_ Git - ldk-java/blob - src/test/java/org/ldk/HumanObjectPeerTest.java

   1 package org.ldk;
   2
   3 import org.bitcoinj.core.*;
   4 import org.bitcoinj.script.Script;
   5 import org.junit.jupiter.api.Test;
   6 import org.ldk.batteries.ChannelManagerConstructor;
   7 import org.ldk.batteries.NioPeerHandler;
   8 import org.ldk.enums.*;
   9 import org.ldk.enums.Currency;
  10 import org.ldk.structs.*;
  11 import org.ldk.util.UInt128;
  12 import org.ldk.util.UInt5;
  13
  14 import java.io.IOException;
  15 import java.lang.ref.WeakReference;
  16 import java.net.InetSocketAddress;
  17 import java.util.*;
  18 import java.util.function.IntConsumer;
  19
  20 class HumanObjectPeerTestInstance {
  21     private final boolean nice_close;
  22     private final boolean use_km_wrapper;
  23     private final boolean use_manual_watch;
  24     private final boolean reload_peers;
  25     private final boolean break_cross_peer_refs;
  26     private final boolean use_nio_peer_handler;
  27     private final boolean use_filter;
  28     private final boolean use_ignore_handler;
  29     private final boolean use_chan_manager_constructor;
  30     private final boolean use_invoice_payer;
  31     TxOut gossip_txout = null;
  32
  33     HumanObjectPeerTestInstance(boolean nice_close, boolean use_km_wrapper, boolean use_manual_watch, boolean reload_peers, boolean break_cross_peer_refs, boolean use_nio_peer_handler, boolean use_filter, boolean use_ignore_handler, boolean use_chan_manager_constructor, boolean use_invoice_payer) {
  34         this.nice_close = nice_close;
  35         this.use_km_wrapper = use_km_wrapper;
  36         this.use_manual_watch = use_manual_watch;
  37         this.reload_peers = reload_peers;
  38         this.break_cross_peer_refs = break_cross_peer_refs;
  39         this.use_nio_peer_handler = use_nio_peer_handler;
  40         this.use_filter = use_filter;
  41         this.use_ignore_handler = use_ignore_handler;
  42         this.use_chan_manager_constructor = use_chan_manager_constructor;
  43         this.use_invoice_payer = use_invoice_payer;
  44     }
  45
  46     class Peer {
  47         KeysInterface manual_keysif(KeysInterface underlying_if) {
  48             return KeysInterface.new_impl(new KeysInterface.KeysInterfaceInterface() {
  49                 @Override public Result_SecretKeyNoneZ get_node_secret(Recipient recipient) { return underlying_if.get_node_secret(recipient); }
  50                 @Override public Result_PublicKeyNoneZ get_node_id(Recipient recipient) { return underlying_if.get_node_id(recipient); }
  51
  52                 @Override public Result_SharedSecretNoneZ ecdh(Recipient recipient, byte[] other_key, Option_ScalarZ tweak) { return underlying_if.ecdh(recipient, other_key, tweak); }
  53                 @Override public byte[] get_destination_script() { return underlying_if.get_destination_script(); }
  54                 @Override public ShutdownScript get_shutdown_scriptpubkey() { return underlying_if.get_shutdown_scriptpubkey(); }
  55
  56                 @Override public byte[] generate_channel_keys_id(boolean inbound, long channel_value_satoshis, UInt128 user_channel_id) {
  57                     return underlying_if.generate_channel_keys_id(inbound, channel_value_satoshis, user_channel_id);
  58                 }
  59                 @Override
  60                 public Sign derive_channel_signer(long channel_value_satoshis, byte[] channel_keys_id) {
  61                     Sign underlying_ck = underlying_if.derive_channel_signer(channel_value_satoshis, channel_keys_id);
  62                     BaseSign underlying_base = underlying_ck.get_base_sign();
  63                     BaseSign.BaseSignInterface bsi = new BaseSign.BaseSignInterface() {
  64                         @Override public byte[] get_per_commitment_point(long idx) {
  65                             return underlying_base.get_per_commitment_point(idx);
  66                         }
  67                         @Override public byte[] release_commitment_secret(long idx) {
  68                             return underlying_base.release_commitment_secret(idx);
  69                         }
  70                         @Override public Result_NoneNoneZ validate_holder_commitment(HolderCommitmentTransaction holder_tx, byte[][] preimages) {
  71                             return underlying_base.validate_holder_commitment(holder_tx, preimages);
  72                         }
  73                         @Override public byte[] channel_keys_id() {
  74                             return channel_keys_id;
  75                         }
  76                         @Override public Result_C2Tuple_SignatureCVec_SignatureZZNoneZ sign_counterparty_commitment(CommitmentTransaction commitment_tx, byte[][] preimages) {
  77                             return underlying_base.sign_counterparty_commitment(commitment_tx, preimages);
  78                         }
  79                         @Override public Result_NoneNoneZ validate_counterparty_revocation(long idx, byte[] secret) {
  80                             return underlying_base.validate_counterparty_revocation(idx, secret);
  81                         }
  82                         @Override public Result_C2Tuple_SignatureCVec_SignatureZZNoneZ sign_holder_commitment_and_htlcs(HolderCommitmentTransaction holder_commitment_tx) {
  83                             return underlying_base.sign_holder_commitment_and_htlcs(holder_commitment_tx);
  84                         }
  85                         @Override public Result_SignatureNoneZ sign_justice_revoked_output(byte[] justice_tx, long input, long amount, byte[] per_commitment_key) {
  86                             return underlying_base.sign_justice_revoked_output(justice_tx, input, amount, per_commitment_key);
  87                         }
  88                         @Override public Result_SignatureNoneZ sign_justice_revoked_htlc(byte[] justice_tx, long input, long amount, byte[] per_commitment_key, HTLCOutputInCommitment htlc) {
  89                             return underlying_base.sign_justice_revoked_htlc(justice_tx, input, amount, per_commitment_key, htlc);
  90                         }
  91                         @Override public Result_SignatureNoneZ sign_counterparty_htlc_transaction(byte[] htlc_tx, long input, long amount, byte[] per_commitment_point, HTLCOutputInCommitment htlc) {
  92                             return underlying_base.sign_counterparty_htlc_transaction(htlc_tx, input, amount, per_commitment_point, htlc);
  93                         }
  94                         @Override public Result_SignatureNoneZ sign_closing_transaction(ClosingTransaction closing_tx) {
  95                             return underlying_base.sign_closing_transaction(closing_tx);
  96                         }
  97                         @Override public Result_SignatureNoneZ sign_holder_anchor_input(byte[] anchor_tx, long input) {
  98                             return underlying_base.sign_holder_anchor_input(anchor_tx, input);
  99                         }
 100                         @Override public Result_C2Tuple_SignatureSignatureZNoneZ sign_channel_announcement(UnsignedChannelAnnouncement msg) {
 101                             return underlying_base.sign_channel_announcement(msg);
 102                         }
 103
 104                         @Override public void provide_channel_parameters(ChannelTransactionParameters channel_parameters) {
 105                             underlying_base.provide_channel_parameters(channel_parameters);
 106                         }
 107                     };
 108                     Sign.SignInterface si = new Sign.SignInterface() {
 109                         @Override
 110                         public byte[] write() {
 111                             return underlying_ck.write();
 112                         }
 113                     };
 114                     Sign resp = Sign.new_impl(si, bsi, underlying_base.get_pubkeys());
 115                     must_free_objs.add(new WeakReference<>(si));
 116                     must_free_objs.add(new WeakReference<>(bsi));
 117                     must_free_objs.add(new WeakReference<>(resp));
 118                     must_free_objs.add(new WeakReference<>(underlying_base));
 119                     must_free_objs.add(new WeakReference<>(underlying_ck));
 120                     return resp;
 121                 }
 122
 123                 @Override
 124                 public byte[] get_secure_random_bytes() {
 125                     return underlying_if.get_secure_random_bytes();
 126                 }
 127
 128                 @Override
 129                 public Result_SignDecodeErrorZ read_chan_signer(byte[] reader) {
 130                     return underlying_if.read_chan_signer(reader);
 131                 }
 132
 133                 @Override
 134                 public Result_RecoverableSignatureNoneZ sign_invoice(byte[] hrp_bytes, UInt5[] invoice_data, Recipient receipient) {
 135                     return underlying_if.sign_invoice(hrp_bytes, invoice_data, receipient);
 136                 }
 137
 138                 @Override
 139                 public byte[] get_inbound_payment_key_material() {
 140                     return underlying_if.get_inbound_payment_key_material();
 141                 }
 142             });
 143         }
 144
 145         Watch get_manual_watch() {
 146             Watch.WatchInterface watch_impl = new Watch.WatchInterface() {
 147                 public ChannelMonitorUpdateStatus watch_channel(OutPoint funding_txo, ChannelMonitor monitor) {
 148                     synchronized (monitors) {
 149                         assert monitors.put(Arrays.toString(funding_txo.get_txid()), monitor) == null;
 150                     }
 151                     return ChannelMonitorUpdateStatus.LDKChannelMonitorUpdateStatus_Completed;
 152                 }
 153
 154                 public ChannelMonitorUpdateStatus update_channel(OutPoint funding_txo, ChannelMonitorUpdate update) {
 155                     synchronized (monitors) {
 156                         String txid = Arrays.toString(funding_txo.get_txid());
 157                         assert monitors.containsKey(txid);
 158                         Result_NoneNoneZ update_res = monitors.get(txid).update_monitor(update, tx_broadcaster, fee_estimator, logger);
 159                         assert update_res instanceof Result_NoneNoneZ.Result_NoneNoneZ_OK;
 160                     }
 161                     return ChannelMonitorUpdateStatus.LDKChannelMonitorUpdateStatus_Completed;
 162                 }
 163
 164                 @Override
 165                 public ThreeTuple_OutPointCVec_MonitorEventZPublicKeyZ[] release_pending_monitor_events() {
 166                     synchronized (monitors) {
 167                         assert monitors.size() <= 1;
 168                         for (ChannelMonitor mon : monitors.values()) {
 169                             ThreeTuple_OutPointCVec_MonitorEventZPublicKeyZ[] res = new ThreeTuple_OutPointCVec_MonitorEventZPublicKeyZ[1];
 170                             res[0] = ThreeTuple_OutPointCVec_MonitorEventZPublicKeyZ.of(mon.get_funding_txo().get_a(), mon.get_and_clear_pending_monitor_events(), mon.get_counterparty_node_id());
 171                             return res;
 172                         }
 173                     }
 174                     return new ThreeTuple_OutPointCVec_MonitorEventZPublicKeyZ[0];
 175                 }
 176             };
 177             Watch watch = Watch.new_impl(watch_impl);
 178             must_free_objs.add(new WeakReference<>(watch_impl));
 179             must_free_objs.add(new WeakReference<>(watch));
 180             return watch;
 181         }
 182
 183         UserConfig get_config() {
 184             ChannelHandshakeConfig channel_config = ChannelHandshakeConfig.with_default();
 185             channel_config.set_announced_channel(true);
 186             UserConfig config = UserConfig.with_default();
 187             config.set_channel_handshake_config(channel_config);
 188             return config;
 189         }
 190
 191         NioPeerHandler nio_peer_handler;
 192         short nio_port;
 193         final byte seed;
 194         final Logger logger;
 195         final FeeEstimator fee_estimator;
 196         final BroadcasterInterface tx_broadcaster;
 197         final KeysManager explicit_keys_manager;
 198         final KeysInterface keys_interface;
 199         final ChainMonitor chain_monitor;
 200         NetworkGraph router;
 201         P2PGossipSync route_handler;
 202         final Watch chain_watch;
 203         final HashSet<String> filter_additions;
 204         Option_FilterZ filter;
 205         ChannelManager chan_manager;
 206         PeerManager peer_manager;
 207         final HashMap<String, ChannelMonitor> monitors; // Wow I forgot just how terrible Java is - we can't put a byte array here.
