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

   1 package org.ldk;
   2
   3 import org.bitcoinj.base.BitcoinNetwork;
   4 import org.bitcoinj.base.Coin;
   5 import org.bitcoinj.base.Sha256Hash;
   6 import org.bitcoinj.core.*;
   7 import org.bitcoinj.params.BitcoinNetworkParams;
   8 import org.bitcoinj.script.Script;
   9 import org.junit.jupiter.api.Test;
  10 import org.ldk.batteries.ChannelManagerConstructor;
  11 import org.ldk.batteries.NioPeerHandler;
  12 import org.ldk.enums.*;
  13 import org.ldk.enums.Currency;
  14 import org.ldk.structs.*;
  15 import org.ldk.util.UInt128;
  16 import org.ldk.util.UInt5;
  17
  18 import java.io.IOException;
  19 import java.lang.ref.WeakReference;
  20 import java.net.InetSocketAddress;
  21 import java.util.*;
  22 import java.util.function.IntConsumer;
  23
  24 class HumanObjectPeerTestInstance {
  25     private final boolean nice_close;
  26     private final boolean use_km_wrapper;
  27     private final boolean use_manual_watch;
  28     private final boolean reload_peers;
  29     private final boolean break_cross_peer_refs;
  30     private final boolean use_nio_peer_handler;
  31     private final boolean use_filter;
  32     private final boolean use_ignore_handler;
  33     private final boolean use_chan_manager_constructor;
  34     private final boolean use_invoice_payer;
  35     TxOut gossip_txout = null;
  36
  37     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) {
  38         this.nice_close = nice_close;
  39         this.use_km_wrapper = use_km_wrapper;
  40         this.use_manual_watch = use_manual_watch;
  41         this.reload_peers = reload_peers;
  42         this.break_cross_peer_refs = break_cross_peer_refs;
  43         this.use_nio_peer_handler = use_nio_peer_handler;
  44         this.use_filter = use_filter;
  45         this.use_ignore_handler = use_ignore_handler;
  46         this.use_chan_manager_constructor = use_chan_manager_constructor;
  47         this.use_invoice_payer = use_invoice_payer;
  48     }
  49
  50     class Peer {
  51         NodeSigner manual_node_signer(KeysManager underlying_km) {
  52             NodeSigner underlying_ns = underlying_km.as_NodeSigner();
  53             must_free_objs.add(new WeakReference<>(underlying_ns));
  54             return NodeSigner.new_impl(new NodeSigner.NodeSignerInterface() {
  55                 @Override public byte[] get_inbound_payment_key_material() { return underlying_ns.get_inbound_payment_key_material(); }
  56                 @Override public Result_PublicKeyNoneZ get_node_id(Recipient recipient) { return underlying_ns.get_node_id(recipient); }
  57                 @Override public Result_ThirtyTwoBytesNoneZ ecdh(Recipient recipient, byte[] other_key, Option_BigEndianScalarZ tweak) {
  58                     return underlying_ns.ecdh(recipient, other_key, tweak);
  59                 }
  60                 @Override public Result_RecoverableSignatureNoneZ sign_invoice(byte[] hrp_bytes, UInt5[] invoice_data, Recipient recipient) {
  61                     return underlying_ns.sign_invoice(hrp_bytes, invoice_data, recipient);
  62                 }
  63                 @Override public Result_SchnorrSignatureNoneZ sign_bolt12_invoice_request(UnsignedInvoiceRequest invoice_request) {
  64                     return underlying_ns.sign_bolt12_invoice_request(invoice_request);
  65                 }
  66                 @Override public Result_SchnorrSignatureNoneZ sign_bolt12_invoice(UnsignedBolt12Invoice invoice) {
  67                     return underlying_ns.sign_bolt12_invoice(invoice);
  68                 }
  69                 @Override public Result_ECDSASignatureNoneZ sign_gossip_message(UnsignedGossipMessage msg) {
  70                     return underlying_ns.sign_gossip_message(msg);
  71                 }
  72             });
  73         }
  74         SignerProvider manual_signer_provider(KeysManager underlying_km) {
  75             SignerProvider underlying_sp = underlying_km.as_SignerProvider();
  76             must_free_objs.add(new WeakReference<>(underlying_sp));
  77             return SignerProvider.new_impl(new SignerProvider.SignerProviderInterface() {
  78                 @Override public Result_CVec_u8ZNoneZ get_destination_script() { return underlying_sp.get_destination_script(); }
  79                 @Override public Result_ShutdownScriptNoneZ get_shutdown_scriptpubkey() { return underlying_sp.get_shutdown_scriptpubkey(); }
  80                 @Override public byte[] generate_channel_keys_id(boolean inbound, long channel_value_satoshis, UInt128 user_channel_id) {
  81                     return underlying_sp.generate_channel_keys_id(inbound, channel_value_satoshis, user_channel_id);
  82                 }
  83                 @Override
  84                 public WriteableEcdsaChannelSigner derive_channel_signer(long channel_value_satoshis, byte[] channel_keys_id) {
  85                     WriteableEcdsaChannelSigner underlying_wecs = underlying_sp.derive_channel_signer(channel_value_satoshis, channel_keys_id);
  86                     EcdsaChannelSigner underlying_ecs = underlying_wecs.get_ecdsa_channel_signer();
  87                     ChannelSigner underlying_cs = underlying_ecs.get_channel_signer();
  88                     ChannelSigner.ChannelSignerInterface csi = new ChannelSigner.ChannelSignerInterface() {
  89                         @Override public byte[] get_per_commitment_point(long idx) { return underlying_cs.get_per_commitment_point(idx); }
  90                         @Override public byte[] release_commitment_secret(long idx) { return underlying_cs.release_commitment_secret(idx); }
  91                         @Override public Result_NoneNoneZ validate_holder_commitment(HolderCommitmentTransaction holder_tx, byte[][] preimages) {
  92                             return underlying_cs.validate_holder_commitment(holder_tx, preimages);
  93                         }
  94                         @Override public byte[] channel_keys_id() { return underlying_cs.channel_keys_id(); }
  95                         @Override public void provide_channel_parameters(ChannelTransactionParameters channel_parameters) {
  96                             underlying_cs.provide_channel_parameters(channel_parameters);
  97                         }
  98                     };
  99                     EcdsaChannelSigner.EcdsaChannelSignerInterface ecsi = new EcdsaChannelSigner.EcdsaChannelSignerInterface() {
 100                         @Override public Result_C2Tuple_ECDSASignatureCVec_ECDSASignatureZZNoneZ sign_counterparty_commitment(CommitmentTransaction commitment_tx, byte[][] preimages) {
 101                             return underlying_ecs.sign_counterparty_commitment(commitment_tx, preimages);
 102                         }
 103                         @Override public Result_NoneNoneZ validate_counterparty_revocation(long idx, byte[] secret) {
 104                             return underlying_ecs.validate_counterparty_revocation(idx, secret);
 105                         }
 106                         @Override public Result_C2Tuple_ECDSASignatureCVec_ECDSASignatureZZNoneZ sign_holder_commitment_and_htlcs(HolderCommitmentTransaction commitment_tx) {
 107                             return underlying_ecs.sign_holder_commitment_and_htlcs(commitment_tx);
 108                         }
 109                         @Override public Result_ECDSASignatureNoneZ sign_justice_revoked_output(byte[] justice_tx, long input, long amount, byte[] per_commitment_key) {
 110                             return underlying_ecs.sign_justice_revoked_output(justice_tx, input, amount, per_commitment_key);
 111                         }
 112                         @Override public Result_ECDSASignatureNoneZ sign_justice_revoked_htlc(byte[] justice_tx, long input, long amount, byte[] per_commitment_key, HTLCOutputInCommitment htlc) {
 113                             return underlying_ecs.sign_justice_revoked_htlc(justice_tx, input, amount, per_commitment_key, htlc);
 114                         }
 115                         @Override public Result_ECDSASignatureNoneZ sign_holder_htlc_transaction(byte[] htlc_tx, long input, HTLCDescriptor htlc_descriptor) {
 116                             return underlying_ecs.sign_holder_htlc_transaction(htlc_tx, input, htlc_descriptor);
 117                         }
 118                         @Override public Result_ECDSASignatureNoneZ sign_counterparty_htlc_transaction(byte[] htlc_tx, long input, long amount, byte[] per_commitment_point, HTLCOutputInCommitment htlc) {
 119                             return underlying_ecs.sign_counterparty_htlc_transaction(htlc_tx, input, amount, per_commitment_point, htlc);
 120                         }
 121                         @Override public Result_ECDSASignatureNoneZ sign_closing_transaction(ClosingTransaction closing_tx) {
 122                             return underlying_ecs.sign_closing_transaction(closing_tx);
 123                         }
 124                         @Override public Result_ECDSASignatureNoneZ sign_holder_anchor_input(byte[] anchor_tx, long input) {
 125                             return underlying_ecs.sign_holder_anchor_input(anchor_tx, input);
 126                         }
 127                         @Override public Result_ECDSASignatureNoneZ sign_channel_announcement_with_funding_key(UnsignedChannelAnnouncement msg) {
 128                             return underlying_ecs.sign_channel_announcement_with_funding_key(msg);
 129                         }
 130                     };
 131                     WriteableEcdsaChannelSigner.WriteableEcdsaChannelSignerInterface wecsi = new WriteableEcdsaChannelSigner.WriteableEcdsaChannelSignerInterface() {
 132                         @Override public byte[] write() { return underlying_wecs.write(); }
 133                     };
 134                     WriteableEcdsaChannelSigner resp = WriteableEcdsaChannelSigner.new_impl(wecsi, ecsi, csi, underlying_cs.get_pubkeys());
