LDKC2Tuple_BlockHashChannelMonitorZ*)untag_ptr(o_conv_35));
                o_constr.data[j] = o_conv_35_conv;
        }
        (*env)->ReleaseLongArrayElements(env, o, o_vals, 0);
        LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ), "LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ");
        *ret_conv = CResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ_ok(o_constr);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1C2Tuple_1BlockHashChannelMonitorZZErrorZ_1err(JNIEnv *env, jclass clz, jclass e) {
        LDKIOError e_conv = LDKIOError_from_java(env, e);
        LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ), "LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ");
        *ret_conv = CResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1C2Tuple_1BlockHashChannelMonitorZZErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ* o_conv = (LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ*)(o & ~1);
+       LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ* o_conv = (LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1C2Tuple_1BlockHashChannelMonitorZZErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ _res_conv = *(LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ_clone_ptr(LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ_clone_ptr(LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ *NONNULL_PTR arg) {
        LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ), "LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ");
        *ret_conv = CResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1C2Tuple_1BlockHashChannelMonitorZZErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ* arg_conv = (LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ*)(arg & ~1);
+       LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ* arg_conv = (LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1C2Tuple_1BlockHashChannelMonitorZZErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ* orig_conv = (LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ*)(orig & ~1);
+       LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ* orig_conv = (LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ*)untag_ptr(orig);
        LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ), "LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ");
        *ret_conv = CResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1u16Z_1some(JNIEnv *env, jclass clz, int16_t o) {
        LDKCOption_u16Z *ret_copy = MALLOC(sizeof(LDKCOption_u16Z), "LDKCOption_u16Z");
        *ret_copy = COption_u16Z_some(o);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1u16Z_1none(JNIEnv *env, jclass clz) {
        LDKCOption_u16Z *ret_copy = MALLOC(sizeof(LDKCOption_u16Z), "LDKCOption_u16Z");
        *ret_copy = COption_u16Z_none();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1u16Z_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_u16Z _res_conv = *(LDKCOption_u16Z*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        COption_u16Z_free(_res_conv);
 }
 
-static inline uintptr_t COption_u16Z_clone_ptr(LDKCOption_u16Z *NONNULL_PTR arg) {
+static inline uint64_t COption_u16Z_clone_ptr(LDKCOption_u16Z *NONNULL_PTR arg) {
        LDKCOption_u16Z *ret_copy = MALLOC(sizeof(LDKCOption_u16Z), "LDKCOption_u16Z");
        *ret_copy = COption_u16Z_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1u16Z_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCOption_u16Z* arg_conv = (LDKCOption_u16Z*)arg;
+       LDKCOption_u16Z* arg_conv = (LDKCOption_u16Z*)untag_ptr(arg);
        int64_t ret_conv = COption_u16Z_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1u16Z_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCOption_u16Z* orig_conv = (LDKCOption_u16Z*)orig;
+       LDKCOption_u16Z* orig_conv = (LDKCOption_u16Z*)untag_ptr(orig);
        LDKCOption_u16Z *ret_copy = MALLOC(sizeof(LDKCOption_u16Z), "LDKCOption_u16Z");
        *ret_copy = COption_u16Z_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneAPIErrorZ_1ok(JNIEnv *env, jclass clz) {
        LDKCResult_NoneAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
        *ret_conv = CResult_NoneAPIErrorZ_ok();
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneAPIErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
-       void* e_ptr = (void*)(((uintptr_t)e) & ~1);
+       void* e_ptr = untag_ptr(e);
        CHECK_ACCESS(e_ptr);
        LDKAPIError e_conv = *(LDKAPIError*)(e_ptr);
-       e_conv = APIError_clone((LDKAPIError*)(((uintptr_t)e) & ~1));
+       e_conv = APIError_clone((LDKAPIError*)untag_ptr(e));
        LDKCResult_NoneAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
        *ret_conv = CResult_NoneAPIErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1NoneAPIErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_NoneAPIErrorZ* o_conv = (LDKCResult_NoneAPIErrorZ*)(o & ~1);
+       LDKCResult_NoneAPIErrorZ* o_conv = (LDKCResult_NoneAPIErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_NoneAPIErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NoneAPIErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NoneAPIErrorZ _res_conv = *(LDKCResult_NoneAPIErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_NoneAPIErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_NoneAPIErrorZ_clone_ptr(LDKCResult_NoneAPIErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_NoneAPIErrorZ_clone_ptr(LDKCResult_NoneAPIErrorZ *NONNULL_PTR arg) {
        LDKCResult_NoneAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
        *ret_conv = CResult_NoneAPIErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneAPIErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_NoneAPIErrorZ* arg_conv = (LDKCResult_NoneAPIErrorZ*)(arg & ~1);
+       LDKCResult_NoneAPIErrorZ* arg_conv = (LDKCResult_NoneAPIErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_NoneAPIErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneAPIErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_NoneAPIErrorZ* orig_conv = (LDKCResult_NoneAPIErrorZ*)(orig & ~1);
+       LDKCResult_NoneAPIErrorZ* orig_conv = (LDKCResult_NoneAPIErrorZ*)untag_ptr(orig);
        LDKCResult_NoneAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
        *ret_conv = CResult_NoneAPIErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1CResult_1NoneAPIErrorZZ_1free(JNIEnv *env, jclass clz, int64_tArray _res) {
@@ -19533,10 +18241,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1CResult_1NoneAPIErrorZZ_
        int64_t* _res_vals = (*env)->GetLongArrayElements (env, _res, NULL);
        for (size_t w = 0; w < _res_constr.datalen; w++) {
                int64_t _res_conv_22 = _res_vals[w];
-               void* _res_conv_22_ptr = (void*)(((uintptr_t)_res_conv_22) & ~1);
+               void* _res_conv_22_ptr = untag_ptr(_res_conv_22);
                CHECK_ACCESS(_res_conv_22_ptr);
                LDKCResult_NoneAPIErrorZ _res_conv_22_conv = *(LDKCResult_NoneAPIErrorZ*)(_res_conv_22_ptr);
-               FREE((void*)_res_conv_22);
+               FREE(untag_ptr(_res_conv_22));
                _res_constr.data[w] = _res_conv_22_conv;
        }
        (*env)->ReleaseLongArrayElements(env, _res, _res_vals, 0);
@@ -19553,10 +18261,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1APIErrorZ_1free(JNIEnv *
        int64_t* _res_vals = (*env)->GetLongArrayElements (env, _res, NULL);
        for (size_t k = 0; k < _res_constr.datalen; k++) {
                int64_t _res_conv_10 = _res_vals[k];
-               void* _res_conv_10_ptr = (void*)(((uintptr_t)_res_conv_10) & ~1);
+               void* _res_conv_10_ptr = untag_ptr(_res_conv_10);
                CHECK_ACCESS(_res_conv_10_ptr);
                LDKAPIError _res_conv_10_conv = *(LDKAPIError*)(_res_conv_10_ptr);
-               FREE((void*)_res_conv_10);
+               FREE(untag_ptr(_res_conv_10));
                _res_constr.data[k] = _res_conv_10_conv;
        }
        (*env)->ReleaseLongArrayElements(env, _res, _res_vals, 0);
@@ -19569,50 +18277,50 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1_1u832APIErrorZ_1o
        (*env)->GetByteArrayRegion(env, o, 0, 32, o_ref.data);
        LDKCResult__u832APIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult__u832APIErrorZ), "LDKCResult__u832APIErrorZ");
        *ret_conv = CResult__u832APIErrorZ_ok(o_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1_1u832APIErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
-       void* e_ptr = (void*)(((uintptr_t)e) & ~1);
+       void* e_ptr = untag_ptr(e);
        CHECK_ACCESS(e_ptr);
        LDKAPIError e_conv = *(LDKAPIError*)(e_ptr);
-       e_conv = APIError_clone((LDKAPIError*)(((uintptr_t)e) & ~1));
+       e_conv = APIError_clone((LDKAPIError*)untag_ptr(e));
        LDKCResult__u832APIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult__u832APIErrorZ), "LDKCResult__u832APIErrorZ");
        *ret_conv = CResult__u832APIErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1_1u832APIErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult__u832APIErrorZ* o_conv = (LDKCResult__u832APIErrorZ*)(o & ~1);
+       LDKCResult__u832APIErrorZ* o_conv = (LDKCResult__u832APIErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult__u832APIErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1_1u832APIErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult__u832APIErrorZ _res_conv = *(LDKCResult__u832APIErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult__u832APIErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult__u832APIErrorZ_clone_ptr(LDKCResult__u832APIErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult__u832APIErrorZ_clone_ptr(LDKCResult__u832APIErrorZ *NONNULL_PTR arg) {
        LDKCResult__u832APIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult__u832APIErrorZ), "LDKCResult__u832APIErrorZ");
        *ret_conv = CResult__u832APIErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1_1u832APIErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult__u832APIErrorZ* arg_conv = (LDKCResult__u832APIErrorZ*)(arg & ~1);
+       LDKCResult__u832APIErrorZ* arg_conv = (LDKCResult__u832APIErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult__u832APIErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1_1u832APIErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult__u832APIErrorZ* orig_conv = (LDKCResult__u832APIErrorZ*)(orig & ~1);
+       LDKCResult__u832APIErrorZ* orig_conv = (LDKCResult__u832APIErrorZ*)untag_ptr(orig);
        LDKCResult__u832APIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult__u832APIErrorZ), "LDKCResult__u832APIErrorZ");
        *ret_conv = CResult__u832APIErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentIdPaymentSendFailureZ_1ok(JNIEnv *env, jclass clz, int8_tArray o) {
@@ -19621,117 +18329,117 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentIdPaymentSe
        (*env)->GetByteArrayRegion(env, o, 0, 32, o_ref.data);
        LDKCResult_PaymentIdPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentIdPaymentSendFailureZ), "LDKCResult_PaymentIdPaymentSendFailureZ");
        *ret_conv = CResult_PaymentIdPaymentSendFailureZ_ok(o_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentIdPaymentSendFailureZ_1err(JNIEnv *env, jclass clz, int64_t e) {
-       void* e_ptr = (void*)(((uintptr_t)e) & ~1);
+       void* e_ptr = untag_ptr(e);
        CHECK_ACCESS(e_ptr);
        LDKPaymentSendFailure e_conv = *(LDKPaymentSendFailure*)(e_ptr);
-       e_conv = PaymentSendFailure_clone((LDKPaymentSendFailure*)(((uintptr_t)e) & ~1));
+       e_conv = PaymentSendFailure_clone((LDKPaymentSendFailure*)untag_ptr(e));
        LDKCResult_PaymentIdPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentIdPaymentSendFailureZ), "LDKCResult_PaymentIdPaymentSendFailureZ");
        *ret_conv = CResult_PaymentIdPaymentSendFailureZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentIdPaymentSendFailureZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_PaymentIdPaymentSendFailureZ* o_conv = (LDKCResult_PaymentIdPaymentSendFailureZ*)(o & ~1);
+       LDKCResult_PaymentIdPaymentSendFailureZ* o_conv = (LDKCResult_PaymentIdPaymentSendFailureZ*)untag_ptr(o);
        jboolean ret_conv = CResult_PaymentIdPaymentSendFailureZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentIdPaymentSendFailureZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_PaymentIdPaymentSendFailureZ _res_conv = *(LDKCResult_PaymentIdPaymentSendFailureZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_PaymentIdPaymentSendFailureZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_PaymentIdPaymentSendFailureZ_clone_ptr(LDKCResult_PaymentIdPaymentSendFailureZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_PaymentIdPaymentSendFailureZ_clone_ptr(LDKCResult_PaymentIdPaymentSendFailureZ *NONNULL_PTR arg) {
        LDKCResult_PaymentIdPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentIdPaymentSendFailureZ), "LDKCResult_PaymentIdPaymentSendFailureZ");
        *ret_conv = CResult_PaymentIdPaymentSendFailureZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentIdPaymentSendFailureZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_PaymentIdPaymentSendFailureZ* arg_conv = (LDKCResult_PaymentIdPaymentSendFailureZ*)(arg & ~1);
+       LDKCResult_PaymentIdPaymentSendFailureZ* arg_conv = (LDKCResult_PaymentIdPaymentSendFailureZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_PaymentIdPaymentSendFailureZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentIdPaymentSendFailureZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_PaymentIdPaymentSendFailureZ* orig_conv = (LDKCResult_PaymentIdPaymentSendFailureZ*)(orig & ~1);
+       LDKCResult_PaymentIdPaymentSendFailureZ* orig_conv = (LDKCResult_PaymentIdPaymentSendFailureZ*)untag_ptr(orig);
        LDKCResult_PaymentIdPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentIdPaymentSendFailureZ), "LDKCResult_PaymentIdPaymentSendFailureZ");
        *ret_conv = CResult_PaymentIdPaymentSendFailureZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NonePaymentSendFailureZ_1ok(JNIEnv *env, jclass clz) {
        LDKCResult_NonePaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePaymentSendFailureZ), "LDKCResult_NonePaymentSendFailureZ");
        *ret_conv = CResult_NonePaymentSendFailureZ_ok();
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NonePaymentSendFailureZ_1err(JNIEnv *env, jclass clz, int64_t e) {
-       void* e_ptr = (void*)(((uintptr_t)e) & ~1);
+       void* e_ptr = untag_ptr(e);
        CHECK_ACCESS(e_ptr);
        LDKPaymentSendFailure e_conv = *(LDKPaymentSendFailure*)(e_ptr);
-       e_conv = PaymentSendFailure_clone((LDKPaymentSendFailure*)(((uintptr_t)e) & ~1));
+       e_conv = PaymentSendFailure_clone((LDKPaymentSendFailure*)untag_ptr(e));
        LDKCResult_NonePaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePaymentSendFailureZ), "LDKCResult_NonePaymentSendFailureZ");
        *ret_conv = CResult_NonePaymentSendFailureZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1NonePaymentSendFailureZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_NonePaymentSendFailureZ* o_conv = (LDKCResult_NonePaymentSendFailureZ*)(o & ~1);
+       LDKCResult_NonePaymentSendFailureZ* o_conv = (LDKCResult_NonePaymentSendFailureZ*)untag_ptr(o);
        jboolean ret_conv = CResult_NonePaymentSendFailureZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NonePaymentSendFailureZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NonePaymentSendFailureZ _res_conv = *(LDKCResult_NonePaymentSendFailureZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_NonePaymentSendFailureZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_NonePaymentSendFailureZ_clone_ptr(LDKCResult_NonePaymentSendFailureZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_NonePaymentSendFailureZ_clone_ptr(LDKCResult_NonePaymentSendFailureZ *NONNULL_PTR arg) {
        LDKCResult_NonePaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePaymentSendFailureZ), "LDKCResult_NonePaymentSendFailureZ");
        *ret_conv = CResult_NonePaymentSendFailureZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NonePaymentSendFailureZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_NonePaymentSendFailureZ* arg_conv = (LDKCResult_NonePaymentSendFailureZ*)(arg & ~1);
+       LDKCResult_NonePaymentSendFailureZ* arg_conv = (LDKCResult_NonePaymentSendFailureZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_NonePaymentSendFailureZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NonePaymentSendFailureZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_NonePaymentSendFailureZ* orig_conv = (LDKCResult_NonePaymentSendFailureZ*)(orig & ~1);
+       LDKCResult_NonePaymentSendFailureZ* orig_conv = (LDKCResult_NonePaymentSendFailureZ*)untag_ptr(orig);
        LDKCResult_NonePaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePaymentSendFailureZ), "LDKCResult_NonePaymentSendFailureZ");
        *ret_conv = CResult_NonePaymentSendFailureZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
-static inline uintptr_t C2Tuple_PaymentHashPaymentIdZ_clone_ptr(LDKC2Tuple_PaymentHashPaymentIdZ *NONNULL_PTR arg) {
+static inline uint64_t C2Tuple_PaymentHashPaymentIdZ_clone_ptr(LDKC2Tuple_PaymentHashPaymentIdZ *NONNULL_PTR arg) {
        LDKC2Tuple_PaymentHashPaymentIdZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PaymentHashPaymentIdZ), "LDKC2Tuple_PaymentHashPaymentIdZ");
        *ret_conv = C2Tuple_PaymentHashPaymentIdZ_clone(arg);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PaymentHashPaymentIdZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKC2Tuple_PaymentHashPaymentIdZ* arg_conv = (LDKC2Tuple_PaymentHashPaymentIdZ*)(arg & ~1);
+       LDKC2Tuple_PaymentHashPaymentIdZ* arg_conv = (LDKC2Tuple_PaymentHashPaymentIdZ*)untag_ptr(arg);
        int64_t ret_conv = C2Tuple_PaymentHashPaymentIdZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PaymentHashPaymentIdZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKC2Tuple_PaymentHashPaymentIdZ* orig_conv = (LDKC2Tuple_PaymentHashPaymentIdZ*)(orig & ~1);
+       LDKC2Tuple_PaymentHashPaymentIdZ* orig_conv = (LDKC2Tuple_PaymentHashPaymentIdZ*)untag_ptr(orig);
        LDKC2Tuple_PaymentHashPaymentIdZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PaymentHashPaymentIdZ), "LDKC2Tuple_PaymentHashPaymentIdZ");
        *ret_conv = C2Tuple_PaymentHashPaymentIdZ_clone(orig_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PaymentHashPaymentIdZ_1new(JNIEnv *env, jclass clz, int8_tArray a, int8_tArray b) {
@@ -19743,69 +18451,69 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PaymentHashPayment
        (*env)->GetByteArrayRegion(env, b, 0, 32, b_ref.data);
        LDKC2Tuple_PaymentHashPaymentIdZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PaymentHashPaymentIdZ), "LDKC2Tuple_PaymentHashPaymentIdZ");
        *ret_conv = C2Tuple_PaymentHashPaymentIdZ_new(a_ref, b_ref);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PaymentHashPaymentIdZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_PaymentHashPaymentIdZ _res_conv = *(LDKC2Tuple_PaymentHashPaymentIdZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        C2Tuple_PaymentHashPaymentIdZ_free(_res_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentIdZPaymentSendFailureZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKC2Tuple_PaymentHashPaymentIdZ o_conv = *(LDKC2Tuple_PaymentHashPaymentIdZ*)(o_ptr);
-       o_conv = C2Tuple_PaymentHashPaymentIdZ_clone((LDKC2Tuple_PaymentHashPaymentIdZ*)(((uintptr_t)o) & ~1));
+       o_conv = C2Tuple_PaymentHashPaymentIdZ_clone((LDKC2Tuple_PaymentHashPaymentIdZ*)untag_ptr(o));
        LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ), "LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentIdZPaymentSendFailureZ_1err(JNIEnv *env, jclass clz, int64_t e) {
-       void* e_ptr = (void*)(((uintptr_t)e) & ~1);
+       void* e_ptr = untag_ptr(e);
        CHECK_ACCESS(e_ptr);
        LDKPaymentSendFailure e_conv = *(LDKPaymentSendFailure*)(e_ptr);
-       e_conv = PaymentSendFailure_clone((LDKPaymentSendFailure*)(((uintptr_t)e) & ~1));
+       e_conv = PaymentSendFailure_clone((LDKPaymentSendFailure*)untag_ptr(e));
        LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ), "LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentIdZPaymentSendFailureZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* o_conv = (LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ*)(o & ~1);
+       LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* o_conv = (LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ*)untag_ptr(o);
        jboolean ret_conv = CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentIdZPaymentSendFailureZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ _res_conv = *(LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_clone_ptr(LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_clone_ptr(LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ *NONNULL_PTR arg) {
        LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ), "LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentIdZPaymentSendFailureZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* arg_conv = (LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ*)(arg & ~1);
+       LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* arg_conv = (LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentIdZPaymentSendFailureZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* orig_conv = (LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ*)(orig & ~1);
+       LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* orig_conv = (LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ*)untag_ptr(orig);
        LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ), "LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1ThirtyTwoBytesZ_1free(JNIEnv *env, jclass clz, jobjectArray _res) {
@@ -19825,22 +18533,22 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1ThirtyTwoBytesZ_1free(JN
        CVec_ThirtyTwoBytesZ_free(_res_constr);
 }
 
-static inline uintptr_t C2Tuple_PaymentHashPaymentSecretZ_clone_ptr(LDKC2Tuple_PaymentHashPaymentSecretZ *NONNULL_PTR arg) {
+static inline uint64_t C2Tuple_PaymentHashPaymentSecretZ_clone_ptr(LDKC2Tuple_PaymentHashPaymentSecretZ *NONNULL_PTR arg) {
        LDKC2Tuple_PaymentHashPaymentSecretZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PaymentHashPaymentSecretZ), "LDKC2Tuple_PaymentHashPaymentSecretZ");
        *ret_conv = C2Tuple_PaymentHashPaymentSecretZ_clone(arg);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PaymentHashPaymentSecretZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKC2Tuple_PaymentHashPaymentSecretZ* arg_conv = (LDKC2Tuple_PaymentHashPaymentSecretZ*)(arg & ~1);
+       LDKC2Tuple_PaymentHashPaymentSecretZ* arg_conv = (LDKC2Tuple_PaymentHashPaymentSecretZ*)untag_ptr(arg);
        int64_t ret_conv = C2Tuple_PaymentHashPaymentSecretZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PaymentHashPaymentSecretZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKC2Tuple_PaymentHashPaymentSecretZ* orig_conv = (LDKC2Tuple_PaymentHashPaymentSecretZ*)(orig & ~1);
+       LDKC2Tuple_PaymentHashPaymentSecretZ* orig_conv = (LDKC2Tuple_PaymentHashPaymentSecretZ*)untag_ptr(orig);
        LDKC2Tuple_PaymentHashPaymentSecretZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PaymentHashPaymentSecretZ), "LDKC2Tuple_PaymentHashPaymentSecretZ");
        *ret_conv = C2Tuple_PaymentHashPaymentSecretZ_clone(orig_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PaymentHashPaymentSecretZ_1new(JNIEnv *env, jclass clz, int8_tArray a, int8_tArray b) {
@@ -19852,118 +18560,118 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PaymentHashPayment
        (*env)->GetByteArrayRegion(env, b, 0, 32, b_ref.data);
        LDKC2Tuple_PaymentHashPaymentSecretZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PaymentHashPaymentSecretZ), "LDKC2Tuple_PaymentHashPaymentSecretZ");
        *ret_conv = C2Tuple_PaymentHashPaymentSecretZ_new(a_ref, b_ref);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PaymentHashPaymentSecretZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_PaymentHashPaymentSecretZ _res_conv = *(LDKC2Tuple_PaymentHashPaymentSecretZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        C2Tuple_PaymentHashPaymentSecretZ_free(_res_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentSecretZNoneZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKC2Tuple_PaymentHashPaymentSecretZ o_conv = *(LDKC2Tuple_PaymentHashPaymentSecretZ*)(o_ptr);
-       o_conv = C2Tuple_PaymentHashPaymentSecretZ_clone((LDKC2Tuple_PaymentHashPaymentSecretZ*)(((uintptr_t)o) & ~1));
+       o_conv = C2Tuple_PaymentHashPaymentSecretZ_clone((LDKC2Tuple_PaymentHashPaymentSecretZ*)untag_ptr(o));
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ), "LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentSecretZNoneZ_1err(JNIEnv *env, jclass clz) {
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ), "LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_err();
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentSecretZNoneZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ* o_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ*)(o & ~1);
+       LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ* o_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ*)untag_ptr(o);
        jboolean ret_conv = CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentSecretZNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ _res_conv = *(LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_clone_ptr(LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_clone_ptr(LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ *NONNULL_PTR arg) {
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ), "LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentSecretZNoneZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ* arg_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ*)(arg & ~1);
+       LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ* arg_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentSecretZNoneZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ* orig_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ*)(orig & ~1);
+       LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ* orig_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ*)untag_ptr(orig);
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ), "LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentSecretZNoneZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentSecretZAPIErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKC2Tuple_PaymentHashPaymentSecretZ o_conv = *(LDKC2Tuple_PaymentHashPaymentSecretZ*)(o_ptr);
-       o_conv = C2Tuple_PaymentHashPaymentSecretZ_clone((LDKC2Tuple_PaymentHashPaymentSecretZ*)(((uintptr_t)o) & ~1));
+       o_conv = C2Tuple_PaymentHashPaymentSecretZ_clone((LDKC2Tuple_PaymentHashPaymentSecretZ*)untag_ptr(o));
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ), "LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentSecretZAPIErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
-       void* e_ptr = (void*)(((uintptr_t)e) & ~1);
+       void* e_ptr = untag_ptr(e);
        CHECK_ACCESS(e_ptr);
        LDKAPIError e_conv = *(LDKAPIError*)(e_ptr);
-       e_conv = APIError_clone((LDKAPIError*)(((uintptr_t)e) & ~1));
+       e_conv = APIError_clone((LDKAPIError*)untag_ptr(e));
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ), "LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentSecretZAPIErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ* o_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ*)(o & ~1);
+       LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ* o_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentSecretZAPIErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ _res_conv = *(LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_clone_ptr(LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_clone_ptr(LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ *NONNULL_PTR arg) {
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ), "LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentSecretZAPIErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ* arg_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ*)(arg & ~1);
+       LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ* arg_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentSecretZAPIErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ* orig_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ*)(orig & ~1);
+       LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ* orig_conv = (LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ*)untag_ptr(orig);
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ), "LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentSecretNoneZ_1ok(JNIEnv *env, jclass clz, int8_tArray o) {
@@ -19972,46 +18680,46 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentSecretNoneZ
        (*env)->GetByteArrayRegion(env, o, 0, 32, o_ref.data);
        LDKCResult_PaymentSecretNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentSecretNoneZ), "LDKCResult_PaymentSecretNoneZ");
        *ret_conv = CResult_PaymentSecretNoneZ_ok(o_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentSecretNoneZ_1err(JNIEnv *env, jclass clz) {
        LDKCResult_PaymentSecretNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentSecretNoneZ), "LDKCResult_PaymentSecretNoneZ");
        *ret_conv = CResult_PaymentSecretNoneZ_err();
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentSecretNoneZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_PaymentSecretNoneZ* o_conv = (LDKCResult_PaymentSecretNoneZ*)(o & ~1);
+       LDKCResult_PaymentSecretNoneZ* o_conv = (LDKCResult_PaymentSecretNoneZ*)untag_ptr(o);
        jboolean ret_conv = CResult_PaymentSecretNoneZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentSecretNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_PaymentSecretNoneZ _res_conv = *(LDKCResult_PaymentSecretNoneZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_PaymentSecretNoneZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_PaymentSecretNoneZ_clone_ptr(LDKCResult_PaymentSecretNoneZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_PaymentSecretNoneZ_clone_ptr(LDKCResult_PaymentSecretNoneZ *NONNULL_PTR arg) {
        LDKCResult_PaymentSecretNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentSecretNoneZ), "LDKCResult_PaymentSecretNoneZ");
        *ret_conv = CResult_PaymentSecretNoneZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentSecretNoneZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_PaymentSecretNoneZ* arg_conv = (LDKCResult_PaymentSecretNoneZ*)(arg & ~1);
+       LDKCResult_PaymentSecretNoneZ* arg_conv = (LDKCResult_PaymentSecretNoneZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_PaymentSecretNoneZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentSecretNoneZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_PaymentSecretNoneZ* orig_conv = (LDKCResult_PaymentSecretNoneZ*)(orig & ~1);
+       LDKCResult_PaymentSecretNoneZ* orig_conv = (LDKCResult_PaymentSecretNoneZ*)untag_ptr(orig);
        LDKCResult_PaymentSecretNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentSecretNoneZ), "LDKCResult_PaymentSecretNoneZ");
        *ret_conv = CResult_PaymentSecretNoneZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentSecretAPIErrorZ_1ok(JNIEnv *env, jclass clz, int8_tArray o) {
@@ -20020,50 +18728,50 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentSecretAPIEr
        (*env)->GetByteArrayRegion(env, o, 0, 32, o_ref.data);
        LDKCResult_PaymentSecretAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentSecretAPIErrorZ), "LDKCResult_PaymentSecretAPIErrorZ");
        *ret_conv = CResult_PaymentSecretAPIErrorZ_ok(o_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentSecretAPIErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
-       void* e_ptr = (void*)(((uintptr_t)e) & ~1);
+       void* e_ptr = untag_ptr(e);
        CHECK_ACCESS(e_ptr);
        LDKAPIError e_conv = *(LDKAPIError*)(e_ptr);
-       e_conv = APIError_clone((LDKAPIError*)(((uintptr_t)e) & ~1));
+       e_conv = APIError_clone((LDKAPIError*)untag_ptr(e));
        LDKCResult_PaymentSecretAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentSecretAPIErrorZ), "LDKCResult_PaymentSecretAPIErrorZ");
        *ret_conv = CResult_PaymentSecretAPIErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentSecretAPIErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_PaymentSecretAPIErrorZ* o_conv = (LDKCResult_PaymentSecretAPIErrorZ*)(o & ~1);
+       LDKCResult_PaymentSecretAPIErrorZ* o_conv = (LDKCResult_PaymentSecretAPIErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_PaymentSecretAPIErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentSecretAPIErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_PaymentSecretAPIErrorZ _res_conv = *(LDKCResult_PaymentSecretAPIErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_PaymentSecretAPIErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_PaymentSecretAPIErrorZ_clone_ptr(LDKCResult_PaymentSecretAPIErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_PaymentSecretAPIErrorZ_clone_ptr(LDKCResult_PaymentSecretAPIErrorZ *NONNULL_PTR arg) {
        LDKCResult_PaymentSecretAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentSecretAPIErrorZ), "LDKCResult_PaymentSecretAPIErrorZ");
        *ret_conv = CResult_PaymentSecretAPIErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentSecretAPIErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_PaymentSecretAPIErrorZ* arg_conv = (LDKCResult_PaymentSecretAPIErrorZ*)(arg & ~1);
+       LDKCResult_PaymentSecretAPIErrorZ* arg_conv = (LDKCResult_PaymentSecretAPIErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_PaymentSecretAPIErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentSecretAPIErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_PaymentSecretAPIErrorZ* orig_conv = (LDKCResult_PaymentSecretAPIErrorZ*)(orig & ~1);
+       LDKCResult_PaymentSecretAPIErrorZ* orig_conv = (LDKCResult_PaymentSecretAPIErrorZ*)untag_ptr(orig);
        LDKCResult_PaymentSecretAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentSecretAPIErrorZ), "LDKCResult_PaymentSecretAPIErrorZ");
        *ret_conv = CResult_PaymentSecretAPIErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentPreimageAPIErrorZ_1ok(JNIEnv *env, jclass clz, int8_tArray o) {
@@ -20072,270 +18780,270 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentPreimageAPI
        (*env)->GetByteArrayRegion(env, o, 0, 32, o_ref.data);
        LDKCResult_PaymentPreimageAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentPreimageAPIErrorZ), "LDKCResult_PaymentPreimageAPIErrorZ");
        *ret_conv = CResult_PaymentPreimageAPIErrorZ_ok(o_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentPreimageAPIErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
-       void* e_ptr = (void*)(((uintptr_t)e) & ~1);
+       void* e_ptr = untag_ptr(e);
        CHECK_ACCESS(e_ptr);
        LDKAPIError e_conv = *(LDKAPIError*)(e_ptr);
-       e_conv = APIError_clone((LDKAPIError*)(((uintptr_t)e) & ~1));
+       e_conv = APIError_clone((LDKAPIError*)untag_ptr(e));
        LDKCResult_PaymentPreimageAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentPreimageAPIErrorZ), "LDKCResult_PaymentPreimageAPIErrorZ");
        *ret_conv = CResult_PaymentPreimageAPIErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentPreimageAPIErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_PaymentPreimageAPIErrorZ* o_conv = (LDKCResult_PaymentPreimageAPIErrorZ*)(o & ~1);
+       LDKCResult_PaymentPreimageAPIErrorZ* o_conv = (LDKCResult_PaymentPreimageAPIErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_PaymentPreimageAPIErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentPreimageAPIErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_PaymentPreimageAPIErrorZ _res_conv = *(LDKCResult_PaymentPreimageAPIErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_PaymentPreimageAPIErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_PaymentPreimageAPIErrorZ_clone_ptr(LDKCResult_PaymentPreimageAPIErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_PaymentPreimageAPIErrorZ_clone_ptr(LDKCResult_PaymentPreimageAPIErrorZ *NONNULL_PTR arg) {
        LDKCResult_PaymentPreimageAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentPreimageAPIErrorZ), "LDKCResult_PaymentPreimageAPIErrorZ");
        *ret_conv = CResult_PaymentPreimageAPIErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentPreimageAPIErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_PaymentPreimageAPIErrorZ* arg_conv = (LDKCResult_PaymentPreimageAPIErrorZ*)(arg & ~1);
+       LDKCResult_PaymentPreimageAPIErrorZ* arg_conv = (LDKCResult_PaymentPreimageAPIErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_PaymentPreimageAPIErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentPreimageAPIErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_PaymentPreimageAPIErrorZ* orig_conv = (LDKCResult_PaymentPreimageAPIErrorZ*)(orig & ~1);
+       LDKCResult_PaymentPreimageAPIErrorZ* orig_conv = (LDKCResult_PaymentPreimageAPIErrorZ*)untag_ptr(orig);
        LDKCResult_PaymentPreimageAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentPreimageAPIErrorZ), "LDKCResult_PaymentPreimageAPIErrorZ");
        *ret_conv = CResult_PaymentPreimageAPIErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyForwardingInfoDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKCounterpartyForwardingInfo o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = CounterpartyForwardingInfo_clone(&o_conv);
        LDKCResult_CounterpartyForwardingInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CounterpartyForwardingInfoDecodeErrorZ), "LDKCResult_CounterpartyForwardingInfoDecodeErrorZ");
        *ret_conv = CResult_CounterpartyForwardingInfoDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyForwardingInfoDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_CounterpartyForwardingInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CounterpartyForwardingInfoDecodeErrorZ), "LDKCResult_CounterpartyForwardingInfoDecodeErrorZ");
        *ret_conv = CResult_CounterpartyForwardingInfoDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyForwardingInfoDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_CounterpartyForwardingInfoDecodeErrorZ* o_conv = (LDKCResult_CounterpartyForwardingInfoDecodeErrorZ*)(o & ~1);
+       LDKCResult_CounterpartyForwardingInfoDecodeErrorZ* o_conv = (LDKCResult_CounterpartyForwardingInfoDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_CounterpartyForwardingInfoDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyForwardingInfoDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_CounterpartyForwardingInfoDecodeErrorZ _res_conv = *(LDKCResult_CounterpartyForwardingInfoDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_CounterpartyForwardingInfoDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_CounterpartyForwardingInfoDecodeErrorZ_clone_ptr(LDKCResult_CounterpartyForwardingInfoDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_CounterpartyForwardingInfoDecodeErrorZ_clone_ptr(LDKCResult_CounterpartyForwardingInfoDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_CounterpartyForwardingInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CounterpartyForwardingInfoDecodeErrorZ), "LDKCResult_CounterpartyForwardingInfoDecodeErrorZ");
        *ret_conv = CResult_CounterpartyForwardingInfoDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyForwardingInfoDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_CounterpartyForwardingInfoDecodeErrorZ* arg_conv = (LDKCResult_CounterpartyForwardingInfoDecodeErrorZ*)(arg & ~1);
+       LDKCResult_CounterpartyForwardingInfoDecodeErrorZ* arg_conv = (LDKCResult_CounterpartyForwardingInfoDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_CounterpartyForwardingInfoDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyForwardingInfoDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_CounterpartyForwardingInfoDecodeErrorZ* orig_conv = (LDKCResult_CounterpartyForwardingInfoDecodeErrorZ*)(orig & ~1);
+       LDKCResult_CounterpartyForwardingInfoDecodeErrorZ* orig_conv = (LDKCResult_CounterpartyForwardingInfoDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_CounterpartyForwardingInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CounterpartyForwardingInfoDecodeErrorZ), "LDKCResult_CounterpartyForwardingInfoDecodeErrorZ");
        *ret_conv = CResult_CounterpartyForwardingInfoDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelCounterpartyDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKChannelCounterparty o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = ChannelCounterparty_clone(&o_conv);
        LDKCResult_ChannelCounterpartyDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelCounterpartyDecodeErrorZ), "LDKCResult_ChannelCounterpartyDecodeErrorZ");
        *ret_conv = CResult_ChannelCounterpartyDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelCounterpartyDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ChannelCounterpartyDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelCounterpartyDecodeErrorZ), "LDKCResult_ChannelCounterpartyDecodeErrorZ");
        *ret_conv = CResult_ChannelCounterpartyDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelCounterpartyDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_ChannelCounterpartyDecodeErrorZ* o_conv = (LDKCResult_ChannelCounterpartyDecodeErrorZ*)(o & ~1);
+       LDKCResult_ChannelCounterpartyDecodeErrorZ* o_conv = (LDKCResult_ChannelCounterpartyDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_ChannelCounterpartyDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelCounterpartyDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ChannelCounterpartyDecodeErrorZ _res_conv = *(LDKCResult_ChannelCounterpartyDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_ChannelCounterpartyDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_ChannelCounterpartyDecodeErrorZ_clone_ptr(LDKCResult_ChannelCounterpartyDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_ChannelCounterpartyDecodeErrorZ_clone_ptr(LDKCResult_ChannelCounterpartyDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ChannelCounterpartyDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelCounterpartyDecodeErrorZ), "LDKCResult_ChannelCounterpartyDecodeErrorZ");
        *ret_conv = CResult_ChannelCounterpartyDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelCounterpartyDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_ChannelCounterpartyDecodeErrorZ* arg_conv = (LDKCResult_ChannelCounterpartyDecodeErrorZ*)(arg & ~1);
+       LDKCResult_ChannelCounterpartyDecodeErrorZ* arg_conv = (LDKCResult_ChannelCounterpartyDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_ChannelCounterpartyDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelCounterpartyDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_ChannelCounterpartyDecodeErrorZ* orig_conv = (LDKCResult_ChannelCounterpartyDecodeErrorZ*)(orig & ~1);
+       LDKCResult_ChannelCounterpartyDecodeErrorZ* orig_conv = (LDKCResult_ChannelCounterpartyDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_ChannelCounterpartyDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelCounterpartyDecodeErrorZ), "LDKCResult_ChannelCounterpartyDecodeErrorZ");
        *ret_conv = CResult_ChannelCounterpartyDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelDetailsDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKChannelDetails o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = ChannelDetails_clone(&o_conv);
        LDKCResult_ChannelDetailsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelDetailsDecodeErrorZ), "LDKCResult_ChannelDetailsDecodeErrorZ");
        *ret_conv = CResult_ChannelDetailsDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelDetailsDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ChannelDetailsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelDetailsDecodeErrorZ), "LDKCResult_ChannelDetailsDecodeErrorZ");
        *ret_conv = CResult_ChannelDetailsDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelDetailsDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_ChannelDetailsDecodeErrorZ* o_conv = (LDKCResult_ChannelDetailsDecodeErrorZ*)(o & ~1);
+       LDKCResult_ChannelDetailsDecodeErrorZ* o_conv = (LDKCResult_ChannelDetailsDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_ChannelDetailsDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelDetailsDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ChannelDetailsDecodeErrorZ _res_conv = *(LDKCResult_ChannelDetailsDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_ChannelDetailsDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_ChannelDetailsDecodeErrorZ_clone_ptr(LDKCResult_ChannelDetailsDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_ChannelDetailsDecodeErrorZ_clone_ptr(LDKCResult_ChannelDetailsDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ChannelDetailsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelDetailsDecodeErrorZ), "LDKCResult_ChannelDetailsDecodeErrorZ");
        *ret_conv = CResult_ChannelDetailsDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelDetailsDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_ChannelDetailsDecodeErrorZ* arg_conv = (LDKCResult_ChannelDetailsDecodeErrorZ*)(arg & ~1);
+       LDKCResult_ChannelDetailsDecodeErrorZ* arg_conv = (LDKCResult_ChannelDetailsDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_ChannelDetailsDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelDetailsDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_ChannelDetailsDecodeErrorZ* orig_conv = (LDKCResult_ChannelDetailsDecodeErrorZ*)(orig & ~1);
+       LDKCResult_ChannelDetailsDecodeErrorZ* orig_conv = (LDKCResult_ChannelDetailsDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_ChannelDetailsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelDetailsDecodeErrorZ), "LDKCResult_ChannelDetailsDecodeErrorZ");
        *ret_conv = CResult_ChannelDetailsDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PhantomRouteHintsDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKPhantomRouteHints o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = PhantomRouteHints_clone(&o_conv);
        LDKCResult_PhantomRouteHintsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PhantomRouteHintsDecodeErrorZ), "LDKCResult_PhantomRouteHintsDecodeErrorZ");
        *ret_conv = CResult_PhantomRouteHintsDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PhantomRouteHintsDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_PhantomRouteHintsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PhantomRouteHintsDecodeErrorZ), "LDKCResult_PhantomRouteHintsDecodeErrorZ");
        *ret_conv = CResult_PhantomRouteHintsDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1PhantomRouteHintsDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_PhantomRouteHintsDecodeErrorZ* o_conv = (LDKCResult_PhantomRouteHintsDecodeErrorZ*)(o & ~1);
+       LDKCResult_PhantomRouteHintsDecodeErrorZ* o_conv = (LDKCResult_PhantomRouteHintsDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_PhantomRouteHintsDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PhantomRouteHintsDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_PhantomRouteHintsDecodeErrorZ _res_conv = *(LDKCResult_PhantomRouteHintsDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_PhantomRouteHintsDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_PhantomRouteHintsDecodeErrorZ_clone_ptr(LDKCResult_PhantomRouteHintsDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_PhantomRouteHintsDecodeErrorZ_clone_ptr(LDKCResult_PhantomRouteHintsDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_PhantomRouteHintsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PhantomRouteHintsDecodeErrorZ), "LDKCResult_PhantomRouteHintsDecodeErrorZ");
        *ret_conv = CResult_PhantomRouteHintsDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PhantomRouteHintsDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_PhantomRouteHintsDecodeErrorZ* arg_conv = (LDKCResult_PhantomRouteHintsDecodeErrorZ*)(arg & ~1);
+       LDKCResult_PhantomRouteHintsDecodeErrorZ* arg_conv = (LDKCResult_PhantomRouteHintsDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_PhantomRouteHintsDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PhantomRouteHintsDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_PhantomRouteHintsDecodeErrorZ* orig_conv = (LDKCResult_PhantomRouteHintsDecodeErrorZ*)(orig & ~1);
+       LDKCResult_PhantomRouteHintsDecodeErrorZ* orig_conv = (LDKCResult_PhantomRouteHintsDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_PhantomRouteHintsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PhantomRouteHintsDecodeErrorZ), "LDKCResult_PhantomRouteHintsDecodeErrorZ");
        *ret_conv = CResult_PhantomRouteHintsDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1ChannelMonitorZ_1free(JNIEnv *env, jclass clz, int64_tArray _res) {
@@ -20349,8 +19057,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1ChannelMonitorZ_1free(JN
        for (size_t q = 0; q < _res_constr.datalen; q++) {
                int64_t _res_conv_16 = _res_vals[q];
                LDKChannelMonitor _res_conv_16_conv;
-               _res_conv_16_conv.inner = (void*)(_res_conv_16 & (~1));
-               _res_conv_16_conv.is_owned = (_res_conv_16 & 1) || (_res_conv_16 == 0);
+               _res_conv_16_conv.inner = untag_ptr(_res_conv_16);
+               _res_conv_16_conv.is_owned = ptr_is_owned(_res_conv_16);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(_res_conv_16_conv);
                _res_constr.data[q] = _res_conv_16_conv;
        }
@@ -20363,172 +19071,173 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1BlockHashChannelMa
        CHECK((*env)->GetArrayLength(env, a) == 32);
        (*env)->GetByteArrayRegion(env, a, 0, 32, a_ref.data);
        LDKChannelManager b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = (b & 1) || (b == 0);
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
        // WARNING: we need a move here but no clone is available for LDKChannelManager
+       
        LDKC2Tuple_BlockHashChannelManagerZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_BlockHashChannelManagerZ), "LDKC2Tuple_BlockHashChannelManagerZ");
        *ret_conv = C2Tuple_BlockHashChannelManagerZ_new(a_ref, b_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C2Tuple_1BlockHashChannelManagerZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_BlockHashChannelManagerZ _res_conv = *(LDKC2Tuple_BlockHashChannelManagerZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        C2Tuple_BlockHashChannelManagerZ_free(_res_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1BlockHashChannelManagerZDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKC2Tuple_BlockHashChannelManagerZ o_conv = *(LDKC2Tuple_BlockHashChannelManagerZ*)(o_ptr);
        // WARNING: we may need a move here but no clone is available for LDKC2Tuple_BlockHashChannelManagerZ
        LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ), "LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ");
        *ret_conv = CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1BlockHashChannelManagerZDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ), "LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ");
        *ret_conv = CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1BlockHashChannelManagerZDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ* o_conv = (LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ*)(o & ~1);
+       LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ* o_conv = (LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1BlockHashChannelManagerZDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ _res_conv = *(LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_free(_res_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelConfigDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKChannelConfig o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = ChannelConfig_clone(&o_conv);
        LDKCResult_ChannelConfigDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelConfigDecodeErrorZ), "LDKCResult_ChannelConfigDecodeErrorZ");
        *ret_conv = CResult_ChannelConfigDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelConfigDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ChannelConfigDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelConfigDecodeErrorZ), "LDKCResult_ChannelConfigDecodeErrorZ");
        *ret_conv = CResult_ChannelConfigDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelConfigDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_ChannelConfigDecodeErrorZ* o_conv = (LDKCResult_ChannelConfigDecodeErrorZ*)(o & ~1);
+       LDKCResult_ChannelConfigDecodeErrorZ* o_conv = (LDKCResult_ChannelConfigDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_ChannelConfigDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelConfigDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ChannelConfigDecodeErrorZ _res_conv = *(LDKCResult_ChannelConfigDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_ChannelConfigDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_ChannelConfigDecodeErrorZ_clone_ptr(LDKCResult_ChannelConfigDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_ChannelConfigDecodeErrorZ_clone_ptr(LDKCResult_ChannelConfigDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ChannelConfigDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelConfigDecodeErrorZ), "LDKCResult_ChannelConfigDecodeErrorZ");
        *ret_conv = CResult_ChannelConfigDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelConfigDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_ChannelConfigDecodeErrorZ* arg_conv = (LDKCResult_ChannelConfigDecodeErrorZ*)(arg & ~1);
+       LDKCResult_ChannelConfigDecodeErrorZ* arg_conv = (LDKCResult_ChannelConfigDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_ChannelConfigDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelConfigDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_ChannelConfigDecodeErrorZ* orig_conv = (LDKCResult_ChannelConfigDecodeErrorZ*)(orig & ~1);
+       LDKCResult_ChannelConfigDecodeErrorZ* orig_conv = (LDKCResult_ChannelConfigDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_ChannelConfigDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelConfigDecodeErrorZ), "LDKCResult_ChannelConfigDecodeErrorZ");
        *ret_conv = CResult_ChannelConfigDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1OutPointDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKOutPoint o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = OutPoint_clone(&o_conv);
        LDKCResult_OutPointDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_OutPointDecodeErrorZ), "LDKCResult_OutPointDecodeErrorZ");
        *ret_conv = CResult_OutPointDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1OutPointDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_OutPointDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_OutPointDecodeErrorZ), "LDKCResult_OutPointDecodeErrorZ");
        *ret_conv = CResult_OutPointDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1OutPointDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_OutPointDecodeErrorZ* o_conv = (LDKCResult_OutPointDecodeErrorZ*)(o & ~1);
+       LDKCResult_OutPointDecodeErrorZ* o_conv = (LDKCResult_OutPointDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_OutPointDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1OutPointDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_OutPointDecodeErrorZ _res_conv = *(LDKCResult_OutPointDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_OutPointDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_OutPointDecodeErrorZ_clone_ptr(LDKCResult_OutPointDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_OutPointDecodeErrorZ_clone_ptr(LDKCResult_OutPointDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_OutPointDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_OutPointDecodeErrorZ), "LDKCResult_OutPointDecodeErrorZ");
        *ret_conv = CResult_OutPointDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1OutPointDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_OutPointDecodeErrorZ* arg_conv = (LDKCResult_OutPointDecodeErrorZ*)(arg & ~1);
+       LDKCResult_OutPointDecodeErrorZ* arg_conv = (LDKCResult_OutPointDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_OutPointDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1OutPointDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_OutPointDecodeErrorZ* orig_conv = (LDKCResult_OutPointDecodeErrorZ*)(orig & ~1);
+       LDKCResult_OutPointDecodeErrorZ* orig_conv = (LDKCResult_OutPointDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_OutPointDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_OutPointDecodeErrorZ), "LDKCResult_OutPointDecodeErrorZ");
        *ret_conv = CResult_OutPointDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1TypeZ_1some(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKType o_conv = *(LDKType*)(o_ptr);
        if (o_conv.free == LDKType_JCalls_free) {
@@ -20537,98 +19246,98 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1TypeZ_1some(JNIEnv
        }
        LDKCOption_TypeZ *ret_copy = MALLOC(sizeof(LDKCOption_TypeZ), "LDKCOption_TypeZ");
        *ret_copy = COption_TypeZ_some(o_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1TypeZ_1none(JNIEnv *env, jclass clz) {
        LDKCOption_TypeZ *ret_copy = MALLOC(sizeof(LDKCOption_TypeZ), "LDKCOption_TypeZ");
        *ret_copy = COption_TypeZ_none();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1TypeZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_TypeZ _res_conv = *(LDKCOption_TypeZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        COption_TypeZ_free(_res_conv);
 }
 
-static inline uintptr_t COption_TypeZ_clone_ptr(LDKCOption_TypeZ *NONNULL_PTR arg) {
+static inline uint64_t COption_TypeZ_clone_ptr(LDKCOption_TypeZ *NONNULL_PTR arg) {
        LDKCOption_TypeZ *ret_copy = MALLOC(sizeof(LDKCOption_TypeZ), "LDKCOption_TypeZ");
        *ret_copy = COption_TypeZ_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1TypeZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCOption_TypeZ* arg_conv = (LDKCOption_TypeZ*)arg;
+       LDKCOption_TypeZ* arg_conv = (LDKCOption_TypeZ*)untag_ptr(arg);
        int64_t ret_conv = COption_TypeZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1TypeZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCOption_TypeZ* orig_conv = (LDKCOption_TypeZ*)orig;
+       LDKCOption_TypeZ* orig_conv = (LDKCOption_TypeZ*)untag_ptr(orig);
        LDKCOption_TypeZ *ret_copy = MALLOC(sizeof(LDKCOption_TypeZ), "LDKCOption_TypeZ");
        *ret_copy = COption_TypeZ_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1TypeZDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKCOption_TypeZ o_conv = *(LDKCOption_TypeZ*)(o_ptr);
-       o_conv = COption_TypeZ_clone((LDKCOption_TypeZ*)(((uintptr_t)o) & ~1));
+       o_conv = COption_TypeZ_clone((LDKCOption_TypeZ*)untag_ptr(o));
        LDKCResult_COption_TypeZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_TypeZDecodeErrorZ), "LDKCResult_COption_TypeZDecodeErrorZ");
        *ret_conv = CResult_COption_TypeZDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1TypeZDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_COption_TypeZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_TypeZDecodeErrorZ), "LDKCResult_COption_TypeZDecodeErrorZ");
        *ret_conv = CResult_COption_TypeZDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1TypeZDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_COption_TypeZDecodeErrorZ* o_conv = (LDKCResult_COption_TypeZDecodeErrorZ*)(o & ~1);
+       LDKCResult_COption_TypeZDecodeErrorZ* o_conv = (LDKCResult_COption_TypeZDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_COption_TypeZDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1TypeZDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_COption_TypeZDecodeErrorZ _res_conv = *(LDKCResult_COption_TypeZDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_COption_TypeZDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_COption_TypeZDecodeErrorZ_clone_ptr(LDKCResult_COption_TypeZDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_COption_TypeZDecodeErrorZ_clone_ptr(LDKCResult_COption_TypeZDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_COption_TypeZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_TypeZDecodeErrorZ), "LDKCResult_COption_TypeZDecodeErrorZ");
        *ret_conv = CResult_COption_TypeZDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1TypeZDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_COption_TypeZDecodeErrorZ* arg_conv = (LDKCResult_COption_TypeZDecodeErrorZ*)(arg & ~1);
+       LDKCResult_COption_TypeZDecodeErrorZ* arg_conv = (LDKCResult_COption_TypeZDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_COption_TypeZDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1TypeZDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_COption_TypeZDecodeErrorZ* orig_conv = (LDKCResult_COption_TypeZDecodeErrorZ*)(orig & ~1);
+       LDKCResult_COption_TypeZDecodeErrorZ* orig_conv = (LDKCResult_COption_TypeZDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_COption_TypeZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_TypeZDecodeErrorZ), "LDKCResult_COption_TypeZDecodeErrorZ");
        *ret_conv = CResult_COption_TypeZDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentIdPaymentErrorZ_1ok(JNIEnv *env, jclass clz, int8_tArray o) {
@@ -20637,305 +19346,305 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentIdPaymentEr
        (*env)->GetByteArrayRegion(env, o, 0, 32, o_ref.data);
        LDKCResult_PaymentIdPaymentErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentIdPaymentErrorZ), "LDKCResult_PaymentIdPaymentErrorZ");
        *ret_conv = CResult_PaymentIdPaymentErrorZ_ok(o_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentIdPaymentErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
-       void* e_ptr = (void*)(((uintptr_t)e) & ~1);
+       void* e_ptr = untag_ptr(e);
        CHECK_ACCESS(e_ptr);
        LDKPaymentError e_conv = *(LDKPaymentError*)(e_ptr);
-       e_conv = PaymentError_clone((LDKPaymentError*)(((uintptr_t)e) & ~1));
+       e_conv = PaymentError_clone((LDKPaymentError*)untag_ptr(e));
        LDKCResult_PaymentIdPaymentErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentIdPaymentErrorZ), "LDKCResult_PaymentIdPaymentErrorZ");
        *ret_conv = CResult_PaymentIdPaymentErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentIdPaymentErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_PaymentIdPaymentErrorZ* o_conv = (LDKCResult_PaymentIdPaymentErrorZ*)(o & ~1);
+       LDKCResult_PaymentIdPaymentErrorZ* o_conv = (LDKCResult_PaymentIdPaymentErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_PaymentIdPaymentErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentIdPaymentErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_PaymentIdPaymentErrorZ _res_conv = *(LDKCResult_PaymentIdPaymentErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_PaymentIdPaymentErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_PaymentIdPaymentErrorZ_clone_ptr(LDKCResult_PaymentIdPaymentErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_PaymentIdPaymentErrorZ_clone_ptr(LDKCResult_PaymentIdPaymentErrorZ *NONNULL_PTR arg) {
        LDKCResult_PaymentIdPaymentErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentIdPaymentErrorZ), "LDKCResult_PaymentIdPaymentErrorZ");
        *ret_conv = CResult_PaymentIdPaymentErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentIdPaymentErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_PaymentIdPaymentErrorZ* arg_conv = (LDKCResult_PaymentIdPaymentErrorZ*)(arg & ~1);
+       LDKCResult_PaymentIdPaymentErrorZ* arg_conv = (LDKCResult_PaymentIdPaymentErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_PaymentIdPaymentErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentIdPaymentErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_PaymentIdPaymentErrorZ* orig_conv = (LDKCResult_PaymentIdPaymentErrorZ*)(orig & ~1);
+       LDKCResult_PaymentIdPaymentErrorZ* orig_conv = (LDKCResult_PaymentIdPaymentErrorZ*)untag_ptr(orig);
        LDKCResult_PaymentIdPaymentErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentIdPaymentErrorZ), "LDKCResult_PaymentIdPaymentErrorZ");
        *ret_conv = CResult_PaymentIdPaymentErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SiPrefixParseErrorZ_1ok(JNIEnv *env, jclass clz, jclass o) {
        LDKSiPrefix o_conv = LDKSiPrefix_from_java(env, o);
        LDKCResult_SiPrefixParseErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SiPrefixParseErrorZ), "LDKCResult_SiPrefixParseErrorZ");
        *ret_conv = CResult_SiPrefixParseErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SiPrefixParseErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
-       void* e_ptr = (void*)(((uintptr_t)e) & ~1);
+       void* e_ptr = untag_ptr(e);
        CHECK_ACCESS(e_ptr);
        LDKParseError e_conv = *(LDKParseError*)(e_ptr);
-       e_conv = ParseError_clone((LDKParseError*)(((uintptr_t)e) & ~1));
+       e_conv = ParseError_clone((LDKParseError*)untag_ptr(e));
        LDKCResult_SiPrefixParseErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SiPrefixParseErrorZ), "LDKCResult_SiPrefixParseErrorZ");
        *ret_conv = CResult_SiPrefixParseErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1SiPrefixParseErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_SiPrefixParseErrorZ* o_conv = (LDKCResult_SiPrefixParseErrorZ*)(o & ~1);
+       LDKCResult_SiPrefixParseErrorZ* o_conv = (LDKCResult_SiPrefixParseErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_SiPrefixParseErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1SiPrefixParseErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_SiPrefixParseErrorZ _res_conv = *(LDKCResult_SiPrefixParseErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_SiPrefixParseErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_SiPrefixParseErrorZ_clone_ptr(LDKCResult_SiPrefixParseErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_SiPrefixParseErrorZ_clone_ptr(LDKCResult_SiPrefixParseErrorZ *NONNULL_PTR arg) {
        LDKCResult_SiPrefixParseErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SiPrefixParseErrorZ), "LDKCResult_SiPrefixParseErrorZ");
        *ret_conv = CResult_SiPrefixParseErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SiPrefixParseErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_SiPrefixParseErrorZ* arg_conv = (LDKCResult_SiPrefixParseErrorZ*)(arg & ~1);
+       LDKCResult_SiPrefixParseErrorZ* arg_conv = (LDKCResult_SiPrefixParseErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_SiPrefixParseErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SiPrefixParseErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_SiPrefixParseErrorZ* orig_conv = (LDKCResult_SiPrefixParseErrorZ*)(orig & ~1);
+       LDKCResult_SiPrefixParseErrorZ* orig_conv = (LDKCResult_SiPrefixParseErrorZ*)untag_ptr(orig);
        LDKCResult_SiPrefixParseErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SiPrefixParseErrorZ), "LDKCResult_SiPrefixParseErrorZ");
        *ret_conv = CResult_SiPrefixParseErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceParseOrSemanticErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKInvoice o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = Invoice_clone(&o_conv);
        LDKCResult_InvoiceParseOrSemanticErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceParseOrSemanticErrorZ), "LDKCResult_InvoiceParseOrSemanticErrorZ");
        *ret_conv = CResult_InvoiceParseOrSemanticErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceParseOrSemanticErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
-       void* e_ptr = (void*)(((uintptr_t)e) & ~1);
+       void* e_ptr = untag_ptr(e);
        CHECK_ACCESS(e_ptr);
        LDKParseOrSemanticError e_conv = *(LDKParseOrSemanticError*)(e_ptr);
-       e_conv = ParseOrSemanticError_clone((LDKParseOrSemanticError*)(((uintptr_t)e) & ~1));
+       e_conv = ParseOrSemanticError_clone((LDKParseOrSemanticError*)untag_ptr(e));
        LDKCResult_InvoiceParseOrSemanticErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceParseOrSemanticErrorZ), "LDKCResult_InvoiceParseOrSemanticErrorZ");
        *ret_conv = CResult_InvoiceParseOrSemanticErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceParseOrSemanticErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_InvoiceParseOrSemanticErrorZ* o_conv = (LDKCResult_InvoiceParseOrSemanticErrorZ*)(o & ~1);
+       LDKCResult_InvoiceParseOrSemanticErrorZ* o_conv = (LDKCResult_InvoiceParseOrSemanticErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_InvoiceParseOrSemanticErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceParseOrSemanticErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_InvoiceParseOrSemanticErrorZ _res_conv = *(LDKCResult_InvoiceParseOrSemanticErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_InvoiceParseOrSemanticErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_InvoiceParseOrSemanticErrorZ_clone_ptr(LDKCResult_InvoiceParseOrSemanticErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_InvoiceParseOrSemanticErrorZ_clone_ptr(LDKCResult_InvoiceParseOrSemanticErrorZ *NONNULL_PTR arg) {
        LDKCResult_InvoiceParseOrSemanticErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceParseOrSemanticErrorZ), "LDKCResult_InvoiceParseOrSemanticErrorZ");
        *ret_conv = CResult_InvoiceParseOrSemanticErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceParseOrSemanticErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_InvoiceParseOrSemanticErrorZ* arg_conv = (LDKCResult_InvoiceParseOrSemanticErrorZ*)(arg & ~1);
+       LDKCResult_InvoiceParseOrSemanticErrorZ* arg_conv = (LDKCResult_InvoiceParseOrSemanticErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_InvoiceParseOrSemanticErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceParseOrSemanticErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_InvoiceParseOrSemanticErrorZ* orig_conv = (LDKCResult_InvoiceParseOrSemanticErrorZ*)(orig & ~1);
+       LDKCResult_InvoiceParseOrSemanticErrorZ* orig_conv = (LDKCResult_InvoiceParseOrSemanticErrorZ*)untag_ptr(orig);
        LDKCResult_InvoiceParseOrSemanticErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceParseOrSemanticErrorZ), "LDKCResult_InvoiceParseOrSemanticErrorZ");
        *ret_conv = CResult_InvoiceParseOrSemanticErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SignedRawInvoiceParseErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKSignedRawInvoice o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = SignedRawInvoice_clone(&o_conv);
        LDKCResult_SignedRawInvoiceParseErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SignedRawInvoiceParseErrorZ), "LDKCResult_SignedRawInvoiceParseErrorZ");
        *ret_conv = CResult_SignedRawInvoiceParseErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SignedRawInvoiceParseErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
-       void* e_ptr = (void*)(((uintptr_t)e) & ~1);
+       void* e_ptr = untag_ptr(e);
        CHECK_ACCESS(e_ptr);
        LDKParseError e_conv = *(LDKParseError*)(e_ptr);
-       e_conv = ParseError_clone((LDKParseError*)(((uintptr_t)e) & ~1));
+       e_conv = ParseError_clone((LDKParseError*)untag_ptr(e));
        LDKCResult_SignedRawInvoiceParseErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SignedRawInvoiceParseErrorZ), "LDKCResult_SignedRawInvoiceParseErrorZ");
        *ret_conv = CResult_SignedRawInvoiceParseErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1SignedRawInvoiceParseErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_SignedRawInvoiceParseErrorZ* o_conv = (LDKCResult_SignedRawInvoiceParseErrorZ*)(o & ~1);
+       LDKCResult_SignedRawInvoiceParseErrorZ* o_conv = (LDKCResult_SignedRawInvoiceParseErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_SignedRawInvoiceParseErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1SignedRawInvoiceParseErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_SignedRawInvoiceParseErrorZ _res_conv = *(LDKCResult_SignedRawInvoiceParseErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_SignedRawInvoiceParseErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_SignedRawInvoiceParseErrorZ_clone_ptr(LDKCResult_SignedRawInvoiceParseErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_SignedRawInvoiceParseErrorZ_clone_ptr(LDKCResult_SignedRawInvoiceParseErrorZ *NONNULL_PTR arg) {
        LDKCResult_SignedRawInvoiceParseErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SignedRawInvoiceParseErrorZ), "LDKCResult_SignedRawInvoiceParseErrorZ");
        *ret_conv = CResult_SignedRawInvoiceParseErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SignedRawInvoiceParseErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_SignedRawInvoiceParseErrorZ* arg_conv = (LDKCResult_SignedRawInvoiceParseErrorZ*)(arg & ~1);
+       LDKCResult_SignedRawInvoiceParseErrorZ* arg_conv = (LDKCResult_SignedRawInvoiceParseErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_SignedRawInvoiceParseErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SignedRawInvoiceParseErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_SignedRawInvoiceParseErrorZ* orig_conv = (LDKCResult_SignedRawInvoiceParseErrorZ*)(orig & ~1);
+       LDKCResult_SignedRawInvoiceParseErrorZ* orig_conv = (LDKCResult_SignedRawInvoiceParseErrorZ*)untag_ptr(orig);
        LDKCResult_SignedRawInvoiceParseErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SignedRawInvoiceParseErrorZ), "LDKCResult_SignedRawInvoiceParseErrorZ");
        *ret_conv = CResult_SignedRawInvoiceParseErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
-static inline uintptr_t C3Tuple_RawInvoice_u832InvoiceSignatureZ_clone_ptr(LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ *NONNULL_PTR arg) {
+static inline uint64_t C3Tuple_RawInvoice_u832InvoiceSignatureZ_clone_ptr(LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ *NONNULL_PTR arg) {
        LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ* ret_conv = MALLOC(sizeof(LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ), "LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ");
        *ret_conv = C3Tuple_RawInvoice_u832InvoiceSignatureZ_clone(arg);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C3Tuple_1RawInvoice_1u832InvoiceSignatureZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ* arg_conv = (LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ*)(arg & ~1);
+       LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ* arg_conv = (LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ*)untag_ptr(arg);
        int64_t ret_conv = C3Tuple_RawInvoice_u832InvoiceSignatureZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C3Tuple_1RawInvoice_1u832InvoiceSignatureZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ* orig_conv = (LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ*)(orig & ~1);
+       LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ* orig_conv = (LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ*)untag_ptr(orig);
        LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ* ret_conv = MALLOC(sizeof(LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ), "LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ");
        *ret_conv = C3Tuple_RawInvoice_u832InvoiceSignatureZ_clone(orig_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C3Tuple_1RawInvoice_1u832InvoiceSignatureZ_1new(JNIEnv *env, jclass clz, int64_t a, int8_tArray b, int64_t c) {
        LDKRawInvoice a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = (a & 1) || (a == 0);
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
        a_conv = RawInvoice_clone(&a_conv);
        LDKThirtyTwoBytes b_ref;
        CHECK((*env)->GetArrayLength(env, b) == 32);
        (*env)->GetByteArrayRegion(env, b, 0, 32, b_ref.data);
        LDKInvoiceSignature c_conv;
-       c_conv.inner = (void*)(c & (~1));
-       c_conv.is_owned = (c & 1) || (c == 0);
+       c_conv.inner = untag_ptr(c);
+       c_conv.is_owned = ptr_is_owned(c);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(c_conv);
        c_conv = InvoiceSignature_clone(&c_conv);
        LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ* ret_conv = MALLOC(sizeof(LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ), "LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ");
        *ret_conv = C3Tuple_RawInvoice_u832InvoiceSignatureZ_new(a_conv, b_ref, c_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C3Tuple_1RawInvoice_1u832InvoiceSignatureZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ _res_conv = *(LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        C3Tuple_RawInvoice_u832InvoiceSignatureZ_free(_res_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PayeePubKeyErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKPayeePubKey o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = PayeePubKey_clone(&o_conv);
        LDKCResult_PayeePubKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PayeePubKeyErrorZ), "LDKCResult_PayeePubKeyErrorZ");
        *ret_conv = CResult_PayeePubKeyErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PayeePubKeyErrorZ_1err(JNIEnv *env, jclass clz, jclass e) {
        LDKSecp256k1Error e_conv = LDKSecp256k1Error_from_java(env, e);
        LDKCResult_PayeePubKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PayeePubKeyErrorZ), "LDKCResult_PayeePubKeyErrorZ");
        *ret_conv = CResult_PayeePubKeyErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1PayeePubKeyErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_PayeePubKeyErrorZ* o_conv = (LDKCResult_PayeePubKeyErrorZ*)(o & ~1);
+       LDKCResult_PayeePubKeyErrorZ* o_conv = (LDKCResult_PayeePubKeyErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_PayeePubKeyErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PayeePubKeyErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_PayeePubKeyErrorZ _res_conv = *(LDKCResult_PayeePubKeyErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_PayeePubKeyErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_PayeePubKeyErrorZ_clone_ptr(LDKCResult_PayeePubKeyErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_PayeePubKeyErrorZ_clone_ptr(LDKCResult_PayeePubKeyErrorZ *NONNULL_PTR arg) {
        LDKCResult_PayeePubKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PayeePubKeyErrorZ), "LDKCResult_PayeePubKeyErrorZ");
        *ret_conv = CResult_PayeePubKeyErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PayeePubKeyErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_PayeePubKeyErrorZ* arg_conv = (LDKCResult_PayeePubKeyErrorZ*)(arg & ~1);
+       LDKCResult_PayeePubKeyErrorZ* arg_conv = (LDKCResult_PayeePubKeyErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_PayeePubKeyErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PayeePubKeyErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_PayeePubKeyErrorZ* orig_conv = (LDKCResult_PayeePubKeyErrorZ*)(orig & ~1);
+       LDKCResult_PayeePubKeyErrorZ* orig_conv = (LDKCResult_PayeePubKeyErrorZ*)untag_ptr(orig);
        LDKCResult_PayeePubKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PayeePubKeyErrorZ), "LDKCResult_PayeePubKeyErrorZ");
        *ret_conv = CResult_PayeePubKeyErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1PrivateRouteZ_1free(JNIEnv *env, jclass clz, int64_tArray _res) {
@@ -20949,8 +19658,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1PrivateRouteZ_1free(JNIE
        for (size_t o = 0; o < _res_constr.datalen; o++) {
                int64_t _res_conv_14 = _res_vals[o];
                LDKPrivateRoute _res_conv_14_conv;
-               _res_conv_14_conv.inner = (void*)(_res_conv_14 & (~1));
-               _res_conv_14_conv.is_owned = (_res_conv_14 & 1) || (_res_conv_14 == 0);
+               _res_conv_14_conv.inner = untag_ptr(_res_conv_14);
+               _res_conv_14_conv.is_owned = ptr_is_owned(_res_conv_14);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(_res_conv_14_conv);
                _res_constr.data[o] = _res_conv_14_conv;
        }
@@ -20960,534 +19669,534 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1PrivateRouteZ_1free(JNIE
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PositiveTimestampCreationErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKPositiveTimestamp o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = PositiveTimestamp_clone(&o_conv);
        LDKCResult_PositiveTimestampCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PositiveTimestampCreationErrorZ), "LDKCResult_PositiveTimestampCreationErrorZ");
        *ret_conv = CResult_PositiveTimestampCreationErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PositiveTimestampCreationErrorZ_1err(JNIEnv *env, jclass clz, jclass e) {
        LDKCreationError e_conv = LDKCreationError_from_java(env, e);
        LDKCResult_PositiveTimestampCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PositiveTimestampCreationErrorZ), "LDKCResult_PositiveTimestampCreationErrorZ");
        *ret_conv = CResult_PositiveTimestampCreationErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1PositiveTimestampCreationErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_PositiveTimestampCreationErrorZ* o_conv = (LDKCResult_PositiveTimestampCreationErrorZ*)(o & ~1);
+       LDKCResult_PositiveTimestampCreationErrorZ* o_conv = (LDKCResult_PositiveTimestampCreationErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_PositiveTimestampCreationErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PositiveTimestampCreationErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_PositiveTimestampCreationErrorZ _res_conv = *(LDKCResult_PositiveTimestampCreationErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_PositiveTimestampCreationErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_PositiveTimestampCreationErrorZ_clone_ptr(LDKCResult_PositiveTimestampCreationErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_PositiveTimestampCreationErrorZ_clone_ptr(LDKCResult_PositiveTimestampCreationErrorZ *NONNULL_PTR arg) {
        LDKCResult_PositiveTimestampCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PositiveTimestampCreationErrorZ), "LDKCResult_PositiveTimestampCreationErrorZ");
        *ret_conv = CResult_PositiveTimestampCreationErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PositiveTimestampCreationErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_PositiveTimestampCreationErrorZ* arg_conv = (LDKCResult_PositiveTimestampCreationErrorZ*)(arg & ~1);
+       LDKCResult_PositiveTimestampCreationErrorZ* arg_conv = (LDKCResult_PositiveTimestampCreationErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_PositiveTimestampCreationErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PositiveTimestampCreationErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_PositiveTimestampCreationErrorZ* orig_conv = (LDKCResult_PositiveTimestampCreationErrorZ*)(orig & ~1);
+       LDKCResult_PositiveTimestampCreationErrorZ* orig_conv = (LDKCResult_PositiveTimestampCreationErrorZ*)untag_ptr(orig);
        LDKCResult_PositiveTimestampCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PositiveTimestampCreationErrorZ), "LDKCResult_PositiveTimestampCreationErrorZ");
        *ret_conv = CResult_PositiveTimestampCreationErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneSemanticErrorZ_1ok(JNIEnv *env, jclass clz) {
        LDKCResult_NoneSemanticErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneSemanticErrorZ), "LDKCResult_NoneSemanticErrorZ");
        *ret_conv = CResult_NoneSemanticErrorZ_ok();
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneSemanticErrorZ_1err(JNIEnv *env, jclass clz, jclass e) {
        LDKSemanticError e_conv = LDKSemanticError_from_java(env, e);
        LDKCResult_NoneSemanticErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneSemanticErrorZ), "LDKCResult_NoneSemanticErrorZ");
        *ret_conv = CResult_NoneSemanticErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1NoneSemanticErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_NoneSemanticErrorZ* o_conv = (LDKCResult_NoneSemanticErrorZ*)(o & ~1);
+       LDKCResult_NoneSemanticErrorZ* o_conv = (LDKCResult_NoneSemanticErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_NoneSemanticErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NoneSemanticErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NoneSemanticErrorZ _res_conv = *(LDKCResult_NoneSemanticErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_NoneSemanticErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_NoneSemanticErrorZ_clone_ptr(LDKCResult_NoneSemanticErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_NoneSemanticErrorZ_clone_ptr(LDKCResult_NoneSemanticErrorZ *NONNULL_PTR arg) {
        LDKCResult_NoneSemanticErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneSemanticErrorZ), "LDKCResult_NoneSemanticErrorZ");
        *ret_conv = CResult_NoneSemanticErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneSemanticErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_NoneSemanticErrorZ* arg_conv = (LDKCResult_NoneSemanticErrorZ*)(arg & ~1);
+       LDKCResult_NoneSemanticErrorZ* arg_conv = (LDKCResult_NoneSemanticErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_NoneSemanticErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneSemanticErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_NoneSemanticErrorZ* orig_conv = (LDKCResult_NoneSemanticErrorZ*)(orig & ~1);
+       LDKCResult_NoneSemanticErrorZ* orig_conv = (LDKCResult_NoneSemanticErrorZ*)untag_ptr(orig);
        LDKCResult_NoneSemanticErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneSemanticErrorZ), "LDKCResult_NoneSemanticErrorZ");
        *ret_conv = CResult_NoneSemanticErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceSemanticErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKInvoice o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = Invoice_clone(&o_conv);
        LDKCResult_InvoiceSemanticErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceSemanticErrorZ), "LDKCResult_InvoiceSemanticErrorZ");
        *ret_conv = CResult_InvoiceSemanticErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceSemanticErrorZ_1err(JNIEnv *env, jclass clz, jclass e) {
        LDKSemanticError e_conv = LDKSemanticError_from_java(env, e);
        LDKCResult_InvoiceSemanticErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceSemanticErrorZ), "LDKCResult_InvoiceSemanticErrorZ");
        *ret_conv = CResult_InvoiceSemanticErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceSemanticErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_InvoiceSemanticErrorZ* o_conv = (LDKCResult_InvoiceSemanticErrorZ*)(o & ~1);
+       LDKCResult_InvoiceSemanticErrorZ* o_conv = (LDKCResult_InvoiceSemanticErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_InvoiceSemanticErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceSemanticErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_InvoiceSemanticErrorZ _res_conv = *(LDKCResult_InvoiceSemanticErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_InvoiceSemanticErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_InvoiceSemanticErrorZ_clone_ptr(LDKCResult_InvoiceSemanticErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_InvoiceSemanticErrorZ_clone_ptr(LDKCResult_InvoiceSemanticErrorZ *NONNULL_PTR arg) {
        LDKCResult_InvoiceSemanticErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceSemanticErrorZ), "LDKCResult_InvoiceSemanticErrorZ");
        *ret_conv = CResult_InvoiceSemanticErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceSemanticErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_InvoiceSemanticErrorZ* arg_conv = (LDKCResult_InvoiceSemanticErrorZ*)(arg & ~1);
+       LDKCResult_InvoiceSemanticErrorZ* arg_conv = (LDKCResult_InvoiceSemanticErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_InvoiceSemanticErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceSemanticErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_InvoiceSemanticErrorZ* orig_conv = (LDKCResult_InvoiceSemanticErrorZ*)(orig & ~1);
+       LDKCResult_InvoiceSemanticErrorZ* orig_conv = (LDKCResult_InvoiceSemanticErrorZ*)untag_ptr(orig);
        LDKCResult_InvoiceSemanticErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceSemanticErrorZ), "LDKCResult_InvoiceSemanticErrorZ");
        *ret_conv = CResult_InvoiceSemanticErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1DescriptionCreationErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKDescription o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = Description_clone(&o_conv);
        LDKCResult_DescriptionCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_DescriptionCreationErrorZ), "LDKCResult_DescriptionCreationErrorZ");
        *ret_conv = CResult_DescriptionCreationErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1DescriptionCreationErrorZ_1err(JNIEnv *env, jclass clz, jclass e) {
        LDKCreationError e_conv = LDKCreationError_from_java(env, e);
        LDKCResult_DescriptionCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_DescriptionCreationErrorZ), "LDKCResult_DescriptionCreationErrorZ");
        *ret_conv = CResult_DescriptionCreationErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1DescriptionCreationErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_DescriptionCreationErrorZ* o_conv = (LDKCResult_DescriptionCreationErrorZ*)(o & ~1);
+       LDKCResult_DescriptionCreationErrorZ* o_conv = (LDKCResult_DescriptionCreationErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_DescriptionCreationErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1DescriptionCreationErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_DescriptionCreationErrorZ _res_conv = *(LDKCResult_DescriptionCreationErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_DescriptionCreationErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_DescriptionCreationErrorZ_clone_ptr(LDKCResult_DescriptionCreationErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_DescriptionCreationErrorZ_clone_ptr(LDKCResult_DescriptionCreationErrorZ *NONNULL_PTR arg) {
        LDKCResult_DescriptionCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_DescriptionCreationErrorZ), "LDKCResult_DescriptionCreationErrorZ");
        *ret_conv = CResult_DescriptionCreationErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1DescriptionCreationErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_DescriptionCreationErrorZ* arg_conv = (LDKCResult_DescriptionCreationErrorZ*)(arg & ~1);
+       LDKCResult_DescriptionCreationErrorZ* arg_conv = (LDKCResult_DescriptionCreationErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_DescriptionCreationErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1DescriptionCreationErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_DescriptionCreationErrorZ* orig_conv = (LDKCResult_DescriptionCreationErrorZ*)(orig & ~1);
+       LDKCResult_DescriptionCreationErrorZ* orig_conv = (LDKCResult_DescriptionCreationErrorZ*)untag_ptr(orig);
        LDKCResult_DescriptionCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_DescriptionCreationErrorZ), "LDKCResult_DescriptionCreationErrorZ");
        *ret_conv = CResult_DescriptionCreationErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PrivateRouteCreationErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKPrivateRoute o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = PrivateRoute_clone(&o_conv);
        LDKCResult_PrivateRouteCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PrivateRouteCreationErrorZ), "LDKCResult_PrivateRouteCreationErrorZ");
        *ret_conv = CResult_PrivateRouteCreationErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PrivateRouteCreationErrorZ_1err(JNIEnv *env, jclass clz, jclass e) {
        LDKCreationError e_conv = LDKCreationError_from_java(env, e);
        LDKCResult_PrivateRouteCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PrivateRouteCreationErrorZ), "LDKCResult_PrivateRouteCreationErrorZ");
        *ret_conv = CResult_PrivateRouteCreationErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1PrivateRouteCreationErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_PrivateRouteCreationErrorZ* o_conv = (LDKCResult_PrivateRouteCreationErrorZ*)(o & ~1);
+       LDKCResult_PrivateRouteCreationErrorZ* o_conv = (LDKCResult_PrivateRouteCreationErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_PrivateRouteCreationErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PrivateRouteCreationErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_PrivateRouteCreationErrorZ _res_conv = *(LDKCResult_PrivateRouteCreationErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_PrivateRouteCreationErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_PrivateRouteCreationErrorZ_clone_ptr(LDKCResult_PrivateRouteCreationErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_PrivateRouteCreationErrorZ_clone_ptr(LDKCResult_PrivateRouteCreationErrorZ *NONNULL_PTR arg) {
        LDKCResult_PrivateRouteCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PrivateRouteCreationErrorZ), "LDKCResult_PrivateRouteCreationErrorZ");
        *ret_conv = CResult_PrivateRouteCreationErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PrivateRouteCreationErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_PrivateRouteCreationErrorZ* arg_conv = (LDKCResult_PrivateRouteCreationErrorZ*)(arg & ~1);
+       LDKCResult_PrivateRouteCreationErrorZ* arg_conv = (LDKCResult_PrivateRouteCreationErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_PrivateRouteCreationErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PrivateRouteCreationErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_PrivateRouteCreationErrorZ* orig_conv = (LDKCResult_PrivateRouteCreationErrorZ*)(orig & ~1);
+       LDKCResult_PrivateRouteCreationErrorZ* orig_conv = (LDKCResult_PrivateRouteCreationErrorZ*)untag_ptr(orig);
        LDKCResult_PrivateRouteCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PrivateRouteCreationErrorZ), "LDKCResult_PrivateRouteCreationErrorZ");
        *ret_conv = CResult_PrivateRouteCreationErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1StringErrorZ_1ok(JNIEnv *env, jclass clz, jstring o) {
        LDKStr o_conv = java_to_owned_str(env, o);
        LDKCResult_StringErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_StringErrorZ), "LDKCResult_StringErrorZ");
        *ret_conv = CResult_StringErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1StringErrorZ_1err(JNIEnv *env, jclass clz, jclass e) {
        LDKSecp256k1Error e_conv = LDKSecp256k1Error_from_java(env, e);
        LDKCResult_StringErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_StringErrorZ), "LDKCResult_StringErrorZ");
        *ret_conv = CResult_StringErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1StringErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_StringErrorZ* o_conv = (LDKCResult_StringErrorZ*)(o & ~1);
+       LDKCResult_StringErrorZ* o_conv = (LDKCResult_StringErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_StringErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1StringErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_StringErrorZ _res_conv = *(LDKCResult_StringErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_StringErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_StringErrorZ_clone_ptr(LDKCResult_StringErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_StringErrorZ_clone_ptr(LDKCResult_StringErrorZ *NONNULL_PTR arg) {
        LDKCResult_StringErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_StringErrorZ), "LDKCResult_StringErrorZ");
        *ret_conv = CResult_StringErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1StringErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_StringErrorZ* arg_conv = (LDKCResult_StringErrorZ*)(arg & ~1);
+       LDKCResult_StringErrorZ* arg_conv = (LDKCResult_StringErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_StringErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1StringErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_StringErrorZ* orig_conv = (LDKCResult_StringErrorZ*)(orig & ~1);
+       LDKCResult_StringErrorZ* orig_conv = (LDKCResult_StringErrorZ*)untag_ptr(orig);
        LDKCResult_StringErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_StringErrorZ), "LDKCResult_StringErrorZ");
        *ret_conv = CResult_StringErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelMonitorUpdateDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKChannelMonitorUpdate o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = ChannelMonitorUpdate_clone(&o_conv);
        LDKCResult_ChannelMonitorUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelMonitorUpdateDecodeErrorZ), "LDKCResult_ChannelMonitorUpdateDecodeErrorZ");
        *ret_conv = CResult_ChannelMonitorUpdateDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelMonitorUpdateDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ChannelMonitorUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelMonitorUpdateDecodeErrorZ), "LDKCResult_ChannelMonitorUpdateDecodeErrorZ");
        *ret_conv = CResult_ChannelMonitorUpdateDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelMonitorUpdateDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_ChannelMonitorUpdateDecodeErrorZ* o_conv = (LDKCResult_ChannelMonitorUpdateDecodeErrorZ*)(o & ~1);
+       LDKCResult_ChannelMonitorUpdateDecodeErrorZ* o_conv = (LDKCResult_ChannelMonitorUpdateDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_ChannelMonitorUpdateDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelMonitorUpdateDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ChannelMonitorUpdateDecodeErrorZ _res_conv = *(LDKCResult_ChannelMonitorUpdateDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_ChannelMonitorUpdateDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_ChannelMonitorUpdateDecodeErrorZ_clone_ptr(LDKCResult_ChannelMonitorUpdateDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_ChannelMonitorUpdateDecodeErrorZ_clone_ptr(LDKCResult_ChannelMonitorUpdateDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ChannelMonitorUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelMonitorUpdateDecodeErrorZ), "LDKCResult_ChannelMonitorUpdateDecodeErrorZ");
        *ret_conv = CResult_ChannelMonitorUpdateDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelMonitorUpdateDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_ChannelMonitorUpdateDecodeErrorZ* arg_conv = (LDKCResult_ChannelMonitorUpdateDecodeErrorZ*)(arg & ~1);
+       LDKCResult_ChannelMonitorUpdateDecodeErrorZ* arg_conv = (LDKCResult_ChannelMonitorUpdateDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_ChannelMonitorUpdateDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelMonitorUpdateDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_ChannelMonitorUpdateDecodeErrorZ* orig_conv = (LDKCResult_ChannelMonitorUpdateDecodeErrorZ*)(orig & ~1);
+       LDKCResult_ChannelMonitorUpdateDecodeErrorZ* orig_conv = (LDKCResult_ChannelMonitorUpdateDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_ChannelMonitorUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelMonitorUpdateDecodeErrorZ), "LDKCResult_ChannelMonitorUpdateDecodeErrorZ");
        *ret_conv = CResult_ChannelMonitorUpdateDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1MonitorEventZ_1some(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKMonitorEvent o_conv = *(LDKMonitorEvent*)(o_ptr);
-       o_conv = MonitorEvent_clone((LDKMonitorEvent*)(((uintptr_t)o) & ~1));
+       o_conv = MonitorEvent_clone((LDKMonitorEvent*)untag_ptr(o));
        LDKCOption_MonitorEventZ *ret_copy = MALLOC(sizeof(LDKCOption_MonitorEventZ), "LDKCOption_MonitorEventZ");
        *ret_copy = COption_MonitorEventZ_some(o_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1MonitorEventZ_1none(JNIEnv *env, jclass clz) {
        LDKCOption_MonitorEventZ *ret_copy = MALLOC(sizeof(LDKCOption_MonitorEventZ), "LDKCOption_MonitorEventZ");
        *ret_copy = COption_MonitorEventZ_none();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1MonitorEventZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_MonitorEventZ _res_conv = *(LDKCOption_MonitorEventZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        COption_MonitorEventZ_free(_res_conv);
 }
 
-static inline uintptr_t COption_MonitorEventZ_clone_ptr(LDKCOption_MonitorEventZ *NONNULL_PTR arg) {
+static inline uint64_t COption_MonitorEventZ_clone_ptr(LDKCOption_MonitorEventZ *NONNULL_PTR arg) {
        LDKCOption_MonitorEventZ *ret_copy = MALLOC(sizeof(LDKCOption_MonitorEventZ), "LDKCOption_MonitorEventZ");
        *ret_copy = COption_MonitorEventZ_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1MonitorEventZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCOption_MonitorEventZ* arg_conv = (LDKCOption_MonitorEventZ*)arg;
+       LDKCOption_MonitorEventZ* arg_conv = (LDKCOption_MonitorEventZ*)untag_ptr(arg);
        int64_t ret_conv = COption_MonitorEventZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1MonitorEventZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCOption_MonitorEventZ* orig_conv = (LDKCOption_MonitorEventZ*)orig;
+       LDKCOption_MonitorEventZ* orig_conv = (LDKCOption_MonitorEventZ*)untag_ptr(orig);
        LDKCOption_MonitorEventZ *ret_copy = MALLOC(sizeof(LDKCOption_MonitorEventZ), "LDKCOption_MonitorEventZ");
        *ret_copy = COption_MonitorEventZ_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1MonitorEventZDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKCOption_MonitorEventZ o_conv = *(LDKCOption_MonitorEventZ*)(o_ptr);
-       o_conv = COption_MonitorEventZ_clone((LDKCOption_MonitorEventZ*)(((uintptr_t)o) & ~1));
+       o_conv = COption_MonitorEventZ_clone((LDKCOption_MonitorEventZ*)untag_ptr(o));
        LDKCResult_COption_MonitorEventZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_MonitorEventZDecodeErrorZ), "LDKCResult_COption_MonitorEventZDecodeErrorZ");
        *ret_conv = CResult_COption_MonitorEventZDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1MonitorEventZDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_COption_MonitorEventZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_MonitorEventZDecodeErrorZ), "LDKCResult_COption_MonitorEventZDecodeErrorZ");
        *ret_conv = CResult_COption_MonitorEventZDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1MonitorEventZDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_COption_MonitorEventZDecodeErrorZ* o_conv = (LDKCResult_COption_MonitorEventZDecodeErrorZ*)(o & ~1);
+       LDKCResult_COption_MonitorEventZDecodeErrorZ* o_conv = (LDKCResult_COption_MonitorEventZDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_COption_MonitorEventZDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1MonitorEventZDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_COption_MonitorEventZDecodeErrorZ _res_conv = *(LDKCResult_COption_MonitorEventZDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_COption_MonitorEventZDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_COption_MonitorEventZDecodeErrorZ_clone_ptr(LDKCResult_COption_MonitorEventZDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_COption_MonitorEventZDecodeErrorZ_clone_ptr(LDKCResult_COption_MonitorEventZDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_COption_MonitorEventZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_MonitorEventZDecodeErrorZ), "LDKCResult_COption_MonitorEventZDecodeErrorZ");
        *ret_conv = CResult_COption_MonitorEventZDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1MonitorEventZDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_COption_MonitorEventZDecodeErrorZ* arg_conv = (LDKCResult_COption_MonitorEventZDecodeErrorZ*)(arg & ~1);
+       LDKCResult_COption_MonitorEventZDecodeErrorZ* arg_conv = (LDKCResult_COption_MonitorEventZDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_COption_MonitorEventZDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1MonitorEventZDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_COption_MonitorEventZDecodeErrorZ* orig_conv = (LDKCResult_COption_MonitorEventZDecodeErrorZ*)(orig & ~1);
+       LDKCResult_COption_MonitorEventZDecodeErrorZ* orig_conv = (LDKCResult_COption_MonitorEventZDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_COption_MonitorEventZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_MonitorEventZDecodeErrorZ), "LDKCResult_COption_MonitorEventZDecodeErrorZ");
        *ret_conv = CResult_COption_MonitorEventZDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1HTLCUpdateDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKHTLCUpdate o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = HTLCUpdate_clone(&o_conv);
        LDKCResult_HTLCUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HTLCUpdateDecodeErrorZ), "LDKCResult_HTLCUpdateDecodeErrorZ");
        *ret_conv = CResult_HTLCUpdateDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1HTLCUpdateDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_HTLCUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HTLCUpdateDecodeErrorZ), "LDKCResult_HTLCUpdateDecodeErrorZ");
        *ret_conv = CResult_HTLCUpdateDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1HTLCUpdateDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_HTLCUpdateDecodeErrorZ* o_conv = (LDKCResult_HTLCUpdateDecodeErrorZ*)(o & ~1);
+       LDKCResult_HTLCUpdateDecodeErrorZ* o_conv = (LDKCResult_HTLCUpdateDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_HTLCUpdateDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1HTLCUpdateDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_HTLCUpdateDecodeErrorZ _res_conv = *(LDKCResult_HTLCUpdateDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_HTLCUpdateDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_HTLCUpdateDecodeErrorZ_clone_ptr(LDKCResult_HTLCUpdateDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_HTLCUpdateDecodeErrorZ_clone_ptr(LDKCResult_HTLCUpdateDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_HTLCUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HTLCUpdateDecodeErrorZ), "LDKCResult_HTLCUpdateDecodeErrorZ");
        *ret_conv = CResult_HTLCUpdateDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1HTLCUpdateDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_HTLCUpdateDecodeErrorZ* arg_conv = (LDKCResult_HTLCUpdateDecodeErrorZ*)(arg & ~1);
+       LDKCResult_HTLCUpdateDecodeErrorZ* arg_conv = (LDKCResult_HTLCUpdateDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_HTLCUpdateDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1HTLCUpdateDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_HTLCUpdateDecodeErrorZ* orig_conv = (LDKCResult_HTLCUpdateDecodeErrorZ*)(orig & ~1);
+       LDKCResult_HTLCUpdateDecodeErrorZ* orig_conv = (LDKCResult_HTLCUpdateDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_HTLCUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HTLCUpdateDecodeErrorZ), "LDKCResult_HTLCUpdateDecodeErrorZ");
        *ret_conv = CResult_HTLCUpdateDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
-static inline uintptr_t C2Tuple_OutPointScriptZ_clone_ptr(LDKC2Tuple_OutPointScriptZ *NONNULL_PTR arg) {
+static inline uint64_t C2Tuple_OutPointScriptZ_clone_ptr(LDKC2Tuple_OutPointScriptZ *NONNULL_PTR arg) {
        LDKC2Tuple_OutPointScriptZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_OutPointScriptZ), "LDKC2Tuple_OutPointScriptZ");
        *ret_conv = C2Tuple_OutPointScriptZ_clone(arg);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1OutPointScriptZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKC2Tuple_OutPointScriptZ* arg_conv = (LDKC2Tuple_OutPointScriptZ*)(arg & ~1);
+       LDKC2Tuple_OutPointScriptZ* arg_conv = (LDKC2Tuple_OutPointScriptZ*)untag_ptr(arg);
        int64_t ret_conv = C2Tuple_OutPointScriptZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1OutPointScriptZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKC2Tuple_OutPointScriptZ* orig_conv = (LDKC2Tuple_OutPointScriptZ*)(orig & ~1);
+       LDKC2Tuple_OutPointScriptZ* orig_conv = (LDKC2Tuple_OutPointScriptZ*)untag_ptr(orig);
        LDKC2Tuple_OutPointScriptZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_OutPointScriptZ), "LDKC2Tuple_OutPointScriptZ");
        *ret_conv = C2Tuple_OutPointScriptZ_clone(orig_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1OutPointScriptZ_1new(JNIEnv *env, jclass clz, int64_t a, int8_tArray b) {
        LDKOutPoint a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = (a & 1) || (a == 0);
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
        a_conv = OutPoint_clone(&a_conv);
        LDKCVec_u8Z b_ref;
@@ -21496,34 +20205,34 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1OutPointScriptZ_1n
        (*env)->GetByteArrayRegion(env, b, 0, b_ref.datalen, b_ref.data);
        LDKC2Tuple_OutPointScriptZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_OutPointScriptZ), "LDKC2Tuple_OutPointScriptZ");
        *ret_conv = C2Tuple_OutPointScriptZ_new(a_conv, b_ref);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C2Tuple_1OutPointScriptZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_OutPointScriptZ _res_conv = *(LDKC2Tuple_OutPointScriptZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        C2Tuple_OutPointScriptZ_free(_res_conv);
 }
 
-static inline uintptr_t C2Tuple_u32ScriptZ_clone_ptr(LDKC2Tuple_u32ScriptZ *NONNULL_PTR arg) {
+static inline uint64_t C2Tuple_u32ScriptZ_clone_ptr(LDKC2Tuple_u32ScriptZ *NONNULL_PTR arg) {
        LDKC2Tuple_u32ScriptZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_u32ScriptZ), "LDKC2Tuple_u32ScriptZ");
        *ret_conv = C2Tuple_u32ScriptZ_clone(arg);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u32ScriptZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKC2Tuple_u32ScriptZ* arg_conv = (LDKC2Tuple_u32ScriptZ*)(arg & ~1);
+       LDKC2Tuple_u32ScriptZ* arg_conv = (LDKC2Tuple_u32ScriptZ*)untag_ptr(arg);
        int64_t ret_conv = C2Tuple_u32ScriptZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u32ScriptZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKC2Tuple_u32ScriptZ* orig_conv = (LDKC2Tuple_u32ScriptZ*)(orig & ~1);
+       LDKC2Tuple_u32ScriptZ* orig_conv = (LDKC2Tuple_u32ScriptZ*)untag_ptr(orig);
        LDKC2Tuple_u32ScriptZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_u32ScriptZ), "LDKC2Tuple_u32ScriptZ");
        *ret_conv = C2Tuple_u32ScriptZ_clone(orig_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u32ScriptZ_1new(JNIEnv *env, jclass clz, int32_t a, int8_tArray b) {
@@ -21533,15 +20242,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u32ScriptZ_1new(JN
        (*env)->GetByteArrayRegion(env, b, 0, b_ref.datalen, b_ref.data);
        LDKC2Tuple_u32ScriptZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_u32ScriptZ), "LDKC2Tuple_u32ScriptZ");
        *ret_conv = C2Tuple_u32ScriptZ_new(a, b_ref);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u32ScriptZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_u32ScriptZ _res_conv = *(LDKC2Tuple_u32ScriptZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        C2Tuple_u32ScriptZ_free(_res_conv);
 }
 
@@ -21555,32 +20264,32 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1C2Tuple_1u32ScriptZZ_1fr
        int64_t* _res_vals = (*env)->GetLongArrayElements (env, _res, NULL);
        for (size_t v = 0; v < _res_constr.datalen; v++) {
                int64_t _res_conv_21 = _res_vals[v];
-               void* _res_conv_21_ptr = (void*)(((uintptr_t)_res_conv_21) & ~1);
+               void* _res_conv_21_ptr = untag_ptr(_res_conv_21);
                CHECK_ACCESS(_res_conv_21_ptr);
                LDKC2Tuple_u32ScriptZ _res_conv_21_conv = *(LDKC2Tuple_u32ScriptZ*)(_res_conv_21_ptr);
-               FREE((void*)_res_conv_21);
+               FREE(untag_ptr(_res_conv_21));
                _res_constr.data[v] = _res_conv_21_conv;
        }
        (*env)->ReleaseLongArrayElements(env, _res, _res_vals, 0);
        CVec_C2Tuple_u32ScriptZZ_free(_res_constr);
 }
 
-static inline uintptr_t C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ_clone_ptr(LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ *NONNULL_PTR arg) {
+static inline uint64_t C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ_clone_ptr(LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ *NONNULL_PTR arg) {
        LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ), "LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ");
        *ret_conv = C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ_clone(arg);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1TxidCVec_1C2Tuple_1u32ScriptZZZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ* arg_conv = (LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ*)(arg & ~1);
+       LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ* arg_conv = (LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ*)untag_ptr(arg);
        int64_t ret_conv = C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1TxidCVec_1C2Tuple_1u32ScriptZZZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ* orig_conv = (LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ*)(orig & ~1);
+       LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ* orig_conv = (LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ*)untag_ptr(orig);
        LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ), "LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ");
        *ret_conv = C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ_clone(orig_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1TxidCVec_1C2Tuple_1u32ScriptZZZ_1new(JNIEnv *env, jclass clz, int8_tArray a, int64_tArray b) {
@@ -21596,24 +20305,24 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1TxidCVec_1C2Tuple_
        int64_t* b_vals = (*env)->GetLongArrayElements (env, b, NULL);
        for (size_t v = 0; v < b_constr.datalen; v++) {
                int64_t b_conv_21 = b_vals[v];
-               void* b_conv_21_ptr = (void*)(((uintptr_t)b_conv_21) & ~1);
+               void* b_conv_21_ptr = untag_ptr(b_conv_21);
                CHECK_ACCESS(b_conv_21_ptr);
                LDKC2Tuple_u32ScriptZ b_conv_21_conv = *(LDKC2Tuple_u32ScriptZ*)(b_conv_21_ptr);
-               b_conv_21_conv = C2Tuple_u32ScriptZ_clone((LDKC2Tuple_u32ScriptZ*)(((uintptr_t)b_conv_21) & ~1));
+               b_conv_21_conv = C2Tuple_u32ScriptZ_clone((LDKC2Tuple_u32ScriptZ*)untag_ptr(b_conv_21));
                b_constr.data[v] = b_conv_21_conv;
        }
        (*env)->ReleaseLongArrayElements(env, b, b_vals, 0);
        LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ), "LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ");
        *ret_conv = C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ_new(a_ref, b_constr);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C2Tuple_1TxidCVec_1C2Tuple_1u32ScriptZZZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ _res_conv = *(LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ_free(_res_conv);
 }
 