 208         byte[] node_id;
 209         byte[] connected_peer_node_id = null;
 210         final LinkedList<byte[]> broadcast_set = new LinkedList<>();
 211         final LinkedList<Event> pending_manager_events = new LinkedList<>();
 212         private final CustomMessageHandler custom_message_handler;
 213         final LinkedList<byte[]> received_custom_messages = new LinkedList<>();
 214         final LinkedList<byte[]> custom_messages_to_send = new LinkedList<>();
 215         ChannelManagerConstructor constructor = null;
 216         InvoicePayer payer = null;
 217         GcCheck obj = new GcCheck();
 218
 219         private ChannelMonitor test_mon_roundtrip(OutPoint expected_id, byte[] data) {
 220             // Because get_funding_txo() returns an OutPoint in a tuple that is a reference to an OutPoint inside the
 221             // ChannelMonitor, its a good test to ensure that the OutPoint isn't freed (or is cloned) before the
 222             // ChannelMonitor is. This used to be broken.
 223             Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ roundtrip_monitor = UtilMethods.C2Tuple_BlockHashChannelMonitorZ_read(data, keys_interface);
 224             assert roundtrip_monitor instanceof Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ.Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_OK;
 225             must_free_objs.add(new WeakReference<>(roundtrip_monitor));
 226             TwoTuple_OutPointScriptZ funding_txo = ((Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ.Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_OK) roundtrip_monitor).res.get_b().get_funding_txo();
 227             must_free_objs.add(new WeakReference<>(funding_txo));
 228             System.gc(); System.runFinalization(); // Give the GC a chance to run.
 229             assert Arrays.equals(funding_txo.get_a().get_txid(), expected_id.get_txid());
 230             assert funding_txo.get_a().get_index() == expected_id.get_index();
 231             Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ roundtrip_two = UtilMethods.C2Tuple_BlockHashChannelMonitorZ_read(data, keys_interface);
 232             assert roundtrip_two instanceof Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ.Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_OK;
 233             must_free_objs.add(new WeakReference<>(((Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ.Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_OK) roundtrip_two).res.get_b()));
 234             must_free_objs.add(new WeakReference<>(((Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ.Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_OK) roundtrip_two).res));
 235             must_free_objs.add(new WeakReference<>(roundtrip_two));
 236             return ((Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ.Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_OK) roundtrip_two).res.get_b();
 237         }
 238
 239         private Peer(Object _dummy, byte seed) {
 240             logger = Logger.new_impl((org.ldk.structs.Record arg)->{
 241                 if (arg.get_level() == Level.LDKLevel_Error)
 242                     System.err.println(seed + ": " + arg.get_module_path() + " - " + arg.get_args());
 243                 else
 244                     System.out.println(seed + ": " + arg.get_module_path() + " - " + arg.get_args());
 245             });
 246             fee_estimator = FeeEstimator.new_impl((confirmation_target -> 253));
 247             tx_broadcaster = BroadcasterInterface.new_impl(tx -> {
 248                 synchronized (broadcast_set) {
 249                     broadcast_set.add(tx);
 250                     broadcast_set.notifyAll();
 251                 }
 252             });
 253             monitors = new HashMap<>();
 254             this.seed = seed;
 255             Persist persister = Persist.new_impl(new Persist.PersistInterface() {
 256                 @Override
 257                 public ChannelMonitorUpdateStatus persist_new_channel(OutPoint id, ChannelMonitor data, MonitorUpdateId update_id) {
 258                     synchronized (monitors) {
 259                         String key = Arrays.toString(id.to_channel_id());
 260                         ChannelMonitor res = test_mon_roundtrip(id, data.write());
 261                         assert monitors.put(key, res) == null;
 262                     }
 263                     return ChannelMonitorUpdateStatus.LDKChannelMonitorUpdateStatus_Completed;
 264                 }
 265
 266                 @Override
 267                 public ChannelMonitorUpdateStatus update_persisted_channel(OutPoint id, ChannelMonitorUpdate update, ChannelMonitor data, MonitorUpdateId update_id) {
 268                     synchronized (monitors) {
 269                         String key = Arrays.toString(id.to_channel_id());
 270                         ChannelMonitor res = test_mon_roundtrip(id, data.write());
 271                         // Note that we use a serialization-roundtrip copy of data here, not the original, as this can
 272                         // expose the JVM JIT bug where it finalize()s things still being called.
 273                         assert monitors.put(key, res) != null;
 274                     }
 275                     return ChannelMonitorUpdateStatus.LDKChannelMonitorUpdateStatus_Completed;
 276                 }
 277             });
 278
 279             filter_additions = new HashSet<>();
 280             if (use_filter) {
 281                 this.filter = Option_FilterZ.some(Filter.new_impl(new Filter.FilterInterface() {
 282                     @Override public void register_tx(byte[] txid, byte[] script_pubkey) {
 283                         filter_additions.add(Arrays.toString(txid));
 284                     }
 285                     @Override public void register_output(WatchedOutput output) {
 286                         filter_additions.add(Arrays.toString(output.get_outpoint().get_txid()) + ":" + output.get_outpoint().get_index());
 287                     }
 288                 }));
 289             } else {
 290                 this.filter = Option_FilterZ.none();
 291             }
 292
 293             if (use_manual_watch) {
 294                 chain_watch = get_manual_watch();
 295                 chain_monitor = null;
 296             } else {
 297                 chain_monitor = ChainMonitor.of(filter, tx_broadcaster, logger, fee_estimator, persister);
 298                 chain_watch = chain_monitor.as_Watch();
 299             }
 300
 301             byte[] key_seed = new byte[32];
 302             for (byte i = 0; i < 32; i++) {
 303                 key_seed[i] = (byte) (i ^ seed);
 304             }
 305             KeysManager keys = KeysManager.of(key_seed, System.currentTimeMillis() / 1000, (int) (System.currentTimeMillis() * 1000));
 306             if (use_km_wrapper) {
 307                 this.keys_interface = manual_keysif(keys.as_KeysInterface());
 308                 this.explicit_keys_manager = null;
 309             } else {
 310                 this.keys_interface = keys.as_KeysInterface();
 311                 this.explicit_keys_manager = keys;
 312             }
 313
 314             this.custom_message_handler = CustomMessageHandler.new_impl(new CustomMessageHandler.CustomMessageHandlerInterface() {
 315                 @Override
 316                 public Result_NoneLightningErrorZ handle_custom_message(Type msg, byte[] sender_node_id) {
 317                     synchronized (received_custom_messages) {
 318                         received_custom_messages.add(msg.write());
 319                         received_custom_messages.notifyAll();
 320                     }
 321                     return Result_NoneLightningErrorZ.ok();
 322                 }
 323
 324                 @Override
 325                 public TwoTuple_PublicKeyTypeZ[] get_and_clear_pending_msg() {
 326                     byte[][] bytes;
 327                     synchronized (custom_messages_to_send) {
 328                         bytes = custom_messages_to_send.toArray(new byte[0][0]);
 329                         custom_messages_to_send.clear();
 330                     }
 331                     TwoTuple_PublicKeyTypeZ[] ret = new TwoTuple_PublicKeyTypeZ[bytes.length];
 332                     for (int i = 0; i < bytes.length; i++) {
 333                         final int msg_idx = i;
 334                         ret[i] = TwoTuple_PublicKeyTypeZ.of(connected_peer_node_id, Type.new_impl(new Type.TypeInterface() {
 335                             @Override public short type_id() { return 4096; }
 336                             @Override public String debug_str() { return "Custom Java Message"; }
 337                             @Override public byte[] write() { return bytes[msg_idx]; }
 338                         }));
 339                     }
 340                     return ret;
 341                 }
 342             }, (message_type, buffer) -> {
 343                 assert message_type == 4096;
 344                 return Result_COption_TypeZDecodeErrorZ.ok(Option_TypeZ.some(Type.new_impl(new Type.TypeInterface() {
 345                     @Override public short type_id() { return 4096; }
 346                     @Override public String debug_str() { return "Custom Java-Decoded Message"; }
 347                     @Override public byte[] write() { return buffer; }
 348                 })));
 349             });
 350         }
 351         private void bind_nio() {
 352             if (!use_nio_peer_handler) return;
 353             if (use_chan_manager_constructor) {
 354                 this.nio_peer_handler = this.constructor.nio_peer_handler;
 355             } else {
 356                 try { this.nio_peer_handler = new NioPeerHandler(peer_manager); } catch (IOException e) { assert false; }
 357             }
 358             for (short i = 10_000; true; i++) {
 359                 try {
 360                     nio_peer_handler.bind_listener(new InetSocketAddress("127.0.0.1", i));
 361                     nio_port = i;
 362                     break;
 363                 } catch (IOException e) { assert i < 10_500; }
 364             }
 365         }
 366         private void setup_route_handler() {
 367             this.route_handler = P2PGossipSync.of(this.router,
 368                 Option_AccessZ.some(Access.new_impl((genesis_hash, short_channel_id) -> Result_TxOutAccessErrorZ.ok(gossip_txout))), this.logger);
 369         }
 370         Peer(byte seed) {
 371             this(null, seed);
 372             this.router = NetworkGraph.of(new byte[32], this.logger);
 373             this.setup_route_handler();
 374
 375             if (use_chan_manager_constructor) {
 376                 if (use_ignore_handler) {
 377                     this.constructor = new ChannelManagerConstructor(Network.LDKNetwork_Bitcoin, get_config(), new byte[32], 0,
 378                                                         this.keys_interface, this.fee_estimator, this.chain_monitor, null, this.tx_broadcaster, this.logger);
 379                 } else {
 380                     this.constructor = new ChannelManagerConstructor(Network.LDKNetwork_Bitcoin, get_config(), new byte[32], 0,