 135                     must_free_objs.add(new WeakReference<>(wecsi));
 136                     must_free_objs.add(new WeakReference<>(ecsi));
 137                     must_free_objs.add(new WeakReference<>(csi));
 138                     must_free_objs.add(new WeakReference<>(resp));
 139                     must_free_objs.add(new WeakReference<>(underlying_wecs));
 140                     must_free_objs.add(new WeakReference<>(underlying_ecs));
 141                     must_free_objs.add(new WeakReference<>(underlying_cs));
 142                     return resp;
 143                 }
 144
 145                 @Override
 146                 public Result_WriteableEcdsaChannelSignerDecodeErrorZ read_chan_signer(byte[] reader) {
 147                     return underlying_sp.read_chan_signer(reader);
 148                 }
 149             });
 150         }
 151
 152         Watch get_manual_watch() {
 153             Watch.WatchInterface watch_impl = new Watch.WatchInterface() {
 154                 public Result_ChannelMonitorUpdateStatusNoneZ watch_channel(OutPoint funding_txo, ChannelMonitor monitor) {
 155                     synchronized (monitors) {
 156                         assert monitors.put(Arrays.toString(funding_txo.get_txid()), monitor) == null;
 157                     }
 158                     return Result_ChannelMonitorUpdateStatusNoneZ.ok(ChannelMonitorUpdateStatus.LDKChannelMonitorUpdateStatus_Completed);
 159                 }
 160
 161                 public ChannelMonitorUpdateStatus update_channel(OutPoint funding_txo, ChannelMonitorUpdate update) {
 162                     synchronized (monitors) {
 163                         String txid = Arrays.toString(funding_txo.get_txid());
 164                         assert monitors.containsKey(txid);
 165                         Result_NoneNoneZ update_res = monitors.get(txid).update_monitor(update, tx_broadcaster, fee_estimator, logger);
 166                         assert update_res instanceof Result_NoneNoneZ.Result_NoneNoneZ_OK;
 167                     }
 168                     return ChannelMonitorUpdateStatus.LDKChannelMonitorUpdateStatus_Completed;
 169                 }
 170
 171                 @Override
 172                 public ThreeTuple_OutPointCVec_MonitorEventZPublicKeyZ[] release_pending_monitor_events() {
 173                     synchronized (monitors) {
 174                         assert monitors.size() <= 1;
 175                         for (ChannelMonitor mon : monitors.values()) {
 176                             ThreeTuple_OutPointCVec_MonitorEventZPublicKeyZ[] res = new ThreeTuple_OutPointCVec_MonitorEventZPublicKeyZ[1];
 177                             res[0] = ThreeTuple_OutPointCVec_MonitorEventZPublicKeyZ.of(mon.get_funding_txo().get_a(), mon.get_and_clear_pending_monitor_events(), mon.get_counterparty_node_id());
 178                             return res;
 179                         }
 180                     }
 181                     return new ThreeTuple_OutPointCVec_MonitorEventZPublicKeyZ[0];
 182                 }
 183             };
 184             Watch watch = Watch.new_impl(watch_impl);
 185             must_free_objs.add(new WeakReference<>(watch_impl));
 186             must_free_objs.add(new WeakReference<>(watch));
 187             return watch;
 188         }
 189
 190         UserConfig get_config() {
 191             ChannelHandshakeConfig channel_config = ChannelHandshakeConfig.with_default();
 192             channel_config.set_announced_channel(true);
 193             UserConfig config = UserConfig.with_default();
 194             config.set_channel_handshake_config(channel_config);
 195             return config;
 196         }
 197
 198         NioPeerHandler nio_peer_handler;
 199         short nio_port;
 200         final byte seed;
 201         final byte[] key_seed = new byte[32];
 202         final Logger logger;
 203         final FeeEstimator fee_estimator;
 204         final BroadcasterInterface tx_broadcaster;
 205         final KeysManager explicit_keys_manager;
 206         final NodeSigner node_signer;
 207         final SignerProvider signer_provider;
 208         final EntropySource entropy_source;
 209         final ChainMonitor chain_monitor;
 210         NetworkGraph net_graph;
 211         P2PGossipSync route_handler;
 212         final Watch chain_watch;
 213         final HashSet<String> filter_additions;
 214         Option_FilterZ filter;
 215         ChannelManager chan_manager;
 216         PeerManager peer_manager;
 217         final HashMap<String, ChannelMonitor> monitors; // Wow I forgot just how terrible Java is - we can't put a byte array here.
 218         byte[] node_id;
 219         byte[] connected_peer_node_id = null;
 220         final LinkedList<byte[]> broadcast_set = new LinkedList<>();
 221         final LinkedList<Event> pending_manager_events = new LinkedList<>();
 222         private final CustomMessageHandler custom_message_handler;
 223         final LinkedList<byte[]> received_custom_messages = new LinkedList<>();
 224         final LinkedList<byte[]> custom_messages_to_send = new LinkedList<>();
 225         ChannelManagerConstructor constructor = null;
 226         long network_graph_persists = 0;
 227         GcCheck obj = new GcCheck();
 228
 229         private ChannelMonitor test_mon_roundtrip(OutPoint expected_id, byte[] data) {
 230             // Because get_funding_txo() returns an OutPoint in a tuple that is a reference to an OutPoint inside the
 231             // ChannelMonitor, its a good test to ensure that the OutPoint isn't freed (or is cloned) before the
 232             // ChannelMonitor is. This used to be broken.
 233             Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ roundtrip_monitor = UtilMethods.C2Tuple_ThirtyTwoBytesChannelMonitorZ_read(data, this.entropy_source, this.signer_provider);
 234             assert roundtrip_monitor instanceof Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ.Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ_OK;
 235             must_free_objs.add(new WeakReference<>(roundtrip_monitor));
 236             TwoTuple_OutPointCVec_u8ZZ funding_txo = ((Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ.Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ_OK) roundtrip_monitor).res.get_b().get_funding_txo();
 237             must_free_objs.add(new WeakReference<>(funding_txo));
 238             System.gc(); System.runFinalization(); // Give the GC a chance to run.
 239             assert Arrays.equals(funding_txo.get_a().get_txid(), expected_id.get_txid());
 240             assert funding_txo.get_a().get_index() == expected_id.get_index();
 241             Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ roundtrip_two = UtilMethods.C2Tuple_ThirtyTwoBytesChannelMonitorZ_read(data, this.entropy_source, this.signer_provider);
 242             assert roundtrip_two instanceof Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ.Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ_OK;
 243             must_free_objs.add(new WeakReference<>(((Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ.Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ_OK) roundtrip_two).res.get_b()));
 244             must_free_objs.add(new WeakReference<>(((Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ.Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ_OK) roundtrip_two).res));
 245             must_free_objs.add(new WeakReference<>(roundtrip_two));
 246             return ((Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ.Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ_OK) roundtrip_two).res.get_b();
 247         }
 248
 249         private Peer(Object _dummy, byte seed) {
 250             logger = Logger.new_impl((org.ldk.structs.Record arg)->{
 251                 if (arg.get_level() == Level.LDKLevel_Error)
 252                     System.err.println(seed + ": " + arg.get_module_path() + " - " + arg.get_args());
 253                 else
 254                     System.out.println(seed + ": " + arg.get_module_path() + " - " + arg.get_args());
 255             });
 256             fee_estimator = FeeEstimator.new_impl((confirmation_target -> 253));
 257             tx_broadcaster = BroadcasterInterface.new_impl(txn -> {
 258                 synchronized (broadcast_set) {
 259                     for (byte[] tx : txn){
 260                         broadcast_set.add(tx);
 261                     }
 262                     broadcast_set.notifyAll();
 263                 }
 264             });
 265             monitors = new HashMap<>();
 266             this.seed = seed;
 267             Persist persister = Persist.new_impl(new Persist.PersistInterface() {
 268                 @Override
 269                 public ChannelMonitorUpdateStatus persist_new_channel(OutPoint id, ChannelMonitor data, MonitorUpdateId update_id) {
 270                     synchronized (monitors) {
 271                         String key = Arrays.toString(id.to_channel_id());
 272                         ChannelMonitor res = test_mon_roundtrip(id, data.write());
 273                         assert monitors.put(key, res) == null;
 274                     }
 275                     return ChannelMonitorUpdateStatus.LDKChannelMonitorUpdateStatus_Completed;
 276                 }
 277
 278                 @Override
 279                 public ChannelMonitorUpdateStatus update_persisted_channel(OutPoint id, ChannelMonitorUpdate update, ChannelMonitor data, MonitorUpdateId update_id) {
 280                     synchronized (monitors) {
 281                         String key = Arrays.toString(id.to_channel_id());
 282                         ChannelMonitor res = test_mon_roundtrip(id, data.write());
 283                         // Note that we use a serialization-roundtrip copy of data here, not the original, as this can
 284                         // expose the JVM JIT bug where it finalize()s things still being called.