@@ -21627,10 +20336,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1C2Tuple_1TxidCVec_1C2Tup
        int64_t* _res_vals = (*env)->GetLongArrayElements (env, _res, NULL);
        for (size_t o = 0; o < _res_constr.datalen; o++) {
                int64_t _res_conv_40 = _res_vals[o];
-               void* _res_conv_40_ptr = (void*)(((uintptr_t)_res_conv_40) & ~1);
+               void* _res_conv_40_ptr = untag_ptr(_res_conv_40);
                CHECK_ACCESS(_res_conv_40_ptr);
                LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ _res_conv_40_conv = *(LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ*)(_res_conv_40_ptr);
-               FREE((void*)_res_conv_40);
+               FREE(untag_ptr(_res_conv_40));
                _res_constr.data[o] = _res_conv_40_conv;
        }
        (*env)->ReleaseLongArrayElements(env, _res, _res_vals, 0);
@@ -21647,10 +20356,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1EventZ_1free(JNIEnv *env
        int64_t* _res_vals = (*env)->GetLongArrayElements (env, _res, NULL);
        for (size_t h = 0; h < _res_constr.datalen; h++) {
                int64_t _res_conv_7 = _res_vals[h];
-               void* _res_conv_7_ptr = (void*)(((uintptr_t)_res_conv_7) & ~1);
+               void* _res_conv_7_ptr = untag_ptr(_res_conv_7);
                CHECK_ACCESS(_res_conv_7_ptr);
                LDKEvent _res_conv_7_conv = *(LDKEvent*)(_res_conv_7_ptr);
-               FREE((void*)_res_conv_7);
+               FREE(untag_ptr(_res_conv_7));
                _res_constr.data[h] = _res_conv_7_conv;
        }
        (*env)->ReleaseLongArrayElements(env, _res, _res_vals, 0);
@@ -21676,40 +20385,40 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1TransactionZ_1free(JNIEn
        CVec_TransactionZ_free(_res_constr);
 }
 
-static inline uintptr_t C2Tuple_u32TxOutZ_clone_ptr(LDKC2Tuple_u32TxOutZ *NONNULL_PTR arg) {
+static inline uint64_t C2Tuple_u32TxOutZ_clone_ptr(LDKC2Tuple_u32TxOutZ *NONNULL_PTR arg) {
        LDKC2Tuple_u32TxOutZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_u32TxOutZ), "LDKC2Tuple_u32TxOutZ");
        *ret_conv = C2Tuple_u32TxOutZ_clone(arg);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u32TxOutZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKC2Tuple_u32TxOutZ* arg_conv = (LDKC2Tuple_u32TxOutZ*)(arg & ~1);
+       LDKC2Tuple_u32TxOutZ* arg_conv = (LDKC2Tuple_u32TxOutZ*)untag_ptr(arg);
        int64_t ret_conv = C2Tuple_u32TxOutZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u32TxOutZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKC2Tuple_u32TxOutZ* orig_conv = (LDKC2Tuple_u32TxOutZ*)(orig & ~1);
+       LDKC2Tuple_u32TxOutZ* orig_conv = (LDKC2Tuple_u32TxOutZ*)untag_ptr(orig);
        LDKC2Tuple_u32TxOutZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_u32TxOutZ), "LDKC2Tuple_u32TxOutZ");
        *ret_conv = C2Tuple_u32TxOutZ_clone(orig_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u32TxOutZ_1new(JNIEnv *env, jclass clz, int32_t a, int64_t b) {
-       void* b_ptr = (void*)(((uintptr_t)b) & ~1);
+       void* b_ptr = untag_ptr(b);
        CHECK_ACCESS(b_ptr);
        LDKTxOut b_conv = *(LDKTxOut*)(b_ptr);
-       b_conv = TxOut_clone((LDKTxOut*)(((uintptr_t)b) & ~1));
+       b_conv = TxOut_clone((LDKTxOut*)untag_ptr(b));
        LDKC2Tuple_u32TxOutZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_u32TxOutZ), "LDKC2Tuple_u32TxOutZ");
        *ret_conv = C2Tuple_u32TxOutZ_new(a, b_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u32TxOutZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_u32TxOutZ _res_conv = *(LDKC2Tuple_u32TxOutZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        C2Tuple_u32TxOutZ_free(_res_conv);
 }
 
@@ -21723,32 +20432,32 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1C2Tuple_1u32TxOutZZ_1fre
        int64_t* _res_vals = (*env)->GetLongArrayElements (env, _res, NULL);
        for (size_t u = 0; u < _res_constr.datalen; u++) {
                int64_t _res_conv_20 = _res_vals[u];
-               void* _res_conv_20_ptr = (void*)(((uintptr_t)_res_conv_20) & ~1);
+               void* _res_conv_20_ptr = untag_ptr(_res_conv_20);
                CHECK_ACCESS(_res_conv_20_ptr);
                LDKC2Tuple_u32TxOutZ _res_conv_20_conv = *(LDKC2Tuple_u32TxOutZ*)(_res_conv_20_ptr);
-               FREE((void*)_res_conv_20);
+               FREE(untag_ptr(_res_conv_20));
                _res_constr.data[u] = _res_conv_20_conv;
        }
        (*env)->ReleaseLongArrayElements(env, _res, _res_vals, 0);
        CVec_C2Tuple_u32TxOutZZ_free(_res_constr);
 }
 
-static inline uintptr_t C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_clone_ptr(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ *NONNULL_PTR arg) {
+static inline uint64_t C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_clone_ptr(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ *NONNULL_PTR arg) {
        LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ), "LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ");
        *ret_conv = C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_clone(arg);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1TxidCVec_1C2Tuple_1u32TxOutZZZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* arg_conv = (LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ*)(arg & ~1);
+       LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* arg_conv = (LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ*)untag_ptr(arg);
        int64_t ret_conv = C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1TxidCVec_1C2Tuple_1u32TxOutZZZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* orig_conv = (LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ*)(orig & ~1);
+       LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* orig_conv = (LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ*)untag_ptr(orig);
        LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ), "LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ");
        *ret_conv = C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_clone(orig_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1TxidCVec_1C2Tuple_1u32TxOutZZZ_1new(JNIEnv *env, jclass clz, int8_tArray a, int64_tArray b) {
@@ -21764,24 +20473,24 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1TxidCVec_1C2Tuple_
        int64_t* b_vals = (*env)->GetLongArrayElements (env, b, NULL);
        for (size_t u = 0; u < b_constr.datalen; u++) {
                int64_t b_conv_20 = b_vals[u];
-               void* b_conv_20_ptr = (void*)(((uintptr_t)b_conv_20) & ~1);
+               void* b_conv_20_ptr = untag_ptr(b_conv_20);
                CHECK_ACCESS(b_conv_20_ptr);
                LDKC2Tuple_u32TxOutZ b_conv_20_conv = *(LDKC2Tuple_u32TxOutZ*)(b_conv_20_ptr);
-               b_conv_20_conv = C2Tuple_u32TxOutZ_clone((LDKC2Tuple_u32TxOutZ*)(((uintptr_t)b_conv_20) & ~1));
+               b_conv_20_conv = C2Tuple_u32TxOutZ_clone((LDKC2Tuple_u32TxOutZ*)untag_ptr(b_conv_20));
                b_constr.data[u] = b_conv_20_conv;
        }
        (*env)->ReleaseLongArrayElements(env, b, b_vals, 0);
        LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ), "LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ");
        *ret_conv = C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_new(a_ref, b_constr);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C2Tuple_1TxidCVec_1C2Tuple_1u32TxOutZZZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ _res_conv = *(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_free(_res_conv);
 }
 
@@ -21795,10 +20504,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1C2Tuple_1TxidCVec_1C2Tup
        int64_t* _res_vals = (*env)->GetLongArrayElements (env, _res, NULL);
        for (size_t n = 0; n < _res_constr.datalen; n++) {
                int64_t _res_conv_39 = _res_vals[n];
-               void* _res_conv_39_ptr = (void*)(((uintptr_t)_res_conv_39) & ~1);
+               void* _res_conv_39_ptr = untag_ptr(_res_conv_39);
                CHECK_ACCESS(_res_conv_39_ptr);
                LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ _res_conv_39_conv = *(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ*)(_res_conv_39_ptr);
-               FREE((void*)_res_conv_39);
+               FREE(untag_ptr(_res_conv_39));
                _res_constr.data[n] = _res_conv_39_conv;
        }
        (*env)->ReleaseLongArrayElements(env, _res, _res_vals, 0);
@@ -21815,10 +20524,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1BalanceZ_1free(JNIEnv *e
        int64_t* _res_vals = (*env)->GetLongArrayElements (env, _res, NULL);
        for (size_t j = 0; j < _res_constr.datalen; j++) {
                int64_t _res_conv_9 = _res_vals[j];
-               void* _res_conv_9_ptr = (void*)(((uintptr_t)_res_conv_9) & ~1);
+               void* _res_conv_9_ptr = untag_ptr(_res_conv_9);
                CHECK_ACCESS(_res_conv_9_ptr);
                LDKBalance _res_conv_9_conv = *(LDKBalance*)(_res_conv_9_ptr);
-               FREE((void*)_res_conv_9);
+               FREE(untag_ptr(_res_conv_9));
                _res_constr.data[j] = _res_conv_9_conv;
        }
        (*env)->ReleaseLongArrayElements(env, _res, _res_vals, 0);
@@ -21826,82 +20535,82 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1BalanceZ_1free(JNIEnv *e
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1BlockHashChannelMonitorZDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKC2Tuple_BlockHashChannelMonitorZ o_conv = *(LDKC2Tuple_BlockHashChannelMonitorZ*)(o_ptr);
-       o_conv = C2Tuple_BlockHashChannelMonitorZ_clone((LDKC2Tuple_BlockHashChannelMonitorZ*)(((uintptr_t)o) & ~1));
+       o_conv = C2Tuple_BlockHashChannelMonitorZ_clone((LDKC2Tuple_BlockHashChannelMonitorZ*)untag_ptr(o));
        LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ), "LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ");
        *ret_conv = CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1BlockHashChannelMonitorZDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ), "LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ");
        *ret_conv = CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1BlockHashChannelMonitorZDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* o_conv = (LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ*)(o & ~1);
+       LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* o_conv = (LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1BlockHashChannelMonitorZDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ _res_conv = *(LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_clone_ptr(LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_clone_ptr(LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ), "LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ");
        *ret_conv = CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1BlockHashChannelMonitorZDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* arg_conv = (LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ*)(arg & ~1);
+       LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* arg_conv = (LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1BlockHashChannelMonitorZDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* orig_conv = (LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ*)(orig & ~1);
+       LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* orig_conv = (LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ), "LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ");
        *ret_conv = CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
-static inline uintptr_t C2Tuple_PublicKeyTypeZ_clone_ptr(LDKC2Tuple_PublicKeyTypeZ *NONNULL_PTR arg) {
+static inline uint64_t C2Tuple_PublicKeyTypeZ_clone_ptr(LDKC2Tuple_PublicKeyTypeZ *NONNULL_PTR arg) {
        LDKC2Tuple_PublicKeyTypeZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PublicKeyTypeZ), "LDKC2Tuple_PublicKeyTypeZ");
        *ret_conv = C2Tuple_PublicKeyTypeZ_clone(arg);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PublicKeyTypeZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKC2Tuple_PublicKeyTypeZ* arg_conv = (LDKC2Tuple_PublicKeyTypeZ*)(arg & ~1);
+       LDKC2Tuple_PublicKeyTypeZ* arg_conv = (LDKC2Tuple_PublicKeyTypeZ*)untag_ptr(arg);
        int64_t ret_conv = C2Tuple_PublicKeyTypeZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PublicKeyTypeZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKC2Tuple_PublicKeyTypeZ* orig_conv = (LDKC2Tuple_PublicKeyTypeZ*)(orig & ~1);
+       LDKC2Tuple_PublicKeyTypeZ* orig_conv = (LDKC2Tuple_PublicKeyTypeZ*)untag_ptr(orig);
        LDKC2Tuple_PublicKeyTypeZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PublicKeyTypeZ), "LDKC2Tuple_PublicKeyTypeZ");
        *ret_conv = C2Tuple_PublicKeyTypeZ_clone(orig_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PublicKeyTypeZ_1new(JNIEnv *env, jclass clz, int8_tArray a, int64_t b) {
        LDKPublicKey a_ref;
        CHECK((*env)->GetArrayLength(env, a) == 33);
        (*env)->GetByteArrayRegion(env, a, 0, 33, a_ref.compressed_form);
-       void* b_ptr = (void*)(((uintptr_t)b) & ~1);
+       void* b_ptr = untag_ptr(b);
        CHECK_ACCESS(b_ptr);
        LDKType b_conv = *(LDKType*)(b_ptr);
        if (b_conv.free == LDKType_JCalls_free) {
@@ -21910,15 +20619,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PublicKeyTypeZ_1ne
        }
        LDKC2Tuple_PublicKeyTypeZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PublicKeyTypeZ), "LDKC2Tuple_PublicKeyTypeZ");
        *ret_conv = C2Tuple_PublicKeyTypeZ_new(a_ref, b_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PublicKeyTypeZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKC2Tuple_PublicKeyTypeZ _res_conv = *(LDKC2Tuple_PublicKeyTypeZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        C2Tuple_PublicKeyTypeZ_free(_res_conv);
 }
 
@@ -21932,10 +20641,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1C2Tuple_1PublicKeyTypeZZ
        int64_t* _res_vals = (*env)->GetLongArrayElements (env, _res, NULL);
        for (size_t z = 0; z < _res_constr.datalen; z++) {
                int64_t _res_conv_25 = _res_vals[z];
-               void* _res_conv_25_ptr = (void*)(((uintptr_t)_res_conv_25) & ~1);
+               void* _res_conv_25_ptr = untag_ptr(_res_conv_25);
                CHECK_ACCESS(_res_conv_25_ptr);
                LDKC2Tuple_PublicKeyTypeZ _res_conv_25_conv = *(LDKC2Tuple_PublicKeyTypeZ*)(_res_conv_25_ptr);
-               FREE((void*)_res_conv_25);
+               FREE(untag_ptr(_res_conv_25));
                _res_constr.data[z] = _res_conv_25_conv;
        }
        (*env)->ReleaseLongArrayElements(env, _res, _res_vals, 0);
@@ -21943,49 +20652,49 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1C2Tuple_1PublicKeyTypeZZ
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1NetAddressZ_1some(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKNetAddress o_conv = *(LDKNetAddress*)(o_ptr);
-       o_conv = NetAddress_clone((LDKNetAddress*)(((uintptr_t)o) & ~1));
+       o_conv = NetAddress_clone((LDKNetAddress*)untag_ptr(o));
        LDKCOption_NetAddressZ *ret_copy = MALLOC(sizeof(LDKCOption_NetAddressZ), "LDKCOption_NetAddressZ");
        *ret_copy = COption_NetAddressZ_some(o_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1NetAddressZ_1none(JNIEnv *env, jclass clz) {
        LDKCOption_NetAddressZ *ret_copy = MALLOC(sizeof(LDKCOption_NetAddressZ), "LDKCOption_NetAddressZ");
        *ret_copy = COption_NetAddressZ_none();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1NetAddressZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_NetAddressZ _res_conv = *(LDKCOption_NetAddressZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        COption_NetAddressZ_free(_res_conv);
 }
 
-static inline uintptr_t COption_NetAddressZ_clone_ptr(LDKCOption_NetAddressZ *NONNULL_PTR arg) {
+static inline uint64_t COption_NetAddressZ_clone_ptr(LDKCOption_NetAddressZ *NONNULL_PTR arg) {
        LDKCOption_NetAddressZ *ret_copy = MALLOC(sizeof(LDKCOption_NetAddressZ), "LDKCOption_NetAddressZ");
        *ret_copy = COption_NetAddressZ_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1NetAddressZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCOption_NetAddressZ* arg_conv = (LDKCOption_NetAddressZ*)arg;
+       LDKCOption_NetAddressZ* arg_conv = (LDKCOption_NetAddressZ*)untag_ptr(arg);
        int64_t ret_conv = COption_NetAddressZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1NetAddressZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCOption_NetAddressZ* orig_conv = (LDKCOption_NetAddressZ*)orig;
+       LDKCOption_NetAddressZ* orig_conv = (LDKCOption_NetAddressZ*)untag_ptr(orig);
        LDKCOption_NetAddressZ *ret_copy = MALLOC(sizeof(LDKCOption_NetAddressZ), "LDKCOption_NetAddressZ");
        *ret_copy = COption_NetAddressZ_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -21996,236 +20705,236 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1u8ZPeerHandl
        (*env)->GetByteArrayRegion(env, o, 0, o_ref.datalen, o_ref.data);
        LDKCResult_CVec_u8ZPeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_u8ZPeerHandleErrorZ), "LDKCResult_CVec_u8ZPeerHandleErrorZ");
        *ret_conv = CResult_CVec_u8ZPeerHandleErrorZ_ok(o_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1u8ZPeerHandleErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKPeerHandleError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = PeerHandleError_clone(&e_conv);
        LDKCResult_CVec_u8ZPeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_u8ZPeerHandleErrorZ), "LDKCResult_CVec_u8ZPeerHandleErrorZ");
        *ret_conv = CResult_CVec_u8ZPeerHandleErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1u8ZPeerHandleErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_CVec_u8ZPeerHandleErrorZ* o_conv = (LDKCResult_CVec_u8ZPeerHandleErrorZ*)(o & ~1);
+       LDKCResult_CVec_u8ZPeerHandleErrorZ* o_conv = (LDKCResult_CVec_u8ZPeerHandleErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_CVec_u8ZPeerHandleErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1u8ZPeerHandleErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_CVec_u8ZPeerHandleErrorZ _res_conv = *(LDKCResult_CVec_u8ZPeerHandleErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_CVec_u8ZPeerHandleErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_CVec_u8ZPeerHandleErrorZ_clone_ptr(LDKCResult_CVec_u8ZPeerHandleErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_CVec_u8ZPeerHandleErrorZ_clone_ptr(LDKCResult_CVec_u8ZPeerHandleErrorZ *NONNULL_PTR arg) {
        LDKCResult_CVec_u8ZPeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_u8ZPeerHandleErrorZ), "LDKCResult_CVec_u8ZPeerHandleErrorZ");
        *ret_conv = CResult_CVec_u8ZPeerHandleErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1u8ZPeerHandleErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_CVec_u8ZPeerHandleErrorZ* arg_conv = (LDKCResult_CVec_u8ZPeerHandleErrorZ*)(arg & ~1);
+       LDKCResult_CVec_u8ZPeerHandleErrorZ* arg_conv = (LDKCResult_CVec_u8ZPeerHandleErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_CVec_u8ZPeerHandleErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1u8ZPeerHandleErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_CVec_u8ZPeerHandleErrorZ* orig_conv = (LDKCResult_CVec_u8ZPeerHandleErrorZ*)(orig & ~1);
+       LDKCResult_CVec_u8ZPeerHandleErrorZ* orig_conv = (LDKCResult_CVec_u8ZPeerHandleErrorZ*)untag_ptr(orig);
        LDKCResult_CVec_u8ZPeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_u8ZPeerHandleErrorZ), "LDKCResult_CVec_u8ZPeerHandleErrorZ");
        *ret_conv = CResult_CVec_u8ZPeerHandleErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NonePeerHandleErrorZ_1ok(JNIEnv *env, jclass clz) {
        LDKCResult_NonePeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePeerHandleErrorZ), "LDKCResult_NonePeerHandleErrorZ");
        *ret_conv = CResult_NonePeerHandleErrorZ_ok();
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NonePeerHandleErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKPeerHandleError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = PeerHandleError_clone(&e_conv);
        LDKCResult_NonePeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePeerHandleErrorZ), "LDKCResult_NonePeerHandleErrorZ");
        *ret_conv = CResult_NonePeerHandleErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1NonePeerHandleErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_NonePeerHandleErrorZ* o_conv = (LDKCResult_NonePeerHandleErrorZ*)(o & ~1);
+       LDKCResult_NonePeerHandleErrorZ* o_conv = (LDKCResult_NonePeerHandleErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_NonePeerHandleErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NonePeerHandleErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NonePeerHandleErrorZ _res_conv = *(LDKCResult_NonePeerHandleErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_NonePeerHandleErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_NonePeerHandleErrorZ_clone_ptr(LDKCResult_NonePeerHandleErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_NonePeerHandleErrorZ_clone_ptr(LDKCResult_NonePeerHandleErrorZ *NONNULL_PTR arg) {
        LDKCResult_NonePeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePeerHandleErrorZ), "LDKCResult_NonePeerHandleErrorZ");
        *ret_conv = CResult_NonePeerHandleErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NonePeerHandleErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_NonePeerHandleErrorZ* arg_conv = (LDKCResult_NonePeerHandleErrorZ*)(arg & ~1);
+       LDKCResult_NonePeerHandleErrorZ* arg_conv = (LDKCResult_NonePeerHandleErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_NonePeerHandleErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NonePeerHandleErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_NonePeerHandleErrorZ* orig_conv = (LDKCResult_NonePeerHandleErrorZ*)(orig & ~1);
+       LDKCResult_NonePeerHandleErrorZ* orig_conv = (LDKCResult_NonePeerHandleErrorZ*)untag_ptr(orig);
        LDKCResult_NonePeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePeerHandleErrorZ), "LDKCResult_NonePeerHandleErrorZ");
        *ret_conv = CResult_NonePeerHandleErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1boolPeerHandleErrorZ_1ok(JNIEnv *env, jclass clz, jboolean o) {
        LDKCResult_boolPeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_boolPeerHandleErrorZ), "LDKCResult_boolPeerHandleErrorZ");
        *ret_conv = CResult_boolPeerHandleErrorZ_ok(o);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1boolPeerHandleErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKPeerHandleError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = PeerHandleError_clone(&e_conv);
        LDKCResult_boolPeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_boolPeerHandleErrorZ), "LDKCResult_boolPeerHandleErrorZ");
        *ret_conv = CResult_boolPeerHandleErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1boolPeerHandleErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_boolPeerHandleErrorZ* o_conv = (LDKCResult_boolPeerHandleErrorZ*)(o & ~1);
+       LDKCResult_boolPeerHandleErrorZ* o_conv = (LDKCResult_boolPeerHandleErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_boolPeerHandleErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1boolPeerHandleErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_boolPeerHandleErrorZ _res_conv = *(LDKCResult_boolPeerHandleErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_boolPeerHandleErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_boolPeerHandleErrorZ_clone_ptr(LDKCResult_boolPeerHandleErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_boolPeerHandleErrorZ_clone_ptr(LDKCResult_boolPeerHandleErrorZ *NONNULL_PTR arg) {
        LDKCResult_boolPeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_boolPeerHandleErrorZ), "LDKCResult_boolPeerHandleErrorZ");
        *ret_conv = CResult_boolPeerHandleErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1boolPeerHandleErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_boolPeerHandleErrorZ* arg_conv = (LDKCResult_boolPeerHandleErrorZ*)(arg & ~1);
+       LDKCResult_boolPeerHandleErrorZ* arg_conv = (LDKCResult_boolPeerHandleErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_boolPeerHandleErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1boolPeerHandleErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_boolPeerHandleErrorZ* orig_conv = (LDKCResult_boolPeerHandleErrorZ*)(orig & ~1);
+       LDKCResult_boolPeerHandleErrorZ* orig_conv = (LDKCResult_boolPeerHandleErrorZ*)untag_ptr(orig);
        LDKCResult_boolPeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_boolPeerHandleErrorZ), "LDKCResult_boolPeerHandleErrorZ");
        *ret_conv = CResult_boolPeerHandleErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1u32GraphSyncErrorZ_1ok(JNIEnv *env, jclass clz, int32_t o) {
        LDKCResult_u32GraphSyncErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_u32GraphSyncErrorZ), "LDKCResult_u32GraphSyncErrorZ");
        *ret_conv = CResult_u32GraphSyncErrorZ_ok(o);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1u32GraphSyncErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
-       void* e_ptr = (void*)(((uintptr_t)e) & ~1);
+       void* e_ptr = untag_ptr(e);
        CHECK_ACCESS(e_ptr);
        LDKGraphSyncError e_conv = *(LDKGraphSyncError*)(e_ptr);
-       e_conv = GraphSyncError_clone((LDKGraphSyncError*)(((uintptr_t)e) & ~1));
+       e_conv = GraphSyncError_clone((LDKGraphSyncError*)untag_ptr(e));
        LDKCResult_u32GraphSyncErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_u32GraphSyncErrorZ), "LDKCResult_u32GraphSyncErrorZ");
        *ret_conv = CResult_u32GraphSyncErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1u32GraphSyncErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_u32GraphSyncErrorZ* o_conv = (LDKCResult_u32GraphSyncErrorZ*)(o & ~1);
+       LDKCResult_u32GraphSyncErrorZ* o_conv = (LDKCResult_u32GraphSyncErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_u32GraphSyncErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1u32GraphSyncErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_u32GraphSyncErrorZ _res_conv = *(LDKCResult_u32GraphSyncErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_u32GraphSyncErrorZ_free(_res_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NetAddressDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKNetAddress o_conv = *(LDKNetAddress*)(o_ptr);
-       o_conv = NetAddress_clone((LDKNetAddress*)(((uintptr_t)o) & ~1));
+       o_conv = NetAddress_clone((LDKNetAddress*)untag_ptr(o));
        LDKCResult_NetAddressDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NetAddressDecodeErrorZ), "LDKCResult_NetAddressDecodeErrorZ");
        *ret_conv = CResult_NetAddressDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NetAddressDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_NetAddressDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NetAddressDecodeErrorZ), "LDKCResult_NetAddressDecodeErrorZ");
        *ret_conv = CResult_NetAddressDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1NetAddressDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_NetAddressDecodeErrorZ* o_conv = (LDKCResult_NetAddressDecodeErrorZ*)(o & ~1);
+       LDKCResult_NetAddressDecodeErrorZ* o_conv = (LDKCResult_NetAddressDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_NetAddressDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NetAddressDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NetAddressDecodeErrorZ _res_conv = *(LDKCResult_NetAddressDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_NetAddressDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_NetAddressDecodeErrorZ_clone_ptr(LDKCResult_NetAddressDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_NetAddressDecodeErrorZ_clone_ptr(LDKCResult_NetAddressDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_NetAddressDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NetAddressDecodeErrorZ), "LDKCResult_NetAddressDecodeErrorZ");
        *ret_conv = CResult_NetAddressDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NetAddressDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_NetAddressDecodeErrorZ* arg_conv = (LDKCResult_NetAddressDecodeErrorZ*)(arg & ~1);
+       LDKCResult_NetAddressDecodeErrorZ* arg_conv = (LDKCResult_NetAddressDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_NetAddressDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NetAddressDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_NetAddressDecodeErrorZ* orig_conv = (LDKCResult_NetAddressDecodeErrorZ*)(orig & ~1);
+       LDKCResult_NetAddressDecodeErrorZ* orig_conv = (LDKCResult_NetAddressDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_NetAddressDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NetAddressDecodeErrorZ), "LDKCResult_NetAddressDecodeErrorZ");
        *ret_conv = CResult_NetAddressDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1UpdateAddHTLCZ_1free(JNIEnv *env, jclass clz, int64_tArray _res) {
@@ -22239,8 +20948,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1UpdateAddHTLCZ_1free(JNI
        for (size_t p = 0; p < _res_constr.datalen; p++) {
                int64_t _res_conv_15 = _res_vals[p];
                LDKUpdateAddHTLC _res_conv_15_conv;
-               _res_conv_15_conv.inner = (void*)(_res_conv_15 & (~1));
-               _res_conv_15_conv.is_owned = (_res_conv_15 & 1) || (_res_conv_15 == 0);
+               _res_conv_15_conv.inner = untag_ptr(_res_conv_15);
+               _res_conv_15_conv.is_owned = ptr_is_owned(_res_conv_15);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(_res_conv_15_conv);
                _res_constr.data[p] = _res_conv_15_conv;
        }
@@ -22259,8 +20968,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1UpdateFulfillHTLCZ_1free
        for (size_t t = 0; t < _res_constr.datalen; t++) {
                int64_t _res_conv_19 = _res_vals[t];
                LDKUpdateFulfillHTLC _res_conv_19_conv;
-               _res_conv_19_conv.inner = (void*)(_res_conv_19 & (~1));
-               _res_conv_19_conv.is_owned = (_res_conv_19 & 1) || (_res_conv_19 == 0);
+               _res_conv_19_conv.inner = untag_ptr(_res_conv_19);
+               _res_conv_19_conv.is_owned = ptr_is_owned(_res_conv_19);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(_res_conv_19_conv);
                _res_constr.data[t] = _res_conv_19_conv;
        }
@@ -22279,8 +20988,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1UpdateFailHTLCZ_1free(JN
        for (size_t q = 0; q < _res_constr.datalen; q++) {
                int64_t _res_conv_16 = _res_vals[q];
                LDKUpdateFailHTLC _res_conv_16_conv;
-               _res_conv_16_conv.inner = (void*)(_res_conv_16 & (~1));
-               _res_conv_16_conv.is_owned = (_res_conv_16 & 1) || (_res_conv_16 == 0);
+               _res_conv_16_conv.inner = untag_ptr(_res_conv_16);
+               _res_conv_16_conv.is_owned = ptr_is_owned(_res_conv_16);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(_res_conv_16_conv);
                _res_constr.data[q] = _res_conv_16_conv;
        }
@@ -22299,8 +21008,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1UpdateFailMalformedHTLCZ
        for (size_t z = 0; z < _res_constr.datalen; z++) {
                int64_t _res_conv_25 = _res_vals[z];
                LDKUpdateFailMalformedHTLC _res_conv_25_conv;
-               _res_conv_25_conv.inner = (void*)(_res_conv_25 & (~1));
-               _res_conv_25_conv.is_owned = (_res_conv_25 & 1) || (_res_conv_25 == 0);
+               _res_conv_25_conv.inner = untag_ptr(_res_conv_25);
+               _res_conv_25_conv.is_owned = ptr_is_owned(_res_conv_25);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(_res_conv_25_conv);
                _res_constr.data[z] = _res_conv_25_conv;
        }
@@ -22310,1817 +21019,1817 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1UpdateFailMalformedHTLCZ
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1AcceptChannelDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKAcceptChannel o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = AcceptChannel_clone(&o_conv);
        LDKCResult_AcceptChannelDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_AcceptChannelDecodeErrorZ), "LDKCResult_AcceptChannelDecodeErrorZ");
        *ret_conv = CResult_AcceptChannelDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1AcceptChannelDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_AcceptChannelDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_AcceptChannelDecodeErrorZ), "LDKCResult_AcceptChannelDecodeErrorZ");
        *ret_conv = CResult_AcceptChannelDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1AcceptChannelDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_AcceptChannelDecodeErrorZ* o_conv = (LDKCResult_AcceptChannelDecodeErrorZ*)(o & ~1);
+       LDKCResult_AcceptChannelDecodeErrorZ* o_conv = (LDKCResult_AcceptChannelDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_AcceptChannelDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1AcceptChannelDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_AcceptChannelDecodeErrorZ _res_conv = *(LDKCResult_AcceptChannelDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_AcceptChannelDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_AcceptChannelDecodeErrorZ_clone_ptr(LDKCResult_AcceptChannelDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_AcceptChannelDecodeErrorZ_clone_ptr(LDKCResult_AcceptChannelDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_AcceptChannelDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_AcceptChannelDecodeErrorZ), "LDKCResult_AcceptChannelDecodeErrorZ");
        *ret_conv = CResult_AcceptChannelDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1AcceptChannelDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_AcceptChannelDecodeErrorZ* arg_conv = (LDKCResult_AcceptChannelDecodeErrorZ*)(arg & ~1);
+       LDKCResult_AcceptChannelDecodeErrorZ* arg_conv = (LDKCResult_AcceptChannelDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_AcceptChannelDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1AcceptChannelDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_AcceptChannelDecodeErrorZ* orig_conv = (LDKCResult_AcceptChannelDecodeErrorZ*)(orig & ~1);
+       LDKCResult_AcceptChannelDecodeErrorZ* orig_conv = (LDKCResult_AcceptChannelDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_AcceptChannelDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_AcceptChannelDecodeErrorZ), "LDKCResult_AcceptChannelDecodeErrorZ");
        *ret_conv = CResult_AcceptChannelDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1AnnouncementSignaturesDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKAnnouncementSignatures o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = AnnouncementSignatures_clone(&o_conv);
        LDKCResult_AnnouncementSignaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_AnnouncementSignaturesDecodeErrorZ), "LDKCResult_AnnouncementSignaturesDecodeErrorZ");
        *ret_conv = CResult_AnnouncementSignaturesDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1AnnouncementSignaturesDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_AnnouncementSignaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_AnnouncementSignaturesDecodeErrorZ), "LDKCResult_AnnouncementSignaturesDecodeErrorZ");
        *ret_conv = CResult_AnnouncementSignaturesDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1AnnouncementSignaturesDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_AnnouncementSignaturesDecodeErrorZ* o_conv = (LDKCResult_AnnouncementSignaturesDecodeErrorZ*)(o & ~1);
+       LDKCResult_AnnouncementSignaturesDecodeErrorZ* o_conv = (LDKCResult_AnnouncementSignaturesDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_AnnouncementSignaturesDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1AnnouncementSignaturesDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_AnnouncementSignaturesDecodeErrorZ _res_conv = *(LDKCResult_AnnouncementSignaturesDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_AnnouncementSignaturesDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_AnnouncementSignaturesDecodeErrorZ_clone_ptr(LDKCResult_AnnouncementSignaturesDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_AnnouncementSignaturesDecodeErrorZ_clone_ptr(LDKCResult_AnnouncementSignaturesDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_AnnouncementSignaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_AnnouncementSignaturesDecodeErrorZ), "LDKCResult_AnnouncementSignaturesDecodeErrorZ");
        *ret_conv = CResult_AnnouncementSignaturesDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1AnnouncementSignaturesDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_AnnouncementSignaturesDecodeErrorZ* arg_conv = (LDKCResult_AnnouncementSignaturesDecodeErrorZ*)(arg & ~1);
+       LDKCResult_AnnouncementSignaturesDecodeErrorZ* arg_conv = (LDKCResult_AnnouncementSignaturesDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_AnnouncementSignaturesDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1AnnouncementSignaturesDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_AnnouncementSignaturesDecodeErrorZ* orig_conv = (LDKCResult_AnnouncementSignaturesDecodeErrorZ*)(orig & ~1);
+       LDKCResult_AnnouncementSignaturesDecodeErrorZ* orig_conv = (LDKCResult_AnnouncementSignaturesDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_AnnouncementSignaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_AnnouncementSignaturesDecodeErrorZ), "LDKCResult_AnnouncementSignaturesDecodeErrorZ");
        *ret_conv = CResult_AnnouncementSignaturesDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelReestablishDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKChannelReestablish o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = ChannelReestablish_clone(&o_conv);
        LDKCResult_ChannelReestablishDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelReestablishDecodeErrorZ), "LDKCResult_ChannelReestablishDecodeErrorZ");
        *ret_conv = CResult_ChannelReestablishDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelReestablishDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ChannelReestablishDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelReestablishDecodeErrorZ), "LDKCResult_ChannelReestablishDecodeErrorZ");
        *ret_conv = CResult_ChannelReestablishDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelReestablishDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_ChannelReestablishDecodeErrorZ* o_conv = (LDKCResult_ChannelReestablishDecodeErrorZ*)(o & ~1);
+       LDKCResult_ChannelReestablishDecodeErrorZ* o_conv = (LDKCResult_ChannelReestablishDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_ChannelReestablishDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelReestablishDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ChannelReestablishDecodeErrorZ _res_conv = *(LDKCResult_ChannelReestablishDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_ChannelReestablishDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_ChannelReestablishDecodeErrorZ_clone_ptr(LDKCResult_ChannelReestablishDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_ChannelReestablishDecodeErrorZ_clone_ptr(LDKCResult_ChannelReestablishDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ChannelReestablishDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelReestablishDecodeErrorZ), "LDKCResult_ChannelReestablishDecodeErrorZ");
        *ret_conv = CResult_ChannelReestablishDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelReestablishDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_ChannelReestablishDecodeErrorZ* arg_conv = (LDKCResult_ChannelReestablishDecodeErrorZ*)(arg & ~1);
+       LDKCResult_ChannelReestablishDecodeErrorZ* arg_conv = (LDKCResult_ChannelReestablishDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_ChannelReestablishDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelReestablishDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_ChannelReestablishDecodeErrorZ* orig_conv = (LDKCResult_ChannelReestablishDecodeErrorZ*)(orig & ~1);
+       LDKCResult_ChannelReestablishDecodeErrorZ* orig_conv = (LDKCResult_ChannelReestablishDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_ChannelReestablishDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelReestablishDecodeErrorZ), "LDKCResult_ChannelReestablishDecodeErrorZ");
        *ret_conv = CResult_ChannelReestablishDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ClosingSignedDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKClosingSigned o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = ClosingSigned_clone(&o_conv);
        LDKCResult_ClosingSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ClosingSignedDecodeErrorZ), "LDKCResult_ClosingSignedDecodeErrorZ");
        *ret_conv = CResult_ClosingSignedDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ClosingSignedDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ClosingSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ClosingSignedDecodeErrorZ), "LDKCResult_ClosingSignedDecodeErrorZ");
        *ret_conv = CResult_ClosingSignedDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1ClosingSignedDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_ClosingSignedDecodeErrorZ* o_conv = (LDKCResult_ClosingSignedDecodeErrorZ*)(o & ~1);
+       LDKCResult_ClosingSignedDecodeErrorZ* o_conv = (LDKCResult_ClosingSignedDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_ClosingSignedDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ClosingSignedDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ClosingSignedDecodeErrorZ _res_conv = *(LDKCResult_ClosingSignedDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_ClosingSignedDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_ClosingSignedDecodeErrorZ_clone_ptr(LDKCResult_ClosingSignedDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_ClosingSignedDecodeErrorZ_clone_ptr(LDKCResult_ClosingSignedDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ClosingSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ClosingSignedDecodeErrorZ), "LDKCResult_ClosingSignedDecodeErrorZ");
        *ret_conv = CResult_ClosingSignedDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ClosingSignedDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_ClosingSignedDecodeErrorZ* arg_conv = (LDKCResult_ClosingSignedDecodeErrorZ*)(arg & ~1);
+       LDKCResult_ClosingSignedDecodeErrorZ* arg_conv = (LDKCResult_ClosingSignedDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_ClosingSignedDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ClosingSignedDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_ClosingSignedDecodeErrorZ* orig_conv = (LDKCResult_ClosingSignedDecodeErrorZ*)(orig & ~1);
+       LDKCResult_ClosingSignedDecodeErrorZ* orig_conv = (LDKCResult_ClosingSignedDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_ClosingSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ClosingSignedDecodeErrorZ), "LDKCResult_ClosingSignedDecodeErrorZ");
        *ret_conv = CResult_ClosingSignedDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ClosingSignedFeeRangeDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKClosingSignedFeeRange o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = ClosingSignedFeeRange_clone(&o_conv);
        LDKCResult_ClosingSignedFeeRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ClosingSignedFeeRangeDecodeErrorZ), "LDKCResult_ClosingSignedFeeRangeDecodeErrorZ");
        *ret_conv = CResult_ClosingSignedFeeRangeDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ClosingSignedFeeRangeDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ClosingSignedFeeRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ClosingSignedFeeRangeDecodeErrorZ), "LDKCResult_ClosingSignedFeeRangeDecodeErrorZ");
        *ret_conv = CResult_ClosingSignedFeeRangeDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1ClosingSignedFeeRangeDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_ClosingSignedFeeRangeDecodeErrorZ* o_conv = (LDKCResult_ClosingSignedFeeRangeDecodeErrorZ*)(o & ~1);
+       LDKCResult_ClosingSignedFeeRangeDecodeErrorZ* o_conv = (LDKCResult_ClosingSignedFeeRangeDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_ClosingSignedFeeRangeDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ClosingSignedFeeRangeDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ClosingSignedFeeRangeDecodeErrorZ _res_conv = *(LDKCResult_ClosingSignedFeeRangeDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_ClosingSignedFeeRangeDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_ClosingSignedFeeRangeDecodeErrorZ_clone_ptr(LDKCResult_ClosingSignedFeeRangeDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_ClosingSignedFeeRangeDecodeErrorZ_clone_ptr(LDKCResult_ClosingSignedFeeRangeDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ClosingSignedFeeRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ClosingSignedFeeRangeDecodeErrorZ), "LDKCResult_ClosingSignedFeeRangeDecodeErrorZ");
        *ret_conv = CResult_ClosingSignedFeeRangeDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ClosingSignedFeeRangeDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_ClosingSignedFeeRangeDecodeErrorZ* arg_conv = (LDKCResult_ClosingSignedFeeRangeDecodeErrorZ*)(arg & ~1);
+       LDKCResult_ClosingSignedFeeRangeDecodeErrorZ* arg_conv = (LDKCResult_ClosingSignedFeeRangeDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_ClosingSignedFeeRangeDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ClosingSignedFeeRangeDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_ClosingSignedFeeRangeDecodeErrorZ* orig_conv = (LDKCResult_ClosingSignedFeeRangeDecodeErrorZ*)(orig & ~1);
+       LDKCResult_ClosingSignedFeeRangeDecodeErrorZ* orig_conv = (LDKCResult_ClosingSignedFeeRangeDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_ClosingSignedFeeRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ClosingSignedFeeRangeDecodeErrorZ), "LDKCResult_ClosingSignedFeeRangeDecodeErrorZ");
        *ret_conv = CResult_ClosingSignedFeeRangeDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CommitmentSignedDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKCommitmentSigned o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = CommitmentSigned_clone(&o_conv);
        LDKCResult_CommitmentSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CommitmentSignedDecodeErrorZ), "LDKCResult_CommitmentSignedDecodeErrorZ");
        *ret_conv = CResult_CommitmentSignedDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CommitmentSignedDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_CommitmentSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CommitmentSignedDecodeErrorZ), "LDKCResult_CommitmentSignedDecodeErrorZ");
        *ret_conv = CResult_CommitmentSignedDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1CommitmentSignedDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_CommitmentSignedDecodeErrorZ* o_conv = (LDKCResult_CommitmentSignedDecodeErrorZ*)(o & ~1);
+       LDKCResult_CommitmentSignedDecodeErrorZ* o_conv = (LDKCResult_CommitmentSignedDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_CommitmentSignedDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1CommitmentSignedDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_CommitmentSignedDecodeErrorZ _res_conv = *(LDKCResult_CommitmentSignedDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_CommitmentSignedDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_CommitmentSignedDecodeErrorZ_clone_ptr(LDKCResult_CommitmentSignedDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_CommitmentSignedDecodeErrorZ_clone_ptr(LDKCResult_CommitmentSignedDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_CommitmentSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CommitmentSignedDecodeErrorZ), "LDKCResult_CommitmentSignedDecodeErrorZ");
        *ret_conv = CResult_CommitmentSignedDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CommitmentSignedDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_CommitmentSignedDecodeErrorZ* arg_conv = (LDKCResult_CommitmentSignedDecodeErrorZ*)(arg & ~1);
+       LDKCResult_CommitmentSignedDecodeErrorZ* arg_conv = (LDKCResult_CommitmentSignedDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_CommitmentSignedDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CommitmentSignedDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_CommitmentSignedDecodeErrorZ* orig_conv = (LDKCResult_CommitmentSignedDecodeErrorZ*)(orig & ~1);
+       LDKCResult_CommitmentSignedDecodeErrorZ* orig_conv = (LDKCResult_CommitmentSignedDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_CommitmentSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CommitmentSignedDecodeErrorZ), "LDKCResult_CommitmentSignedDecodeErrorZ");
        *ret_conv = CResult_CommitmentSignedDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1FundingCreatedDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKFundingCreated o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = FundingCreated_clone(&o_conv);
        LDKCResult_FundingCreatedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingCreatedDecodeErrorZ), "LDKCResult_FundingCreatedDecodeErrorZ");
        *ret_conv = CResult_FundingCreatedDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1FundingCreatedDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_FundingCreatedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingCreatedDecodeErrorZ), "LDKCResult_FundingCreatedDecodeErrorZ");
        *ret_conv = CResult_FundingCreatedDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1FundingCreatedDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_FundingCreatedDecodeErrorZ* o_conv = (LDKCResult_FundingCreatedDecodeErrorZ*)(o & ~1);
+       LDKCResult_FundingCreatedDecodeErrorZ* o_conv = (LDKCResult_FundingCreatedDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_FundingCreatedDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1FundingCreatedDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_FundingCreatedDecodeErrorZ _res_conv = *(LDKCResult_FundingCreatedDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_FundingCreatedDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_FundingCreatedDecodeErrorZ_clone_ptr(LDKCResult_FundingCreatedDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_FundingCreatedDecodeErrorZ_clone_ptr(LDKCResult_FundingCreatedDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_FundingCreatedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingCreatedDecodeErrorZ), "LDKCResult_FundingCreatedDecodeErrorZ");
        *ret_conv = CResult_FundingCreatedDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1FundingCreatedDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_FundingCreatedDecodeErrorZ* arg_conv = (LDKCResult_FundingCreatedDecodeErrorZ*)(arg & ~1);
+       LDKCResult_FundingCreatedDecodeErrorZ* arg_conv = (LDKCResult_FundingCreatedDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_FundingCreatedDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1FundingCreatedDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_FundingCreatedDecodeErrorZ* orig_conv = (LDKCResult_FundingCreatedDecodeErrorZ*)(orig & ~1);
+       LDKCResult_FundingCreatedDecodeErrorZ* orig_conv = (LDKCResult_FundingCreatedDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_FundingCreatedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingCreatedDecodeErrorZ), "LDKCResult_FundingCreatedDecodeErrorZ");
        *ret_conv = CResult_FundingCreatedDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1FundingSignedDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKFundingSigned o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = FundingSigned_clone(&o_conv);
        LDKCResult_FundingSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingSignedDecodeErrorZ), "LDKCResult_FundingSignedDecodeErrorZ");
        *ret_conv = CResult_FundingSignedDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1FundingSignedDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_FundingSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingSignedDecodeErrorZ), "LDKCResult_FundingSignedDecodeErrorZ");
        *ret_conv = CResult_FundingSignedDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1FundingSignedDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_FundingSignedDecodeErrorZ* o_conv = (LDKCResult_FundingSignedDecodeErrorZ*)(o & ~1);
+       LDKCResult_FundingSignedDecodeErrorZ* o_conv = (LDKCResult_FundingSignedDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_FundingSignedDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1FundingSignedDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_FundingSignedDecodeErrorZ _res_conv = *(LDKCResult_FundingSignedDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_FundingSignedDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_FundingSignedDecodeErrorZ_clone_ptr(LDKCResult_FundingSignedDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_FundingSignedDecodeErrorZ_clone_ptr(LDKCResult_FundingSignedDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_FundingSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingSignedDecodeErrorZ), "LDKCResult_FundingSignedDecodeErrorZ");
        *ret_conv = CResult_FundingSignedDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1FundingSignedDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_FundingSignedDecodeErrorZ* arg_conv = (LDKCResult_FundingSignedDecodeErrorZ*)(arg & ~1);
+       LDKCResult_FundingSignedDecodeErrorZ* arg_conv = (LDKCResult_FundingSignedDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_FundingSignedDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1FundingSignedDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_FundingSignedDecodeErrorZ* orig_conv = (LDKCResult_FundingSignedDecodeErrorZ*)(orig & ~1);
+       LDKCResult_FundingSignedDecodeErrorZ* orig_conv = (LDKCResult_FundingSignedDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_FundingSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingSignedDecodeErrorZ), "LDKCResult_FundingSignedDecodeErrorZ");
        *ret_conv = CResult_FundingSignedDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelReadyDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKChannelReady o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = ChannelReady_clone(&o_conv);
        LDKCResult_ChannelReadyDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelReadyDecodeErrorZ), "LDKCResult_ChannelReadyDecodeErrorZ");
        *ret_conv = CResult_ChannelReadyDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelReadyDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ChannelReadyDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelReadyDecodeErrorZ), "LDKCResult_ChannelReadyDecodeErrorZ");
        *ret_conv = CResult_ChannelReadyDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelReadyDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_ChannelReadyDecodeErrorZ* o_conv = (LDKCResult_ChannelReadyDecodeErrorZ*)(o & ~1);
+       LDKCResult_ChannelReadyDecodeErrorZ* o_conv = (LDKCResult_ChannelReadyDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_ChannelReadyDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelReadyDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ChannelReadyDecodeErrorZ _res_conv = *(LDKCResult_ChannelReadyDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_ChannelReadyDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_ChannelReadyDecodeErrorZ_clone_ptr(LDKCResult_ChannelReadyDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_ChannelReadyDecodeErrorZ_clone_ptr(LDKCResult_ChannelReadyDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ChannelReadyDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelReadyDecodeErrorZ), "LDKCResult_ChannelReadyDecodeErrorZ");
        *ret_conv = CResult_ChannelReadyDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelReadyDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_ChannelReadyDecodeErrorZ* arg_conv = (LDKCResult_ChannelReadyDecodeErrorZ*)(arg & ~1);
+       LDKCResult_ChannelReadyDecodeErrorZ* arg_conv = (LDKCResult_ChannelReadyDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_ChannelReadyDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelReadyDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_ChannelReadyDecodeErrorZ* orig_conv = (LDKCResult_ChannelReadyDecodeErrorZ*)(orig & ~1);
+       LDKCResult_ChannelReadyDecodeErrorZ* orig_conv = (LDKCResult_ChannelReadyDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_ChannelReadyDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelReadyDecodeErrorZ), "LDKCResult_ChannelReadyDecodeErrorZ");
        *ret_conv = CResult_ChannelReadyDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InitDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKInit o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = Init_clone(&o_conv);
        LDKCResult_InitDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InitDecodeErrorZ), "LDKCResult_InitDecodeErrorZ");
        *ret_conv = CResult_InitDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InitDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_InitDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InitDecodeErrorZ), "LDKCResult_InitDecodeErrorZ");
        *ret_conv = CResult_InitDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1InitDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_InitDecodeErrorZ* o_conv = (LDKCResult_InitDecodeErrorZ*)(o & ~1);
+       LDKCResult_InitDecodeErrorZ* o_conv = (LDKCResult_InitDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_InitDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1InitDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_InitDecodeErrorZ _res_conv = *(LDKCResult_InitDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_InitDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_InitDecodeErrorZ_clone_ptr(LDKCResult_InitDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_InitDecodeErrorZ_clone_ptr(LDKCResult_InitDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_InitDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InitDecodeErrorZ), "LDKCResult_InitDecodeErrorZ");
        *ret_conv = CResult_InitDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InitDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_InitDecodeErrorZ* arg_conv = (LDKCResult_InitDecodeErrorZ*)(arg & ~1);
+       LDKCResult_InitDecodeErrorZ* arg_conv = (LDKCResult_InitDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_InitDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InitDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_InitDecodeErrorZ* orig_conv = (LDKCResult_InitDecodeErrorZ*)(orig & ~1);
+       LDKCResult_InitDecodeErrorZ* orig_conv = (LDKCResult_InitDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_InitDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InitDecodeErrorZ), "LDKCResult_InitDecodeErrorZ");
        *ret_conv = CResult_InitDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1OpenChannelDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKOpenChannel o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = OpenChannel_clone(&o_conv);
        LDKCResult_OpenChannelDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_OpenChannelDecodeErrorZ), "LDKCResult_OpenChannelDecodeErrorZ");
        *ret_conv = CResult_OpenChannelDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1OpenChannelDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_OpenChannelDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_OpenChannelDecodeErrorZ), "LDKCResult_OpenChannelDecodeErrorZ");
        *ret_conv = CResult_OpenChannelDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1OpenChannelDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_OpenChannelDecodeErrorZ* o_conv = (LDKCResult_OpenChannelDecodeErrorZ*)(o & ~1);
+       LDKCResult_OpenChannelDecodeErrorZ* o_conv = (LDKCResult_OpenChannelDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_OpenChannelDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1OpenChannelDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_OpenChannelDecodeErrorZ _res_conv = *(LDKCResult_OpenChannelDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_OpenChannelDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_OpenChannelDecodeErrorZ_clone_ptr(LDKCResult_OpenChannelDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_OpenChannelDecodeErrorZ_clone_ptr(LDKCResult_OpenChannelDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_OpenChannelDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_OpenChannelDecodeErrorZ), "LDKCResult_OpenChannelDecodeErrorZ");
        *ret_conv = CResult_OpenChannelDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1OpenChannelDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_OpenChannelDecodeErrorZ* arg_conv = (LDKCResult_OpenChannelDecodeErrorZ*)(arg & ~1);
+       LDKCResult_OpenChannelDecodeErrorZ* arg_conv = (LDKCResult_OpenChannelDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_OpenChannelDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1OpenChannelDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_OpenChannelDecodeErrorZ* orig_conv = (LDKCResult_OpenChannelDecodeErrorZ*)(orig & ~1);
+       LDKCResult_OpenChannelDecodeErrorZ* orig_conv = (LDKCResult_OpenChannelDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_OpenChannelDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_OpenChannelDecodeErrorZ), "LDKCResult_OpenChannelDecodeErrorZ");
        *ret_conv = CResult_OpenChannelDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RevokeAndACKDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKRevokeAndACK o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = RevokeAndACK_clone(&o_conv);
        LDKCResult_RevokeAndACKDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RevokeAndACKDecodeErrorZ), "LDKCResult_RevokeAndACKDecodeErrorZ");
        *ret_conv = CResult_RevokeAndACKDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RevokeAndACKDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_RevokeAndACKDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RevokeAndACKDecodeErrorZ), "LDKCResult_RevokeAndACKDecodeErrorZ");
        *ret_conv = CResult_RevokeAndACKDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1RevokeAndACKDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_RevokeAndACKDecodeErrorZ* o_conv = (LDKCResult_RevokeAndACKDecodeErrorZ*)(o & ~1);
+       LDKCResult_RevokeAndACKDecodeErrorZ* o_conv = (LDKCResult_RevokeAndACKDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_RevokeAndACKDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1RevokeAndACKDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_RevokeAndACKDecodeErrorZ _res_conv = *(LDKCResult_RevokeAndACKDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_RevokeAndACKDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_RevokeAndACKDecodeErrorZ_clone_ptr(LDKCResult_RevokeAndACKDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_RevokeAndACKDecodeErrorZ_clone_ptr(LDKCResult_RevokeAndACKDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_RevokeAndACKDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RevokeAndACKDecodeErrorZ), "LDKCResult_RevokeAndACKDecodeErrorZ");
        *ret_conv = CResult_RevokeAndACKDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RevokeAndACKDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_RevokeAndACKDecodeErrorZ* arg_conv = (LDKCResult_RevokeAndACKDecodeErrorZ*)(arg & ~1);
+       LDKCResult_RevokeAndACKDecodeErrorZ* arg_conv = (LDKCResult_RevokeAndACKDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_RevokeAndACKDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RevokeAndACKDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_RevokeAndACKDecodeErrorZ* orig_conv = (LDKCResult_RevokeAndACKDecodeErrorZ*)(orig & ~1);
+       LDKCResult_RevokeAndACKDecodeErrorZ* orig_conv = (LDKCResult_RevokeAndACKDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_RevokeAndACKDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RevokeAndACKDecodeErrorZ), "LDKCResult_RevokeAndACKDecodeErrorZ");
        *ret_conv = CResult_RevokeAndACKDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKShutdown o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = Shutdown_clone(&o_conv);
        LDKCResult_ShutdownDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownDecodeErrorZ), "LDKCResult_ShutdownDecodeErrorZ");
        *ret_conv = CResult_ShutdownDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ShutdownDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownDecodeErrorZ), "LDKCResult_ShutdownDecodeErrorZ");
        *ret_conv = CResult_ShutdownDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_ShutdownDecodeErrorZ* o_conv = (LDKCResult_ShutdownDecodeErrorZ*)(o & ~1);
+       LDKCResult_ShutdownDecodeErrorZ* o_conv = (LDKCResult_ShutdownDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_ShutdownDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ShutdownDecodeErrorZ _res_conv = *(LDKCResult_ShutdownDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_ShutdownDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_ShutdownDecodeErrorZ_clone_ptr(LDKCResult_ShutdownDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_ShutdownDecodeErrorZ_clone_ptr(LDKCResult_ShutdownDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ShutdownDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownDecodeErrorZ), "LDKCResult_ShutdownDecodeErrorZ");
        *ret_conv = CResult_ShutdownDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_ShutdownDecodeErrorZ* arg_conv = (LDKCResult_ShutdownDecodeErrorZ*)(arg & ~1);
+       LDKCResult_ShutdownDecodeErrorZ* arg_conv = (LDKCResult_ShutdownDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_ShutdownDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_ShutdownDecodeErrorZ* orig_conv = (LDKCResult_ShutdownDecodeErrorZ*)(orig & ~1);
+       LDKCResult_ShutdownDecodeErrorZ* orig_conv = (LDKCResult_ShutdownDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_ShutdownDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownDecodeErrorZ), "LDKCResult_ShutdownDecodeErrorZ");
        *ret_conv = CResult_ShutdownDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFailHTLCDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKUpdateFailHTLC o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = UpdateFailHTLC_clone(&o_conv);
        LDKCResult_UpdateFailHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFailHTLCDecodeErrorZ), "LDKCResult_UpdateFailHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateFailHTLCDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFailHTLCDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_UpdateFailHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFailHTLCDecodeErrorZ), "LDKCResult_UpdateFailHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateFailHTLCDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFailHTLCDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_UpdateFailHTLCDecodeErrorZ* o_conv = (LDKCResult_UpdateFailHTLCDecodeErrorZ*)(o & ~1);
+       LDKCResult_UpdateFailHTLCDecodeErrorZ* o_conv = (LDKCResult_UpdateFailHTLCDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_UpdateFailHTLCDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFailHTLCDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_UpdateFailHTLCDecodeErrorZ _res_conv = *(LDKCResult_UpdateFailHTLCDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_UpdateFailHTLCDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_UpdateFailHTLCDecodeErrorZ_clone_ptr(LDKCResult_UpdateFailHTLCDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_UpdateFailHTLCDecodeErrorZ_clone_ptr(LDKCResult_UpdateFailHTLCDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_UpdateFailHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFailHTLCDecodeErrorZ), "LDKCResult_UpdateFailHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateFailHTLCDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFailHTLCDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_UpdateFailHTLCDecodeErrorZ* arg_conv = (LDKCResult_UpdateFailHTLCDecodeErrorZ*)(arg & ~1);
+       LDKCResult_UpdateFailHTLCDecodeErrorZ* arg_conv = (LDKCResult_UpdateFailHTLCDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_UpdateFailHTLCDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFailHTLCDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_UpdateFailHTLCDecodeErrorZ* orig_conv = (LDKCResult_UpdateFailHTLCDecodeErrorZ*)(orig & ~1);
+       LDKCResult_UpdateFailHTLCDecodeErrorZ* orig_conv = (LDKCResult_UpdateFailHTLCDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_UpdateFailHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFailHTLCDecodeErrorZ), "LDKCResult_UpdateFailHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateFailHTLCDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFailMalformedHTLCDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKUpdateFailMalformedHTLC o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = UpdateFailMalformedHTLC_clone(&o_conv);
        LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ), "LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateFailMalformedHTLCDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFailMalformedHTLCDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ), "LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateFailMalformedHTLCDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFailMalformedHTLCDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ* o_conv = (LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ*)(o & ~1);
+       LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ* o_conv = (LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_UpdateFailMalformedHTLCDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFailMalformedHTLCDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ _res_conv = *(LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_UpdateFailMalformedHTLCDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_UpdateFailMalformedHTLCDecodeErrorZ_clone_ptr(LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_UpdateFailMalformedHTLCDecodeErrorZ_clone_ptr(LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ), "LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateFailMalformedHTLCDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFailMalformedHTLCDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ* arg_conv = (LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ*)(arg & ~1);
+       LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ* arg_conv = (LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_UpdateFailMalformedHTLCDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFailMalformedHTLCDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ* orig_conv = (LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ*)(orig & ~1);
+       LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ* orig_conv = (LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ), "LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateFailMalformedHTLCDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFeeDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKUpdateFee o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = UpdateFee_clone(&o_conv);
        LDKCResult_UpdateFeeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFeeDecodeErrorZ), "LDKCResult_UpdateFeeDecodeErrorZ");
        *ret_conv = CResult_UpdateFeeDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFeeDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_UpdateFeeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFeeDecodeErrorZ), "LDKCResult_UpdateFeeDecodeErrorZ");
        *ret_conv = CResult_UpdateFeeDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFeeDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_UpdateFeeDecodeErrorZ* o_conv = (LDKCResult_UpdateFeeDecodeErrorZ*)(o & ~1);
+       LDKCResult_UpdateFeeDecodeErrorZ* o_conv = (LDKCResult_UpdateFeeDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_UpdateFeeDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFeeDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_UpdateFeeDecodeErrorZ _res_conv = *(LDKCResult_UpdateFeeDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_UpdateFeeDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_UpdateFeeDecodeErrorZ_clone_ptr(LDKCResult_UpdateFeeDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_UpdateFeeDecodeErrorZ_clone_ptr(LDKCResult_UpdateFeeDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_UpdateFeeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFeeDecodeErrorZ), "LDKCResult_UpdateFeeDecodeErrorZ");
        *ret_conv = CResult_UpdateFeeDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFeeDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_UpdateFeeDecodeErrorZ* arg_conv = (LDKCResult_UpdateFeeDecodeErrorZ*)(arg & ~1);
+       LDKCResult_UpdateFeeDecodeErrorZ* arg_conv = (LDKCResult_UpdateFeeDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_UpdateFeeDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFeeDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_UpdateFeeDecodeErrorZ* orig_conv = (LDKCResult_UpdateFeeDecodeErrorZ*)(orig & ~1);
+       LDKCResult_UpdateFeeDecodeErrorZ* orig_conv = (LDKCResult_UpdateFeeDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_UpdateFeeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFeeDecodeErrorZ), "LDKCResult_UpdateFeeDecodeErrorZ");
        *ret_conv = CResult_UpdateFeeDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFulfillHTLCDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKUpdateFulfillHTLC o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = UpdateFulfillHTLC_clone(&o_conv);
        LDKCResult_UpdateFulfillHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFulfillHTLCDecodeErrorZ), "LDKCResult_UpdateFulfillHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateFulfillHTLCDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFulfillHTLCDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_UpdateFulfillHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFulfillHTLCDecodeErrorZ), "LDKCResult_UpdateFulfillHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateFulfillHTLCDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFulfillHTLCDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_UpdateFulfillHTLCDecodeErrorZ* o_conv = (LDKCResult_UpdateFulfillHTLCDecodeErrorZ*)(o & ~1);
+       LDKCResult_UpdateFulfillHTLCDecodeErrorZ* o_conv = (LDKCResult_UpdateFulfillHTLCDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_UpdateFulfillHTLCDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFulfillHTLCDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_UpdateFulfillHTLCDecodeErrorZ _res_conv = *(LDKCResult_UpdateFulfillHTLCDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_UpdateFulfillHTLCDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_UpdateFulfillHTLCDecodeErrorZ_clone_ptr(LDKCResult_UpdateFulfillHTLCDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_UpdateFulfillHTLCDecodeErrorZ_clone_ptr(LDKCResult_UpdateFulfillHTLCDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_UpdateFulfillHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFulfillHTLCDecodeErrorZ), "LDKCResult_UpdateFulfillHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateFulfillHTLCDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFulfillHTLCDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_UpdateFulfillHTLCDecodeErrorZ* arg_conv = (LDKCResult_UpdateFulfillHTLCDecodeErrorZ*)(arg & ~1);
+       LDKCResult_UpdateFulfillHTLCDecodeErrorZ* arg_conv = (LDKCResult_UpdateFulfillHTLCDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_UpdateFulfillHTLCDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFulfillHTLCDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_UpdateFulfillHTLCDecodeErrorZ* orig_conv = (LDKCResult_UpdateFulfillHTLCDecodeErrorZ*)(orig & ~1);
+       LDKCResult_UpdateFulfillHTLCDecodeErrorZ* orig_conv = (LDKCResult_UpdateFulfillHTLCDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_UpdateFulfillHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFulfillHTLCDecodeErrorZ), "LDKCResult_UpdateFulfillHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateFulfillHTLCDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateAddHTLCDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKUpdateAddHTLC o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = UpdateAddHTLC_clone(&o_conv);
        LDKCResult_UpdateAddHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateAddHTLCDecodeErrorZ), "LDKCResult_UpdateAddHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateAddHTLCDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateAddHTLCDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_UpdateAddHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateAddHTLCDecodeErrorZ), "LDKCResult_UpdateAddHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateAddHTLCDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateAddHTLCDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_UpdateAddHTLCDecodeErrorZ* o_conv = (LDKCResult_UpdateAddHTLCDecodeErrorZ*)(o & ~1);
+       LDKCResult_UpdateAddHTLCDecodeErrorZ* o_conv = (LDKCResult_UpdateAddHTLCDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_UpdateAddHTLCDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateAddHTLCDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_UpdateAddHTLCDecodeErrorZ _res_conv = *(LDKCResult_UpdateAddHTLCDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_UpdateAddHTLCDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_UpdateAddHTLCDecodeErrorZ_clone_ptr(LDKCResult_UpdateAddHTLCDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_UpdateAddHTLCDecodeErrorZ_clone_ptr(LDKCResult_UpdateAddHTLCDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_UpdateAddHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateAddHTLCDecodeErrorZ), "LDKCResult_UpdateAddHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateAddHTLCDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateAddHTLCDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_UpdateAddHTLCDecodeErrorZ* arg_conv = (LDKCResult_UpdateAddHTLCDecodeErrorZ*)(arg & ~1);
+       LDKCResult_UpdateAddHTLCDecodeErrorZ* arg_conv = (LDKCResult_UpdateAddHTLCDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_UpdateAddHTLCDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateAddHTLCDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_UpdateAddHTLCDecodeErrorZ* orig_conv = (LDKCResult_UpdateAddHTLCDecodeErrorZ*)(orig & ~1);
+       LDKCResult_UpdateAddHTLCDecodeErrorZ* orig_conv = (LDKCResult_UpdateAddHTLCDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_UpdateAddHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateAddHTLCDecodeErrorZ), "LDKCResult_UpdateAddHTLCDecodeErrorZ");
        *ret_conv = CResult_UpdateAddHTLCDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PingDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKPing o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = Ping_clone(&o_conv);
        LDKCResult_PingDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PingDecodeErrorZ), "LDKCResult_PingDecodeErrorZ");
        *ret_conv = CResult_PingDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PingDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_PingDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PingDecodeErrorZ), "LDKCResult_PingDecodeErrorZ");
        *ret_conv = CResult_PingDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1PingDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_PingDecodeErrorZ* o_conv = (LDKCResult_PingDecodeErrorZ*)(o & ~1);
+       LDKCResult_PingDecodeErrorZ* o_conv = (LDKCResult_PingDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_PingDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PingDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_PingDecodeErrorZ _res_conv = *(LDKCResult_PingDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_PingDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_PingDecodeErrorZ_clone_ptr(LDKCResult_PingDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_PingDecodeErrorZ_clone_ptr(LDKCResult_PingDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_PingDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PingDecodeErrorZ), "LDKCResult_PingDecodeErrorZ");
        *ret_conv = CResult_PingDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PingDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_PingDecodeErrorZ* arg_conv = (LDKCResult_PingDecodeErrorZ*)(arg & ~1);
+       LDKCResult_PingDecodeErrorZ* arg_conv = (LDKCResult_PingDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_PingDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PingDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_PingDecodeErrorZ* orig_conv = (LDKCResult_PingDecodeErrorZ*)(orig & ~1);
+       LDKCResult_PingDecodeErrorZ* orig_conv = (LDKCResult_PingDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_PingDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PingDecodeErrorZ), "LDKCResult_PingDecodeErrorZ");
        *ret_conv = CResult_PingDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PongDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKPong o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = Pong_clone(&o_conv);
        LDKCResult_PongDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PongDecodeErrorZ), "LDKCResult_PongDecodeErrorZ");
        *ret_conv = CResult_PongDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PongDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_PongDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PongDecodeErrorZ), "LDKCResult_PongDecodeErrorZ");
        *ret_conv = CResult_PongDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1PongDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_PongDecodeErrorZ* o_conv = (LDKCResult_PongDecodeErrorZ*)(o & ~1);
+       LDKCResult_PongDecodeErrorZ* o_conv = (LDKCResult_PongDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_PongDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PongDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_PongDecodeErrorZ _res_conv = *(LDKCResult_PongDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_PongDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_PongDecodeErrorZ_clone_ptr(LDKCResult_PongDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_PongDecodeErrorZ_clone_ptr(LDKCResult_PongDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_PongDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PongDecodeErrorZ), "LDKCResult_PongDecodeErrorZ");
        *ret_conv = CResult_PongDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PongDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_PongDecodeErrorZ* arg_conv = (LDKCResult_PongDecodeErrorZ*)(arg & ~1);
+       LDKCResult_PongDecodeErrorZ* arg_conv = (LDKCResult_PongDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_PongDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PongDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_PongDecodeErrorZ* orig_conv = (LDKCResult_PongDecodeErrorZ*)(orig & ~1);
+       LDKCResult_PongDecodeErrorZ* orig_conv = (LDKCResult_PongDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_PongDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PongDecodeErrorZ), "LDKCResult_PongDecodeErrorZ");
        *ret_conv = CResult_PongDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedChannelAnnouncementDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKUnsignedChannelAnnouncement o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = UnsignedChannelAnnouncement_clone(&o_conv);
        LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ), "LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ");
        *ret_conv = CResult_UnsignedChannelAnnouncementDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedChannelAnnouncementDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ), "LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ");
        *ret_conv = CResult_UnsignedChannelAnnouncementDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedChannelAnnouncementDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ* o_conv = (LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ*)(o & ~1);
+       LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ* o_conv = (LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_UnsignedChannelAnnouncementDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedChannelAnnouncementDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ _res_conv = *(LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_UnsignedChannelAnnouncementDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_UnsignedChannelAnnouncementDecodeErrorZ_clone_ptr(LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_UnsignedChannelAnnouncementDecodeErrorZ_clone_ptr(LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ), "LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ");
        *ret_conv = CResult_UnsignedChannelAnnouncementDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedChannelAnnouncementDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ* arg_conv = (LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ*)(arg & ~1);
+       LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ* arg_conv = (LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_UnsignedChannelAnnouncementDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedChannelAnnouncementDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ* orig_conv = (LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ*)(orig & ~1);
+       LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ* orig_conv = (LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ), "LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ");
        *ret_conv = CResult_UnsignedChannelAnnouncementDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelAnnouncementDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKChannelAnnouncement o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = ChannelAnnouncement_clone(&o_conv);
        LDKCResult_ChannelAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelAnnouncementDecodeErrorZ), "LDKCResult_ChannelAnnouncementDecodeErrorZ");
        *ret_conv = CResult_ChannelAnnouncementDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelAnnouncementDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ChannelAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelAnnouncementDecodeErrorZ), "LDKCResult_ChannelAnnouncementDecodeErrorZ");
        *ret_conv = CResult_ChannelAnnouncementDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelAnnouncementDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_ChannelAnnouncementDecodeErrorZ* o_conv = (LDKCResult_ChannelAnnouncementDecodeErrorZ*)(o & ~1);
+       LDKCResult_ChannelAnnouncementDecodeErrorZ* o_conv = (LDKCResult_ChannelAnnouncementDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_ChannelAnnouncementDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelAnnouncementDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ChannelAnnouncementDecodeErrorZ _res_conv = *(LDKCResult_ChannelAnnouncementDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_ChannelAnnouncementDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_ChannelAnnouncementDecodeErrorZ_clone_ptr(LDKCResult_ChannelAnnouncementDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_ChannelAnnouncementDecodeErrorZ_clone_ptr(LDKCResult_ChannelAnnouncementDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ChannelAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelAnnouncementDecodeErrorZ), "LDKCResult_ChannelAnnouncementDecodeErrorZ");
        *ret_conv = CResult_ChannelAnnouncementDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelAnnouncementDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_ChannelAnnouncementDecodeErrorZ* arg_conv = (LDKCResult_ChannelAnnouncementDecodeErrorZ*)(arg & ~1);
+       LDKCResult_ChannelAnnouncementDecodeErrorZ* arg_conv = (LDKCResult_ChannelAnnouncementDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_ChannelAnnouncementDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelAnnouncementDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_ChannelAnnouncementDecodeErrorZ* orig_conv = (LDKCResult_ChannelAnnouncementDecodeErrorZ*)(orig & ~1);
+       LDKCResult_ChannelAnnouncementDecodeErrorZ* orig_conv = (LDKCResult_ChannelAnnouncementDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_ChannelAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelAnnouncementDecodeErrorZ), "LDKCResult_ChannelAnnouncementDecodeErrorZ");
        *ret_conv = CResult_ChannelAnnouncementDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedChannelUpdateDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKUnsignedChannelUpdate o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = UnsignedChannelUpdate_clone(&o_conv);
        LDKCResult_UnsignedChannelUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedChannelUpdateDecodeErrorZ), "LDKCResult_UnsignedChannelUpdateDecodeErrorZ");
        *ret_conv = CResult_UnsignedChannelUpdateDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedChannelUpdateDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_UnsignedChannelUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedChannelUpdateDecodeErrorZ), "LDKCResult_UnsignedChannelUpdateDecodeErrorZ");
        *ret_conv = CResult_UnsignedChannelUpdateDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedChannelUpdateDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_UnsignedChannelUpdateDecodeErrorZ* o_conv = (LDKCResult_UnsignedChannelUpdateDecodeErrorZ*)(o & ~1);
+       LDKCResult_UnsignedChannelUpdateDecodeErrorZ* o_conv = (LDKCResult_UnsignedChannelUpdateDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_UnsignedChannelUpdateDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedChannelUpdateDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_UnsignedChannelUpdateDecodeErrorZ _res_conv = *(LDKCResult_UnsignedChannelUpdateDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_UnsignedChannelUpdateDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_UnsignedChannelUpdateDecodeErrorZ_clone_ptr(LDKCResult_UnsignedChannelUpdateDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_UnsignedChannelUpdateDecodeErrorZ_clone_ptr(LDKCResult_UnsignedChannelUpdateDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_UnsignedChannelUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedChannelUpdateDecodeErrorZ), "LDKCResult_UnsignedChannelUpdateDecodeErrorZ");
        *ret_conv = CResult_UnsignedChannelUpdateDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedChannelUpdateDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_UnsignedChannelUpdateDecodeErrorZ* arg_conv = (LDKCResult_UnsignedChannelUpdateDecodeErrorZ*)(arg & ~1);
+       LDKCResult_UnsignedChannelUpdateDecodeErrorZ* arg_conv = (LDKCResult_UnsignedChannelUpdateDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_UnsignedChannelUpdateDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedChannelUpdateDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_UnsignedChannelUpdateDecodeErrorZ* orig_conv = (LDKCResult_UnsignedChannelUpdateDecodeErrorZ*)(orig & ~1);
+       LDKCResult_UnsignedChannelUpdateDecodeErrorZ* orig_conv = (LDKCResult_UnsignedChannelUpdateDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_UnsignedChannelUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedChannelUpdateDecodeErrorZ), "LDKCResult_UnsignedChannelUpdateDecodeErrorZ");
        *ret_conv = CResult_UnsignedChannelUpdateDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelUpdateDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKChannelUpdate o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = ChannelUpdate_clone(&o_conv);
        LDKCResult_ChannelUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelUpdateDecodeErrorZ), "LDKCResult_ChannelUpdateDecodeErrorZ");
        *ret_conv = CResult_ChannelUpdateDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelUpdateDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ChannelUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelUpdateDecodeErrorZ), "LDKCResult_ChannelUpdateDecodeErrorZ");
        *ret_conv = CResult_ChannelUpdateDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelUpdateDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_ChannelUpdateDecodeErrorZ* o_conv = (LDKCResult_ChannelUpdateDecodeErrorZ*)(o & ~1);
+       LDKCResult_ChannelUpdateDecodeErrorZ* o_conv = (LDKCResult_ChannelUpdateDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_ChannelUpdateDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelUpdateDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ChannelUpdateDecodeErrorZ _res_conv = *(LDKCResult_ChannelUpdateDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_ChannelUpdateDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_ChannelUpdateDecodeErrorZ_clone_ptr(LDKCResult_ChannelUpdateDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_ChannelUpdateDecodeErrorZ_clone_ptr(LDKCResult_ChannelUpdateDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ChannelUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelUpdateDecodeErrorZ), "LDKCResult_ChannelUpdateDecodeErrorZ");
        *ret_conv = CResult_ChannelUpdateDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelUpdateDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_ChannelUpdateDecodeErrorZ* arg_conv = (LDKCResult_ChannelUpdateDecodeErrorZ*)(arg & ~1);
+       LDKCResult_ChannelUpdateDecodeErrorZ* arg_conv = (LDKCResult_ChannelUpdateDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_ChannelUpdateDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelUpdateDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_ChannelUpdateDecodeErrorZ* orig_conv = (LDKCResult_ChannelUpdateDecodeErrorZ*)(orig & ~1);
+       LDKCResult_ChannelUpdateDecodeErrorZ* orig_conv = (LDKCResult_ChannelUpdateDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_ChannelUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelUpdateDecodeErrorZ), "LDKCResult_ChannelUpdateDecodeErrorZ");
        *ret_conv = CResult_ChannelUpdateDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ErrorMessageDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKErrorMessage o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = ErrorMessage_clone(&o_conv);
        LDKCResult_ErrorMessageDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ErrorMessageDecodeErrorZ), "LDKCResult_ErrorMessageDecodeErrorZ");
        *ret_conv = CResult_ErrorMessageDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ErrorMessageDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ErrorMessageDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ErrorMessageDecodeErrorZ), "LDKCResult_ErrorMessageDecodeErrorZ");
        *ret_conv = CResult_ErrorMessageDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1ErrorMessageDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_ErrorMessageDecodeErrorZ* o_conv = (LDKCResult_ErrorMessageDecodeErrorZ*)(o & ~1);
+       LDKCResult_ErrorMessageDecodeErrorZ* o_conv = (LDKCResult_ErrorMessageDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_ErrorMessageDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ErrorMessageDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ErrorMessageDecodeErrorZ _res_conv = *(LDKCResult_ErrorMessageDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_ErrorMessageDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_ErrorMessageDecodeErrorZ_clone_ptr(LDKCResult_ErrorMessageDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_ErrorMessageDecodeErrorZ_clone_ptr(LDKCResult_ErrorMessageDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ErrorMessageDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ErrorMessageDecodeErrorZ), "LDKCResult_ErrorMessageDecodeErrorZ");
        *ret_conv = CResult_ErrorMessageDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ErrorMessageDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_ErrorMessageDecodeErrorZ* arg_conv = (LDKCResult_ErrorMessageDecodeErrorZ*)(arg & ~1);
+       LDKCResult_ErrorMessageDecodeErrorZ* arg_conv = (LDKCResult_ErrorMessageDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_ErrorMessageDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ErrorMessageDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_ErrorMessageDecodeErrorZ* orig_conv = (LDKCResult_ErrorMessageDecodeErrorZ*)(orig & ~1);
+       LDKCResult_ErrorMessageDecodeErrorZ* orig_conv = (LDKCResult_ErrorMessageDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_ErrorMessageDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ErrorMessageDecodeErrorZ), "LDKCResult_ErrorMessageDecodeErrorZ");
        *ret_conv = CResult_ErrorMessageDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1WarningMessageDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKWarningMessage o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = WarningMessage_clone(&o_conv);
        LDKCResult_WarningMessageDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_WarningMessageDecodeErrorZ), "LDKCResult_WarningMessageDecodeErrorZ");
        *ret_conv = CResult_WarningMessageDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1WarningMessageDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_WarningMessageDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_WarningMessageDecodeErrorZ), "LDKCResult_WarningMessageDecodeErrorZ");
        *ret_conv = CResult_WarningMessageDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1WarningMessageDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_WarningMessageDecodeErrorZ* o_conv = (LDKCResult_WarningMessageDecodeErrorZ*)(o & ~1);
+       LDKCResult_WarningMessageDecodeErrorZ* o_conv = (LDKCResult_WarningMessageDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_WarningMessageDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1WarningMessageDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_WarningMessageDecodeErrorZ _res_conv = *(LDKCResult_WarningMessageDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_WarningMessageDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_WarningMessageDecodeErrorZ_clone_ptr(LDKCResult_WarningMessageDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_WarningMessageDecodeErrorZ_clone_ptr(LDKCResult_WarningMessageDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_WarningMessageDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_WarningMessageDecodeErrorZ), "LDKCResult_WarningMessageDecodeErrorZ");
        *ret_conv = CResult_WarningMessageDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1WarningMessageDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_WarningMessageDecodeErrorZ* arg_conv = (LDKCResult_WarningMessageDecodeErrorZ*)(arg & ~1);
+       LDKCResult_WarningMessageDecodeErrorZ* arg_conv = (LDKCResult_WarningMessageDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_WarningMessageDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1WarningMessageDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_WarningMessageDecodeErrorZ* orig_conv = (LDKCResult_WarningMessageDecodeErrorZ*)(orig & ~1);
+       LDKCResult_WarningMessageDecodeErrorZ* orig_conv = (LDKCResult_WarningMessageDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_WarningMessageDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_WarningMessageDecodeErrorZ), "LDKCResult_WarningMessageDecodeErrorZ");
        *ret_conv = CResult_WarningMessageDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedNodeAnnouncementDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKUnsignedNodeAnnouncement o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = UnsignedNodeAnnouncement_clone(&o_conv);
        LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ), "LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ");
        *ret_conv = CResult_UnsignedNodeAnnouncementDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedNodeAnnouncementDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ), "LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ");
        *ret_conv = CResult_UnsignedNodeAnnouncementDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedNodeAnnouncementDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ* o_conv = (LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ*)(o & ~1);
+       LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ* o_conv = (LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_UnsignedNodeAnnouncementDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedNodeAnnouncementDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ _res_conv = *(LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_UnsignedNodeAnnouncementDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_UnsignedNodeAnnouncementDecodeErrorZ_clone_ptr(LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_UnsignedNodeAnnouncementDecodeErrorZ_clone_ptr(LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ), "LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ");
        *ret_conv = CResult_UnsignedNodeAnnouncementDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedNodeAnnouncementDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ* arg_conv = (LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ*)(arg & ~1);
+       LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ* arg_conv = (LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_UnsignedNodeAnnouncementDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedNodeAnnouncementDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ* orig_conv = (LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ*)(orig & ~1);
+       LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ* orig_conv = (LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ), "LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ");
        *ret_conv = CResult_UnsignedNodeAnnouncementDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAnnouncementDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKNodeAnnouncement o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = NodeAnnouncement_clone(&o_conv);
        LDKCResult_NodeAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAnnouncementDecodeErrorZ), "LDKCResult_NodeAnnouncementDecodeErrorZ");
        *ret_conv = CResult_NodeAnnouncementDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAnnouncementDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_NodeAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAnnouncementDecodeErrorZ), "LDKCResult_NodeAnnouncementDecodeErrorZ");
        *ret_conv = CResult_NodeAnnouncementDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAnnouncementDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_NodeAnnouncementDecodeErrorZ* o_conv = (LDKCResult_NodeAnnouncementDecodeErrorZ*)(o & ~1);
+       LDKCResult_NodeAnnouncementDecodeErrorZ* o_conv = (LDKCResult_NodeAnnouncementDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_NodeAnnouncementDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAnnouncementDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_NodeAnnouncementDecodeErrorZ _res_conv = *(LDKCResult_NodeAnnouncementDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_NodeAnnouncementDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_NodeAnnouncementDecodeErrorZ_clone_ptr(LDKCResult_NodeAnnouncementDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_NodeAnnouncementDecodeErrorZ_clone_ptr(LDKCResult_NodeAnnouncementDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_NodeAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAnnouncementDecodeErrorZ), "LDKCResult_NodeAnnouncementDecodeErrorZ");
        *ret_conv = CResult_NodeAnnouncementDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAnnouncementDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_NodeAnnouncementDecodeErrorZ* arg_conv = (LDKCResult_NodeAnnouncementDecodeErrorZ*)(arg & ~1);
+       LDKCResult_NodeAnnouncementDecodeErrorZ* arg_conv = (LDKCResult_NodeAnnouncementDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_NodeAnnouncementDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAnnouncementDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_NodeAnnouncementDecodeErrorZ* orig_conv = (LDKCResult_NodeAnnouncementDecodeErrorZ*)(orig & ~1);
+       LDKCResult_NodeAnnouncementDecodeErrorZ* orig_conv = (LDKCResult_NodeAnnouncementDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_NodeAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAnnouncementDecodeErrorZ), "LDKCResult_NodeAnnouncementDecodeErrorZ");
        *ret_conv = CResult_NodeAnnouncementDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1QueryShortChannelIdsDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKQueryShortChannelIds o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = QueryShortChannelIds_clone(&o_conv);
        LDKCResult_QueryShortChannelIdsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_QueryShortChannelIdsDecodeErrorZ), "LDKCResult_QueryShortChannelIdsDecodeErrorZ");
        *ret_conv = CResult_QueryShortChannelIdsDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1QueryShortChannelIdsDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_QueryShortChannelIdsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_QueryShortChannelIdsDecodeErrorZ), "LDKCResult_QueryShortChannelIdsDecodeErrorZ");
        *ret_conv = CResult_QueryShortChannelIdsDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1QueryShortChannelIdsDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_QueryShortChannelIdsDecodeErrorZ* o_conv = (LDKCResult_QueryShortChannelIdsDecodeErrorZ*)(o & ~1);
+       LDKCResult_QueryShortChannelIdsDecodeErrorZ* o_conv = (LDKCResult_QueryShortChannelIdsDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_QueryShortChannelIdsDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1QueryShortChannelIdsDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_QueryShortChannelIdsDecodeErrorZ _res_conv = *(LDKCResult_QueryShortChannelIdsDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_QueryShortChannelIdsDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_QueryShortChannelIdsDecodeErrorZ_clone_ptr(LDKCResult_QueryShortChannelIdsDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_QueryShortChannelIdsDecodeErrorZ_clone_ptr(LDKCResult_QueryShortChannelIdsDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_QueryShortChannelIdsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_QueryShortChannelIdsDecodeErrorZ), "LDKCResult_QueryShortChannelIdsDecodeErrorZ");
        *ret_conv = CResult_QueryShortChannelIdsDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1QueryShortChannelIdsDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_QueryShortChannelIdsDecodeErrorZ* arg_conv = (LDKCResult_QueryShortChannelIdsDecodeErrorZ*)(arg & ~1);
+       LDKCResult_QueryShortChannelIdsDecodeErrorZ* arg_conv = (LDKCResult_QueryShortChannelIdsDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_QueryShortChannelIdsDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1QueryShortChannelIdsDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_QueryShortChannelIdsDecodeErrorZ* orig_conv = (LDKCResult_QueryShortChannelIdsDecodeErrorZ*)(orig & ~1);
+       LDKCResult_QueryShortChannelIdsDecodeErrorZ* orig_conv = (LDKCResult_QueryShortChannelIdsDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_QueryShortChannelIdsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_QueryShortChannelIdsDecodeErrorZ), "LDKCResult_QueryShortChannelIdsDecodeErrorZ");
        *ret_conv = CResult_QueryShortChannelIdsDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ReplyShortChannelIdsEndDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKReplyShortChannelIdsEnd o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = ReplyShortChannelIdsEnd_clone(&o_conv);
        LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ), "LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ");
        *ret_conv = CResult_ReplyShortChannelIdsEndDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ReplyShortChannelIdsEndDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ), "LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ");
        *ret_conv = CResult_ReplyShortChannelIdsEndDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1ReplyShortChannelIdsEndDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ* o_conv = (LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ*)(o & ~1);
+       LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ* o_conv = (LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_ReplyShortChannelIdsEndDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ReplyShortChannelIdsEndDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ _res_conv = *(LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_ReplyShortChannelIdsEndDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_ReplyShortChannelIdsEndDecodeErrorZ_clone_ptr(LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_ReplyShortChannelIdsEndDecodeErrorZ_clone_ptr(LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ), "LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ");
        *ret_conv = CResult_ReplyShortChannelIdsEndDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ReplyShortChannelIdsEndDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ* arg_conv = (LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ*)(arg & ~1);
+       LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ* arg_conv = (LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_ReplyShortChannelIdsEndDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ReplyShortChannelIdsEndDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ* orig_conv = (LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ*)(orig & ~1);
+       LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ* orig_conv = (LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ), "LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ");
        *ret_conv = CResult_ReplyShortChannelIdsEndDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1QueryChannelRangeDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKQueryChannelRange o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = QueryChannelRange_clone(&o_conv);
        LDKCResult_QueryChannelRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_QueryChannelRangeDecodeErrorZ), "LDKCResult_QueryChannelRangeDecodeErrorZ");
        *ret_conv = CResult_QueryChannelRangeDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1QueryChannelRangeDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_QueryChannelRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_QueryChannelRangeDecodeErrorZ), "LDKCResult_QueryChannelRangeDecodeErrorZ");
        *ret_conv = CResult_QueryChannelRangeDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1QueryChannelRangeDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_QueryChannelRangeDecodeErrorZ* o_conv = (LDKCResult_QueryChannelRangeDecodeErrorZ*)(o & ~1);
+       LDKCResult_QueryChannelRangeDecodeErrorZ* o_conv = (LDKCResult_QueryChannelRangeDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_QueryChannelRangeDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1QueryChannelRangeDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_QueryChannelRangeDecodeErrorZ _res_conv = *(LDKCResult_QueryChannelRangeDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_QueryChannelRangeDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_QueryChannelRangeDecodeErrorZ_clone_ptr(LDKCResult_QueryChannelRangeDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_QueryChannelRangeDecodeErrorZ_clone_ptr(LDKCResult_QueryChannelRangeDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_QueryChannelRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_QueryChannelRangeDecodeErrorZ), "LDKCResult_QueryChannelRangeDecodeErrorZ");
        *ret_conv = CResult_QueryChannelRangeDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1QueryChannelRangeDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_QueryChannelRangeDecodeErrorZ* arg_conv = (LDKCResult_QueryChannelRangeDecodeErrorZ*)(arg & ~1);
+       LDKCResult_QueryChannelRangeDecodeErrorZ* arg_conv = (LDKCResult_QueryChannelRangeDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_QueryChannelRangeDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1QueryChannelRangeDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_QueryChannelRangeDecodeErrorZ* orig_conv = (LDKCResult_QueryChannelRangeDecodeErrorZ*)(orig & ~1);
+       LDKCResult_QueryChannelRangeDecodeErrorZ* orig_conv = (LDKCResult_QueryChannelRangeDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_QueryChannelRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_QueryChannelRangeDecodeErrorZ), "LDKCResult_QueryChannelRangeDecodeErrorZ");
        *ret_conv = CResult_QueryChannelRangeDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ReplyChannelRangeDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKReplyChannelRange o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = ReplyChannelRange_clone(&o_conv);
        LDKCResult_ReplyChannelRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ReplyChannelRangeDecodeErrorZ), "LDKCResult_ReplyChannelRangeDecodeErrorZ");
        *ret_conv = CResult_ReplyChannelRangeDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ReplyChannelRangeDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_ReplyChannelRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ReplyChannelRangeDecodeErrorZ), "LDKCResult_ReplyChannelRangeDecodeErrorZ");
        *ret_conv = CResult_ReplyChannelRangeDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1ReplyChannelRangeDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_ReplyChannelRangeDecodeErrorZ* o_conv = (LDKCResult_ReplyChannelRangeDecodeErrorZ*)(o & ~1);
+       LDKCResult_ReplyChannelRangeDecodeErrorZ* o_conv = (LDKCResult_ReplyChannelRangeDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_ReplyChannelRangeDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ReplyChannelRangeDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_ReplyChannelRangeDecodeErrorZ _res_conv = *(LDKCResult_ReplyChannelRangeDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_ReplyChannelRangeDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_ReplyChannelRangeDecodeErrorZ_clone_ptr(LDKCResult_ReplyChannelRangeDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_ReplyChannelRangeDecodeErrorZ_clone_ptr(LDKCResult_ReplyChannelRangeDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_ReplyChannelRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ReplyChannelRangeDecodeErrorZ), "LDKCResult_ReplyChannelRangeDecodeErrorZ");
        *ret_conv = CResult_ReplyChannelRangeDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ReplyChannelRangeDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_ReplyChannelRangeDecodeErrorZ* arg_conv = (LDKCResult_ReplyChannelRangeDecodeErrorZ*)(arg & ~1);
+       LDKCResult_ReplyChannelRangeDecodeErrorZ* arg_conv = (LDKCResult_ReplyChannelRangeDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_ReplyChannelRangeDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ReplyChannelRangeDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_ReplyChannelRangeDecodeErrorZ* orig_conv = (LDKCResult_ReplyChannelRangeDecodeErrorZ*)(orig & ~1);
+       LDKCResult_ReplyChannelRangeDecodeErrorZ* orig_conv = (LDKCResult_ReplyChannelRangeDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_ReplyChannelRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ReplyChannelRangeDecodeErrorZ), "LDKCResult_ReplyChannelRangeDecodeErrorZ");
        *ret_conv = CResult_ReplyChannelRangeDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1GossipTimestampFilterDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKGossipTimestampFilter o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = GossipTimestampFilter_clone(&o_conv);
        LDKCResult_GossipTimestampFilterDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_GossipTimestampFilterDecodeErrorZ), "LDKCResult_GossipTimestampFilterDecodeErrorZ");
        *ret_conv = CResult_GossipTimestampFilterDecodeErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1GossipTimestampFilterDecodeErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
        LDKDecodeError e_conv;
-       e_conv.inner = (void*)(e & (~1));
-       e_conv.is_owned = (e & 1) || (e == 0);
+       e_conv.inner = untag_ptr(e);
+       e_conv.is_owned = ptr_is_owned(e);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(e_conv);
        e_conv = DecodeError_clone(&e_conv);
        LDKCResult_GossipTimestampFilterDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_GossipTimestampFilterDecodeErrorZ), "LDKCResult_GossipTimestampFilterDecodeErrorZ");
        *ret_conv = CResult_GossipTimestampFilterDecodeErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1GossipTimestampFilterDecodeErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_GossipTimestampFilterDecodeErrorZ* o_conv = (LDKCResult_GossipTimestampFilterDecodeErrorZ*)(o & ~1);
+       LDKCResult_GossipTimestampFilterDecodeErrorZ* o_conv = (LDKCResult_GossipTimestampFilterDecodeErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_GossipTimestampFilterDecodeErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1GossipTimestampFilterDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_GossipTimestampFilterDecodeErrorZ _res_conv = *(LDKCResult_GossipTimestampFilterDecodeErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_GossipTimestampFilterDecodeErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_GossipTimestampFilterDecodeErrorZ_clone_ptr(LDKCResult_GossipTimestampFilterDecodeErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_GossipTimestampFilterDecodeErrorZ_clone_ptr(LDKCResult_GossipTimestampFilterDecodeErrorZ *NONNULL_PTR arg) {
        LDKCResult_GossipTimestampFilterDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_GossipTimestampFilterDecodeErrorZ), "LDKCResult_GossipTimestampFilterDecodeErrorZ");
        *ret_conv = CResult_GossipTimestampFilterDecodeErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1GossipTimestampFilterDecodeErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_GossipTimestampFilterDecodeErrorZ* arg_conv = (LDKCResult_GossipTimestampFilterDecodeErrorZ*)(arg & ~1);
+       LDKCResult_GossipTimestampFilterDecodeErrorZ* arg_conv = (LDKCResult_GossipTimestampFilterDecodeErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_GossipTimestampFilterDecodeErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1GossipTimestampFilterDecodeErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_GossipTimestampFilterDecodeErrorZ* orig_conv = (LDKCResult_GossipTimestampFilterDecodeErrorZ*)(orig & ~1);
+       LDKCResult_GossipTimestampFilterDecodeErrorZ* orig_conv = (LDKCResult_GossipTimestampFilterDecodeErrorZ*)untag_ptr(orig);
        LDKCResult_GossipTimestampFilterDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_GossipTimestampFilterDecodeErrorZ), "LDKCResult_GossipTimestampFilterDecodeErrorZ");
        *ret_conv = CResult_GossipTimestampFilterDecodeErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1PhantomRouteHintsZ_1free(JNIEnv *env, jclass clz, int64_tArray _res) {
@@ -24134,8 +22843,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1PhantomRouteHintsZ_1free
        for (size_t t = 0; t < _res_constr.datalen; t++) {
                int64_t _res_conv_19 = _res_vals[t];
                LDKPhantomRouteHints _res_conv_19_conv;
-               _res_conv_19_conv.inner = (void*)(_res_conv_19 & (~1));
-               _res_conv_19_conv.is_owned = (_res_conv_19 & 1) || (_res_conv_19 == 0);
+               _res_conv_19_conv.inner = untag_ptr(_res_conv_19);
+               _res_conv_19_conv.is_owned = ptr_is_owned(_res_conv_19);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(_res_conv_19_conv);
                _res_constr.data[t] = _res_conv_19_conv;
        }
@@ -24145,60 +22854,60 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1PhantomRouteHintsZ_1free
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceSignOrCreationErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKInvoice o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        o_conv = Invoice_clone(&o_conv);
        LDKCResult_InvoiceSignOrCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceSignOrCreationErrorZ), "LDKCResult_InvoiceSignOrCreationErrorZ");
        *ret_conv = CResult_InvoiceSignOrCreationErrorZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceSignOrCreationErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
-       void* e_ptr = (void*)(((uintptr_t)e) & ~1);
+       void* e_ptr = untag_ptr(e);
        CHECK_ACCESS(e_ptr);
        LDKSignOrCreationError e_conv = *(LDKSignOrCreationError*)(e_ptr);
-       e_conv = SignOrCreationError_clone((LDKSignOrCreationError*)(((uintptr_t)e) & ~1));
+       e_conv = SignOrCreationError_clone((LDKSignOrCreationError*)untag_ptr(e));
        LDKCResult_InvoiceSignOrCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceSignOrCreationErrorZ), "LDKCResult_InvoiceSignOrCreationErrorZ");
        *ret_conv = CResult_InvoiceSignOrCreationErrorZ_err(e_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceSignOrCreationErrorZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_InvoiceSignOrCreationErrorZ* o_conv = (LDKCResult_InvoiceSignOrCreationErrorZ*)(o & ~1);
+       LDKCResult_InvoiceSignOrCreationErrorZ* o_conv = (LDKCResult_InvoiceSignOrCreationErrorZ*)untag_ptr(o);
        jboolean ret_conv = CResult_InvoiceSignOrCreationErrorZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceSignOrCreationErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_InvoiceSignOrCreationErrorZ _res_conv = *(LDKCResult_InvoiceSignOrCreationErrorZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_InvoiceSignOrCreationErrorZ_free(_res_conv);
 }
 
-static inline uintptr_t CResult_InvoiceSignOrCreationErrorZ_clone_ptr(LDKCResult_InvoiceSignOrCreationErrorZ *NONNULL_PTR arg) {
+static inline uint64_t CResult_InvoiceSignOrCreationErrorZ_clone_ptr(LDKCResult_InvoiceSignOrCreationErrorZ *NONNULL_PTR arg) {
        LDKCResult_InvoiceSignOrCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceSignOrCreationErrorZ), "LDKCResult_InvoiceSignOrCreationErrorZ");
        *ret_conv = CResult_InvoiceSignOrCreationErrorZ_clone(arg);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceSignOrCreationErrorZ_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKCResult_InvoiceSignOrCreationErrorZ* arg_conv = (LDKCResult_InvoiceSignOrCreationErrorZ*)(arg & ~1);
+       LDKCResult_InvoiceSignOrCreationErrorZ* arg_conv = (LDKCResult_InvoiceSignOrCreationErrorZ*)untag_ptr(arg);
        int64_t ret_conv = CResult_InvoiceSignOrCreationErrorZ_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceSignOrCreationErrorZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCResult_InvoiceSignOrCreationErrorZ* orig_conv = (LDKCResult_InvoiceSignOrCreationErrorZ*)(orig & ~1);
+       LDKCResult_InvoiceSignOrCreationErrorZ* orig_conv = (LDKCResult_InvoiceSignOrCreationErrorZ*)untag_ptr(orig);
        LDKCResult_InvoiceSignOrCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceSignOrCreationErrorZ), "LDKCResult_InvoiceSignOrCreationErrorZ");
        *ret_conv = CResult_InvoiceSignOrCreationErrorZ_clone(orig_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1FilterZ_1some(JNIEnv *env, jclass clz, int64_t o) {
-       void* o_ptr = (void*)(((uintptr_t)o) & ~1);
+       void* o_ptr = untag_ptr(o);
        CHECK_ACCESS(o_ptr);
        LDKFilter o_conv = *(LDKFilter*)(o_ptr);
        if (o_conv.free == LDKFilter_JCalls_free) {
@@ -24207,55 +22916,56 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1FilterZ_1some(JNIE
        }
        LDKCOption_FilterZ *ret_copy = MALLOC(sizeof(LDKCOption_FilterZ), "LDKCOption_FilterZ");
        *ret_copy = COption_FilterZ_some(o_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1FilterZ_1none(JNIEnv *env, jclass clz) {
        LDKCOption_FilterZ *ret_copy = MALLOC(sizeof(LDKCOption_FilterZ), "LDKCOption_FilterZ");
        *ret_copy = COption_FilterZ_none();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1FilterZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCOption_FilterZ _res_conv = *(LDKCOption_FilterZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        COption_FilterZ_free(_res_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1LockedChannelMonitorNoneZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
        LDKLockedChannelMonitor o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = (o & 1) || (o == 0);
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
        // WARNING: we need a move here but no clone is available for LDKLockedChannelMonitor
+       
        LDKCResult_LockedChannelMonitorNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_LockedChannelMonitorNoneZ), "LDKCResult_LockedChannelMonitorNoneZ");
        *ret_conv = CResult_LockedChannelMonitorNoneZ_ok(o_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1LockedChannelMonitorNoneZ_1err(JNIEnv *env, jclass clz) {
        LDKCResult_LockedChannelMonitorNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_LockedChannelMonitorNoneZ), "LDKCResult_LockedChannelMonitorNoneZ");
        *ret_conv = CResult_LockedChannelMonitorNoneZ_err();
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CResult_1LockedChannelMonitorNoneZ_1is_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_LockedChannelMonitorNoneZ* o_conv = (LDKCResult_LockedChannelMonitorNoneZ*)(o & ~1);
+       LDKCResult_LockedChannelMonitorNoneZ* o_conv = (LDKCResult_LockedChannelMonitorNoneZ*)untag_ptr(o);
        jboolean ret_conv = CResult_LockedChannelMonitorNoneZ_is_ok(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1LockedChannelMonitorNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
-       if ((_res & 1) != 0) return;
-       void* _res_ptr = (void*)(((uintptr_t)_res) & ~1);
+       if (!ptr_is_owned(_res)) return;
+       void* _res_ptr = untag_ptr(_res);
        CHECK_ACCESS(_res_ptr);
        LDKCResult_LockedChannelMonitorNoneZ _res_conv = *(LDKCResult_LockedChannelMonitorNoneZ*)(_res_ptr);
-       FREE((void*)_res);
+       FREE(untag_ptr(_res));
        CResult_LockedChannelMonitorNoneZ_free(_res_conv);
 }
 
