Update auto-generated bindings
[ldk-java] / src / main / jni / bindings.c
index 3dc78c9ded6baefeb8198b8961c684c7b3037c7e..7435d559a1f2000ef4bb6dd3585d9f02d49f2970 100644 (file)
@@ -1,5 +1,8 @@
 #define LDKCVec_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZZ LDKCVec_TransactionOutputsZ
 #define CVec_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZZ_free CVec_TransactionOutputsZ_free
+#include <jni.h>
+// On OSX jlong (ie long long) is not equivalent to int64_t, so we override here
+#define int64_t jlong
 #include "org_ldk_impl_bindings.h"
 #include <lightning.h>
 #include <string.h>
 #include <stdlib.h>
 
 #define DEBUG_PRINT(...) fprintf(stderr, __VA_ARGS__)
-#define MALLOC(a, _) malloc(a)
-#define FREE(p) if ((uint64_t)(p) > 1024) { free(p); }
-#define DO_ASSERT(a) (void)(a)
-#define CHECK(a)
+#include <assert.h>
+// Always run a, then assert it is true:
+#define DO_ASSERT(a) do { bool _assert_val = (a); assert(_assert_val); } while(0)
+// Assert a is true or do nothing
+#define CHECK(a) DO_ASSERT(a)
+
+void __attribute__((constructor)) debug_log_version() {
+       if (check_get_ldk_version() == NULL)
+               DEBUG_PRINT("LDK version did not match the header we built against\n");
+       if (check_get_ldk_bindings_version() == NULL)
+               DEBUG_PRINT("LDK C Bindings version did not match the header we built against\n");
+       DEBUG_PRINT("Loaded LDK-Java Bindings with LDK %s and LDK-C-Bindings %s\n", check_get_ldk_version(), check_get_ldk_bindings_version());
+}
+
+// Running a leak check across all the allocations and frees of the JDK is a mess,
+// so instead we implement our own naive leak checker here, relying on the -wrap
+// linker option to wrap malloc/calloc/realloc/free, tracking everyhing allocated
+// and free'd in Rust or C across the generated bindings shared library.
+#include <threads.h>
+#include <execinfo.h>
+
+#include <unistd.h>
+static mtx_t allocation_mtx;
+
+void __attribute__((constructor)) init_mtx() {
+       DO_ASSERT(mtx_init(&allocation_mtx, mtx_plain) == thrd_success);
+}
+
+#define BT_MAX 128
+typedef struct allocation {
+       struct allocation* next;
+       void* ptr;
+       const char* struct_name;
+       void* bt[BT_MAX];
+       int bt_len;
+       unsigned long alloc_len;
+} allocation;
+static allocation* allocation_ll = NULL;
+
+void* __real_malloc(size_t len);
+void* __real_calloc(size_t nmemb, size_t len);
+static void new_allocation(void* res, const char* struct_name, size_t len) {
+       allocation* new_alloc = __real_malloc(sizeof(allocation));
+       new_alloc->ptr = res;
+       new_alloc->struct_name = struct_name;
+       new_alloc->bt_len = backtrace(new_alloc->bt, BT_MAX);
+       new_alloc->alloc_len = len;
+       DO_ASSERT(mtx_lock(&allocation_mtx) == thrd_success);
+       new_alloc->next = allocation_ll;
+       allocation_ll = new_alloc;
+       DO_ASSERT(mtx_unlock(&allocation_mtx) == thrd_success);
+}
+static void* MALLOC(size_t len, const char* struct_name) {
+       void* res = __real_malloc(len);
+       new_allocation(res, struct_name, len);
+       return res;
+}
+void __real_free(void* ptr);
+static void alloc_freed(void* ptr) {
+       allocation* p = NULL;
+       DO_ASSERT(mtx_lock(&allocation_mtx) == thrd_success);
+       allocation* it = allocation_ll;
+       while (it->ptr != ptr) {
+               p = it; it = it->next;
+               if (it == NULL) {
+                       DEBUG_PRINT("Tried to free unknown pointer %p at:\n", ptr);
+                       void* bt[BT_MAX];
+                       int bt_len = backtrace(bt, BT_MAX);
+                       backtrace_symbols_fd(bt, bt_len, STDERR_FILENO);
+                       DEBUG_PRINT("\n\n");
+                       DO_ASSERT(mtx_unlock(&allocation_mtx) == thrd_success);
+                       return; // addrsan should catch malloc-unknown and print more info than we have
+               }
+       }
+       if (p) { p->next = it->next; } else { allocation_ll = it->next; }
+       DO_ASSERT(mtx_unlock(&allocation_mtx) == thrd_success);
+       DO_ASSERT(it->ptr == ptr);
+       __real_free(it);
+}
+static void FREE(void* ptr) {
+       if ((uint64_t)ptr < 1024) return; // Rust loves to create pointers to the NULL page for dummys
+       alloc_freed(ptr);
+       __real_free(ptr);
+}
+
+void* __wrap_malloc(size_t len) {
+       void* res = __real_malloc(len);
+       new_allocation(res, "malloc call", len);
+       return res;
+}
+void* __wrap_calloc(size_t nmemb, size_t len) {
+       void* res = __real_calloc(nmemb, len);
+       new_allocation(res, "calloc call", len);
+       return res;
+}
+void __wrap_free(void* ptr) {
+       if (ptr == NULL) return;
+       alloc_freed(ptr);
+       __real_free(ptr);
+}
+
+void* __real_realloc(void* ptr, size_t newlen);
+void* __wrap_realloc(void* ptr, size_t len) {
+       if (ptr != NULL) alloc_freed(ptr);
+       void* res = __real_realloc(ptr, len);
+       new_allocation(res, "realloc call", len);
+       return res;
+}
+void __wrap_reallocarray(void* ptr, size_t new_sz) {
+       // Rust doesn't seem to use reallocarray currently
+       DO_ASSERT(false);
+}
+
+void __attribute__((destructor)) check_leaks() {
+       unsigned long alloc_count = 0;
+       unsigned long alloc_size = 0;
+       DEBUG_PRINT("The following LDK-allocated blocks still remain.\n");
+       DEBUG_PRINT("Note that this is only accurate if System.gc(); System.runFinalization()\n");
+       DEBUG_PRINT("was called prior to exit after all LDK objects were out of scope.\n");
+       for (allocation* a = allocation_ll; a != NULL; a = a->next) {
+               DEBUG_PRINT("%s %p (%lu bytes) remains:\n", a->struct_name, a->ptr, a->alloc_len);
+               backtrace_symbols_fd(a->bt, a->bt_len, STDERR_FILENO);
+               DEBUG_PRINT("\n\n");
+               alloc_count++;
+               alloc_size += a->alloc_len;
+       }
+       DEBUG_PRINT("%lu allocations remained for %lu bytes.\n", alloc_count, alloc_size);
+       DEBUG_PRINT("Note that this is only accurate if System.gc(); System.runFinalization()\n");
+       DEBUG_PRINT("was called prior to exit after all LDK objects were out of scope.\n");
+}
 
 static jmethodID ordinal_meth = NULL;
 static jmethodID slicedef_meth = NULL;
@@ -130,7 +259,7 @@ static inline LDKStr java_to_owned_str(JNIEnv *env, jstring str) {
 }
 
 JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_get_1lib_1version_1string(JNIEnv *env, jclass _c) {
-       return str_ref_to_java(env, "v0.0.98", strlen("v0.0.98"));
+       return str_ref_to_java(env, "v0.0.99.1-7-gf7a4eb8-dirty", strlen("v0.0.99.1-7-gf7a4eb8-dirty"));
 }
 JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_get_1ldk_1c_1bindings_1version(JNIEnv *env, jclass _c) {
        return str_ref_to_java(env, check_get_ldk_bindings_version(), strlen(check_get_ldk_bindings_version()));
@@ -451,52 +580,46 @@ static inline jclass LDKIOError_to_java(JNIEnv *env, LDKIOError val) {
 