 285                         assert monitors.put(key, res) != null;
 286                     }
 287                     return ChannelMonitorUpdateStatus.LDKChannelMonitorUpdateStatus_Completed;
 288                 }
 289             });
 290
 291             filter_additions = new HashSet<>();
 292             if (use_filter) {
 293                 this.filter = Option_FilterZ.some(Filter.new_impl(new Filter.FilterInterface() {
 294                     @Override public void register_tx(byte[] txid, byte[] script_pubkey) {
 295                         filter_additions.add(Arrays.toString(txid));
 296                     }
 297                     @Override public void register_output(WatchedOutput output) {
 298                         filter_additions.add(Arrays.toString(output.get_outpoint().get_txid()) + ":" + output.get_outpoint().get_index());
 299                     }
 300                 }));
 301             } else {
 302                 this.filter = Option_FilterZ.none();
 303             }
 304
 305             if (use_manual_watch) {
 306                 chain_watch = get_manual_watch();
 307                 chain_monitor = null;
 308             } else {
 309                 chain_monitor = ChainMonitor.of(filter, tx_broadcaster, logger, fee_estimator, persister);
 310                 chain_watch = chain_monitor.as_Watch();
 311             }
 312
 313             for (byte i = 0; i < 32; i++) {
 314                 key_seed[i] = (byte) (i ^ seed);
 315             }
 316             KeysManager keys = KeysManager.of(key_seed, System.currentTimeMillis() / 1000, (int) (System.currentTimeMillis() * 1000));
 317             if (use_km_wrapper) {
 318                 this.signer_provider = manual_signer_provider(keys);
 319                 this.node_signer = manual_node_signer(keys);
 320                 this.entropy_source = EntropySource.new_impl(new EntropySource.EntropySourceInterface() {
 321                     @Override public byte[] get_secure_random_bytes() { return keys.as_EntropySource().get_secure_random_bytes(); }
 322                 });
 323                 this.explicit_keys_manager = null;
 324             } else {
 325                 this.signer_provider = keys.as_SignerProvider();
 326                 this.entropy_source = keys.as_EntropySource();
 327                 this.node_signer = keys.as_NodeSigner();
 328                 this.explicit_keys_manager = keys;
 329             }
 330
 331             this.custom_message_handler = CustomMessageHandler.new_impl(new CustomMessageHandler.CustomMessageHandlerInterface() {
 332                 @Override
 333                 public Result_NoneLightningErrorZ handle_custom_message(Type msg, byte[] sender_node_id) {
 334                     synchronized (received_custom_messages) {
 335                         received_custom_messages.add(msg.write());
 336                         received_custom_messages.notifyAll();
 337                     }
 338                     return Result_NoneLightningErrorZ.ok();
 339                 }
 340
 341                 @Override
 342                 public TwoTuple_PublicKeyTypeZ[] get_and_clear_pending_msg() {
 343                     byte[][] bytes;
 344                     synchronized (custom_messages_to_send) {
 345                         bytes = custom_messages_to_send.toArray(new byte[0][0]);
 346                         custom_messages_to_send.clear();
 347                     }
 348                     TwoTuple_PublicKeyTypeZ[] ret = new TwoTuple_PublicKeyTypeZ[bytes.length];
 349                     for (int i = 0; i < bytes.length; i++) {
 350                         final int msg_idx = i;
 351                         ret[i] = TwoTuple_PublicKeyTypeZ.of(connected_peer_node_id, Type.new_impl(new Type.TypeInterface() {
 352                             @Override public short type_id() { return 4096; }
 353                             @Override public String debug_str() { return "Custom Java Message"; }
 354                             @Override public byte[] write() { return bytes[msg_idx]; }
 355                         }));
 356                     }
 357                     return ret;
 358                 }
 359                 @Override public NodeFeatures provided_node_features() {
 360                     return NodeFeatures.empty();
 361                 }
 362                 @Override public InitFeatures provided_init_features(byte[] their_node_id) {
 363                     return InitFeatures.empty();
 364                 }
 365             }, (message_type, buffer) -> {
 366                 assert message_type == 4096;
 367                 return Result_COption_TypeZDecodeErrorZ.ok(Option_TypeZ.some(Type.new_impl(new Type.TypeInterface() {
 368                     @Override public short type_id() { return 4096; }
 369                     @Override public String debug_str() { return "Custom Java-Decoded Message"; }
 370                     @Override public byte[] write() { return buffer; }
 371                 })));
 372             });
 373         }
 374         private void bind_nio() {
 375             if (!use_nio_peer_handler) return;
 376             if (use_chan_manager_constructor) {
 377                 this.nio_peer_handler = this.constructor.nio_peer_handler;
 378             } else {
 379                 try { this.nio_peer_handler = new NioPeerHandler(peer_manager); } catch (IOException e) { assert false; }
 380             }
 381             for (short i = 10_000; true; i++) {
 382                 try {
 383                     nio_peer_handler.bind_listener(new InetSocketAddress("127.0.0.1", i));
 384                     nio_port = i;
 385                     break;
 386                 } catch (IOException e) { assert i < 10_500; }
 387             }
 388         }
 389         private void setup_route_handler() {
 390             this.route_handler = P2PGossipSync.of(this.net_graph,
 391                 Option_UtxoLookupZ.some(UtxoLookup.new_impl((genesis_hash, short_channel_id) -> UtxoResult.sync(Result_TxOutUtxoLookupErrorZ.ok(gossip_txout)))), this.logger);
 392         }
 393         Peer(byte seed) {
 394             this(null, seed);
 395             this.net_graph = NetworkGraph.of(Network.LDKNetwork_Bitcoin, this.logger);
 396             this.setup_route_handler();
 397
 398             if (use_chan_manager_constructor) {
 399                 this.constructor = new ChannelManagerConstructor(Network.LDKNetwork_Bitcoin, get_config(), new byte[32], 0,
 400                         this.explicit_keys_manager.as_EntropySource(), this.explicit_keys_manager.as_NodeSigner(), this.explicit_keys_manager.as_SignerProvider(),
 401                         this.fee_estimator, this.chain_monitor, this.net_graph,
 402                         ProbabilisticScoringDecayParameters.with_default(), ProbabilisticScoringFeeParameters.with_default(),
 403                         (ChannelManagerConstructor.RouterWrapper)
 404                             (payer_node_id, route_params, first_hops, inflight_htlcs, payment_hash, payment_id, default_router) -> {
 405                                 assert payment_hash != null && payment_id != null;
 406                                 Router r = default_router.as_Router();
 407                                 must_free_objs.add(new WeakReference<>(r));
 408                                 return r.find_route_with_id(payer_node_id, route_params, first_hops, inflight_htlcs, payment_hash, payment_id);
 409                             },
 410                         this.tx_broadcaster, this.logger);
 411                 constructor.chain_sync_completed(new ChannelManagerConstructor.EventHandler() {
 412                     @Override public void handle_event(Event event) {
 413                         synchronized (pending_manager_events) {
 414                             pending_manager_events.add(event);
 415                             pending_manager_events.notifyAll();
 416                         }
 417                     }
 418                     @Override public void persist_manager(byte[] channel_manager_bytes) { assert channel_manager_bytes.length > 1; }
 419                     @Override public void persist_network_graph(byte[] graph_bytes) { assert graph_bytes.length > 1; network_graph_persists += 1; }
 420                     @Override public void persist_scorer(byte[] scorer_bytes) { assert scorer_bytes.length > 1; }
 421                 }, !use_ignore_handler);
 422                 this.chan_manager = constructor.channel_manager;
 423                 this.peer_manager = constructor.peer_manager;
 424                 must_free_objs.add(new WeakReference<>(this.chan_manager));
 425             } else {
 426                 Router router = Router.new_impl(new Router.RouterInterface() {
 427                     @Override
 428                     public Result_RouteLightningErrorZ find_route_with_id(byte[] payer, RouteParameters route_params, ChannelDetails[] first_hops, InFlightHtlcs inflight_htlcs, byte[] _payment_hash, byte[] _payment_id) {
 429                         return find_route(payer, route_params, first_hops, inflight_htlcs);
 430                     }
 431
 432                     @Override
 433                     public Result_RouteLightningErrorZ find_route(byte[] payer, RouteParameters params, ChannelDetails[] first_hops, InFlightHtlcs inflight_htlcs) {
 434                         while (true) {
 435                             try (ReadOnlyNetworkGraph graph = net_graph.read_only()) {
 436                                 assert graph.channel(424242) == null;
 437                                 long[] channels = graph.list_channels();
 438                                 if (channels.length != 1) {
 439                                     // If we're using a NioPeerHandler, the handling of announcement signatures and
 440                                     // channel broadcasting may be done async, so just wait until the channel shows up.
