Update auto-generate bindings (incl new RL clone methods)
[ldk-java] / src / main / jni / bindings.c.body
index c67f2147dfdcf9c433119a5af39ee7381c86622c..a13aed2912b0850d151decb4e93d8f0a483a2f5f 100644 (file)
@@ -10,6 +10,7 @@
 #define DEBUG_PRINT(...) fprintf(stderr, __VA_ARGS__)
 #define MALLOC(a, _) malloc(a)
 #define FREE(p) if ((uint64_t)(p) > 1024) { free(p); }
+#define CHECK_ACCESS(p)
 #define DO_ASSERT(a) (void)(a)
 #define CHECK(a)
 
@@ -1306,17 +1307,6 @@ JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_LDKCResult_1TxOutAccessError
        jclass err_conv = LDKAccessError_to_java(env, (*val->contents.err));
        return err_conv;
 }
-JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKC2Tuple_1usizeTransactionZ_1new(JNIEnv *env, jclass clz, int64_t a, int8_tArray b) {
-       LDKC2Tuple_usizeTransactionZ* ret = MALLOC(sizeof(LDKC2Tuple_usizeTransactionZ), "LDKC2Tuple_usizeTransactionZ");
-       ret->a = a;
-       LDKTransaction b_ref;
-       b_ref.datalen = (*env)->GetArrayLength(env, b);
-       b_ref.data = MALLOC(b_ref.datalen, "LDKTransaction Bytes");
-       (*env)->GetByteArrayRegion(env, b, 0, b_ref.datalen, b_ref.data);
-       b_ref.data_is_owned = false;
-       ret->b = b_ref;
-       return (uint64_t)ret;
-}
 static inline uintptr_t C2Tuple_usizeTransactionZ_get_a(LDKC2Tuple_usizeTransactionZ *NONNULL_PTR tuple){
        return tuple->a;
 }
@@ -1348,7 +1338,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCVec_1C2Tuple_1usizeTran
                int64_t *java_elems = (*env)->GetPrimitiveArrayCritical(env, elems, NULL);
                for (size_t i = 0; i < ret->datalen; i++) {
                        int64_t arr_elem = java_elems[i];
-                       LDKC2Tuple_usizeTransactionZ arr_elem_conv = *(LDKC2Tuple_usizeTransactionZ*)(((uint64_t)arr_elem) & ~1);
+                       void* arr_elem_ptr = (void*)(((uint64_t)arr_elem) & ~1);
+                       CHECK_ACCESS(arr_elem_ptr);
+                       LDKC2Tuple_usizeTransactionZ arr_elem_conv = *(LDKC2Tuple_usizeTransactionZ*)(arr_elem_ptr);
                        arr_elem_conv = C2Tuple_usizeTransactionZ_clone((LDKC2Tuple_usizeTransactionZ*)(((uint64_t)arr_elem) & ~1));
                        ret->data[i] = arr_elem_conv;
                }
@@ -1430,7 +1422,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCVec_1MonitorEventZ_1new
                int64_t *java_elems = (*env)->GetPrimitiveArrayCritical(env, elems, NULL);
                for (size_t i = 0; i < ret->datalen; i++) {
                        int64_t arr_elem = java_elems[i];
-                       LDKMonitorEvent arr_elem_conv = *(LDKMonitorEvent*)(((uint64_t)arr_elem) & ~1);
+                       void* arr_elem_ptr = (void*)(((uint64_t)arr_elem) & ~1);
+                       CHECK_ACCESS(arr_elem_ptr);
+                       LDKMonitorEvent arr_elem_conv = *(LDKMonitorEvent*)(arr_elem_ptr);
                        arr_elem_conv = MonitorEvent_clone((LDKMonitorEvent*)(((uint64_t)arr_elem) & ~1));
                        ret->data[i] = arr_elem_conv;
                }
@@ -1610,7 +1604,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCVec_1SpendableOutputDes
                int64_t *java_elems = (*env)->GetPrimitiveArrayCritical(env, elems, NULL);
                for (size_t i = 0; i < ret->datalen; i++) {
                        int64_t arr_elem = java_elems[i];
-                       LDKSpendableOutputDescriptor arr_elem_conv = *(LDKSpendableOutputDescriptor*)(((uint64_t)arr_elem) & ~1);
+                       void* arr_elem_ptr = (void*)(((uint64_t)arr_elem) & ~1);
+                       CHECK_ACCESS(arr_elem_ptr);
+                       LDKSpendableOutputDescriptor arr_elem_conv = *(LDKSpendableOutputDescriptor*)(arr_elem_ptr);
                        arr_elem_conv = SpendableOutputDescriptor_clone((LDKSpendableOutputDescriptor*)(((uint64_t)arr_elem) & ~1));
                        ret->data[i] = arr_elem_conv;
                }
@@ -1999,7 +1995,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCVec_1MessageSendEventZ_
                int64_t *java_elems = (*env)->GetPrimitiveArrayCritical(env, elems, NULL);
                for (size_t i = 0; i < ret->datalen; i++) {
                        int64_t arr_elem = java_elems[i];
-                       LDKMessageSendEvent arr_elem_conv = *(LDKMessageSendEvent*)(((uint64_t)arr_elem) & ~1);
+                       void* arr_elem_ptr = (void*)(((uint64_t)arr_elem) & ~1);
+                       CHECK_ACCESS(arr_elem_ptr);
+                       LDKMessageSendEvent arr_elem_conv = *(LDKMessageSendEvent*)(arr_elem_ptr);
                        arr_elem_conv = MessageSendEvent_clone((LDKMessageSendEvent*)(((uint64_t)arr_elem) & ~1));
                        ret->data[i] = arr_elem_conv;
                }
@@ -2171,28 +2169,6 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_LDKCResult_1NoneNoneZ_1get_1er
        CHECK(!val->result_ok);
        return *val->contents.err;
 }
-JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKC2Tuple_1SignatureCVec_1SignatureZZ_1new(JNIEnv *env, jclass clz, int8_tArray a, jobjectArray b) {
-       LDKC2Tuple_SignatureCVec_SignatureZZ* ret = MALLOC(sizeof(LDKC2Tuple_SignatureCVec_SignatureZZ), "LDKC2Tuple_SignatureCVec_SignatureZZ");
-       LDKSignature a_ref;
-       CHECK((*env)->GetArrayLength(env, a) == 64);
-       (*env)->GetByteArrayRegion(env, a, 0, 64, a_ref.compact_form);
-       ret->a = a_ref;
-       LDKCVec_SignatureZ b_constr;
-       b_constr.datalen = (*env)->GetArrayLength(env, b);
-       if (b_constr.datalen > 0)
-               b_constr.data = MALLOC(b_constr.datalen * sizeof(LDKSignature), "LDKCVec_SignatureZ Elements");
-       else
-               b_constr.data = NULL;
-       for (size_t i = 0; i < b_constr.datalen; i++) {
-               int8_tArray b_conv_8 = (*env)->GetObjectArrayElement(env, b, i);
-               LDKSignature b_conv_8_ref;
-               CHECK((*env)->GetArrayLength(env, b_conv_8) == 64);
-               (*env)->GetByteArrayRegion(env, b_conv_8, 0, 64, b_conv_8_ref.compact_form);
-               b_constr.data[i] = b_conv_8_ref;
-       }
-       ret->b = b_constr;
-       return (uint64_t)ret;
-}
 static inline struct LDKSignature C2Tuple_SignatureCVec_SignatureZZ_get_a(LDKC2Tuple_SignatureCVec_SignatureZZ *NONNULL_PTR tuple){
        return tuple->a;
 }
@@ -2358,7 +2334,9 @@ 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.");
        }
-       LDKCResult_NoneNoneZ ret_conv = *(LDKCResult_NoneNoneZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_NoneNoneZ ret_conv = *(LDKCResult_NoneNoneZ*)(ret_ptr);
        ret_conv = CResult_NoneNoneZ_clone((LDKCResult_NoneNoneZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -2413,7 +2391,9 @@ 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.");
        }
-       LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ ret_conv = *(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ ret_conv = *(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(ret_ptr);
        ret_conv = CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_clone((LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -2438,7 +2418,9 @@ 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.");
        }
-       LDKCResult_NoneNoneZ ret_conv = *(LDKCResult_NoneNoneZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_NoneNoneZ ret_conv = *(LDKCResult_NoneNoneZ*)(ret_ptr);
        ret_conv = CResult_NoneNoneZ_clone((LDKCResult_NoneNoneZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -2469,7 +2451,9 @@ 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.");
        }
-       LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ ret_conv = *(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ ret_conv = *(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(ret_ptr);
        ret_conv = CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_clone((LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -2498,7 +2482,9 @@ 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.");
        }
-       LDKCResult_SignatureNoneZ ret_conv = *(LDKCResult_SignatureNoneZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_SignatureNoneZ ret_conv = *(LDKCResult_SignatureNoneZ*)(ret_ptr);
        ret_conv = CResult_SignatureNoneZ_clone((LDKCResult_SignatureNoneZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -2535,7 +2521,9 @@ 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.");
        }
-       LDKCResult_SignatureNoneZ ret_conv = *(LDKCResult_SignatureNoneZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_SignatureNoneZ ret_conv = *(LDKCResult_SignatureNoneZ*)(ret_ptr);
        ret_conv = CResult_SignatureNoneZ_clone((LDKCResult_SignatureNoneZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -2572,7 +2560,9 @@ 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.");
        }
-       LDKCResult_SignatureNoneZ ret_conv = *(LDKCResult_SignatureNoneZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_SignatureNoneZ ret_conv = *(LDKCResult_SignatureNoneZ*)(ret_ptr);
        ret_conv = CResult_SignatureNoneZ_clone((LDKCResult_SignatureNoneZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -2589,7 +2579,7 @@ LDKCResult_SignatureNoneZ sign_closing_transaction_LDKBaseSign_jcall(const void*
                DO_ASSERT(get_jenv_res == JNI_OK);
        }
        LDKClosingTransaction closing_tx_var = *closing_tx;
-       // Warning: we may need a move here but no clone is available for LDKClosingTransaction
+       closing_tx_var = ClosingTransaction_clone(closing_tx);
        CHECK((((uint64_t)closing_tx_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
        CHECK((((uint64_t)&closing_tx_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
        uint64_t closing_tx_ref = (uint64_t)closing_tx_var.inner;
@@ -2603,7 +2593,9 @@ 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.");
        }
-       LDKCResult_SignatureNoneZ ret_conv = *(LDKCResult_SignatureNoneZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_SignatureNoneZ ret_conv = *(LDKCResult_SignatureNoneZ*)(ret_ptr);
        ret_conv = CResult_SignatureNoneZ_clone((LDKCResult_SignatureNoneZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -2634,7 +2626,9 @@ LDKCResult_SignatureNoneZ sign_channel_announcement_LDKBaseSign_jcall(const void
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to sign_channel_announcement in LDKBaseSign from rust threw an exception.");
        }
-       LDKCResult_SignatureNoneZ ret_conv = *(LDKCResult_SignatureNoneZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_SignatureNoneZ ret_conv = *(LDKCResult_SignatureNoneZ*)(ret_ptr);
        ret_conv = CResult_SignatureNoneZ_clone((LDKCResult_SignatureNoneZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -2735,21 +2729,27 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKBaseSign_1new(JNIEnv *en
        return (uint64_t)res_ptr;
 }
 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) {
-       LDKBaseSign* this_arg_conv = (LDKBaseSign*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
        return ret_arr;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_BaseSign_1release_1commitment_1secret(JNIEnv *env, jclass clz, int64_t this_arg, int64_t idx) {
-       LDKBaseSign* this_arg_conv = (LDKBaseSign*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
        return ret_arr;
 }
 
 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) {
-       LDKBaseSign* this_arg_conv = (LDKBaseSign*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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;
@@ -2759,14 +2759,18 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1validate_1holder_
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_BaseSign_1channel_1keys_1id(JNIEnv *env, jclass clz, int64_t this_arg) {
-       LDKBaseSign* this_arg_conv = (LDKBaseSign*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
        return ret_arr;
 }
 
 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) {
-       LDKBaseSign* this_arg_conv = (LDKBaseSign*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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;
@@ -2776,7 +2780,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1sign_1counterpart
 }
 
 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) {
-       LDKBaseSign* this_arg_conv = (LDKBaseSign*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        unsigned char secret_arr[32];
        CHECK((*env)->GetArrayLength(env, secret) == 32);
        (*env)->GetByteArrayRegion(env, secret, 0, 32, secret_arr);
@@ -2787,7 +2793,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1validate_1counter
 }
 
 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) {
-       LDKBaseSign* this_arg_conv = (LDKBaseSign*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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;
@@ -2797,7 +2805,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1sign_1holder_1com
 }
 
 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) {
-       LDKBaseSign* this_arg_conv = (LDKBaseSign*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
        justice_tx_ref.data = MALLOC(justice_tx_ref.datalen, "LDKTransaction Bytes");
@@ -2813,7 +2823,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1sign_1justice_1re
 }
 
 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) {
-       LDKBaseSign* this_arg_conv = (LDKBaseSign*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
        justice_tx_ref.data = MALLOC(justice_tx_ref.datalen, "LDKTransaction Bytes");
@@ -2832,7 +2844,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1sign_1justice_1re
 }
 
 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) {
-       LDKBaseSign* this_arg_conv = (LDKBaseSign*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
        htlc_tx_ref.data = MALLOC(htlc_tx_ref.datalen, "LDKTransaction Bytes");
@@ -2850,7 +2864,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1sign_1counterpart
 }
 
 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) {
-       LDKBaseSign* this_arg_conv = (LDKBaseSign*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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;
@@ -2860,7 +2876,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1sign_1closing_1tr
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1sign_1channel_1announcement(JNIEnv *env, jclass clz, int64_t this_arg, int64_t msg) {
-       LDKBaseSign* this_arg_conv = (LDKBaseSign*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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;
@@ -2870,7 +2888,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BaseSign_1sign_1channel_1an
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_BaseSign_1ready_1channel(JNIEnv *env, jclass clz, int64_t this_arg, int64_t channel_parameters) {
-       LDKBaseSign* this_arg_conv = (LDKBaseSign*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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;
@@ -2883,7 +2903,9 @@ 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) {
-       LDKBaseSign* this_arg_conv = (LDKBaseSign*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       LDKBaseSign* this_arg_conv = (LDKBaseSign*)this_arg_ptr;
        LDKChannelPublicKeys ret_var = LDKBaseSign_set_get_pubkeys(this_arg_conv);
        CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
        CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
@@ -2985,7 +3007,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKSign_1get_1BaseSign(JNIE
        return (int64_t)(res_ptr | 1);
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Sign_1write(JNIEnv *env, jclass clz, int64_t this_arg) {
-       LDKSign* this_arg_conv = (LDKSign*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -3087,7 +3111,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCVec_1TxOutZ_1new(JNIEnv
                int64_t *java_elems = (*env)->GetPrimitiveArrayCritical(env, elems, NULL);
                for (size_t i = 0; i < ret->datalen; i++) {
                        int64_t arr_elem = java_elems[i];
-                       LDKTxOut arr_elem_conv = *(LDKTxOut*)(((uint64_t)arr_elem) & ~1);
+                       void* arr_elem_ptr = (void*)(((uint64_t)arr_elem) & ~1);
+                       CHECK_ACCESS(arr_elem_ptr);
+                       LDKTxOut arr_elem_conv = *(LDKTxOut*)(arr_elem_ptr);
                        arr_elem_conv = TxOut_clone((LDKTxOut*)(((uint64_t)arr_elem) & ~1));
                        ret->data[i] = arr_elem_conv;
                }
@@ -3118,19 +3144,6 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_LDKCResult_1TransactionNoneZ_1
        CHECK(!val->result_ok);
        return *val->contents.err;
 }
-JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKC2Tuple_1BlockHashChannelMonitorZ_1new(JNIEnv *env, jclass clz, int8_tArray a, int64_t b) {
-       LDKC2Tuple_BlockHashChannelMonitorZ* ret = MALLOC(sizeof(LDKC2Tuple_BlockHashChannelMonitorZ), "LDKC2Tuple_BlockHashChannelMonitorZ");
-       LDKThirtyTwoBytes a_ref;
-       CHECK((*env)->GetArrayLength(env, a) == 32);
-       (*env)->GetByteArrayRegion(env, a, 0, 32, a_ref.data);
-       ret->a = a_ref;
-       LDKChannelMonitor b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = (b & 1) || (b == 0);
-       b_conv = ChannelMonitor_clone(&b_conv);
-       ret->b = b_conv;
-       return (uint64_t)ret;
-}
 static inline struct LDKThirtyTwoBytes C2Tuple_BlockHashChannelMonitorZ_get_a(LDKC2Tuple_BlockHashChannelMonitorZ *NONNULL_PTR tuple){
        return ThirtyTwoBytes_clone(&tuple->a);
 }
@@ -3166,7 +3179,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCVec_1C2Tuple_1BlockHash
                int64_t *java_elems = (*env)->GetPrimitiveArrayCritical(env, elems, NULL);
                for (size_t i = 0; i < ret->datalen; i++) {
                        int64_t arr_elem = java_elems[i];
-                       LDKC2Tuple_BlockHashChannelMonitorZ arr_elem_conv = *(LDKC2Tuple_BlockHashChannelMonitorZ*)(((uint64_t)arr_elem) & ~1);
+                       void* arr_elem_ptr = (void*)(((uint64_t)arr_elem) & ~1);
+                       CHECK_ACCESS(arr_elem_ptr);
+                       LDKC2Tuple_BlockHashChannelMonitorZ arr_elem_conv = *(LDKC2Tuple_BlockHashChannelMonitorZ*)(arr_elem_ptr);
                        arr_elem_conv = C2Tuple_BlockHashChannelMonitorZ_clone((LDKC2Tuple_BlockHashChannelMonitorZ*)(((uint64_t)arr_elem) & ~1));
                        ret->data[i] = arr_elem_conv;
                }
@@ -3358,7 +3373,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCVec_1CResult_1NoneAPIEr
                int64_t *java_elems = (*env)->GetPrimitiveArrayCritical(env, elems, NULL);
                for (size_t i = 0; i < ret->datalen; i++) {
                        int64_t arr_elem = java_elems[i];
-                       LDKCResult_NoneAPIErrorZ arr_elem_conv = *(LDKCResult_NoneAPIErrorZ*)(((uint64_t)arr_elem) & ~1);
+                       void* arr_elem_ptr = (void*)(((uint64_t)arr_elem) & ~1);
+                       CHECK_ACCESS(arr_elem_ptr);
+                       LDKCResult_NoneAPIErrorZ arr_elem_conv = *(LDKCResult_NoneAPIErrorZ*)(arr_elem_ptr);
                        arr_elem_conv = CResult_NoneAPIErrorZ_clone((LDKCResult_NoneAPIErrorZ*)(((uint64_t)arr_elem) & ~1));
                        ret->data[i] = arr_elem_conv;
                }
@@ -3383,7 +3400,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCVec_1APIErrorZ_1new(JNI
                int64_t *java_elems = (*env)->GetPrimitiveArrayCritical(env, elems, NULL);
                for (size_t i = 0; i < ret->datalen; i++) {
                        int64_t arr_elem = java_elems[i];
-                       LDKAPIError arr_elem_conv = *(LDKAPIError*)(((uint64_t)arr_elem) & ~1);
+                       void* arr_elem_ptr = (void*)(((uint64_t)arr_elem) & ~1);
+                       CHECK_ACCESS(arr_elem_ptr);
+                       LDKAPIError arr_elem_conv = *(LDKAPIError*)(arr_elem_ptr);
                        arr_elem_conv = APIError_clone((LDKAPIError*)(((uint64_t)arr_elem) & ~1));
                        ret->data[i] = arr_elem_conv;
                }
@@ -3523,19 +3542,6 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCResult_1NonePaymentSend
        uint64_t err_ref = ((uint64_t)&(*val->contents.err)) | 1;
        return err_ref;
 }
-JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKC2Tuple_1PaymentHashPaymentIdZ_1new(JNIEnv *env, jclass clz, int8_tArray a, int64_t b) {
-       LDKC2Tuple_PaymentHashPaymentIdZ* ret = MALLOC(sizeof(LDKC2Tuple_PaymentHashPaymentIdZ), "LDKC2Tuple_PaymentHashPaymentIdZ");
-       LDKThirtyTwoBytes a_ref;
-       CHECK((*env)->GetArrayLength(env, a) == 32);
-       (*env)->GetByteArrayRegion(env, a, 0, 32, a_ref.data);
-       ret->a = a_ref;
-       LDKPaymentId b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = (b & 1) || (b == 0);
-       b_conv = PaymentId_clone(&b_conv);
-       ret->b = b_conv;
-       return (uint64_t)ret;
-}
 static inline struct LDKThirtyTwoBytes C2Tuple_PaymentHashPaymentIdZ_get_a(LDKC2Tuple_PaymentHashPaymentIdZ *NONNULL_PTR tuple){
        return ThirtyTwoBytes_clone(&tuple->a);
 }
@@ -3644,7 +3650,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCVec_1NetAddressZ_1new(J
                int64_t *java_elems = (*env)->GetPrimitiveArrayCritical(env, elems, NULL);
                for (size_t i = 0; i < ret->datalen; i++) {
                        int64_t arr_elem = java_elems[i];
-                       LDKNetAddress arr_elem_conv = *(LDKNetAddress*)(((uint64_t)arr_elem) & ~1);
+                       void* arr_elem_ptr = (void*)(((uint64_t)arr_elem) & ~1);
+                       CHECK_ACCESS(arr_elem_ptr);
+                       LDKNetAddress arr_elem_conv = *(LDKNetAddress*)(arr_elem_ptr);
                        arr_elem_conv = NetAddress_clone((LDKNetAddress*)(((uint64_t)arr_elem) & ~1));
                        ret->data[i] = arr_elem_conv;
                }
@@ -3659,18 +3667,6 @@ static inline LDKCVec_NetAddressZ CVec_NetAddressZ_clone(const LDKCVec_NetAddres
        }
        return ret;
 }
-JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKC2Tuple_1PaymentHashPaymentSecretZ_1new(JNIEnv *env, jclass clz, int8_tArray a, int8_tArray b) {
-       LDKC2Tuple_PaymentHashPaymentSecretZ* ret = MALLOC(sizeof(LDKC2Tuple_PaymentHashPaymentSecretZ), "LDKC2Tuple_PaymentHashPaymentSecretZ");
-       LDKThirtyTwoBytes a_ref;
-       CHECK((*env)->GetArrayLength(env, a) == 32);
-       (*env)->GetByteArrayRegion(env, a, 0, 32, a_ref.data);
-       ret->a = a_ref;
-       LDKThirtyTwoBytes b_ref;
-       CHECK((*env)->GetArrayLength(env, b) == 32);
-       (*env)->GetByteArrayRegion(env, b, 0, 32, b_ref.data);
-       ret->b = b_ref;
-       return (uint64_t)ret;
-}
 static inline struct LDKThirtyTwoBytes C2Tuple_PaymentHashPaymentSecretZ_get_a(LDKC2Tuple_PaymentHashPaymentSecretZ *NONNULL_PTR tuple){
        return ThirtyTwoBytes_clone(&tuple->a);
 }
@@ -3789,7 +3785,9 @@ 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.");
        }
-       LDKCResult_NoneChannelMonitorUpdateErrZ ret_conv = *(LDKCResult_NoneChannelMonitorUpdateErrZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_NoneChannelMonitorUpdateErrZ ret_conv = *(LDKCResult_NoneChannelMonitorUpdateErrZ*)(ret_ptr);
        ret_conv = CResult_NoneChannelMonitorUpdateErrZ_clone((LDKCResult_NoneChannelMonitorUpdateErrZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -3826,7 +3824,9 @@ 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.");
        }
-       LDKCResult_NoneChannelMonitorUpdateErrZ ret_conv = *(LDKCResult_NoneChannelMonitorUpdateErrZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_NoneChannelMonitorUpdateErrZ ret_conv = *(LDKCResult_NoneChannelMonitorUpdateErrZ*)(ret_ptr);
        ret_conv = CResult_NoneChannelMonitorUpdateErrZ_clone((LDKCResult_NoneChannelMonitorUpdateErrZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -3858,7 +3858,9 @@ LDKCVec_MonitorEventZ release_pending_monitor_events_LDKWatch_jcall(const void*
        int64_t* ret_vals = (*env)->GetLongArrayElements (env, ret, NULL);
        for (size_t o = 0; o < ret_constr.datalen; o++) {
                int64_t ret_conv_14 = ret_vals[o];
-               LDKMonitorEvent ret_conv_14_conv = *(LDKMonitorEvent*)(((uint64_t)ret_conv_14) & ~1);
+               void* ret_conv_14_ptr = (void*)(((uint64_t)ret_conv_14) & ~1);
+               CHECK_ACCESS(ret_conv_14_ptr);
+               LDKMonitorEvent ret_conv_14_conv = *(LDKMonitorEvent*)(ret_conv_14_ptr);
                ret_conv_14_conv = MonitorEvent_clone((LDKMonitorEvent*)(((uint64_t)ret_conv_14) & ~1));
                ret_constr.data[o] = ret_conv_14_conv;
        }
@@ -3901,7 +3903,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKWatch_1new(JNIEnv *env,
        return (uint64_t)res_ptr;
 }
 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) {
-       LDKWatch* this_arg_conv = (LDKWatch*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -3916,7 +3920,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Watch_1watch_1channel(JNIEn
 }
 
 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) {
-       LDKWatch* this_arg_conv = (LDKWatch*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -3931,13 +3937,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Watch_1update_1channel(JNIE
 }
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_Watch_1release_1pending_1monitor_1events(JNIEnv *env, jclass clz, int64_t this_arg) {
-       LDKWatch* this_arg_conv = (LDKWatch*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       LDKWatch* this_arg_conv = (LDKWatch*)this_arg_ptr;
        LDKCVec_MonitorEventZ ret_var = (this_arg_conv->release_pending_monitor_events)(this_arg_conv->this_arg);
        int64_tArray ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
        int64_t *ret_arr_ptr = (*env)->GetPrimitiveArrayCritical(env, ret_arr, NULL);
        for (size_t o = 0; o < ret_var.datalen; o++) {
                LDKMonitorEvent *ret_conv_14_copy = MALLOC(sizeof(LDKMonitorEvent), "LDKMonitorEvent");
-               *ret_conv_14_copy = MonitorEvent_clone(&ret_var.data[o]);
+               *ret_conv_14_copy = ret_var.data[o];
                uint64_t ret_conv_14_ref = (uint64_t)ret_conv_14_copy;
                ret_arr_ptr[o] = ret_conv_14_ref;
        }
@@ -4020,7 +4028,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKBroadcasterInterface_1ne
        return (uint64_t)res_ptr;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_BroadcasterInterface_1broadcast_1transaction(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray tx) {
-       LDKBroadcasterInterface* this_arg_conv = (LDKBroadcasterInterface*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       LDKBroadcasterInterface* this_arg_conv = (LDKBroadcasterInterface*)this_arg_ptr;
        LDKTransaction tx_ref;
        tx_ref.datalen = (*env)->GetArrayLength(env, tx);
        tx_ref.data = MALLOC(tx_ref.datalen, "LDKTransaction Bytes");
@@ -4148,7 +4158,9 @@ 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.");
        }
-       LDKSign ret_conv = *(LDKSign*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKSign ret_conv = *(LDKSign*)(ret_ptr);
        ret_conv = Sign_clone(&ret_conv);
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -4198,7 +4210,9 @@ 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.");
        }
-       LDKCResult_SignDecodeErrorZ ret_conv = *(LDKCResult_SignDecodeErrorZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_SignDecodeErrorZ ret_conv = *(LDKCResult_SignDecodeErrorZ*)(ret_ptr);
        ret_conv = CResult_SignDecodeErrorZ_clone((LDKCResult_SignDecodeErrorZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -4225,7 +4239,9 @@ 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.");
        }
-       LDKCResult_RecoverableSignatureNoneZ ret_conv = *(LDKCResult_RecoverableSignatureNoneZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_RecoverableSignatureNoneZ ret_conv = *(LDKCResult_RecoverableSignatureNoneZ*)(ret_ptr);
        ret_conv = CResult_RecoverableSignatureNoneZ_clone((LDKCResult_RecoverableSignatureNoneZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -4277,14 +4293,18 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKKeysInterface_1new(JNIEn
        return (uint64_t)res_ptr;
 }
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_KeysInterface_1get_1node_1secret(JNIEnv *env, jclass clz, int64_t this_arg) {
-       LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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_node_secret)(this_arg_conv->this_arg).bytes);
        return ret_arr;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_KeysInterface_1get_1destination_1script(JNIEnv *env, jclass clz, int64_t this_arg) {
-       LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -4293,7 +4313,9 @@ 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) {
-       LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
        CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
        CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
@@ -4305,21 +4327,27 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_KeysInterface_1get_1shutdow
 }
 