@@ -24270,8 +22980,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1OutPointZ_1free(JNIEnv *
        for (size_t k = 0; k < _res_constr.datalen; k++) {
                int64_t _res_conv_10 = _res_vals[k];
                LDKOutPoint _res_conv_10_conv;
-               _res_conv_10_conv.inner = (void*)(_res_conv_10 & (~1));
-               _res_conv_10_conv.is_owned = (_res_conv_10 & 1) || (_res_conv_10 == 0);
+               _res_conv_10_conv.inner = untag_ptr(_res_conv_10);
+               _res_conv_10_conv.is_owned = ptr_is_owned(_res_conv_10);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(_res_conv_10_conv);
                _res_constr.data[k] = _res_conv_10_conv;
        }
@@ -24280,31 +22990,31 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1OutPointZ_1free(JNIEnv *
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PaymentPurpose_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKPaymentPurpose this_ptr_conv = *(LDKPaymentPurpose*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        PaymentPurpose_free(this_ptr_conv);
 }
 
-static inline uintptr_t PaymentPurpose_clone_ptr(LDKPaymentPurpose *NONNULL_PTR arg) {
+static inline uint64_t PaymentPurpose_clone_ptr(LDKPaymentPurpose *NONNULL_PTR arg) {
        LDKPaymentPurpose *ret_copy = MALLOC(sizeof(LDKPaymentPurpose), "LDKPaymentPurpose");
        *ret_copy = PaymentPurpose_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentPurpose_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKPaymentPurpose* arg_conv = (LDKPaymentPurpose*)arg;
+       LDKPaymentPurpose* arg_conv = (LDKPaymentPurpose*)untag_ptr(arg);
        int64_t ret_conv = PaymentPurpose_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentPurpose_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKPaymentPurpose* orig_conv = (LDKPaymentPurpose*)orig;
+       LDKPaymentPurpose* orig_conv = (LDKPaymentPurpose*)untag_ptr(orig);
        LDKPaymentPurpose *ret_copy = MALLOC(sizeof(LDKPaymentPurpose), "LDKPaymentPurpose");
        *ret_copy = PaymentPurpose_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24317,7 +23027,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentPurpose_1invoice_1pa
        (*env)->GetByteArrayRegion(env, payment_secret, 0, 32, payment_secret_ref.data);
        LDKPaymentPurpose *ret_copy = MALLOC(sizeof(LDKPaymentPurpose), "LDKPaymentPurpose");
        *ret_copy = PaymentPurpose_invoice_payment(payment_preimage_ref, payment_secret_ref);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24327,12 +23037,12 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentPurpose_1spontaneous
        (*env)->GetByteArrayRegion(env, a, 0, 32, a_ref.data);
        LDKPaymentPurpose *ret_copy = MALLOC(sizeof(LDKPaymentPurpose), "LDKPaymentPurpose");
        *ret_copy = PaymentPurpose_spontaneous_payment(a_ref);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_PaymentPurpose_1write(JNIEnv *env, jclass clz, int64_t obj) {
-       LDKPaymentPurpose* obj_conv = (LDKPaymentPurpose*)obj;
+       LDKPaymentPurpose* obj_conv = (LDKPaymentPurpose*)untag_ptr(obj);
        LDKCVec_u8Z ret_var = PaymentPurpose_write(obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -24347,35 +23057,35 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentPurpose_1read(JNIEnv
        LDKCResult_PaymentPurposeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentPurposeDecodeErrorZ), "LDKCResult_PaymentPurposeDecodeErrorZ");
        *ret_conv = PaymentPurpose_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ClosureReason_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKClosureReason this_ptr_conv = *(LDKClosureReason*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        ClosureReason_free(this_ptr_conv);
 }
 
-static inline uintptr_t ClosureReason_clone_ptr(LDKClosureReason *NONNULL_PTR arg) {
+static inline uint64_t ClosureReason_clone_ptr(LDKClosureReason *NONNULL_PTR arg) {
        LDKClosureReason *ret_copy = MALLOC(sizeof(LDKClosureReason), "LDKClosureReason");
        *ret_copy = ClosureReason_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosureReason_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKClosureReason* arg_conv = (LDKClosureReason*)arg;
+       LDKClosureReason* arg_conv = (LDKClosureReason*)untag_ptr(arg);
        int64_t ret_conv = ClosureReason_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosureReason_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKClosureReason* orig_conv = (LDKClosureReason*)orig;
+       LDKClosureReason* orig_conv = (LDKClosureReason*)untag_ptr(orig);
        LDKClosureReason *ret_copy = MALLOC(sizeof(LDKClosureReason), "LDKClosureReason");
        *ret_copy = ClosureReason_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24383,35 +23093,35 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosureReason_1counterparty
        LDKStr peer_msg_conv = java_to_owned_str(env, peer_msg);
        LDKClosureReason *ret_copy = MALLOC(sizeof(LDKClosureReason), "LDKClosureReason");
        *ret_copy = ClosureReason_counterparty_force_closed(peer_msg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosureReason_1holder_1force_1closed(JNIEnv *env, jclass clz) {
        LDKClosureReason *ret_copy = MALLOC(sizeof(LDKClosureReason), "LDKClosureReason");
        *ret_copy = ClosureReason_holder_force_closed();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosureReason_1cooperative_1closure(JNIEnv *env, jclass clz) {
        LDKClosureReason *ret_copy = MALLOC(sizeof(LDKClosureReason), "LDKClosureReason");
        *ret_copy = ClosureReason_cooperative_closure();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosureReason_1commitment_1tx_1confirmed(JNIEnv *env, jclass clz) {
        LDKClosureReason *ret_copy = MALLOC(sizeof(LDKClosureReason), "LDKClosureReason");
        *ret_copy = ClosureReason_commitment_tx_confirmed();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosureReason_1funding_1timed_1out(JNIEnv *env, jclass clz) {
        LDKClosureReason *ret_copy = MALLOC(sizeof(LDKClosureReason), "LDKClosureReason");
        *ret_copy = ClosureReason_funding_timed_out();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24419,26 +23129,26 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosureReason_1processing_1
        LDKStr err_conv = java_to_owned_str(env, err);
        LDKClosureReason *ret_copy = MALLOC(sizeof(LDKClosureReason), "LDKClosureReason");
        *ret_copy = ClosureReason_processing_error(err_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosureReason_1disconnected_1peer(JNIEnv *env, jclass clz) {
        LDKClosureReason *ret_copy = MALLOC(sizeof(LDKClosureReason), "LDKClosureReason");
        *ret_copy = ClosureReason_disconnected_peer();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosureReason_1outdated_1channel_1manager(JNIEnv *env, jclass clz) {
        LDKClosureReason *ret_copy = MALLOC(sizeof(LDKClosureReason), "LDKClosureReason");
        *ret_copy = ClosureReason_outdated_channel_manager();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ClosureReason_1write(JNIEnv *env, jclass clz, int64_t obj) {
-       LDKClosureReason* obj_conv = (LDKClosureReason*)obj;
+       LDKClosureReason* obj_conv = (LDKClosureReason*)untag_ptr(obj);
        LDKCVec_u8Z ret_var = ClosureReason_write(obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -24453,35 +23163,35 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosureReason_1read(JNIEnv
        LDKCResult_COption_ClosureReasonZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_ClosureReasonZDecodeErrorZ), "LDKCResult_COption_ClosureReasonZDecodeErrorZ");
        *ret_conv = ClosureReason_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_HTLCDestination_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKHTLCDestination this_ptr_conv = *(LDKHTLCDestination*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        HTLCDestination_free(this_ptr_conv);
 }
 
-static inline uintptr_t HTLCDestination_clone_ptr(LDKHTLCDestination *NONNULL_PTR arg) {
+static inline uint64_t HTLCDestination_clone_ptr(LDKHTLCDestination *NONNULL_PTR arg) {
        LDKHTLCDestination *ret_copy = MALLOC(sizeof(LDKHTLCDestination), "LDKHTLCDestination");
        *ret_copy = HTLCDestination_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_HTLCDestination_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKHTLCDestination* arg_conv = (LDKHTLCDestination*)arg;
+       LDKHTLCDestination* arg_conv = (LDKHTLCDestination*)untag_ptr(arg);
        int64_t ret_conv = HTLCDestination_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_HTLCDestination_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKHTLCDestination* orig_conv = (LDKHTLCDestination*)orig;
+       LDKHTLCDestination* orig_conv = (LDKHTLCDestination*)untag_ptr(orig);
        LDKHTLCDestination *ret_copy = MALLOC(sizeof(LDKHTLCDestination), "LDKHTLCDestination");
        *ret_copy = HTLCDestination_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24494,14 +23204,14 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_HTLCDestination_1next_1hop_
        (*env)->GetByteArrayRegion(env, channel_id, 0, 32, channel_id_ref.data);
        LDKHTLCDestination *ret_copy = MALLOC(sizeof(LDKHTLCDestination), "LDKHTLCDestination");
        *ret_copy = HTLCDestination_next_hop_channel(node_id_ref, channel_id_ref);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_HTLCDestination_1unknown_1next_1hop(JNIEnv *env, jclass clz, int64_t requested_forward_scid) {
        LDKHTLCDestination *ret_copy = MALLOC(sizeof(LDKHTLCDestination), "LDKHTLCDestination");
        *ret_copy = HTLCDestination_unknown_next_hop(requested_forward_scid);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24511,12 +23221,12 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_HTLCDestination_1failed_1pa
        (*env)->GetByteArrayRegion(env, payment_hash, 0, 32, payment_hash_ref.data);
        LDKHTLCDestination *ret_copy = MALLOC(sizeof(LDKHTLCDestination), "LDKHTLCDestination");
        *ret_copy = HTLCDestination_failed_payment(payment_hash_ref);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_HTLCDestination_1write(JNIEnv *env, jclass clz, int64_t obj) {
-       LDKHTLCDestination* obj_conv = (LDKHTLCDestination*)obj;
+       LDKHTLCDestination* obj_conv = (LDKHTLCDestination*)untag_ptr(obj);
        LDKCVec_u8Z ret_var = HTLCDestination_write(obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -24531,35 +23241,35 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_HTLCDestination_1read(JNIEn
        LDKCResult_COption_HTLCDestinationZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_HTLCDestinationZDecodeErrorZ), "LDKCResult_COption_HTLCDestinationZDecodeErrorZ");
        *ret_conv = HTLCDestination_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Event_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKEvent this_ptr_conv = *(LDKEvent*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        Event_free(this_ptr_conv);
 }
 
-static inline uintptr_t Event_clone_ptr(LDKEvent *NONNULL_PTR arg) {
+static inline uint64_t Event_clone_ptr(LDKEvent *NONNULL_PTR arg) {
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKEvent* arg_conv = (LDKEvent*)arg;
+       LDKEvent* arg_conv = (LDKEvent*)untag_ptr(arg);
        int64_t ret_conv = Event_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKEvent* orig_conv = (LDKEvent*)orig;
+       LDKEvent* orig_conv = (LDKEvent*)untag_ptr(orig);
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24576,7 +23286,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1funding_1generation_
        (*env)->GetByteArrayRegion(env, output_script, 0, output_script_ref.datalen, output_script_ref.data);
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_funding_generation_ready(temporary_channel_id_ref, counterparty_node_id_ref, channel_value_satoshis, output_script_ref, user_channel_id);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24584,13 +23294,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1payment_1received(JN
        LDKThirtyTwoBytes payment_hash_ref;
        CHECK((*env)->GetArrayLength(env, payment_hash) == 32);
        (*env)->GetByteArrayRegion(env, payment_hash, 0, 32, payment_hash_ref.data);
-       void* purpose_ptr = (void*)(((uintptr_t)purpose) & ~1);
+       void* purpose_ptr = untag_ptr(purpose);
        CHECK_ACCESS(purpose_ptr);
        LDKPaymentPurpose purpose_conv = *(LDKPaymentPurpose*)(purpose_ptr);
-       purpose_conv = PaymentPurpose_clone((LDKPaymentPurpose*)(((uintptr_t)purpose) & ~1));
+       purpose_conv = PaymentPurpose_clone((LDKPaymentPurpose*)untag_ptr(purpose));
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_payment_received(payment_hash_ref, amount_msat, purpose_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24598,13 +23308,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1payment_1claimed(JNI
        LDKThirtyTwoBytes payment_hash_ref;
        CHECK((*env)->GetArrayLength(env, payment_hash) == 32);
        (*env)->GetByteArrayRegion(env, payment_hash, 0, 32, payment_hash_ref.data);
-       void* purpose_ptr = (void*)(((uintptr_t)purpose) & ~1);
+       void* purpose_ptr = untag_ptr(purpose);
        CHECK_ACCESS(purpose_ptr);
        LDKPaymentPurpose purpose_conv = *(LDKPaymentPurpose*)(purpose_ptr);
-       purpose_conv = PaymentPurpose_clone((LDKPaymentPurpose*)(((uintptr_t)purpose) & ~1));
+       purpose_conv = PaymentPurpose_clone((LDKPaymentPurpose*)untag_ptr(purpose));
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_payment_claimed(payment_hash_ref, amount_msat, purpose_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24618,13 +23328,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1payment_1sent(JNIEnv
        LDKThirtyTwoBytes payment_hash_ref;
        CHECK((*env)->GetArrayLength(env, payment_hash) == 32);
        (*env)->GetByteArrayRegion(env, payment_hash, 0, 32, payment_hash_ref.data);
-       void* fee_paid_msat_ptr = (void*)(((uintptr_t)fee_paid_msat) & ~1);
+       void* fee_paid_msat_ptr = untag_ptr(fee_paid_msat);
        CHECK_ACCESS(fee_paid_msat_ptr);
        LDKCOption_u64Z fee_paid_msat_conv = *(LDKCOption_u64Z*)(fee_paid_msat_ptr);
-       fee_paid_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)fee_paid_msat) & ~1));
+       fee_paid_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(fee_paid_msat));
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_payment_sent(payment_id_ref, payment_preimage_ref, payment_hash_ref, fee_paid_msat_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24637,7 +23347,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1payment_1failed(JNIE
        (*env)->GetByteArrayRegion(env, payment_hash, 0, 32, payment_hash_ref.data);
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_payment_failed(payment_id_ref, payment_hash_ref);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24658,8 +23368,8 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1payment_1path_1succe
        for (size_t k = 0; k < path_constr.datalen; k++) {
                int64_t path_conv_10 = path_vals[k];
                LDKRouteHop path_conv_10_conv;
-               path_conv_10_conv.inner = (void*)(path_conv_10 & (~1));
-               path_conv_10_conv.is_owned = (path_conv_10 & 1) || (path_conv_10 == 0);
+               path_conv_10_conv.inner = untag_ptr(path_conv_10);
+               path_conv_10_conv.is_owned = ptr_is_owned(path_conv_10);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(path_conv_10_conv);
                path_conv_10_conv = RouteHop_clone(&path_conv_10_conv);
                path_constr.data[k] = path_conv_10_conv;
@@ -24667,7 +23377,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1payment_1path_1succe
        (*env)->ReleaseLongArrayElements(env, path, path_vals, 0);
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_payment_path_successful(payment_id_ref, payment_hash_ref, path_constr);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24678,10 +23388,10 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1payment_1path_1faile
        LDKThirtyTwoBytes payment_hash_ref;
        CHECK((*env)->GetArrayLength(env, payment_hash) == 32);
        (*env)->GetByteArrayRegion(env, payment_hash, 0, 32, payment_hash_ref.data);
-       void* network_update_ptr = (void*)(((uintptr_t)network_update) & ~1);
+       void* network_update_ptr = untag_ptr(network_update);
        CHECK_ACCESS(network_update_ptr);
        LDKCOption_NetworkUpdateZ network_update_conv = *(LDKCOption_NetworkUpdateZ*)(network_update_ptr);
-       network_update_conv = COption_NetworkUpdateZ_clone((LDKCOption_NetworkUpdateZ*)(((uintptr_t)network_update) & ~1));
+       network_update_conv = COption_NetworkUpdateZ_clone((LDKCOption_NetworkUpdateZ*)untag_ptr(network_update));
        LDKCVec_RouteHopZ path_constr;
        path_constr.datalen = (*env)->GetArrayLength(env, path);
        if (path_constr.datalen > 0)
@@ -24692,25 +23402,25 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1payment_1path_1faile
        for (size_t k = 0; k < path_constr.datalen; k++) {
                int64_t path_conv_10 = path_vals[k];
                LDKRouteHop path_conv_10_conv;
-               path_conv_10_conv.inner = (void*)(path_conv_10 & (~1));
-               path_conv_10_conv.is_owned = (path_conv_10 & 1) || (path_conv_10 == 0);
+               path_conv_10_conv.inner = untag_ptr(path_conv_10);
+               path_conv_10_conv.is_owned = ptr_is_owned(path_conv_10);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(path_conv_10_conv);
                path_conv_10_conv = RouteHop_clone(&path_conv_10_conv);
                path_constr.data[k] = path_conv_10_conv;
        }
        (*env)->ReleaseLongArrayElements(env, path, path_vals, 0);
-       void* short_channel_id_ptr = (void*)(((uintptr_t)short_channel_id) & ~1);
+       void* short_channel_id_ptr = untag_ptr(short_channel_id);
        CHECK_ACCESS(short_channel_id_ptr);
        LDKCOption_u64Z short_channel_id_conv = *(LDKCOption_u64Z*)(short_channel_id_ptr);
-       short_channel_id_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)short_channel_id) & ~1));
+       short_channel_id_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(short_channel_id));
        LDKRouteParameters retry_conv;
-       retry_conv.inner = (void*)(retry & (~1));
-       retry_conv.is_owned = (retry & 1) || (retry == 0);
+       retry_conv.inner = untag_ptr(retry);
+       retry_conv.is_owned = ptr_is_owned(retry);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(retry_conv);
        retry_conv = RouteParameters_clone(&retry_conv);
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_payment_path_failed(payment_id_ref, payment_hash_ref, rejected_by_dest, network_update_conv, all_paths_failed, path_constr, short_channel_id_conv, retry_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24731,8 +23441,8 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1probe_1successful(JN
        for (size_t k = 0; k < path_constr.datalen; k++) {
                int64_t path_conv_10 = path_vals[k];
                LDKRouteHop path_conv_10_conv;
-               path_conv_10_conv.inner = (void*)(path_conv_10 & (~1));
-               path_conv_10_conv.is_owned = (path_conv_10 & 1) || (path_conv_10 == 0);
+               path_conv_10_conv.inner = untag_ptr(path_conv_10);
+               path_conv_10_conv.is_owned = ptr_is_owned(path_conv_10);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(path_conv_10_conv);
                path_conv_10_conv = RouteHop_clone(&path_conv_10_conv);
                path_constr.data[k] = path_conv_10_conv;
@@ -24740,7 +23450,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1probe_1successful(JN
        (*env)->ReleaseLongArrayElements(env, path, path_vals, 0);
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_probe_successful(payment_id_ref, payment_hash_ref, path_constr);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24761,27 +23471,27 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1probe_1failed(JNIEnv
        for (size_t k = 0; k < path_constr.datalen; k++) {
                int64_t path_conv_10 = path_vals[k];
                LDKRouteHop path_conv_10_conv;
-               path_conv_10_conv.inner = (void*)(path_conv_10 & (~1));
-               path_conv_10_conv.is_owned = (path_conv_10 & 1) || (path_conv_10 == 0);
+               path_conv_10_conv.inner = untag_ptr(path_conv_10);
+               path_conv_10_conv.is_owned = ptr_is_owned(path_conv_10);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(path_conv_10_conv);
                path_conv_10_conv = RouteHop_clone(&path_conv_10_conv);
                path_constr.data[k] = path_conv_10_conv;
        }
        (*env)->ReleaseLongArrayElements(env, path, path_vals, 0);
-       void* short_channel_id_ptr = (void*)(((uintptr_t)short_channel_id) & ~1);
+       void* short_channel_id_ptr = untag_ptr(short_channel_id);
        CHECK_ACCESS(short_channel_id_ptr);
        LDKCOption_u64Z short_channel_id_conv = *(LDKCOption_u64Z*)(short_channel_id_ptr);
-       short_channel_id_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)short_channel_id) & ~1));
+       short_channel_id_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(short_channel_id));
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_probe_failed(payment_id_ref, payment_hash_ref, path_constr, short_channel_id_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1pending_1htlcs_1forwardable(JNIEnv *env, jclass clz, int64_t time_forwardable) {
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_pending_htlcs_forwardable(time_forwardable);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24795,16 +23505,16 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1spendable_1outputs(J
        int64_t* outputs_vals = (*env)->GetLongArrayElements (env, outputs, NULL);
        for (size_t b = 0; b < outputs_constr.datalen; b++) {
                int64_t outputs_conv_27 = outputs_vals[b];
-               void* outputs_conv_27_ptr = (void*)(((uintptr_t)outputs_conv_27) & ~1);
+               void* outputs_conv_27_ptr = untag_ptr(outputs_conv_27);
                CHECK_ACCESS(outputs_conv_27_ptr);
                LDKSpendableOutputDescriptor outputs_conv_27_conv = *(LDKSpendableOutputDescriptor*)(outputs_conv_27_ptr);
-               outputs_conv_27_conv = SpendableOutputDescriptor_clone((LDKSpendableOutputDescriptor*)(((uintptr_t)outputs_conv_27) & ~1));
+               outputs_conv_27_conv = SpendableOutputDescriptor_clone((LDKSpendableOutputDescriptor*)untag_ptr(outputs_conv_27));
                outputs_constr.data[b] = outputs_conv_27_conv;
        }
        (*env)->ReleaseLongArrayElements(env, outputs, outputs_vals, 0);
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_spendable_outputs(outputs_constr);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24815,13 +23525,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1payment_1forwarded(J
        LDKThirtyTwoBytes next_channel_id_ref;
        CHECK((*env)->GetArrayLength(env, next_channel_id) == 32);
        (*env)->GetByteArrayRegion(env, next_channel_id, 0, 32, next_channel_id_ref.data);
-       void* fee_earned_msat_ptr = (void*)(((uintptr_t)fee_earned_msat) & ~1);
+       void* fee_earned_msat_ptr = untag_ptr(fee_earned_msat);
        CHECK_ACCESS(fee_earned_msat_ptr);
        LDKCOption_u64Z fee_earned_msat_conv = *(LDKCOption_u64Z*)(fee_earned_msat_ptr);
-       fee_earned_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)fee_earned_msat) & ~1));
+       fee_earned_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(fee_earned_msat));
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_payment_forwarded(prev_channel_id_ref, next_channel_id_ref, fee_earned_msat_conv, claim_from_onchain_tx);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24829,13 +23539,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1channel_1closed(JNIE
        LDKThirtyTwoBytes channel_id_ref;
        CHECK((*env)->GetArrayLength(env, channel_id) == 32);
        (*env)->GetByteArrayRegion(env, channel_id, 0, 32, channel_id_ref.data);
-       void* reason_ptr = (void*)(((uintptr_t)reason) & ~1);
+       void* reason_ptr = untag_ptr(reason);
        CHECK_ACCESS(reason_ptr);
        LDKClosureReason reason_conv = *(LDKClosureReason*)(reason_ptr);
-       reason_conv = ClosureReason_clone((LDKClosureReason*)(((uintptr_t)reason) & ~1));
+       reason_conv = ClosureReason_clone((LDKClosureReason*)untag_ptr(reason));
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_channel_closed(channel_id_ref, user_channel_id, reason_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24850,7 +23560,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1discard_1funding(JNI
        transaction_ref.data_is_owned = true;
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_discard_funding(channel_id_ref, transaction_ref);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24862,13 +23572,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1open_1channel_1reque
        CHECK((*env)->GetArrayLength(env, counterparty_node_id) == 33);
        (*env)->GetByteArrayRegion(env, counterparty_node_id, 0, 33, counterparty_node_id_ref.compressed_form);
        LDKChannelTypeFeatures channel_type_conv;
-       channel_type_conv.inner = (void*)(channel_type & (~1));
-       channel_type_conv.is_owned = (channel_type & 1) || (channel_type == 0);
+       channel_type_conv.inner = untag_ptr(channel_type);
+       channel_type_conv.is_owned = ptr_is_owned(channel_type);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_type_conv);
        channel_type_conv = ChannelTypeFeatures_clone(&channel_type_conv);
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_open_channel_request(temporary_channel_id_ref, counterparty_node_id_ref, funding_satoshis, push_msat, channel_type_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24876,18 +23586,18 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1htlchandling_1failed
        LDKThirtyTwoBytes prev_channel_id_ref;
        CHECK((*env)->GetArrayLength(env, prev_channel_id) == 32);
        (*env)->GetByteArrayRegion(env, prev_channel_id, 0, 32, prev_channel_id_ref.data);
-       void* failed_next_destination_ptr = (void*)(((uintptr_t)failed_next_destination) & ~1);
+       void* failed_next_destination_ptr = untag_ptr(failed_next_destination);
        CHECK_ACCESS(failed_next_destination_ptr);
        LDKHTLCDestination failed_next_destination_conv = *(LDKHTLCDestination*)(failed_next_destination_ptr);
-       failed_next_destination_conv = HTLCDestination_clone((LDKHTLCDestination*)(((uintptr_t)failed_next_destination) & ~1));
+       failed_next_destination_conv = HTLCDestination_clone((LDKHTLCDestination*)untag_ptr(failed_next_destination));
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_htlchandling_failed(prev_channel_id_ref, failed_next_destination_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Event_1write(JNIEnv *env, jclass clz, int64_t obj) {
-       LDKEvent* obj_conv = (LDKEvent*)obj;
+       LDKEvent* obj_conv = (LDKEvent*)untag_ptr(obj);
        LDKCVec_u8Z ret_var = Event_write(obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -24902,35 +23612,35 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1read(JNIEnv *env, jc
        LDKCResult_COption_EventZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_EventZDecodeErrorZ), "LDKCResult_COption_EventZDecodeErrorZ");
        *ret_conv = Event_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKMessageSendEvent this_ptr_conv = *(LDKMessageSendEvent*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        MessageSendEvent_free(this_ptr_conv);
 }
 
-static inline uintptr_t MessageSendEvent_clone_ptr(LDKMessageSendEvent *NONNULL_PTR arg) {
+static inline uint64_t MessageSendEvent_clone_ptr(LDKMessageSendEvent *NONNULL_PTR arg) {
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKMessageSendEvent* arg_conv = (LDKMessageSendEvent*)arg;
+       LDKMessageSendEvent* arg_conv = (LDKMessageSendEvent*)untag_ptr(arg);
        int64_t ret_conv = MessageSendEvent_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKMessageSendEvent* orig_conv = (LDKMessageSendEvent*)orig;
+       LDKMessageSendEvent* orig_conv = (LDKMessageSendEvent*)untag_ptr(orig);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24939,13 +23649,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1send_1acc
        CHECK((*env)->GetArrayLength(env, node_id) == 33);
        (*env)->GetByteArrayRegion(env, node_id, 0, 33, node_id_ref.compressed_form);
        LDKAcceptChannel msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = AcceptChannel_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_accept_channel(node_id_ref, msg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24954,13 +23664,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1send_1ope
        CHECK((*env)->GetArrayLength(env, node_id) == 33);
        (*env)->GetByteArrayRegion(env, node_id, 0, 33, node_id_ref.compressed_form);
        LDKOpenChannel msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = OpenChannel_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_open_channel(node_id_ref, msg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24969,13 +23679,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1send_1fun
        CHECK((*env)->GetArrayLength(env, node_id) == 33);
        (*env)->GetByteArrayRegion(env, node_id, 0, 33, node_id_ref.compressed_form);
        LDKFundingCreated msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = FundingCreated_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_funding_created(node_id_ref, msg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24984,13 +23694,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1send_1fun
        CHECK((*env)->GetArrayLength(env, node_id) == 33);
        (*env)->GetByteArrayRegion(env, node_id, 0, 33, node_id_ref.compressed_form);
        LDKFundingSigned msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = FundingSigned_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_funding_signed(node_id_ref, msg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -24999,13 +23709,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1send_1cha
        CHECK((*env)->GetArrayLength(env, node_id) == 33);
        (*env)->GetByteArrayRegion(env, node_id, 0, 33, node_id_ref.compressed_form);
        LDKChannelReady msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = ChannelReady_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_channel_ready(node_id_ref, msg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -25014,13 +23724,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1send_1ann
        CHECK((*env)->GetArrayLength(env, node_id) == 33);
        (*env)->GetByteArrayRegion(env, node_id, 0, 33, node_id_ref.compressed_form);
        LDKAnnouncementSignatures msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = AnnouncementSignatures_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_announcement_signatures(node_id_ref, msg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -25029,13 +23739,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1update_1h
        CHECK((*env)->GetArrayLength(env, node_id) == 33);
        (*env)->GetByteArrayRegion(env, node_id, 0, 33, node_id_ref.compressed_form);
        LDKCommitmentUpdate updates_conv;
-       updates_conv.inner = (void*)(updates & (~1));
-       updates_conv.is_owned = (updates & 1) || (updates == 0);
+       updates_conv.inner = untag_ptr(updates);
+       updates_conv.is_owned = ptr_is_owned(updates);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(updates_conv);
        updates_conv = CommitmentUpdate_clone(&updates_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_update_htlcs(node_id_ref, updates_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -25044,13 +23754,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1send_1rev
        CHECK((*env)->GetArrayLength(env, node_id) == 33);
        (*env)->GetByteArrayRegion(env, node_id, 0, 33, node_id_ref.compressed_form);
        LDKRevokeAndACK msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = RevokeAndACK_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_revoke_and_ack(node_id_ref, msg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -25059,13 +23769,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1send_1clo
        CHECK((*env)->GetArrayLength(env, node_id) == 33);
        (*env)->GetByteArrayRegion(env, node_id, 0, 33, node_id_ref.compressed_form);
        LDKClosingSigned msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = ClosingSigned_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_closing_signed(node_id_ref, msg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -25074,13 +23784,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1send_1shu
        CHECK((*env)->GetArrayLength(env, node_id) == 33);
        (*env)->GetByteArrayRegion(env, node_id, 0, 33, node_id_ref.compressed_form);
        LDKShutdown msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = Shutdown_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_shutdown(node_id_ref, msg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -25089,54 +23799,54 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1send_1cha
        CHECK((*env)->GetArrayLength(env, node_id) == 33);
        (*env)->GetByteArrayRegion(env, node_id, 0, 33, node_id_ref.compressed_form);
        LDKChannelReestablish msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = ChannelReestablish_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_channel_reestablish(node_id_ref, msg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1broadcast_1channel_1announcement(JNIEnv *env, jclass clz, int64_t msg, int64_t update_msg) {
        LDKChannelAnnouncement msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = ChannelAnnouncement_clone(&msg_conv);
        LDKChannelUpdate update_msg_conv;
-       update_msg_conv.inner = (void*)(update_msg & (~1));
-       update_msg_conv.is_owned = (update_msg & 1) || (update_msg == 0);
+       update_msg_conv.inner = untag_ptr(update_msg);
+       update_msg_conv.is_owned = ptr_is_owned(update_msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(update_msg_conv);
        update_msg_conv = ChannelUpdate_clone(&update_msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_broadcast_channel_announcement(msg_conv, update_msg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1broadcast_1node_1announcement(JNIEnv *env, jclass clz, int64_t msg) {
        LDKNodeAnnouncement msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = NodeAnnouncement_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_broadcast_node_announcement(msg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1broadcast_1channel_1update(JNIEnv *env, jclass clz, int64_t msg) {
        LDKChannelUpdate msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = ChannelUpdate_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_broadcast_channel_update(msg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -25145,13 +23855,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1send_1cha
        CHECK((*env)->GetArrayLength(env, node_id) == 33);
        (*env)->GetByteArrayRegion(env, node_id, 0, 33, node_id_ref.compressed_form);
        LDKChannelUpdate msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = ChannelUpdate_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_channel_update(node_id_ref, msg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -25159,13 +23869,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1handle_1e
        LDKPublicKey node_id_ref;
        CHECK((*env)->GetArrayLength(env, node_id) == 33);
        (*env)->GetByteArrayRegion(env, node_id, 0, 33, node_id_ref.compressed_form);
-       void* action_ptr = (void*)(((uintptr_t)action) & ~1);
+       void* action_ptr = untag_ptr(action);
        CHECK_ACCESS(action_ptr);
        LDKErrorAction action_conv = *(LDKErrorAction*)(action_ptr);
-       action_conv = ErrorAction_clone((LDKErrorAction*)(((uintptr_t)action) & ~1));
+       action_conv = ErrorAction_clone((LDKErrorAction*)untag_ptr(action));
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_handle_error(node_id_ref, action_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -25174,13 +23884,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1send_1cha
        CHECK((*env)->GetArrayLength(env, node_id) == 33);
        (*env)->GetByteArrayRegion(env, node_id, 0, 33, node_id_ref.compressed_form);
        LDKQueryChannelRange msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = QueryChannelRange_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_channel_range_query(node_id_ref, msg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -25189,13 +23899,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1send_1sho
        CHECK((*env)->GetArrayLength(env, node_id) == 33);
        (*env)->GetByteArrayRegion(env, node_id, 0, 33, node_id_ref.compressed_form);
        LDKQueryShortChannelIds msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = QueryShortChannelIds_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_short_ids_query(node_id_ref, msg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -25204,13 +23914,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1send_1rep
        CHECK((*env)->GetArrayLength(env, node_id) == 33);
        (*env)->GetByteArrayRegion(env, node_id, 0, 33, node_id_ref.compressed_form);
        LDKReplyChannelRange msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = ReplyChannelRange_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_reply_channel_range(node_id_ref, msg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -25219,69 +23929,69 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1send_1gos
        CHECK((*env)->GetArrayLength(env, node_id) == 33);
        (*env)->GetByteArrayRegion(env, node_id, 0, 33, node_id_ref.compressed_form);
        LDKGossipTimestampFilter msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = GossipTimestampFilter_clone(&msg_conv);
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_send_gossip_timestamp_filter(node_id_ref, msg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_MessageSendEventsProvider_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKMessageSendEventsProvider this_ptr_conv = *(LDKMessageSendEventsProvider*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        MessageSendEventsProvider_free(this_ptr_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_EventsProvider_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKEventsProvider this_ptr_conv = *(LDKEventsProvider*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        EventsProvider_free(this_ptr_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_EventHandler_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKEventHandler this_ptr_conv = *(LDKEventHandler*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        EventHandler_free(this_ptr_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_APIError_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKAPIError this_ptr_conv = *(LDKAPIError*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        APIError_free(this_ptr_conv);
 }
 
-static inline uintptr_t APIError_clone_ptr(LDKAPIError *NONNULL_PTR arg) {
+static inline uint64_t APIError_clone_ptr(LDKAPIError *NONNULL_PTR arg) {
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = APIError_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_APIError_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKAPIError* arg_conv = (LDKAPIError*)arg;
+       LDKAPIError* arg_conv = (LDKAPIError*)untag_ptr(arg);
        int64_t ret_conv = APIError_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_APIError_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKAPIError* orig_conv = (LDKAPIError*)orig;
+       LDKAPIError* orig_conv = (LDKAPIError*)untag_ptr(orig);
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = APIError_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -25289,7 +23999,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_APIError_1apimisuse_1error(
        LDKStr err_conv = java_to_owned_str(env, err);
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = APIError_apimisuse_error(err_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -25297,7 +24007,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_APIError_1fee_1rate_1too_1h
        LDKStr err_conv = java_to_owned_str(env, err);
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = APIError_fee_rate_too_high(err_conv, feerate);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -25305,7 +24015,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_APIError_1route_1error(JNIE
        LDKStr err_conv = java_to_owned_str(env, err);
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = APIError_route_error(err_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -25313,118 +24023,108 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_APIError_1channel_1unavaila
        LDKStr err_conv = java_to_owned_str(env, err);
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = APIError_channel_unavailable(err_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_APIError_1monitor_1update_1failed(JNIEnv *env, jclass clz) {
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = APIError_monitor_update_failed();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_APIError_1incompatible_1shutdown_1script(JNIEnv *env, jclass clz, int64_t script) {
        LDKShutdownScript script_conv;
-       script_conv.inner = (void*)(script & (~1));
-       script_conv.is_owned = (script & 1) || (script == 0);
+       script_conv.inner = untag_ptr(script);
+       script_conv.is_owned = ptr_is_owned(script);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(script_conv);
        script_conv = ShutdownScript_clone(&script_conv);
        LDKAPIError *ret_copy = MALLOC(sizeof(LDKAPIError), "LDKAPIError");
        *ret_copy = APIError_incompatible_shutdown_script(script_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_BigSize_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKBigSize this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        BigSize_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BigSize_1get_1a(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKBigSize this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = BigSize_get_a(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_BigSize_1set_1a(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKBigSize this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        BigSize_set_a(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BigSize_1new(JNIEnv *env, jclass clz, int64_t a_arg) {
        LDKBigSize ret_var = BigSize_new(a_arg);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Hostname_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKHostname this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        Hostname_free(this_obj_conv);
 }
 
-static inline uintptr_t Hostname_clone_ptr(LDKHostname *NONNULL_PTR arg) {
+static inline uint64_t Hostname_clone_ptr(LDKHostname *NONNULL_PTR arg) {
        LDKHostname ret_var = Hostname_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Hostname_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKHostname arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = Hostname_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Hostname_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKHostname orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKHostname ret_var = Hostname_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_t JNICALL Java_org_ldk_impl_bindings_Hostname_1len(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKHostname this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int8_t ret_conv = Hostname_len(&this_arg_conv);
        return ret_conv;
 }
@@ -25440,7 +24140,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_sign(JNIEnv *env, jclass cl
        LDKCResult_StringErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_StringErrorZ), "LDKCResult_StringErrorZ");
        *ret_conv = sign(msg_ref, sk_ref);
        (*env)->ReleaseByteArrayElements(env, msg, (int8_t*)msg_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_recover_1pk(JNIEnv *env, jclass clz, int8_tArray msg, jstring sig) {
@@ -25451,7 +24151,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_recover_1pk(JNIEnv *env, jc
        LDKCResult_PublicKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PublicKeyErrorZ), "LDKCResult_PublicKeyErrorZ");
        *ret_conv = recover_pk(msg_ref, sig_conv);
        (*env)->ReleaseByteArrayElements(env, msg, (int8_t*)msg_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_verify(JNIEnv *env, jclass clz, int8_tArray msg, jstring sig, int8_tArray pk) {
@@ -25493,16 +24193,16 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_construct_1invoice_1pre
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Persister_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKPersister this_ptr_conv = *(LDKPersister*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        Persister_free(this_ptr_conv);
 }
 
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_Level_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKLevel* orig_conv = (LDKLevel*)(orig & ~1);
+       LDKLevel* orig_conv = (LDKLevel*)untag_ptr(orig);
        jclass ret_conv = LDKLevel_to_java(env, Level_clone(orig_conv));
        return ret_conv;
 }
@@ -25538,14 +24238,14 @@ JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_Level_1error(JNIEnv *env, jc
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_Level_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
-       LDKLevel* a_conv = (LDKLevel*)(a & ~1);
-       LDKLevel* b_conv = (LDKLevel*)(b & ~1);
+       LDKLevel* a_conv = (LDKLevel*)untag_ptr(a);
+       LDKLevel* b_conv = (LDKLevel*)untag_ptr(b);
        jboolean ret_conv = Level_eq(a_conv, b_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Level_1hash(JNIEnv *env, jclass clz, int64_t o) {
-       LDKLevel* o_conv = (LDKLevel*)(o & ~1);
+       LDKLevel* o_conv = (LDKLevel*)untag_ptr(o);
        int64_t ret_conv = Level_hash(o_conv);
        return ret_conv;
 }
@@ -25557,35 +24257,38 @@ JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_Level_1max(JNIEnv *env, jcla
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Record_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKRecord this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        Record_free(this_obj_conv);
 }
 
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_Record_1get_1level(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRecord this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        jclass ret_conv = LDKLevel_to_java(env, Record_get_level(&this_ptr_conv));
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Record_1set_1level(JNIEnv *env, jclass clz, int64_t this_ptr, jclass val) {
        LDKRecord this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKLevel val_conv = LDKLevel_from_java(env, val);
        Record_set_level(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_Record_1get_1args(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRecord this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKStr ret_str = Record_get_args(&this_ptr_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
        Str_free(ret_str);
@@ -25594,18 +24297,20 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_Record_1get_1args(JNIEnv *e
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Record_1set_1args(JNIEnv *env, jclass clz, int64_t this_ptr, jstring val) {
        LDKRecord this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKStr val_conv = java_to_owned_str(env, val);
        Record_set_args(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_Record_1get_1module_1path(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRecord this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKStr ret_str = Record_get_module_path(&this_ptr_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
        Str_free(ret_str);
@@ -25614,18 +24319,20 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_Record_1get_1module_1path(J
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Record_1set_1module_1path(JNIEnv *env, jclass clz, int64_t this_ptr, jstring val) {
        LDKRecord this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKStr val_conv = java_to_owned_str(env, val);
        Record_set_module_path(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_Record_1get_1file(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRecord this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKStr ret_str = Record_get_file(&this_ptr_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
        Str_free(ret_str);
@@ -25634,672 +24341,658 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_Record_1get_1file(JNIEnv *e
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Record_1set_1file(JNIEnv *env, jclass clz, int64_t this_ptr, jstring val) {
        LDKRecord this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKStr val_conv = java_to_owned_str(env, val);
        Record_set_file(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_Record_1get_1line(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRecord this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = Record_get_line(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Record_1set_1line(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKRecord this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        Record_set_line(&this_ptr_conv, val);
 }
 
-static inline uintptr_t Record_clone_ptr(LDKRecord *NONNULL_PTR arg) {
+static inline uint64_t Record_clone_ptr(LDKRecord *NONNULL_PTR arg) {
        LDKRecord ret_var = Record_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Record_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKRecord arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = Record_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Record_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKRecord orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKRecord ret_var = Record_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Logger_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKLogger this_ptr_conv = *(LDKLogger*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        Logger_free(this_ptr_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeConfig_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKChannelHandshakeConfig this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ChannelHandshakeConfig_free(this_obj_conv);
 }
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeConfig_1get_1minimum_1depth(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelHandshakeConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = ChannelHandshakeConfig_get_minimum_depth(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeConfig_1set_1minimum_1depth(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKChannelHandshakeConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelHandshakeConfig_set_minimum_depth(&this_ptr_conv, val);
 }
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeConfig_1get_1our_1to_1self_1delay(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelHandshakeConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int16_t ret_conv = ChannelHandshakeConfig_get_our_to_self_delay(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeConfig_1set_1our_1to_1self_1delay(JNIEnv *env, jclass clz, int64_t this_ptr, int16_t val) {
        LDKChannelHandshakeConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelHandshakeConfig_set_our_to_self_delay(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeConfig_1get_1our_1htlc_1minimum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelHandshakeConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ChannelHandshakeConfig_get_our_htlc_minimum_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeConfig_1set_1our_1htlc_1minimum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelHandshakeConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelHandshakeConfig_set_our_htlc_minimum_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int8_t JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeConfig_1get_1max_1inbound_1htlc_1value_1in_1flight_1percent_1of_1channel(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelHandshakeConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_t ret_conv = ChannelHandshakeConfig_get_max_inbound_htlc_value_in_flight_percent_of_channel(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeConfig_1set_1max_1inbound_1htlc_1value_1in_1flight_1percent_1of_1channel(JNIEnv *env, jclass clz, int64_t this_ptr, int8_t val) {
        LDKChannelHandshakeConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelHandshakeConfig_set_max_inbound_htlc_value_in_flight_percent_of_channel(&this_ptr_conv, val);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeConfig_1get_1negotiate_1scid_1privacy(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelHandshakeConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        jboolean ret_conv = ChannelHandshakeConfig_get_negotiate_scid_privacy(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeConfig_1set_1negotiate_1scid_1privacy(JNIEnv *env, jclass clz, int64_t this_ptr, jboolean val) {
        LDKChannelHandshakeConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelHandshakeConfig_set_negotiate_scid_privacy(&this_ptr_conv, val);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeConfig_1get_1announced_1channel(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelHandshakeConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        jboolean ret_conv = ChannelHandshakeConfig_get_announced_channel(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeConfig_1set_1announced_1channel(JNIEnv *env, jclass clz, int64_t this_ptr, jboolean val) {
        LDKChannelHandshakeConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelHandshakeConfig_set_announced_channel(&this_ptr_conv, val);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeConfig_1get_1commit_1upfront_1shutdown_1pubkey(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelHandshakeConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        jboolean ret_conv = ChannelHandshakeConfig_get_commit_upfront_shutdown_pubkey(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeConfig_1set_1commit_1upfront_1shutdown_1pubkey(JNIEnv *env, jclass clz, int64_t this_ptr, jboolean val) {
        LDKChannelHandshakeConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelHandshakeConfig_set_commit_upfront_shutdown_pubkey(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeConfig_1new(JNIEnv *env, jclass clz, int32_t minimum_depth_arg, int16_t our_to_self_delay_arg, int64_t our_htlc_minimum_msat_arg, int8_t max_inbound_htlc_value_in_flight_percent_of_channel_arg, jboolean negotiate_scid_privacy_arg, jboolean announced_channel_arg, jboolean commit_upfront_shutdown_pubkey_arg) {
        LDKChannelHandshakeConfig ret_var = ChannelHandshakeConfig_new(minimum_depth_arg, our_to_self_delay_arg, our_htlc_minimum_msat_arg, max_inbound_htlc_value_in_flight_percent_of_channel_arg, negotiate_scid_privacy_arg, announced_channel_arg, commit_upfront_shutdown_pubkey_arg);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t ChannelHandshakeConfig_clone_ptr(LDKChannelHandshakeConfig *NONNULL_PTR arg) {
+static inline uint64_t ChannelHandshakeConfig_clone_ptr(LDKChannelHandshakeConfig *NONNULL_PTR arg) {
        LDKChannelHandshakeConfig ret_var = ChannelHandshakeConfig_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeConfig_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKChannelHandshakeConfig arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ChannelHandshakeConfig_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeConfig_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKChannelHandshakeConfig orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKChannelHandshakeConfig ret_var = ChannelHandshakeConfig_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeConfig_1default(JNIEnv *env, jclass clz) {
        LDKChannelHandshakeConfig ret_var = ChannelHandshakeConfig_default();
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKChannelHandshakeLimits this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ChannelHandshakeLimits_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1get_1min_1funding_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelHandshakeLimits this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ChannelHandshakeLimits_get_min_funding_satoshis(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1set_1min_1funding_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelHandshakeLimits this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelHandshakeLimits_set_min_funding_satoshis(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1get_1max_1funding_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelHandshakeLimits this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ChannelHandshakeLimits_get_max_funding_satoshis(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1set_1max_1funding_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelHandshakeLimits this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelHandshakeLimits_set_max_funding_satoshis(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1get_1max_1htlc_1minimum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelHandshakeLimits this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ChannelHandshakeLimits_get_max_htlc_minimum_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1set_1max_1htlc_1minimum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelHandshakeLimits this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelHandshakeLimits_set_max_htlc_minimum_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1get_1min_1max_1htlc_1value_1in_1flight_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelHandshakeLimits this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ChannelHandshakeLimits_get_min_max_htlc_value_in_flight_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1set_1min_1max_1htlc_1value_1in_1flight_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelHandshakeLimits this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelHandshakeLimits_set_min_max_htlc_value_in_flight_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1get_1max_1channel_1reserve_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelHandshakeLimits this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ChannelHandshakeLimits_get_max_channel_reserve_satoshis(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1set_1max_1channel_1reserve_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelHandshakeLimits this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelHandshakeLimits_set_max_channel_reserve_satoshis(&this_ptr_conv, val);
 }
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1get_1min_1max_1accepted_1htlcs(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelHandshakeLimits this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int16_t ret_conv = ChannelHandshakeLimits_get_min_max_accepted_htlcs(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1set_1min_1max_1accepted_1htlcs(JNIEnv *env, jclass clz, int64_t this_ptr, int16_t val) {
        LDKChannelHandshakeLimits this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelHandshakeLimits_set_min_max_accepted_htlcs(&this_ptr_conv, val);
 }
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1get_1max_1minimum_1depth(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelHandshakeLimits this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = ChannelHandshakeLimits_get_max_minimum_depth(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1set_1max_1minimum_1depth(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKChannelHandshakeLimits this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelHandshakeLimits_set_max_minimum_depth(&this_ptr_conv, val);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1get_1trust_1own_1funding_10conf(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelHandshakeLimits this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        jboolean ret_conv = ChannelHandshakeLimits_get_trust_own_funding_0conf(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1set_1trust_1own_1funding_10conf(JNIEnv *env, jclass clz, int64_t this_ptr, jboolean val) {
        LDKChannelHandshakeLimits this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelHandshakeLimits_set_trust_own_funding_0conf(&this_ptr_conv, val);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1get_1force_1announced_1channel_1preference(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelHandshakeLimits this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        jboolean ret_conv = ChannelHandshakeLimits_get_force_announced_channel_preference(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1set_1force_1announced_1channel_1preference(JNIEnv *env, jclass clz, int64_t this_ptr, jboolean val) {
        LDKChannelHandshakeLimits this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelHandshakeLimits_set_force_announced_channel_preference(&this_ptr_conv, val);
 }
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1get_1their_1to_1self_1delay(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelHandshakeLimits this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int16_t ret_conv = ChannelHandshakeLimits_get_their_to_self_delay(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1set_1their_1to_1self_1delay(JNIEnv *env, jclass clz, int64_t this_ptr, int16_t val) {
        LDKChannelHandshakeLimits this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelHandshakeLimits_set_their_to_self_delay(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1new(JNIEnv *env, jclass clz, int64_t min_funding_satoshis_arg, int64_t max_funding_satoshis_arg, int64_t max_htlc_minimum_msat_arg, int64_t min_max_htlc_value_in_flight_msat_arg, int64_t max_channel_reserve_satoshis_arg, int16_t min_max_accepted_htlcs_arg, int32_t max_minimum_depth_arg, jboolean trust_own_funding_0conf_arg, jboolean force_announced_channel_preference_arg, int16_t their_to_self_delay_arg) {
        LDKChannelHandshakeLimits ret_var = ChannelHandshakeLimits_new(min_funding_satoshis_arg, max_funding_satoshis_arg, max_htlc_minimum_msat_arg, min_max_htlc_value_in_flight_msat_arg, max_channel_reserve_satoshis_arg, min_max_accepted_htlcs_arg, max_minimum_depth_arg, trust_own_funding_0conf_arg, force_announced_channel_preference_arg, their_to_self_delay_arg);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t ChannelHandshakeLimits_clone_ptr(LDKChannelHandshakeLimits *NONNULL_PTR arg) {
+static inline uint64_t ChannelHandshakeLimits_clone_ptr(LDKChannelHandshakeLimits *NONNULL_PTR arg) {
        LDKChannelHandshakeLimits ret_var = ChannelHandshakeLimits_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKChannelHandshakeLimits arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ChannelHandshakeLimits_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKChannelHandshakeLimits orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKChannelHandshakeLimits ret_var = ChannelHandshakeLimits_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelHandshakeLimits_1default(JNIEnv *env, jclass clz) {
        LDKChannelHandshakeLimits ret_var = ChannelHandshakeLimits_default();
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKChannelConfig this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ChannelConfig_free(this_obj_conv);
 }
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1get_1forwarding_1fee_1proportional_1millionths(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = ChannelConfig_get_forwarding_fee_proportional_millionths(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1set_1forwarding_1fee_1proportional_1millionths(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKChannelConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelConfig_set_forwarding_fee_proportional_millionths(&this_ptr_conv, val);
 }
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1get_1forwarding_1fee_1base_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = ChannelConfig_get_forwarding_fee_base_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1set_1forwarding_1fee_1base_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKChannelConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelConfig_set_forwarding_fee_base_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1get_1cltv_1expiry_1delta(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int16_t ret_conv = ChannelConfig_get_cltv_expiry_delta(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1set_1cltv_1expiry_1delta(JNIEnv *env, jclass clz, int64_t this_ptr, int16_t val) {
        LDKChannelConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelConfig_set_cltv_expiry_delta(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1get_1max_1dust_1htlc_1exposure_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ChannelConfig_get_max_dust_htlc_exposure_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1set_1max_1dust_1htlc_1exposure_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelConfig_set_max_dust_htlc_exposure_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1get_1force_1close_1avoidance_1max_1fee_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ChannelConfig_get_force_close_avoidance_max_fee_satoshis(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1set_1force_1close_1avoidance_1max_1fee_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelConfig_set_force_close_avoidance_max_fee_satoshis(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1new(JNIEnv *env, jclass clz, int32_t forwarding_fee_proportional_millionths_arg, int32_t forwarding_fee_base_msat_arg, int16_t cltv_expiry_delta_arg, int64_t max_dust_htlc_exposure_msat_arg, int64_t force_close_avoidance_max_fee_satoshis_arg) {
        LDKChannelConfig ret_var = ChannelConfig_new(forwarding_fee_proportional_millionths_arg, forwarding_fee_base_msat_arg, cltv_expiry_delta_arg, max_dust_htlc_exposure_msat_arg, force_close_avoidance_max_fee_satoshis_arg);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t ChannelConfig_clone_ptr(LDKChannelConfig *NONNULL_PTR arg) {
+static inline uint64_t ChannelConfig_clone_ptr(LDKChannelConfig *NONNULL_PTR arg) {
        LDKChannelConfig ret_var = ChannelConfig_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKChannelConfig arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ChannelConfig_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKChannelConfig orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKChannelConfig ret_var = ChannelConfig_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1default(JNIEnv *env, jclass clz) {
        LDKChannelConfig ret_var = ChannelConfig_default();
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKChannelConfig obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = ChannelConfig_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -26314,42 +25007,39 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1read(JNIEnv
        LDKCResult_ChannelConfigDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelConfigDecodeErrorZ), "LDKCResult_ChannelConfigDecodeErrorZ");
        *ret_conv = ChannelConfig_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UserConfig_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKUserConfig this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        UserConfig_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UserConfig_1get_1channel_1handshake_1config(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUserConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelHandshakeConfig ret_var = UserConfig_get_channel_handshake_config(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UserConfig_1set_1channel_1handshake_1config(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKUserConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelHandshakeConfig val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = ChannelHandshakeConfig_clone(&val_conv);
        UserConfig_set_channel_handshake_config(&this_ptr_conv, val_conv);
@@ -26357,29 +25047,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UserConfig_1set_1channel_1hand
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UserConfig_1get_1channel_1handshake_1limits(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUserConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelHandshakeLimits ret_var = UserConfig_get_channel_handshake_limits(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UserConfig_1set_1channel_1handshake_1limits(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKUserConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelHandshakeLimits val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = ChannelHandshakeLimits_clone(&val_conv);
        UserConfig_set_channel_handshake_limits(&this_ptr_conv, val_conv);
@@ -26387,29 +25074,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UserConfig_1set_1channel_1hand
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UserConfig_1get_1channel_1config(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUserConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelConfig ret_var = UserConfig_get_channel_config(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UserConfig_1set_1channel_1config(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKUserConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelConfig val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = ChannelConfig_clone(&val_conv);
        UserConfig_set_channel_config(&this_ptr_conv, val_conv);
@@ -26417,177 +25101,157 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UserConfig_1set_1channel_1conf
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_UserConfig_1get_1accept_1forwards_1to_1priv_1channels(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUserConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        jboolean ret_conv = UserConfig_get_accept_forwards_to_priv_channels(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UserConfig_1set_1accept_1forwards_1to_1priv_1channels(JNIEnv *env, jclass clz, int64_t this_ptr, jboolean val) {
        LDKUserConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        UserConfig_set_accept_forwards_to_priv_channels(&this_ptr_conv, val);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_UserConfig_1get_1accept_1inbound_1channels(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUserConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        jboolean ret_conv = UserConfig_get_accept_inbound_channels(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UserConfig_1set_1accept_1inbound_1channels(JNIEnv *env, jclass clz, int64_t this_ptr, jboolean val) {
        LDKUserConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        UserConfig_set_accept_inbound_channels(&this_ptr_conv, val);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_UserConfig_1get_1manually_1accept_1inbound_1channels(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUserConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        jboolean ret_conv = UserConfig_get_manually_accept_inbound_channels(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UserConfig_1set_1manually_1accept_1inbound_1channels(JNIEnv *env, jclass clz, int64_t this_ptr, jboolean val) {
        LDKUserConfig this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        UserConfig_set_manually_accept_inbound_channels(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UserConfig_1new(JNIEnv *env, jclass clz, int64_t channel_handshake_config_arg, int64_t channel_handshake_limits_arg, int64_t channel_config_arg, jboolean accept_forwards_to_priv_channels_arg, jboolean accept_inbound_channels_arg, jboolean manually_accept_inbound_channels_arg) {
        LDKChannelHandshakeConfig channel_handshake_config_arg_conv;
-       channel_handshake_config_arg_conv.inner = (void*)(channel_handshake_config_arg & (~1));
-       channel_handshake_config_arg_conv.is_owned = (channel_handshake_config_arg & 1) || (channel_handshake_config_arg == 0);
+       channel_handshake_config_arg_conv.inner = untag_ptr(channel_handshake_config_arg);
+       channel_handshake_config_arg_conv.is_owned = ptr_is_owned(channel_handshake_config_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_handshake_config_arg_conv);
        channel_handshake_config_arg_conv = ChannelHandshakeConfig_clone(&channel_handshake_config_arg_conv);
        LDKChannelHandshakeLimits channel_handshake_limits_arg_conv;
-       channel_handshake_limits_arg_conv.inner = (void*)(channel_handshake_limits_arg & (~1));
-       channel_handshake_limits_arg_conv.is_owned = (channel_handshake_limits_arg & 1) || (channel_handshake_limits_arg == 0);
+       channel_handshake_limits_arg_conv.inner = untag_ptr(channel_handshake_limits_arg);
+       channel_handshake_limits_arg_conv.is_owned = ptr_is_owned(channel_handshake_limits_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_handshake_limits_arg_conv);
        channel_handshake_limits_arg_conv = ChannelHandshakeLimits_clone(&channel_handshake_limits_arg_conv);
        LDKChannelConfig channel_config_arg_conv;
-       channel_config_arg_conv.inner = (void*)(channel_config_arg & (~1));
-       channel_config_arg_conv.is_owned = (channel_config_arg & 1) || (channel_config_arg == 0);
+       channel_config_arg_conv.inner = untag_ptr(channel_config_arg);
+       channel_config_arg_conv.is_owned = ptr_is_owned(channel_config_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_config_arg_conv);
        channel_config_arg_conv = ChannelConfig_clone(&channel_config_arg_conv);
        LDKUserConfig ret_var = UserConfig_new(channel_handshake_config_arg_conv, channel_handshake_limits_arg_conv, channel_config_arg_conv, accept_forwards_to_priv_channels_arg, accept_inbound_channels_arg, manually_accept_inbound_channels_arg);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t UserConfig_clone_ptr(LDKUserConfig *NONNULL_PTR arg) {
+static inline uint64_t UserConfig_clone_ptr(LDKUserConfig *NONNULL_PTR arg) {
        LDKUserConfig ret_var = UserConfig_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UserConfig_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKUserConfig arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = UserConfig_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UserConfig_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKUserConfig orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKUserConfig ret_var = UserConfig_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UserConfig_1default(JNIEnv *env, jclass clz) {
        LDKUserConfig ret_var = UserConfig_default();
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_BestBlock_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKBestBlock this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        BestBlock_free(this_obj_conv);
 }
 
-static inline uintptr_t BestBlock_clone_ptr(LDKBestBlock *NONNULL_PTR arg) {
+static inline uint64_t BestBlock_clone_ptr(LDKBestBlock *NONNULL_PTR arg) {
        LDKBestBlock ret_var = BestBlock_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BestBlock_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKBestBlock arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = BestBlock_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BestBlock_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKBestBlock orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKBestBlock ret_var = BestBlock_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -26595,13 +25259,8 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BestBlock_1from_1genesis(JN
        LDKNetwork network_conv = LDKNetwork_from_java(env, network);
        LDKBestBlock ret_var = BestBlock_from_genesis(network_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -26611,21 +25270,17 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BestBlock_1new(JNIEnv *env,
        (*env)->GetByteArrayRegion(env, block_hash, 0, 32, block_hash_ref.data);
        LDKBestBlock ret_var = BestBlock_new(block_hash_ref, height);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_BestBlock_1block_1hash(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKBestBlock this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, BestBlock_block_hash(&this_arg_conv).data);
        return ret_arr;
@@ -26633,15 +25288,16 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_BestBlock_1block_1hash(
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_BestBlock_1height(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKBestBlock this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int32_t ret_conv = BestBlock_height(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_AccessError_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKAccessError* orig_conv = (LDKAccessError*)(orig & ~1);
+       LDKAccessError* orig_conv = (LDKAccessError*)untag_ptr(orig);
        jclass ret_conv = LDKAccessError_to_java(env, AccessError_clone(orig_conv));
        return ret_conv;
 }
@@ -26657,34 +25313,34 @@ JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_AccessError_1unknown_1tx(JNI
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Access_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKAccess this_ptr_conv = *(LDKAccess*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        Access_free(this_ptr_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Listen_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKListen this_ptr_conv = *(LDKListen*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        Listen_free(this_ptr_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Confirm_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKConfirm this_ptr_conv = *(LDKConfirm*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        Confirm_free(this_ptr_conv);
 }
 
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_ChannelMonitorUpdateErr_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKChannelMonitorUpdateErr* orig_conv = (LDKChannelMonitorUpdateErr*)(orig & ~1);
+       LDKChannelMonitorUpdateErr* orig_conv = (LDKChannelMonitorUpdateErr*)untag_ptr(orig);
        jclass ret_conv = LDKChannelMonitorUpdateErr_to_java(env, ChannelMonitorUpdateErr_clone(orig_conv));
        return ret_conv;
 }
@@ -26700,36 +25356,37 @@ JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_ChannelMonitorUpdateErr_1per
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Watch_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKWatch this_ptr_conv = *(LDKWatch*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        Watch_free(this_ptr_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Filter_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKFilter this_ptr_conv = *(LDKFilter*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        Filter_free(this_ptr_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_WatchedOutput_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKWatchedOutput this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        WatchedOutput_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_WatchedOutput_1get_1block_1hash(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKWatchedOutput this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, WatchedOutput_get_block_hash(&this_ptr_conv).data);
        return ret_arr;
@@ -26737,9 +25394,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_WatchedOutput_1get_1blo
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_WatchedOutput_1set_1block_1hash(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKWatchedOutput this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -26748,29 +25406,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_WatchedOutput_1set_1block_1has
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_WatchedOutput_1get_1outpoint(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKWatchedOutput this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKOutPoint ret_var = WatchedOutput_get_outpoint(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_WatchedOutput_1set_1outpoint(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKWatchedOutput this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKOutPoint val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = OutPoint_clone(&val_conv);
        WatchedOutput_set_outpoint(&this_ptr_conv, val_conv);
@@ -26778,9 +25433,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_WatchedOutput_1set_1outpoint(J
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_WatchedOutput_1get_1script_1pubkey(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKWatchedOutput this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKu8slice ret_var = WatchedOutput_get_script_pubkey(&this_ptr_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -26789,9 +25445,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_WatchedOutput_1get_1scr
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_WatchedOutput_1set_1script_1pubkey(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKWatchedOutput this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_u8Z val_ref;
        val_ref.datalen = (*env)->GetArrayLength(env, val);
        val_ref.data = MALLOC(val_ref.datalen, "LDKCVec_u8Z Bytes");
@@ -26804,8 +25461,8 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_WatchedOutput_1new(JNIEnv *
        CHECK((*env)->GetArrayLength(env, block_hash_arg) == 32);
        (*env)->GetByteArrayRegion(env, block_hash_arg, 0, 32, block_hash_arg_ref.data);
        LDKOutPoint outpoint_arg_conv;
-       outpoint_arg_conv.inner = (void*)(outpoint_arg & (~1));
-       outpoint_arg_conv.is_owned = (outpoint_arg & 1) || (outpoint_arg == 0);
+       outpoint_arg_conv.inner = untag_ptr(outpoint_arg);
+       outpoint_arg_conv.is_owned = ptr_is_owned(outpoint_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(outpoint_arg_conv);
        outpoint_arg_conv = OutPoint_clone(&outpoint_arg_conv);
        LDKCVec_u8Z script_pubkey_arg_ref;
@@ -26814,74 +25471,62 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_WatchedOutput_1new(JNIEnv *
        (*env)->GetByteArrayRegion(env, script_pubkey_arg, 0, script_pubkey_arg_ref.datalen, script_pubkey_arg_ref.data);
        LDKWatchedOutput ret_var = WatchedOutput_new(block_hash_arg_ref, outpoint_arg_conv, script_pubkey_arg_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t WatchedOutput_clone_ptr(LDKWatchedOutput *NONNULL_PTR arg) {
+static inline uint64_t WatchedOutput_clone_ptr(LDKWatchedOutput *NONNULL_PTR arg) {
        LDKWatchedOutput ret_var = WatchedOutput_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_WatchedOutput_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKWatchedOutput arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = WatchedOutput_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_WatchedOutput_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKWatchedOutput orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKWatchedOutput ret_var = WatchedOutput_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_WatchedOutput_1hash(JNIEnv *env, jclass clz, int64_t o) {
        LDKWatchedOutput o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = false;
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
+       o_conv.is_owned = false;
        int64_t ret_conv = WatchedOutput_hash(&o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_BroadcasterInterface_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKBroadcasterInterface this_ptr_conv = *(LDKBroadcasterInterface*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        BroadcasterInterface_free(this_ptr_conv);
 }
 
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_ConfirmationTarget_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKConfirmationTarget* orig_conv = (LDKConfirmationTarget*)(orig & ~1);
+       LDKConfirmationTarget* orig_conv = (LDKConfirmationTarget*)untag_ptr(orig);
        jclass ret_conv = LDKConfirmationTarget_to_java(env, ConfirmationTarget_clone(orig_conv));
        return ret_conv;
 }
@@ -26902,116 +25547,111 @@ JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_ConfirmationTarget_1high_1pr
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ConfirmationTarget_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
-       LDKConfirmationTarget* a_conv = (LDKConfirmationTarget*)(a & ~1);
-       LDKConfirmationTarget* b_conv = (LDKConfirmationTarget*)(b & ~1);
+       LDKConfirmationTarget* a_conv = (LDKConfirmationTarget*)untag_ptr(a);
+       LDKConfirmationTarget* b_conv = (LDKConfirmationTarget*)untag_ptr(b);
        jboolean ret_conv = ConfirmationTarget_eq(a_conv, b_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_FeeEstimator_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKFeeEstimator this_ptr_conv = *(LDKFeeEstimator*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        FeeEstimator_free(this_ptr_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_MonitorUpdateId_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKMonitorUpdateId this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        MonitorUpdateId_free(this_obj_conv);
 }
 
-static inline uintptr_t MonitorUpdateId_clone_ptr(LDKMonitorUpdateId *NONNULL_PTR arg) {
+static inline uint64_t MonitorUpdateId_clone_ptr(LDKMonitorUpdateId *NONNULL_PTR arg) {
        LDKMonitorUpdateId ret_var = MonitorUpdateId_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MonitorUpdateId_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKMonitorUpdateId arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = MonitorUpdateId_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MonitorUpdateId_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKMonitorUpdateId orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKMonitorUpdateId ret_var = MonitorUpdateId_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MonitorUpdateId_1hash(JNIEnv *env, jclass clz, int64_t o) {
        LDKMonitorUpdateId o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = false;
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
+       o_conv.is_owned = false;
        int64_t ret_conv = MonitorUpdateId_hash(&o_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_MonitorUpdateId_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKMonitorUpdateId a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKMonitorUpdateId b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = MonitorUpdateId_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Persist_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKPersist this_ptr_conv = *(LDKPersist*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        Persist_free(this_ptr_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_LockedChannelMonitor_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKLockedChannelMonitor this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        LockedChannelMonitor_free(this_obj_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChainMonitor_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKChainMonitor this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ChainMonitor_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChainMonitor_1new(JNIEnv *env, jclass clz, int64_t chain_source, int64_t broadcaster, int64_t logger, int64_t feeest, int64_t persister) {
-       void* chain_source_ptr = (void*)(((uintptr_t)chain_source) & ~1);
+       void* chain_source_ptr = untag_ptr(chain_source);
        CHECK_ACCESS(chain_source_ptr);
        LDKCOption_FilterZ chain_source_conv = *(LDKCOption_FilterZ*)(chain_source_ptr);
        // WARNING: we may need a move here but no clone is available for LDKCOption_FilterZ
@@ -27022,28 +25662,28 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChainMonitor_1new(JNIEnv *e
                        LDKFilter_JCalls_cloned(&chain_source_conv.some);
                }
        }
-       void* broadcaster_ptr = (void*)(((uintptr_t)broadcaster) & ~1);
+       void* broadcaster_ptr = untag_ptr(broadcaster);
        CHECK_ACCESS(broadcaster_ptr);
        LDKBroadcasterInterface broadcaster_conv = *(LDKBroadcasterInterface*)(broadcaster_ptr);
        if (broadcaster_conv.free == LDKBroadcasterInterface_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKBroadcasterInterface_JCalls_cloned(&broadcaster_conv);
        }
-       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
+       void* logger_ptr = untag_ptr(logger);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
        if (logger_conv.free == LDKLogger_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKLogger_JCalls_cloned(&logger_conv);
        }
-       void* feeest_ptr = (void*)(((uintptr_t)feeest) & ~1);
+       void* feeest_ptr = untag_ptr(feeest);
        CHECK_ACCESS(feeest_ptr);
        LDKFeeEstimator feeest_conv = *(LDKFeeEstimator*)(feeest_ptr);
        if (feeest_conv.free == LDKFeeEstimator_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKFeeEstimator_JCalls_cloned(&feeest_conv);
        }
-       void* persister_ptr = (void*)(((uintptr_t)persister) & ~1);
+       void* persister_ptr = untag_ptr(persister);
        CHECK_ACCESS(persister_ptr);
        LDKPersist persister_conv = *(LDKPersist*)(persister_ptr);
        if (persister_conv.free == LDKPersist_JCalls_free) {
@@ -27052,21 +25692,17 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChainMonitor_1new(JNIEnv *e
        }
        LDKChainMonitor ret_var = ChainMonitor_new(chain_source_conv, broadcaster_conv, logger_conv, feeest_conv, persister_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChainMonitor_1get_1claimable_1balances(JNIEnv *env, jclass clz, int64_t this_arg, int64_tArray ignored_channels) {
        LDKChainMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCVec_ChannelDetailsZ ignored_channels_constr;
        ignored_channels_constr.datalen = (*env)->GetArrayLength(env, ignored_channels);
        if (ignored_channels_constr.datalen > 0)
@@ -27077,8 +25713,8 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChainMonitor_1get_1cla
        for (size_t q = 0; q < ignored_channels_constr.datalen; q++) {
                int64_t ignored_channels_conv_16 = ignored_channels_vals[q];
                LDKChannelDetails ignored_channels_conv_16_conv;
-               ignored_channels_conv_16_conv.inner = (void*)(ignored_channels_conv_16 & (~1));
-               ignored_channels_conv_16_conv.is_owned = (ignored_channels_conv_16 & 1) || (ignored_channels_conv_16 == 0);
+               ignored_channels_conv_16_conv.inner = untag_ptr(ignored_channels_conv_16);
+               ignored_channels_conv_16_conv.is_owned = ptr_is_owned(ignored_channels_conv_16);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ignored_channels_conv_16_conv);
                ignored_channels_conv_16_conv = ChannelDetails_clone(&ignored_channels_conv_16_conv);
                ignored_channels_constr.data[q] = ignored_channels_conv_16_conv;
@@ -27091,7 +25727,7 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChainMonitor_1get_1cla
        for (size_t j = 0; j < ret_var.datalen; j++) {
                LDKBalance *ret_conv_9_copy = MALLOC(sizeof(LDKBalance), "LDKBalance");
                *ret_conv_9_copy = ret_var.data[j];
-               int64_t ret_conv_9_ref = (uintptr_t)ret_conv_9_copy;
+               int64_t ret_conv_9_ref = tag_ptr(ret_conv_9_copy, true);
                ret_arr_ptr[j] = ret_conv_9_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
@@ -27101,24 +25737,26 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChainMonitor_1get_1cla
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChainMonitor_1get_1monitor(JNIEnv *env, jclass clz, int64_t this_arg, int64_t funding_txo) {
        LDKChainMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKOutPoint funding_txo_conv;
-       funding_txo_conv.inner = (void*)(funding_txo & (~1));
-       funding_txo_conv.is_owned = (funding_txo & 1) || (funding_txo == 0);
+       funding_txo_conv.inner = untag_ptr(funding_txo);
+       funding_txo_conv.is_owned = ptr_is_owned(funding_txo);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(funding_txo_conv);
        funding_txo_conv = OutPoint_clone(&funding_txo_conv);
        LDKCResult_LockedChannelMonitorNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_LockedChannelMonitorNoneZ), "LDKCResult_LockedChannelMonitorNoneZ");
        *ret_conv = ChainMonitor_get_monitor(&this_arg_conv, funding_txo_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChainMonitor_1list_1monitors(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChainMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCVec_OutPointZ ret_var = ChainMonitor_list_monitors(&this_arg_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -27126,13 +25764,8 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChainMonitor_1list_1mo
        for (size_t k = 0; k < ret_var.datalen; k++) {
                LDKOutPoint ret_conv_10_var = ret_var.data[k];
                int64_t ret_conv_10_ref = 0;
-               CHECK((((uintptr_t)ret_conv_10_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_conv_10_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_10_var);
-               ret_conv_10_ref = (uintptr_t)ret_conv_10_var.inner;
-               if (ret_conv_10_var.is_owned) {
-                       ret_conv_10_ref |= 1;
-               }
+               ret_conv_10_ref = tag_ptr(ret_conv_10_var.inner, ret_conv_10_var.is_owned);
                ret_arr_ptr[k] = ret_conv_10_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
@@ -27142,132 +25775,132 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChainMonitor_1list_1mo
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChainMonitor_1channel_1monitor_1updated(JNIEnv *env, jclass clz, int64_t this_arg, int64_t funding_txo, int64_t completed_update_id) {
        LDKChainMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKOutPoint funding_txo_conv;
-       funding_txo_conv.inner = (void*)(funding_txo & (~1));
-       funding_txo_conv.is_owned = (funding_txo & 1) || (funding_txo == 0);
+       funding_txo_conv.inner = untag_ptr(funding_txo);
+       funding_txo_conv.is_owned = ptr_is_owned(funding_txo);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(funding_txo_conv);
        funding_txo_conv = OutPoint_clone(&funding_txo_conv);
        LDKMonitorUpdateId completed_update_id_conv;
-       completed_update_id_conv.inner = (void*)(completed_update_id & (~1));
-       completed_update_id_conv.is_owned = (completed_update_id & 1) || (completed_update_id == 0);
+       completed_update_id_conv.inner = untag_ptr(completed_update_id);
+       completed_update_id_conv.is_owned = ptr_is_owned(completed_update_id);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(completed_update_id_conv);
        completed_update_id_conv = MonitorUpdateId_clone(&completed_update_id_conv);
        LDKCResult_NoneAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
        *ret_conv = ChainMonitor_channel_monitor_updated(&this_arg_conv, funding_txo_conv, completed_update_id_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChainMonitor_1as_1Listen(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChainMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKListen* ret_ret = MALLOC(sizeof(LDKListen), "LDKListen");
        *ret_ret = ChainMonitor_as_Listen(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChainMonitor_1as_1Confirm(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChainMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKConfirm* ret_ret = MALLOC(sizeof(LDKConfirm), "LDKConfirm");
        *ret_ret = ChainMonitor_as_Confirm(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChainMonitor_1as_1Watch(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChainMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKWatch* ret_ret = MALLOC(sizeof(LDKWatch), "LDKWatch");
        *ret_ret = ChainMonitor_as_Watch(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChainMonitor_1as_1EventsProvider(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChainMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKEventsProvider* ret_ret = MALLOC(sizeof(LDKEventsProvider), "LDKEventsProvider");
        *ret_ret = ChainMonitor_as_EventsProvider(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMonitorUpdate_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKChannelMonitorUpdate this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ChannelMonitorUpdate_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelMonitorUpdate_1get_1update_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelMonitorUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ChannelMonitorUpdate_get_update_id(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMonitorUpdate_1set_1update_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelMonitorUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelMonitorUpdate_set_update_id(&this_ptr_conv, val);
 }
 
-static inline uintptr_t ChannelMonitorUpdate_clone_ptr(LDKChannelMonitorUpdate *NONNULL_PTR arg) {
+static inline uint64_t ChannelMonitorUpdate_clone_ptr(LDKChannelMonitorUpdate *NONNULL_PTR arg) {
        LDKChannelMonitorUpdate ret_var = ChannelMonitorUpdate_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelMonitorUpdate_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKChannelMonitorUpdate arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ChannelMonitorUpdate_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelMonitorUpdate_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKChannelMonitorUpdate orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKChannelMonitorUpdate ret_var = ChannelMonitorUpdate_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitorUpdate_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKChannelMonitorUpdate obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = ChannelMonitorUpdate_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -27282,88 +25915,88 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelMonitorUpdate_1read(
        LDKCResult_ChannelMonitorUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelMonitorUpdateDecodeErrorZ), "LDKCResult_ChannelMonitorUpdateDecodeErrorZ");
        *ret_conv = ChannelMonitorUpdate_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_MonitorEvent_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKMonitorEvent this_ptr_conv = *(LDKMonitorEvent*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        MonitorEvent_free(this_ptr_conv);
 }
 
-static inline uintptr_t MonitorEvent_clone_ptr(LDKMonitorEvent *NONNULL_PTR arg) {
+static inline uint64_t MonitorEvent_clone_ptr(LDKMonitorEvent *NONNULL_PTR arg) {
        LDKMonitorEvent *ret_copy = MALLOC(sizeof(LDKMonitorEvent), "LDKMonitorEvent");
        *ret_copy = MonitorEvent_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MonitorEvent_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKMonitorEvent* arg_conv = (LDKMonitorEvent*)arg;
+       LDKMonitorEvent* arg_conv = (LDKMonitorEvent*)untag_ptr(arg);
        int64_t ret_conv = MonitorEvent_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MonitorEvent_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKMonitorEvent* orig_conv = (LDKMonitorEvent*)orig;
+       LDKMonitorEvent* orig_conv = (LDKMonitorEvent*)untag_ptr(orig);
        LDKMonitorEvent *ret_copy = MALLOC(sizeof(LDKMonitorEvent), "LDKMonitorEvent");
        *ret_copy = MonitorEvent_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MonitorEvent_1htlcevent(JNIEnv *env, jclass clz, int64_t a) {
        LDKHTLCUpdate a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = (a & 1) || (a == 0);
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
        a_conv = HTLCUpdate_clone(&a_conv);
        LDKMonitorEvent *ret_copy = MALLOC(sizeof(LDKMonitorEvent), "LDKMonitorEvent");
        *ret_copy = MonitorEvent_htlcevent(a_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MonitorEvent_1commitment_1tx_1confirmed(JNIEnv *env, jclass clz, int64_t a) {
        LDKOutPoint a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = (a & 1) || (a == 0);
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
        a_conv = OutPoint_clone(&a_conv);
        LDKMonitorEvent *ret_copy = MALLOC(sizeof(LDKMonitorEvent), "LDKMonitorEvent");
        *ret_copy = MonitorEvent_commitment_tx_confirmed(a_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MonitorEvent_1update_1completed(JNIEnv *env, jclass clz, int64_t funding_txo, int64_t monitor_update_id) {
        LDKOutPoint funding_txo_conv;
-       funding_txo_conv.inner = (void*)(funding_txo & (~1));
-       funding_txo_conv.is_owned = (funding_txo & 1) || (funding_txo == 0);
+       funding_txo_conv.inner = untag_ptr(funding_txo);
+       funding_txo_conv.is_owned = ptr_is_owned(funding_txo);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(funding_txo_conv);
        funding_txo_conv = OutPoint_clone(&funding_txo_conv);
        LDKMonitorEvent *ret_copy = MALLOC(sizeof(LDKMonitorEvent), "LDKMonitorEvent");
        *ret_copy = MonitorEvent_update_completed(funding_txo_conv, monitor_update_id);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MonitorEvent_1update_1failed(JNIEnv *env, jclass clz, int64_t a) {
        LDKOutPoint a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = (a & 1) || (a == 0);
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
        a_conv = OutPoint_clone(&a_conv);
        LDKMonitorEvent *ret_copy = MALLOC(sizeof(LDKMonitorEvent), "LDKMonitorEvent");
        *ret_copy = MonitorEvent_update_failed(a_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_MonitorEvent_1write(JNIEnv *env, jclass clz, int64_t obj) {
-       LDKMonitorEvent* obj_conv = (LDKMonitorEvent*)obj;
+       LDKMonitorEvent* obj_conv = (LDKMonitorEvent*)untag_ptr(obj);
        LDKCVec_u8Z ret_var = MonitorEvent_write(obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -27378,60 +26011,53 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MonitorEvent_1read(JNIEnv *
        LDKCResult_COption_MonitorEventZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_MonitorEventZDecodeErrorZ), "LDKCResult_COption_MonitorEventZDecodeErrorZ");
        *ret_conv = MonitorEvent_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_HTLCUpdate_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKHTLCUpdate this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        HTLCUpdate_free(this_obj_conv);
 }
 
-static inline uintptr_t HTLCUpdate_clone_ptr(LDKHTLCUpdate *NONNULL_PTR arg) {
+static inline uint64_t HTLCUpdate_clone_ptr(LDKHTLCUpdate *NONNULL_PTR arg) {
        LDKHTLCUpdate ret_var = HTLCUpdate_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_HTLCUpdate_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKHTLCUpdate arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = HTLCUpdate_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_HTLCUpdate_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKHTLCUpdate orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKHTLCUpdate ret_var = HTLCUpdate_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_HTLCUpdate_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKHTLCUpdate obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = HTLCUpdate_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -27446,124 +26072,117 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_HTLCUpdate_1read(JNIEnv *en
        LDKCResult_HTLCUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HTLCUpdateDecodeErrorZ), "LDKCResult_HTLCUpdateDecodeErrorZ");
        *ret_conv = HTLCUpdate_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Balance_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKBalance this_ptr_conv = *(LDKBalance*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        Balance_free(this_ptr_conv);
 }
 
-static inline uintptr_t Balance_clone_ptr(LDKBalance *NONNULL_PTR arg) {
+static inline uint64_t Balance_clone_ptr(LDKBalance *NONNULL_PTR arg) {
        LDKBalance *ret_copy = MALLOC(sizeof(LDKBalance), "LDKBalance");
        *ret_copy = Balance_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Balance_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKBalance* arg_conv = (LDKBalance*)arg;
+       LDKBalance* arg_conv = (LDKBalance*)untag_ptr(arg);
        int64_t ret_conv = Balance_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Balance_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKBalance* orig_conv = (LDKBalance*)orig;
+       LDKBalance* orig_conv = (LDKBalance*)untag_ptr(orig);
        LDKBalance *ret_copy = MALLOC(sizeof(LDKBalance), "LDKBalance");
        *ret_copy = Balance_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Balance_1claimable_1on_1channel_1close(JNIEnv *env, jclass clz, int64_t claimable_amount_satoshis) {
        LDKBalance *ret_copy = MALLOC(sizeof(LDKBalance), "LDKBalance");
        *ret_copy = Balance_claimable_on_channel_close(claimable_amount_satoshis);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Balance_1claimable_1awaiting_1confirmations(JNIEnv *env, jclass clz, int64_t claimable_amount_satoshis, int32_t confirmation_height) {
        LDKBalance *ret_copy = MALLOC(sizeof(LDKBalance), "LDKBalance");
        *ret_copy = Balance_claimable_awaiting_confirmations(claimable_amount_satoshis, confirmation_height);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Balance_1contentious_1claimable(JNIEnv *env, jclass clz, int64_t claimable_amount_satoshis, int32_t timeout_height) {
        LDKBalance *ret_copy = MALLOC(sizeof(LDKBalance), "LDKBalance");
        *ret_copy = Balance_contentious_claimable(claimable_amount_satoshis, timeout_height);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Balance_1maybe_1claimable_1htlcawaiting_1timeout(JNIEnv *env, jclass clz, int64_t claimable_amount_satoshis, int32_t claimable_height) {
        LDKBalance *ret_copy = MALLOC(sizeof(LDKBalance), "LDKBalance");
        *ret_copy = Balance_maybe_claimable_htlcawaiting_timeout(claimable_amount_satoshis, claimable_height);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_Balance_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
-       LDKBalance* a_conv = (LDKBalance*)a;
-       LDKBalance* b_conv = (LDKBalance*)b;
+       LDKBalance* a_conv = (LDKBalance*)untag_ptr(a);
+       LDKBalance* b_conv = (LDKBalance*)untag_ptr(b);
        jboolean ret_conv = Balance_eq(a_conv, b_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKChannelMonitor this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ChannelMonitor_free(this_obj_conv);
 }
 
-static inline uintptr_t ChannelMonitor_clone_ptr(LDKChannelMonitor *NONNULL_PTR arg) {
+static inline uint64_t ChannelMonitor_clone_ptr(LDKChannelMonitor *NONNULL_PTR arg) {
        LDKChannelMonitor ret_var = ChannelMonitor_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKChannelMonitor arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ChannelMonitor_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKChannelMonitor orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKChannelMonitor ret_var = ChannelMonitor_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKChannelMonitor obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = ChannelMonitor_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -27573,55 +26192,60 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1write(J
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1update_1monitor(JNIEnv *env, jclass clz, int64_t this_arg, int64_t updates, int64_t broadcaster, int64_t fee_estimator, int64_t logger) {
        LDKChannelMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKChannelMonitorUpdate updates_conv;
-       updates_conv.inner = (void*)(updates & (~1));
-       updates_conv.is_owned = false;
+       updates_conv.inner = untag_ptr(updates);
+       updates_conv.is_owned = ptr_is_owned(updates);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(updates_conv);
-       void* broadcaster_ptr = (void*)(((uintptr_t)broadcaster) & ~1);
-       if (!(broadcaster & 1)) { CHECK_ACCESS(broadcaster_ptr); }
+       updates_conv.is_owned = false;
+       void* broadcaster_ptr = untag_ptr(broadcaster);
+       if (ptr_is_owned(broadcaster)) { CHECK_ACCESS(broadcaster_ptr); }
        LDKBroadcasterInterface* broadcaster_conv = (LDKBroadcasterInterface*)broadcaster_ptr;
-       void* fee_estimator_ptr = (void*)(((uintptr_t)fee_estimator) & ~1);
+       void* fee_estimator_ptr = untag_ptr(fee_estimator);
        CHECK_ACCESS(fee_estimator_ptr);
        LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(fee_estimator_ptr);
        if (fee_estimator_conv.free == LDKFeeEstimator_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKFeeEstimator_JCalls_cloned(&fee_estimator_conv);
        }
-       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
-       if (!(logger & 1)) { CHECK_ACCESS(logger_ptr); }
+       void* logger_ptr = untag_ptr(logger);
+       if (ptr_is_owned(logger)) { CHECK_ACCESS(logger_ptr); }
        LDKLogger* logger_conv = (LDKLogger*)logger_ptr;
        LDKCResult_NoneNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneNoneZ), "LDKCResult_NoneNoneZ");
        *ret_conv = ChannelMonitor_update_monitor(&this_arg_conv, &updates_conv, broadcaster_conv, fee_estimator_conv, logger_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1get_1latest_1update_1id(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int64_t ret_conv = ChannelMonitor_get_latest_update_id(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1get_1funding_1txo(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKC2Tuple_OutPointScriptZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_OutPointScriptZ), "LDKC2Tuple_OutPointScriptZ");
        *ret_conv = ChannelMonitor_get_funding_txo(&this_arg_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1get_1outputs_1to_1watch(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCVec_C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZZ ret_var = ChannelMonitor_get_outputs_to_watch(&this_arg_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -27629,7 +26253,7 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1get_1o
        for (size_t o = 0; o < ret_var.datalen; o++) {
                LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ* ret_conv_40_conv = MALLOC(sizeof(LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ), "LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ");
                *ret_conv_40_conv = ret_var.data[o];
-               ret_arr_ptr[o] = ((int64_t)ret_conv_40_conv);
+               ret_arr_ptr[o] = tag_ptr(ret_conv_40_conv, true);
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
        FREE(ret_var.data);
@@ -27638,20 +26262,22 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1get_1o
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1load_1outputs_1to_1watch(JNIEnv *env, jclass clz, int64_t this_arg, int64_t filter) {
        LDKChannelMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
-       void* filter_ptr = (void*)(((uintptr_t)filter) & ~1);
-       if (!(filter & 1)) { CHECK_ACCESS(filter_ptr); }
+       this_arg_conv.is_owned = false;
+       void* filter_ptr = untag_ptr(filter);
+       if (ptr_is_owned(filter)) { CHECK_ACCESS(filter_ptr); }
        LDKFilter* filter_conv = (LDKFilter*)filter_ptr;
        ChannelMonitor_load_outputs_to_watch(&this_arg_conv, filter_conv);
 }
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1get_1and_1clear_1pending_1monitor_1events(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCVec_MonitorEventZ ret_var = ChannelMonitor_get_and_clear_pending_monitor_events(&this_arg_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -27659,7 +26285,7 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1get_1a
        for (size_t o = 0; o < ret_var.datalen; o++) {
                LDKMonitorEvent *ret_conv_14_copy = MALLOC(sizeof(LDKMonitorEvent), "LDKMonitorEvent");
                *ret_conv_14_copy = ret_var.data[o];
-               int64_t ret_conv_14_ref = (uintptr_t)ret_conv_14_copy;
+               int64_t ret_conv_14_ref = tag_ptr(ret_conv_14_copy, true);
                ret_arr_ptr[o] = ret_conv_14_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
@@ -27669,9 +26295,10 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1get_1a
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1get_1and_1clear_1pending_1events(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCVec_EventZ ret_var = ChannelMonitor_get_and_clear_pending_events(&this_arg_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -27679,7 +26306,7 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1get_1a
        for (size_t h = 0; h < ret_var.datalen; h++) {
                LDKEvent *ret_conv_7_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
                *ret_conv_7_copy = ret_var.data[h];
-               int64_t ret_conv_7_ref = (uintptr_t)ret_conv_7_copy;
+               int64_t ret_conv_7_ref = tag_ptr(ret_conv_7_copy, true);
                ret_arr_ptr[h] = ret_conv_7_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
@@ -27689,9 +26316,10 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1get_1a
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1get_1counterparty_1node_1id(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, ChannelMonitor_get_counterparty_node_id(&this_arg_conv).compressed_form);
        return ret_arr;
@@ -27699,11 +26327,12 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1get_1co
 
 JNIEXPORT jobjectArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1get_1latest_1holder_1commitment_1txn(JNIEnv *env, jclass clz, int64_t this_arg, int64_t logger) {
        LDKChannelMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
-       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
-       if (!(logger & 1)) { CHECK_ACCESS(logger_ptr); }
+       this_arg_conv.is_owned = false;
+       void* logger_ptr = untag_ptr(logger);
+       if (ptr_is_owned(logger)) { CHECK_ACCESS(logger_ptr); }
        LDKLogger* logger_conv = (LDKLogger*)logger_ptr;
        LDKCVec_TransactionZ ret_var = ChannelMonitor_get_latest_holder_commitment_txn(&this_arg_conv, logger_conv);
        jobjectArray ret_arr = NULL;
@@ -27723,9 +26352,10 @@ JNIEXPORT jobjectArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1get_1l
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1block_1connected(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray header, int64_tArray txdata, int32_t height, int64_t broadcaster, int64_t fee_estimator, int64_t logger) {
        LDKChannelMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        unsigned char header_arr[80];
        CHECK((*env)->GetArrayLength(env, header) == 80);
        (*env)->GetByteArrayRegion(env, header, 0, 80, header_arr);
@@ -27739,28 +26369,28 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1block_
        int64_t* txdata_vals = (*env)->GetLongArrayElements (env, txdata, NULL);
        for (size_t c = 0; c < txdata_constr.datalen; c++) {
                int64_t txdata_conv_28 = txdata_vals[c];
-               void* txdata_conv_28_ptr = (void*)(((uintptr_t)txdata_conv_28) & ~1);
+               void* txdata_conv_28_ptr = untag_ptr(txdata_conv_28);
                CHECK_ACCESS(txdata_conv_28_ptr);
                LDKC2Tuple_usizeTransactionZ txdata_conv_28_conv = *(LDKC2Tuple_usizeTransactionZ*)(txdata_conv_28_ptr);
-               txdata_conv_28_conv = C2Tuple_usizeTransactionZ_clone((LDKC2Tuple_usizeTransactionZ*)(((uintptr_t)txdata_conv_28) & ~1));
+               txdata_conv_28_conv = C2Tuple_usizeTransactionZ_clone((LDKC2Tuple_usizeTransactionZ*)untag_ptr(txdata_conv_28));
                txdata_constr.data[c] = txdata_conv_28_conv;
        }
        (*env)->ReleaseLongArrayElements(env, txdata, txdata_vals, 0);
-       void* broadcaster_ptr = (void*)(((uintptr_t)broadcaster) & ~1);
+       void* broadcaster_ptr = untag_ptr(broadcaster);
        CHECK_ACCESS(broadcaster_ptr);
        LDKBroadcasterInterface broadcaster_conv = *(LDKBroadcasterInterface*)(broadcaster_ptr);
        if (broadcaster_conv.free == LDKBroadcasterInterface_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKBroadcasterInterface_JCalls_cloned(&broadcaster_conv);
        }
-       void* fee_estimator_ptr = (void*)(((uintptr_t)fee_estimator) & ~1);
+       void* fee_estimator_ptr = untag_ptr(fee_estimator);
        CHECK_ACCESS(fee_estimator_ptr);
        LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(fee_estimator_ptr);
        if (fee_estimator_conv.free == LDKFeeEstimator_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKFeeEstimator_JCalls_cloned(&fee_estimator_conv);
        }
-       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
+       void* logger_ptr = untag_ptr(logger);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
        if (logger_conv.free == LDKLogger_JCalls_free) {
@@ -27774,7 +26404,7 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1block_
        for (size_t n = 0; n < ret_var.datalen; n++) {
                LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* ret_conv_39_conv = MALLOC(sizeof(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ), "LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ");
                *ret_conv_39_conv = ret_var.data[n];
-               ret_arr_ptr[n] = ((int64_t)ret_conv_39_conv);
+               ret_arr_ptr[n] = tag_ptr(ret_conv_39_conv, true);
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
        FREE(ret_var.data);
@@ -27783,28 +26413,29 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1block_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1block_1disconnected(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray header, int32_t height, int64_t broadcaster, int64_t fee_estimator, int64_t logger) {
        LDKChannelMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        unsigned char header_arr[80];
        CHECK((*env)->GetArrayLength(env, header) == 80);
        (*env)->GetByteArrayRegion(env, header, 0, 80, header_arr);
        unsigned char (*header_ref)[80] = &header_arr;
-       void* broadcaster_ptr = (void*)(((uintptr_t)broadcaster) & ~1);
+       void* broadcaster_ptr = untag_ptr(broadcaster);
        CHECK_ACCESS(broadcaster_ptr);
        LDKBroadcasterInterface broadcaster_conv = *(LDKBroadcasterInterface*)(broadcaster_ptr);
        if (broadcaster_conv.free == LDKBroadcasterInterface_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKBroadcasterInterface_JCalls_cloned(&broadcaster_conv);
        }
-       void* fee_estimator_ptr = (void*)(((uintptr_t)fee_estimator) & ~1);
+       void* fee_estimator_ptr = untag_ptr(fee_estimator);
        CHECK_ACCESS(fee_estimator_ptr);
        LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(fee_estimator_ptr);
        if (fee_estimator_conv.free == LDKFeeEstimator_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKFeeEstimator_JCalls_cloned(&fee_estimator_conv);
        }
-       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
+       void* logger_ptr = untag_ptr(logger);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
        if (logger_conv.free == LDKLogger_JCalls_free) {
@@ -27816,9 +26447,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1block_1disconn
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1transactions_1confirmed(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray header, int64_tArray txdata, int32_t height, int64_t broadcaster, int64_t fee_estimator, int64_t logger) {
        LDKChannelMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        unsigned char header_arr[80];
        CHECK((*env)->GetArrayLength(env, header) == 80);
        (*env)->GetByteArrayRegion(env, header, 0, 80, header_arr);
@@ -27832,28 +26464,28 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1transa
        int64_t* txdata_vals = (*env)->GetLongArrayElements (env, txdata, NULL);
        for (size_t c = 0; c < txdata_constr.datalen; c++) {
                int64_t txdata_conv_28 = txdata_vals[c];
-               void* txdata_conv_28_ptr = (void*)(((uintptr_t)txdata_conv_28) & ~1);
+               void* txdata_conv_28_ptr = untag_ptr(txdata_conv_28);
                CHECK_ACCESS(txdata_conv_28_ptr);
                LDKC2Tuple_usizeTransactionZ txdata_conv_28_conv = *(LDKC2Tuple_usizeTransactionZ*)(txdata_conv_28_ptr);
-               txdata_conv_28_conv = C2Tuple_usizeTransactionZ_clone((LDKC2Tuple_usizeTransactionZ*)(((uintptr_t)txdata_conv_28) & ~1));
+               txdata_conv_28_conv = C2Tuple_usizeTransactionZ_clone((LDKC2Tuple_usizeTransactionZ*)untag_ptr(txdata_conv_28));
                txdata_constr.data[c] = txdata_conv_28_conv;
        }
        (*env)->ReleaseLongArrayElements(env, txdata, txdata_vals, 0);
-       void* broadcaster_ptr = (void*)(((uintptr_t)broadcaster) & ~1);
+       void* broadcaster_ptr = untag_ptr(broadcaster);
        CHECK_ACCESS(broadcaster_ptr);
        LDKBroadcasterInterface broadcaster_conv = *(LDKBroadcasterInterface*)(broadcaster_ptr);
        if (broadcaster_conv.free == LDKBroadcasterInterface_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKBroadcasterInterface_JCalls_cloned(&broadcaster_conv);
        }
-       void* fee_estimator_ptr = (void*)(((uintptr_t)fee_estimator) & ~1);
+       void* fee_estimator_ptr = untag_ptr(fee_estimator);
        CHECK_ACCESS(fee_estimator_ptr);
        LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(fee_estimator_ptr);
        if (fee_estimator_conv.free == LDKFeeEstimator_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKFeeEstimator_JCalls_cloned(&fee_estimator_conv);
        }
-       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
+       void* logger_ptr = untag_ptr(logger);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
        if (logger_conv.free == LDKLogger_JCalls_free) {
@@ -27867,7 +26499,7 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1transa
        for (size_t n = 0; n < ret_var.datalen; n++) {
                LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* ret_conv_39_conv = MALLOC(sizeof(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ), "LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ");
                *ret_conv_39_conv = ret_var.data[n];
-               ret_arr_ptr[n] = ((int64_t)ret_conv_39_conv);
+               ret_arr_ptr[n] = tag_ptr(ret_conv_39_conv, true);
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
        FREE(ret_var.data);
@@ -27876,28 +26508,29 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1transa
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1transaction_1unconfirmed(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray txid, int64_t broadcaster, int64_t fee_estimator, int64_t logger) {
        LDKChannelMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        unsigned char txid_arr[32];
        CHECK((*env)->GetArrayLength(env, txid) == 32);
        (*env)->GetByteArrayRegion(env, txid, 0, 32, txid_arr);
        unsigned char (*txid_ref)[32] = &txid_arr;
-       void* broadcaster_ptr = (void*)(((uintptr_t)broadcaster) & ~1);
+       void* broadcaster_ptr = untag_ptr(broadcaster);
        CHECK_ACCESS(broadcaster_ptr);
        LDKBroadcasterInterface broadcaster_conv = *(LDKBroadcasterInterface*)(broadcaster_ptr);
        if (broadcaster_conv.free == LDKBroadcasterInterface_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKBroadcasterInterface_JCalls_cloned(&broadcaster_conv);
        }
-       void* fee_estimator_ptr = (void*)(((uintptr_t)fee_estimator) & ~1);
+       void* fee_estimator_ptr = untag_ptr(fee_estimator);
        CHECK_ACCESS(fee_estimator_ptr);
        LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(fee_estimator_ptr);
        if (fee_estimator_conv.free == LDKFeeEstimator_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKFeeEstimator_JCalls_cloned(&fee_estimator_conv);
        }
-       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
+       void* logger_ptr = untag_ptr(logger);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
        if (logger_conv.free == LDKLogger_JCalls_free) {
@@ -27909,28 +26542,29 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1transaction_1u
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1best_1block_1updated(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray header, int32_t height, int64_t broadcaster, int64_t fee_estimator, int64_t logger) {
        LDKChannelMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        unsigned char header_arr[80];
        CHECK((*env)->GetArrayLength(env, header) == 80);
        (*env)->GetByteArrayRegion(env, header, 0, 80, header_arr);
        unsigned char (*header_ref)[80] = &header_arr;
-       void* broadcaster_ptr = (void*)(((uintptr_t)broadcaster) & ~1);
+       void* broadcaster_ptr = untag_ptr(broadcaster);
        CHECK_ACCESS(broadcaster_ptr);
        LDKBroadcasterInterface broadcaster_conv = *(LDKBroadcasterInterface*)(broadcaster_ptr);
        if (broadcaster_conv.free == LDKBroadcasterInterface_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKBroadcasterInterface_JCalls_cloned(&broadcaster_conv);
        }
-       void* fee_estimator_ptr = (void*)(((uintptr_t)fee_estimator) & ~1);
+       void* fee_estimator_ptr = untag_ptr(fee_estimator);
        CHECK_ACCESS(fee_estimator_ptr);
        LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(fee_estimator_ptr);
        if (fee_estimator_conv.free == LDKFeeEstimator_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKFeeEstimator_JCalls_cloned(&fee_estimator_conv);
        }
-       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
+       void* logger_ptr = untag_ptr(logger);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
        if (logger_conv.free == LDKLogger_JCalls_free) {
@@ -27944,7 +26578,7 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1best_1
        for (size_t n = 0; n < ret_var.datalen; n++) {
                LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* ret_conv_39_conv = MALLOC(sizeof(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ), "LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ");
                *ret_conv_39_conv = ret_var.data[n];
-               ret_arr_ptr[n] = ((int64_t)ret_conv_39_conv);
+               ret_arr_ptr[n] = tag_ptr(ret_conv_39_conv, true);
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
        FREE(ret_var.data);
@@ -27953,9 +26587,10 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1best_1
 