 441                                     assert use_nio_peer_handler;
 442                                     continue;
 443                                 }
 444                                 ChannelInfo chan = graph.channel(channels[0]);
 445                                 assert Arrays.equals(chan.get_node_one().as_slice(), chan.get_node_one().write());
 446                                 assert Arrays.equals(chan.get_node_one().as_slice(), chan_manager.get_our_node_id()) ||
 447                                         Arrays.equals(chan.get_node_two().as_slice(), chan_manager.get_our_node_id());
 448                                 break;
 449                             }
 450                         }
 451                         return UtilMethods.find_route(payer, params, net_graph, first_hops, logger, ScoreLookUp.new_impl(new ScoreLookUp.ScoreLookUpInterface() {
 452                             @Override public long channel_penalty_msat(long short_channel_id, NodeId source, NodeId target, ChannelUsage usage, ProbabilisticScoringFeeParameters params) { return 0; }
 453                         }), ProbabilisticScoringFeeParameters.with_default(), new byte[32]);
 454                     }
 455                 });
 456                 ChainParameters params = ChainParameters.of(Network.LDKNetwork_Bitcoin, BestBlock.of(new byte[32], 0));
 457                 this.chan_manager = ChannelManager.of(this.fee_estimator, chain_watch, tx_broadcaster, router, logger,
 458                     this.entropy_source, this.node_signer, this.signer_provider, get_config(), params,
 459                         (int)(System.currentTimeMillis() / 1000));
 460                 this.peer_manager = PeerManager.of(chan_manager.as_ChannelMessageHandler(), route_handler.as_RoutingMessageHandler(),
 461                         IgnoringMessageHandler.of().as_OnionMessageHandler(), this.custom_message_handler, 0xdeadbeef,
 462                         this.entropy_source.get_secure_random_bytes(), logger, this.node_signer);
 463            }
 464
 465             this.node_id = chan_manager.get_our_node_id();
 466             this.filter = null;
 467             bind_nio();
 468             System.gc();
 469         }
 470
 471         Object ptr_to;
 472         Peer(Peer orig) {
 473             this(null, orig.seed);
 474             if (use_chan_manager_constructor) {
 475                 byte[][] monitors = {orig.monitors.values().stream().iterator().next().write()};
 476                 byte[] serialized = orig.chan_manager.write();
 477                 byte[] serialized_graph = orig.net_graph.write();
 478                 byte[] serialized_scorer = orig.constructor.scorer.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                     this.constructor = new ChannelManagerConstructor(serialized, monitors, get_config(),
 485                         this.explicit_keys_manager.as_EntropySource(), this.explicit_keys_manager.as_NodeSigner(), this.explicit_keys_manager.as_SignerProvider(),
 486                         this.fee_estimator, this.chain_monitor, filter_nullable,
 487                             serialized_graph, ProbabilisticScoringDecayParameters.with_default(),
 488                             ProbabilisticScoringFeeParameters.with_default(), serialized_scorer, null,
 489                             this.tx_broadcaster, this.logger);
 490                     try {
 491                         // Test that ChannelManagerConstructor correctly rejects duplicate ChannelMonitors
 492                         byte[][] monitors_dupd = new byte[2][];
 493                         monitors_dupd[0] = monitors[0];
 494                         monitors_dupd[1] = monitors[0];
 495                         ChannelManagerConstructor constr = new ChannelManagerConstructor(serialized, monitors_dupd, get_config(),
 496                             this.explicit_keys_manager.as_EntropySource(), this.explicit_keys_manager.as_NodeSigner(), this.explicit_keys_manager.as_SignerProvider(),
 497                             this.fee_estimator, this.chain_monitor, filter_nullable,
 498                                 serialized_graph, ProbabilisticScoringDecayParameters.with_default(),
 499                                 ProbabilisticScoringFeeParameters.with_default(), serialized_scorer, null,
 500                                 this.tx_broadcaster, this.logger);
 501                         assert false;
 502                     } catch (ChannelManagerConstructor.InvalidSerializedDataException e) {}
 503                     this.net_graph = this.constructor.net_graph;
 504                     setup_route_handler();
 505                     constructor.chain_sync_completed(new ChannelManagerConstructor.EventHandler() {
 506                         @Override public void handle_event(Event event) {
 507                             synchronized (pending_manager_events) {
 508                                 pending_manager_events.add(event);
 509                                 pending_manager_events.notifyAll();
 510                             }
 511                         }
 512                         @Override public void persist_manager(byte[] channel_manager_bytes) { assert channel_manager_bytes.length > 1; }
 513                         @Override public void persist_network_graph(byte[] graph_bytes) { assert graph_bytes.length > 1; network_graph_persists += 1; }
 514                         @Override public void persist_scorer(byte[] scorer_bytes) { assert scorer_bytes.length > 1; }
 515                     }, !use_ignore_handler);
 516                     this.chan_manager = constructor.channel_manager;
 517                     this.peer_manager = constructor.peer_manager;
 518                     must_free_objs.add(new WeakReference<>(this.chan_manager));
 519                     // If we are using a ChannelManagerConstructor, we may have pending events waiting on the old peer
 520                     // which have been removed from the ChannelManager but which we still need to handle.
 521                     this.pending_manager_events.addAll(orig.pending_manager_events);
 522                     if (!this.pending_manager_events.isEmpty()) {
 523                         // However, this implies cross_reload_ref_pollution
 524                         cross_reload_ref_pollution = true;
 525                     }
 526                 } catch (ChannelManagerConstructor.InvalidSerializedDataException e) {
 527                     assert false;
 528                 }
 529             } else {
 530                 this.net_graph = NetworkGraph.of(Network.LDKNetwork_Bitcoin, this.logger);
 531                 Router router = Router.new_impl(new Router.RouterInterface() {
 532                     @Override
 533                     public Result_RouteLightningErrorZ find_route_with_id(byte[] payer, RouteParameters route_params, ChannelDetails[] first_hops, InFlightHtlcs inflight_htlcs, byte[] _payment_hash, byte[] _payment_id) {
 534                         return find_route(payer, route_params, first_hops, inflight_htlcs);
 535                     }
 536
 537                     @Override
 538                     public Result_RouteLightningErrorZ find_route(byte[] payer, RouteParameters params, ChannelDetails[] first_hops, InFlightHtlcs inflight_htlcs) {
 539                         while (true) {
 540                             try (ReadOnlyNetworkGraph graph = net_graph.read_only()) {
 541                                 assert graph.channel(424242) == null;
 542                                 long[] channels = graph.list_channels();
 543                                 if (channels.length != 1) {
 544                                     // If we're using a NioPeerHandler, the handling of announcement signatures and
 545                                     // channel broadcasting may be done async, so just wait until the channel shows up.
 546                                     assert use_nio_peer_handler;
 547                                     continue;
 548                                 }
 549                                 ChannelInfo chan = graph.channel(channels[0]);
 550                                 assert Arrays.equals(chan.get_node_one().as_slice(), chan.get_node_one().write());
 551                                 assert Arrays.equals(chan.get_node_one().as_slice(), chan_manager.get_our_node_id()) ||
 552                                         Arrays.equals(chan.get_node_two().as_slice(), chan_manager.get_our_node_id());
 553                                 break;
 554                             }
 555                         }
 556                         return UtilMethods.find_route(payer, params, net_graph, first_hops, logger, ScoreLookUp.new_impl(new ScoreLookUp.ScoreLookUpInterface() {
 557                             @Override public long channel_penalty_msat(long short_channel_id, NodeId source, NodeId target, ChannelUsage usage, ProbabilisticScoringFeeParameters params) { return 0; }
 558                         }), ProbabilisticScoringFeeParameters.with_default(), new byte[32]);
 559                     }
 560                 });
 561                 this.setup_route_handler();
 562                 ChannelMonitor[] monitors = new ChannelMonitor[1];
 563                 assert orig.monitors.size() == 1;
 564                 if (!break_cross_peer_refs) {
 565                     monitors[0] = orig.monitors.values().stream().iterator().next();
 566                 } else {
 567                     byte[] serialized = orig.monitors.values().stream().iterator().next().write();
 568                     Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ res =
 569                             UtilMethods.C2Tuple_ThirtyTwoBytesChannelMonitorZ_read(serialized, this.entropy_source, this.signer_provider);
 570                     assert res instanceof Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ.Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ_OK;
 571                     monitors[0] = ((Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ.Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ_OK) res).res.get_b();
 572                 }
 573                 byte[] serialized = orig.chan_manager.write();
 574                 Result_C2Tuple_ThirtyTwoBytesChannelManagerZDecodeErrorZ read_res =
 575                         UtilMethods.C2Tuple_ThirtyTwoBytesChannelManagerZ_read(serialized, this.entropy_source, this.node_signer, this.signer_provider, this.fee_estimator, this.chain_watch, this.tx_broadcaster, router, this.logger, get_config(), monitors);
 576                 assert read_res instanceof Result_C2Tuple_ThirtyTwoBytesChannelManagerZDecodeErrorZ.Result_C2Tuple_ThirtyTwoBytesChannelManagerZDecodeErrorZ_OK;
 577                 this.chan_manager = ((Result_C2Tuple_ThirtyTwoBytesChannelManagerZDecodeErrorZ.Result_C2Tuple_ThirtyTwoBytesChannelManagerZDecodeErrorZ_OK) read_res).res.get_b();
 578                 this.chain_watch.watch_channel(monitors[0].get_funding_txo().get_a(), monitors[0]);
 579                 this.peer_manager = PeerManager.of(chan_manager.as_ChannelMessageHandler(), route_handler.as_RoutingMessageHandler(),
 580                         IgnoringMessageHandler.of().as_OnionMessageHandler(), this.custom_message_handler,
 581                         (int)(System.currentTimeMillis() / 1000), this.entropy_source.get_secure_random_bytes(),
 582                         logger, this.node_signer);
 583                 if (!break_cross_peer_refs && (use_manual_watch || use_km_wrapper)) {
 584                     // When we pass monitors[0] into chain_watch.watch_channel we create a reference from the new Peer to a
 585                     // field in the old peer, preventing freeing of the original Peer until the new Peer is freed. Thus, we
 586                     // shouldn't bother waiting for the original to be freed later on.
 587                     cross_reload_ref_pollution = true;
 588                 }
 589             }
 590             this.node_id = chan_manager.get_our_node_id();
 591             bind_nio();
 592
 593             if (cross_reload_ref_pollution) {
 594                 // This really, really needs to be handled at the bindings layer, but its rather complicated -
 595                 // ChannelSigners can be cloned and passed around without java being involved, resulting in them being
 596                 // owned by both one or more ChannelMonitors and a ChannelManager, with only one having proper pointers
 597                 // to the ChannelSigner. Ideally, the ChannelSigner would have a global reference to the Java
 598                 // implementation class, but that results in circular references. Instead, we need some ability to,
 599                 // while cloning ChannelSigners, add new references in the calling Java struct (ie ChannelMonitor) to
 600                 // the ChannelSigner.