 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) {
-       LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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 (uint64_t)ret_ret;
 }
 
 JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_KeysInterface_1get_1secure_1random_1bytes(JNIEnv *env, jclass clz, int64_t this_arg) {
-       LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
        return ret_arr;
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_KeysInterface_1read_1chan_1signer(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray reader) {
-       LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)this_arg_ptr;
        LDKu8slice reader_ref;
        reader_ref.datalen = (*env)->GetArrayLength(env, reader);
        reader_ref.data = (*env)->GetByteArrayElements (env, reader, NULL);
@@ -4330,7 +4358,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_KeysInterface_1read_1chan_1
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_KeysInterface_1sign_1invoice(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray invoice_preimage) {
-       LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       LDKKeysInterface* this_arg_conv = (LDKKeysInterface*)this_arg_ptr;
        LDKCVec_u8Z invoice_preimage_ref;
        invoice_preimage_ref.datalen = (*env)->GetArrayLength(env, invoice_preimage);
        invoice_preimage_ref.data = MALLOC(invoice_preimage_ref.datalen, "LDKCVec_u8Z Bytes");
@@ -4412,7 +4442,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKFeeEstimator_1new(JNIEnv
        return (uint64_t)res_ptr;
 }
 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) {
-       LDKFeeEstimator* this_arg_conv = (LDKFeeEstimator*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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_val = (this_arg_conv->get_est_sat_per_1000_weight)(this_arg_conv->this_arg, confirmation_target_conv);
        return ret_val;
@@ -4489,19 +4521,6 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKLogger_1new(JNIEnv *env,
        *res_ptr = LDKLogger_init(env, clz, o);
        return (uint64_t)res_ptr;
 }
-JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKC2Tuple_1BlockHashChannelManagerZ_1new(JNIEnv *env, jclass clz, int8_tArray a, int64_t b) {
-       LDKC2Tuple_BlockHashChannelManagerZ* ret = MALLOC(sizeof(LDKC2Tuple_BlockHashChannelManagerZ), "LDKC2Tuple_BlockHashChannelManagerZ");
-       LDKThirtyTwoBytes a_ref;
-       CHECK((*env)->GetArrayLength(env, a) == 32);
-       (*env)->GetByteArrayRegion(env, a, 0, 32, a_ref.data);
-       ret->a = a_ref;
-       LDKChannelManager b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = (b & 1) || (b == 0);
-       // Warning: we need a move here but no clone is available for LDKChannelManager
-       ret->b = b_conv;
-       return (uint64_t)ret;
-}
 static inline struct LDKThirtyTwoBytes C2Tuple_BlockHashChannelManagerZ_get_a(LDKC2Tuple_BlockHashChannelManagerZ *NONNULL_PTR tuple){
        return ThirtyTwoBytes_clone(&tuple->a);
 }
@@ -4530,8 +4549,7 @@ JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_LDKCResult_1C2Tuple_1Block
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCResult_1C2Tuple_1BlockHashChannelManagerZDecodeErrorZ_1get_1ok(JNIEnv *env, jclass clz, int64_t arg) {
        LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ *val = (LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ*)(arg & ~1);
        CHECK(val->result_ok);
-       LDKC2Tuple_BlockHashChannelManagerZ* res_conv = MALLOC(sizeof(LDKC2Tuple_BlockHashChannelManagerZ), "LDKC2Tuple_BlockHashChannelManagerZ");
-       *res_conv = (*val->contents.result);
+       LDKC2Tuple_BlockHashChannelManagerZ* res_conv = &(*val->contents.result);
        // Warning: we really need to clone here, but no clone is available for LDKC2Tuple_BlockHashChannelManagerZ
        return ((uint64_t)res_conv) | 1;
 }
@@ -4713,13 +4731,17 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKType_1new(JNIEnv *env, j
        return (uint64_t)res_ptr;
 }
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_Type_1type_1id(JNIEnv *env, jclass clz, int64_t this_arg) {
-       LDKType* this_arg_conv = (LDKType*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       LDKType* this_arg_conv = (LDKType*)this_arg_ptr;
        int16_t ret_val = (this_arg_conv->type_id)(this_arg_conv->this_arg);
        return ret_val;
 }
 
 JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_Type_1debug_1str(JNIEnv *env, jclass clz, int64_t this_arg) {
-       LDKType* this_arg_conv = (LDKType*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
        Str_free(ret_str);
@@ -4727,7 +4749,9 @@ 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) {
-       LDKType* this_arg_conv = (LDKType*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
        (*env)->SetByteArrayRegion(env, ret_arr, 0, ret_var.datalen, ret_var.data);
@@ -4831,24 +4855,6 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_LDKCResult_1SignedRawInvoiceNo
        CHECK(!val->result_ok);
        return *val->contents.err;
 }
-JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKC3Tuple_1RawInvoice_1u832InvoiceSignatureZ_1new(JNIEnv *env, jclass clz, int64_t a, int8_tArray b, int64_t c) {
-       LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ* ret = MALLOC(sizeof(LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ), "LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ");
-       LDKRawInvoice a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = (a & 1) || (a == 0);
-       a_conv = RawInvoice_clone(&a_conv);
-       ret->a = a_conv;
-       LDKThirtyTwoBytes b_ref;
-       CHECK((*env)->GetArrayLength(env, b) == 32);
-       (*env)->GetByteArrayRegion(env, b, 0, 32, b_ref.data);
-       ret->b = b_ref;
-       LDKInvoiceSignature c_conv;
-       c_conv.inner = (void*)(c & (~1));
-       c_conv.is_owned = (c & 1) || (c == 0);
-       c_conv = InvoiceSignature_clone(&c_conv);
-       ret->c = c_conv;
-       return (uint64_t)ret;
-}
 static inline struct LDKRawInvoice C3Tuple_RawInvoice_u832InvoiceSignatureZ_get_a(LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ *NONNULL_PTR tuple){
        return RawInvoice_clone(&tuple->a);
 }
@@ -5113,20 +5119,6 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCResult_1NoneMonitorUpda
        uint64_t err_ref = (uint64_t)err_var.inner & ~1;
        return err_ref;
 }
-JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKC2Tuple_1OutPointScriptZ_1new(JNIEnv *env, jclass clz, int64_t a, int8_tArray b) {
-       LDKC2Tuple_OutPointScriptZ* ret = MALLOC(sizeof(LDKC2Tuple_OutPointScriptZ), "LDKC2Tuple_OutPointScriptZ");
-       LDKOutPoint a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = (a & 1) || (a == 0);
-       a_conv = OutPoint_clone(&a_conv);
-       ret->a = a_conv;
-       LDKCVec_u8Z b_ref;
-       b_ref.datalen = (*env)->GetArrayLength(env, b);
-       b_ref.data = MALLOC(b_ref.datalen, "LDKCVec_u8Z Bytes");
-       (*env)->GetByteArrayRegion(env, b, 0, b_ref.datalen, b_ref.data);
-       ret->b = b_ref;
-       return (uint64_t)ret;
-}
 static inline struct LDKOutPoint C2Tuple_OutPointScriptZ_get_a(LDKC2Tuple_OutPointScriptZ *NONNULL_PTR tuple){
        return OutPoint_clone(&tuple->a);
 }
@@ -5154,16 +5146,6 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_C2Tuple_1OutPointScript
        return ret_arr;
 }
 
-JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKC2Tuple_1u32ScriptZ_1new(JNIEnv *env, jclass clz, int32_t a, int8_tArray b) {
-       LDKC2Tuple_u32ScriptZ* ret = MALLOC(sizeof(LDKC2Tuple_u32ScriptZ), "LDKC2Tuple_u32ScriptZ");
-       ret->a = a;
-       LDKCVec_u8Z b_ref;
-       b_ref.datalen = (*env)->GetArrayLength(env, b);
-       b_ref.data = MALLOC(b_ref.datalen, "LDKCVec_u8Z Bytes");
-       (*env)->GetByteArrayRegion(env, b, 0, b_ref.datalen, b_ref.data);
-       ret->b = b_ref;
-       return (uint64_t)ret;
-}
 static inline uint32_t C2Tuple_u32ScriptZ_get_a(LDKC2Tuple_u32ScriptZ *NONNULL_PTR tuple){
        return tuple->a;
 }
@@ -5195,7 +5177,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCVec_1C2Tuple_1u32Script
                int64_t *java_elems = (*env)->GetPrimitiveArrayCritical(env, elems, NULL);
                for (size_t i = 0; i < ret->datalen; i++) {
                        int64_t arr_elem = java_elems[i];
-                       LDKC2Tuple_u32ScriptZ arr_elem_conv = *(LDKC2Tuple_u32ScriptZ*)(((uint64_t)arr_elem) & ~1);
+                       void* arr_elem_ptr = (void*)(((uint64_t)arr_elem) & ~1);
+                       CHECK_ACCESS(arr_elem_ptr);
+                       LDKC2Tuple_u32ScriptZ arr_elem_conv = *(LDKC2Tuple_u32ScriptZ*)(arr_elem_ptr);
                        arr_elem_conv = C2Tuple_u32ScriptZ_clone((LDKC2Tuple_u32ScriptZ*)(((uint64_t)arr_elem) & ~1));
                        ret->data[i] = arr_elem_conv;
                }
@@ -5210,29 +5194,6 @@ static inline LDKCVec_C2Tuple_u32ScriptZZ CVec_C2Tuple_u32ScriptZZ_clone(const L
        }
        return ret;
 }
-JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKC2Tuple_1TxidCVec_1C2Tuple_1u32ScriptZZZ_1new(JNIEnv *env, jclass clz, int8_tArray a, int64_tArray b) {
-       LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ* ret = MALLOC(sizeof(LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ), "LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ");
-       LDKThirtyTwoBytes a_ref;
-       CHECK((*env)->GetArrayLength(env, a) == 32);
-       (*env)->GetByteArrayRegion(env, a, 0, 32, a_ref.data);
-       ret->a = a_ref;
-       LDKCVec_C2Tuple_u32ScriptZZ b_constr;
-       b_constr.datalen = (*env)->GetArrayLength(env, b);
-       if (b_constr.datalen > 0)
-               b_constr.data = MALLOC(b_constr.datalen * sizeof(LDKC2Tuple_u32ScriptZ), "LDKCVec_C2Tuple_u32ScriptZZ Elements");
-       else
-               b_constr.data = NULL;
-       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];
-               LDKC2Tuple_u32ScriptZ b_conv_21_conv = *(LDKC2Tuple_u32ScriptZ*)(((uint64_t)b_conv_21) & ~1);
-               b_conv_21_conv = C2Tuple_u32ScriptZ_clone((LDKC2Tuple_u32ScriptZ*)(((uint64_t)b_conv_21) & ~1));
-               b_constr.data[v] = b_conv_21_conv;
-       }
-       (*env)->ReleaseLongArrayElements(env, b, b_vals, 0);
-       ret->b = b_constr;
-       return (uint64_t)ret;
-}
 static inline struct LDKThirtyTwoBytes C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ_get_a(LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ *NONNULL_PTR tuple){
        return ThirtyTwoBytes_clone(&tuple->a);
 }
@@ -5271,7 +5232,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCVec_1C2Tuple_1TxidCVec_
                int64_t *java_elems = (*env)->GetPrimitiveArrayCritical(env, elems, NULL);
                for (size_t i = 0; i < ret->datalen; i++) {
                        int64_t arr_elem = java_elems[i];
-                       LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ arr_elem_conv = *(LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ*)(((uint64_t)arr_elem) & ~1);
+                       void* arr_elem_ptr = (void*)(((uint64_t)arr_elem) & ~1);
+                       CHECK_ACCESS(arr_elem_ptr);
+                       LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ arr_elem_conv = *(LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ*)(arr_elem_ptr);
                        arr_elem_conv = C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ_clone((LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ*)(((uint64_t)arr_elem) & ~1));
                        ret->data[i] = arr_elem_conv;
                }
@@ -5554,7 +5517,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCVec_1EventZ_1new(JNIEnv
                int64_t *java_elems = (*env)->GetPrimitiveArrayCritical(env, elems, NULL);
                for (size_t i = 0; i < ret->datalen; i++) {
                        int64_t arr_elem = java_elems[i];
-                       LDKEvent arr_elem_conv = *(LDKEvent*)(((uint64_t)arr_elem) & ~1);
+                       void* arr_elem_ptr = (void*)(((uint64_t)arr_elem) & ~1);
+                       CHECK_ACCESS(arr_elem_ptr);
+                       LDKEvent arr_elem_conv = *(LDKEvent*)(arr_elem_ptr);
                        arr_elem_conv = Event_clone((LDKEvent*)(((uint64_t)arr_elem) & ~1));
                        ret->data[i] = arr_elem_conv;
                }
@@ -5569,14 +5534,6 @@ static inline LDKCVec_EventZ CVec_EventZ_clone(const LDKCVec_EventZ *orig) {
        }
        return ret;
 }
-JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKC2Tuple_1u32TxOutZ_1new(JNIEnv *env, jclass clz, int32_t a, int64_t b) {
-       LDKC2Tuple_u32TxOutZ* ret = MALLOC(sizeof(LDKC2Tuple_u32TxOutZ), "LDKC2Tuple_u32TxOutZ");
-       ret->a = a;
-       LDKTxOut b_conv = *(LDKTxOut*)(((uint64_t)b) & ~1);
-       b_conv = TxOut_clone((LDKTxOut*)(((uint64_t)b) & ~1));
-       ret->b = b_conv;
-       return (uint64_t)ret;
-}
 static inline uint32_t C2Tuple_u32TxOutZ_get_a(LDKC2Tuple_u32TxOutZ *NONNULL_PTR tuple){
        return tuple->a;
 }
@@ -5606,7 +5563,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCVec_1C2Tuple_1u32TxOutZ
                int64_t *java_elems = (*env)->GetPrimitiveArrayCritical(env, elems, NULL);
                for (size_t i = 0; i < ret->datalen; i++) {
                        int64_t arr_elem = java_elems[i];
-                       LDKC2Tuple_u32TxOutZ arr_elem_conv = *(LDKC2Tuple_u32TxOutZ*)(((uint64_t)arr_elem) & ~1);
+                       void* arr_elem_ptr = (void*)(((uint64_t)arr_elem) & ~1);
+                       CHECK_ACCESS(arr_elem_ptr);
+                       LDKC2Tuple_u32TxOutZ arr_elem_conv = *(LDKC2Tuple_u32TxOutZ*)(arr_elem_ptr);
                        arr_elem_conv = C2Tuple_u32TxOutZ_clone((LDKC2Tuple_u32TxOutZ*)(((uint64_t)arr_elem) & ~1));
                        ret->data[i] = arr_elem_conv;
                }
@@ -5621,29 +5580,6 @@ static inline LDKCVec_C2Tuple_u32TxOutZZ CVec_C2Tuple_u32TxOutZZ_clone(const LDK
        }
        return ret;
 }
-JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKC2Tuple_1TxidCVec_1C2Tuple_1u32TxOutZZZ_1new(JNIEnv *env, jclass clz, int8_tArray a, int64_tArray b) {
-       LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ* ret = MALLOC(sizeof(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ), "LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ");
-       LDKThirtyTwoBytes a_ref;
-       CHECK((*env)->GetArrayLength(env, a) == 32);
-       (*env)->GetByteArrayRegion(env, a, 0, 32, a_ref.data);
-       ret->a = a_ref;
-       LDKCVec_C2Tuple_u32TxOutZZ b_constr;
-       b_constr.datalen = (*env)->GetArrayLength(env, b);
-       if (b_constr.datalen > 0)
-               b_constr.data = MALLOC(b_constr.datalen * sizeof(LDKC2Tuple_u32TxOutZ), "LDKCVec_C2Tuple_u32TxOutZZ Elements");
-       else
-               b_constr.data = NULL;
-       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];
-               LDKC2Tuple_u32TxOutZ b_conv_20_conv = *(LDKC2Tuple_u32TxOutZ*)(((uint64_t)b_conv_20) & ~1);
-               b_conv_20_conv = C2Tuple_u32TxOutZ_clone((LDKC2Tuple_u32TxOutZ*)(((uint64_t)b_conv_20) & ~1));
-               b_constr.data[u] = b_conv_20_conv;
-       }
-       (*env)->ReleaseLongArrayElements(env, b, b_vals, 0);
-       ret->b = b_constr;
-       return (uint64_t)ret;
-}
 static inline struct LDKThirtyTwoBytes C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_get_a(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ *NONNULL_PTR tuple){
        return ThirtyTwoBytes_clone(&tuple->a);
 }
@@ -5682,7 +5618,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCVec_1C2Tuple_1TxidCVec_
                int64_t *java_elems = (*env)->GetPrimitiveArrayCritical(env, elems, NULL);
                for (size_t i = 0; i < ret->datalen; i++) {
                        int64_t arr_elem = java_elems[i];
-                       LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ arr_elem_conv = *(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ*)(((uint64_t)arr_elem) & ~1);
+                       void* arr_elem_ptr = (void*)(((uint64_t)arr_elem) & ~1);
+                       CHECK_ACCESS(arr_elem_ptr);
+                       LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ arr_elem_conv = *(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ*)(arr_elem_ptr);
                        arr_elem_conv = C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_clone((LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ*)(((uint64_t)arr_elem) & ~1));
                        ret->data[i] = arr_elem_conv;
                }
@@ -5755,7 +5693,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCVec_1BalanceZ_1new(JNIE
                int64_t *java_elems = (*env)->GetPrimitiveArrayCritical(env, elems, NULL);
                for (size_t i = 0; i < ret->datalen; i++) {
                        int64_t arr_elem = java_elems[i];
-                       LDKBalance arr_elem_conv = *(LDKBalance*)(((uint64_t)arr_elem) & ~1);
+                       void* arr_elem_ptr = (void*)(((uint64_t)arr_elem) & ~1);
+                       CHECK_ACCESS(arr_elem_ptr);
+                       LDKBalance arr_elem_conv = *(LDKBalance*)(arr_elem_ptr);
                        arr_elem_conv = Balance_clone((LDKBalance*)(((uint64_t)arr_elem) & ~1));
                        ret->data[i] = arr_elem_conv;
                }
@@ -5807,17 +5747,6 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCResult_1NoneLightningEr
        uint64_t err_ref = (uint64_t)err_var.inner & ~1;
        return err_ref;
 }
-JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKC2Tuple_1PublicKeyTypeZ_1new(JNIEnv *env, jclass clz, int8_tArray a, int64_t b) {
-       LDKC2Tuple_PublicKeyTypeZ* ret = MALLOC(sizeof(LDKC2Tuple_PublicKeyTypeZ), "LDKC2Tuple_PublicKeyTypeZ");
-       LDKPublicKey a_ref;
-       CHECK((*env)->GetArrayLength(env, a) == 33);
-       (*env)->GetByteArrayRegion(env, a, 0, 33, a_ref.compressed_form);
-       ret->a = a_ref;
-       LDKType b_conv = *(LDKType*)(((uint64_t)b) & ~1);
-       b_conv = Type_clone(&b_conv);
-       ret->b = b_conv;
-       return (uint64_t)ret;
-}
 static inline struct LDKPublicKey C2Tuple_PublicKeyTypeZ_get_a(LDKC2Tuple_PublicKeyTypeZ *NONNULL_PTR tuple){
        return tuple->a;
 }
@@ -5848,7 +5777,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCVec_1C2Tuple_1PublicKey
                int64_t *java_elems = (*env)->GetPrimitiveArrayCritical(env, elems, NULL);
                for (size_t i = 0; i < ret->datalen; i++) {
                        int64_t arr_elem = java_elems[i];
-                       LDKC2Tuple_PublicKeyTypeZ arr_elem_conv = *(LDKC2Tuple_PublicKeyTypeZ*)(((uint64_t)arr_elem) & ~1);
+                       void* arr_elem_ptr = (void*)(((uint64_t)arr_elem) & ~1);
+                       CHECK_ACCESS(arr_elem_ptr);
+                       LDKC2Tuple_PublicKeyTypeZ arr_elem_conv = *(LDKC2Tuple_PublicKeyTypeZ*)(arr_elem_ptr);
                        arr_elem_conv = C2Tuple_PublicKeyTypeZ_clone((LDKC2Tuple_PublicKeyTypeZ*)(((uint64_t)arr_elem) & ~1));
                        ret->data[i] = arr_elem_conv;
                }
@@ -5880,25 +5811,6 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCResult_1boolLightningEr
        uint64_t err_ref = (uint64_t)err_var.inner & ~1;
        return err_ref;
 }
-JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKC3Tuple_1ChannelAnnouncementChannelUpdateChannelUpdateZ_1new(JNIEnv *env, jclass clz, int64_t a, int64_t b, int64_t c) {
-       LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ* ret = MALLOC(sizeof(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ), "LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ");
-       LDKChannelAnnouncement a_conv;
-       a_conv.inner = (void*)(a & (~1));
-       a_conv.is_owned = (a & 1) || (a == 0);
-       a_conv = ChannelAnnouncement_clone(&a_conv);
-       ret->a = a_conv;
-       LDKChannelUpdate b_conv;
-       b_conv.inner = (void*)(b & (~1));
-       b_conv.is_owned = (b & 1) || (b == 0);
-       b_conv = ChannelUpdate_clone(&b_conv);
-       ret->b = b_conv;
-       LDKChannelUpdate c_conv;
-       c_conv.inner = (void*)(c & (~1));
-       c_conv.is_owned = (c & 1) || (c == 0);
-       c_conv = ChannelUpdate_clone(&c_conv);
-       ret->c = c_conv;
-       return (uint64_t)ret;
-}
 static inline struct LDKChannelAnnouncement C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_get_a(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ *NONNULL_PTR tuple){
        return ChannelAnnouncement_clone(&tuple->a);
 }
@@ -5954,7 +5866,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCVec_1C3Tuple_1ChannelAn
                int64_t *java_elems = (*env)->GetPrimitiveArrayCritical(env, elems, NULL);
                for (size_t i = 0; i < ret->datalen; i++) {
                        int64_t arr_elem = java_elems[i];
-                       LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ arr_elem_conv = *(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(((uint64_t)arr_elem) & ~1);
+                       void* arr_elem_ptr = (void*)(((uint64_t)arr_elem) & ~1);
+                       CHECK_ACCESS(arr_elem_ptr);
+                       LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ arr_elem_conv = *(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(arr_elem_ptr);
                        arr_elem_conv = C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_clone((LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(((uint64_t)arr_elem) & ~1));
                        ret->data[i] = arr_elem_conv;
                }
@@ -6112,7 +6026,9 @@ 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.");
        }
-       LDKCResult_TxOutAccessErrorZ ret_conv = *(LDKCResult_TxOutAccessErrorZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_TxOutAccessErrorZ ret_conv = *(LDKCResult_TxOutAccessErrorZ*)(ret_ptr);
        ret_conv = CResult_TxOutAccessErrorZ_clone((LDKCResult_TxOutAccessErrorZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -6146,7 +6062,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKAccess_1new(JNIEnv *env,
        return (uint64_t)res_ptr;
 }
 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) {
-       LDKAccess* this_arg_conv = (LDKAccess*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
        (*env)->GetByteArrayRegion(env, genesis_hash, 0, 32, genesis_hash_arr);
@@ -7324,7 +7242,9 @@ 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.");
        }
-       LDKCOption_C2Tuple_usizeTransactionZZ ret_conv = *(LDKCOption_C2Tuple_usizeTransactionZZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCOption_C2Tuple_usizeTransactionZZ ret_conv = *(LDKCOption_C2Tuple_usizeTransactionZZ*)(ret_ptr);
        ret_conv = COption_C2Tuple_usizeTransactionZZ_clone((LDKCOption_C2Tuple_usizeTransactionZZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -7361,7 +7281,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKFilter_1new(JNIEnv *env,
        return (uint64_t)res_ptr;
 }
 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) {
-       LDKFilter* this_arg_conv = (LDKFilter*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       LDKFilter* this_arg_conv = (LDKFilter*)this_arg_ptr;
        unsigned char txid_arr[32];
        CHECK((*env)->GetArrayLength(env, txid) == 32);
        (*env)->GetByteArrayRegion(env, txid, 0, 32, txid_arr);
@@ -7374,7 +7296,9 @@ 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) {
-       LDKFilter* this_arg_conv = (LDKFilter*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -7512,7 +7436,9 @@ 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];
-               LDKMessageSendEvent ret_conv_18_conv = *(LDKMessageSendEvent*)(((uint64_t)ret_conv_18) & ~1);
+               void* ret_conv_18_ptr = (void*)(((uint64_t)ret_conv_18) & ~1);
+               CHECK_ACCESS(ret_conv_18_ptr);
+               LDKMessageSendEvent ret_conv_18_conv = *(LDKMessageSendEvent*)(ret_conv_18_ptr);
                ret_conv_18_conv = MessageSendEvent_clone((LDKMessageSendEvent*)(((uint64_t)ret_conv_18) & ~1));
                ret_constr.data[s] = ret_conv_18_conv;
        }
@@ -7549,13 +7475,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKMessageSendEventsProvide
        return (uint64_t)res_ptr;
 }
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_MessageSendEventsProvider_1get_1and_1clear_1pending_1msg_1events(JNIEnv *env, jclass clz, int64_t this_arg) {
-       LDKMessageSendEventsProvider* this_arg_conv = (LDKMessageSendEventsProvider*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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 = (*env)->NewLongArray(env, ret_var.datalen);
        int64_t *ret_arr_ptr = (*env)->GetPrimitiveArrayCritical(env, ret_arr, NULL);
        for (size_t s = 0; s < ret_var.datalen; s++) {
                LDKMessageSendEvent *ret_conv_18_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
-               *ret_conv_18_copy = MessageSendEvent_clone(&ret_var.data[s]);
+               *ret_conv_18_copy = ret_var.data[s];
                uint64_t ret_conv_18_ref = (uint64_t)ret_conv_18_copy;
                ret_arr_ptr[s] = ret_conv_18_ref;
        }
@@ -7636,7 +7564,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKEventHandler_1new(JNIEnv
        return (uint64_t)res_ptr;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_EventHandler_1handle_1event(JNIEnv *env, jclass clz, int64_t this_arg, int64_t event) {
-       LDKEventHandler* this_arg_conv = (LDKEventHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       LDKEventHandler* this_arg_conv = (LDKEventHandler*)this_arg_ptr;
        LDKEvent* event_conv = (LDKEvent*)event;
        (this_arg_conv->handle_event)(this_arg_conv->this_arg, event_conv);
 }
@@ -7713,8 +7643,12 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKEventsProvider_1new(JNIE
        return (uint64_t)res_ptr;
 }
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_EventsProvider_1process_1pending_1events(JNIEnv *env, jclass clz, int64_t this_arg, int64_t handler) {
-       LDKEventsProvider* this_arg_conv = (LDKEventsProvider*)(((uint64_t)this_arg) & ~1);
-       LDKEventHandler handler_conv = *(LDKEventHandler*)(((uint64_t)handler) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       LDKEventsProvider* this_arg_conv = (LDKEventsProvider*)this_arg_ptr;
+       void* handler_ptr = (void*)(((uint64_t)handler) & ~1);
+       CHECK_ACCESS(handler_ptr);
+       LDKEventHandler handler_conv = *(LDKEventHandler*)(handler_ptr);
        if (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(&handler_conv);
@@ -7821,7 +7755,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKListen_1new(JNIEnv *env,
        return (uint64_t)res_ptr;
 }
 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) {
-       LDKListen* this_arg_conv = (LDKListen*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       LDKListen* this_arg_conv = (LDKListen*)this_arg_ptr;
        LDKu8slice block_ref;
        block_ref.datalen = (*env)->GetArrayLength(env, block);
        block_ref.data = (*env)->GetByteArrayElements (env, block, NULL);
@@ -7830,7 +7766,9 @@ 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) {
-       LDKListen* this_arg_conv = (LDKListen*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       LDKListen* this_arg_conv = (LDKListen*)this_arg_ptr;
        unsigned char header_arr[80];
        CHECK((*env)->GetArrayLength(env, header) == 80);
        (*env)->GetByteArrayRegion(env, header, 0, 80, header_arr);
@@ -8010,7 +7948,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKConfirm_1new(JNIEnv *env
        return (uint64_t)res_ptr;
 }
 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) {
-       LDKConfirm* this_arg_conv = (LDKConfirm*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       LDKConfirm* this_arg_conv = (LDKConfirm*)this_arg_ptr;
        unsigned char header_arr[80];
        CHECK((*env)->GetArrayLength(env, header) == 80);
        (*env)->GetByteArrayRegion(env, header, 0, 80, header_arr);
@@ -8024,7 +7964,9 @@ 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];
-               LDKC2Tuple_usizeTransactionZ txdata_conv_28_conv = *(LDKC2Tuple_usizeTransactionZ*)(((uint64_t)txdata_conv_28) & ~1);
+               void* txdata_conv_28_ptr = (void*)(((uint64_t)txdata_conv_28) & ~1);
+               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*)(((uint64_t)txdata_conv_28) & ~1));
                txdata_constr.data[c] = txdata_conv_28_conv;
        }
@@ -8033,7 +7975,9 @@ 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) {
-       LDKConfirm* this_arg_conv = (LDKConfirm*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       LDKConfirm* this_arg_conv = (LDKConfirm*)this_arg_ptr;
        unsigned char txid_arr[32];
        CHECK((*env)->GetArrayLength(env, txid) == 32);
        (*env)->GetByteArrayRegion(env, txid, 0, 32, txid_arr);
@@ -8042,7 +7986,9 @@ 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) {
-       LDKConfirm* this_arg_conv = (LDKConfirm*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       LDKConfirm* this_arg_conv = (LDKConfirm*)this_arg_ptr;
        unsigned char header_arr[80];
        CHECK((*env)->GetArrayLength(env, header) == 80);
        (*env)->GetByteArrayRegion(env, header, 0, 80, header_arr);
@@ -8051,7 +7997,9 @@ 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) {
-       LDKConfirm* this_arg_conv = (LDKConfirm*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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 = (*env)->NewObjectArray(env, ret_var.datalen, arr_of_B_clz, NULL);
        ;
@@ -8119,7 +8067,9 @@ 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.");
        }
-       LDKCResult_NoneChannelMonitorUpdateErrZ ret_conv = *(LDKCResult_NoneChannelMonitorUpdateErrZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_NoneChannelMonitorUpdateErrZ ret_conv = *(LDKCResult_NoneChannelMonitorUpdateErrZ*)(ret_ptr);
        ret_conv = CResult_NoneChannelMonitorUpdateErrZ_clone((LDKCResult_NoneChannelMonitorUpdateErrZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -8165,7 +8115,9 @@ 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.");
        }
-       LDKCResult_NoneChannelMonitorUpdateErrZ ret_conv = *(LDKCResult_NoneChannelMonitorUpdateErrZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_NoneChannelMonitorUpdateErrZ ret_conv = *(LDKCResult_NoneChannelMonitorUpdateErrZ*)(ret_ptr);
        ret_conv = CResult_NoneChannelMonitorUpdateErrZ_clone((LDKCResult_NoneChannelMonitorUpdateErrZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -8202,7 +8154,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKPersist_1new(JNIEnv *env
        return (uint64_t)res_ptr;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Persist_1persist_1new_1channel(JNIEnv *env, jclass clz, int64_t this_arg, int64_t id, int64_t data) {
-       LDKPersist* this_arg_conv = (LDKPersist*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       LDKPersist* this_arg_conv = (LDKPersist*)this_arg_ptr;
        LDKOutPoint id_conv;
        id_conv.inner = (void*)(id & (~1));
        id_conv.is_owned = (id & 1) || (id == 0);
@@ -8216,7 +8170,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Persist_1persist_1new_1chan
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Persist_1update_1persisted_1channel(JNIEnv *env, jclass clz, int64_t this_arg, int64_t id, int64_t update, int64_t data) {
-       LDKPersist* this_arg_conv = (LDKPersist*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       LDKPersist* this_arg_conv = (LDKPersist*)this_arg_ptr;
        LDKOutPoint id_conv;
        id_conv.inner = (void*)(id & (~1));
        id_conv.is_owned = (id & 1) || (id == 0);
@@ -8982,7 +8938,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKChannelMessageHandler_1g
        return (int64_t)(res_ptr | 1);
 }
 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) {
-       LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -8997,7 +8955,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_
 }
 