 JNIEXPORT jobjectArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1get_1relevant_1txids(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCVec_TxidZ ret_var = ChannelMonitor_get_relevant_txids(&this_arg_conv);
        jobjectArray ret_arr = NULL;
        ret_arr = (*env)->NewObjectArray(env, ret_var.datalen, arr_of_B_clz, NULL);
@@ -27972,26 +26607,23 @@ JNIEXPORT jobjectArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1get_1r
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1current_1best_1block(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKBestBlock ret_var = ChannelMonitor_current_best_block(&this_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1get_1claimable_1balances(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelMonitor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCVec_BalanceZ ret_var = ChannelMonitor_get_claimable_balances(&this_arg_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -27999,7 +26631,7 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1get_1c
        for (size_t j = 0; j < ret_var.datalen; j++) {
                LDKBalance *ret_conv_9_copy = MALLOC(sizeof(LDKBalance), "LDKBalance");
                *ret_conv_9_copy = ret_var.data[j];
-               int64_t ret_conv_9_ref = (uintptr_t)ret_conv_9_copy;
+               int64_t ret_conv_9_ref = tag_ptr(ret_conv_9_copy, true);
                ret_arr_ptr[j] = ret_conv_9_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
@@ -28011,28 +26643,29 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1BlockHashChannelMo
        LDKu8slice ser_ref;
        ser_ref.datalen = (*env)->GetArrayLength(env, ser);
        ser_ref.data = (*env)->GetByteArrayElements (env, ser, NULL);
-       void* arg_ptr = (void*)(((uintptr_t)arg) & ~1);
-       if (!(arg & 1)) { CHECK_ACCESS(arg_ptr); }
+       void* arg_ptr = untag_ptr(arg);
+       if (ptr_is_owned(arg)) { CHECK_ACCESS(arg_ptr); }
        LDKKeysInterface* arg_conv = (LDKKeysInterface*)arg_ptr;
        LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ), "LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ");
        *ret_conv = C2Tuple_BlockHashChannelMonitorZ_read(ser_ref, arg_conv);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OutPoint_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKOutPoint this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        OutPoint_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_OutPoint_1get_1txid(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKOutPoint this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *OutPoint_get_txid(&this_ptr_conv));
        return ret_arr;
@@ -28040,9 +26673,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_OutPoint_1get_1txid(JNI
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OutPoint_1set_1txid(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKOutPoint this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -28051,18 +26685,20 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OutPoint_1set_1txid(JNIEnv *en
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_OutPoint_1get_1index(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKOutPoint this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int16_t ret_conv = OutPoint_get_index(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OutPoint_1set_1index(JNIEnv *env, jclass clz, int64_t this_ptr, int16_t val) {
        LDKOutPoint this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        OutPoint_set_index(&this_ptr_conv, val);
 }
 
@@ -28072,81 +26708,72 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_OutPoint_1new(JNIEnv *env,
        (*env)->GetByteArrayRegion(env, txid_arg, 0, 32, txid_arg_ref.data);
        LDKOutPoint ret_var = OutPoint_new(txid_arg_ref, index_arg);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t OutPoint_clone_ptr(LDKOutPoint *NONNULL_PTR arg) {
+static inline uint64_t OutPoint_clone_ptr(LDKOutPoint *NONNULL_PTR arg) {
        LDKOutPoint ret_var = OutPoint_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_OutPoint_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKOutPoint arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = OutPoint_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_OutPoint_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKOutPoint orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKOutPoint ret_var = OutPoint_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_OutPoint_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKOutPoint a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKOutPoint b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = OutPoint_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_OutPoint_1hash(JNIEnv *env, jclass clz, int64_t o) {
        LDKOutPoint o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = false;
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
+       o_conv.is_owned = false;
        int64_t ret_conv = OutPoint_hash(&o_conv);
        return ret_conv;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_OutPoint_1to_1channel_1id(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKOutPoint this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, OutPoint_to_channel_id(&this_arg_conv).data);
        return ret_arr;
@@ -28154,9 +26781,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_OutPoint_1to_1channel_1
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_OutPoint_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKOutPoint obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = OutPoint_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -28171,42 +26799,39 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_OutPoint_1read(JNIEnv *env,
        LDKCResult_OutPointDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_OutPointDecodeErrorZ), "LDKCResult_OutPointDecodeErrorZ");
        *ret_conv = OutPoint_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescriptor_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKDelayedPaymentOutputDescriptor this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        DelayedPaymentOutputDescriptor_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescriptor_1get_1outpoint(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKDelayedPaymentOutputDescriptor this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKOutPoint ret_var = DelayedPaymentOutputDescriptor_get_outpoint(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescriptor_1set_1outpoint(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKDelayedPaymentOutputDescriptor this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKOutPoint val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = OutPoint_clone(&val_conv);
        DelayedPaymentOutputDescriptor_set_outpoint(&this_ptr_conv, val_conv);
@@ -28214,9 +26839,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescriptor
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescriptor_1get_1per_1commitment_1point(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKDelayedPaymentOutputDescriptor this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, DelayedPaymentOutputDescriptor_get_per_commitment_point(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -28224,9 +26850,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDes
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescriptor_1set_1per_1commitment_1point(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKDelayedPaymentOutputDescriptor this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -28235,48 +26862,53 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescriptor
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescriptor_1get_1to_1self_1delay(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKDelayedPaymentOutputDescriptor this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int16_t ret_conv = DelayedPaymentOutputDescriptor_get_to_self_delay(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescriptor_1set_1to_1self_1delay(JNIEnv *env, jclass clz, int64_t this_ptr, int16_t val) {
        LDKDelayedPaymentOutputDescriptor this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        DelayedPaymentOutputDescriptor_set_to_self_delay(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescriptor_1get_1output(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKDelayedPaymentOutputDescriptor this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKTxOut* ret_ref = MALLOC(sizeof(LDKTxOut), "LDKTxOut");
        *ret_ref = DelayedPaymentOutputDescriptor_get_output(&this_ptr_conv);
-       return (int64_t)ret_ref;
+       return tag_ptr(ret_ref, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescriptor_1set_1output(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKDelayedPaymentOutputDescriptor this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKTxOut val_conv = *(LDKTxOut*)(val_ptr);
-       val_conv = TxOut_clone((LDKTxOut*)(((uintptr_t)val) & ~1));
+       val_conv = TxOut_clone((LDKTxOut*)untag_ptr(val));
        DelayedPaymentOutputDescriptor_set_output(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescriptor_1get_1revocation_1pubkey(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKDelayedPaymentOutputDescriptor this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, DelayedPaymentOutputDescriptor_get_revocation_pubkey(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -28284,9 +26916,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDes
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescriptor_1set_1revocation_1pubkey(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKDelayedPaymentOutputDescriptor this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -28295,9 +26928,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescriptor
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescriptor_1get_1channel_1keys_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKDelayedPaymentOutputDescriptor this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *DelayedPaymentOutputDescriptor_get_channel_keys_id(&this_ptr_conv));
        return ret_arr;
@@ -28305,9 +26939,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDes
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescriptor_1set_1channel_1keys_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKDelayedPaymentOutputDescriptor this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -28316,34 +26951,36 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescriptor
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescriptor_1get_1channel_1value_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKDelayedPaymentOutputDescriptor this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = DelayedPaymentOutputDescriptor_get_channel_value_satoshis(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescriptor_1set_1channel_1value_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKDelayedPaymentOutputDescriptor this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        DelayedPaymentOutputDescriptor_set_channel_value_satoshis(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescriptor_1new(JNIEnv *env, jclass clz, int64_t outpoint_arg, int8_tArray per_commitment_point_arg, int16_t to_self_delay_arg, int64_t output_arg, int8_tArray revocation_pubkey_arg, int8_tArray channel_keys_id_arg, int64_t channel_value_satoshis_arg) {
        LDKOutPoint outpoint_arg_conv;
-       outpoint_arg_conv.inner = (void*)(outpoint_arg & (~1));
-       outpoint_arg_conv.is_owned = (outpoint_arg & 1) || (outpoint_arg == 0);
+       outpoint_arg_conv.inner = untag_ptr(outpoint_arg);
+       outpoint_arg_conv.is_owned = ptr_is_owned(outpoint_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(outpoint_arg_conv);
        outpoint_arg_conv = OutPoint_clone(&outpoint_arg_conv);
        LDKPublicKey per_commitment_point_arg_ref;
        CHECK((*env)->GetArrayLength(env, per_commitment_point_arg) == 33);
        (*env)->GetByteArrayRegion(env, per_commitment_point_arg, 0, 33, per_commitment_point_arg_ref.compressed_form);
-       void* output_arg_ptr = (void*)(((uintptr_t)output_arg) & ~1);
+       void* output_arg_ptr = untag_ptr(output_arg);
        CHECK_ACCESS(output_arg_ptr);
        LDKTxOut output_arg_conv = *(LDKTxOut*)(output_arg_ptr);
-       output_arg_conv = TxOut_clone((LDKTxOut*)(((uintptr_t)output_arg) & ~1));
+       output_arg_conv = TxOut_clone((LDKTxOut*)untag_ptr(output_arg));
        LDKPublicKey revocation_pubkey_arg_ref;
        CHECK((*env)->GetArrayLength(env, revocation_pubkey_arg) == 33);
        (*env)->GetByteArrayRegion(env, revocation_pubkey_arg, 0, 33, revocation_pubkey_arg_ref.compressed_form);
@@ -28352,59 +26989,47 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescrip
        (*env)->GetByteArrayRegion(env, channel_keys_id_arg, 0, 32, channel_keys_id_arg_ref.data);
        LDKDelayedPaymentOutputDescriptor ret_var = DelayedPaymentOutputDescriptor_new(outpoint_arg_conv, per_commitment_point_arg_ref, to_self_delay_arg, output_arg_conv, revocation_pubkey_arg_ref, channel_keys_id_arg_ref, channel_value_satoshis_arg);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t DelayedPaymentOutputDescriptor_clone_ptr(LDKDelayedPaymentOutputDescriptor *NONNULL_PTR arg) {
+static inline uint64_t DelayedPaymentOutputDescriptor_clone_ptr(LDKDelayedPaymentOutputDescriptor *NONNULL_PTR arg) {
        LDKDelayedPaymentOutputDescriptor ret_var = DelayedPaymentOutputDescriptor_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescriptor_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKDelayedPaymentOutputDescriptor arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = DelayedPaymentOutputDescriptor_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescriptor_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKDelayedPaymentOutputDescriptor orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKDelayedPaymentOutputDescriptor ret_var = DelayedPaymentOutputDescriptor_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescriptor_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKDelayedPaymentOutputDescriptor obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = DelayedPaymentOutputDescriptor_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -28419,42 +27044,39 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescrip
        LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ), "LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ");
        *ret_conv = DelayedPaymentOutputDescriptor_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_StaticPaymentOutputDescriptor_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKStaticPaymentOutputDescriptor this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        StaticPaymentOutputDescriptor_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_StaticPaymentOutputDescriptor_1get_1outpoint(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKStaticPaymentOutputDescriptor this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKOutPoint ret_var = StaticPaymentOutputDescriptor_get_outpoint(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_StaticPaymentOutputDescriptor_1set_1outpoint(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKStaticPaymentOutputDescriptor this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKOutPoint val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = OutPoint_clone(&val_conv);
        StaticPaymentOutputDescriptor_set_outpoint(&this_ptr_conv, val_conv);
@@ -28462,31 +27084,34 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_StaticPaymentOutputDescriptor_
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_StaticPaymentOutputDescriptor_1get_1output(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKStaticPaymentOutputDescriptor this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKTxOut* ret_ref = MALLOC(sizeof(LDKTxOut), "LDKTxOut");
        *ret_ref = StaticPaymentOutputDescriptor_get_output(&this_ptr_conv);
-       return (int64_t)ret_ref;
+       return tag_ptr(ret_ref, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_StaticPaymentOutputDescriptor_1set_1output(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKStaticPaymentOutputDescriptor this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKTxOut val_conv = *(LDKTxOut*)(val_ptr);
-       val_conv = TxOut_clone((LDKTxOut*)(((uintptr_t)val) & ~1));
+       val_conv = TxOut_clone((LDKTxOut*)untag_ptr(val));
        StaticPaymentOutputDescriptor_set_output(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_StaticPaymentOutputDescriptor_1get_1channel_1keys_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKStaticPaymentOutputDescriptor this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *StaticPaymentOutputDescriptor_get_channel_keys_id(&this_ptr_conv));
        return ret_arr;
@@ -28494,9 +27119,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_StaticPaymentOutputDesc
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_StaticPaymentOutputDescriptor_1set_1channel_1keys_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKStaticPaymentOutputDescriptor this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -28505,89 +27131,79 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_StaticPaymentOutputDescriptor_
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_StaticPaymentOutputDescriptor_1get_1channel_1value_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKStaticPaymentOutputDescriptor this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = StaticPaymentOutputDescriptor_get_channel_value_satoshis(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_StaticPaymentOutputDescriptor_1set_1channel_1value_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKStaticPaymentOutputDescriptor this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        StaticPaymentOutputDescriptor_set_channel_value_satoshis(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_StaticPaymentOutputDescriptor_1new(JNIEnv *env, jclass clz, int64_t outpoint_arg, int64_t output_arg, int8_tArray channel_keys_id_arg, int64_t channel_value_satoshis_arg) {
        LDKOutPoint outpoint_arg_conv;
-       outpoint_arg_conv.inner = (void*)(outpoint_arg & (~1));
-       outpoint_arg_conv.is_owned = (outpoint_arg & 1) || (outpoint_arg == 0);
+       outpoint_arg_conv.inner = untag_ptr(outpoint_arg);
+       outpoint_arg_conv.is_owned = ptr_is_owned(outpoint_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(outpoint_arg_conv);
        outpoint_arg_conv = OutPoint_clone(&outpoint_arg_conv);
-       void* output_arg_ptr = (void*)(((uintptr_t)output_arg) & ~1);
+       void* output_arg_ptr = untag_ptr(output_arg);
        CHECK_ACCESS(output_arg_ptr);
        LDKTxOut output_arg_conv = *(LDKTxOut*)(output_arg_ptr);
-       output_arg_conv = TxOut_clone((LDKTxOut*)(((uintptr_t)output_arg) & ~1));
+       output_arg_conv = TxOut_clone((LDKTxOut*)untag_ptr(output_arg));
        LDKThirtyTwoBytes channel_keys_id_arg_ref;
        CHECK((*env)->GetArrayLength(env, channel_keys_id_arg) == 32);
        (*env)->GetByteArrayRegion(env, channel_keys_id_arg, 0, 32, channel_keys_id_arg_ref.data);
        LDKStaticPaymentOutputDescriptor ret_var = StaticPaymentOutputDescriptor_new(outpoint_arg_conv, output_arg_conv, channel_keys_id_arg_ref, channel_value_satoshis_arg);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t StaticPaymentOutputDescriptor_clone_ptr(LDKStaticPaymentOutputDescriptor *NONNULL_PTR arg) {
+static inline uint64_t StaticPaymentOutputDescriptor_clone_ptr(LDKStaticPaymentOutputDescriptor *NONNULL_PTR arg) {
        LDKStaticPaymentOutputDescriptor ret_var = StaticPaymentOutputDescriptor_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_StaticPaymentOutputDescriptor_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKStaticPaymentOutputDescriptor arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = StaticPaymentOutputDescriptor_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_StaticPaymentOutputDescriptor_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKStaticPaymentOutputDescriptor orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKStaticPaymentOutputDescriptor ret_var = StaticPaymentOutputDescriptor_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_StaticPaymentOutputDescriptor_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKStaticPaymentOutputDescriptor obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = StaticPaymentOutputDescriptor_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -28602,80 +27218,80 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_StaticPaymentOutputDescript
        LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ), "LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ");
        *ret_conv = StaticPaymentOutputDescriptor_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_SpendableOutputDescriptor_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKSpendableOutputDescriptor this_ptr_conv = *(LDKSpendableOutputDescriptor*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        SpendableOutputDescriptor_free(this_ptr_conv);
 }
 
-static inline uintptr_t SpendableOutputDescriptor_clone_ptr(LDKSpendableOutputDescriptor *NONNULL_PTR arg) {
+static inline uint64_t SpendableOutputDescriptor_clone_ptr(LDKSpendableOutputDescriptor *NONNULL_PTR arg) {
        LDKSpendableOutputDescriptor *ret_copy = MALLOC(sizeof(LDKSpendableOutputDescriptor), "LDKSpendableOutputDescriptor");
        *ret_copy = SpendableOutputDescriptor_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SpendableOutputDescriptor_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKSpendableOutputDescriptor* arg_conv = (LDKSpendableOutputDescriptor*)arg;
+       LDKSpendableOutputDescriptor* arg_conv = (LDKSpendableOutputDescriptor*)untag_ptr(arg);
        int64_t ret_conv = SpendableOutputDescriptor_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SpendableOutputDescriptor_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKSpendableOutputDescriptor* orig_conv = (LDKSpendableOutputDescriptor*)orig;
+       LDKSpendableOutputDescriptor* orig_conv = (LDKSpendableOutputDescriptor*)untag_ptr(orig);
        LDKSpendableOutputDescriptor *ret_copy = MALLOC(sizeof(LDKSpendableOutputDescriptor), "LDKSpendableOutputDescriptor");
        *ret_copy = SpendableOutputDescriptor_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SpendableOutputDescriptor_1static_1output(JNIEnv *env, jclass clz, int64_t outpoint, int64_t output) {
        LDKOutPoint outpoint_conv;
-       outpoint_conv.inner = (void*)(outpoint & (~1));
-       outpoint_conv.is_owned = (outpoint & 1) || (outpoint == 0);
+       outpoint_conv.inner = untag_ptr(outpoint);
+       outpoint_conv.is_owned = ptr_is_owned(outpoint);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(outpoint_conv);
        outpoint_conv = OutPoint_clone(&outpoint_conv);
-       void* output_ptr = (void*)(((uintptr_t)output) & ~1);
+       void* output_ptr = untag_ptr(output);
        CHECK_ACCESS(output_ptr);
        LDKTxOut output_conv = *(LDKTxOut*)(output_ptr);
-       output_conv = TxOut_clone((LDKTxOut*)(((uintptr_t)output) & ~1));
+       output_conv = TxOut_clone((LDKTxOut*)untag_ptr(output));
        LDKSpendableOutputDescriptor *ret_copy = MALLOC(sizeof(LDKSpendableOutputDescriptor), "LDKSpendableOutputDescriptor");
        *ret_copy = SpendableOutputDescriptor_static_output(outpoint_conv, output_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SpendableOutputDescriptor_1delayed_1payment_1output(JNIEnv *env, jclass clz, int64_t a) {
        LDKDelayedPaymentOutputDescriptor a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = (a & 1) || (a == 0);
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
        a_conv = DelayedPaymentOutputDescriptor_clone(&a_conv);
        LDKSpendableOutputDescriptor *ret_copy = MALLOC(sizeof(LDKSpendableOutputDescriptor), "LDKSpendableOutputDescriptor");
        *ret_copy = SpendableOutputDescriptor_delayed_payment_output(a_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SpendableOutputDescriptor_1static_1payment_1output(JNIEnv *env, jclass clz, int64_t a) {
        LDKStaticPaymentOutputDescriptor a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = (a & 1) || (a == 0);
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
        a_conv = StaticPaymentOutputDescriptor_clone(&a_conv);
        LDKSpendableOutputDescriptor *ret_copy = MALLOC(sizeof(LDKSpendableOutputDescriptor), "LDKSpendableOutputDescriptor");
        *ret_copy = SpendableOutputDescriptor_static_payment_output(a_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_SpendableOutputDescriptor_1write(JNIEnv *env, jclass clz, int64_t obj) {
-       LDKSpendableOutputDescriptor* obj_conv = (LDKSpendableOutputDescriptor*)obj;
+       LDKSpendableOutputDescriptor* obj_conv = (LDKSpendableOutputDescriptor*)untag_ptr(obj);
        LDKCVec_u8Z ret_var = SpendableOutputDescriptor_write(obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -28690,51 +27306,51 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SpendableOutputDescriptor_1
        LDKCResult_SpendableOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SpendableOutputDescriptorDecodeErrorZ), "LDKCResult_SpendableOutputDescriptorDecodeErrorZ");
        *ret_conv = SpendableOutputDescriptor_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_BaseSign_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKBaseSign this_ptr_conv = *(LDKBaseSign*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        BaseSign_free(this_ptr_conv);
 }
 
-static inline uintptr_t Sign_clone_ptr(LDKSign *NONNULL_PTR arg) {
+static inline uint64_t Sign_clone_ptr(LDKSign *NONNULL_PTR arg) {
        LDKSign* ret_ret = MALLOC(sizeof(LDKSign), "LDKSign");
        *ret_ret = Sign_clone(arg);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Sign_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       void* arg_ptr = (void*)(((uintptr_t)arg) & ~1);
-       if (!(arg & 1)) { CHECK_ACCESS(arg_ptr); }
+       void* arg_ptr = untag_ptr(arg);
+       if (ptr_is_owned(arg)) { CHECK_ACCESS(arg_ptr); }
        LDKSign* arg_conv = (LDKSign*)arg_ptr;
        int64_t ret_conv = Sign_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Sign_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       void* orig_ptr = (void*)(((uintptr_t)orig) & ~1);
-       if (!(orig & 1)) { CHECK_ACCESS(orig_ptr); }
+       void* orig_ptr = untag_ptr(orig);
+       if (ptr_is_owned(orig)) { CHECK_ACCESS(orig_ptr); }
        LDKSign* orig_conv = (LDKSign*)orig_ptr;
        LDKSign* ret_ret = MALLOC(sizeof(LDKSign), "LDKSign");
        *ret_ret = Sign_clone(orig_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Sign_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKSign this_ptr_conv = *(LDKSign*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        Sign_free(this_ptr_conv);
 }
 
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_Recipient_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKRecipient* orig_conv = (LDKRecipient*)(orig & ~1);
+       LDKRecipient* orig_conv = (LDKRecipient*)untag_ptr(orig);
        jclass ret_conv = LDKRecipient_to_java(env, Recipient_clone(orig_conv));
        return ret_conv;
 }
@@ -28750,27 +27366,28 @@ JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_Recipient_1phantom_1node(JNI
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_KeysInterface_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKKeysInterface this_ptr_conv = *(LDKKeysInterface*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        KeysInterface_free(this_ptr_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKInMemorySigner this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        InMemorySigner_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1get_1funding_1key(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKInMemorySigner this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *InMemorySigner_get_funding_key(&this_ptr_conv));
        return ret_arr;
@@ -28778,9 +27395,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1get_1fu
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1set_1funding_1key(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKInMemorySigner this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKSecretKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.bytes);
@@ -28789,9 +27407,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1set_1funding_1
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1get_1revocation_1base_1key(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKInMemorySigner this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *InMemorySigner_get_revocation_base_key(&this_ptr_conv));
        return ret_arr;
@@ -28799,9 +27418,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1get_1re
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1set_1revocation_1base_1key(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKInMemorySigner this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKSecretKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.bytes);
@@ -28810,9 +27430,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1set_1revocatio
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1get_1payment_1key(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKInMemorySigner this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *InMemorySigner_get_payment_key(&this_ptr_conv));
        return ret_arr;
@@ -28820,9 +27441,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1get_1pa
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1set_1payment_1key(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKInMemorySigner this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKSecretKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.bytes);
@@ -28831,9 +27453,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1set_1payment_1
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1get_1delayed_1payment_1base_1key(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKInMemorySigner this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *InMemorySigner_get_delayed_payment_base_key(&this_ptr_conv));
        return ret_arr;
@@ -28841,9 +27464,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1get_1de
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1set_1delayed_1payment_1base_1key(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKInMemorySigner this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKSecretKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.bytes);
@@ -28852,9 +27476,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1set_1delayed_1
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1get_1htlc_1base_1key(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKInMemorySigner this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *InMemorySigner_get_htlc_base_key(&this_ptr_conv));
        return ret_arr;
@@ -28862,9 +27487,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1get_1ht
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1set_1htlc_1base_1key(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKInMemorySigner this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKSecretKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.bytes);
@@ -28873,9 +27499,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1set_1htlc_1bas
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1get_1commitment_1seed(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKInMemorySigner this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *InMemorySigner_get_commitment_seed(&this_ptr_conv));
        return ret_arr;
@@ -28883,50 +27510,43 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1get_1co
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1set_1commitment_1seed(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKInMemorySigner this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
        InMemorySigner_set_commitment_seed(&this_ptr_conv, val_ref);
 }
 
-static inline uintptr_t InMemorySigner_clone_ptr(LDKInMemorySigner *NONNULL_PTR arg) {
+static inline uint64_t InMemorySigner_clone_ptr(LDKInMemorySigner *NONNULL_PTR arg) {
        LDKInMemorySigner ret_var = InMemorySigner_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKInMemorySigner arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = InMemorySigner_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKInMemorySigner orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKInMemorySigner ret_var = InMemorySigner_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -28957,166 +27577,160 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1new(JNIEnv
        (*env)->GetByteArrayRegion(env, channel_keys_id, 0, 32, channel_keys_id_ref.data);
        LDKInMemorySigner ret_var = InMemorySigner_new(node_secret_ref, funding_key_ref, revocation_base_key_ref, payment_key_ref, delayed_payment_base_key_ref, htlc_base_key_ref, commitment_seed_ref, channel_value_satoshis, channel_keys_id_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1counterparty_1pubkeys(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInMemorySigner this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKChannelPublicKeys ret_var = InMemorySigner_counterparty_pubkeys(&this_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1counterparty_1selected_1contest_1delay(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInMemorySigner this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int16_t ret_conv = InMemorySigner_counterparty_selected_contest_delay(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1holder_1selected_1contest_1delay(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInMemorySigner this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int16_t ret_conv = InMemorySigner_holder_selected_contest_delay(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1is_1outbound(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInMemorySigner this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InMemorySigner_is_outbound(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1funding_1outpoint(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInMemorySigner this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKOutPoint ret_var = InMemorySigner_funding_outpoint(&this_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1get_1channel_1parameters(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInMemorySigner this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKChannelTransactionParameters ret_var = InMemorySigner_get_channel_parameters(&this_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1opt_1anchors(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInMemorySigner this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InMemorySigner_opt_anchors(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1sign_1counterparty_1payment_1input(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray spend_tx, int64_t input_idx, int64_t descriptor) {
        LDKInMemorySigner this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKTransaction spend_tx_ref;
        spend_tx_ref.datalen = (*env)->GetArrayLength(env, spend_tx);
        spend_tx_ref.data = MALLOC(spend_tx_ref.datalen, "LDKTransaction Bytes");
        (*env)->GetByteArrayRegion(env, spend_tx, 0, spend_tx_ref.datalen, spend_tx_ref.data);
        spend_tx_ref.data_is_owned = true;
        LDKStaticPaymentOutputDescriptor descriptor_conv;
-       descriptor_conv.inner = (void*)(descriptor & (~1));
-       descriptor_conv.is_owned = false;
+       descriptor_conv.inner = untag_ptr(descriptor);
+       descriptor_conv.is_owned = ptr_is_owned(descriptor);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(descriptor_conv);
+       descriptor_conv.is_owned = false;
        LDKCResult_CVec_CVec_u8ZZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_CVec_u8ZZNoneZ), "LDKCResult_CVec_CVec_u8ZZNoneZ");
        *ret_conv = InMemorySigner_sign_counterparty_payment_input(&this_arg_conv, spend_tx_ref, input_idx, &descriptor_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1sign_1dynamic_1p2wsh_1input(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray spend_tx, int64_t input_idx, int64_t descriptor) {
        LDKInMemorySigner this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKTransaction spend_tx_ref;
        spend_tx_ref.datalen = (*env)->GetArrayLength(env, spend_tx);
        spend_tx_ref.data = MALLOC(spend_tx_ref.datalen, "LDKTransaction Bytes");
        (*env)->GetByteArrayRegion(env, spend_tx, 0, spend_tx_ref.datalen, spend_tx_ref.data);
        spend_tx_ref.data_is_owned = true;
        LDKDelayedPaymentOutputDescriptor descriptor_conv;
-       descriptor_conv.inner = (void*)(descriptor & (~1));
-       descriptor_conv.is_owned = false;
+       descriptor_conv.inner = untag_ptr(descriptor);
+       descriptor_conv.is_owned = ptr_is_owned(descriptor);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(descriptor_conv);
+       descriptor_conv.is_owned = false;
        LDKCResult_CVec_CVec_u8ZZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_CVec_u8ZZNoneZ), "LDKCResult_CVec_CVec_u8ZZNoneZ");
        *ret_conv = InMemorySigner_sign_dynamic_p2wsh_input(&this_arg_conv, spend_tx_ref, input_idx, &descriptor_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1as_1BaseSign(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInMemorySigner this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKBaseSign* ret_ret = MALLOC(sizeof(LDKBaseSign), "LDKBaseSign");
        *ret_ret = InMemorySigner_as_BaseSign(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1as_1Sign(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInMemorySigner this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKSign* ret_ret = MALLOC(sizeof(LDKSign), "LDKSign");
        *ret_ret = InMemorySigner_as_Sign(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKInMemorySigner obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = InMemorySigner_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -29134,13 +27748,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InMemorySigner_1read(JNIEnv
        LDKCResult_InMemorySignerDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InMemorySignerDecodeErrorZ), "LDKCResult_InMemorySignerDecodeErrorZ");
        *ret_conv = InMemorySigner_read(ser_ref, arg_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_KeysManager_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKKeysManager this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        KeysManager_free(this_obj_conv);
 }
@@ -29152,42 +27766,34 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_KeysManager_1new(JNIEnv *en
        unsigned char (*seed_ref)[32] = &seed_arr;
        LDKKeysManager ret_var = KeysManager_new(seed_ref, starting_time_secs, starting_time_nanos);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_KeysManager_1derive_1channel_1keys(JNIEnv *env, jclass clz, int64_t this_arg, int64_t channel_value_satoshis, int8_tArray params) {
        LDKKeysManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        unsigned char params_arr[32];
        CHECK((*env)->GetArrayLength(env, params) == 32);
        (*env)->GetByteArrayRegion(env, params, 0, 32, params_arr);
        unsigned char (*params_ref)[32] = &params_arr;
        LDKInMemorySigner ret_var = KeysManager_derive_channel_keys(&this_arg_conv, channel_value_satoshis, params_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_KeysManager_1spend_1spendable_1outputs(JNIEnv *env, jclass clz, int64_t this_arg, int64_tArray descriptors, int64_tArray outputs, int8_tArray change_destination_script, int32_t feerate_sat_per_1000_weight) {
        LDKKeysManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCVec_SpendableOutputDescriptorZ descriptors_constr;
        descriptors_constr.datalen = (*env)->GetArrayLength(env, descriptors);
        if (descriptors_constr.datalen > 0)
@@ -29197,10 +27803,10 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_KeysManager_1spend_1spendab
        int64_t* descriptors_vals = (*env)->GetLongArrayElements (env, descriptors, NULL);
        for (size_t b = 0; b < descriptors_constr.datalen; b++) {
                int64_t descriptors_conv_27 = descriptors_vals[b];
-               void* descriptors_conv_27_ptr = (void*)(((uintptr_t)descriptors_conv_27) & ~1);
+               void* descriptors_conv_27_ptr = untag_ptr(descriptors_conv_27);
                CHECK_ACCESS(descriptors_conv_27_ptr);
                LDKSpendableOutputDescriptor descriptors_conv_27_conv = *(LDKSpendableOutputDescriptor*)(descriptors_conv_27_ptr);
-               descriptors_conv_27_conv = SpendableOutputDescriptor_clone((LDKSpendableOutputDescriptor*)(((uintptr_t)descriptors_conv_27) & ~1));
+               descriptors_conv_27_conv = SpendableOutputDescriptor_clone((LDKSpendableOutputDescriptor*)untag_ptr(descriptors_conv_27));
                descriptors_constr.data[b] = descriptors_conv_27_conv;
        }
        (*env)->ReleaseLongArrayElements(env, descriptors, descriptors_vals, 0);
@@ -29213,10 +27819,10 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_KeysManager_1spend_1spendab
        int64_t* outputs_vals = (*env)->GetLongArrayElements (env, outputs, NULL);
        for (size_t h = 0; h < outputs_constr.datalen; h++) {
                int64_t outputs_conv_7 = outputs_vals[h];
-               void* outputs_conv_7_ptr = (void*)(((uintptr_t)outputs_conv_7) & ~1);
+               void* outputs_conv_7_ptr = untag_ptr(outputs_conv_7);
                CHECK_ACCESS(outputs_conv_7_ptr);
                LDKTxOut outputs_conv_7_conv = *(LDKTxOut*)(outputs_conv_7_ptr);
-               outputs_conv_7_conv = TxOut_clone((LDKTxOut*)(((uintptr_t)outputs_conv_7) & ~1));
+               outputs_conv_7_conv = TxOut_clone((LDKTxOut*)untag_ptr(outputs_conv_7));
                outputs_constr.data[h] = outputs_conv_7_conv;
        }
        (*env)->ReleaseLongArrayElements(env, outputs, outputs_vals, 0);
@@ -29226,35 +27832,37 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_KeysManager_1spend_1spendab
        (*env)->GetByteArrayRegion(env, change_destination_script, 0, change_destination_script_ref.datalen, change_destination_script_ref.data);
        LDKCResult_TransactionNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_TransactionNoneZ), "LDKCResult_TransactionNoneZ");
        *ret_conv = KeysManager_spend_spendable_outputs(&this_arg_conv, descriptors_constr, outputs_constr, change_destination_script_ref, feerate_sat_per_1000_weight);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_KeysManager_1as_1KeysInterface(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKKeysManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKKeysInterface* ret_ret = MALLOC(sizeof(LDKKeysInterface), "LDKKeysInterface");
        *ret_ret = KeysManager_as_KeysInterface(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PhantomKeysManager_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKPhantomKeysManager this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        PhantomKeysManager_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PhantomKeysManager_1as_1KeysInterface(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKPhantomKeysManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKKeysInterface* ret_ret = MALLOC(sizeof(LDKKeysInterface), "LDKKeysInterface");
        *ret_ret = PhantomKeysManager_as_KeysInterface(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PhantomKeysManager_1new(JNIEnv *env, jclass clz, int8_tArray seed, int64_t starting_time_secs, int32_t starting_time_nanos, int8_tArray cross_node_seed) {
@@ -29268,21 +27876,17 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PhantomKeysManager_1new(JNI
        unsigned char (*cross_node_seed_ref)[32] = &cross_node_seed_arr;
        LDKPhantomKeysManager ret_var = PhantomKeysManager_new(seed_ref, starting_time_secs, starting_time_nanos, cross_node_seed_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PhantomKeysManager_1spend_1spendable_1outputs(JNIEnv *env, jclass clz, int64_t this_arg, int64_tArray descriptors, int64_tArray outputs, int8_tArray change_destination_script, int32_t feerate_sat_per_1000_weight) {
        LDKPhantomKeysManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCVec_SpendableOutputDescriptorZ descriptors_constr;
        descriptors_constr.datalen = (*env)->GetArrayLength(env, descriptors);
        if (descriptors_constr.datalen > 0)
@@ -29292,10 +27896,10 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PhantomKeysManager_1spend_1
        int64_t* descriptors_vals = (*env)->GetLongArrayElements (env, descriptors, NULL);
        for (size_t b = 0; b < descriptors_constr.datalen; b++) {
                int64_t descriptors_conv_27 = descriptors_vals[b];
-               void* descriptors_conv_27_ptr = (void*)(((uintptr_t)descriptors_conv_27) & ~1);
+               void* descriptors_conv_27_ptr = untag_ptr(descriptors_conv_27);
                CHECK_ACCESS(descriptors_conv_27_ptr);
                LDKSpendableOutputDescriptor descriptors_conv_27_conv = *(LDKSpendableOutputDescriptor*)(descriptors_conv_27_ptr);
-               descriptors_conv_27_conv = SpendableOutputDescriptor_clone((LDKSpendableOutputDescriptor*)(((uintptr_t)descriptors_conv_27) & ~1));
+               descriptors_conv_27_conv = SpendableOutputDescriptor_clone((LDKSpendableOutputDescriptor*)untag_ptr(descriptors_conv_27));
                descriptors_constr.data[b] = descriptors_conv_27_conv;
        }
        (*env)->ReleaseLongArrayElements(env, descriptors, descriptors_vals, 0);
@@ -29308,10 +27912,10 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PhantomKeysManager_1spend_1
        int64_t* outputs_vals = (*env)->GetLongArrayElements (env, outputs, NULL);
        for (size_t h = 0; h < outputs_constr.datalen; h++) {
                int64_t outputs_conv_7 = outputs_vals[h];
-               void* outputs_conv_7_ptr = (void*)(((uintptr_t)outputs_conv_7) & ~1);
+               void* outputs_conv_7_ptr = untag_ptr(outputs_conv_7);
                CHECK_ACCESS(outputs_conv_7_ptr);
                LDKTxOut outputs_conv_7_conv = *(LDKTxOut*)(outputs_conv_7_ptr);
-               outputs_conv_7_conv = TxOut_clone((LDKTxOut*)(((uintptr_t)outputs_conv_7) & ~1));
+               outputs_conv_7_conv = TxOut_clone((LDKTxOut*)untag_ptr(outputs_conv_7));
                outputs_constr.data[h] = outputs_conv_7_conv;
        }
        (*env)->ReleaseLongArrayElements(env, outputs, outputs_vals, 0);
@@ -29321,89 +27925,84 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PhantomKeysManager_1spend_1
        (*env)->GetByteArrayRegion(env, change_destination_script, 0, change_destination_script_ref.datalen, change_destination_script_ref.data);
        LDKCResult_TransactionNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_TransactionNoneZ), "LDKCResult_TransactionNoneZ");
        *ret_conv = PhantomKeysManager_spend_spendable_outputs(&this_arg_conv, descriptors_constr, outputs_constr, change_destination_script_ref, feerate_sat_per_1000_weight);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PhantomKeysManager_1derive_1channel_1keys(JNIEnv *env, jclass clz, int64_t this_arg, int64_t channel_value_satoshis, int8_tArray params) {
        LDKPhantomKeysManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        unsigned char params_arr[32];
        CHECK((*env)->GetArrayLength(env, params) == 32);
        (*env)->GetByteArrayRegion(env, params, 0, 32, params_arr);
        unsigned char (*params_ref)[32] = &params_arr;
        LDKInMemorySigner ret_var = PhantomKeysManager_derive_channel_keys(&this_arg_conv, channel_value_satoshis, params_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManager_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKChannelManager this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ChannelManager_free(this_obj_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChainParameters_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKChainParameters this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ChainParameters_free(this_obj_conv);
 }
 
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_ChainParameters_1get_1network(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChainParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        jclass ret_conv = LDKNetwork_to_java(env, ChainParameters_get_network(&this_ptr_conv));
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChainParameters_1set_1network(JNIEnv *env, jclass clz, int64_t this_ptr, jclass val) {
        LDKChainParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKNetwork val_conv = LDKNetwork_from_java(env, val);
        ChainParameters_set_network(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChainParameters_1get_1best_1block(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChainParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKBestBlock ret_var = ChainParameters_get_best_block(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChainParameters_1set_1best_1block(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChainParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKBestBlock val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = BestBlock_clone(&val_conv);
        ChainParameters_set_best_block(&this_ptr_conv, val_conv);
@@ -29412,183 +28011,164 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChainParameters_1set_1best_1bl
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChainParameters_1new(JNIEnv *env, jclass clz, jclass network_arg, int64_t best_block_arg) {
        LDKNetwork network_arg_conv = LDKNetwork_from_java(env, network_arg);
        LDKBestBlock best_block_arg_conv;
-       best_block_arg_conv.inner = (void*)(best_block_arg & (~1));
-       best_block_arg_conv.is_owned = (best_block_arg & 1) || (best_block_arg == 0);
+       best_block_arg_conv.inner = untag_ptr(best_block_arg);
+       best_block_arg_conv.is_owned = ptr_is_owned(best_block_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(best_block_arg_conv);
        best_block_arg_conv = BestBlock_clone(&best_block_arg_conv);
        LDKChainParameters ret_var = ChainParameters_new(network_arg_conv, best_block_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t ChainParameters_clone_ptr(LDKChainParameters *NONNULL_PTR arg) {
+static inline uint64_t ChainParameters_clone_ptr(LDKChainParameters *NONNULL_PTR arg) {
        LDKChainParameters ret_var = ChainParameters_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChainParameters_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKChainParameters arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ChainParameters_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChainParameters_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKChainParameters orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKChainParameters ret_var = ChainParameters_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CounterpartyForwardingInfo_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKCounterpartyForwardingInfo this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        CounterpartyForwardingInfo_free(this_obj_conv);
 }
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_CounterpartyForwardingInfo_1get_1fee_1base_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKCounterpartyForwardingInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = CounterpartyForwardingInfo_get_fee_base_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CounterpartyForwardingInfo_1set_1fee_1base_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKCounterpartyForwardingInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        CounterpartyForwardingInfo_set_fee_base_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_CounterpartyForwardingInfo_1get_1fee_1proportional_1millionths(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKCounterpartyForwardingInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = CounterpartyForwardingInfo_get_fee_proportional_millionths(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CounterpartyForwardingInfo_1set_1fee_1proportional_1millionths(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKCounterpartyForwardingInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        CounterpartyForwardingInfo_set_fee_proportional_millionths(&this_ptr_conv, val);
 }
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_CounterpartyForwardingInfo_1get_1cltv_1expiry_1delta(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKCounterpartyForwardingInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int16_t ret_conv = CounterpartyForwardingInfo_get_cltv_expiry_delta(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CounterpartyForwardingInfo_1set_1cltv_1expiry_1delta(JNIEnv *env, jclass clz, int64_t this_ptr, int16_t val) {
        LDKCounterpartyForwardingInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        CounterpartyForwardingInfo_set_cltv_expiry_delta(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CounterpartyForwardingInfo_1new(JNIEnv *env, jclass clz, int32_t fee_base_msat_arg, int32_t fee_proportional_millionths_arg, int16_t cltv_expiry_delta_arg) {
        LDKCounterpartyForwardingInfo ret_var = CounterpartyForwardingInfo_new(fee_base_msat_arg, fee_proportional_millionths_arg, cltv_expiry_delta_arg);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t CounterpartyForwardingInfo_clone_ptr(LDKCounterpartyForwardingInfo *NONNULL_PTR arg) {
+static inline uint64_t CounterpartyForwardingInfo_clone_ptr(LDKCounterpartyForwardingInfo *NONNULL_PTR arg) {
        LDKCounterpartyForwardingInfo ret_var = CounterpartyForwardingInfo_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CounterpartyForwardingInfo_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKCounterpartyForwardingInfo arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = CounterpartyForwardingInfo_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CounterpartyForwardingInfo_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKCounterpartyForwardingInfo orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKCounterpartyForwardingInfo ret_var = CounterpartyForwardingInfo_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKChannelCounterparty this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ChannelCounterparty_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1get_1node_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelCounterparty this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, ChannelCounterparty_get_node_id(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -29596,9 +28176,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1ge
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1set_1node_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKChannelCounterparty this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -29607,29 +28188,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1set_1node
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1get_1features(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelCounterparty this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKInitFeatures ret_var = ChannelCounterparty_get_features(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1set_1features(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelCounterparty this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKInitFeatures val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = InitFeatures_clone(&val_conv);
        ChannelCounterparty_set_features(&this_ptr_conv, val_conv);
@@ -29637,48 +28215,45 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1set_1feat
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1get_1unspendable_1punishment_1reserve(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelCounterparty this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ChannelCounterparty_get_unspendable_punishment_reserve(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1set_1unspendable_1punishment_1reserve(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelCounterparty this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelCounterparty_set_unspendable_punishment_reserve(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1get_1forwarding_1info(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelCounterparty this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCounterpartyForwardingInfo ret_var = ChannelCounterparty_get_forwarding_info(&this_ptr_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1set_1forwarding_1info(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelCounterparty this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCounterpartyForwardingInfo val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = CounterpartyForwardingInfo_clone(&val_conv);
        ChannelCounterparty_set_forwarding_info(&this_ptr_conv, val_conv);
@@ -29686,47 +28261,51 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1set_1forw
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1get_1outbound_1htlc_1minimum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelCounterparty this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = ChannelCounterparty_get_outbound_htlc_minimum_msat(&this_ptr_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1set_1outbound_1htlc_1minimum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelCounterparty this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
-       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)val) & ~1));
+       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(val));
        ChannelCounterparty_set_outbound_htlc_minimum_msat(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1get_1outbound_1htlc_1maximum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelCounterparty this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = ChannelCounterparty_get_outbound_htlc_maximum_msat(&this_ptr_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1set_1outbound_1htlc_1maximum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelCounterparty this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
-       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)val) & ~1));
+       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(val));
        ChannelCounterparty_set_outbound_htlc_maximum_msat(&this_ptr_conv, val_conv);
 }
 
@@ -29735,86 +28314,74 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1new(JN
        CHECK((*env)->GetArrayLength(env, node_id_arg) == 33);
        (*env)->GetByteArrayRegion(env, node_id_arg, 0, 33, node_id_arg_ref.compressed_form);
        LDKInitFeatures features_arg_conv;
-       features_arg_conv.inner = (void*)(features_arg & (~1));
-       features_arg_conv.is_owned = (features_arg & 1) || (features_arg == 0);
+       features_arg_conv.inner = untag_ptr(features_arg);
+       features_arg_conv.is_owned = ptr_is_owned(features_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(features_arg_conv);
        features_arg_conv = InitFeatures_clone(&features_arg_conv);
        LDKCounterpartyForwardingInfo forwarding_info_arg_conv;
-       forwarding_info_arg_conv.inner = (void*)(forwarding_info_arg & (~1));
-       forwarding_info_arg_conv.is_owned = (forwarding_info_arg & 1) || (forwarding_info_arg == 0);
+       forwarding_info_arg_conv.inner = untag_ptr(forwarding_info_arg);
+       forwarding_info_arg_conv.is_owned = ptr_is_owned(forwarding_info_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(forwarding_info_arg_conv);
        forwarding_info_arg_conv = CounterpartyForwardingInfo_clone(&forwarding_info_arg_conv);
-       void* outbound_htlc_minimum_msat_arg_ptr = (void*)(((uintptr_t)outbound_htlc_minimum_msat_arg) & ~1);
+       void* outbound_htlc_minimum_msat_arg_ptr = untag_ptr(outbound_htlc_minimum_msat_arg);
        CHECK_ACCESS(outbound_htlc_minimum_msat_arg_ptr);
        LDKCOption_u64Z outbound_htlc_minimum_msat_arg_conv = *(LDKCOption_u64Z*)(outbound_htlc_minimum_msat_arg_ptr);
-       outbound_htlc_minimum_msat_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)outbound_htlc_minimum_msat_arg) & ~1));
-       void* outbound_htlc_maximum_msat_arg_ptr = (void*)(((uintptr_t)outbound_htlc_maximum_msat_arg) & ~1);
+       outbound_htlc_minimum_msat_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(outbound_htlc_minimum_msat_arg));
+       void* outbound_htlc_maximum_msat_arg_ptr = untag_ptr(outbound_htlc_maximum_msat_arg);
        CHECK_ACCESS(outbound_htlc_maximum_msat_arg_ptr);
        LDKCOption_u64Z outbound_htlc_maximum_msat_arg_conv = *(LDKCOption_u64Z*)(outbound_htlc_maximum_msat_arg_ptr);
-       outbound_htlc_maximum_msat_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)outbound_htlc_maximum_msat_arg) & ~1));
+       outbound_htlc_maximum_msat_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(outbound_htlc_maximum_msat_arg));
        LDKChannelCounterparty ret_var = ChannelCounterparty_new(node_id_arg_ref, features_arg_conv, unspendable_punishment_reserve_arg, forwarding_info_arg_conv, outbound_htlc_minimum_msat_arg_conv, outbound_htlc_maximum_msat_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t ChannelCounterparty_clone_ptr(LDKChannelCounterparty *NONNULL_PTR arg) {
+static inline uint64_t ChannelCounterparty_clone_ptr(LDKChannelCounterparty *NONNULL_PTR arg) {
        LDKChannelCounterparty ret_var = ChannelCounterparty_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKChannelCounterparty arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ChannelCounterparty_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKChannelCounterparty orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKChannelCounterparty ret_var = ChannelCounterparty_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKChannelDetails this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ChannelDetails_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *ChannelDetails_get_channel_id(&this_ptr_conv));
        return ret_arr;
@@ -29822,9 +28389,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1ch
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -29833,29 +28401,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1channel_1
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1counterparty(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelCounterparty ret_var = ChannelDetails_get_counterparty(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1counterparty(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelCounterparty val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = ChannelCounterparty_clone(&val_conv);
        ChannelDetails_set_counterparty(&this_ptr_conv, val_conv);
@@ -29863,31 +28428,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1counterpa
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1funding_1txo(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKOutPoint ret_var = ChannelDetails_get_funding_txo(&this_ptr_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1funding_1txo(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKOutPoint val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = OutPoint_clone(&val_conv);
        ChannelDetails_set_funding_txo(&this_ptr_conv, val_conv);
@@ -29895,31 +28455,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1funding_1
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1channel_1type(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelTypeFeatures ret_var = ChannelDetails_get_channel_type(&this_ptr_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1channel_1type(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelTypeFeatures val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = ChannelTypeFeatures_clone(&val_conv);
        ChannelDetails_set_channel_type(&this_ptr_conv, val_conv);
@@ -29927,385 +28482,416 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1channel_1
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1short_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = ChannelDetails_get_short_channel_id(&this_ptr_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1short_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
-       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)val) & ~1));
+       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(val));
        ChannelDetails_set_short_channel_id(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1outbound_1scid_1alias(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = ChannelDetails_get_outbound_scid_alias(&this_ptr_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1outbound_1scid_1alias(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
-       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)val) & ~1));
+       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(val));
        ChannelDetails_set_outbound_scid_alias(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1inbound_1scid_1alias(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = ChannelDetails_get_inbound_scid_alias(&this_ptr_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1inbound_1scid_1alias(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
-       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)val) & ~1));
+       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(val));
        ChannelDetails_set_inbound_scid_alias(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1channel_1value_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ChannelDetails_get_channel_value_satoshis(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1channel_1value_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelDetails_set_channel_value_satoshis(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1unspendable_1punishment_1reserve(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = ChannelDetails_get_unspendable_punishment_reserve(&this_ptr_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1unspendable_1punishment_1reserve(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
-       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)val) & ~1));
+       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(val));
        ChannelDetails_set_unspendable_punishment_reserve(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1user_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ChannelDetails_get_user_channel_id(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1user_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelDetails_set_user_channel_id(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1balance_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ChannelDetails_get_balance_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1balance_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelDetails_set_balance_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1outbound_1capacity_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ChannelDetails_get_outbound_capacity_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1outbound_1capacity_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelDetails_set_outbound_capacity_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1next_1outbound_1htlc_1limit_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ChannelDetails_get_next_outbound_htlc_limit_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1next_1outbound_1htlc_1limit_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelDetails_set_next_outbound_htlc_limit_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1inbound_1capacity_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ChannelDetails_get_inbound_capacity_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1inbound_1capacity_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelDetails_set_inbound_capacity_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1confirmations_1required(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCOption_u32Z *ret_copy = MALLOC(sizeof(LDKCOption_u32Z), "LDKCOption_u32Z");
        *ret_copy = ChannelDetails_get_confirmations_required(&this_ptr_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1confirmations_1required(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u32Z val_conv = *(LDKCOption_u32Z*)(val_ptr);
-       val_conv = COption_u32Z_clone((LDKCOption_u32Z*)(((uintptr_t)val) & ~1));
+       val_conv = COption_u32Z_clone((LDKCOption_u32Z*)untag_ptr(val));
        ChannelDetails_set_confirmations_required(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1force_1close_1spend_1delay(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCOption_u16Z *ret_copy = MALLOC(sizeof(LDKCOption_u16Z), "LDKCOption_u16Z");
        *ret_copy = ChannelDetails_get_force_close_spend_delay(&this_ptr_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1force_1close_1spend_1delay(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u16Z val_conv = *(LDKCOption_u16Z*)(val_ptr);
-       val_conv = COption_u16Z_clone((LDKCOption_u16Z*)(((uintptr_t)val) & ~1));
+       val_conv = COption_u16Z_clone((LDKCOption_u16Z*)untag_ptr(val));
        ChannelDetails_set_force_close_spend_delay(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1is_1outbound(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        jboolean ret_conv = ChannelDetails_get_is_outbound(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1is_1outbound(JNIEnv *env, jclass clz, int64_t this_ptr, jboolean val) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelDetails_set_is_outbound(&this_ptr_conv, val);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1is_1channel_1ready(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        jboolean ret_conv = ChannelDetails_get_is_channel_ready(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1is_1channel_1ready(JNIEnv *env, jclass clz, int64_t this_ptr, jboolean val) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelDetails_set_is_channel_ready(&this_ptr_conv, val);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1is_1usable(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        jboolean ret_conv = ChannelDetails_get_is_usable(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1is_1usable(JNIEnv *env, jclass clz, int64_t this_ptr, jboolean val) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelDetails_set_is_usable(&this_ptr_conv, val);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1is_1public(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        jboolean ret_conv = ChannelDetails_get_is_public(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1is_1public(JNIEnv *env, jclass clz, int64_t this_ptr, jboolean val) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelDetails_set_is_public(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1inbound_1htlc_1minimum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = ChannelDetails_get_inbound_htlc_minimum_msat(&this_ptr_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1inbound_1htlc_1minimum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
-       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)val) & ~1));
+       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(val));
        ChannelDetails_set_inbound_htlc_minimum_msat(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1inbound_1htlc_1maximum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = ChannelDetails_get_inbound_htlc_maximum_msat(&this_ptr_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1inbound_1htlc_1maximum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
-       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)val) & ~1));
+       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(val));
        ChannelDetails_set_inbound_htlc_maximum_msat(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1config(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelConfig ret_var = ChannelDetails_get_config(&this_ptr_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1config(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelConfig val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = ChannelConfig_clone(&val_conv);
        ChannelDetails_set_config(&this_ptr_conv, val_conv);
@@ -30316,165 +28902,154 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1new(JNIEnv
        CHECK((*env)->GetArrayLength(env, channel_id_arg) == 32);
        (*env)->GetByteArrayRegion(env, channel_id_arg, 0, 32, channel_id_arg_ref.data);
        LDKChannelCounterparty counterparty_arg_conv;
-       counterparty_arg_conv.inner = (void*)(counterparty_arg & (~1));
-       counterparty_arg_conv.is_owned = (counterparty_arg & 1) || (counterparty_arg == 0);
+       counterparty_arg_conv.inner = untag_ptr(counterparty_arg);
+       counterparty_arg_conv.is_owned = ptr_is_owned(counterparty_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(counterparty_arg_conv);
        counterparty_arg_conv = ChannelCounterparty_clone(&counterparty_arg_conv);
        LDKOutPoint funding_txo_arg_conv;
-       funding_txo_arg_conv.inner = (void*)(funding_txo_arg & (~1));
-       funding_txo_arg_conv.is_owned = (funding_txo_arg & 1) || (funding_txo_arg == 0);
+       funding_txo_arg_conv.inner = untag_ptr(funding_txo_arg);
+       funding_txo_arg_conv.is_owned = ptr_is_owned(funding_txo_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(funding_txo_arg_conv);
        funding_txo_arg_conv = OutPoint_clone(&funding_txo_arg_conv);
        LDKChannelTypeFeatures channel_type_arg_conv;
-       channel_type_arg_conv.inner = (void*)(channel_type_arg & (~1));
-       channel_type_arg_conv.is_owned = (channel_type_arg & 1) || (channel_type_arg == 0);
+       channel_type_arg_conv.inner = untag_ptr(channel_type_arg);
+       channel_type_arg_conv.is_owned = ptr_is_owned(channel_type_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_type_arg_conv);
        channel_type_arg_conv = ChannelTypeFeatures_clone(&channel_type_arg_conv);
-       void* short_channel_id_arg_ptr = (void*)(((uintptr_t)short_channel_id_arg) & ~1);
+       void* short_channel_id_arg_ptr = untag_ptr(short_channel_id_arg);
        CHECK_ACCESS(short_channel_id_arg_ptr);
        LDKCOption_u64Z short_channel_id_arg_conv = *(LDKCOption_u64Z*)(short_channel_id_arg_ptr);
-       short_channel_id_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)short_channel_id_arg) & ~1));
-       void* outbound_scid_alias_arg_ptr = (void*)(((uintptr_t)outbound_scid_alias_arg) & ~1);
+       short_channel_id_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(short_channel_id_arg));
+       void* outbound_scid_alias_arg_ptr = untag_ptr(outbound_scid_alias_arg);
        CHECK_ACCESS(outbound_scid_alias_arg_ptr);
        LDKCOption_u64Z outbound_scid_alias_arg_conv = *(LDKCOption_u64Z*)(outbound_scid_alias_arg_ptr);
-       outbound_scid_alias_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)outbound_scid_alias_arg) & ~1));
-       void* inbound_scid_alias_arg_ptr = (void*)(((uintptr_t)inbound_scid_alias_arg) & ~1);
+       outbound_scid_alias_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(outbound_scid_alias_arg));
+       void* inbound_scid_alias_arg_ptr = untag_ptr(inbound_scid_alias_arg);
        CHECK_ACCESS(inbound_scid_alias_arg_ptr);
        LDKCOption_u64Z inbound_scid_alias_arg_conv = *(LDKCOption_u64Z*)(inbound_scid_alias_arg_ptr);
-       inbound_scid_alias_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)inbound_scid_alias_arg) & ~1));
-       void* unspendable_punishment_reserve_arg_ptr = (void*)(((uintptr_t)unspendable_punishment_reserve_arg) & ~1);
+       inbound_scid_alias_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(inbound_scid_alias_arg));
+       void* unspendable_punishment_reserve_arg_ptr = untag_ptr(unspendable_punishment_reserve_arg);
        CHECK_ACCESS(unspendable_punishment_reserve_arg_ptr);
        LDKCOption_u64Z unspendable_punishment_reserve_arg_conv = *(LDKCOption_u64Z*)(unspendable_punishment_reserve_arg_ptr);
-       void* confirmations_required_arg_ptr = (void*)(((uintptr_t)confirmations_required_arg) & ~1);
+       void* confirmations_required_arg_ptr = untag_ptr(confirmations_required_arg);
        CHECK_ACCESS(confirmations_required_arg_ptr);
        LDKCOption_u32Z confirmations_required_arg_conv = *(LDKCOption_u32Z*)(confirmations_required_arg_ptr);
-       confirmations_required_arg_conv = COption_u32Z_clone((LDKCOption_u32Z*)(((uintptr_t)confirmations_required_arg) & ~1));
-       void* force_close_spend_delay_arg_ptr = (void*)(((uintptr_t)force_close_spend_delay_arg) & ~1);
+       confirmations_required_arg_conv = COption_u32Z_clone((LDKCOption_u32Z*)untag_ptr(confirmations_required_arg));
+       void* force_close_spend_delay_arg_ptr = untag_ptr(force_close_spend_delay_arg);
        CHECK_ACCESS(force_close_spend_delay_arg_ptr);
        LDKCOption_u16Z force_close_spend_delay_arg_conv = *(LDKCOption_u16Z*)(force_close_spend_delay_arg_ptr);
-       force_close_spend_delay_arg_conv = COption_u16Z_clone((LDKCOption_u16Z*)(((uintptr_t)force_close_spend_delay_arg) & ~1));
-       void* inbound_htlc_minimum_msat_arg_ptr = (void*)(((uintptr_t)inbound_htlc_minimum_msat_arg) & ~1);
+       force_close_spend_delay_arg_conv = COption_u16Z_clone((LDKCOption_u16Z*)untag_ptr(force_close_spend_delay_arg));
+       void* inbound_htlc_minimum_msat_arg_ptr = untag_ptr(inbound_htlc_minimum_msat_arg);
        CHECK_ACCESS(inbound_htlc_minimum_msat_arg_ptr);
        LDKCOption_u64Z inbound_htlc_minimum_msat_arg_conv = *(LDKCOption_u64Z*)(inbound_htlc_minimum_msat_arg_ptr);
-       inbound_htlc_minimum_msat_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)inbound_htlc_minimum_msat_arg) & ~1));
-       void* inbound_htlc_maximum_msat_arg_ptr = (void*)(((uintptr_t)inbound_htlc_maximum_msat_arg) & ~1);
+       inbound_htlc_minimum_msat_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(inbound_htlc_minimum_msat_arg));
+       void* inbound_htlc_maximum_msat_arg_ptr = untag_ptr(inbound_htlc_maximum_msat_arg);
        CHECK_ACCESS(inbound_htlc_maximum_msat_arg_ptr);
        LDKCOption_u64Z inbound_htlc_maximum_msat_arg_conv = *(LDKCOption_u64Z*)(inbound_htlc_maximum_msat_arg_ptr);
-       inbound_htlc_maximum_msat_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)inbound_htlc_maximum_msat_arg) & ~1));
+       inbound_htlc_maximum_msat_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(inbound_htlc_maximum_msat_arg));
        LDKChannelConfig config_arg_conv;
-       config_arg_conv.inner = (void*)(config_arg & (~1));
-       config_arg_conv.is_owned = (config_arg & 1) || (config_arg == 0);
+       config_arg_conv.inner = untag_ptr(config_arg);
+       config_arg_conv.is_owned = ptr_is_owned(config_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(config_arg_conv);
        config_arg_conv = ChannelConfig_clone(&config_arg_conv);
        LDKChannelDetails ret_var = ChannelDetails_new(channel_id_arg_ref, counterparty_arg_conv, funding_txo_arg_conv, channel_type_arg_conv, short_channel_id_arg_conv, outbound_scid_alias_arg_conv, inbound_scid_alias_arg_conv, channel_value_satoshis_arg, unspendable_punishment_reserve_arg_conv, user_channel_id_arg, balance_msat_arg, outbound_capacity_msat_arg, next_outbound_htlc_limit_msat_arg, inbound_capacity_msat_arg, confirmations_required_arg_conv, force_close_spend_delay_arg_conv, is_outbound_arg, is_channel_ready_arg, is_usable_arg, is_public_arg, inbound_htlc_minimum_msat_arg_conv, inbound_htlc_maximum_msat_arg_conv, config_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t ChannelDetails_clone_ptr(LDKChannelDetails *NONNULL_PTR arg) {
+static inline uint64_t ChannelDetails_clone_ptr(LDKChannelDetails *NONNULL_PTR arg) {
        LDKChannelDetails ret_var = ChannelDetails_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKChannelDetails arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ChannelDetails_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKChannelDetails orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKChannelDetails ret_var = ChannelDetails_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1inbound_1payment_1scid(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelDetails this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = ChannelDetails_get_inbound_payment_scid(&this_arg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1outbound_1payment_1scid(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelDetails this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = ChannelDetails_get_outbound_payment_scid(&this_arg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PaymentSendFailure_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKPaymentSendFailure this_ptr_conv = *(LDKPaymentSendFailure*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        PaymentSendFailure_free(this_ptr_conv);
 }
 
-static inline uintptr_t PaymentSendFailure_clone_ptr(LDKPaymentSendFailure *NONNULL_PTR arg) {
+static inline uint64_t PaymentSendFailure_clone_ptr(LDKPaymentSendFailure *NONNULL_PTR arg) {
        LDKPaymentSendFailure *ret_copy = MALLOC(sizeof(LDKPaymentSendFailure), "LDKPaymentSendFailure");
        *ret_copy = PaymentSendFailure_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentSendFailure_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKPaymentSendFailure* arg_conv = (LDKPaymentSendFailure*)arg;
+       LDKPaymentSendFailure* arg_conv = (LDKPaymentSendFailure*)untag_ptr(arg);
        int64_t ret_conv = PaymentSendFailure_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentSendFailure_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKPaymentSendFailure* orig_conv = (LDKPaymentSendFailure*)orig;
+       LDKPaymentSendFailure* orig_conv = (LDKPaymentSendFailure*)untag_ptr(orig);
        LDKPaymentSendFailure *ret_copy = MALLOC(sizeof(LDKPaymentSendFailure), "LDKPaymentSendFailure");
        *ret_copy = PaymentSendFailure_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentSendFailure_1parameter_1error(JNIEnv *env, jclass clz, int64_t a) {
-       void* a_ptr = (void*)(((uintptr_t)a) & ~1);
+       void* a_ptr = untag_ptr(a);
        CHECK_ACCESS(a_ptr);
        LDKAPIError a_conv = *(LDKAPIError*)(a_ptr);
-       a_conv = APIError_clone((LDKAPIError*)(((uintptr_t)a) & ~1));
+       a_conv = APIError_clone((LDKAPIError*)untag_ptr(a));
        LDKPaymentSendFailure *ret_copy = MALLOC(sizeof(LDKPaymentSendFailure), "LDKPaymentSendFailure");
        *ret_copy = PaymentSendFailure_parameter_error(a_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -30488,16 +29063,16 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentSendFailure_1path_1p
        int64_t* a_vals = (*env)->GetLongArrayElements (env, a, NULL);
        for (size_t w = 0; w < a_constr.datalen; w++) {
                int64_t a_conv_22 = a_vals[w];
-               void* a_conv_22_ptr = (void*)(((uintptr_t)a_conv_22) & ~1);
+               void* a_conv_22_ptr = untag_ptr(a_conv_22);
                CHECK_ACCESS(a_conv_22_ptr);
                LDKCResult_NoneAPIErrorZ a_conv_22_conv = *(LDKCResult_NoneAPIErrorZ*)(a_conv_22_ptr);
-               a_conv_22_conv = CResult_NoneAPIErrorZ_clone((LDKCResult_NoneAPIErrorZ*)(((uintptr_t)a_conv_22) & ~1));
+               a_conv_22_conv = CResult_NoneAPIErrorZ_clone((LDKCResult_NoneAPIErrorZ*)untag_ptr(a_conv_22));
                a_constr.data[w] = a_conv_22_conv;
        }
        (*env)->ReleaseLongArrayElements(env, a, a_vals, 0);
        LDKPaymentSendFailure *ret_copy = MALLOC(sizeof(LDKPaymentSendFailure), "LDKPaymentSendFailure");
        *ret_copy = PaymentSendFailure_path_parameter_error(a_constr);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -30511,16 +29086,16 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentSendFailure_1all_1fa
        int64_t* a_vals = (*env)->GetLongArrayElements (env, a, NULL);
        for (size_t k = 0; k < a_constr.datalen; k++) {
                int64_t a_conv_10 = a_vals[k];
-               void* a_conv_10_ptr = (void*)(((uintptr_t)a_conv_10) & ~1);
+               void* a_conv_10_ptr = untag_ptr(a_conv_10);
                CHECK_ACCESS(a_conv_10_ptr);
                LDKAPIError a_conv_10_conv = *(LDKAPIError*)(a_conv_10_ptr);
-               a_conv_10_conv = APIError_clone((LDKAPIError*)(((uintptr_t)a_conv_10) & ~1));
+               a_conv_10_conv = APIError_clone((LDKAPIError*)untag_ptr(a_conv_10));
                a_constr.data[k] = a_conv_10_conv;
        }
        (*env)->ReleaseLongArrayElements(env, a, a_vals, 0);
        LDKPaymentSendFailure *ret_copy = MALLOC(sizeof(LDKPaymentSendFailure), "LDKPaymentSendFailure");
        *ret_copy = PaymentSendFailure_all_failed_retry_safe(a_constr);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -30534,15 +29109,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentSendFailure_1partial
        int64_t* results_vals = (*env)->GetLongArrayElements (env, results, NULL);
        for (size_t w = 0; w < results_constr.datalen; w++) {
                int64_t results_conv_22 = results_vals[w];
-               void* results_conv_22_ptr = (void*)(((uintptr_t)results_conv_22) & ~1);
+               void* results_conv_22_ptr = untag_ptr(results_conv_22);
                CHECK_ACCESS(results_conv_22_ptr);
                LDKCResult_NoneAPIErrorZ results_conv_22_conv = *(LDKCResult_NoneAPIErrorZ*)(results_conv_22_ptr);
                results_constr.data[w] = results_conv_22_conv;
        }
        (*env)->ReleaseLongArrayElements(env, results, results_vals, 0);
        LDKRouteParameters failed_paths_retry_conv;
-       failed_paths_retry_conv.inner = (void*)(failed_paths_retry & (~1));
-       failed_paths_retry_conv.is_owned = (failed_paths_retry & 1) || (failed_paths_retry == 0);
+       failed_paths_retry_conv.inner = untag_ptr(failed_paths_retry);
+       failed_paths_retry_conv.is_owned = ptr_is_owned(failed_paths_retry);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(failed_paths_retry_conv);
        failed_paths_retry_conv = RouteParameters_clone(&failed_paths_retry_conv);
        LDKThirtyTwoBytes payment_id_ref;
@@ -30550,23 +29125,24 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentSendFailure_1partial
        (*env)->GetByteArrayRegion(env, payment_id, 0, 32, payment_id_ref.data);
        LDKPaymentSendFailure *ret_copy = MALLOC(sizeof(LDKPaymentSendFailure), "LDKPaymentSendFailure");
        *ret_copy = PaymentSendFailure_partial_failure(results_constr, failed_paths_retry_conv, payment_id_ref);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PhantomRouteHints_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKPhantomRouteHints this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        PhantomRouteHints_free(this_obj_conv);
 }
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_PhantomRouteHints_1get_1channels(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKPhantomRouteHints this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_ChannelDetailsZ ret_var = PhantomRouteHints_get_channels(&this_ptr_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -30574,13 +29150,8 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_PhantomRouteHints_1get
        for (size_t q = 0; q < ret_var.datalen; q++) {
                LDKChannelDetails ret_conv_16_var = ret_var.data[q];
                int64_t ret_conv_16_ref = 0;
-               CHECK((((uintptr_t)ret_conv_16_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_conv_16_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_16_var);
-               ret_conv_16_ref = (uintptr_t)ret_conv_16_var.inner;
-               if (ret_conv_16_var.is_owned) {
-                       ret_conv_16_ref |= 1;
-               }
+               ret_conv_16_ref = tag_ptr(ret_conv_16_var.inner, ret_conv_16_var.is_owned);
                ret_arr_ptr[q] = ret_conv_16_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
@@ -30590,9 +29161,10 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_PhantomRouteHints_1get
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PhantomRouteHints_1set_1channels(JNIEnv *env, jclass clz, int64_t this_ptr, int64_tArray val) {
        LDKPhantomRouteHints this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_ChannelDetailsZ val_constr;
        val_constr.datalen = (*env)->GetArrayLength(env, val);
        if (val_constr.datalen > 0)
@@ -30603,8 +29175,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PhantomRouteHints_1set_1channe
        for (size_t q = 0; q < val_constr.datalen; q++) {
                int64_t val_conv_16 = val_vals[q];
                LDKChannelDetails val_conv_16_conv;
-               val_conv_16_conv.inner = (void*)(val_conv_16 & (~1));
-               val_conv_16_conv.is_owned = (val_conv_16 & 1) || (val_conv_16 == 0);
+               val_conv_16_conv.inner = untag_ptr(val_conv_16);
+               val_conv_16_conv.is_owned = ptr_is_owned(val_conv_16);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv_16_conv);
                val_conv_16_conv = ChannelDetails_clone(&val_conv_16_conv);
                val_constr.data[q] = val_conv_16_conv;
@@ -30615,26 +29187,29 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PhantomRouteHints_1set_1channe
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PhantomRouteHints_1get_1phantom_1scid(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKPhantomRouteHints this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = PhantomRouteHints_get_phantom_scid(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PhantomRouteHints_1set_1phantom_1scid(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKPhantomRouteHints this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        PhantomRouteHints_set_phantom_scid(&this_ptr_conv, val);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_PhantomRouteHints_1get_1real_1node_1pubkey(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKPhantomRouteHints this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, PhantomRouteHints_get_real_node_pubkey(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -30642,9 +29217,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_PhantomRouteHints_1get_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PhantomRouteHints_1set_1real_1node_1pubkey(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKPhantomRouteHints this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -30662,8 +29238,8 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PhantomRouteHints_1new(JNIE
        for (size_t q = 0; q < channels_arg_constr.datalen; q++) {
                int64_t channels_arg_conv_16 = channels_arg_vals[q];
                LDKChannelDetails channels_arg_conv_16_conv;
-               channels_arg_conv_16_conv.inner = (void*)(channels_arg_conv_16 & (~1));
-               channels_arg_conv_16_conv.is_owned = (channels_arg_conv_16 & 1) || (channels_arg_conv_16 == 0);
+               channels_arg_conv_16_conv.inner = untag_ptr(channels_arg_conv_16);
+               channels_arg_conv_16_conv.is_owned = ptr_is_owned(channels_arg_conv_16);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(channels_arg_conv_16_conv);
                channels_arg_conv_16_conv = ChannelDetails_clone(&channels_arg_conv_16_conv);
                channels_arg_constr.data[q] = channels_arg_conv_16_conv;
@@ -30674,84 +29250,71 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PhantomRouteHints_1new(JNIE
        (*env)->GetByteArrayRegion(env, real_node_pubkey_arg, 0, 33, real_node_pubkey_arg_ref.compressed_form);
        LDKPhantomRouteHints ret_var = PhantomRouteHints_new(channels_arg_constr, phantom_scid_arg, real_node_pubkey_arg_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t PhantomRouteHints_clone_ptr(LDKPhantomRouteHints *NONNULL_PTR arg) {
+static inline uint64_t PhantomRouteHints_clone_ptr(LDKPhantomRouteHints *NONNULL_PTR arg) {
        LDKPhantomRouteHints ret_var = PhantomRouteHints_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PhantomRouteHints_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKPhantomRouteHints arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = PhantomRouteHints_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PhantomRouteHints_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKPhantomRouteHints orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKPhantomRouteHints ret_var = PhantomRouteHints_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1new(JNIEnv *env, jclass clz, int64_t fee_est, int64_t chain_monitor, int64_t tx_broadcaster, int64_t logger, int64_t keys_manager, int64_t config, int64_t params) {
-       void* fee_est_ptr = (void*)(((uintptr_t)fee_est) & ~1);
+       void* fee_est_ptr = untag_ptr(fee_est);
        CHECK_ACCESS(fee_est_ptr);
        LDKFeeEstimator fee_est_conv = *(LDKFeeEstimator*)(fee_est_ptr);
        if (fee_est_conv.free == LDKFeeEstimator_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKFeeEstimator_JCalls_cloned(&fee_est_conv);
        }
-       void* chain_monitor_ptr = (void*)(((uintptr_t)chain_monitor) & ~1);
+       void* chain_monitor_ptr = untag_ptr(chain_monitor);
        CHECK_ACCESS(chain_monitor_ptr);
        LDKWatch chain_monitor_conv = *(LDKWatch*)(chain_monitor_ptr);
        if (chain_monitor_conv.free == LDKWatch_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKWatch_JCalls_cloned(&chain_monitor_conv);
        }
-       void* tx_broadcaster_ptr = (void*)(((uintptr_t)tx_broadcaster) & ~1);
+       void* tx_broadcaster_ptr = untag_ptr(tx_broadcaster);
        CHECK_ACCESS(tx_broadcaster_ptr);
        LDKBroadcasterInterface tx_broadcaster_conv = *(LDKBroadcasterInterface*)(tx_broadcaster_ptr);
        if (tx_broadcaster_conv.free == LDKBroadcasterInterface_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKBroadcasterInterface_JCalls_cloned(&tx_broadcaster_conv);
        }
-       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
+       void* logger_ptr = untag_ptr(logger);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
        if (logger_conv.free == LDKLogger_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKLogger_JCalls_cloned(&logger_conv);
        }
-       void* keys_manager_ptr = (void*)(((uintptr_t)keys_manager) & ~1);
+       void* keys_manager_ptr = untag_ptr(keys_manager);
        CHECK_ACCESS(keys_manager_ptr);
        LDKKeysInterface keys_manager_conv = *(LDKKeysInterface*)(keys_manager_ptr);
        if (keys_manager_conv.free == LDKKeysInterface_JCalls_free) {
@@ -30759,67 +29322,60 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1new(JNIEnv
                LDKKeysInterface_JCalls_cloned(&keys_manager_conv);
        }
        LDKUserConfig config_conv;
-       config_conv.inner = (void*)(config & (~1));
-       config_conv.is_owned = (config & 1) || (config == 0);
+       config_conv.inner = untag_ptr(config);
+       config_conv.is_owned = ptr_is_owned(config);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(config_conv);
        config_conv = UserConfig_clone(&config_conv);
        LDKChainParameters params_conv;
-       params_conv.inner = (void*)(params & (~1));
-       params_conv.is_owned = (params & 1) || (params == 0);
+       params_conv.inner = untag_ptr(params);
+       params_conv.is_owned = ptr_is_owned(params);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(params_conv);
        params_conv = ChainParameters_clone(&params_conv);
        LDKChannelManager ret_var = ChannelManager_new(fee_est_conv, chain_monitor_conv, tx_broadcaster_conv, logger_conv, keys_manager_conv, config_conv, params_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1get_1current_1default_1configuration(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKUserConfig ret_var = ChannelManager_get_current_default_configuration(&this_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1create_1channel(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_network_key, int64_t channel_value_satoshis, int64_t push_msat, int64_t user_channel_id, int64_t override_config) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKPublicKey their_network_key_ref;
        CHECK((*env)->GetArrayLength(env, their_network_key) == 33);
        (*env)->GetByteArrayRegion(env, their_network_key, 0, 33, their_network_key_ref.compressed_form);
        LDKUserConfig override_config_conv;
-       override_config_conv.inner = (void*)(override_config & (~1));
-       override_config_conv.is_owned = (override_config & 1) || (override_config == 0);
+       override_config_conv.inner = untag_ptr(override_config);
+       override_config_conv.is_owned = ptr_is_owned(override_config);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(override_config_conv);
        override_config_conv = UserConfig_clone(&override_config_conv);
        LDKCResult__u832APIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult__u832APIErrorZ), "LDKCResult__u832APIErrorZ");
        *ret_conv = ChannelManager_create_channel(&this_arg_conv, their_network_key_ref, channel_value_satoshis, push_msat, user_channel_id, override_config_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelManager_1list_1channels(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCVec_ChannelDetailsZ ret_var = ChannelManager_list_channels(&this_arg_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -30827,13 +29383,8 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelManager_1list_1
        for (size_t q = 0; q < ret_var.datalen; q++) {
                LDKChannelDetails ret_conv_16_var = ret_var.data[q];
                int64_t ret_conv_16_ref = 0;
-               CHECK((((uintptr_t)ret_conv_16_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_conv_16_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_16_var);
-               ret_conv_16_ref = (uintptr_t)ret_conv_16_var.inner;
-               if (ret_conv_16_var.is_owned) {
-                       ret_conv_16_ref |= 1;
-               }
+               ret_conv_16_ref = tag_ptr(ret_conv_16_var.inner, ret_conv_16_var.is_owned);
                ret_arr_ptr[q] = ret_conv_16_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
@@ -30843,9 +29394,10 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelManager_1list_1
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelManager_1list_1usable_1channels(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCVec_ChannelDetailsZ ret_var = ChannelManager_list_usable_channels(&this_arg_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -30853,13 +29405,8 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelManager_1list_1
        for (size_t q = 0; q < ret_var.datalen; q++) {
                LDKChannelDetails ret_conv_16_var = ret_var.data[q];
                int64_t ret_conv_16_ref = 0;
-               CHECK((((uintptr_t)ret_conv_16_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_conv_16_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_16_var);
-               ret_conv_16_ref = (uintptr_t)ret_conv_16_var.inner;
-               if (ret_conv_16_var.is_owned) {
-                       ret_conv_16_ref |= 1;
-               }
+               ret_conv_16_ref = tag_ptr(ret_conv_16_var.inner, ret_conv_16_var.is_owned);
                ret_arr_ptr[q] = ret_conv_16_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
@@ -30869,9 +29416,10 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelManager_1list_1
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1close_1channel(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray channel_id, int8_tArray counterparty_node_id) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        unsigned char channel_id_arr[32];
        CHECK((*env)->GetArrayLength(env, channel_id) == 32);
        (*env)->GetByteArrayRegion(env, channel_id, 0, 32, channel_id_arr);
@@ -30881,14 +29429,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1close_1chan
        (*env)->GetByteArrayRegion(env, counterparty_node_id, 0, 33, counterparty_node_id_ref.compressed_form);
        LDKCResult_NoneAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
        *ret_conv = ChannelManager_close_channel(&this_arg_conv, channel_id_ref, counterparty_node_id_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1close_1channel_1with_1target_1feerate(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray channel_id, int8_tArray counterparty_node_id, int32_t target_feerate_sats_per_1000_weight) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        unsigned char channel_id_arr[32];
        CHECK((*env)->GetArrayLength(env, channel_id) == 32);
        (*env)->GetByteArrayRegion(env, channel_id, 0, 32, channel_id_arr);
@@ -30898,14 +29447,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1close_1chan
        (*env)->GetByteArrayRegion(env, counterparty_node_id, 0, 33, counterparty_node_id_ref.compressed_form);
        LDKCResult_NoneAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
        *ret_conv = ChannelManager_close_channel_with_target_feerate(&this_arg_conv, channel_id_ref, counterparty_node_id_ref, target_feerate_sats_per_1000_weight);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1force_1close_1broadcasting_1latest_1txn(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray channel_id, int8_tArray counterparty_node_id) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        unsigned char channel_id_arr[32];
        CHECK((*env)->GetArrayLength(env, channel_id) == 32);
        (*env)->GetByteArrayRegion(env, channel_id, 0, 32, channel_id_arr);
@@ -30915,14 +29465,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1force_1clos
        (*env)->GetByteArrayRegion(env, counterparty_node_id, 0, 33, counterparty_node_id_ref.compressed_form);
        LDKCResult_NoneAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
        *ret_conv = ChannelManager_force_close_broadcasting_latest_txn(&this_arg_conv, channel_id_ref, counterparty_node_id_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1force_1close_1without_1broadcasting_1txn(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray channel_id, int8_tArray counterparty_node_id) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        unsigned char channel_id_arr[32];
        CHECK((*env)->GetArrayLength(env, channel_id) == 32);
        (*env)->GetByteArrayRegion(env, channel_id, 0, 32, channel_id_arr);
@@ -30932,34 +29483,38 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1force_1clos
        (*env)->GetByteArrayRegion(env, counterparty_node_id, 0, 33, counterparty_node_id_ref.compressed_form);
        LDKCResult_NoneAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
        *ret_conv = ChannelManager_force_close_without_broadcasting_txn(&this_arg_conv, channel_id_ref, counterparty_node_id_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManager_1force_1close_1all_1channels_1broadcasting_1latest_1txn(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        ChannelManager_force_close_all_channels_broadcasting_latest_txn(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManager_1force_1close_1all_1channels_1without_1broadcasting_1txn(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        ChannelManager_force_close_all_channels_without_broadcasting_txn(&this_arg_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1send_1payment(JNIEnv *env, jclass clz, int64_t this_arg, int64_t route, int8_tArray payment_hash, int8_tArray payment_secret) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKRoute route_conv;
-       route_conv.inner = (void*)(route & (~1));
-       route_conv.is_owned = false;
+       route_conv.inner = untag_ptr(route);
+       route_conv.is_owned = ptr_is_owned(route);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(route_conv);
+       route_conv.is_owned = false;
        LDKThirtyTwoBytes payment_hash_ref;
        CHECK((*env)->GetArrayLength(env, payment_hash) == 32);
        (*env)->GetByteArrayRegion(env, payment_hash, 0, 32, payment_hash_ref.data);
@@ -30968,31 +29523,34 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1send_1payme
        (*env)->GetByteArrayRegion(env, payment_secret, 0, 32, payment_secret_ref.data);
        LDKCResult_PaymentIdPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentIdPaymentSendFailureZ), "LDKCResult_PaymentIdPaymentSendFailureZ");
        *ret_conv = ChannelManager_send_payment(&this_arg_conv, &route_conv, payment_hash_ref, payment_secret_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1retry_1payment(JNIEnv *env, jclass clz, int64_t this_arg, int64_t route, int8_tArray payment_id) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKRoute route_conv;
-       route_conv.inner = (void*)(route & (~1));
-       route_conv.is_owned = false;
+       route_conv.inner = untag_ptr(route);
+       route_conv.is_owned = ptr_is_owned(route);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(route_conv);
+       route_conv.is_owned = false;
        LDKThirtyTwoBytes payment_id_ref;
        CHECK((*env)->GetArrayLength(env, payment_id) == 32);
        (*env)->GetByteArrayRegion(env, payment_id, 0, 32, payment_id_ref.data);
        LDKCResult_NonePaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePaymentSendFailureZ), "LDKCResult_NonePaymentSendFailureZ");
        *ret_conv = ChannelManager_retry_payment(&this_arg_conv, &route_conv, payment_id_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManager_1abandon_1payment(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray payment_id) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKThirtyTwoBytes payment_id_ref;
        CHECK((*env)->GetArrayLength(env, payment_id) == 32);
        (*env)->GetByteArrayRegion(env, payment_id, 0, 32, payment_id_ref.data);
@@ -31001,26 +29559,29 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManager_1abandon_1payme
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1send_1spontaneous_1payment(JNIEnv *env, jclass clz, int64_t this_arg, int64_t route, int8_tArray payment_preimage) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKRoute route_conv;
-       route_conv.inner = (void*)(route & (~1));
-       route_conv.is_owned = false;
+       route_conv.inner = untag_ptr(route);
+       route_conv.is_owned = ptr_is_owned(route);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(route_conv);
+       route_conv.is_owned = false;
        LDKThirtyTwoBytes payment_preimage_ref;
        CHECK((*env)->GetArrayLength(env, payment_preimage) == 32);
        (*env)->GetByteArrayRegion(env, payment_preimage, 0, 32, payment_preimage_ref.data);
        LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ), "LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ");
        *ret_conv = ChannelManager_send_spontaneous_payment(&this_arg_conv, &route_conv, payment_preimage_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1send_1probe(JNIEnv *env, jclass clz, int64_t this_arg, int64_tArray hops) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCVec_RouteHopZ hops_constr;
        hops_constr.datalen = (*env)->GetArrayLength(env, hops);
        if (hops_constr.datalen > 0)
@@ -31031,8 +29592,8 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1send_1probe
        for (size_t k = 0; k < hops_constr.datalen; k++) {
                int64_t hops_conv_10 = hops_vals[k];
                LDKRouteHop hops_conv_10_conv;
-               hops_conv_10_conv.inner = (void*)(hops_conv_10 & (~1));
-               hops_conv_10_conv.is_owned = (hops_conv_10 & 1) || (hops_conv_10 == 0);
+               hops_conv_10_conv.inner = untag_ptr(hops_conv_10);
+               hops_conv_10_conv.is_owned = ptr_is_owned(hops_conv_10);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(hops_conv_10_conv);
                hops_conv_10_conv = RouteHop_clone(&hops_conv_10_conv);
                hops_constr.data[k] = hops_conv_10_conv;
@@ -31040,14 +29601,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1send_1probe
        (*env)->ReleaseLongArrayElements(env, hops, hops_vals, 0);
        LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ), "LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ");
        *ret_conv = ChannelManager_send_probe(&this_arg_conv, hops_constr);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1funding_1transaction_1generated(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray temporary_channel_id, int8_tArray counterparty_node_id, int8_tArray funding_transaction) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        unsigned char temporary_channel_id_arr[32];
        CHECK((*env)->GetArrayLength(env, temporary_channel_id) == 32);
        (*env)->GetByteArrayRegion(env, temporary_channel_id, 0, 32, temporary_channel_id_arr);
@@ -31062,14 +29624,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1funding_1tr
        funding_transaction_ref.data_is_owned = true;
        LDKCResult_NoneAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
        *ret_conv = ChannelManager_funding_transaction_generated(&this_arg_conv, temporary_channel_id_ref, counterparty_node_id_ref, funding_transaction_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManager_1broadcast_1node_1announcement(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray rgb, int8_tArray alias, int64_tArray addresses) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKThreeBytes rgb_ref;
        CHECK((*env)->GetArrayLength(env, rgb) == 3);
        (*env)->GetByteArrayRegion(env, rgb, 0, 3, rgb_ref.data);
@@ -31085,7 +29648,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManager_1broadcast_1nod
        int64_t* addresses_vals = (*env)->GetLongArrayElements (env, addresses, NULL);
        for (size_t m = 0; m < addresses_constr.datalen; m++) {
                int64_t addresses_conv_12 = addresses_vals[m];
-               void* addresses_conv_12_ptr = (void*)(((uintptr_t)addresses_conv_12) & ~1);
+               void* addresses_conv_12_ptr = untag_ptr(addresses_conv_12);
                CHECK_ACCESS(addresses_conv_12_ptr);
                LDKNetAddress addresses_conv_12_conv = *(LDKNetAddress*)(addresses_conv_12_ptr);
                addresses_constr.data[m] = addresses_conv_12_conv;
@@ -31096,9 +29659,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManager_1broadcast_1nod
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1update_1channel_1config(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray counterparty_node_id, jobjectArray channel_ids, int64_t config) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKPublicKey counterparty_node_id_ref;
        CHECK((*env)->GetArrayLength(env, counterparty_node_id) == 33);
        (*env)->GetByteArrayRegion(env, counterparty_node_id, 0, 33, counterparty_node_id_ref.compressed_form);
@@ -31116,35 +29680,39 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1update_1cha
                channel_ids_constr.data[i] = channel_ids_conv_8_ref;
        }
        LDKChannelConfig config_conv;
-       config_conv.inner = (void*)(config & (~1));
-       config_conv.is_owned = false;
+       config_conv.inner = untag_ptr(config);
+       config_conv.is_owned = ptr_is_owned(config);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(config_conv);
+       config_conv.is_owned = false;
        LDKCResult_NoneAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
        *ret_conv = ChannelManager_update_channel_config(&this_arg_conv, counterparty_node_id_ref, channel_ids_constr, &config_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManager_1process_1pending_1htlc_1forwards(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        ChannelManager_process_pending_htlc_forwards(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManager_1timer_1tick_1occurred(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        ChannelManager_timer_tick_occurred(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManager_1fail_1htlc_1backwards(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray payment_hash) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        unsigned char payment_hash_arr[32];
        CHECK((*env)->GetArrayLength(env, payment_hash) == 32);
        (*env)->GetByteArrayRegion(env, payment_hash, 0, 32, payment_hash_arr);
@@ -31154,9 +29722,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManager_1fail_1htlc_1ba
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManager_1claim_1funds(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray payment_preimage) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKThirtyTwoBytes payment_preimage_ref;
        CHECK((*env)->GetArrayLength(env, payment_preimage) == 32);
        (*env)->GetByteArrayRegion(env, payment_preimage, 0, 32, payment_preimage_ref.data);
@@ -31165,9 +29734,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManager_1claim_1funds(J
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelManager_1get_1our_1node_1id(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, ChannelManager_get_our_node_id(&this_arg_conv).compressed_form);
        return ret_arr;
@@ -31175,9 +29745,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelManager_1get_1ou
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1accept_1inbound_1channel(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray temporary_channel_id, int8_tArray counterparty_node_id, int64_t user_channel_id) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        unsigned char temporary_channel_id_arr[32];
        CHECK((*env)->GetArrayLength(env, temporary_channel_id) == 32);
        (*env)->GetByteArrayRegion(env, temporary_channel_id, 0, 32, temporary_channel_id_arr);
@@ -31187,14 +29758,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1accept_1inb
        (*env)->GetByteArrayRegion(env, counterparty_node_id, 0, 33, counterparty_node_id_ref.compressed_form);
        LDKCResult_NoneAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
        *ret_conv = ChannelManager_accept_inbound_channel(&this_arg_conv, temporary_channel_id_ref, counterparty_node_id_ref, user_channel_id);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1accept_1inbound_1channel_1from_1trusted_1peer_10conf(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray temporary_channel_id, int8_tArray counterparty_node_id, int64_t user_channel_id) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        unsigned char temporary_channel_id_arr[32];
        CHECK((*env)->GetArrayLength(env, temporary_channel_id) == 32);
        (*env)->GetByteArrayRegion(env, temporary_channel_id, 0, 32, temporary_channel_id_arr);
@@ -31204,76 +29776,81 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1accept_1inb
        (*env)->GetByteArrayRegion(env, counterparty_node_id, 0, 33, counterparty_node_id_ref.compressed_form);
        LDKCResult_NoneAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
        *ret_conv = ChannelManager_accept_inbound_channel_from_trusted_peer_0conf(&this_arg_conv, temporary_channel_id_ref, counterparty_node_id_ref, user_channel_id);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1create_1inbound_1payment(JNIEnv *env, jclass clz, int64_t this_arg, int64_t min_value_msat, int32_t invoice_expiry_delta_secs) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
-       void* min_value_msat_ptr = (void*)(((uintptr_t)min_value_msat) & ~1);
+       this_arg_conv.is_owned = false;
+       void* min_value_msat_ptr = untag_ptr(min_value_msat);
        CHECK_ACCESS(min_value_msat_ptr);
        LDKCOption_u64Z min_value_msat_conv = *(LDKCOption_u64Z*)(min_value_msat_ptr);
-       min_value_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)min_value_msat) & ~1));
+       min_value_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(min_value_msat));
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ), "LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ");
        *ret_conv = ChannelManager_create_inbound_payment(&this_arg_conv, min_value_msat_conv, invoice_expiry_delta_secs);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1create_1inbound_1payment_1legacy(JNIEnv *env, jclass clz, int64_t this_arg, int64_t min_value_msat, int32_t invoice_expiry_delta_secs) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
-       void* min_value_msat_ptr = (void*)(((uintptr_t)min_value_msat) & ~1);
+       this_arg_conv.is_owned = false;
+       void* min_value_msat_ptr = untag_ptr(min_value_msat);
        CHECK_ACCESS(min_value_msat_ptr);
        LDKCOption_u64Z min_value_msat_conv = *(LDKCOption_u64Z*)(min_value_msat_ptr);
-       min_value_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)min_value_msat) & ~1));
+       min_value_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(min_value_msat));
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ), "LDKCResult_C2Tuple_PaymentHashPaymentSecretZAPIErrorZ");
        *ret_conv = ChannelManager_create_inbound_payment_legacy(&this_arg_conv, min_value_msat_conv, invoice_expiry_delta_secs);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1create_1inbound_1payment_1for_1hash(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray payment_hash, int64_t min_value_msat, int32_t invoice_expiry_delta_secs) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKThirtyTwoBytes payment_hash_ref;
        CHECK((*env)->GetArrayLength(env, payment_hash) == 32);
        (*env)->GetByteArrayRegion(env, payment_hash, 0, 32, payment_hash_ref.data);
-       void* min_value_msat_ptr = (void*)(((uintptr_t)min_value_msat) & ~1);
+       void* min_value_msat_ptr = untag_ptr(min_value_msat);
        CHECK_ACCESS(min_value_msat_ptr);
        LDKCOption_u64Z min_value_msat_conv = *(LDKCOption_u64Z*)(min_value_msat_ptr);
-       min_value_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)min_value_msat) & ~1));
+       min_value_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(min_value_msat));
        LDKCResult_PaymentSecretNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentSecretNoneZ), "LDKCResult_PaymentSecretNoneZ");
        *ret_conv = ChannelManager_create_inbound_payment_for_hash(&this_arg_conv, payment_hash_ref, min_value_msat_conv, invoice_expiry_delta_secs);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1create_1inbound_1payment_1for_1hash_1legacy(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray payment_hash, int64_t min_value_msat, int32_t invoice_expiry_delta_secs) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKThirtyTwoBytes payment_hash_ref;
        CHECK((*env)->GetArrayLength(env, payment_hash) == 32);
        (*env)->GetByteArrayRegion(env, payment_hash, 0, 32, payment_hash_ref.data);
-       void* min_value_msat_ptr = (void*)(((uintptr_t)min_value_msat) & ~1);
+       void* min_value_msat_ptr = untag_ptr(min_value_msat);
        CHECK_ACCESS(min_value_msat_ptr);
        LDKCOption_u64Z min_value_msat_conv = *(LDKCOption_u64Z*)(min_value_msat_ptr);
-       min_value_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)min_value_msat) & ~1));
+       min_value_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(min_value_msat));
        LDKCResult_PaymentSecretAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentSecretAPIErrorZ), "LDKCResult_PaymentSecretAPIErrorZ");
        *ret_conv = ChannelManager_create_inbound_payment_for_hash_legacy(&this_arg_conv, payment_hash_ref, min_value_msat_conv, invoice_expiry_delta_secs);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1get_1payment_1preimage(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray payment_hash, int8_tArray payment_secret) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKThirtyTwoBytes payment_hash_ref;
        CHECK((*env)->GetArrayLength(env, payment_hash) == 32);
        (*env)->GetByteArrayRegion(env, payment_hash, 0, 32, payment_hash_ref.data);
@@ -31282,124 +29859,125 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1get_1paymen
        (*env)->GetByteArrayRegion(env, payment_secret, 0, 32, payment_secret_ref.data);
        LDKCResult_PaymentPreimageAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentPreimageAPIErrorZ), "LDKCResult_PaymentPreimageAPIErrorZ");
        *ret_conv = ChannelManager_get_payment_preimage(&this_arg_conv, payment_hash_ref, payment_secret_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1get_1phantom_1scid(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int64_t ret_conv = ChannelManager_get_phantom_scid(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1get_1phantom_1route_1hints(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKPhantomRouteHints ret_var = ChannelManager_get_phantom_route_hints(&this_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1as_1MessageSendEventsProvider(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKMessageSendEventsProvider* ret_ret = MALLOC(sizeof(LDKMessageSendEventsProvider), "LDKMessageSendEventsProvider");
        *ret_ret = ChannelManager_as_MessageSendEventsProvider(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1as_1EventsProvider(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKEventsProvider* ret_ret = MALLOC(sizeof(LDKEventsProvider), "LDKEventsProvider");
        *ret_ret = ChannelManager_as_EventsProvider(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1as_1Listen(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKListen* ret_ret = MALLOC(sizeof(LDKListen), "LDKListen");
        *ret_ret = ChannelManager_as_Listen(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1as_1Confirm(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKConfirm* ret_ret = MALLOC(sizeof(LDKConfirm), "LDKConfirm");
        *ret_ret = ChannelManager_as_Confirm(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelManager_1await_1persistable_1update_1timeout(JNIEnv *env, jclass clz, int64_t this_arg, int64_t max_wait) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = ChannelManager_await_persistable_update_timeout(&this_arg_conv, max_wait);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManager_1await_1persistable_1update(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        ChannelManager_await_persistable_update(&this_arg_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1current_1best_1block(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKBestBlock ret_var = ChannelManager_current_best_block(&this_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1as_1ChannelMessageHandler(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKChannelMessageHandler* ret_ret = MALLOC(sizeof(LDKChannelMessageHandler), "LDKChannelMessageHandler");
        *ret_ret = ChannelManager_as_ChannelMessageHandler(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_CounterpartyForwardingInfo_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKCounterpartyForwardingInfo obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = CounterpartyForwardingInfo_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -31414,14 +29992,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CounterpartyForwardingInfo_
        LDKCResult_CounterpartyForwardingInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CounterpartyForwardingInfoDecodeErrorZ), "LDKCResult_CounterpartyForwardingInfoDecodeErrorZ");
        *ret_conv = CounterpartyForwardingInfo_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKChannelCounterparty obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = ChannelCounterparty_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -31436,14 +30015,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1read(J
        LDKCResult_ChannelCounterpartyDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelCounterpartyDecodeErrorZ), "LDKCResult_ChannelCounterpartyDecodeErrorZ");
        *ret_conv = ChannelCounterparty_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKChannelDetails obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = ChannelDetails_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -31458,14 +30038,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1read(JNIEnv
        LDKCResult_ChannelDetailsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelDetailsDecodeErrorZ), "LDKCResult_ChannelDetailsDecodeErrorZ");
        *ret_conv = ChannelDetails_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_PhantomRouteHints_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKPhantomRouteHints obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = PhantomRouteHints_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -31480,14 +30061,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PhantomRouteHints_1read(JNI
        LDKCResult_PhantomRouteHintsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PhantomRouteHintsDecodeErrorZ), "LDKCResult_PhantomRouteHintsDecodeErrorZ");
        *ret_conv = PhantomRouteHints_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelManager_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKChannelManager obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = ChannelManager_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -31497,28 +30079,30 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelManager_1write(J
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKChannelManagerReadArgs this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ChannelManagerReadArgs_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1get_1keys_1manager(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelManagerReadArgs this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        // WARNING: This object doesn't live past this scope, needs clone!
-       int64_t ret_ret = ((uintptr_t)ChannelManagerReadArgs_get_keys_manager(&this_ptr_conv)) | 1;
+       int64_t ret_ret = tag_ptr(ChannelManagerReadArgs_get_keys_manager(&this_ptr_conv), false);
        return ret_ret;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1set_1keys_1manager(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelManagerReadArgs this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKKeysInterface val_conv = *(LDKKeysInterface*)(val_ptr);
        if (val_conv.free == LDKKeysInterface_JCalls_free) {
@@ -31530,20 +30114,22 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1set_1k
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1get_1fee_1estimator(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelManagerReadArgs this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        // WARNING: This object doesn't live past this scope, needs clone!
-       int64_t ret_ret = ((uintptr_t)ChannelManagerReadArgs_get_fee_estimator(&this_ptr_conv)) | 1;
+       int64_t ret_ret = tag_ptr(ChannelManagerReadArgs_get_fee_estimator(&this_ptr_conv), false);
        return ret_ret;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1set_1fee_1estimator(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelManagerReadArgs this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKFeeEstimator val_conv = *(LDKFeeEstimator*)(val_ptr);
        if (val_conv.free == LDKFeeEstimator_JCalls_free) {
@@ -31555,20 +30141,22 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1set_1f
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1get_1chain_1monitor(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelManagerReadArgs this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        // WARNING: This object doesn't live past this scope, needs clone!
-       int64_t ret_ret = ((uintptr_t)ChannelManagerReadArgs_get_chain_monitor(&this_ptr_conv)) | 1;
+       int64_t ret_ret = tag_ptr(ChannelManagerReadArgs_get_chain_monitor(&this_ptr_conv), false);
        return ret_ret;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1set_1chain_1monitor(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelManagerReadArgs this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKWatch val_conv = *(LDKWatch*)(val_ptr);
        if (val_conv.free == LDKWatch_JCalls_free) {
@@ -31580,20 +30168,22 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1set_1c
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1get_1tx_1broadcaster(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelManagerReadArgs this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        // WARNING: This object doesn't live past this scope, needs clone!
-       int64_t ret_ret = ((uintptr_t)ChannelManagerReadArgs_get_tx_broadcaster(&this_ptr_conv)) | 1;
+       int64_t ret_ret = tag_ptr(ChannelManagerReadArgs_get_tx_broadcaster(&this_ptr_conv), false);
        return ret_ret;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1set_1tx_1broadcaster(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelManagerReadArgs this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKBroadcasterInterface val_conv = *(LDKBroadcasterInterface*)(val_ptr);
        if (val_conv.free == LDKBroadcasterInterface_JCalls_free) {
@@ -31605,20 +30195,22 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1set_1t
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1get_1logger(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelManagerReadArgs this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        // WARNING: This object doesn't live past this scope, needs clone!
-       int64_t ret_ret = ((uintptr_t)ChannelManagerReadArgs_get_logger(&this_ptr_conv)) | 1;
+       int64_t ret_ret = tag_ptr(ChannelManagerReadArgs_get_logger(&this_ptr_conv), false);
        return ret_ret;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1set_1logger(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelManagerReadArgs this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKLogger val_conv = *(LDKLogger*)(val_ptr);
        if (val_conv.free == LDKLogger_JCalls_free) {
@@ -31630,64 +30222,61 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1set_1l
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1get_1default_1config(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelManagerReadArgs this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKUserConfig ret_var = ChannelManagerReadArgs_get_default_config(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1set_1default_1config(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelManagerReadArgs this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKUserConfig val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = UserConfig_clone(&val_conv);
        ChannelManagerReadArgs_set_default_config(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1new(JNIEnv *env, jclass clz, int64_t keys_manager, int64_t fee_estimator, int64_t chain_monitor, int64_t tx_broadcaster, int64_t logger, int64_t default_config, int64_tArray channel_monitors) {
-       void* keys_manager_ptr = (void*)(((uintptr_t)keys_manager) & ~1);
+       void* keys_manager_ptr = untag_ptr(keys_manager);
        CHECK_ACCESS(keys_manager_ptr);
        LDKKeysInterface keys_manager_conv = *(LDKKeysInterface*)(keys_manager_ptr);
        if (keys_manager_conv.free == LDKKeysInterface_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKKeysInterface_JCalls_cloned(&keys_manager_conv);
        }
-       void* fee_estimator_ptr = (void*)(((uintptr_t)fee_estimator) & ~1);
+       void* fee_estimator_ptr = untag_ptr(fee_estimator);
        CHECK_ACCESS(fee_estimator_ptr);
        LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(fee_estimator_ptr);
        if (fee_estimator_conv.free == LDKFeeEstimator_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKFeeEstimator_JCalls_cloned(&fee_estimator_conv);
        }
-       void* chain_monitor_ptr = (void*)(((uintptr_t)chain_monitor) & ~1);
+       void* chain_monitor_ptr = untag_ptr(chain_monitor);
        CHECK_ACCESS(chain_monitor_ptr);
        LDKWatch chain_monitor_conv = *(LDKWatch*)(chain_monitor_ptr);
        if (chain_monitor_conv.free == LDKWatch_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKWatch_JCalls_cloned(&chain_monitor_conv);
        }
-       void* tx_broadcaster_ptr = (void*)(((uintptr_t)tx_broadcaster) & ~1);
+       void* tx_broadcaster_ptr = untag_ptr(tx_broadcaster);
        CHECK_ACCESS(tx_broadcaster_ptr);
        LDKBroadcasterInterface tx_broadcaster_conv = *(LDKBroadcasterInterface*)(tx_broadcaster_ptr);
        if (tx_broadcaster_conv.free == LDKBroadcasterInterface_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKBroadcasterInterface_JCalls_cloned(&tx_broadcaster_conv);
        }
-       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
+       void* logger_ptr = untag_ptr(logger);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
        if (logger_conv.free == LDKLogger_JCalls_free) {
@@ -31695,8 +30284,8 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1new
                LDKLogger_JCalls_cloned(&logger_conv);
        }
        LDKUserConfig default_config_conv;
-       default_config_conv.inner = (void*)(default_config & (~1));
-       default_config_conv.is_owned = (default_config & 1) || (default_config == 0);
+       default_config_conv.inner = untag_ptr(default_config);
+       default_config_conv.is_owned = ptr_is_owned(default_config);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(default_config_conv);
        default_config_conv = UserConfig_clone(&default_config_conv);
        LDKCVec_ChannelMonitorZ channel_monitors_constr;
@@ -31709,21 +30298,17 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1new
        for (size_t q = 0; q < channel_monitors_constr.datalen; q++) {
                int64_t channel_monitors_conv_16 = channel_monitors_vals[q];
                LDKChannelMonitor channel_monitors_conv_16_conv;
-               channel_monitors_conv_16_conv.inner = (void*)(channel_monitors_conv_16 & (~1));
-               channel_monitors_conv_16_conv.is_owned = (channel_monitors_conv_16 & 1) || (channel_monitors_conv_16 == 0);
+               channel_monitors_conv_16_conv.inner = untag_ptr(channel_monitors_conv_16);
+               channel_monitors_conv_16_conv.is_owned = ptr_is_owned(channel_monitors_conv_16);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_monitors_conv_16_conv);
+               channel_monitors_conv_16_conv.is_owned = false;
                channel_monitors_constr.data[q] = channel_monitors_conv_16_conv;
        }
        (*env)->ReleaseLongArrayElements(env, channel_monitors, channel_monitors_vals, 0);
        LDKChannelManagerReadArgs ret_var = ChannelManagerReadArgs_new(keys_manager_conv, fee_estimator_conv, chain_monitor_conv, tx_broadcaster_conv, logger_conv, default_config_conv, channel_monitors_constr);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -31732,20 +30317,21 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1BlockHashChannelMa
        ser_ref.datalen = (*env)->GetArrayLength(env, ser);
        ser_ref.data = (*env)->GetByteArrayElements (env, ser, NULL);
        LDKChannelManagerReadArgs arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = (arg & 1) || (arg == 0);
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
        // WARNING: we need a move here but no clone is available for LDKChannelManagerReadArgs
+       
        LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ), "LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ");
        *ret_conv = C2Tuple_BlockHashChannelManagerZ_read(ser_ref, arg_conv);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ExpandedKey_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKExpandedKey this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ExpandedKey_free(this_obj_conv);
 }
@@ -31757,129 +30343,115 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ExpandedKey_1new(JNIEnv *en
        unsigned char (*key_material_ref)[32] = &key_material_arr;
        LDKExpandedKey ret_var = ExpandedKey_new(key_material_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_create(JNIEnv *env, jclass clz, int64_t keys, int64_t min_value_msat, int32_t invoice_expiry_delta_secs, int64_t keys_manager, int64_t current_time) {
        LDKExpandedKey keys_conv;
-       keys_conv.inner = (void*)(keys & (~1));
-       keys_conv.is_owned = false;
+       keys_conv.inner = untag_ptr(keys);
+       keys_conv.is_owned = ptr_is_owned(keys);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(keys_conv);
-       void* min_value_msat_ptr = (void*)(((uintptr_t)min_value_msat) & ~1);
+       keys_conv.is_owned = false;
+       void* min_value_msat_ptr = untag_ptr(min_value_msat);
        CHECK_ACCESS(min_value_msat_ptr);
        LDKCOption_u64Z min_value_msat_conv = *(LDKCOption_u64Z*)(min_value_msat_ptr);
-       min_value_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)min_value_msat) & ~1));
-       void* keys_manager_ptr = (void*)(((uintptr_t)keys_manager) & ~1);
-       if (!(keys_manager & 1)) { CHECK_ACCESS(keys_manager_ptr); }
+       min_value_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(min_value_msat));
+       void* keys_manager_ptr = untag_ptr(keys_manager);
+       if (ptr_is_owned(keys_manager)) { CHECK_ACCESS(keys_manager_ptr); }
        LDKKeysInterface* keys_manager_conv = (LDKKeysInterface*)keys_manager_ptr;
        LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ), "LDKCResult_C2Tuple_PaymentHashPaymentSecretZNoneZ");
        *ret_conv = create(&keys_conv, min_value_msat_conv, invoice_expiry_delta_secs, keys_manager_conv, current_time);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_create_1from_1hash(JNIEnv *env, jclass clz, int64_t keys, int64_t min_value_msat, int8_tArray payment_hash, int32_t invoice_expiry_delta_secs, int64_t current_time) {
        LDKExpandedKey keys_conv;
-       keys_conv.inner = (void*)(keys & (~1));
-       keys_conv.is_owned = false;
+       keys_conv.inner = untag_ptr(keys);
+       keys_conv.is_owned = ptr_is_owned(keys);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(keys_conv);
-       void* min_value_msat_ptr = (void*)(((uintptr_t)min_value_msat) & ~1);
+       keys_conv.is_owned = false;
+       void* min_value_msat_ptr = untag_ptr(min_value_msat);
        CHECK_ACCESS(min_value_msat_ptr);
        LDKCOption_u64Z min_value_msat_conv = *(LDKCOption_u64Z*)(min_value_msat_ptr);
-       min_value_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)min_value_msat) & ~1));
+       min_value_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(min_value_msat));
        LDKThirtyTwoBytes payment_hash_ref;
        CHECK((*env)->GetArrayLength(env, payment_hash) == 32);
        (*env)->GetByteArrayRegion(env, payment_hash, 0, 32, payment_hash_ref.data);
        LDKCResult_PaymentSecretNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentSecretNoneZ), "LDKCResult_PaymentSecretNoneZ");
        *ret_conv = create_from_hash(&keys_conv, min_value_msat_conv, payment_hash_ref, invoice_expiry_delta_secs, current_time);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_DecodeError_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKDecodeError this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        DecodeError_free(this_obj_conv);
 }
 