 601                 this.ptr_to = orig.chan_manager;
 602             }
 603             this.filter = null;
 604         }
 605
 606         TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32TxOutZZZ[] connect_block(Block b, int height, long expected_monitor_update_len) {
 607             byte[] header = Arrays.copyOfRange(b.bitcoinSerialize(), 0, 80);
 608             TwoTuple_usizeTransactionZ[] txn;
 609             if (b.hasTransactions()) {
 610                 assert b.getTransactions().size() == 1;
 611                 TwoTuple_usizeTransactionZ txp = TwoTuple_usizeTransactionZ.of((long) 0, b.getTransactions().get(0).bitcoinSerialize());
 612                 txn = new TwoTuple_usizeTransactionZ[]{txp};
 613             } else
 614                 txn = new TwoTuple_usizeTransactionZ[0];
 615             if (chain_monitor != null) {
 616                 chan_manager.as_Listen().block_connected(b.bitcoinSerialize(), height);
 617                 chain_monitor.as_Listen().block_connected(b.bitcoinSerialize(), height);
 618             } else {
 619                 chan_manager.as_Confirm().transactions_confirmed(header, txn, height);
 620                 chan_manager.as_Confirm().best_block_updated(header, height);
 621                 // Connect manually if we aren't using a ChainMonitor and are implementing Watch ourselves
 622                 synchronized (monitors) {
 623                     assert monitors.size() == 1;
 624                     for (ChannelMonitor mon : monitors.values()) {
 625                         TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32TxOutZZZ[] ret = mon.block_connected(header, txn, height, tx_broadcaster, fee_estimator, logger);
 626                         assert ret.length == expected_monitor_update_len;
 627                         return ret;
 628                     }
 629                 }
 630             }
 631             return null;
 632         }
 633
 634         Event[] get_monitor_events(int expected_len) {
 635             if (use_chan_manager_constructor) {
 636                 while (true) {
 637                     synchronized (this.pending_manager_events) {
 638                         if (expected_len != 0 && this.pending_manager_events.size() == expected_len) {
 639                             break;
 640                         }
 641                     }
 642                     if (expected_len == 0) {
 643                         try { Thread.sleep(500); } catch (InterruptedException e) { assert false; }
 644                         break;
 645                     } else {
 646                         Thread.yield();
 647                     }
 648                 }
 649                 synchronized (this.pending_manager_events) {
 650                     Event[] res = this.pending_manager_events.toArray(new Event[0]);
 651                     this.pending_manager_events.clear();
 652                     assert res.length == expected_len;
 653                     return res;
 654                 }
 655             } else if (chain_monitor != null) {
 656                 ArrayList<Event> l = new ArrayList<Event>();
 657                 chain_monitor.as_EventsProvider().process_pending_events(EventHandler.new_impl(l::add));
 658                 assert l.size() == expected_len;
 659                 return l.toArray(new Event[0]);
 660             } else {
 661                 synchronized (monitors) {
 662                     assert monitors.size() == 1;
 663                     for (ChannelMonitor mon : monitors.values()) {
 664                         ArrayList<Event> res = new ArrayList<Event>();
 665                         EventHandler handler = EventHandler.new_impl(new EventHandler.EventHandlerInterface() {
 666                             @Override public void handle_event(Event event) {
 667                                 res.add(event);
 668                             }
 669                         });
 670                         mon.process_pending_events(handler);
 671                         assert res.size() == expected_len;
 672                         return res.toArray(new Event[0]);
 673                     }
 674                     return null;
 675                 }
 676             }
 677         }
 678
 679         Event[] get_manager_events(int expected_len, Peer peer1, Peer peer2) {
 680             assert expected_len != 0;
 681             if (!use_nio_peer_handler) {
 682                 maybe_exchange_peer_messages(peer1, peer2);
 683             }
 684             Event[] res = new Event[0];
 685             if (use_chan_manager_constructor) {
 686                 while (res.length < expected_len) {
 687                     synchronized (this.pending_manager_events) {
 688                         if (this.pending_manager_events.size() >= expected_len) {
 689                             res = this.pending_manager_events.toArray(res);
 690                             assert res.length == expected_len;
 691                             this.pending_manager_events.clear();
 692                         }
 693                         if (res.length < expected_len) {
 694                             try { this.pending_manager_events.wait(); } catch (InterruptedException e) { assert false; }
 695                         }
 696                     }
 697                 }
 698             } else {
 699                 ArrayList<Event> l = new ArrayList<Event>();
 700                 while (l.size() < expected_len) {
 701                     Thread.yield();
 702                     if (use_nio_peer_handler) {
 703                         peer1.nio_peer_handler.check_events();
 704                         peer2.nio_peer_handler.check_events();
 705                     }
 706                     chan_manager.as_EventsProvider().process_pending_events(EventHandler.new_impl(l::add));
 707                 }
 708                 return l.toArray(new Event[0]);
 709             }
 710             assert res.length == expected_len;
 711             return res;
 712         }
 713     }
 714
 715     static class DescriptorHolder { SocketDescriptor val; }
 716
 717     boolean running = false;
 718     final LinkedList<Runnable> runqueue = new LinkedList();
 719     boolean ran = false;
 720     Thread t = new Thread(() -> {
 721             while (true) {
 722                 try {
 723                     Runnable r;
 724                     synchronized (runqueue) {
 725                         while (runqueue.isEmpty()) {
 726                             runqueue.wait();
 727                         }
 728                         running = true;
 729                         r = runqueue.pollFirst();
 730                     }
 731                     r.run();
 732                     synchronized (runqueue) {
 733                         running = false;
 734                         runqueue.notifyAll();
 735                     }
 736                 } catch (InterruptedException e) {
 737                     return;
 738                 }
 739             }
 740     });
 741
 742     void maybe_exchange_peer_messages(Peer peer1, Peer peer2) {
 743         if (!use_nio_peer_handler) {
 744             while (true) {
 745                 peer1.peer_manager.process_events();
 746                 peer2.peer_manager.process_events();
 747                 synchronized (runqueue) {
 748                     if (runqueue.isEmpty() && !running) {
 749                         if (ran) {
 750                             ran = false;
 751                             continue;
 752                         } else { break; }
 753                     }
 754                     try { runqueue.wait(); } catch (InterruptedException e) { assert false; }
 755                 }
 756             }
 757         } else if (!use_chan_manager_constructor) {
 758             peer1.nio_peer_handler.check_events();
 759             peer2.nio_peer_handler.check_events();
 760         }
 761     }
 762     void do_read_event(PeerManager pm, SocketDescriptor descriptor, byte[] data) {
 763         if (!t.isAlive()) t.start();
 764         synchronized (runqueue) {
 765             ran = true;
 766             runqueue.add(() -> {
 767                 Result_boolPeerHandleErrorZ res = pm.read_event(descriptor, data);
 768                 assert res instanceof Result_boolPeerHandleErrorZ.Result_boolPeerHandleErrorZ_OK;
 769             });
 770             runqueue.notifyAll();
 771         }
 772         must_free_objs.add(new WeakReference<>(data));
 773     }
 774
 775     void connect_peers(final Peer peer1, final Peer peer2) {
 776         peer2.connected_peer_node_id = peer1.node_id;
 777         peer1.connected_peer_node_id = peer2.node_id;
 778         if (use_nio_peer_handler) {
 779             try {
 780                 peer1.nio_peer_handler.connect(peer2.chan_manager.get_our_node_id(), new InetSocketAddress("127.0.0.1", peer2.nio_port), 100);
 781             } catch (IOException e) { assert false; }
 782             while (peer1.peer_manager.get_peer_node_ids().length == 0 || peer2.peer_manager.get_peer_node_ids().length == 0) {
 783                 Thread.yield();
 784             }
 785         } else {
 786             DescriptorHolder descriptor1 = new DescriptorHolder();
 787             DescriptorHolder descriptor1ref = descriptor1;
 788             SocketDescriptor descriptor2 = SocketDescriptor.new_impl(new SocketDescriptor.SocketDescriptorInterface() {
 789                 @Override
 790                 public long send_data(byte[] data, boolean resume_read) {
 791                     do_read_event(peer1.peer_manager, descriptor1ref.val, data);
 792                     return data.length;
 793                 }
 794
 795                 @Override public void disconnect_socket() { assert false; }
 796                 @Override public boolean eq(SocketDescriptor other_arg) { return other_arg.hash() == 2; }
 797                 @Override public long hash() { return 2; }
 798             });
 799
 800             descriptor1.val = SocketDescriptor.new_impl(new SocketDescriptor.SocketDescriptorInterface() {
 801                 @Override
 802                 public long send_data(byte[] data, boolean resume_read) {
 803                     do_read_event(peer2.peer_manager, descriptor2, data);
 804                     return data.length;
 805                 }
 806
 807                 @Override public void disconnect_socket() { assert false; }
 808                 @Override public boolean eq(SocketDescriptor other_arg) { return other_arg.hash() == 1; }
 809                 @Override public long hash() { return 1; }
 810             });
 811
 812             Result_CVec_u8ZPeerHandleErrorZ conn_res = peer1.peer_manager.new_outbound_connection(peer2.node_id, descriptor1.val, Option_SocketAddressZ.none());
 813             assert conn_res instanceof Result_CVec_u8ZPeerHandleErrorZ.Result_CVec_u8ZPeerHandleErrorZ_OK;
 814
 815             Result_NonePeerHandleErrorZ inbound_conn_res = peer2.peer_manager.new_inbound_connection(descriptor2, Option_SocketAddressZ.none());
 816             assert inbound_conn_res instanceof Result_NonePeerHandleErrorZ.Result_NonePeerHandleErrorZ_OK;
 817             do_read_event(peer2.peer_manager, descriptor2, ((Result_CVec_u8ZPeerHandleErrorZ.Result_CVec_u8ZPeerHandleErrorZ_OK) conn_res).res);
 818
 819             maybe_exchange_peer_messages(peer1, peer2);
 820         }
 821     }
 822
 823     TestState do_test_message_handler() throws InterruptedException {
 824         Peer peer1 = new Peer((byte) 1);
 825         Peer peer2 = new Peer((byte) 2);
 826
 827         connect_peers(peer1, peer2);
 828
 829         UInt128 user_id = new UInt128(new byte[] {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16});
 830
 831         Result_ThirtyTwoBytesAPIErrorZ cc_res = peer1.chan_manager.create_channel(peer2.node_id, 100000, 1000, user_id, null);
 832         assert cc_res instanceof Result_ThirtyTwoBytesAPIErrorZ.Result_ThirtyTwoBytesAPIErrorZ_OK;
 833
 834         // Previously, this was a SEGFAULT instead of get_funding_txo() returning null.