 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) {
-       LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -9012,7 +8972,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_
 }
 
 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) {
-       LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -9023,7 +8985,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_
 }
 
 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) {
-       LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -9034,7 +8998,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_1funding_1locked(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t msg) {
-       LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -9045,7 +9011,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_
 }
 
 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) {
-       LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -9059,7 +9027,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_
 }
 
 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) {
-       LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -9070,7 +9040,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_
 }
 
 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) {
-       LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -9081,7 +9053,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_
 }
 
 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) {
-       LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -9092,7 +9066,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_
 }
 
 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) {
-       LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -9103,7 +9079,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_
 }
 
 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) {
-       LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -9114,7 +9092,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_
 }
 
 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) {
-       LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -9125,7 +9105,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_
 }
 
 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) {
-       LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -9136,7 +9118,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_
 }
 
 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) {
-       LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -9147,7 +9131,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_
 }
 
 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) {
-       LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -9158,7 +9144,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_
 }
 
 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) {
-       LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -9166,7 +9154,9 @@ 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) {
-       LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -9177,7 +9167,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1peer_1c
 }
 
 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) {
-       LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -9188,7 +9180,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_
 }
 
 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) {
-       LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -9199,7 +9193,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1handle_
 }
 
 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) {
-       LDKChannelMessageHandler* this_arg_conv = (LDKChannelMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -9266,7 +9262,9 @@ 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.");
        }
-       LDKCResult_boolLightningErrorZ ret_conv = *(LDKCResult_boolLightningErrorZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_boolLightningErrorZ ret_conv = *(LDKCResult_boolLightningErrorZ*)(ret_ptr);
        ret_conv = CResult_boolLightningErrorZ_clone((LDKCResult_boolLightningErrorZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -9297,7 +9295,9 @@ 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.");
        }
-       LDKCResult_boolLightningErrorZ ret_conv = *(LDKCResult_boolLightningErrorZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_boolLightningErrorZ ret_conv = *(LDKCResult_boolLightningErrorZ*)(ret_ptr);
        ret_conv = CResult_boolLightningErrorZ_clone((LDKCResult_boolLightningErrorZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -9328,7 +9328,9 @@ 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.");
        }
-       LDKCResult_boolLightningErrorZ ret_conv = *(LDKCResult_boolLightningErrorZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_boolLightningErrorZ ret_conv = *(LDKCResult_boolLightningErrorZ*)(ret_ptr);
        ret_conv = CResult_boolLightningErrorZ_clone((LDKCResult_boolLightningErrorZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -9360,7 +9362,9 @@ 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];
-               LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ ret_conv_59_conv = *(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(((uint64_t)ret_conv_59) & ~1);
+               void* ret_conv_59_ptr = (void*)(((uint64_t)ret_conv_59) & ~1);
+               CHECK_ACCESS(ret_conv_59_ptr);
+               LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ ret_conv_59_conv = *(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(ret_conv_59_ptr);
                ret_conv_59_conv = C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_clone((LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(((uint64_t)ret_conv_59) & ~1));
                ret_constr.data[h] = ret_conv_59_conv;
        }
@@ -9464,7 +9468,9 @@ 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.");
        }
-       LDKCResult_NoneLightningErrorZ ret_conv = *(LDKCResult_NoneLightningErrorZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_NoneLightningErrorZ ret_conv = *(LDKCResult_NoneLightningErrorZ*)(ret_ptr);
        ret_conv = CResult_NoneLightningErrorZ_clone((LDKCResult_NoneLightningErrorZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -9496,7 +9502,9 @@ 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.");
        }
-       LDKCResult_NoneLightningErrorZ ret_conv = *(LDKCResult_NoneLightningErrorZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_NoneLightningErrorZ ret_conv = *(LDKCResult_NoneLightningErrorZ*)(ret_ptr);
        ret_conv = CResult_NoneLightningErrorZ_clone((LDKCResult_NoneLightningErrorZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -9528,7 +9536,9 @@ 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.");
        }
-       LDKCResult_NoneLightningErrorZ ret_conv = *(LDKCResult_NoneLightningErrorZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_NoneLightningErrorZ ret_conv = *(LDKCResult_NoneLightningErrorZ*)(ret_ptr);
        ret_conv = CResult_NoneLightningErrorZ_clone((LDKCResult_NoneLightningErrorZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -9560,7 +9570,9 @@ 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.");
        }
-       LDKCResult_NoneLightningErrorZ ret_conv = *(LDKCResult_NoneLightningErrorZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_NoneLightningErrorZ ret_conv = *(LDKCResult_NoneLightningErrorZ*)(ret_ptr);
        ret_conv = CResult_NoneLightningErrorZ_clone((LDKCResult_NoneLightningErrorZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -9630,7 +9642,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKRoutingMessageHandler_1g
        return (int64_t)(res_ptr | 1);
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_1handle_1node_1announcement(JNIEnv *env, jclass clz, int64_t this_arg, int64_t msg) {
-       LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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;
@@ -9640,7 +9654,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_1hand
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_1handle_1channel_1announcement(JNIEnv *env, jclass clz, int64_t this_arg, int64_t msg) {
-       LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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;
@@ -9650,7 +9666,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_1hand
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_1handle_1channel_1update(JNIEnv *env, jclass clz, int64_t this_arg, int64_t msg) {
-       LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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;
@@ -9660,7 +9678,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_1hand
 }
 
 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) {
-       LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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 = (*env)->NewLongArray(env, ret_var.datalen);
        int64_t *ret_arr_ptr = (*env)->GetPrimitiveArrayCritical(env, ret_arr, NULL);
@@ -9675,7 +9695,9 @@ 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) {
-       LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)this_arg_ptr;
        LDKPublicKey starting_point_ref;
        CHECK((*env)->GetArrayLength(env, starting_point) == 33);
        (*env)->GetByteArrayRegion(env, starting_point, 0, 33, starting_point_ref.compressed_form);
@@ -9698,7 +9720,9 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_1sync_1routing_1table(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray their_node_id, int64_t init) {
-       LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -9709,7 +9733,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_1sync_1r
 }
 
 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) {
-       LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -9723,7 +9749,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_1hand
 }
 
 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) {
-       LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -9737,7 +9765,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_1hand
 }
 
 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) {
-       LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -9751,7 +9781,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RoutingMessageHandler_1hand
 }
 
 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) {
-       LDKRoutingMessageHandler* this_arg_conv = (LDKRoutingMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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);
@@ -9806,7 +9838,9 @@ 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.");
        }
-       LDKCResult_COption_TypeZDecodeErrorZ ret_conv = *(LDKCResult_COption_TypeZDecodeErrorZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_COption_TypeZDecodeErrorZ ret_conv = *(LDKCResult_COption_TypeZDecodeErrorZ*)(ret_ptr);
        ret_conv = CResult_COption_TypeZDecodeErrorZ_clone((LDKCResult_COption_TypeZDecodeErrorZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -9840,7 +9874,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCustomMessageReader_1new
        return (uint64_t)res_ptr;
 }
 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) {
-       LDKCustomMessageReader* this_arg_conv = (LDKCustomMessageReader*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       LDKCustomMessageReader* this_arg_conv = (LDKCustomMessageReader*)this_arg_ptr;
        LDKu8slice buffer_ref;
        buffer_ref.datalen = (*env)->GetArrayLength(env, buffer);
        buffer_ref.data = (*env)->GetByteArrayElements (env, buffer, NULL);
@@ -9895,7 +9931,9 @@ LDKCResult_NoneLightningErrorZ handle_custom_message_LDKCustomMessageHandler_jca
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to handle_custom_message in LDKCustomMessageHandler from rust threw an exception.");
        }
-       LDKCResult_NoneLightningErrorZ ret_conv = *(LDKCResult_NoneLightningErrorZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_NoneLightningErrorZ ret_conv = *(LDKCResult_NoneLightningErrorZ*)(ret_ptr);
        ret_conv = CResult_NoneLightningErrorZ_clone((LDKCResult_NoneLightningErrorZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -9927,7 +9965,9 @@ 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];
-               LDKC2Tuple_PublicKeyTypeZ ret_conv_25_conv = *(LDKC2Tuple_PublicKeyTypeZ*)(((uint64_t)ret_conv_25) & ~1);
+               void* ret_conv_25_ptr = (void*)(((uint64_t)ret_conv_25) & ~1);
+               CHECK_ACCESS(ret_conv_25_ptr);
+               LDKC2Tuple_PublicKeyTypeZ ret_conv_25_conv = *(LDKC2Tuple_PublicKeyTypeZ*)(ret_conv_25_ptr);
                ret_conv_25_conv = C2Tuple_PublicKeyTypeZ_clone((LDKC2Tuple_PublicKeyTypeZ*)(((uint64_t)ret_conv_25) & ~1));
                ret_constr.data[z] = ret_conv_25_conv;
        }
@@ -9976,8 +10016,12 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCustomMessageHandler_1ge
        return (int64_t)(res_ptr | 1);
 }
 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) {
-       LDKCustomMessageHandler* this_arg_conv = (LDKCustomMessageHandler*)(((uint64_t)this_arg) & ~1);
-       LDKType msg_conv = *(LDKType*)(((uint64_t)msg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       LDKCustomMessageHandler* this_arg_conv = (LDKCustomMessageHandler*)this_arg_ptr;
+       void* msg_ptr = (void*)(((uint64_t)msg) & ~1);
+       CHECK_ACCESS(msg_ptr);
+       LDKType msg_conv = *(LDKType*)(msg_ptr);
        if (msg_conv.free == LDKType_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKType_JCalls_cloned(&msg_conv);
@@ -9991,7 +10035,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CustomMessageHandler_1handl
 }
 
 JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_CustomMessageHandler_1get_1and_1clear_1pending_1msg(JNIEnv *env, jclass clz, int64_t this_arg) {
-       LDKCustomMessageHandler* this_arg_conv = (LDKCustomMessageHandler*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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 = (*env)->NewLongArray(env, ret_var.datalen);
        int64_t *ret_arr_ptr = (*env)->GetPrimitiveArrayCritical(env, ret_arr, NULL);
@@ -10156,7 +10202,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKSocketDescriptor_1new(JN
        return (uint64_t)res_ptr;
 }
 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) {
-       LDKSocketDescriptor* this_arg_conv = (LDKSocketDescriptor*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       LDKSocketDescriptor* this_arg_conv = (LDKSocketDescriptor*)this_arg_ptr;
        LDKu8slice data_ref;
        data_ref.datalen = (*env)->GetArrayLength(env, data);
        data_ref.data = (*env)->GetByteArrayElements (env, data, NULL);
@@ -10166,12 +10214,16 @@ 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) {
-       LDKSocketDescriptor* this_arg_conv = (LDKSocketDescriptor*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { 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) {
-       LDKSocketDescriptor* this_arg_conv = (LDKSocketDescriptor*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       LDKSocketDescriptor* this_arg_conv = (LDKSocketDescriptor*)this_arg_ptr;
        int64_t ret_val = (this_arg_conv->hash)(this_arg_conv->this_arg);
        return ret_val;
 }
@@ -10247,7 +10299,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKScore_1new(JNIEnv *env,
        return (uint64_t)res_ptr;
 }
 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) {
-       LDKScore* this_arg_conv = (LDKScore*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       LDKScore* this_arg_conv = (LDKScore*)this_arg_ptr;
        int64_t ret_val = (this_arg_conv->channel_penalty_msat)(this_arg_conv->this_arg, short_channel_id);
        return ret_val;
 }
@@ -10299,7 +10353,9 @@ LDKCResult_NoneErrorZ persist_manager_LDKChannelManagerPersister_jcall(const voi
                (*env)->ExceptionDescribe(env);
                (*env)->FatalError(env, "A call to persist_manager in LDKChannelManagerPersister from rust threw an exception.");
        }
-       LDKCResult_NoneErrorZ ret_conv = *(LDKCResult_NoneErrorZ*)(((uint64_t)ret) & ~1);
+       void* ret_ptr = (void*)(((uint64_t)ret) & ~1);
+       CHECK_ACCESS(ret_ptr);
+       LDKCResult_NoneErrorZ ret_conv = *(LDKCResult_NoneErrorZ*)(ret_ptr);
        ret_conv = CResult_NoneErrorZ_clone((LDKCResult_NoneErrorZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
@@ -10333,7 +10389,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKChannelManagerPersister_
        return (uint64_t)res_ptr;
 }
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManagerPersister_1persist_1manager(JNIEnv *env, jclass clz, int64_t this_arg, int64_t channel_manager) {
-       LDKChannelManagerPersister* this_arg_conv = (LDKChannelManagerPersister*)(((uint64_t)this_arg) & ~1);
+       void* this_arg_ptr = (void*)(((uint64_t)this_arg) & ~1);
+       if (!(this_arg & 1)) { CHECK_ACCESS(this_arg_ptr); }
+       LDKChannelManagerPersister* this_arg_conv = (LDKChannelManagerPersister*)this_arg_ptr;
        LDKChannelManager channel_manager_conv;
        channel_manager_conv.inner = (void*)(channel_manager & (~1));
        channel_manager_conv.is_owned = false;
@@ -10423,7 +10481,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_TxOut_1new(JNIEnv *env, jcl
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_TxOut_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKTxOut _res_conv = *(LDKTxOut*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKTxOut _res_conv = *(LDKTxOut*)(_res_ptr);
        FREE((void*)_res);
        TxOut_free(_res_conv);
 }
@@ -10458,7 +10518,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SecretKeyErrorZ_1e
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1SecretKeyErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_SecretKeyErrorZ _res_conv = *(LDKCResult_SecretKeyErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_SecretKeyErrorZ _res_conv = *(LDKCResult_SecretKeyErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_SecretKeyErrorZ_free(_res_conv);
 }
@@ -10481,7 +10543,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PublicKeyErrorZ_1e
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PublicKeyErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_PublicKeyErrorZ _res_conv = *(LDKCResult_PublicKeyErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_PublicKeyErrorZ _res_conv = *(LDKCResult_PublicKeyErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_PublicKeyErrorZ_free(_res_conv);
 }
@@ -10515,7 +10579,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TxCreationKeysDeco
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1TxCreationKeysDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_TxCreationKeysDecodeErrorZ _res_conv = *(LDKCResult_TxCreationKeysDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_TxCreationKeysDecodeErrorZ _res_conv = *(LDKCResult_TxCreationKeysDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_TxCreationKeysDecodeErrorZ_free(_res_conv);
 }
@@ -10549,7 +10615,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelPublicKeysD
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelPublicKeysDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_ChannelPublicKeysDecodeErrorZ _res_conv = *(LDKCResult_ChannelPublicKeysDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_ChannelPublicKeysDecodeErrorZ _res_conv = *(LDKCResult_ChannelPublicKeysDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_ChannelPublicKeysDecodeErrorZ_free(_res_conv);
 }
@@ -10580,7 +10648,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TxCreationKeysErro
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1TxCreationKeysErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_TxCreationKeysErrorZ _res_conv = *(LDKCResult_TxCreationKeysErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_TxCreationKeysErrorZ _res_conv = *(LDKCResult_TxCreationKeysErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_TxCreationKeysErrorZ_free(_res_conv);
 }
@@ -10608,7 +10678,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1u32Z_1none(JNIEnv
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1u32Z_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCOption_u32Z _res_conv = *(LDKCOption_u32Z*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCOption_u32Z _res_conv = *(LDKCOption_u32Z*)(_res_ptr);
        FREE((void*)_res);
        COption_u32Z_free(_res_conv);
 }
@@ -10643,7 +10715,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1HTLCOutputInCommit
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1HTLCOutputInCommitmentDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_HTLCOutputInCommitmentDecodeErrorZ _res_conv = *(LDKCResult_HTLCOutputInCommitmentDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_HTLCOutputInCommitmentDecodeErrorZ _res_conv = *(LDKCResult_HTLCOutputInCommitmentDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_HTLCOutputInCommitmentDecodeErrorZ_free(_res_conv);
 }
@@ -10677,7 +10751,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyChanne
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1CounterpartyChannelTransactionParametersDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ _res_conv = *(LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ _res_conv = *(LDKCResult_CounterpartyChannelTransactionParametersDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_CounterpartyChannelTransactionParametersDecodeErrorZ_free(_res_conv);
 }
@@ -10711,7 +10787,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelTransaction
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelTransactionParametersDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_ChannelTransactionParametersDecodeErrorZ _res_conv = *(LDKCResult_ChannelTransactionParametersDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_ChannelTransactionParametersDecodeErrorZ _res_conv = *(LDKCResult_ChannelTransactionParametersDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_ChannelTransactionParametersDecodeErrorZ_free(_res_conv);
 }
@@ -10762,7 +10840,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1HolderCommitmentTr
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1HolderCommitmentTransactionDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_HolderCommitmentTransactionDecodeErrorZ _res_conv = *(LDKCResult_HolderCommitmentTransactionDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_HolderCommitmentTransactionDecodeErrorZ _res_conv = *(LDKCResult_HolderCommitmentTransactionDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_HolderCommitmentTransactionDecodeErrorZ_free(_res_conv);
 }
@@ -10796,7 +10876,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1BuiltCommitmentTra
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1BuiltCommitmentTransactionDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_BuiltCommitmentTransactionDecodeErrorZ _res_conv = *(LDKCResult_BuiltCommitmentTransactionDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_BuiltCommitmentTransactionDecodeErrorZ _res_conv = *(LDKCResult_BuiltCommitmentTransactionDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_BuiltCommitmentTransactionDecodeErrorZ_free(_res_conv);
 }
@@ -10826,7 +10908,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TrustedClosingTran
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1TrustedClosingTransactionNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_TrustedClosingTransactionNoneZ _res_conv = *(LDKCResult_TrustedClosingTransactionNoneZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_TrustedClosingTransactionNoneZ _res_conv = *(LDKCResult_TrustedClosingTransactionNoneZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_TrustedClosingTransactionNoneZ_free(_res_conv);
 }
@@ -10853,7 +10937,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CommitmentTransact
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1CommitmentTransactionDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_CommitmentTransactionDecodeErrorZ _res_conv = *(LDKCResult_CommitmentTransactionDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_CommitmentTransactionDecodeErrorZ _res_conv = *(LDKCResult_CommitmentTransactionDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_CommitmentTransactionDecodeErrorZ_free(_res_conv);
 }
@@ -10883,7 +10969,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TrustedCommitmentT
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1TrustedCommitmentTransactionNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_TrustedCommitmentTransactionNoneZ _res_conv = *(LDKCResult_TrustedCommitmentTransactionNoneZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_TrustedCommitmentTransactionNoneZ _res_conv = *(LDKCResult_TrustedCommitmentTransactionNoneZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_TrustedCommitmentTransactionNoneZ_free(_res_conv);
 }
@@ -10915,7 +11003,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1SignatureZNo
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1SignatureZNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_CVec_SignatureZNoneZ _res_conv = *(LDKCResult_CVec_SignatureZNoneZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_CVec_SignatureZNoneZ _res_conv = *(LDKCResult_CVec_SignatureZNoneZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_CVec_SignatureZNoneZ_free(_res_conv);
 }
@@ -10949,7 +11039,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownScriptDeco
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownScriptDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_ShutdownScriptDecodeErrorZ _res_conv = *(LDKCResult_ShutdownScriptDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_ShutdownScriptDecodeErrorZ _res_conv = *(LDKCResult_ShutdownScriptDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_ShutdownScriptDecodeErrorZ_free(_res_conv);
 }
@@ -10975,7 +11067,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownScriptInva
        LDKInvalidShutdownScript e_conv;
        e_conv.inner = (void*)(e & (~1));
        e_conv.is_owned = (e & 1) || (e == 0);
-       // Warning: we need a move here but no clone is available for LDKInvalidShutdownScript
+       e_conv = InvalidShutdownScript_clone(&e_conv);
        LDKCResult_ShutdownScriptInvalidShutdownScriptZ* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownScriptInvalidShutdownScriptZ), "LDKCResult_ShutdownScriptInvalidShutdownScriptZ");
        *ret_conv = CResult_ShutdownScriptInvalidShutdownScriptZ_err(e_conv);
        return (uint64_t)ret_conv;
@@ -10983,11 +11075,20 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownScriptInva
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownScriptInvalidShutdownScriptZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_ShutdownScriptInvalidShutdownScriptZ _res_conv = *(LDKCResult_ShutdownScriptInvalidShutdownScriptZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_ShutdownScriptInvalidShutdownScriptZ _res_conv = *(LDKCResult_ShutdownScriptInvalidShutdownScriptZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_ShutdownScriptInvalidShutdownScriptZ_free(_res_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* ret_conv = MALLOC(sizeof(LDKCResult_ShutdownScriptInvalidShutdownScriptZ), "LDKCResult_ShutdownScriptInvalidShutdownScriptZ");
+       *ret_conv = CResult_ShutdownScriptInvalidShutdownScriptZ_clone(orig_conv);
+       return (uint64_t)ret_conv;
+}
+
 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();
@@ -11003,7 +11104,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneErrorZ_1err(JN
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NoneErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_NoneErrorZ _res_conv = *(LDKCResult_NoneErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_NoneErrorZ _res_conv = *(LDKCResult_NoneErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_NoneErrorZ_free(_res_conv);
 }
@@ -11037,7 +11140,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHopDecodeErro
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1RouteHopDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_RouteHopDecodeErrorZ _res_conv = *(LDKCResult_RouteHopDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_RouteHopDecodeErrorZ _res_conv = *(LDKCResult_RouteHopDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_RouteHopDecodeErrorZ_free(_res_conv);
 }
@@ -11119,7 +11224,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteDecodeErrorZ_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1RouteDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_RouteDecodeErrorZ _res_conv = *(LDKCResult_RouteDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_RouteDecodeErrorZ _res_conv = *(LDKCResult_RouteDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_RouteDecodeErrorZ_free(_res_conv);
 }
@@ -11147,7 +11254,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1u64Z_1none(JNIEnv
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1u64Z_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCOption_u64Z _res_conv = *(LDKCOption_u64Z*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCOption_u64Z _res_conv = *(LDKCOption_u64Z*)(_res_ptr);
        FREE((void*)_res);
        COption_u64Z_free(_res_conv);
 }
@@ -11220,7 +11329,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteLightningErro
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1RouteLightningErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_RouteLightningErrorZ _res_conv = *(LDKCResult_RouteLightningErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_RouteLightningErrorZ _res_conv = *(LDKCResult_RouteLightningErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_RouteLightningErrorZ_free(_res_conv);
 }
@@ -11233,7 +11344,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RouteLightningErro
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TxOutAccessErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKTxOut o_conv = *(LDKTxOut*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       CHECK_ACCESS(o_ptr);
+       LDKTxOut o_conv = *(LDKTxOut*)(o_ptr);
        o_conv = TxOut_clone((LDKTxOut*)(((uint64_t)o) & ~1));
        LDKCResult_TxOutAccessErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_TxOutAccessErrorZ), "LDKCResult_TxOutAccessErrorZ");
        *ret_conv = CResult_TxOutAccessErrorZ_ok(o_conv);
@@ -11249,7 +11362,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TxOutAccessErrorZ_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1TxOutAccessErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_TxOutAccessErrorZ _res_conv = *(LDKCResult_TxOutAccessErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_TxOutAccessErrorZ _res_conv = *(LDKCResult_TxOutAccessErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_TxOutAccessErrorZ_free(_res_conv);
 }
@@ -11281,7 +11396,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1usizeTransactionZ_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C2Tuple_1usizeTransactionZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKC2Tuple_usizeTransactionZ _res_conv = *(LDKC2Tuple_usizeTransactionZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKC2Tuple_usizeTransactionZ _res_conv = *(LDKC2Tuple_usizeTransactionZ*)(_res_ptr);
        FREE((void*)_res);
        C2Tuple_usizeTransactionZ_free(_res_conv);
 }
@@ -11296,7 +11413,9 @@ 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];
-               LDKC2Tuple_usizeTransactionZ _res_conv_28_conv = *(LDKC2Tuple_usizeTransactionZ*)(((uint64_t)_res_conv_28) & ~1);
+               void* _res_conv_28_ptr = (void*)(((uint64_t)_res_conv_28) & ~1);
+               CHECK_ACCESS(_res_conv_28_ptr);
+               LDKC2Tuple_usizeTransactionZ _res_conv_28_conv = *(LDKC2Tuple_usizeTransactionZ*)(_res_conv_28_ptr);
                FREE((void*)_res_conv_28);
                _res_constr.data[c] = _res_conv_28_conv;
        }
@@ -11336,7 +11455,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneChannelMonitor
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NoneChannelMonitorUpdateErrZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_NoneChannelMonitorUpdateErrZ _res_conv = *(LDKCResult_NoneChannelMonitorUpdateErrZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_NoneChannelMonitorUpdateErrZ _res_conv = *(LDKCResult_NoneChannelMonitorUpdateErrZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_NoneChannelMonitorUpdateErrZ_free(_res_conv);
 }
@@ -11358,7 +11479,9 @@ 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];
-               LDKMonitorEvent _res_conv_14_conv = *(LDKMonitorEvent*)(((uint64_t)_res_conv_14) & ~1);
+               void* _res_conv_14_ptr = (void*)(((uint64_t)_res_conv_14) & ~1);
+               CHECK_ACCESS(_res_conv_14_ptr);
+               LDKMonitorEvent _res_conv_14_conv = *(LDKMonitorEvent*)(_res_conv_14_ptr);
                FREE((void*)_res_conv_14);
                _res_constr.data[o] = _res_conv_14_conv;
        }
@@ -11367,7 +11490,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1MonitorEventZ_1free(JNIE
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1C2Tuple_1usizeTransactionZZ_1some(JNIEnv *env, jclass clz, int64_t o) {
-       LDKC2Tuple_usizeTransactionZ o_conv = *(LDKC2Tuple_usizeTransactionZ*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       CHECK_ACCESS(o_ptr);
+       LDKC2Tuple_usizeTransactionZ o_conv = *(LDKC2Tuple_usizeTransactionZ*)(o_ptr);
        o_conv = C2Tuple_usizeTransactionZ_clone((LDKC2Tuple_usizeTransactionZ*)(((uint64_t)o) & ~1));
        LDKCOption_C2Tuple_usizeTransactionZZ *ret_copy = MALLOC(sizeof(LDKCOption_C2Tuple_usizeTransactionZZ), "LDKCOption_C2Tuple_usizeTransactionZZ");
        *ret_copy = COption_C2Tuple_usizeTransactionZZ_some(o_conv);
@@ -11384,7 +11509,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1C2Tuple_1usizeTran
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1C2Tuple_1usizeTransactionZZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCOption_C2Tuple_usizeTransactionZZ _res_conv = *(LDKCOption_C2Tuple_usizeTransactionZZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCOption_C2Tuple_usizeTransactionZZ _res_conv = *(LDKCOption_C2Tuple_usizeTransactionZZ*)(_res_ptr);
        FREE((void*)_res);
        COption_C2Tuple_usizeTransactionZZ_free(_res_conv);
 }
@@ -11398,7 +11525,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1C2Tuple_1usizeTran
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1NetworkUpdateZ_1some(JNIEnv *env, jclass clz, int64_t o) {
-       LDKNetworkUpdate o_conv = *(LDKNetworkUpdate*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       CHECK_ACCESS(o_ptr);
+       LDKNetworkUpdate o_conv = *(LDKNetworkUpdate*)(o_ptr);
        o_conv = NetworkUpdate_clone((LDKNetworkUpdate*)(((uint64_t)o) & ~1));
        LDKCOption_NetworkUpdateZ *ret_copy = MALLOC(sizeof(LDKCOption_NetworkUpdateZ), "LDKCOption_NetworkUpdateZ");
        *ret_copy = COption_NetworkUpdateZ_some(o_conv);
@@ -11415,7 +11544,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1NetworkUpdateZ_1no
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1NetworkUpdateZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCOption_NetworkUpdateZ _res_conv = *(LDKCOption_NetworkUpdateZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCOption_NetworkUpdateZ _res_conv = *(LDKCOption_NetworkUpdateZ*)(_res_ptr);
        FREE((void*)_res);
        COption_NetworkUpdateZ_free(_res_conv);
 }
@@ -11438,7 +11569,9 @@ 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];
-               LDKSpendableOutputDescriptor _res_conv_27_conv = *(LDKSpendableOutputDescriptor*)(((uint64_t)_res_conv_27) & ~1);
+               void* _res_conv_27_ptr = (void*)(((uint64_t)_res_conv_27) & ~1);
+               CHECK_ACCESS(_res_conv_27_ptr);
+               LDKSpendableOutputDescriptor _res_conv_27_conv = *(LDKSpendableOutputDescriptor*)(_res_conv_27_ptr);
                FREE((void*)_res_conv_27);
                _res_constr.data[b] = _res_conv_27_conv;
        }
@@ -11456,7 +11589,9 @@ 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];
-               LDKMessageSendEvent _res_conv_18_conv = *(LDKMessageSendEvent*)(((uint64_t)_res_conv_18) & ~1);
+               void* _res_conv_18_ptr = (void*)(((uint64_t)_res_conv_18) & ~1);
+               CHECK_ACCESS(_res_conv_18_ptr);
+               LDKMessageSendEvent _res_conv_18_conv = *(LDKMessageSendEvent*)(_res_conv_18_ptr);
                FREE((void*)_res_conv_18);
                _res_constr.data[s] = _res_conv_18_conv;
        }
@@ -11486,7 +11621,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InitFeaturesDecode
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1InitFeaturesDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_InitFeaturesDecodeErrorZ _res_conv = *(LDKCResult_InitFeaturesDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_InitFeaturesDecodeErrorZ _res_conv = *(LDKCResult_InitFeaturesDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_InitFeaturesDecodeErrorZ_free(_res_conv);
 }
@@ -11513,7 +11650,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeFeaturesDecode
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NodeFeaturesDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_NodeFeaturesDecodeErrorZ _res_conv = *(LDKCResult_NodeFeaturesDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_NodeFeaturesDecodeErrorZ _res_conv = *(LDKCResult_NodeFeaturesDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_NodeFeaturesDecodeErrorZ_free(_res_conv);
 }
@@ -11540,7 +11679,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelFeaturesDec
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelFeaturesDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_ChannelFeaturesDecodeErrorZ _res_conv = *(LDKCResult_ChannelFeaturesDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_ChannelFeaturesDecodeErrorZ _res_conv = *(LDKCResult_ChannelFeaturesDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_ChannelFeaturesDecodeErrorZ_free(_res_conv);
 }
@@ -11567,7 +11708,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceFeaturesDec
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceFeaturesDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_InvoiceFeaturesDecodeErrorZ _res_conv = *(LDKCResult_InvoiceFeaturesDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_InvoiceFeaturesDecodeErrorZ _res_conv = *(LDKCResult_InvoiceFeaturesDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_InvoiceFeaturesDecodeErrorZ_free(_res_conv);
 }
@@ -11594,7 +11737,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1DelayedPaymentOutp
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1DelayedPaymentOutputDescriptorDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ _res_conv = *(LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ _res_conv = *(LDKCResult_DelayedPaymentOutputDescriptorDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_DelayedPaymentOutputDescriptorDecodeErrorZ_free(_res_conv);
 }
@@ -11628,7 +11773,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1StaticPaymentOutpu
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1StaticPaymentOutputDescriptorDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ _res_conv = *(LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ _res_conv = *(LDKCResult_StaticPaymentOutputDescriptorDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_StaticPaymentOutputDescriptorDecodeErrorZ_free(_res_conv);
 }
@@ -11641,7 +11788,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1StaticPaymentOutpu
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SpendableOutputDescriptorDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKSpendableOutputDescriptor o_conv = *(LDKSpendableOutputDescriptor*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       CHECK_ACCESS(o_ptr);
+       LDKSpendableOutputDescriptor o_conv = *(LDKSpendableOutputDescriptor*)(o_ptr);
        o_conv = SpendableOutputDescriptor_clone((LDKSpendableOutputDescriptor*)(((uint64_t)o) & ~1));
        LDKCResult_SpendableOutputDescriptorDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SpendableOutputDescriptorDecodeErrorZ), "LDKCResult_SpendableOutputDescriptorDecodeErrorZ");
        *ret_conv = CResult_SpendableOutputDescriptorDecodeErrorZ_ok(o_conv);
@@ -11660,7 +11809,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SpendableOutputDes
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1SpendableOutputDescriptorDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_SpendableOutputDescriptorDecodeErrorZ _res_conv = *(LDKCResult_SpendableOutputDescriptorDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_SpendableOutputDescriptorDecodeErrorZ _res_conv = *(LDKCResult_SpendableOutputDescriptorDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_SpendableOutputDescriptorDecodeErrorZ_free(_res_conv);
 }
@@ -11686,7 +11837,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneNoneZ_1err(JNI
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NoneNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_NoneNoneZ _res_conv = *(LDKCResult_NoneNoneZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_NoneNoneZ _res_conv = *(LDKCResult_NoneNoneZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_NoneNoneZ_free(_res_conv);
 }
@@ -11729,13 +11882,17 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1SignatureCVec_1Sig
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C2Tuple_1SignatureCVec_1SignatureZZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKC2Tuple_SignatureCVec_SignatureZZ _res_conv = *(LDKC2Tuple_SignatureCVec_SignatureZZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKC2Tuple_SignatureCVec_SignatureZZ _res_conv = *(LDKC2Tuple_SignatureCVec_SignatureZZ*)(_res_ptr);
        FREE((void*)_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) {
-       LDKC2Tuple_SignatureCVec_SignatureZZ o_conv = *(LDKC2Tuple_SignatureCVec_SignatureZZ*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       CHECK_ACCESS(o_ptr);
+       LDKC2Tuple_SignatureCVec_SignatureZZ o_conv = *(LDKC2Tuple_SignatureCVec_SignatureZZ*)(o_ptr);
        o_conv = C2Tuple_SignatureCVec_SignatureZZ_clone((LDKC2Tuple_SignatureCVec_SignatureZZ*)(((uint64_t)o) & ~1));
        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);
@@ -11750,7 +11907,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1Signature
 
 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;
-       LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ _res_conv = *(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ _res_conv = *(LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_free(_res_conv);
 }
@@ -11779,7 +11938,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SignatureNoneZ_1er
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1SignatureNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_SignatureNoneZ _res_conv = *(LDKCResult_SignatureNoneZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_SignatureNoneZ _res_conv = *(LDKCResult_SignatureNoneZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_SignatureNoneZ_free(_res_conv);
 }
@@ -11792,7 +11953,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SignatureNoneZ_1cl
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SignDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKSign o_conv = *(LDKSign*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       CHECK_ACCESS(o_ptr);
+       LDKSign o_conv = *(LDKSign*)(o_ptr);
        if (o_conv.free == LDKSign_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKSign_JCalls_cloned(&o_conv);
@@ -11814,7 +11977,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SignDecodeErrorZ_1
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1SignDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_SignDecodeErrorZ _res_conv = *(LDKCResult_SignDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_SignDecodeErrorZ _res_conv = *(LDKCResult_SignDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_SignDecodeErrorZ_free(_res_conv);
 }
@@ -11851,7 +12016,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RecoverableSignatu
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1RecoverableSignatureNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_RecoverableSignatureNoneZ _res_conv = *(LDKCResult_RecoverableSignatureNoneZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_RecoverableSignatureNoneZ _res_conv = *(LDKCResult_RecoverableSignatureNoneZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_RecoverableSignatureNoneZ_free(_res_conv);
 }
@@ -11909,7 +12076,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1CVec_1u8ZZNo
 
 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;
-       LDKCResult_CVec_CVec_u8ZZNoneZ _res_conv = *(LDKCResult_CVec_CVec_u8ZZNoneZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_CVec_CVec_u8ZZNoneZ _res_conv = *(LDKCResult_CVec_CVec_u8ZZNoneZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_CVec_CVec_u8ZZNoneZ_free(_res_conv);
 }
@@ -11943,7 +12112,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InMemorySignerDeco
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1InMemorySignerDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_InMemorySignerDecodeErrorZ _res_conv = *(LDKCResult_InMemorySignerDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_InMemorySignerDecodeErrorZ _res_conv = *(LDKCResult_InMemorySignerDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_InMemorySignerDecodeErrorZ_free(_res_conv);
 }
@@ -11965,7 +12136,9 @@ 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];
-               LDKTxOut _res_conv_7_conv = *(LDKTxOut*)(((uint64_t)_res_conv_7) & ~1);
+               void* _res_conv_7_ptr = (void*)(((uint64_t)_res_conv_7) & ~1);
+               CHECK_ACCESS(_res_conv_7_ptr);
+               LDKTxOut _res_conv_7_conv = *(LDKTxOut*)(_res_conv_7_ptr);
                FREE((void*)_res_conv_7);
                _res_constr.data[h] = _res_conv_7_conv;
        }
@@ -11992,7 +12165,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1TransactionNoneZ_1
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1TransactionNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_TransactionNoneZ _res_conv = *(LDKCResult_TransactionNoneZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_TransactionNoneZ _res_conv = *(LDKCResult_TransactionNoneZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_TransactionNoneZ_free(_res_conv);
 }
@@ -12026,7 +12201,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1BlockHashChannelMo
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C2Tuple_1BlockHashChannelMonitorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKC2Tuple_BlockHashChannelMonitorZ _res_conv = *(LDKC2Tuple_BlockHashChannelMonitorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKC2Tuple_BlockHashChannelMonitorZ _res_conv = *(LDKC2Tuple_BlockHashChannelMonitorZ*)(_res_ptr);
        FREE((void*)_res);
        C2Tuple_BlockHashChannelMonitorZ_free(_res_conv);
 }
@@ -12041,7 +12218,9 @@ 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];
-               LDKC2Tuple_BlockHashChannelMonitorZ _res_conv_35_conv = *(LDKC2Tuple_BlockHashChannelMonitorZ*)(((uint64_t)_res_conv_35) & ~1);
+               void* _res_conv_35_ptr = (void*)(((uint64_t)_res_conv_35) & ~1);
+               CHECK_ACCESS(_res_conv_35_ptr);
+               LDKC2Tuple_BlockHashChannelMonitorZ _res_conv_35_conv = *(LDKC2Tuple_BlockHashChannelMonitorZ*)(_res_conv_35_ptr);
                FREE((void*)_res_conv_35);
                _res_constr.data[j] = _res_conv_35_conv;
        }
@@ -12059,7 +12238,9 @@ 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];
-               LDKC2Tuple_BlockHashChannelMonitorZ o_conv_35_conv = *(LDKC2Tuple_BlockHashChannelMonitorZ*)(((uint64_t)o_conv_35) & ~1);
+               void* o_conv_35_ptr = (void*)(((uint64_t)o_conv_35) & ~1);
+               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*)(((uint64_t)o_conv_35) & ~1));
                o_constr.data[j] = o_conv_35_conv;
        }
@@ -12078,7 +12259,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1C2Tuple_1Blo
 
