_ 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.FileReader;
  19 import java.io.IOException;
  20 import java.lang.ref.WeakReference;
  21 import java.net.InetSocketAddress;
  22 import java.util.*;
  23 import java.util.function.IntConsumer;
  24
  25 class HumanObjectPeerTestInstance {
  26     private final boolean nice_close;
  27     private final boolean use_km_wrapper;
  28     private final boolean use_full_km_wrapper;
  29     private final boolean use_manual_watch;
  30     private final boolean reload_peers;
  31     private final boolean break_cross_peer_refs;
  32     private final boolean use_nio_peer_handler;
  33     private final boolean use_filter;
  34     private final boolean use_ignore_handler;
  35     private final boolean use_chan_manager_constructor;
  36     private final boolean use_invoice_payer;
  37     TxOut gossip_txout = null;
  38
  39     HumanObjectPeerTestInstance(boolean nice_close, boolean use_km_wrapper, boolean use_full_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) {
  40         this.nice_close = nice_close;
  41         this.use_km_wrapper = use_km_wrapper;
  42         this.use_full_km_wrapper = use_full_km_wrapper;
  43         this.use_manual_watch = use_manual_watch;
  44         this.reload_peers = reload_peers;
  45         this.break_cross_peer_refs = break_cross_peer_refs;
  46         this.use_nio_peer_handler = use_nio_peer_handler;
  47         this.use_filter = use_filter;
  48         this.use_ignore_handler = use_ignore_handler;
  49         this.use_chan_manager_constructor = use_chan_manager_constructor;
  50         this.use_invoice_payer = use_invoice_payer;
  51     }
  52
  53     class Peer {
  54         NodeSigner manual_node_signer(KeysManager underlying_km) {
  55             NodeSigner underlying_ns = underlying_km.as_NodeSigner();
  56             must_free_objs.add(new WeakReference<>(underlying_ns));
  57             return NodeSigner.new_impl(new NodeSigner.NodeSignerInterface() {
  58                 @Override public byte[] get_inbound_payment_key_material() { return underlying_ns.get_inbound_payment_key_material(); }
  59                 @Override public Result_PublicKeyNoneZ get_node_id(Recipient recipient) { return underlying_ns.get_node_id(recipient); }
  60                 @Override public Result_ThirtyTwoBytesNoneZ ecdh(Recipient recipient, byte[] other_key, Option_BigEndianScalarZ tweak) {
  61                     return underlying_ns.ecdh(recipient, other_key, tweak);
  62                 }
  63                 @Override public Result_RecoverableSignatureNoneZ sign_invoice(byte[] hrp_bytes, UInt5[] invoice_data, Recipient recipient) {
  64                     return underlying_ns.sign_invoice(hrp_bytes, invoice_data, recipient);
  65                 }
  66                 @Override public Result_SchnorrSignatureNoneZ sign_bolt12_invoice_request(UnsignedInvoiceRequest invoice_request) {
  67                     return underlying_ns.sign_bolt12_invoice_request(invoice_request);
  68                 }
  69                 @Override public Result_SchnorrSignatureNoneZ sign_bolt12_invoice(UnsignedBolt12Invoice invoice) {
  70                     return underlying_ns.sign_bolt12_invoice(invoice);
  71                 }
  72                 @Override public Result_ECDSASignatureNoneZ sign_gossip_message(UnsignedGossipMessage msg) {
  73                     return underlying_ns.sign_gossip_message(msg);
  74                 }
  75             });
  76         }
  77         SignerProvider manual_signer_provider(KeysManager underlying_km) {
  78             SignerProvider underlying_sp = underlying_km.as_SignerProvider();
  79             must_free_objs.add(new WeakReference<>(underlying_sp));
  80             return SignerProvider.new_impl(new SignerProvider.SignerProviderInterface() {
  81                 @Override public Result_CVec_u8ZNoneZ get_destination_script() { return underlying_sp.get_destination_script(); }
  82                 @Override public Result_ShutdownScriptNoneZ get_shutdown_scriptpubkey() { return underlying_sp.get_shutdown_scriptpubkey(); }
  83                 @Override public byte[] generate_channel_keys_id(boolean inbound, long channel_value_satoshis, UInt128 user_channel_id) {
  84                     return underlying_sp.generate_channel_keys_id(inbound, channel_value_satoshis, user_channel_id);
  85                 }
  86                 @Override
  87                 public WriteableEcdsaChannelSigner derive_channel_signer(long channel_value_satoshis, byte[] channel_keys_id) {
  88                     if (!use_full_km_wrapper) {
  89                         WriteableEcdsaChannelSigner underlying_signer = underlying_sp.derive_channel_signer(channel_value_satoshis, channel_keys_id);
  90                         must_free_objs.add(new WeakReference<>(underlying_signer));
  91                         return underlying_signer;
  92                     } else {
  93                         WriteableEcdsaChannelSigner underlying_wecs = underlying_sp.derive_channel_signer(channel_value_satoshis, channel_keys_id);
  94                         EcdsaChannelSigner underlying_ecs = underlying_wecs.get_ecdsa_channel_signer();
  95                         ChannelSigner underlying_cs = underlying_ecs.get_channel_signer();
  96                         ChannelSigner.ChannelSignerInterface csi = new ChannelSigner.ChannelSignerInterface() {
  97                             @Override public byte[] get_per_commitment_point(long idx) { return underlying_cs.get_per_commitment_point(idx); }
  98                             @Override public byte[] release_commitment_secret(long idx) { return underlying_cs.release_commitment_secret(idx); }
  99                             @Override public Result_NoneNoneZ validate_holder_commitment(HolderCommitmentTransaction holder_tx, byte[][] preimages) {
 100                                 return underlying_cs.validate_holder_commitment(holder_tx, preimages);
 101                             }
 102                             @Override public byte[] channel_keys_id() { return underlying_cs.channel_keys_id(); }
 103                             @Override public void provide_channel_parameters(ChannelTransactionParameters channel_parameters) {
 104                                 underlying_cs.provide_channel_parameters(channel_parameters);
 105                             }
 106                         };
 107                         EcdsaChannelSigner.EcdsaChannelSignerInterface ecsi = new EcdsaChannelSigner.EcdsaChannelSignerInterface() {
 108                             @Override public Result_C2Tuple_ECDSASignatureCVec_ECDSASignatureZZNoneZ sign_counterparty_commitment(CommitmentTransaction commitment_tx, byte[][] preimages) {
 109                                 return underlying_ecs.sign_counterparty_commitment(commitment_tx, preimages);
 110                             }
 111                             @Override public Result_NoneNoneZ validate_counterparty_revocation(long idx, byte[] secret) {
 112                                 return underlying_ecs.validate_counterparty_revocation(idx, secret);
 113                             }
 114                             @Override public Result_ECDSASignatureNoneZ sign_holder_commitment(HolderCommitmentTransaction commitment_tx) {
 115                                 return underlying_ecs.sign_holder_commitment(commitment_tx);
 116                             }
 117                             @Override public Result_ECDSASignatureNoneZ sign_justice_revoked_output(byte[] justice_tx, long input, long amount, byte[] per_commitment_key) {
 118                                 return underlying_ecs.sign_justice_revoked_output(justice_tx, input, amount, per_commitment_key);
 119                             }
 120                             @Override public Result_ECDSASignatureNoneZ sign_justice_revoked_htlc(byte[] justice_tx, long input, long amount, byte[] per_commitment_key, HTLCOutputInCommitment htlc) {
 121                                 return underlying_ecs.sign_justice_revoked_htlc(justice_tx, input, amount, per_commitment_key, htlc);
 122                             }
 123                             @Override public Result_ECDSASignatureNoneZ sign_holder_htlc_transaction(byte[] htlc_tx, long input, HTLCDescriptor htlc_descriptor) {
 124                                 return underlying_ecs.sign_holder_htlc_transaction(htlc_tx, input, htlc_descriptor);
 125                             }
 126                             @Override public Result_ECDSASignatureNoneZ sign_counterparty_htlc_transaction(byte[] htlc_tx, long input, long amount, byte[] per_commitment_point, HTLCOutputInCommitment htlc) {
 127                                 return underlying_ecs.sign_counterparty_htlc_transaction(htlc_tx, input, amount, per_commitment_point, htlc);
 128                             }
 129                             @Override public Result_ECDSASignatureNoneZ sign_closing_transaction(ClosingTransaction closing_tx) {
 130                                 return underlying_ecs.sign_closing_transaction(closing_tx);
 131                             }
 132                             @Override public Result_ECDSASignatureNoneZ sign_holder_anchor_input(byte[] anchor_tx, long input) {
 133                                 return underlying_ecs.sign_holder_anchor_input(anchor_tx, input);
 134                             }
 135                             @Override public Result_ECDSASignatureNoneZ sign_channel_announcement_with_funding_key(UnsignedChannelAnnouncement msg) {
 136                                 return underlying_ecs.sign_channel_announcement_with_funding_key(msg);
 137                             }
 138                         };
 139                         WriteableEcdsaChannelSigner.WriteableEcdsaChannelSignerInterface wecsi = new WriteableEcdsaChannelSigner.WriteableEcdsaChannelSignerInterface() {
 140                             @Override public byte[] write() { return underlying_wecs.write(); }
 141                         };