 381                                                         this.keys_interface, this.fee_estimator, this.chain_monitor, this.router, this.tx_broadcaster, this.logger);
 382                 }
 383                 ProbabilisticScoringParameters params = ProbabilisticScoringParameters.with_default();
 384                 ProbabilisticScorer default_scorer = ProbabilisticScorer.of(params, this.router, this.logger);
 385                 Result_ProbabilisticScorerDecodeErrorZ score_res = ProbabilisticScorer.read(default_scorer.write(), params, this.router, this.logger);
 386                 assert score_res.is_ok();
 387                 Score score = ((Result_ProbabilisticScorerDecodeErrorZ.Result_ProbabilisticScorerDecodeErrorZ_OK) score_res).res.as_Score();
 388                 MultiThreadedLockableScore scorer = null;
 389                 if (use_invoice_payer) { scorer = MultiThreadedLockableScore.of(score); }
 390                 constructor.chain_sync_completed(new ChannelManagerConstructor.EventHandler() {
 391                     @Override public void handle_event(Event event) {
 392                         synchronized (pending_manager_events) {
 393                             pending_manager_events.add(event);
 394                             pending_manager_events.notifyAll();
 395                         }
 396                     }
 397                     @Override public void persist_manager(byte[] channel_manager_bytes) { assert channel_manager_bytes.length > 1; }
 398                     @Override public void persist_network_graph(byte[] graph_bytes) { assert graph_bytes.length > 1; }
 399                     @Override public void persist_scorer(byte[] scorer_bytes) { assert scorer_bytes.length > 1; }
 400                 }, scorer);
 401                 this.chan_manager = constructor.channel_manager;
 402                 this.peer_manager = constructor.peer_manager;
 403                 this.payer = constructor.payer;
 404                 must_free_objs.add(new WeakReference<>(this.chan_manager));
 405             } else {
 406                 ChainParameters params = ChainParameters.of(Network.LDKNetwork_Bitcoin, BestBlock.of(new byte[32], 0));
 407                 this.chan_manager = ChannelManager.of(this.fee_estimator, chain_watch, tx_broadcaster, logger, this.keys_interface, get_config(), params);
 408                 byte[] random_data = keys_interface.get_secure_random_bytes();
 409                 Result_SecretKeyNoneZ node_secret = keys_interface.get_node_secret(Recipient.LDKRecipient_Node);
 410                 assert node_secret.is_ok();
 411                 this.peer_manager = PeerManager.of(chan_manager.as_ChannelMessageHandler(), route_handler.as_RoutingMessageHandler(),
 412                         IgnoringMessageHandler.of().as_OnionMessageHandler(),
 413                         ((Result_SecretKeyNoneZ.Result_SecretKeyNoneZ_OK)node_secret).res, (int)(System.currentTimeMillis() / 1000),
 414                         random_data, logger, this.custom_message_handler);
 415                 if (use_invoice_payer) {
 416                     this.payer = InvoicePayer.of(this.chan_manager.as_Payer(), Router.new_impl(new Router.RouterInterface() {
 417                         @Override public void notify_payment_path_failed(RouteHop[] path, long short_channel_id) {}
 418                         @Override public void notify_payment_path_successful(RouteHop[] path) {}
 419                         @Override public void notify_payment_probe_successful(RouteHop[] path) {}
 420                         @Override public void notify_payment_probe_failed(RouteHop[] path, long short_channel_id) {}
 421
 422                         @Override
 423                         public Result_RouteLightningErrorZ find_route_with_id(byte[] payer, RouteParameters route_params, ChannelDetails[] first_hops, InFlightHtlcs inflight_htlcs, byte[] _payment_hash, byte[] _payment_id) {
 424                             return find_route(payer, route_params, first_hops, inflight_htlcs);
 425                         }
 426
 427                         @Override
 428                         public Result_RouteLightningErrorZ find_route(byte[] payer, RouteParameters params, ChannelDetails[] first_hops, InFlightHtlcs inflight_htlcs) {
 429                             while (true) {
 430                                 try (ReadOnlyNetworkGraph graph = router.read_only()) {
 431                                     assert graph.channel(424242) == null;
 432                                     long[] channels = graph.list_channels();
 433                                     if (channels.length != 1) {
 434                                         // If we're using a NioPeerHandler, the handling of announcement signatures and
 435                                         // channel broadcasting may be done async, so just wait until the channel shows up.
 436                                         assert use_nio_peer_handler;
 437                                         continue;
 438                                     }
 439                                     ChannelInfo chan = graph.channel(channels[0]);
 440                                     assert Arrays.equals(chan.get_node_one().as_slice(), chan.get_node_one().write());
 441                                     assert Arrays.equals(chan.get_node_one().as_slice(), chan_manager.get_our_node_id()) ||
 442                                             Arrays.equals(chan.get_node_two().as_slice(), chan_manager.get_our_node_id());
 443                                     break;
 444                                 }
 445                             }
 446                             return UtilMethods.find_route(payer, params, router, first_hops, logger, Score.new_impl(new Score.ScoreInterface() {
 447                                 @Override public void payment_path_failed(RouteHop[] path, long scid) {}
 448                                 @Override public long channel_penalty_msat(long short_channel_id, NodeId source, NodeId target, ChannelUsage usage) { return 0; }
 449                                 @Override public void payment_path_successful(RouteHop[] path) {}
 450                                 @Override public void probe_failed(RouteHop[] path, long short_channel_id) { assert false; }
 451                                 @Override public void probe_successful(RouteHop[] path) { assert false; }
 452                                 @Override public byte[] write() { assert false; return null; }
 453                             }), new byte[32]);
 454                         }
 455                     }), logger, EventHandler.new_impl(new EventHandler.EventHandlerInterface() {
 456                         @Override public void handle_event(Event event) {
 457                             synchronized (pending_manager_events) {
 458                                 pending_manager_events.add(event);
 459                                 pending_manager_events.notifyAll();
 460                             }
 461                         }
 462                     }), Retry.attempts(0));
 463                 }
 464             }
 465
 466             this.node_id = chan_manager.get_our_node_id();
 467             this.filter = null;
 468             bind_nio();
 469             System.gc();
 470         }
 471
 472         Object ptr_to;
 473         Peer(Peer orig) {
 474             this(null, orig.seed);
 475             if (use_chan_manager_constructor) {
 476                 byte[][] monitors = {orig.monitors.values().stream().iterator().next().write()};
 477                 byte[] serialized = orig.chan_manager.write();
 478                 byte[] serialized_router = orig.router.write();
 479                 try {
 480                     Filter filter_nullable = null;
 481                     if (this.filter instanceof Option_FilterZ.Some) {
 482                         filter_nullable = ((Option_FilterZ.Some) this.filter).some;
 483                     }
 484                     if (use_ignore_handler) {
 485                         this.constructor = new ChannelManagerConstructor(serialized, monitors, get_config(),
 486                                 this.keys_interface, this.fee_estimator, this.chain_monitor, filter_nullable,
 487                                 null, this.tx_broadcaster, this.logger);
 488                     } else {
 489                         this.constructor = new ChannelManagerConstructor(serialized, monitors, get_config(),
 490                                 this.keys_interface, this.fee_estimator, this.chain_monitor, filter_nullable,
 491                                 serialized_router, this.tx_broadcaster, this.logger);
 492                         try {
 493                             // Test that ChannelManagerConstructor correctly rejects duplicate ChannelMonitors
 494                             byte[][] monitors_dupd = new byte[2][];
 495                             monitors_dupd[0] = monitors[0];
 496                             monitors_dupd[1] = monitors[0];
 497                             ChannelManagerConstructor constr = this.constructor = new ChannelManagerConstructor(serialized, monitors_dupd, get_config(),
 498                                     this.keys_interface, this.fee_estimator, this.chain_monitor, filter_nullable,
 499                                     null, this.tx_broadcaster, this.logger);
 500                             assert false;
 501                         } catch (ChannelManagerConstructor.InvalidSerializedDataException e) {}
 502                     }
 503                     this.router = this.constructor.net_graph;
 504                     setup_route_handler();
 505                     MultiThreadedLockableScore scorer = null;
 506                     if (use_invoice_payer) { scorer = MultiThreadedLockableScore.of(ProbabilisticScorer.of(ProbabilisticScoringParameters.with_default(), this.router, this.logger).as_Score()); }
 507                     constructor.chain_sync_completed(new ChannelManagerConstructor.EventHandler() {
 508                         @Override public void handle_event(Event event) {
 509                             synchronized (pending_manager_events) {
 510                                 pending_manager_events.add(event);
 511                                 pending_manager_events.notifyAll();
 512                             }
 513                         }
 514                         @Override public void persist_manager(byte[] channel_manager_bytes) { assert channel_manager_bytes.length > 1; }
 515                         @Override public void persist_network_graph(byte[] graph_bytes) { assert graph_bytes.length > 1; }
 516                         @Override public void persist_scorer(byte[] scorer_bytes) { assert scorer_bytes.length > 1; }
 517                     }, scorer);
 518                     this.chan_manager = constructor.channel_manager;
 519                     this.payer = constructor.payer;
 520                     this.peer_manager = constructor.peer_manager;
 521                     must_free_objs.add(new WeakReference<>(this.chan_manager));
 522                     // If we are using a ChannelManagerConstructor, we may have pending events waiting on the old peer
 523                     // which have been removed from the ChannelManager but which we still need to handle.