 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;
-       LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ _res_conv = *(LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ _res_conv = *(LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ_free(_res_conv);
 }
@@ -12112,7 +12295,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentIdDecodeErr
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentIdDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_PaymentIdDecodeErrorZ _res_conv = *(LDKCResult_PaymentIdDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_PaymentIdDecodeErrorZ _res_conv = *(LDKCResult_PaymentIdDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_PaymentIdDecodeErrorZ_free(_res_conv);
 }
@@ -12140,7 +12325,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1u16Z_1none(JNIEnv
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1u16Z_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCOption_u16Z _res_conv = *(LDKCOption_u16Z*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCOption_u16Z _res_conv = *(LDKCOption_u16Z*)(_res_ptr);
        FREE((void*)_res);
        COption_u16Z_free(_res_conv);
 }
@@ -12160,7 +12347,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneAPIErrorZ_1ok(
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneAPIErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
-       LDKAPIError e_conv = *(LDKAPIError*)(((uint64_t)e) & ~1);
+       void* e_ptr = (void*)(((uint64_t)e) & ~1);
+       CHECK_ACCESS(e_ptr);
+       LDKAPIError e_conv = *(LDKAPIError*)(e_ptr);
        e_conv = APIError_clone((LDKAPIError*)(((uint64_t)e) & ~1));
        LDKCResult_NoneAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
        *ret_conv = CResult_NoneAPIErrorZ_err(e_conv);
@@ -12169,7 +12358,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneAPIErrorZ_1err
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NoneAPIErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_NoneAPIErrorZ _res_conv = *(LDKCResult_NoneAPIErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_NoneAPIErrorZ _res_conv = *(LDKCResult_NoneAPIErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_NoneAPIErrorZ_free(_res_conv);
 }
@@ -12191,7 +12382,9 @@ 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];
-               LDKCResult_NoneAPIErrorZ _res_conv_22_conv = *(LDKCResult_NoneAPIErrorZ*)(((uint64_t)_res_conv_22) & ~1);
+               void* _res_conv_22_ptr = (void*)(((uint64_t)_res_conv_22) & ~1);
+               CHECK_ACCESS(_res_conv_22_ptr);
+               LDKCResult_NoneAPIErrorZ _res_conv_22_conv = *(LDKCResult_NoneAPIErrorZ*)(_res_conv_22_ptr);
                FREE((void*)_res_conv_22);
                _res_constr.data[w] = _res_conv_22_conv;
        }
@@ -12209,7 +12402,9 @@ 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];
-               LDKAPIError _res_conv_10_conv = *(LDKAPIError*)(((uint64_t)_res_conv_10) & ~1);
+               void* _res_conv_10_ptr = (void*)(((uint64_t)_res_conv_10) & ~1);
+               CHECK_ACCESS(_res_conv_10_ptr);
+               LDKAPIError _res_conv_10_conv = *(LDKAPIError*)(_res_conv_10_ptr);
                FREE((void*)_res_conv_10);
                _res_constr.data[k] = _res_conv_10_conv;
        }
@@ -12227,7 +12422,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1_1u832APIErrorZ_1o
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1_1u832APIErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
-       LDKAPIError e_conv = *(LDKAPIError*)(((uint64_t)e) & ~1);
+       void* e_ptr = (void*)(((uint64_t)e) & ~1);
+       CHECK_ACCESS(e_ptr);
+       LDKAPIError e_conv = *(LDKAPIError*)(e_ptr);
        e_conv = APIError_clone((LDKAPIError*)(((uint64_t)e) & ~1));
        LDKCResult__u832APIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult__u832APIErrorZ), "LDKCResult__u832APIErrorZ");
        *ret_conv = CResult__u832APIErrorZ_err(e_conv);
@@ -12236,7 +12433,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1_1u832APIErrorZ_1e
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1_1u832APIErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult__u832APIErrorZ _res_conv = *(LDKCResult__u832APIErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult__u832APIErrorZ _res_conv = *(LDKCResult__u832APIErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult__u832APIErrorZ_free(_res_conv);
 }
@@ -12259,7 +12458,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentIdPaymentSe
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentIdPaymentSendFailureZ_1err(JNIEnv *env, jclass clz, int64_t e) {
-       LDKPaymentSendFailure e_conv = *(LDKPaymentSendFailure*)(((uint64_t)e) & ~1);
+       void* e_ptr = (void*)(((uint64_t)e) & ~1);
+       CHECK_ACCESS(e_ptr);
+       LDKPaymentSendFailure e_conv = *(LDKPaymentSendFailure*)(e_ptr);
        e_conv = PaymentSendFailure_clone((LDKPaymentSendFailure*)(((uint64_t)e) & ~1));
        LDKCResult_PaymentIdPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentIdPaymentSendFailureZ), "LDKCResult_PaymentIdPaymentSendFailureZ");
        *ret_conv = CResult_PaymentIdPaymentSendFailureZ_err(e_conv);
@@ -12268,7 +12469,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentIdPaymentSe
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentIdPaymentSendFailureZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_PaymentIdPaymentSendFailureZ _res_conv = *(LDKCResult_PaymentIdPaymentSendFailureZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_PaymentIdPaymentSendFailureZ _res_conv = *(LDKCResult_PaymentIdPaymentSendFailureZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_PaymentIdPaymentSendFailureZ_free(_res_conv);
 }
@@ -12287,7 +12490,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NonePaymentSendFai
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NonePaymentSendFailureZ_1err(JNIEnv *env, jclass clz, int64_t e) {
-       LDKPaymentSendFailure e_conv = *(LDKPaymentSendFailure*)(((uint64_t)e) & ~1);
+       void* e_ptr = (void*)(((uint64_t)e) & ~1);
+       CHECK_ACCESS(e_ptr);
+       LDKPaymentSendFailure e_conv = *(LDKPaymentSendFailure*)(e_ptr);
        e_conv = PaymentSendFailure_clone((LDKPaymentSendFailure*)(((uint64_t)e) & ~1));
        LDKCResult_NonePaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePaymentSendFailureZ), "LDKCResult_NonePaymentSendFailureZ");
        *ret_conv = CResult_NonePaymentSendFailureZ_err(e_conv);
@@ -12296,7 +12501,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NonePaymentSendFai
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NonePaymentSendFailureZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_NonePaymentSendFailureZ _res_conv = *(LDKCResult_NonePaymentSendFailureZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_NonePaymentSendFailureZ _res_conv = *(LDKCResult_NonePaymentSendFailureZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_NonePaymentSendFailureZ_free(_res_conv);
 }
@@ -12330,13 +12537,17 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PaymentHashPayment
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PaymentHashPaymentIdZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKC2Tuple_PaymentHashPaymentIdZ _res_conv = *(LDKC2Tuple_PaymentHashPaymentIdZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKC2Tuple_PaymentHashPaymentIdZ _res_conv = *(LDKC2Tuple_PaymentHashPaymentIdZ*)(_res_ptr);
        FREE((void*)_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) {
-       LDKC2Tuple_PaymentHashPaymentIdZ o_conv = *(LDKC2Tuple_PaymentHashPaymentIdZ*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       CHECK_ACCESS(o_ptr);
+       LDKC2Tuple_PaymentHashPaymentIdZ o_conv = *(LDKC2Tuple_PaymentHashPaymentIdZ*)(o_ptr);
        o_conv = C2Tuple_PaymentHashPaymentIdZ_clone((LDKC2Tuple_PaymentHashPaymentIdZ*)(((uint64_t)o) & ~1));
        LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ), "LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_ok(o_conv);
@@ -12344,7 +12555,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHa
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentIdZPaymentSendFailureZ_1err(JNIEnv *env, jclass clz, int64_t e) {
-       LDKPaymentSendFailure e_conv = *(LDKPaymentSendFailure*)(((uint64_t)e) & ~1);
+       void* e_ptr = (void*)(((uint64_t)e) & ~1);
+       CHECK_ACCESS(e_ptr);
+       LDKPaymentSendFailure e_conv = *(LDKPaymentSendFailure*)(e_ptr);
        e_conv = PaymentSendFailure_clone((LDKPaymentSendFailure*)(((uint64_t)e) & ~1));
        LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ), "LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ");
        *ret_conv = CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_err(e_conv);
@@ -12353,7 +12566,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHa
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1PaymentHashPaymentIdZPaymentSendFailureZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ _res_conv = *(LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ _res_conv = *(LDKCResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_C2Tuple_PaymentHashPaymentIdZPaymentSendFailureZ_free(_res_conv);
 }
@@ -12375,7 +12590,9 @@ 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];
-               LDKNetAddress _res_conv_12_conv = *(LDKNetAddress*)(((uint64_t)_res_conv_12) & ~1);
+               void* _res_conv_12_ptr = (void*)(((uint64_t)_res_conv_12) & ~1);
+               CHECK_ACCESS(_res_conv_12_ptr);
+               LDKNetAddress _res_conv_12_conv = *(LDKNetAddress*)(_res_conv_12_ptr);
                FREE((void*)_res_conv_12);
                _res_constr.data[m] = _res_conv_12_conv;
        }
@@ -12404,7 +12621,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PaymentHashPayment
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PaymentHashPaymentSecretZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKC2Tuple_PaymentHashPaymentSecretZ _res_conv = *(LDKC2Tuple_PaymentHashPaymentSecretZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKC2Tuple_PaymentHashPaymentSecretZ _res_conv = *(LDKC2Tuple_PaymentHashPaymentSecretZ*)(_res_ptr);
        FREE((void*)_res);
        C2Tuple_PaymentHashPaymentSecretZ_free(_res_conv);
 }
@@ -12419,7 +12638,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentSecretAPIEr
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentSecretAPIErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
-       LDKAPIError e_conv = *(LDKAPIError*)(((uint64_t)e) & ~1);
+       void* e_ptr = (void*)(((uint64_t)e) & ~1);
+       CHECK_ACCESS(e_ptr);
+       LDKAPIError e_conv = *(LDKAPIError*)(e_ptr);
        e_conv = APIError_clone((LDKAPIError*)(((uint64_t)e) & ~1));
        LDKCResult_PaymentSecretAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentSecretAPIErrorZ), "LDKCResult_PaymentSecretAPIErrorZ");
        *ret_conv = CResult_PaymentSecretAPIErrorZ_err(e_conv);
@@ -12428,7 +12649,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentSecretAPIEr
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentSecretAPIErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_PaymentSecretAPIErrorZ _res_conv = *(LDKCResult_PaymentSecretAPIErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_PaymentSecretAPIErrorZ _res_conv = *(LDKCResult_PaymentSecretAPIErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_PaymentSecretAPIErrorZ_free(_res_conv);
 }
@@ -12474,13 +12697,17 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1BlockHashChannelMa
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C2Tuple_1BlockHashChannelManagerZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKC2Tuple_BlockHashChannelManagerZ _res_conv = *(LDKC2Tuple_BlockHashChannelManagerZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKC2Tuple_BlockHashChannelManagerZ _res_conv = *(LDKC2Tuple_BlockHashChannelManagerZ*)(_res_ptr);
        FREE((void*)_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) {
-       LDKC2Tuple_BlockHashChannelManagerZ o_conv = *(LDKC2Tuple_BlockHashChannelManagerZ*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       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);
@@ -12499,7 +12726,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1BlockHash
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1BlockHashChannelManagerZDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ _res_conv = *(LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ _res_conv = *(LDKCResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_free(_res_conv);
 }
@@ -12526,7 +12755,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelConfigDecod
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelConfigDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_ChannelConfigDecodeErrorZ _res_conv = *(LDKCResult_ChannelConfigDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_ChannelConfigDecodeErrorZ _res_conv = *(LDKCResult_ChannelConfigDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_ChannelConfigDecodeErrorZ_free(_res_conv);
 }
@@ -12560,7 +12791,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1OutPointDecodeErro
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1OutPointDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_OutPointDecodeErrorZ _res_conv = *(LDKCResult_OutPointDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_OutPointDecodeErrorZ _res_conv = *(LDKCResult_OutPointDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_OutPointDecodeErrorZ_free(_res_conv);
 }
@@ -12573,7 +12806,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1OutPointDecodeErro
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1TypeZ_1some(JNIEnv *env, jclass clz, int64_t o) {
-       LDKType o_conv = *(LDKType*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       CHECK_ACCESS(o_ptr);
+       LDKType o_conv = *(LDKType*)(o_ptr);
        if (o_conv.free == LDKType_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKType_JCalls_cloned(&o_conv);
@@ -12593,7 +12828,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1TypeZ_1none(JNIEnv
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1TypeZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCOption_TypeZ _res_conv = *(LDKCOption_TypeZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCOption_TypeZ _res_conv = *(LDKCOption_TypeZ*)(_res_ptr);
        FREE((void*)_res);
        COption_TypeZ_free(_res_conv);
 }
@@ -12607,7 +12844,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1TypeZ_1clone(JNIEn
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1TypeZDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCOption_TypeZ o_conv = *(LDKCOption_TypeZ*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       CHECK_ACCESS(o_ptr);
+       LDKCOption_TypeZ o_conv = *(LDKCOption_TypeZ*)(o_ptr);
        o_conv = COption_TypeZ_clone((LDKCOption_TypeZ*)(((uint64_t)o) & ~1));
        LDKCResult_COption_TypeZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_COption_TypeZDecodeErrorZ), "LDKCResult_COption_TypeZDecodeErrorZ");
        *ret_conv = CResult_COption_TypeZDecodeErrorZ_ok(o_conv);
@@ -12626,7 +12865,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1TypeZDeco
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1COption_1TypeZDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_COption_TypeZDecodeErrorZ _res_conv = *(LDKCResult_COption_TypeZDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_COption_TypeZDecodeErrorZ _res_conv = *(LDKCResult_COption_TypeZDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_COption_TypeZDecodeErrorZ_free(_res_conv);
 }
@@ -12653,7 +12894,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SiPrefixNoneZ_1err
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1SiPrefixNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_SiPrefixNoneZ _res_conv = *(LDKCResult_SiPrefixNoneZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_SiPrefixNoneZ _res_conv = *(LDKCResult_SiPrefixNoneZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_SiPrefixNoneZ_free(_res_conv);
 }
@@ -12683,7 +12926,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceNoneZ_1err(
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_InvoiceNoneZ _res_conv = *(LDKCResult_InvoiceNoneZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_InvoiceNoneZ _res_conv = *(LDKCResult_InvoiceNoneZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_InvoiceNoneZ_free(_res_conv);
 }
@@ -12713,7 +12958,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SignedRawInvoiceNo
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1SignedRawInvoiceNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_SignedRawInvoiceNoneZ _res_conv = *(LDKCResult_SignedRawInvoiceNoneZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_SignedRawInvoiceNoneZ _res_conv = *(LDKCResult_SignedRawInvoiceNoneZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_SignedRawInvoiceNoneZ_free(_res_conv);
 }
@@ -12751,7 +12998,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C3Tuple_1RawInvoice_1u832In
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C3Tuple_1RawInvoice_1u832InvoiceSignatureZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ _res_conv = *(LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ _res_conv = *(LDKC3Tuple_RawInvoice_u832InvoiceSignatureZ*)(_res_ptr);
        FREE((void*)_res);
        C3Tuple_RawInvoice_u832InvoiceSignatureZ_free(_res_conv);
 }
@@ -12775,7 +13024,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PayeePubKeyErrorZ_
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PayeePubKeyErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_PayeePubKeyErrorZ _res_conv = *(LDKCResult_PayeePubKeyErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_PayeePubKeyErrorZ _res_conv = *(LDKCResult_PayeePubKeyErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_PayeePubKeyErrorZ_free(_res_conv);
 }
@@ -12825,7 +13076,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PositiveTimestampC
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PositiveTimestampCreationErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_PositiveTimestampCreationErrorZ _res_conv = *(LDKCResult_PositiveTimestampCreationErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_PositiveTimestampCreationErrorZ _res_conv = *(LDKCResult_PositiveTimestampCreationErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_PositiveTimestampCreationErrorZ_free(_res_conv);
 }
@@ -12852,7 +13105,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneSemanticErrorZ
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NoneSemanticErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_NoneSemanticErrorZ _res_conv = *(LDKCResult_NoneSemanticErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_NoneSemanticErrorZ _res_conv = *(LDKCResult_NoneSemanticErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_NoneSemanticErrorZ_free(_res_conv);
 }
@@ -12883,7 +13138,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceSemanticErr
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceSemanticErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_InvoiceSemanticErrorZ _res_conv = *(LDKCResult_InvoiceSemanticErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_InvoiceSemanticErrorZ _res_conv = *(LDKCResult_InvoiceSemanticErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_InvoiceSemanticErrorZ_free(_res_conv);
 }
@@ -12914,7 +13171,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1DescriptionCreatio
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1DescriptionCreationErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_DescriptionCreationErrorZ _res_conv = *(LDKCResult_DescriptionCreationErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_DescriptionCreationErrorZ _res_conv = *(LDKCResult_DescriptionCreationErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_DescriptionCreationErrorZ_free(_res_conv);
 }
@@ -12945,7 +13204,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ExpiryTimeCreation
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ExpiryTimeCreationErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_ExpiryTimeCreationErrorZ _res_conv = *(LDKCResult_ExpiryTimeCreationErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_ExpiryTimeCreationErrorZ _res_conv = *(LDKCResult_ExpiryTimeCreationErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_ExpiryTimeCreationErrorZ_free(_res_conv);
 }
@@ -12976,7 +13237,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PrivateRouteCreati
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PrivateRouteCreationErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_PrivateRouteCreationErrorZ _res_conv = *(LDKCResult_PrivateRouteCreationErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_PrivateRouteCreationErrorZ _res_conv = *(LDKCResult_PrivateRouteCreationErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_PrivateRouteCreationErrorZ_free(_res_conv);
 }
@@ -13004,7 +13267,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1StringErrorZ_1err(
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1StringErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_StringErrorZ _res_conv = *(LDKCResult_StringErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_StringErrorZ _res_conv = *(LDKCResult_StringErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_StringErrorZ_free(_res_conv);
 }
@@ -13031,7 +13296,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelMonitorUpda
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelMonitorUpdateDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_ChannelMonitorUpdateDecodeErrorZ _res_conv = *(LDKCResult_ChannelMonitorUpdateDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_ChannelMonitorUpdateDecodeErrorZ _res_conv = *(LDKCResult_ChannelMonitorUpdateDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_ChannelMonitorUpdateDecodeErrorZ_free(_res_conv);
 }
@@ -13065,7 +13332,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1HTLCUpdateDecodeEr
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1HTLCUpdateDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_HTLCUpdateDecodeErrorZ _res_conv = *(LDKCResult_HTLCUpdateDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_HTLCUpdateDecodeErrorZ _res_conv = *(LDKCResult_HTLCUpdateDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_HTLCUpdateDecodeErrorZ_free(_res_conv);
 }
@@ -13095,7 +13364,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneMonitorUpdateE
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NoneMonitorUpdateErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_NoneMonitorUpdateErrorZ _res_conv = *(LDKCResult_NoneMonitorUpdateErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_NoneMonitorUpdateErrorZ _res_conv = *(LDKCResult_NoneMonitorUpdateErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_NoneMonitorUpdateErrorZ_free(_res_conv);
 }
@@ -13130,7 +13401,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1OutPointScriptZ_1n
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C2Tuple_1OutPointScriptZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKC2Tuple_OutPointScriptZ _res_conv = *(LDKC2Tuple_OutPointScriptZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKC2Tuple_OutPointScriptZ _res_conv = *(LDKC2Tuple_OutPointScriptZ*)(_res_ptr);
        FREE((void*)_res);
        C2Tuple_OutPointScriptZ_free(_res_conv);
 }
@@ -13154,7 +13427,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u32ScriptZ_1new(JN
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u32ScriptZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKC2Tuple_u32ScriptZ _res_conv = *(LDKC2Tuple_u32ScriptZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKC2Tuple_u32ScriptZ _res_conv = *(LDKC2Tuple_u32ScriptZ*)(_res_ptr);
        FREE((void*)_res);
        C2Tuple_u32ScriptZ_free(_res_conv);
 }
@@ -13169,7 +13444,9 @@ 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];
-               LDKC2Tuple_u32ScriptZ _res_conv_21_conv = *(LDKC2Tuple_u32ScriptZ*)(((uint64_t)_res_conv_21) & ~1);
+               void* _res_conv_21_ptr = (void*)(((uint64_t)_res_conv_21) & ~1);
+               CHECK_ACCESS(_res_conv_21_ptr);
+               LDKC2Tuple_u32ScriptZ _res_conv_21_conv = *(LDKC2Tuple_u32ScriptZ*)(_res_conv_21_ptr);
                FREE((void*)_res_conv_21);
                _res_constr.data[v] = _res_conv_21_conv;
        }
@@ -13197,7 +13474,9 @@ 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];
-               LDKC2Tuple_u32ScriptZ b_conv_21_conv = *(LDKC2Tuple_u32ScriptZ*)(((uint64_t)b_conv_21) & ~1);
+               void* b_conv_21_ptr = (void*)(((uint64_t)b_conv_21) & ~1);
+               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*)(((uint64_t)b_conv_21) & ~1));
                b_constr.data[v] = b_conv_21_conv;
        }
@@ -13209,7 +13488,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1TxidCVec_1C2Tuple_
 
 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;
-       LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ _res_conv = *(LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ _res_conv = *(LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ*)(_res_ptr);
        FREE((void*)_res);
        C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ_free(_res_conv);
 }
@@ -13224,7 +13505,9 @@ 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];
-               LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ _res_conv_40_conv = *(LDKC2Tuple_TxidCVec_C2Tuple_u32ScriptZZZ*)(((uint64_t)_res_conv_40) & ~1);
+               void* _res_conv_40_ptr = (void*)(((uint64_t)_res_conv_40) & ~1);
+               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);
                _res_constr.data[o] = _res_conv_40_conv;
        }
@@ -13242,7 +13525,9 @@ 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];
-               LDKEvent _res_conv_7_conv = *(LDKEvent*)(((uint64_t)_res_conv_7) & ~1);
+               void* _res_conv_7_ptr = (void*)(((uint64_t)_res_conv_7) & ~1);
+               CHECK_ACCESS(_res_conv_7_ptr);
+               LDKEvent _res_conv_7_conv = *(LDKEvent*)(_res_conv_7_ptr);
                FREE((void*)_res_conv_7);
                _res_constr.data[h] = _res_conv_7_conv;
        }
@@ -13277,7 +13562,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u32TxOutZ_1clone(J
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u32TxOutZ_1new(JNIEnv *env, jclass clz, int32_t a, int64_t b) {
-       LDKTxOut b_conv = *(LDKTxOut*)(((uint64_t)b) & ~1);
+       void* b_ptr = (void*)(((uint64_t)b) & ~1);
+       CHECK_ACCESS(b_ptr);
+       LDKTxOut b_conv = *(LDKTxOut*)(b_ptr);
        b_conv = TxOut_clone((LDKTxOut*)(((uint64_t)b) & ~1));
        LDKC2Tuple_u32TxOutZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_u32TxOutZ), "LDKC2Tuple_u32TxOutZ");
        *ret_conv = C2Tuple_u32TxOutZ_new(a, b_conv);
@@ -13286,7 +13573,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u32TxOutZ_1new(JNI
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C2Tuple_1u32TxOutZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKC2Tuple_u32TxOutZ _res_conv = *(LDKC2Tuple_u32TxOutZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKC2Tuple_u32TxOutZ _res_conv = *(LDKC2Tuple_u32TxOutZ*)(_res_ptr);
        FREE((void*)_res);
        C2Tuple_u32TxOutZ_free(_res_conv);
 }
@@ -13301,7 +13590,9 @@ 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];
-               LDKC2Tuple_u32TxOutZ _res_conv_20_conv = *(LDKC2Tuple_u32TxOutZ*)(((uint64_t)_res_conv_20) & ~1);
+               void* _res_conv_20_ptr = (void*)(((uint64_t)_res_conv_20) & ~1);
+               CHECK_ACCESS(_res_conv_20_ptr);
+               LDKC2Tuple_u32TxOutZ _res_conv_20_conv = *(LDKC2Tuple_u32TxOutZ*)(_res_conv_20_ptr);
                FREE((void*)_res_conv_20);
                _res_constr.data[u] = _res_conv_20_conv;
        }
@@ -13329,7 +13620,9 @@ 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];
-               LDKC2Tuple_u32TxOutZ b_conv_20_conv = *(LDKC2Tuple_u32TxOutZ*)(((uint64_t)b_conv_20) & ~1);
+               void* b_conv_20_ptr = (void*)(((uint64_t)b_conv_20) & ~1);
+               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*)(((uint64_t)b_conv_20) & ~1));
                b_constr.data[u] = b_conv_20_conv;
        }
@@ -13341,7 +13634,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1TxidCVec_1C2Tuple_
 