 static inline LDKLevel LDKLevel_from_java(JNIEnv *env, jclass clz) {
        switch ((*env)->CallIntMethod(env, clz, ordinal_meth)) {
-               case 0: return LDKLevel_Off;
-               case 1: return LDKLevel_Error;
-               case 2: return LDKLevel_Warn;
-               case 3: return LDKLevel_Info;
-               case 4: return LDKLevel_Debug;
-               case 5: return LDKLevel_Trace;
+               case 0: return LDKLevel_Trace;
+               case 1: return LDKLevel_Debug;
+               case 2: return LDKLevel_Info;
+               case 3: return LDKLevel_Warn;
+               case 4: return LDKLevel_Error;
        }
        abort();
 }
 static jclass Level_class = NULL;
-static jfieldID Level_LDKLevel_Off = NULL;
-static jfieldID Level_LDKLevel_Error = NULL;
-static jfieldID Level_LDKLevel_Warn = NULL;
-static jfieldID Level_LDKLevel_Info = NULL;
-static jfieldID Level_LDKLevel_Debug = NULL;
 static jfieldID Level_LDKLevel_Trace = NULL;
+static jfieldID Level_LDKLevel_Debug = NULL;
+static jfieldID Level_LDKLevel_Info = NULL;
+static jfieldID Level_LDKLevel_Warn = NULL;
+static jfieldID Level_LDKLevel_Error = NULL;
 JNIEXPORT void JNICALL Java_org_ldk_enums_Level_init (JNIEnv *env, jclass clz) {
        Level_class = (*env)->NewGlobalRef(env, clz);
        CHECK(Level_class != NULL);
-       Level_LDKLevel_Off = (*env)->GetStaticFieldID(env, Level_class, "LDKLevel_Off", "Lorg/ldk/enums/Level;");
-       CHECK(Level_LDKLevel_Off != NULL);
-       Level_LDKLevel_Error = (*env)->GetStaticFieldID(env, Level_class, "LDKLevel_Error", "Lorg/ldk/enums/Level;");
-       CHECK(Level_LDKLevel_Error != NULL);
-       Level_LDKLevel_Warn = (*env)->GetStaticFieldID(env, Level_class, "LDKLevel_Warn", "Lorg/ldk/enums/Level;");
-       CHECK(Level_LDKLevel_Warn != NULL);
-       Level_LDKLevel_Info = (*env)->GetStaticFieldID(env, Level_class, "LDKLevel_Info", "Lorg/ldk/enums/Level;");
-       CHECK(Level_LDKLevel_Info != NULL);
-       Level_LDKLevel_Debug = (*env)->GetStaticFieldID(env, Level_class, "LDKLevel_Debug", "Lorg/ldk/enums/Level;");
-       CHECK(Level_LDKLevel_Debug != NULL);
        Level_LDKLevel_Trace = (*env)->GetStaticFieldID(env, Level_class, "LDKLevel_Trace", "Lorg/ldk/enums/Level;");
        CHECK(Level_LDKLevel_Trace != NULL);
+       Level_LDKLevel_Debug = (*env)->GetStaticFieldID(env, Level_class, "LDKLevel_Debug", "Lorg/ldk/enums/Level;");
+       CHECK(Level_LDKLevel_Debug != NULL);
+       Level_LDKLevel_Info = (*env)->GetStaticFieldID(env, Level_class, "LDKLevel_Info", "Lorg/ldk/enums/Level;");
+       CHECK(Level_LDKLevel_Info != NULL);
+       Level_LDKLevel_Warn = (*env)->GetStaticFieldID(env, Level_class, "LDKLevel_Warn", "Lorg/ldk/enums/Level;");
+       CHECK(Level_LDKLevel_Warn != NULL);
+       Level_LDKLevel_Error = (*env)->GetStaticFieldID(env, Level_class, "LDKLevel_Error", "Lorg/ldk/enums/Level;");
+       CHECK(Level_LDKLevel_Error != NULL);
 }
 static inline jclass LDKLevel_to_java(JNIEnv *env, LDKLevel val) {
        switch (val) {
-               case LDKLevel_Off:
-                       return (*env)->GetStaticObjectField(env, Level_class, Level_LDKLevel_Off);
-               case LDKLevel_Error:
-                       return (*env)->GetStaticObjectField(env, Level_class, Level_LDKLevel_Error);
-               case LDKLevel_Warn:
-                       return (*env)->GetStaticObjectField(env, Level_class, Level_LDKLevel_Warn);
-               case LDKLevel_Info:
-                       return (*env)->GetStaticObjectField(env, Level_class, Level_LDKLevel_Info);
-               case LDKLevel_Debug:
-                       return (*env)->GetStaticObjectField(env, Level_class, Level_LDKLevel_Debug);
                case LDKLevel_Trace:
                        return (*env)->GetStaticObjectField(env, Level_class, Level_LDKLevel_Trace);
+               case LDKLevel_Debug:
+                       return (*env)->GetStaticObjectField(env, Level_class, Level_LDKLevel_Debug);
+               case LDKLevel_Info:
+                       return (*env)->GetStaticObjectField(env, Level_class, Level_LDKLevel_Info);
+               case LDKLevel_Warn:
+                       return (*env)->GetStaticObjectField(env, Level_class, Level_LDKLevel_Warn);
+               case LDKLevel_Error:
+                       return (*env)->GetStaticObjectField(env, Level_class, Level_LDKLevel_Error);
                default: abort();
        }
 }
@@ -1465,6 +1588,8 @@ static jclass LDKErrorAction_DisconnectPeer_class = NULL;
 static jmethodID LDKErrorAction_DisconnectPeer_meth = NULL;
 static jclass LDKErrorAction_IgnoreError_class = NULL;
 static jmethodID LDKErrorAction_IgnoreError_meth = NULL;
+static jclass LDKErrorAction_IgnoreAndLog_class = NULL;
+static jmethodID LDKErrorAction_IgnoreAndLog_meth = NULL;
 static jclass LDKErrorAction_SendErrorMessage_class = NULL;
 static jmethodID LDKErrorAction_SendErrorMessage_meth = NULL;
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKErrorAction_init (JNIEnv *env, jclass clz) {
@@ -1478,6 +1603,11 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKErrorAction_init (JNIE
        CHECK(LDKErrorAction_IgnoreError_class != NULL);
        LDKErrorAction_IgnoreError_meth = (*env)->GetMethodID(env, LDKErrorAction_IgnoreError_class, "<init>", "()V");
        CHECK(LDKErrorAction_IgnoreError_meth != NULL);
+       LDKErrorAction_IgnoreAndLog_class =
+               (*env)->NewGlobalRef(env, (*env)->FindClass(env, "Lorg/ldk/impl/bindings$LDKErrorAction$IgnoreAndLog;"));
+       CHECK(LDKErrorAction_IgnoreAndLog_class != NULL);
+       LDKErrorAction_IgnoreAndLog_meth = (*env)->GetMethodID(env, LDKErrorAction_IgnoreAndLog_class, "<init>", "(Lorg/ldk/enums/Level;)V");
+       CHECK(LDKErrorAction_IgnoreAndLog_meth != NULL);
        LDKErrorAction_SendErrorMessage_class =
                (*env)->NewGlobalRef(env, (*env)->FindClass(env, "Lorg/ldk/impl/bindings$LDKErrorAction$SendErrorMessage;"));
        CHECK(LDKErrorAction_SendErrorMessage_class != NULL);
@@ -1497,6 +1627,10 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKErrorAction_1ref_1from_1
                case LDKErrorAction_IgnoreError: {
                        return (*env)->NewObject(env, LDKErrorAction_IgnoreError_class, LDKErrorAction_IgnoreError_meth);
                }
+               case LDKErrorAction_IgnoreAndLog: {
+                       jclass ignore_and_log_conv = LDKLevel_to_java(env, obj->ignore_and_log);
+                       return (*env)->NewObject(env, LDKErrorAction_IgnoreAndLog_class, LDKErrorAction_IgnoreAndLog_meth, ignore_and_log_conv);
+               }
                case LDKErrorAction_SendErrorMessage: {
                        LDKErrorMessage msg_var = obj->send_error_message.msg;
                        CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
@@ -1579,6 +1713,8 @@ static jclass LDKMessageSendEvent_BroadcastNodeAnnouncement_class = NULL;
 static jmethodID LDKMessageSendEvent_BroadcastNodeAnnouncement_meth = NULL;
 static jclass LDKMessageSendEvent_BroadcastChannelUpdate_class = NULL;
 static jmethodID LDKMessageSendEvent_BroadcastChannelUpdate_meth = NULL;
+static jclass LDKMessageSendEvent_SendChannelUpdate_class = NULL;
+static jmethodID LDKMessageSendEvent_SendChannelUpdate_meth = NULL;
 static jclass LDKMessageSendEvent_HandleError_class = NULL;
 static jmethodID LDKMessageSendEvent_HandleError_meth = NULL;
 static jclass LDKMessageSendEvent_PaymentFailureNetworkUpdate_class = NULL;
@@ -1660,6 +1796,11 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKMessageSendEvent_init
        CHECK(LDKMessageSendEvent_BroadcastChannelUpdate_class != NULL);
        LDKMessageSendEvent_BroadcastChannelUpdate_meth = (*env)->GetMethodID(env, LDKMessageSendEvent_BroadcastChannelUpdate_class, "<init>", "(J)V");
        CHECK(LDKMessageSendEvent_BroadcastChannelUpdate_meth != NULL);
+       LDKMessageSendEvent_SendChannelUpdate_class =
+               (*env)->NewGlobalRef(env, (*env)->FindClass(env, "Lorg/ldk/impl/bindings$LDKMessageSendEvent$SendChannelUpdate;"));
+       CHECK(LDKMessageSendEvent_SendChannelUpdate_class != NULL);
+       LDKMessageSendEvent_SendChannelUpdate_meth = (*env)->GetMethodID(env, LDKMessageSendEvent_SendChannelUpdate_class, "<init>", "([BJ)V");
+       CHECK(LDKMessageSendEvent_SendChannelUpdate_meth != NULL);
        LDKMessageSendEvent_HandleError_class =
                (*env)->NewGlobalRef(env, (*env)->FindClass(env, "Lorg/ldk/impl/bindings$LDKMessageSendEvent$HandleError;"));
        CHECK(LDKMessageSendEvent_HandleError_class != NULL);
@@ -1813,6 +1954,15 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKMessageSendEvent_1ref_1f
                        uint64_t msg_ref = (uint64_t)msg_var.inner & ~1;
                        return (*env)->NewObject(env, LDKMessageSendEvent_BroadcastChannelUpdate_class, LDKMessageSendEvent_BroadcastChannelUpdate_meth, msg_ref);
                }
+               case LDKMessageSendEvent_SendChannelUpdate: {
+                       int8_tArray node_id_arr = (*env)->NewByteArray(env, 33);
+                       (*env)->SetByteArrayRegion(env, node_id_arr, 0, 33, obj->send_channel_update.node_id.compressed_form);
+                       LDKChannelUpdate msg_var = obj->send_channel_update.msg;
+                       CHECK((((uint64_t)msg_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
+                       CHECK((((uint64_t)&msg_var) & 1) == 0); // We rely on a free low bit, pointer alignment guarantees this.
+                       uint64_t msg_ref = (uint64_t)msg_var.inner & ~1;
+                       return (*env)->NewObject(env, LDKMessageSendEvent_SendChannelUpdate_class, LDKMessageSendEvent_SendChannelUpdate_meth, node_id_arr, msg_ref);
+               }
                case LDKMessageSendEvent_HandleError: {
                        int8_tArray node_id_arr = (*env)->NewByteArray(env, 33);
                        (*env)->SetByteArrayRegion(env, node_id_arr, 0, 33, obj->handle_error.node_id.compressed_form);
@@ -2136,6 +2286,10 @@ LDKPublicKey get_per_commitment_point_LDKBaseSign_jcall(const void* this_arg, ui
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        int8_tArray ret = (*env)->CallObjectMethod(env, obj, j_calls->get_per_commitment_point_meth, idx);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to get_per_commitment_point in LDKBaseSign from rust threw an exception.");
+       }
        LDKPublicKey ret_ref;
        CHECK((*env)->GetArrayLength(env, ret) == 33);
        (*env)->GetByteArrayRegion(env, ret, 0, 33, ret_ref.compressed_form);
@@ -2156,6 +2310,10 @@ LDKThirtyTwoBytes release_commitment_secret_LDKBaseSign_jcall(const void* this_a
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        int8_tArray ret = (*env)->CallObjectMethod(env, obj, j_calls->release_commitment_secret_meth, idx);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to release_commitment_secret in LDKBaseSign from rust threw an exception.");
+       }
        LDKThirtyTwoBytes ret_ref;
        CHECK((*env)->GetArrayLength(env, ret) == 32);
        (*env)->GetByteArrayRegion(env, ret, 0, 32, ret_ref.data);
@@ -2176,6 +2334,10 @@ LDKThirtyTwoBytes channel_keys_id_LDKBaseSign_jcall(const void* this_arg) {
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        int8_tArray ret = (*env)->CallObjectMethod(env, obj, j_calls->channel_keys_id_meth);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to channel_keys_id in LDKBaseSign from rust threw an exception.");
+       }
        LDKThirtyTwoBytes ret_ref;
        CHECK((*env)->GetArrayLength(env, ret) == 32);
        (*env)->GetByteArrayRegion(env, ret, 0, 32, ret_ref.data);
@@ -2204,6 +2366,10 @@ LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ sign_counterparty_commitment_L
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* ret = (LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(*env)->CallLongMethod(env, obj, j_calls->sign_counterparty_commitment_meth, commitment_tx_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*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);
        ret_conv = CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_clone((LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
@@ -2231,6 +2397,10 @@ LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ sign_holder_commitment_and_htl
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ* ret = (LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(*env)->CallLongMethod(env, obj, j_calls->sign_holder_commitment_and_htlcs_meth, commitment_tx_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*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);
        ret_conv = CResult_C2Tuple_SignatureCVec_SignatureZZNoneZ_clone((LDKCResult_C2Tuple_SignatureCVec_SignatureZZNoneZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
@@ -2256,6 +2426,10 @@ LDKCResult_SignatureNoneZ sign_justice_revoked_output_LDKBaseSign_jcall(const vo
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        LDKCResult_SignatureNoneZ* ret = (LDKCResult_SignatureNoneZ*)(*env)->CallLongMethod(env, obj, j_calls->sign_justice_revoked_output_meth, justice_tx_arr, input, amount, per_commitment_key_arr);
+       if ((*env)->ExceptionCheck(env)) {
+               (*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);
        ret_conv = CResult_SignatureNoneZ_clone((LDKCResult_SignatureNoneZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
@@ -2289,6 +2463,10 @@ LDKCResult_SignatureNoneZ sign_justice_revoked_htlc_LDKBaseSign_jcall(const void
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        LDKCResult_SignatureNoneZ* ret = (LDKCResult_SignatureNoneZ*)(*env)->CallLongMethod(env, obj, j_calls->sign_justice_revoked_htlc_meth, justice_tx_arr, input, amount, per_commitment_key_arr, htlc_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*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);
        ret_conv = CResult_SignatureNoneZ_clone((LDKCResult_SignatureNoneZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
@@ -2322,6 +2500,10 @@ LDKCResult_SignatureNoneZ sign_counterparty_htlc_transaction_LDKBaseSign_jcall(c
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        LDKCResult_SignatureNoneZ* ret = (LDKCResult_SignatureNoneZ*)(*env)->CallLongMethod(env, obj, j_calls->sign_counterparty_htlc_transaction_meth, htlc_tx_arr, input, amount, per_commitment_point_arr, htlc_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*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);
        ret_conv = CResult_SignatureNoneZ_clone((LDKCResult_SignatureNoneZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
@@ -2345,6 +2527,10 @@ LDKCResult_SignatureNoneZ sign_closing_transaction_LDKBaseSign_jcall(const void*
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        LDKCResult_SignatureNoneZ* ret = (LDKCResult_SignatureNoneZ*)(*env)->CallLongMethod(env, obj, j_calls->sign_closing_transaction_meth, closing_tx_arr);
+       if ((*env)->ExceptionCheck(env)) {
+               (*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);
        ret_conv = CResult_SignatureNoneZ_clone((LDKCResult_SignatureNoneZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
@@ -2372,6 +2558,10 @@ LDKCResult_SignatureNoneZ sign_channel_announcement_LDKBaseSign_jcall(const void
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        LDKCResult_SignatureNoneZ* ret = (LDKCResult_SignatureNoneZ*)(*env)->CallLongMethod(env, obj, j_calls->sign_channel_announcement_meth, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*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);
        ret_conv = CResult_SignatureNoneZ_clone((LDKCResult_SignatureNoneZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
@@ -2399,15 +2589,14 @@ void ready_channel_LDKBaseSign_jcall(void* this_arg, const LDKChannelTransaction
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->ready_channel_meth, channel_parameters_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to ready_channel in LDKBaseSign from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
 }
-static void* LDKBaseSign_JCalls_clone(const void* this_arg) {
-       LDKBaseSign_JCalls *j_calls = (LDKBaseSign_JCalls*) this_arg;
-       atomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);
-       return (void*) this_arg;
-}
 static inline LDKBaseSign LDKBaseSign_init (JNIEnv *env, jclass clz, jobject o, int64_t pubkeys) {
        jclass c = (*env)->GetObjectClass(env, o);
        CHECK(c != NULL);
@@ -2644,6 +2833,10 @@ LDKCVec_u8Z write_LDKSign_jcall(const void* this_arg) {
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        int8_tArray ret = (*env)->CallObjectMethod(env, obj, j_calls->write_meth);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to write in LDKSign from rust threw an exception.");
+       }
        LDKCVec_u8Z ret_ref;
        ret_ref.datalen = (*env)->GetArrayLength(env, ret);
        ret_ref.data = MALLOC(ret_ref.datalen, "LDKCVec_u8Z Bytes");
@@ -2653,11 +2846,10 @@ LDKCVec_u8Z write_LDKSign_jcall(const void* this_arg) {
        }
        return ret_ref;
 }
-static void* LDKSign_JCalls_clone(const void* this_arg) {
-       LDKSign_JCalls *j_calls = (LDKSign_JCalls*) this_arg;
+static void LDKSign_JCalls_cloned(LDKSign* new_obj) {
+       LDKSign_JCalls *j_calls = (LDKSign_JCalls*) new_obj->this_arg;
        atomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);
        atomic_fetch_add_explicit(&j_calls->BaseSign->refcnt, 1, memory_order_release);
-       return (void*) this_arg;
 }
 static inline LDKSign LDKSign_init (JNIEnv *env, jclass clz, jobject o, jobject BaseSign, int64_t pubkeys) {
        jclass c = (*env)->GetObjectClass(env, o);
@@ -2677,7 +2869,7 @@ static inline LDKSign LDKSign_init (JNIEnv *env, jclass clz, jobject o, jobject
        LDKSign ret = {
                .this_arg = (void*) calls,
                .write = write_LDKSign_jcall,
-               .clone = LDKSign_JCalls_clone,
+               .cloned = LDKSign_JCalls_cloned,
                .free = LDKSign_JCalls_free,
                .BaseSign = LDKBaseSign_init(env, clz, BaseSign, pubkeys),
        };
@@ -2689,6 +2881,12 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKSign_1new(JNIEnv *env, j
        *res_ptr = LDKSign_init(env, clz, o, BaseSign, pubkeys);
        return (uint64_t)res_ptr;
 }
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKSign_1get_1BaseSign(JNIEnv *env, jclass clz, int64_t arg) {
+       LDKSign *inp = (LDKSign *)(arg & ~1);
+       uint64_t res_ptr = (uint64_t)&inp->BaseSign;
+       DO_ASSERT((res_ptr & 1) == 0);
+       return (int64_t)(res_ptr | 1);
+}
 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);
        LDKCVec_u8Z ret_var = (this_arg_conv->write)(this_arg_conv->this_arg);
@@ -2890,6 +3088,34 @@ JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_LDKCResult_1CVec_1C2Tuple_1B
        jclass err_conv = LDKIOError_to_java(env, (*val->contents.err));
        return err_conv;
 }
+static jclass LDKCOption_u16Z_Some_class = NULL;
+static jmethodID LDKCOption_u16Z_Some_meth = NULL;
+static jclass LDKCOption_u16Z_None_class = NULL;
+static jmethodID LDKCOption_u16Z_None_meth = NULL;
+JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKCOption_1u16Z_init (JNIEnv *env, jclass clz) {
+       LDKCOption_u16Z_Some_class =
+               (*env)->NewGlobalRef(env, (*env)->FindClass(env, "Lorg/ldk/impl/bindings$LDKCOption_u16Z$Some;"));
+       CHECK(LDKCOption_u16Z_Some_class != NULL);
+       LDKCOption_u16Z_Some_meth = (*env)->GetMethodID(env, LDKCOption_u16Z_Some_class, "<init>", "(S)V");
+       CHECK(LDKCOption_u16Z_Some_meth != NULL);
+       LDKCOption_u16Z_None_class =
+               (*env)->NewGlobalRef(env, (*env)->FindClass(env, "Lorg/ldk/impl/bindings$LDKCOption_u16Z$None;"));
+       CHECK(LDKCOption_u16Z_None_class != NULL);
+       LDKCOption_u16Z_None_meth = (*env)->GetMethodID(env, LDKCOption_u16Z_None_class, "<init>", "()V");
+       CHECK(LDKCOption_u16Z_None_meth != NULL);
+}
+JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKCOption_1u16Z_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
+       LDKCOption_u16Z *obj = (LDKCOption_u16Z*)(ptr & ~1);
+       switch(obj->tag) {
+               case LDKCOption_u16Z_Some: {
+                       return (*env)->NewObject(env, LDKCOption_u16Z_Some_class, LDKCOption_u16Z_Some_meth, obj->some);
+               }
+               case LDKCOption_u16Z_None: {
+                       return (*env)->NewObject(env, LDKCOption_u16Z_None_class, LDKCOption_u16Z_None_meth);
+               }
+               default: abort();
+       }
+}
 static jclass LDKAPIError_APIMisuseError_class = NULL;
 static jmethodID LDKAPIError_APIMisuseError_meth = NULL;
 static jclass LDKAPIError_FeeRateTooHigh_class = NULL;
@@ -3111,6 +3337,22 @@ 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 jboolean JNICALL Java_org_ldk_impl_bindings_LDKCResult_1PaymentHashPaymentSendFailureZ_1result_1ok(JNIEnv *env, jclass clz, int64_t arg) {
+       return ((LDKCResult_PaymentHashPaymentSendFailureZ*)arg)->result_ok;
+}
+JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_LDKCResult_1PaymentHashPaymentSendFailureZ_1get_1ok(JNIEnv *env, jclass clz, int64_t arg) {
+       LDKCResult_PaymentHashPaymentSendFailureZ *val = (LDKCResult_PaymentHashPaymentSendFailureZ*)(arg & ~1);
+       CHECK(val->result_ok);
+       int8_tArray res_arr = (*env)->NewByteArray(env, 32);
+       (*env)->SetByteArrayRegion(env, res_arr, 0, 32, (*val->contents.result).data);
+       return res_arr;
+}
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKCResult_1PaymentHashPaymentSendFailureZ_1get_1err(JNIEnv *env, jclass clz, int64_t arg) {
+       LDKCResult_PaymentHashPaymentSendFailureZ *val = (LDKCResult_PaymentHashPaymentSendFailureZ*)(arg & ~1);
+       CHECK(!val->result_ok);
+       uint64_t err_ref = ((uint64_t)&(*val->contents.err)) | 1;
+       return err_ref;
+}
 static jclass LDKNetAddress_IPv4_class = NULL;
 static jmethodID LDKNetAddress_IPv4_meth = NULL;
 static jclass LDKNetAddress_IPv6_class = NULL;
@@ -3310,6 +3552,10 @@ LDKCResult_NoneChannelMonitorUpdateErrZ watch_channel_LDKWatch_jcall(const void*
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        LDKCResult_NoneChannelMonitorUpdateErrZ* ret = (LDKCResult_NoneChannelMonitorUpdateErrZ*)(*env)->CallLongMethod(env, obj, j_calls->watch_channel_meth, funding_txo_ref, monitor_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*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);
        ret_conv = CResult_NoneChannelMonitorUpdateErrZ_clone((LDKCResult_NoneChannelMonitorUpdateErrZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
@@ -3343,6 +3589,10 @@ LDKCResult_NoneChannelMonitorUpdateErrZ update_channel_LDKWatch_jcall(const void
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        LDKCResult_NoneChannelMonitorUpdateErrZ* ret = (LDKCResult_NoneChannelMonitorUpdateErrZ*)(*env)->CallLongMethod(env, obj, j_calls->update_channel_meth, funding_txo_ref, update_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*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);