 142                         WriteableEcdsaChannelSigner resp = WriteableEcdsaChannelSigner.new_impl(wecsi, ecsi, csi, underlying_cs.get_pubkeys());
 143                         must_free_objs.add(new WeakReference<>(wecsi));
 144                         must_free_objs.add(new WeakReference<>(ecsi));
 145                         must_free_objs.add(new WeakReference<>(csi));
 146                         must_free_objs.add(new WeakReference<>(resp));
 147                         must_free_objs.add(new WeakReference<>(underlying_wecs));
 148                         must_free_objs.add(new WeakReference<>(underlying_ecs));
 149                         must_free_objs.add(new WeakReference<>(underlying_cs));
 150                         return resp;
 151                     }
 152                 }
 153
 154                 @Override
 155                 public Result_WriteableEcdsaChannelSignerDecodeErrorZ read_chan_signer(byte[] reader) {
 156                     return underlying_sp.read_chan_signer(reader);
 157                 }
 158             });
 159         }
 160
 161         Watch get_manual_watch() {
 162             Watch.WatchInterface watch_impl = new Watch.WatchInterface() {
 163                 public Result_ChannelMonitorUpdateStatusNoneZ watch_channel(OutPoint funding_txo, ChannelMonitor monitor) {
 164                     synchronized (monitors) {
 165                         assert monitors.put(Arrays.toString(funding_txo.get_txid()), monitor) == null;
 166                     }
 167                     return Result_ChannelMonitorUpdateStatusNoneZ.ok(ChannelMonitorUpdateStatus.LDKChannelMonitorUpdateStatus_Completed);
 168                 }
 169
 170                 public ChannelMonitorUpdateStatus update_channel(OutPoint funding_txo, ChannelMonitorUpdate update) {
 171                     synchronized (monitors) {
 172                         String txid = Arrays.toString(funding_txo.get_txid());
 173                         assert monitors.containsKey(txid);
 174                         Result_NoneNoneZ update_res = monitors.get(txid).update_monitor(update, tx_broadcaster, fee_estimator, logger);
 175                         assert update_res instanceof Result_NoneNoneZ.Result_NoneNoneZ_OK;
 176                     }
 177                     return ChannelMonitorUpdateStatus.LDKChannelMonitorUpdateStatus_Completed;
 178                 }
 179
 180                 @Override
 181                 public ThreeTuple_OutPointCVec_MonitorEventZPublicKeyZ[] release_pending_monitor_events() {
 182                     synchronized (monitors) {
 183                         assert monitors.size() <= 1;
 184                         for (ChannelMonitor mon : monitors.values()) {
 185                             ThreeTuple_OutPointCVec_MonitorEventZPublicKeyZ[] res = new ThreeTuple_OutPointCVec_MonitorEventZPublicKeyZ[1];
 186                             res[0] = ThreeTuple_OutPointCVec_MonitorEventZPublicKeyZ.of(mon.get_funding_txo().get_a(), mon.get_and_clear_pending_monitor_events(), mon.get_counterparty_node_id());
 187                             return res;
 188                         }
 189                     }
 190                     return new ThreeTuple_OutPointCVec_MonitorEventZPublicKeyZ[0];
 191                 }
 192             };
 193             Watch watch = Watch.new_impl(watch_impl);
 194             must_free_objs.add(new WeakReference<>(watch_impl));
 195             must_free_objs.add(new WeakReference<>(watch));
 196             return watch;
 197         }
 198
 199         UserConfig get_config() {
 200             ChannelHandshakeConfig channel_config = ChannelHandshakeConfig.with_default();
 201             channel_config.set_announced_channel(true);
 202             UserConfig config = UserConfig.with_default();
 203             config.set_channel_handshake_config(channel_config);
 204             return config;
 205         }
 206
 207         NioPeerHandler nio_peer_handler;
 208         short nio_port;
 209         final byte seed;
 210         final byte[] key_seed = new byte[32];
 211         final Logger logger;
 212         final FeeEstimator fee_estimator;
 213         final BroadcasterInterface tx_broadcaster;
 214         final KeysManager explicit_keys_manager;
 215         final NodeSigner node_signer;
 216         final SignerProvider signer_provider;
 217         final EntropySource entropy_source;
 218         final ChainMonitor chain_monitor;
 219         NetworkGraph net_graph;
 220         P2PGossipSync route_handler;
 221         final Watch chain_watch;
 222         final HashSet<String> filter_additions;
 223         Option_FilterZ filter;
 224         ChannelManager chan_manager;
 225         PeerManager peer_manager;
 226         final HashMap<String, ChannelMonitor> monitors; // Wow I forgot just how terrible Java is - we can't put a byte array here.
 227         byte[] node_id;
 228         byte[] connected_peer_node_id = null;
 229         final LinkedList<byte[]> broadcast_set = new LinkedList<>();
 230         final LinkedList<Event> pending_manager_events = new LinkedList<>();
 231         private final CustomMessageHandler custom_message_handler;
 232         final LinkedList<byte[]> received_custom_messages = new LinkedList<>();
 233         final LinkedList<byte[]> custom_messages_to_send = new LinkedList<>();
 234         ChannelManagerConstructor constructor = null;
 235         long network_graph_persists = 0;
 236         GcCheck obj = new GcCheck();
 237
 238         private ChannelMonitor test_mon_roundtrip(OutPoint expected_id, byte[] data) {
 239             // Because get_funding_txo() returns an OutPoint in a tuple that is a reference to an OutPoint inside the
 240             // ChannelMonitor, its a good test to ensure that the OutPoint isn't freed (or is cloned) before the
 241             // ChannelMonitor is. This used to be broken.
 242             Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ roundtrip_monitor = UtilMethods.C2Tuple_ThirtyTwoBytesChannelMonitorZ_read(data, this.entropy_source, this.signer_provider);
 243             assert roundtrip_monitor instanceof Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ.Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ_OK;
 244             must_free_objs.add(new WeakReference<>(roundtrip_monitor));
 245             TwoTuple_OutPointCVec_u8ZZ funding_txo = ((Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ.Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ_OK) roundtrip_monitor).res.get_b().get_funding_txo();
 246             must_free_objs.add(new WeakReference<>(funding_txo));
 247             System.gc(); System.runFinalization(); // Give the GC a chance to run.
 248             assert Arrays.equals(funding_txo.get_a().get_txid(), expected_id.get_txid());
 249             assert funding_txo.get_a().get_index() == expected_id.get_index();
 250             Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ roundtrip_two = UtilMethods.C2Tuple_ThirtyTwoBytesChannelMonitorZ_read(data, this.entropy_source, this.signer_provider);
 251             assert roundtrip_two instanceof Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ.Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ_OK;
 252             must_free_objs.add(new WeakReference<>(((Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ.Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ_OK) roundtrip_two).res.get_b()));
 253             must_free_objs.add(new WeakReference<>(((Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ.Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ_OK) roundtrip_two).res));
 254             must_free_objs.add(new WeakReference<>(roundtrip_two));
 255             return ((Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ.Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ_OK) roundtrip_two).res.get_b();
 256         }
 257
 258         private Peer(Object _dummy, byte seed) {
 259             logger = Logger.new_impl((org.ldk.structs.Record arg)->{
 260                 if (arg.get_level() == Level.LDKLevel_Error)
 261                     System.err.println(seed + ": " + arg.get_module_path() + " - " + arg.get_args());
 262                 else
 263                     System.out.println(seed + ": " + arg.get_module_path() + " - " + arg.get_args());
 264             });
 265             fee_estimator = FeeEstimator.new_impl((confirmation_target -> 253));
 266             tx_broadcaster = BroadcasterInterface.new_impl(txn -> {
 267                 synchronized (broadcast_set) {
 268                     for (byte[] tx : txn){
 269                         broadcast_set.add(tx);
 270                     }
 271                     broadcast_set.notifyAll();
 272                 }
 273             });
 274             monitors = new HashMap<>();
 275             this.seed = seed;
 276             Persist persister = Persist.new_impl(new Persist.PersistInterface() {
 277                 @Override
 278                 public ChannelMonitorUpdateStatus persist_new_channel(OutPoint id, ChannelMonitor data, MonitorUpdateId update_id) {
 279                     synchronized (monitors) {
 280                         String key = Arrays.toString(id.to_channel_id());
 281                         ChannelMonitor res = test_mon_roundtrip(id, data.write());
 282                         assert monitors.put(key, res) == null;
 283                     }
 284                     return ChannelMonitorUpdateStatus.LDKChannelMonitorUpdateStatus_Completed;
 285                 }
 286
 287                 @Override
 288                 public ChannelMonitorUpdateStatus update_persisted_channel(OutPoint id, ChannelMonitorUpdate update, ChannelMonitor data, MonitorUpdateId update_id) {
 289                     synchronized (monitors) {
 290                         String key = Arrays.toString(id.to_channel_id());
 291                         ChannelMonitor res = test_mon_roundtrip(id, data.write());
 292                         // Note that we use a serialization-roundtrip copy of data here, not the original, as this can
 293                         // expose the JVM JIT bug where it finalize()s things still being called.