 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;
-       LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ _res_conv = *(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ _res_conv = *(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ*)(_res_ptr);
        FREE((void*)_res);
        C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ_free(_res_conv);
 }
@@ -13356,7 +13651,9 @@ 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];
-               LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ _res_conv_39_conv = *(LDKC2Tuple_TxidCVec_C2Tuple_u32TxOutZZZ*)(((uint64_t)_res_conv_39) & ~1);
+               void* _res_conv_39_ptr = (void*)(((uint64_t)_res_conv_39) & ~1);
+               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);
                _res_constr.data[n] = _res_conv_39_conv;
        }
@@ -13374,7 +13671,9 @@ 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];
-               LDKBalance _res_conv_9_conv = *(LDKBalance*)(((uint64_t)_res_conv_9) & ~1);
+               void* _res_conv_9_ptr = (void*)(((uint64_t)_res_conv_9) & ~1);
+               CHECK_ACCESS(_res_conv_9_ptr);
+               LDKBalance _res_conv_9_conv = *(LDKBalance*)(_res_conv_9_ptr);
                FREE((void*)_res_conv_9);
                _res_constr.data[j] = _res_conv_9_conv;
        }
@@ -13383,7 +13682,9 @@ 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) {
-       LDKC2Tuple_BlockHashChannelMonitorZ o_conv = *(LDKC2Tuple_BlockHashChannelMonitorZ*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       CHECK_ACCESS(o_ptr);
+       LDKC2Tuple_BlockHashChannelMonitorZ o_conv = *(LDKC2Tuple_BlockHashChannelMonitorZ*)(o_ptr);
        o_conv = C2Tuple_BlockHashChannelMonitorZ_clone((LDKC2Tuple_BlockHashChannelMonitorZ*)(((uint64_t)o) & ~1));
        LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ), "LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ");
        *ret_conv = CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_ok(o_conv);
@@ -13402,7 +13703,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1BlockHash
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1C2Tuple_1BlockHashChannelMonitorZDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ _res_conv = *(LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ _res_conv = *(LDKCResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_free(_res_conv);
 }
@@ -13432,7 +13735,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneLightningError
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NoneLightningErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_NoneLightningErrorZ _res_conv = *(LDKCResult_NoneLightningErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_NoneLightningErrorZ _res_conv = *(LDKCResult_NoneLightningErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_NoneLightningErrorZ_free(_res_conv);
 }
@@ -13455,7 +13760,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PublicKeyTypeZ_1ne
        LDKPublicKey a_ref;
        CHECK((*env)->GetArrayLength(env, a) == 33);
        (*env)->GetByteArrayRegion(env, a, 0, 33, a_ref.compressed_form);
-       LDKType b_conv = *(LDKType*)(((uint64_t)b) & ~1);
+       void* b_ptr = (void*)(((uint64_t)b) & ~1);
+       CHECK_ACCESS(b_ptr);
+       LDKType b_conv = *(LDKType*)(b_ptr);
        if (b_conv.free == LDKType_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKType_JCalls_cloned(&b_conv);
@@ -13467,7 +13774,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PublicKeyTypeZ_1ne
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C2Tuple_1PublicKeyTypeZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKC2Tuple_PublicKeyTypeZ _res_conv = *(LDKC2Tuple_PublicKeyTypeZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKC2Tuple_PublicKeyTypeZ _res_conv = *(LDKC2Tuple_PublicKeyTypeZ*)(_res_ptr);
        FREE((void*)_res);
        C2Tuple_PublicKeyTypeZ_free(_res_conv);
 }
@@ -13482,7 +13791,9 @@ 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];
-               LDKC2Tuple_PublicKeyTypeZ _res_conv_25_conv = *(LDKC2Tuple_PublicKeyTypeZ*)(((uint64_t)_res_conv_25) & ~1);
+               void* _res_conv_25_ptr = (void*)(((uint64_t)_res_conv_25) & ~1);
+               CHECK_ACCESS(_res_conv_25_ptr);
+               LDKC2Tuple_PublicKeyTypeZ _res_conv_25_conv = *(LDKC2Tuple_PublicKeyTypeZ*)(_res_conv_25_ptr);
                FREE((void*)_res_conv_25);
                _res_constr.data[z] = _res_conv_25_conv;
        }
@@ -13508,7 +13819,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1boolLightningError
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1boolLightningErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_boolLightningErrorZ _res_conv = *(LDKCResult_boolLightningErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_boolLightningErrorZ _res_conv = *(LDKCResult_boolLightningErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_boolLightningErrorZ_free(_res_conv);
 }
@@ -13547,7 +13860,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_C3Tuple_1ChannelAnnouncemen
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_C3Tuple_1ChannelAnnouncementChannelUpdateChannelUpdateZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ _res_conv = *(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ _res_conv = *(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(_res_ptr);
        FREE((void*)_res);
        C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ_free(_res_conv);
 }
@@ -13562,7 +13877,9 @@ 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];
-               LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ _res_conv_59_conv = *(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(((uint64_t)_res_conv_59) & ~1);
+               void* _res_conv_59_ptr = (void*)(((uint64_t)_res_conv_59) & ~1);
+               CHECK_ACCESS(_res_conv_59_ptr);
+               LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ _res_conv_59_conv = *(LDKC3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZ*)(_res_conv_59_ptr);
                FREE((void*)_res_conv_59);
                _res_constr.data[h] = _res_conv_59_conv;
        }
@@ -13628,7 +13945,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1u8ZPeerHandl
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1u8ZPeerHandleErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_CVec_u8ZPeerHandleErrorZ _res_conv = *(LDKCResult_CVec_u8ZPeerHandleErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_CVec_u8ZPeerHandleErrorZ _res_conv = *(LDKCResult_CVec_u8ZPeerHandleErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_CVec_u8ZPeerHandleErrorZ_free(_res_conv);
 }
@@ -13658,7 +13977,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NonePeerHandleErro
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NonePeerHandleErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_NonePeerHandleErrorZ _res_conv = *(LDKCResult_NonePeerHandleErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_NonePeerHandleErrorZ _res_conv = *(LDKCResult_NonePeerHandleErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_NonePeerHandleErrorZ_free(_res_conv);
 }
@@ -13688,7 +14009,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1boolPeerHandleErro
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1boolPeerHandleErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_boolPeerHandleErrorZ _res_conv = *(LDKCResult_boolPeerHandleErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_boolPeerHandleErrorZ _res_conv = *(LDKCResult_boolPeerHandleErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_boolPeerHandleErrorZ_free(_res_conv);
 }
@@ -13722,7 +14045,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeIdDecodeErrorZ
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NodeIdDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_NodeIdDecodeErrorZ _res_conv = *(LDKCResult_NodeIdDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_NodeIdDecodeErrorZ _res_conv = *(LDKCResult_NodeIdDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_NodeIdDecodeErrorZ_free(_res_conv);
 }
@@ -13735,7 +14060,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeIdDecodeErrorZ
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1AccessZ_1some(JNIEnv *env, jclass clz, int64_t o) {
-       LDKAccess o_conv = *(LDKAccess*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       CHECK_ACCESS(o_ptr);
+       LDKAccess o_conv = *(LDKAccess*)(o_ptr);
        if (o_conv.free == LDKAccess_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKAccess_JCalls_cloned(&o_conv);
@@ -13755,7 +14082,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1AccessZ_1none(JNIE
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1AccessZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCOption_AccessZ _res_conv = *(LDKCOption_AccessZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCOption_AccessZ _res_conv = *(LDKCOption_AccessZ*)(_res_ptr);
        FREE((void*)_res);
        COption_AccessZ_free(_res_conv);
 }
@@ -13782,7 +14111,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1DirectionalChannel
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1DirectionalChannelInfoDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_DirectionalChannelInfoDecodeErrorZ _res_conv = *(LDKCResult_DirectionalChannelInfoDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_DirectionalChannelInfoDecodeErrorZ _res_conv = *(LDKCResult_DirectionalChannelInfoDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_DirectionalChannelInfoDecodeErrorZ_free(_res_conv);
 }
@@ -13816,7 +14147,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelInfoDecodeE
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelInfoDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_ChannelInfoDecodeErrorZ _res_conv = *(LDKCResult_ChannelInfoDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_ChannelInfoDecodeErrorZ _res_conv = *(LDKCResult_ChannelInfoDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_ChannelInfoDecodeErrorZ_free(_res_conv);
 }
@@ -13850,7 +14183,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RoutingFeesDecodeE
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1RoutingFeesDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_RoutingFeesDecodeErrorZ _res_conv = *(LDKCResult_RoutingFeesDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_RoutingFeesDecodeErrorZ _res_conv = *(LDKCResult_RoutingFeesDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_RoutingFeesDecodeErrorZ_free(_res_conv);
 }
@@ -13884,7 +14219,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAnnouncementIn
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAnnouncementInfoDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_NodeAnnouncementInfoDecodeErrorZ _res_conv = *(LDKCResult_NodeAnnouncementInfoDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_NodeAnnouncementInfoDecodeErrorZ _res_conv = *(LDKCResult_NodeAnnouncementInfoDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_NodeAnnouncementInfoDecodeErrorZ_free(_res_conv);
 }
@@ -13934,7 +14271,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeInfoDecodeErro
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NodeInfoDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_NodeInfoDecodeErrorZ _res_conv = *(LDKCResult_NodeInfoDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_NodeInfoDecodeErrorZ _res_conv = *(LDKCResult_NodeInfoDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_NodeInfoDecodeErrorZ_free(_res_conv);
 }
@@ -13968,7 +14307,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NetworkGraphDecode
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NetworkGraphDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_NetworkGraphDecodeErrorZ _res_conv = *(LDKCResult_NetworkGraphDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_NetworkGraphDecodeErrorZ _res_conv = *(LDKCResult_NetworkGraphDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_NetworkGraphDecodeErrorZ_free(_res_conv);
 }
@@ -13990,7 +14331,9 @@ 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];
-               LDKNetAddress o_conv_12_conv = *(LDKNetAddress*)(((uint64_t)o_conv_12) & ~1);
+               void* o_conv_12_ptr = (void*)(((uint64_t)o_conv_12) & ~1);
+               CHECK_ACCESS(o_conv_12_ptr);
+               LDKNetAddress o_conv_12_conv = *(LDKNetAddress*)(o_conv_12_ptr);
                o_conv_12_conv = NetAddress_clone((LDKNetAddress*)(((uint64_t)o_conv_12) & ~1));
                o_constr.data[m] = o_conv_12_conv;
        }
@@ -14010,7 +14353,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1CVec_1NetAddressZZ
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1CVec_1NetAddressZZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCOption_CVec_NetAddressZZ _res_conv = *(LDKCOption_CVec_NetAddressZZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCOption_CVec_NetAddressZZ _res_conv = *(LDKCOption_CVec_NetAddressZZ*)(_res_ptr);
        FREE((void*)_res);
        COption_CVec_NetAddressZZ_free(_res_conv);
 }
@@ -14024,7 +14369,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1CVec_1NetAddressZZ
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NetAddressu8Z_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKNetAddress o_conv = *(LDKNetAddress*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       CHECK_ACCESS(o_ptr);
+       LDKNetAddress o_conv = *(LDKNetAddress*)(o_ptr);
        o_conv = NetAddress_clone((LDKNetAddress*)(((uint64_t)o) & ~1));
        LDKCResult_NetAddressu8Z* ret_conv = MALLOC(sizeof(LDKCResult_NetAddressu8Z), "LDKCResult_NetAddressu8Z");
        *ret_conv = CResult_NetAddressu8Z_ok(o_conv);
@@ -14039,7 +14386,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NetAddressu8Z_1err
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NetAddressu8Z_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_NetAddressu8Z _res_conv = *(LDKCResult_NetAddressu8Z*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_NetAddressu8Z _res_conv = *(LDKCResult_NetAddressu8Z*)(_res_ptr);
        FREE((void*)_res);
        CResult_NetAddressu8Z_free(_res_conv);
 }
@@ -14052,7 +14401,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NetAddressu8Z_1clo
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CResult_1NetAddressu8ZDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKCResult_NetAddressu8Z o_conv = *(LDKCResult_NetAddressu8Z*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       CHECK_ACCESS(o_ptr);
+       LDKCResult_NetAddressu8Z o_conv = *(LDKCResult_NetAddressu8Z*)(o_ptr);
        o_conv = CResult_NetAddressu8Z_clone((LDKCResult_NetAddressu8Z*)(((uint64_t)o) & ~1));
        LDKCResult_CResult_NetAddressu8ZDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CResult_NetAddressu8ZDecodeErrorZ), "LDKCResult_CResult_NetAddressu8ZDecodeErrorZ");
        *ret_conv = CResult_CResult_NetAddressu8ZDecodeErrorZ_ok(o_conv);
@@ -14071,7 +14422,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CResult_1NetAddres
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1CResult_1NetAddressu8ZDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_CResult_NetAddressu8ZDecodeErrorZ _res_conv = *(LDKCResult_CResult_NetAddressu8ZDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_CResult_NetAddressu8ZDecodeErrorZ _res_conv = *(LDKCResult_CResult_NetAddressu8ZDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_CResult_NetAddressu8ZDecodeErrorZ_free(_res_conv);
 }
@@ -14084,7 +14437,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CResult_1NetAddres
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NetAddressDecodeErrorZ_1ok(JNIEnv *env, jclass clz, int64_t o) {
-       LDKNetAddress o_conv = *(LDKNetAddress*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       CHECK_ACCESS(o_ptr);
+       LDKNetAddress o_conv = *(LDKNetAddress*)(o_ptr);
        o_conv = NetAddress_clone((LDKNetAddress*)(((uint64_t)o) & ~1));
        LDKCResult_NetAddressDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NetAddressDecodeErrorZ), "LDKCResult_NetAddressDecodeErrorZ");
        *ret_conv = CResult_NetAddressDecodeErrorZ_ok(o_conv);
@@ -14103,7 +14458,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NetAddressDecodeEr
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NetAddressDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_NetAddressDecodeErrorZ _res_conv = *(LDKCResult_NetAddressDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_NetAddressDecodeErrorZ _res_conv = *(LDKCResult_NetAddressDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_NetAddressDecodeErrorZ_free(_res_conv);
 }
@@ -14213,7 +14570,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1AcceptChannelDecod
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1AcceptChannelDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_AcceptChannelDecodeErrorZ _res_conv = *(LDKCResult_AcceptChannelDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_AcceptChannelDecodeErrorZ _res_conv = *(LDKCResult_AcceptChannelDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_AcceptChannelDecodeErrorZ_free(_res_conv);
 }
@@ -14247,7 +14606,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1AnnouncementSignat
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1AnnouncementSignaturesDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_AnnouncementSignaturesDecodeErrorZ _res_conv = *(LDKCResult_AnnouncementSignaturesDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_AnnouncementSignaturesDecodeErrorZ _res_conv = *(LDKCResult_AnnouncementSignaturesDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_AnnouncementSignaturesDecodeErrorZ_free(_res_conv);
 }
@@ -14281,7 +14642,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelReestablish
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelReestablishDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_ChannelReestablishDecodeErrorZ _res_conv = *(LDKCResult_ChannelReestablishDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_ChannelReestablishDecodeErrorZ _res_conv = *(LDKCResult_ChannelReestablishDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_ChannelReestablishDecodeErrorZ_free(_res_conv);
 }
@@ -14315,7 +14678,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ClosingSignedDecod
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ClosingSignedDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_ClosingSignedDecodeErrorZ _res_conv = *(LDKCResult_ClosingSignedDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_ClosingSignedDecodeErrorZ _res_conv = *(LDKCResult_ClosingSignedDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_ClosingSignedDecodeErrorZ_free(_res_conv);
 }
@@ -14349,7 +14714,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ClosingSignedFeeRa
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ClosingSignedFeeRangeDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_ClosingSignedFeeRangeDecodeErrorZ _res_conv = *(LDKCResult_ClosingSignedFeeRangeDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_ClosingSignedFeeRangeDecodeErrorZ _res_conv = *(LDKCResult_ClosingSignedFeeRangeDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_ClosingSignedFeeRangeDecodeErrorZ_free(_res_conv);
 }
@@ -14383,7 +14750,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1CommitmentSignedDe
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1CommitmentSignedDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_CommitmentSignedDecodeErrorZ _res_conv = *(LDKCResult_CommitmentSignedDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_CommitmentSignedDecodeErrorZ _res_conv = *(LDKCResult_CommitmentSignedDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_CommitmentSignedDecodeErrorZ_free(_res_conv);
 }
@@ -14417,7 +14786,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1FundingCreatedDeco
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1FundingCreatedDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_FundingCreatedDecodeErrorZ _res_conv = *(LDKCResult_FundingCreatedDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_FundingCreatedDecodeErrorZ _res_conv = *(LDKCResult_FundingCreatedDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_FundingCreatedDecodeErrorZ_free(_res_conv);
 }
@@ -14451,7 +14822,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1FundingSignedDecod
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1FundingSignedDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_FundingSignedDecodeErrorZ _res_conv = *(LDKCResult_FundingSignedDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_FundingSignedDecodeErrorZ _res_conv = *(LDKCResult_FundingSignedDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_FundingSignedDecodeErrorZ_free(_res_conv);
 }
@@ -14485,7 +14858,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1FundingLockedDecod
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1FundingLockedDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_FundingLockedDecodeErrorZ _res_conv = *(LDKCResult_FundingLockedDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_FundingLockedDecodeErrorZ _res_conv = *(LDKCResult_FundingLockedDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_FundingLockedDecodeErrorZ_free(_res_conv);
 }
@@ -14519,7 +14894,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InitDecodeErrorZ_1
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1InitDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_InitDecodeErrorZ _res_conv = *(LDKCResult_InitDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_InitDecodeErrorZ _res_conv = *(LDKCResult_InitDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_InitDecodeErrorZ_free(_res_conv);
 }
@@ -14553,7 +14930,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1OpenChannelDecodeE
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1OpenChannelDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_OpenChannelDecodeErrorZ _res_conv = *(LDKCResult_OpenChannelDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_OpenChannelDecodeErrorZ _res_conv = *(LDKCResult_OpenChannelDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_OpenChannelDecodeErrorZ_free(_res_conv);
 }
@@ -14587,7 +14966,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1RevokeAndACKDecode
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1RevokeAndACKDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_RevokeAndACKDecodeErrorZ _res_conv = *(LDKCResult_RevokeAndACKDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_RevokeAndACKDecodeErrorZ _res_conv = *(LDKCResult_RevokeAndACKDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_RevokeAndACKDecodeErrorZ_free(_res_conv);
 }
@@ -14621,7 +15002,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownDecodeErro
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ShutdownDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_ShutdownDecodeErrorZ _res_conv = *(LDKCResult_ShutdownDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_ShutdownDecodeErrorZ _res_conv = *(LDKCResult_ShutdownDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_ShutdownDecodeErrorZ_free(_res_conv);
 }
@@ -14655,7 +15038,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFailHTLCDeco
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFailHTLCDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_UpdateFailHTLCDecodeErrorZ _res_conv = *(LDKCResult_UpdateFailHTLCDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_UpdateFailHTLCDecodeErrorZ _res_conv = *(LDKCResult_UpdateFailHTLCDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_UpdateFailHTLCDecodeErrorZ_free(_res_conv);
 }
@@ -14689,7 +15074,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFailMalforme
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFailMalformedHTLCDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ _res_conv = *(LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ _res_conv = *(LDKCResult_UpdateFailMalformedHTLCDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_UpdateFailMalformedHTLCDecodeErrorZ_free(_res_conv);
 }
@@ -14723,7 +15110,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFeeDecodeErr
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFeeDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_UpdateFeeDecodeErrorZ _res_conv = *(LDKCResult_UpdateFeeDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_UpdateFeeDecodeErrorZ _res_conv = *(LDKCResult_UpdateFeeDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_UpdateFeeDecodeErrorZ_free(_res_conv);
 }
@@ -14757,7 +15146,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFulfillHTLCD
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateFulfillHTLCDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_UpdateFulfillHTLCDecodeErrorZ _res_conv = *(LDKCResult_UpdateFulfillHTLCDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_UpdateFulfillHTLCDecodeErrorZ _res_conv = *(LDKCResult_UpdateFulfillHTLCDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_UpdateFulfillHTLCDecodeErrorZ_free(_res_conv);
 }
@@ -14791,7 +15182,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateAddHTLCDecod
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1UpdateAddHTLCDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_UpdateAddHTLCDecodeErrorZ _res_conv = *(LDKCResult_UpdateAddHTLCDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_UpdateAddHTLCDecodeErrorZ _res_conv = *(LDKCResult_UpdateAddHTLCDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_UpdateAddHTLCDecodeErrorZ_free(_res_conv);
 }
@@ -14825,7 +15218,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PingDecodeErrorZ_1
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PingDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_PingDecodeErrorZ _res_conv = *(LDKCResult_PingDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_PingDecodeErrorZ _res_conv = *(LDKCResult_PingDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_PingDecodeErrorZ_free(_res_conv);
 }
@@ -14859,7 +15254,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PongDecodeErrorZ_1
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PongDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_PongDecodeErrorZ _res_conv = *(LDKCResult_PongDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_PongDecodeErrorZ _res_conv = *(LDKCResult_PongDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_PongDecodeErrorZ_free(_res_conv);
 }
@@ -14893,7 +15290,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedChannelAnn
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedChannelAnnouncementDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ _res_conv = *(LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ _res_conv = *(LDKCResult_UnsignedChannelAnnouncementDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_UnsignedChannelAnnouncementDecodeErrorZ_free(_res_conv);
 }
@@ -14927,7 +15326,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelAnnouncemen
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelAnnouncementDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_ChannelAnnouncementDecodeErrorZ _res_conv = *(LDKCResult_ChannelAnnouncementDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_ChannelAnnouncementDecodeErrorZ _res_conv = *(LDKCResult_ChannelAnnouncementDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_ChannelAnnouncementDecodeErrorZ_free(_res_conv);
 }
@@ -14961,7 +15362,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedChannelUpd
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedChannelUpdateDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_UnsignedChannelUpdateDecodeErrorZ _res_conv = *(LDKCResult_UnsignedChannelUpdateDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_UnsignedChannelUpdateDecodeErrorZ _res_conv = *(LDKCResult_UnsignedChannelUpdateDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_UnsignedChannelUpdateDecodeErrorZ_free(_res_conv);
 }
@@ -14995,7 +15398,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelUpdateDecod
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ChannelUpdateDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_ChannelUpdateDecodeErrorZ _res_conv = *(LDKCResult_ChannelUpdateDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_ChannelUpdateDecodeErrorZ _res_conv = *(LDKCResult_ChannelUpdateDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_ChannelUpdateDecodeErrorZ_free(_res_conv);
 }
@@ -15029,7 +15434,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ErrorMessageDecode
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ErrorMessageDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_ErrorMessageDecodeErrorZ _res_conv = *(LDKCResult_ErrorMessageDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_ErrorMessageDecodeErrorZ _res_conv = *(LDKCResult_ErrorMessageDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_ErrorMessageDecodeErrorZ_free(_res_conv);
 }
@@ -15063,7 +15470,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedNodeAnnoun
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1UnsignedNodeAnnouncementDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ _res_conv = *(LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ _res_conv = *(LDKCResult_UnsignedNodeAnnouncementDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_UnsignedNodeAnnouncementDecodeErrorZ_free(_res_conv);
 }
@@ -15097,7 +15506,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAnnouncementDe
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1NodeAnnouncementDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_NodeAnnouncementDecodeErrorZ _res_conv = *(LDKCResult_NodeAnnouncementDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_NodeAnnouncementDecodeErrorZ _res_conv = *(LDKCResult_NodeAnnouncementDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_NodeAnnouncementDecodeErrorZ_free(_res_conv);
 }
@@ -15131,7 +15542,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1QueryShortChannelI
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1QueryShortChannelIdsDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_QueryShortChannelIdsDecodeErrorZ _res_conv = *(LDKCResult_QueryShortChannelIdsDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_QueryShortChannelIdsDecodeErrorZ _res_conv = *(LDKCResult_QueryShortChannelIdsDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_QueryShortChannelIdsDecodeErrorZ_free(_res_conv);
 }
@@ -15165,7 +15578,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ReplyShortChannelI
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ReplyShortChannelIdsEndDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ _res_conv = *(LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ _res_conv = *(LDKCResult_ReplyShortChannelIdsEndDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_ReplyShortChannelIdsEndDecodeErrorZ_free(_res_conv);
 }
@@ -15199,7 +15614,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1QueryChannelRangeD
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1QueryChannelRangeDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_QueryChannelRangeDecodeErrorZ _res_conv = *(LDKCResult_QueryChannelRangeDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_QueryChannelRangeDecodeErrorZ _res_conv = *(LDKCResult_QueryChannelRangeDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_QueryChannelRangeDecodeErrorZ_free(_res_conv);
 }
@@ -15233,7 +15650,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1ReplyChannelRangeD
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1ReplyChannelRangeDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_ReplyChannelRangeDecodeErrorZ _res_conv = *(LDKCResult_ReplyChannelRangeDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_ReplyChannelRangeDecodeErrorZ _res_conv = *(LDKCResult_ReplyChannelRangeDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_ReplyChannelRangeDecodeErrorZ_free(_res_conv);
 }
@@ -15267,7 +15686,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1GossipTimestampFil
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1GossipTimestampFilterDecodeErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_GossipTimestampFilterDecodeErrorZ _res_conv = *(LDKCResult_GossipTimestampFilterDecodeErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_GossipTimestampFilterDecodeErrorZ _res_conv = *(LDKCResult_GossipTimestampFilterDecodeErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_GossipTimestampFilterDecodeErrorZ_free(_res_conv);
 }
@@ -15290,7 +15711,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceSignOrCreat
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceSignOrCreationErrorZ_1err(JNIEnv *env, jclass clz, int64_t e) {
-       LDKSignOrCreationError e_conv = *(LDKSignOrCreationError*)(((uint64_t)e) & ~1);
+       void* e_ptr = (void*)(((uint64_t)e) & ~1);
+       CHECK_ACCESS(e_ptr);
+       LDKSignOrCreationError e_conv = *(LDKSignOrCreationError*)(e_ptr);
        e_conv = SignOrCreationError_clone((LDKSignOrCreationError*)(((uint64_t)e) & ~1));
        LDKCResult_InvoiceSignOrCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceSignOrCreationErrorZ), "LDKCResult_InvoiceSignOrCreationErrorZ");
        *ret_conv = CResult_InvoiceSignOrCreationErrorZ_err(e_conv);
@@ -15299,7 +15722,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceSignOrCreat
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceSignOrCreationErrorZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_InvoiceSignOrCreationErrorZ _res_conv = *(LDKCResult_InvoiceSignOrCreationErrorZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_InvoiceSignOrCreationErrorZ _res_conv = *(LDKCResult_InvoiceSignOrCreationErrorZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_InvoiceSignOrCreationErrorZ_free(_res_conv);
 }
@@ -15312,7 +15737,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceSignOrCreat
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1FilterZ_1some(JNIEnv *env, jclass clz, int64_t o) {
-       LDKFilter o_conv = *(LDKFilter*)(((uint64_t)o) & ~1);
+       void* o_ptr = (void*)(((uint64_t)o) & ~1);
+       CHECK_ACCESS(o_ptr);
+       LDKFilter o_conv = *(LDKFilter*)(o_ptr);
        if (o_conv.free == LDKFilter_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKFilter_JCalls_cloned(&o_conv);
@@ -15332,7 +15759,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1FilterZ_1none(JNIE
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1FilterZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCOption_FilterZ _res_conv = *(LDKCOption_FilterZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCOption_FilterZ _res_conv = *(LDKCOption_FilterZ*)(_res_ptr);
        FREE((void*)_res);
        COption_FilterZ_free(_res_conv);
 }
@@ -15355,7 +15784,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1LockedChannelMonit
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1LockedChannelMonitorNoneZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
        if ((_res & 1) != 0) return;
-       LDKCResult_LockedChannelMonitorNoneZ _res_conv = *(LDKCResult_LockedChannelMonitorNoneZ*)(((uint64_t)_res) & ~1);
+       void* _res_ptr = (void*)(((uint64_t)_res) & ~1);
+       CHECK_ACCESS(_res_ptr);
+       LDKCResult_LockedChannelMonitorNoneZ _res_conv = *(LDKCResult_LockedChannelMonitorNoneZ*)(_res_ptr);
        FREE((void*)_res);
        CResult_LockedChannelMonitorNoneZ_free(_res_conv);
 }
@@ -15381,7 +15812,9 @@ 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;
-       LDKPaymentPurpose this_ptr_conv = *(LDKPaymentPurpose*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKPaymentPurpose this_ptr_conv = *(LDKPaymentPurpose*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        PaymentPurpose_free(this_ptr_conv);
 }
@@ -15419,7 +15852,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentPurpose_1spontaneous
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ClosureReason_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKClosureReason this_ptr_conv = *(LDKClosureReason*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKClosureReason this_ptr_conv = *(LDKClosureReason*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        ClosureReason_free(this_ptr_conv);
 }
@@ -15494,7 +15929,9 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ClosureReason_1write(JN
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Event_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKEvent this_ptr_conv = *(LDKEvent*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKEvent this_ptr_conv = *(LDKEvent*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        Event_free(this_ptr_conv);
 }
@@ -15525,7 +15962,9 @@ 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);
-       LDKPaymentPurpose purpose_conv = *(LDKPaymentPurpose*)(((uint64_t)purpose) & ~1);
+       void* purpose_ptr = (void*)(((uint64_t)purpose) & ~1);
+       CHECK_ACCESS(purpose_ptr);
+       LDKPaymentPurpose purpose_conv = *(LDKPaymentPurpose*)(purpose_ptr);
        purpose_conv = PaymentPurpose_clone((LDKPaymentPurpose*)(((uint64_t)purpose) & ~1));
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_payment_received(payment_hash_ref, amt, purpose_conv);
@@ -15550,7 +15989,9 @@ 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);
-       LDKCOption_NetworkUpdateZ network_update_conv = *(LDKCOption_NetworkUpdateZ*)(((uint64_t)network_update) & ~1);
+       void* network_update_ptr = (void*)(((uint64_t)network_update) & ~1);
+       CHECK_ACCESS(network_update_ptr);
+       LDKCOption_NetworkUpdateZ network_update_conv = *(LDKCOption_NetworkUpdateZ*)(network_update_ptr);
        network_update_conv = COption_NetworkUpdateZ_clone((LDKCOption_NetworkUpdateZ*)(((uint64_t)network_update) & ~1));
        LDKCVec_RouteHopZ path_constr;
        path_constr.datalen = (*env)->GetArrayLength(env, path);
@@ -15568,7 +16009,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1payment_1path_1faile
                path_constr.data[k] = path_conv_10_conv;
        }
        (*env)->ReleaseLongArrayElements(env, path, path_vals, 0);
-       LDKCOption_u64Z short_channel_id_conv = *(LDKCOption_u64Z*)(((uint64_t)short_channel_id) & ~1);
+       void* short_channel_id_ptr = (void*)(((uint64_t)short_channel_id) & ~1);
+       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*)(((uint64_t)short_channel_id) & ~1));
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_payment_path_failed(payment_hash_ref, rejected_by_dest, network_update_conv, all_paths_failed, path_constr, short_channel_id_conv);
@@ -15593,7 +16036,9 @@ 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];
-               LDKSpendableOutputDescriptor outputs_conv_27_conv = *(LDKSpendableOutputDescriptor*)(((uint64_t)outputs_conv_27) & ~1);
+               void* outputs_conv_27_ptr = (void*)(((uint64_t)outputs_conv_27) & ~1);
+               CHECK_ACCESS(outputs_conv_27_ptr);
+               LDKSpendableOutputDescriptor outputs_conv_27_conv = *(LDKSpendableOutputDescriptor*)(outputs_conv_27_ptr);
                outputs_conv_27_conv = SpendableOutputDescriptor_clone((LDKSpendableOutputDescriptor*)(((uint64_t)outputs_conv_27) & ~1));
                outputs_constr.data[b] = outputs_conv_27_conv;
        }
@@ -15605,7 +16050,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1spendable_1outputs(J
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Event_1payment_1forwarded(JNIEnv *env, jclass clz, int64_t fee_earned_msat, jboolean claim_from_onchain_tx) {
-       LDKCOption_u64Z fee_earned_msat_conv = *(LDKCOption_u64Z*)(((uint64_t)fee_earned_msat) & ~1);
+       void* fee_earned_msat_ptr = (void*)(((uint64_t)fee_earned_msat) & ~1);
+       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*)(((uint64_t)fee_earned_msat) & ~1));
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_payment_forwarded(fee_earned_msat_conv, claim_from_onchain_tx);
@@ -15617,7 +16064,9 @@ 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);
-       LDKClosureReason reason_conv = *(LDKClosureReason*)(((uint64_t)reason) & ~1);
+       void* reason_ptr = (void*)(((uint64_t)reason) & ~1);
+       CHECK_ACCESS(reason_ptr);
+       LDKClosureReason reason_conv = *(LDKClosureReason*)(reason_ptr);
        reason_conv = ClosureReason_clone((LDKClosureReason*)(((uint64_t)reason) & ~1));
        LDKEvent *ret_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
        *ret_copy = Event_channel_closed(channel_id_ref, user_channel_id, reason_conv);
@@ -15651,7 +16100,9 @@ JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_Event_1write(JNIEnv *en
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKMessageSendEvent this_ptr_conv = *(LDKMessageSendEvent*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKMessageSendEvent this_ptr_conv = *(LDKMessageSendEvent*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        MessageSendEvent_free(this_ptr_conv);
 }
@@ -15873,7 +16324,9 @@ 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);
-       LDKErrorAction action_conv = *(LDKErrorAction*)(((uint64_t)action) & ~1);
+       void* action_ptr = (void*)(((uint64_t)action) & ~1);
+       CHECK_ACCESS(action_ptr);
+       LDKErrorAction action_conv = *(LDKErrorAction*)(action_ptr);
        action_conv = ErrorAction_clone((LDKErrorAction*)(((uint64_t)action) & ~1));
        LDKMessageSendEvent *ret_copy = MALLOC(sizeof(LDKMessageSendEvent), "LDKMessageSendEvent");
        *ret_copy = MessageSendEvent_handle_error(node_id_ref, action_conv);
@@ -15925,28 +16378,36 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageSendEvent_1send_1rep
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_MessageSendEventsProvider_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKMessageSendEventsProvider this_ptr_conv = *(LDKMessageSendEventsProvider*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKMessageSendEventsProvider this_ptr_conv = *(LDKMessageSendEventsProvider*)(this_ptr_ptr);
        FREE((void*)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;
-       LDKEventsProvider this_ptr_conv = *(LDKEventsProvider*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKEventsProvider this_ptr_conv = *(LDKEventsProvider*)(this_ptr_ptr);
        FREE((void*)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;
-       LDKEventHandler this_ptr_conv = *(LDKEventHandler*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKEventHandler this_ptr_conv = *(LDKEventHandler*)(this_ptr_ptr);
        FREE((void*)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;
-       LDKAPIError this_ptr_conv = *(LDKAPIError*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKAPIError this_ptr_conv = *(LDKAPIError*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        APIError_free(this_ptr_conv);
 }
@@ -16098,7 +16559,9 @@ JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_Level_1max(JNIEnv *env, jcla
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Logger_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKLogger this_ptr_conv = *(LDKLogger*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKLogger this_ptr_conv = *(LDKLogger*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        Logger_free(this_ptr_conv);
 }
@@ -16750,21 +17213,27 @@ 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;
-       LDKAccess this_ptr_conv = *(LDKAccess*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKAccess this_ptr_conv = *(LDKAccess*)(this_ptr_ptr);
        FREE((void*)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;
-       LDKListen this_ptr_conv = *(LDKListen*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKListen this_ptr_conv = *(LDKListen*)(this_ptr_ptr);
        FREE((void*)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;
-       LDKConfirm this_ptr_conv = *(LDKConfirm*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKConfirm this_ptr_conv = *(LDKConfirm*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        Confirm_free(this_ptr_conv);
 }
@@ -16787,14 +17256,18 @@ 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;
-       LDKWatch this_ptr_conv = *(LDKWatch*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKWatch this_ptr_conv = *(LDKWatch*)(this_ptr_ptr);
        FREE((void*)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;
-       LDKFilter this_ptr_conv = *(LDKFilter*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKFilter this_ptr_conv = *(LDKFilter*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        Filter_free(this_ptr_conv);
 }
@@ -16917,7 +17390,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_WatchedOutput_1hash(JNIEnv
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_BroadcasterInterface_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKBroadcasterInterface this_ptr_conv = *(LDKBroadcasterInterface*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKBroadcasterInterface this_ptr_conv = *(LDKBroadcasterInterface*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        BroadcasterInterface_free(this_ptr_conv);
 }
@@ -16952,14 +17427,18 @@ JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ConfirmationTarget_1eq(JNI
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_FeeEstimator_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKFeeEstimator this_ptr_conv = *(LDKFeeEstimator*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKFeeEstimator this_ptr_conv = *(LDKFeeEstimator*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        FeeEstimator_free(this_ptr_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;
-       LDKPersist this_ptr_conv = *(LDKPersist*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKPersist this_ptr_conv = *(LDKPersist*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        Persist_free(this_ptr_conv);
 }
@@ -16979,7 +17458,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChainMonitor_1free(JNIEnv *env
 }
 
 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) {
-       LDKCOption_FilterZ chain_source_conv = *(LDKCOption_FilterZ*)(((uint64_t)chain_source) & ~1);
+       void* chain_source_ptr = (void*)(((uint64_t)chain_source) & ~1);
+       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
        if (chain_source_conv.tag == LDKCOption_FilterZ_Some) {
                // Manually implement clone for Java trait instances
@@ -16988,22 +17469,30 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChainMonitor_1new(JNIEnv *e
                        LDKFilter_JCalls_cloned(&chain_source_conv.some);
                }
        }
-       LDKBroadcasterInterface broadcaster_conv = *(LDKBroadcasterInterface*)(((uint64_t)broadcaster) & ~1);
+       void* broadcaster_ptr = (void*)(((uint64_t)broadcaster) & ~1);
+       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);
        }
-       LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       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);
        }
-       LDKFeeEstimator feeest_conv = *(LDKFeeEstimator*)(((uint64_t)feeest) & ~1);
+       void* feeest_ptr = (void*)(((uint64_t)feeest) & ~1);
+       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);
        }
-       LDKPersist persister_conv = *(LDKPersist*)(((uint64_t)persister) & ~1);
+       void* persister_ptr = (void*)(((uint64_t)persister) & ~1);
+       CHECK_ACCESS(persister_ptr);
+       LDKPersist persister_conv = *(LDKPersist*)(persister_ptr);
        if (persister_conv.free == LDKPersist_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKPersist_JCalls_cloned(&persister_conv);
@@ -17043,7 +17532,7 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChainMonitor_1get_1cla
        int64_t *ret_arr_ptr = (*env)->GetPrimitiveArrayCritical(env, ret_arr, NULL);
        for (size_t j = 0; j < ret_var.datalen; j++) {
                LDKBalance *ret_conv_9_copy = MALLOC(sizeof(LDKBalance), "LDKBalance");
-               *ret_conv_9_copy = Balance_clone(&ret_var.data[j]);
+               *ret_conv_9_copy = ret_var.data[j];
                uint64_t ret_conv_9_ref = (uint64_t)ret_conv_9_copy;
                ret_arr_ptr[j] = ret_conv_9_ref;
        }
@@ -17203,7 +17692,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MonitorUpdateError_1clone(J
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_MonitorEvent_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKMonitorEvent this_ptr_conv = *(LDKMonitorEvent*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKMonitorEvent this_ptr_conv = *(LDKMonitorEvent*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        MonitorEvent_free(this_ptr_conv);
 }
@@ -17282,7 +17773,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_HTLCUpdate_1read(JNIEnv *en
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Balance_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKBalance this_ptr_conv = *(LDKBalance*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKBalance this_ptr_conv = *(LDKBalance*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        Balance_free(this_ptr_conv);
 }
@@ -17369,9 +17862,15 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1update_1mon
        LDKChannelMonitorUpdate updates_conv;
        updates_conv.inner = (void*)(updates & (~1));
        updates_conv.is_owned = false;
-       LDKBroadcasterInterface* broadcaster_conv = (LDKBroadcasterInterface*)(((uint64_t)broadcaster) & ~1);
-       LDKFeeEstimator* fee_estimator_conv = (LDKFeeEstimator*)(((uint64_t)fee_estimator) & ~1);
-       LDKLogger* logger_conv = (LDKLogger*)(((uint64_t)logger) & ~1);
+       void* broadcaster_ptr = (void*)(((uint64_t)broadcaster) & ~1);
+       if (!(broadcaster & 1)) { CHECK_ACCESS(broadcaster_ptr); }
+       LDKBroadcasterInterface* broadcaster_conv = (LDKBroadcasterInterface*)broadcaster_ptr;
+       void* fee_estimator_ptr = (void*)(((uint64_t)fee_estimator) & ~1);
+       if (!(fee_estimator & 1)) { CHECK_ACCESS(fee_estimator_ptr); }
+       LDKFeeEstimator* fee_estimator_conv = (LDKFeeEstimator*)fee_estimator_ptr;
+       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       if (!(logger & 1)) { CHECK_ACCESS(logger_ptr); }
+       LDKLogger* logger_conv = (LDKLogger*)logger_ptr;
        LDKCResult_NoneMonitorUpdateErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneMonitorUpdateErrorZ), "LDKCResult_NoneMonitorUpdateErrorZ");
        *ret_conv = ChannelMonitor_update_monitor(&this_arg_conv, &updates_conv, broadcaster_conv, fee_estimator_conv, logger_conv);
        return (uint64_t)ret_conv;
@@ -17415,7 +17914,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1load_1outputs_
        LDKChannelMonitor this_arg_conv;
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
-       LDKFilter* filter_conv = (LDKFilter*)(((uint64_t)filter) & ~1);
+       void* filter_ptr = (void*)(((uint64_t)filter) & ~1);
+       if (!(filter & 1)) { CHECK_ACCESS(filter_ptr); }
+       LDKFilter* filter_conv = (LDKFilter*)filter_ptr;
        ChannelMonitor_load_outputs_to_watch(&this_arg_conv, filter_conv);
 }
 