        ret_conv = CResult_NoneChannelMonitorUpdateErrZ_clone((LDKCResult_NoneChannelMonitorUpdateErrZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
@@ -3362,6 +3612,10 @@ LDKCVec_MonitorEventZ release_pending_monitor_events_LDKWatch_jcall(const void*
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        int64_tArray ret = (*env)->CallObjectMethod(env, obj, j_calls->release_pending_monitor_events_meth);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to release_pending_monitor_events in LDKWatch from rust threw an exception.");
+       }
        LDKCVec_MonitorEventZ ret_constr;
        ret_constr.datalen = (*env)->GetArrayLength(env, ret);
        if (ret_constr.datalen > 0)
@@ -3381,10 +3635,9 @@ LDKCVec_MonitorEventZ release_pending_monitor_events_LDKWatch_jcall(const void*
        }
        return ret_constr;
 }
-static void* LDKWatch_JCalls_clone(const void* this_arg) {
-       LDKWatch_JCalls *j_calls = (LDKWatch_JCalls*) this_arg;
+static void LDKWatch_JCalls_cloned(LDKWatch* new_obj) {
+       LDKWatch_JCalls *j_calls = (LDKWatch_JCalls*) new_obj->this_arg;
        atomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);
-       return (void*) this_arg;
 }
 static inline LDKWatch LDKWatch_init (JNIEnv *env, jclass clz, jobject o) {
        jclass c = (*env)->GetObjectClass(env, o);
@@ -3499,14 +3752,17 @@ void broadcast_transaction_LDKBroadcasterInterface_jcall(const void* this_arg, L
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->broadcast_transaction_meth, tx_arr);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to broadcast_transaction in LDKBroadcasterInterface from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
 }
-static void* LDKBroadcasterInterface_JCalls_clone(const void* this_arg) {
-       LDKBroadcasterInterface_JCalls *j_calls = (LDKBroadcasterInterface_JCalls*) this_arg;
+static void LDKBroadcasterInterface_JCalls_cloned(LDKBroadcasterInterface* new_obj) {
+       LDKBroadcasterInterface_JCalls *j_calls = (LDKBroadcasterInterface_JCalls*) new_obj->this_arg;
        atomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);
-       return (void*) this_arg;
 }
 static inline LDKBroadcasterInterface LDKBroadcasterInterface_init (JNIEnv *env, jclass clz, jobject o) {
        jclass c = (*env)->GetObjectClass(env, o);
@@ -3581,6 +3837,10 @@ LDKSecretKey get_node_secret_LDKKeysInterface_jcall(const void* this_arg) {
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        int8_tArray ret = (*env)->CallObjectMethod(env, obj, j_calls->get_node_secret_meth);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to get_node_secret in LDKKeysInterface from rust threw an exception.");
+       }
        LDKSecretKey ret_ref;
        CHECK((*env)->GetArrayLength(env, ret) == 32);
        (*env)->GetByteArrayRegion(env, ret, 0, 32, ret_ref.bytes);
@@ -3601,6 +3861,10 @@ LDKCVec_u8Z get_destination_script_LDKKeysInterface_jcall(const void* this_arg)
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        int8_tArray ret = (*env)->CallObjectMethod(env, obj, j_calls->get_destination_script_meth);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to get_destination_script in LDKKeysInterface from rust threw an exception.");
+       }
        LDKCVec_u8Z ret_ref;
        ret_ref.datalen = (*env)->GetArrayLength(env, ret);
        ret_ref.data = MALLOC(ret_ref.datalen, "LDKCVec_u8Z Bytes");
@@ -3622,6 +3886,10 @@ LDKPublicKey get_shutdown_pubkey_LDKKeysInterface_jcall(const void* this_arg) {
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        int8_tArray ret = (*env)->CallObjectMethod(env, obj, j_calls->get_shutdown_pubkey_meth);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to get_shutdown_pubkey in LDKKeysInterface from rust threw an exception.");
+       }
        LDKPublicKey ret_ref;
        CHECK((*env)->GetArrayLength(env, ret) == 33);
        (*env)->GetByteArrayRegion(env, ret, 0, 33, ret_ref.compressed_form);
@@ -3642,6 +3910,10 @@ LDKSign get_channel_signer_LDKKeysInterface_jcall(const void* this_arg, bool inb
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        LDKSign* ret = (LDKSign*)(*env)->CallLongMethod(env, obj, j_calls->get_channel_signer_meth, inbound, channel_value_satoshis);
+       if ((*env)->ExceptionCheck(env)) {
+               (*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);
        ret_conv = Sign_clone(ret);
        if (get_jenv_res == JNI_EDETACHED) {
@@ -3661,6 +3933,10 @@ LDKThirtyTwoBytes get_secure_random_bytes_LDKKeysInterface_jcall(const void* thi
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        int8_tArray ret = (*env)->CallObjectMethod(env, obj, j_calls->get_secure_random_bytes_meth);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to get_secure_random_bytes in LDKKeysInterface from rust threw an exception.");
+       }
        LDKThirtyTwoBytes ret_ref;
        CHECK((*env)->GetArrayLength(env, ret) == 32);
        (*env)->GetByteArrayRegion(env, ret, 0, 32, ret_ref.data);
@@ -3684,6 +3960,10 @@ LDKCResult_SignDecodeErrorZ read_chan_signer_LDKKeysInterface_jcall(const void*
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        LDKCResult_SignDecodeErrorZ* ret = (LDKCResult_SignDecodeErrorZ*)(*env)->CallLongMethod(env, obj, j_calls->read_chan_signer_meth, reader_arr);
+       if ((*env)->ExceptionCheck(env)) {
+               (*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);
        ret_conv = CResult_SignDecodeErrorZ_clone((LDKCResult_SignDecodeErrorZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
@@ -3707,6 +3987,10 @@ LDKCResult_RecoverableSignatureNoneZ sign_invoice_LDKKeysInterface_jcall(const v
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        LDKCResult_RecoverableSignatureNoneZ* ret = (LDKCResult_RecoverableSignatureNoneZ*)(*env)->CallLongMethod(env, obj, j_calls->sign_invoice_meth, invoice_preimage_arr);
+       if ((*env)->ExceptionCheck(env)) {
+               (*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);
        ret_conv = CResult_RecoverableSignatureNoneZ_clone((LDKCResult_RecoverableSignatureNoneZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
@@ -3714,10 +3998,9 @@ LDKCResult_RecoverableSignatureNoneZ sign_invoice_LDKKeysInterface_jcall(const v
        }
        return ret_conv;
 }
-static void* LDKKeysInterface_JCalls_clone(const void* this_arg) {
-       LDKKeysInterface_JCalls *j_calls = (LDKKeysInterface_JCalls*) this_arg;
+static void LDKKeysInterface_JCalls_cloned(LDKKeysInterface* new_obj) {
+       LDKKeysInterface_JCalls *j_calls = (LDKKeysInterface_JCalls*) new_obj->this_arg;
        atomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);
-       return (void*) this_arg;
 }
 static inline LDKKeysInterface LDKKeysInterface_init (JNIEnv *env, jclass clz, jobject o) {
        jclass c = (*env)->GetObjectClass(env, o);
@@ -3854,15 +4137,18 @@ uint32_t get_est_sat_per_1000_weight_LDKFeeEstimator_jcall(const void* this_arg,
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        int32_t ret = (*env)->CallIntMethod(env, obj, j_calls->get_est_sat_per_1000_weight_meth, confirmation_target_conv);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to get_est_sat_per_1000_weight in LDKFeeEstimator from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
        return ret;
 }
-static void* LDKFeeEstimator_JCalls_clone(const void* this_arg) {
-       LDKFeeEstimator_JCalls *j_calls = (LDKFeeEstimator_JCalls*) this_arg;
+static void LDKFeeEstimator_JCalls_cloned(LDKFeeEstimator* new_obj) {
+       LDKFeeEstimator_JCalls *j_calls = (LDKFeeEstimator_JCalls*) new_obj->this_arg;
        atomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);
-       return (void*) this_arg;
 }
 static inline LDKFeeEstimator LDKFeeEstimator_init (JNIEnv *env, jclass clz, jobject o) {
        jclass c = (*env)->GetObjectClass(env, o);
@@ -3930,14 +4216,17 @@ void log_LDKLogger_jcall(const void* this_arg, const char* record) {
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->log_meth, record_conv);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to log in LDKLogger from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
 }
-static void* LDKLogger_JCalls_clone(const void* this_arg) {
-       LDKLogger_JCalls *j_calls = (LDKLogger_JCalls*) this_arg;
+static void LDKLogger_JCalls_cloned(LDKLogger* new_obj) {
+       LDKLogger_JCalls *j_calls = (LDKLogger_JCalls*) new_obj->this_arg;
        atomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);
-       return (void*) this_arg;
 }
 static inline LDKLogger LDKLogger_init (JNIEnv *env, jclass clz, jobject o) {
        jclass c = (*env)->GetObjectClass(env, o);
@@ -4501,6 +4790,40 @@ static inline LDKCVec_C2Tuple_TxidCVec_C2Tuple_u32ScriptZZZZ CVec_C2Tuple_TxidCV
        }
        return ret;
 }
+static jclass LDKPaymentPurpose_InvoicePayment_class = NULL;
+static jmethodID LDKPaymentPurpose_InvoicePayment_meth = NULL;
+static jclass LDKPaymentPurpose_SpontaneousPayment_class = NULL;
+static jmethodID LDKPaymentPurpose_SpontaneousPayment_meth = NULL;
+JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKPaymentPurpose_init (JNIEnv *env, jclass clz) {
+       LDKPaymentPurpose_InvoicePayment_class =
+               (*env)->NewGlobalRef(env, (*env)->FindClass(env, "Lorg/ldk/impl/bindings$LDKPaymentPurpose$InvoicePayment;"));
+       CHECK(LDKPaymentPurpose_InvoicePayment_class != NULL);
+       LDKPaymentPurpose_InvoicePayment_meth = (*env)->GetMethodID(env, LDKPaymentPurpose_InvoicePayment_class, "<init>", "([B[BJ)V");
+       CHECK(LDKPaymentPurpose_InvoicePayment_meth != NULL);
+       LDKPaymentPurpose_SpontaneousPayment_class =
+               (*env)->NewGlobalRef(env, (*env)->FindClass(env, "Lorg/ldk/impl/bindings$LDKPaymentPurpose$SpontaneousPayment;"));
+       CHECK(LDKPaymentPurpose_SpontaneousPayment_class != NULL);
+       LDKPaymentPurpose_SpontaneousPayment_meth = (*env)->GetMethodID(env, LDKPaymentPurpose_SpontaneousPayment_class, "<init>", "([B)V");
+       CHECK(LDKPaymentPurpose_SpontaneousPayment_meth != NULL);
+}
+JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKPaymentPurpose_1ref_1from_1ptr(JNIEnv *env, jclass clz, int64_t ptr) {
+       LDKPaymentPurpose *obj = (LDKPaymentPurpose*)(ptr & ~1);
+       switch(obj->tag) {
+               case LDKPaymentPurpose_InvoicePayment: {
+                       int8_tArray payment_preimage_arr = (*env)->NewByteArray(env, 32);
+                       (*env)->SetByteArrayRegion(env, payment_preimage_arr, 0, 32, obj->invoice_payment.payment_preimage.data);
+                       int8_tArray payment_secret_arr = (*env)->NewByteArray(env, 32);
+                       (*env)->SetByteArrayRegion(env, payment_secret_arr, 0, 32, obj->invoice_payment.payment_secret.data);
+                       return (*env)->NewObject(env, LDKPaymentPurpose_InvoicePayment_class, LDKPaymentPurpose_InvoicePayment_meth, payment_preimage_arr, payment_secret_arr, obj->invoice_payment.user_payment_id);
+               }
+               case LDKPaymentPurpose_SpontaneousPayment: {
+                       int8_tArray spontaneous_payment_arr = (*env)->NewByteArray(env, 32);
+                       (*env)->SetByteArrayRegion(env, spontaneous_payment_arr, 0, 32, obj->spontaneous_payment.data);
+                       return (*env)->NewObject(env, LDKPaymentPurpose_SpontaneousPayment_class, LDKPaymentPurpose_SpontaneousPayment_meth, spontaneous_payment_arr);
+               }
+               default: abort();
+       }
+}
 static jclass LDKEvent_FundingGenerationReady_class = NULL;
 static jmethodID LDKEvent_FundingGenerationReady_meth = NULL;
 static jclass LDKEvent_PaymentReceived_class = NULL;
@@ -4522,7 +4845,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_00024LDKEvent_init (JNIEnv *en
        LDKEvent_PaymentReceived_class =
                (*env)->NewGlobalRef(env, (*env)->FindClass(env, "Lorg/ldk/impl/bindings$LDKEvent$PaymentReceived;"));
        CHECK(LDKEvent_PaymentReceived_class != NULL);
-       LDKEvent_PaymentReceived_meth = (*env)->GetMethodID(env, LDKEvent_PaymentReceived_class, "<init>", "([B[B[BJJ)V");
+       LDKEvent_PaymentReceived_meth = (*env)->GetMethodID(env, LDKEvent_PaymentReceived_class, "<init>", "([BJJ)V");
        CHECK(LDKEvent_PaymentReceived_meth != NULL);
        LDKEvent_PaymentSent_class =
                (*env)->NewGlobalRef(env, (*env)->FindClass(env, "Lorg/ldk/impl/bindings$LDKEvent$PaymentSent;"));
@@ -4559,11 +4882,8 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKEvent_1ref_1from_1ptr(JN
                case LDKEvent_PaymentReceived: {
                        int8_tArray payment_hash_arr = (*env)->NewByteArray(env, 32);
                        (*env)->SetByteArrayRegion(env, payment_hash_arr, 0, 32, obj->payment_received.payment_hash.data);
-                       int8_tArray payment_preimage_arr = (*env)->NewByteArray(env, 32);
-                       (*env)->SetByteArrayRegion(env, payment_preimage_arr, 0, 32, obj->payment_received.payment_preimage.data);
-                       int8_tArray payment_secret_arr = (*env)->NewByteArray(env, 32);
-                       (*env)->SetByteArrayRegion(env, payment_secret_arr, 0, 32, obj->payment_received.payment_secret.data);
-                       return (*env)->NewObject(env, LDKEvent_PaymentReceived_class, LDKEvent_PaymentReceived_meth, payment_hash_arr, payment_preimage_arr, payment_secret_arr, obj->payment_received.amt, obj->payment_received.user_payment_id);
+                       uint64_t purpose_ref = ((uint64_t)&obj->payment_received.purpose) | 1;
+                       return (*env)->NewObject(env, LDKEvent_PaymentReceived_class, LDKEvent_PaymentReceived_meth, payment_hash_arr, obj->payment_received.amt, purpose_ref);
                }
                case LDKEvent_PaymentSent: {
                        int8_tArray payment_preimage_arr = (*env)->NewByteArray(env, 32);
@@ -5965,6 +6285,10 @@ LDKCVec_MessageSendEventZ get_and_clear_pending_msg_events_LDKMessageSendEventsP
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        int64_tArray ret = (*env)->CallObjectMethod(env, obj, j_calls->get_and_clear_pending_msg_events_meth);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to get_and_clear_pending_msg_events in LDKMessageSendEventsProvider from rust threw an exception.");
+       }
        LDKCVec_MessageSendEventZ ret_constr;
        ret_constr.datalen = (*env)->GetArrayLength(env, ret);
        if (ret_constr.datalen > 0)
@@ -5984,10 +6308,9 @@ LDKCVec_MessageSendEventZ get_and_clear_pending_msg_events_LDKMessageSendEventsP
        }
        return ret_constr;
 }
-static void* LDKMessageSendEventsProvider_JCalls_clone(const void* this_arg) {
-       LDKMessageSendEventsProvider_JCalls *j_calls = (LDKMessageSendEventsProvider_JCalls*) this_arg;
+static void LDKMessageSendEventsProvider_JCalls_cloned(LDKMessageSendEventsProvider* new_obj) {
+       LDKMessageSendEventsProvider_JCalls *j_calls = (LDKMessageSendEventsProvider_JCalls*) new_obj->this_arg;
        atomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);
-       return (void*) this_arg;
 }
 static inline LDKMessageSendEventsProvider LDKMessageSendEventsProvider_init (JNIEnv *env, jclass clz, jobject o) {
        jclass c = (*env)->GetObjectClass(env, o);
@@ -6065,14 +6388,17 @@ void handle_event_LDKEventHandler_jcall(const void* this_arg, LDKEvent event) {
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_event_meth, event_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to handle_event in LDKEventHandler from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
 }
-static void* LDKEventHandler_JCalls_clone(const void* this_arg) {
-       LDKEventHandler_JCalls *j_calls = (LDKEventHandler_JCalls*) this_arg;
+static void LDKEventHandler_JCalls_cloned(LDKEventHandler* new_obj) {
+       LDKEventHandler_JCalls *j_calls = (LDKEventHandler_JCalls*) new_obj->this_arg;
        atomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);
-       return (void*) this_arg;
 }
 static inline LDKEventHandler LDKEventHandler_init (JNIEnv *env, jclass clz, jobject o) {
        jclass c = (*env)->GetObjectClass(env, o);
@@ -6139,14 +6465,17 @@ void process_pending_events_LDKEventsProvider_jcall(const void* this_arg, LDKEve
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->process_pending_events_meth, (uint64_t)ret);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to process_pending_events in LDKEventsProvider from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
 }
-static void* LDKEventsProvider_JCalls_clone(const void* this_arg) {
-       LDKEventsProvider_JCalls *j_calls = (LDKEventsProvider_JCalls*) this_arg;
+static void LDKEventsProvider_JCalls_cloned(LDKEventsProvider* new_obj) {
+       LDKEventsProvider_JCalls *j_calls = (LDKEventsProvider_JCalls*) new_obj->this_arg;
        atomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);
-       return (void*) this_arg;
 }
 static inline LDKEventsProvider LDKEventsProvider_init (JNIEnv *env, jclass clz, jobject o) {
        jclass c = (*env)->GetObjectClass(env, o);
@@ -6175,7 +6504,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_EventsProvider_1process_1pendi
        LDKEventHandler handler_conv = *(LDKEventHandler*)(((uint64_t)handler) & ~1);
        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_clone(handler_conv.this_arg);
+               LDKEventHandler_JCalls_cloned(&handler_conv);
        }
        (this_arg_conv->process_pending_events)(this_arg_conv->this_arg, handler_conv);
 }
@@ -6217,6 +6546,10 @@ LDKCResult_TxOutAccessErrorZ get_utxo_LDKAccess_jcall(const void* this_arg, cons
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        LDKCResult_TxOutAccessErrorZ* ret = (LDKCResult_TxOutAccessErrorZ*)(*env)->CallLongMethod(env, obj, j_calls->get_utxo_meth, genesis_hash_arr, short_channel_id);
+       if ((*env)->ExceptionCheck(env)) {
+               (*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);
        ret_conv = CResult_TxOutAccessErrorZ_clone((LDKCResult_TxOutAccessErrorZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
@@ -6224,10 +6557,9 @@ LDKCResult_TxOutAccessErrorZ get_utxo_LDKAccess_jcall(const void* this_arg, cons
        }
        return ret_conv;
 }
-static void* LDKAccess_JCalls_clone(const void* this_arg) {
-       LDKAccess_JCalls *j_calls = (LDKAccess_JCalls*) this_arg;
+static void LDKAccess_JCalls_cloned(LDKAccess* new_obj) {
+       LDKAccess_JCalls *j_calls = (LDKAccess_JCalls*) new_obj->this_arg;
        atomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);
-       return (void*) this_arg;
 }
 static inline LDKAccess LDKAccess_init (JNIEnv *env, jclass clz, jobject o) {
        jclass c = (*env)->GetObjectClass(env, o);
@@ -6301,6 +6633,10 @@ void block_connected_LDKListen_jcall(const void* this_arg, LDKu8slice block, uin
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->block_connected_meth, block_arr, height);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to block_connected in LDKListen from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -6319,14 +6655,17 @@ void block_disconnected_LDKListen_jcall(const void* this_arg, const uint8_t (* h
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->block_disconnected_meth, header_arr, height);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to block_disconnected in LDKListen from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
 }
-static void* LDKListen_JCalls_clone(const void* this_arg) {
-       LDKListen_JCalls *j_calls = (LDKListen_JCalls*) this_arg;
+static void LDKListen_JCalls_cloned(LDKListen* new_obj) {
+       LDKListen_JCalls *j_calls = (LDKListen_JCalls*) new_obj->this_arg;
        atomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);
-       return (void*) this_arg;
 }
 static inline LDKListen LDKListen_init (JNIEnv *env, jclass clz, jobject o) {
        jclass c = (*env)->GetObjectClass(env, o);
@@ -6421,6 +6760,10 @@ void transactions_confirmed_LDKConfirm_jcall(const void* this_arg, const uint8_t
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->transactions_confirmed_meth, header_arr, txdata_arr, height);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to transactions_confirmed in LDKConfirm from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -6439,6 +6782,10 @@ void transaction_unconfirmed_LDKConfirm_jcall(const void* this_arg, const uint8_
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->transaction_unconfirmed_meth, txid_arr);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to transaction_unconfirmed in LDKConfirm from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -6457,6 +6804,10 @@ void best_block_updated_LDKConfirm_jcall(const void* this_arg, const uint8_t (*
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->best_block_updated_meth, header_arr, height);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to best_block_updated in LDKConfirm from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -6473,6 +6824,10 @@ LDKCVec_TxidZ get_relevant_txids_LDKConfirm_jcall(const void* this_arg) {
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        jobjectArray ret = (*env)->CallObjectMethod(env, obj, j_calls->get_relevant_txids_meth);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to get_relevant_txids in LDKConfirm from rust threw an exception.");
+       }
        LDKCVec_TxidZ ret_constr;
        ret_constr.datalen = (*env)->GetArrayLength(env, ret);
        if (ret_constr.datalen > 0)
@@ -6491,10 +6846,9 @@ LDKCVec_TxidZ get_relevant_txids_LDKConfirm_jcall(const void* this_arg) {
        }
        return ret_constr;
 }
-static void* LDKConfirm_JCalls_clone(const void* this_arg) {
-       LDKConfirm_JCalls *j_calls = (LDKConfirm_JCalls*) this_arg;
+static void LDKConfirm_JCalls_cloned(LDKConfirm* new_obj) {
+       LDKConfirm_JCalls *j_calls = (LDKConfirm_JCalls*) new_obj->this_arg;
        atomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);
-       return (void*) this_arg;
 }
 static inline LDKConfirm LDKConfirm_init (JNIEnv *env, jclass clz, jobject o) {
        jclass c = (*env)->GetObjectClass(env, o);
@@ -6623,6 +6977,10 @@ void register_tx_LDKFilter_jcall(const void* this_arg, const uint8_t (* txid)[32
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->register_tx_meth, txid_arr, script_pubkey_arr);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to register_tx in LDKFilter from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -6646,6 +7004,10 @@ LDKCOption_C2Tuple_usizeTransactionZZ register_output_LDKFilter_jcall(const void
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        LDKCOption_C2Tuple_usizeTransactionZZ* ret = (LDKCOption_C2Tuple_usizeTransactionZZ*)(*env)->CallLongMethod(env, obj, j_calls->register_output_meth, output_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*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);
        ret_conv = COption_C2Tuple_usizeTransactionZZ_clone((LDKCOption_C2Tuple_usizeTransactionZZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
@@ -6653,10 +7015,9 @@ LDKCOption_C2Tuple_usizeTransactionZZ register_output_LDKFilter_jcall(const void
        }
        return ret_conv;
 }
-static void* LDKFilter_JCalls_clone(const void* this_arg) {