-static inline uintptr_t DecodeError_clone_ptr(LDKDecodeError *NONNULL_PTR arg) {
+static inline uint64_t DecodeError_clone_ptr(LDKDecodeError *NONNULL_PTR arg) {
        LDKDecodeError ret_var = DecodeError_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DecodeError_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKDecodeError arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = DecodeError_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DecodeError_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKDecodeError orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKDecodeError ret_var = DecodeError_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Init_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKInit this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        Init_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Init_1get_1features(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKInit this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKInitFeatures ret_var = Init_get_features(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Init_1set_1features(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKInit this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKInitFeatures val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = InitFeatures_clone(&val_conv);
        Init_set_features(&this_ptr_conv, val_conv);
@@ -31887,99 +30459,89 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Init_1set_1features(JNIEnv *en
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Init_1get_1remote_1network_1address(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKInit this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCOption_NetAddressZ *ret_copy = MALLOC(sizeof(LDKCOption_NetAddressZ), "LDKCOption_NetAddressZ");
        *ret_copy = Init_get_remote_network_address(&this_ptr_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Init_1set_1remote_1network_1address(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKInit this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKCOption_NetAddressZ val_conv = *(LDKCOption_NetAddressZ*)(val_ptr);
-       val_conv = COption_NetAddressZ_clone((LDKCOption_NetAddressZ*)(((uintptr_t)val) & ~1));
+       val_conv = COption_NetAddressZ_clone((LDKCOption_NetAddressZ*)untag_ptr(val));
        Init_set_remote_network_address(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Init_1new(JNIEnv *env, jclass clz, int64_t features_arg, int64_t remote_network_address_arg) {
        LDKInitFeatures features_arg_conv;
-       features_arg_conv.inner = (void*)(features_arg & (~1));
-       features_arg_conv.is_owned = (features_arg & 1) || (features_arg == 0);
+       features_arg_conv.inner = untag_ptr(features_arg);
+       features_arg_conv.is_owned = ptr_is_owned(features_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(features_arg_conv);
        features_arg_conv = InitFeatures_clone(&features_arg_conv);
-       void* remote_network_address_arg_ptr = (void*)(((uintptr_t)remote_network_address_arg) & ~1);
+       void* remote_network_address_arg_ptr = untag_ptr(remote_network_address_arg);
        CHECK_ACCESS(remote_network_address_arg_ptr);
        LDKCOption_NetAddressZ remote_network_address_arg_conv = *(LDKCOption_NetAddressZ*)(remote_network_address_arg_ptr);
        LDKInit ret_var = Init_new(features_arg_conv, remote_network_address_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t Init_clone_ptr(LDKInit *NONNULL_PTR arg) {
+static inline uint64_t Init_clone_ptr(LDKInit *NONNULL_PTR arg) {
        LDKInit ret_var = Init_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Init_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKInit arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = Init_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Init_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKInit orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKInit ret_var = Init_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ErrorMessage_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKErrorMessage this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ErrorMessage_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ErrorMessage_1get_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKErrorMessage this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *ErrorMessage_get_channel_id(&this_ptr_conv));
        return ret_arr;
@@ -31987,9 +30549,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ErrorMessage_1get_1chan
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ErrorMessage_1set_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKErrorMessage this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -31998,9 +30561,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ErrorMessage_1set_1channel_1id
 
 JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_ErrorMessage_1get_1data(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKErrorMessage this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKStr ret_str = ErrorMessage_get_data(&this_ptr_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
        Str_free(ret_str);
@@ -32009,9 +30573,10 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_ErrorMessage_1get_1data(JNI
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ErrorMessage_1set_1data(JNIEnv *env, jclass clz, int64_t this_ptr, jstring val) {
        LDKErrorMessage this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKStr val_conv = java_to_owned_str(env, val);
        ErrorMessage_set_data(&this_ptr_conv, val_conv);
 }
@@ -32023,67 +30588,55 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ErrorMessage_1new(JNIEnv *e
        LDKStr data_arg_conv = java_to_owned_str(env, data_arg);
        LDKErrorMessage ret_var = ErrorMessage_new(channel_id_arg_ref, data_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t ErrorMessage_clone_ptr(LDKErrorMessage *NONNULL_PTR arg) {
+static inline uint64_t ErrorMessage_clone_ptr(LDKErrorMessage *NONNULL_PTR arg) {
        LDKErrorMessage ret_var = ErrorMessage_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ErrorMessage_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKErrorMessage arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ErrorMessage_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ErrorMessage_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKErrorMessage orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKErrorMessage ret_var = ErrorMessage_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_WarningMessage_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKWarningMessage this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        WarningMessage_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_WarningMessage_1get_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKWarningMessage this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *WarningMessage_get_channel_id(&this_ptr_conv));
        return ret_arr;
@@ -32091,9 +30644,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_WarningMessage_1get_1ch
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_WarningMessage_1set_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKWarningMessage this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -32102,9 +30656,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_WarningMessage_1set_1channel_1
 
 JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_WarningMessage_1get_1data(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKWarningMessage this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKStr ret_str = WarningMessage_get_data(&this_ptr_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
        Str_free(ret_str);
@@ -32113,9 +30668,10 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_WarningMessage_1get_1data(J
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_WarningMessage_1set_1data(JNIEnv *env, jclass clz, int64_t this_ptr, jstring val) {
        LDKWarningMessage this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKStr val_conv = java_to_owned_str(env, val);
        WarningMessage_set_data(&this_ptr_conv, val_conv);
 }
@@ -32127,236 +30683,204 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_WarningMessage_1new(JNIEnv
        LDKStr data_arg_conv = java_to_owned_str(env, data_arg);
        LDKWarningMessage ret_var = WarningMessage_new(channel_id_arg_ref, data_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t WarningMessage_clone_ptr(LDKWarningMessage *NONNULL_PTR arg) {
+static inline uint64_t WarningMessage_clone_ptr(LDKWarningMessage *NONNULL_PTR arg) {
        LDKWarningMessage ret_var = WarningMessage_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_WarningMessage_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKWarningMessage arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = WarningMessage_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_WarningMessage_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKWarningMessage orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKWarningMessage ret_var = WarningMessage_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Ping_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKPing this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        Ping_free(this_obj_conv);
 }
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_Ping_1get_1ponglen(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKPing this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int16_t ret_conv = Ping_get_ponglen(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Ping_1set_1ponglen(JNIEnv *env, jclass clz, int64_t this_ptr, int16_t val) {
        LDKPing this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        Ping_set_ponglen(&this_ptr_conv, val);
 }
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_Ping_1get_1byteslen(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKPing this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int16_t ret_conv = Ping_get_byteslen(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Ping_1set_1byteslen(JNIEnv *env, jclass clz, int64_t this_ptr, int16_t val) {
        LDKPing this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        Ping_set_byteslen(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Ping_1new(JNIEnv *env, jclass clz, int16_t ponglen_arg, int16_t byteslen_arg) {
        LDKPing ret_var = Ping_new(ponglen_arg, byteslen_arg);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t Ping_clone_ptr(LDKPing *NONNULL_PTR arg) {
+static inline uint64_t Ping_clone_ptr(LDKPing *NONNULL_PTR arg) {
        LDKPing ret_var = Ping_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Ping_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKPing arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = Ping_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Ping_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKPing orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKPing ret_var = Ping_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Pong_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKPong this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        Pong_free(this_obj_conv);
 }
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_Pong_1get_1byteslen(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKPong this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int16_t ret_conv = Pong_get_byteslen(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Pong_1set_1byteslen(JNIEnv *env, jclass clz, int64_t this_ptr, int16_t val) {
        LDKPong this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        Pong_set_byteslen(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Pong_1new(JNIEnv *env, jclass clz, int16_t byteslen_arg) {
        LDKPong ret_var = Pong_new(byteslen_arg);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t Pong_clone_ptr(LDKPong *NONNULL_PTR arg) {
+static inline uint64_t Pong_clone_ptr(LDKPong *NONNULL_PTR arg) {
        LDKPong ret_var = Pong_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Pong_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKPong arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = Pong_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Pong_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKPong orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKPong ret_var = Pong_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKOpenChannel this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        OpenChannel_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1chain_1hash(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *OpenChannel_get_chain_hash(&this_ptr_conv));
        return ret_arr;
@@ -32364,9 +30888,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1chain
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1chain_1hash(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -32375,9 +30900,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1chain_1hash(
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1temporary_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *OpenChannel_get_temporary_channel_id(&this_ptr_conv));
        return ret_arr;
@@ -32385,9 +30911,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1tempo
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1temporary_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -32396,162 +30923,181 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1temporary_1c
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1funding_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = OpenChannel_get_funding_satoshis(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1funding_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        OpenChannel_set_funding_satoshis(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1push_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = OpenChannel_get_push_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1push_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        OpenChannel_set_push_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1dust_1limit_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = OpenChannel_get_dust_limit_satoshis(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1dust_1limit_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        OpenChannel_set_dust_limit_satoshis(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1max_1htlc_1value_1in_1flight_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = OpenChannel_get_max_htlc_value_in_flight_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1max_1htlc_1value_1in_1flight_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        OpenChannel_set_max_htlc_value_in_flight_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1channel_1reserve_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = OpenChannel_get_channel_reserve_satoshis(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1channel_1reserve_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        OpenChannel_set_channel_reserve_satoshis(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1htlc_1minimum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = OpenChannel_get_htlc_minimum_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1htlc_1minimum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        OpenChannel_set_htlc_minimum_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1feerate_1per_1kw(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = OpenChannel_get_feerate_per_kw(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1feerate_1per_1kw(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        OpenChannel_set_feerate_per_kw(&this_ptr_conv, val);
 }
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1to_1self_1delay(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int16_t ret_conv = OpenChannel_get_to_self_delay(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1to_1self_1delay(JNIEnv *env, jclass clz, int64_t this_ptr, int16_t val) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        OpenChannel_set_to_self_delay(&this_ptr_conv, val);
 }
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1max_1accepted_1htlcs(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int16_t ret_conv = OpenChannel_get_max_accepted_htlcs(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1max_1accepted_1htlcs(JNIEnv *env, jclass clz, int64_t this_ptr, int16_t val) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        OpenChannel_set_max_accepted_htlcs(&this_ptr_conv, val);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1funding_1pubkey(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, OpenChannel_get_funding_pubkey(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -32559,9 +31105,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1fundi
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1funding_1pubkey(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -32570,9 +31117,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1funding_1pub
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1revocation_1basepoint(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, OpenChannel_get_revocation_basepoint(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -32580,9 +31128,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1revoc
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1revocation_1basepoint(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -32591,9 +31140,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1revocation_1
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1payment_1point(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, OpenChannel_get_payment_point(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -32601,9 +31151,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1payme
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1payment_1point(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -32612,9 +31163,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1payment_1poi
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1delayed_1payment_1basepoint(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, OpenChannel_get_delayed_payment_basepoint(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -32622,9 +31174,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1delay
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1delayed_1payment_1basepoint(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -32633,9 +31186,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1delayed_1pay
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1htlc_1basepoint(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, OpenChannel_get_htlc_basepoint(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -32643,9 +31197,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1htlc_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1htlc_1basepoint(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -32654,9 +31209,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1htlc_1basepo
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1first_1per_1commitment_1point(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, OpenChannel_get_first_per_commitment_point(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -32664,9 +31220,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1first
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1first_1per_1commitment_1point(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -32675,104 +31232,94 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1first_1per_1
 
 JNIEXPORT int8_t JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1channel_1flags(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_t ret_conv = OpenChannel_get_channel_flags(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1channel_1flags(JNIEnv *env, jclass clz, int64_t this_ptr, int8_t val) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        OpenChannel_set_channel_flags(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_OpenChannel_1get_1channel_1type(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelTypeFeatures ret_var = OpenChannel_get_channel_type(&this_ptr_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_OpenChannel_1set_1channel_1type(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKOpenChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelTypeFeatures val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = ChannelTypeFeatures_clone(&val_conv);
        OpenChannel_set_channel_type(&this_ptr_conv, val_conv);
 }
 
-static inline uintptr_t OpenChannel_clone_ptr(LDKOpenChannel *NONNULL_PTR arg) {
+static inline uint64_t OpenChannel_clone_ptr(LDKOpenChannel *NONNULL_PTR arg) {
        LDKOpenChannel ret_var = OpenChannel_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_OpenChannel_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKOpenChannel arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = OpenChannel_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_OpenChannel_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKOpenChannel orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKOpenChannel ret_var = OpenChannel_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKAcceptChannel this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        AcceptChannel_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1get_1temporary_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *AcceptChannel_get_temporary_channel_id(&this_ptr_conv));
        return ret_arr;
@@ -32780,9 +31327,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1get_1tem
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1set_1temporary_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -32791,128 +31339,143 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1set_1temporary_
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1get_1dust_1limit_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = AcceptChannel_get_dust_limit_satoshis(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1set_1dust_1limit_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        AcceptChannel_set_dust_limit_satoshis(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1get_1max_1htlc_1value_1in_1flight_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = AcceptChannel_get_max_htlc_value_in_flight_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1set_1max_1htlc_1value_1in_1flight_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        AcceptChannel_set_max_htlc_value_in_flight_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1get_1channel_1reserve_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = AcceptChannel_get_channel_reserve_satoshis(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1set_1channel_1reserve_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        AcceptChannel_set_channel_reserve_satoshis(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1get_1htlc_1minimum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = AcceptChannel_get_htlc_minimum_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1set_1htlc_1minimum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        AcceptChannel_set_htlc_minimum_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1get_1minimum_1depth(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = AcceptChannel_get_minimum_depth(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1set_1minimum_1depth(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        AcceptChannel_set_minimum_depth(&this_ptr_conv, val);
 }
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1get_1to_1self_1delay(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int16_t ret_conv = AcceptChannel_get_to_self_delay(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1set_1to_1self_1delay(JNIEnv *env, jclass clz, int64_t this_ptr, int16_t val) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        AcceptChannel_set_to_self_delay(&this_ptr_conv, val);
 }
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1get_1max_1accepted_1htlcs(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int16_t ret_conv = AcceptChannel_get_max_accepted_htlcs(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1set_1max_1accepted_1htlcs(JNIEnv *env, jclass clz, int64_t this_ptr, int16_t val) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        AcceptChannel_set_max_accepted_htlcs(&this_ptr_conv, val);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1get_1funding_1pubkey(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, AcceptChannel_get_funding_pubkey(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -32920,9 +31483,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1get_1fun
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1set_1funding_1pubkey(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -32931,9 +31495,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1set_1funding_1p
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1get_1revocation_1basepoint(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, AcceptChannel_get_revocation_basepoint(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -32941,9 +31506,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1get_1rev
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1set_1revocation_1basepoint(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -32952,9 +31518,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1set_1revocation
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1get_1payment_1point(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, AcceptChannel_get_payment_point(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -32962,9 +31529,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1get_1pay
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1set_1payment_1point(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -32973,9 +31541,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1set_1payment_1p
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1get_1delayed_1payment_1basepoint(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, AcceptChannel_get_delayed_payment_basepoint(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -32983,9 +31552,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1get_1del
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1set_1delayed_1payment_1basepoint(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -32994,9 +31564,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1set_1delayed_1p
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1get_1htlc_1basepoint(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, AcceptChannel_get_htlc_basepoint(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -33004,9 +31575,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1get_1htl
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1set_1htlc_1basepoint(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -33015,9 +31587,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1set_1htlc_1base
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1get_1first_1per_1commitment_1point(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, AcceptChannel_get_first_per_commitment_point(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -33025,9 +31598,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1get_1fir
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1set_1first_1per_1commitment_1point(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -33036,87 +31610,75 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1set_1first_1per
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1get_1channel_1type(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelTypeFeatures ret_var = AcceptChannel_get_channel_type(&this_ptr_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1set_1channel_1type(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKAcceptChannel this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelTypeFeatures val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = ChannelTypeFeatures_clone(&val_conv);
        AcceptChannel_set_channel_type(&this_ptr_conv, val_conv);
 }
 
-static inline uintptr_t AcceptChannel_clone_ptr(LDKAcceptChannel *NONNULL_PTR arg) {
+static inline uint64_t AcceptChannel_clone_ptr(LDKAcceptChannel *NONNULL_PTR arg) {
        LDKAcceptChannel ret_var = AcceptChannel_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKAcceptChannel arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = AcceptChannel_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKAcceptChannel orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKAcceptChannel ret_var = AcceptChannel_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_FundingCreated_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKFundingCreated this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        FundingCreated_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_FundingCreated_1get_1temporary_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKFundingCreated this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *FundingCreated_get_temporary_channel_id(&this_ptr_conv));
        return ret_arr;
@@ -33124,9 +31686,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_FundingCreated_1get_1te
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_FundingCreated_1set_1temporary_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKFundingCreated this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -33135,9 +31698,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_FundingCreated_1set_1temporary
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_FundingCreated_1get_1funding_1txid(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKFundingCreated this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *FundingCreated_get_funding_txid(&this_ptr_conv));
        return ret_arr;
@@ -33145,9 +31709,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_FundingCreated_1get_1fu
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_FundingCreated_1set_1funding_1txid(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKFundingCreated this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -33156,26 +31721,29 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_FundingCreated_1set_1funding_1
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_FundingCreated_1get_1funding_1output_1index(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKFundingCreated this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int16_t ret_conv = FundingCreated_get_funding_output_index(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_FundingCreated_1set_1funding_1output_1index(JNIEnv *env, jclass clz, int64_t this_ptr, int16_t val) {
        LDKFundingCreated this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        FundingCreated_set_funding_output_index(&this_ptr_conv, val);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_FundingCreated_1get_1signature(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKFundingCreated this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 64);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 64, FundingCreated_get_signature(&this_ptr_conv).compact_form);
        return ret_arr;
@@ -33183,9 +31751,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_FundingCreated_1get_1si
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_FundingCreated_1set_1signature(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKFundingCreated this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKSignature val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 64);
        (*env)->GetByteArrayRegion(env, val, 0, 64, val_ref.compact_form);
@@ -33204,67 +31773,55 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_FundingCreated_1new(JNIEnv
        (*env)->GetByteArrayRegion(env, signature_arg, 0, 64, signature_arg_ref.compact_form);
        LDKFundingCreated ret_var = FundingCreated_new(temporary_channel_id_arg_ref, funding_txid_arg_ref, funding_output_index_arg, signature_arg_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t FundingCreated_clone_ptr(LDKFundingCreated *NONNULL_PTR arg) {
+static inline uint64_t FundingCreated_clone_ptr(LDKFundingCreated *NONNULL_PTR arg) {
        LDKFundingCreated ret_var = FundingCreated_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_FundingCreated_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKFundingCreated arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = FundingCreated_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_FundingCreated_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKFundingCreated orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKFundingCreated ret_var = FundingCreated_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_FundingSigned_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKFundingSigned this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        FundingSigned_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_FundingSigned_1get_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKFundingSigned this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *FundingSigned_get_channel_id(&this_ptr_conv));
        return ret_arr;
@@ -33272,9 +31829,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_FundingSigned_1get_1cha
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_FundingSigned_1set_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKFundingSigned this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -33283,9 +31841,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_FundingSigned_1set_1channel_1i
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_FundingSigned_1get_1signature(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKFundingSigned this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 64);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 64, FundingSigned_get_signature(&this_ptr_conv).compact_form);
        return ret_arr;
@@ -33293,9 +31852,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_FundingSigned_1get_1sig
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_FundingSigned_1set_1signature(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKFundingSigned this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKSignature val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 64);
        (*env)->GetByteArrayRegion(env, val, 0, 64, val_ref.compact_form);
@@ -33311,67 +31871,55 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_FundingSigned_1new(JNIEnv *
        (*env)->GetByteArrayRegion(env, signature_arg, 0, 64, signature_arg_ref.compact_form);
        LDKFundingSigned ret_var = FundingSigned_new(channel_id_arg_ref, signature_arg_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t FundingSigned_clone_ptr(LDKFundingSigned *NONNULL_PTR arg) {
+static inline uint64_t FundingSigned_clone_ptr(LDKFundingSigned *NONNULL_PTR arg) {
        LDKFundingSigned ret_var = FundingSigned_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_FundingSigned_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKFundingSigned arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = FundingSigned_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_FundingSigned_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKFundingSigned orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKFundingSigned ret_var = FundingSigned_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelReady_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKChannelReady this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ChannelReady_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelReady_1get_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelReady this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *ChannelReady_get_channel_id(&this_ptr_conv));
        return ret_arr;
@@ -33379,9 +31927,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelReady_1get_1chan
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelReady_1set_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKChannelReady this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -33390,9 +31939,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelReady_1set_1channel_1id
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelReady_1get_1next_1per_1commitment_1point(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelReady this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, ChannelReady_get_next_per_commitment_point(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -33400,9 +31950,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelReady_1get_1next
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelReady_1set_1next_1per_1commitment_1point(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKChannelReady this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -33411,24 +31962,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelReady_1set_1next_1per_1
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelReady_1get_1short_1channel_1id_1alias(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelReady this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = ChannelReady_get_short_channel_id_alias(&this_ptr_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelReady_1set_1short_1channel_1id_1alias(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelReady this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
-       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)val) & ~1));
+       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(val));
        ChannelReady_set_short_channel_id_alias(&this_ptr_conv, val_conv);
 }
 
@@ -33439,73 +31992,61 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelReady_1new(JNIEnv *e
        LDKPublicKey next_per_commitment_point_arg_ref;
        CHECK((*env)->GetArrayLength(env, next_per_commitment_point_arg) == 33);
        (*env)->GetByteArrayRegion(env, next_per_commitment_point_arg, 0, 33, next_per_commitment_point_arg_ref.compressed_form);
-       void* short_channel_id_alias_arg_ptr = (void*)(((uintptr_t)short_channel_id_alias_arg) & ~1);
+       void* short_channel_id_alias_arg_ptr = untag_ptr(short_channel_id_alias_arg);
        CHECK_ACCESS(short_channel_id_alias_arg_ptr);
        LDKCOption_u64Z short_channel_id_alias_arg_conv = *(LDKCOption_u64Z*)(short_channel_id_alias_arg_ptr);
-       short_channel_id_alias_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)short_channel_id_alias_arg) & ~1));
+       short_channel_id_alias_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(short_channel_id_alias_arg));
        LDKChannelReady ret_var = ChannelReady_new(channel_id_arg_ref, next_per_commitment_point_arg_ref, short_channel_id_alias_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t ChannelReady_clone_ptr(LDKChannelReady *NONNULL_PTR arg) {
+static inline uint64_t ChannelReady_clone_ptr(LDKChannelReady *NONNULL_PTR arg) {
        LDKChannelReady ret_var = ChannelReady_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelReady_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKChannelReady arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ChannelReady_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelReady_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKChannelReady orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKChannelReady ret_var = ChannelReady_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Shutdown_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKShutdown this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        Shutdown_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Shutdown_1get_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKShutdown this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *Shutdown_get_channel_id(&this_ptr_conv));
        return ret_arr;
@@ -33513,9 +32054,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Shutdown_1get_1channel_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Shutdown_1set_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKShutdown this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -33524,9 +32066,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Shutdown_1set_1channel_1id(JNI
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Shutdown_1get_1scriptpubkey(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKShutdown this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKu8slice ret_var = Shutdown_get_scriptpubkey(&this_ptr_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -33535,9 +32078,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Shutdown_1get_1scriptpu
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Shutdown_1set_1scriptpubkey(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKShutdown this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_u8Z val_ref;
        val_ref.datalen = (*env)->GetArrayLength(env, val);
        val_ref.data = MALLOC(val_ref.datalen, "LDKCVec_u8Z Bytes");
@@ -33555,160 +32099,139 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Shutdown_1new(JNIEnv *env,
        (*env)->GetByteArrayRegion(env, scriptpubkey_arg, 0, scriptpubkey_arg_ref.datalen, scriptpubkey_arg_ref.data);
        LDKShutdown ret_var = Shutdown_new(channel_id_arg_ref, scriptpubkey_arg_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t Shutdown_clone_ptr(LDKShutdown *NONNULL_PTR arg) {
+static inline uint64_t Shutdown_clone_ptr(LDKShutdown *NONNULL_PTR arg) {
        LDKShutdown ret_var = Shutdown_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Shutdown_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKShutdown arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = Shutdown_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Shutdown_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKShutdown orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKShutdown ret_var = Shutdown_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ClosingSignedFeeRange_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKClosingSignedFeeRange this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ClosingSignedFeeRange_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosingSignedFeeRange_1get_1min_1fee_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKClosingSignedFeeRange this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ClosingSignedFeeRange_get_min_fee_satoshis(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ClosingSignedFeeRange_1set_1min_1fee_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKClosingSignedFeeRange this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ClosingSignedFeeRange_set_min_fee_satoshis(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosingSignedFeeRange_1get_1max_1fee_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKClosingSignedFeeRange this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ClosingSignedFeeRange_get_max_fee_satoshis(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ClosingSignedFeeRange_1set_1max_1fee_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKClosingSignedFeeRange this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ClosingSignedFeeRange_set_max_fee_satoshis(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosingSignedFeeRange_1new(JNIEnv *env, jclass clz, int64_t min_fee_satoshis_arg, int64_t max_fee_satoshis_arg) {
        LDKClosingSignedFeeRange ret_var = ClosingSignedFeeRange_new(min_fee_satoshis_arg, max_fee_satoshis_arg);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t ClosingSignedFeeRange_clone_ptr(LDKClosingSignedFeeRange *NONNULL_PTR arg) {
+static inline uint64_t ClosingSignedFeeRange_clone_ptr(LDKClosingSignedFeeRange *NONNULL_PTR arg) {
        LDKClosingSignedFeeRange ret_var = ClosingSignedFeeRange_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosingSignedFeeRange_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKClosingSignedFeeRange arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ClosingSignedFeeRange_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosingSignedFeeRange_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKClosingSignedFeeRange orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKClosingSignedFeeRange ret_var = ClosingSignedFeeRange_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ClosingSigned_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKClosingSigned this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ClosingSigned_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ClosingSigned_1get_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKClosingSigned this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *ClosingSigned_get_channel_id(&this_ptr_conv));
        return ret_arr;
@@ -33716,9 +32239,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ClosingSigned_1get_1cha
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ClosingSigned_1set_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKClosingSigned this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -33727,26 +32251,29 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ClosingSigned_1set_1channel_1i
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosingSigned_1get_1fee_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKClosingSigned this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ClosingSigned_get_fee_satoshis(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ClosingSigned_1set_1fee_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKClosingSigned this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ClosingSigned_set_fee_satoshis(&this_ptr_conv, val);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ClosingSigned_1get_1signature(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKClosingSigned this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 64);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 64, ClosingSigned_get_signature(&this_ptr_conv).compact_form);
        return ret_arr;
@@ -33754,9 +32281,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ClosingSigned_1get_1sig
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ClosingSigned_1set_1signature(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKClosingSigned this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKSignature val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 64);
        (*env)->GetByteArrayRegion(env, val, 0, 64, val_ref.compact_form);
@@ -33765,31 +32293,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ClosingSigned_1set_1signature(
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosingSigned_1get_1fee_1range(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKClosingSigned this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKClosingSignedFeeRange ret_var = ClosingSigned_get_fee_range(&this_ptr_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ClosingSigned_1set_1fee_1range(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKClosingSigned this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKClosingSignedFeeRange val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = ClosingSignedFeeRange_clone(&val_conv);
        ClosingSigned_set_fee_range(&this_ptr_conv, val_conv);
@@ -33803,73 +32326,61 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosingSigned_1new(JNIEnv *
        CHECK((*env)->GetArrayLength(env, signature_arg) == 64);
        (*env)->GetByteArrayRegion(env, signature_arg, 0, 64, signature_arg_ref.compact_form);
        LDKClosingSignedFeeRange fee_range_arg_conv;
-       fee_range_arg_conv.inner = (void*)(fee_range_arg & (~1));
-       fee_range_arg_conv.is_owned = (fee_range_arg & 1) || (fee_range_arg == 0);
+       fee_range_arg_conv.inner = untag_ptr(fee_range_arg);
+       fee_range_arg_conv.is_owned = ptr_is_owned(fee_range_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(fee_range_arg_conv);
        fee_range_arg_conv = ClosingSignedFeeRange_clone(&fee_range_arg_conv);
        LDKClosingSigned ret_var = ClosingSigned_new(channel_id_arg_ref, fee_satoshis_arg, signature_arg_ref, fee_range_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t ClosingSigned_clone_ptr(LDKClosingSigned *NONNULL_PTR arg) {
+static inline uint64_t ClosingSigned_clone_ptr(LDKClosingSigned *NONNULL_PTR arg) {
        LDKClosingSigned ret_var = ClosingSigned_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosingSigned_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKClosingSigned arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ClosingSigned_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosingSigned_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKClosingSigned orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKClosingSigned ret_var = ClosingSigned_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateAddHTLC_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKUpdateAddHTLC this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        UpdateAddHTLC_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UpdateAddHTLC_1get_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUpdateAddHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *UpdateAddHTLC_get_channel_id(&this_ptr_conv));
        return ret_arr;
@@ -33877,9 +32388,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UpdateAddHTLC_1get_1cha
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateAddHTLC_1set_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKUpdateAddHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -33888,43 +32400,48 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateAddHTLC_1set_1channel_1i
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UpdateAddHTLC_1get_1htlc_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUpdateAddHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = UpdateAddHTLC_get_htlc_id(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateAddHTLC_1set_1htlc_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKUpdateAddHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        UpdateAddHTLC_set_htlc_id(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UpdateAddHTLC_1get_1amount_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUpdateAddHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = UpdateAddHTLC_get_amount_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateAddHTLC_1set_1amount_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKUpdateAddHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        UpdateAddHTLC_set_amount_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UpdateAddHTLC_1get_1payment_1hash(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUpdateAddHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *UpdateAddHTLC_get_payment_hash(&this_ptr_conv));
        return ret_arr;
@@ -33932,9 +32449,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UpdateAddHTLC_1get_1pay
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateAddHTLC_1set_1payment_1hash(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKUpdateAddHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -33943,72 +32461,67 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateAddHTLC_1set_1payment_1h
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_UpdateAddHTLC_1get_1cltv_1expiry(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUpdateAddHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = UpdateAddHTLC_get_cltv_expiry(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateAddHTLC_1set_1cltv_1expiry(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKUpdateAddHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        UpdateAddHTLC_set_cltv_expiry(&this_ptr_conv, val);
 }
 
-static inline uintptr_t UpdateAddHTLC_clone_ptr(LDKUpdateAddHTLC *NONNULL_PTR arg) {
+static inline uint64_t UpdateAddHTLC_clone_ptr(LDKUpdateAddHTLC *NONNULL_PTR arg) {
        LDKUpdateAddHTLC ret_var = UpdateAddHTLC_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UpdateAddHTLC_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKUpdateAddHTLC arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = UpdateAddHTLC_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UpdateAddHTLC_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKUpdateAddHTLC orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKUpdateAddHTLC ret_var = UpdateAddHTLC_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateFulfillHTLC_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKUpdateFulfillHTLC this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        UpdateFulfillHTLC_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UpdateFulfillHTLC_1get_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUpdateFulfillHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *UpdateFulfillHTLC_get_channel_id(&this_ptr_conv));
        return ret_arr;
@@ -34016,9 +32529,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UpdateFulfillHTLC_1get_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateFulfillHTLC_1set_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKUpdateFulfillHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -34027,26 +32541,29 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateFulfillHTLC_1set_1channe
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UpdateFulfillHTLC_1get_1htlc_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUpdateFulfillHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = UpdateFulfillHTLC_get_htlc_id(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateFulfillHTLC_1set_1htlc_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKUpdateFulfillHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        UpdateFulfillHTLC_set_htlc_id(&this_ptr_conv, val);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UpdateFulfillHTLC_1get_1payment_1preimage(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUpdateFulfillHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *UpdateFulfillHTLC_get_payment_preimage(&this_ptr_conv));
        return ret_arr;
@@ -34054,9 +32571,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UpdateFulfillHTLC_1get_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateFulfillHTLC_1set_1payment_1preimage(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKUpdateFulfillHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -34072,67 +32590,55 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UpdateFulfillHTLC_1new(JNIE
        (*env)->GetByteArrayRegion(env, payment_preimage_arg, 0, 32, payment_preimage_arg_ref.data);
        LDKUpdateFulfillHTLC ret_var = UpdateFulfillHTLC_new(channel_id_arg_ref, htlc_id_arg, payment_preimage_arg_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t UpdateFulfillHTLC_clone_ptr(LDKUpdateFulfillHTLC *NONNULL_PTR arg) {
+static inline uint64_t UpdateFulfillHTLC_clone_ptr(LDKUpdateFulfillHTLC *NONNULL_PTR arg) {
        LDKUpdateFulfillHTLC ret_var = UpdateFulfillHTLC_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UpdateFulfillHTLC_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKUpdateFulfillHTLC arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = UpdateFulfillHTLC_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UpdateFulfillHTLC_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKUpdateFulfillHTLC orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKUpdateFulfillHTLC ret_var = UpdateFulfillHTLC_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateFailHTLC_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKUpdateFailHTLC this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        UpdateFailHTLC_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UpdateFailHTLC_1get_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUpdateFailHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *UpdateFailHTLC_get_channel_id(&this_ptr_conv));
        return ret_arr;
@@ -34140,9 +32646,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UpdateFailHTLC_1get_1ch
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateFailHTLC_1set_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKUpdateFailHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -34151,72 +32658,67 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateFailHTLC_1set_1channel_1
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UpdateFailHTLC_1get_1htlc_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUpdateFailHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = UpdateFailHTLC_get_htlc_id(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateFailHTLC_1set_1htlc_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKUpdateFailHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        UpdateFailHTLC_set_htlc_id(&this_ptr_conv, val);
 }
 
-static inline uintptr_t UpdateFailHTLC_clone_ptr(LDKUpdateFailHTLC *NONNULL_PTR arg) {
+static inline uint64_t UpdateFailHTLC_clone_ptr(LDKUpdateFailHTLC *NONNULL_PTR arg) {
        LDKUpdateFailHTLC ret_var = UpdateFailHTLC_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UpdateFailHTLC_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKUpdateFailHTLC arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = UpdateFailHTLC_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UpdateFailHTLC_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKUpdateFailHTLC orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKUpdateFailHTLC ret_var = UpdateFailHTLC_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateFailMalformedHTLC_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKUpdateFailMalformedHTLC this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        UpdateFailMalformedHTLC_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UpdateFailMalformedHTLC_1get_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUpdateFailMalformedHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *UpdateFailMalformedHTLC_get_channel_id(&this_ptr_conv));
        return ret_arr;
@@ -34224,9 +32726,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UpdateFailMalformedHTLC
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateFailMalformedHTLC_1set_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKUpdateFailMalformedHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -34235,89 +32738,86 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateFailMalformedHTLC_1set_1
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UpdateFailMalformedHTLC_1get_1htlc_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUpdateFailMalformedHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = UpdateFailMalformedHTLC_get_htlc_id(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateFailMalformedHTLC_1set_1htlc_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKUpdateFailMalformedHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        UpdateFailMalformedHTLC_set_htlc_id(&this_ptr_conv, val);
 }
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_UpdateFailMalformedHTLC_1get_1failure_1code(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUpdateFailMalformedHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int16_t ret_conv = UpdateFailMalformedHTLC_get_failure_code(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateFailMalformedHTLC_1set_1failure_1code(JNIEnv *env, jclass clz, int64_t this_ptr, int16_t val) {
        LDKUpdateFailMalformedHTLC this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        UpdateFailMalformedHTLC_set_failure_code(&this_ptr_conv, val);
 }
 
-static inline uintptr_t UpdateFailMalformedHTLC_clone_ptr(LDKUpdateFailMalformedHTLC *NONNULL_PTR arg) {
+static inline uint64_t UpdateFailMalformedHTLC_clone_ptr(LDKUpdateFailMalformedHTLC *NONNULL_PTR arg) {
        LDKUpdateFailMalformedHTLC ret_var = UpdateFailMalformedHTLC_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UpdateFailMalformedHTLC_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKUpdateFailMalformedHTLC arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = UpdateFailMalformedHTLC_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UpdateFailMalformedHTLC_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKUpdateFailMalformedHTLC orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKUpdateFailMalformedHTLC ret_var = UpdateFailMalformedHTLC_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CommitmentSigned_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKCommitmentSigned this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        CommitmentSigned_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_CommitmentSigned_1get_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKCommitmentSigned this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *CommitmentSigned_get_channel_id(&this_ptr_conv));
        return ret_arr;
@@ -34325,9 +32825,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_CommitmentSigned_1get_1
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CommitmentSigned_1set_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKCommitmentSigned this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -34336,9 +32837,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CommitmentSigned_1set_1channel
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_CommitmentSigned_1get_1signature(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKCommitmentSigned this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 64);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 64, CommitmentSigned_get_signature(&this_ptr_conv).compact_form);
        return ret_arr;
@@ -34346,9 +32848,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_CommitmentSigned_1get_1
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CommitmentSigned_1set_1signature(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKCommitmentSigned this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKSignature val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 64);
        (*env)->GetByteArrayRegion(env, val, 0, 64, val_ref.compact_form);
@@ -34357,9 +32860,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CommitmentSigned_1set_1signatu
 
 JNIEXPORT jobjectArray JNICALL Java_org_ldk_impl_bindings_CommitmentSigned_1get_1htlc_1signatures(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKCommitmentSigned this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_SignatureZ ret_var = CommitmentSigned_get_htlc_signatures(&this_ptr_conv);
        jobjectArray ret_arr = NULL;
        ret_arr = (*env)->NewObjectArray(env, ret_var.datalen, arr_of_B_clz, NULL);
@@ -34376,9 +32880,10 @@ JNIEXPORT jobjectArray JNICALL Java_org_ldk_impl_bindings_CommitmentSigned_1get_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CommitmentSigned_1set_1htlc_1signatures(JNIEnv *env, jclass clz, int64_t this_ptr, jobjectArray val) {
        LDKCommitmentSigned this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_SignatureZ val_constr;
        val_constr.datalen = (*env)->GetArrayLength(env, val);
        if (val_constr.datalen > 0)
@@ -34417,67 +32922,55 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CommitmentSigned_1new(JNIEn
        }
        LDKCommitmentSigned ret_var = CommitmentSigned_new(channel_id_arg_ref, signature_arg_ref, htlc_signatures_arg_constr);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t CommitmentSigned_clone_ptr(LDKCommitmentSigned *NONNULL_PTR arg) {
+static inline uint64_t CommitmentSigned_clone_ptr(LDKCommitmentSigned *NONNULL_PTR arg) {
        LDKCommitmentSigned ret_var = CommitmentSigned_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CommitmentSigned_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKCommitmentSigned arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = CommitmentSigned_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CommitmentSigned_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKCommitmentSigned orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKCommitmentSigned ret_var = CommitmentSigned_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RevokeAndACK_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKRevokeAndACK this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        RevokeAndACK_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_RevokeAndACK_1get_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRevokeAndACK this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *RevokeAndACK_get_channel_id(&this_ptr_conv));
        return ret_arr;
@@ -34485,9 +32978,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_RevokeAndACK_1get_1chan
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RevokeAndACK_1set_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKRevokeAndACK this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -34496,9 +32990,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RevokeAndACK_1set_1channel_1id
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_RevokeAndACK_1get_1per_1commitment_1secret(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRevokeAndACK this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *RevokeAndACK_get_per_commitment_secret(&this_ptr_conv));
        return ret_arr;
@@ -34506,9 +33001,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_RevokeAndACK_1get_1per_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RevokeAndACK_1set_1per_1commitment_1secret(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKRevokeAndACK this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -34517,9 +33013,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RevokeAndACK_1set_1per_1commit
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_RevokeAndACK_1get_1next_1per_1commitment_1point(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRevokeAndACK this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, RevokeAndACK_get_next_per_commitment_point(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -34527,9 +33024,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_RevokeAndACK_1get_1next
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RevokeAndACK_1set_1next_1per_1commitment_1point(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKRevokeAndACK this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -34548,67 +33046,55 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RevokeAndACK_1new(JNIEnv *e
        (*env)->GetByteArrayRegion(env, next_per_commitment_point_arg, 0, 33, next_per_commitment_point_arg_ref.compressed_form);
        LDKRevokeAndACK ret_var = RevokeAndACK_new(channel_id_arg_ref, per_commitment_secret_arg_ref, next_per_commitment_point_arg_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t RevokeAndACK_clone_ptr(LDKRevokeAndACK *NONNULL_PTR arg) {
+static inline uint64_t RevokeAndACK_clone_ptr(LDKRevokeAndACK *NONNULL_PTR arg) {
        LDKRevokeAndACK ret_var = RevokeAndACK_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RevokeAndACK_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKRevokeAndACK arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = RevokeAndACK_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RevokeAndACK_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKRevokeAndACK orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKRevokeAndACK ret_var = RevokeAndACK_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateFee_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKUpdateFee this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        UpdateFee_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UpdateFee_1get_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUpdateFee this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *UpdateFee_get_channel_id(&this_ptr_conv));
        return ret_arr;
@@ -34616,9 +33102,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UpdateFee_1get_1channel
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateFee_1set_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKUpdateFee this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -34627,18 +33114,20 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateFee_1set_1channel_1id(JN
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_UpdateFee_1get_1feerate_1per_1kw(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUpdateFee this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = UpdateFee_get_feerate_per_kw(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UpdateFee_1set_1feerate_1per_1kw(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKUpdateFee this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        UpdateFee_set_feerate_per_kw(&this_ptr_conv, val);
 }
 
@@ -34648,67 +33137,55 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UpdateFee_1new(JNIEnv *env,
        (*env)->GetByteArrayRegion(env, channel_id_arg, 0, 32, channel_id_arg_ref.data);
        LDKUpdateFee ret_var = UpdateFee_new(channel_id_arg_ref, feerate_per_kw_arg);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t UpdateFee_clone_ptr(LDKUpdateFee *NONNULL_PTR arg) {
+static inline uint64_t UpdateFee_clone_ptr(LDKUpdateFee *NONNULL_PTR arg) {
        LDKUpdateFee ret_var = UpdateFee_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UpdateFee_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKUpdateFee arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = UpdateFee_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UpdateFee_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKUpdateFee orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKUpdateFee ret_var = UpdateFee_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_DataLossProtect_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKDataLossProtect this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        DataLossProtect_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_DataLossProtect_1get_1your_1last_1per_1commitment_1secret(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKDataLossProtect this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *DataLossProtect_get_your_last_per_commitment_secret(&this_ptr_conv));
        return ret_arr;
@@ -34716,9 +33193,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_DataLossProtect_1get_1y
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_DataLossProtect_1set_1your_1last_1per_1commitment_1secret(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKDataLossProtect this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -34727,9 +33205,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_DataLossProtect_1set_1your_1la
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_DataLossProtect_1get_1my_1current_1per_1commitment_1point(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKDataLossProtect this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, DataLossProtect_get_my_current_per_commitment_point(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -34737,9 +33216,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_DataLossProtect_1get_1m
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_DataLossProtect_1set_1my_1current_1per_1commitment_1point(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKDataLossProtect this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -34755,67 +33235,55 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DataLossProtect_1new(JNIEnv
        (*env)->GetByteArrayRegion(env, my_current_per_commitment_point_arg, 0, 33, my_current_per_commitment_point_arg_ref.compressed_form);
        LDKDataLossProtect ret_var = DataLossProtect_new(your_last_per_commitment_secret_arg_ref, my_current_per_commitment_point_arg_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t DataLossProtect_clone_ptr(LDKDataLossProtect *NONNULL_PTR arg) {
+static inline uint64_t DataLossProtect_clone_ptr(LDKDataLossProtect *NONNULL_PTR arg) {
        LDKDataLossProtect ret_var = DataLossProtect_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DataLossProtect_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKDataLossProtect arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = DataLossProtect_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DataLossProtect_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKDataLossProtect orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKDataLossProtect ret_var = DataLossProtect_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelReestablish_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKChannelReestablish this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ChannelReestablish_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelReestablish_1get_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelReestablish this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *ChannelReestablish_get_channel_id(&this_ptr_conv));
        return ret_arr;
@@ -34823,9 +33291,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelReestablish_1get
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelReestablish_1set_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKChannelReestablish this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -34834,89 +33303,86 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelReestablish_1set_1chann
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelReestablish_1get_1next_1local_1commitment_1number(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelReestablish this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ChannelReestablish_get_next_local_commitment_number(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelReestablish_1set_1next_1local_1commitment_1number(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelReestablish this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelReestablish_set_next_local_commitment_number(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelReestablish_1get_1next_1remote_1commitment_1number(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelReestablish this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ChannelReestablish_get_next_remote_commitment_number(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelReestablish_1set_1next_1remote_1commitment_1number(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelReestablish this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelReestablish_set_next_remote_commitment_number(&this_ptr_conv, val);
 }
 
-static inline uintptr_t ChannelReestablish_clone_ptr(LDKChannelReestablish *NONNULL_PTR arg) {
+static inline uint64_t ChannelReestablish_clone_ptr(LDKChannelReestablish *NONNULL_PTR arg) {
        LDKChannelReestablish ret_var = ChannelReestablish_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelReestablish_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKChannelReestablish arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ChannelReestablish_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelReestablish_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKChannelReestablish orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKChannelReestablish ret_var = ChannelReestablish_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AnnouncementSignatures_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKAnnouncementSignatures this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        AnnouncementSignatures_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_AnnouncementSignatures_1get_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKAnnouncementSignatures this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *AnnouncementSignatures_get_channel_id(&this_ptr_conv));
        return ret_arr;
@@ -34924,9 +33390,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_AnnouncementSignatures_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AnnouncementSignatures_1set_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKAnnouncementSignatures this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -34935,26 +33402,29 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AnnouncementSignatures_1set_1c
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_AnnouncementSignatures_1get_1short_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKAnnouncementSignatures this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = AnnouncementSignatures_get_short_channel_id(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AnnouncementSignatures_1set_1short_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKAnnouncementSignatures this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        AnnouncementSignatures_set_short_channel_id(&this_ptr_conv, val);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_AnnouncementSignatures_1get_1node_1signature(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKAnnouncementSignatures this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 64);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 64, AnnouncementSignatures_get_node_signature(&this_ptr_conv).compact_form);
        return ret_arr;
@@ -34962,9 +33432,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_AnnouncementSignatures_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AnnouncementSignatures_1set_1node_1signature(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKAnnouncementSignatures this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKSignature val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 64);
        (*env)->GetByteArrayRegion(env, val, 0, 64, val_ref.compact_form);
@@ -34973,9 +33444,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AnnouncementSignatures_1set_1n
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_AnnouncementSignatures_1get_1bitcoin_1signature(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKAnnouncementSignatures this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 64);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 64, AnnouncementSignatures_get_bitcoin_signature(&this_ptr_conv).compact_form);
        return ret_arr;
@@ -34983,9 +33455,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_AnnouncementSignatures_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_AnnouncementSignatures_1set_1bitcoin_1signature(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKAnnouncementSignatures this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKSignature val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 64);
        (*env)->GetByteArrayRegion(env, val, 0, 64, val_ref.compact_form);
@@ -35004,80 +33477,67 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_AnnouncementSignatures_1new
        (*env)->GetByteArrayRegion(env, bitcoin_signature_arg, 0, 64, bitcoin_signature_arg_ref.compact_form);
        LDKAnnouncementSignatures ret_var = AnnouncementSignatures_new(channel_id_arg_ref, short_channel_id_arg, node_signature_arg_ref, bitcoin_signature_arg_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t AnnouncementSignatures_clone_ptr(LDKAnnouncementSignatures *NONNULL_PTR arg) {
+static inline uint64_t AnnouncementSignatures_clone_ptr(LDKAnnouncementSignatures *NONNULL_PTR arg) {
        LDKAnnouncementSignatures ret_var = AnnouncementSignatures_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_AnnouncementSignatures_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKAnnouncementSignatures arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = AnnouncementSignatures_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_AnnouncementSignatures_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKAnnouncementSignatures orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKAnnouncementSignatures ret_var = AnnouncementSignatures_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NetAddress_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKNetAddress this_ptr_conv = *(LDKNetAddress*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        NetAddress_free(this_ptr_conv);
 }
 
-static inline uintptr_t NetAddress_clone_ptr(LDKNetAddress *NONNULL_PTR arg) {
+static inline uint64_t NetAddress_clone_ptr(LDKNetAddress *NONNULL_PTR arg) {
        LDKNetAddress *ret_copy = MALLOC(sizeof(LDKNetAddress), "LDKNetAddress");
        *ret_copy = NetAddress_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetAddress_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKNetAddress* arg_conv = (LDKNetAddress*)arg;
+       LDKNetAddress* arg_conv = (LDKNetAddress*)untag_ptr(arg);
        int64_t ret_conv = NetAddress_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetAddress_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKNetAddress* orig_conv = (LDKNetAddress*)orig;
+       LDKNetAddress* orig_conv = (LDKNetAddress*)untag_ptr(orig);
        LDKNetAddress *ret_copy = MALLOC(sizeof(LDKNetAddress), "LDKNetAddress");
        *ret_copy = NetAddress_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -35087,7 +33547,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetAddress_1ipv4(JNIEnv *en
        (*env)->GetByteArrayRegion(env, addr, 0, 4, addr_ref.data);
        LDKNetAddress *ret_copy = MALLOC(sizeof(LDKNetAddress), "LDKNetAddress");
        *ret_copy = NetAddress_ipv4(addr_ref, port);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -35097,7 +33557,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetAddress_1ipv6(JNIEnv *en
        (*env)->GetByteArrayRegion(env, addr, 0, 16, addr_ref.data);
        LDKNetAddress *ret_copy = MALLOC(sizeof(LDKNetAddress), "LDKNetAddress");
        *ret_copy = NetAddress_ipv6(addr_ref, port);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -35107,7 +33567,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetAddress_1onion_1v2(JNIEn
        (*env)->GetByteArrayRegion(env, a, 0, 12, a_ref.data);
        LDKNetAddress *ret_copy = MALLOC(sizeof(LDKNetAddress), "LDKNetAddress");
        *ret_copy = NetAddress_onion_v2(a_ref);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -35117,24 +33577,24 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetAddress_1onion_1v3(JNIEn
        (*env)->GetByteArrayRegion(env, ed25519_pubkey, 0, 32, ed25519_pubkey_ref.data);
        LDKNetAddress *ret_copy = MALLOC(sizeof(LDKNetAddress), "LDKNetAddress");
        *ret_copy = NetAddress_onion_v3(ed25519_pubkey_ref, checksum, version, port);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetAddress_1hostname(JNIEnv *env, jclass clz, int64_t hostname, int16_t port) {
        LDKHostname hostname_conv;
-       hostname_conv.inner = (void*)(hostname & (~1));
-       hostname_conv.is_owned = (hostname & 1) || (hostname == 0);
+       hostname_conv.inner = untag_ptr(hostname);
+       hostname_conv.is_owned = ptr_is_owned(hostname);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(hostname_conv);
        hostname_conv = Hostname_clone(&hostname_conv);
        LDKNetAddress *ret_copy = MALLOC(sizeof(LDKNetAddress), "LDKNetAddress");
        *ret_copy = NetAddress_hostname(hostname_conv, port);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_NetAddress_1write(JNIEnv *env, jclass clz, int64_t obj) {
-       LDKNetAddress* obj_conv = (LDKNetAddress*)obj;
+       LDKNetAddress* obj_conv = (LDKNetAddress*)untag_ptr(obj);
        LDKCVec_u8Z ret_var = NetAddress_write(obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -35149,42 +33609,39 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetAddress_1read(JNIEnv *en
        LDKCResult_NetAddressDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NetAddressDecodeErrorZ), "LDKCResult_NetAddressDecodeErrorZ");
        *ret_conv = NetAddress_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncement_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKUnsignedNodeAnnouncement this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        UnsignedNodeAnnouncement_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncement_1get_1features(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUnsignedNodeAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKNodeFeatures ret_var = UnsignedNodeAnnouncement_get_features(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncement_1set_1features(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKUnsignedNodeAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKNodeFeatures val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = NodeFeatures_clone(&val_conv);
        UnsignedNodeAnnouncement_set_features(&this_ptr_conv, val_conv);
@@ -35192,26 +33649,29 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncement_1set_
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncement_1get_1timestamp(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUnsignedNodeAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = UnsignedNodeAnnouncement_get_timestamp(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncement_1set_1timestamp(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKUnsignedNodeAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        UnsignedNodeAnnouncement_set_timestamp(&this_ptr_conv, val);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncement_1get_1node_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUnsignedNodeAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, UnsignedNodeAnnouncement_get_node_id(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -35219,9 +33679,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncemen
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncement_1set_1node_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKUnsignedNodeAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -35230,9 +33691,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncement_1set_
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncement_1get_1rgb(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUnsignedNodeAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 3);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 3, *UnsignedNodeAnnouncement_get_rgb(&this_ptr_conv));
        return ret_arr;
@@ -35240,9 +33702,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncemen
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncement_1set_1rgb(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKUnsignedNodeAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThreeBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 3);
        (*env)->GetByteArrayRegion(env, val, 0, 3, val_ref.data);
@@ -35251,9 +33714,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncement_1set_
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncement_1get_1alias(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUnsignedNodeAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *UnsignedNodeAnnouncement_get_alias(&this_ptr_conv));
        return ret_arr;
@@ -35261,9 +33725,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncemen
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncement_1set_1alias(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKUnsignedNodeAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -35272,9 +33737,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncement_1set_
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncement_1get_1addresses(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUnsignedNodeAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_NetAddressZ ret_var = UnsignedNodeAnnouncement_get_addresses(&this_ptr_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -35282,7 +33748,7 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnounceme
        for (size_t m = 0; m < ret_var.datalen; m++) {
                LDKNetAddress *ret_conv_12_copy = MALLOC(sizeof(LDKNetAddress), "LDKNetAddress");
                *ret_conv_12_copy = ret_var.data[m];
-               int64_t ret_conv_12_ref = (uintptr_t)ret_conv_12_copy;
+               int64_t ret_conv_12_ref = tag_ptr(ret_conv_12_copy, true);
                ret_arr_ptr[m] = ret_conv_12_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
@@ -35292,9 +33758,10 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnounceme
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncement_1set_1addresses(JNIEnv *env, jclass clz, int64_t this_ptr, int64_tArray val) {
        LDKUnsignedNodeAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_NetAddressZ val_constr;
        val_constr.datalen = (*env)->GetArrayLength(env, val);
        if (val_constr.datalen > 0)
@@ -35304,67 +33771,60 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncement_1set_
        int64_t* val_vals = (*env)->GetLongArrayElements (env, val, NULL);
        for (size_t m = 0; m < val_constr.datalen; m++) {
                int64_t val_conv_12 = val_vals[m];
-               void* val_conv_12_ptr = (void*)(((uintptr_t)val_conv_12) & ~1);
+               void* val_conv_12_ptr = untag_ptr(val_conv_12);
                CHECK_ACCESS(val_conv_12_ptr);
                LDKNetAddress val_conv_12_conv = *(LDKNetAddress*)(val_conv_12_ptr);
-               val_conv_12_conv = NetAddress_clone((LDKNetAddress*)(((uintptr_t)val_conv_12) & ~1));
+               val_conv_12_conv = NetAddress_clone((LDKNetAddress*)untag_ptr(val_conv_12));
                val_constr.data[m] = val_conv_12_conv;
        }
        (*env)->ReleaseLongArrayElements(env, val, val_vals, 0);
        UnsignedNodeAnnouncement_set_addresses(&this_ptr_conv, val_constr);
 }
 
-static inline uintptr_t UnsignedNodeAnnouncement_clone_ptr(LDKUnsignedNodeAnnouncement *NONNULL_PTR arg) {
+static inline uint64_t UnsignedNodeAnnouncement_clone_ptr(LDKUnsignedNodeAnnouncement *NONNULL_PTR arg) {
        LDKUnsignedNodeAnnouncement ret_var = UnsignedNodeAnnouncement_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncement_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKUnsignedNodeAnnouncement arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = UnsignedNodeAnnouncement_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncement_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKUnsignedNodeAnnouncement orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKUnsignedNodeAnnouncement ret_var = UnsignedNodeAnnouncement_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeAnnouncement_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKNodeAnnouncement this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        NodeAnnouncement_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_NodeAnnouncement_1get_1signature(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKNodeAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 64);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 64, NodeAnnouncement_get_signature(&this_ptr_conv).compact_form);
        return ret_arr;
@@ -35372,9 +33832,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_NodeAnnouncement_1get_1
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeAnnouncement_1set_1signature(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKNodeAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKSignature val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 64);
        (*env)->GetByteArrayRegion(env, val, 0, 64, val_ref.compact_form);
@@ -35383,29 +33844,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeAnnouncement_1set_1signatu
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeAnnouncement_1get_1contents(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKNodeAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKUnsignedNodeAnnouncement ret_var = NodeAnnouncement_get_contents(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeAnnouncement_1set_1contents(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKNodeAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKUnsignedNodeAnnouncement val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = UnsignedNodeAnnouncement_clone(&val_conv);
        NodeAnnouncement_set_contents(&this_ptr_conv, val_conv);
@@ -35416,93 +33874,77 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeAnnouncement_1new(JNIEn
        CHECK((*env)->GetArrayLength(env, signature_arg) == 64);
        (*env)->GetByteArrayRegion(env, signature_arg, 0, 64, signature_arg_ref.compact_form);
        LDKUnsignedNodeAnnouncement contents_arg_conv;
-       contents_arg_conv.inner = (void*)(contents_arg & (~1));
-       contents_arg_conv.is_owned = (contents_arg & 1) || (contents_arg == 0);
+       contents_arg_conv.inner = untag_ptr(contents_arg);
+       contents_arg_conv.is_owned = ptr_is_owned(contents_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(contents_arg_conv);
        contents_arg_conv = UnsignedNodeAnnouncement_clone(&contents_arg_conv);
        LDKNodeAnnouncement ret_var = NodeAnnouncement_new(signature_arg_ref, contents_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t NodeAnnouncement_clone_ptr(LDKNodeAnnouncement *NONNULL_PTR arg) {
+static inline uint64_t NodeAnnouncement_clone_ptr(LDKNodeAnnouncement *NONNULL_PTR arg) {
        LDKNodeAnnouncement ret_var = NodeAnnouncement_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeAnnouncement_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKNodeAnnouncement arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = NodeAnnouncement_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeAnnouncement_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKNodeAnnouncement orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKNodeAnnouncement ret_var = NodeAnnouncement_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnouncement_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKUnsignedChannelAnnouncement this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        UnsignedChannelAnnouncement_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnouncement_1get_1features(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUnsignedChannelAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelFeatures ret_var = UnsignedChannelAnnouncement_get_features(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnouncement_1set_1features(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKUnsignedChannelAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelFeatures val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = ChannelFeatures_clone(&val_conv);
        UnsignedChannelAnnouncement_set_features(&this_ptr_conv, val_conv);
@@ -35510,9 +33952,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnouncement_1s
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnouncement_1get_1chain_1hash(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUnsignedChannelAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *UnsignedChannelAnnouncement_get_chain_hash(&this_ptr_conv));
        return ret_arr;
@@ -35520,9 +33963,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnounce
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnouncement_1set_1chain_1hash(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKUnsignedChannelAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -35531,26 +33975,29 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnouncement_1s
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnouncement_1get_1short_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUnsignedChannelAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = UnsignedChannelAnnouncement_get_short_channel_id(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnouncement_1set_1short_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKUnsignedChannelAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        UnsignedChannelAnnouncement_set_short_channel_id(&this_ptr_conv, val);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnouncement_1get_1node_1id_11(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUnsignedChannelAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, UnsignedChannelAnnouncement_get_node_id_1(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -35558,9 +34005,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnounce
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnouncement_1set_1node_1id_11(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKUnsignedChannelAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -35569,9 +34017,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnouncement_1s
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnouncement_1get_1node_1id_12(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUnsignedChannelAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, UnsignedChannelAnnouncement_get_node_id_2(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -35579,9 +34028,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnounce
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnouncement_1set_1node_1id_12(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKUnsignedChannelAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -35590,9 +34040,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnouncement_1s
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnouncement_1get_1bitcoin_1key_11(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUnsignedChannelAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, UnsignedChannelAnnouncement_get_bitcoin_key_1(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -35600,9 +34051,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnounce
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnouncement_1set_1bitcoin_1key_11(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKUnsignedChannelAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -35611,9 +34063,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnouncement_1s
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnouncement_1get_1bitcoin_1key_12(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUnsignedChannelAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, UnsignedChannelAnnouncement_get_bitcoin_key_2(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -35621,66 +34074,60 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnounce
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnouncement_1set_1bitcoin_1key_12(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKUnsignedChannelAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
        UnsignedChannelAnnouncement_set_bitcoin_key_2(&this_ptr_conv, val_ref);
 }
 
-static inline uintptr_t UnsignedChannelAnnouncement_clone_ptr(LDKUnsignedChannelAnnouncement *NONNULL_PTR arg) {
+static inline uint64_t UnsignedChannelAnnouncement_clone_ptr(LDKUnsignedChannelAnnouncement *NONNULL_PTR arg) {
        LDKUnsignedChannelAnnouncement ret_var = UnsignedChannelAnnouncement_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnouncement_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKUnsignedChannelAnnouncement arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = UnsignedChannelAnnouncement_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnouncement_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKUnsignedChannelAnnouncement orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKUnsignedChannelAnnouncement ret_var = UnsignedChannelAnnouncement_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelAnnouncement_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKChannelAnnouncement this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ChannelAnnouncement_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelAnnouncement_1get_1node_1signature_11(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 64);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 64, ChannelAnnouncement_get_node_signature_1(&this_ptr_conv).compact_form);
        return ret_arr;
@@ -35688,9 +34135,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelAnnouncement_1ge
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelAnnouncement_1set_1node_1signature_11(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKChannelAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKSignature val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 64);
        (*env)->GetByteArrayRegion(env, val, 0, 64, val_ref.compact_form);
@@ -35699,9 +34147,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelAnnouncement_1set_1node
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelAnnouncement_1get_1node_1signature_12(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 64);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 64, ChannelAnnouncement_get_node_signature_2(&this_ptr_conv).compact_form);
        return ret_arr;
@@ -35709,9 +34158,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelAnnouncement_1ge
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelAnnouncement_1set_1node_1signature_12(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKChannelAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKSignature val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 64);
        (*env)->GetByteArrayRegion(env, val, 0, 64, val_ref.compact_form);
@@ -35720,9 +34170,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelAnnouncement_1set_1node
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelAnnouncement_1get_1bitcoin_1signature_11(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 64);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 64, ChannelAnnouncement_get_bitcoin_signature_1(&this_ptr_conv).compact_form);
        return ret_arr;
@@ -35730,9 +34181,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelAnnouncement_1ge
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelAnnouncement_1set_1bitcoin_1signature_11(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKChannelAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKSignature val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 64);
        (*env)->GetByteArrayRegion(env, val, 0, 64, val_ref.compact_form);
@@ -35741,9 +34193,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelAnnouncement_1set_1bitc
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelAnnouncement_1get_1bitcoin_1signature_12(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 64);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 64, ChannelAnnouncement_get_bitcoin_signature_2(&this_ptr_conv).compact_form);
        return ret_arr;
@@ -35751,9 +34204,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelAnnouncement_1ge
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelAnnouncement_1set_1bitcoin_1signature_12(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKChannelAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKSignature val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 64);
        (*env)->GetByteArrayRegion(env, val, 0, 64, val_ref.compact_form);
@@ -35762,29 +34216,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelAnnouncement_1set_1bitc
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelAnnouncement_1get_1contents(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKUnsignedChannelAnnouncement ret_var = ChannelAnnouncement_get_contents(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelAnnouncement_1set_1contents(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelAnnouncement this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKUnsignedChannelAnnouncement val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = UnsignedChannelAnnouncement_clone(&val_conv);
        ChannelAnnouncement_set_contents(&this_ptr_conv, val_conv);
@@ -35804,73 +34255,61 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelAnnouncement_1new(JN
        CHECK((*env)->GetArrayLength(env, bitcoin_signature_2_arg) == 64);
        (*env)->GetByteArrayRegion(env, bitcoin_signature_2_arg, 0, 64, bitcoin_signature_2_arg_ref.compact_form);
        LDKUnsignedChannelAnnouncement contents_arg_conv;
-       contents_arg_conv.inner = (void*)(contents_arg & (~1));
-       contents_arg_conv.is_owned = (contents_arg & 1) || (contents_arg == 0);
+       contents_arg_conv.inner = untag_ptr(contents_arg);
+       contents_arg_conv.is_owned = ptr_is_owned(contents_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(contents_arg_conv);
        contents_arg_conv = UnsignedChannelAnnouncement_clone(&contents_arg_conv);
        LDKChannelAnnouncement ret_var = ChannelAnnouncement_new(node_signature_1_arg_ref, node_signature_2_arg_ref, bitcoin_signature_1_arg_ref, bitcoin_signature_2_arg_ref, contents_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t ChannelAnnouncement_clone_ptr(LDKChannelAnnouncement *NONNULL_PTR arg) {
+static inline uint64_t ChannelAnnouncement_clone_ptr(LDKChannelAnnouncement *NONNULL_PTR arg) {
        LDKChannelAnnouncement ret_var = ChannelAnnouncement_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelAnnouncement_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKChannelAnnouncement arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ChannelAnnouncement_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelAnnouncement_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKChannelAnnouncement orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKChannelAnnouncement ret_var = ChannelAnnouncement_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKUnsignedChannelUpdate this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        UnsignedChannelUpdate_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1get_1chain_1hash(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUnsignedChannelUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *UnsignedChannelUpdate_get_chain_hash(&this_ptr_conv));
        return ret_arr;
@@ -35878,9 +34317,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1set_1chain_1hash(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKUnsignedChannelUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -35889,145 +34329,162 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1set_1ch
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1get_1short_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUnsignedChannelUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = UnsignedChannelUpdate_get_short_channel_id(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1set_1short_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKUnsignedChannelUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        UnsignedChannelUpdate_set_short_channel_id(&this_ptr_conv, val);
 }
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1get_1timestamp(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUnsignedChannelUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = UnsignedChannelUpdate_get_timestamp(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1set_1timestamp(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKUnsignedChannelUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        UnsignedChannelUpdate_set_timestamp(&this_ptr_conv, val);
 }
 
 JNIEXPORT int8_t JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1get_1flags(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUnsignedChannelUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_t ret_conv = UnsignedChannelUpdate_get_flags(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1set_1flags(JNIEnv *env, jclass clz, int64_t this_ptr, int8_t val) {
        LDKUnsignedChannelUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        UnsignedChannelUpdate_set_flags(&this_ptr_conv, val);
 }
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1get_1cltv_1expiry_1delta(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUnsignedChannelUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int16_t ret_conv = UnsignedChannelUpdate_get_cltv_expiry_delta(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1set_1cltv_1expiry_1delta(JNIEnv *env, jclass clz, int64_t this_ptr, int16_t val) {
        LDKUnsignedChannelUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        UnsignedChannelUpdate_set_cltv_expiry_delta(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1get_1htlc_1minimum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUnsignedChannelUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = UnsignedChannelUpdate_get_htlc_minimum_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1set_1htlc_1minimum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKUnsignedChannelUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        UnsignedChannelUpdate_set_htlc_minimum_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1get_1htlc_1maximum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUnsignedChannelUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = UnsignedChannelUpdate_get_htlc_maximum_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1set_1htlc_1maximum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKUnsignedChannelUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        UnsignedChannelUpdate_set_htlc_maximum_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1get_1fee_1base_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUnsignedChannelUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = UnsignedChannelUpdate_get_fee_base_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1set_1fee_1base_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKUnsignedChannelUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        UnsignedChannelUpdate_set_fee_base_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1get_1fee_1proportional_1millionths(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUnsignedChannelUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = UnsignedChannelUpdate_get_fee_proportional_millionths(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1set_1fee_1proportional_1millionths(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKUnsignedChannelUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        UnsignedChannelUpdate_set_fee_proportional_millionths(&this_ptr_conv, val);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1get_1excess_1data(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKUnsignedChannelUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_u8Z ret_var = UnsignedChannelUpdate_get_excess_data(&this_ptr_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -36037,9 +34494,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1set_1excess_1data(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKUnsignedChannelUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_u8Z val_ref;
        val_ref.datalen = (*env)->GetArrayLength(env, val);
        val_ref.data = MALLOC(val_ref.datalen, "LDKCVec_u8Z Bytes");
@@ -36057,67 +34515,55 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1new(
        (*env)->GetByteArrayRegion(env, excess_data_arg, 0, excess_data_arg_ref.datalen, excess_data_arg_ref.data);
        LDKUnsignedChannelUpdate ret_var = UnsignedChannelUpdate_new(chain_hash_arg_ref, short_channel_id_arg, timestamp_arg, flags_arg, cltv_expiry_delta_arg, htlc_minimum_msat_arg, htlc_maximum_msat_arg, fee_base_msat_arg, fee_proportional_millionths_arg, excess_data_arg_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t UnsignedChannelUpdate_clone_ptr(LDKUnsignedChannelUpdate *NONNULL_PTR arg) {
+static inline uint64_t UnsignedChannelUpdate_clone_ptr(LDKUnsignedChannelUpdate *NONNULL_PTR arg) {
        LDKUnsignedChannelUpdate ret_var = UnsignedChannelUpdate_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKUnsignedChannelUpdate arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = UnsignedChannelUpdate_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKUnsignedChannelUpdate orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKUnsignedChannelUpdate ret_var = UnsignedChannelUpdate_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelUpdate_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKChannelUpdate this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ChannelUpdate_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelUpdate_1get_1signature(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 64);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 64, ChannelUpdate_get_signature(&this_ptr_conv).compact_form);
        return ret_arr;
@@ -36125,9 +34571,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelUpdate_1get_1sig
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelUpdate_1set_1signature(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKChannelUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKSignature val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 64);
        (*env)->GetByteArrayRegion(env, val, 0, 64, val_ref.compact_form);
@@ -36136,29 +34583,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelUpdate_1set_1signature(
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelUpdate_1get_1contents(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKUnsignedChannelUpdate ret_var = ChannelUpdate_get_contents(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelUpdate_1set_1contents(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKUnsignedChannelUpdate val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = UnsignedChannelUpdate_clone(&val_conv);
        ChannelUpdate_set_contents(&this_ptr_conv, val_conv);
@@ -36169,73 +34613,61 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelUpdate_1new(JNIEnv *
        CHECK((*env)->GetArrayLength(env, signature_arg) == 64);
        (*env)->GetByteArrayRegion(env, signature_arg, 0, 64, signature_arg_ref.compact_form);
        LDKUnsignedChannelUpdate contents_arg_conv;
-       contents_arg_conv.inner = (void*)(contents_arg & (~1));
-       contents_arg_conv.is_owned = (contents_arg & 1) || (contents_arg == 0);
+       contents_arg_conv.inner = untag_ptr(contents_arg);
+       contents_arg_conv.is_owned = ptr_is_owned(contents_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(contents_arg_conv);
        contents_arg_conv = UnsignedChannelUpdate_clone(&contents_arg_conv);
        LDKChannelUpdate ret_var = ChannelUpdate_new(signature_arg_ref, contents_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t ChannelUpdate_clone_ptr(LDKChannelUpdate *NONNULL_PTR arg) {
+static inline uint64_t ChannelUpdate_clone_ptr(LDKChannelUpdate *NONNULL_PTR arg) {
        LDKChannelUpdate ret_var = ChannelUpdate_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelUpdate_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKChannelUpdate arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ChannelUpdate_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelUpdate_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKChannelUpdate orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKChannelUpdate ret_var = ChannelUpdate_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_QueryChannelRange_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKQueryChannelRange this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        QueryChannelRange_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_QueryChannelRange_1get_1chain_1hash(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKQueryChannelRange this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *QueryChannelRange_get_chain_hash(&this_ptr_conv));
        return ret_arr;
@@ -36243,9 +34675,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_QueryChannelRange_1get_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_QueryChannelRange_1set_1chain_1hash(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKQueryChannelRange this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -36254,35 +34687,39 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_QueryChannelRange_1set_1chain_
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_QueryChannelRange_1get_1first_1blocknum(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKQueryChannelRange this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = QueryChannelRange_get_first_blocknum(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_QueryChannelRange_1set_1first_1blocknum(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKQueryChannelRange this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        QueryChannelRange_set_first_blocknum(&this_ptr_conv, val);
 }
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_QueryChannelRange_1get_1number_1of_1blocks(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKQueryChannelRange this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = QueryChannelRange_get_number_of_blocks(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_QueryChannelRange_1set_1number_1of_1blocks(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKQueryChannelRange this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        QueryChannelRange_set_number_of_blocks(&this_ptr_conv, val);
 }
 
@@ -36292,67 +34729,55 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_QueryChannelRange_1new(JNIE
        (*env)->GetByteArrayRegion(env, chain_hash_arg, 0, 32, chain_hash_arg_ref.data);
        LDKQueryChannelRange ret_var = QueryChannelRange_new(chain_hash_arg_ref, first_blocknum_arg, number_of_blocks_arg);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t QueryChannelRange_clone_ptr(LDKQueryChannelRange *NONNULL_PTR arg) {
+static inline uint64_t QueryChannelRange_clone_ptr(LDKQueryChannelRange *NONNULL_PTR arg) {
        LDKQueryChannelRange ret_var = QueryChannelRange_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_QueryChannelRange_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKQueryChannelRange arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = QueryChannelRange_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_QueryChannelRange_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKQueryChannelRange orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKQueryChannelRange ret_var = QueryChannelRange_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ReplyChannelRange_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKReplyChannelRange this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ReplyChannelRange_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ReplyChannelRange_1get_1chain_1hash(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKReplyChannelRange this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *ReplyChannelRange_get_chain_hash(&this_ptr_conv));
        return ret_arr;
@@ -36360,9 +34785,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ReplyChannelRange_1get_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ReplyChannelRange_1set_1chain_1hash(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKReplyChannelRange this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -36371,60 +34797,67 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ReplyChannelRange_1set_1chain_
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_ReplyChannelRange_1get_1first_1blocknum(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKReplyChannelRange this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = ReplyChannelRange_get_first_blocknum(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ReplyChannelRange_1set_1first_1blocknum(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKReplyChannelRange this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ReplyChannelRange_set_first_blocknum(&this_ptr_conv, val);
 }
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_ReplyChannelRange_1get_1number_1of_1blocks(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKReplyChannelRange this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = ReplyChannelRange_get_number_of_blocks(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ReplyChannelRange_1set_1number_1of_1blocks(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKReplyChannelRange this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ReplyChannelRange_set_number_of_blocks(&this_ptr_conv, val);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ReplyChannelRange_1get_1sync_1complete(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKReplyChannelRange this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        jboolean ret_conv = ReplyChannelRange_get_sync_complete(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ReplyChannelRange_1set_1sync_1complete(JNIEnv *env, jclass clz, int64_t this_ptr, jboolean val) {
        LDKReplyChannelRange this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ReplyChannelRange_set_sync_complete(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ReplyChannelRange_1get_1short_1channel_1ids(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKReplyChannelRange this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_u64Z ret_var = ReplyChannelRange_get_short_channel_ids(&this_ptr_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -36440,9 +34873,10 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ReplyChannelRange_1get
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ReplyChannelRange_1set_1short_1channel_1ids(JNIEnv *env, jclass clz, int64_t this_ptr, int64_tArray val) {
        LDKReplyChannelRange this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_u64Z val_constr;
        val_constr.datalen = (*env)->GetArrayLength(env, val);
        if (val_constr.datalen > 0)
@@ -36476,67 +34910,55 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ReplyChannelRange_1new(JNIE
        (*env)->ReleaseLongArrayElements(env, short_channel_ids_arg, short_channel_ids_arg_vals, 0);
        LDKReplyChannelRange ret_var = ReplyChannelRange_new(chain_hash_arg_ref, first_blocknum_arg, number_of_blocks_arg, sync_complete_arg, short_channel_ids_arg_constr);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t ReplyChannelRange_clone_ptr(LDKReplyChannelRange *NONNULL_PTR arg) {
+static inline uint64_t ReplyChannelRange_clone_ptr(LDKReplyChannelRange *NONNULL_PTR arg) {
        LDKReplyChannelRange ret_var = ReplyChannelRange_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ReplyChannelRange_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKReplyChannelRange arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ReplyChannelRange_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ReplyChannelRange_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKReplyChannelRange orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKReplyChannelRange ret_var = ReplyChannelRange_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_QueryShortChannelIds_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKQueryShortChannelIds this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        QueryShortChannelIds_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_QueryShortChannelIds_1get_1chain_1hash(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKQueryShortChannelIds this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *QueryShortChannelIds_get_chain_hash(&this_ptr_conv));
        return ret_arr;
@@ -36544,9 +34966,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_QueryShortChannelIds_1g
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_QueryShortChannelIds_1set_1chain_1hash(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKQueryShortChannelIds this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -36555,9 +34978,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_QueryShortChannelIds_1set_1cha
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_QueryShortChannelIds_1get_1short_1channel_1ids(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKQueryShortChannelIds this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_u64Z ret_var = QueryShortChannelIds_get_short_channel_ids(&this_ptr_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -36573,9 +34997,10 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_QueryShortChannelIds_1
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_QueryShortChannelIds_1set_1short_1channel_1ids(JNIEnv *env, jclass clz, int64_t this_ptr, int64_tArray val) {
        LDKQueryShortChannelIds this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_u64Z val_constr;
        val_constr.datalen = (*env)->GetArrayLength(env, val);
        if (val_constr.datalen > 0)
@@ -36609,67 +35034,55 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_QueryShortChannelIds_1new(J
        (*env)->ReleaseLongArrayElements(env, short_channel_ids_arg, short_channel_ids_arg_vals, 0);
        LDKQueryShortChannelIds ret_var = QueryShortChannelIds_new(chain_hash_arg_ref, short_channel_ids_arg_constr);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t QueryShortChannelIds_clone_ptr(LDKQueryShortChannelIds *NONNULL_PTR arg) {
+static inline uint64_t QueryShortChannelIds_clone_ptr(LDKQueryShortChannelIds *NONNULL_PTR arg) {
        LDKQueryShortChannelIds ret_var = QueryShortChannelIds_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_QueryShortChannelIds_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKQueryShortChannelIds arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = QueryShortChannelIds_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_QueryShortChannelIds_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKQueryShortChannelIds orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKQueryShortChannelIds ret_var = QueryShortChannelIds_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ReplyShortChannelIdsEnd_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKReplyShortChannelIdsEnd this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ReplyShortChannelIdsEnd_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ReplyShortChannelIdsEnd_1get_1chain_1hash(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKReplyShortChannelIdsEnd this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *ReplyShortChannelIdsEnd_get_chain_hash(&this_ptr_conv));
        return ret_arr;
@@ -36677,9 +35090,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ReplyShortChannelIdsEnd
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ReplyShortChannelIdsEnd_1set_1chain_1hash(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKReplyShortChannelIdsEnd this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -36688,18 +35102,20 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ReplyShortChannelIdsEnd_1set_1
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ReplyShortChannelIdsEnd_1get_1full_1information(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKReplyShortChannelIdsEnd this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        jboolean ret_conv = ReplyShortChannelIdsEnd_get_full_information(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ReplyShortChannelIdsEnd_1set_1full_1information(JNIEnv *env, jclass clz, int64_t this_ptr, jboolean val) {
        LDKReplyShortChannelIdsEnd this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ReplyShortChannelIdsEnd_set_full_information(&this_ptr_conv, val);
 }
 
@@ -36709,67 +35125,55 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ReplyShortChannelIdsEnd_1ne
        (*env)->GetByteArrayRegion(env, chain_hash_arg, 0, 32, chain_hash_arg_ref.data);
        LDKReplyShortChannelIdsEnd ret_var = ReplyShortChannelIdsEnd_new(chain_hash_arg_ref, full_information_arg);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t ReplyShortChannelIdsEnd_clone_ptr(LDKReplyShortChannelIdsEnd *NONNULL_PTR arg) {
+static inline uint64_t ReplyShortChannelIdsEnd_clone_ptr(LDKReplyShortChannelIdsEnd *NONNULL_PTR arg) {
        LDKReplyShortChannelIdsEnd ret_var = ReplyShortChannelIdsEnd_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ReplyShortChannelIdsEnd_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKReplyShortChannelIdsEnd arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ReplyShortChannelIdsEnd_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ReplyShortChannelIdsEnd_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKReplyShortChannelIdsEnd orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKReplyShortChannelIdsEnd ret_var = ReplyShortChannelIdsEnd_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_GossipTimestampFilter_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKGossipTimestampFilter this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        GossipTimestampFilter_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_GossipTimestampFilter_1get_1chain_1hash(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKGossipTimestampFilter this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *GossipTimestampFilter_get_chain_hash(&this_ptr_conv));
        return ret_arr;
@@ -36777,9 +35181,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_GossipTimestampFilter_1
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_GossipTimestampFilter_1set_1chain_1hash(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKGossipTimestampFilter this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -36788,35 +35193,39 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_GossipTimestampFilter_1set_1ch
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_GossipTimestampFilter_1get_1first_1timestamp(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKGossipTimestampFilter this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = GossipTimestampFilter_get_first_timestamp(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_GossipTimestampFilter_1set_1first_1timestamp(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKGossipTimestampFilter this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        GossipTimestampFilter_set_first_timestamp(&this_ptr_conv, val);
 }
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_GossipTimestampFilter_1get_1timestamp_1range(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKGossipTimestampFilter this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = GossipTimestampFilter_get_timestamp_range(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_GossipTimestampFilter_1set_1timestamp_1range(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKGossipTimestampFilter this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        GossipTimestampFilter_set_timestamp_range(&this_ptr_conv, val);
 }
 
@@ -36826,99 +35235,86 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_GossipTimestampFilter_1new(
        (*env)->GetByteArrayRegion(env, chain_hash_arg, 0, 32, chain_hash_arg_ref.data);
        LDKGossipTimestampFilter ret_var = GossipTimestampFilter_new(chain_hash_arg_ref, first_timestamp_arg, timestamp_range_arg);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t GossipTimestampFilter_clone_ptr(LDKGossipTimestampFilter *NONNULL_PTR arg) {
+static inline uint64_t GossipTimestampFilter_clone_ptr(LDKGossipTimestampFilter *NONNULL_PTR arg) {
        LDKGossipTimestampFilter ret_var = GossipTimestampFilter_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_GossipTimestampFilter_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKGossipTimestampFilter arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = GossipTimestampFilter_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_GossipTimestampFilter_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKGossipTimestampFilter orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKGossipTimestampFilter ret_var = GossipTimestampFilter_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ErrorAction_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKErrorAction this_ptr_conv = *(LDKErrorAction*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        ErrorAction_free(this_ptr_conv);
 }
 
-static inline uintptr_t ErrorAction_clone_ptr(LDKErrorAction *NONNULL_PTR arg) {
+static inline uint64_t ErrorAction_clone_ptr(LDKErrorAction *NONNULL_PTR arg) {
        LDKErrorAction *ret_copy = MALLOC(sizeof(LDKErrorAction), "LDKErrorAction");
        *ret_copy = ErrorAction_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ErrorAction_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKErrorAction* arg_conv = (LDKErrorAction*)arg;
+       LDKErrorAction* arg_conv = (LDKErrorAction*)untag_ptr(arg);
        int64_t ret_conv = ErrorAction_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ErrorAction_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKErrorAction* orig_conv = (LDKErrorAction*)orig;
+       LDKErrorAction* orig_conv = (LDKErrorAction*)untag_ptr(orig);
        LDKErrorAction *ret_copy = MALLOC(sizeof(LDKErrorAction), "LDKErrorAction");
        *ret_copy = ErrorAction_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ErrorAction_1disconnect_1peer(JNIEnv *env, jclass clz, int64_t msg) {
        LDKErrorMessage msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = ErrorMessage_clone(&msg_conv);
        LDKErrorAction *ret_copy = MALLOC(sizeof(LDKErrorAction), "LDKErrorAction");
        *ret_copy = ErrorAction_disconnect_peer(msg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ErrorAction_1ignore_1error(JNIEnv *env, jclass clz) {
        LDKErrorAction *ret_copy = MALLOC(sizeof(LDKErrorAction), "LDKErrorAction");
        *ret_copy = ErrorAction_ignore_error();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -36926,55 +35322,56 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ErrorAction_1ignore_1and_1l
        LDKLevel a_conv = LDKLevel_from_java(env, a);
        LDKErrorAction *ret_copy = MALLOC(sizeof(LDKErrorAction), "LDKErrorAction");
        *ret_copy = ErrorAction_ignore_and_log(a_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ErrorAction_1ignore_1duplicate_1gossip(JNIEnv *env, jclass clz) {
        LDKErrorAction *ret_copy = MALLOC(sizeof(LDKErrorAction), "LDKErrorAction");
        *ret_copy = ErrorAction_ignore_duplicate_gossip();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ErrorAction_1send_1error_1message(JNIEnv *env, jclass clz, int64_t msg) {
        LDKErrorMessage msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = ErrorMessage_clone(&msg_conv);
        LDKErrorAction *ret_copy = MALLOC(sizeof(LDKErrorAction), "LDKErrorAction");
        *ret_copy = ErrorAction_send_error_message(msg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ErrorAction_1send_1warning_1message(JNIEnv *env, jclass clz, int64_t msg, jclass log_level) {
        LDKWarningMessage msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = WarningMessage_clone(&msg_conv);
        LDKLevel log_level_conv = LDKLevel_from_java(env, log_level);
        LDKErrorAction *ret_copy = MALLOC(sizeof(LDKErrorAction), "LDKErrorAction");
        *ret_copy = ErrorAction_send_warning_message(msg_conv, log_level_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_LightningError_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKLightningError this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        LightningError_free(this_obj_conv);
 }
 
 JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_LightningError_1get_1err(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKLightningError this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKStr ret_str = LightningError_get_err(&this_ptr_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
        Str_free(ret_str);
@@ -36983,105 +35380,96 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_LightningError_1get_1err(JN
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_LightningError_1set_1err(JNIEnv *env, jclass clz, int64_t this_ptr, jstring val) {
        LDKLightningError this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKStr val_conv = java_to_owned_str(env, val);
        LightningError_set_err(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LightningError_1get_1action(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKLightningError this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKErrorAction *ret_copy = MALLOC(sizeof(LDKErrorAction), "LDKErrorAction");
        *ret_copy = LightningError_get_action(&this_ptr_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_LightningError_1set_1action(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKLightningError this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKErrorAction val_conv = *(LDKErrorAction*)(val_ptr);
-       val_conv = ErrorAction_clone((LDKErrorAction*)(((uintptr_t)val) & ~1));
+       val_conv = ErrorAction_clone((LDKErrorAction*)untag_ptr(val));
        LightningError_set_action(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LightningError_1new(JNIEnv *env, jclass clz, jstring err_arg, int64_t action_arg) {
        LDKStr err_arg_conv = java_to_owned_str(env, err_arg);
-       void* action_arg_ptr = (void*)(((uintptr_t)action_arg) & ~1);
+       void* action_arg_ptr = untag_ptr(action_arg);
        CHECK_ACCESS(action_arg_ptr);
        LDKErrorAction action_arg_conv = *(LDKErrorAction*)(action_arg_ptr);
-       action_arg_conv = ErrorAction_clone((LDKErrorAction*)(((uintptr_t)action_arg) & ~1));
+       action_arg_conv = ErrorAction_clone((LDKErrorAction*)untag_ptr(action_arg));
        LDKLightningError ret_var = LightningError_new(err_arg_conv, action_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t LightningError_clone_ptr(LDKLightningError *NONNULL_PTR arg) {
+static inline uint64_t LightningError_clone_ptr(LDKLightningError *NONNULL_PTR arg) {
        LDKLightningError ret_var = LightningError_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LightningError_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKLightningError arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = LightningError_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LightningError_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKLightningError orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKLightningError ret_var = LightningError_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKCommitmentUpdate this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        CommitmentUpdate_free(this_obj_conv);
 }
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1get_1update_1add_1htlcs(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKCommitmentUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_UpdateAddHTLCZ ret_var = CommitmentUpdate_get_update_add_htlcs(&this_ptr_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -37089,13 +35477,8 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1get_
        for (size_t p = 0; p < ret_var.datalen; p++) {
                LDKUpdateAddHTLC ret_conv_15_var = ret_var.data[p];
                int64_t ret_conv_15_ref = 0;
-               CHECK((((uintptr_t)ret_conv_15_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_conv_15_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_15_var);
-               ret_conv_15_ref = (uintptr_t)ret_conv_15_var.inner;
-               if (ret_conv_15_var.is_owned) {
-                       ret_conv_15_ref |= 1;
-               }
+               ret_conv_15_ref = tag_ptr(ret_conv_15_var.inner, ret_conv_15_var.is_owned);
                ret_arr_ptr[p] = ret_conv_15_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
@@ -37105,9 +35488,10 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1get_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1set_1update_1add_1htlcs(JNIEnv *env, jclass clz, int64_t this_ptr, int64_tArray val) {
        LDKCommitmentUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_UpdateAddHTLCZ val_constr;
        val_constr.datalen = (*env)->GetArrayLength(env, val);
        if (val_constr.datalen > 0)
@@ -37118,8 +35502,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1set_1update_
        for (size_t p = 0; p < val_constr.datalen; p++) {
                int64_t val_conv_15 = val_vals[p];
                LDKUpdateAddHTLC val_conv_15_conv;
-               val_conv_15_conv.inner = (void*)(val_conv_15 & (~1));
-               val_conv_15_conv.is_owned = (val_conv_15 & 1) || (val_conv_15 == 0);
+               val_conv_15_conv.inner = untag_ptr(val_conv_15);
+               val_conv_15_conv.is_owned = ptr_is_owned(val_conv_15);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv_15_conv);
                val_conv_15_conv = UpdateAddHTLC_clone(&val_conv_15_conv);
                val_constr.data[p] = val_conv_15_conv;
@@ -37130,9 +35514,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1set_1update_
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1get_1update_1fulfill_1htlcs(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKCommitmentUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_UpdateFulfillHTLCZ ret_var = CommitmentUpdate_get_update_fulfill_htlcs(&this_ptr_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -37140,13 +35525,8 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1get_
        for (size_t t = 0; t < ret_var.datalen; t++) {
                LDKUpdateFulfillHTLC ret_conv_19_var = ret_var.data[t];
                int64_t ret_conv_19_ref = 0;
-               CHECK((((uintptr_t)ret_conv_19_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_conv_19_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_19_var);
-               ret_conv_19_ref = (uintptr_t)ret_conv_19_var.inner;
-               if (ret_conv_19_var.is_owned) {
-                       ret_conv_19_ref |= 1;
-               }
+               ret_conv_19_ref = tag_ptr(ret_conv_19_var.inner, ret_conv_19_var.is_owned);
                ret_arr_ptr[t] = ret_conv_19_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
@@ -37156,9 +35536,10 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1get_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1set_1update_1fulfill_1htlcs(JNIEnv *env, jclass clz, int64_t this_ptr, int64_tArray val) {
        LDKCommitmentUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_UpdateFulfillHTLCZ val_constr;
        val_constr.datalen = (*env)->GetArrayLength(env, val);
        if (val_constr.datalen > 0)
@@ -37169,8 +35550,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1set_1update_
        for (size_t t = 0; t < val_constr.datalen; t++) {
                int64_t val_conv_19 = val_vals[t];
                LDKUpdateFulfillHTLC val_conv_19_conv;
-               val_conv_19_conv.inner = (void*)(val_conv_19 & (~1));
-               val_conv_19_conv.is_owned = (val_conv_19 & 1) || (val_conv_19 == 0);
+               val_conv_19_conv.inner = untag_ptr(val_conv_19);
+               val_conv_19_conv.is_owned = ptr_is_owned(val_conv_19);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv_19_conv);
                val_conv_19_conv = UpdateFulfillHTLC_clone(&val_conv_19_conv);
                val_constr.data[t] = val_conv_19_conv;
@@ -37181,9 +35562,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1set_1update_
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1get_1update_1fail_1htlcs(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKCommitmentUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_UpdateFailHTLCZ ret_var = CommitmentUpdate_get_update_fail_htlcs(&this_ptr_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -37191,13 +35573,8 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1get_
        for (size_t q = 0; q < ret_var.datalen; q++) {
                LDKUpdateFailHTLC ret_conv_16_var = ret_var.data[q];
                int64_t ret_conv_16_ref = 0;
-               CHECK((((uintptr_t)ret_conv_16_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_conv_16_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_16_var);
-               ret_conv_16_ref = (uintptr_t)ret_conv_16_var.inner;
-               if (ret_conv_16_var.is_owned) {
-                       ret_conv_16_ref |= 1;
-               }
+               ret_conv_16_ref = tag_ptr(ret_conv_16_var.inner, ret_conv_16_var.is_owned);
                ret_arr_ptr[q] = ret_conv_16_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
@@ -37207,9 +35584,10 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1get_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1set_1update_1fail_1htlcs(JNIEnv *env, jclass clz, int64_t this_ptr, int64_tArray val) {
        LDKCommitmentUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_UpdateFailHTLCZ val_constr;
        val_constr.datalen = (*env)->GetArrayLength(env, val);
        if (val_constr.datalen > 0)
@@ -37220,8 +35598,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1set_1update_
        for (size_t q = 0; q < val_constr.datalen; q++) {
                int64_t val_conv_16 = val_vals[q];
                LDKUpdateFailHTLC val_conv_16_conv;
-               val_conv_16_conv.inner = (void*)(val_conv_16 & (~1));
-               val_conv_16_conv.is_owned = (val_conv_16 & 1) || (val_conv_16 == 0);
+               val_conv_16_conv.inner = untag_ptr(val_conv_16);
+               val_conv_16_conv.is_owned = ptr_is_owned(val_conv_16);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv_16_conv);
                val_conv_16_conv = UpdateFailHTLC_clone(&val_conv_16_conv);
                val_constr.data[q] = val_conv_16_conv;
@@ -37232,9 +35610,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1set_1update_
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1get_1update_1fail_1malformed_1htlcs(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKCommitmentUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_UpdateFailMalformedHTLCZ ret_var = CommitmentUpdate_get_update_fail_malformed_htlcs(&this_ptr_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -37242,13 +35621,8 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1get_
        for (size_t z = 0; z < ret_var.datalen; z++) {
                LDKUpdateFailMalformedHTLC ret_conv_25_var = ret_var.data[z];
                int64_t ret_conv_25_ref = 0;
-               CHECK((((uintptr_t)ret_conv_25_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_conv_25_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_25_var);
-               ret_conv_25_ref = (uintptr_t)ret_conv_25_var.inner;
-               if (ret_conv_25_var.is_owned) {
-                       ret_conv_25_ref |= 1;
-               }
+               ret_conv_25_ref = tag_ptr(ret_conv_25_var.inner, ret_conv_25_var.is_owned);
                ret_arr_ptr[z] = ret_conv_25_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
@@ -37258,9 +35632,10 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1get_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1set_1update_1fail_1malformed_1htlcs(JNIEnv *env, jclass clz, int64_t this_ptr, int64_tArray val) {
        LDKCommitmentUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_UpdateFailMalformedHTLCZ val_constr;
        val_constr.datalen = (*env)->GetArrayLength(env, val);
        if (val_constr.datalen > 0)
@@ -37271,8 +35646,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1set_1update_
        for (size_t z = 0; z < val_constr.datalen; z++) {
                int64_t val_conv_25 = val_vals[z];
                LDKUpdateFailMalformedHTLC val_conv_25_conv;
-               val_conv_25_conv.inner = (void*)(val_conv_25 & (~1));
-               val_conv_25_conv.is_owned = (val_conv_25 & 1) || (val_conv_25 == 0);
+               val_conv_25_conv.inner = untag_ptr(val_conv_25);
+               val_conv_25_conv.is_owned = ptr_is_owned(val_conv_25);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv_25_conv);
                val_conv_25_conv = UpdateFailMalformedHTLC_clone(&val_conv_25_conv);
                val_constr.data[z] = val_conv_25_conv;
@@ -37283,31 +35658,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1set_1update_
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1get_1update_1fee(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKCommitmentUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKUpdateFee ret_var = CommitmentUpdate_get_update_fee(&this_ptr_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1set_1update_1fee(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKCommitmentUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKUpdateFee val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = UpdateFee_clone(&val_conv);
        CommitmentUpdate_set_update_fee(&this_ptr_conv, val_conv);
@@ -37315,29 +35685,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1set_1update_
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1get_1commitment_1signed(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKCommitmentUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCommitmentSigned ret_var = CommitmentUpdate_get_commitment_signed(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1set_1commitment_1signed(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKCommitmentUpdate this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCommitmentSigned val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = CommitmentSigned_clone(&val_conv);
        CommitmentUpdate_set_commitment_signed(&this_ptr_conv, val_conv);
@@ -37354,8 +35721,8 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1new(JNIEn
        for (size_t p = 0; p < update_add_htlcs_arg_constr.datalen; p++) {
                int64_t update_add_htlcs_arg_conv_15 = update_add_htlcs_arg_vals[p];
                LDKUpdateAddHTLC update_add_htlcs_arg_conv_15_conv;
-               update_add_htlcs_arg_conv_15_conv.inner = (void*)(update_add_htlcs_arg_conv_15 & (~1));
-               update_add_htlcs_arg_conv_15_conv.is_owned = (update_add_htlcs_arg_conv_15 & 1) || (update_add_htlcs_arg_conv_15 == 0);
+               update_add_htlcs_arg_conv_15_conv.inner = untag_ptr(update_add_htlcs_arg_conv_15);
+               update_add_htlcs_arg_conv_15_conv.is_owned = ptr_is_owned(update_add_htlcs_arg_conv_15);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(update_add_htlcs_arg_conv_15_conv);
                update_add_htlcs_arg_conv_15_conv = UpdateAddHTLC_clone(&update_add_htlcs_arg_conv_15_conv);
                update_add_htlcs_arg_constr.data[p] = update_add_htlcs_arg_conv_15_conv;
@@ -37371,8 +35738,8 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1new(JNIEn
        for (size_t t = 0; t < update_fulfill_htlcs_arg_constr.datalen; t++) {
                int64_t update_fulfill_htlcs_arg_conv_19 = update_fulfill_htlcs_arg_vals[t];
                LDKUpdateFulfillHTLC update_fulfill_htlcs_arg_conv_19_conv;
-               update_fulfill_htlcs_arg_conv_19_conv.inner = (void*)(update_fulfill_htlcs_arg_conv_19 & (~1));
-               update_fulfill_htlcs_arg_conv_19_conv.is_owned = (update_fulfill_htlcs_arg_conv_19 & 1) || (update_fulfill_htlcs_arg_conv_19 == 0);
+               update_fulfill_htlcs_arg_conv_19_conv.inner = untag_ptr(update_fulfill_htlcs_arg_conv_19);
+               update_fulfill_htlcs_arg_conv_19_conv.is_owned = ptr_is_owned(update_fulfill_htlcs_arg_conv_19);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(update_fulfill_htlcs_arg_conv_19_conv);
                update_fulfill_htlcs_arg_conv_19_conv = UpdateFulfillHTLC_clone(&update_fulfill_htlcs_arg_conv_19_conv);
                update_fulfill_htlcs_arg_constr.data[t] = update_fulfill_htlcs_arg_conv_19_conv;
@@ -37388,8 +35755,8 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1new(JNIEn
        for (size_t q = 0; q < update_fail_htlcs_arg_constr.datalen; q++) {
                int64_t update_fail_htlcs_arg_conv_16 = update_fail_htlcs_arg_vals[q];
                LDKUpdateFailHTLC update_fail_htlcs_arg_conv_16_conv;
-               update_fail_htlcs_arg_conv_16_conv.inner = (void*)(update_fail_htlcs_arg_conv_16 & (~1));
-               update_fail_htlcs_arg_conv_16_conv.is_owned = (update_fail_htlcs_arg_conv_16 & 1) || (update_fail_htlcs_arg_conv_16 == 0);
+               update_fail_htlcs_arg_conv_16_conv.inner = untag_ptr(update_fail_htlcs_arg_conv_16);
+               update_fail_htlcs_arg_conv_16_conv.is_owned = ptr_is_owned(update_fail_htlcs_arg_conv_16);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(update_fail_htlcs_arg_conv_16_conv);
                update_fail_htlcs_arg_conv_16_conv = UpdateFailHTLC_clone(&update_fail_htlcs_arg_conv_16_conv);
                update_fail_htlcs_arg_constr.data[q] = update_fail_htlcs_arg_conv_16_conv;
@@ -37405,96 +35772,84 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1new(JNIEn
        for (size_t z = 0; z < update_fail_malformed_htlcs_arg_constr.datalen; z++) {
                int64_t update_fail_malformed_htlcs_arg_conv_25 = update_fail_malformed_htlcs_arg_vals[z];
                LDKUpdateFailMalformedHTLC update_fail_malformed_htlcs_arg_conv_25_conv;
-               update_fail_malformed_htlcs_arg_conv_25_conv.inner = (void*)(update_fail_malformed_htlcs_arg_conv_25 & (~1));
-               update_fail_malformed_htlcs_arg_conv_25_conv.is_owned = (update_fail_malformed_htlcs_arg_conv_25 & 1) || (update_fail_malformed_htlcs_arg_conv_25 == 0);
+               update_fail_malformed_htlcs_arg_conv_25_conv.inner = untag_ptr(update_fail_malformed_htlcs_arg_conv_25);
+               update_fail_malformed_htlcs_arg_conv_25_conv.is_owned = ptr_is_owned(update_fail_malformed_htlcs_arg_conv_25);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(update_fail_malformed_htlcs_arg_conv_25_conv);
                update_fail_malformed_htlcs_arg_conv_25_conv = UpdateFailMalformedHTLC_clone(&update_fail_malformed_htlcs_arg_conv_25_conv);
                update_fail_malformed_htlcs_arg_constr.data[z] = update_fail_malformed_htlcs_arg_conv_25_conv;
        }
        (*env)->ReleaseLongArrayElements(env, update_fail_malformed_htlcs_arg, update_fail_malformed_htlcs_arg_vals, 0);
        LDKUpdateFee update_fee_arg_conv;
-       update_fee_arg_conv.inner = (void*)(update_fee_arg & (~1));
-       update_fee_arg_conv.is_owned = (update_fee_arg & 1) || (update_fee_arg == 0);
+       update_fee_arg_conv.inner = untag_ptr(update_fee_arg);
+       update_fee_arg_conv.is_owned = ptr_is_owned(update_fee_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(update_fee_arg_conv);
        update_fee_arg_conv = UpdateFee_clone(&update_fee_arg_conv);
        LDKCommitmentSigned commitment_signed_arg_conv;
-       commitment_signed_arg_conv.inner = (void*)(commitment_signed_arg & (~1));
-       commitment_signed_arg_conv.is_owned = (commitment_signed_arg & 1) || (commitment_signed_arg == 0);
+       commitment_signed_arg_conv.inner = untag_ptr(commitment_signed_arg);
+       commitment_signed_arg_conv.is_owned = ptr_is_owned(commitment_signed_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(commitment_signed_arg_conv);
        commitment_signed_arg_conv = CommitmentSigned_clone(&commitment_signed_arg_conv);
        LDKCommitmentUpdate ret_var = CommitmentUpdate_new(update_add_htlcs_arg_constr, update_fulfill_htlcs_arg_constr, update_fail_htlcs_arg_constr, update_fail_malformed_htlcs_arg_constr, update_fee_arg_conv, commitment_signed_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t CommitmentUpdate_clone_ptr(LDKCommitmentUpdate *NONNULL_PTR arg) {
+static inline uint64_t CommitmentUpdate_clone_ptr(LDKCommitmentUpdate *NONNULL_PTR arg) {
        LDKCommitmentUpdate ret_var = CommitmentUpdate_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKCommitmentUpdate arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = CommitmentUpdate_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKCommitmentUpdate orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKCommitmentUpdate ret_var = CommitmentUpdate_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKChannelMessageHandler this_ptr_conv = *(LDKChannelMessageHandler*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        ChannelMessageHandler_free(this_ptr_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKRoutingMessageHandler this_ptr_conv = *(LDKRoutingMessageHandler*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        RoutingMessageHandler_free(this_ptr_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKAcceptChannel obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = AcceptChannel_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -37509,14 +35864,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_AcceptChannel_1read(JNIEnv
        LDKCResult_AcceptChannelDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_AcceptChannelDecodeErrorZ), "LDKCResult_AcceptChannelDecodeErrorZ");
        *ret_conv = AcceptChannel_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_AnnouncementSignatures_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKAnnouncementSignatures obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = AnnouncementSignatures_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -37531,14 +35887,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_AnnouncementSignatures_1rea
        LDKCResult_AnnouncementSignaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_AnnouncementSignaturesDecodeErrorZ), "LDKCResult_AnnouncementSignaturesDecodeErrorZ");
        *ret_conv = AnnouncementSignatures_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelReestablish_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKChannelReestablish obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = ChannelReestablish_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -37553,14 +35910,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelReestablish_1read(JN
        LDKCResult_ChannelReestablishDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelReestablishDecodeErrorZ), "LDKCResult_ChannelReestablishDecodeErrorZ");
        *ret_conv = ChannelReestablish_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ClosingSigned_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKClosingSigned obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = ClosingSigned_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -37575,14 +35933,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosingSigned_1read(JNIEnv
        LDKCResult_ClosingSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ClosingSignedDecodeErrorZ), "LDKCResult_ClosingSignedDecodeErrorZ");
        *ret_conv = ClosingSigned_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ClosingSignedFeeRange_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKClosingSignedFeeRange obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = ClosingSignedFeeRange_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -37597,14 +35956,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosingSignedFeeRange_1read
        LDKCResult_ClosingSignedFeeRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ClosingSignedFeeRangeDecodeErrorZ), "LDKCResult_ClosingSignedFeeRangeDecodeErrorZ");
        *ret_conv = ClosingSignedFeeRange_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_CommitmentSigned_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKCommitmentSigned obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = CommitmentSigned_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -37619,14 +35979,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CommitmentSigned_1read(JNIE
        LDKCResult_CommitmentSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CommitmentSignedDecodeErrorZ), "LDKCResult_CommitmentSignedDecodeErrorZ");
        *ret_conv = CommitmentSigned_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_FundingCreated_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKFundingCreated obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = FundingCreated_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -37641,14 +36002,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_FundingCreated_1read(JNIEnv
        LDKCResult_FundingCreatedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingCreatedDecodeErrorZ), "LDKCResult_FundingCreatedDecodeErrorZ");
        *ret_conv = FundingCreated_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_FundingSigned_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKFundingSigned obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = FundingSigned_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -37663,14 +36025,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_FundingSigned_1read(JNIEnv
        LDKCResult_FundingSignedDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FundingSignedDecodeErrorZ), "LDKCResult_FundingSignedDecodeErrorZ");
        *ret_conv = FundingSigned_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelReady_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKChannelReady obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = ChannelReady_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -37685,14 +36048,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelReady_1read(JNIEnv *
        LDKCResult_ChannelReadyDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelReadyDecodeErrorZ), "LDKCResult_ChannelReadyDecodeErrorZ");
        *ret_conv = ChannelReady_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Init_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKInit obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = Init_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -37707,14 +36071,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Init_1read(JNIEnv *env, jcl
        LDKCResult_InitDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InitDecodeErrorZ), "LDKCResult_InitDecodeErrorZ");
        *ret_conv = Init_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_OpenChannel_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKOpenChannel obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = OpenChannel_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -37729,14 +36094,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_OpenChannel_1read(JNIEnv *e
        LDKCResult_OpenChannelDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_OpenChannelDecodeErrorZ), "LDKCResult_OpenChannelDecodeErrorZ");
        *ret_conv = OpenChannel_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_RevokeAndACK_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKRevokeAndACK obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = RevokeAndACK_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -37751,14 +36117,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RevokeAndACK_1read(JNIEnv *
        LDKCResult_RevokeAndACKDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RevokeAndACKDecodeErrorZ), "LDKCResult_RevokeAndACKDecodeErrorZ");
        *ret_conv = RevokeAndACK_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Shutdown_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKShutdown obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = Shutdown_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -37773,14 +36140,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Shutdown_1read(JNIEnv *env,
        LDKCResult_ShutdownDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownDecodeErrorZ), "LDKCResult_ShutdownDecodeErrorZ");
        *ret_conv = Shutdown_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UpdateFailHTLC_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKUpdateFailHTLC obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = UpdateFailHTLC_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -37795,14 +36163,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UpdateFailHTLC_1read(JNIEnv
        LDKCResult_UpdateFailHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFailHTLCDecodeErrorZ), "LDKCResult_UpdateFailHTLCDecodeErrorZ");
        *ret_conv = UpdateFailHTLC_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UpdateFailMalformedHTLC_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKUpdateFailMalformedHTLC obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = UpdateFailMalformedHTLC_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -37817,14 +36186,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UpdateFailMalformedHTLC_1re
        LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ), "LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ");
        *ret_conv = UpdateFailMalformedHTLC_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UpdateFee_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKUpdateFee obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = UpdateFee_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -37839,14 +36209,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UpdateFee_1read(JNIEnv *env
        LDKCResult_UpdateFeeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFeeDecodeErrorZ), "LDKCResult_UpdateFeeDecodeErrorZ");
        *ret_conv = UpdateFee_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UpdateFulfillHTLC_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKUpdateFulfillHTLC obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = UpdateFulfillHTLC_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -37861,14 +36232,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UpdateFulfillHTLC_1read(JNI
        LDKCResult_UpdateFulfillHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateFulfillHTLCDecodeErrorZ), "LDKCResult_UpdateFulfillHTLCDecodeErrorZ");
        *ret_conv = UpdateFulfillHTLC_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UpdateAddHTLC_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKUpdateAddHTLC obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = UpdateAddHTLC_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -37883,14 +36255,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UpdateAddHTLC_1read(JNIEnv
        LDKCResult_UpdateAddHTLCDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UpdateAddHTLCDecodeErrorZ), "LDKCResult_UpdateAddHTLCDecodeErrorZ");
        *ret_conv = UpdateAddHTLC_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Ping_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKPing obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = Ping_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -37905,14 +36278,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Ping_1read(JNIEnv *env, jcl
        LDKCResult_PingDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PingDecodeErrorZ), "LDKCResult_PingDecodeErrorZ");
        *ret_conv = Ping_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Pong_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKPong obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = Pong_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -37927,14 +36301,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Pong_1read(JNIEnv *env, jcl
        LDKCResult_PongDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PongDecodeErrorZ), "LDKCResult_PongDecodeErrorZ");
        *ret_conv = Pong_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnouncement_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKUnsignedChannelAnnouncement obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = UnsignedChannelAnnouncement_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -37949,14 +36324,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UnsignedChannelAnnouncement
        LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ), "LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ");
        *ret_conv = UnsignedChannelAnnouncement_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelAnnouncement_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKChannelAnnouncement obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = ChannelAnnouncement_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -37971,14 +36347,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelAnnouncement_1read(J
        LDKCResult_ChannelAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelAnnouncementDecodeErrorZ), "LDKCResult_ChannelAnnouncementDecodeErrorZ");
        *ret_conv = ChannelAnnouncement_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKUnsignedChannelUpdate obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = UnsignedChannelUpdate_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -37993,14 +36370,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UnsignedChannelUpdate_1read
        LDKCResult_UnsignedChannelUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedChannelUpdateDecodeErrorZ), "LDKCResult_UnsignedChannelUpdateDecodeErrorZ");
        *ret_conv = UnsignedChannelUpdate_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelUpdate_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKChannelUpdate obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = ChannelUpdate_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -38015,14 +36393,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelUpdate_1read(JNIEnv
        LDKCResult_ChannelUpdateDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelUpdateDecodeErrorZ), "LDKCResult_ChannelUpdateDecodeErrorZ");
        *ret_conv = ChannelUpdate_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ErrorMessage_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKErrorMessage obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = ErrorMessage_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -38037,14 +36416,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ErrorMessage_1read(JNIEnv *
        LDKCResult_ErrorMessageDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ErrorMessageDecodeErrorZ), "LDKCResult_ErrorMessageDecodeErrorZ");
        *ret_conv = ErrorMessage_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_WarningMessage_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKWarningMessage obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = WarningMessage_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -38059,14 +36439,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_WarningMessage_1read(JNIEnv
        LDKCResult_WarningMessageDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_WarningMessageDecodeErrorZ), "LDKCResult_WarningMessageDecodeErrorZ");
        *ret_conv = WarningMessage_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncement_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKUnsignedNodeAnnouncement obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = UnsignedNodeAnnouncement_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -38081,14 +36462,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UnsignedNodeAnnouncement_1r
        LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ), "LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ");
        *ret_conv = UnsignedNodeAnnouncement_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_NodeAnnouncement_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKNodeAnnouncement obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = NodeAnnouncement_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -38103,7 +36485,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeAnnouncement_1read(JNIE
        LDKCResult_NodeAnnouncementDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAnnouncementDecodeErrorZ), "LDKCResult_NodeAnnouncementDecodeErrorZ");
        *ret_conv = NodeAnnouncement_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_QueryShortChannelIds_1read(JNIEnv *env, jclass clz, int8_tArray ser) {
@@ -38113,14 +36495,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_QueryShortChannelIds_1read(
        LDKCResult_QueryShortChannelIdsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_QueryShortChannelIdsDecodeErrorZ), "LDKCResult_QueryShortChannelIdsDecodeErrorZ");
        *ret_conv = QueryShortChannelIds_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_QueryShortChannelIds_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKQueryShortChannelIds obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = QueryShortChannelIds_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -38130,9 +36513,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_QueryShortChannelIds_1w
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ReplyShortChannelIdsEnd_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKReplyShortChannelIdsEnd obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = ReplyShortChannelIdsEnd_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -38147,23 +36531,25 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ReplyShortChannelIdsEnd_1re
        LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ), "LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ");
        *ret_conv = ReplyShortChannelIdsEnd_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_QueryChannelRange_1end_1blocknum(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKQueryChannelRange this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int32_t ret_conv = QueryChannelRange_end_blocknum(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_QueryChannelRange_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKQueryChannelRange obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = QueryChannelRange_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -38178,7 +36564,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_QueryChannelRange_1read(JNI
        LDKCResult_QueryChannelRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_QueryChannelRangeDecodeErrorZ), "LDKCResult_QueryChannelRangeDecodeErrorZ");
        *ret_conv = QueryChannelRange_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ReplyChannelRange_1read(JNIEnv *env, jclass clz, int8_tArray ser) {
@@ -38188,14 +36574,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ReplyChannelRange_1read(JNI
        LDKCResult_ReplyChannelRangeDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ReplyChannelRangeDecodeErrorZ), "LDKCResult_ReplyChannelRangeDecodeErrorZ");
        *ret_conv = ReplyChannelRange_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ReplyChannelRange_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKReplyChannelRange obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = ReplyChannelRange_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -38205,9 +36592,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ReplyChannelRange_1writ
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_GossipTimestampFilter_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKGossipTimestampFilter obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = GossipTimestampFilter_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -38222,22 +36610,22 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_GossipTimestampFilter_1read
        LDKCResult_GossipTimestampFilterDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_GossipTimestampFilterDecodeErrorZ), "LDKCResult_GossipTimestampFilterDecodeErrorZ");
        *ret_conv = GossipTimestampFilter_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CustomMessageHandler_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKCustomMessageHandler this_ptr_conv = *(LDKCustomMessageHandler*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        CustomMessageHandler_free(this_ptr_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_IgnoringMessageHandler_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKIgnoringMessageHandler this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        IgnoringMessageHandler_free(this_obj_conv);
 }
@@ -38245,60 +36633,59 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_IgnoringMessageHandler_1free(J
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_IgnoringMessageHandler_1new(JNIEnv *env, jclass clz) {
        LDKIgnoringMessageHandler ret_var = IgnoringMessageHandler_new();
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_IgnoringMessageHandler_1as_1MessageSendEventsProvider(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKIgnoringMessageHandler this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKMessageSendEventsProvider* ret_ret = MALLOC(sizeof(LDKMessageSendEventsProvider), "LDKMessageSendEventsProvider");
        *ret_ret = IgnoringMessageHandler_as_MessageSendEventsProvider(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_IgnoringMessageHandler_1as_1RoutingMessageHandler(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKIgnoringMessageHandler this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKRoutingMessageHandler* ret_ret = MALLOC(sizeof(LDKRoutingMessageHandler), "LDKRoutingMessageHandler");
        *ret_ret = IgnoringMessageHandler_as_RoutingMessageHandler(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_IgnoringMessageHandler_1as_1CustomMessageReader(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKIgnoringMessageHandler this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCustomMessageReader* ret_ret = MALLOC(sizeof(LDKCustomMessageReader), "LDKCustomMessageReader");
        *ret_ret = IgnoringMessageHandler_as_CustomMessageReader(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_IgnoringMessageHandler_1as_1CustomMessageHandler(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKIgnoringMessageHandler this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCustomMessageHandler* ret_ret = MALLOC(sizeof(LDKCustomMessageHandler), "LDKCustomMessageHandler");
        *ret_ret = IgnoringMessageHandler_as_CustomMessageHandler(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ErroringMessageHandler_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKErroringMessageHandler this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ErroringMessageHandler_free(this_obj_conv);
 }
@@ -38306,60 +36693,59 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ErroringMessageHandler_1free(J
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ErroringMessageHandler_1new(JNIEnv *env, jclass clz) {
        LDKErroringMessageHandler ret_var = ErroringMessageHandler_new();
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ErroringMessageHandler_1as_1MessageSendEventsProvider(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKErroringMessageHandler this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKMessageSendEventsProvider* ret_ret = MALLOC(sizeof(LDKMessageSendEventsProvider), "LDKMessageSendEventsProvider");
        *ret_ret = ErroringMessageHandler_as_MessageSendEventsProvider(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ErroringMessageHandler_1as_1ChannelMessageHandler(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKErroringMessageHandler this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKChannelMessageHandler* ret_ret = MALLOC(sizeof(LDKChannelMessageHandler), "LDKChannelMessageHandler");
        *ret_ret = ErroringMessageHandler_as_ChannelMessageHandler(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_MessageHandler_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKMessageHandler this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        MessageHandler_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageHandler_1get_1chan_1handler(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKMessageHandler this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        // WARNING: This object doesn't live past this scope, needs clone!
-       int64_t ret_ret = ((uintptr_t)MessageHandler_get_chan_handler(&this_ptr_conv)) | 1;
+       int64_t ret_ret = tag_ptr(MessageHandler_get_chan_handler(&this_ptr_conv), false);
        return ret_ret;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_MessageHandler_1set_1chan_1handler(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKMessageHandler this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKChannelMessageHandler val_conv = *(LDKChannelMessageHandler*)(val_ptr);
        if (val_conv.free == LDKChannelMessageHandler_JCalls_free) {
@@ -38371,20 +36757,22 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_MessageHandler_1set_1chan_1han
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageHandler_1get_1route_1handler(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKMessageHandler this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        // WARNING: This object doesn't live past this scope, needs clone!
-       int64_t ret_ret = ((uintptr_t)MessageHandler_get_route_handler(&this_ptr_conv)) | 1;
+       int64_t ret_ret = tag_ptr(MessageHandler_get_route_handler(&this_ptr_conv), false);
        return ret_ret;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_MessageHandler_1set_1route_1handler(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKMessageHandler this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKRoutingMessageHandler val_conv = *(LDKRoutingMessageHandler*)(val_ptr);
        if (val_conv.free == LDKRoutingMessageHandler_JCalls_free) {
@@ -38395,14 +36783,14 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_MessageHandler_1set_1route_1ha
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageHandler_1new(JNIEnv *env, jclass clz, int64_t chan_handler_arg, int64_t route_handler_arg) {
-       void* chan_handler_arg_ptr = (void*)(((uintptr_t)chan_handler_arg) & ~1);
+       void* chan_handler_arg_ptr = untag_ptr(chan_handler_arg);
        CHECK_ACCESS(chan_handler_arg_ptr);
        LDKChannelMessageHandler chan_handler_arg_conv = *(LDKChannelMessageHandler*)(chan_handler_arg_ptr);
        if (chan_handler_arg_conv.free == LDKChannelMessageHandler_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKChannelMessageHandler_JCalls_cloned(&chan_handler_arg_conv);
        }
-       void* route_handler_arg_ptr = (void*)(((uintptr_t)route_handler_arg) & ~1);
+       void* route_handler_arg_ptr = untag_ptr(route_handler_arg);
        CHECK_ACCESS(route_handler_arg_ptr);
        LDKRoutingMessageHandler route_handler_arg_conv = *(LDKRoutingMessageHandler*)(route_handler_arg_ptr);
        if (route_handler_arg_conv.free == LDKRoutingMessageHandler_JCalls_free) {
@@ -38411,137 +36799,122 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageHandler_1new(JNIEnv
        }
        LDKMessageHandler ret_var = MessageHandler_new(chan_handler_arg_conv, route_handler_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t SocketDescriptor_clone_ptr(LDKSocketDescriptor *NONNULL_PTR arg) {
+static inline uint64_t SocketDescriptor_clone_ptr(LDKSocketDescriptor *NONNULL_PTR arg) {
        LDKSocketDescriptor* ret_ret = MALLOC(sizeof(LDKSocketDescriptor), "LDKSocketDescriptor");
        *ret_ret = SocketDescriptor_clone(arg);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SocketDescriptor_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       void* arg_ptr = (void*)(((uintptr_t)arg) & ~1);
-       if (!(arg & 1)) { CHECK_ACCESS(arg_ptr); }
+       void* arg_ptr = untag_ptr(arg);
+       if (ptr_is_owned(arg)) { CHECK_ACCESS(arg_ptr); }
        LDKSocketDescriptor* arg_conv = (LDKSocketDescriptor*)arg_ptr;
        int64_t ret_conv = SocketDescriptor_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SocketDescriptor_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       void* orig_ptr = (void*)(((uintptr_t)orig) & ~1);
-       if (!(orig & 1)) { CHECK_ACCESS(orig_ptr); }
+       void* orig_ptr = untag_ptr(orig);
+       if (ptr_is_owned(orig)) { CHECK_ACCESS(orig_ptr); }
        LDKSocketDescriptor* orig_conv = (LDKSocketDescriptor*)orig_ptr;
        LDKSocketDescriptor* ret_ret = MALLOC(sizeof(LDKSocketDescriptor), "LDKSocketDescriptor");
        *ret_ret = SocketDescriptor_clone(orig_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_SocketDescriptor_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKSocketDescriptor this_ptr_conv = *(LDKSocketDescriptor*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        SocketDescriptor_free(this_ptr_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PeerHandleError_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKPeerHandleError this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        PeerHandleError_free(this_obj_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_PeerHandleError_1get_1no_1connection_1possible(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKPeerHandleError this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        jboolean ret_conv = PeerHandleError_get_no_connection_possible(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PeerHandleError_1set_1no_1connection_1possible(JNIEnv *env, jclass clz, int64_t this_ptr, jboolean val) {
        LDKPeerHandleError this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        PeerHandleError_set_no_connection_possible(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PeerHandleError_1new(JNIEnv *env, jclass clz, jboolean no_connection_possible_arg) {
        LDKPeerHandleError ret_var = PeerHandleError_new(no_connection_possible_arg);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t PeerHandleError_clone_ptr(LDKPeerHandleError *NONNULL_PTR arg) {
+static inline uint64_t PeerHandleError_clone_ptr(LDKPeerHandleError *NONNULL_PTR arg) {
        LDKPeerHandleError ret_var = PeerHandleError_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PeerHandleError_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKPeerHandleError arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = PeerHandleError_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PeerHandleError_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKPeerHandleError orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKPeerHandleError ret_var = PeerHandleError_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PeerManager_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKPeerManager this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        PeerManager_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PeerManager_1new(JNIEnv *env, jclass clz, int64_t message_handler, int8_tArray our_node_secret, int8_tArray ephemeral_random_data, int64_t logger, int64_t custom_message_handler) {
        LDKMessageHandler message_handler_conv;
-       message_handler_conv.inner = (void*)(message_handler & (~1));
-       message_handler_conv.is_owned = (message_handler & 1) || (message_handler == 0);
+       message_handler_conv.inner = untag_ptr(message_handler);
+       message_handler_conv.is_owned = ptr_is_owned(message_handler);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(message_handler_conv);
        // WARNING: we need a move here but no clone is available for LDKMessageHandler
+       
        LDKSecretKey our_node_secret_ref;
        CHECK((*env)->GetArrayLength(env, our_node_secret) == 32);
        (*env)->GetByteArrayRegion(env, our_node_secret, 0, 32, our_node_secret_ref.bytes);
@@ -38549,14 +36922,14 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PeerManager_1new(JNIEnv *en
        CHECK((*env)->GetArrayLength(env, ephemeral_random_data) == 32);
        (*env)->GetByteArrayRegion(env, ephemeral_random_data, 0, 32, ephemeral_random_data_arr);
        unsigned char (*ephemeral_random_data_ref)[32] = &ephemeral_random_data_arr;
-       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
+       void* logger_ptr = untag_ptr(logger);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
        if (logger_conv.free == LDKLogger_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKLogger_JCalls_cloned(&logger_conv);
        }
-       void* custom_message_handler_ptr = (void*)(((uintptr_t)custom_message_handler) & ~1);
+       void* custom_message_handler_ptr = untag_ptr(custom_message_handler);
        CHECK_ACCESS(custom_message_handler_ptr);
        LDKCustomMessageHandler custom_message_handler_conv = *(LDKCustomMessageHandler*)(custom_message_handler_ptr);
        if (custom_message_handler_conv.free == LDKCustomMessageHandler_JCalls_free) {
@@ -38565,21 +36938,17 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PeerManager_1new(JNIEnv *en
        }
        LDKPeerManager ret_var = PeerManager_new(message_handler_conv, our_node_secret_ref, ephemeral_random_data_ref, logger_conv, custom_message_handler_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT jobjectArray JNICALL Java_org_ldk_impl_bindings_PeerManager_1get_1peer_1node_1ids(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKPeerManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCVec_PublicKeyZ ret_var = PeerManager_get_peer_node_ids(&this_arg_conv);
        jobjectArray ret_arr = NULL;
        ret_arr = (*env)->NewObjectArray(env, ret_var.datalen, arr_of_B_clz, NULL);
@@ -38596,67 +36965,71 @@ JNIEXPORT jobjectArray JNICALL Java_org_ldk_impl_bindings_PeerManager_1get_1peer
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PeerManager_1new_1outbound_1connection(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t descriptor, int64_t remote_network_address) {
        LDKPeerManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKPublicKey their_node_id_ref;
        CHECK((*env)->GetArrayLength(env, their_node_id) == 33);
        (*env)->GetByteArrayRegion(env, their_node_id, 0, 33, their_node_id_ref.compressed_form);
-       void* descriptor_ptr = (void*)(((uintptr_t)descriptor) & ~1);
+       void* descriptor_ptr = untag_ptr(descriptor);
        CHECK_ACCESS(descriptor_ptr);
        LDKSocketDescriptor descriptor_conv = *(LDKSocketDescriptor*)(descriptor_ptr);
        if (descriptor_conv.free == LDKSocketDescriptor_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKSocketDescriptor_JCalls_cloned(&descriptor_conv);
        }
-       void* remote_network_address_ptr = (void*)(((uintptr_t)remote_network_address) & ~1);
+       void* remote_network_address_ptr = untag_ptr(remote_network_address);
        CHECK_ACCESS(remote_network_address_ptr);
        LDKCOption_NetAddressZ remote_network_address_conv = *(LDKCOption_NetAddressZ*)(remote_network_address_ptr);
        LDKCResult_CVec_u8ZPeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_u8ZPeerHandleErrorZ), "LDKCResult_CVec_u8ZPeerHandleErrorZ");
        *ret_conv = PeerManager_new_outbound_connection(&this_arg_conv, their_node_id_ref, descriptor_conv, remote_network_address_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PeerManager_1new_1inbound_1connection(JNIEnv *env, jclass clz, int64_t this_arg, int64_t descriptor, int64_t remote_network_address) {
        LDKPeerManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
-       void* descriptor_ptr = (void*)(((uintptr_t)descriptor) & ~1);
+       this_arg_conv.is_owned = false;
+       void* descriptor_ptr = untag_ptr(descriptor);
        CHECK_ACCESS(descriptor_ptr);
        LDKSocketDescriptor descriptor_conv = *(LDKSocketDescriptor*)(descriptor_ptr);
        if (descriptor_conv.free == LDKSocketDescriptor_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKSocketDescriptor_JCalls_cloned(&descriptor_conv);
        }
-       void* remote_network_address_ptr = (void*)(((uintptr_t)remote_network_address) & ~1);
+       void* remote_network_address_ptr = untag_ptr(remote_network_address);
        CHECK_ACCESS(remote_network_address_ptr);
        LDKCOption_NetAddressZ remote_network_address_conv = *(LDKCOption_NetAddressZ*)(remote_network_address_ptr);
        LDKCResult_NonePeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePeerHandleErrorZ), "LDKCResult_NonePeerHandleErrorZ");
        *ret_conv = PeerManager_new_inbound_connection(&this_arg_conv, descriptor_conv, remote_network_address_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PeerManager_1write_1buffer_1space_1avail(JNIEnv *env, jclass clz, int64_t this_arg, int64_t descriptor) {
        LDKPeerManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
-       void* descriptor_ptr = (void*)(((uintptr_t)descriptor) & ~1);
-       if (!(descriptor & 1)) { CHECK_ACCESS(descriptor_ptr); }
+       this_arg_conv.is_owned = false;
+       void* descriptor_ptr = untag_ptr(descriptor);
+       if (ptr_is_owned(descriptor)) { CHECK_ACCESS(descriptor_ptr); }
        LDKSocketDescriptor* descriptor_conv = (LDKSocketDescriptor*)descriptor_ptr;
        LDKCResult_NonePeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePeerHandleErrorZ), "LDKCResult_NonePeerHandleErrorZ");
        *ret_conv = PeerManager_write_buffer_space_avail(&this_arg_conv, descriptor_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PeerManager_1read_1event(JNIEnv *env, jclass clz, int64_t this_arg, int64_t peer_descriptor, int8_tArray data) {
        LDKPeerManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
-       void* peer_descriptor_ptr = (void*)(((uintptr_t)peer_descriptor) & ~1);
-       if (!(peer_descriptor & 1)) { CHECK_ACCESS(peer_descriptor_ptr); }
+       this_arg_conv.is_owned = false;
+       void* peer_descriptor_ptr = untag_ptr(peer_descriptor);
+       if (ptr_is_owned(peer_descriptor)) { CHECK_ACCESS(peer_descriptor_ptr); }
        LDKSocketDescriptor* peer_descriptor_conv = (LDKSocketDescriptor*)peer_descriptor_ptr;
        LDKu8slice data_ref;
        data_ref.datalen = (*env)->GetArrayLength(env, data);
@@ -38664,33 +37037,36 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PeerManager_1read_1event(JN
        LDKCResult_boolPeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_boolPeerHandleErrorZ), "LDKCResult_boolPeerHandleErrorZ");
        *ret_conv = PeerManager_read_event(&this_arg_conv, peer_descriptor_conv, data_ref);
        (*env)->ReleaseByteArrayElements(env, data, (int8_t*)data_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PeerManager_1process_1events(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKPeerManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        PeerManager_process_events(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PeerManager_1socket_1disconnected(JNIEnv *env, jclass clz, int64_t this_arg, int64_t descriptor) {
        LDKPeerManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
-       void* descriptor_ptr = (void*)(((uintptr_t)descriptor) & ~1);
-       if (!(descriptor & 1)) { CHECK_ACCESS(descriptor_ptr); }
+       this_arg_conv.is_owned = false;
+       void* descriptor_ptr = untag_ptr(descriptor);
+       if (ptr_is_owned(descriptor)) { CHECK_ACCESS(descriptor_ptr); }
        LDKSocketDescriptor* descriptor_conv = (LDKSocketDescriptor*)descriptor_ptr;
        PeerManager_socket_disconnected(&this_arg_conv, descriptor_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PeerManager_1disconnect_1by_1node_1id(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray node_id, jboolean no_connection_possible) {
        LDKPeerManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKPublicKey node_id_ref;
        CHECK((*env)->GetArrayLength(env, node_id) == 33);
        (*env)->GetByteArrayRegion(env, node_id, 0, 33, node_id_ref.compressed_form);
@@ -38699,17 +37075,19 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PeerManager_1disconnect_1by_1n
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PeerManager_1disconnect_1all_1peers(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKPeerManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        PeerManager_disconnect_all_peers(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PeerManager_1timer_1tick_1occurred(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKPeerManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        PeerManager_timer_tick_occurred(&this_arg_conv);
 }
 
@@ -38743,8 +37121,8 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_build_1closing_1transac
        to_counterparty_script_ref.data = MALLOC(to_counterparty_script_ref.datalen, "LDKCVec_u8Z Bytes");
        (*env)->GetByteArrayRegion(env, to_counterparty_script, 0, to_counterparty_script_ref.datalen, to_counterparty_script_ref.data);
        LDKOutPoint funding_outpoint_conv;
-       funding_outpoint_conv.inner = (void*)(funding_outpoint & (~1));
-       funding_outpoint_conv.is_owned = (funding_outpoint & 1) || (funding_outpoint == 0);
+       funding_outpoint_conv.inner = untag_ptr(funding_outpoint);
+       funding_outpoint_conv.is_owned = ptr_is_owned(funding_outpoint);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(funding_outpoint_conv);
        funding_outpoint_conv = OutPoint_clone(&funding_outpoint_conv);
        LDKTransaction ret_var = build_closing_transaction(to_holder_value_sat, to_counterparty_value_sat, to_holder_script_ref, to_counterparty_script_ref, funding_outpoint_conv);
@@ -38756,90 +37134,80 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_build_1closing_1transac
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CounterpartyCommitmentSecrets_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKCounterpartyCommitmentSecrets this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        CounterpartyCommitmentSecrets_free(this_obj_conv);
 }
 
-static inline uintptr_t CounterpartyCommitmentSecrets_clone_ptr(LDKCounterpartyCommitmentSecrets *NONNULL_PTR arg) {
+static inline uint64_t CounterpartyCommitmentSecrets_clone_ptr(LDKCounterpartyCommitmentSecrets *NONNULL_PTR arg) {
        LDKCounterpartyCommitmentSecrets ret_var = CounterpartyCommitmentSecrets_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CounterpartyCommitmentSecrets_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKCounterpartyCommitmentSecrets arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = CounterpartyCommitmentSecrets_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CounterpartyCommitmentSecrets_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKCounterpartyCommitmentSecrets orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKCounterpartyCommitmentSecrets ret_var = CounterpartyCommitmentSecrets_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CounterpartyCommitmentSecrets_1new(JNIEnv *env, jclass clz) {
        LDKCounterpartyCommitmentSecrets ret_var = CounterpartyCommitmentSecrets_new();
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CounterpartyCommitmentSecrets_1get_1min_1seen_1secret(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKCounterpartyCommitmentSecrets this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int64_t ret_conv = CounterpartyCommitmentSecrets_get_min_seen_secret(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CounterpartyCommitmentSecrets_1provide_1secret(JNIEnv *env, jclass clz, int64_t this_arg, int64_t idx, int8_tArray secret) {
        LDKCounterpartyCommitmentSecrets this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKThirtyTwoBytes secret_ref;
        CHECK((*env)->GetArrayLength(env, secret) == 32);
        (*env)->GetByteArrayRegion(env, secret, 0, 32, secret_ref.data);
        LDKCResult_NoneNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneNoneZ), "LDKCResult_NoneNoneZ");
        *ret_conv = CounterpartyCommitmentSecrets_provide_secret(&this_arg_conv, idx, secret_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_CounterpartyCommitmentSecrets_1get_1secret(JNIEnv *env, jclass clz, int64_t this_arg, int64_t idx) {
        LDKCounterpartyCommitmentSecrets this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, CounterpartyCommitmentSecrets_get_secret(&this_arg_conv, idx).data);
        return ret_arr;
@@ -38847,9 +37215,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_CounterpartyCommitmentS
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_CounterpartyCommitmentSecrets_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKCounterpartyCommitmentSecrets obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = CounterpartyCommitmentSecrets_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -38864,7 +37233,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CounterpartyCommitmentSecre
        LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ), "LDKCResult_CounterpartyCommitmentSecretsDecodeErrorZ");
        *ret_conv = CounterpartyCommitmentSecrets_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_derive_1private_1key(JNIEnv *env, jclass clz, int8_tArray per_commitment_point, int8_tArray base_secret) {
@@ -38877,7 +37246,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_derive_1private_1key(JNIEnv
        unsigned char (*base_secret_ref)[32] = &base_secret_arr;
        LDKCResult_SecretKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SecretKeyErrorZ), "LDKCResult_SecretKeyErrorZ");
        *ret_conv = derive_private_key(per_commitment_point_ref, base_secret_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_derive_1public_1key(JNIEnv *env, jclass clz, int8_tArray per_commitment_point, int8_tArray base_point) {
@@ -38889,7 +37258,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_derive_1public_1key(JNIEnv
        (*env)->GetByteArrayRegion(env, base_point, 0, 33, base_point_ref.compressed_form);
        LDKCResult_PublicKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PublicKeyErrorZ), "LDKCResult_PublicKeyErrorZ");
        *ret_conv = derive_public_key(per_commitment_point_ref, base_point_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_derive_1private_1revocation_1key(JNIEnv *env, jclass clz, int8_tArray per_commitment_secret, int8_tArray countersignatory_revocation_base_secret) {
@@ -38903,7 +37272,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_derive_1private_1revocation
        unsigned char (*countersignatory_revocation_base_secret_ref)[32] = &countersignatory_revocation_base_secret_arr;
        LDKCResult_SecretKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SecretKeyErrorZ), "LDKCResult_SecretKeyErrorZ");
        *ret_conv = derive_private_revocation_key(per_commitment_secret_ref, countersignatory_revocation_base_secret_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_derive_1public_1revocation_1key(JNIEnv *env, jclass clz, int8_tArray per_commitment_point, int8_tArray countersignatory_revocation_base_point) {
@@ -38915,22 +37284,23 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_derive_1public_1revocation_
        (*env)->GetByteArrayRegion(env, countersignatory_revocation_base_point, 0, 33, countersignatory_revocation_base_point_ref.compressed_form);
        LDKCResult_PublicKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PublicKeyErrorZ), "LDKCResult_PublicKeyErrorZ");
        *ret_conv = derive_public_revocation_key(per_commitment_point_ref, countersignatory_revocation_base_point_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKTxCreationKeys this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        TxCreationKeys_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1get_1per_1commitment_1point(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKTxCreationKeys this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, TxCreationKeys_get_per_commitment_point(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -38938,9 +37308,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1get_1pe
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1set_1per_1commitment_1point(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKTxCreationKeys this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -38949,9 +37320,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1set_1per_1comm
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1get_1revocation_1key(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKTxCreationKeys this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, TxCreationKeys_get_revocation_key(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -38959,9 +37331,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1get_1re
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1set_1revocation_1key(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKTxCreationKeys this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -38970,9 +37343,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1set_1revocatio
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1get_1broadcaster_1htlc_1key(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKTxCreationKeys this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, TxCreationKeys_get_broadcaster_htlc_key(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -38980,9 +37354,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1get_1br
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1set_1broadcaster_1htlc_1key(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKTxCreationKeys this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -38991,9 +37366,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1set_1broadcast
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1get_1countersignatory_1htlc_1key(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKTxCreationKeys this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, TxCreationKeys_get_countersignatory_htlc_key(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -39001,9 +37377,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1get_1co
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1set_1countersignatory_1htlc_1key(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKTxCreationKeys this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -39012,9 +37389,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1set_1countersi
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1get_1broadcaster_1delayed_1payment_1key(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKTxCreationKeys this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, TxCreationKeys_get_broadcaster_delayed_payment_key(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -39022,9 +37400,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1get_1br
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1set_1broadcaster_1delayed_1payment_1key(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKTxCreationKeys this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -39049,59 +37428,47 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1new(JNIEnv
        (*env)->GetByteArrayRegion(env, broadcaster_delayed_payment_key_arg, 0, 33, broadcaster_delayed_payment_key_arg_ref.compressed_form);
        LDKTxCreationKeys ret_var = TxCreationKeys_new(per_commitment_point_arg_ref, revocation_key_arg_ref, broadcaster_htlc_key_arg_ref, countersignatory_htlc_key_arg_ref, broadcaster_delayed_payment_key_arg_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t TxCreationKeys_clone_ptr(LDKTxCreationKeys *NONNULL_PTR arg) {
+static inline uint64_t TxCreationKeys_clone_ptr(LDKTxCreationKeys *NONNULL_PTR arg) {
        LDKTxCreationKeys ret_var = TxCreationKeys_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKTxCreationKeys arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = TxCreationKeys_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKTxCreationKeys orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKTxCreationKeys ret_var = TxCreationKeys_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKTxCreationKeys obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = TxCreationKeys_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -39116,22 +37483,23 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1read(JNIEnv
        LDKCResult_TxCreationKeysDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxCreationKeysDecodeErrorZ), "LDKCResult_TxCreationKeysDecodeErrorZ");
        *ret_conv = TxCreationKeys_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKChannelPublicKeys this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ChannelPublicKeys_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1get_1funding_1pubkey(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelPublicKeys this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, ChannelPublicKeys_get_funding_pubkey(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -39139,9 +37507,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1get_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1set_1funding_1pubkey(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKChannelPublicKeys this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -39150,9 +37519,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1set_1fundin
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1get_1revocation_1basepoint(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelPublicKeys this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, ChannelPublicKeys_get_revocation_basepoint(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -39160,9 +37530,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1get_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1set_1revocation_1basepoint(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKChannelPublicKeys this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -39171,9 +37542,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1set_1revoca
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1get_1payment_1point(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelPublicKeys this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, ChannelPublicKeys_get_payment_point(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -39181,9 +37553,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1get_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1set_1payment_1point(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKChannelPublicKeys this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -39192,9 +37565,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1set_1paymen
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1get_1delayed_1payment_1basepoint(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelPublicKeys this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, ChannelPublicKeys_get_delayed_payment_basepoint(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -39202,9 +37576,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1get_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1set_1delayed_1payment_1basepoint(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKChannelPublicKeys this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -39213,9 +37588,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1set_1delaye
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1get_1htlc_1basepoint(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelPublicKeys this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, ChannelPublicKeys_get_htlc_basepoint(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -39223,9 +37599,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1get_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1set_1htlc_1basepoint(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKChannelPublicKeys this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -39250,59 +37627,47 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1new(JNIE
        (*env)->GetByteArrayRegion(env, htlc_basepoint_arg, 0, 33, htlc_basepoint_arg_ref.compressed_form);
        LDKChannelPublicKeys ret_var = ChannelPublicKeys_new(funding_pubkey_arg_ref, revocation_basepoint_arg_ref, payment_point_arg_ref, delayed_payment_basepoint_arg_ref, htlc_basepoint_arg_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t ChannelPublicKeys_clone_ptr(LDKChannelPublicKeys *NONNULL_PTR arg) {
+static inline uint64_t ChannelPublicKeys_clone_ptr(LDKChannelPublicKeys *NONNULL_PTR arg) {
        LDKChannelPublicKeys ret_var = ChannelPublicKeys_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKChannelPublicKeys arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ChannelPublicKeys_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKChannelPublicKeys orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKChannelPublicKeys ret_var = ChannelPublicKeys_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKChannelPublicKeys obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = ChannelPublicKeys_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -39317,7 +37682,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelPublicKeys_1read(JNI
        LDKCResult_ChannelPublicKeysDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelPublicKeysDecodeErrorZ), "LDKCResult_ChannelPublicKeysDecodeErrorZ");
        *ret_conv = ChannelPublicKeys_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1derive_1new(JNIEnv *env, jclass clz, int8_tArray per_commitment_point, int8_tArray broadcaster_delayed_payment_base, int8_tArray broadcaster_htlc_base, int8_tArray countersignatory_revocation_base, int8_tArray countersignatory_htlc_base) {
@@ -39338,7 +37703,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1derive_1new
        (*env)->GetByteArrayRegion(env, countersignatory_htlc_base, 0, 33, countersignatory_htlc_base_ref.compressed_form);
        LDKCResult_TxCreationKeysErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxCreationKeysErrorZ), "LDKCResult_TxCreationKeysErrorZ");
        *ret_conv = TxCreationKeys_derive_new(per_commitment_point_ref, broadcaster_delayed_payment_base_ref, broadcaster_htlc_base_ref, countersignatory_revocation_base_ref, countersignatory_htlc_base_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1from_1channel_1static_1keys(JNIEnv *env, jclass clz, int8_tArray per_commitment_point, int64_t broadcaster_keys, int64_t countersignatory_keys) {
@@ -39346,16 +37711,18 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_TxCreationKeys_1from_1chann
        CHECK((*env)->GetArrayLength(env, per_commitment_point) == 33);
        (*env)->GetByteArrayRegion(env, per_commitment_point, 0, 33, per_commitment_point_ref.compressed_form);
        LDKChannelPublicKeys broadcaster_keys_conv;
-       broadcaster_keys_conv.inner = (void*)(broadcaster_keys & (~1));
-       broadcaster_keys_conv.is_owned = false;
+       broadcaster_keys_conv.inner = untag_ptr(broadcaster_keys);
+       broadcaster_keys_conv.is_owned = ptr_is_owned(broadcaster_keys);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(broadcaster_keys_conv);
+       broadcaster_keys_conv.is_owned = false;
        LDKChannelPublicKeys countersignatory_keys_conv;
-       countersignatory_keys_conv.inner = (void*)(countersignatory_keys & (~1));
-       countersignatory_keys_conv.is_owned = false;
+       countersignatory_keys_conv.inner = untag_ptr(countersignatory_keys);
+       countersignatory_keys_conv.is_owned = ptr_is_owned(countersignatory_keys);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(countersignatory_keys_conv);
+       countersignatory_keys_conv.is_owned = false;
        LDKCResult_TxCreationKeysErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxCreationKeysErrorZ), "LDKCResult_TxCreationKeysErrorZ");
        *ret_conv = TxCreationKeys_from_channel_static_keys(per_commitment_point_ref, &broadcaster_keys_conv, &countersignatory_keys_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_get_1revokeable_1redeemscript(JNIEnv *env, jclass clz, int8_tArray revocation_key, int16_t contest_delay, int8_tArray broadcaster_delayed_payment_key) {
@@ -39374,68 +37741,75 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_get_1revokeable_1redeem
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_HTLCOutputInCommitment_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKHTLCOutputInCommitment this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        HTLCOutputInCommitment_free(this_obj_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_HTLCOutputInCommitment_1get_1offered(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKHTLCOutputInCommitment this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        jboolean ret_conv = HTLCOutputInCommitment_get_offered(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_HTLCOutputInCommitment_1set_1offered(JNIEnv *env, jclass clz, int64_t this_ptr, jboolean val) {
        LDKHTLCOutputInCommitment this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        HTLCOutputInCommitment_set_offered(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_HTLCOutputInCommitment_1get_1amount_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKHTLCOutputInCommitment this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = HTLCOutputInCommitment_get_amount_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_HTLCOutputInCommitment_1set_1amount_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKHTLCOutputInCommitment this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        HTLCOutputInCommitment_set_amount_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_HTLCOutputInCommitment_1get_1cltv_1expiry(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKHTLCOutputInCommitment this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = HTLCOutputInCommitment_get_cltv_expiry(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_HTLCOutputInCommitment_1set_1cltv_1expiry(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKHTLCOutputInCommitment this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        HTLCOutputInCommitment_set_cltv_expiry(&this_ptr_conv, val);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_HTLCOutputInCommitment_1get_1payment_1hash(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKHTLCOutputInCommitment this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *HTLCOutputInCommitment_get_payment_hash(&this_ptr_conv));
        return ret_arr;
@@ -39443,9 +37817,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_HTLCOutputInCommitment_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_HTLCOutputInCommitment_1set_1payment_1hash(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKHTLCOutputInCommitment this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -39454,24 +37829,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_HTLCOutputInCommitment_1set_1p
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_HTLCOutputInCommitment_1get_1transaction_1output_1index(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKHTLCOutputInCommitment this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCOption_u32Z *ret_copy = MALLOC(sizeof(LDKCOption_u32Z), "LDKCOption_u32Z");
        *ret_copy = HTLCOutputInCommitment_get_transaction_output_index(&this_ptr_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_HTLCOutputInCommitment_1set_1transaction_1output_1index(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKHTLCOutputInCommitment this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u32Z val_conv = *(LDKCOption_u32Z*)(val_ptr);
-       val_conv = COption_u32Z_clone((LDKCOption_u32Z*)(((uintptr_t)val) & ~1));
+       val_conv = COption_u32Z_clone((LDKCOption_u32Z*)untag_ptr(val));
        HTLCOutputInCommitment_set_transaction_output_index(&this_ptr_conv, val_conv);
 }
 
@@ -39479,65 +37856,53 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_HTLCOutputInCommitment_1new
        LDKThirtyTwoBytes payment_hash_arg_ref;
        CHECK((*env)->GetArrayLength(env, payment_hash_arg) == 32);
        (*env)->GetByteArrayRegion(env, payment_hash_arg, 0, 32, payment_hash_arg_ref.data);
-       void* transaction_output_index_arg_ptr = (void*)(((uintptr_t)transaction_output_index_arg) & ~1);
+       void* transaction_output_index_arg_ptr = untag_ptr(transaction_output_index_arg);
        CHECK_ACCESS(transaction_output_index_arg_ptr);
        LDKCOption_u32Z transaction_output_index_arg_conv = *(LDKCOption_u32Z*)(transaction_output_index_arg_ptr);
-       transaction_output_index_arg_conv = COption_u32Z_clone((LDKCOption_u32Z*)(((uintptr_t)transaction_output_index_arg) & ~1));
+       transaction_output_index_arg_conv = COption_u32Z_clone((LDKCOption_u32Z*)untag_ptr(transaction_output_index_arg));
        LDKHTLCOutputInCommitment ret_var = HTLCOutputInCommitment_new(offered_arg, amount_msat_arg, cltv_expiry_arg, payment_hash_arg_ref, transaction_output_index_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t HTLCOutputInCommitment_clone_ptr(LDKHTLCOutputInCommitment *NONNULL_PTR arg) {
+static inline uint64_t HTLCOutputInCommitment_clone_ptr(LDKHTLCOutputInCommitment *NONNULL_PTR arg) {
        LDKHTLCOutputInCommitment ret_var = HTLCOutputInCommitment_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_HTLCOutputInCommitment_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKHTLCOutputInCommitment arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = HTLCOutputInCommitment_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_HTLCOutputInCommitment_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKHTLCOutputInCommitment orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKHTLCOutputInCommitment ret_var = HTLCOutputInCommitment_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_HTLCOutputInCommitment_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKHTLCOutputInCommitment obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = HTLCOutputInCommitment_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -39552,18 +37917,20 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_HTLCOutputInCommitment_1rea
        LDKCResult_HTLCOutputInCommitmentDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HTLCOutputInCommitmentDecodeErrorZ), "LDKCResult_HTLCOutputInCommitmentDecodeErrorZ");
        *ret_conv = HTLCOutputInCommitment_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_get_1htlc_1redeemscript(JNIEnv *env, jclass clz, int64_t htlc, jboolean opt_anchors, int64_t keys) {
        LDKHTLCOutputInCommitment htlc_conv;
-       htlc_conv.inner = (void*)(htlc & (~1));
-       htlc_conv.is_owned = false;
+       htlc_conv.inner = untag_ptr(htlc);
+       htlc_conv.is_owned = ptr_is_owned(htlc);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(htlc_conv);
+       htlc_conv.is_owned = false;
        LDKTxCreationKeys keys_conv;
-       keys_conv.inner = (void*)(keys & (~1));
-       keys_conv.is_owned = false;
+       keys_conv.inner = untag_ptr(keys);
+       keys_conv.is_owned = ptr_is_owned(keys);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(keys_conv);
+       keys_conv.is_owned = false;
        LDKCVec_u8Z ret_var = get_htlc_redeemscript(&htlc_conv, opt_anchors, &keys_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -39591,9 +37958,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_build_1htlc_1transactio
        (*env)->GetByteArrayRegion(env, commitment_txid, 0, 32, commitment_txid_arr);
        unsigned char (*commitment_txid_ref)[32] = &commitment_txid_arr;
        LDKHTLCOutputInCommitment htlc_conv;
-       htlc_conv.inner = (void*)(htlc & (~1));
-       htlc_conv.is_owned = false;
+       htlc_conv.inner = untag_ptr(htlc);
+       htlc_conv.is_owned = ptr_is_owned(htlc);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(htlc_conv);
+       htlc_conv.is_owned = false;
        LDKPublicKey broadcaster_delayed_payment_key_ref;
        CHECK((*env)->GetArrayLength(env, broadcaster_delayed_payment_key) == 33);
        (*env)->GetByteArrayRegion(env, broadcaster_delayed_payment_key, 0, 33, broadcaster_delayed_payment_key_ref.compressed_form);
@@ -39620,37 +37988,34 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_get_1anchor_1redeemscri
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelTransactionParameters_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKChannelTransactionParameters this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ChannelTransactionParameters_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelTransactionParameters_1get_1holder_1pubkeys(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelTransactionParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelPublicKeys ret_var = ChannelTransactionParameters_get_holder_pubkeys(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelTransactionParameters_1set_1holder_1pubkeys(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelTransactionParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelPublicKeys val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = ChannelPublicKeys_clone(&val_conv);
        ChannelTransactionParameters_set_holder_pubkeys(&this_ptr_conv, val_conv);
@@ -39658,65 +38023,64 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelTransactionParameters_1
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_ChannelTransactionParameters_1get_1holder_1selected_1contest_1delay(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelTransactionParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int16_t ret_conv = ChannelTransactionParameters_get_holder_selected_contest_delay(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelTransactionParameters_1set_1holder_1selected_1contest_1delay(JNIEnv *env, jclass clz, int64_t this_ptr, int16_t val) {
        LDKChannelTransactionParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelTransactionParameters_set_holder_selected_contest_delay(&this_ptr_conv, val);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelTransactionParameters_1get_1is_1outbound_1from_1holder(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelTransactionParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        jboolean ret_conv = ChannelTransactionParameters_get_is_outbound_from_holder(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelTransactionParameters_1set_1is_1outbound_1from_1holder(JNIEnv *env, jclass clz, int64_t this_ptr, jboolean val) {
        LDKChannelTransactionParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelTransactionParameters_set_is_outbound_from_holder(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelTransactionParameters_1get_1counterparty_1parameters(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelTransactionParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCounterpartyChannelTransactionParameters ret_var = ChannelTransactionParameters_get_counterparty_parameters(&this_ptr_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelTransactionParameters_1set_1counterparty_1parameters(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelTransactionParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCounterpartyChannelTransactionParameters val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = CounterpartyChannelTransactionParameters_clone(&val_conv);
        ChannelTransactionParameters_set_counterparty_parameters(&this_ptr_conv, val_conv);
@@ -39724,31 +38088,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelTransactionParameters_1
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelTransactionParameters_1get_1funding_1outpoint(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelTransactionParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKOutPoint ret_var = ChannelTransactionParameters_get_funding_outpoint(&this_ptr_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelTransactionParameters_1set_1funding_1outpoint(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelTransactionParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKOutPoint val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = OutPoint_clone(&val_conv);
        ChannelTransactionParameters_set_funding_outpoint(&this_ptr_conv, val_conv);
@@ -39756,122 +38115,108 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelTransactionParameters_1
 
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_ChannelTransactionParameters_1get_1opt_1anchors(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelTransactionParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        jclass ret_conv = LDKCOption_NoneZ_to_java(env, ChannelTransactionParameters_get_opt_anchors(&this_ptr_conv));
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelTransactionParameters_1set_1opt_1anchors(JNIEnv *env, jclass clz, int64_t this_ptr, jclass val) {
        LDKChannelTransactionParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCOption_NoneZ val_conv = LDKCOption_NoneZ_from_java(env, val);
        ChannelTransactionParameters_set_opt_anchors(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelTransactionParameters_1new(JNIEnv *env, jclass clz, int64_t holder_pubkeys_arg, int16_t holder_selected_contest_delay_arg, jboolean is_outbound_from_holder_arg, int64_t counterparty_parameters_arg, int64_t funding_outpoint_arg, jclass opt_anchors_arg) {
        LDKChannelPublicKeys holder_pubkeys_arg_conv;
-       holder_pubkeys_arg_conv.inner = (void*)(holder_pubkeys_arg & (~1));
-       holder_pubkeys_arg_conv.is_owned = (holder_pubkeys_arg & 1) || (holder_pubkeys_arg == 0);
+       holder_pubkeys_arg_conv.inner = untag_ptr(holder_pubkeys_arg);
+       holder_pubkeys_arg_conv.is_owned = ptr_is_owned(holder_pubkeys_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(holder_pubkeys_arg_conv);
        holder_pubkeys_arg_conv = ChannelPublicKeys_clone(&holder_pubkeys_arg_conv);
        LDKCounterpartyChannelTransactionParameters counterparty_parameters_arg_conv;
-       counterparty_parameters_arg_conv.inner = (void*)(counterparty_parameters_arg & (~1));
-       counterparty_parameters_arg_conv.is_owned = (counterparty_parameters_arg & 1) || (counterparty_parameters_arg == 0);
+       counterparty_parameters_arg_conv.inner = untag_ptr(counterparty_parameters_arg);
+       counterparty_parameters_arg_conv.is_owned = ptr_is_owned(counterparty_parameters_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(counterparty_parameters_arg_conv);
        counterparty_parameters_arg_conv = CounterpartyChannelTransactionParameters_clone(&counterparty_parameters_arg_conv);
        LDKOutPoint funding_outpoint_arg_conv;
-       funding_outpoint_arg_conv.inner = (void*)(funding_outpoint_arg & (~1));
-       funding_outpoint_arg_conv.is_owned = (funding_outpoint_arg & 1) || (funding_outpoint_arg == 0);
+       funding_outpoint_arg_conv.inner = untag_ptr(funding_outpoint_arg);
+       funding_outpoint_arg_conv.is_owned = ptr_is_owned(funding_outpoint_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(funding_outpoint_arg_conv);
        funding_outpoint_arg_conv = OutPoint_clone(&funding_outpoint_arg_conv);
        LDKCOption_NoneZ opt_anchors_arg_conv = LDKCOption_NoneZ_from_java(env, opt_anchors_arg);
        LDKChannelTransactionParameters ret_var = ChannelTransactionParameters_new(holder_pubkeys_arg_conv, holder_selected_contest_delay_arg, is_outbound_from_holder_arg, counterparty_parameters_arg_conv, funding_outpoint_arg_conv, opt_anchors_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t ChannelTransactionParameters_clone_ptr(LDKChannelTransactionParameters *NONNULL_PTR arg) {
+static inline uint64_t ChannelTransactionParameters_clone_ptr(LDKChannelTransactionParameters *NONNULL_PTR arg) {
        LDKChannelTransactionParameters ret_var = ChannelTransactionParameters_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelTransactionParameters_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKChannelTransactionParameters arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ChannelTransactionParameters_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelTransactionParameters_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKChannelTransactionParameters orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKChannelTransactionParameters ret_var = ChannelTransactionParameters_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CounterpartyChannelTransactionParameters_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKCounterpartyChannelTransactionParameters this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        CounterpartyChannelTransactionParameters_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CounterpartyChannelTransactionParameters_1get_1pubkeys(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKCounterpartyChannelTransactionParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelPublicKeys ret_var = CounterpartyChannelTransactionParameters_get_pubkeys(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CounterpartyChannelTransactionParameters_1set_1pubkeys(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKCounterpartyChannelTransactionParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelPublicKeys val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = ChannelPublicKeys_clone(&val_conv);
        CounterpartyChannelTransactionParameters_set_pubkeys(&this_ptr_conv, val_conv);
@@ -39879,125 +38224,108 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CounterpartyChannelTransaction
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_CounterpartyChannelTransactionParameters_1get_1selected_1contest_1delay(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKCounterpartyChannelTransactionParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int16_t ret_conv = CounterpartyChannelTransactionParameters_get_selected_contest_delay(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CounterpartyChannelTransactionParameters_1set_1selected_1contest_1delay(JNIEnv *env, jclass clz, int64_t this_ptr, int16_t val) {
        LDKCounterpartyChannelTransactionParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        CounterpartyChannelTransactionParameters_set_selected_contest_delay(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CounterpartyChannelTransactionParameters_1new(JNIEnv *env, jclass clz, int64_t pubkeys_arg, int16_t selected_contest_delay_arg) {
        LDKChannelPublicKeys pubkeys_arg_conv;
-       pubkeys_arg_conv.inner = (void*)(pubkeys_arg & (~1));
-       pubkeys_arg_conv.is_owned = (pubkeys_arg & 1) || (pubkeys_arg == 0);
+       pubkeys_arg_conv.inner = untag_ptr(pubkeys_arg);
+       pubkeys_arg_conv.is_owned = ptr_is_owned(pubkeys_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(pubkeys_arg_conv);
        pubkeys_arg_conv = ChannelPublicKeys_clone(&pubkeys_arg_conv);
        LDKCounterpartyChannelTransactionParameters ret_var = CounterpartyChannelTransactionParameters_new(pubkeys_arg_conv, selected_contest_delay_arg);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t CounterpartyChannelTransactionParameters_clone_ptr(LDKCounterpartyChannelTransactionParameters *NONNULL_PTR arg) {
+static inline uint64_t CounterpartyChannelTransactionParameters_clone_ptr(LDKCounterpartyChannelTransactionParameters *NONNULL_PTR arg) {
        LDKCounterpartyChannelTransactionParameters ret_var = CounterpartyChannelTransactionParameters_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CounterpartyChannelTransactionParameters_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKCounterpartyChannelTransactionParameters arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = CounterpartyChannelTransactionParameters_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CounterpartyChannelTransactionParameters_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKCounterpartyChannelTransactionParameters orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKCounterpartyChannelTransactionParameters ret_var = CounterpartyChannelTransactionParameters_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelTransactionParameters_1is_1populated(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelTransactionParameters this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = ChannelTransactionParameters_is_populated(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelTransactionParameters_1as_1holder_1broadcastable(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelTransactionParameters this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKDirectedChannelTransactionParameters ret_var = ChannelTransactionParameters_as_holder_broadcastable(&this_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelTransactionParameters_1as_1counterparty_1broadcastable(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelTransactionParameters this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKDirectedChannelTransactionParameters ret_var = ChannelTransactionParameters_as_counterparty_broadcastable(&this_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_CounterpartyChannelTransactionParameters_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKCounterpartyChannelTransactionParameters obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = CounterpartyChannelTransactionParameters_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -40012,14 +38340,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CounterpartyChannelTransact
        LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ), "LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ");
        *ret_conv = CounterpartyChannelTransactionParameters_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelTransactionParameters_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKChannelTransactionParameters obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = ChannelTransactionParameters_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -40034,108 +38363,100 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelTransactionParameter
        LDKCResult_ChannelTransactionParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelTransactionParametersDecodeErrorZ), "LDKCResult_ChannelTransactionParametersDecodeErrorZ");
        *ret_conv = ChannelTransactionParameters_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_DirectedChannelTransactionParameters_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKDirectedChannelTransactionParameters this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        DirectedChannelTransactionParameters_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DirectedChannelTransactionParameters_1broadcaster_1pubkeys(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKDirectedChannelTransactionParameters this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKChannelPublicKeys ret_var = DirectedChannelTransactionParameters_broadcaster_pubkeys(&this_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DirectedChannelTransactionParameters_1countersignatory_1pubkeys(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKDirectedChannelTransactionParameters this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKChannelPublicKeys ret_var = DirectedChannelTransactionParameters_countersignatory_pubkeys(&this_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_DirectedChannelTransactionParameters_1contest_1delay(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKDirectedChannelTransactionParameters this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int16_t ret_conv = DirectedChannelTransactionParameters_contest_delay(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_DirectedChannelTransactionParameters_1is_1outbound(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKDirectedChannelTransactionParameters this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = DirectedChannelTransactionParameters_is_outbound(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DirectedChannelTransactionParameters_1funding_1outpoint(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKDirectedChannelTransactionParameters this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKOutPoint ret_var = DirectedChannelTransactionParameters_funding_outpoint(&this_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_DirectedChannelTransactionParameters_1opt_1anchors(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKDirectedChannelTransactionParameters this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = DirectedChannelTransactionParameters_opt_anchors(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_HolderCommitmentTransaction_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKHolderCommitmentTransaction this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        HolderCommitmentTransaction_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_HolderCommitmentTransaction_1get_1counterparty_1sig(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKHolderCommitmentTransaction this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 64);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 64, HolderCommitmentTransaction_get_counterparty_sig(&this_ptr_conv).compact_form);
        return ret_arr;
@@ -40143,9 +38464,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_HolderCommitmentTransac
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_HolderCommitmentTransaction_1set_1counterparty_1sig(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKHolderCommitmentTransaction this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKSignature val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 64);
        (*env)->GetByteArrayRegion(env, val, 0, 64, val_ref.compact_form);
@@ -40154,9 +38476,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_HolderCommitmentTransaction_1s
 
 JNIEXPORT jobjectArray JNICALL Java_org_ldk_impl_bindings_HolderCommitmentTransaction_1get_1counterparty_1htlc_1sigs(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKHolderCommitmentTransaction this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_SignatureZ ret_var = HolderCommitmentTransaction_get_counterparty_htlc_sigs(&this_ptr_conv);
        jobjectArray ret_arr = NULL;
        ret_arr = (*env)->NewObjectArray(env, ret_var.datalen, arr_of_B_clz, NULL);
@@ -40173,9 +38496,10 @@ JNIEXPORT jobjectArray JNICALL Java_org_ldk_impl_bindings_HolderCommitmentTransa
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_HolderCommitmentTransaction_1set_1counterparty_1htlc_1sigs(JNIEnv *env, jclass clz, int64_t this_ptr, jobjectArray val) {
        LDKHolderCommitmentTransaction this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_SignatureZ val_constr;
        val_constr.datalen = (*env)->GetArrayLength(env, val);
        if (val_constr.datalen > 0)
@@ -40192,49 +38516,42 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_HolderCommitmentTransaction_1s
        HolderCommitmentTransaction_set_counterparty_htlc_sigs(&this_ptr_conv, val_constr);
 }
 
-static inline uintptr_t HolderCommitmentTransaction_clone_ptr(LDKHolderCommitmentTransaction *NONNULL_PTR arg) {
+static inline uint64_t HolderCommitmentTransaction_clone_ptr(LDKHolderCommitmentTransaction *NONNULL_PTR arg) {
        LDKHolderCommitmentTransaction ret_var = HolderCommitmentTransaction_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_HolderCommitmentTransaction_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKHolderCommitmentTransaction arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = HolderCommitmentTransaction_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_HolderCommitmentTransaction_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKHolderCommitmentTransaction orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKHolderCommitmentTransaction ret_var = HolderCommitmentTransaction_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_HolderCommitmentTransaction_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKHolderCommitmentTransaction obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = HolderCommitmentTransaction_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -40249,13 +38566,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_HolderCommitmentTransaction
        LDKCResult_HolderCommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_HolderCommitmentTransactionDecodeErrorZ), "LDKCResult_HolderCommitmentTransactionDecodeErrorZ");
        *ret_conv = HolderCommitmentTransaction_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_HolderCommitmentTransaction_1new(JNIEnv *env, jclass clz, int64_t commitment_tx, int8_tArray counterparty_sig, jobjectArray counterparty_htlc_sigs, int8_tArray holder_funding_key, int8_tArray counterparty_funding_key) {
        LDKCommitmentTransaction commitment_tx_conv;
-       commitment_tx_conv.inner = (void*)(commitment_tx & (~1));
-       commitment_tx_conv.is_owned = (commitment_tx & 1) || (commitment_tx == 0);
+       commitment_tx_conv.inner = untag_ptr(commitment_tx);
+       commitment_tx_conv.is_owned = ptr_is_owned(commitment_tx);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(commitment_tx_conv);
        commitment_tx_conv = CommitmentTransaction_clone(&commitment_tx_conv);
        LDKSignature counterparty_sig_ref;
@@ -40282,29 +38599,25 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_HolderCommitmentTransaction
        (*env)->GetByteArrayRegion(env, counterparty_funding_key, 0, 33, counterparty_funding_key_ref.compressed_form);
        LDKHolderCommitmentTransaction ret_var = HolderCommitmentTransaction_new(commitment_tx_conv, counterparty_sig_ref, counterparty_htlc_sigs_constr, holder_funding_key_ref, counterparty_funding_key_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_BuiltCommitmentTransaction_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKBuiltCommitmentTransaction this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        BuiltCommitmentTransaction_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_BuiltCommitmentTransaction_1get_1transaction(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKBuiltCommitmentTransaction this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKTransaction ret_var = BuiltCommitmentTransaction_get_transaction(&this_ptr_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -40314,9 +38627,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_BuiltCommitmentTransact
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_BuiltCommitmentTransaction_1set_1transaction(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKBuiltCommitmentTransaction this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKTransaction val_ref;
        val_ref.datalen = (*env)->GetArrayLength(env, val);
        val_ref.data = MALLOC(val_ref.datalen, "LDKTransaction Bytes");
@@ -40327,9 +38641,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_BuiltCommitmentTransaction_1se
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_BuiltCommitmentTransaction_1get_1txid(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKBuiltCommitmentTransaction this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *BuiltCommitmentTransaction_get_txid(&this_ptr_conv));
        return ret_arr;
@@ -40337,9 +38652,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_BuiltCommitmentTransact
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_BuiltCommitmentTransaction_1set_1txid(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKBuiltCommitmentTransaction this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -40357,59 +38673,47 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BuiltCommitmentTransaction_
        (*env)->GetByteArrayRegion(env, txid_arg, 0, 32, txid_arg_ref.data);
        LDKBuiltCommitmentTransaction ret_var = BuiltCommitmentTransaction_new(transaction_arg_ref, txid_arg_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t BuiltCommitmentTransaction_clone_ptr(LDKBuiltCommitmentTransaction *NONNULL_PTR arg) {
+static inline uint64_t BuiltCommitmentTransaction_clone_ptr(LDKBuiltCommitmentTransaction *NONNULL_PTR arg) {
        LDKBuiltCommitmentTransaction ret_var = BuiltCommitmentTransaction_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BuiltCommitmentTransaction_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKBuiltCommitmentTransaction arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = BuiltCommitmentTransaction_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BuiltCommitmentTransaction_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKBuiltCommitmentTransaction orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKBuiltCommitmentTransaction ret_var = BuiltCommitmentTransaction_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_BuiltCommitmentTransaction_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKBuiltCommitmentTransaction obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = BuiltCommitmentTransaction_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -40424,14 +38728,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BuiltCommitmentTransaction_
        LDKCResult_BuiltCommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_BuiltCommitmentTransactionDecodeErrorZ), "LDKCResult_BuiltCommitmentTransactionDecodeErrorZ");
        *ret_conv = BuiltCommitmentTransaction_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_BuiltCommitmentTransaction_1get_1sighash_1all(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray funding_redeemscript, int64_t channel_value_satoshis) {
        LDKBuiltCommitmentTransaction this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKu8slice funding_redeemscript_ref;
        funding_redeemscript_ref.datalen = (*env)->GetArrayLength(env, funding_redeemscript);
        funding_redeemscript_ref.data = (*env)->GetByteArrayElements (env, funding_redeemscript, NULL);
@@ -40443,9 +38748,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_BuiltCommitmentTransact
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_BuiltCommitmentTransaction_1sign(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray funding_key, int8_tArray funding_redeemscript, int64_t channel_value_satoshis) {
        LDKBuiltCommitmentTransaction this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        unsigned char funding_key_arr[32];
        CHECK((*env)->GetArrayLength(env, funding_key) == 32);
        (*env)->GetByteArrayRegion(env, funding_key, 0, 32, funding_key_arr);
@@ -40461,55 +38767,48 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_BuiltCommitmentTransact
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ClosingTransaction_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKClosingTransaction this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ClosingTransaction_free(this_obj_conv);
 }
 
-static inline uintptr_t ClosingTransaction_clone_ptr(LDKClosingTransaction *NONNULL_PTR arg) {
+static inline uint64_t ClosingTransaction_clone_ptr(LDKClosingTransaction *NONNULL_PTR arg) {
        LDKClosingTransaction ret_var = ClosingTransaction_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosingTransaction_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKClosingTransaction arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ClosingTransaction_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosingTransaction_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKClosingTransaction orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKClosingTransaction ret_var = ClosingTransaction_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosingTransaction_1hash(JNIEnv *env, jclass clz, int64_t o) {
        LDKClosingTransaction o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = false;
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
+       o_conv.is_owned = false;
        int64_t ret_conv = ClosingTransaction_hash(&o_conv);
        return ret_conv;
 }
@@ -40524,77 +38823,72 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosingTransaction_1new(JNI
        to_counterparty_script_ref.data = MALLOC(to_counterparty_script_ref.datalen, "LDKCVec_u8Z Bytes");
        (*env)->GetByteArrayRegion(env, to_counterparty_script, 0, to_counterparty_script_ref.datalen, to_counterparty_script_ref.data);
        LDKOutPoint funding_outpoint_conv;
-       funding_outpoint_conv.inner = (void*)(funding_outpoint & (~1));
-       funding_outpoint_conv.is_owned = (funding_outpoint & 1) || (funding_outpoint == 0);
+       funding_outpoint_conv.inner = untag_ptr(funding_outpoint);
+       funding_outpoint_conv.is_owned = ptr_is_owned(funding_outpoint);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(funding_outpoint_conv);
        funding_outpoint_conv = OutPoint_clone(&funding_outpoint_conv);
        LDKClosingTransaction ret_var = ClosingTransaction_new(to_holder_value_sat, to_counterparty_value_sat, to_holder_script_ref, to_counterparty_script_ref, funding_outpoint_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosingTransaction_1trust(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKClosingTransaction this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKTrustedClosingTransaction ret_var = ClosingTransaction_trust(&this_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosingTransaction_1verify(JNIEnv *env, jclass clz, int64_t this_arg, int64_t funding_outpoint) {
        LDKClosingTransaction this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKOutPoint funding_outpoint_conv;
-       funding_outpoint_conv.inner = (void*)(funding_outpoint & (~1));
-       funding_outpoint_conv.is_owned = (funding_outpoint & 1) || (funding_outpoint == 0);
+       funding_outpoint_conv.inner = untag_ptr(funding_outpoint);
+       funding_outpoint_conv.is_owned = ptr_is_owned(funding_outpoint);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(funding_outpoint_conv);
        funding_outpoint_conv = OutPoint_clone(&funding_outpoint_conv);
        LDKCResult_TrustedClosingTransactionNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_TrustedClosingTransactionNoneZ), "LDKCResult_TrustedClosingTransactionNoneZ");
        *ret_conv = ClosingTransaction_verify(&this_arg_conv, funding_outpoint_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosingTransaction_1to_1holder_1value_1sat(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKClosingTransaction this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int64_t ret_conv = ClosingTransaction_to_holder_value_sat(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosingTransaction_1to_1counterparty_1value_1sat(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKClosingTransaction this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int64_t ret_conv = ClosingTransaction_to_counterparty_value_sat(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ClosingTransaction_1to_1holder_1script(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKClosingTransaction this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKu8slice ret_var = ClosingTransaction_to_holder_script(&this_arg_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -40603,9 +38897,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ClosingTransaction_1to_
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ClosingTransaction_1to_1counterparty_1script(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKClosingTransaction this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKu8slice ret_var = ClosingTransaction_to_counterparty_script(&this_arg_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -40614,17 +38909,18 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ClosingTransaction_1to_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_TrustedClosingTransaction_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKTrustedClosingTransaction this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        TrustedClosingTransaction_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_TrustedClosingTransaction_1built_1transaction(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKTrustedClosingTransaction this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKTransaction ret_var = TrustedClosingTransaction_built_transaction(&this_arg_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -40634,9 +38930,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_TrustedClosingTransacti
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_TrustedClosingTransaction_1get_1sighash_1all(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray funding_redeemscript, int64_t channel_value_satoshis) {
        LDKTrustedClosingTransaction this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKu8slice funding_redeemscript_ref;
        funding_redeemscript_ref.datalen = (*env)->GetArrayLength(env, funding_redeemscript);
        funding_redeemscript_ref.data = (*env)->GetByteArrayElements (env, funding_redeemscript, NULL);
@@ -40648,9 +38945,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_TrustedClosingTransacti
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_TrustedClosingTransaction_1sign(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray funding_key, int8_tArray funding_redeemscript, int64_t channel_value_satoshis) {
        LDKTrustedClosingTransaction this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        unsigned char funding_key_arr[32];
        CHECK((*env)->GetArrayLength(env, funding_key) == 32);
        (*env)->GetByteArrayRegion(env, funding_key, 0, 32, funding_key_arr);
@@ -40666,55 +38964,48 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_TrustedClosingTransacti
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CommitmentTransaction_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKCommitmentTransaction this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        CommitmentTransaction_free(this_obj_conv);
 }
 
-static inline uintptr_t CommitmentTransaction_clone_ptr(LDKCommitmentTransaction *NONNULL_PTR arg) {
+static inline uint64_t CommitmentTransaction_clone_ptr(LDKCommitmentTransaction *NONNULL_PTR arg) {
        LDKCommitmentTransaction ret_var = CommitmentTransaction_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CommitmentTransaction_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKCommitmentTransaction arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = CommitmentTransaction_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CommitmentTransaction_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKCommitmentTransaction orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKCommitmentTransaction ret_var = CommitmentTransaction_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_CommitmentTransaction_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKCommitmentTransaction obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = CommitmentTransaction_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -40729,97 +39020,102 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CommitmentTransaction_1read
        LDKCResult_CommitmentTransactionDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CommitmentTransactionDecodeErrorZ), "LDKCResult_CommitmentTransactionDecodeErrorZ");
        *ret_conv = CommitmentTransaction_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CommitmentTransaction_1commitment_1number(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKCommitmentTransaction this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int64_t ret_conv = CommitmentTransaction_commitment_number(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CommitmentTransaction_1to_1broadcaster_1value_1sat(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKCommitmentTransaction this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int64_t ret_conv = CommitmentTransaction_to_broadcaster_value_sat(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CommitmentTransaction_1to_1countersignatory_1value_1sat(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKCommitmentTransaction this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int64_t ret_conv = CommitmentTransaction_to_countersignatory_value_sat(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_CommitmentTransaction_1feerate_1per_1kw(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKCommitmentTransaction this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int32_t ret_conv = CommitmentTransaction_feerate_per_kw(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CommitmentTransaction_1trust(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKCommitmentTransaction this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKTrustedCommitmentTransaction ret_var = CommitmentTransaction_trust(&this_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CommitmentTransaction_1verify(JNIEnv *env, jclass clz, int64_t this_arg, int64_t channel_parameters, int64_t broadcaster_keys, int64_t countersignatory_keys) {
        LDKCommitmentTransaction this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKDirectedChannelTransactionParameters channel_parameters_conv;
-       channel_parameters_conv.inner = (void*)(channel_parameters & (~1));
-       channel_parameters_conv.is_owned = false;
+       channel_parameters_conv.inner = untag_ptr(channel_parameters);
+       channel_parameters_conv.is_owned = ptr_is_owned(channel_parameters);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_parameters_conv);
+       channel_parameters_conv.is_owned = false;
        LDKChannelPublicKeys broadcaster_keys_conv;
-       broadcaster_keys_conv.inner = (void*)(broadcaster_keys & (~1));
-       broadcaster_keys_conv.is_owned = false;
+       broadcaster_keys_conv.inner = untag_ptr(broadcaster_keys);
+       broadcaster_keys_conv.is_owned = ptr_is_owned(broadcaster_keys);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(broadcaster_keys_conv);
+       broadcaster_keys_conv.is_owned = false;
        LDKChannelPublicKeys countersignatory_keys_conv;
-       countersignatory_keys_conv.inner = (void*)(countersignatory_keys & (~1));
-       countersignatory_keys_conv.is_owned = false;
+       countersignatory_keys_conv.inner = untag_ptr(countersignatory_keys);
+       countersignatory_keys_conv.is_owned = ptr_is_owned(countersignatory_keys);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(countersignatory_keys_conv);
+       countersignatory_keys_conv.is_owned = false;
        LDKCResult_TrustedCommitmentTransactionNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_TrustedCommitmentTransactionNoneZ), "LDKCResult_TrustedCommitmentTransactionNoneZ");
        *ret_conv = CommitmentTransaction_verify(&this_arg_conv, &channel_parameters_conv, &broadcaster_keys_conv, &countersignatory_keys_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_TrustedCommitmentTransaction_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKTrustedCommitmentTransaction this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        TrustedCommitmentTransaction_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_TrustedCommitmentTransaction_1txid(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKTrustedCommitmentTransaction this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, TrustedCommitmentTransaction_txid(&this_arg_conv).data);
        return ret_arr;
@@ -40827,63 +39123,58 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_TrustedCommitmentTransa
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_TrustedCommitmentTransaction_1built_1transaction(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKTrustedCommitmentTransaction this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKBuiltCommitmentTransaction ret_var = TrustedCommitmentTransaction_built_transaction(&this_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_TrustedCommitmentTransaction_1keys(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKTrustedCommitmentTransaction this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKTxCreationKeys ret_var = TrustedCommitmentTransaction_keys(&this_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_TrustedCommitmentTransaction_1opt_1anchors(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKTrustedCommitmentTransaction this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = TrustedCommitmentTransaction_opt_anchors(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_TrustedCommitmentTransaction_1get_1htlc_1sigs(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray htlc_base_key, int64_t channel_parameters) {
        LDKTrustedCommitmentTransaction this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        unsigned char htlc_base_key_arr[32];
        CHECK((*env)->GetArrayLength(env, htlc_base_key) == 32);
        (*env)->GetByteArrayRegion(env, htlc_base_key, 0, 32, htlc_base_key_arr);
        unsigned char (*htlc_base_key_ref)[32] = &htlc_base_key_arr;
        LDKDirectedChannelTransactionParameters channel_parameters_conv;
-       channel_parameters_conv.inner = (void*)(channel_parameters & (~1));
-       channel_parameters_conv.is_owned = false;
+       channel_parameters_conv.inner = untag_ptr(channel_parameters);
+       channel_parameters_conv.is_owned = ptr_is_owned(channel_parameters);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_parameters_conv);
+       channel_parameters_conv.is_owned = false;
        LDKCResult_CVec_SignatureZNoneZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_SignatureZNoneZ), "LDKCResult_CVec_SignatureZNoneZ");
        *ret_conv = TrustedCommitmentTransaction_get_htlc_sigs(&this_arg_conv, htlc_base_key_ref, &channel_parameters_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_get_1commitment_1transaction_1number_1obscure_1factor(JNIEnv *env, jclass clz, int8_tArray broadcaster_payment_basepoint, int8_tArray countersignatory_payment_basepoint, jboolean outbound_from_broadcaster) {
@@ -40899,295 +39190,265 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_get_1commitment_1transactio
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKInitFeatures a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKInitFeatures b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKNodeFeatures a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKNodeFeatures b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelFeatures_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKChannelFeatures a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKChannelFeatures b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = ChannelFeatures_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InvoiceFeatures_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKInvoiceFeatures a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKInvoiceFeatures b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = InvoiceFeatures_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelTypeFeatures_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKChannelTypeFeatures a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKChannelTypeFeatures b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = ChannelTypeFeatures_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
-static inline uintptr_t InitFeatures_clone_ptr(LDKInitFeatures *NONNULL_PTR arg) {
+static inline uint64_t InitFeatures_clone_ptr(LDKInitFeatures *NONNULL_PTR arg) {
        LDKInitFeatures ret_var = InitFeatures_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InitFeatures_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKInitFeatures arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = InitFeatures_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InitFeatures_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKInitFeatures orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKInitFeatures ret_var = InitFeatures_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t NodeFeatures_clone_ptr(LDKNodeFeatures *NONNULL_PTR arg) {
+static inline uint64_t NodeFeatures_clone_ptr(LDKNodeFeatures *NONNULL_PTR arg) {
        LDKNodeFeatures ret_var = NodeFeatures_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKNodeFeatures arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = NodeFeatures_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKNodeFeatures orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKNodeFeatures ret_var = NodeFeatures_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t ChannelFeatures_clone_ptr(LDKChannelFeatures *NONNULL_PTR arg) {
+static inline uint64_t ChannelFeatures_clone_ptr(LDKChannelFeatures *NONNULL_PTR arg) {
        LDKChannelFeatures ret_var = ChannelFeatures_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelFeatures_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKChannelFeatures arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ChannelFeatures_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelFeatures_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKChannelFeatures orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKChannelFeatures ret_var = ChannelFeatures_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t InvoiceFeatures_clone_ptr(LDKInvoiceFeatures *NONNULL_PTR arg) {
+static inline uint64_t InvoiceFeatures_clone_ptr(LDKInvoiceFeatures *NONNULL_PTR arg) {
        LDKInvoiceFeatures ret_var = InvoiceFeatures_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InvoiceFeatures_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKInvoiceFeatures arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = InvoiceFeatures_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InvoiceFeatures_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKInvoiceFeatures orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKInvoiceFeatures ret_var = InvoiceFeatures_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t ChannelTypeFeatures_clone_ptr(LDKChannelTypeFeatures *NONNULL_PTR arg) {
+static inline uint64_t ChannelTypeFeatures_clone_ptr(LDKChannelTypeFeatures *NONNULL_PTR arg) {
        LDKChannelTypeFeatures ret_var = ChannelTypeFeatures_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelTypeFeatures_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKChannelTypeFeatures arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ChannelTypeFeatures_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelTypeFeatures_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKChannelTypeFeatures orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKChannelTypeFeatures ret_var = ChannelTypeFeatures_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKInitFeatures this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        InitFeatures_free(this_obj_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKNodeFeatures this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        NodeFeatures_free(this_obj_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelFeatures_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKChannelFeatures this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ChannelFeatures_free(this_obj_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InvoiceFeatures_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKInvoiceFeatures this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        InvoiceFeatures_free(this_obj_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelTypeFeatures_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKChannelTypeFeatures this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ChannelTypeFeatures_free(this_obj_conv);
 }
@@ -41195,34 +39456,25 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelTypeFeatures_1free(JNIE
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InitFeatures_1empty(JNIEnv *env, jclass clz) {
        LDKInitFeatures ret_var = InitFeatures_empty();
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InitFeatures_1known(JNIEnv *env, jclass clz) {
        LDKInitFeatures ret_var = InitFeatures_known();
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1requires_1unknown_1bits(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_requires_unknown_bits(&this_arg_conv);
        return ret_conv;
 }
@@ -41230,34 +39482,25 @@ JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1requires_1un
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1empty(JNIEnv *env, jclass clz) {
        LDKNodeFeatures ret_var = NodeFeatures_empty();
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1known(JNIEnv *env, jclass clz) {
        LDKNodeFeatures ret_var = NodeFeatures_known();
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1requires_1unknown_1bits(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_requires_unknown_bits(&this_arg_conv);
        return ret_conv;
 }
@@ -41265,34 +39508,25 @@ JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1requires_1un
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelFeatures_1empty(JNIEnv *env, jclass clz) {
        LDKChannelFeatures ret_var = ChannelFeatures_empty();
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelFeatures_1known(JNIEnv *env, jclass clz) {
        LDKChannelFeatures ret_var = ChannelFeatures_known();
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelFeatures_1requires_1unknown_1bits(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = ChannelFeatures_requires_unknown_bits(&this_arg_conv);
        return ret_conv;
 }
@@ -41300,34 +39534,25 @@ JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelFeatures_1requires_
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InvoiceFeatures_1empty(JNIEnv *env, jclass clz) {
        LDKInvoiceFeatures ret_var = InvoiceFeatures_empty();
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InvoiceFeatures_1known(JNIEnv *env, jclass clz) {
        LDKInvoiceFeatures ret_var = InvoiceFeatures_known();
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InvoiceFeatures_1requires_1unknown_1bits(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoiceFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InvoiceFeatures_requires_unknown_bits(&this_arg_conv);
        return ret_conv;
 }
@@ -41335,43 +39560,35 @@ JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InvoiceFeatures_1requires_
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelTypeFeatures_1empty(JNIEnv *env, jclass clz) {
        LDKChannelTypeFeatures ret_var = ChannelTypeFeatures_empty();
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelTypeFeatures_1known(JNIEnv *env, jclass clz) {
        LDKChannelTypeFeatures ret_var = ChannelTypeFeatures_known();
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelTypeFeatures_1requires_1unknown_1bits(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelTypeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = ChannelTypeFeatures_requires_unknown_bits(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_InitFeatures_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKInitFeatures obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = InitFeatures_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -41386,14 +39603,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InitFeatures_1read(JNIEnv *
        LDKCResult_InitFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InitFeaturesDecodeErrorZ), "LDKCResult_InitFeaturesDecodeErrorZ");
        *ret_conv = InitFeatures_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelFeatures_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKChannelFeatures obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = ChannelFeatures_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -41408,14 +39626,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelFeatures_1read(JNIEn
        LDKCResult_ChannelFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelFeaturesDecodeErrorZ), "LDKCResult_ChannelFeaturesDecodeErrorZ");
        *ret_conv = ChannelFeatures_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKNodeFeatures obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = NodeFeatures_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -41430,14 +39649,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1read(JNIEnv *
        LDKCResult_NodeFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeFeaturesDecodeErrorZ), "LDKCResult_NodeFeaturesDecodeErrorZ");
        *ret_conv = NodeFeatures_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_InvoiceFeatures_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKInvoiceFeatures obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = InvoiceFeatures_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -41452,14 +39672,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InvoiceFeatures_1read(JNIEn
        LDKCResult_InvoiceFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceFeaturesDecodeErrorZ), "LDKCResult_InvoiceFeaturesDecodeErrorZ");
        *ret_conv = InvoiceFeatures_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelTypeFeatures_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKChannelTypeFeatures obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = ChannelTypeFeatures_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -41474,1147 +39695,1267 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelTypeFeatures_1read(J
        LDKCResult_ChannelTypeFeaturesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelTypeFeaturesDecodeErrorZ), "LDKCResult_ChannelTypeFeaturesDecodeErrorZ");
        *ret_conv = ChannelTypeFeatures_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1data_1loss_1protect_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_data_loss_protect_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1data_1loss_1protect_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_data_loss_protect_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1supports_1data_1loss_1protect(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_supports_data_loss_protect(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1data_1loss_1protect_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_data_loss_protect_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1data_1loss_1protect_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_data_loss_protect_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1supports_1data_1loss_1protect(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_supports_data_loss_protect(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1requires_1data_1loss_1protect(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_requires_data_loss_protect(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1requires_1data_1loss_1protect(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_requires_data_loss_protect(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1initial_1routing_1sync_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_initial_routing_sync_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1initial_1routing_1sync_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_initial_routing_sync_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1initial_1routing_1sync(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_initial_routing_sync(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1upfront_1shutdown_1script_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_upfront_shutdown_script_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1upfront_1shutdown_1script_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_upfront_shutdown_script_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1supports_1upfront_1shutdown_1script(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_supports_upfront_shutdown_script(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1upfront_1shutdown_1script_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_upfront_shutdown_script_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1upfront_1shutdown_1script_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_upfront_shutdown_script_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1supports_1upfront_1shutdown_1script(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_supports_upfront_shutdown_script(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1requires_1upfront_1shutdown_1script(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_requires_upfront_shutdown_script(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1requires_1upfront_1shutdown_1script(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_requires_upfront_shutdown_script(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1gossip_1queries_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_gossip_queries_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1gossip_1queries_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_gossip_queries_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1supports_1gossip_1queries(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_supports_gossip_queries(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1gossip_1queries_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_gossip_queries_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1gossip_1queries_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_gossip_queries_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1supports_1gossip_1queries(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_supports_gossip_queries(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1requires_1gossip_1queries(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_requires_gossip_queries(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1requires_1gossip_1queries(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_requires_gossip_queries(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1variable_1length_1onion_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_variable_length_onion_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1variable_1length_1onion_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_variable_length_onion_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1supports_1variable_1length_1onion(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_supports_variable_length_onion(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1variable_1length_1onion_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_variable_length_onion_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1variable_1length_1onion_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_variable_length_onion_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1supports_1variable_1length_1onion(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_supports_variable_length_onion(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InvoiceFeatures_1set_1variable_1length_1onion_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoiceFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InvoiceFeatures_set_variable_length_onion_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InvoiceFeatures_1set_1variable_1length_1onion_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoiceFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InvoiceFeatures_set_variable_length_onion_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InvoiceFeatures_1supports_1variable_1length_1onion(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoiceFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InvoiceFeatures_supports_variable_length_onion(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1requires_1variable_1length_1onion(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_requires_variable_length_onion(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1requires_1variable_1length_1onion(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_requires_variable_length_onion(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InvoiceFeatures_1requires_1variable_1length_1onion(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoiceFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InvoiceFeatures_requires_variable_length_onion(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1static_1remote_1key_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_static_remote_key_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1static_1remote_1key_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_static_remote_key_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1supports_1static_1remote_1key(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_supports_static_remote_key(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1static_1remote_1key_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_static_remote_key_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1static_1remote_1key_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_static_remote_key_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1supports_1static_1remote_1key(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_supports_static_remote_key(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelTypeFeatures_1set_1static_1remote_1key_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelTypeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        ChannelTypeFeatures_set_static_remote_key_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelTypeFeatures_1set_1static_1remote_1key_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelTypeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        ChannelTypeFeatures_set_static_remote_key_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelTypeFeatures_1supports_1static_1remote_1key(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelTypeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = ChannelTypeFeatures_supports_static_remote_key(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1requires_1static_1remote_1key(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_requires_static_remote_key(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1requires_1static_1remote_1key(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_requires_static_remote_key(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelTypeFeatures_1requires_1static_1remote_1key(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelTypeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = ChannelTypeFeatures_requires_static_remote_key(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1payment_1secret_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_payment_secret_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1payment_1secret_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_payment_secret_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1supports_1payment_1secret(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_supports_payment_secret(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1payment_1secret_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_payment_secret_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1payment_1secret_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_payment_secret_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1supports_1payment_1secret(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_supports_payment_secret(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InvoiceFeatures_1set_1payment_1secret_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoiceFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InvoiceFeatures_set_payment_secret_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InvoiceFeatures_1set_1payment_1secret_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoiceFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InvoiceFeatures_set_payment_secret_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InvoiceFeatures_1supports_1payment_1secret(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoiceFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InvoiceFeatures_supports_payment_secret(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1requires_1payment_1secret(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_requires_payment_secret(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1requires_1payment_1secret(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_requires_payment_secret(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InvoiceFeatures_1requires_1payment_1secret(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoiceFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InvoiceFeatures_requires_payment_secret(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1basic_1mpp_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_basic_mpp_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1basic_1mpp_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_basic_mpp_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1supports_1basic_1mpp(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_supports_basic_mpp(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1basic_1mpp_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_basic_mpp_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1basic_1mpp_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_basic_mpp_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1supports_1basic_1mpp(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_supports_basic_mpp(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InvoiceFeatures_1set_1basic_1mpp_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoiceFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InvoiceFeatures_set_basic_mpp_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InvoiceFeatures_1set_1basic_1mpp_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoiceFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InvoiceFeatures_set_basic_mpp_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InvoiceFeatures_1supports_1basic_1mpp(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoiceFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InvoiceFeatures_supports_basic_mpp(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1requires_1basic_1mpp(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_requires_basic_mpp(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1requires_1basic_1mpp(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_requires_basic_mpp(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InvoiceFeatures_1requires_1basic_1mpp(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoiceFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InvoiceFeatures_requires_basic_mpp(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1wumbo_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_wumbo_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1wumbo_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_wumbo_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1supports_1wumbo(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_supports_wumbo(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1wumbo_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_wumbo_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1wumbo_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_wumbo_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1supports_1wumbo(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_supports_wumbo(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1requires_1wumbo(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_requires_wumbo(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1requires_1wumbo(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_requires_wumbo(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1shutdown_1any_1segwit_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_shutdown_any_segwit_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1shutdown_1any_1segwit_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_shutdown_any_segwit_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1supports_1shutdown_1anysegwit(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_supports_shutdown_anysegwit(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1shutdown_1any_1segwit_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_shutdown_any_segwit_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1shutdown_1any_1segwit_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_shutdown_any_segwit_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1supports_1shutdown_1anysegwit(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_supports_shutdown_anysegwit(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1requires_1shutdown_1anysegwit(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_requires_shutdown_anysegwit(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1requires_1shutdown_1anysegwit(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_requires_shutdown_anysegwit(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1channel_1type_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_channel_type_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1channel_1type_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_channel_type_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1supports_1channel_1type(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_supports_channel_type(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1channel_1type_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_channel_type_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1channel_1type_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_channel_type_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1supports_1channel_1type(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_supports_channel_type(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1requires_1channel_1type(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_requires_channel_type(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1requires_1channel_1type(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_requires_channel_type(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1scid_1privacy_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_scid_privacy_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1scid_1privacy_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_scid_privacy_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1supports_1scid_1privacy(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_supports_scid_privacy(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1scid_1privacy_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_scid_privacy_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1scid_1privacy_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_scid_privacy_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1supports_1scid_1privacy(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_supports_scid_privacy(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelTypeFeatures_1set_1scid_1privacy_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelTypeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        ChannelTypeFeatures_set_scid_privacy_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelTypeFeatures_1set_1scid_1privacy_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelTypeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        ChannelTypeFeatures_set_scid_privacy_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelTypeFeatures_1supports_1scid_1privacy(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelTypeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = ChannelTypeFeatures_supports_scid_privacy(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1requires_1scid_1privacy(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_requires_scid_privacy(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1requires_1scid_1privacy(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_requires_scid_privacy(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelTypeFeatures_1requires_1scid_1privacy(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelTypeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = ChannelTypeFeatures_requires_scid_privacy(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1zero_1conf_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_zero_conf_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InitFeatures_1set_1zero_1conf_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        InitFeatures_set_zero_conf_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1supports_1zero_1conf(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_supports_zero_conf(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1zero_1conf_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_zero_conf_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1zero_1conf_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_zero_conf_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1supports_1zero_1conf(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_supports_zero_conf(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelTypeFeatures_1set_1zero_1conf_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelTypeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        ChannelTypeFeatures_set_zero_conf_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelTypeFeatures_1set_1zero_1conf_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelTypeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        ChannelTypeFeatures_set_zero_conf_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelTypeFeatures_1supports_1zero_1conf(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelTypeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = ChannelTypeFeatures_supports_zero_conf(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InitFeatures_1requires_1zero_1conf(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInitFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = InitFeatures_requires_zero_conf(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1requires_1zero_1conf(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_requires_zero_conf(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelTypeFeatures_1requires_1zero_1conf(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelTypeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = ChannelTypeFeatures_requires_zero_conf(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1keysend_1optional(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_keysend_optional(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1set_1keysend_1required(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NodeFeatures_set_keysend_required(&this_arg_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1supports_1keysend(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_supports_keysend(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_NodeFeatures_1requires_1keysend(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeFeatures this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = NodeFeatures_requires_keysend(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ShutdownScript_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKShutdownScript this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ShutdownScript_free(this_obj_conv);
 }
 