 294                         assert monitors.put(key, res) != null;
 295                     }
 296                     return ChannelMonitorUpdateStatus.LDKChannelMonitorUpdateStatus_Completed;
 297                 }
 298             });
 299
 300             filter_additions = new HashSet<>();
 301             if (use_filter) {
 302                 this.filter = Option_FilterZ.some(Filter.new_impl(new Filter.FilterInterface() {
 303                     @Override public void register_tx(byte[] txid, byte[] script_pubkey) {
 304                         filter_additions.add(Arrays.toString(txid));
 305                     }
 306                     @Override public void register_output(WatchedOutput output) {
 307                         filter_additions.add(Arrays.toString(output.get_outpoint().get_txid()) + ":" + output.get_outpoint().get_index());
 308                     }
 309                 }));
 310             } else {
 311                 this.filter = Option_FilterZ.none();
 312             }
 313
 314             if (use_manual_watch) {
 315                 chain_watch = get_manual_watch();
 316                 chain_monitor = null;
 317             } else {
 318                 chain_monitor = ChainMonitor.of(filter, tx_broadcaster, logger, fee_estimator, persister);
 319                 chain_watch = chain_monitor.as_Watch();
 320             }
 321
 322             for (byte i = 0; i < 32; i++) {
 323                 key_seed[i] = (byte) (i ^ seed);
 324             }
 325             KeysManager keys = KeysManager.of(key_seed, System.currentTimeMillis() / 1000, (int) (System.currentTimeMillis() * 1000));
 326             if (use_km_wrapper) {
 327                 this.signer_provider = manual_signer_provider(keys);
 328                 this.node_signer = manual_node_signer(keys);
 329                 this.entropy_source = EntropySource.new_impl(new EntropySource.EntropySourceInterface() {
 330                     @Override public byte[] get_secure_random_bytes() { return keys.as_EntropySource().get_secure_random_bytes(); }
 331                 });
 332                 this.explicit_keys_manager = null;
 333             } else {
 334                 this.signer_provider = keys.as_SignerProvider();
 335                 this.entropy_source = keys.as_EntropySource();
 336                 this.node_signer = keys.as_NodeSigner();
 337                 this.explicit_keys_manager = keys;
 338             }
 339
 340             this.custom_message_handler = CustomMessageHandler.new_impl(new CustomMessageHandler.CustomMessageHandlerInterface() {
 341                 @Override
 342                 public Result_NoneLightningErrorZ handle_custom_message(Type msg, byte[] sender_node_id) {
 343                     synchronized (received_custom_messages) {
 344                         received_custom_messages.add(msg.write());
 345                         received_custom_messages.notifyAll();
 346                     }
 347                     return Result_NoneLightningErrorZ.ok();
 348                 }
 349
 350                 @Override
 351                 public TwoTuple_PublicKeyTypeZ[] get_and_clear_pending_msg() {
 352                     byte[][] bytes;
 353                     synchronized (custom_messages_to_send) {
 354                         bytes = custom_messages_to_send.toArray(new byte[0][0]);
 355                         custom_messages_to_send.clear();
 356                     }
 357                     TwoTuple_PublicKeyTypeZ[] ret = new TwoTuple_PublicKeyTypeZ[bytes.length];
 358                     for (int i = 0; i < bytes.length; i++) {
 359                         final int msg_idx = i;
 360                         ret[i] = TwoTuple_PublicKeyTypeZ.of(connected_peer_node_id, Type.new_impl(new Type.TypeInterface() {
 361                             @Override public short type_id() { return 4096; }
 362                             @Override public String debug_str() { return "Custom Java Message"; }
 363                             @Override public byte[] write() { return bytes[msg_idx]; }
 364                         }));
 365                     }
 366                     return ret;
 367                 }
 368                 @Override public NodeFeatures provided_node_features() {
 369                     return NodeFeatures.empty();
 370                 }
 371                 @Override public InitFeatures provided_init_features(byte[] their_node_id) {
 372                     return InitFeatures.empty();
 373                 }
 374             }, (message_type, buffer) -> {
 375                 assert message_type == 4096;
 376                 return Result_COption_TypeZDecodeErrorZ.ok(Option_TypeZ.some(Type.new_impl(new Type.TypeInterface() {
 377                     @Override public short type_id() { return 4096; }
 378                     @Override public String debug_str() { return "Custom Java-Decoded Message"; }
 379                     @Override public byte[] write() { return buffer; }
 380                 })));
 381             });
 382         }
 383         private void bind_nio() {
 384             if (!use_nio_peer_handler) return;
 385             if (use_chan_manager_constructor) {
 386                 this.nio_peer_handler = this.constructor.nio_peer_handler;
 387             } else {
 388                 try { this.nio_peer_handler = new NioPeerHandler(peer_manager); } catch (IOException e) { assert false; }
 389             }
 390             for (short i = 10_000; true; i++) {
 391                 try {
 392                     nio_peer_handler.bind_listener(new InetSocketAddress("127.0.0.1", i));
 393                     nio_port = i;
 394                     break;
 395                 } catch (IOException e) { assert i < 10_500; }
 396             }
 397         }
 398         private void setup_route_handler() {
 399             this.route_handler = P2PGossipSync.of(this.net_graph,
 400                 Option_UtxoLookupZ.some(UtxoLookup.new_impl((genesis_hash, short_channel_id) -> UtxoResult.sync(Result_TxOutUtxoLookupErrorZ.ok(gossip_txout)))), this.logger);
 401         }
 402         Peer(byte seed) {
 403             this(null, seed);
 404             this.net_graph = NetworkGraph.of(Network.LDKNetwork_Bitcoin, this.logger);
 405             this.setup_route_handler();
 406
 407             if (use_chan_manager_constructor) {
 408                 this.constructor = new ChannelManagerConstructor(Network.LDKNetwork_Bitcoin, get_config(), new byte[32], 0,
 409                         this.explicit_keys_manager.as_EntropySource(), this.explicit_keys_manager.as_NodeSigner(), this.explicit_keys_manager.as_SignerProvider(),
 410                         this.fee_estimator, this.chain_monitor, this.net_graph,
 411                         ProbabilisticScoringDecayParameters.with_default(), ProbabilisticScoringFeeParameters.with_default(),
 412                         (ChannelManagerConstructor.RouterWrapper)
 413                             (payer_node_id, route_params, first_hops, inflight_htlcs, payment_hash, payment_id, default_router) -> {
 414                                 assert payment_hash != null && payment_id != null;
 415                                 Router r = default_router.as_Router();
 416                                 must_free_objs.add(new WeakReference<>(r));
 417                                 return r.find_route_with_id(payer_node_id, route_params, first_hops, inflight_htlcs, payment_hash, payment_id);
 418                             },
 419                         this.tx_broadcaster, this.logger);
 420                 constructor.chain_sync_completed(new ChannelManagerConstructor.EventHandler() {
 421                     @Override public void handle_event(Event event) {
 422                         synchronized (pending_manager_events) {
 423                             pending_manager_events.add(event);
 424                             pending_manager_events.notifyAll();
 425                         }
 426                     }
 427                     @Override public void persist_manager(byte[] channel_manager_bytes) { assert channel_manager_bytes.length > 1; }
 428                     @Override public void persist_network_graph(byte[] graph_bytes) { assert graph_bytes.length > 1; network_graph_persists += 1; }
 429                     @Override public void persist_scorer(byte[] scorer_bytes) { assert scorer_bytes.length > 1; }
 430                 }, !use_ignore_handler);
 431                 this.chan_manager = constructor.channel_manager;
 432                 this.peer_manager = constructor.peer_manager;
 433                 must_free_objs.add(new WeakReference<>(this.chan_manager));
 434             } else {
 435                 Router router = Router.new_impl(new Router.RouterInterface() {
 436                     @Override
 437                     public Result_RouteLightningErrorZ find_route_with_id(byte[] payer, RouteParameters route_params, ChannelDetails[] first_hops, InFlightHtlcs inflight_htlcs, byte[] _payment_hash, byte[] _payment_id) {
 438                         return find_route(payer, route_params, first_hops, inflight_htlcs);
 439                     }
 440
 441                     @Override
 442                     public Result_RouteLightningErrorZ find_route(byte[] payer, RouteParameters params, ChannelDetails[] first_hops, InFlightHtlcs inflight_htlcs) {
 443                         while (true) {
 444                             try (ReadOnlyNetworkGraph graph = net_graph.read_only()) {
 445                                 assert graph.channel(424242) == null;
 446                                 long[] channels = graph.list_channels();
 447                                 if (channels.length != 1) {
 448                                     // If we're using a NioPeerHandler, the handling of announcement signatures and
 449                                     // channel broadcasting may be done async, so just wait until the channel shows up.