@@ -17428,7 +17929,7 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1get_1a
        int64_t *ret_arr_ptr = (*env)->GetPrimitiveArrayCritical(env, ret_arr, NULL);
        for (size_t o = 0; o < ret_var.datalen; o++) {
                LDKMonitorEvent *ret_conv_14_copy = MALLOC(sizeof(LDKMonitorEvent), "LDKMonitorEvent");
-               *ret_conv_14_copy = MonitorEvent_clone(&ret_var.data[o]);
+               *ret_conv_14_copy = ret_var.data[o];
                uint64_t ret_conv_14_ref = (uint64_t)ret_conv_14_copy;
                ret_arr_ptr[o] = ret_conv_14_ref;
        }
@@ -17446,7 +17947,7 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1get_1a
        int64_t *ret_arr_ptr = (*env)->GetPrimitiveArrayCritical(env, ret_arr, NULL);
        for (size_t h = 0; h < ret_var.datalen; h++) {
                LDKEvent *ret_conv_7_copy = MALLOC(sizeof(LDKEvent), "LDKEvent");
-               *ret_conv_7_copy = Event_clone(&ret_var.data[h]);
+               *ret_conv_7_copy = ret_var.data[h];
                uint64_t ret_conv_7_ref = (uint64_t)ret_conv_7_copy;
                ret_arr_ptr[h] = ret_conv_7_ref;
        }
@@ -17459,7 +17960,9 @@ JNIEXPORT jobjectArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1get_1l
        LDKChannelMonitor this_arg_conv;
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
-       LDKLogger* logger_conv = (LDKLogger*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       if (!(logger & 1)) { 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 = (*env)->NewObjectArray(env, ret_var.datalen, arr_of_B_clz, NULL);
        ;
@@ -17491,22 +17994,30 @@ 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];
-               LDKC2Tuple_usizeTransactionZ txdata_conv_28_conv = *(LDKC2Tuple_usizeTransactionZ*)(((uint64_t)txdata_conv_28) & ~1);
+               void* txdata_conv_28_ptr = (void*)(((uint64_t)txdata_conv_28) & ~1);
+               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*)(((uint64_t)txdata_conv_28) & ~1));
                txdata_constr.data[c] = txdata_conv_28_conv;
        }
        (*env)->ReleaseLongArrayElements(env, txdata, txdata_vals, 0);
-       LDKBroadcasterInterface broadcaster_conv = *(LDKBroadcasterInterface*)(((uint64_t)broadcaster) & ~1);
+       void* broadcaster_ptr = (void*)(((uint64_t)broadcaster) & ~1);
+       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);
        }
-       LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(((uint64_t)fee_estimator) & ~1);
+       void* fee_estimator_ptr = (void*)(((uint64_t)fee_estimator) & ~1);
+       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);
        }
-       LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       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);
@@ -17532,17 +18043,23 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1block_1disconn
        CHECK((*env)->GetArrayLength(env, header) == 80);
        (*env)->GetByteArrayRegion(env, header, 0, 80, header_arr);
        unsigned char (*header_ref)[80] = &header_arr;
-       LDKBroadcasterInterface broadcaster_conv = *(LDKBroadcasterInterface*)(((uint64_t)broadcaster) & ~1);
+       void* broadcaster_ptr = (void*)(((uint64_t)broadcaster) & ~1);
+       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);
        }
-       LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(((uint64_t)fee_estimator) & ~1);
+       void* fee_estimator_ptr = (void*)(((uint64_t)fee_estimator) & ~1);
+       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);
        }
-       LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       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);
@@ -17567,22 +18084,30 @@ 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];
-               LDKC2Tuple_usizeTransactionZ txdata_conv_28_conv = *(LDKC2Tuple_usizeTransactionZ*)(((uint64_t)txdata_conv_28) & ~1);
+               void* txdata_conv_28_ptr = (void*)(((uint64_t)txdata_conv_28) & ~1);
+               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*)(((uint64_t)txdata_conv_28) & ~1));
                txdata_constr.data[c] = txdata_conv_28_conv;
        }
        (*env)->ReleaseLongArrayElements(env, txdata, txdata_vals, 0);
-       LDKBroadcasterInterface broadcaster_conv = *(LDKBroadcasterInterface*)(((uint64_t)broadcaster) & ~1);
+       void* broadcaster_ptr = (void*)(((uint64_t)broadcaster) & ~1);
+       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);
        }
-       LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(((uint64_t)fee_estimator) & ~1);
+       void* fee_estimator_ptr = (void*)(((uint64_t)fee_estimator) & ~1);
+       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);
        }
-       LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       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);
@@ -17608,17 +18133,23 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1transaction_1u
        CHECK((*env)->GetArrayLength(env, txid) == 32);
        (*env)->GetByteArrayRegion(env, txid, 0, 32, txid_arr);
        unsigned char (*txid_ref)[32] = &txid_arr;
-       LDKBroadcasterInterface broadcaster_conv = *(LDKBroadcasterInterface*)(((uint64_t)broadcaster) & ~1);
+       void* broadcaster_ptr = (void*)(((uint64_t)broadcaster) & ~1);
+       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);
        }
-       LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(((uint64_t)fee_estimator) & ~1);
+       void* fee_estimator_ptr = (void*)(((uint64_t)fee_estimator) & ~1);
+       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);
        }
-       LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       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);
@@ -17634,17 +18165,23 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1best_1
        CHECK((*env)->GetArrayLength(env, header) == 80);
        (*env)->GetByteArrayRegion(env, header, 0, 80, header_arr);
        unsigned char (*header_ref)[80] = &header_arr;
-       LDKBroadcasterInterface broadcaster_conv = *(LDKBroadcasterInterface*)(((uint64_t)broadcaster) & ~1);
+       void* broadcaster_ptr = (void*)(((uint64_t)broadcaster) & ~1);
+       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);
        }
-       LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(((uint64_t)fee_estimator) & ~1);
+       void* fee_estimator_ptr = (void*)(((uint64_t)fee_estimator) & ~1);
+       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);
        }
-       LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       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);
@@ -17701,7 +18238,7 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1get_1c
        int64_t *ret_arr_ptr = (*env)->GetPrimitiveArrayCritical(env, ret_arr, NULL);
        for (size_t j = 0; j < ret_var.datalen; j++) {
                LDKBalance *ret_conv_9_copy = MALLOC(sizeof(LDKBalance), "LDKBalance");
-               *ret_conv_9_copy = Balance_clone(&ret_var.data[j]);
+               *ret_conv_9_copy = ret_var.data[j];
                uint64_t ret_conv_9_ref = (uint64_t)ret_conv_9_copy;
                ret_arr_ptr[j] = ret_conv_9_ref;
        }
@@ -17714,7 +18251,9 @@ 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);
-       LDKKeysInterface* arg_conv = (LDKKeysInterface*)(((uint64_t)arg) & ~1);
+       void* arg_ptr = (void*)(((uint64_t)arg) & ~1);
+       if (!(arg & 1)) { 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);
@@ -17909,7 +18448,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescriptor
        LDKDelayedPaymentOutputDescriptor this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       LDKTxOut val_conv = *(LDKTxOut*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       CHECK_ACCESS(val_ptr);
+       LDKTxOut val_conv = *(LDKTxOut*)(val_ptr);
        val_conv = TxOut_clone((LDKTxOut*)(((uint64_t)val) & ~1));
        DelayedPaymentOutputDescriptor_set_output(&this_ptr_conv, val_conv);
 }
@@ -17975,7 +18516,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DelayedPaymentOutputDescrip
        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);
-       LDKTxOut output_arg_conv = *(LDKTxOut*)(((uint64_t)output_arg) & ~1);
+       void* output_arg_ptr = (void*)(((uint64_t)output_arg) & ~1);
+       CHECK_ACCESS(output_arg_ptr);
+       LDKTxOut output_arg_conv = *(LDKTxOut*)(output_arg_ptr);
        output_arg_conv = TxOut_clone((LDKTxOut*)(((uint64_t)output_arg) & ~1));
        LDKPublicKey revocation_pubkey_arg_ref;
        CHECK((*env)->GetArrayLength(env, revocation_pubkey_arg) == 33);
@@ -18064,7 +18607,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_StaticPaymentOutputDescriptor_
        LDKStaticPaymentOutputDescriptor this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       LDKTxOut val_conv = *(LDKTxOut*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       CHECK_ACCESS(val_ptr);
+       LDKTxOut val_conv = *(LDKTxOut*)(val_ptr);
        val_conv = TxOut_clone((LDKTxOut*)(((uint64_t)val) & ~1));
        StaticPaymentOutputDescriptor_set_output(&this_ptr_conv, val_conv);
 }
@@ -18108,7 +18653,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_StaticPaymentOutputDescript
        outpoint_arg_conv.inner = (void*)(outpoint_arg & (~1));
        outpoint_arg_conv.is_owned = (outpoint_arg & 1) || (outpoint_arg == 0);
        outpoint_arg_conv = OutPoint_clone(&outpoint_arg_conv);
-       LDKTxOut output_arg_conv = *(LDKTxOut*)(((uint64_t)output_arg) & ~1);
+       void* output_arg_ptr = (void*)(((uint64_t)output_arg) & ~1);
+       CHECK_ACCESS(output_arg_ptr);
+       LDKTxOut output_arg_conv = *(LDKTxOut*)(output_arg_ptr);
        output_arg_conv = TxOut_clone((LDKTxOut*)(((uint64_t)output_arg) & ~1));
        LDKThirtyTwoBytes channel_keys_id_arg_ref;
        CHECK((*env)->GetArrayLength(env, channel_keys_id_arg) == 32);
@@ -18160,7 +18707,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_StaticPaymentOutputDescript
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_SpendableOutputDescriptor_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKSpendableOutputDescriptor this_ptr_conv = *(LDKSpendableOutputDescriptor*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKSpendableOutputDescriptor this_ptr_conv = *(LDKSpendableOutputDescriptor*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        SpendableOutputDescriptor_free(this_ptr_conv);
 }
@@ -18178,7 +18727,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SpendableOutputDescriptor_1
        outpoint_conv.inner = (void*)(outpoint & (~1));
        outpoint_conv.is_owned = (outpoint & 1) || (outpoint == 0);
        outpoint_conv = OutPoint_clone(&outpoint_conv);
-       LDKTxOut output_conv = *(LDKTxOut*)(((uint64_t)output) & ~1);
+       void* output_ptr = (void*)(((uint64_t)output) & ~1);
+       CHECK_ACCESS(output_ptr);
+       LDKTxOut output_conv = *(LDKTxOut*)(output_ptr);
        output_conv = TxOut_clone((LDKTxOut*)(((uint64_t)output) & ~1));
        LDKSpendableOutputDescriptor *ret_copy = MALLOC(sizeof(LDKSpendableOutputDescriptor), "LDKSpendableOutputDescriptor");
        *ret_copy = SpendableOutputDescriptor_static_output(outpoint_conv, output_conv);
@@ -18229,13 +18780,17 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SpendableOutputDescriptor_1
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_BaseSign_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKBaseSign this_ptr_conv = *(LDKBaseSign*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKBaseSign this_ptr_conv = *(LDKBaseSign*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        BaseSign_free(this_ptr_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Sign_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKSign* orig_conv = (LDKSign*)(((uint64_t)orig) & ~1);
+       void* orig_ptr = (void*)(((uint64_t)orig) & ~1);
+       if (!(orig & 1)) { CHECK_ACCESS(orig_ptr); }
+       LDKSign* orig_conv = (LDKSign*)orig_ptr;
        LDKSign* ret_ret =MALLOC(sizeof(LDKSign), "LDKSign");
        *ret_ret = Sign_clone(orig_conv);
        return (uint64_t)ret_ret;
@@ -18243,14 +18798,18 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Sign_1clone(JNIEnv *env, jc
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Sign_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKSign this_ptr_conv = *(LDKSign*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKSign this_ptr_conv = *(LDKSign*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        Sign_free(this_ptr_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_KeysInterface_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKKeysInterface this_ptr_conv = *(LDKKeysInterface*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKKeysInterface this_ptr_conv = *(LDKKeysInterface*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        KeysInterface_free(this_ptr_conv);
 }
@@ -18614,7 +19173,9 @@ 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];
-               LDKSpendableOutputDescriptor descriptors_conv_27_conv = *(LDKSpendableOutputDescriptor*)(((uint64_t)descriptors_conv_27) & ~1);
+               void* descriptors_conv_27_ptr = (void*)(((uint64_t)descriptors_conv_27) & ~1);
+               CHECK_ACCESS(descriptors_conv_27_ptr);
+               LDKSpendableOutputDescriptor descriptors_conv_27_conv = *(LDKSpendableOutputDescriptor*)(descriptors_conv_27_ptr);
                descriptors_conv_27_conv = SpendableOutputDescriptor_clone((LDKSpendableOutputDescriptor*)(((uint64_t)descriptors_conv_27) & ~1));
                descriptors_constr.data[b] = descriptors_conv_27_conv;
        }
@@ -18628,7 +19189,9 @@ 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];
-               LDKTxOut outputs_conv_7_conv = *(LDKTxOut*)(((uint64_t)outputs_conv_7) & ~1);
+               void* outputs_conv_7_ptr = (void*)(((uint64_t)outputs_conv_7) & ~1);
+               CHECK_ACCESS(outputs_conv_7_ptr);
+               LDKTxOut outputs_conv_7_conv = *(LDKTxOut*)(outputs_conv_7_ptr);
                outputs_conv_7_conv = TxOut_clone((LDKTxOut*)(((uint64_t)outputs_conv_7) & ~1));
                outputs_constr.data[h] = outputs_conv_7_conv;
        }
@@ -19091,7 +19654,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1short_1ch
        LDKChannelDetails this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       CHECK_ACCESS(val_ptr);
+       LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
        val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)val) & ~1));
        ChannelDetails_set_short_channel_id(&this_ptr_conv, val_conv);
 }
@@ -19125,7 +19690,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1unspendab
        LDKChannelDetails this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       CHECK_ACCESS(val_ptr);
+       LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
        val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)val) & ~1));
        ChannelDetails_set_unspendable_punishment_reserve(&this_ptr_conv, val_conv);
 }
@@ -19189,7 +19756,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1confirmat
        LDKChannelDetails this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       LDKCOption_u32Z val_conv = *(LDKCOption_u32Z*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       CHECK_ACCESS(val_ptr);
+       LDKCOption_u32Z val_conv = *(LDKCOption_u32Z*)(val_ptr);
        val_conv = COption_u32Z_clone((LDKCOption_u32Z*)(((uint64_t)val) & ~1));
        ChannelDetails_set_confirmations_required(&this_ptr_conv, val_conv);
 }
@@ -19208,7 +19777,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1force_1cl
        LDKChannelDetails this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       LDKCOption_u16Z val_conv = *(LDKCOption_u16Z*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       CHECK_ACCESS(val_ptr);
+       LDKCOption_u16Z val_conv = *(LDKCOption_u16Z*)(val_ptr);
        val_conv = COption_u16Z_clone((LDKCOption_u16Z*)(((uint64_t)val) & ~1));
        ChannelDetails_set_force_close_spend_delay(&this_ptr_conv, val_conv);
 }
@@ -19285,12 +19856,20 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1new(JNIEnv
        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 = OutPoint_clone(&funding_txo_arg_conv);
-       LDKCOption_u64Z short_channel_id_arg_conv = *(LDKCOption_u64Z*)(((uint64_t)short_channel_id_arg) & ~1);
+       void* short_channel_id_arg_ptr = (void*)(((uint64_t)short_channel_id_arg) & ~1);
+       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*)(((uint64_t)short_channel_id_arg) & ~1));
-       LDKCOption_u64Z unspendable_punishment_reserve_arg_conv = *(LDKCOption_u64Z*)(((uint64_t)unspendable_punishment_reserve_arg) & ~1);
-       LDKCOption_u32Z confirmations_required_arg_conv = *(LDKCOption_u32Z*)(((uint64_t)confirmations_required_arg) & ~1);
+       void* unspendable_punishment_reserve_arg_ptr = (void*)(((uint64_t)unspendable_punishment_reserve_arg) & ~1);
+       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*)(((uint64_t)confirmations_required_arg) & ~1);
+       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*)(((uint64_t)confirmations_required_arg) & ~1));
-       LDKCOption_u16Z force_close_spend_delay_arg_conv = *(LDKCOption_u16Z*)(((uint64_t)force_close_spend_delay_arg) & ~1);
+       void* force_close_spend_delay_arg_ptr = (void*)(((uint64_t)force_close_spend_delay_arg) & ~1);
+       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*)(((uint64_t)force_close_spend_delay_arg) & ~1));
        LDKChannelDetails ret_var = ChannelDetails_new(channel_id_arg_ref, counterparty_arg_conv, funding_txo_arg_conv, short_channel_id_arg_conv, channel_value_satoshis_arg, unspendable_punishment_reserve_arg_conv, user_channel_id_arg, outbound_capacity_msat_arg, inbound_capacity_msat_arg, confirmations_required_arg_conv, force_close_spend_delay_arg_conv, is_outbound_arg, is_funding_locked_arg, is_usable_arg, is_public_arg);
        CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
@@ -19318,7 +19897,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1clone(JNIEn
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PaymentSendFailure_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKPaymentSendFailure this_ptr_conv = *(LDKPaymentSendFailure*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKPaymentSendFailure this_ptr_conv = *(LDKPaymentSendFailure*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        PaymentSendFailure_free(this_ptr_conv);
 }
@@ -19332,7 +19913,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentSendFailure_1clone(J
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentSendFailure_1parameter_1error(JNIEnv *env, jclass clz, int64_t a) {
-       LDKAPIError a_conv = *(LDKAPIError*)(((uint64_t)a) & ~1);
+       void* a_ptr = (void*)(((uint64_t)a) & ~1);
+       CHECK_ACCESS(a_ptr);
+       LDKAPIError a_conv = *(LDKAPIError*)(a_ptr);
        a_conv = APIError_clone((LDKAPIError*)(((uint64_t)a) & ~1));
        LDKPaymentSendFailure *ret_copy = MALLOC(sizeof(LDKPaymentSendFailure), "LDKPaymentSendFailure");
        *ret_copy = PaymentSendFailure_parameter_error(a_conv);
@@ -19350,7 +19933,9 @@ 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];
-               LDKCResult_NoneAPIErrorZ a_conv_22_conv = *(LDKCResult_NoneAPIErrorZ*)(((uint64_t)a_conv_22) & ~1);
+               void* a_conv_22_ptr = (void*)(((uint64_t)a_conv_22) & ~1);
+               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*)(((uint64_t)a_conv_22) & ~1));
                a_constr.data[w] = a_conv_22_conv;
        }
@@ -19371,7 +19956,9 @@ 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];
-               LDKAPIError a_conv_10_conv = *(LDKAPIError*)(((uint64_t)a_conv_10) & ~1);
+               void* a_conv_10_ptr = (void*)(((uint64_t)a_conv_10) & ~1);
+               CHECK_ACCESS(a_conv_10_ptr);
+               LDKAPIError a_conv_10_conv = *(LDKAPIError*)(a_conv_10_ptr);
                a_conv_10_conv = APIError_clone((LDKAPIError*)(((uint64_t)a_conv_10) & ~1));
                a_constr.data[k] = a_conv_10_conv;
        }
@@ -19392,7 +19979,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentSendFailure_1partial
        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];
-               LDKCResult_NoneAPIErrorZ a_conv_22_conv = *(LDKCResult_NoneAPIErrorZ*)(((uint64_t)a_conv_22) & ~1);
+               void* a_conv_22_ptr = (void*)(((uint64_t)a_conv_22) & ~1);
+               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*)(((uint64_t)a_conv_22) & ~1));
                a_constr.data[w] = a_conv_22_conv;
        }
@@ -19404,27 +19993,37 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentSendFailure_1partial
 }
 
 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) {
-       LDKFeeEstimator fee_est_conv = *(LDKFeeEstimator*)(((uint64_t)fee_est) & ~1);
+       void* fee_est_ptr = (void*)(((uint64_t)fee_est) & ~1);
+       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);
        }
-       LDKWatch chain_monitor_conv = *(LDKWatch*)(((uint64_t)chain_monitor) & ~1);
+       void* chain_monitor_ptr = (void*)(((uint64_t)chain_monitor) & ~1);
+       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);
        }
-       LDKBroadcasterInterface tx_broadcaster_conv = *(LDKBroadcasterInterface*)(((uint64_t)tx_broadcaster) & ~1);
+       void* tx_broadcaster_ptr = (void*)(((uint64_t)tx_broadcaster) & ~1);
+       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);
        }
-       LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       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);
        }
-       LDKKeysInterface keys_manager_conv = *(LDKKeysInterface*)(((uint64_t)keys_manager) & ~1);
+       void* keys_manager_ptr = (void*)(((uint64_t)keys_manager) & ~1);
+       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);
@@ -19653,7 +20252,9 @@ 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];
-               LDKNetAddress addresses_conv_12_conv = *(LDKNetAddress*)(((uint64_t)addresses_conv_12) & ~1);
+               void* addresses_conv_12_ptr = (void*)(((uint64_t)addresses_conv_12) & ~1);
+               CHECK_ACCESS(addresses_conv_12_ptr);
+               LDKNetAddress addresses_conv_12_conv = *(LDKNetAddress*)(addresses_conv_12_ptr);
                addresses_constr.data[m] = addresses_conv_12_conv;
        }
        (*env)->ReleaseLongArrayElements(env, addresses, addresses_vals, 0);
@@ -19720,7 +20321,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1create_1inb
        LDKChannelManager this_arg_conv;
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
-       LDKCOption_u64Z min_value_msat_conv = *(LDKCOption_u64Z*)(((uint64_t)min_value_msat) & ~1);
+       void* min_value_msat_ptr = (void*)(((uint64_t)min_value_msat) & ~1);
+       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*)(((uint64_t)min_value_msat) & ~1));
        LDKC2Tuple_PaymentHashPaymentSecretZ* ret_conv = MALLOC(sizeof(LDKC2Tuple_PaymentHashPaymentSecretZ), "LDKC2Tuple_PaymentHashPaymentSecretZ");
        *ret_conv = ChannelManager_create_inbound_payment(&this_arg_conv, min_value_msat_conv, invoice_expiry_delta_secs, user_payment_id);
@@ -19734,7 +20337,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1create_1inb
        LDKThirtyTwoBytes payment_hash_ref;
        CHECK((*env)->GetArrayLength(env, payment_hash) == 32);
        (*env)->GetByteArrayRegion(env, payment_hash, 0, 32, payment_hash_ref.data);
-       LDKCOption_u64Z min_value_msat_conv = *(LDKCOption_u64Z*)(((uint64_t)min_value_msat) & ~1);
+       void* min_value_msat_ptr = (void*)(((uint64_t)min_value_msat) & ~1);
+       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*)(((uint64_t)min_value_msat) & ~1));
        LDKCResult_PaymentSecretAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentSecretAPIErrorZ), "LDKCResult_PaymentSecretAPIErrorZ");
        *ret_conv = ChannelManager_create_inbound_payment_for_hash(&this_arg_conv, payment_hash_ref, min_value_msat_conv, invoice_expiry_delta_secs, user_payment_id);
@@ -19845,7 +20450,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1set_1k
        LDKChannelManagerReadArgs this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       LDKKeysInterface val_conv = *(LDKKeysInterface*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       CHECK_ACCESS(val_ptr);
+       LDKKeysInterface val_conv = *(LDKKeysInterface*)(val_ptr);
        if (val_conv.free == LDKKeysInterface_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKKeysInterface_JCalls_cloned(&val_conv);
@@ -19865,7 +20472,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1set_1f
        LDKChannelManagerReadArgs this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       LDKFeeEstimator val_conv = *(LDKFeeEstimator*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       CHECK_ACCESS(val_ptr);
+       LDKFeeEstimator val_conv = *(LDKFeeEstimator*)(val_ptr);
        if (val_conv.free == LDKFeeEstimator_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKFeeEstimator_JCalls_cloned(&val_conv);
@@ -19885,7 +20494,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1set_1c
        LDKChannelManagerReadArgs this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       LDKWatch val_conv = *(LDKWatch*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       CHECK_ACCESS(val_ptr);
+       LDKWatch val_conv = *(LDKWatch*)(val_ptr);
        if (val_conv.free == LDKWatch_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKWatch_JCalls_cloned(&val_conv);
@@ -19905,7 +20516,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1set_1t
        LDKChannelManagerReadArgs this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       LDKBroadcasterInterface val_conv = *(LDKBroadcasterInterface*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       CHECK_ACCESS(val_ptr);
+       LDKBroadcasterInterface val_conv = *(LDKBroadcasterInterface*)(val_ptr);
        if (val_conv.free == LDKBroadcasterInterface_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKBroadcasterInterface_JCalls_cloned(&val_conv);
@@ -19925,7 +20538,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1set_1l
        LDKChannelManagerReadArgs this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       LDKLogger val_conv = *(LDKLogger*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       CHECK_ACCESS(val_ptr);
+       LDKLogger val_conv = *(LDKLogger*)(val_ptr);
        if (val_conv.free == LDKLogger_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKLogger_JCalls_cloned(&val_conv);
@@ -19959,27 +20574,37 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1set_1d
 }
 