 524                     this.pending_manager_events.addAll(orig.pending_manager_events);
 525                     if (!this.pending_manager_events.isEmpty()) {
 526                         // However, this implies cross_reload_ref_pollution
 527                         cross_reload_ref_pollution = true;
 528                     }
 529                 } catch (ChannelManagerConstructor.InvalidSerializedDataException e) {
 530                     assert false;
 531                 }
 532             } else {
 533                 this.router = NetworkGraph.of(new byte[32], this.logger);
 534                 this.setup_route_handler();
 535                 ChannelMonitor[] monitors = new ChannelMonitor[1];
 536                 assert orig.monitors.size() == 1;
 537                 if (!break_cross_peer_refs) {
 538                     monitors[0] = orig.monitors.values().stream().iterator().next();
 539                 } else {
 540                     byte[] serialized = orig.monitors.values().stream().iterator().next().write();
 541                     Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ res =
 542                             UtilMethods.C2Tuple_BlockHashChannelMonitorZ_read(serialized, this.keys_interface);
 543                     assert res instanceof Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ.Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_OK;
 544                     monitors[0] = ((Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ.Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_OK) res).res.get_b();
 545                 }
 546                 byte[] serialized = orig.chan_manager.write();
 547                 Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ read_res =
 548                         UtilMethods.C2Tuple_BlockHashChannelManagerZ_read(serialized, this.keys_interface, this.fee_estimator, this.chain_watch, this.tx_broadcaster, this.logger, get_config(), monitors);
 549                 assert read_res instanceof Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ.Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_OK;
 550                 this.chan_manager = ((Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ.Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_OK) read_res).res.get_b();
 551                 this.chain_watch.watch_channel(monitors[0].get_funding_txo().get_a(), monitors[0]);
 552                 byte[] random_data = keys_interface.get_secure_random_bytes();
 553                 Result_SecretKeyNoneZ node_secret = keys_interface.get_node_secret(Recipient.LDKRecipient_Node);
 554                 assert node_secret.is_ok();
 555                 this.peer_manager = PeerManager.of(chan_manager.as_ChannelMessageHandler(), route_handler.as_RoutingMessageHandler(),
 556                         IgnoringMessageHandler.of().as_OnionMessageHandler(),
 557                         ((Result_SecretKeyNoneZ.Result_SecretKeyNoneZ_OK)node_secret).res, (int)(System.currentTimeMillis() / 1000),
 558                         random_data, logger, this.custom_message_handler);
 559                 if (!break_cross_peer_refs && (use_manual_watch || use_km_wrapper)) {
 560                     // When we pass monitors[0] into chain_watch.watch_channel we create a reference from the new Peer to a
 561                     // field in the old peer, preventing freeing of the original Peer until the new Peer is freed. Thus, we
 562                     // shouldn't bother waiting for the original to be freed later on.
 563                     cross_reload_ref_pollution = true;
 564                 }
 565                 if (use_invoice_payer) {
 566                     this.payer = InvoicePayer.of(this.chan_manager.as_Payer(), Router.new_impl(new Router.RouterInterface() {
 567                         @Override public void notify_payment_path_failed(RouteHop[] path, long short_channel_id) {}
 568                         @Override public void notify_payment_path_successful(RouteHop[] path) {}
 569                         @Override public void notify_payment_probe_successful(RouteHop[] path) {}
 570                         @Override public void notify_payment_probe_failed(RouteHop[] path, long short_channel_id) {}
 571
 572                         @Override
 573                         public Result_RouteLightningErrorZ find_route_with_id(byte[] payer, RouteParameters route_params, ChannelDetails[] first_hops, InFlightHtlcs inflight_htlcs, byte[] _payment_hash, byte[] _payment_id) {
 574                             return find_route(payer, route_params, first_hops, inflight_htlcs);
 575                         }
 576
 577                         @Override
 578                         public Result_RouteLightningErrorZ find_route(byte[] payer, RouteParameters route_params, ChannelDetails[] first_hops, InFlightHtlcs inflight_htlcs) {
 579                             return UtilMethods.find_route(payer, route_params, router, first_hops, logger, Score.new_impl(new Score.ScoreInterface() {
 580                                 @Override public long channel_penalty_msat(long short_channel_id, NodeId source, NodeId target, ChannelUsage usage) { return 0; }
 581                                 @Override public void payment_path_failed(RouteHop[] path, long scid) {}
 582                                 @Override public void payment_path_successful(RouteHop[] path) {}
 583                                 @Override public void probe_failed(RouteHop[] path, long short_channel_id) { assert false; }
 584                                 @Override public void probe_successful(RouteHop[] path) { assert false; }
 585                                 @Override public byte[] write() { assert false; return null; }
 586                             }), new byte[32]);
 587                         }
 588                     }), logger, EventHandler.new_impl(new EventHandler.EventHandlerInterface() {
 589                         @Override public void handle_event(Event event) {
 590                             synchronized (pending_manager_events) {
 591                                 pending_manager_events.add(event);
 592                                 pending_manager_events.notifyAll();
 593                             }
 594                         }
 595                     }), Retry.attempts(0));
 596                 }
 597             }
 598             this.node_id = chan_manager.get_our_node_id();
 599             bind_nio();
 600
 601             if (cross_reload_ref_pollution) {
 602                 // This really, really needs to be handled at the bindings layer, but its rather complicated -
 603                 // ChannelSigners can be cloned and passed around without java being involved, resulting in them being
 604                 // owned by both one or more ChannelMonitors and a ChannelManager, with only one having proper pointers
 605                 // to the ChannelSigner. Ideally, the ChannelSigner would have a global reference to the Java
 606                 // implementation class, but that results in circular references. Instead, we need some ability to,
 607                 // while cloning ChannelSigners, add new references in the calling Java struct (ie ChannelMonitor) to
 608                 // the ChannelSigner.