 835         ChannelDetails pre_funding_chan = peer1.chan_manager.list_channels()[0];
 836         assert pre_funding_chan.get_funding_txo() == null;
 837
 838         Event[] events = peer1.get_manager_events(1, peer1, peer2);
 839         assert events[0] instanceof Event.FundingGenerationReady;
 840         assert ((Event.FundingGenerationReady) events[0]).channel_value_satoshis == 100000;
 841         assert ((Event.FundingGenerationReady) events[0]).user_channel_id.equals(user_id);
 842         byte[] funding_spk = ((Event.FundingGenerationReady) events[0]).output_script;
 843         assert funding_spk.length == 34 && funding_spk[0] == 0 && funding_spk[1] == 32; // P2WSH
 844         byte[] chan_id = ((Event.FundingGenerationReady) events[0]).temporary_channel_id;
 845
 846         BitcoinNetworkParams bitcoinj_net = BitcoinNetworkParams.of(BitcoinNetwork.MAINNET);
 847
 848         Transaction funding_input = new Transaction(bitcoinj_net);
 849         funding_input.addOutput(Coin.SATOSHI.multiply(100000), new Script(funding_spk));
 850         Transaction funding = new Transaction(bitcoinj_net);
 851         funding.addInput(funding_input.getOutput(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         events = peer1.get_manager_events(1, peer1, peer2);
 868         assert events[0] instanceof Event.ChannelPending;
 869
 870         events = peer2.get_manager_events(1, peer1, peer2);
 871         assert events[0] instanceof Event.ChannelPending;
 872
 873         assert peer1.broadcast_set.size() == 1;
 874         assert Arrays.equals(peer1.broadcast_set.get(0), funding.bitcoinSerialize());
 875         peer1.broadcast_set.clear();
 876
 877         Block b = new Block(bitcoinj_net, 2, Sha256Hash.ZERO_HASH, Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
 878         peer1.connect_block(b, 1, 0);
 879         peer2.connect_block(b, 1, 0);
 880
 881         for (int height = 2; height < 10; height++) {
 882             b = new Block(bitcoinj_net, 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[0]));
 883             peer1.connect_block(b, height, 0);
 884             peer2.connect_block(b, height, 0);
 885         }
 886
 887         maybe_exchange_peer_messages(peer1, peer2);
 888         while (peer1.chan_manager.list_usable_channels().length != 1 || peer2.chan_manager.list_usable_channels().length != 1) ;
 889
 890         events = peer1.get_manager_events(1, peer1, peer2);
 891         assert events[0] instanceof Event.ChannelReady;
 892
 893         events = peer2.get_manager_events(1, peer1, peer2);
 894         assert events[0] instanceof Event.ChannelReady;
 895
 896         ChannelDetails[] peer1_chans = peer1.chan_manager.list_usable_channels();
 897         ChannelDetails[] peer2_chans = peer2.chan_manager.list_usable_channels();
 898         assert peer1_chans.length == 1;
 899         assert peer2_chans.length == 1;
 900         assert peer1_chans[0].get_channel_value_satoshis() == 100000;
 901         assert peer1_chans[0].get_is_usable();
 902         Option_u64Z short_chan_id = peer1_chans[0].get_short_channel_id();
 903         assert short_chan_id instanceof Option_u64Z.Some;
 904         assert ((Option_u64Z.Some)short_chan_id).some == (1L << 40); // 0th output in the 0th transaction in the 1st block
 905         assert Arrays.equals(peer1_chans[0].get_channel_id(), funding.getTxId().getReversedBytes());
 906         assert Arrays.equals(peer2_chans[0].get_channel_id(), funding.getTxId().getReversedBytes());
 907
 908         Result_Bolt11InvoiceSignOrCreationErrorZ invoice = UtilMethods.create_invoice_from_channelmanager(peer2.chan_manager, peer2.node_signer, peer2.logger, Currency.LDKCurrency_Bitcoin, Option_u64Z.some(10000000), "Invoice Description", 7200, Option_u16Z.none());
 909         assert invoice instanceof Result_Bolt11InvoiceSignOrCreationErrorZ.Result_Bolt11InvoiceSignOrCreationErrorZ_OK;
 910         System.out.println("Got invoice: " + ((Result_Bolt11InvoiceSignOrCreationErrorZ.Result_Bolt11InvoiceSignOrCreationErrorZ_OK) invoice).res.to_str());
 911
 912         Result_Bolt11InvoiceParseOrSemanticErrorZ parsed_invoice = Bolt11Invoice.from_str(((Result_Bolt11InvoiceSignOrCreationErrorZ.Result_Bolt11InvoiceSignOrCreationErrorZ_OK) invoice).res.to_str());
 913         assert parsed_invoice instanceof Result_Bolt11InvoiceParseOrSemanticErrorZ.Result_Bolt11InvoiceParseOrSemanticErrorZ_OK;
 914         //assert ((Result_Bolt11InvoiceParseOrSemanticErrorZ.Result_Bolt11InvoiceParseOrSemanticErrorZ_OK) parsed_invoice).res.fallback_addresses().length == 0;
 915         assert Arrays.equals(((Result_Bolt11InvoiceParseOrSemanticErrorZ.Result_Bolt11InvoiceParseOrSemanticErrorZ_OK) parsed_invoice).res.payment_hash(), ((Result_Bolt11InvoiceSignOrCreationErrorZ.Result_Bolt11InvoiceSignOrCreationErrorZ_OK) invoice).res.payment_hash());
 916         SignedRawBolt11Invoice signed_raw = ((Result_Bolt11InvoiceParseOrSemanticErrorZ.Result_Bolt11InvoiceParseOrSemanticErrorZ_OK) parsed_invoice).res.into_signed_raw();
 917         RawBolt11Invoice raw_invoice = signed_raw.raw_invoice();
 918         byte[] desc_hash = raw_invoice.signable_hash();
 919         Description raw_invoice_description = raw_invoice.description();
 920         String description_string = raw_invoice_description.into_inner();
 921         assert description_string.equals("Invoice Description");
 922
 923         // Do a trivial test of constructing a phantom invoice
 924         Result_Bolt11InvoiceSignOrCreationErrorZ phantom_invoice = UtilMethods.create_phantom_invoice(
 925                 Option_u64Z.some(42000),
 926                 Option_ThirtyTwoBytesZ.none(),
 927                 "Phantom Invoice", 7200,
 928                 new PhantomRouteHints[]{ peer2.chan_manager.get_phantom_route_hints() },
 929                 peer2.entropy_source,
 930                 PhantomKeysManager.of(peer2.key_seed, 42, 42, new byte[32]).as_NodeSigner(),
 931                 peer2.logger, Currency.LDKCurrency_Bitcoin, Option_u16Z.none(),
 932                 System.currentTimeMillis() / 1000);
 933         assert phantom_invoice.is_ok();
 934         RouteHint[] hints = ((Result_Bolt11InvoiceSignOrCreationErrorZ.Result_Bolt11InvoiceSignOrCreationErrorZ_OK)phantom_invoice).res.route_hints();
 935         assert hints.length == 1;
 936         RouteHintHop[] val = hints[0].get_a();
 937         assert hints[0].get_a().length == 1; // Our one channel is public so we should just have a single-hop hint
 938
 939         if (!use_invoice_payer) {
 940             byte[] payment_hash = ((Result_Bolt11InvoiceSignOrCreationErrorZ.Result_Bolt11InvoiceSignOrCreationErrorZ_OK) invoice).res.payment_hash();
 941             byte[] payment_secret = ((Result_Bolt11InvoiceSignOrCreationErrorZ.Result_Bolt11InvoiceSignOrCreationErrorZ_OK) invoice).res.payment_secret();
 942             byte[] dest_node_id = ((Result_Bolt11InvoiceSignOrCreationErrorZ.Result_Bolt11InvoiceSignOrCreationErrorZ_OK) invoice).res.recover_payee_pub_key();
 943             assert Arrays.equals(dest_node_id, peer2.node_id);
 944             Bolt11InvoiceFeatures invoice_features = ((Result_Bolt11InvoiceSignOrCreationErrorZ.Result_Bolt11InvoiceSignOrCreationErrorZ_OK) invoice).res.features();
 945             RouteHint[] route_hints = ((Result_Bolt11InvoiceSignOrCreationErrorZ.Result_Bolt11InvoiceSignOrCreationErrorZ_OK) invoice).res.route_hints();
 946
 947             Payee payee = Payee.clear(peer2.node_id, route_hints, invoice_features, 42);
 948             PaymentParameters pay_params = PaymentParameters.of(payee, Option_u64Z.none(), 6*24*14, (byte)1, (byte)2, new long[0]);
 949             RouteParameters route_params = RouteParameters.from_payment_params_and_value(pay_params, 10000000);
 950             Result_RouteLightningErrorZ route_res = UtilMethods.find_route(
 951                     peer1.chan_manager.get_our_node_id(), route_params, peer1.net_graph,
 952                     peer1_chans, peer1.logger,
 953                     ProbabilisticScorer.of(ProbabilisticScoringDecayParameters.with_default(), peer1.net_graph, peer1.logger).as_ScoreLookUp(),
 954                     ProbabilisticScoringFeeParameters.with_default(), new byte[32]);
 955             assert route_res instanceof Result_RouteLightningErrorZ.Result_RouteLightningErrorZ_OK;
 956             Route route = ((Result_RouteLightningErrorZ.Result_RouteLightningErrorZ_OK) route_res).res;
 957             assert route.get_paths().length == 1;
 958             assert route.get_paths()[0].get_hops().length == 1;
 959             assert route.get_paths()[0].final_value_msat() == 10000000;
 960
 961             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 };
 962             Result_NonePaymentSendFailureZ payment_res = peer1.chan_manager.send_payment_with_route(route, payment_hash, RecipientOnionFields.secret_only(payment_secret), payment_id);
 963             assert payment_res instanceof Result_NonePaymentSendFailureZ.Result_NonePaymentSendFailureZ_OK;
 964
 965             RouteHop[] hops = new RouteHop[1];
 966             byte[] hop_pubkey = new byte[33];
 967             hop_pubkey[0] = 3;
 968             hop_pubkey[1] = 42;
 969             NodeFeatures node_features = NodeFeatures.empty();
 970             ChannelFeatures channel_features = ChannelFeatures.empty();
 971             hops[0] = RouteHop.of(hop_pubkey, node_features, 42, channel_features, 100, 0, false);
 972             Path[] paths = new Path[1];
 973             paths[0] = Path.of(hops, null);
 974             Route r2 = Route.of(paths, RouteParameters.from_payment_params_and_value(pay_params, 100));
 975             payment_res = peer1.chan_manager.send_payment_with_route(r2, payment_hash, RecipientOnionFields.secret_only(payment_secret), payment_id);
 976             assert payment_res instanceof Result_NonePaymentSendFailureZ.Result_NonePaymentSendFailureZ_Err;
 977         } else {
 978             Result_ThirtyTwoBytesPaymentErrorZ send_res = UtilMethods.pay_invoice(((Result_Bolt11InvoiceParseOrSemanticErrorZ.Result_Bolt11InvoiceParseOrSemanticErrorZ_OK) parsed_invoice).res, Retry.attempts(0), peer1.chan_manager);
 979             assert send_res instanceof Result_ThirtyTwoBytesPaymentErrorZ.Result_ThirtyTwoBytesPaymentErrorZ_OK;
 980         }
 981
 982         if (reload_peers) {
 983             assert peer1.network_graph_persists == 0;
 984             assert peer2.network_graph_persists == 0;
 985             if (use_chan_manager_constructor) {
 986                 peer1.constructor.interrupt();
 987                 peer2.constructor.interrupt();
 988                 if (!use_ignore_handler) {
 989                     assert peer1.network_graph_persists >= 1;
 990                     assert peer2.network_graph_persists >= 1;
 991                 } else {
 992                     assert peer1.network_graph_persists == 0;
 993                     assert peer2.network_graph_persists == 0;
 994                 }
 995             } else if (use_nio_peer_handler) {
 996                 peer1.nio_peer_handler.interrupt();
 997                 peer2.nio_peer_handler.interrupt();
 998             }
 999             WeakReference<Peer> op1 = new WeakReference<Peer>(peer1);
1000             peer1 = new Peer(peer1);
1001             peer2 = new Peer(peer2);
1002             return new TestState(op1, peer1, peer2, b.getHash());
1003         }
1004         return new TestState(null, peer1, peer2, b.getHash());
1005     }
1006
1007     boolean cross_reload_ref_pollution = false;
1008     class TestState {
1009         private final WeakReference<Peer> ref_block;
1010         private final Peer peer1;
1011         private final Peer peer2;
1012         public Sha256Hash best_blockhash;
1013
1014         public TestState(WeakReference<Peer> ref_block, Peer peer1, Peer peer2, Sha256Hash best_blockhash) {
1015             this.ref_block = ref_block;
1016             this.peer1 = peer1;
1017             this.peer2 = peer2;
1018             this.best_blockhash = best_blockhash;
1019         }
1020     }
1021     void do_test_message_handler_b(TestState state) throws Exception {
1022         GcCheck obj = new GcCheck();
1023         if (state.ref_block != null) {
1024             // Ensure the original peers get freed before we move on. Note that we have to be in a different function
1025             // scope to do so as the (at least current OpenJDK) JRE won't release anything created in the same scope.