-static inline uintptr_t ShutdownScript_clone_ptr(LDKShutdownScript *NONNULL_PTR arg) {
+static inline uint64_t ShutdownScript_clone_ptr(LDKShutdownScript *NONNULL_PTR arg) {
        LDKShutdownScript ret_var = ShutdownScript_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ShutdownScript_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKShutdownScript arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ShutdownScript_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ShutdownScript_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKShutdownScript orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKShutdownScript ret_var = ShutdownScript_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InvalidShutdownScript_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKInvalidShutdownScript this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        InvalidShutdownScript_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_InvalidShutdownScript_1get_1script(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKInvalidShutdownScript this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKu8slice ret_var = InvalidShutdownScript_get_script(&this_ptr_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -42623,9 +40964,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_InvalidShutdownScript_1
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InvalidShutdownScript_1set_1script(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKInvalidShutdownScript this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_u8Z val_ref;
        val_ref.datalen = (*env)->GetArrayLength(env, val);
        val_ref.data = MALLOC(val_ref.datalen, "LDKCVec_u8Z Bytes");
@@ -42640,59 +40982,47 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InvalidShutdownScript_1new(
        (*env)->GetByteArrayRegion(env, script_arg, 0, script_arg_ref.datalen, script_arg_ref.data);
        LDKInvalidShutdownScript ret_var = InvalidShutdownScript_new(script_arg_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t InvalidShutdownScript_clone_ptr(LDKInvalidShutdownScript *NONNULL_PTR arg) {
+static inline uint64_t InvalidShutdownScript_clone_ptr(LDKInvalidShutdownScript *NONNULL_PTR arg) {
        LDKInvalidShutdownScript ret_var = InvalidShutdownScript_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InvalidShutdownScript_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKInvalidShutdownScript arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = InvalidShutdownScript_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InvalidShutdownScript_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKInvalidShutdownScript orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKInvalidShutdownScript ret_var = InvalidShutdownScript_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ShutdownScript_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKShutdownScript obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = ShutdownScript_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -42707,7 +41037,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ShutdownScript_1read(JNIEnv
        LDKCResult_ShutdownScriptDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownScriptDecodeErrorZ), "LDKCResult_ShutdownScriptDecodeErrorZ");
        *ret_conv = ShutdownScript_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ShutdownScript_1new_1p2wpkh(JNIEnv *env, jclass clz, int8_tArray pubkey_hash) {
@@ -42717,13 +41047,8 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ShutdownScript_1new_1p2wpkh
        unsigned char (*pubkey_hash_ref)[20] = &pubkey_hash_arr;
        LDKShutdownScript ret_var = ShutdownScript_new_p2wpkh(pubkey_hash_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -42734,13 +41059,8 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ShutdownScript_1new_1p2wsh(
        unsigned char (*script_hash_ref)[32] = &script_hash_arr;
        LDKShutdownScript ret_var = ShutdownScript_new_p2wsh(script_hash_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -42752,13 +41072,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ShutdownScript_1new_1witnes
        LDKCResult_ShutdownScriptInvalidShutdownScriptZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownScriptInvalidShutdownScriptZ), "LDKCResult_ShutdownScriptInvalidShutdownScriptZ");
        *ret_conv = ShutdownScript_new_witness_program((LDKWitnessVersion){ ._0 = version }, program_ref);
        (*env)->ReleaseByteArrayElements(env, program, (int8_t*)program_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ShutdownScript_1into_1inner(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKShutdownScript this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = (this_arg & 1) || (this_arg == 0);
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        this_arg_conv = ShutdownScript_clone(&this_arg_conv);
        LDKCVec_u8Z ret_var = ShutdownScript_into_inner(this_arg_conv);
@@ -42770,9 +41090,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ShutdownScript_1into_1i
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ShutdownScript_1as_1legacy_1pubkey(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKShutdownScript this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, ShutdownScript_as_legacy_pubkey(&this_arg_conv).compressed_form);
        return ret_arr;
@@ -42780,100 +41101,94 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ShutdownScript_1as_1leg
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ShutdownScript_1is_1compatible(JNIEnv *env, jclass clz, int64_t this_arg, int64_t features) {
        LDKShutdownScript this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKInitFeatures features_conv;
-       features_conv.inner = (void*)(features & (~1));
-       features_conv.is_owned = false;
+       features_conv.inner = untag_ptr(features);
+       features_conv.is_owned = ptr_is_owned(features);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(features_conv);
+       features_conv.is_owned = false;
        jboolean ret_conv = ShutdownScript_is_compatible(&this_arg_conv, &features_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CustomMessageReader_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKCustomMessageReader this_ptr_conv = *(LDKCustomMessageReader*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        CustomMessageReader_free(this_ptr_conv);
 }
 
-static inline uintptr_t Type_clone_ptr(LDKType *NONNULL_PTR arg) {
+static inline uint64_t Type_clone_ptr(LDKType *NONNULL_PTR arg) {
        LDKType* ret_ret = MALLOC(sizeof(LDKType), "LDKType");
        *ret_ret = Type_clone(arg);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Type_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       void* arg_ptr = (void*)(((uintptr_t)arg) & ~1);
-       if (!(arg & 1)) { CHECK_ACCESS(arg_ptr); }
+       void* arg_ptr = untag_ptr(arg);
+       if (ptr_is_owned(arg)) { CHECK_ACCESS(arg_ptr); }
        LDKType* arg_conv = (LDKType*)arg_ptr;
        int64_t ret_conv = Type_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Type_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       void* orig_ptr = (void*)(((uintptr_t)orig) & ~1);
-       if (!(orig & 1)) { CHECK_ACCESS(orig_ptr); }
+       void* orig_ptr = untag_ptr(orig);
+       if (ptr_is_owned(orig)) { CHECK_ACCESS(orig_ptr); }
        LDKType* orig_conv = (LDKType*)orig_ptr;
        LDKType* ret_ret = MALLOC(sizeof(LDKType), "LDKType");
        *ret_ret = Type_clone(orig_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Type_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKType this_ptr_conv = *(LDKType*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        Type_free(this_ptr_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeId_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKNodeId this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        NodeId_free(this_obj_conv);
 }
 
-static inline uintptr_t NodeId_clone_ptr(LDKNodeId *NONNULL_PTR arg) {
+static inline uint64_t NodeId_clone_ptr(LDKNodeId *NONNULL_PTR arg) {
        LDKNodeId ret_var = NodeId_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeId_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKNodeId arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = NodeId_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeId_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKNodeId orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKNodeId ret_var = NodeId_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -42883,21 +41198,17 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeId_1from_1pubkey(JNIEnv
        (*env)->GetByteArrayRegion(env, pubkey, 0, 33, pubkey_ref.compressed_form);
        LDKNodeId ret_var = NodeId_from_pubkey(pubkey_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_NodeId_1as_1slice(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNodeId this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKu8slice ret_var = NodeId_as_slice(&this_arg_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -42906,18 +41217,20 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_NodeId_1as_1slice(JNIEn
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeId_1hash(JNIEnv *env, jclass clz, int64_t o) {
        LDKNodeId o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = false;
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
+       o_conv.is_owned = false;
        int64_t ret_conv = NodeId_hash(&o_conv);
        return ret_conv;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_NodeId_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKNodeId obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = NodeId_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -42932,70 +41245,70 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeId_1read(JNIEnv *env, j
        LDKCResult_NodeIdDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeIdDecodeErrorZ), "LDKCResult_NodeIdDecodeErrorZ");
        *ret_conv = NodeId_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKNetworkGraph this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        NetworkGraph_free(this_obj_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ReadOnlyNetworkGraph_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKReadOnlyNetworkGraph this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ReadOnlyNetworkGraph_free(this_obj_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NetworkUpdate_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKNetworkUpdate this_ptr_conv = *(LDKNetworkUpdate*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        NetworkUpdate_free(this_ptr_conv);
 }
 
-static inline uintptr_t NetworkUpdate_clone_ptr(LDKNetworkUpdate *NONNULL_PTR arg) {
+static inline uint64_t NetworkUpdate_clone_ptr(LDKNetworkUpdate *NONNULL_PTR arg) {
        LDKNetworkUpdate *ret_copy = MALLOC(sizeof(LDKNetworkUpdate), "LDKNetworkUpdate");
        *ret_copy = NetworkUpdate_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkUpdate_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKNetworkUpdate* arg_conv = (LDKNetworkUpdate*)arg;
+       LDKNetworkUpdate* arg_conv = (LDKNetworkUpdate*)untag_ptr(arg);
        int64_t ret_conv = NetworkUpdate_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkUpdate_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKNetworkUpdate* orig_conv = (LDKNetworkUpdate*)orig;
+       LDKNetworkUpdate* orig_conv = (LDKNetworkUpdate*)untag_ptr(orig);
        LDKNetworkUpdate *ret_copy = MALLOC(sizeof(LDKNetworkUpdate), "LDKNetworkUpdate");
        *ret_copy = NetworkUpdate_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkUpdate_1channel_1update_1message(JNIEnv *env, jclass clz, int64_t msg) {
        LDKChannelUpdate msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = (msg & 1) || (msg == 0);
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
        msg_conv = ChannelUpdate_clone(&msg_conv);
        LDKNetworkUpdate *ret_copy = MALLOC(sizeof(LDKNetworkUpdate), "LDKNetworkUpdate");
        *ret_copy = NetworkUpdate_channel_update_message(msg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkUpdate_1channel_1failure(JNIEnv *env, jclass clz, int64_t short_channel_id, jboolean is_permanent) {
        LDKNetworkUpdate *ret_copy = MALLOC(sizeof(LDKNetworkUpdate), "LDKNetworkUpdate");
        *ret_copy = NetworkUpdate_channel_failure(short_channel_id, is_permanent);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -43005,12 +41318,12 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkUpdate_1node_1failur
        (*env)->GetByteArrayRegion(env, node_id, 0, 33, node_id_ref.compressed_form);
        LDKNetworkUpdate *ret_copy = MALLOC(sizeof(LDKNetworkUpdate), "LDKNetworkUpdate");
        *ret_copy = NetworkUpdate_node_failure(node_id_ref, is_permanent);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_NetworkUpdate_1write(JNIEnv *env, jclass clz, int64_t obj) {
-       LDKNetworkUpdate* obj_conv = (LDKNetworkUpdate*)obj;
+       LDKNetworkUpdate* obj_conv = (LDKNetworkUpdate*)untag_ptr(obj);
        LDKCVec_u8Z ret_var = NetworkUpdate_write(obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -43025,23 +41338,24 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkUpdate_1read(JNIEnv
        LDKCResult_COption_NetworkUpdateZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_NetworkUpdateZDecodeErrorZ), "LDKCResult_COption_NetworkUpdateZDecodeErrorZ");
        *ret_conv = NetworkUpdate_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_P2PGossipSync_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKP2PGossipSync this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        P2PGossipSync_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_P2PGossipSync_1new(JNIEnv *env, jclass clz, int64_t network_graph, int64_t chain_access, int64_t logger) {
        LDKNetworkGraph network_graph_conv;
-       network_graph_conv.inner = (void*)(network_graph & (~1));
-       network_graph_conv.is_owned = false;
+       network_graph_conv.inner = untag_ptr(network_graph);
+       network_graph_conv.is_owned = ptr_is_owned(network_graph);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(network_graph_conv);
-       void* chain_access_ptr = (void*)(((uintptr_t)chain_access) & ~1);
+       network_graph_conv.is_owned = false;
+       void* chain_access_ptr = untag_ptr(chain_access);
        CHECK_ACCESS(chain_access_ptr);
        LDKCOption_AccessZ chain_access_conv = *(LDKCOption_AccessZ*)(chain_access_ptr);
        // WARNING: we may need a move here but no clone is available for LDKCOption_AccessZ
@@ -43052,7 +41366,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_P2PGossipSync_1new(JNIEnv *
                        LDKAccess_JCalls_cloned(&chain_access_conv.some);
                }
        }
-       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
+       void* logger_ptr = untag_ptr(logger);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
        if (logger_conv.free == LDKLogger_JCalls_free) {
@@ -43061,22 +41375,18 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_P2PGossipSync_1new(JNIEnv *
        }
        LDKP2PGossipSync ret_var = P2PGossipSync_new(&network_graph_conv, chain_access_conv, logger_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_P2PGossipSync_1add_1chain_1access(JNIEnv *env, jclass clz, int64_t this_arg, int64_t chain_access) {
        LDKP2PGossipSync this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
-       void* chain_access_ptr = (void*)(((uintptr_t)chain_access) & ~1);
+       this_arg_conv.is_owned = false;
+       void* chain_access_ptr = untag_ptr(chain_access);
        CHECK_ACCESS(chain_access_ptr);
        LDKCOption_AccessZ chain_access_conv = *(LDKCOption_AccessZ*)(chain_access_ptr);
        // WARNING: we may need a move here but no clone is available for LDKCOption_AccessZ
@@ -43092,152 +41402,162 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_P2PGossipSync_1add_1chain_1acc
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1as_1EventHandler(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNetworkGraph this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKEventHandler* ret_ret = MALLOC(sizeof(LDKEventHandler), "LDKEventHandler");
        *ret_ret = NetworkGraph_as_EventHandler(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_P2PGossipSync_1as_1RoutingMessageHandler(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKP2PGossipSync this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKRoutingMessageHandler* ret_ret = MALLOC(sizeof(LDKRoutingMessageHandler), "LDKRoutingMessageHandler");
        *ret_ret = P2PGossipSync_as_RoutingMessageHandler(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_P2PGossipSync_1as_1MessageSendEventsProvider(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKP2PGossipSync this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKMessageSendEventsProvider* ret_ret = MALLOC(sizeof(LDKMessageSendEventsProvider), "LDKMessageSendEventsProvider");
        *ret_ret = P2PGossipSync_as_MessageSendEventsProvider(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelUpdateInfo_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKChannelUpdateInfo this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ChannelUpdateInfo_free(this_obj_conv);
 }
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_ChannelUpdateInfo_1get_1last_1update(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelUpdateInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = ChannelUpdateInfo_get_last_update(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelUpdateInfo_1set_1last_1update(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKChannelUpdateInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelUpdateInfo_set_last_update(&this_ptr_conv, val);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelUpdateInfo_1get_1enabled(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelUpdateInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        jboolean ret_conv = ChannelUpdateInfo_get_enabled(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelUpdateInfo_1set_1enabled(JNIEnv *env, jclass clz, int64_t this_ptr, jboolean val) {
        LDKChannelUpdateInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelUpdateInfo_set_enabled(&this_ptr_conv, val);
 }
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_ChannelUpdateInfo_1get_1cltv_1expiry_1delta(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelUpdateInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int16_t ret_conv = ChannelUpdateInfo_get_cltv_expiry_delta(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelUpdateInfo_1set_1cltv_1expiry_1delta(JNIEnv *env, jclass clz, int64_t this_ptr, int16_t val) {
        LDKChannelUpdateInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelUpdateInfo_set_cltv_expiry_delta(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelUpdateInfo_1get_1htlc_1minimum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelUpdateInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ChannelUpdateInfo_get_htlc_minimum_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelUpdateInfo_1set_1htlc_1minimum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelUpdateInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelUpdateInfo_set_htlc_minimum_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelUpdateInfo_1get_1htlc_1maximum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelUpdateInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ChannelUpdateInfo_get_htlc_maximum_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelUpdateInfo_1set_1htlc_1maximum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelUpdateInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelUpdateInfo_set_htlc_maximum_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelUpdateInfo_1get_1fees(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelUpdateInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKRoutingFees ret_var = ChannelUpdateInfo_get_fees(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelUpdateInfo_1set_1fees(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelUpdateInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKRoutingFees val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = RoutingFees_clone(&val_conv);
        ChannelUpdateInfo_set_fees(&this_ptr_conv, val_conv);
@@ -43245,31 +41565,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelUpdateInfo_1set_1fees(J
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelUpdateInfo_1get_1last_1update_1message(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelUpdateInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelUpdate ret_var = ChannelUpdateInfo_get_last_update_message(&this_ptr_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelUpdateInfo_1set_1last_1update_1message(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelUpdateInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelUpdate val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = ChannelUpdate_clone(&val_conv);
        ChannelUpdateInfo_set_last_update_message(&this_ptr_conv, val_conv);
@@ -43277,70 +41592,58 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelUpdateInfo_1set_1last_1
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelUpdateInfo_1new(JNIEnv *env, jclass clz, int32_t last_update_arg, jboolean enabled_arg, int16_t cltv_expiry_delta_arg, int64_t htlc_minimum_msat_arg, int64_t htlc_maximum_msat_arg, int64_t fees_arg, int64_t last_update_message_arg) {
        LDKRoutingFees fees_arg_conv;
-       fees_arg_conv.inner = (void*)(fees_arg & (~1));
-       fees_arg_conv.is_owned = (fees_arg & 1) || (fees_arg == 0);
+       fees_arg_conv.inner = untag_ptr(fees_arg);
+       fees_arg_conv.is_owned = ptr_is_owned(fees_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(fees_arg_conv);
        fees_arg_conv = RoutingFees_clone(&fees_arg_conv);
        LDKChannelUpdate last_update_message_arg_conv;
-       last_update_message_arg_conv.inner = (void*)(last_update_message_arg & (~1));
-       last_update_message_arg_conv.is_owned = (last_update_message_arg & 1) || (last_update_message_arg == 0);
+       last_update_message_arg_conv.inner = untag_ptr(last_update_message_arg);
+       last_update_message_arg_conv.is_owned = ptr_is_owned(last_update_message_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(last_update_message_arg_conv);
        last_update_message_arg_conv = ChannelUpdate_clone(&last_update_message_arg_conv);
        LDKChannelUpdateInfo ret_var = ChannelUpdateInfo_new(last_update_arg, enabled_arg, cltv_expiry_delta_arg, htlc_minimum_msat_arg, htlc_maximum_msat_arg, fees_arg_conv, last_update_message_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t ChannelUpdateInfo_clone_ptr(LDKChannelUpdateInfo *NONNULL_PTR arg) {
+static inline uint64_t ChannelUpdateInfo_clone_ptr(LDKChannelUpdateInfo *NONNULL_PTR arg) {
        LDKChannelUpdateInfo ret_var = ChannelUpdateInfo_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelUpdateInfo_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKChannelUpdateInfo arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ChannelUpdateInfo_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelUpdateInfo_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKChannelUpdateInfo orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKChannelUpdateInfo ret_var = ChannelUpdateInfo_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelUpdateInfo_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKChannelUpdateInfo obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = ChannelUpdateInfo_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -43355,42 +41658,39 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelUpdateInfo_1read(JNI
        LDKCResult_ChannelUpdateInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelUpdateInfoDecodeErrorZ), "LDKCResult_ChannelUpdateInfoDecodeErrorZ");
        *ret_conv = ChannelUpdateInfo_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKChannelInfo this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ChannelInfo_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1get_1features(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelFeatures ret_var = ChannelInfo_get_features(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1set_1features(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelFeatures val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = ChannelFeatures_clone(&val_conv);
        ChannelInfo_set_features(&this_ptr_conv, val_conv);
@@ -43398,29 +41698,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1set_1features(JNI
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1get_1node_1one(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKNodeId ret_var = ChannelInfo_get_node_one(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1set_1node_1one(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKNodeId val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = NodeId_clone(&val_conv);
        ChannelInfo_set_node_one(&this_ptr_conv, val_conv);
@@ -43428,31 +41725,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1set_1node_1one(JN
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1get_1one_1to_1two(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelUpdateInfo ret_var = ChannelInfo_get_one_to_two(&this_ptr_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1set_1one_1to_1two(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelUpdateInfo val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = ChannelUpdateInfo_clone(&val_conv);
        ChannelInfo_set_one_to_two(&this_ptr_conv, val_conv);
@@ -43460,29 +41752,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1set_1one_1to_1two
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1get_1node_1two(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKNodeId ret_var = ChannelInfo_get_node_two(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1set_1node_1two(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKNodeId val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = NodeId_clone(&val_conv);
        ChannelInfo_set_node_two(&this_ptr_conv, val_conv);
@@ -43490,31 +41779,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1set_1node_1two(JN
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1get_1two_1to_1one(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelUpdateInfo ret_var = ChannelInfo_get_two_to_one(&this_ptr_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1set_1two_1to_1one(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelUpdateInfo val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = ChannelUpdateInfo_clone(&val_conv);
        ChannelInfo_set_two_to_one(&this_ptr_conv, val_conv);
@@ -43522,121 +41806,105 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1set_1two_1to_1one
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1get_1capacity_1sats(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = ChannelInfo_get_capacity_sats(&this_ptr_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1set_1capacity_1sats(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
-       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)val) & ~1));
+       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(val));
        ChannelInfo_set_capacity_sats(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1get_1announcement_1message(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelAnnouncement ret_var = ChannelInfo_get_announcement_message(&this_ptr_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1set_1announcement_1message(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelAnnouncement val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = ChannelAnnouncement_clone(&val_conv);
        ChannelInfo_set_announcement_message(&this_ptr_conv, val_conv);
 }
 
-static inline uintptr_t ChannelInfo_clone_ptr(LDKChannelInfo *NONNULL_PTR arg) {
+static inline uint64_t ChannelInfo_clone_ptr(LDKChannelInfo *NONNULL_PTR arg) {
        LDKChannelInfo ret_var = ChannelInfo_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKChannelInfo arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ChannelInfo_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKChannelInfo orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKChannelInfo ret_var = ChannelInfo_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1get_1directional_1info(JNIEnv *env, jclass clz, int64_t this_arg, int8_t channel_flags) {
        LDKChannelInfo this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKChannelUpdateInfo ret_var = ChannelInfo_get_directional_info(&this_arg_conv, channel_flags);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKChannelInfo obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = ChannelInfo_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -43651,305 +41919,284 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1read(JNIEnv *e
        LDKCResult_ChannelInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ChannelInfoDecodeErrorZ), "LDKCResult_ChannelInfoDecodeErrorZ");
        *ret_conv = ChannelInfo_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_DirectedChannelInfo_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKDirectedChannelInfo this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        DirectedChannelInfo_free(this_obj_conv);
 }
 
-static inline uintptr_t DirectedChannelInfo_clone_ptr(LDKDirectedChannelInfo *NONNULL_PTR arg) {
+static inline uint64_t DirectedChannelInfo_clone_ptr(LDKDirectedChannelInfo *NONNULL_PTR arg) {
        LDKDirectedChannelInfo ret_var = DirectedChannelInfo_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DirectedChannelInfo_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKDirectedChannelInfo arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = DirectedChannelInfo_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DirectedChannelInfo_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKDirectedChannelInfo orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKDirectedChannelInfo ret_var = DirectedChannelInfo_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DirectedChannelInfo_1channel(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKDirectedChannelInfo this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKChannelInfo ret_var = DirectedChannelInfo_channel(&this_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DirectedChannelInfo_1direction(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKDirectedChannelInfo this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKChannelUpdateInfo ret_var = DirectedChannelInfo_direction(&this_arg_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DirectedChannelInfo_1htlc_1maximum_1msat(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKDirectedChannelInfo this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int64_t ret_conv = DirectedChannelInfo_htlc_maximum_msat(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DirectedChannelInfo_1effective_1capacity(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKDirectedChannelInfo this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKEffectiveCapacity *ret_copy = MALLOC(sizeof(LDKEffectiveCapacity), "LDKEffectiveCapacity");
        *ret_copy = DirectedChannelInfo_effective_capacity(&this_arg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_EffectiveCapacity_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKEffectiveCapacity this_ptr_conv = *(LDKEffectiveCapacity*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        EffectiveCapacity_free(this_ptr_conv);
 }
 
-static inline uintptr_t EffectiveCapacity_clone_ptr(LDKEffectiveCapacity *NONNULL_PTR arg) {
+static inline uint64_t EffectiveCapacity_clone_ptr(LDKEffectiveCapacity *NONNULL_PTR arg) {
        LDKEffectiveCapacity *ret_copy = MALLOC(sizeof(LDKEffectiveCapacity), "LDKEffectiveCapacity");
        *ret_copy = EffectiveCapacity_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_EffectiveCapacity_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKEffectiveCapacity* arg_conv = (LDKEffectiveCapacity*)arg;
+       LDKEffectiveCapacity* arg_conv = (LDKEffectiveCapacity*)untag_ptr(arg);
        int64_t ret_conv = EffectiveCapacity_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_EffectiveCapacity_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKEffectiveCapacity* orig_conv = (LDKEffectiveCapacity*)orig;
+       LDKEffectiveCapacity* orig_conv = (LDKEffectiveCapacity*)untag_ptr(orig);
        LDKEffectiveCapacity *ret_copy = MALLOC(sizeof(LDKEffectiveCapacity), "LDKEffectiveCapacity");
        *ret_copy = EffectiveCapacity_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_EffectiveCapacity_1exact_1liquidity(JNIEnv *env, jclass clz, int64_t liquidity_msat) {
        LDKEffectiveCapacity *ret_copy = MALLOC(sizeof(LDKEffectiveCapacity), "LDKEffectiveCapacity");
        *ret_copy = EffectiveCapacity_exact_liquidity(liquidity_msat);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_EffectiveCapacity_1maximum_1htlc(JNIEnv *env, jclass clz, int64_t amount_msat) {
        LDKEffectiveCapacity *ret_copy = MALLOC(sizeof(LDKEffectiveCapacity), "LDKEffectiveCapacity");
        *ret_copy = EffectiveCapacity_maximum_htlc(amount_msat);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_EffectiveCapacity_1total(JNIEnv *env, jclass clz, int64_t capacity_msat, int64_t htlc_maximum_msat) {
-       void* htlc_maximum_msat_ptr = (void*)(((uintptr_t)htlc_maximum_msat) & ~1);
+       void* htlc_maximum_msat_ptr = untag_ptr(htlc_maximum_msat);
        CHECK_ACCESS(htlc_maximum_msat_ptr);
        LDKCOption_u64Z htlc_maximum_msat_conv = *(LDKCOption_u64Z*)(htlc_maximum_msat_ptr);
-       htlc_maximum_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)htlc_maximum_msat) & ~1));
+       htlc_maximum_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(htlc_maximum_msat));
        LDKEffectiveCapacity *ret_copy = MALLOC(sizeof(LDKEffectiveCapacity), "LDKEffectiveCapacity");
        *ret_copy = EffectiveCapacity_total(capacity_msat, htlc_maximum_msat_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_EffectiveCapacity_1infinite(JNIEnv *env, jclass clz) {
        LDKEffectiveCapacity *ret_copy = MALLOC(sizeof(LDKEffectiveCapacity), "LDKEffectiveCapacity");
        *ret_copy = EffectiveCapacity_infinite();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_EffectiveCapacity_1unknown(JNIEnv *env, jclass clz) {
        LDKEffectiveCapacity *ret_copy = MALLOC(sizeof(LDKEffectiveCapacity), "LDKEffectiveCapacity");
        *ret_copy = EffectiveCapacity_unknown();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_EffectiveCapacity_1as_1msat(JNIEnv *env, jclass clz, int64_t this_arg) {
-       LDKEffectiveCapacity* this_arg_conv = (LDKEffectiveCapacity*)this_arg;
+       LDKEffectiveCapacity* this_arg_conv = (LDKEffectiveCapacity*)untag_ptr(this_arg);
        int64_t ret_conv = EffectiveCapacity_as_msat(this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RoutingFees_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKRoutingFees this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        RoutingFees_free(this_obj_conv);
 }
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_RoutingFees_1get_1base_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRoutingFees this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = RoutingFees_get_base_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RoutingFees_1set_1base_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKRoutingFees this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        RoutingFees_set_base_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_RoutingFees_1get_1proportional_1millionths(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRoutingFees this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = RoutingFees_get_proportional_millionths(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RoutingFees_1set_1proportional_1millionths(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKRoutingFees this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        RoutingFees_set_proportional_millionths(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RoutingFees_1new(JNIEnv *env, jclass clz, int32_t base_msat_arg, int32_t proportional_millionths_arg) {
        LDKRoutingFees ret_var = RoutingFees_new(base_msat_arg, proportional_millionths_arg);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_RoutingFees_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKRoutingFees a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKRoutingFees b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = RoutingFees_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
-static inline uintptr_t RoutingFees_clone_ptr(LDKRoutingFees *NONNULL_PTR arg) {
+static inline uint64_t RoutingFees_clone_ptr(LDKRoutingFees *NONNULL_PTR arg) {
        LDKRoutingFees ret_var = RoutingFees_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RoutingFees_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKRoutingFees arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = RoutingFees_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RoutingFees_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKRoutingFees orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKRoutingFees ret_var = RoutingFees_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RoutingFees_1hash(JNIEnv *env, jclass clz, int64_t o) {
        LDKRoutingFees o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = false;
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
+       o_conv.is_owned = false;
        int64_t ret_conv = RoutingFees_hash(&o_conv);
        return ret_conv;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_RoutingFees_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKRoutingFees obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = RoutingFees_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -43964,42 +42211,39 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RoutingFees_1read(JNIEnv *e
        LDKCResult_RoutingFeesDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RoutingFeesDecodeErrorZ), "LDKCResult_RoutingFeesDecodeErrorZ");
        *ret_conv = RoutingFees_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKNodeAnnouncementInfo this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        NodeAnnouncementInfo_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1get_1features(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKNodeAnnouncementInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKNodeFeatures ret_var = NodeAnnouncementInfo_get_features(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1set_1features(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKNodeAnnouncementInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKNodeFeatures val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = NodeFeatures_clone(&val_conv);
        NodeAnnouncementInfo_set_features(&this_ptr_conv, val_conv);
@@ -44007,26 +42251,29 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1set_1fea
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1get_1last_1update(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKNodeAnnouncementInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = NodeAnnouncementInfo_get_last_update(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1set_1last_1update(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKNodeAnnouncementInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        NodeAnnouncementInfo_set_last_update(&this_ptr_conv, val);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1get_1rgb(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKNodeAnnouncementInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 3);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 3, *NodeAnnouncementInfo_get_rgb(&this_ptr_conv));
        return ret_arr;
@@ -44034,9 +42281,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1g
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1set_1rgb(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKNodeAnnouncementInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThreeBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 3);
        (*env)->GetByteArrayRegion(env, val, 0, 3, val_ref.data);
@@ -44045,29 +42293,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1set_1rgb
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1get_1alias(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKNodeAnnouncementInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKNodeAlias ret_var = NodeAnnouncementInfo_get_alias(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1set_1alias(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKNodeAnnouncementInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKNodeAlias val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = NodeAlias_clone(&val_conv);
        NodeAnnouncementInfo_set_alias(&this_ptr_conv, val_conv);
@@ -44075,9 +42320,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1set_1ali
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1get_1addresses(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKNodeAnnouncementInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_NetAddressZ ret_var = NodeAnnouncementInfo_get_addresses(&this_ptr_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -44085,7 +42331,7 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1
        for (size_t m = 0; m < ret_var.datalen; m++) {
                LDKNetAddress *ret_conv_12_copy = MALLOC(sizeof(LDKNetAddress), "LDKNetAddress");
                *ret_conv_12_copy = ret_var.data[m];
-               int64_t ret_conv_12_ref = (uintptr_t)ret_conv_12_copy;
+               int64_t ret_conv_12_ref = tag_ptr(ret_conv_12_copy, true);
                ret_arr_ptr[m] = ret_conv_12_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
@@ -44095,9 +42341,10 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1set_1addresses(JNIEnv *env, jclass clz, int64_t this_ptr, int64_tArray val) {
        LDKNodeAnnouncementInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_NetAddressZ val_constr;
        val_constr.datalen = (*env)->GetArrayLength(env, val);
        if (val_constr.datalen > 0)
@@ -44107,10 +42354,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1set_1add
        int64_t* val_vals = (*env)->GetLongArrayElements (env, val, NULL);
        for (size_t m = 0; m < val_constr.datalen; m++) {
                int64_t val_conv_12 = val_vals[m];
-               void* val_conv_12_ptr = (void*)(((uintptr_t)val_conv_12) & ~1);
+               void* val_conv_12_ptr = untag_ptr(val_conv_12);
                CHECK_ACCESS(val_conv_12_ptr);
                LDKNetAddress val_conv_12_conv = *(LDKNetAddress*)(val_conv_12_ptr);
-               val_conv_12_conv = NetAddress_clone((LDKNetAddress*)(((uintptr_t)val_conv_12) & ~1));
+               val_conv_12_conv = NetAddress_clone((LDKNetAddress*)untag_ptr(val_conv_12));
                val_constr.data[m] = val_conv_12_conv;
        }
        (*env)->ReleaseLongArrayElements(env, val, val_vals, 0);
@@ -44119,31 +42366,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1set_1add
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1get_1announcement_1message(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKNodeAnnouncementInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKNodeAnnouncement ret_var = NodeAnnouncementInfo_get_announcement_message(&this_ptr_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1set_1announcement_1message(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKNodeAnnouncementInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKNodeAnnouncement val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = NodeAnnouncement_clone(&val_conv);
        NodeAnnouncementInfo_set_announcement_message(&this_ptr_conv, val_conv);
@@ -44151,16 +42393,16 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1set_1ann
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1new(JNIEnv *env, jclass clz, int64_t features_arg, int32_t last_update_arg, int8_tArray rgb_arg, int64_t alias_arg, int64_tArray addresses_arg, int64_t announcement_message_arg) {
        LDKNodeFeatures features_arg_conv;
-       features_arg_conv.inner = (void*)(features_arg & (~1));
-       features_arg_conv.is_owned = (features_arg & 1) || (features_arg == 0);
+       features_arg_conv.inner = untag_ptr(features_arg);
+       features_arg_conv.is_owned = ptr_is_owned(features_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(features_arg_conv);
        features_arg_conv = NodeFeatures_clone(&features_arg_conv);
        LDKThreeBytes rgb_arg_ref;
        CHECK((*env)->GetArrayLength(env, rgb_arg) == 3);
        (*env)->GetByteArrayRegion(env, rgb_arg, 0, 3, rgb_arg_ref.data);
        LDKNodeAlias alias_arg_conv;
-       alias_arg_conv.inner = (void*)(alias_arg & (~1));
-       alias_arg_conv.is_owned = (alias_arg & 1) || (alias_arg == 0);
+       alias_arg_conv.inner = untag_ptr(alias_arg);
+       alias_arg_conv.is_owned = ptr_is_owned(alias_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(alias_arg_conv);
        alias_arg_conv = NodeAlias_clone(&alias_arg_conv);
        LDKCVec_NetAddressZ addresses_arg_constr;
@@ -44172,72 +42414,60 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1new(J
        int64_t* addresses_arg_vals = (*env)->GetLongArrayElements (env, addresses_arg, NULL);
        for (size_t m = 0; m < addresses_arg_constr.datalen; m++) {
                int64_t addresses_arg_conv_12 = addresses_arg_vals[m];
-               void* addresses_arg_conv_12_ptr = (void*)(((uintptr_t)addresses_arg_conv_12) & ~1);
+               void* addresses_arg_conv_12_ptr = untag_ptr(addresses_arg_conv_12);
                CHECK_ACCESS(addresses_arg_conv_12_ptr);
                LDKNetAddress addresses_arg_conv_12_conv = *(LDKNetAddress*)(addresses_arg_conv_12_ptr);
                addresses_arg_constr.data[m] = addresses_arg_conv_12_conv;
        }
        (*env)->ReleaseLongArrayElements(env, addresses_arg, addresses_arg_vals, 0);
        LDKNodeAnnouncement announcement_message_arg_conv;
-       announcement_message_arg_conv.inner = (void*)(announcement_message_arg & (~1));
-       announcement_message_arg_conv.is_owned = (announcement_message_arg & 1) || (announcement_message_arg == 0);
+       announcement_message_arg_conv.inner = untag_ptr(announcement_message_arg);
+       announcement_message_arg_conv.is_owned = ptr_is_owned(announcement_message_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(announcement_message_arg_conv);
        announcement_message_arg_conv = NodeAnnouncement_clone(&announcement_message_arg_conv);
        LDKNodeAnnouncementInfo ret_var = NodeAnnouncementInfo_new(features_arg_conv, last_update_arg, rgb_arg_ref, alias_arg_conv, addresses_arg_constr, announcement_message_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t NodeAnnouncementInfo_clone_ptr(LDKNodeAnnouncementInfo *NONNULL_PTR arg) {
+static inline uint64_t NodeAnnouncementInfo_clone_ptr(LDKNodeAnnouncementInfo *NONNULL_PTR arg) {
        LDKNodeAnnouncementInfo ret_var = NodeAnnouncementInfo_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKNodeAnnouncementInfo arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = NodeAnnouncementInfo_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKNodeAnnouncementInfo orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKNodeAnnouncementInfo ret_var = NodeAnnouncementInfo_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKNodeAnnouncementInfo obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = NodeAnnouncementInfo_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -44252,22 +42482,23 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeAnnouncementInfo_1read(
        LDKCResult_NodeAnnouncementInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAnnouncementInfoDecodeErrorZ), "LDKCResult_NodeAnnouncementInfoDecodeErrorZ");
        *ret_conv = NodeAnnouncementInfo_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeAlias_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKNodeAlias this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        NodeAlias_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_NodeAlias_1get_1a(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKNodeAlias this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *NodeAlias_get_a(&this_ptr_conv));
        return ret_arr;
@@ -44275,9 +42506,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_NodeAlias_1get_1a(JNIEn
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeAlias_1set_1a(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKNodeAlias this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKThirtyTwoBytes val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 32);
        (*env)->GetByteArrayRegion(env, val, 0, 32, val_ref.data);
@@ -44290,59 +42522,47 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeAlias_1new(JNIEnv *env,
        (*env)->GetByteArrayRegion(env, a_arg, 0, 32, a_arg_ref.data);
        LDKNodeAlias ret_var = NodeAlias_new(a_arg_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t NodeAlias_clone_ptr(LDKNodeAlias *NONNULL_PTR arg) {
+static inline uint64_t NodeAlias_clone_ptr(LDKNodeAlias *NONNULL_PTR arg) {
        LDKNodeAlias ret_var = NodeAlias_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeAlias_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKNodeAlias arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = NodeAlias_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeAlias_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKNodeAlias orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKNodeAlias ret_var = NodeAlias_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_NodeAlias_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKNodeAlias obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = NodeAlias_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -44357,22 +42577,23 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeAlias_1read(JNIEnv *env
        LDKCResult_NodeAliasDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeAliasDecodeErrorZ), "LDKCResult_NodeAliasDecodeErrorZ");
        *ret_conv = NodeAlias_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeInfo_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKNodeInfo this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        NodeInfo_free(this_obj_conv);
 }
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_NodeInfo_1get_1channels(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKNodeInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_u64Z ret_var = NodeInfo_get_channels(&this_ptr_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -44388,9 +42609,10 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_NodeInfo_1get_1channel
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeInfo_1set_1channels(JNIEnv *env, jclass clz, int64_t this_ptr, int64_tArray val) {
        LDKNodeInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_u64Z val_constr;
        val_constr.datalen = (*env)->GetArrayLength(env, val);
        if (val_constr.datalen > 0)
@@ -44408,31 +42630,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeInfo_1set_1channels(JNIEnv
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeInfo_1get_1lowest_1inbound_1channel_1fees(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKNodeInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKRoutingFees ret_var = NodeInfo_get_lowest_inbound_channel_fees(&this_ptr_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeInfo_1set_1lowest_1inbound_1channel_1fees(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKNodeInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKRoutingFees val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = RoutingFees_clone(&val_conv);
        NodeInfo_set_lowest_inbound_channel_fees(&this_ptr_conv, val_conv);
@@ -44440,31 +42657,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeInfo_1set_1lowest_1inbound
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeInfo_1get_1announcement_1info(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKNodeInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKNodeAnnouncementInfo ret_var = NodeInfo_get_announcement_info(&this_ptr_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NodeInfo_1set_1announcement_1info(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKNodeInfo this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKNodeAnnouncementInfo val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = NodeAnnouncementInfo_clone(&val_conv);
        NodeInfo_set_announcement_info(&this_ptr_conv, val_conv);
@@ -44484,70 +42696,58 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeInfo_1new(JNIEnv *env,
        }
        (*env)->ReleaseLongArrayElements(env, channels_arg, channels_arg_vals, 0);
        LDKRoutingFees lowest_inbound_channel_fees_arg_conv;
-       lowest_inbound_channel_fees_arg_conv.inner = (void*)(lowest_inbound_channel_fees_arg & (~1));
-       lowest_inbound_channel_fees_arg_conv.is_owned = (lowest_inbound_channel_fees_arg & 1) || (lowest_inbound_channel_fees_arg == 0);
+       lowest_inbound_channel_fees_arg_conv.inner = untag_ptr(lowest_inbound_channel_fees_arg);
+       lowest_inbound_channel_fees_arg_conv.is_owned = ptr_is_owned(lowest_inbound_channel_fees_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(lowest_inbound_channel_fees_arg_conv);
        lowest_inbound_channel_fees_arg_conv = RoutingFees_clone(&lowest_inbound_channel_fees_arg_conv);
        LDKNodeAnnouncementInfo announcement_info_arg_conv;
-       announcement_info_arg_conv.inner = (void*)(announcement_info_arg & (~1));
-       announcement_info_arg_conv.is_owned = (announcement_info_arg & 1) || (announcement_info_arg == 0);
+       announcement_info_arg_conv.inner = untag_ptr(announcement_info_arg);
+       announcement_info_arg_conv.is_owned = ptr_is_owned(announcement_info_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(announcement_info_arg_conv);
        announcement_info_arg_conv = NodeAnnouncementInfo_clone(&announcement_info_arg_conv);
        LDKNodeInfo ret_var = NodeInfo_new(channels_arg_constr, lowest_inbound_channel_fees_arg_conv, announcement_info_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t NodeInfo_clone_ptr(LDKNodeInfo *NONNULL_PTR arg) {
+static inline uint64_t NodeInfo_clone_ptr(LDKNodeInfo *NONNULL_PTR arg) {
        LDKNodeInfo ret_var = NodeInfo_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeInfo_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKNodeInfo arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = NodeInfo_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeInfo_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKNodeInfo orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKNodeInfo ret_var = NodeInfo_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_NodeInfo_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKNodeInfo obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = NodeInfo_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -44562,14 +42762,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NodeInfo_1read(JNIEnv *env,
        LDKCResult_NodeInfoDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NodeInfoDecodeErrorZ), "LDKCResult_NodeInfoDecodeErrorZ");
        *ret_conv = NodeInfo_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKNetworkGraph obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = NetworkGraph_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -44581,7 +42782,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1read(JNIEnv *
        LDKu8slice ser_ref;
        ser_ref.datalen = (*env)->GetArrayLength(env, ser);
        ser_ref.data = (*env)->GetByteArrayElements (env, ser, NULL);
-       void* arg_ptr = (void*)(((uintptr_t)arg) & ~1);
+       void* arg_ptr = untag_ptr(arg);
        CHECK_ACCESS(arg_ptr);
        LDKLogger arg_conv = *(LDKLogger*)(arg_ptr);
        if (arg_conv.free == LDKLogger_JCalls_free) {
@@ -44591,14 +42792,14 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1read(JNIEnv *
        LDKCResult_NetworkGraphDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NetworkGraphDecodeErrorZ), "LDKCResult_NetworkGraphDecodeErrorZ");
        *ret_conv = NetworkGraph_read(ser_ref, arg_conv);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1new(JNIEnv *env, jclass clz, int8_tArray genesis_hash, int64_t logger) {
        LDKThirtyTwoBytes genesis_hash_ref;
        CHECK((*env)->GetArrayLength(env, genesis_hash) == 32);
        (*env)->GetByteArrayRegion(env, genesis_hash, 0, 32, genesis_hash_ref.data);
-       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
+       void* logger_ptr = untag_ptr(logger);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
        if (logger_conv.free == LDKLogger_JCalls_free) {
@@ -44607,90 +42808,89 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1new(JNIEnv *e
        }
        LDKNetworkGraph ret_var = NetworkGraph_new(genesis_hash_ref, logger_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1read_1only(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNetworkGraph this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKReadOnlyNetworkGraph ret_var = NetworkGraph_read_only(&this_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1get_1last_1rapid_1gossip_1sync_1timestamp(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNetworkGraph this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCOption_u32Z *ret_copy = MALLOC(sizeof(LDKCOption_u32Z), "LDKCOption_u32Z");
        *ret_copy = NetworkGraph_get_last_rapid_gossip_sync_timestamp(&this_arg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1set_1last_1rapid_1gossip_1sync_1timestamp(JNIEnv *env, jclass clz, int64_t this_arg, int32_t last_rapid_gossip_sync_timestamp) {
        LDKNetworkGraph this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NetworkGraph_set_last_rapid_gossip_sync_timestamp(&this_arg_conv, last_rapid_gossip_sync_timestamp);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1update_1node_1from_1announcement(JNIEnv *env, jclass clz, int64_t this_arg, int64_t msg) {
        LDKNetworkGraph this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKNodeAnnouncement msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = NetworkGraph_update_node_from_announcement(&this_arg_conv, &msg_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1update_1node_1from_1unsigned_1announcement(JNIEnv *env, jclass clz, int64_t this_arg, int64_t msg) {
        LDKNetworkGraph this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKUnsignedNodeAnnouncement msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = NetworkGraph_update_node_from_unsigned_announcement(&this_arg_conv, &msg_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1update_1channel_1from_1announcement(JNIEnv *env, jclass clz, int64_t this_arg, int64_t msg, int64_t chain_access) {
        LDKNetworkGraph this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKChannelAnnouncement msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
-       void* chain_access_ptr = (void*)(((uintptr_t)chain_access) & ~1);
+       msg_conv.is_owned = false;
+       void* chain_access_ptr = untag_ptr(chain_access);
        CHECK_ACCESS(chain_access_ptr);
        LDKCOption_AccessZ chain_access_conv = *(LDKCOption_AccessZ*)(chain_access_ptr);
        // WARNING: we may need a move here but no clone is available for LDKCOption_AccessZ
@@ -44703,19 +42903,21 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1update_1chann
        }
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = NetworkGraph_update_channel_from_announcement(&this_arg_conv, &msg_conv, chain_access_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1update_1channel_1from_1unsigned_1announcement(JNIEnv *env, jclass clz, int64_t this_arg, int64_t msg, int64_t chain_access) {
        LDKNetworkGraph this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKUnsignedChannelAnnouncement msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
-       void* chain_access_ptr = (void*)(((uintptr_t)chain_access) & ~1);
+       msg_conv.is_owned = false;
+       void* chain_access_ptr = untag_ptr(chain_access);
        CHECK_ACCESS(chain_access_ptr);
        LDKCOption_AccessZ chain_access_conv = *(LDKCOption_AccessZ*)(chain_access_ptr);
        // WARNING: we may need a move here but no clone is available for LDKCOption_AccessZ
@@ -44728,17 +42930,18 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1update_1chann
        }
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = NetworkGraph_update_channel_from_unsigned_announcement(&this_arg_conv, &msg_conv, chain_access_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1add_1channel_1from_1partial_1announcement(JNIEnv *env, jclass clz, int64_t this_arg, int64_t short_channel_id, int64_t timestamp, int64_t features, int8_tArray node_id_1, int8_tArray node_id_2) {
        LDKNetworkGraph this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKChannelFeatures features_conv;
-       features_conv.inner = (void*)(features & (~1));
-       features_conv.is_owned = (features & 1) || (features == 0);
+       features_conv.inner = untag_ptr(features);
+       features_conv.is_owned = ptr_is_owned(features);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(features_conv);
        features_conv = ChannelFeatures_clone(&features_conv);
        LDKPublicKey node_id_1_ref;
@@ -44749,22 +42952,24 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1add_1channel_
        (*env)->GetByteArrayRegion(env, node_id_2, 0, 33, node_id_2_ref.compressed_form);
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = NetworkGraph_add_channel_from_partial_announcement(&this_arg_conv, short_channel_id, timestamp, features_conv, node_id_1_ref, node_id_2_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1channel_1failed(JNIEnv *env, jclass clz, int64_t this_arg, int64_t short_channel_id, jboolean is_permanent) {
        LDKNetworkGraph this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NetworkGraph_channel_failed(&this_arg_conv, short_channel_id, is_permanent);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1node_1failed(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray _node_id, jboolean is_permanent) {
        LDKNetworkGraph this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKPublicKey _node_id_ref;
        CHECK((*env)->GetArrayLength(env, _node_id) == 33);
        (*env)->GetByteArrayRegion(env, _node_id, 0, 33, _node_id_ref.compressed_form);
@@ -44773,72 +42978,73 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1node_1failed(JNI
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1remove_1stale_1channels(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKNetworkGraph this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NetworkGraph_remove_stale_channels(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1remove_1stale_1channels_1with_1time(JNIEnv *env, jclass clz, int64_t this_arg, int64_t current_time_unix) {
        LDKNetworkGraph this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        NetworkGraph_remove_stale_channels_with_time(&this_arg_conv, current_time_unix);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1update_1channel(JNIEnv *env, jclass clz, int64_t this_arg, int64_t msg) {
        LDKNetworkGraph this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKChannelUpdate msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = NetworkGraph_update_channel(&this_arg_conv, &msg_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1update_1channel_1unsigned(JNIEnv *env, jclass clz, int64_t this_arg, int64_t msg) {
        LDKNetworkGraph this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKUnsignedChannelUpdate msg_conv;
-       msg_conv.inner = (void*)(msg & (~1));
-       msg_conv.is_owned = false;
+       msg_conv.inner = untag_ptr(msg);
+       msg_conv.is_owned = ptr_is_owned(msg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(msg_conv);
+       msg_conv.is_owned = false;
        LDKCResult_NoneLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneLightningErrorZ), "LDKCResult_NoneLightningErrorZ");
        *ret_conv = NetworkGraph_update_channel_unsigned(&this_arg_conv, &msg_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ReadOnlyNetworkGraph_1channel(JNIEnv *env, jclass clz, int64_t this_arg, int64_t short_channel_id) {
        LDKReadOnlyNetworkGraph this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKChannelInfo ret_var = ReadOnlyNetworkGraph_channel(&this_arg_conv, short_channel_id);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ReadOnlyNetworkGraph_1list_1channels(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKReadOnlyNetworkGraph this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCVec_u64Z ret_var = ReadOnlyNetworkGraph_list_channels(&this_arg_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -44854,32 +43060,28 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ReadOnlyNetworkGraph_1
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ReadOnlyNetworkGraph_1node(JNIEnv *env, jclass clz, int64_t this_arg, int64_t node_id) {
        LDKReadOnlyNetworkGraph this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKNodeId node_id_conv;
-       node_id_conv.inner = (void*)(node_id & (~1));
-       node_id_conv.is_owned = false;
+       node_id_conv.inner = untag_ptr(node_id);
+       node_id_conv.is_owned = ptr_is_owned(node_id);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(node_id_conv);
+       node_id_conv.is_owned = false;
        LDKNodeInfo ret_var = ReadOnlyNetworkGraph_node(&this_arg_conv, &node_id_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ReadOnlyNetworkGraph_1list_1nodes(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKReadOnlyNetworkGraph this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCVec_NodeIdZ ret_var = ReadOnlyNetworkGraph_list_nodes(&this_arg_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -44887,13 +43089,8 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ReadOnlyNetworkGraph_1
        for (size_t i = 0; i < ret_var.datalen; i++) {
                LDKNodeId ret_conv_8_var = ret_var.data[i];
                int64_t ret_conv_8_ref = 0;
-               CHECK((((uintptr_t)ret_conv_8_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_conv_8_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_8_var);
-               ret_conv_8_ref = (uintptr_t)ret_conv_8_var.inner;
-               if (ret_conv_8_var.is_owned) {
-                       ret_conv_8_ref |= 1;
-               }
+               ret_conv_8_ref = tag_ptr(ret_conv_8_var.inner, ret_conv_8_var.is_owned);
                ret_arr_ptr[i] = ret_conv_8_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
@@ -44903,31 +43100,33 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ReadOnlyNetworkGraph_1
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ReadOnlyNetworkGraph_1get_1addresses(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray pubkey) {
        LDKReadOnlyNetworkGraph this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKPublicKey pubkey_ref;
        CHECK((*env)->GetArrayLength(env, pubkey) == 33);
        (*env)->GetByteArrayRegion(env, pubkey, 0, 33, pubkey_ref.compressed_form);
        LDKCOption_CVec_NetAddressZZ *ret_copy = MALLOC(sizeof(LDKCOption_CVec_NetAddressZZ), "LDKCOption_CVec_NetAddressZZ");
        *ret_copy = ReadOnlyNetworkGraph_get_addresses(&this_arg_conv, pubkey_ref);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteHop_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKRouteHop this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        RouteHop_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_RouteHop_1get_1pubkey(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRouteHop this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, RouteHop_get_pubkey(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -44935,9 +43134,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_RouteHop_1get_1pubkey(J
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteHop_1set_1pubkey(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKRouteHop this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -44946,29 +43146,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteHop_1set_1pubkey(JNIEnv *
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHop_1get_1node_1features(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRouteHop this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKNodeFeatures ret_var = RouteHop_get_node_features(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteHop_1set_1node_1features(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKRouteHop this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKNodeFeatures val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = NodeFeatures_clone(&val_conv);
        RouteHop_set_node_features(&this_ptr_conv, val_conv);
@@ -44976,46 +43173,45 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteHop_1set_1node_1features(
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHop_1get_1short_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRouteHop this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = RouteHop_get_short_channel_id(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteHop_1set_1short_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKRouteHop this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        RouteHop_set_short_channel_id(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHop_1get_1channel_1features(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRouteHop this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelFeatures ret_var = RouteHop_get_channel_features(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteHop_1set_1channel_1features(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKRouteHop this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKChannelFeatures val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = ChannelFeatures_clone(&val_conv);
        RouteHop_set_channel_features(&this_ptr_conv, val_conv);
@@ -45023,35 +43219,39 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteHop_1set_1channel_1featur
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHop_1get_1fee_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRouteHop this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = RouteHop_get_fee_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteHop_1set_1fee_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKRouteHop this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        RouteHop_set_fee_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_RouteHop_1get_1cltv_1expiry_1delta(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRouteHop this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = RouteHop_get_cltv_expiry_delta(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteHop_1set_1cltv_1expiry_1delta(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKRouteHop this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        RouteHop_set_cltv_expiry_delta(&this_ptr_conv, val);
 }
 
@@ -45060,92 +43260,83 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHop_1new(JNIEnv *env,
        CHECK((*env)->GetArrayLength(env, pubkey_arg) == 33);
        (*env)->GetByteArrayRegion(env, pubkey_arg, 0, 33, pubkey_arg_ref.compressed_form);
        LDKNodeFeatures node_features_arg_conv;
-       node_features_arg_conv.inner = (void*)(node_features_arg & (~1));
-       node_features_arg_conv.is_owned = (node_features_arg & 1) || (node_features_arg == 0);
+       node_features_arg_conv.inner = untag_ptr(node_features_arg);
+       node_features_arg_conv.is_owned = ptr_is_owned(node_features_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(node_features_arg_conv);
        node_features_arg_conv = NodeFeatures_clone(&node_features_arg_conv);
        LDKChannelFeatures channel_features_arg_conv;
-       channel_features_arg_conv.inner = (void*)(channel_features_arg & (~1));
-       channel_features_arg_conv.is_owned = (channel_features_arg & 1) || (channel_features_arg == 0);
+       channel_features_arg_conv.inner = untag_ptr(channel_features_arg);
+       channel_features_arg_conv.is_owned = ptr_is_owned(channel_features_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_features_arg_conv);
        channel_features_arg_conv = ChannelFeatures_clone(&channel_features_arg_conv);
        LDKRouteHop ret_var = RouteHop_new(pubkey_arg_ref, node_features_arg_conv, short_channel_id_arg, channel_features_arg_conv, fee_msat_arg, cltv_expiry_delta_arg);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t RouteHop_clone_ptr(LDKRouteHop *NONNULL_PTR arg) {
+static inline uint64_t RouteHop_clone_ptr(LDKRouteHop *NONNULL_PTR arg) {
        LDKRouteHop ret_var = RouteHop_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHop_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKRouteHop arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = RouteHop_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHop_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKRouteHop orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKRouteHop ret_var = RouteHop_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHop_1hash(JNIEnv *env, jclass clz, int64_t o) {
        LDKRouteHop o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = false;
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
+       o_conv.is_owned = false;
        int64_t ret_conv = RouteHop_hash(&o_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_RouteHop_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKRouteHop a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKRouteHop b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = RouteHop_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_RouteHop_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKRouteHop obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = RouteHop_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -45160,22 +43351,23 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHop_1read(JNIEnv *env,
        LDKCResult_RouteHopDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHopDecodeErrorZ), "LDKCResult_RouteHopDecodeErrorZ");
        *ret_conv = RouteHop_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Route_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKRoute this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        Route_free(this_obj_conv);
 }
 
 JNIEXPORT jobjectArray JNICALL Java_org_ldk_impl_bindings_Route_1get_1paths(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRoute this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_CVec_RouteHopZZ ret_var = Route_get_paths(&this_ptr_conv);
        jobjectArray ret_arr = NULL;
        ret_arr = (*env)->NewObjectArray(env, ret_var.datalen, arr_of_J_clz, NULL);
@@ -45188,13 +43380,8 @@ JNIEXPORT jobjectArray JNICALL Java_org_ldk_impl_bindings_Route_1get_1paths(JNIE
                for (size_t k = 0; k < ret_conv_12_var.datalen; k++) {
                        LDKRouteHop ret_conv_12_conv_10_var = ret_conv_12_var.data[k];
                        int64_t ret_conv_12_conv_10_ref = 0;
-                       CHECK((((uintptr_t)ret_conv_12_conv_10_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-                       CHECK((((uintptr_t)&ret_conv_12_conv_10_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_12_conv_10_var);
-                       ret_conv_12_conv_10_ref = (uintptr_t)ret_conv_12_conv_10_var.inner;
-                       if (ret_conv_12_conv_10_var.is_owned) {
-                               ret_conv_12_conv_10_ref |= 1;
-                       }
+                       ret_conv_12_conv_10_ref = tag_ptr(ret_conv_12_conv_10_var.inner, ret_conv_12_conv_10_var.is_owned);
                        ret_conv_12_arr_ptr[k] = ret_conv_12_conv_10_ref;
                }
                (*env)->ReleasePrimitiveArrayCritical(env, ret_conv_12_arr, ret_conv_12_arr_ptr, 0);
@@ -45208,9 +43395,10 @@ JNIEXPORT jobjectArray JNICALL Java_org_ldk_impl_bindings_Route_1get_1paths(JNIE
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Route_1set_1paths(JNIEnv *env, jclass clz, int64_t this_ptr, jobjectArray val) {
        LDKRoute this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_CVec_RouteHopZZ val_constr;
        val_constr.datalen = (*env)->GetArrayLength(env, val);
        if (val_constr.datalen > 0)
@@ -45229,8 +43417,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Route_1set_1paths(JNIEnv *env,
                for (size_t k = 0; k < val_conv_12_constr.datalen; k++) {
                        int64_t val_conv_12_conv_10 = val_conv_12_vals[k];
                        LDKRouteHop val_conv_12_conv_10_conv;
-                       val_conv_12_conv_10_conv.inner = (void*)(val_conv_12_conv_10 & (~1));
-                       val_conv_12_conv_10_conv.is_owned = (val_conv_12_conv_10 & 1) || (val_conv_12_conv_10 == 0);
+                       val_conv_12_conv_10_conv.inner = untag_ptr(val_conv_12_conv_10);
+                       val_conv_12_conv_10_conv.is_owned = ptr_is_owned(val_conv_12_conv_10);
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv_12_conv_10_conv);
                        val_conv_12_conv_10_conv = RouteHop_clone(&val_conv_12_conv_10_conv);
                        val_conv_12_constr.data[k] = val_conv_12_conv_10_conv;
@@ -45243,31 +43431,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Route_1set_1paths(JNIEnv *env,
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Route_1get_1payment_1params(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRoute this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPaymentParameters ret_var = Route_get_payment_params(&this_ptr_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Route_1set_1payment_1params(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKRoute this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPaymentParameters val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = PaymentParameters_clone(&val_conv);
        Route_set_payment_params(&this_ptr_conv, val_conv);
@@ -45292,8 +43475,8 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Route_1new(JNIEnv *env, jcl
                for (size_t k = 0; k < paths_arg_conv_12_constr.datalen; k++) {
                        int64_t paths_arg_conv_12_conv_10 = paths_arg_conv_12_vals[k];
                        LDKRouteHop paths_arg_conv_12_conv_10_conv;
-                       paths_arg_conv_12_conv_10_conv.inner = (void*)(paths_arg_conv_12_conv_10 & (~1));
-                       paths_arg_conv_12_conv_10_conv.is_owned = (paths_arg_conv_12_conv_10 & 1) || (paths_arg_conv_12_conv_10 == 0);
+                       paths_arg_conv_12_conv_10_conv.inner = untag_ptr(paths_arg_conv_12_conv_10);
+                       paths_arg_conv_12_conv_10_conv.is_owned = ptr_is_owned(paths_arg_conv_12_conv_10);
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(paths_arg_conv_12_conv_10_conv);
                        paths_arg_conv_12_conv_10_conv = RouteHop_clone(&paths_arg_conv_12_conv_10_conv);
                        paths_arg_conv_12_constr.data[k] = paths_arg_conv_12_conv_10_conv;
@@ -45302,105 +43485,98 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Route_1new(JNIEnv *env, jcl
                paths_arg_constr.data[m] = paths_arg_conv_12_constr;
        }
        LDKPaymentParameters payment_params_arg_conv;
-       payment_params_arg_conv.inner = (void*)(payment_params_arg & (~1));
-       payment_params_arg_conv.is_owned = (payment_params_arg & 1) || (payment_params_arg == 0);
+       payment_params_arg_conv.inner = untag_ptr(payment_params_arg);
+       payment_params_arg_conv.is_owned = ptr_is_owned(payment_params_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(payment_params_arg_conv);
        payment_params_arg_conv = PaymentParameters_clone(&payment_params_arg_conv);
        LDKRoute ret_var = Route_new(paths_arg_constr, payment_params_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t Route_clone_ptr(LDKRoute *NONNULL_PTR arg) {
+static inline uint64_t Route_clone_ptr(LDKRoute *NONNULL_PTR arg) {
        LDKRoute ret_var = Route_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Route_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKRoute arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = Route_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Route_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKRoute orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKRoute ret_var = Route_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Route_1hash(JNIEnv *env, jclass clz, int64_t o) {
        LDKRoute o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = false;
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
+       o_conv.is_owned = false;
        int64_t ret_conv = Route_hash(&o_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_Route_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKRoute a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKRoute b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = Route_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Route_1get_1total_1fees(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKRoute this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int64_t ret_conv = Route_get_total_fees(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Route_1get_1total_1amount(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKRoute this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int64_t ret_conv = Route_get_total_amount(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Route_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKRoute obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = Route_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -45415,42 +43591,39 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Route_1read(JNIEnv *env, jc
        LDKCResult_RouteDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteDecodeErrorZ), "LDKCResult_RouteDecodeErrorZ");
        *ret_conv = Route_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteParameters_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKRouteParameters this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        RouteParameters_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteParameters_1get_1payment_1params(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRouteParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPaymentParameters ret_var = RouteParameters_get_payment_params(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteParameters_1set_1payment_1params(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKRouteParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPaymentParameters val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = PaymentParameters_clone(&val_conv);
        RouteParameters_set_payment_params(&this_ptr_conv, val_conv);
@@ -45458,99 +43631,91 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteParameters_1set_1payment_
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteParameters_1get_1final_1value_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRouteParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = RouteParameters_get_final_value_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteParameters_1set_1final_1value_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKRouteParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        RouteParameters_set_final_value_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_RouteParameters_1get_1final_1cltv_1expiry_1delta(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRouteParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = RouteParameters_get_final_cltv_expiry_delta(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteParameters_1set_1final_1cltv_1expiry_1delta(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKRouteParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        RouteParameters_set_final_cltv_expiry_delta(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteParameters_1new(JNIEnv *env, jclass clz, int64_t payment_params_arg, int64_t final_value_msat_arg, int32_t final_cltv_expiry_delta_arg) {
        LDKPaymentParameters payment_params_arg_conv;
-       payment_params_arg_conv.inner = (void*)(payment_params_arg & (~1));
-       payment_params_arg_conv.is_owned = (payment_params_arg & 1) || (payment_params_arg == 0);
+       payment_params_arg_conv.inner = untag_ptr(payment_params_arg);
+       payment_params_arg_conv.is_owned = ptr_is_owned(payment_params_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(payment_params_arg_conv);
        payment_params_arg_conv = PaymentParameters_clone(&payment_params_arg_conv);
        LDKRouteParameters ret_var = RouteParameters_new(payment_params_arg_conv, final_value_msat_arg, final_cltv_expiry_delta_arg);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t RouteParameters_clone_ptr(LDKRouteParameters *NONNULL_PTR arg) {
+static inline uint64_t RouteParameters_clone_ptr(LDKRouteParameters *NONNULL_PTR arg) {
        LDKRouteParameters ret_var = RouteParameters_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteParameters_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKRouteParameters arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = RouteParameters_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteParameters_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKRouteParameters orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKRouteParameters ret_var = RouteParameters_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_RouteParameters_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKRouteParameters obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = RouteParameters_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -45565,22 +43730,23 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteParameters_1read(JNIEn
        LDKCResult_RouteParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteParametersDecodeErrorZ), "LDKCResult_RouteParametersDecodeErrorZ");
        *ret_conv = RouteParameters_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKPaymentParameters this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        PaymentParameters_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1get_1payee_1pubkey(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKPaymentParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, PaymentParameters_get_payee_pubkey(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -45588,9 +43754,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1get_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1set_1payee_1pubkey(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKPaymentParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -45599,31 +43766,26 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1set_1payee_
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1get_1features(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKPaymentParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKInvoiceFeatures ret_var = PaymentParameters_get_features(&this_ptr_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1set_1features(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKPaymentParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKInvoiceFeatures val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = InvoiceFeatures_clone(&val_conv);
        PaymentParameters_set_features(&this_ptr_conv, val_conv);
@@ -45631,9 +43793,10 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1set_1featur
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1get_1route_1hints(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKPaymentParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_RouteHintZ ret_var = PaymentParameters_get_route_hints(&this_ptr_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -45641,13 +43804,8 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1get
        for (size_t l = 0; l < ret_var.datalen; l++) {
                LDKRouteHint ret_conv_11_var = ret_var.data[l];
                int64_t ret_conv_11_ref = 0;
-               CHECK((((uintptr_t)ret_conv_11_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_conv_11_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_11_var);
-               ret_conv_11_ref = (uintptr_t)ret_conv_11_var.inner;
-               if (ret_conv_11_var.is_owned) {
-                       ret_conv_11_ref |= 1;
-               }
+               ret_conv_11_ref = tag_ptr(ret_conv_11_var.inner, ret_conv_11_var.is_owned);
                ret_arr_ptr[l] = ret_conv_11_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
@@ -45657,9 +43815,10 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1get
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1set_1route_1hints(JNIEnv *env, jclass clz, int64_t this_ptr, int64_tArray val) {
        LDKPaymentParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_RouteHintZ val_constr;
        val_constr.datalen = (*env)->GetArrayLength(env, val);
        if (val_constr.datalen > 0)
@@ -45670,8 +43829,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1set_1route_
        for (size_t l = 0; l < val_constr.datalen; l++) {
                int64_t val_conv_11 = val_vals[l];
                LDKRouteHint val_conv_11_conv;
-               val_conv_11_conv.inner = (void*)(val_conv_11 & (~1));
-               val_conv_11_conv.is_owned = (val_conv_11 & 1) || (val_conv_11 == 0);
+               val_conv_11_conv.inner = untag_ptr(val_conv_11);
+               val_conv_11_conv.is_owned = ptr_is_owned(val_conv_11);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv_11_conv);
                val_conv_11_conv = RouteHint_clone(&val_conv_11_conv);
                val_constr.data[l] = val_conv_11_conv;
@@ -45682,83 +43841,92 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1set_1route_
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1get_1expiry_1time(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKPaymentParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = PaymentParameters_get_expiry_time(&this_ptr_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1set_1expiry_1time(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKPaymentParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
-       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)val) & ~1));
+       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(val));
        PaymentParameters_set_expiry_time(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1get_1max_1total_1cltv_1expiry_1delta(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKPaymentParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int32_t ret_conv = PaymentParameters_get_max_total_cltv_expiry_delta(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1set_1max_1total_1cltv_1expiry_1delta(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKPaymentParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        PaymentParameters_set_max_total_cltv_expiry_delta(&this_ptr_conv, val);
 }
 
 JNIEXPORT int8_t JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1get_1max_1path_1count(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKPaymentParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_t ret_conv = PaymentParameters_get_max_path_count(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1set_1max_1path_1count(JNIEnv *env, jclass clz, int64_t this_ptr, int8_t val) {
        LDKPaymentParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        PaymentParameters_set_max_path_count(&this_ptr_conv, val);
 }
 
 JNIEXPORT int8_t JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1get_1max_1channel_1saturation_1power_1of_1half(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKPaymentParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_t ret_conv = PaymentParameters_get_max_channel_saturation_power_of_half(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1set_1max_1channel_1saturation_1power_1of_1half(JNIEnv *env, jclass clz, int64_t this_ptr, int8_t val) {
        LDKPaymentParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        PaymentParameters_set_max_channel_saturation_power_of_half(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1get_1previously_1failed_1channels(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKPaymentParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_u64Z ret_var = PaymentParameters_get_previously_failed_channels(&this_ptr_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -45774,9 +43942,10 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1get
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1set_1previously_1failed_1channels(JNIEnv *env, jclass clz, int64_t this_ptr, int64_tArray val) {
        LDKPaymentParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_u64Z val_constr;
        val_constr.datalen = (*env)->GetArrayLength(env, val);
        if (val_constr.datalen > 0)
@@ -45797,8 +43966,8 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1new(JNIE
        CHECK((*env)->GetArrayLength(env, payee_pubkey_arg) == 33);
        (*env)->GetByteArrayRegion(env, payee_pubkey_arg, 0, 33, payee_pubkey_arg_ref.compressed_form);
        LDKInvoiceFeatures features_arg_conv;
-       features_arg_conv.inner = (void*)(features_arg & (~1));
-       features_arg_conv.is_owned = (features_arg & 1) || (features_arg == 0);
+       features_arg_conv.inner = untag_ptr(features_arg);
+       features_arg_conv.is_owned = ptr_is_owned(features_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(features_arg_conv);
        features_arg_conv = InvoiceFeatures_clone(&features_arg_conv);
        LDKCVec_RouteHintZ route_hints_arg_constr;
@@ -45811,17 +43980,17 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1new(JNIE
        for (size_t l = 0; l < route_hints_arg_constr.datalen; l++) {
                int64_t route_hints_arg_conv_11 = route_hints_arg_vals[l];
                LDKRouteHint route_hints_arg_conv_11_conv;
-               route_hints_arg_conv_11_conv.inner = (void*)(route_hints_arg_conv_11 & (~1));
-               route_hints_arg_conv_11_conv.is_owned = (route_hints_arg_conv_11 & 1) || (route_hints_arg_conv_11 == 0);
+               route_hints_arg_conv_11_conv.inner = untag_ptr(route_hints_arg_conv_11);
+               route_hints_arg_conv_11_conv.is_owned = ptr_is_owned(route_hints_arg_conv_11);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(route_hints_arg_conv_11_conv);
                route_hints_arg_conv_11_conv = RouteHint_clone(&route_hints_arg_conv_11_conv);
                route_hints_arg_constr.data[l] = route_hints_arg_conv_11_conv;
        }
        (*env)->ReleaseLongArrayElements(env, route_hints_arg, route_hints_arg_vals, 0);
-       void* expiry_time_arg_ptr = (void*)(((uintptr_t)expiry_time_arg) & ~1);
+       void* expiry_time_arg_ptr = untag_ptr(expiry_time_arg);
        CHECK_ACCESS(expiry_time_arg_ptr);
        LDKCOption_u64Z expiry_time_arg_conv = *(LDKCOption_u64Z*)(expiry_time_arg_ptr);
-       expiry_time_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)expiry_time_arg) & ~1));
+       expiry_time_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(expiry_time_arg));
        LDKCVec_u64Z previously_failed_channels_arg_constr;
        previously_failed_channels_arg_constr.datalen = (*env)->GetArrayLength(env, previously_failed_channels_arg);
        if (previously_failed_channels_arg_constr.datalen > 0)
@@ -45836,81 +44005,72 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1new(JNIE
        (*env)->ReleaseLongArrayElements(env, previously_failed_channels_arg, previously_failed_channels_arg_vals, 0);
        LDKPaymentParameters ret_var = PaymentParameters_new(payee_pubkey_arg_ref, features_arg_conv, route_hints_arg_constr, expiry_time_arg_conv, max_total_cltv_expiry_delta_arg, max_path_count_arg, max_channel_saturation_power_of_half_arg, previously_failed_channels_arg_constr);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t PaymentParameters_clone_ptr(LDKPaymentParameters *NONNULL_PTR arg) {
+static inline uint64_t PaymentParameters_clone_ptr(LDKPaymentParameters *NONNULL_PTR arg) {
        LDKPaymentParameters ret_var = PaymentParameters_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKPaymentParameters arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = PaymentParameters_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKPaymentParameters orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKPaymentParameters ret_var = PaymentParameters_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1hash(JNIEnv *env, jclass clz, int64_t o) {
        LDKPaymentParameters o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = false;
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
+       o_conv.is_owned = false;
        int64_t ret_conv = PaymentParameters_hash(&o_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKPaymentParameters a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKPaymentParameters b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = PaymentParameters_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKPaymentParameters obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = PaymentParameters_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -45925,7 +44085,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1read(JNI
        LDKCResult_PaymentParametersDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentParametersDecodeErrorZ), "LDKCResult_PaymentParametersDecodeErrorZ");
        *ret_conv = PaymentParameters_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1from_1node_1id(JNIEnv *env, jclass clz, int8_tArray payee_pubkey) {
@@ -45934,13 +44094,8 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1from_1no
        (*env)->GetByteArrayRegion(env, payee_pubkey, 0, 33, payee_pubkey_ref.compressed_form);
        LDKPaymentParameters ret_var = PaymentParameters_from_node_id(payee_pubkey_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
@@ -45950,29 +44105,25 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentParameters_1for_1key
        (*env)->GetByteArrayRegion(env, payee_pubkey, 0, 33, payee_pubkey_ref.compressed_form);
        LDKPaymentParameters ret_var = PaymentParameters_for_keysend(payee_pubkey_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteHint_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKRouteHint this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        RouteHint_free(this_obj_conv);
 }
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_RouteHint_1get_1a(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRouteHint this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_RouteHintHopZ ret_var = RouteHint_get_a(&this_ptr_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -45980,13 +44131,8 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_RouteHint_1get_1a(JNIE
        for (size_t o = 0; o < ret_var.datalen; o++) {
                LDKRouteHintHop ret_conv_14_var = ret_var.data[o];
                int64_t ret_conv_14_ref = 0;
-               CHECK((((uintptr_t)ret_conv_14_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_conv_14_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_14_var);
-               ret_conv_14_ref = (uintptr_t)ret_conv_14_var.inner;
-               if (ret_conv_14_var.is_owned) {
-                       ret_conv_14_ref |= 1;
-               }
+               ret_conv_14_ref = tag_ptr(ret_conv_14_var.inner, ret_conv_14_var.is_owned);
                ret_arr_ptr[o] = ret_conv_14_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
@@ -45996,9 +44142,10 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_RouteHint_1get_1a(JNIE
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteHint_1set_1a(JNIEnv *env, jclass clz, int64_t this_ptr, int64_tArray val) {
        LDKRouteHint this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCVec_RouteHintHopZ val_constr;
        val_constr.datalen = (*env)->GetArrayLength(env, val);
        if (val_constr.datalen > 0)
@@ -46009,8 +44156,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteHint_1set_1a(JNIEnv *env,
        for (size_t o = 0; o < val_constr.datalen; o++) {
                int64_t val_conv_14 = val_vals[o];
                LDKRouteHintHop val_conv_14_conv;
-               val_conv_14_conv.inner = (void*)(val_conv_14 & (~1));
-               val_conv_14_conv.is_owned = (val_conv_14 & 1) || (val_conv_14 == 0);
+               val_conv_14_conv.inner = untag_ptr(val_conv_14);
+               val_conv_14_conv.is_owned = ptr_is_owned(val_conv_14);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv_14_conv);
                val_conv_14_conv = RouteHintHop_clone(&val_conv_14_conv);
                val_constr.data[o] = val_conv_14_conv;
@@ -46030,8 +44177,8 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHint_1new(JNIEnv *env,
        for (size_t o = 0; o < a_arg_constr.datalen; o++) {
                int64_t a_arg_conv_14 = a_arg_vals[o];
                LDKRouteHintHop a_arg_conv_14_conv;
-               a_arg_conv_14_conv.inner = (void*)(a_arg_conv_14 & (~1));
-               a_arg_conv_14_conv.is_owned = (a_arg_conv_14 & 1) || (a_arg_conv_14 == 0);
+               a_arg_conv_14_conv.inner = untag_ptr(a_arg_conv_14);
+               a_arg_conv_14_conv.is_owned = ptr_is_owned(a_arg_conv_14);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(a_arg_conv_14_conv);
                a_arg_conv_14_conv = RouteHintHop_clone(&a_arg_conv_14_conv);
                a_arg_constr.data[o] = a_arg_conv_14_conv;
@@ -46039,81 +44186,72 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHint_1new(JNIEnv *env,
        (*env)->ReleaseLongArrayElements(env, a_arg, a_arg_vals, 0);
        LDKRouteHint ret_var = RouteHint_new(a_arg_constr);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t RouteHint_clone_ptr(LDKRouteHint *NONNULL_PTR arg) {
+static inline uint64_t RouteHint_clone_ptr(LDKRouteHint *NONNULL_PTR arg) {
        LDKRouteHint ret_var = RouteHint_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHint_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKRouteHint arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = RouteHint_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHint_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKRouteHint orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKRouteHint ret_var = RouteHint_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHint_1hash(JNIEnv *env, jclass clz, int64_t o) {
        LDKRouteHint o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = false;
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
+       o_conv.is_owned = false;
        int64_t ret_conv = RouteHint_hash(&o_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_RouteHint_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKRouteHint a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKRouteHint b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = RouteHint_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_RouteHint_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKRouteHint obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = RouteHint_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -46128,22 +44266,23 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHint_1read(JNIEnv *env
        LDKCResult_RouteHintDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHintDecodeErrorZ), "LDKCResult_RouteHintDecodeErrorZ");
        *ret_conv = RouteHint_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKRouteHintHop this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        RouteHintHop_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1get_1src_1node_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRouteHintHop this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, RouteHintHop_get_src_node_id(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -46151,9 +44290,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1get_1src_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1set_1src_1node_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKRouteHintHop this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -46162,46 +44302,45 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1set_1src_1node_1
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1get_1short_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRouteHintHop this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = RouteHintHop_get_short_channel_id(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1set_1short_1channel_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKRouteHintHop this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        RouteHintHop_set_short_channel_id(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1get_1fees(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRouteHintHop this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKRoutingFees ret_var = RouteHintHop_get_fees(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1set_1fees(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKRouteHintHop this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKRoutingFees val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = RoutingFees_clone(&val_conv);
        RouteHintHop_set_fees(&this_ptr_conv, val_conv);
@@ -46209,64 +44348,70 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1set_1fees(JNIEnv
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1get_1cltv_1expiry_1delta(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRouteHintHop this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int16_t ret_conv = RouteHintHop_get_cltv_expiry_delta(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1set_1cltv_1expiry_1delta(JNIEnv *env, jclass clz, int64_t this_ptr, int16_t val) {
        LDKRouteHintHop this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        RouteHintHop_set_cltv_expiry_delta(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1get_1htlc_1minimum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRouteHintHop this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = RouteHintHop_get_htlc_minimum_msat(&this_ptr_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1set_1htlc_1minimum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKRouteHintHop this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
-       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)val) & ~1));
+       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(val));
        RouteHintHop_set_htlc_minimum_msat(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1get_1htlc_1maximum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRouteHintHop this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = RouteHintHop_get_htlc_maximum_msat(&this_ptr_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1set_1htlc_1maximum_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKRouteHintHop this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
-       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)val) & ~1));
+       val_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(val));
        RouteHintHop_set_htlc_maximum_msat(&this_ptr_conv, val_conv);
 }
 
@@ -46275,95 +44420,86 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1new(JNIEnv *e
        CHECK((*env)->GetArrayLength(env, src_node_id_arg) == 33);
        (*env)->GetByteArrayRegion(env, src_node_id_arg, 0, 33, src_node_id_arg_ref.compressed_form);
        LDKRoutingFees fees_arg_conv;
-       fees_arg_conv.inner = (void*)(fees_arg & (~1));
-       fees_arg_conv.is_owned = (fees_arg & 1) || (fees_arg == 0);
+       fees_arg_conv.inner = untag_ptr(fees_arg);
+       fees_arg_conv.is_owned = ptr_is_owned(fees_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(fees_arg_conv);
        fees_arg_conv = RoutingFees_clone(&fees_arg_conv);
-       void* htlc_minimum_msat_arg_ptr = (void*)(((uintptr_t)htlc_minimum_msat_arg) & ~1);
+       void* htlc_minimum_msat_arg_ptr = untag_ptr(htlc_minimum_msat_arg);
        CHECK_ACCESS(htlc_minimum_msat_arg_ptr);
        LDKCOption_u64Z htlc_minimum_msat_arg_conv = *(LDKCOption_u64Z*)(htlc_minimum_msat_arg_ptr);
-       htlc_minimum_msat_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)htlc_minimum_msat_arg) & ~1));
-       void* htlc_maximum_msat_arg_ptr = (void*)(((uintptr_t)htlc_maximum_msat_arg) & ~1);
+       htlc_minimum_msat_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(htlc_minimum_msat_arg));
+       void* htlc_maximum_msat_arg_ptr = untag_ptr(htlc_maximum_msat_arg);
        CHECK_ACCESS(htlc_maximum_msat_arg_ptr);
        LDKCOption_u64Z htlc_maximum_msat_arg_conv = *(LDKCOption_u64Z*)(htlc_maximum_msat_arg_ptr);
-       htlc_maximum_msat_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)htlc_maximum_msat_arg) & ~1));
+       htlc_maximum_msat_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(htlc_maximum_msat_arg));
        LDKRouteHintHop ret_var = RouteHintHop_new(src_node_id_arg_ref, short_channel_id_arg, fees_arg_conv, cltv_expiry_delta_arg, htlc_minimum_msat_arg_conv, htlc_maximum_msat_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t RouteHintHop_clone_ptr(LDKRouteHintHop *NONNULL_PTR arg) {
+static inline uint64_t RouteHintHop_clone_ptr(LDKRouteHintHop *NONNULL_PTR arg) {
        LDKRouteHintHop ret_var = RouteHintHop_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKRouteHintHop arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = RouteHintHop_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKRouteHintHop orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKRouteHintHop ret_var = RouteHintHop_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1hash(JNIEnv *env, jclass clz, int64_t o) {
        LDKRouteHintHop o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = false;
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
+       o_conv.is_owned = false;
        int64_t ret_conv = RouteHintHop_hash(&o_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKRouteHintHop a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKRouteHintHop b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = RouteHintHop_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKRouteHintHop obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = RouteHintHop_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -46378,7 +44514,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1read(JNIEnv *
        LDKCResult_RouteHintHopDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteHintHopDecodeErrorZ), "LDKCResult_RouteHintHopDecodeErrorZ");
        *ret_conv = RouteHintHop_read(ser_ref);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_find_1route(JNIEnv *env, jclass clz, int8_tArray our_node_pubkey, int64_t route_params, int64_t network_graph, int64_tArray first_hops, int64_t logger, int64_t scorer, int8_tArray random_seed_bytes) {
@@ -46386,13 +44522,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_find_1route(JNIEnv *env, jc
        CHECK((*env)->GetArrayLength(env, our_node_pubkey) == 33);
        (*env)->GetByteArrayRegion(env, our_node_pubkey, 0, 33, our_node_pubkey_ref.compressed_form);
        LDKRouteParameters route_params_conv;
-       route_params_conv.inner = (void*)(route_params & (~1));
-       route_params_conv.is_owned = false;
+       route_params_conv.inner = untag_ptr(route_params);
+       route_params_conv.is_owned = ptr_is_owned(route_params);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(route_params_conv);
+       route_params_conv.is_owned = false;
        LDKNetworkGraph network_graph_conv;
-       network_graph_conv.inner = (void*)(network_graph & (~1));
-       network_graph_conv.is_owned = false;
+       network_graph_conv.inner = untag_ptr(network_graph);
+       network_graph_conv.is_owned = ptr_is_owned(network_graph);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(network_graph_conv);
+       network_graph_conv.is_owned = false;
        LDKCVec_ChannelDetailsZ first_hops_constr;
        LDKCVec_ChannelDetailsZ *first_hops_ptr = NULL;
        if (first_hops != NULL) {
@@ -46405,23 +44543,24 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_find_1route(JNIEnv *env, jc
                for (size_t q = 0; q < first_hops_constr.datalen; q++) {
                        int64_t first_hops_conv_16 = first_hops_vals[q];
                        LDKChannelDetails first_hops_conv_16_conv;
-                       first_hops_conv_16_conv.inner = (void*)(first_hops_conv_16 & (~1));
-                       first_hops_conv_16_conv.is_owned = (first_hops_conv_16 & 1) || (first_hops_conv_16 == 0);
+                       first_hops_conv_16_conv.inner = untag_ptr(first_hops_conv_16);
+                       first_hops_conv_16_conv.is_owned = ptr_is_owned(first_hops_conv_16);
                        CHECK_INNER_FIELD_ACCESS_OR_NULL(first_hops_conv_16_conv);
+                       first_hops_conv_16_conv.is_owned = false;
                        first_hops_constr.data[q] = first_hops_conv_16_conv;
                }
                (*env)->ReleaseLongArrayElements(env, first_hops, first_hops_vals, 0);
                first_hops_ptr = &first_hops_constr;
        }
-       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
+       void* logger_ptr = untag_ptr(logger);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
        if (logger_conv.free == LDKLogger_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKLogger_JCalls_cloned(&logger_conv);
        }
-       void* scorer_ptr = (void*)(((uintptr_t)scorer) & ~1);
-       if (!(scorer & 1)) { CHECK_ACCESS(scorer_ptr); }
+       void* scorer_ptr = untag_ptr(scorer);
+       if (ptr_is_owned(scorer)) { CHECK_ACCESS(scorer_ptr); }
        LDKScore* scorer_conv = (LDKScore*)scorer_ptr;
        unsigned char random_seed_bytes_arr[32];
        CHECK((*env)->GetArrayLength(env, random_seed_bytes) == 32);
@@ -46430,7 +44569,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_find_1route(JNIEnv *env, jc
        LDKCResult_RouteLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteLightningErrorZ), "LDKCResult_RouteLightningErrorZ");
        *ret_conv = find_route(our_node_pubkey_ref, &route_params_conv, &network_graph_conv, first_hops_ptr, logger_conv, scorer_conv, random_seed_bytes_ref);
        if (first_hops_ptr != NULL) { FREE(first_hops_constr.data); }
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_build_1route_1from_1hops(JNIEnv *env, jclass clz, int8_tArray our_node_pubkey, jobjectArray hops, int64_t route_params, int64_t network_graph, int64_t logger, int8_tArray random_seed_bytes) {
@@ -46451,14 +44590,16 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_build_1route_1from_1hops(JN
                hops_constr.data[i] = hops_conv_8_ref;
        }
        LDKRouteParameters route_params_conv;
-       route_params_conv.inner = (void*)(route_params & (~1));
-       route_params_conv.is_owned = false;
+       route_params_conv.inner = untag_ptr(route_params);
+       route_params_conv.is_owned = ptr_is_owned(route_params);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(route_params_conv);
+       route_params_conv.is_owned = false;
        LDKNetworkGraph network_graph_conv;
-       network_graph_conv.inner = (void*)(network_graph & (~1));
-       network_graph_conv.is_owned = false;
+       network_graph_conv.inner = untag_ptr(network_graph);
+       network_graph_conv.is_owned = ptr_is_owned(network_graph);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(network_graph_conv);
-       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
+       network_graph_conv.is_owned = false;
+       void* logger_ptr = untag_ptr(logger);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
        if (logger_conv.free == LDKLogger_JCalls_free) {
@@ -46471,40 +44612,41 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_build_1route_1from_1hops(JN
        unsigned char (*random_seed_bytes_ref)[32] = &random_seed_bytes_arr;
        LDKCResult_RouteLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteLightningErrorZ), "LDKCResult_RouteLightningErrorZ");
        *ret_conv = build_route_from_hops(our_node_pubkey_ref, hops_constr, &route_params_conv, &network_graph_conv, logger_conv, random_seed_bytes_ref);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Score_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKScore this_ptr_conv = *(LDKScore*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        Score_free(this_ptr_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_LockableScore_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKLockableScore this_ptr_conv = *(LDKLockableScore*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        LockableScore_free(this_ptr_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_MultiThreadedLockableScore_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKMultiThreadedLockableScore this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        MultiThreadedLockableScore_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_MultiThreadedLockableScore_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKMultiThreadedLockableScore obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = MultiThreadedLockableScore_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -46513,7 +44655,7 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_MultiThreadedLockableSc
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MultiThreadedLockableScore_1new(JNIEnv *env, jclass clz, int64_t score) {
-       void* score_ptr = (void*)(((uintptr_t)score) & ~1);
+       void* score_ptr = untag_ptr(score);
        CHECK_ACCESS(score_ptr);
        LDKScore score_conv = *(LDKScore*)(score_ptr);
        if (score_conv.free == LDKScore_JCalls_free) {
@@ -46522,210 +44664,187 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MultiThreadedLockableScore_
        }
        LDKMultiThreadedLockableScore ret_var = MultiThreadedLockableScore_new(score_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelUsage_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKChannelUsage this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ChannelUsage_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelUsage_1get_1amount_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelUsage this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ChannelUsage_get_amount_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelUsage_1set_1amount_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelUsage this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelUsage_set_amount_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelUsage_1get_1inflight_1htlc_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelUsage this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ChannelUsage_get_inflight_htlc_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelUsage_1set_1inflight_1htlc_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelUsage this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ChannelUsage_set_inflight_htlc_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelUsage_1get_1effective_1capacity(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelUsage this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKEffectiveCapacity *ret_copy = MALLOC(sizeof(LDKEffectiveCapacity), "LDKEffectiveCapacity");
        *ret_copy = ChannelUsage_get_effective_capacity(&this_ptr_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelUsage_1set_1effective_1capacity(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelUsage this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
-       void* val_ptr = (void*)(((uintptr_t)val) & ~1);
+       this_ptr_conv.is_owned = false;
+       void* val_ptr = untag_ptr(val);
        CHECK_ACCESS(val_ptr);
        LDKEffectiveCapacity val_conv = *(LDKEffectiveCapacity*)(val_ptr);
-       val_conv = EffectiveCapacity_clone((LDKEffectiveCapacity*)(((uintptr_t)val) & ~1));
+       val_conv = EffectiveCapacity_clone((LDKEffectiveCapacity*)untag_ptr(val));
        ChannelUsage_set_effective_capacity(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelUsage_1new(JNIEnv *env, jclass clz, int64_t amount_msat_arg, int64_t inflight_htlc_msat_arg, int64_t effective_capacity_arg) {
-       void* effective_capacity_arg_ptr = (void*)(((uintptr_t)effective_capacity_arg) & ~1);
+       void* effective_capacity_arg_ptr = untag_ptr(effective_capacity_arg);
        CHECK_ACCESS(effective_capacity_arg_ptr);
        LDKEffectiveCapacity effective_capacity_arg_conv = *(LDKEffectiveCapacity*)(effective_capacity_arg_ptr);
-       effective_capacity_arg_conv = EffectiveCapacity_clone((LDKEffectiveCapacity*)(((uintptr_t)effective_capacity_arg) & ~1));
+       effective_capacity_arg_conv = EffectiveCapacity_clone((LDKEffectiveCapacity*)untag_ptr(effective_capacity_arg));
        LDKChannelUsage ret_var = ChannelUsage_new(amount_msat_arg, inflight_htlc_msat_arg, effective_capacity_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t ChannelUsage_clone_ptr(LDKChannelUsage *NONNULL_PTR arg) {
+static inline uint64_t ChannelUsage_clone_ptr(LDKChannelUsage *NONNULL_PTR arg) {
        LDKChannelUsage ret_var = ChannelUsage_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelUsage_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKChannelUsage arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ChannelUsage_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelUsage_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKChannelUsage orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKChannelUsage ret_var = ChannelUsage_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_FixedPenaltyScorer_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKFixedPenaltyScorer this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        FixedPenaltyScorer_free(this_obj_conv);
 }
 