 609                 this.ptr_to = orig.chan_manager;
 610             }
 611             this.filter = null;
 612         }
 613
 614         TwoTuple_TxidCVec_C2Tuple_u32TxOutZZZ[] connect_block(Block b, int height, long expected_monitor_update_len) {
 615             byte[] header = Arrays.copyOfRange(b.bitcoinSerialize(), 0, 80);
 616             TwoTuple_usizeTransactionZ[] txn;
 617             if (b.hasTransactions()) {
 618                 assert b.getTransactions().size() == 1;
 619                 TwoTuple_usizeTransactionZ txp = TwoTuple_usizeTransactionZ.of((long) 0, b.getTransactions().get(0).bitcoinSerialize());
 620                 txn = new TwoTuple_usizeTransactionZ[]{txp};
 621             } else
 622                 txn = new TwoTuple_usizeTransactionZ[0];
 623             if (chain_monitor != null) {
 624                 chan_manager.as_Listen().block_connected(b.bitcoinSerialize(), height);
 625                 chain_monitor.as_Listen().block_connected(b.bitcoinSerialize(), height);
 626             } else {
 627                 chan_manager.as_Confirm().transactions_confirmed(header, txn, height);
 628                 chan_manager.as_Confirm().best_block_updated(header, height);
 629                 // Connect manually if we aren't using a ChainMonitor and are implementing Watch ourselves
 630                 synchronized (monitors) {
 631                     assert monitors.size() == 1;
 632                     for (ChannelMonitor mon : monitors.values()) {
 633                         TwoTuple_TxidCVec_C2Tuple_u32TxOutZZZ[] ret = mon.block_connected(header, txn, height, tx_broadcaster, fee_estimator, logger);
 634                         assert ret.length == expected_monitor_update_len;
 635                         return ret;
 636                     }
 637                 }
 638             }
 639             return null;
 640         }
 641
 642         Event[] get_monitor_events(int expected_len) {
 643             if (use_chan_manager_constructor) {
 644                 while (true) {
 645                     synchronized (this.pending_manager_events) {
 646                         if (expected_len != 0 && this.pending_manager_events.size() == expected_len) {
 647                             break;
 648                         }
 649                     }
 650                     if (expected_len == 0) {
 651                         try { Thread.sleep(500); } catch (InterruptedException e) { assert false; }
 652                         break;
 653                     } else {
 654                         Thread.yield();
 655                     }
 656                 }
 657                 synchronized (this.pending_manager_events) {
 658                     Event[] res = this.pending_manager_events.toArray(new Event[0]);
 659                     this.pending_manager_events.clear();
 660                     assert res.length == expected_len;
 661                     return res;
 662                 }
 663             } else if (chain_monitor != null) {
 664                 ArrayList<Event> l = new ArrayList<Event>();
 665                 chain_monitor.as_EventsProvider().process_pending_events(EventHandler.new_impl(l::add));
 666                 assert l.size() == expected_len;
 667                 return l.toArray(new Event[0]);
 668             } else {
 669                 synchronized (monitors) {
 670                     assert monitors.size() == 1;
 671                     for (ChannelMonitor mon : monitors.values()) {
 672                         Event[] res = mon.get_and_clear_pending_events();
 673                         assert res.length == expected_len;
 674                         return res;
 675                     }
 676                     return null;
 677                 }
 678             }
 679         }
 680
 681         Event[] get_manager_events(int expected_len, Peer peer1, Peer peer2) {
 682             assert expected_len != 0;
 683             if (!use_nio_peer_handler) {
 684                 maybe_exchange_peer_messages(peer1, peer2);
 685             }
 686             Event[] res = new Event[0];
 687             if (use_chan_manager_constructor) {
 688                 while (res.length < expected_len) {
 689                     synchronized (this.pending_manager_events) {
 690                         if (this.pending_manager_events.size() >= expected_len) {
 691                             res = this.pending_manager_events.toArray(res);
 692                             assert res.length == expected_len;
 693                             this.pending_manager_events.clear();
 694                         }
 695                         if (res.length < expected_len) {
 696                             try { this.pending_manager_events.wait(); } catch (InterruptedException e) { assert false; }
 697                         }
 698                     }
 699                 }
 700             } else {
 701                 ArrayList<Event> l = new ArrayList<Event>();
 702                 while (l.size() < expected_len) {
 703                     Thread.yield();
 704                     if (use_nio_peer_handler) {
 705                         peer1.nio_peer_handler.check_events();
 706                         peer2.nio_peer_handler.check_events();
 707                     }
 708                     chan_manager.as_EventsProvider().process_pending_events(EventHandler.new_impl(l::add));
 709                 }
 710                 return l.toArray(new Event[0]);
 711             }
 712             assert res.length == expected_len;
 713             return res;
 714         }
 715     }
 716
 717     static class DescriptorHolder { SocketDescriptor val; }
 718
 719     boolean running = false;
 720     final LinkedList<Runnable> runqueue = new LinkedList();
 721     boolean ran = false;
 722     Thread t = new Thread(() -> {
 723             while (true) {
 724                 try {
 725                     Runnable r;
 726                     synchronized (runqueue) {
 727                         while (runqueue.isEmpty()) {
 728                             runqueue.wait();
 729                         }
 730                         running = true;
 731                         r = runqueue.pollFirst();
 732                     }
 733                     r.run();
 734                     synchronized (runqueue) {
 735                         running = false;
 736                         runqueue.notifyAll();
 737                     }
 738                 } catch (InterruptedException e) {
 739                     return;
 740                 }
 741             }
 742     });
 743
 744     void maybe_exchange_peer_messages(Peer peer1, Peer peer2) {
 745         if (!use_nio_peer_handler) {
 746             while (true) {
 747                 peer1.peer_manager.process_events();
 748                 peer2.peer_manager.process_events();
 749                 synchronized (runqueue) {
 750                     if (runqueue.isEmpty() && !running) {
 751                         if (ran) {
 752                             ran = false;
 753                             continue;
 754                         } else { break; }
 755                     }
 756                     try { runqueue.wait(); } catch (InterruptedException e) { assert false; }
 757                 }
 758             }
 759         } else if (!use_chan_manager_constructor) {
 760             peer1.nio_peer_handler.check_events();
 761             peer2.nio_peer_handler.check_events();
 762         }
 763     }
 764     void do_read_event(PeerManager pm, SocketDescriptor descriptor, byte[] data) {
 765         if (!t.isAlive()) t.start();
 766         synchronized (runqueue) {
 767             ran = true;
 768             runqueue.add(() -> {
 769                 Result_boolPeerHandleErrorZ res = pm.read_event(descriptor, data);
 770                 assert res instanceof Result_boolPeerHandleErrorZ.Result_boolPeerHandleErrorZ_OK;
 771             });
 772             runqueue.notifyAll();
 773         }
 774         must_free_objs.add(new WeakReference<>(data));
 775     }
 776
 777     void connect_peers(final Peer peer1, final Peer peer2) {
 778         peer2.connected_peer_node_id = peer1.node_id;
 779         peer1.connected_peer_node_id = peer2.node_id;
 780         if (use_nio_peer_handler) {
 781             try {
 782                 peer1.nio_peer_handler.connect(peer2.chan_manager.get_our_node_id(), new InetSocketAddress("127.0.0.1", peer2.nio_port), 100);
 783             } catch (IOException e) { assert false; }
 784             while (peer1.peer_manager.get_peer_node_ids().length == 0 || peer2.peer_manager.get_peer_node_ids().length == 0) {
 785                 Thread.yield();
 786             }
 787         } else {
 788             DescriptorHolder descriptor1 = new DescriptorHolder();
 789             DescriptorHolder descriptor1ref = descriptor1;
 790             SocketDescriptor descriptor2 = SocketDescriptor.new_impl(new SocketDescriptor.SocketDescriptorInterface() {
 791                 @Override
 792                 public long send_data(byte[] data, boolean resume_read) {
 793                     do_read_event(peer1.peer_manager, descriptor1ref.val, data);
 794                     return data.length;
 795                 }
 796
 797                 @Override public void disconnect_socket() { assert false; }
 798                 @Override public boolean eq(SocketDescriptor other_arg) { return other_arg.hash() == 2; }
 799                 @Override public long hash() { return 2; }
 800             });
 801
 802             descriptor1.val = SocketDescriptor.new_impl(new SocketDescriptor.SocketDescriptorInterface() {
 803                 @Override
 804                 public long send_data(byte[] data, boolean resume_read) {
 805                     do_read_event(peer2.peer_manager, descriptor2, data);
 806                     return data.length;
 807                 }
 808
 809                 @Override public void disconnect_socket() { assert false; }
 810                 @Override public boolean eq(SocketDescriptor other_arg) { return other_arg.hash() == 1; }
 811                 @Override public long hash() { return 1; }
 812             });
 813
 814             Result_CVec_u8ZPeerHandleErrorZ conn_res = peer1.peer_manager.new_outbound_connection(peer2.node_id, descriptor1.val, Option_NetAddressZ.none());
 815             assert conn_res instanceof Result_CVec_u8ZPeerHandleErrorZ.Result_CVec_u8ZPeerHandleErrorZ_OK;
 816
 817             Result_NonePeerHandleErrorZ inbound_conn_res = peer2.peer_manager.new_inbound_connection(descriptor2, Option_NetAddressZ.none());
 818             assert inbound_conn_res instanceof Result_NonePeerHandleErrorZ.Result_NonePeerHandleErrorZ_OK;
 819             do_read_event(peer2.peer_manager, descriptor2, ((Result_CVec_u8ZPeerHandleErrorZ.Result_CVec_u8ZPeerHandleErrorZ_OK) conn_res).res);
 820
 821             maybe_exchange_peer_messages(peer1, peer2);
 822         }
 823     }
 824
 825     TestState do_test_message_handler() throws InterruptedException {
 826         Peer peer1 = new Peer((byte) 1);
 827         Peer peer2 = new Peer((byte) 2);
 828
 829         connect_peers(peer1, peer2);
 830
 831         UInt128 user_id = new UInt128(new byte[] {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16});
 832
 833         Result__u832APIErrorZ cc_res = peer1.chan_manager.create_channel(peer2.node_id, 100000, 1000, user_id, null);
 834         assert cc_res instanceof Result__u832APIErrorZ.Result__u832APIErrorZ_OK;
 835
 836         // Previously, this was a SEGFAULT instead of get_funding_txo() returning null.