 450                                     assert use_nio_peer_handler;
 451                                     continue;
 452                                 }
 453                                 ChannelInfo chan = graph.channel(channels[0]);
 454                                 assert Arrays.equals(chan.get_node_one().as_slice(), chan.get_node_one().write());
 455                                 assert Arrays.equals(chan.get_node_one().as_slice(), chan_manager.get_our_node_id()) ||
 456                                         Arrays.equals(chan.get_node_two().as_slice(), chan_manager.get_our_node_id());
 457                                 break;
 458                             }
 459                         }
 460                         return UtilMethods.find_route(payer, params, net_graph, first_hops, logger, ScoreLookUp.new_impl(new ScoreLookUp.ScoreLookUpInterface() {
 461                             @Override public long channel_penalty_msat(long short_channel_id, NodeId source, NodeId target, ChannelUsage usage, ProbabilisticScoringFeeParameters params) { return 0; }
 462                         }), ProbabilisticScoringFeeParameters.with_default(), new byte[32]);
 463                     }
 464                 });
 465                 ChainParameters params = ChainParameters.of(Network.LDKNetwork_Bitcoin, BestBlock.of(new byte[32], 0));
 466                 this.chan_manager = ChannelManager.of(this.fee_estimator, chain_watch, tx_broadcaster, router, logger,
 467                     this.entropy_source, this.node_signer, this.signer_provider, get_config(), params,
 468                         (int)(System.currentTimeMillis() / 1000));
 469                 this.peer_manager = PeerManager.of(chan_manager.as_ChannelMessageHandler(), route_handler.as_RoutingMessageHandler(),
 470                         IgnoringMessageHandler.of().as_OnionMessageHandler(), this.custom_message_handler, 0xdeadbeef,
 471                         this.entropy_source.get_secure_random_bytes(), logger, this.node_signer);
 472            }
 473
 474             this.node_id = chan_manager.get_our_node_id();
 475             this.filter = null;
 476             bind_nio();
 477             System.gc();
 478         }
 479
 480         Object ptr_to;
 481         Peer(Peer orig) {
 482             this(null, orig.seed);
 483             if (use_chan_manager_constructor) {
 484                 byte[][] monitors = {orig.monitors.values().stream().iterator().next().write()};
 485                 byte[] serialized = orig.chan_manager.write();
 486                 byte[] serialized_graph = orig.net_graph.write();
 487                 byte[] serialized_scorer = orig.constructor.scorer.write();
 488                 try {
 489                     Filter filter_nullable = null;
 490                     if (this.filter instanceof Option_FilterZ.Some) {
 491                         filter_nullable = ((Option_FilterZ.Some) this.filter).some;
 492                     }
 493                     this.constructor = new ChannelManagerConstructor(serialized, monitors, get_config(),
 494                         this.explicit_keys_manager.as_EntropySource(), this.explicit_keys_manager.as_NodeSigner(), this.explicit_keys_manager.as_SignerProvider(),
 495                         this.fee_estimator, this.chain_monitor, filter_nullable,
 496                             serialized_graph, ProbabilisticScoringDecayParameters.with_default(),
 497                             ProbabilisticScoringFeeParameters.with_default(), serialized_scorer, null,
 498                             this.tx_broadcaster, this.logger);
 499                     try {
 500                         // Test that ChannelManagerConstructor correctly rejects duplicate ChannelMonitors
 501                         byte[][] monitors_dupd = new byte[2][];
 502                         monitors_dupd[0] = monitors[0];
 503                         monitors_dupd[1] = monitors[0];
 504                         ChannelManagerConstructor constr = new ChannelManagerConstructor(serialized, monitors_dupd, get_config(),
 505                             this.explicit_keys_manager.as_EntropySource(), this.explicit_keys_manager.as_NodeSigner(), this.explicit_keys_manager.as_SignerProvider(),
 506                             this.fee_estimator, this.chain_monitor, filter_nullable,
 507                                 serialized_graph, ProbabilisticScoringDecayParameters.with_default(),
 508                                 ProbabilisticScoringFeeParameters.with_default(), serialized_scorer, null,
 509                                 this.tx_broadcaster, this.logger);
 510                         assert false;
 511                     } catch (ChannelManagerConstructor.InvalidSerializedDataException e) {}
 512                     this.net_graph = this.constructor.net_graph;
 513                     setup_route_handler();
 514                     constructor.chain_sync_completed(new ChannelManagerConstructor.EventHandler() {
 515                         @Override public void handle_event(Event event) {
 516                             synchronized (pending_manager_events) {
 517                                 pending_manager_events.add(event);
 518                                 pending_manager_events.notifyAll();
 519                             }
 520                         }
 521                         @Override public void persist_manager(byte[] channel_manager_bytes) { assert channel_manager_bytes.length > 1; }
 522                         @Override public void persist_network_graph(byte[] graph_bytes) { assert graph_bytes.length > 1; network_graph_persists += 1; }
 523                         @Override public void persist_scorer(byte[] scorer_bytes) { assert scorer_bytes.length > 1; }
 524                     }, !use_ignore_handler);
 525                     this.chan_manager = constructor.channel_manager;
 526                     this.peer_manager = constructor.peer_manager;
 527                     must_free_objs.add(new WeakReference<>(this.chan_manager));
 528                     // If we are using a ChannelManagerConstructor, we may have pending events waiting on the old peer
 529                     // which have been removed from the ChannelManager but which we still need to handle.
 530                     this.pending_manager_events.addAll(orig.pending_manager_events);
 531                     if (!this.pending_manager_events.isEmpty()) {
 532                         // However, this implies cross_reload_ref_pollution
 533                         cross_reload_ref_pollution = true;
 534                     }
 535                 } catch (ChannelManagerConstructor.InvalidSerializedDataException e) {
 536                     assert false;
 537                 }
 538             } else {
 539                 this.net_graph = NetworkGraph.of(Network.LDKNetwork_Bitcoin, this.logger);
 540                 Router router = Router.new_impl(new Router.RouterInterface() {
 541                     @Override
 542                     public Result_RouteLightningErrorZ find_route_with_id(byte[] payer, RouteParameters route_params, ChannelDetails[] first_hops, InFlightHtlcs inflight_htlcs, byte[] _payment_hash, byte[] _payment_id) {
 543                         return find_route(payer, route_params, first_hops, inflight_htlcs);
 544                     }
 545
 546                     @Override
 547                     public Result_RouteLightningErrorZ find_route(byte[] payer, RouteParameters params, ChannelDetails[] first_hops, InFlightHtlcs inflight_htlcs) {
 548                         while (true) {
 549                             try (ReadOnlyNetworkGraph graph = net_graph.read_only()) {
 550                                 assert graph.channel(424242) == null;
 551                                 long[] channels = graph.list_channels();
 552                                 if (channels.length != 1) {
 553                                     // If we're using a NioPeerHandler, the handling of announcement signatures and
 554                                     // channel broadcasting may be done async, so just wait until the channel shows up.