-       LDKFilter_JCalls *j_calls = (LDKFilter_JCalls*) this_arg;
+static void LDKFilter_JCalls_cloned(LDKFilter* new_obj) {
+       LDKFilter_JCalls *j_calls = (LDKFilter_JCalls*) new_obj->this_arg;
        atomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);
-       return (void*) this_arg;
 }
 static inline LDKFilter LDKFilter_init (JNIEnv *env, jclass clz, jobject o) {
        jclass c = (*env)->GetObjectClass(env, o);
@@ -6759,6 +7120,10 @@ LDKCResult_NoneChannelMonitorUpdateErrZ persist_new_channel_LDKPersist_jcall(con
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        LDKCResult_NoneChannelMonitorUpdateErrZ* ret = (LDKCResult_NoneChannelMonitorUpdateErrZ*)(*env)->CallLongMethod(env, obj, j_calls->persist_new_channel_meth, id_ref, data_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*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);
        ret_conv = CResult_NoneChannelMonitorUpdateErrZ_clone((LDKCResult_NoneChannelMonitorUpdateErrZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
@@ -6801,6 +7166,10 @@ LDKCResult_NoneChannelMonitorUpdateErrZ update_persisted_channel_LDKPersist_jcal
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        LDKCResult_NoneChannelMonitorUpdateErrZ* ret = (LDKCResult_NoneChannelMonitorUpdateErrZ*)(*env)->CallLongMethod(env, obj, j_calls->update_persisted_channel_meth, id_ref, update_ref, data_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*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);
        ret_conv = CResult_NoneChannelMonitorUpdateErrZ_clone((LDKCResult_NoneChannelMonitorUpdateErrZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
@@ -6808,10 +7177,9 @@ LDKCResult_NoneChannelMonitorUpdateErrZ update_persisted_channel_LDKPersist_jcal
        }
        return ret_conv;
 }
-static void* LDKPersist_JCalls_clone(const void* this_arg) {
-       LDKPersist_JCalls *j_calls = (LDKPersist_JCalls*) this_arg;
+static void LDKPersist_JCalls_cloned(LDKPersist* new_obj) {
+       LDKPersist_JCalls *j_calls = (LDKPersist_JCalls*) new_obj->this_arg;
        atomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);
-       return (void*) this_arg;
 }
 static inline LDKPersist LDKPersist_init (JNIEnv *env, jclass clz, jobject o) {
        jclass c = (*env)->GetObjectClass(env, o);
@@ -6941,6 +7309,10 @@ void handle_open_channel_LDKChannelMessageHandler_jcall(const void* this_arg, LD
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_open_channel_meth, their_node_id_arr, their_features_ref, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to handle_open_channel in LDKChannelMessageHandler from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -6974,6 +7346,10 @@ void handle_accept_channel_LDKChannelMessageHandler_jcall(const void* this_arg,
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_accept_channel_meth, their_node_id_arr, their_features_ref, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to handle_accept_channel in LDKChannelMessageHandler from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -7000,6 +7376,10 @@ void handle_funding_created_LDKChannelMessageHandler_jcall(const void* this_arg,
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_funding_created_meth, their_node_id_arr, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to handle_funding_created in LDKChannelMessageHandler from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -7026,6 +7406,10 @@ void handle_funding_signed_LDKChannelMessageHandler_jcall(const void* this_arg,
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_funding_signed_meth, their_node_id_arr, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to handle_funding_signed in LDKChannelMessageHandler from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -7052,6 +7436,10 @@ void handle_funding_locked_LDKChannelMessageHandler_jcall(const void* this_arg,
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_funding_locked_meth, their_node_id_arr, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to handle_funding_locked in LDKChannelMessageHandler from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -7086,6 +7474,10 @@ void handle_shutdown_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPub
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_shutdown_meth, their_node_id_arr, their_features_ref, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to handle_shutdown in LDKChannelMessageHandler from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -7112,6 +7504,10 @@ void handle_closing_signed_LDKChannelMessageHandler_jcall(const void* this_arg,
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_closing_signed_meth, their_node_id_arr, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to handle_closing_signed in LDKChannelMessageHandler from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -7138,6 +7534,10 @@ void handle_update_add_htlc_LDKChannelMessageHandler_jcall(const void* this_arg,
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_update_add_htlc_meth, their_node_id_arr, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to handle_update_add_htlc in LDKChannelMessageHandler from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -7164,6 +7564,10 @@ void handle_update_fulfill_htlc_LDKChannelMessageHandler_jcall(const void* this_
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_update_fulfill_htlc_meth, their_node_id_arr, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to handle_update_fulfill_htlc in LDKChannelMessageHandler from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -7190,6 +7594,10 @@ void handle_update_fail_htlc_LDKChannelMessageHandler_jcall(const void* this_arg
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_update_fail_htlc_meth, their_node_id_arr, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to handle_update_fail_htlc in LDKChannelMessageHandler from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -7216,6 +7624,10 @@ void handle_update_fail_malformed_htlc_LDKChannelMessageHandler_jcall(const void
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_update_fail_malformed_htlc_meth, their_node_id_arr, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to handle_update_fail_malformed_htlc in LDKChannelMessageHandler from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -7242,6 +7654,10 @@ void handle_commitment_signed_LDKChannelMessageHandler_jcall(const void* this_ar
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_commitment_signed_meth, their_node_id_arr, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to handle_commitment_signed in LDKChannelMessageHandler from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -7268,6 +7684,10 @@ void handle_revoke_and_ack_LDKChannelMessageHandler_jcall(const void* this_arg,
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_revoke_and_ack_meth, their_node_id_arr, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to handle_revoke_and_ack in LDKChannelMessageHandler from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -7294,6 +7714,10 @@ void handle_update_fee_LDKChannelMessageHandler_jcall(const void* this_arg, LDKP
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_update_fee_meth, their_node_id_arr, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to handle_update_fee in LDKChannelMessageHandler from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -7320,6 +7744,10 @@ void handle_announcement_signatures_LDKChannelMessageHandler_jcall(const void* t
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_announcement_signatures_meth, their_node_id_arr, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to handle_announcement_signatures in LDKChannelMessageHandler from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -7338,6 +7766,10 @@ void peer_disconnected_LDKChannelMessageHandler_jcall(const void* this_arg, LDKP
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->peer_disconnected_meth, their_node_id_arr, no_connection_possible);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to peer_disconnected in LDKChannelMessageHandler from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -7364,6 +7796,10 @@ void peer_connected_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPubl
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->peer_connected_meth, their_node_id_arr, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to peer_connected in LDKChannelMessageHandler from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -7390,6 +7826,10 @@ void handle_channel_reestablish_LDKChannelMessageHandler_jcall(const void* this_
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_channel_reestablish_meth, their_node_id_arr, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to handle_channel_reestablish in LDKChannelMessageHandler from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -7416,6 +7856,10 @@ void handle_channel_update_LDKChannelMessageHandler_jcall(const void* this_arg,
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_channel_update_meth, their_node_id_arr, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to handle_channel_update in LDKChannelMessageHandler from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -7442,15 +7886,18 @@ void handle_error_LDKChannelMessageHandler_jcall(const void* this_arg, LDKPublic
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_error_meth, their_node_id_arr, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to handle_error in LDKChannelMessageHandler from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
 }
-static void* LDKChannelMessageHandler_JCalls_clone(const void* this_arg) {
-       LDKChannelMessageHandler_JCalls *j_calls = (LDKChannelMessageHandler_JCalls*) this_arg;
+static void LDKChannelMessageHandler_JCalls_cloned(LDKChannelMessageHandler* new_obj) {
+       LDKChannelMessageHandler_JCalls *j_calls = (LDKChannelMessageHandler_JCalls*) new_obj->this_arg;
        atomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);
        atomic_fetch_add_explicit(&j_calls->MessageSendEventsProvider->refcnt, 1, memory_order_release);
-       return (void*) this_arg;
 }
 static inline LDKChannelMessageHandler LDKChannelMessageHandler_init (JNIEnv *env, jclass clz, jobject o, jobject MessageSendEventsProvider) {
        jclass c = (*env)->GetObjectClass(env, o);
@@ -7533,6 +7980,12 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKChannelMessageHandler_1n
        *res_ptr = LDKChannelMessageHandler_init(env, clz, o, MessageSendEventsProvider);
        return (uint64_t)res_ptr;
 }
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKChannelMessageHandler_1get_1MessageSendEventsProvider(JNIEnv *env, jclass clz, int64_t arg) {
+       LDKChannelMessageHandler *inp = (LDKChannelMessageHandler *)(arg & ~1);
+       uint64_t res_ptr = (uint64_t)&inp->MessageSendEventsProvider;
+       DO_ASSERT((res_ptr & 1) == 0);
+       return (int64_t)(res_ptr | 1);
+}
 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);
        LDKPublicKey their_node_id_ref;
@@ -7815,6 +8268,10 @@ LDKCResult_boolLightningErrorZ handle_node_announcement_LDKRoutingMessageHandler
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        LDKCResult_boolLightningErrorZ* ret = (LDKCResult_boolLightningErrorZ*)(*env)->CallLongMethod(env, obj, j_calls->handle_node_announcement_meth, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*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);
        ret_conv = CResult_boolLightningErrorZ_clone((LDKCResult_boolLightningErrorZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
@@ -7842,6 +8299,10 @@ LDKCResult_boolLightningErrorZ handle_channel_announcement_LDKRoutingMessageHand
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        LDKCResult_boolLightningErrorZ* ret = (LDKCResult_boolLightningErrorZ*)(*env)->CallLongMethod(env, obj, j_calls->handle_channel_announcement_meth, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*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);
        ret_conv = CResult_boolLightningErrorZ_clone((LDKCResult_boolLightningErrorZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
@@ -7869,6 +8330,10 @@ LDKCResult_boolLightningErrorZ handle_channel_update_LDKRoutingMessageHandler_jc
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        LDKCResult_boolLightningErrorZ* ret = (LDKCResult_boolLightningErrorZ*)(*env)->CallLongMethod(env, obj, j_calls->handle_channel_update_meth, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*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);
        ret_conv = CResult_boolLightningErrorZ_clone((LDKCResult_boolLightningErrorZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
@@ -7889,6 +8354,10 @@ void handle_htlc_fail_channel_update_LDKRoutingMessageHandler_jcall(const void*
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->handle_htlc_fail_channel_update_meth, ret_update);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to handle_htlc_fail_channel_update in LDKRoutingMessageHandler from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -7905,6 +8374,10 @@ LDKCVec_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZZ get_next_channel
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        int64_tArray ret = (*env)->CallObjectMethod(env, obj, j_calls->get_next_channel_announcements_meth, starting_point, batch_amount);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to get_next_channel_announcements in LDKRoutingMessageHandler from rust threw an exception.");
+       }
        LDKCVec_C3Tuple_ChannelAnnouncementChannelUpdateChannelUpdateZZ ret_constr;
        ret_constr.datalen = (*env)->GetArrayLength(env, ret);
        if (ret_constr.datalen > 0)
@@ -7938,6 +8411,10 @@ LDKCVec_NodeAnnouncementZ get_next_node_announcements_LDKRoutingMessageHandler_j
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        int64_tArray ret = (*env)->CallObjectMethod(env, obj, j_calls->get_next_node_announcements_meth, starting_point_arr, batch_amount);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to get_next_node_announcements in LDKRoutingMessageHandler from rust threw an exception.");
+       }
        LDKCVec_NodeAnnouncementZ ret_constr;
        ret_constr.datalen = (*env)->GetArrayLength(env, ret);
        if (ret_constr.datalen > 0)
@@ -7981,6 +8458,10 @@ void sync_routing_table_LDKRoutingMessageHandler_jcall(const void* this_arg, LDK
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->sync_routing_table_meth, their_node_id_arr, init_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to sync_routing_table in LDKRoutingMessageHandler from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -8006,6 +8487,10 @@ LDKCResult_NoneLightningErrorZ handle_reply_channel_range_LDKRoutingMessageHandl
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        LDKCResult_NoneLightningErrorZ* ret = (LDKCResult_NoneLightningErrorZ*)(*env)->CallLongMethod(env, obj, j_calls->handle_reply_channel_range_meth, their_node_id_arr, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*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);
        ret_conv = CResult_NoneLightningErrorZ_clone((LDKCResult_NoneLightningErrorZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
@@ -8034,6 +8519,10 @@ LDKCResult_NoneLightningErrorZ handle_reply_short_channel_ids_end_LDKRoutingMess
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        LDKCResult_NoneLightningErrorZ* ret = (LDKCResult_NoneLightningErrorZ*)(*env)->CallLongMethod(env, obj, j_calls->handle_reply_short_channel_ids_end_meth, their_node_id_arr, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*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);
        ret_conv = CResult_NoneLightningErrorZ_clone((LDKCResult_NoneLightningErrorZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
@@ -8062,6 +8551,10 @@ LDKCResult_NoneLightningErrorZ handle_query_channel_range_LDKRoutingMessageHandl
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        LDKCResult_NoneLightningErrorZ* ret = (LDKCResult_NoneLightningErrorZ*)(*env)->CallLongMethod(env, obj, j_calls->handle_query_channel_range_meth, their_node_id_arr, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*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);
        ret_conv = CResult_NoneLightningErrorZ_clone((LDKCResult_NoneLightningErrorZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
@@ -8090,6 +8583,10 @@ LDKCResult_NoneLightningErrorZ handle_query_short_channel_ids_LDKRoutingMessageH
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        LDKCResult_NoneLightningErrorZ* ret = (LDKCResult_NoneLightningErrorZ*)(*env)->CallLongMethod(env, obj, j_calls->handle_query_short_channel_ids_meth, their_node_id_arr, msg_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*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);
        ret_conv = CResult_NoneLightningErrorZ_clone((LDKCResult_NoneLightningErrorZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
@@ -8097,11 +8594,10 @@ LDKCResult_NoneLightningErrorZ handle_query_short_channel_ids_LDKRoutingMessageH
        }
        return ret_conv;
 }
-static void* LDKRoutingMessageHandler_JCalls_clone(const void* this_arg) {
-       LDKRoutingMessageHandler_JCalls *j_calls = (LDKRoutingMessageHandler_JCalls*) this_arg;
+static void LDKRoutingMessageHandler_JCalls_cloned(LDKRoutingMessageHandler* new_obj) {
+       LDKRoutingMessageHandler_JCalls *j_calls = (LDKRoutingMessageHandler_JCalls*) new_obj->this_arg;
        atomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);
        atomic_fetch_add_explicit(&j_calls->MessageSendEventsProvider->refcnt, 1, memory_order_release);
-       return (void*) this_arg;
 }
 static inline LDKRoutingMessageHandler LDKRoutingMessageHandler_init (JNIEnv *env, jclass clz, jobject o, jobject MessageSendEventsProvider) {
        jclass c = (*env)->GetObjectClass(env, o);
@@ -8157,6 +8653,12 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKRoutingMessageHandler_1n
        *res_ptr = LDKRoutingMessageHandler_init(env, clz, o, MessageSendEventsProvider);
        return (uint64_t)res_ptr;
 }
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_LDKRoutingMessageHandler_1get_1MessageSendEventsProvider(JNIEnv *env, jclass clz, int64_t arg) {
+       LDKRoutingMessageHandler *inp = (LDKRoutingMessageHandler *)(arg & ~1);
+       uint64_t res_ptr = (uint64_t)&inp->MessageSendEventsProvider;
+       DO_ASSERT((res_ptr & 1) == 0);
+       return (int64_t)(res_ptr | 1);
+}
 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);
        LDKNodeAnnouncement msg_conv;
@@ -8339,6 +8841,10 @@ uintptr_t send_data_LDKSocketDescriptor_jcall(void* this_arg, LDKu8slice data, b
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        int64_t ret = (*env)->CallLongMethod(env, obj, j_calls->send_data_meth, data_arr, resume_read);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to send_data in LDKSocketDescriptor from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -8356,6 +8862,10 @@ void disconnect_socket_LDKSocketDescriptor_jcall(void* this_arg) {
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        (*env)->CallVoidMethod(env, obj, j_calls->disconnect_socket_meth);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to disconnect_socket in LDKSocketDescriptor from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -8374,6 +8884,10 @@ bool eq_LDKSocketDescriptor_jcall(const void* this_arg, const LDKSocketDescripto
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        jboolean ret = (*env)->CallBooleanMethod(env, obj, j_calls->eq_meth, (uint64_t)other_arg_clone);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to eq in LDKSocketDescriptor from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
@@ -8391,15 +8905,18 @@ uint64_t hash_LDKSocketDescriptor_jcall(const void* this_arg) {
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        int64_t ret = (*env)->CallLongMethod(env, obj, j_calls->hash_meth);
+       if ((*env)->ExceptionCheck(env)) {
+               (*env)->ExceptionDescribe(env);
+               (*env)->FatalError(env, "A call to hash in LDKSocketDescriptor from rust threw an exception.");
+       }
        if (get_jenv_res == JNI_EDETACHED) {
                DO_ASSERT((*j_calls->vm)->DetachCurrentThread(j_calls->vm) == JNI_OK);
        }
        return ret;
 }
-static void* LDKSocketDescriptor_JCalls_clone(const void* this_arg) {
-       LDKSocketDescriptor_JCalls *j_calls = (LDKSocketDescriptor_JCalls*) this_arg;
+static void LDKSocketDescriptor_JCalls_cloned(LDKSocketDescriptor* new_obj) {
+       LDKSocketDescriptor_JCalls *j_calls = (LDKSocketDescriptor_JCalls*) new_obj->this_arg;
        atomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);
-       return (void*) this_arg;
 }
 static inline LDKSocketDescriptor LDKSocketDescriptor_init (JNIEnv *env, jclass clz, jobject o) {
        jclass c = (*env)->GetObjectClass(env, o);
@@ -8423,7 +8940,7 @@ static inline LDKSocketDescriptor LDKSocketDescriptor_init (JNIEnv *env, jclass
                .disconnect_socket = disconnect_socket_LDKSocketDescriptor_jcall,
                .eq = eq_LDKSocketDescriptor_jcall,
                .hash = hash_LDKSocketDescriptor_jcall,
-               .clone = LDKSocketDescriptor_JCalls_clone,
+               .cloned = LDKSocketDescriptor_JCalls_cloned,
                .free = LDKSocketDescriptor_JCalls_free,
        };
        return ret;
@@ -8497,6 +9014,10 @@ LDKCResult_NoneErrorZ persist_manager_LDKChannelManagerPersister_jcall(const voi
        jobject obj = (*env)->NewLocalRef(env, j_calls->o);
        CHECK(obj != NULL);
        LDKCResult_NoneErrorZ* ret = (LDKCResult_NoneErrorZ*)(*env)->CallLongMethod(env, obj, j_calls->persist_manager_meth, channel_manager_ref);
+       if ((*env)->ExceptionCheck(env)) {
+               (*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);
        ret_conv = CResult_NoneErrorZ_clone((LDKCResult_NoneErrorZ*)(((uint64_t)ret) & ~1));
        if (get_jenv_res == JNI_EDETACHED) {
@@ -8504,10 +9025,9 @@ LDKCResult_NoneErrorZ persist_manager_LDKChannelManagerPersister_jcall(const voi
        }
        return ret_conv;
 }
-static void* LDKChannelManagerPersister_JCalls_clone(const void* this_arg) {
-       LDKChannelManagerPersister_JCalls *j_calls = (LDKChannelManagerPersister_JCalls*) this_arg;
+static void LDKChannelManagerPersister_JCalls_cloned(LDKChannelManagerPersister* new_obj) {
+       LDKChannelManagerPersister_JCalls *j_calls = (LDKChannelManagerPersister_JCalls*) new_obj->this_arg;
        atomic_fetch_add_explicit(&j_calls->refcnt, 1, memory_order_release);
-       return (void*) this_arg;
 }
 static inline LDKChannelManagerPersister LDKChannelManagerPersister_init (JNIEnv *env, jclass clz, jobject o) {
        jclass c = (*env)->GetObjectClass(env, o);
@@ -8590,12 +9110,14 @@ JNIEXPORT jobject JNICALL Java_org_ldk_impl_bindings_LDKFallback_1ref_1from_1ptr
 JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings__1ldk_1get_1compiled_1version(JNIEnv *env, jclass clz) {
        LDKStr ret_str = _ldk_get_compiled_version();
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
+       Str_free(ret_str);
        return ret_conv;
 }
 
 JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings__1ldk_1c_1bindings_1get_1compiled_1version(JNIEnv *env, jclass clz) {
        LDKStr ret_str = _ldk_c_bindings_get_compiled_version();
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
+       Str_free(ret_str);
        return ret_conv;
 }
 
@@ -9837,7 +10359,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1SignDecodeErrorZ_1
        LDKSign o_conv = *(LDKSign*)(((uint64_t)o) & ~1);
        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_clone(o_conv.this_arg);
+               LDKSign_JCalls_cloned(&o_conv);
        }
        LDKCResult_SignDecodeErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_SignDecodeErrorZ), "LDKCResult_SignDecodeErrorZ");
        *ret_conv = CResult_SignDecodeErrorZ_ok(o_conv);
@@ -10118,6 +10640,35 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1CVec_1C2Tuple_1BlockH
        CResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ_free(_res_conv);
 }
 
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1u16Z_1some(JNIEnv *env, jclass clz, int16_t o) {
+       LDKCOption_u16Z *ret_copy = MALLOC(sizeof(LDKCOption_u16Z), "LDKCOption_u16Z");
+       *ret_copy = COption_u16Z_some(o);
+       uint64_t ret_ref = (uint64_t)ret_copy;
+       return ret_ref;
+}
+
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1u16Z_1none(JNIEnv *env, jclass clz) {
+       LDKCOption_u16Z *ret_copy = MALLOC(sizeof(LDKCOption_u16Z), "LDKCOption_u16Z");
+       *ret_copy = COption_u16Z_none();
+       uint64_t ret_ref = (uint64_t)ret_copy;
+       return ret_ref;
+}
+
+JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_COption_1u16Z_1free(JNIEnv *env, jclass clz, int64_t _res) {
+       if ((_res & 1) != 0) return;
+       LDKCOption_u16Z _res_conv = *(LDKCOption_u16Z*)(((uint64_t)_res) & ~1);
+       FREE((void*)_res);
+       COption_u16Z_free(_res_conv);
+}
+
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_COption_1u16Z_1clone(JNIEnv *env, jclass clz, int64_t orig) {
+       LDKCOption_u16Z* orig_conv = (LDKCOption_u16Z*)orig;
+       LDKCOption_u16Z *ret_copy = MALLOC(sizeof(LDKCOption_u16Z), "LDKCOption_u16Z");
+       *ret_copy = COption_u16Z_clone(orig_conv);
+       uint64_t ret_ref = (uint64_t)ret_copy;
+       return ret_ref;
+}
+
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NoneAPIErrorZ_1ok(JNIEnv *env, jclass clz) {
        LDKCResult_NoneAPIErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NoneAPIErrorZ), "LDKCResult_NoneAPIErrorZ");
        *ret_conv = CResult_NoneAPIErrorZ_ok();
@@ -10208,6 +10759,36 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1NonePaymentSendFai
        return (uint64_t)ret_conv;
 }
 
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentHashPaymentSendFailureZ_1ok(JNIEnv *env, jclass clz, int8_tArray o) {
+       LDKThirtyTwoBytes o_ref;
+       CHECK((*env)->GetArrayLength(env, o) == 32);
+       (*env)->GetByteArrayRegion(env, o, 0, 32, o_ref.data);
+       LDKCResult_PaymentHashPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentHashPaymentSendFailureZ), "LDKCResult_PaymentHashPaymentSendFailureZ");
+       *ret_conv = CResult_PaymentHashPaymentSendFailureZ_ok(o_ref);
+       return (uint64_t)ret_conv;
+}
+
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentHashPaymentSendFailureZ_1err(JNIEnv *env, jclass clz, int64_t e) {
+       LDKPaymentSendFailure e_conv = *(LDKPaymentSendFailure*)(((uint64_t)e) & ~1);
+       LDKCResult_PaymentHashPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentHashPaymentSendFailureZ), "LDKCResult_PaymentHashPaymentSendFailureZ");
+       *ret_conv = CResult_PaymentHashPaymentSendFailureZ_err(e_conv);
+       return (uint64_t)ret_conv;
+}
+
+JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentHashPaymentSendFailureZ_1free(JNIEnv *env, jclass clz, int64_t _res) {
+       if ((_res & 1) != 0) return;
+       LDKCResult_PaymentHashPaymentSendFailureZ _res_conv = *(LDKCResult_PaymentHashPaymentSendFailureZ*)(((uint64_t)_res) & ~1);
+       FREE((void*)_res);
+       CResult_PaymentHashPaymentSendFailureZ_free(_res_conv);
+}
+
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1PaymentHashPaymentSendFailureZ_1clone(JNIEnv *env, jclass clz, int64_t orig) {
+       LDKCResult_PaymentHashPaymentSendFailureZ* orig_conv = (LDKCResult_PaymentHashPaymentSendFailureZ*)(orig & ~1);
+       LDKCResult_PaymentHashPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentHashPaymentSendFailureZ), "LDKCResult_PaymentHashPaymentSendFailureZ");
+       *ret_conv = CResult_PaymentHashPaymentSendFailureZ_clone(orig_conv);
+       return (uint64_t)ret_conv;
+}
+
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_CVec_1NetAddressZ_1free(JNIEnv *env, jclass clz, int64_tArray _res) {
        LDKCVec_NetAddressZ _res_constr;
        _res_constr.datalen = (*env)->GetArrayLength(env, _res);
@@ -12872,6 +13453,21 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_CResult_1InvoiceSignOrCreat
        return (uint64_t)ret_conv;
 }
 
+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);
+       FREE((void*)this_ptr);
+       PaymentPurpose_free(this_ptr_conv);
+}
+
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PaymentPurpose_1clone(JNIEnv *env, jclass clz, int64_t orig) {
+       LDKPaymentPurpose* orig_conv = (LDKPaymentPurpose*)orig;
+       LDKPaymentPurpose *ret_copy = MALLOC(sizeof(LDKPaymentPurpose), "LDKPaymentPurpose");
+       *ret_copy = PaymentPurpose_clone(orig_conv);
+       uint64_t ret_ref = (uint64_t)ret_copy;
+       return ret_ref;
+}
+
 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);
@@ -12951,9 +13547,10 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_sign(JNIEnv *env, jclass cl
        LDKu8slice msg_ref;
        msg_ref.datalen = (*env)->GetArrayLength(env, msg);
        msg_ref.data = (*env)->GetByteArrayElements (env, msg, NULL);
-       LDKSecretKey sk_ref;
+       unsigned char sk_arr[32];
        CHECK((*env)->GetArrayLength(env, sk) == 32);
-       (*env)->GetByteArrayRegion(env, sk, 0, 32, sk_ref.bytes);
+       (*env)->GetByteArrayRegion(env, sk, 0, 32, sk_arr);
+       unsigned char (*sk_ref)[32] = &sk_arr;
        LDKCResult_StringErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_StringErrorZ), "LDKCResult_StringErrorZ");
        *ret_conv = sign(msg_ref, sk_ref);
        (*env)->ReleaseByteArrayElements(env, msg, (int8_t*)msg_ref.data, 0);
@@ -13273,19 +13870,34 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1free(JNIEnv *en
        ChannelConfig_free(this_obj_conv);
 }
 
-JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1get_1fee_1proportional_1millionths(JNIEnv *env, jclass clz, int64_t this_ptr) {
+JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1get_1forwarding_1fee_1proportional_1millionths(JNIEnv *env, jclass clz, int64_t this_ptr) {
+       LDKChannelConfig this_ptr_conv;
+       this_ptr_conv.inner = (void*)(this_ptr & (~1));
+       this_ptr_conv.is_owned = false;
+       int32_t ret_val = ChannelConfig_get_forwarding_fee_proportional_millionths(&this_ptr_conv);
+       return ret_val;
+}
+
+JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1set_1forwarding_1fee_1proportional_1millionths(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
+       LDKChannelConfig this_ptr_conv;
+       this_ptr_conv.inner = (void*)(this_ptr & (~1));
+       this_ptr_conv.is_owned = false;
+       ChannelConfig_set_forwarding_fee_proportional_millionths(&this_ptr_conv, val);
+}
+
+JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1get_1forwarding_1fee_1base_1msat(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelConfig this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       int32_t ret_val = ChannelConfig_get_fee_proportional_millionths(&this_ptr_conv);
+       int32_t ret_val = ChannelConfig_get_forwarding_fee_base_msat(&this_ptr_conv);
        return ret_val;
 }
 
-JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1set_1fee_1proportional_1millionths(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
+JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1set_1forwarding_1fee_1base_1msat(JNIEnv *env, jclass clz, int64_t this_ptr, int32_t val) {
        LDKChannelConfig this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       ChannelConfig_set_fee_proportional_millionths(&this_ptr_conv, val);
+       ChannelConfig_set_forwarding_fee_base_msat(&this_ptr_conv, val);
 }
 