 837         ChannelDetails pre_funding_chan = peer1.chan_manager.list_channels()[0];
 838         assert pre_funding_chan.get_funding_txo() == null;
 839
 840         Event[] events = peer1.get_manager_events(1, peer1, peer2);
 841         assert events[0] instanceof Event.FundingGenerationReady;
 842         assert ((Event.FundingGenerationReady) events[0]).channel_value_satoshis == 100000;
 843         assert ((Event.FundingGenerationReady) events[0]).user_channel_id.equals(user_id);
 844         byte[] funding_spk = ((Event.FundingGenerationReady) events[0]).output_script;
 845         assert funding_spk.length == 34 && funding_spk[0] == 0 && funding_spk[1] == 32; // P2WSH
 846         byte[] chan_id = ((Event.FundingGenerationReady) events[0]).temporary_channel_id;
 847
 848         NetworkParameters bitcoinj_net = NetworkParameters.fromID(NetworkParameters.ID_MAINNET);
 849
 850         Transaction funding = new Transaction(bitcoinj_net);
 851         funding.addInput(new TransactionInput(bitcoinj_net, funding, new byte[0]));
 852         funding.getInputs().get(0).setWitness(new TransactionWitness(2)); // Make sure we don't complain about lack of witness
 853         funding.getInput(0).getWitness().setPush(0, new byte[]{0x1});
 854         funding.addOutput(Coin.SATOSHI.multiply(100000), new Script(funding_spk));
 855         Result_NoneAPIErrorZ funding_res = peer1.chan_manager.funding_transaction_generated(chan_id, peer2.node_id, funding.bitcoinSerialize());
 856         assert funding_res instanceof Result_NoneAPIErrorZ.Result_NoneAPIErrorZ_OK;
 857
 858         gossip_txout = new TxOut(100000, funding_spk);
 859
 860         maybe_exchange_peer_messages(peer1, peer2);
 861         synchronized (peer1.broadcast_set) {
 862             while (peer1.broadcast_set.size() != 1) {
 863                 peer1.broadcast_set.wait();
 864             }
 865         }
 866
 867         assert peer1.broadcast_set.size() == 1;
 868         assert Arrays.equals(peer1.broadcast_set.get(0), funding.bitcoinSerialize());
 869         peer1.broadcast_set.clear();
 870
 871         Block b = new Block(bitcoinj_net, 2, Sha256Hash.ZERO_HASH, Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
 872         peer1.connect_block(b, 1, 0);
 873         peer2.connect_block(b, 1, 0);
 874
 875         for (int height = 2; height < 10; height++) {
 876             b = new Block(bitcoinj_net, 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[0]));
 877             peer1.connect_block(b, height, 0);
 878             peer2.connect_block(b, height, 0);
 879         }
 880
 881         maybe_exchange_peer_messages(peer1, peer2);
 882         while (peer1.chan_manager.list_usable_channels().length != 1 || peer2.chan_manager.list_usable_channels().length != 1) ;
 883
 884         events = peer1.get_manager_events(1, peer1, peer2);
 885         assert events[0] instanceof Event.ChannelReady;
 886
 887         events = peer2.get_manager_events(1, peer1, peer2);
 888         assert events[0] instanceof Event.ChannelReady;
 889
 890         ChannelDetails[] peer1_chans = peer1.chan_manager.list_usable_channels();
 891         ChannelDetails[] peer2_chans = peer2.chan_manager.list_usable_channels();
 892         assert peer1_chans.length == 1;
 893         assert peer2_chans.length == 1;
 894         assert peer1_chans[0].get_channel_value_satoshis() == 100000;
 895         assert peer1_chans[0].get_is_usable();
 896         Option_u64Z short_chan_id = peer1_chans[0].get_short_channel_id();
 897         assert short_chan_id instanceof Option_u64Z.Some;
 898         assert ((Option_u64Z.Some)short_chan_id).some == (1L << 40); // 0th output in the 0th transaction in the 1st block
 899         assert Arrays.equals(peer1_chans[0].get_channel_id(), funding.getTxId().getReversedBytes());
 900         assert Arrays.equals(peer2_chans[0].get_channel_id(), funding.getTxId().getReversedBytes());
 901
 902         Result_InvoiceSignOrCreationErrorZ invoice = UtilMethods.create_invoice_from_channelmanager(peer2.chan_manager, peer2.keys_interface, peer2.logger, Currency.LDKCurrency_Bitcoin, Option_u64Z.some(10000000), "Invoice Description", 7200);
 903         assert invoice instanceof Result_InvoiceSignOrCreationErrorZ.Result_InvoiceSignOrCreationErrorZ_OK;
 904         System.out.println("Got invoice: " + ((Result_InvoiceSignOrCreationErrorZ.Result_InvoiceSignOrCreationErrorZ_OK) invoice).res.to_str());
 905
 906         Result_InvoiceParseOrSemanticErrorZ parsed_invoice = Invoice.from_str(((Result_InvoiceSignOrCreationErrorZ.Result_InvoiceSignOrCreationErrorZ_OK) invoice).res.to_str());
 907         assert parsed_invoice instanceof Result_InvoiceParseOrSemanticErrorZ.Result_InvoiceParseOrSemanticErrorZ_OK;
 908         assert Arrays.equals(((Result_InvoiceParseOrSemanticErrorZ.Result_InvoiceParseOrSemanticErrorZ_OK) parsed_invoice).res.payment_hash(), ((Result_InvoiceSignOrCreationErrorZ.Result_InvoiceSignOrCreationErrorZ_OK) invoice).res.payment_hash());
 909         SignedRawInvoice signed_raw = ((Result_InvoiceParseOrSemanticErrorZ.Result_InvoiceParseOrSemanticErrorZ_OK) parsed_invoice).res.into_signed_raw();
 910         RawInvoice raw_invoice = signed_raw.raw_invoice();
 911         byte[] desc_hash = raw_invoice.signable_hash();
 912         Description raw_invoice_description = raw_invoice.description();
 913         String description_string = raw_invoice_description.into_inner();
 914         assert description_string.equals("Invoice Description");
 915
 916         if (!use_invoice_payer) {
 917             byte[] payment_hash = ((Result_InvoiceSignOrCreationErrorZ.Result_InvoiceSignOrCreationErrorZ_OK) invoice).res.payment_hash();
 918             byte[] payment_secret = ((Result_InvoiceSignOrCreationErrorZ.Result_InvoiceSignOrCreationErrorZ_OK) invoice).res.payment_secret();
 919             byte[] dest_node_id = ((Result_InvoiceSignOrCreationErrorZ.Result_InvoiceSignOrCreationErrorZ_OK) invoice).res.recover_payee_pub_key();
 920             assert Arrays.equals(dest_node_id, peer2.node_id);
 921             InvoiceFeatures invoice_features = ((Result_InvoiceSignOrCreationErrorZ.Result_InvoiceSignOrCreationErrorZ_OK) invoice).res.features();
 922             RouteHint[] route_hints = ((Result_InvoiceSignOrCreationErrorZ.Result_InvoiceSignOrCreationErrorZ_OK) invoice).res.route_hints();
 923
 924             PaymentParameters payee = PaymentParameters.of(peer2.node_id, invoice_features, route_hints, Option_u64Z.none(), 6*24*14, (byte)1, (byte)2, new long[0]);
 925             RouteParameters route_params = RouteParameters.of(payee, 10000000, 42);
 926             Result_RouteLightningErrorZ route_res = UtilMethods.find_route(
 927                     peer1.chan_manager.get_our_node_id(), route_params, peer1.router,
 928                     peer1_chans, peer1.logger, ProbabilisticScorer.of(ProbabilisticScoringParameters.with_default(), peer1.router, peer1.logger).as_Score(), new byte[32]);
 929             assert route_res instanceof Result_RouteLightningErrorZ.Result_RouteLightningErrorZ_OK;
 930             Route route = ((Result_RouteLightningErrorZ.Result_RouteLightningErrorZ_OK) route_res).res;
 931             assert route.get_paths().length == 1;
 932             assert route.get_paths()[0].length == 1;
 933             assert route.get_paths()[0][0].get_fee_msat() == 10000000;
 934
 935             byte[] payment_id = new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31 };
 936             Result_NonePaymentSendFailureZ payment_res = peer1.chan_manager.send_payment(route, payment_hash, payment_secret, payment_id);
 937             assert payment_res instanceof Result_NonePaymentSendFailureZ.Result_NonePaymentSendFailureZ_OK;
 938
 939             RouteHop[][] hops = new RouteHop[1][1];
 940             byte[] hop_pubkey = new byte[33];
 941             hop_pubkey[0] = 3;
 942             hop_pubkey[1] = 42;
 943             NodeFeatures node_features = NodeFeatures.empty();
 944             ChannelFeatures channel_features = ChannelFeatures.empty();
 945             hops[0][0] = RouteHop.of(hop_pubkey, node_features, 42, channel_features, 100, 0);
 946             Route r2 = Route.of(hops, payee);
 947             payment_res = peer1.chan_manager.send_payment(r2, payment_hash, payment_secret, payment_id);
 948             assert payment_res instanceof Result_NonePaymentSendFailureZ.Result_NonePaymentSendFailureZ_Err;
 949         } else {
 950             Result_PaymentIdPaymentErrorZ send_res = peer1.payer.pay_invoice(((Result_InvoiceParseOrSemanticErrorZ.Result_InvoiceParseOrSemanticErrorZ_OK) parsed_invoice).res);
 951             assert send_res instanceof Result_PaymentIdPaymentErrorZ.Result_PaymentIdPaymentErrorZ_OK;
 952         }
 953
 954         if (reload_peers) {
 955             if (use_chan_manager_constructor) {
 956                 peer1.constructor.interrupt();
 957                 peer2.constructor.interrupt();
 958             } else if (use_nio_peer_handler) {
 959                 peer1.nio_peer_handler.interrupt();
 960                 peer2.nio_peer_handler.interrupt();
 961             }
 962             WeakReference<Peer> op1 = new WeakReference<Peer>(peer1);
 963             peer1 = new Peer(peer1);
 964             peer2 = new Peer(peer2);
 965             return new TestState(op1, peer1, peer2, b.getHash());
 966         }
 967         return new TestState(null, peer1, peer2, b.getHash());
 968     }
 969
 970     boolean cross_reload_ref_pollution = false;
 971     class TestState {
 972         private final WeakReference<Peer> ref_block;
 973         private final Peer peer1;
 974         private final Peer peer2;
 975         public Sha256Hash best_blockhash;
 976
 977         public TestState(WeakReference<Peer> ref_block, Peer peer1, Peer peer2, Sha256Hash best_blockhash) {
 978             this.ref_block = ref_block;
 979             this.peer1 = peer1;
 980             this.peer2 = peer2;
 981             this.best_blockhash = best_blockhash;
 982         }
 983     }
 984     void do_test_message_handler_b(TestState state) throws InterruptedException {
 985         GcCheck obj = new GcCheck();
 986         if (state.ref_block != null) {
 987             // Ensure the original peers get freed before we move on. Note that we have to be in a different function
 988             // scope to do so as the (at least current OpenJDK) JRE won't release anything created in the same scope.