 555                                     assert use_nio_peer_handler;
 556                                     continue;
 557                                 }
 558                                 ChannelInfo chan = graph.channel(channels[0]);
 559                                 assert Arrays.equals(chan.get_node_one().as_slice(), chan.get_node_one().write());
 560                                 assert Arrays.equals(chan.get_node_one().as_slice(), chan_manager.get_our_node_id()) ||
 561                                         Arrays.equals(chan.get_node_two().as_slice(), chan_manager.get_our_node_id());
 562                                 break;
 563                             }
 564                         }
 565                         return UtilMethods.find_route(payer, params, net_graph, first_hops, logger, ScoreLookUp.new_impl(new ScoreLookUp.ScoreLookUpInterface() {
 566                             @Override public long channel_penalty_msat(long short_channel_id, NodeId source, NodeId target, ChannelUsage usage, ProbabilisticScoringFeeParameters params) { return 0; }
 567                         }), ProbabilisticScoringFeeParameters.with_default(), new byte[32]);
 568                     }
 569                 });
 570                 this.setup_route_handler();
 571                 ChannelMonitor[] monitors = new ChannelMonitor[1];
 572                 assert orig.monitors.size() == 1;
 573                 if (!break_cross_peer_refs) {
 574                     monitors[0] = orig.monitors.values().stream().iterator().next();
 575                 } else {
 576                     byte[] serialized = orig.monitors.values().stream().iterator().next().write();
 577                     Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ res =
 578                             UtilMethods.C2Tuple_ThirtyTwoBytesChannelMonitorZ_read(serialized, this.entropy_source, this.signer_provider);
 579                     assert res instanceof Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ.Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ_OK;
 580                     monitors[0] = ((Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ.Result_C2Tuple_ThirtyTwoBytesChannelMonitorZDecodeErrorZ_OK) res).res.get_b();
 581                 }
 582                 byte[] serialized = orig.chan_manager.write();
 583                 Result_C2Tuple_ThirtyTwoBytesChannelManagerZDecodeErrorZ read_res =
 584                         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);
 585                 assert read_res instanceof Result_C2Tuple_ThirtyTwoBytesChannelManagerZDecodeErrorZ.Result_C2Tuple_ThirtyTwoBytesChannelManagerZDecodeErrorZ_OK;
 586                 this.chan_manager = ((Result_C2Tuple_ThirtyTwoBytesChannelManagerZDecodeErrorZ.Result_C2Tuple_ThirtyTwoBytesChannelManagerZDecodeErrorZ_OK) read_res).res.get_b();
 587                 this.chain_watch.watch_channel(monitors[0].get_funding_txo().get_a(), monitors[0]);
 588                 this.peer_manager = PeerManager.of(chan_manager.as_ChannelMessageHandler(), route_handler.as_RoutingMessageHandler(),
 589                         IgnoringMessageHandler.of().as_OnionMessageHandler(), this.custom_message_handler,
 590                         (int)(System.currentTimeMillis() / 1000), this.entropy_source.get_secure_random_bytes(),
 591                         logger, this.node_signer);
 592                 if (!break_cross_peer_refs && (use_manual_watch || use_km_wrapper)) {
 593                     // When we pass monitors[0] into chain_watch.watch_channel we create a reference from the new Peer to a
 594                     // field in the old peer, preventing freeing of the original Peer until the new Peer is freed. Thus, we
 595                     // shouldn't bother waiting for the original to be freed later on.
 596                     cross_reload_ref_pollution = true;
 597                 }
 598             }
 599             this.node_id = chan_manager.get_our_node_id();
 600             bind_nio();
 601
 602             if (cross_reload_ref_pollution) {
 603                 // This really, really needs to be handled at the bindings layer, but its rather complicated -
 604                 // ChannelSigners can be cloned and passed around without java being involved, resulting in them being
 605                 // owned by both one or more ChannelMonitors and a ChannelManager, with only one having proper pointers
 606                 // to the ChannelSigner. Ideally, the ChannelSigner would have a global reference to the Java
 607                 // implementation class, but that results in circular references. Instead, we need some ability to,
 608                 // while cloning ChannelSigners, add new references in the calling Java struct (ie ChannelMonitor) to
 609                 // the ChannelSigner.
 610                 this.ptr_to = orig.chan_manager;
 611             }
 612             this.filter = null;
 613         }
 614
 615         TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32TxOutZZZ[] connect_block(Block b, int height, long expected_monitor_update_len) {
 616             byte[] header = Arrays.copyOfRange(b.bitcoinSerialize(), 0, 80);
 617             TwoTuple_usizeTransactionZ[] txn;
 618             if (b.hasTransactions()) {
 619                 assert b.getTransactions().size() == 1;
 620                 TwoTuple_usizeTransactionZ txp = TwoTuple_usizeTransactionZ.of((long) 0, b.getTransactions().get(0).bitcoinSerialize());
 621                 txn = new TwoTuple_usizeTransactionZ[]{txp};
 622             } else
 623                 txn = new TwoTuple_usizeTransactionZ[0];
 624             if (chain_monitor != null) {
 625                 chan_manager.as_Listen().block_connected(b.bitcoinSerialize(), height);
 626                 chain_monitor.as_Listen().block_connected(b.bitcoinSerialize(), height);
 627             } else {
 628                 chan_manager.as_Confirm().transactions_confirmed(header, txn, height);
 629                 chan_manager.as_Confirm().best_block_updated(header, height);
 630                 // Connect manually if we aren't using a ChainMonitor and are implementing Watch ourselves
 631                 synchronized (monitors) {
 632                     assert monitors.size() == 1;
 633                     for (ChannelMonitor mon : monitors.values()) {
 634                         TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32TxOutZZZ[] ret = mon.block_connected(header, txn, height, tx_broadcaster, fee_estimator, logger);
 635                         assert ret.length == expected_monitor_update_len;
 636                         return ret;
 637                     }
 638                 }
 639             }
 640             return null;
 641         }
 642
 643         Event[] get_monitor_events(int expected_len) {
 644             if (use_chan_manager_constructor) {
 645                 while (true) {
 646                     synchronized (this.pending_manager_events) {
 647                         if (expected_len != 0 && this.pending_manager_events.size() == expected_len) {
 648                             break;
 649                         }
 650                     }
 651                     if (expected_len == 0) {
 652                         try { Thread.sleep(500); } catch (InterruptedException e) { assert false; }
 653                         break;
 654                     } else {
 655                         Thread.yield();
 656                     }
 657                 }
 658                 synchronized (this.pending_manager_events) {
 659                     Event[] res = this.pending_manager_events.toArray(new Event[0]);
 660                     this.pending_manager_events.clear();
 661                     assert res.length == expected_len;
 662                     return res;
 663                 }
 664             } else if (chain_monitor != null) {
 665                 ArrayList<Event> l = new ArrayList<Event>();
 666                 chain_monitor.as_EventsProvider().process_pending_events(EventHandler.new_impl(l::add));
 667                 assert l.size() == expected_len;
 668                 return l.toArray(new Event[0]);
 669             } else {
 670                 synchronized (monitors) {
 671                     assert monitors.size() == 1;
 672                     for (ChannelMonitor mon : monitors.values()) {
 673                         ArrayList<Event> res = new ArrayList<Event>();
 674                         EventHandler handler = EventHandler.new_impl(new EventHandler.EventHandlerInterface() {
 675                             @Override public void handle_event(Event event) {
 676                                 res.add(event);
 677                             }
 678                         });
 679                         mon.process_pending_events(handler);
 680                         assert res.size() == expected_len;
 681                         return res.toArray(new Event[0]);
 682                     }
 683                     return null;
 684                 }