1026             while (!cross_reload_ref_pollution && state.ref_block.get() != null) {
1027                 System.gc();
1028                 System.runFinalization();
1029             }
1030             connect_peers(state.peer1, state.peer2);
1031         }
1032
1033         Event[] events = state.peer2.get_manager_events(1, state.peer1, state.peer2);
1034         assert events[0] instanceof Event.PendingHTLCsForwardable;
1035         state.peer2.chan_manager.process_pending_htlc_forwards();
1036
1037         events = state.peer2.get_manager_events(1, state.peer1, state.peer2);
1038         assert events[0] instanceof Event.PaymentClaimable;
1039         assert ((Event.PaymentClaimable)events[0]).purpose instanceof PaymentPurpose.InvoicePayment;
1040         assert ((PaymentPurpose.InvoicePayment) ((Event.PaymentClaimable)events[0]).purpose).payment_preimage instanceof Option_ThirtyTwoBytesZ.Some;
1041         byte[] payment_preimage = ((Option_ThirtyTwoBytesZ.Some) ((PaymentPurpose.InvoicePayment)((Event.PaymentClaimable)events[0]).purpose).payment_preimage).some;
1042         assert !Arrays.equals(payment_preimage, new byte[32]);
1043         state.peer2.chan_manager.claim_funds(payment_preimage);
1044
1045         events = state.peer2.get_manager_events(1, state.peer1, state.peer2);
1046         assert events[0] instanceof Event.PaymentClaimed;
1047         assert ((Event.PaymentClaimed)events[0]).purpose instanceof PaymentPurpose.InvoicePayment;
1048         assert ((PaymentPurpose.InvoicePayment) ((Event.PaymentClaimed)events[0]).purpose).payment_preimage instanceof  Option_ThirtyTwoBytesZ.Some;
1049         payment_preimage = ((Option_ThirtyTwoBytesZ.Some)((PaymentPurpose.InvoicePayment)((Event.PaymentClaimed)events[0]).purpose).payment_preimage).some;
1050         assert !Arrays.equals(payment_preimage, new byte[32]);
1051
1052         events = state.peer1.get_manager_events(2, state.peer1, state.peer2);
1053         assert events[0] instanceof Event.PaymentSent;
1054         assert Arrays.equals(((Event.PaymentSent) events[0]).payment_preimage, payment_preimage);
1055         assert events[1] instanceof Event.PaymentPathSuccessful;
1056         assert ((Event.PaymentPathSuccessful) events[1]).payment_hash instanceof Option_ThirtyTwoBytesZ.Some;
1057         assert Arrays.equals(((Option_ThirtyTwoBytesZ.Some) ((Event.PaymentPathSuccessful) events[1]).payment_hash).some, ((Event.PaymentSent) events[0]).payment_hash);
1058
1059         if (use_nio_peer_handler) {
1060             // We receive PaymentSent immediately upon receipt of the payment preimage, but we expect to not have an
1061             // HTLC transaction to broadcast below, which requires a bit more time to fully complete the
1062             // commitment-transaction-update dance between both peers.
1063             Thread.sleep(100);
1064         }
1065
1066         if (state.peer1.chain_monitor != null) {
1067             Balance[] peer1_balances = state.peer1.chain_monitor.get_claimable_balances(state.peer1.chan_manager.list_channels());
1068             assert peer1_balances.length == 0;
1069             Balance[] peer2_balances = state.peer2.chain_monitor.get_claimable_balances(state.peer2.chan_manager.list_channels());
1070             assert peer2_balances.length == 0;
1071         }
1072
1073         ChannelDetails[] peer1_chans = state.peer1.chan_manager.list_channels();
1074
1075         if (nice_close) {
1076             Result_NoneAPIErrorZ close_res = state.peer1.chan_manager.close_channel(peer1_chans[0].get_channel_id(), state.peer2.node_id);
1077             assert close_res instanceof Result_NoneAPIErrorZ.Result_NoneAPIErrorZ_OK;
1078             maybe_exchange_peer_messages(state.peer1, state.peer2);
1079             synchronized (state.peer1.broadcast_set) {
1080                 while (state.peer1.broadcast_set.size() != 1) state.peer1.broadcast_set.wait();
1081             }
1082             synchronized (state.peer2.broadcast_set) {
1083                 while (state.peer2.broadcast_set.size() != 1) state.peer2.broadcast_set.wait();
1084             }
1085         } else {
1086             state.peer1.chan_manager.force_close_all_channels_broadcasting_latest_txn();
1087             maybe_exchange_peer_messages(state.peer1, state.peer2);
1088             synchronized (state.peer1.broadcast_set) {
1089                 while (state.peer1.broadcast_set.size() != 1) state.peer1.broadcast_set.wait();
1090             }
1091             synchronized (state.peer2.broadcast_set) {
1092                 while (state.peer2.broadcast_set.size() != 1) state.peer2.broadcast_set.wait();
1093             }
1094         }
1095
1096         assert state.peer1.broadcast_set.size() == 1;
1097         assert state.peer2.broadcast_set.size() == 1;
1098
1099         events = state.peer2.get_manager_events(1, state.peer1, state.peer2);
1100         assert events[0] instanceof Event.ChannelClosed;
1101         events = state.peer1.get_manager_events(1, state.peer1, state.peer2);
1102         assert events[0] instanceof Event.ChannelClosed;
1103
1104         if (state.peer1.chain_monitor != null) {
1105             Balance[] peer1_balances = state.peer1.chain_monitor.get_claimable_balances(state.peer1.chan_manager.list_channels());
1106             assert peer1_balances.length == 1;
1107             for (Balance bal : peer1_balances) {
1108                 assert bal instanceof Balance.ClaimableOnChannelClose;
1109                 long expected_tx_fee = 183;
1110                 assert ((Balance.ClaimableOnChannelClose) bal).amount_satoshis == 100000 - 1 - 10000 - expected_tx_fee;
1111             }
1112             Balance[] peer2_balances = state.peer2.chain_monitor.get_claimable_balances(state.peer2.chan_manager.list_channels());
1113             assert peer2_balances.length == 1;
1114             for (Balance bal : peer2_balances) {
1115                 assert bal instanceof Balance.ClaimableOnChannelClose;
1116                 assert ((Balance.ClaimableOnChannelClose) bal).amount_satoshis == 10000 + 1;
1117             }
1118         }
1119
1120         if (!nice_close) {
1121             BitcoinNetworkParams bitcoinj_net = BitcoinNetworkParams.of(BitcoinNetwork.MAINNET);
1122             Transaction tx = new Transaction(bitcoinj_net, state.peer1.broadcast_set.getFirst());
1123             Block b = new Block(bitcoinj_net, 2, state.best_blockhash, Sha256Hash.ZERO_HASH, 42, 0, 0,
1124                     Arrays.asList(new Transaction[]{tx}));
1125             TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32TxOutZZZ[] watch_outputs = state.peer2.connect_block(b, 10, 1);
1126             if (watch_outputs != null) { // We only process watch_outputs manually when we use a manually-build Watch impl
1127                 assert watch_outputs.length == 1;
1128                 assert Arrays.equals(watch_outputs[0].get_a(), tx.getTxId().getReversedBytes());
1129                 assert watch_outputs[0].get_b().length == 2;
1130                 assert watch_outputs[0].get_b()[0].get_a() == 0;
1131                 assert watch_outputs[0].get_b()[1].get_a() == 1;
1132             }
1133
1134             for (int i = 11; i < 21; i++) {
1135                 b = new Block(bitcoinj_net, 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, new ArrayList<>());
1136                 state.peer2.connect_block(b, i, 0);
1137             }
1138
1139             Event[] broadcastable_event = state.peer2.get_monitor_events(1);
1140             for (ChannelMonitor mon : state.peer2.monitors.values()) {
1141                 // This used to be buggy and double-free, so go ahead and fetch them!