 989             while (!cross_reload_ref_pollution && state.ref_block.get() != null) {
 990                 System.gc();
 991                 System.runFinalization();
 992             }
 993             connect_peers(state.peer1, state.peer2);
 994         }
 995
 996         Event[] events = state.peer2.get_manager_events(1, state.peer1, state.peer2);
 997         assert events[0] instanceof Event.PendingHTLCsForwardable;
 998         state.peer2.chan_manager.process_pending_htlc_forwards();
 999
1000         events = state.peer2.get_manager_events(1, state.peer1, state.peer2);
1001         assert events[0] instanceof Event.PaymentClaimable;
1002         assert ((Event.PaymentClaimable)events[0]).purpose instanceof PaymentPurpose.InvoicePayment;
1003         byte[] payment_preimage = ((PaymentPurpose.InvoicePayment)((Event.PaymentClaimable)events[0]).purpose).payment_preimage;
1004         assert !Arrays.equals(payment_preimage, new byte[32]);
1005         state.peer2.chan_manager.claim_funds(payment_preimage);
1006
1007         events = state.peer2.get_manager_events(1, state.peer1, state.peer2);
1008         assert events[0] instanceof Event.PaymentClaimed;
1009         assert ((Event.PaymentClaimed)events[0]).purpose instanceof PaymentPurpose.InvoicePayment;
1010         payment_preimage = ((PaymentPurpose.InvoicePayment)((Event.PaymentClaimed)events[0]).purpose).payment_preimage;
1011         assert !Arrays.equals(payment_preimage, new byte[32]);
1012
1013         events = state.peer1.get_manager_events(2, state.peer1, state.peer2);
1014         assert events[0] instanceof Event.PaymentSent;
1015         assert Arrays.equals(((Event.PaymentSent) events[0]).payment_preimage, payment_preimage);
1016         assert events[1] instanceof Event.PaymentPathSuccessful;
1017         assert Arrays.equals(((Event.PaymentPathSuccessful) events[1]).payment_hash, ((Event.PaymentSent) events[0]).payment_hash);
1018
1019         if (use_nio_peer_handler) {
1020             // We receive PaymentSent immediately upon receipt of the payment preimage, but we expect to not have an
1021             // HTLC transaction to broadcast below, which requires a bit more time to fully complete the
1022             // commitment-transaction-update dance between both peers.
1023             Thread.sleep(100);
1024         }
1025
1026         if (state.peer1.chain_monitor != null) {
1027             Balance[] peer1_balances = state.peer1.chain_monitor.get_claimable_balances(state.peer1.chan_manager.list_channels());
1028             assert peer1_balances.length == 0;
1029             Balance[] peer2_balances = state.peer2.chain_monitor.get_claimable_balances(state.peer2.chan_manager.list_channels());
1030             assert peer2_balances.length == 0;
1031         }
1032
1033         ChannelDetails[] peer1_chans = state.peer1.chan_manager.list_channels();
1034
1035         if (nice_close) {
1036             Result_NoneAPIErrorZ close_res = state.peer1.chan_manager.close_channel(peer1_chans[0].get_channel_id(), state.peer2.node_id);
1037             assert close_res instanceof Result_NoneAPIErrorZ.Result_NoneAPIErrorZ_OK;
1038             maybe_exchange_peer_messages(state.peer1, state.peer2);
1039             synchronized (state.peer1.broadcast_set) {
1040                 while (state.peer1.broadcast_set.size() != 1) state.peer1.broadcast_set.wait();
1041             }
1042             synchronized (state.peer2.broadcast_set) {
1043                 while (state.peer2.broadcast_set.size() != 1) state.peer2.broadcast_set.wait();
1044             }
1045         } else {
1046             state.peer1.chan_manager.force_close_all_channels_broadcasting_latest_txn();
1047             maybe_exchange_peer_messages(state.peer1, state.peer2);
1048             synchronized (state.peer1.broadcast_set) {
1049                 while (state.peer1.broadcast_set.size() != 1) state.peer1.broadcast_set.wait();
1050             }
1051             synchronized (state.peer2.broadcast_set) {
1052                 while (state.peer2.broadcast_set.size() != 1) state.peer2.broadcast_set.wait();
1053             }
1054         }
1055
1056         assert state.peer1.broadcast_set.size() == 1;
1057         assert state.peer2.broadcast_set.size() == 1;
1058
1059         events = state.peer2.get_manager_events(1, state.peer1, state.peer2);
1060         assert events[0] instanceof Event.ChannelClosed;
1061         events = state.peer1.get_manager_events(1, state.peer1, state.peer2);
1062         assert events[0] instanceof Event.ChannelClosed;
1063
1064         if (state.peer1.chain_monitor != null) {
1065             Balance[] peer1_balances = state.peer1.chain_monitor.get_claimable_balances(state.peer1.chan_manager.list_channels());
1066             assert peer1_balances.length == 1;
1067             for (Balance bal : peer1_balances) {
1068                 assert bal instanceof Balance.ClaimableOnChannelClose;
1069                 long expected_tx_fee = 183;
1070                 assert ((Balance.ClaimableOnChannelClose) bal).claimable_amount_satoshis == 100000 - 1 - 10000 - expected_tx_fee;
1071             }
1072             Balance[] peer2_balances = state.peer2.chain_monitor.get_claimable_balances(state.peer2.chan_manager.list_channels());
1073             assert peer2_balances.length == 1;
1074             for (Balance bal : peer2_balances) {
1075                 assert bal instanceof Balance.ClaimableOnChannelClose;
1076                 assert ((Balance.ClaimableOnChannelClose) bal).claimable_amount_satoshis == 10000 + 1;
1077             }
1078         }
1079
1080         if (!nice_close) {
1081             NetworkParameters bitcoinj_net = NetworkParameters.fromID(NetworkParameters.ID_MAINNET);
1082             Transaction tx = new Transaction(bitcoinj_net, state.peer1.broadcast_set.getFirst());
1083             Block b = new Block(bitcoinj_net, 2, state.best_blockhash, Sha256Hash.ZERO_HASH, 42, 0, 0,
1084                     Arrays.asList(new Transaction[]{tx}));
1085             TwoTuple_TxidCVec_C2Tuple_u32TxOutZZZ[] watch_outputs = state.peer2.connect_block(b, 10, 1);
1086             if (watch_outputs != null) { // We only process watch_outputs manually when we use a manually-build Watch impl
1087                 assert watch_outputs.length == 1;
1088                 assert Arrays.equals(watch_outputs[0].get_a(), tx.getTxId().getReversedBytes());
1089                 assert watch_outputs[0].get_b().length == 2;
1090                 assert watch_outputs[0].get_b()[0].get_a() == 0;
1091                 assert watch_outputs[0].get_b()[1].get_a() == 1;
1092             }
1093
1094             for (int i = 11; i < 21; i++) {
1095                 b = new Block(bitcoinj_net, 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, new ArrayList<>());
1096                 state.peer2.connect_block(b, i, 0);
1097             }
1098
1099             Event[] broadcastable_event = state.peer2.get_monitor_events(1);
1100             for (ChannelMonitor mon : state.peer2.monitors.values()) {
1101                 // This used to be buggy and double-free, so go ahead and fetch them!