 JNIEXPORT int16_t JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1get_1cltv_1expiry_1delta(JNIEnv *env, jclass clz, int64_t this_ptr) {
@@ -13333,8 +13945,8 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1set_1commit_1up
        ChannelConfig_set_commit_upfront_shutdown_pubkey(&this_ptr_conv, val);
 }
 
-JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1new(JNIEnv *env, jclass clz, int32_t fee_proportional_millionths_arg, int16_t cltv_expiry_delta_arg, jboolean announced_channel_arg, jboolean commit_upfront_shutdown_pubkey_arg) {
-       LDKChannelConfig ret_var = ChannelConfig_new(fee_proportional_millionths_arg, cltv_expiry_delta_arg, announced_channel_arg, commit_upfront_shutdown_pubkey_arg);
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelConfig_1new(JNIEnv *env, jclass clz, int32_t forwarding_fee_proportional_millionths_arg, int32_t forwarding_fee_base_msat_arg, int16_t cltv_expiry_delta_arg, jboolean announced_channel_arg, jboolean commit_upfront_shutdown_pubkey_arg) {
+       LDKChannelConfig ret_var = ChannelConfig_new(forwarding_fee_proportional_millionths_arg, forwarding_fee_base_msat_arg, cltv_expiry_delta_arg, announced_channel_arg, commit_upfront_shutdown_pubkey_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.
        uint64_t ret_ref = (uint64_t)ret_var.inner;
@@ -13472,7 +14084,22 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UserConfig_1set_1channel_1opti
        UserConfig_set_channel_options(&this_ptr_conv, val_conv);
 }
 
-JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UserConfig_1new(JNIEnv *env, jclass clz, int64_t own_channel_config_arg, int64_t peer_channel_config_limits_arg, int64_t channel_options_arg) {
+JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_UserConfig_1get_1accept_1forwards_1to_1priv_1channels(JNIEnv *env, jclass clz, int64_t this_ptr) {
+       LDKUserConfig this_ptr_conv;
+       this_ptr_conv.inner = (void*)(this_ptr & (~1));
+       this_ptr_conv.is_owned = false;
+       jboolean ret_val = UserConfig_get_accept_forwards_to_priv_channels(&this_ptr_conv);
+       return ret_val;
+}
+
+JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_UserConfig_1set_1accept_1forwards_1to_1priv_1channels(JNIEnv *env, jclass clz, int64_t this_ptr, jboolean val) {
+       LDKUserConfig this_ptr_conv;
+       this_ptr_conv.inner = (void*)(this_ptr & (~1));
+       this_ptr_conv.is_owned = false;
+       UserConfig_set_accept_forwards_to_priv_channels(&this_ptr_conv, val);
+}
+
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UserConfig_1new(JNIEnv *env, jclass clz, int64_t own_channel_config_arg, int64_t peer_channel_config_limits_arg, int64_t channel_options_arg, jboolean accept_forwards_to_priv_channels_arg) {
        LDKChannelHandshakeConfig own_channel_config_arg_conv;
        own_channel_config_arg_conv.inner = (void*)(own_channel_config_arg & (~1));
        own_channel_config_arg_conv.is_owned = (own_channel_config_arg & 1) || (own_channel_config_arg == 0);
@@ -13485,7 +14112,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UserConfig_1new(JNIEnv *env
        channel_options_arg_conv.inner = (void*)(channel_options_arg & (~1));
        channel_options_arg_conv.is_owned = (channel_options_arg & 1) || (channel_options_arg == 0);
        channel_options_arg_conv = ChannelConfig_clone(&channel_options_arg_conv);
-       LDKUserConfig ret_var = UserConfig_new(own_channel_config_arg_conv, peer_channel_config_limits_arg_conv, channel_options_arg_conv);
+       LDKUserConfig ret_var = UserConfig_new(own_channel_config_arg_conv, peer_channel_config_limits_arg_conv, channel_options_arg_conv, accept_forwards_to_priv_channels_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.
        uint64_t ret_ref = (uint64_t)ret_var.inner;
@@ -13520,9 +14147,73 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_UserConfig_1default(JNIEnv
        return ret_ref;
 }
 
-JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_AccessError_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKAccessError* orig_conv = (LDKAccessError*)(orig & ~1);
-       jclass ret_conv = LDKAccessError_to_java(env, AccessError_clone(orig_conv));
+JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_BestBlock_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
+       LDKBestBlock this_obj_conv;
+       this_obj_conv.inner = (void*)(this_obj & (~1));
+       this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
+       BestBlock_free(this_obj_conv);
+}
+
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BestBlock_1clone(JNIEnv *env, jclass clz, int64_t orig) {
+       LDKBestBlock orig_conv;
+       orig_conv.inner = (void*)(orig & (~1));
+       orig_conv.is_owned = false;
+       LDKBestBlock ret_var = BestBlock_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_BestBlock_1from_1genesis(JNIEnv *env, jclass clz, jclass network) {
+       LDKNetwork network_conv = LDKNetwork_from_java(env, network);
+       LDKBestBlock ret_var = BestBlock_from_genesis(network_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_BestBlock_1new(JNIEnv *env, jclass clz, int8_tArray block_hash, int32_t height) {
+       LDKThirtyTwoBytes block_hash_ref;
+       CHECK((*env)->GetArrayLength(env, block_hash) == 32);
+       (*env)->GetByteArrayRegion(env, block_hash, 0, 32, block_hash_ref.data);
+       LDKBestBlock ret_var = BestBlock_new(block_hash_ref, height);
+       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_BestBlock_1block_1hash(JNIEnv *env, jclass clz, int64_t this_arg) {
+       LDKBestBlock this_arg_conv;
+       this_arg_conv.inner = (void*)(this_arg & (~1));
+       this_arg_conv.is_owned = false;
+       int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
+       (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, BestBlock_block_hash(&this_arg_conv).data);
+       return ret_arr;
+}
+
+JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_BestBlock_1height(JNIEnv *env, jclass clz, int64_t this_arg) {
+       LDKBestBlock this_arg_conv;
+       this_arg_conv.inner = (void*)(this_arg & (~1));
+       this_arg_conv.is_owned = false;
+       int32_t ret_val = BestBlock_height(&this_arg_conv);
+       return ret_val;
+}
+
+JNIEXPORT jclass JNICALL Java_org_ldk_impl_bindings_AccessError_1clone(JNIEnv *env, jclass clz, int64_t orig) {
+       LDKAccessError* orig_conv = (LDKAccessError*)(orig & ~1);
+       jclass ret_conv = LDKAccessError_to_java(env, AccessError_clone(orig_conv));
        return ret_conv;
 }
 
@@ -13711,7 +14402,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChainMonitor_1new(JNIEnv *e
                chain_source_conv = *(LDKFilter*)(((uint64_t)chain_source) & ~1);
                if (chain_source_conv.free == LDKFilter_JCalls_free) {
                        // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
-                       LDKFilter_JCalls_clone(chain_source_conv.this_arg);
+                       LDKFilter_JCalls_cloned(&chain_source_conv);
                }
                chain_source_conv_ptr = MALLOC(sizeof(LDKFilter), "LDKFilter");
                *chain_source_conv_ptr = chain_source_conv;
@@ -13719,22 +14410,22 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChainMonitor_1new(JNIEnv *e
        LDKBroadcasterInterface broadcaster_conv = *(LDKBroadcasterInterface*)(((uint64_t)broadcaster) & ~1);
        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_clone(broadcaster_conv.this_arg);
+               LDKBroadcasterInterface_JCalls_cloned(&broadcaster_conv);
        }
        LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
        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_clone(logger_conv.this_arg);
+               LDKLogger_JCalls_cloned(&logger_conv);
        }
        LDKFeeEstimator feeest_conv = *(LDKFeeEstimator*)(((uint64_t)feeest) & ~1);
        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_clone(feeest_conv.this_arg);
+               LDKFeeEstimator_JCalls_cloned(&feeest_conv);
        }
        LDKPersist persister_conv = *(LDKPersist*)(((uint64_t)persister) & ~1);
        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_clone(persister_conv.this_arg);
+               LDKPersist_JCalls_cloned(&persister_conv);
        }
        LDKChainMonitor ret_var = ChainMonitor_new(chain_source_conv_ptr, broadcaster_conv, logger_conv, feeest_conv, persister_conv);
        CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
@@ -14092,17 +14783,17 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1block_
        LDKBroadcasterInterface broadcaster_conv = *(LDKBroadcasterInterface*)(((uint64_t)broadcaster) & ~1);
        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_clone(broadcaster_conv.this_arg);
+               LDKBroadcasterInterface_JCalls_cloned(&broadcaster_conv);
        }
        LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(((uint64_t)fee_estimator) & ~1);
        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_clone(fee_estimator_conv.this_arg);
+               LDKFeeEstimator_JCalls_cloned(&fee_estimator_conv);
        }
        LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
        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_clone(logger_conv.this_arg);
+               LDKLogger_JCalls_cloned(&logger_conv);
        }
        LDKCVec_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZZ ret_var = ChannelMonitor_block_connected(&this_arg_conv, header_ref, txdata_constr, height, broadcaster_conv, fee_estimator_conv, logger_conv);
        int64_tArray ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -14128,17 +14819,17 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1block_1disconn
        LDKBroadcasterInterface broadcaster_conv = *(LDKBroadcasterInterface*)(((uint64_t)broadcaster) & ~1);
        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_clone(broadcaster_conv.this_arg);
+               LDKBroadcasterInterface_JCalls_cloned(&broadcaster_conv);
        }
        LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(((uint64_t)fee_estimator) & ~1);
        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_clone(fee_estimator_conv.this_arg);
+               LDKFeeEstimator_JCalls_cloned(&fee_estimator_conv);
        }
        LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
        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_clone(logger_conv.this_arg);
+               LDKLogger_JCalls_cloned(&logger_conv);
        }
        ChannelMonitor_block_disconnected(&this_arg_conv, header_ref, height, broadcaster_conv, fee_estimator_conv, logger_conv);
 }
@@ -14168,17 +14859,17 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1transa
        LDKBroadcasterInterface broadcaster_conv = *(LDKBroadcasterInterface*)(((uint64_t)broadcaster) & ~1);
        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_clone(broadcaster_conv.this_arg);
+               LDKBroadcasterInterface_JCalls_cloned(&broadcaster_conv);
        }
        LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(((uint64_t)fee_estimator) & ~1);
        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_clone(fee_estimator_conv.this_arg);
+               LDKFeeEstimator_JCalls_cloned(&fee_estimator_conv);
        }
        LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
        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_clone(logger_conv.this_arg);
+               LDKLogger_JCalls_cloned(&logger_conv);
        }
        LDKCVec_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZZ ret_var = ChannelMonitor_transactions_confirmed(&this_arg_conv, header_ref, txdata_constr, height, broadcaster_conv, fee_estimator_conv, logger_conv);
        int64_tArray ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -14204,17 +14895,17 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1transaction_1u
        LDKBroadcasterInterface broadcaster_conv = *(LDKBroadcasterInterface*)(((uint64_t)broadcaster) & ~1);
        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_clone(broadcaster_conv.this_arg);
+               LDKBroadcasterInterface_JCalls_cloned(&broadcaster_conv);
        }
        LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(((uint64_t)fee_estimator) & ~1);
        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_clone(fee_estimator_conv.this_arg);
+               LDKFeeEstimator_JCalls_cloned(&fee_estimator_conv);
        }
        LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
        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_clone(logger_conv.this_arg);
+               LDKLogger_JCalls_cloned(&logger_conv);
        }
        ChannelMonitor_transaction_unconfirmed(&this_arg_conv, txid_ref, broadcaster_conv, fee_estimator_conv, logger_conv);
 }
@@ -14230,17 +14921,17 @@ JNIEXPORT int64_tArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1best_1
        LDKBroadcasterInterface broadcaster_conv = *(LDKBroadcasterInterface*)(((uint64_t)broadcaster) & ~1);
        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_clone(broadcaster_conv.this_arg);
+               LDKBroadcasterInterface_JCalls_cloned(&broadcaster_conv);
        }
        LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(((uint64_t)fee_estimator) & ~1);
        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_clone(fee_estimator_conv.this_arg);
+               LDKFeeEstimator_JCalls_cloned(&fee_estimator_conv);
        }
        LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
        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_clone(logger_conv.this_arg);
+               LDKLogger_JCalls_cloned(&logger_conv);
        }
        LDKCVec_C2Tuple_TxidCVec_C2Tuple_u32TxOutZZZZ ret_var = ChannelMonitor_best_block_updated(&this_arg_conv, header_ref, height, broadcaster_conv, fee_estimator_conv, logger_conv);
        int64_tArray ret_arr = (*env)->NewLongArray(env, ret_var.datalen);
@@ -14271,6 +14962,20 @@ JNIEXPORT jobjectArray JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1get_1r
        return ret_arr;
 }
 
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelMonitor_1current_1best_1block(JNIEnv *env, jclass clz, int64_t this_arg) {
+       LDKChannelMonitor this_arg_conv;
+       this_arg_conv.inner = (void*)(this_arg & (~1));
+       this_arg_conv.is_owned = false;
+       LDKBestBlock ret_var = ChannelMonitor_current_best_block(&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.
+       uint64_t ret_ref = (uint64_t)ret_var.inner;
+       if (ret_var.is_owned) {
+               ret_ref |= 1;
+       }
+       return ret_ref;
+}
+
 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);
@@ -15265,30 +15970,37 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChainParameters_1clone(JNIE
        return ret_ref;
 }
 
-JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_BestBlock_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
-       LDKBestBlock this_obj_conv;
+JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
+       LDKChannelCounterparty this_obj_conv;
        this_obj_conv.inner = (void*)(this_obj & (~1));
        this_obj_conv.is_owned = (this_obj & 1) || (this_obj == 0);
-       BestBlock_free(this_obj_conv);
+       ChannelCounterparty_free(this_obj_conv);
 }
 
-JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BestBlock_1clone(JNIEnv *env, jclass clz, int64_t orig) {
-       LDKBestBlock orig_conv;
-       orig_conv.inner = (void*)(orig & (~1));
-       orig_conv.is_owned = false;
-       LDKBestBlock ret_var = BestBlock_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_ChannelCounterparty_1get_1node_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
+       LDKChannelCounterparty this_ptr_conv;
+       this_ptr_conv.inner = (void*)(this_ptr & (~1));
+       this_ptr_conv.is_owned = false;
+       int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
+       (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, ChannelCounterparty_get_node_id(&this_ptr_conv).compressed_form);
+       return ret_arr;
 }
 
-JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BestBlock_1from_1genesis(JNIEnv *env, jclass clz, jclass network) {
-       LDKNetwork network_conv = LDKNetwork_from_java(env, network);
-       LDKBestBlock ret_var = BestBlock_from_genesis(network_conv);
+JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1set_1node_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
+       LDKChannelCounterparty this_ptr_conv;
+       this_ptr_conv.inner = (void*)(this_ptr & (~1));
+       this_ptr_conv.is_owned = false;
+       LDKPublicKey val_ref;
+       CHECK((*env)->GetArrayLength(env, val) == 33);
+       (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
+       ChannelCounterparty_set_node_id(&this_ptr_conv, val_ref);
+}
+
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1get_1features(JNIEnv *env, jclass clz, int64_t this_ptr) {
+       LDKChannelCounterparty this_ptr_conv;
+       this_ptr_conv.inner = (void*)(this_ptr & (~1));
+       this_ptr_conv.is_owned = false;
+       LDKInitFeatures ret_var = ChannelCounterparty_get_features(&this_ptr_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;
@@ -15298,11 +16010,37 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BestBlock_1from_1genesis(JN
        return ret_ref;
 }
 
-JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BestBlock_1new(JNIEnv *env, jclass clz, int8_tArray block_hash, int32_t height) {
-       LDKThirtyTwoBytes block_hash_ref;
-       CHECK((*env)->GetArrayLength(env, block_hash) == 32);
-       (*env)->GetByteArrayRegion(env, block_hash, 0, 32, block_hash_ref.data);
-       LDKBestBlock ret_var = BestBlock_new(block_hash_ref, height);
+JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1set_1features(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
+       LDKChannelCounterparty this_ptr_conv;
+       this_ptr_conv.inner = (void*)(this_ptr & (~1));
+       this_ptr_conv.is_owned = false;
+       LDKInitFeatures val_conv;
+       val_conv.inner = (void*)(val & (~1));
+       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv = InitFeatures_clone(&val_conv);
+       ChannelCounterparty_set_features(&this_ptr_conv, val_conv);
+}
+
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1get_1unspendable_1punishment_1reserve(JNIEnv *env, jclass clz, int64_t this_ptr) {
+       LDKChannelCounterparty this_ptr_conv;
+       this_ptr_conv.inner = (void*)(this_ptr & (~1));
+       this_ptr_conv.is_owned = false;
+       int64_t ret_val = ChannelCounterparty_get_unspendable_punishment_reserve(&this_ptr_conv);
+       return ret_val;
+}
+
+JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1set_1unspendable_1punishment_1reserve(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
+       LDKChannelCounterparty this_ptr_conv;
+       this_ptr_conv.inner = (void*)(this_ptr & (~1));
+       this_ptr_conv.is_owned = false;
+       ChannelCounterparty_set_unspendable_punishment_reserve(&this_ptr_conv, val);
+}
+
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelCounterparty_1clone(JNIEnv *env, jclass clz, int64_t orig) {
+       LDKChannelCounterparty orig_conv;
+       orig_conv.inner = (void*)(orig & (~1));
+       orig_conv.is_owned = false;
+       LDKChannelCounterparty ret_var = ChannelCounterparty_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;
@@ -15312,23 +16050,6 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BestBlock_1new(JNIEnv *env,
        return ret_ref;
 }
 
-JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_BestBlock_1block_1hash(JNIEnv *env, jclass clz, int64_t this_arg) {
-       LDKBestBlock this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
-       int8_tArray ret_arr = (*env)->NewByteArray(env, 32);
-       (*env)->SetByteArrayRegion(env, ret_arr, 0, 32, BestBlock_block_hash(&this_arg_conv).data);
-       return ret_arr;
-}
-
-JNIEXPORT int32_t JNICALL Java_org_ldk_impl_bindings_BestBlock_1height(JNIEnv *env, jclass clz, int64_t this_arg) {
-       LDKBestBlock this_arg_conv;
-       this_arg_conv.inner = (void*)(this_arg & (~1));
-       this_arg_conv.is_owned = false;
-       int32_t ret_val = BestBlock_height(&this_arg_conv);
-       return ret_val;
-}
-
 JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1free(JNIEnv *env, jclass clz, int64_t this_obj) {
        LDKChannelDetails this_obj_conv;
        this_obj_conv.inner = (void*)(this_obj & (~1));
@@ -15355,6 +16076,31 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1channel_1
        ChannelDetails_set_channel_id(&this_ptr_conv, val_ref);
 }
 
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1counterparty(JNIEnv *env, jclass clz, int64_t this_ptr) {
+       LDKChannelDetails this_ptr_conv;
+       this_ptr_conv.inner = (void*)(this_ptr & (~1));
+       this_ptr_conv.is_owned = false;
+       LDKChannelCounterparty ret_var = ChannelDetails_get_counterparty(&this_ptr_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 void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1counterparty(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
+       LDKChannelDetails this_ptr_conv;
+       this_ptr_conv.inner = (void*)(this_ptr & (~1));
+       this_ptr_conv.is_owned = false;
+       LDKChannelCounterparty val_conv;
+       val_conv.inner = (void*)(val & (~1));
+       val_conv.is_owned = (val & 1) || (val == 0);
+       val_conv = ChannelCounterparty_clone(&val_conv);
+       ChannelDetails_set_counterparty(&this_ptr_conv, val_conv);
+}
+
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1funding_1txo(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
@@ -15398,63 +16144,37 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1short_1ch
        ChannelDetails_set_short_channel_id(&this_ptr_conv, val_conv);
 }
 
-JNIEXPORT int8_tArray JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1remote_1network_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1channel_1value_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       int8_tArray ret_arr = (*env)->NewByteArray(env, 33);
-       (*env)->SetByteArrayRegion(env, ret_arr, 0, 33, ChannelDetails_get_remote_network_id(&this_ptr_conv).compressed_form);
-       return ret_arr;
+       int64_t ret_val = ChannelDetails_get_channel_value_satoshis(&this_ptr_conv);
+       return ret_val;
 }
 
-JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1remote_1network_1id(JNIEnv *env, jclass clz, int64_t this_ptr, int8_tArray val) {
+JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1channel_1value_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelDetails this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       LDKPublicKey val_ref;
-       CHECK((*env)->GetArrayLength(env, val) == 33);
-       (*env)->GetByteArrayRegion(env, val, 0, 33, val_ref.compressed_form);
-       ChannelDetails_set_remote_network_id(&this_ptr_conv, val_ref);
+       ChannelDetails_set_channel_value_satoshis(&this_ptr_conv, val);
 }
 
-JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1counterparty_1features(JNIEnv *env, jclass clz, int64_t this_ptr) {
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1unspendable_1punishment_1reserve(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       LDKInitFeatures ret_var = ChannelDetails_get_counterparty_features(&this_ptr_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;
-       }
+       LDKCOption_u64Z *ret_copy = MALLOC(sizeof(LDKCOption_u64Z), "LDKCOption_u64Z");
+       *ret_copy = ChannelDetails_get_unspendable_punishment_reserve(&this_ptr_conv);
+       uint64_t ret_ref = (uint64_t)ret_copy;
        return ret_ref;
 }
 
-JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1counterparty_1features(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
-       LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
-       LDKInitFeatures val_conv;
-       val_conv.inner = (void*)(val & (~1));
-       val_conv.is_owned = (val & 1) || (val == 0);
-       val_conv = InitFeatures_clone(&val_conv);
-       ChannelDetails_set_counterparty_features(&this_ptr_conv, val_conv);
-}
-
-JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1channel_1value_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr) {
-       LDKChannelDetails this_ptr_conv;
-       this_ptr_conv.inner = (void*)(this_ptr & (~1));
-       this_ptr_conv.is_owned = false;
-       int64_t ret_val = ChannelDetails_get_channel_value_satoshis(&this_ptr_conv);
-       return ret_val;
-}
-
-JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1channel_1value_1satoshis(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
+JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1unspendable_1punishment_1reserve(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
        LDKChannelDetails this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
        this_ptr_conv.is_owned = false;
-       ChannelDetails_set_channel_value_satoshis(&this_ptr_conv, val);
+       LDKCOption_u64Z val_conv = *(LDKCOption_u64Z*)(((uint64_t)val) & ~1);
+       ChannelDetails_set_unspendable_punishment_reserve(&this_ptr_conv, val_conv);
 }
 
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1user_1id(JNIEnv *env, jclass clz, int64_t this_ptr) {
@@ -15502,6 +16222,42 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1inbound_1
        ChannelDetails_set_inbound_capacity_msat(&this_ptr_conv, val);
 }
 
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1confirmations_1required(JNIEnv *env, jclass clz, int64_t this_ptr) {
+       LDKChannelDetails this_ptr_conv;
+       this_ptr_conv.inner = (void*)(this_ptr & (~1));
+       this_ptr_conv.is_owned = false;
+       LDKCOption_u32Z *ret_copy = MALLOC(sizeof(LDKCOption_u32Z), "LDKCOption_u32Z");
+       *ret_copy = ChannelDetails_get_confirmations_required(&this_ptr_conv);
+       uint64_t ret_ref = (uint64_t)ret_copy;
+       return ret_ref;
+}
+
+JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1confirmations_1required(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
+       LDKChannelDetails this_ptr_conv;
+       this_ptr_conv.inner = (void*)(this_ptr & (~1));
+       this_ptr_conv.is_owned = false;
+       LDKCOption_u32Z val_conv = *(LDKCOption_u32Z*)(((uint64_t)val) & ~1);
+       ChannelDetails_set_confirmations_required(&this_ptr_conv, val_conv);
+}
+
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1force_1close_1spend_1delay(JNIEnv *env, jclass clz, int64_t this_ptr) {
+       LDKChannelDetails this_ptr_conv;
+       this_ptr_conv.inner = (void*)(this_ptr & (~1));
+       this_ptr_conv.is_owned = false;
+       LDKCOption_u16Z *ret_copy = MALLOC(sizeof(LDKCOption_u16Z), "LDKCOption_u16Z");
+       *ret_copy = ChannelDetails_get_force_close_spend_delay(&this_ptr_conv);
+       uint64_t ret_ref = (uint64_t)ret_copy;
+       return ret_ref;
+}
+
+JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1force_1close_1spend_1delay(JNIEnv *env, jclass clz, int64_t this_ptr, int64_t val) {
+       LDKChannelDetails this_ptr_conv;
+       this_ptr_conv.inner = (void*)(this_ptr & (~1));
+       this_ptr_conv.is_owned = false;
+       LDKCOption_u16Z val_conv = *(LDKCOption_u16Z*)(((uint64_t)val) & ~1);
+       ChannelDetails_set_force_close_spend_delay(&this_ptr_conv, val_conv);
+}
+
 JNIEXPORT jboolean JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1get_1is_1outbound(JNIEnv *env, jclass clz, int64_t this_ptr) {
        LDKChannelDetails this_ptr_conv;
        this_ptr_conv.inner = (void*)(this_ptr & (~1));
@@ -15562,6 +16318,32 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1set_1is_1publi
        ChannelDetails_set_is_public(&this_ptr_conv, val);
 }
 
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelDetails_1new(JNIEnv *env, jclass clz, int8_tArray channel_id_arg, int64_t counterparty_arg, int64_t funding_txo_arg, int64_t short_channel_id_arg, int64_t channel_value_satoshis_arg, int64_t unspendable_punishment_reserve_arg, int64_t user_id_arg, int64_t outbound_capacity_msat_arg, int64_t inbound_capacity_msat_arg, int64_t confirmations_required_arg, int64_t force_close_spend_delay_arg, jboolean is_outbound_arg, jboolean is_funding_locked_arg, jboolean is_usable_arg, jboolean is_public_arg) {
+       LDKThirtyTwoBytes channel_id_arg_ref;
+       CHECK((*env)->GetArrayLength(env, channel_id_arg) == 32);
+       (*env)->GetByteArrayRegion(env, channel_id_arg, 0, 32, channel_id_arg_ref.data);
+       LDKChannelCounterparty counterparty_arg_conv;
+       counterparty_arg_conv.inner = (void*)(counterparty_arg & (~1));
+       counterparty_arg_conv.is_owned = (counterparty_arg & 1) || (counterparty_arg == 0);
+       counterparty_arg_conv = ChannelCounterparty_clone(&counterparty_arg_conv);
+       LDKOutPoint funding_txo_arg_conv;
+       funding_txo_arg_conv.inner = (void*)(funding_txo_arg & (~1));
+       funding_txo_arg_conv.is_owned = (funding_txo_arg & 1) || (funding_txo_arg == 0);
+       funding_txo_arg_conv = OutPoint_clone(&funding_txo_arg_conv);
+       LDKCOption_u64Z short_channel_id_arg_conv = *(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);
+       LDKCOption_u16Z force_close_spend_delay_arg_conv = *(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_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.
+       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_ChannelDetails_1clone(JNIEnv *env, jclass clz, int64_t orig) {
        LDKChannelDetails orig_conv;
        orig_conv.inner = (void*)(orig & (~1));
@@ -15595,27 +16377,27 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1new(JNIEnv
        LDKFeeEstimator fee_est_conv = *(LDKFeeEstimator*)(((uint64_t)fee_est) & ~1);
        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_clone(fee_est_conv.this_arg);
+               LDKFeeEstimator_JCalls_cloned(&fee_est_conv);
        }
        LDKWatch chain_monitor_conv = *(LDKWatch*)(((uint64_t)chain_monitor) & ~1);
        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_clone(chain_monitor_conv.this_arg);
+               LDKWatch_JCalls_cloned(&chain_monitor_conv);
        }
        LDKBroadcasterInterface tx_broadcaster_conv = *(LDKBroadcasterInterface*)(((uint64_t)tx_broadcaster) & ~1);
        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_clone(tx_broadcaster_conv.this_arg);
+               LDKBroadcasterInterface_JCalls_cloned(&tx_broadcaster_conv);
        }
        LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
        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_clone(logger_conv.this_arg);
+               LDKLogger_JCalls_cloned(&logger_conv);
        }
        LDKKeysInterface keys_manager_conv = *(LDKKeysInterface*)(((uint64_t)keys_manager) & ~1);
        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_clone(keys_manager_conv.this_arg);
+               LDKKeysInterface_JCalls_cloned(&keys_manager_conv);
        }
        LDKUserConfig config_conv;
        config_conv.inner = (void*)(config & (~1));
@@ -15760,6 +16542,21 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1send_1payme
        return (uint64_t)ret_conv;
 }
 
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1send_1spontaneous_1payment(JNIEnv *env, jclass clz, int64_t this_arg, int64_t route, int8_tArray payment_preimage) {
+       LDKChannelManager this_arg_conv;
+       this_arg_conv.inner = (void*)(this_arg & (~1));
+       this_arg_conv.is_owned = false;
+       LDKRoute route_conv;
+       route_conv.inner = (void*)(route & (~1));
+       route_conv.is_owned = false;
+       LDKThirtyTwoBytes payment_preimage_ref;
+       CHECK((*env)->GetArrayLength(env, payment_preimage) == 32);
+       (*env)->GetByteArrayRegion(env, payment_preimage, 0, 32, payment_preimage_ref.data);
+       LDKCResult_PaymentHashPaymentSendFailureZ* ret_conv = MALLOC(sizeof(LDKCResult_PaymentHashPaymentSendFailureZ), "LDKCResult_PaymentHashPaymentSendFailureZ");
+       *ret_conv = ChannelManager_send_spontaneous_payment(&this_arg_conv, &route_conv, payment_preimage_ref);
+       return (uint64_t)ret_conv;
+}
+
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1funding_1transaction_1generated(JNIEnv *env, jclass clz, int64_t this_arg, int8_tArray temporary_channel_id, int8_tArray funding_transaction) {
        LDKChannelManager this_arg_conv;
        this_arg_conv.inner = (void*)(this_arg & (~1));
@@ -15934,6 +16731,20 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManager_1await_1persist
        ChannelManager_await_persistable_update(&this_arg_conv);
 }
 
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManager_1current_1best_1block(JNIEnv *env, jclass clz, int64_t this_arg) {
+       LDKChannelManager this_arg_conv;
+       this_arg_conv.inner = (void*)(this_arg & (~1));
+       this_arg_conv.is_owned = false;
+       LDKBestBlock ret_var = ChannelManager_current_best_block(&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.
+       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_ChannelManager_1as_1ChannelMessageHandler(JNIEnv *env, jclass clz, int64_t this_arg) {
        LDKChannelManager this_arg_conv;
        this_arg_conv.inner = (void*)(this_arg & (~1));
@@ -15976,7 +16787,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1set_1k
        LDKKeysInterface val_conv = *(LDKKeysInterface*)(((uint64_t)val) & ~1);
        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_clone(val_conv.this_arg);
+               LDKKeysInterface_JCalls_cloned(&val_conv);
        }
        ChannelManagerReadArgs_set_keys_manager(&this_ptr_conv, val_conv);
 }
@@ -15996,7 +16807,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1set_1f
        LDKFeeEstimator val_conv = *(LDKFeeEstimator*)(((uint64_t)val) & ~1);
        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_clone(val_conv.this_arg);
+               LDKFeeEstimator_JCalls_cloned(&val_conv);
        }
        ChannelManagerReadArgs_set_fee_estimator(&this_ptr_conv, val_conv);
 }
@@ -16016,7 +16827,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1set_1c
        LDKWatch val_conv = *(LDKWatch*)(((uint64_t)val) & ~1);
        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_clone(val_conv.this_arg);
+               LDKWatch_JCalls_cloned(&val_conv);
        }
        ChannelManagerReadArgs_set_chain_monitor(&this_ptr_conv, val_conv);
 }
@@ -16036,7 +16847,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1set_1t
        LDKBroadcasterInterface val_conv = *(LDKBroadcasterInterface*)(((uint64_t)val) & ~1);
        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_clone(val_conv.this_arg);
+               LDKBroadcasterInterface_JCalls_cloned(&val_conv);
        }
        ChannelManagerReadArgs_set_tx_broadcaster(&this_ptr_conv, val_conv);
 }
@@ -16056,7 +16867,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1set_1l
        LDKLogger val_conv = *(LDKLogger*)(((uint64_t)val) & ~1);
        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_clone(val_conv.this_arg);
+               LDKLogger_JCalls_cloned(&val_conv);
        }
        ChannelManagerReadArgs_set_logger(&this_ptr_conv, val_conv);
 }
@@ -16090,27 +16901,27 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_ChannelManagerReadArgs_1new
        LDKKeysInterface keys_manager_conv = *(LDKKeysInterface*)(((uint64_t)keys_manager) & ~1);
        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_clone(keys_manager_conv.this_arg);
+               LDKKeysInterface_JCalls_cloned(&keys_manager_conv);
        }
        LDKFeeEstimator fee_estimator_conv = *(LDKFeeEstimator*)(((uint64_t)fee_estimator) & ~1);
        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_clone(fee_estimator_conv.this_arg);
+               LDKFeeEstimator_JCalls_cloned(&fee_estimator_conv);
        }
        LDKWatch chain_monitor_conv = *(LDKWatch*)(((uint64_t)chain_monitor) & ~1);
        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_clone(chain_monitor_conv.this_arg);
+               LDKWatch_JCalls_cloned(&chain_monitor_conv);
        }
        LDKBroadcasterInterface tx_broadcaster_conv = *(LDKBroadcasterInterface*)(((uint64_t)tx_broadcaster) & ~1);
        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_clone(tx_broadcaster_conv.this_arg);
+               LDKBroadcasterInterface_JCalls_cloned(&tx_broadcaster_conv);
        }
        LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
        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_clone(logger_conv.this_arg);
+               LDKLogger_JCalls_cloned(&logger_conv);
        }
        LDKUserConfig default_config_conv;
        default_config_conv.inner = (void*)(default_config & (~1));
@@ -16269,6 +17080,7 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_ErrorMessage_1get_1data(JNI
        this_ptr_conv.is_owned = false;
        LDKStr ret_str = ErrorMessage_get_data(&this_ptr_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
+       Str_free(ret_str);
        return ret_conv;
 }
 