 685             }
 686         }
 687
 688         Event[] get_manager_events(int expected_len, Peer peer1, Peer peer2) {
 689             assert expected_len != 0;
 690             if (!use_nio_peer_handler) {
 691                 maybe_exchange_peer_messages(peer1, peer2);
 692             }
 693             Event[] res = new Event[0];
 694             if (use_chan_manager_constructor) {
 695                 while (res.length < expected_len) {
 696                     synchronized (this.pending_manager_events) {
 697                         if (this.pending_manager_events.size() >= expected_len) {
 698                             res = this.pending_manager_events.toArray(res);
 699                             assert res.length == expected_len;
 700                             this.pending_manager_events.clear();
 701                         }
 702                         if (res.length < expected_len) {
 703                             try { this.pending_manager_events.wait(); } catch (InterruptedException e) { assert false; }
 704                         }
 705                     }
 706                 }
 707             } else {
 708                 ArrayList<Event> l = new ArrayList<Event>();
 709                 while (l.size() < expected_len) {
 710                     Thread.yield();
 711                     if (use_nio_peer_handler) {
 712                         peer1.nio_peer_handler.check_events();
 713                         peer2.nio_peer_handler.check_events();
 714                     }
 715                     chan_manager.as_EventsProvider().process_pending_events(EventHandler.new_impl(l::add));
 716                 }
 717                 return l.toArray(new Event[0]);
 718             }
 719             assert res.length == expected_len;
 720             return res;
 721         }
 722     }
 723
 724     static class DescriptorHolder { SocketDescriptor val; }
 725
 726     boolean running = false;
 727     final LinkedList<Runnable> runqueue = new LinkedList();
 728     boolean ran = false;
 729     Thread t = new Thread(() -> {
 730             while (true) {
 731                 try {
 732                     Runnable r;
 733                     synchronized (runqueue) {
 734                         while (runqueue.isEmpty()) {
 735                             runqueue.wait();
 736                         }
 737                         running = true;
 738                         r = runqueue.pollFirst();
 739                     }
 740                     r.run();
 741                     synchronized (runqueue) {
 742                         running = false;
 743                         runqueue.notifyAll();
 744                     }
 745                 } catch (InterruptedException e) {
 746                     return;
 747                 }
 748             }
 749     });
 750
 751     void maybe_exchange_peer_messages(Peer peer1, Peer peer2) {
 752         if (!use_nio_peer_handler) {
 753             while (true) {
 754                 peer1.peer_manager.process_events();
 755                 peer2.peer_manager.process_events();
 756                 synchronized (runqueue) {
 757                     if (runqueue.isEmpty() && !running) {
 758                         if (ran) {
 759                             ran = false;
 760                             continue;
 761                         } else { break; }
 762                     }
 763                     try { runqueue.wait(); } catch (InterruptedException e) { assert false; }
 764                 }
 765             }
 766         } else if (!use_chan_manager_constructor) {
 767             peer1.nio_peer_handler.check_events();
 768             peer2.nio_peer_handler.check_events();
 769         }
 770     }
 771     void do_disconnect_event(PeerManager pm, SocketDescriptor descriptor) {
 772         if (!t.isAlive()) t.start();
 773         synchronized (runqueue) {
 774             ran = true;
 775             runqueue.add(() -> {
 776                 pm.socket_disconnected(descriptor);
 777             });
 778             runqueue.notifyAll();
 779         }
 780     }
 781     void do_read_event(PeerManager pm, SocketDescriptor descriptor, byte[] data) {
 782         if (!t.isAlive()) t.start();
 783         synchronized (runqueue) {
 784             ran = true;
 785             runqueue.add(() -> {
 786                 Result_boolPeerHandleErrorZ res = pm.read_event(descriptor, data);
 787                 assert res instanceof Result_boolPeerHandleErrorZ.Result_boolPeerHandleErrorZ_OK;
 788             });
 789             runqueue.notifyAll();
 790         }
 791         must_free_objs.add(new WeakReference<>(data));
 792     }
 793
 794     void connect_peers(final Peer peer1, final Peer peer2) {
 795         peer2.connected_peer_node_id = peer1.node_id;
 796         peer1.connected_peer_node_id = peer2.node_id;
 797         if (use_nio_peer_handler) {
 798             try {
 799                 peer1.nio_peer_handler.connect(peer2.chan_manager.get_our_node_id(), new InetSocketAddress("127.0.0.1", peer2.nio_port), 100);
 800             } catch (IOException e) { assert false; }
 801             while (peer1.peer_manager.get_peer_node_ids().length == 0 || peer2.peer_manager.get_peer_node_ids().length == 0) {
 802                 Thread.yield();
 803             }
 804         } else {
 805             DescriptorHolder descriptor1 = new DescriptorHolder();
 806             DescriptorHolder descriptor1ref = descriptor1;
 807             SocketDescriptor descriptor2 = SocketDescriptor.new_impl(new SocketDescriptor.SocketDescriptorInterface() {
 808                 @Override
 809                 public long send_data(byte[] data, boolean resume_read) {
 810                     do_read_event(peer1.peer_manager, descriptor1ref.val, data);
 811                     return data.length;
 812                 }
 813
 814                 @Override public void disconnect_socket() { do_disconnect_event(peer1.peer_manager, descriptor1ref.val); }
 815                 @Override public boolean eq(SocketDescriptor other_arg) { return other_arg.hash() == 2; }
 816                 @Override public long hash() { return 2; }
 817             });
 818
 819             descriptor1.val = SocketDescriptor.new_impl(new SocketDescriptor.SocketDescriptorInterface() {
 820                 @Override
 821                 public long send_data(byte[] data, boolean resume_read) {
 822                     do_read_event(peer2.peer_manager, descriptor2, data);
 823                     return data.length;
 824                 }
 825
 826                 @Override public void disconnect_socket() { do_disconnect_event(peer2.peer_manager, descriptor2); }
 827                 @Override public boolean eq(SocketDescriptor other_arg) { return other_arg.hash() == 1; }
 828                 @Override public long hash() { return 1; }
 829             });
 830
 831             Result_CVec_u8ZPeerHandleErrorZ conn_res = peer1.peer_manager.new_outbound_connection(peer2.node_id, descriptor1.val, Option_SocketAddressZ.none());
 832             assert conn_res instanceof Result_CVec_u8ZPeerHandleErrorZ.Result_CVec_u8ZPeerHandleErrorZ_OK;
 833
 834             Result_NonePeerHandleErrorZ inbound_conn_res = peer2.peer_manager.new_inbound_connection(descriptor2, Option_SocketAddressZ.none());
 835             assert inbound_conn_res instanceof Result_NonePeerHandleErrorZ.Result_NonePeerHandleErrorZ_OK;
 836             do_read_event(peer2.peer_manager, descriptor2, ((Result_CVec_u8ZPeerHandleErrorZ.Result_CVec_u8ZPeerHandleErrorZ_OK) conn_res).res);
 837
 838             maybe_exchange_peer_messages(peer1, peer2);
 839         }
 840     }
 841
 842     TestState do_test_message_handler() throws InterruptedException {
 843         Peer peer1 = new Peer((byte) 1);
 844         Peer peer2 = new Peer((byte) 2);
 845
 846         connect_peers(peer1, peer2);
 847
 848         UInt128 user_id = new UInt128(new byte[] {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16});
 849
 850         Result_ThirtyTwoBytesAPIErrorZ cc_res = peer1.chan_manager.create_channel(peer2.node_id, 100000, 1000, user_id, null);
 851         assert cc_res instanceof Result_ThirtyTwoBytesAPIErrorZ.Result_ThirtyTwoBytesAPIErrorZ_OK;
 852
 853         // Previously, this was a SEGFAULT instead of get_funding_txo() returning null.
 854         ChannelDetails pre_funding_chan = peer1.chan_manager.list_channels()[0];
 855         assert pre_funding_chan.get_funding_txo() == null;
 856
 857         Event[] events = peer1.get_manager_events(1, peer1, peer2);
 858         assert events[0] instanceof Event.FundingGenerationReady;
 859         assert ((Event.FundingGenerationReady) events[0]).channel_value_satoshis == 100000;
 860         assert ((Event.FundingGenerationReady) events[0]).user_channel_id.equals(user_id);
 861         byte[] funding_spk = ((Event.FundingGenerationReady) events[0]).output_script;
 862         assert funding_spk.length == 34 && funding_spk[0] == 0 && funding_spk[1] == 32; // P2WSH