1102                 byte[][] txn = mon.get_latest_holder_commitment_txn(state.peer2.logger);
1103             }
1104             assert broadcastable_event.length == 1;
1105             assert broadcastable_event[0] instanceof Event.SpendableOutputs;
1106             if (state.peer2.explicit_keys_manager != null) {
1107                 TxOut[] additional_outputs = new TxOut[]{new TxOut(420, new byte[]{0x42})};
1108                 Result_TransactionNoneZ tx_res = state.peer2.explicit_keys_manager.spend_spendable_outputs(((Event.SpendableOutputs) broadcastable_event[0]).outputs, additional_outputs, new byte[]{0x00}, 253);
1109                 assert tx_res instanceof Result_TransactionNoneZ.Result_TransactionNoneZ_OK;
1110                 Transaction built_tx = new Transaction(bitcoinj_net, ((Result_TransactionNoneZ.Result_TransactionNoneZ_OK) tx_res).res);
1111                 assert built_tx.getOutputs().size() == 2;
1112                 assert Arrays.equals(built_tx.getOutput(1).getScriptBytes(), new byte[]{0x00});
1113                 assert Arrays.equals(built_tx.getOutput(0).getScriptBytes(), new byte[]{0x42});
1114                 assert built_tx.getOutput(0).getValue().value == 420;
1115             }
1116         }
1117
1118         // Test exchanging a custom message (note that ChannelManagerConstructor) always loads an IgnorimgMessageHandler
1119         // so we cannot exchange custom messages with it
1120         if (!use_chan_manager_constructor) {
1121             byte[] custom_message_bytes = new byte[]{0x42, 0x44, 0x43, 0x00};
1122             synchronized(state.peer1.custom_messages_to_send) {
1123                 state.peer1.custom_messages_to_send.add(custom_message_bytes);
1124             }
1125             state.peer1.peer_manager.process_events();
1126             synchronized (state.peer2.received_custom_messages) {
1127                 while (true) {
1128                     if (state.peer2.received_custom_messages.isEmpty()) {
1129                         state.peer2.received_custom_messages.wait();
1130                         continue;
1131                     }
1132                     assert state.peer2.received_custom_messages.size() == 1;
1133                     assert Arrays.equals(state.peer2.received_custom_messages.get(0), custom_message_bytes);
1134                     break;
1135                 }
1136             }
1137         }
1138
1139         if (use_nio_peer_handler) {
1140             state.peer1.peer_manager.disconnect_by_node_id(state.peer2.chan_manager.get_our_node_id(), false);
1141             while (state.peer1.peer_manager.get_peer_node_ids().length != 0) Thread.yield();
1142             while (state.peer2.peer_manager.get_peer_node_ids().length != 0) Thread.yield();
1143             state.peer1.nio_peer_handler.interrupt();
1144             state.peer2.nio_peer_handler.interrupt();
1145         }
1146
1147         state.peer1.get_monitor_events(0);
1148         state.peer2.get_monitor_events(0);
1149
1150         if (use_chan_manager_constructor) {
1151             state.peer1.constructor.interrupt();
1152             state.peer2.constructor.interrupt();
1153         }
1154
1155         t.interrupt();
1156
1157         if (state.peer1.router != null)
1158             state.peer1.router.write();
1159
1160         // Construct the only Option_Enum::Variant(OpaqueStruct) we have in the codebase as this used to cause double-frees:
1161         byte[] serd = new byte[] {(byte)0xd9,(byte)0x77,(byte)0xcb,(byte)0x9b,(byte)0x53,(byte)0xd9,(byte)0x3a,(byte)0x6f,(byte)0xf6,(byte)0x4b,(byte)0xb5,(byte)0xf1,(byte)0xe1,(byte)0x58,(byte)0xb4,(byte)0x09,(byte)0x4b,(byte)0x66,(byte)0xe7,(byte)0x98,(byte)0xfb,(byte)0x12,(byte)0x91,(byte)0x11,(byte)0x68,(byte)0xa3,(byte)0xcc,(byte)0xdf,(byte)0x80,(byte)0xa8,(byte)0x30,(byte)0x96,(byte)0x34,(byte)0x0a,(byte)0x6a,(byte)0x95,(byte)0xda,(byte)0x0a,(byte)0xe8,(byte)0xd9,(byte)0xf7,(byte)0x76,(byte)0x52,(byte)0x8e,(byte)0xec,(byte)0xdb,(byte)0xb7,(byte)0x47,(byte)0xeb,(byte)0x6b,(byte)0x54,(byte)0x54,(byte)0x95,(byte)0xa4,(byte)0x31,(byte)0x9e,(byte)0xd5,(byte)0x37,(byte)0x8e,(byte)0x35,(byte)0xb2,(byte)0x1e,(byte)0x07,(byte)0x3a,(byte)0x00,(byte)0x00,(byte)0x00,(byte)0x00,(byte)0x01,(byte)0x19,(byte)0xd6,(byte)0x68,(byte)0x9c,(byte)0x08,(byte)0x5a,(byte)0xe1,(byte)0x65,(byte)0x83,(byte)0x1e,(byte)0x93,(byte)0x4f,(byte)0xf7,(byte)0x63,(byte)0xae,(byte)0x46,(byte)0xa2,(byte)0xa6,(byte)0xc1,(byte)0x72,(byte)0xb3,(byte)0xf1,(byte)0xb6,(byte)0x0a,(byte)0x8c,(byte)0xe2,(byte)0x6f,(byte)0x00,(byte)0x08,(byte)0x3a,(byte)0x84,(byte)0x00,(byte)0x00,(byte)0x03,(byte)0x4d,(byte)0x01,(byte)0x34,(byte)0x13,(byte)0xa7,(byte)0x00,(byte)0x00,(byte)0x00,(byte)0x90,(byte)0x00,(byte)0x00,(byte)0x00,(byte)0x00,(byte)0x00,(byte)0x0f,(byte)0x42,(byte)0x40,(byte)0x00,(byte)0x00,(byte)0x27,(byte)0x10,(byte)0x00,(byte)0x00,(byte)0x00,(byte)0x14,(byte)0xde,(byte)0xad,(byte)0xbe,(byte)0xef,(byte)0x42,(byte)0x42,(byte)0x42,(byte)0x42};
1162         Result_ChannelUpdateDecodeErrorZ upd_msg = ChannelUpdate.read(serd);
1163         assert upd_msg instanceof Result_ChannelUpdateDecodeErrorZ.Result_ChannelUpdateDecodeErrorZ_OK;
1164         assert ((Result_ChannelUpdateDecodeErrorZ.Result_ChannelUpdateDecodeErrorZ_OK) upd_msg).res.get_contents().get_htlc_maximum_msat() == 0xdeadbeef42424242L;
1165         Option_NetworkUpdateZ upd = Option_NetworkUpdateZ.some(NetworkUpdate.channel_update_message(((Result_ChannelUpdateDecodeErrorZ.Result_ChannelUpdateDecodeErrorZ_OK) upd_msg).res));
1166     }
1167
1168     java.util.LinkedList<WeakReference<Object>> must_free_objs = new java.util.LinkedList();
1169     int gc_count = 0;
1170     int gc_exp_count = 0;
1171     class GcCheck {
1172         GcCheck() { gc_exp_count += 1; }
1173         @Override
1174         protected void finalize() throws Throwable {
1175             gc_count += 1;
1176             super.finalize();
1177         }
1178     }
1179 }
1180 public class HumanObjectPeerTest {
1181     static HumanObjectPeerTestInstance do_test_run(boolean nice_close, boolean use_km_wrapper, boolean use_manual_watch, boolean reload_peers, boolean break_cross_peer_refs, boolean nio_peer_handler, boolean use_ignoring_routing_handler, boolean use_chan_manager_constructor, boolean use_invoice_payer) throws InterruptedException {
1182         HumanObjectPeerTestInstance instance = new HumanObjectPeerTestInstance(nice_close, use_km_wrapper, use_manual_watch, reload_peers, break_cross_peer_refs, nio_peer_handler, !nio_peer_handler, use_ignoring_routing_handler, use_chan_manager_constructor, use_invoice_payer);
1183         HumanObjectPeerTestInstance.TestState state = instance.do_test_message_handler();
1184         instance.do_test_message_handler_b(state);
1185         return instance;
1186     }
1187     static void do_test(boolean nice_close, boolean use_km_wrapper, boolean use_manual_watch, boolean reload_peers, boolean break_cross_peer_refs, boolean nio_peer_handler, boolean use_ignoring_routing_handler, boolean use_chan_manager_constructor, boolean use_invoice_payer) throws InterruptedException {
1188         HumanObjectPeerTestInstance instance = do_test_run(nice_close, use_km_wrapper, use_manual_watch, reload_peers, break_cross_peer_refs, nio_peer_handler, use_ignoring_routing_handler, use_chan_manager_constructor, use_invoice_payer);
1189         while (instance.gc_count != instance.gc_exp_count) {
1190             System.gc();
1191             System.runFinalization();
1192         }
1193         for (WeakReference<Object> o : instance.must_free_objs)
1194             assert o.get() == null;
1195     }
1196     public static final int TEST_ITERATIONS = (1 << 9);
1197     public static void do_test_message_handler(IntConsumer statusFunction) throws InterruptedException {
1198         Thread gc_thread = new Thread(() -> {
1199             while (true) {
1200                 System.gc();
1201                 System.runFinalization();
1202                 try { Thread.sleep(0, 1); } catch (InterruptedException e) { break; }
1203             }
1204         }, "Test GC Thread");
1205         gc_thread.start();
1206         for (int i = 0; i < TEST_ITERATIONS; i++) {
1207             boolean nice_close =                   (i & (1 << 0)) != 0;
1208             boolean use_km_wrapper =               (i & (1 << 1)) != 0;
1209             boolean use_manual_watch =             (i & (1 << 2)) != 0;
1210             boolean reload_peers =                 (i & (1 << 3)) != 0;
1211             boolean break_cross_refs =             (i & (1 << 4)) != 0;
1212             boolean use_ignoring_routing_handler = (i & (1 << 5)) != 0;
1213             boolean use_chan_manager_constructor = (i & (1 << 6)) != 0;
1214             boolean use_invoice_payer =            (i & (1 << 7)) != 0;
1215             boolean nio_peer_handler =             (i & (1 << 8)) != 0;
1216             if (break_cross_refs && !reload_peers) {
1217                 // There are no cross refs to break without reloading peers.
1218                 continue;
1219             }
1220             if (use_chan_manager_constructor && (use_manual_watch || !nio_peer_handler)) {
1221                 // ChannelManagerConstructor requires a ChainMonitor as the Watch and creates a NioPeerHandler for us.
1222                 continue;
1223             }
1224             if (!use_chan_manager_constructor && (use_ignoring_routing_handler)) {
1225                 // We rely on the ChannelManagerConstructor to convert null into an IgnoringMessageHandler, so don't
1226                 // try to run with an IgnoringMessageHandler unless we're also using a ChannelManagerConstructor.
1227                 continue;
1228             }
1229             if (use_chan_manager_constructor && use_ignoring_routing_handler && use_invoice_payer) {
1230                 // As documented on ChannelManagerConstructor, if we provide a `null` NetworkGraph (because we want to
1231                 // use an IgnoringMessageHandler), no InvoicePayer will be constructored for us, thus we cannot use an
1232                 // InvoicePayer to send payments in this case.
1233                 continue;
1234             }
1235             statusFunction.accept(i);
1236             do_test(nice_close, use_km_wrapper, use_manual_watch, reload_peers, break_cross_refs, nio_peer_handler, use_ignoring_routing_handler, use_chan_manager_constructor, use_invoice_payer);
1237         }
1238         gc_thread.interrupt();
1239         gc_thread.join();
1240     }
1241     @Test
1242     public void test_message_handler() throws InterruptedException {
1243         do_test_message_handler(i -> System.err.println("Running test with flags " + i));
1244     }
1245
1246     // This is used in the test jar to test the built jar is runnable
1247     public static void main(String[] args) {
1248         try {
1249             do_test_message_handler(i -> System.err.println("Running test with flags " + i));
1250         } catch (Exception e) {
1251             System.err.println("Caught exception:");
1252             System.err.println(e);
1253             System.exit(1);
1254         }
1255     }
1256 }