@@ -19569,6 +20381,7 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_LightningError_1get_1err(JN
        this_ptr_conv.is_owned = false;
        LDKStr ret_str = LightningError_get_err(&this_ptr_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
+       Str_free(ret_str);
        return ret_conv;
 }
 
@@ -20653,7 +21466,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_MessageHandler_1set_1chan_1han
        LDKChannelMessageHandler val_conv = *(LDKChannelMessageHandler*)(((uint64_t)val) & ~1);
        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_clone(val_conv.this_arg);
+               LDKChannelMessageHandler_JCalls_cloned(&val_conv);
        }
        MessageHandler_set_chan_handler(&this_ptr_conv, val_conv);
 }
@@ -20673,7 +21486,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_MessageHandler_1set_1route_1ha
        LDKRoutingMessageHandler val_conv = *(LDKRoutingMessageHandler*)(((uint64_t)val) & ~1);
        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_clone(val_conv.this_arg);
+               LDKRoutingMessageHandler_JCalls_cloned(&val_conv);
        }
        MessageHandler_set_route_handler(&this_ptr_conv, val_conv);
 }
@@ -20682,12 +21495,12 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_MessageHandler_1new(JNIEnv
        LDKChannelMessageHandler chan_handler_arg_conv = *(LDKChannelMessageHandler*)(((uint64_t)chan_handler_arg) & ~1);
        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_clone(chan_handler_arg_conv.this_arg);
+               LDKChannelMessageHandler_JCalls_cloned(&chan_handler_arg_conv);
        }
        LDKRoutingMessageHandler route_handler_arg_conv = *(LDKRoutingMessageHandler*)(((uint64_t)route_handler_arg) & ~1);
        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_clone(route_handler_arg_conv.this_arg);
+               LDKRoutingMessageHandler_JCalls_cloned(&route_handler_arg_conv);
        }
        LDKMessageHandler ret_var = MessageHandler_new(chan_handler_arg_conv, route_handler_arg_conv);
        CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
@@ -20782,7 +21595,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PeerManager_1new(JNIEnv *en
        LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
        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_clone(logger_conv.this_arg);
+               LDKLogger_JCalls_cloned(&logger_conv);
        }
        LDKPeerManager ret_var = PeerManager_new(message_handler_conv, our_node_secret_ref, ephemeral_random_data_ref, logger_conv);
        CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
@@ -20820,7 +21633,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PeerManager_1new_1outbound_
        LDKSocketDescriptor descriptor_conv = *(LDKSocketDescriptor*)(((uint64_t)descriptor) & ~1);
        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_clone(descriptor_conv.this_arg);
+               LDKSocketDescriptor_JCalls_cloned(&descriptor_conv);
        }
        LDKCResult_CVec_u8ZPeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_u8ZPeerHandleErrorZ), "LDKCResult_CVec_u8ZPeerHandleErrorZ");
        *ret_conv = PeerManager_new_outbound_connection(&this_arg_conv, their_node_id_ref, descriptor_conv);
@@ -20834,7 +21647,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_PeerManager_1new_1inbound_1
        LDKSocketDescriptor descriptor_conv = *(LDKSocketDescriptor*)(((uint64_t)descriptor) & ~1);
        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_clone(descriptor_conv.this_arg);
+               LDKSocketDescriptor_JCalls_cloned(&descriptor_conv);
        }
        LDKCResult_NonePeerHandleErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_NonePeerHandleErrorZ), "LDKCResult_NonePeerHandleErrorZ");
        *ret_conv = PeerManager_new_inbound_connection(&this_arg_conv, descriptor_conv);
@@ -23126,6 +23939,58 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_RouteHintHop_1clone(JNIEnv
        return ret_ref;
 }
 
+JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_get_1keysend_1route(JNIEnv *env, jclass clz, int8_tArray our_node_id, int64_t network, int8_tArray payee, int64_tArray first_hops, int64_tArray last_hops, int64_t final_value_msat, int32_t final_cltv, int64_t logger) {
+       LDKPublicKey our_node_id_ref;
+       CHECK((*env)->GetArrayLength(env, our_node_id) == 33);
+       (*env)->GetByteArrayRegion(env, our_node_id, 0, 33, our_node_id_ref.compressed_form);
+       LDKNetworkGraph network_conv;
+       network_conv.inner = (void*)(network & (~1));
+       network_conv.is_owned = false;
+       LDKPublicKey payee_ref;
+       CHECK((*env)->GetArrayLength(env, payee) == 33);
+       (*env)->GetByteArrayRegion(env, payee, 0, 33, payee_ref.compressed_form);
+       LDKCVec_ChannelDetailsZ first_hops_constr;
+       first_hops_constr.datalen = (*env)->GetArrayLength(env, first_hops);
+       if (first_hops_constr.datalen > 0)
+               first_hops_constr.data = MALLOC(first_hops_constr.datalen * sizeof(LDKChannelDetails), "LDKCVec_ChannelDetailsZ Elements");
+       else
+               first_hops_constr.data = NULL;
+       int64_t* first_hops_vals = (*env)->GetLongArrayElements (env, first_hops, NULL);
+       for (size_t q = 0; q < first_hops_constr.datalen; q++) {
+               int64_t first_hops_conv_16 = first_hops_vals[q];
+               LDKChannelDetails first_hops_conv_16_conv;
+               first_hops_conv_16_conv.inner = (void*)(first_hops_conv_16 & (~1));
+               first_hops_conv_16_conv.is_owned = (first_hops_conv_16 & 1) || (first_hops_conv_16 == 0);
+               first_hops_constr.data[q] = first_hops_conv_16_conv;
+       }
+       (*env)->ReleaseLongArrayElements(env, first_hops, first_hops_vals, 0);
+       LDKCVec_RouteHintZ last_hops_constr;
+       last_hops_constr.datalen = (*env)->GetArrayLength(env, last_hops);
+       if (last_hops_constr.datalen > 0)
+               last_hops_constr.data = MALLOC(last_hops_constr.datalen * sizeof(LDKRouteHint), "LDKCVec_RouteHintZ Elements");
+       else
+               last_hops_constr.data = NULL;
+       int64_t* last_hops_vals = (*env)->GetLongArrayElements (env, last_hops, NULL);
+       for (size_t l = 0; l < last_hops_constr.datalen; l++) {
+               int64_t last_hops_conv_11 = last_hops_vals[l];
+               LDKRouteHint last_hops_conv_11_conv;
+               last_hops_conv_11_conv.inner = (void*)(last_hops_conv_11 & (~1));
+               last_hops_conv_11_conv.is_owned = (last_hops_conv_11 & 1) || (last_hops_conv_11 == 0);
+               last_hops_conv_11_conv = RouteHint_clone(&last_hops_conv_11_conv);
+               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);
+       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);
+       }
+       LDKCResult_RouteLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteLightningErrorZ), "LDKCResult_RouteLightningErrorZ");
+       *ret_conv = get_keysend_route(our_node_id_ref, &network_conv, payee_ref, &first_hops_constr, last_hops_constr, final_value_msat, final_cltv, logger_conv);
+       FREE(first_hops_constr.data);
+       return (uint64_t)ret_conv;
+}
+
 JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_get_1route(JNIEnv *env, jclass clz, int8_tArray our_node_id, int64_t network, int8_tArray payee, int64_t payee_features, int64_tArray first_hops, int64_tArray last_hops, int64_t final_value_msat, int32_t final_cltv, int64_t logger) {
        LDKPublicKey our_node_id_ref;
        CHECK((*env)->GetArrayLength(env, our_node_id) == 33);
@@ -23174,7 +24039,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_get_1route(JNIEnv *env, jcl
        LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
        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_clone(logger_conv.this_arg);
+               LDKLogger_JCalls_cloned(&logger_conv);
        }
        LDKCResult_RouteLightningErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_RouteLightningErrorZ), "LDKCResult_RouteLightningErrorZ");
        *ret_conv = get_route(our_node_id_ref, &network_conv, payee_ref, payee_features_conv, &first_hops_constr, last_hops_constr, final_value_msat, final_cltv, logger_conv);
@@ -23227,7 +24092,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetGraphMsgHandler_1new(JNI
                chain_access_conv = *(LDKAccess*)(((uint64_t)chain_access) & ~1);
                if (chain_access_conv.free == LDKAccess_JCalls_free) {
                        // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
-                       LDKAccess_JCalls_clone(chain_access_conv.this_arg);
+                       LDKAccess_JCalls_cloned(&chain_access_conv);
                }
                chain_access_conv_ptr = MALLOC(sizeof(LDKAccess), "LDKAccess");
                *chain_access_conv_ptr = chain_access_conv;
@@ -23235,7 +24100,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetGraphMsgHandler_1new(JNI
        LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
        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_clone(logger_conv.this_arg);
+               LDKLogger_JCalls_cloned(&logger_conv);
        }
        LDKNetGraphMsgHandler ret_var = NetGraphMsgHandler_new(genesis_hash_ref, chain_access_conv_ptr, logger_conv);
        CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
@@ -23254,7 +24119,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetGraphMsgHandler_1from_1n
                chain_access_conv = *(LDKAccess*)(((uint64_t)chain_access) & ~1);
                if (chain_access_conv.free == LDKAccess_JCalls_free) {
                        // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
-                       LDKAccess_JCalls_clone(chain_access_conv.this_arg);
+                       LDKAccess_JCalls_cloned(&chain_access_conv);
                }
                chain_access_conv_ptr = MALLOC(sizeof(LDKAccess), "LDKAccess");
                *chain_access_conv_ptr = chain_access_conv;
@@ -23262,7 +24127,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetGraphMsgHandler_1from_1n
        LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
        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_clone(logger_conv.this_arg);
+               LDKLogger_JCalls_cloned(&logger_conv);
        }
        LDKNetworkGraph network_graph_conv;
        network_graph_conv.inner = (void*)(network_graph & (~1));
@@ -23288,7 +24153,7 @@ JNIEXPORT void JNICALL Java_org_ldk_impl_bindings_NetGraphMsgHandler_1add_1chain
                chain_access_conv = *(LDKAccess*)(((uint64_t)chain_access) & ~1);
                if (chain_access_conv.free == LDKAccess_JCalls_free) {
                        // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
-                       LDKAccess_JCalls_clone(chain_access_conv.this_arg);
+                       LDKAccess_JCalls_cloned(&chain_access_conv);
                }
                chain_access_conv_ptr = MALLOC(sizeof(LDKAccess), "LDKAccess");
                *chain_access_conv_ptr = chain_access_conv;
@@ -24276,7 +25141,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1update_1chann
                chain_access_conv = *(LDKAccess*)(((uint64_t)chain_access) & ~1);
                if (chain_access_conv.free == LDKAccess_JCalls_free) {
                        // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
-                       LDKAccess_JCalls_clone(chain_access_conv.this_arg);
+                       LDKAccess_JCalls_cloned(&chain_access_conv);
                }
                chain_access_conv_ptr = MALLOC(sizeof(LDKAccess), "LDKAccess");
                *chain_access_conv_ptr = chain_access_conv;
@@ -24299,7 +25164,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_NetworkGraph_1update_1chann
                chain_access_conv = *(LDKAccess*)(((uint64_t)chain_access) & ~1);
                if (chain_access_conv.free == LDKAccess_JCalls_free) {
                        // If this_arg is a JCalls struct, then we need to increment the refcnt in it.
-                       LDKAccess_JCalls_clone(chain_access_conv.this_arg);
+                       LDKAccess_JCalls_cloned(&chain_access_conv);
                }
                chain_access_conv_ptr = MALLOC(sizeof(LDKAccess), "LDKAccess");
                *chain_access_conv_ptr = chain_access_conv;
@@ -24365,6 +25230,7 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_FilesystemPersister_1get_1d
        this_arg_conv.is_owned = false;
        LDKStr ret_str = FilesystemPersister_get_data_dir(&this_arg_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
+       Str_free(ret_str);
        return ret_conv;
 }
 
@@ -24385,7 +25251,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_FilesystemPersister_1read_1
        LDKKeysInterface keys_manager_conv = *(LDKKeysInterface*)(((uint64_t)keys_manager) & ~1);
        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_clone(keys_manager_conv.this_arg);
+               LDKKeysInterface_JCalls_cloned(&keys_manager_conv);
        }
        LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ* ret_conv = MALLOC(sizeof(LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ), "LDKCResult_CVec_C2Tuple_BlockHashChannelMonitorZZErrorZ");
        *ret_conv = FilesystemPersister_read_channelmonitors(&this_arg_conv, keys_manager_conv);
@@ -24419,12 +25285,12 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BackgroundProcessor_1start(
        LDKChannelManagerPersister persister_conv = *(LDKChannelManagerPersister*)(((uint64_t)persister) & ~1);
        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_clone(persister_conv.this_arg);
+               LDKChannelManagerPersister_JCalls_cloned(&persister_conv);
        }
        LDKEventHandler event_handler_conv = *(LDKEventHandler*)(((uint64_t)event_handler) & ~1);
        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_clone(event_handler_conv.this_arg);
+               LDKEventHandler_JCalls_cloned(&event_handler_conv);
        }
        LDKChainMonitor chain_monitor_conv;
        chain_monitor_conv.inner = (void*)(chain_monitor & (~1));
@@ -24438,7 +25304,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_BackgroundProcessor_1start(
        LDKLogger logger_conv = *(LDKLogger*)(((uint64_t)logger) & ~1);
        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_clone(logger_conv.this_arg);
+               LDKLogger_JCalls_cloned(&logger_conv);
        }
        LDKBackgroundProcessor ret_var = BackgroundProcessor_start(persister_conv, event_handler_conv, &chain_monitor_conv, &channel_manager_conv, &peer_manager_conv, logger_conv);
        CHECK((((uint64_t)ret_var.inner) & 1) == 0); // We rely on a free low bit, malloc guarantees this.
@@ -25384,6 +26250,7 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_Description_1into_1inner(JN
        this_arg_conv = Description_clone(&this_arg_conv);
        LDKStr ret_str = Description_into_inner(this_arg_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
+       Str_free(ret_str);
        return ret_conv;
 }
 
@@ -25457,6 +26324,7 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_CreationError_1to_1str(JNIE
        LDKCreationError* o_conv = (LDKCreationError*)(o & ~1);
        LDKStr ret_str = CreationError_to_str(o_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
+       Str_free(ret_str);
        return ret_conv;
 }
 
@@ -25477,6 +26345,7 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_SemanticError_1to_1str(JNIE
        LDKSemanticError* o_conv = (LDKSemanticError*)(o & ~1);
        LDKStr ret_str = SemanticError_to_str(o_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
+       Str_free(ret_str);
        return ret_conv;
 }
 
@@ -25506,6 +26375,7 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_SignOrCreationError_1to_1st
        LDKSignOrCreationError* o_conv = (LDKSignOrCreationError*)o;
        LDKStr ret_str = SignOrCreationError_to_str(o_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
+       Str_free(ret_str);
        return ret_conv;
 }
 
@@ -25516,7 +26386,7 @@ JNIEXPORT int64_t JNICALL Java_org_ldk_impl_bindings_create_1invoice_1from_1chan
        LDKKeysInterface keys_manager_conv = *(LDKKeysInterface*)(((uint64_t)keys_manager) & ~1);
        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_clone(keys_manager_conv.this_arg);
+               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);
@@ -25553,6 +26423,7 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_Invoice_1to_1str(JNIEnv *en
        o_conv.is_owned = false;
        LDKStr ret_str = Invoice_to_str(&o_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
+       Str_free(ret_str);
        return ret_conv;
 }
 
@@ -25562,6 +26433,7 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_SignedRawInvoice_1to_1str(J
        o_conv.is_owned = false;
        LDKStr ret_str = SignedRawInvoice_to_str(&o_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
+       Str_free(ret_str);
        return ret_conv;
 }
 
@@ -25569,6 +26441,7 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_Currency_1to_1str(JNIEnv *e
        LDKCurrency* o_conv = (LDKCurrency*)(o & ~1);
        LDKStr ret_str = Currency_to_str(o_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
+       Str_free(ret_str);
        return ret_conv;
 }
 
@@ -25576,6 +26449,7 @@ JNIEXPORT jstring JNICALL Java_org_ldk_impl_bindings_SiPrefix_1to_1str(JNIEnv *e
        LDKSiPrefix* o_conv = (LDKSiPrefix*)(o & ~1);
        LDKStr ret_str = SiPrefix_to_str(o_conv);
        jstring ret_conv = str_ref_to_java(env, ret_str.chars, ret_str.len);
+       Str_free(ret_str);
        return ret_conv;
 }