1142                 byte[][] txn = mon.get_latest_holder_commitment_txn(state.peer2.logger);
1143             }
1144             assert broadcastable_event.length == 1;
1145             assert broadcastable_event[0] instanceof Event.SpendableOutputs;
1146             if (state.peer2.explicit_keys_manager != null) {
1147                 TxOut[] additional_outputs = new TxOut[]{new TxOut(420, new byte[]{0x42})};
1148                 Result_TransactionNoneZ tx_res = state.peer2.explicit_keys_manager.spend_spendable_outputs(((Event.SpendableOutputs) broadcastable_event[0]).outputs, additional_outputs, new byte[]{0x00}, 253, Option_u32Z.none());
1149                 assert tx_res instanceof Result_TransactionNoneZ.Result_TransactionNoneZ_OK;
1150                 Transaction built_tx = new Transaction(bitcoinj_net, ((Result_TransactionNoneZ.Result_TransactionNoneZ_OK) tx_res).res);
1151                 assert built_tx.getOutputs().size() == 2;
1152                 assert Arrays.equals(built_tx.getOutput(1).getScriptBytes(), new byte[]{0x00});
1153                 assert Arrays.equals(built_tx.getOutput(0).getScriptBytes(), new byte[]{0x42});
1154                 assert built_tx.getOutput(0).getValue().value == 420;
1155             }
1156         }
1157
1158         // Test exchanging a custom message (note that ChannelManagerConstructor) always loads an IgnorimgMessageHandler
1159         // so we cannot exchange custom messages with it
1160         if (!use_chan_manager_constructor) {
1161             byte[] custom_message_bytes = new byte[]{0x42, 0x44, 0x43, 0x00};
1162             synchronized(state.peer1.custom_messages_to_send) {
1163                 state.peer1.custom_messages_to_send.add(custom_message_bytes);
1164             }
1165             state.peer1.peer_manager.process_events();
1166             synchronized (state.peer2.received_custom_messages) {
1167                 while (true) {
1168                     if (state.peer2.received_custom_messages.isEmpty()) {
1169                         state.peer2.received_custom_messages.wait();
1170                         continue;
1171                     }
1172                     assert state.peer2.received_custom_messages.size() == 1;
1173                     assert Arrays.equals(state.peer2.received_custom_messages.get(0), custom_message_bytes);
1174                     break;
1175                 }
1176             }
1177         }
1178
1179         if (use_nio_peer_handler) {
1180             state.peer1.peer_manager.disconnect_by_node_id(state.peer2.chan_manager.get_our_node_id());
1181             while (state.peer1.peer_manager.get_peer_node_ids().length != 0) Thread.yield();
1182             while (state.peer2.peer_manager.get_peer_node_ids().length != 0) Thread.yield();
1183             state.peer1.nio_peer_handler.interrupt();
1184             state.peer2.nio_peer_handler.interrupt();
1185         }
1186
1187         state.peer1.get_monitor_events(0);
1188         state.peer2.get_monitor_events(0);
1189
1190         if (use_chan_manager_constructor) {
1191             assert state.peer1.network_graph_persists == 0;
1192             assert state.peer2.network_graph_persists == 0;
1193             state.peer1.constructor.interrupt();
1194             state.peer2.constructor.interrupt();
1195             if (!use_ignore_handler) {
1196                 assert state.peer1.network_graph_persists >= 1;
1197                 assert state.peer2.network_graph_persists >= 1;
1198             } else {
1199                 assert state.peer1.network_graph_persists == 0;
1200                 assert state.peer2.network_graph_persists == 0;
1201             }
1202         }
1203
1204         t.interrupt();
1205
1206         if (state.peer1.net_graph != null)
1207             state.peer1.net_graph.write();
1208
1209         // Construct the only Option_Enum::Variant(OpaqueStruct) we have in the codebase as this used to cause double-frees:
1210         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};
1211         Result_ChannelUpdateDecodeErrorZ upd_msg = ChannelUpdate.read(serd);
1212         assert upd_msg instanceof Result_ChannelUpdateDecodeErrorZ.Result_ChannelUpdateDecodeErrorZ_OK;
1213         assert ((Result_ChannelUpdateDecodeErrorZ.Result_ChannelUpdateDecodeErrorZ_OK) upd_msg).res.get_contents().get_htlc_maximum_msat() == 0xdeadbeef42424242L;
1214         Option_NetworkUpdateZ upd = Option_NetworkUpdateZ.some(NetworkUpdate.channel_update_message(((Result_ChannelUpdateDecodeErrorZ.Result_ChannelUpdateDecodeErrorZ_OK) upd_msg).res));
1215
1216         if (use_chan_manager_constructor) {
1217             // Lock the scorer twice back-to-back to check that the try-with-resources AutoCloseable on the scorer works.
1218             try (ChannelManagerConstructor.ScorerWrapper score = state.peer1.constructor.get_locked_scorer()) {
1219                 score.prob_scorer.debug_log_liquidity_stats();
1220             }
1221         }
1222     }
1223
1224     java.util.LinkedList<WeakReference<Object>> must_free_objs = new java.util.LinkedList();
1225     int gc_count = 0;
1226     int gc_exp_count = 0;
1227     class GcCheck {
1228         GcCheck() { gc_exp_count += 1; }
1229         @Override
1230         protected void finalize() throws Throwable {
1231             gc_count += 1;
1232             super.finalize();
1233         }
1234     }
1235 }
1236 public class HumanObjectPeerTest {
1237     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 Exception {
1238         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);
1239         HumanObjectPeerTestInstance.TestState state = instance.do_test_message_handler();
1240         instance.do_test_message_handler_b(state);
1241         return instance;
1242     }
1243     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 Exception {
1244         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);
1245         while (instance.gc_count != instance.gc_exp_count) {
1246             System.gc();
1247             System.runFinalization();
1248         }
1249         for (WeakReference<Object> o : instance.must_free_objs)
1250             assert o.get() == null;
1251     }
1252     public static final int TEST_ITERATIONS = (1 << 9);
1253     public static void do_test_message_handler(IntConsumer statusFunction) throws Exception {
1254         Thread gc_thread = new Thread(() -> {
1255             while (true) {
1256                 System.gc();
1257                 System.runFinalization();
1258                 try { Thread.sleep(0, 1); } catch (InterruptedException e) { break; }
1259             }
1260         }, "Test GC Thread");
1261         gc_thread.start();
1262         for (int i = 0; i < TEST_ITERATIONS; i++) {
1263             boolean nice_close =                   (i & (1 << 0)) != 0;
1264             boolean use_km_wrapper =               (i & (1 << 1)) != 0;
1265             boolean use_manual_watch =             (i & (1 << 2)) != 0;
1266             boolean reload_peers =                 (i & (1 << 3)) != 0;
1267             boolean break_cross_refs =             (i & (1 << 4)) != 0;
1268             boolean use_ignoring_routing_handler = (i & (1 << 5)) != 0;
1269             boolean use_chan_manager_constructor = (i & (1 << 6)) != 0;
1270             boolean use_invoice_payer =            (i & (1 << 7)) != 0;
1271             boolean nio_peer_handler =             (i & (1 << 8)) != 0;
1272             if (break_cross_refs && !reload_peers) {
1273                 // There are no cross refs to break without reloading peers.
1274                 continue;
1275             }
1276             if (use_chan_manager_constructor && (use_manual_watch || !nio_peer_handler)) {
1277                 // ChannelManagerConstructor requires a ChainMonitor as the Watch and creates a NioPeerHandler for us.
1278                 continue;
1279             }
1280             if (!use_chan_manager_constructor && (use_ignoring_routing_handler)) {
1281                 // We rely on the ChannelManagerConstructor to convert null into an IgnoringMessageHandler, so don't
1282                 // try to run with an IgnoringMessageHandler unless we're also using a ChannelManagerConstructor.
1283                 continue;
1284             }
1285             if (use_chan_manager_constructor && use_ignoring_routing_handler && use_invoice_payer) {
1286                 // As documented on ChannelManagerConstructor, if we provide a `null` NetworkGraph (because we want to
1287                 // use an IgnoringMessageHandler), no InvoicePayer will be constructored for us, thus we cannot use an
1288                 // InvoicePayer to send payments in this case.
1289                 continue;
1290             }
1291             if (use_chan_manager_constructor && use_km_wrapper) {
1292                 // ChannelManagerConstructor requires a full KeysManager, so using wrapped keys interfaces doesn't make
1293                 // any sense.
1294                 continue;
1295             }
1296             statusFunction.accept(i);
1297             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);
1298         }
1299         gc_thread.interrupt();
1300         gc_thread.join();
1301     }
1302     @Test
1303     public void test_message_handler() throws Exception {
1304         do_test_message_handler(i -> System.err.println("Running test with flags " + i));
1305     }
1306
1307     // This is used in the test jar to test the built jar is runnable
1308     public static void main(String[] args) {
1309         try {
1310             do_test_message_handler(i -> System.err.println("Running test with flags " + i));
1311         } catch (Exception e) {
1312             System.err.println("Caught exception:");
1313             System.err.println(e);
1314             System.exit(1);
1315         }
1316     }
1317 }