-static inline uintptr_t FixedPenaltyScorer_clone_ptr(LDKFixedPenaltyScorer *NONNULL_PTR arg) {
+static inline uint64_t FixedPenaltyScorer_clone_ptr(LDKFixedPenaltyScorer *NONNULL_PTR arg) {
        LDKFixedPenaltyScorer ret_var = FixedPenaltyScorer_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_FixedPenaltyScorer_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKFixedPenaltyScorer arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = FixedPenaltyScorer_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_FixedPenaltyScorer_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKFixedPenaltyScorer orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKFixedPenaltyScorer ret_var = FixedPenaltyScorer_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_FixedPenaltyScorer_1with_1penalty(JNIEnv *env, jclass clz, int64_t penalty_msat) {
        LDKFixedPenaltyScorer ret_var = FixedPenaltyScorer_with_penalty(penalty_msat);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_FixedPenaltyScorer_1as_1Score(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKFixedPenaltyScorer this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKScore* ret_ret = MALLOC(sizeof(LDKScore), "LDKScore");
        *ret_ret = FixedPenaltyScorer_as_Score(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_FixedPenaltyScorer_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKFixedPenaltyScorer obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = FixedPenaltyScorer_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -46740,193 +44859,200 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_FixedPenaltyScorer_1read(JN
        LDKCResult_FixedPenaltyScorerDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_FixedPenaltyScorerDecodeErrorZ), "LDKCResult_FixedPenaltyScorerDecodeErrorZ");
        *ret_conv = FixedPenaltyScorer_read(ser_ref, arg);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ProbabilisticScorer_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKProbabilisticScorer this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ProbabilisticScorer_free(this_obj_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ProbabilisticScoringParameters_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKProbabilisticScoringParameters this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ProbabilisticScoringParameters_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ProbabilisticScoringParameters_1get_1base_1penalty_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKProbabilisticScoringParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ProbabilisticScoringParameters_get_base_penalty_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ProbabilisticScoringParameters_1set_1base_1penalty_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKProbabilisticScoringParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ProbabilisticScoringParameters_set_base_penalty_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ProbabilisticScoringParameters_1get_1base_1penalty_1amount_1multiplier_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKProbabilisticScoringParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ProbabilisticScoringParameters_get_base_penalty_amount_multiplier_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ProbabilisticScoringParameters_1set_1base_1penalty_1amount_1multiplier_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKProbabilisticScoringParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ProbabilisticScoringParameters_set_base_penalty_amount_multiplier_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ProbabilisticScoringParameters_1get_1liquidity_1penalty_1multiplier_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKProbabilisticScoringParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ProbabilisticScoringParameters_get_liquidity_penalty_multiplier_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ProbabilisticScoringParameters_1set_1liquidity_1penalty_1multiplier_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKProbabilisticScoringParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ProbabilisticScoringParameters_set_liquidity_penalty_multiplier_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ProbabilisticScoringParameters_1get_1liquidity_1offset_1half_1life(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKProbabilisticScoringParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ProbabilisticScoringParameters_get_liquidity_offset_half_life(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ProbabilisticScoringParameters_1set_1liquidity_1offset_1half_1life(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKProbabilisticScoringParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ProbabilisticScoringParameters_set_liquidity_offset_half_life(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ProbabilisticScoringParameters_1get_1liquidity_1penalty_1amount_1multiplier_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKProbabilisticScoringParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ProbabilisticScoringParameters_get_liquidity_penalty_amount_multiplier_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ProbabilisticScoringParameters_1set_1liquidity_1penalty_1amount_1multiplier_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKProbabilisticScoringParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ProbabilisticScoringParameters_set_liquidity_penalty_amount_multiplier_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ProbabilisticScoringParameters_1get_1anti_1probing_1penalty_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKProbabilisticScoringParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ProbabilisticScoringParameters_get_anti_probing_penalty_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ProbabilisticScoringParameters_1set_1anti_1probing_1penalty_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKProbabilisticScoringParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ProbabilisticScoringParameters_set_anti_probing_penalty_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ProbabilisticScoringParameters_1get_1considered_1impossible_1penalty_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKProbabilisticScoringParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = ProbabilisticScoringParameters_get_considered_impossible_penalty_msat(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ProbabilisticScoringParameters_1set_1considered_1impossible_1penalty_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKProbabilisticScoringParameters this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        ProbabilisticScoringParameters_set_considered_impossible_penalty_msat(&this_ptr_conv, val);
 }
 
-static inline uintptr_t ProbabilisticScoringParameters_clone_ptr(LDKProbabilisticScoringParameters *NONNULL_PTR arg) {
+static inline uint64_t ProbabilisticScoringParameters_clone_ptr(LDKProbabilisticScoringParameters *NONNULL_PTR arg) {
        LDKProbabilisticScoringParameters ret_var = ProbabilisticScoringParameters_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ProbabilisticScoringParameters_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKProbabilisticScoringParameters arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ProbabilisticScoringParameters_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ProbabilisticScoringParameters_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKProbabilisticScoringParameters orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKProbabilisticScoringParameters ret_var = ProbabilisticScoringParameters_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ProbabilisticScorer_1new(JNIEnv *env, jclass clz, int64_t params, int64_t network_graph, int64_t logger) {
        LDKProbabilisticScoringParameters params_conv;
-       params_conv.inner = (void*)(params & (~1));
-       params_conv.is_owned = (params & 1) || (params == 0);
+       params_conv.inner = untag_ptr(params);
+       params_conv.is_owned = ptr_is_owned(params);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(params_conv);
        params_conv = ProbabilisticScoringParameters_clone(&params_conv);
        LDKNetworkGraph network_graph_conv;
-       network_graph_conv.inner = (void*)(network_graph & (~1));
-       network_graph_conv.is_owned = false;
+       network_graph_conv.inner = untag_ptr(network_graph);
+       network_graph_conv.is_owned = ptr_is_owned(network_graph);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(network_graph_conv);
-       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
+       network_graph_conv.is_owned = false;
+       void* logger_ptr = untag_ptr(logger);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
        if (logger_conv.free == LDKLogger_JCalls_free) {
@@ -46935,100 +45061,108 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ProbabilisticScorer_1new(JN
        }
        LDKProbabilisticScorer ret_var = ProbabilisticScorer_new(params_conv, &network_graph_conv, logger_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ProbabilisticScorer_1debug_1log_1liquidity_1stats(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKProbabilisticScorer this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        ProbabilisticScorer_debug_log_liquidity_stats(&this_arg_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ProbabilisticScorer_1estimated_1channel_1liquidity_1range(JNIEnv *env, jclass clz, int64_t this_arg, int64_t scid, int64_t target) {
        LDKProbabilisticScorer this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKNodeId target_conv;
-       target_conv.inner = (void*)(target & (~1));
-       target_conv.is_owned = false;
+       target_conv.inner = untag_ptr(target);
+       target_conv.is_owned = ptr_is_owned(target);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(target_conv);
+       target_conv.is_owned = false;
        LDKCOption_C2Tuple_u64u64ZZ *ret_copy = MALLOC(sizeof(LDKCOption_C2Tuple_u64u64ZZ), "LDKCOption_C2Tuple_u64u64ZZ");
        *ret_copy = ProbabilisticScorer_estimated_channel_liquidity_range(&this_arg_conv, scid, &target_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ProbabilisticScorer_1add_1banned(JNIEnv *env, jclass clz, int64_t this_arg, int64_t node_id) {
        LDKProbabilisticScorer this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKNodeId node_id_conv;
-       node_id_conv.inner = (void*)(node_id & (~1));
-       node_id_conv.is_owned = false;
+       node_id_conv.inner = untag_ptr(node_id);
+       node_id_conv.is_owned = ptr_is_owned(node_id);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(node_id_conv);
+       node_id_conv.is_owned = false;
        ProbabilisticScorer_add_banned(&this_arg_conv, &node_id_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ProbabilisticScorer_1remove_1banned(JNIEnv *env, jclass clz, int64_t this_arg, int64_t node_id) {
        LDKProbabilisticScorer this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKNodeId node_id_conv;
-       node_id_conv.inner = (void*)(node_id & (~1));
-       node_id_conv.is_owned = false;
+       node_id_conv.inner = untag_ptr(node_id);
+       node_id_conv.is_owned = ptr_is_owned(node_id);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(node_id_conv);
+       node_id_conv.is_owned = false;
        ProbabilisticScorer_remove_banned(&this_arg_conv, &node_id_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ProbabilisticScorer_1set_1manual_1penalty(JNIEnv *env, jclass clz, int64_t this_arg, int64_t node_id, int64_t penalty) {
        LDKProbabilisticScorer this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKNodeId node_id_conv;
-       node_id_conv.inner = (void*)(node_id & (~1));
-       node_id_conv.is_owned = false;
+       node_id_conv.inner = untag_ptr(node_id);
+       node_id_conv.is_owned = ptr_is_owned(node_id);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(node_id_conv);
+       node_id_conv.is_owned = false;
        ProbabilisticScorer_set_manual_penalty(&this_arg_conv, &node_id_conv, penalty);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ProbabilisticScorer_1remove_1manual_1penalty(JNIEnv *env, jclass clz, int64_t this_arg, int64_t node_id) {
        LDKProbabilisticScorer this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKNodeId node_id_conv;
-       node_id_conv.inner = (void*)(node_id & (~1));
-       node_id_conv.is_owned = false;
+       node_id_conv.inner = untag_ptr(node_id);
+       node_id_conv.is_owned = ptr_is_owned(node_id);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(node_id_conv);
+       node_id_conv.is_owned = false;
        ProbabilisticScorer_remove_manual_penalty(&this_arg_conv, &node_id_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ProbabilisticScorer_1clear_1manual_1penalties(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKProbabilisticScorer this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        ProbabilisticScorer_clear_manual_penalties(&this_arg_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ProbabilisticScoringParameters_1add_1banned_1from_1list(JNIEnv *env, jclass clz, int64_t this_arg, int64_tArray node_ids) {
        LDKProbabilisticScoringParameters this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCVec_NodeIdZ node_ids_constr;
        node_ids_constr.datalen = (*env)->GetArrayLength(env, node_ids);
        if (node_ids_constr.datalen > 0)
@@ -47039,8 +45173,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ProbabilisticScoringParameters
        for (size_t i = 0; i < node_ids_constr.datalen; i++) {
                int64_t node_ids_conv_8 = node_ids_vals[i];
                LDKNodeId node_ids_conv_8_conv;
-               node_ids_conv_8_conv.inner = (void*)(node_ids_conv_8 & (~1));
-               node_ids_conv_8_conv.is_owned = (node_ids_conv_8 & 1) || (node_ids_conv_8 == 0);
+               node_ids_conv_8_conv.inner = untag_ptr(node_ids_conv_8);
+               node_ids_conv_8_conv.is_owned = ptr_is_owned(node_ids_conv_8);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(node_ids_conv_8_conv);
                node_ids_conv_8_conv = NodeId_clone(&node_ids_conv_8_conv);
                node_ids_constr.data[i] = node_ids_conv_8_conv;
@@ -47052,31 +45186,28 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ProbabilisticScoringParameters
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ProbabilisticScoringParameters_1default(JNIEnv *env, jclass clz) {
        LDKProbabilisticScoringParameters ret_var = ProbabilisticScoringParameters_default();
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ProbabilisticScorer_1as_1Score(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKProbabilisticScorer this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKScore* ret_ret = MALLOC(sizeof(LDKScore), "LDKScore");
        *ret_ret = ProbabilisticScorer_as_Score(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ProbabilisticScorer_1write(JNIEnv *env, jclass clz, int64_t obj) {
        LDKProbabilisticScorer obj_conv;
-       obj_conv.inner = (void*)(obj & (~1));
-       obj_conv.is_owned = false;
+       obj_conv.inner = untag_ptr(obj);
+       obj_conv.is_owned = ptr_is_owned(obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(obj_conv);
+       obj_conv.is_owned = false;
        LDKCVec_u8Z ret_var = ProbabilisticScorer_write(&obj_conv);
        int8_tArray ret_arr = (*env)->NewByteArray(env, ret_var.datalen);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -47089,15 +45220,16 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ProbabilisticScorer_1read(J
        ser_ref.datalen = (*env)->GetArrayLength(env, ser);
        ser_ref.data = (*env)->GetByteArrayElements (env, ser, NULL);
        LDKProbabilisticScoringParameters arg_a_conv;
-       arg_a_conv.inner = (void*)(arg_a & (~1));
-       arg_a_conv.is_owned = (arg_a & 1) || (arg_a == 0);
+       arg_a_conv.inner = untag_ptr(arg_a);
+       arg_a_conv.is_owned = ptr_is_owned(arg_a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_a_conv);
        arg_a_conv = ProbabilisticScoringParameters_clone(&arg_a_conv);
        LDKNetworkGraph arg_b_conv;
-       arg_b_conv.inner = (void*)(arg_b & (~1));
-       arg_b_conv.is_owned = false;
+       arg_b_conv.inner = untag_ptr(arg_b);
+       arg_b_conv.is_owned = ptr_is_owned(arg_b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_b_conv);
-       void* arg_c_ptr = (void*)(((uintptr_t)arg_c) & ~1);
+       arg_b_conv.is_owned = false;
+       void* arg_c_ptr = untag_ptr(arg_c);
        CHECK_ACCESS(arg_c_ptr);
        LDKLogger arg_c_conv = *(LDKLogger*)(arg_c_ptr);
        if (arg_c_conv.free == LDKLogger_JCalls_free) {
@@ -47107,13 +45239,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ProbabilisticScorer_1read(J
        LDKCResult_ProbabilisticScorerDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_ProbabilisticScorerDecodeErrorZ), "LDKCResult_ProbabilisticScorerDecodeErrorZ");
        *ret_conv = ProbabilisticScorer_read(ser_ref, arg_a_conv, &arg_b_conv, arg_c_conv);
        (*env)->ReleaseByteArrayElements(env, ser, (int8_t*)ser_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_FilesystemPersister_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKFilesystemPersister this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        FilesystemPersister_free(this_obj_conv);
 }
@@ -47122,21 +45254,17 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_FilesystemPersister_1new(JN
        LDKStr path_to_channel_data_conv = java_to_owned_str(env, path_to_channel_data);
        LDKFilesystemPersister ret_var = FilesystemPersister_new(path_to_channel_data_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_FilesystemPersister_1get_1data_1dir(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKFilesystemPersister this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKStr ret_str = FilesystemPersister_get_data_dir(&this_arg_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
        Str_free(ret_str);
@@ -47145,10 +45273,11 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_FilesystemPersister_1get_1d
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_FilesystemPersister_1read_1channelmonitors(JNIEnv *env, jclass clz, int64_t this_arg, int64_t keys_manager) {
        LDKFilesystemPersister this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
-       void* keys_manager_ptr = (void*)(((uintptr_t)keys_manager) & ~1);
+       this_arg_conv.is_owned = false;
+       void* keys_manager_ptr = untag_ptr(keys_manager);
        CHECK_ACCESS(keys_manager_ptr);
        LDKKeysInterface keys_manager_conv = *(LDKKeysInterface*)(keys_manager_ptr);
        if (keys_manager_conv.free == LDKKeysInterface_JCalls_free) {
@@ -47157,64 +45286,66 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_FilesystemPersister_1read_1
        }
        LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ), "LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ");
        *ret_conv = FilesystemPersister_read_channelmonitors(&this_arg_conv, keys_manager_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_BackgroundProcessor_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKBackgroundProcessor this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        BackgroundProcessor_free(this_obj_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_GossipSync_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKGossipSync this_ptr_conv = *(LDKGossipSync*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        GossipSync_free(this_ptr_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_GossipSync_1p2_1p(JNIEnv *env, jclass clz, int64_t a) {
        LDKP2PGossipSync a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKGossipSync *ret_copy = MALLOC(sizeof(LDKGossipSync), "LDKGossipSync");
        *ret_copy = GossipSync_p2_p(&a_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_GossipSync_1rapid(JNIEnv *env, jclass clz, int64_t a) {
        LDKRapidGossipSync a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKGossipSync *ret_copy = MALLOC(sizeof(LDKGossipSync), "LDKGossipSync");
        *ret_copy = GossipSync_rapid(&a_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_GossipSync_1none(JNIEnv *env, jclass clz) {
        LDKGossipSync *ret_copy = MALLOC(sizeof(LDKGossipSync), "LDKGossipSync");
        *ret_copy = GossipSync_none();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BackgroundProcessor_1start(JNIEnv *env, jclass clz, int64_t persister, int64_t event_handler, int64_t chain_monitor, int64_t channel_manager, int64_t gossip_sync, int64_t peer_manager, int64_t logger, int64_t scorer) {
-       void* persister_ptr = (void*)(((uintptr_t)persister) & ~1);
+       void* persister_ptr = untag_ptr(persister);
        CHECK_ACCESS(persister_ptr);
        LDKPersister persister_conv = *(LDKPersister*)(persister_ptr);
        if (persister_conv.free == LDKPersister_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKPersister_JCalls_cloned(&persister_conv);
        }
-       void* event_handler_ptr = (void*)(((uintptr_t)event_handler) & ~1);
+       void* event_handler_ptr = untag_ptr(event_handler);
        CHECK_ACCESS(event_handler_ptr);
        LDKEventHandler event_handler_conv = *(LDKEventHandler*)(event_handler_ptr);
        if (event_handler_conv.free == LDKEventHandler_JCalls_free) {
@@ -47222,22 +45353,25 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BackgroundProcessor_1start(
                LDKEventHandler_JCalls_cloned(&event_handler_conv);
        }
        LDKChainMonitor chain_monitor_conv;
-       chain_monitor_conv.inner = (void*)(chain_monitor & (~1));
-       chain_monitor_conv.is_owned = false;
+       chain_monitor_conv.inner = untag_ptr(chain_monitor);
+       chain_monitor_conv.is_owned = ptr_is_owned(chain_monitor);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(chain_monitor_conv);
+       chain_monitor_conv.is_owned = false;
        LDKChannelManager channel_manager_conv;
-       channel_manager_conv.inner = (void*)(channel_manager & (~1));
-       channel_manager_conv.is_owned = false;
+       channel_manager_conv.inner = untag_ptr(channel_manager);
+       channel_manager_conv.is_owned = ptr_is_owned(channel_manager);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channel_manager_conv);
-       void* gossip_sync_ptr = (void*)(((uintptr_t)gossip_sync) & ~1);
+       channel_manager_conv.is_owned = false;
+       void* gossip_sync_ptr = untag_ptr(gossip_sync);
        CHECK_ACCESS(gossip_sync_ptr);
        LDKGossipSync gossip_sync_conv = *(LDKGossipSync*)(gossip_sync_ptr);
        // WARNING: we may need a move here but no clone is available for LDKGossipSync
        LDKPeerManager peer_manager_conv;
-       peer_manager_conv.inner = (void*)(peer_manager & (~1));
-       peer_manager_conv.is_owned = false;
+       peer_manager_conv.inner = untag_ptr(peer_manager);
+       peer_manager_conv.is_owned = ptr_is_owned(peer_manager);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(peer_manager_conv);
-       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
+       peer_manager_conv.is_owned = false;
+       void* logger_ptr = untag_ptr(logger);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
        if (logger_conv.free == LDKLogger_JCalls_free) {
@@ -47245,80 +45379,78 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BackgroundProcessor_1start(
                LDKLogger_JCalls_cloned(&logger_conv);
        }
        LDKMultiThreadedLockableScore scorer_conv;
-       scorer_conv.inner = (void*)(scorer & (~1));
-       scorer_conv.is_owned = (scorer & 1) || (scorer == 0);
+       scorer_conv.inner = untag_ptr(scorer);
+       scorer_conv.is_owned = ptr_is_owned(scorer);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(scorer_conv);
+       scorer_conv.is_owned = false;
        LDKBackgroundProcessor ret_var = BackgroundProcessor_start(persister_conv, event_handler_conv, &chain_monitor_conv, &channel_manager_conv, gossip_sync_conv, &peer_manager_conv, logger_conv, scorer_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BackgroundProcessor_1join(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKBackgroundProcessor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = (this_arg & 1) || (this_arg == 0);
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        // WARNING: we need a move here but no clone is available for LDKBackgroundProcessor
+       
        LDKCResult_NoneErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneErrorZ), "LDKCResult_NoneErrorZ");
        *ret_conv = BackgroundProcessor_join(this_arg_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BackgroundProcessor_1stop(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKBackgroundProcessor this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = (this_arg & 1) || (this_arg == 0);
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        // WARNING: we need a move here but no clone is available for LDKBackgroundProcessor
+       
        LDKCResult_NoneErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneErrorZ), "LDKCResult_NoneErrorZ");
        *ret_conv = BackgroundProcessor_stop(this_arg_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ParseError_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKParseError this_ptr_conv = *(LDKParseError*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        ParseError_free(this_ptr_conv);
 }
 
-static inline uintptr_t ParseError_clone_ptr(LDKParseError *NONNULL_PTR arg) {
+static inline uint64_t ParseError_clone_ptr(LDKParseError *NONNULL_PTR arg) {
        LDKParseError *ret_copy = MALLOC(sizeof(LDKParseError), "LDKParseError");
        *ret_copy = ParseError_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ParseError_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKParseError* arg_conv = (LDKParseError*)arg;
+       LDKParseError* arg_conv = (LDKParseError*)untag_ptr(arg);
        int64_t ret_conv = ParseError_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ParseError_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKParseError* orig_conv = (LDKParseError*)orig;
+       LDKParseError* orig_conv = (LDKParseError*)untag_ptr(orig);
        LDKParseError *ret_copy = MALLOC(sizeof(LDKParseError), "LDKParseError");
        *ret_copy = ParseError_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ParseError_1bech32_1error(JNIEnv *env, jclass clz, int64_t a) {
-       void* a_ptr = (void*)(((uintptr_t)a) & ~1);
+       void* a_ptr = untag_ptr(a);
        CHECK_ACCESS(a_ptr);
        LDKBech32Error a_conv = *(LDKBech32Error*)(a_ptr);
-       a_conv = Bech32Error_clone((LDKBech32Error*)(((uintptr_t)a) & ~1));
+       a_conv = Bech32Error_clone((LDKBech32Error*)untag_ptr(a));
        LDKParseError *ret_copy = MALLOC(sizeof(LDKParseError), "LDKParseError");
        *ret_copy = ParseError_bech32_error(a_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -47326,7 +45458,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ParseError_1parse_1amount_1
        
        LDKParseError *ret_copy = MALLOC(sizeof(LDKParseError), "LDKParseError");
        *ret_copy = ParseError_parse_amount_error((LDKError){ ._dummy = 0 });
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -47334,49 +45466,49 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ParseError_1malformed_1sign
        LDKSecp256k1Error a_conv = LDKSecp256k1Error_from_java(env, a);
        LDKParseError *ret_copy = MALLOC(sizeof(LDKParseError), "LDKParseError");
        *ret_copy = ParseError_malformed_signature(a_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ParseError_1bad_1prefix(JNIEnv *env, jclass clz) {
        LDKParseError *ret_copy = MALLOC(sizeof(LDKParseError), "LDKParseError");
        *ret_copy = ParseError_bad_prefix();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ParseError_1unknown_1currency(JNIEnv *env, jclass clz) {
        LDKParseError *ret_copy = MALLOC(sizeof(LDKParseError), "LDKParseError");
        *ret_copy = ParseError_unknown_currency();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ParseError_1unknown_1si_1prefix(JNIEnv *env, jclass clz) {
        LDKParseError *ret_copy = MALLOC(sizeof(LDKParseError), "LDKParseError");
        *ret_copy = ParseError_unknown_si_prefix();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ParseError_1malformed_1hrp(JNIEnv *env, jclass clz) {
        LDKParseError *ret_copy = MALLOC(sizeof(LDKParseError), "LDKParseError");
        *ret_copy = ParseError_malformed_hrp();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ParseError_1too_1short_1data_1part(JNIEnv *env, jclass clz) {
        LDKParseError *ret_copy = MALLOC(sizeof(LDKParseError), "LDKParseError");
        *ret_copy = ParseError_too_short_data_part();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ParseError_1unexpected_1end_1of_1tagged_1fields(JNIEnv *env, jclass clz) {
        LDKParseError *ret_copy = MALLOC(sizeof(LDKParseError), "LDKParseError");
        *ret_copy = ParseError_unexpected_end_of_tagged_fields();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -47384,49 +45516,49 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ParseError_1description_1de
        
        LDKParseError *ret_copy = MALLOC(sizeof(LDKParseError), "LDKParseError");
        *ret_copy = ParseError_description_decode_error((LDKError){ ._dummy = 0 });
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ParseError_1padding_1error(JNIEnv *env, jclass clz) {
        LDKParseError *ret_copy = MALLOC(sizeof(LDKParseError), "LDKParseError");
        *ret_copy = ParseError_padding_error();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ParseError_1integer_1overflow_1error(JNIEnv *env, jclass clz) {
        LDKParseError *ret_copy = MALLOC(sizeof(LDKParseError), "LDKParseError");
        *ret_copy = ParseError_integer_overflow_error();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ParseError_1invalid_1seg_1wit_1program_1length(JNIEnv *env, jclass clz) {
        LDKParseError *ret_copy = MALLOC(sizeof(LDKParseError), "LDKParseError");
        *ret_copy = ParseError_invalid_seg_wit_program_length();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ParseError_1invalid_1pub_1key_1hash_1length(JNIEnv *env, jclass clz) {
        LDKParseError *ret_copy = MALLOC(sizeof(LDKParseError), "LDKParseError");
        *ret_copy = ParseError_invalid_pub_key_hash_length();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ParseError_1invalid_1script_1hash_1length(JNIEnv *env, jclass clz) {
        LDKParseError *ret_copy = MALLOC(sizeof(LDKParseError), "LDKParseError");
        *ret_copy = ParseError_invalid_script_hash_length();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ParseError_1invalid_1recovery_1id(JNIEnv *env, jclass clz) {
        LDKParseError *ret_copy = MALLOC(sizeof(LDKParseError), "LDKParseError");
        *ret_copy = ParseError_invalid_recovery_id();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -47434,54 +45566,54 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ParseError_1invalid_1slice_
        LDKStr a_conv = java_to_owned_str(env, a);
        LDKParseError *ret_copy = MALLOC(sizeof(LDKParseError), "LDKParseError");
        *ret_copy = ParseError_invalid_slice_length(a_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ParseError_1skip(JNIEnv *env, jclass clz) {
        LDKParseError *ret_copy = MALLOC(sizeof(LDKParseError), "LDKParseError");
        *ret_copy = ParseError_skip();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ParseOrSemanticError_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKParseOrSemanticError this_ptr_conv = *(LDKParseOrSemanticError*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        ParseOrSemanticError_free(this_ptr_conv);
 }
 
-static inline uintptr_t ParseOrSemanticError_clone_ptr(LDKParseOrSemanticError *NONNULL_PTR arg) {
+static inline uint64_t ParseOrSemanticError_clone_ptr(LDKParseOrSemanticError *NONNULL_PTR arg) {
        LDKParseOrSemanticError *ret_copy = MALLOC(sizeof(LDKParseOrSemanticError), "LDKParseOrSemanticError");
        *ret_copy = ParseOrSemanticError_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ParseOrSemanticError_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKParseOrSemanticError* arg_conv = (LDKParseOrSemanticError*)arg;
+       LDKParseOrSemanticError* arg_conv = (LDKParseOrSemanticError*)untag_ptr(arg);
        int64_t ret_conv = ParseOrSemanticError_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ParseOrSemanticError_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKParseOrSemanticError* orig_conv = (LDKParseOrSemanticError*)orig;
+       LDKParseOrSemanticError* orig_conv = (LDKParseOrSemanticError*)untag_ptr(orig);
        LDKParseOrSemanticError *ret_copy = MALLOC(sizeof(LDKParseOrSemanticError), "LDKParseOrSemanticError");
        *ret_copy = ParseOrSemanticError_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ParseOrSemanticError_1parse_1error(JNIEnv *env, jclass clz, int64_t a) {
-       void* a_ptr = (void*)(((uintptr_t)a) & ~1);
+       void* a_ptr = untag_ptr(a);
        CHECK_ACCESS(a_ptr);
        LDKParseError a_conv = *(LDKParseError*)(a_ptr);
-       a_conv = ParseError_clone((LDKParseError*)(((uintptr_t)a) & ~1));
+       a_conv = ParseError_clone((LDKParseError*)untag_ptr(a));
        LDKParseOrSemanticError *ret_copy = MALLOC(sizeof(LDKParseOrSemanticError), "LDKParseOrSemanticError");
        *ret_copy = ParseOrSemanticError_parse_error(a_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -47489,161 +45621,146 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ParseOrSemanticError_1seman
        LDKSemanticError a_conv = LDKSemanticError_from_java(env, a);
        LDKParseOrSemanticError *ret_copy = MALLOC(sizeof(LDKParseOrSemanticError), "LDKParseOrSemanticError");
        *ret_copy = ParseOrSemanticError_semantic_error(a_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Invoice_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKInvoice this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        Invoice_free(this_obj_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_Invoice_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKInvoice a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKInvoice b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = Invoice_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
-static inline uintptr_t Invoice_clone_ptr(LDKInvoice *NONNULL_PTR arg) {
+static inline uint64_t Invoice_clone_ptr(LDKInvoice *NONNULL_PTR arg) {
        LDKInvoice ret_var = Invoice_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Invoice_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKInvoice arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = Invoice_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Invoice_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKInvoice orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKInvoice ret_var = Invoice_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_SignedRawInvoice_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKSignedRawInvoice this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        SignedRawInvoice_free(this_obj_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_SignedRawInvoice_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKSignedRawInvoice a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKSignedRawInvoice b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = SignedRawInvoice_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
-static inline uintptr_t SignedRawInvoice_clone_ptr(LDKSignedRawInvoice *NONNULL_PTR arg) {
+static inline uint64_t SignedRawInvoice_clone_ptr(LDKSignedRawInvoice *NONNULL_PTR arg) {
        LDKSignedRawInvoice ret_var = SignedRawInvoice_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SignedRawInvoice_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKSignedRawInvoice arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = SignedRawInvoice_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SignedRawInvoice_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKSignedRawInvoice orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKSignedRawInvoice ret_var = SignedRawInvoice_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RawInvoice_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKRawInvoice this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        RawInvoice_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RawInvoice_1get_1data(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRawInvoice this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKRawDataPart ret_var = RawInvoice_get_data(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RawInvoice_1set_1data(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKRawInvoice this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKRawDataPart val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = RawDataPart_clone(&val_conv);
        RawInvoice_set_data(&this_ptr_conv, val_conv);
@@ -47651,88 +45768,79 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RawInvoice_1set_1data(JNIEnv *
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_RawInvoice_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKRawInvoice a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKRawInvoice b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = RawInvoice_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
-static inline uintptr_t RawInvoice_clone_ptr(LDKRawInvoice *NONNULL_PTR arg) {
+static inline uint64_t RawInvoice_clone_ptr(LDKRawInvoice *NONNULL_PTR arg) {
        LDKRawInvoice ret_var = RawInvoice_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RawInvoice_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKRawInvoice arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = RawInvoice_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RawInvoice_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKRawInvoice orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKRawInvoice ret_var = RawInvoice_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RawDataPart_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKRawDataPart this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        RawDataPart_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RawDataPart_1get_1timestamp(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKRawDataPart this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPositiveTimestamp ret_var = RawDataPart_get_timestamp(&this_ptr_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RawDataPart_1set_1timestamp(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKRawDataPart this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPositiveTimestamp val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv.inner = untag_ptr(val);
+       val_conv.is_owned = ptr_is_owned(val);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(val_conv);
        val_conv = PositiveTimestamp_clone(&val_conv);
        RawDataPart_set_timestamp(&this_ptr_conv, val_conv);
@@ -47740,116 +45848,104 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RawDataPart_1set_1timestamp(JN
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_RawDataPart_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKRawDataPart a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKRawDataPart b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = RawDataPart_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
-static inline uintptr_t RawDataPart_clone_ptr(LDKRawDataPart *NONNULL_PTR arg) {
+static inline uint64_t RawDataPart_clone_ptr(LDKRawDataPart *NONNULL_PTR arg) {
        LDKRawDataPart ret_var = RawDataPart_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RawDataPart_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKRawDataPart arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = RawDataPart_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RawDataPart_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKRawDataPart orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKRawDataPart ret_var = RawDataPart_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PositiveTimestamp_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKPositiveTimestamp this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        PositiveTimestamp_free(this_obj_conv);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_PositiveTimestamp_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKPositiveTimestamp a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKPositiveTimestamp b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = PositiveTimestamp_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
-static inline uintptr_t PositiveTimestamp_clone_ptr(LDKPositiveTimestamp *NONNULL_PTR arg) {
+static inline uint64_t PositiveTimestamp_clone_ptr(LDKPositiveTimestamp *NONNULL_PTR arg) {
        LDKPositiveTimestamp ret_var = PositiveTimestamp_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PositiveTimestamp_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKPositiveTimestamp arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = PositiveTimestamp_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PositiveTimestamp_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKPositiveTimestamp orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKPositiveTimestamp ret_var = PositiveTimestamp_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_SiPrefix_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKSiPrefix* orig_conv = (LDKSiPrefix*)(orig & ~1);
+       LDKSiPrefix* orig_conv = (LDKSiPrefix*)untag_ptr(orig);
        jclass ret_conv = LDKSiPrefix_to_java(env, SiPrefix_clone(orig_conv));
        return ret_conv;
 }
@@ -47875,20 +45971,20 @@ JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_SiPrefix_1pico(JNIEnv *env,
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_SiPrefix_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
-       LDKSiPrefix* a_conv = (LDKSiPrefix*)(a & ~1);
-       LDKSiPrefix* b_conv = (LDKSiPrefix*)(b & ~1);
+       LDKSiPrefix* a_conv = (LDKSiPrefix*)untag_ptr(a);
+       LDKSiPrefix* b_conv = (LDKSiPrefix*)untag_ptr(b);
        jboolean ret_conv = SiPrefix_eq(a_conv, b_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SiPrefix_1multiplier(JNIEnv *env, jclass clz, int64_t this_arg) {
-       LDKSiPrefix* this_arg_conv = (LDKSiPrefix*)(this_arg & ~1);
+       LDKSiPrefix* this_arg_conv = (LDKSiPrefix*)untag_ptr(this_arg);
        int64_t ret_conv = SiPrefix_multiplier(this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_Currency_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCurrency* orig_conv = (LDKCurrency*)(orig & ~1);
+       LDKCurrency* orig_conv = (LDKCurrency*)untag_ptr(orig);
        jclass ret_conv = LDKCurrency_to_java(env, Currency_clone(orig_conv));
        return ret_conv;
 }
@@ -47919,167 +46015,158 @@ JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_Currency_1signet(JNIEnv *env
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Currency_1hash(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCurrency* o_conv = (LDKCurrency*)(o & ~1);
+       LDKCurrency* o_conv = (LDKCurrency*)untag_ptr(o);
        int64_t ret_conv = Currency_hash(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_Currency_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
-       LDKCurrency* a_conv = (LDKCurrency*)(a & ~1);
-       LDKCurrency* b_conv = (LDKCurrency*)(b & ~1);
+       LDKCurrency* a_conv = (LDKCurrency*)untag_ptr(a);
+       LDKCurrency* b_conv = (LDKCurrency*)untag_ptr(b);
        jboolean ret_conv = Currency_eq(a_conv, b_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Sha256_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKSha256 this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        Sha256_free(this_obj_conv);
 }
 
-static inline uintptr_t Sha256_clone_ptr(LDKSha256 *NONNULL_PTR arg) {
+static inline uint64_t Sha256_clone_ptr(LDKSha256 *NONNULL_PTR arg) {
        LDKSha256 ret_var = Sha256_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Sha256_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKSha256 arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = Sha256_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Sha256_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKSha256 orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKSha256 ret_var = Sha256_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Sha256_1hash(JNIEnv *env, jclass clz, int64_t o) {
        LDKSha256 o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = false;
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
+       o_conv.is_owned = false;
        int64_t ret_conv = Sha256_hash(&o_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_Sha256_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKSha256 a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKSha256 b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = Sha256_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Description_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKDescription this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        Description_free(this_obj_conv);
 }
 
-static inline uintptr_t Description_clone_ptr(LDKDescription *NONNULL_PTR arg) {
+static inline uint64_t Description_clone_ptr(LDKDescription *NONNULL_PTR arg) {
        LDKDescription ret_var = Description_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Description_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKDescription arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = Description_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Description_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKDescription orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKDescription ret_var = Description_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Description_1hash(JNIEnv *env, jclass clz, int64_t o) {
        LDKDescription o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = false;
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
+       o_conv.is_owned = false;
        int64_t ret_conv = Description_hash(&o_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_Description_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKDescription a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKDescription b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = Description_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PayeePubKey_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKPayeePubKey this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        PayeePubKey_free(this_obj_conv);
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_PayeePubKey_1get_1a(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKPayeePubKey this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, PayeePubKey_get_a(&this_ptr_conv).compressed_form);
        return ret_arr;
@@ -48087,9 +46174,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_PayeePubKey_1get_1a(JNI
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PayeePubKey_1set_1a(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
        LDKPayeePubKey this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        LDKPublicKey val_ref;
        CHECK((*env)->GetArrayLength(env, val) == 33);
        (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
@@ -48102,268 +46190,245 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PayeePubKey_1new(JNIEnv *en
        (*env)->GetByteArrayRegion(env, a_arg, 0, 33, a_arg_ref.compressed_form);
        LDKPayeePubKey ret_var = PayeePubKey_new(a_arg_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t PayeePubKey_clone_ptr(LDKPayeePubKey *NONNULL_PTR arg) {
+static inline uint64_t PayeePubKey_clone_ptr(LDKPayeePubKey *NONNULL_PTR arg) {
        LDKPayeePubKey ret_var = PayeePubKey_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PayeePubKey_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKPayeePubKey arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = PayeePubKey_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PayeePubKey_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKPayeePubKey orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKPayeePubKey ret_var = PayeePubKey_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PayeePubKey_1hash(JNIEnv *env, jclass clz, int64_t o) {
        LDKPayeePubKey o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = false;
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
+       o_conv.is_owned = false;
        int64_t ret_conv = PayeePubKey_hash(&o_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_PayeePubKey_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKPayeePubKey a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKPayeePubKey b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = PayeePubKey_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ExpiryTime_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKExpiryTime this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        ExpiryTime_free(this_obj_conv);
 }
 
-static inline uintptr_t ExpiryTime_clone_ptr(LDKExpiryTime *NONNULL_PTR arg) {
+static inline uint64_t ExpiryTime_clone_ptr(LDKExpiryTime *NONNULL_PTR arg) {
        LDKExpiryTime ret_var = ExpiryTime_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ExpiryTime_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKExpiryTime arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = ExpiryTime_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ExpiryTime_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKExpiryTime orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKExpiryTime ret_var = ExpiryTime_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ExpiryTime_1hash(JNIEnv *env, jclass clz, int64_t o) {
        LDKExpiryTime o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = false;
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
+       o_conv.is_owned = false;
        int64_t ret_conv = ExpiryTime_hash(&o_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ExpiryTime_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKExpiryTime a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKExpiryTime b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = ExpiryTime_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_MinFinalCltvExpiry_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKMinFinalCltvExpiry this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        MinFinalCltvExpiry_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MinFinalCltvExpiry_1get_1a(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKMinFinalCltvExpiry this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        int64_t ret_conv = MinFinalCltvExpiry_get_a(&this_ptr_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_MinFinalCltvExpiry_1set_1a(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKMinFinalCltvExpiry this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
+       this_ptr_conv.inner = untag_ptr(this_ptr);
+       this_ptr_conv.is_owned = ptr_is_owned(this_ptr);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_ptr_conv);
+       this_ptr_conv.is_owned = false;
        MinFinalCltvExpiry_set_a(&this_ptr_conv, val);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MinFinalCltvExpiry_1new(JNIEnv *env, jclass clz, int64_t a_arg) {
        LDKMinFinalCltvExpiry ret_var = MinFinalCltvExpiry_new(a_arg);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
-static inline uintptr_t MinFinalCltvExpiry_clone_ptr(LDKMinFinalCltvExpiry *NONNULL_PTR arg) {
+static inline uint64_t MinFinalCltvExpiry_clone_ptr(LDKMinFinalCltvExpiry *NONNULL_PTR arg) {
        LDKMinFinalCltvExpiry ret_var = MinFinalCltvExpiry_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MinFinalCltvExpiry_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKMinFinalCltvExpiry arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = MinFinalCltvExpiry_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MinFinalCltvExpiry_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKMinFinalCltvExpiry orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKMinFinalCltvExpiry ret_var = MinFinalCltvExpiry_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MinFinalCltvExpiry_1hash(JNIEnv *env, jclass clz, int64_t o) {
        LDKMinFinalCltvExpiry o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = false;
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
+       o_conv.is_owned = false;
        int64_t ret_conv = MinFinalCltvExpiry_hash(&o_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_MinFinalCltvExpiry_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKMinFinalCltvExpiry a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKMinFinalCltvExpiry b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = MinFinalCltvExpiry_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Fallback_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKFallback this_ptr_conv = *(LDKFallback*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        Fallback_free(this_ptr_conv);
 }
 
-static inline uintptr_t Fallback_clone_ptr(LDKFallback *NONNULL_PTR arg) {
+static inline uint64_t Fallback_clone_ptr(LDKFallback *NONNULL_PTR arg) {
        LDKFallback *ret_copy = MALLOC(sizeof(LDKFallback), "LDKFallback");
        *ret_copy = Fallback_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Fallback_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKFallback* arg_conv = (LDKFallback*)arg;
+       LDKFallback* arg_conv = (LDKFallback*)untag_ptr(arg);
        int64_t ret_conv = Fallback_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Fallback_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKFallback* orig_conv = (LDKFallback*)orig;
+       LDKFallback* orig_conv = (LDKFallback*)untag_ptr(orig);
        LDKFallback *ret_copy = MALLOC(sizeof(LDKFallback), "LDKFallback");
        *ret_copy = Fallback_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -48375,7 +46440,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Fallback_1seg_1wit_1program
        (*env)->GetByteArrayRegion(env, program, 0, program_ref.datalen, program_ref.data);
        LDKFallback *ret_copy = MALLOC(sizeof(LDKFallback), "LDKFallback");
        *ret_copy = Fallback_seg_wit_program((LDKu5){ ._0 = version }, program_ref);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -48385,7 +46450,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Fallback_1pub_1key_1hash(JN
        (*env)->GetByteArrayRegion(env, a, 0, 20, a_ref.data);
        LDKFallback *ret_copy = MALLOC(sizeof(LDKFallback), "LDKFallback");
        *ret_copy = Fallback_pub_key_hash(a_ref);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -48395,183 +46460,169 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Fallback_1script_1hash(JNIE
        (*env)->GetByteArrayRegion(env, a, 0, 20, a_ref.data);
        LDKFallback *ret_copy = MALLOC(sizeof(LDKFallback), "LDKFallback");
        *ret_copy = Fallback_script_hash(a_ref);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Fallback_1hash(JNIEnv *env, jclass clz, int64_t o) {
-       LDKFallback* o_conv = (LDKFallback*)o;
+       LDKFallback* o_conv = (LDKFallback*)untag_ptr(o);
        int64_t ret_conv = Fallback_hash(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_Fallback_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
-       LDKFallback* a_conv = (LDKFallback*)a;
-       LDKFallback* b_conv = (LDKFallback*)b;
+       LDKFallback* a_conv = (LDKFallback*)untag_ptr(a);
+       LDKFallback* b_conv = (LDKFallback*)untag_ptr(b);
        jboolean ret_conv = Fallback_eq(a_conv, b_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InvoiceSignature_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKInvoiceSignature this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        InvoiceSignature_free(this_obj_conv);
 }
 
-static inline uintptr_t InvoiceSignature_clone_ptr(LDKInvoiceSignature *NONNULL_PTR arg) {
+static inline uint64_t InvoiceSignature_clone_ptr(LDKInvoiceSignature *NONNULL_PTR arg) {
        LDKInvoiceSignature ret_var = InvoiceSignature_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InvoiceSignature_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKInvoiceSignature arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = InvoiceSignature_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InvoiceSignature_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKInvoiceSignature orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKInvoiceSignature ret_var = InvoiceSignature_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_InvoiceSignature_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKInvoiceSignature a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKInvoiceSignature b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = InvoiceSignature_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PrivateRoute_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKPrivateRoute this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        PrivateRoute_free(this_obj_conv);
 }
 
-static inline uintptr_t PrivateRoute_clone_ptr(LDKPrivateRoute *NONNULL_PTR arg) {
+static inline uint64_t PrivateRoute_clone_ptr(LDKPrivateRoute *NONNULL_PTR arg) {
        LDKPrivateRoute ret_var = PrivateRoute_clone(arg);
-int64_t ret_ref = 0;
-CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
-CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-ret_ref = (uintptr_t)ret_var.inner;
-if (ret_var.is_owned) {
-       ret_ref |= 1;
-}
+       int64_t ret_ref = 0;
+       CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PrivateRoute_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
        LDKPrivateRoute arg_conv;
-       arg_conv.inner = (void*)(arg & (~1));
-       arg_conv.is_owned = false;
+       arg_conv.inner = untag_ptr(arg);
+       arg_conv.is_owned = ptr_is_owned(arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(arg_conv);
+       arg_conv.is_owned = false;
        int64_t ret_conv = PrivateRoute_clone_ptr(&arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PrivateRoute_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKPrivateRoute orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
+       orig_conv.inner = untag_ptr(orig);
+       orig_conv.is_owned = ptr_is_owned(orig);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(orig_conv);
+       orig_conv.is_owned = false;
        LDKPrivateRoute ret_var = PrivateRoute_clone(&orig_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PrivateRoute_1hash(JNIEnv *env, jclass clz, int64_t o) {
        LDKPrivateRoute o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = false;
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
+       o_conv.is_owned = false;
        int64_t ret_conv = PrivateRoute_hash(&o_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_PrivateRoute_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
        LDKPrivateRoute a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = false;
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
+       a_conv.is_owned = false;
        LDKPrivateRoute b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = false;
+       b_conv.inner = untag_ptr(b);
+       b_conv.is_owned = ptr_is_owned(b);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(b_conv);
+       b_conv.is_owned = false;
        jboolean ret_conv = PrivateRoute_eq(&a_conv, &b_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SignedRawInvoice_1into_1parts(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKSignedRawInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = (this_arg & 1) || (this_arg == 0);
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        this_arg_conv = SignedRawInvoice_clone(&this_arg_conv);
        LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ* ret_conv = MALLOC(sizeof(LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ), "LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ");
        *ret_conv = SignedRawInvoice_into_parts(this_arg_conv);
-       return ((int64_t)ret_conv);
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SignedRawInvoice_1raw_1invoice(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKSignedRawInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKRawInvoice ret_var = SignedRawInvoice_raw_invoice(&this_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_SignedRawInvoice_1hash(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKSignedRawInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *SignedRawInvoice_hash(&this_arg_conv));
        return ret_arr;
@@ -48579,45 +46630,44 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_SignedRawInvoice_1hash(
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SignedRawInvoice_1signature(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKSignedRawInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKInvoiceSignature ret_var = SignedRawInvoice_signature(&this_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SignedRawInvoice_1recover_1payee_1pub_1key(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKSignedRawInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCResult_PayeePubKeyErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PayeePubKeyErrorZ), "LDKCResult_PayeePubKeyErrorZ");
        *ret_conv = SignedRawInvoice_recover_payee_pub_key(&this_arg_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_SignedRawInvoice_1check_1signature(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKSignedRawInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = SignedRawInvoice_check_signature(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_RawInvoice_1hash(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKRawInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, RawInvoice_hash(&this_arg_conv).data);
        return ret_arr;
@@ -48625,123 +46675,88 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_RawInvoice_1hash(JNIEnv
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RawInvoice_1payment_1hash(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKRawInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKSha256 ret_var = RawInvoice_payment_hash(&this_arg_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RawInvoice_1description(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKRawInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKDescription ret_var = RawInvoice_description(&this_arg_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RawInvoice_1payee_1pub_1key(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKRawInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKPayeePubKey ret_var = RawInvoice_payee_pub_key(&this_arg_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RawInvoice_1description_1hash(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKRawInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKSha256 ret_var = RawInvoice_description_hash(&this_arg_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RawInvoice_1expiry_1time(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKRawInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKExpiryTime ret_var = RawInvoice_expiry_time(&this_arg_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RawInvoice_1min_1final_1cltv_1expiry(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKRawInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKMinFinalCltvExpiry ret_var = RawInvoice_min_final_cltv_expiry(&this_arg_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_RawInvoice_1payment_1secret(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKRawInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, RawInvoice_payment_secret(&this_arg_conv).data);
        return ret_arr;
@@ -48749,28 +46764,23 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_RawInvoice_1payment_1se
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RawInvoice_1features(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKRawInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKInvoiceFeatures ret_var = RawInvoice_features(&this_arg_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_RawInvoice_1private_1routes(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKRawInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCVec_PrivateRouteZ ret_var = RawInvoice_private_routes(&this_arg_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -48778,13 +46788,8 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_RawInvoice_1private_1r
        for (size_t o = 0; o < ret_var.datalen; o++) {
                LDKPrivateRoute ret_conv_14_var = ret_var.data[o];
                int64_t ret_conv_14_ref = 0;
-               CHECK((((uintptr_t)ret_conv_14_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_conv_14_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_14_var);
-               ret_conv_14_ref = (uintptr_t)ret_conv_14_var.inner;
-               if (ret_conv_14_var.is_owned) {
-                       ret_conv_14_ref |= 1;
-               }
+               ret_conv_14_ref = tag_ptr(ret_conv_14_var.inner, ret_conv_14_var.is_owned);
                ret_arr_ptr[o] = ret_conv_14_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
@@ -48794,20 +46799,22 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_RawInvoice_1private_1r
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RawInvoice_1amount_1pico_1btc(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKRawInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = RawInvoice_amount_pico_btc(&this_arg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_RawInvoice_1currency(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKRawInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jclass ret_conv = LDKCurrency_to_java(env, RawInvoice_currency(&this_arg_conv));
        return ret_conv;
 }
@@ -48815,110 +46822,112 @@ JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_RawInvoice_1currency(JNIEnv
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PositiveTimestamp_1from_1unix_1timestamp(JNIEnv *env, jclass clz, int64_t unix_seconds) {
        LDKCResult_PositiveTimestampCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PositiveTimestampCreationErrorZ), "LDKCResult_PositiveTimestampCreationErrorZ");
        *ret_conv = PositiveTimestamp_from_unix_timestamp(unix_seconds);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PositiveTimestamp_1from_1system_1time(JNIEnv *env, jclass clz, int64_t time) {
        LDKCResult_PositiveTimestampCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PositiveTimestampCreationErrorZ), "LDKCResult_PositiveTimestampCreationErrorZ");
        *ret_conv = PositiveTimestamp_from_system_time(time);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PositiveTimestamp_1from_1duration_1since_1epoch(JNIEnv *env, jclass clz, int64_t duration) {
        LDKCResult_PositiveTimestampCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PositiveTimestampCreationErrorZ), "LDKCResult_PositiveTimestampCreationErrorZ");
        *ret_conv = PositiveTimestamp_from_duration_since_epoch(duration);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PositiveTimestamp_1as_1unix_1timestamp(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKPositiveTimestamp this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int64_t ret_conv = PositiveTimestamp_as_unix_timestamp(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PositiveTimestamp_1as_1duration_1since_1epoch(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKPositiveTimestamp this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int64_t ret_conv = PositiveTimestamp_as_duration_since_epoch(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PositiveTimestamp_1as_1time(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKPositiveTimestamp this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int64_t ret_conv = PositiveTimestamp_as_time(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Invoice_1into_1signed_1raw(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = (this_arg & 1) || (this_arg == 0);
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        this_arg_conv = Invoice_clone(&this_arg_conv);
        LDKSignedRawInvoice ret_var = Invoice_into_signed_raw(this_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Invoice_1check_1signature(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCResult_NoneSemanticErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneSemanticErrorZ), "LDKCResult_NoneSemanticErrorZ");
        *ret_conv = Invoice_check_signature(&this_arg_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Invoice_1from_1signed(JNIEnv *env, jclass clz, int64_t signed_invoice) {
        LDKSignedRawInvoice signed_invoice_conv;
-       signed_invoice_conv.inner = (void*)(signed_invoice & (~1));
-       signed_invoice_conv.is_owned = (signed_invoice & 1) || (signed_invoice == 0);
+       signed_invoice_conv.inner = untag_ptr(signed_invoice);
+       signed_invoice_conv.is_owned = ptr_is_owned(signed_invoice);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(signed_invoice_conv);
        signed_invoice_conv = SignedRawInvoice_clone(&signed_invoice_conv);
        LDKCResult_InvoiceSemanticErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceSemanticErrorZ), "LDKCResult_InvoiceSemanticErrorZ");
        *ret_conv = Invoice_from_signed(signed_invoice_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Invoice_1timestamp(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int64_t ret_conv = Invoice_timestamp(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Invoice_1duration_1since_1epoch(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int64_t ret_conv = Invoice_duration_since_epoch(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Invoice_1payment_1hash(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *Invoice_payment_hash(&this_arg_conv));
        return ret_arr;
@@ -48926,9 +46935,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Invoice_1payment_1hash(
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Invoice_1payee_1pub_1key(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, Invoice_payee_pub_key(&this_arg_conv).compressed_form);
        return ret_arr;
@@ -48936,9 +46946,10 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Invoice_1payee_1pub_1ke
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Invoice_1payment_1secret(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, *Invoice_payment_secret(&this_arg_conv));
        return ret_arr;
@@ -48946,28 +46957,23 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Invoice_1payment_1secre
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Invoice_1features(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKInvoiceFeatures ret_var = Invoice_features(&this_arg_conv);
        int64_t ret_ref = 0;
-       if ((uintptr_t)ret_var.inner > 4096) {
-               CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-               ret_ref = (uintptr_t)ret_var.inner;
-               if (ret_var.is_owned) {
-                       ret_ref |= 1;
-               }
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Invoice_1recover_1payee_1pub_1key(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, Invoice_recover_payee_pub_key(&this_arg_conv).compressed_form);
        return ret_arr;
@@ -48975,45 +46981,50 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Invoice_1recover_1payee
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Invoice_1expiry_1time(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int64_t ret_conv = Invoice_expiry_time(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_Invoice_1is_1expired(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = Invoice_is_expired(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_Invoice_1would_1expire(JNIEnv *env, jclass clz, int64_t this_arg, int64_t at_time) {
        LDKInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = Invoice_would_expire(&this_arg_conv, at_time);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Invoice_1min_1final_1cltv_1expiry(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int64_t ret_conv = Invoice_min_final_cltv_expiry(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_Invoice_1private_1routes(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCVec_PrivateRouteZ ret_var = Invoice_private_routes(&this_arg_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -49021,13 +47032,8 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_Invoice_1private_1rout
        for (size_t o = 0; o < ret_var.datalen; o++) {
                LDKPrivateRoute ret_conv_14_var = ret_var.data[o];
                int64_t ret_conv_14_ref = 0;
-               CHECK((((uintptr_t)ret_conv_14_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_conv_14_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_14_var);
-               ret_conv_14_ref = (uintptr_t)ret_conv_14_var.inner;
-               if (ret_conv_14_var.is_owned) {
-                       ret_conv_14_ref |= 1;
-               }
+               ret_conv_14_ref = tag_ptr(ret_conv_14_var.inner, ret_conv_14_var.is_owned);
                ret_arr_ptr[o] = ret_conv_14_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
@@ -49037,9 +47043,10 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_Invoice_1private_1rout
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_Invoice_1route_1hints(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCVec_RouteHintZ ret_var = Invoice_route_hints(&this_arg_conv);
        int64_tArray ret_arr = NULL;
        ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -49047,13 +47054,8 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_Invoice_1route_1hints(
        for (size_t l = 0; l < ret_var.datalen; l++) {
                LDKRouteHint ret_conv_11_var = ret_var.data[l];
                int64_t ret_conv_11_ref = 0;
-               CHECK((((uintptr_t)ret_conv_11_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-               CHECK((((uintptr_t)&ret_conv_11_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
                CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_conv_11_var);
-               ret_conv_11_ref = (uintptr_t)ret_conv_11_var.inner;
-               if (ret_conv_11_var.is_owned) {
-                       ret_conv_11_ref |= 1;
-               }
+               ret_conv_11_ref = tag_ptr(ret_conv_11_var.inner, ret_conv_11_var.is_owned);
                ret_arr_ptr[l] = ret_conv_11_ref;
        }
        (*env)->ReleasePrimitiveArrayCritical(env, ret_arr, ret_arr_ptr, 0);
@@ -49063,21 +47065,23 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_Invoice_1route_1hints(
 
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_Invoice_1currency(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jclass ret_conv = LDKCurrency_to_java(env, Invoice_currency(&this_arg_conv));
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Invoice_1amount_1milli_1satoshis(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoice this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
        *ret_copy = Invoice_amount_milli_satoshis(&this_arg_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -49085,13 +47089,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Description_1new(JNIEnv *en
        LDKStr description_conv = java_to_owned_str(env, description);
        LDKCResult_DescriptionCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_DescriptionCreationErrorZ), "LDKCResult_DescriptionCreationErrorZ");
        *ret_conv = Description_new(description_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_Description_1into_1inner(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKDescription this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = (this_arg & 1) || (this_arg == 0);
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        this_arg_conv = Description_clone(&this_arg_conv);
        LDKStr ret_str = Description_into_inner(this_arg_conv);
@@ -49103,78 +47107,65 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_Description_1into_1inner(JN
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ExpiryTime_1from_1seconds(JNIEnv *env, jclass clz, int64_t seconds) {
        LDKExpiryTime ret_var = ExpiryTime_from_seconds(seconds);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ExpiryTime_1from_1duration(JNIEnv *env, jclass clz, int64_t duration) {
        LDKExpiryTime ret_var = ExpiryTime_from_duration(duration);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ExpiryTime_1as_1seconds(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKExpiryTime this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int64_t ret_conv = ExpiryTime_as_seconds(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ExpiryTime_1as_1duration(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKExpiryTime this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        int64_t ret_conv = ExpiryTime_as_duration(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PrivateRoute_1new(JNIEnv *env, jclass clz, int64_t hops) {
        LDKRouteHint hops_conv;
-       hops_conv.inner = (void*)(hops & (~1));
-       hops_conv.is_owned = (hops & 1) || (hops == 0);
+       hops_conv.inner = untag_ptr(hops);
+       hops_conv.is_owned = ptr_is_owned(hops);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(hops_conv);
        hops_conv = RouteHint_clone(&hops_conv);
        LDKCResult_PrivateRouteCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PrivateRouteCreationErrorZ), "LDKCResult_PrivateRouteCreationErrorZ");
        *ret_conv = PrivateRoute_new(hops_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PrivateRoute_1into_1inner(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKPrivateRoute this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = (this_arg & 1) || (this_arg == 0);
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
        this_arg_conv = PrivateRoute_clone(&this_arg_conv);
        LDKRouteHint ret_var = PrivateRoute_into_inner(this_arg_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_CreationError_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKCreationError* orig_conv = (LDKCreationError*)(orig & ~1);
+       LDKCreationError* orig_conv = (LDKCreationError*)untag_ptr(orig);
        jclass ret_conv = LDKCreationError_to_java(env, CreationError_clone(orig_conv));
        return ret_conv;
 }
@@ -49205,14 +47196,14 @@ JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_CreationError_1missing_1rout
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_CreationError_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
-       LDKCreationError* a_conv = (LDKCreationError*)(a & ~1);
-       LDKCreationError* b_conv = (LDKCreationError*)(b & ~1);
+       LDKCreationError* a_conv = (LDKCreationError*)untag_ptr(a);
+       LDKCreationError* b_conv = (LDKCreationError*)untag_ptr(b);
        jboolean ret_conv = CreationError_eq(a_conv, b_conv);
        return ret_conv;
 }
 
 JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_CreationError_1to_1str(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCreationError* o_conv = (LDKCreationError*)(o & ~1);
+       LDKCreationError* o_conv = (LDKCreationError*)untag_ptr(o);
        LDKStr ret_str = CreationError_to_str(o_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
        Str_free(ret_str);
@@ -49220,7 +47211,7 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_CreationError_1to_1str(JNIE
 }
 
 JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_SemanticError_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKSemanticError* orig_conv = (LDKSemanticError*)(orig & ~1);
+       LDKSemanticError* orig_conv = (LDKSemanticError*)untag_ptr(orig);
        jclass ret_conv = LDKSemanticError_to_java(env, SemanticError_clone(orig_conv));
        return ret_conv;
 }
@@ -49276,14 +47267,14 @@ JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_SemanticError_1imprecise_1am
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_SemanticError_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
-       LDKSemanticError* a_conv = (LDKSemanticError*)(a & ~1);
-       LDKSemanticError* b_conv = (LDKSemanticError*)(b & ~1);
+       LDKSemanticError* a_conv = (LDKSemanticError*)untag_ptr(a);
+       LDKSemanticError* b_conv = (LDKSemanticError*)untag_ptr(b);
        jboolean ret_conv = SemanticError_eq(a_conv, b_conv);
        return ret_conv;
 }
 
 JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_SemanticError_1to_1str(JNIEnv *env, jclass clz, int64_t o) {
-       LDKSemanticError* o_conv = (LDKSemanticError*)(o & ~1);
+       LDKSemanticError* o_conv = (LDKSemanticError*)untag_ptr(o);
        LDKStr ret_str = SemanticError_to_str(o_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
        Str_free(ret_str);
@@ -49291,38 +47282,38 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_SemanticError_1to_1str(JNIE
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_SignOrCreationError_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKSignOrCreationError this_ptr_conv = *(LDKSignOrCreationError*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        SignOrCreationError_free(this_ptr_conv);
 }
 
-static inline uintptr_t SignOrCreationError_clone_ptr(LDKSignOrCreationError *NONNULL_PTR arg) {
+static inline uint64_t SignOrCreationError_clone_ptr(LDKSignOrCreationError *NONNULL_PTR arg) {
        LDKSignOrCreationError *ret_copy = MALLOC(sizeof(LDKSignOrCreationError), "LDKSignOrCreationError");
        *ret_copy = SignOrCreationError_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SignOrCreationError_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKSignOrCreationError* arg_conv = (LDKSignOrCreationError*)arg;
+       LDKSignOrCreationError* arg_conv = (LDKSignOrCreationError*)untag_ptr(arg);
        int64_t ret_conv = SignOrCreationError_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SignOrCreationError_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKSignOrCreationError* orig_conv = (LDKSignOrCreationError*)orig;
+       LDKSignOrCreationError* orig_conv = (LDKSignOrCreationError*)untag_ptr(orig);
        LDKSignOrCreationError *ret_copy = MALLOC(sizeof(LDKSignOrCreationError), "LDKSignOrCreationError");
        *ret_copy = SignOrCreationError_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SignOrCreationError_1sign_1error(JNIEnv *env, jclass clz) {
        LDKSignOrCreationError *ret_copy = MALLOC(sizeof(LDKSignOrCreationError), "LDKSignOrCreationError");
        *ret_copy = SignOrCreationError_sign_error();
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -49330,19 +47321,19 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SignOrCreationError_1creati
        LDKCreationError a_conv = LDKCreationError_from_java(env, a);
        LDKSignOrCreationError *ret_copy = MALLOC(sizeof(LDKSignOrCreationError), "LDKSignOrCreationError");
        *ret_copy = SignOrCreationError_creation_error(a_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_SignOrCreationError_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
-       LDKSignOrCreationError* a_conv = (LDKSignOrCreationError*)a;
-       LDKSignOrCreationError* b_conv = (LDKSignOrCreationError*)b;
+       LDKSignOrCreationError* a_conv = (LDKSignOrCreationError*)untag_ptr(a);
+       LDKSignOrCreationError* b_conv = (LDKSignOrCreationError*)untag_ptr(b);
        jboolean ret_conv = SignOrCreationError_eq(a_conv, b_conv);
        return ret_conv;
 }
 
 JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_SignOrCreationError_1to_1str(JNIEnv *env, jclass clz, int64_t o) {
-       LDKSignOrCreationError* o_conv = (LDKSignOrCreationError*)o;
+       LDKSignOrCreationError* o_conv = (LDKSignOrCreationError*)untag_ptr(o);
        LDKStr ret_str = SignOrCreationError_to_str(o_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
        Str_free(ret_str);
@@ -49351,112 +47342,112 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_SignOrCreationError_1to_1st
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InvoicePayer_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKInvoicePayer this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        InvoicePayer_free(this_obj_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Payer_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKPayer this_ptr_conv = *(LDKPayer*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        Payer_free(this_ptr_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Router_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKRouter this_ptr_conv = *(LDKRouter*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        Router_free(this_ptr_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Retry_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKRetry this_ptr_conv = *(LDKRetry*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        Retry_free(this_ptr_conv);
 }
 
-static inline uintptr_t Retry_clone_ptr(LDKRetry *NONNULL_PTR arg) {
+static inline uint64_t Retry_clone_ptr(LDKRetry *NONNULL_PTR arg) {
        LDKRetry *ret_copy = MALLOC(sizeof(LDKRetry), "LDKRetry");
        *ret_copy = Retry_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Retry_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKRetry* arg_conv = (LDKRetry*)arg;
+       LDKRetry* arg_conv = (LDKRetry*)untag_ptr(arg);
        int64_t ret_conv = Retry_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Retry_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKRetry* orig_conv = (LDKRetry*)orig;
+       LDKRetry* orig_conv = (LDKRetry*)untag_ptr(orig);
        LDKRetry *ret_copy = MALLOC(sizeof(LDKRetry), "LDKRetry");
        *ret_copy = Retry_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Retry_1attempts(JNIEnv *env, jclass clz, int64_t a) {
        LDKRetry *ret_copy = MALLOC(sizeof(LDKRetry), "LDKRetry");
        *ret_copy = Retry_attempts(a);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Retry_1timeout(JNIEnv *env, jclass clz, int64_t a) {
        LDKRetry *ret_copy = MALLOC(sizeof(LDKRetry), "LDKRetry");
        *ret_copy = Retry_timeout(a);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_Retry_1eq(JNIEnv *env, jclass clz, int64_t a, int64_t b) {
-       LDKRetry* a_conv = (LDKRetry*)a;
-       LDKRetry* b_conv = (LDKRetry*)b;
+       LDKRetry* a_conv = (LDKRetry*)untag_ptr(a);
+       LDKRetry* b_conv = (LDKRetry*)untag_ptr(b);
        jboolean ret_conv = Retry_eq(a_conv, b_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Retry_1hash(JNIEnv *env, jclass clz, int64_t o) {
-       LDKRetry* o_conv = (LDKRetry*)o;
+       LDKRetry* o_conv = (LDKRetry*)untag_ptr(o);
        int64_t ret_conv = Retry_hash(o_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PaymentError_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKPaymentError this_ptr_conv = *(LDKPaymentError*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        PaymentError_free(this_ptr_conv);
 }
 
-static inline uintptr_t PaymentError_clone_ptr(LDKPaymentError *NONNULL_PTR arg) {
+static inline uint64_t PaymentError_clone_ptr(LDKPaymentError *NONNULL_PTR arg) {
        LDKPaymentError *ret_copy = MALLOC(sizeof(LDKPaymentError), "LDKPaymentError");
        *ret_copy = PaymentError_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentError_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKPaymentError* arg_conv = (LDKPaymentError*)arg;
+       LDKPaymentError* arg_conv = (LDKPaymentError*)untag_ptr(arg);
        int64_t ret_conv = PaymentError_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentError_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKPaymentError* orig_conv = (LDKPaymentError*)orig;
+       LDKPaymentError* orig_conv = (LDKPaymentError*)untag_ptr(orig);
        LDKPaymentError *ret_copy = MALLOC(sizeof(LDKPaymentError), "LDKPaymentError");
        *ret_copy = PaymentError_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
@@ -49464,42 +47455,42 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentError_1invoice(JNIEn
        LDKStr a_conv = java_to_owned_str(env, a);
        LDKPaymentError *ret_copy = MALLOC(sizeof(LDKPaymentError), "LDKPaymentError");
        *ret_copy = PaymentError_invoice(a_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentError_1routing(JNIEnv *env, jclass clz, int64_t a) {
        LDKLightningError a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = (a & 1) || (a == 0);
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
        a_conv = LightningError_clone(&a_conv);
        LDKPaymentError *ret_copy = MALLOC(sizeof(LDKPaymentError), "LDKPaymentError");
        *ret_copy = PaymentError_routing(a_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentError_1sending(JNIEnv *env, jclass clz, int64_t a) {
-       void* a_ptr = (void*)(((uintptr_t)a) & ~1);
+       void* a_ptr = untag_ptr(a);
        CHECK_ACCESS(a_ptr);
        LDKPaymentSendFailure a_conv = *(LDKPaymentSendFailure*)(a_ptr);
-       a_conv = PaymentSendFailure_clone((LDKPaymentSendFailure*)(((uintptr_t)a) & ~1));
+       a_conv = PaymentSendFailure_clone((LDKPaymentSendFailure*)untag_ptr(a));
        LDKPaymentError *ret_copy = MALLOC(sizeof(LDKPaymentError), "LDKPaymentError");
        *ret_copy = PaymentError_sending(a_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InvoicePayer_1new(JNIEnv *env, jclass clz, int64_t payer, int64_t router, int64_t scorer, int64_t logger, int64_t event_handler, int64_t retry) {
-       void* payer_ptr = (void*)(((uintptr_t)payer) & ~1);
+       void* payer_ptr = untag_ptr(payer);
        CHECK_ACCESS(payer_ptr);
        LDKPayer payer_conv = *(LDKPayer*)(payer_ptr);
        if (payer_conv.free == LDKPayer_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKPayer_JCalls_cloned(&payer_conv);
        }
-       void* router_ptr = (void*)(((uintptr_t)router) & ~1);
+       void* router_ptr = untag_ptr(router);
        CHECK_ACCESS(router_ptr);
        LDKRouter router_conv = *(LDKRouter*)(router_ptr);
        if (router_conv.free == LDKRouter_JCalls_free) {
@@ -49507,72 +47498,73 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InvoicePayer_1new(JNIEnv *e
                LDKRouter_JCalls_cloned(&router_conv);
        }
        LDKMultiThreadedLockableScore scorer_conv;
-       scorer_conv.inner = (void*)(scorer & (~1));
-       scorer_conv.is_owned = false;
+       scorer_conv.inner = untag_ptr(scorer);
+       scorer_conv.is_owned = ptr_is_owned(scorer);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(scorer_conv);
-       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
+       scorer_conv.is_owned = false;
+       void* logger_ptr = untag_ptr(logger);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
        if (logger_conv.free == LDKLogger_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKLogger_JCalls_cloned(&logger_conv);
        }
-       void* event_handler_ptr = (void*)(((uintptr_t)event_handler) & ~1);
+       void* event_handler_ptr = untag_ptr(event_handler);
        CHECK_ACCESS(event_handler_ptr);
        LDKEventHandler event_handler_conv = *(LDKEventHandler*)(event_handler_ptr);
        if (event_handler_conv.free == LDKEventHandler_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKEventHandler_JCalls_cloned(&event_handler_conv);
        }
-       void* retry_ptr = (void*)(((uintptr_t)retry) & ~1);
+       void* retry_ptr = untag_ptr(retry);
        CHECK_ACCESS(retry_ptr);
        LDKRetry retry_conv = *(LDKRetry*)(retry_ptr);
-       retry_conv = Retry_clone((LDKRetry*)(((uintptr_t)retry) & ~1));
+       retry_conv = Retry_clone((LDKRetry*)untag_ptr(retry));
        LDKInvoicePayer ret_var = InvoicePayer_new(payer_conv, router_conv, &scorer_conv, logger_conv, event_handler_conv, retry_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InvoicePayer_1pay_1invoice(JNIEnv *env, jclass clz, int64_t this_arg, int64_t invoice) {
        LDKInvoicePayer this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKInvoice invoice_conv;
-       invoice_conv.inner = (void*)(invoice & (~1));
-       invoice_conv.is_owned = false;
+       invoice_conv.inner = untag_ptr(invoice);
+       invoice_conv.is_owned = ptr_is_owned(invoice);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(invoice_conv);
+       invoice_conv.is_owned = false;
        LDKCResult_PaymentIdPaymentErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentIdPaymentErrorZ), "LDKCResult_PaymentIdPaymentErrorZ");
        *ret_conv = InvoicePayer_pay_invoice(&this_arg_conv, &invoice_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InvoicePayer_1pay_1zero_1value_1invoice(JNIEnv *env, jclass clz, int64_t this_arg, int64_t invoice, int64_t amount_msats) {
        LDKInvoicePayer this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKInvoice invoice_conv;
-       invoice_conv.inner = (void*)(invoice & (~1));
-       invoice_conv.is_owned = false;
+       invoice_conv.inner = untag_ptr(invoice);
+       invoice_conv.is_owned = ptr_is_owned(invoice);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(invoice_conv);
+       invoice_conv.is_owned = false;
        LDKCResult_PaymentIdPaymentErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentIdPaymentErrorZ), "LDKCResult_PaymentIdPaymentErrorZ");
        *ret_conv = InvoicePayer_pay_zero_value_invoice(&this_arg_conv, &invoice_conv, amount_msats);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InvoicePayer_1pay_1pubkey(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray pubkey, int8_tArray payment_preimage, int64_t amount_msats, int32_t final_cltv_expiry_delta) {
        LDKInvoicePayer this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKPublicKey pubkey_ref;
        CHECK((*env)->GetArrayLength(env, pubkey) == 33);
        (*env)->GetByteArrayRegion(env, pubkey, 0, 33, pubkey_ref.compressed_form);
@@ -49581,14 +47573,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InvoicePayer_1pay_1pubkey(J
        (*env)->GetByteArrayRegion(env, payment_preimage, 0, 32, payment_preimage_ref.data);
        LDKCResult_PaymentIdPaymentErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentIdPaymentErrorZ), "LDKCResult_PaymentIdPaymentErrorZ");
        *ret_conv = InvoicePayer_pay_pubkey(&this_arg_conv, pubkey_ref, payment_preimage_ref, amount_msats, final_cltv_expiry_delta);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InvoicePayer_1remove_1cached_1payment(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray payment_hash) {
        LDKInvoicePayer this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        unsigned char payment_hash_arr[32];
        CHECK((*env)->GetArrayLength(env, payment_hash) == 32);
        (*env)->GetByteArrayRegion(env, payment_hash, 0, 32, payment_hash_arr);
@@ -49598,19 +47591,20 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_InvoicePayer_1remove_1cached_1
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InvoicePayer_1as_1EventHandler(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKInvoicePayer this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKEventHandler* ret_ret = MALLOC(sizeof(LDKEventHandler), "LDKEventHandler");
        *ret_ret = InvoicePayer_as_EventHandler(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_create_1phantom_1invoice(JNIEnv *env, jclass clz, int64_t amt_msat, int8_tArray payment_hash, jstring description, int32_t invoice_expiry_delta_secs, int64_tArray phantom_route_hints, int64_t keys_manager, jclass network) {
-       void* amt_msat_ptr = (void*)(((uintptr_t)amt_msat) & ~1);
+       void* amt_msat_ptr = untag_ptr(amt_msat);
        CHECK_ACCESS(amt_msat_ptr);
        LDKCOption_u64Z amt_msat_conv = *(LDKCOption_u64Z*)(amt_msat_ptr);
-       amt_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)amt_msat) & ~1));
+       amt_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(amt_msat));
        LDKThirtyTwoBytes payment_hash_ref;
        CHECK((*env)->GetArrayLength(env, payment_hash) == 32);
        (*env)->GetByteArrayRegion(env, payment_hash, 0, 32, payment_hash_ref.data);
@@ -49625,14 +47619,14 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_create_1phantom_1invoice(JN
        for (size_t t = 0; t < phantom_route_hints_constr.datalen; t++) {
                int64_t phantom_route_hints_conv_19 = phantom_route_hints_vals[t];
                LDKPhantomRouteHints phantom_route_hints_conv_19_conv;
-               phantom_route_hints_conv_19_conv.inner = (void*)(phantom_route_hints_conv_19 & (~1));
-               phantom_route_hints_conv_19_conv.is_owned = (phantom_route_hints_conv_19 & 1) || (phantom_route_hints_conv_19 == 0);
+               phantom_route_hints_conv_19_conv.inner = untag_ptr(phantom_route_hints_conv_19);
+               phantom_route_hints_conv_19_conv.is_owned = ptr_is_owned(phantom_route_hints_conv_19);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(phantom_route_hints_conv_19_conv);
                phantom_route_hints_conv_19_conv = PhantomRouteHints_clone(&phantom_route_hints_conv_19_conv);
                phantom_route_hints_constr.data[t] = phantom_route_hints_conv_19_conv;
        }
        (*env)->ReleaseLongArrayElements(env, phantom_route_hints, phantom_route_hints_vals, 0);
-       void* keys_manager_ptr = (void*)(((uintptr_t)keys_manager) & ~1);
+       void* keys_manager_ptr = untag_ptr(keys_manager);
        CHECK_ACCESS(keys_manager_ptr);
        LDKKeysInterface keys_manager_conv = *(LDKKeysInterface*)(keys_manager_ptr);
        if (keys_manager_conv.free == LDKKeysInterface_JCalls_free) {
@@ -49642,20 +47636,20 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_create_1phantom_1invoice(JN
        LDKCurrency network_conv = LDKCurrency_from_java(env, network);
        LDKCResult_InvoiceSignOrCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceSignOrCreationErrorZ), "LDKCResult_InvoiceSignOrCreationErrorZ");
        *ret_conv = create_phantom_invoice(amt_msat_conv, payment_hash_ref, description_conv, invoice_expiry_delta_secs, phantom_route_hints_constr, keys_manager_conv, network_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_create_1phantom_1invoice_1with_1description_1hash(JNIEnv *env, jclass clz, int64_t amt_msat, int8_tArray payment_hash, int32_t invoice_expiry_delta_secs, int64_t description_hash, int64_tArray phantom_route_hints, int64_t keys_manager, jclass network) {
-       void* amt_msat_ptr = (void*)(((uintptr_t)amt_msat) & ~1);
+       void* amt_msat_ptr = untag_ptr(amt_msat);
        CHECK_ACCESS(amt_msat_ptr);
        LDKCOption_u64Z amt_msat_conv = *(LDKCOption_u64Z*)(amt_msat_ptr);
-       amt_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)amt_msat) & ~1));
+       amt_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(amt_msat));
        LDKThirtyTwoBytes payment_hash_ref;
        CHECK((*env)->GetArrayLength(env, payment_hash) == 32);
        (*env)->GetByteArrayRegion(env, payment_hash, 0, 32, payment_hash_ref.data);
        LDKSha256 description_hash_conv;
-       description_hash_conv.inner = (void*)(description_hash & (~1));
-       description_hash_conv.is_owned = (description_hash & 1) || (description_hash == 0);
+       description_hash_conv.inner = untag_ptr(description_hash);
+       description_hash_conv.is_owned = ptr_is_owned(description_hash);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(description_hash_conv);
        description_hash_conv = Sha256_clone(&description_hash_conv);
        LDKCVec_PhantomRouteHintsZ phantom_route_hints_constr;
@@ -49668,14 +47662,14 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_create_1phantom_1invoice_1w
        for (size_t t = 0; t < phantom_route_hints_constr.datalen; t++) {
                int64_t phantom_route_hints_conv_19 = phantom_route_hints_vals[t];
                LDKPhantomRouteHints phantom_route_hints_conv_19_conv;
-               phantom_route_hints_conv_19_conv.inner = (void*)(phantom_route_hints_conv_19 & (~1));
-               phantom_route_hints_conv_19_conv.is_owned = (phantom_route_hints_conv_19 & 1) || (phantom_route_hints_conv_19 == 0);
+               phantom_route_hints_conv_19_conv.inner = untag_ptr(phantom_route_hints_conv_19);
+               phantom_route_hints_conv_19_conv.is_owned = ptr_is_owned(phantom_route_hints_conv_19);
                CHECK_INNER_FIELD_ACCESS_OR_NULL(phantom_route_hints_conv_19_conv);
                phantom_route_hints_conv_19_conv = PhantomRouteHints_clone(&phantom_route_hints_conv_19_conv);
                phantom_route_hints_constr.data[t] = phantom_route_hints_conv_19_conv;
        }
        (*env)->ReleaseLongArrayElements(env, phantom_route_hints, phantom_route_hints_vals, 0);
-       void* keys_manager_ptr = (void*)(((uintptr_t)keys_manager) & ~1);
+       void* keys_manager_ptr = untag_ptr(keys_manager);
        CHECK_ACCESS(keys_manager_ptr);
        LDKKeysInterface keys_manager_conv = *(LDKKeysInterface*)(keys_manager_ptr);
        if (keys_manager_conv.free == LDKKeysInterface_JCalls_free) {
@@ -49685,15 +47679,16 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_create_1phantom_1invoice_1w
        LDKCurrency network_conv = LDKCurrency_from_java(env, network);
        LDKCResult_InvoiceSignOrCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceSignOrCreationErrorZ), "LDKCResult_InvoiceSignOrCreationErrorZ");
        *ret_conv = create_phantom_invoice_with_description_hash(amt_msat_conv, payment_hash_ref, invoice_expiry_delta_secs, description_hash_conv, phantom_route_hints_constr, keys_manager_conv, network_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_create_1invoice_1from_1channelmanager(JNIEnv *env, jclass clz, int64_t channelmanager, int64_t keys_manager, jclass network, int64_t amt_msat, jstring description, int32_t invoice_expiry_delta_secs) {
        LDKChannelManager channelmanager_conv;
-       channelmanager_conv.inner = (void*)(channelmanager & (~1));
-       channelmanager_conv.is_owned = false;
+       channelmanager_conv.inner = untag_ptr(channelmanager);
+       channelmanager_conv.is_owned = ptr_is_owned(channelmanager);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channelmanager_conv);
-       void* keys_manager_ptr = (void*)(((uintptr_t)keys_manager) & ~1);
+       channelmanager_conv.is_owned = false;
+       void* keys_manager_ptr = untag_ptr(keys_manager);
        CHECK_ACCESS(keys_manager_ptr);
        LDKKeysInterface keys_manager_conv = *(LDKKeysInterface*)(keys_manager_ptr);
        if (keys_manager_conv.free == LDKKeysInterface_JCalls_free) {
@@ -49701,22 +47696,23 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_create_1invoice_1from_1chan
                LDKKeysInterface_JCalls_cloned(&keys_manager_conv);
        }
        LDKCurrency network_conv = LDKCurrency_from_java(env, network);
-       void* amt_msat_ptr = (void*)(((uintptr_t)amt_msat) & ~1);
+       void* amt_msat_ptr = untag_ptr(amt_msat);
        CHECK_ACCESS(amt_msat_ptr);
        LDKCOption_u64Z amt_msat_conv = *(LDKCOption_u64Z*)(amt_msat_ptr);
-       amt_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)amt_msat) & ~1));
+       amt_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(amt_msat));
        LDKStr description_conv = java_to_owned_str(env, description);
        LDKCResult_InvoiceSignOrCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceSignOrCreationErrorZ), "LDKCResult_InvoiceSignOrCreationErrorZ");
        *ret_conv = create_invoice_from_channelmanager(&channelmanager_conv, keys_manager_conv, network_conv, amt_msat_conv, description_conv, invoice_expiry_delta_secs);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_create_1invoice_1from_1channelmanager_1with_1description_1hash(JNIEnv *env, jclass clz, int64_t channelmanager, int64_t keys_manager, jclass network, int64_t amt_msat, int64_t description_hash, int32_t invoice_expiry_delta_secs) {
        LDKChannelManager channelmanager_conv;
-       channelmanager_conv.inner = (void*)(channelmanager & (~1));
-       channelmanager_conv.is_owned = false;
+       channelmanager_conv.inner = untag_ptr(channelmanager);
+       channelmanager_conv.is_owned = ptr_is_owned(channelmanager);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channelmanager_conv);
-       void* keys_manager_ptr = (void*)(((uintptr_t)keys_manager) & ~1);
+       channelmanager_conv.is_owned = false;
+       void* keys_manager_ptr = untag_ptr(keys_manager);
        CHECK_ACCESS(keys_manager_ptr);
        LDKKeysInterface keys_manager_conv = *(LDKKeysInterface*)(keys_manager_ptr);
        if (keys_manager_conv.free == LDKKeysInterface_JCalls_free) {
@@ -49724,26 +47720,27 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_create_1invoice_1from_1chan
                LDKKeysInterface_JCalls_cloned(&keys_manager_conv);
        }
        LDKCurrency network_conv = LDKCurrency_from_java(env, network);
-       void* amt_msat_ptr = (void*)(((uintptr_t)amt_msat) & ~1);
+       void* amt_msat_ptr = untag_ptr(amt_msat);
        CHECK_ACCESS(amt_msat_ptr);
        LDKCOption_u64Z amt_msat_conv = *(LDKCOption_u64Z*)(amt_msat_ptr);
-       amt_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)amt_msat) & ~1));
+       amt_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(amt_msat));
        LDKSha256 description_hash_conv;
-       description_hash_conv.inner = (void*)(description_hash & (~1));
-       description_hash_conv.is_owned = (description_hash & 1) || (description_hash == 0);
+       description_hash_conv.inner = untag_ptr(description_hash);
+       description_hash_conv.is_owned = ptr_is_owned(description_hash);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(description_hash_conv);
        description_hash_conv = Sha256_clone(&description_hash_conv);
        LDKCResult_InvoiceSignOrCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceSignOrCreationErrorZ), "LDKCResult_InvoiceSignOrCreationErrorZ");
        *ret_conv = create_invoice_from_channelmanager_with_description_hash(&channelmanager_conv, keys_manager_conv, network_conv, amt_msat_conv, description_hash_conv, invoice_expiry_delta_secs);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_create_1invoice_1from_1channelmanager_1with_1description_1hash_1and_1duration_1since_1epoch(JNIEnv *env, jclass clz, int64_t channelmanager, int64_t keys_manager, jclass network, int64_t amt_msat, int64_t description_hash, int64_t duration_since_epoch, int32_t invoice_expiry_delta_secs) {
        LDKChannelManager channelmanager_conv;
-       channelmanager_conv.inner = (void*)(channelmanager & (~1));
-       channelmanager_conv.is_owned = false;
+       channelmanager_conv.inner = untag_ptr(channelmanager);
+       channelmanager_conv.is_owned = ptr_is_owned(channelmanager);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channelmanager_conv);
-       void* keys_manager_ptr = (void*)(((uintptr_t)keys_manager) & ~1);
+       channelmanager_conv.is_owned = false;
+       void* keys_manager_ptr = untag_ptr(keys_manager);
        CHECK_ACCESS(keys_manager_ptr);
        LDKKeysInterface keys_manager_conv = *(LDKKeysInterface*)(keys_manager_ptr);
        if (keys_manager_conv.free == LDKKeysInterface_JCalls_free) {
@@ -49751,26 +47748,27 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_create_1invoice_1from_1chan
                LDKKeysInterface_JCalls_cloned(&keys_manager_conv);
        }
        LDKCurrency network_conv = LDKCurrency_from_java(env, network);
-       void* amt_msat_ptr = (void*)(((uintptr_t)amt_msat) & ~1);
+       void* amt_msat_ptr = untag_ptr(amt_msat);
        CHECK_ACCESS(amt_msat_ptr);
        LDKCOption_u64Z amt_msat_conv = *(LDKCOption_u64Z*)(amt_msat_ptr);
-       amt_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)amt_msat) & ~1));
+       amt_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(amt_msat));
        LDKSha256 description_hash_conv;
-       description_hash_conv.inner = (void*)(description_hash & (~1));
-       description_hash_conv.is_owned = (description_hash & 1) || (description_hash == 0);
+       description_hash_conv.inner = untag_ptr(description_hash);
+       description_hash_conv.is_owned = ptr_is_owned(description_hash);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(description_hash_conv);
        description_hash_conv = Sha256_clone(&description_hash_conv);
        LDKCResult_InvoiceSignOrCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceSignOrCreationErrorZ), "LDKCResult_InvoiceSignOrCreationErrorZ");
        *ret_conv = create_invoice_from_channelmanager_with_description_hash_and_duration_since_epoch(&channelmanager_conv, keys_manager_conv, network_conv, amt_msat_conv, description_hash_conv, duration_since_epoch, invoice_expiry_delta_secs);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_create_1invoice_1from_1channelmanager_1and_1duration_1since_1epoch(JNIEnv *env, jclass clz, int64_t channelmanager, int64_t keys_manager, jclass network, int64_t amt_msat, jstring description, int64_t duration_since_epoch, int32_t invoice_expiry_delta_secs) {
        LDKChannelManager channelmanager_conv;
-       channelmanager_conv.inner = (void*)(channelmanager & (~1));
-       channelmanager_conv.is_owned = false;
+       channelmanager_conv.inner = untag_ptr(channelmanager);
+       channelmanager_conv.is_owned = ptr_is_owned(channelmanager);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(channelmanager_conv);
-       void* keys_manager_ptr = (void*)(((uintptr_t)keys_manager) & ~1);
+       channelmanager_conv.is_owned = false;
+       void* keys_manager_ptr = untag_ptr(keys_manager);
        CHECK_ACCESS(keys_manager_ptr);
        LDKKeysInterface keys_manager_conv = *(LDKKeysInterface*)(keys_manager_ptr);
        if (keys_manager_conv.free == LDKKeysInterface_JCalls_free) {
@@ -49778,30 +47776,31 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_create_1invoice_1from_1chan
                LDKKeysInterface_JCalls_cloned(&keys_manager_conv);
        }
        LDKCurrency network_conv = LDKCurrency_from_java(env, network);
-       void* amt_msat_ptr = (void*)(((uintptr_t)amt_msat) & ~1);
+       void* amt_msat_ptr = untag_ptr(amt_msat);
        CHECK_ACCESS(amt_msat_ptr);
        LDKCOption_u64Z amt_msat_conv = *(LDKCOption_u64Z*)(amt_msat_ptr);
-       amt_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uintptr_t)amt_msat) & ~1));
+       amt_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)untag_ptr(amt_msat));
        LDKStr description_conv = java_to_owned_str(env, description);
        LDKCResult_InvoiceSignOrCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceSignOrCreationErrorZ), "LDKCResult_InvoiceSignOrCreationErrorZ");
        *ret_conv = create_invoice_from_channelmanager_and_duration_since_epoch(&channelmanager_conv, keys_manager_conv, network_conv, amt_msat_conv, description_conv, duration_since_epoch, invoice_expiry_delta_secs);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_DefaultRouter_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKDefaultRouter this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        DefaultRouter_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DefaultRouter_1new(JNIEnv *env, jclass clz, int64_t network_graph, int64_t logger, int8_tArray random_seed_bytes) {
        LDKNetworkGraph network_graph_conv;
-       network_graph_conv.inner = (void*)(network_graph & (~1));
-       network_graph_conv.is_owned = false;
+       network_graph_conv.inner = untag_ptr(network_graph);
+       network_graph_conv.is_owned = ptr_is_owned(network_graph);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(network_graph_conv);
-       void* logger_ptr = (void*)(((uintptr_t)logger) & ~1);
+       network_graph_conv.is_owned = false;
+       void* logger_ptr = untag_ptr(logger);
        CHECK_ACCESS(logger_ptr);
        LDKLogger logger_conv = *(LDKLogger*)(logger_ptr);
        if (logger_conv.free == LDKLogger_JCalls_free) {
@@ -49813,59 +47812,56 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DefaultRouter_1new(JNIEnv *
        (*env)->GetByteArrayRegion(env, random_seed_bytes, 0, 32, random_seed_bytes_ref.data);
        LDKDefaultRouter ret_var = DefaultRouter_new(&network_graph_conv, logger_conv, random_seed_bytes_ref);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DefaultRouter_1as_1Router(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKDefaultRouter this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKRouter* ret_ret = MALLOC(sizeof(LDKRouter), "LDKRouter");
        *ret_ret = DefaultRouter_as_Router(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1as_1Payer(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelManager this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKPayer* ret_ret = MALLOC(sizeof(LDKPayer), "LDKPayer");
        *ret_ret = ChannelManager_as_Payer(&this_arg_conv);
-       return (int64_t)ret_ret;
+       return tag_ptr(ret_ret, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SiPrefix_1from_1str(JNIEnv *env, jclass clz, jstring s) {
        LDKStr s_conv = java_to_owned_str(env, s);
        LDKCResult_SiPrefixParseErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SiPrefixParseErrorZ), "LDKCResult_SiPrefixParseErrorZ");
        *ret_conv = SiPrefix_from_str(s_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Invoice_1from_1str(JNIEnv *env, jclass clz, jstring s) {
        LDKStr s_conv = java_to_owned_str(env, s);
        LDKCResult_InvoiceParseOrSemanticErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceParseOrSemanticErrorZ), "LDKCResult_InvoiceParseOrSemanticErrorZ");
        *ret_conv = Invoice_from_str(s_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SignedRawInvoice_1from_1str(JNIEnv *env, jclass clz, jstring s) {
        LDKStr s_conv = java_to_owned_str(env, s);
        LDKCResult_SignedRawInvoiceParseErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SignedRawInvoiceParseErrorZ), "LDKCResult_SignedRawInvoiceParseErrorZ");
        *ret_conv = SignedRawInvoice_from_str(s_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_ParseError_1to_1str(JNIEnv *env, jclass clz, int64_t o) {
-       LDKParseError* o_conv = (LDKParseError*)o;
+       LDKParseError* o_conv = (LDKParseError*)untag_ptr(o);
        LDKStr ret_str = ParseError_to_str(o_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
        Str_free(ret_str);
@@ -49873,7 +47869,7 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_ParseError_1to_1str(JNIEnv
 }
 
 JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_ParseOrSemanticError_1to_1str(JNIEnv *env, jclass clz, int64_t o) {
-       LDKParseOrSemanticError* o_conv = (LDKParseOrSemanticError*)o;
+       LDKParseOrSemanticError* o_conv = (LDKParseOrSemanticError*)untag_ptr(o);
        LDKStr ret_str = ParseOrSemanticError_to_str(o_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
        Str_free(ret_str);
@@ -49882,9 +47878,10 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_ParseOrSemanticError_1to_1s
 
 JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_Invoice_1to_1str(JNIEnv *env, jclass clz, int64_t o) {
        LDKInvoice o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = false;
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
+       o_conv.is_owned = false;
        LDKStr ret_str = Invoice_to_str(&o_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
        Str_free(ret_str);
@@ -49893,9 +47890,10 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_Invoice_1to_1str(JNIEnv *en
 
 JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_SignedRawInvoice_1to_1str(JNIEnv *env, jclass clz, int64_t o) {
        LDKSignedRawInvoice o_conv;
-       o_conv.inner = (void*)(o & (~1));
-       o_conv.is_owned = false;
+       o_conv.inner = untag_ptr(o);
+       o_conv.is_owned = ptr_is_owned(o);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(o_conv);
+       o_conv.is_owned = false;
        LDKStr ret_str = SignedRawInvoice_to_str(&o_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
        Str_free(ret_str);
@@ -49903,7 +47901,7 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_SignedRawInvoice_1to_1str(J
 }
 
 JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_Currency_1to_1str(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCurrency* o_conv = (LDKCurrency*)(o & ~1);
+       LDKCurrency* o_conv = (LDKCurrency*)untag_ptr(o);
        LDKStr ret_str = Currency_to_str(o_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
        Str_free(ret_str);
@@ -49911,7 +47909,7 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_Currency_1to_1str(JNIEnv *e
 }
 
 JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_SiPrefix_1to_1str(JNIEnv *env, jclass clz, int64_t o) {
-       LDKSiPrefix* o_conv = (LDKSiPrefix*)(o & ~1);
+       LDKSiPrefix* o_conv = (LDKSiPrefix*)untag_ptr(o);
        LDKStr ret_str = SiPrefix_to_str(o_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
        Str_free(ret_str);
@@ -49920,113 +47918,112 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_SiPrefix_1to_1str(JNIEnv *e
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RapidGossipSync_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKRapidGossipSync this_obj_conv;
-       this_obj_conv.inner = (void*)(this_obj & (~1));
-       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       this_obj_conv.inner = untag_ptr(this_obj);
+       this_obj_conv.is_owned = ptr_is_owned(this_obj);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_obj_conv);
        RapidGossipSync_free(this_obj_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RapidGossipSync_1new(JNIEnv *env, jclass clz, int64_t network_graph) {
        LDKNetworkGraph network_graph_conv;
-       network_graph_conv.inner = (void*)(network_graph & (~1));
-       network_graph_conv.is_owned = false;
+       network_graph_conv.inner = untag_ptr(network_graph);
+       network_graph_conv.is_owned = ptr_is_owned(network_graph);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(network_graph_conv);
+       network_graph_conv.is_owned = false;
        LDKRapidGossipSync ret_var = RapidGossipSync_new(&network_graph_conv);
        int64_t ret_ref = 0;
-       CHECK((((uintptr_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
-       CHECK((((uintptr_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        CHECK_INNER_FIELD_ACCESS_OR_NULL(ret_var);
-       ret_ref = (uintptr_t)ret_var.inner;
-       if (ret_var.is_owned) {
-               ret_ref |= 1;
-       }
+       ret_ref = tag_ptr(ret_var.inner, ret_var.is_owned);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RapidGossipSync_1sync_1network_1graph_1with_1file_1path(JNIEnv *env, jclass clz, int64_t this_arg, jstring sync_path) {
        LDKRapidGossipSync this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKStr sync_path_conv = java_to_owned_str(env, sync_path);
        LDKCResult_u32GraphSyncErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_u32GraphSyncErrorZ), "LDKCResult_u32GraphSyncErrorZ");
        *ret_conv = RapidGossipSync_sync_network_graph_with_file_path(&this_arg_conv, sync_path_conv);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }
 
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_RapidGossipSync_1is_1initial_1sync_1complete(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKRapidGossipSync this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        jboolean ret_conv = RapidGossipSync_is_initial_sync_complete(&this_arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_GraphSyncError_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       if ((this_ptr & 1) != 0) return;
-       void* this_ptr_ptr = (void*)(((uintptr_t)this_ptr) & ~1);
+       if (!ptr_is_owned(this_ptr)) return;
+       void* this_ptr_ptr = untag_ptr(this_ptr);
        CHECK_ACCESS(this_ptr_ptr);
        LDKGraphSyncError this_ptr_conv = *(LDKGraphSyncError*)(this_ptr_ptr);
-       FREE((void*)this_ptr);
+       FREE(untag_ptr(this_ptr));
        GraphSyncError_free(this_ptr_conv);
 }
 
-static inline uintptr_t GraphSyncError_clone_ptr(LDKGraphSyncError *NONNULL_PTR arg) {
+static inline uint64_t GraphSyncError_clone_ptr(LDKGraphSyncError *NONNULL_PTR arg) {
        LDKGraphSyncError *ret_copy = MALLOC(sizeof(LDKGraphSyncError), "LDKGraphSyncError");
        *ret_copy = GraphSyncError_clone(arg);
-int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_GraphSyncError_1clone_1ptr(JNIEnv *env, jclass clz, int64_t arg) {
-       LDKGraphSyncError* arg_conv = (LDKGraphSyncError*)arg;
+       LDKGraphSyncError* arg_conv = (LDKGraphSyncError*)untag_ptr(arg);
        int64_t ret_conv = GraphSyncError_clone_ptr(arg_conv);
        return ret_conv;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_GraphSyncError_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKGraphSyncError* orig_conv = (LDKGraphSyncError*)orig;
+       LDKGraphSyncError* orig_conv = (LDKGraphSyncError*)untag_ptr(orig);
        LDKGraphSyncError *ret_copy = MALLOC(sizeof(LDKGraphSyncError), "LDKGraphSyncError");
        *ret_copy = GraphSyncError_clone(orig_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_GraphSyncError_1decode_1error(JNIEnv *env, jclass clz, int64_t a) {
        LDKDecodeError a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = (a & 1) || (a == 0);
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
        a_conv = DecodeError_clone(&a_conv);
        LDKGraphSyncError *ret_copy = MALLOC(sizeof(LDKGraphSyncError), "LDKGraphSyncError");
        *ret_copy = GraphSyncError_decode_error(a_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_GraphSyncError_1lightning_1error(JNIEnv *env, jclass clz, int64_t a) {
        LDKLightningError a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = (a & 1) || (a == 0);
+       a_conv.inner = untag_ptr(a);
+       a_conv.is_owned = ptr_is_owned(a);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(a_conv);
        a_conv = LightningError_clone(&a_conv);
        LDKGraphSyncError *ret_copy = MALLOC(sizeof(LDKGraphSyncError), "LDKGraphSyncError");
        *ret_copy = GraphSyncError_lightning_error(a_conv);
-       int64_t ret_ref = (uintptr_t)ret_copy;
+       int64_t ret_ref = tag_ptr(ret_copy, true);
        return ret_ref;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RapidGossipSync_1update_1network_1graph(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray update_data) {
        LDKRapidGossipSync this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
+       this_arg_conv.inner = untag_ptr(this_arg);
+       this_arg_conv.is_owned = ptr_is_owned(this_arg);
        CHECK_INNER_FIELD_ACCESS_OR_NULL(this_arg_conv);
+       this_arg_conv.is_owned = false;
        LDKu8slice update_data_ref;
        update_data_ref.datalen = (*env)->GetArrayLength(env, update_data);
        update_data_ref.data = (*env)->GetByteArrayElements (env, update_data, NULL);
        LDKCResult_u32GraphSyncErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_u32GraphSyncErrorZ), "LDKCResult_u32GraphSyncErrorZ");
        *ret_conv = RapidGossipSync_update_network_graph(&this_arg_conv, update_data_ref);
        (*env)->ReleaseByteArrayElements(env, update_data, (int8_t*)update_data_ref.data, 0);
-       return (int64_t)ret_conv;
+       return tag_ptr(ret_conv, true);
 }