 863         byte[] chan_id = ((Event.FundingGenerationReady) events[0]).temporary_channel_id;
 864
 865         BitcoinNetworkParams bitcoinj_net = BitcoinNetworkParams.of(BitcoinNetwork.MAINNET);
 866
 867         Transaction funding_input = new Transaction(bitcoinj_net);
 868         funding_input.addOutput(Coin.SATOSHI.multiply(100000), new Script(funding_spk));
 869         Transaction funding = new Transaction(bitcoinj_net);
 870         funding.addInput(funding_input.getOutput(0));
 871         funding.getInputs().get(0).setWitness(new TransactionWitness(2)); // Make sure we don't complain about lack of witness
 872         funding.getInput(0).getWitness().setPush(0, new byte[]{0x1});
 873         funding.addOutput(Coin.SATOSHI.multiply(100000), new Script(funding_spk));
 874         Result_NoneAPIErrorZ funding_res = peer1.chan_manager.funding_transaction_generated(chan_id, peer2.node_id, funding.bitcoinSerialize());
 875         assert funding_res instanceof Result_NoneAPIErrorZ.Result_NoneAPIErrorZ_OK;
 876
 877         gossip_txout = new TxOut(100000, funding_spk);
 878
 879         maybe_exchange_peer_messages(peer1, peer2);
 880         synchronized (peer1.broadcast_set) {
 881             while (peer1.broadcast_set.size() != 1) {
 882                 peer1.broadcast_set.wait();
 883             }
 884         }
 885
 886         events = peer1.get_manager_events(1, peer1, peer2);
 887         assert events[0] instanceof Event.ChannelPending;
 888
 889         events = peer2.get_manager_events(1, peer1, peer2);
 890         assert events[0] instanceof Event.ChannelPending;
 891
 892         assert peer1.broadcast_set.size() == 1;
 893         assert Arrays.equals(peer1.broadcast_set.get(0), funding.bitcoinSerialize());
 894         peer1.broadcast_set.clear();
 895
 896         Block b = new Block(bitcoinj_net, 2, Sha256Hash.ZERO_HASH, Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
 897         peer1.connect_block(b, 1, 0);
 898         peer2.connect_block(b, 1, 0);
 899
 900         for (int height = 2; height < 10; height++) {
 901             b = new Block(bitcoinj_net, 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[0]));
 902             peer1.connect_block(b, height, 0);
 903             peer2.connect_block(b, height, 0);
 904         }
 905
 906         maybe_exchange_peer_messages(peer1, peer2);
 907         while (peer1.chan_manager.list_usable_channels().length != 1 || peer2.chan_manager.list_usable_channels().length != 1) ;
 908
 909         events = peer1.get_manager_events(1, peer1, peer2);
 910         assert events[0] instanceof Event.ChannelReady;
 911
 912         events = peer2.get_manager_events(1, peer1, peer2);
 913         assert events[0] instanceof Event.ChannelReady;
 914
 915         ChannelDetails[] peer1_chans = peer1.chan_manager.list_usable_channels();
 916         ChannelDetails[] peer2_chans = peer2.chan_manager.list_usable_channels();
 917         assert peer1_chans.length == 1;
 918         assert peer2_chans.length == 1;
 919         assert peer1_chans[0].get_channel_value_satoshis() == 100000;
 920         assert peer1_chans[0].get_is_usable();
 921         Option_u64Z short_chan_id = peer1_chans[0].get_short_channel_id();
 922         assert short_chan_id instanceof Option_u64Z.Some;
 923         assert ((Option_u64Z.Some)short_chan_id).some == (1L << 40); // 0th output in the 0th transaction in the 1st block
 924         assert Arrays.equals(peer1_chans[0].get_channel_id(), funding.getTxId().getReversedBytes());
 925         assert Arrays.equals(peer2_chans[0].get_channel_id(), funding.getTxId().getReversedBytes());
 926
 927         // Generate a random invoice description to exercise the string conversion logic a good bit
 928         String invoice_description;
 929         char[] string_bytes = new char[16];
 930         try {
 931             new FileReader("/dev/urandom").read(string_bytes);
 932         } catch (Exception e) { assert false; }
 933         invoice_description = new String(string_bytes);
 934
 935         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());
 936         assert invoice instanceof Result_Bolt11InvoiceSignOrCreationErrorZ.Result_Bolt11InvoiceSignOrCreationErrorZ_OK;
 937         System.out.println("Got invoice: " + ((Result_Bolt11InvoiceSignOrCreationErrorZ.Result_Bolt11InvoiceSignOrCreationErrorZ_OK) invoice).res.to_str());
 938
 939         String fuck = ((Result_Bolt11InvoiceSignOrCreationErrorZ.Result_Bolt11InvoiceSignOrCreationErrorZ_OK) invoice).res.to_str();
 940         Result_Bolt11InvoiceParseOrSemanticErrorZ parsed_invoice = Bolt11Invoice.from_str(fuck);
 941 if (parsed_invoice instanceof Result_Bolt11InvoiceParseOrSemanticErrorZ.Result_Bolt11InvoiceParseOrSemanticErrorZ_Err) {
 942     System.err.println(((Result_Bolt11InvoiceParseOrSemanticErrorZ.Result_Bolt11InvoiceParseOrSemanticErrorZ_Err) parsed_invoice).err.to_str());
 943 }
 944         assert parsed_invoice instanceof Result_Bolt11InvoiceParseOrSemanticErrorZ.Result_Bolt11InvoiceParseOrSemanticErrorZ_OK;
 945         assert ((Result_Bolt11InvoiceParseOrSemanticErrorZ.Result_Bolt11InvoiceParseOrSemanticErrorZ_OK) parsed_invoice).res.fallback_addresses().length == 0;
 946         assert Arrays.equals(((Result_Bolt11InvoiceParseOrSemanticErrorZ.Result_Bolt11InvoiceParseOrSemanticErrorZ_OK) parsed_invoice).res.payment_hash(), ((Result_Bolt11InvoiceSignOrCreationErrorZ.Result_Bolt11InvoiceSignOrCreationErrorZ_OK) invoice).res.payment_hash());
 947         SignedRawBolt11Invoice signed_raw = ((Result_Bolt11InvoiceParseOrSemanticErrorZ.Result_Bolt11InvoiceParseOrSemanticErrorZ_OK) parsed_invoice).res.into_signed_raw();
 948         RawBolt11Invoice raw_invoice = signed_raw.raw_invoice();
 949         byte[] desc_hash = raw_invoice.signable_hash();
 950         Description raw_invoice_description = raw_invoice.description();
 951         String description_string = raw_invoice_description.into_inner();
 952         boolean has_null = false;
 953         for (byte db : invoice_description.getBytes())
 954             if (db == 0)
 955                 has_null = true;
 956         if (!has_null) // Null codepoints are dropped, so may fail
 957             assert description_string.equals(invoice_description);
 958
 959         // Do a trivial test of constructing a phantom invoice
 960         Result_Bolt11InvoiceSignOrCreationErrorZ phantom_invoice = UtilMethods.create_phantom_invoice(
 961                 Option_u64Z.some(42000),
 962                 Option_ThirtyTwoBytesZ.none(),
 963                 "Phantom Invoice", 7200,
 964                 new PhantomRouteHints[]{ peer2.chan_manager.get_phantom_route_hints() },
 965                 peer2.entropy_source,
 966                 PhantomKeysManager.of(peer2.key_seed, 42, 42, new byte[32]).as_NodeSigner(),
 967                 peer2.logger, Currency.LDKCurrency_Bitcoin, Option_u16Z.none(),
 968                 System.currentTimeMillis() / 1000);
 969         assert phantom_invoice.is_ok();
 970         RouteHint[] hints = ((Result_Bolt11InvoiceSignOrCreationErrorZ.Result_Bolt11InvoiceSignOrCreationErrorZ_OK)phantom_invoice).res.route_hints();
 971         assert hints.length == 1;
 972         RouteHintHop[] val = hints[0].get_a();
 973         assert hints[0].get_a().length == 1; // Our one channel is public so we should just have a single-hop hint
 974
 975         if (!use_invoice_payer) {
 976             byte[] payment_hash = ((Result_Bolt11InvoiceSignOrCreationErrorZ.Result_Bolt11InvoiceSignOrCreationErrorZ_OK) invoice).res.payment_hash();
 977             byte[] payment_secret = ((Result_Bolt11InvoiceSignOrCreationErrorZ.Result_Bolt11InvoiceSignOrCreationErrorZ_OK) invoice).res.payment_secret();
 978             byte[] dest_node_id = ((Result_Bolt11InvoiceSignOrCreationErrorZ.Result_Bolt11InvoiceSignOrCreationErrorZ_OK) invoice).res.recover_payee_pub_key();
 979             assert Arrays.equals(dest_node_id, peer2.node_id);
 980             Bolt11InvoiceFeatures invoice_features = ((Result_Bolt11InvoiceSignOrCreationErrorZ.Result_Bolt11InvoiceSignOrCreationErrorZ_OK) invoice).res.features();
 981             RouteHint[] route_hints = ((Result_Bolt11InvoiceSignOrCreationErrorZ.Result_Bolt11InvoiceSignOrCreationErrorZ_OK) invoice).res.route_hints();
 982
 983             Payee payee = Payee.clear(peer2.node_id, route_hints, invoice_features, 42);
 984             PaymentParameters pay_params = PaymentParameters.of(payee, Option_u64Z.none(), 6*24*14, (byte)1, (byte)2, new long[0]);
 985             RouteParameters route_params = RouteParameters.from_payment_params_and_value(pay_params, 10000000);
 986             Result_RouteLightningErrorZ route_res = UtilMethods.find_route(
 987                     peer1.chan_manager.get_our_node_id(), route_params, peer1.net_graph,
 988                     peer1_chans, peer1.logger,
 989                     ProbabilisticScorer.of(ProbabilisticScoringDecayParameters.with_default(), peer1.net_graph, peer1.logger).as_ScoreLookUp(),
 990                     ProbabilisticScoringFeeParameters.with_default(), new byte[32]);