 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) {
-       LDKKeysInterface keys_manager_conv = *(LDKKeysInterface*)(((uint64_t)keys_manager) & ~1);
+       void* keys_manager_ptr = (void*)(((uint64_t)keys_manager) & ~1);
+       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);
        }
-       LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(((uint64_t)fee_estimator) & ~1);
+       void* fee_estimator_ptr = (void*)(((uint64_t)fee_estimator) & ~1);
+       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);
        }
-       LDKWatch chain_monitor_conv = *(LDKWatch*)(((uint64_t)chain_monitor) & ~1);
+       void* chain_monitor_ptr = (void*)(((uint64_t)chain_monitor) & ~1);
+       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);
        }
-       LDKBroadcasterInterface tx_broadcaster_conv = *(LDKBroadcasterInterface*)(((uint64_t)tx_broadcaster) & ~1);
+       void* tx_broadcaster_ptr = (void*)(((uint64_t)tx_broadcaster) & ~1);
+       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);
        }
-       LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       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);
@@ -22256,7 +22881,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_AnnouncementSignatures_1clo
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NetAddress_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKNetAddress this_ptr_conv = *(LDKNetAddress*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKNetAddress this_ptr_conv = *(LDKNetAddress*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        NetAddress_free(this_ptr_conv);
 }
@@ -22455,7 +23082,9 @@ 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];
-               LDKNetAddress val_conv_12_conv = *(LDKNetAddress*)(((uint64_t)val_conv_12) & ~1);
+               void* val_conv_12_ptr = (void*)(((uint64_t)val_conv_12) & ~1);
+               CHECK_ACCESS(val_conv_12_ptr);
+               LDKNetAddress val_conv_12_conv = *(LDKNetAddress*)(val_conv_12_ptr);
                val_conv_12_conv = NetAddress_clone((LDKNetAddress*)(((uint64_t)val_conv_12) & ~1));
                val_constr.data[m] = val_conv_12_conv;
        }
@@ -23547,7 +24176,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_GossipTimestampFilter_1clon
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ErrorAction_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKErrorAction this_ptr_conv = *(LDKErrorAction*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKErrorAction this_ptr_conv = *(LDKErrorAction*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        ErrorAction_free(this_ptr_conv);
 }
@@ -23636,14 +24267,18 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_LightningError_1set_1action(JN
        LDKLightningError this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       LDKErrorAction val_conv = *(LDKErrorAction*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       CHECK_ACCESS(val_ptr);
+       LDKErrorAction val_conv = *(LDKErrorAction*)(val_ptr);
        val_conv = ErrorAction_clone((LDKErrorAction*)(((uint64_t)val) & ~1));
        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);
-       LDKErrorAction action_arg_conv = *(LDKErrorAction*)(((uint64_t)action_arg) & ~1);
+       void* action_arg_ptr = (void*)(((uint64_t)action_arg) & ~1);
+       CHECK_ACCESS(action_arg_ptr);
+       LDKErrorAction action_arg_conv = *(LDKErrorAction*)(action_arg_ptr);
        action_arg_conv = ErrorAction_clone((LDKErrorAction*)(((uint64_t)action_arg) & ~1));
        LDKLightningError ret_var = LightningError_new(err_arg_conv, action_arg_conv);
        CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
@@ -24005,14 +24640,18 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CommitmentUpdate_1clone(JNI
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMessageHandler_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKChannelMessageHandler this_ptr_conv = *(LDKChannelMessageHandler*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKChannelMessageHandler this_ptr_conv = *(LDKChannelMessageHandler*)(this_ptr_ptr);
        FREE((void*)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;
-       LDKRoutingMessageHandler this_ptr_conv = *(LDKRoutingMessageHandler*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKRoutingMessageHandler this_ptr_conv = *(LDKRoutingMessageHandler*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        RoutingMessageHandler_free(this_ptr_conv);
 }
@@ -24699,7 +25338,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_GossipTimestampFilter_1read
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CustomMessageHandler_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKCustomMessageHandler this_ptr_conv = *(LDKCustomMessageHandler*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKCustomMessageHandler this_ptr_conv = *(LDKCustomMessageHandler*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        CustomMessageHandler_free(this_ptr_conv);
 }
@@ -24813,7 +25454,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_MessageHandler_1set_1chan_1han
        LDKMessageHandler this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       LDKChannelMessageHandler val_conv = *(LDKChannelMessageHandler*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       CHECK_ACCESS(val_ptr);
+       LDKChannelMessageHandler val_conv = *(LDKChannelMessageHandler*)(val_ptr);
        if (val_conv.free == LDKChannelMessageHandler_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKChannelMessageHandler_JCalls_cloned(&val_conv);
@@ -24833,7 +25476,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_MessageHandler_1set_1route_1ha
        LDKMessageHandler this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       LDKRoutingMessageHandler val_conv = *(LDKRoutingMessageHandler*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       CHECK_ACCESS(val_ptr);
+       LDKRoutingMessageHandler val_conv = *(LDKRoutingMessageHandler*)(val_ptr);
        if (val_conv.free == LDKRoutingMessageHandler_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKRoutingMessageHandler_JCalls_cloned(&val_conv);
@@ -24842,12 +25487,16 @@ 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) {
-       LDKChannelMessageHandler chan_handler_arg_conv = *(LDKChannelMessageHandler*)(((uint64_t)chan_handler_arg) & ~1);
+       void* chan_handler_arg_ptr = (void*)(((uint64_t)chan_handler_arg) & ~1);
+       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);
        }
-       LDKRoutingMessageHandler route_handler_arg_conv = *(LDKRoutingMessageHandler*)(((uint64_t)route_handler_arg) & ~1);
+       void* route_handler_arg_ptr = (void*)(((uint64_t)route_handler_arg) & ~1);
+       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) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKRoutingMessageHandler_JCalls_cloned(&route_handler_arg_conv);
@@ -24863,7 +25512,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageHandler_1new(JNIEnv
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SocketDescriptor_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKSocketDescriptor* orig_conv = (LDKSocketDescriptor*)(((uint64_t)orig) & ~1);
+       void* orig_ptr = (void*)(((uint64_t)orig) & ~1);
+       if (!(orig & 1)) { CHECK_ACCESS(orig_ptr); }
+       LDKSocketDescriptor* orig_conv = (LDKSocketDescriptor*)orig_ptr;
        LDKSocketDescriptor* ret_ret =MALLOC(sizeof(LDKSocketDescriptor), "LDKSocketDescriptor");
        *ret_ret = SocketDescriptor_clone(orig_conv);
        return (uint64_t)ret_ret;
@@ -24871,7 +25522,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_SocketDescriptor_1clone(JNI
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_SocketDescriptor_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKSocketDescriptor this_ptr_conv = *(LDKSocketDescriptor*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKSocketDescriptor this_ptr_conv = *(LDKSocketDescriptor*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        SocketDescriptor_free(this_ptr_conv);
 }
@@ -24942,12 +25595,16 @@ 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;
-       LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       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);
        }
-       LDKCustomMessageHandler custom_message_handler_conv = *(LDKCustomMessageHandler*)(((uint64_t)custom_message_handler) & ~1);
+       void* custom_message_handler_ptr = (void*)(((uint64_t)custom_message_handler) & ~1);
+       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) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKCustomMessageHandler_JCalls_cloned(&custom_message_handler_conv);
@@ -24985,7 +25642,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PeerManager_1new_1outbound_
        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);
-       LDKSocketDescriptor descriptor_conv = *(LDKSocketDescriptor*)(((uint64_t)descriptor) & ~1);
+       void* descriptor_ptr = (void*)(((uint64_t)descriptor) & ~1);
+       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);
@@ -24999,7 +25658,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PeerManager_1new_1inbound_1
        LDKPeerManager this_arg_conv;
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
-       LDKSocketDescriptor descriptor_conv = *(LDKSocketDescriptor*)(((uint64_t)descriptor) & ~1);
+       void* descriptor_ptr = (void*)(((uint64_t)descriptor) & ~1);
+       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);
@@ -25013,7 +25674,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PeerManager_1write_1buffer_
        LDKPeerManager this_arg_conv;
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
-       LDKSocketDescriptor* descriptor_conv = (LDKSocketDescriptor*)(((uint64_t)descriptor) & ~1);
+       void* descriptor_ptr = (void*)(((uint64_t)descriptor) & ~1);
+       if (!(descriptor & 1)) { 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 (uint64_t)ret_conv;
@@ -25023,7 +25686,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PeerManager_1read_1event(JN
        LDKPeerManager this_arg_conv;
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
-       LDKSocketDescriptor* peer_descriptor_conv = (LDKSocketDescriptor*)(((uint64_t)peer_descriptor) & ~1);
+       void* peer_descriptor_ptr = (void*)(((uint64_t)peer_descriptor) & ~1);
+       if (!(peer_descriptor & 1)) { CHECK_ACCESS(peer_descriptor_ptr); }
+       LDKSocketDescriptor* peer_descriptor_conv = (LDKSocketDescriptor*)peer_descriptor_ptr;
        LDKu8slice data_ref;
        data_ref.datalen = (*env)->GetArrayLength(env, data);
        data_ref.data = (*env)->GetByteArrayElements (env, data, NULL);
@@ -25044,7 +25709,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_PeerManager_1socket_1disconnec
        LDKPeerManager this_arg_conv;
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
-       LDKSocketDescriptor* descriptor_conv = (LDKSocketDescriptor*)(((uint64_t)descriptor) & ~1);
+       void* descriptor_ptr = (void*)(((uint64_t)descriptor) & ~1);
+       if (!(descriptor & 1)) { CHECK_ACCESS(descriptor_ptr); }
+       LDKSocketDescriptor* descriptor_conv = (LDKSocketDescriptor*)descriptor_ptr;
        PeerManager_socket_disconnected(&this_arg_conv, descriptor_conv);
 }
 
@@ -25607,7 +26274,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_HTLCOutputInCommitment_1set_1t
        LDKHTLCOutputInCommitment this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       LDKCOption_u32Z val_conv = *(LDKCOption_u32Z*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       CHECK_ACCESS(val_ptr);
+       LDKCOption_u32Z val_conv = *(LDKCOption_u32Z*)(val_ptr);
        val_conv = COption_u32Z_clone((LDKCOption_u32Z*)(((uint64_t)val) & ~1));
        HTLCOutputInCommitment_set_transaction_output_index(&this_ptr_conv, val_conv);
 }
@@ -25616,7 +26285,9 @@ 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);
-       LDKCOption_u32Z transaction_output_index_arg_conv = *(LDKCOption_u32Z*)(((uint64_t)transaction_output_index_arg) & ~1);
+       void* transaction_output_index_arg_ptr = (void*)(((uint64_t)transaction_output_index_arg) & ~1);
+       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*)(((uint64_t)transaction_output_index_arg) & ~1));
        LDKHTLCOutputInCommitment ret_var = HTLCOutputInCommitment_new(offered_arg, amount_msat_arg, cltv_expiry_arg, payment_hash_arg_ref, transaction_output_index_arg_conv);
        CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
@@ -26338,6 +27009,28 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ClosingTransaction_1free(JNIEn
        ClosingTransaction_free(this_obj_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;
+       LDKClosingTransaction ret_var = ClosingTransaction_clone(&orig_conv);
+       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uint64_t ret_ref = (uint64_t)ret_var.inner;
+       if (ret_var.is_owned) {
+               ret_ref |= 1;
+       }
+       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;
+       int64_t ret_val = ClosingTransaction_hash(&o_conv);
+       return ret_val;
+}
+
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ClosingTransaction_1new(JNIEnv *env, jclass clz, int64_t to_holder_value_sat, int64_t to_counterparty_value_sat, int8_tArray to_holder_script, int8_tArray to_counterparty_script, int64_t funding_outpoint) {
        LDKCVec_u8Z to_holder_script_ref;
        to_holder_script_ref.datalen = (*env)->GetArrayLength(env, to_holder_script);
@@ -27069,6 +27762,20 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_InvalidShutdownScript_1new(
        return ret_ref;
 }
 
+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;
+       LDKInvalidShutdownScript ret_var = InvalidShutdownScript_clone(&orig_conv);
+       CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+       CHECK((((uint64_t)&ret_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+       uint64_t ret_ref = (uint64_t)ret_var.inner;
+       if (ret_var.is_owned) {
+               ret_ref |= 1;
+       }
+       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));
@@ -27164,13 +27871,17 @@ JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ShutdownScript_1is_1compat
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CustomMessageReader_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKCustomMessageReader this_ptr_conv = *(LDKCustomMessageReader*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKCustomMessageReader this_ptr_conv = *(LDKCustomMessageReader*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        CustomMessageReader_free(this_ptr_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Type_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKType* orig_conv = (LDKType*)(((uint64_t)orig) & ~1);
+       void* orig_ptr = (void*)(((uint64_t)orig) & ~1);
+       if (!(orig & 1)) { CHECK_ACCESS(orig_ptr); }
+       LDKType* orig_conv = (LDKType*)orig_ptr;
        LDKType* ret_ret =MALLOC(sizeof(LDKType), "LDKType");
        *ret_ret = Type_clone(orig_conv);
        return (uint64_t)ret_ret;
@@ -27178,14 +27889,18 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_Type_1clone(JNIEnv *env, jc
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Type_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKType this_ptr_conv = *(LDKType*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKType this_ptr_conv = *(LDKType*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        Type_free(this_ptr_conv);
 }
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Score_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKScore this_ptr_conv = *(LDKScore*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKScore this_ptr_conv = *(LDKScore*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        Score_free(this_ptr_conv);
 }
@@ -27294,7 +28009,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ReadOnlyNetworkGraph_1free(JNI
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NetworkUpdate_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKNetworkUpdate this_ptr_conv = *(LDKNetworkUpdate*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKNetworkUpdate this_ptr_conv = *(LDKNetworkUpdate*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        NetworkUpdate_free(this_ptr_conv);
 }
@@ -27390,7 +28107,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetGraphMsgHandler_1new(JNI
        network_graph_conv.inner = (void*)(network_graph & (~1));
        network_graph_conv.is_owned = (network_graph & 1) || (network_graph == 0);
        network_graph_conv = NetworkGraph_clone(&network_graph_conv);
-       LDKCOption_AccessZ chain_access_conv = *(LDKCOption_AccessZ*)(((uint64_t)chain_access) & ~1);
+       void* chain_access_ptr = (void*)(((uint64_t)chain_access) & ~1);
+       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
        if (chain_access_conv.tag == LDKCOption_AccessZ_Some) {
                // Manually implement clone for Java trait instances
@@ -27399,7 +28118,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetGraphMsgHandler_1new(JNI
                        LDKAccess_JCalls_cloned(&chain_access_conv.some);
                }
        }
-       LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       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);
@@ -27418,7 +28139,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NetGraphMsgHandler_1add_1chain
        LDKNetGraphMsgHandler this_arg_conv;
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
-       LDKCOption_AccessZ chain_access_conv = *(LDKCOption_AccessZ*)(((uint64_t)chain_access) & ~1);
+       void* chain_access_ptr = (void*)(((uint64_t)chain_access) & ~1);
+       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
        if (chain_access_conv.tag == LDKCOption_AccessZ_Some) {
                // Manually implement clone for Java trait instances
@@ -27529,7 +28252,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_DirectionalChannelInfo_1set_1h
        LDKDirectionalChannelInfo this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       CHECK_ACCESS(val_ptr);
+       LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
        val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)val) & ~1));
        DirectionalChannelInfo_set_htlc_maximum_msat(&this_ptr_conv, val_conv);
 }
@@ -27585,7 +28310,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_DirectionalChannelInfo_1set_1l
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_DirectionalChannelInfo_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) {
-       LDKCOption_u64Z htlc_maximum_msat_arg_conv = *(LDKCOption_u64Z*)(((uint64_t)htlc_maximum_msat_arg) & ~1);
+       void* htlc_maximum_msat_arg_ptr = (void*)(((uint64_t)htlc_maximum_msat_arg) & ~1);
+       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*)(((uint64_t)htlc_maximum_msat_arg) & ~1));
        LDKRoutingFees fees_arg_conv;
        fees_arg_conv.inner = (void*)(fees_arg & (~1));
@@ -27786,7 +28513,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1set_1capacity_1sa
        LDKChannelInfo this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       CHECK_ACCESS(val_ptr);
+       LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
        val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)val) & ~1));
        ChannelInfo_set_capacity_sats(&this_ptr_conv, val_conv);
 }
@@ -27837,7 +28566,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelInfo_1new(JNIEnv *en
        two_to_one_arg_conv.inner = (void*)(two_to_one_arg & (~1));
        two_to_one_arg_conv.is_owned = (two_to_one_arg & 1) || (two_to_one_arg == 0);
        two_to_one_arg_conv = DirectionalChannelInfo_clone(&two_to_one_arg_conv);
-       LDKCOption_u64Z capacity_sats_arg_conv = *(LDKCOption_u64Z*)(((uint64_t)capacity_sats_arg) & ~1);
+       void* capacity_sats_arg_ptr = (void*)(((uint64_t)capacity_sats_arg) & ~1);
+       CHECK_ACCESS(capacity_sats_arg_ptr);
+       LDKCOption_u64Z capacity_sats_arg_conv = *(LDKCOption_u64Z*)(capacity_sats_arg_ptr);
        capacity_sats_arg_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)capacity_sats_arg) & ~1));
        LDKChannelAnnouncement announcement_message_arg_conv;
        announcement_message_arg_conv.inner = (void*)(announcement_message_arg & (~1));
@@ -28088,7 +28819,9 @@ 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];
-               LDKNetAddress val_conv_12_conv = *(LDKNetAddress*)(((uint64_t)val_conv_12) & ~1);
+               void* val_conv_12_ptr = (void*)(((uint64_t)val_conv_12) & ~1);
+               CHECK_ACCESS(val_conv_12_ptr);
+               LDKNetAddress val_conv_12_conv = *(LDKNetAddress*)(val_conv_12_ptr);
                val_conv_12_conv = NetAddress_clone((LDKNetAddress*)(((uint64_t)val_conv_12) & ~1));
                val_constr.data[m] = val_conv_12_conv;
        }
@@ -28141,7 +28874,9 @@ 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];
-               LDKNetAddress addresses_arg_conv_12_conv = *(LDKNetAddress*)(((uint64_t)addresses_arg_conv_12) & ~1);
+               void* addresses_arg_conv_12_ptr = (void*)(((uint64_t)addresses_arg_conv_12) & ~1);
+               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);
@@ -28416,7 +29151,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1update_1chann
        LDKChannelAnnouncement msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = false;
-       LDKCOption_AccessZ chain_access_conv = *(LDKCOption_AccessZ*)(((uint64_t)chain_access) & ~1);
+       void* chain_access_ptr = (void*)(((uint64_t)chain_access) & ~1);
+       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
        if (chain_access_conv.tag == LDKCOption_AccessZ_Some) {
                // Manually implement clone for Java trait instances
@@ -28437,7 +29174,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1update_1chann
        LDKUnsignedChannelAnnouncement msg_conv;
        msg_conv.inner = (void*)(msg & (~1));
        msg_conv.is_owned = false;
-       LDKCOption_AccessZ chain_access_conv = *(LDKCOption_AccessZ*)(((uint64_t)chain_access) & ~1);
+       void* chain_access_ptr = (void*)(((uint64_t)chain_access) & ~1);
+       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
        if (chain_access_conv.tag == LDKCOption_AccessZ_Some) {
                // Manually implement clone for Java trait instances
@@ -29013,7 +29752,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1set_1htlc_1minim
        LDKRouteHintHop this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       CHECK_ACCESS(val_ptr);
+       LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
        val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)val) & ~1));
        RouteHintHop_set_htlc_minimum_msat(&this_ptr_conv, val_conv);
 }
@@ -29032,7 +29773,9 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1set_1htlc_1maxim
        LDKRouteHintHop this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(((uint64_t)val) & ~1);
+       void* val_ptr = (void*)(((uint64_t)val) & ~1);
+       CHECK_ACCESS(val_ptr);
+       LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(val_ptr);
        val_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)val) & ~1));
        RouteHintHop_set_htlc_maximum_msat(&this_ptr_conv, val_conv);
 }
@@ -29045,9 +29788,13 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1new(JNIEnv *e
        fees_arg_conv.inner = (void*)(fees_arg & (~1));
        fees_arg_conv.is_owned = (fees_arg & 1) || (fees_arg == 0);
        fees_arg_conv = RoutingFees_clone(&fees_arg_conv);
-       LDKCOption_u64Z htlc_minimum_msat_arg_conv = *(LDKCOption_u64Z*)(((uint64_t)htlc_minimum_msat_arg) & ~1);
+       void* htlc_minimum_msat_arg_ptr = (void*)(((uint64_t)htlc_minimum_msat_arg) & ~1);
+       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*)(((uint64_t)htlc_minimum_msat_arg) & ~1));
-       LDKCOption_u64Z htlc_maximum_msat_arg_conv = *(LDKCOption_u64Z*)(((uint64_t)htlc_maximum_msat_arg) & ~1);
+       void* htlc_maximum_msat_arg_ptr = (void*)(((uint64_t)htlc_maximum_msat_arg) & ~1);
+       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*)(((uint64_t)htlc_maximum_msat_arg) & ~1));
        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);
        CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
@@ -29137,12 +29884,16 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_get_1keysend_1route(JNIEnv
                last_hops_constr.data[l] = last_hops_conv_11_conv;
        }
        (*env)->ReleaseLongArrayElements(env, last_hops, last_hops_vals, 0);
-       LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       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);
        }
-       LDKScore* scorer_conv = (LDKScore*)(((uint64_t)scorer) & ~1);
+       void* scorer_ptr = (void*)(((uint64_t)scorer) & ~1);
+       if (!(scorer & 1)) { CHECK_ACCESS(scorer_ptr); }
+       LDKScore* scorer_conv = (LDKScore*)scorer_ptr;
        LDKCResult_RouteLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteLightningErrorZ), "LDKCResult_RouteLightningErrorZ");
        *ret_conv = get_keysend_route(our_node_pubkey_ref, &network_conv, payee_ref, first_hops_ptr, last_hops_constr, final_value_msat, final_cltv, logger_conv, scorer_conv);
        if (first_hops_ptr != NULL) { FREE(first_hops_constr.data); }
@@ -29198,12 +29949,16 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_get_1route(JNIEnv *env, jcl
                last_hops_constr.data[l] = last_hops_conv_11_conv;
        }
        (*env)->ReleaseLongArrayElements(env, last_hops, last_hops_vals, 0);
-       LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       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);
        }
-       LDKScore* scorer_conv = (LDKScore*)(((uint64_t)scorer) & ~1);
+       void* scorer_ptr = (void*)(((uint64_t)scorer) & ~1);
+       if (!(scorer & 1)) { CHECK_ACCESS(scorer_ptr); }
+       LDKScore* scorer_conv = (LDKScore*)scorer_ptr;
        LDKCResult_RouteLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteLightningErrorZ), "LDKCResult_RouteLightningErrorZ");
        *ret_conv = get_route(our_node_pubkey_ref, &network_conv, payee_ref, payee_features_conv, first_hops_ptr, last_hops_constr, final_value_msat, final_cltv, logger_conv, scorer_conv);
        if (first_hops_ptr != NULL) { FREE(first_hops_constr.data); }
@@ -29291,7 +30046,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_FilesystemPersister_1read_1
        LDKFilesystemPersister this_arg_conv;
        this_arg_conv.inner = (void*)(this_arg & (~1));
        this_arg_conv.is_owned = false;
-       LDKKeysInterface keys_manager_conv = *(LDKKeysInterface*)(((uint64_t)keys_manager) & ~1);
+       void* keys_manager_ptr = (void*)(((uint64_t)keys_manager) & ~1);
+       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);
@@ -29319,18 +30076,24 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_BackgroundProcessor_1free(JNIE
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManagerPersister_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKChannelManagerPersister this_ptr_conv = *(LDKChannelManagerPersister*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKChannelManagerPersister this_ptr_conv = *(LDKChannelManagerPersister*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        ChannelManagerPersister_free(this_ptr_conv);
 }
 
 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 net_graph_msg_handler, int64_t peer_manager, int64_t logger) {
-       LDKChannelManagerPersister persister_conv = *(LDKChannelManagerPersister*)(((uint64_t)persister) & ~1);
+       void* persister_ptr = (void*)(((uint64_t)persister) & ~1);
+       CHECK_ACCESS(persister_ptr);
+       LDKChannelManagerPersister persister_conv = *(LDKChannelManagerPersister*)(persister_ptr);
        if (persister_conv.free == LDKChannelManagerPersister_JCalls_free) {
                // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
                LDKChannelManagerPersister_JCalls_cloned(&persister_conv);
        }
-       LDKEventHandler event_handler_conv = *(LDKEventHandler*)(((uint64_t)event_handler) & ~1);
+       void* event_handler_ptr = (void*)(((uint64_t)event_handler) & ~1);
+       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);
@@ -29347,7 +30110,9 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BackgroundProcessor_1start(
        LDKPeerManager peer_manager_conv;
        peer_manager_conv.inner = (void*)(peer_manager & (~1));
        peer_manager_conv.is_owned = false;
-       LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
+       void* logger_ptr = (void*)(((uint64_t)logger) & ~1);
+       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);
@@ -29881,7 +30646,9 @@ JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_MinFinalCltvExpiry_1eq(JNI
 
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_Fallback_1free(JNIEnv *env, jclass clz, int64_t this_ptr) {
        if ((this_ptr & 1) != 0) return;
-       LDKFallback this_ptr_conv = *(LDKFallback*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKFallback this_ptr_conv = *(LDKFallback*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        Fallback_free(this_ptr_conv);
 }
@@ -30614,7 +31381,9 @@ 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;
-       LDKSignOrCreationError this_ptr_conv = *(LDKSignOrCreationError*)(((uint64_t)this_ptr) & ~1);
+       void* this_ptr_ptr = (void*)(((uint64_t)this_ptr) & ~1);
+       CHECK_ACCESS(this_ptr_ptr);
+       LDKSignOrCreationError this_ptr_conv = *(LDKSignOrCreationError*)(this_ptr_ptr);
        FREE((void*)this_ptr);
        SignOrCreationError_free(this_ptr_conv);
 }
@@ -30661,13 +31430,17 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_create_1invoice_1from_1chan
        LDKChannelManager channelmanager_conv;
        channelmanager_conv.inner = (void*)(channelmanager & (~1));
        channelmanager_conv.is_owned = false;
-       LDKKeysInterface keys_manager_conv = *(LDKKeysInterface*)(((uint64_t)keys_manager) & ~1);
+       void* keys_manager_ptr = (void*)(((uint64_t)keys_manager) & ~1);
+       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);
        }
        LDKCurrency network_conv = LDKCurrency_from_java(env, network);
-       LDKCOption_u64Z amt_msat_conv = *(LDKCOption_u64Z*)(((uint64_t)amt_msat) & ~1);
+       void* amt_msat_ptr = (void*)(((uint64_t)amt_msat) & ~1);
+       CHECK_ACCESS(amt_msat_ptr);
+       LDKCOption_u64Z amt_msat_conv = *(LDKCOption_u64Z*)(amt_msat_ptr);
        amt_msat_conv = COption_u64Z_clone((LDKCOption_u64Z*)(((uint64_t)amt_msat) & ~1));
        LDKStr description_conv = java_to_owned_str(env, description);
        LDKCResult_InvoiceSignOrCreationErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_InvoiceSignOrCreationErrorZ), "LDKCResult_InvoiceSignOrCreationErrorZ");