 991             assert route_res instanceof Result_RouteLightningErrorZ.Result_RouteLightningErrorZ_OK;
 992             Route route = ((Result_RouteLightningErrorZ.Result_RouteLightningErrorZ_OK) route_res).res;
 993             assert route.get_paths().length == 1;
 994             assert route.get_paths()[0].get_hops().length == 1;
 995             assert route.get_paths()[0].final_value_msat() == 10000000;
 996
 997             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 };
 998             Result_NonePaymentSendFailureZ payment_res = peer1.chan_manager.send_payment_with_route(route, payment_hash, RecipientOnionFields.secret_only(payment_secret), payment_id);
 999             assert payment_res instanceof Result_NonePaymentSendFailureZ.Result_NonePaymentSendFailureZ_OK;
1000
1001             RouteHop[] hops = new RouteHop[1];
1002             byte[] hop_pubkey = new byte[33];
1003             hop_pubkey[0] = 3;
1004             hop_pubkey[1] = 42;
1005             NodeFeatures node_features = NodeFeatures.empty();
1006             ChannelFeatures channel_features = ChannelFeatures.empty();
1007             hops[0] = RouteHop.of(hop_pubkey, node_features, 42, channel_features, 100, 0, false);
1008             Path[] paths = new Path[1];
1009             paths[0] = Path.of(hops, null);
1010             Route r2 = Route.of(paths, RouteParameters.from_payment_params_and_value(pay_params, 100));
1011             payment_res = peer1.chan_manager.send_payment_with_route(r2, payment_hash, RecipientOnionFields.secret_only(payment_secret), payment_id);
1012             assert payment_res instanceof Result_NonePaymentSendFailureZ.Result_NonePaymentSendFailureZ_Err;
1013         } else {
1014             Result_ThirtyTwoBytesPaymentErrorZ send_res = UtilMethods.pay_invoice(((Result_Bolt11InvoiceParseOrSemanticErrorZ.Result_Bolt11InvoiceParseOrSemanticErrorZ_OK) parsed_invoice).res, Retry.attempts(0), peer1.chan_manager);
1015             assert send_res instanceof Result_ThirtyTwoBytesPaymentErrorZ.Result_ThirtyTwoBytesPaymentErrorZ_OK;
1016         }
1017
1018         if (reload_peers) {
1019             assert peer1.network_graph_persists == 0;
1020             assert peer2.network_graph_persists == 0;
1021             if (use_chan_manager_constructor) {
1022                 peer1.constructor.interrupt();
1023                 peer2.constructor.interrupt();
1024                 if (!use_ignore_handler) {
1025                     assert peer1.network_graph_persists >= 1;
1026                     assert peer2.network_graph_persists >= 1;
1027                 } else {
1028                     assert peer1.network_graph_persists == 0;
1029                     assert peer2.network_graph_persists == 0;
1030                 }
1031             } else if (use_nio_peer_handler) {
1032                 peer1.nio_peer_handler.interrupt();
1033                 peer2.nio_peer_handler.interrupt();
1034             }
1035             WeakReference<Peer> op1 = new WeakReference<Peer>(peer1);
1036             peer1 = new Peer(peer1);
1037             peer2 = new Peer(peer2);
1038             return new TestState(op1, peer1, peer2, b.getHash());
1039         }
1040         return new TestState(null, peer1, peer2, b.getHash());
1041     }
1042
1043     boolean cross_reload_ref_pollution = false;
1044     class TestState {
1045         private final WeakReference<Peer> ref_block;
1046         private final Peer peer1;
1047         private final Peer peer2;
1048         public Sha256Hash best_blockhash;
1049
1050         public TestState(WeakReference<Peer> ref_block, Peer peer1, Peer peer2, Sha256Hash best_blockhash) {
1051             this.ref_block = ref_block;
1052             this.peer1 = peer1;
1053             this.peer2 = peer2;
1054             this.best_blockhash = best_blockhash;
1055         }
1056     }
1057     void do_test_message_handler_b(TestState state) throws Exception {
1058         GcCheck obj = new GcCheck();
1059         if (state.ref_block != null) {
1060             // Ensure the original peers get freed before we move on. Note that we have to be in a different function
1061             // scope to do so as the (at least current OpenJDK) JRE won't release anything created in the same scope.
1062             while (!cross_reload_ref_pollution && state.ref_block.get() != null) {
1063                 System.gc();
1064                 System.runFinalization();
1065             }
1066             connect_peers(state.peer1, state.peer2);
1067         }
1068
1069         Event[] events = state.peer2.get_manager_events(1, state.peer1, state.peer2);
1070         assert events[0] instanceof Event.PendingHTLCsForwardable;
1071         state.peer2.chan_manager.process_pending_htlc_forwards();
1072
1073         events = state.peer2.get_manager_events(1, state.peer1, state.peer2);
1074         assert events[0] instanceof Event.PaymentClaimable;
1075         assert ((Event.PaymentClaimable)events[0]).purpose instanceof PaymentPurpose.InvoicePayment;
1076         assert ((PaymentPurpose.InvoicePayment) ((Event.PaymentClaimable)events[0]).purpose).payment_preimage instanceof Option_ThirtyTwoBytesZ.Some;
1077         byte[] payment_preimage = ((Option_ThirtyTwoBytesZ.Some) ((PaymentPurpose.InvoicePayment)((Event.PaymentClaimable)events[0]).purpose).payment_preimage).some;
1078         assert !Arrays.equals(payment_preimage, new byte[32]);
1079         state.peer2.chan_manager.claim_funds(payment_preimage);
1080
1081         events = state.peer2.get_manager_events(1, state.peer1, state.peer2);
1082         assert events[0] instanceof Event.PaymentClaimed;
1083         assert ((Event.PaymentClaimed)events[0]).purpose instanceof PaymentPurpose.InvoicePayment;
1084         assert ((PaymentPurpose.InvoicePayment) ((Event.PaymentClaimed)events[0]).purpose).payment_preimage instanceof  Option_ThirtyTwoBytesZ.Some;
1085         payment_preimage = ((Option_ThirtyTwoBytesZ.Some)((PaymentPurpose.InvoicePayment)((Event.PaymentClaimed)events[0]).purpose).payment_preimage).some;
1086         assert !Arrays.equals(payment_preimage, new byte[32]);
1087
1088         events = state.peer1.get_manager_events(2, state.peer1, state.peer2);
1089         assert events[0] instanceof Event.PaymentSent;
1090         assert Arrays.equals(((Event.PaymentSent) events[0]).payment_preimage, payment_preimage);
1091         assert events[1] instanceof Event.PaymentPathSuccessful;
1092         assert ((Event.PaymentPathSuccessful) events[1]).payment_hash instanceof Option_ThirtyTwoBytesZ.Some;
1093         assert Arrays.equals(((Option_ThirtyTwoBytesZ.Some) ((Event.PaymentPathSuccessful) events[1]).payment_hash).some, ((Event.PaymentSent) events[0]).payment_hash);
1094
1095         if (use_nio_peer_handler) {
1096             // We receive PaymentSent immediately upon receipt of the payment preimage, but we expect to not have an
1097             // HTLC transaction to broadcast below, which requires a bit more time to fully complete the
1098             // commitment-transaction-update dance between both peers.
1099             Thread.sleep(100);
1100         }
1101
1102         if (state.peer1.chain_monitor != null) {
1103             Balance[] peer1_balances = state.peer1.chain_monitor.get_claimable_balances(state.peer1.chan_manager.list_channels());
1104             assert peer1_balances.length == 0;
1105             Balance[] peer2_balances = state.peer2.chain_monitor.get_claimable_balances(state.peer2.chan_manager.list_channels());
1106             assert peer2_balances.length == 0;
1107         }
1108
1109         ChannelDetails[] peer1_chans = state.peer1.chan_manager.list_channels();
1110
1111         if (nice_close) {
1112             Result_NoneAPIErrorZ close_res = state.peer1.chan_manager.close_channel(peer1_chans[0].get_channel_id(), state.peer2.node_id);
1113             assert close_res instanceof Result_NoneAPIErrorZ.Result_NoneAPIErrorZ_OK;
1114             maybe_exchange_peer_messages(state.peer1, state.peer2);
1115             synchronized (state.peer1.broadcast_set) {
1116                 while (state.peer1.broadcast_set.size() != 1) state.peer1.broadcast_set.wait();
1117             }
1118             synchronized (state.peer2.broadcast_set) {
1119                 while (state.peer2.broadcast_set.size() != 1) state.peer2.broadcast_set.wait();
1120             }
1121         } else {
1122             state.peer1.chan_manager.force_close_all_channels_broadcasting_latest_txn();
1123             maybe_exchange_peer_messages(state.peer1, state.peer2);
1124             synchronized (state.peer1.broadcast_set) {
1125                 while (state.peer1.broadcast_set.size() != 1) state.peer1.broadcast_set.wait();
1126             }
1127             synchronized (state.peer2.broadcast_set) {
1128                 while (state.peer2.broadcast_set.size() != 1) state.peer2.broadcast_set.wait();
1129             }
1130         }
1131
1132         assert state.peer1.broadcast_set.size() == 1;
1133         assert state.peer2.broadcast_set.size() == 1;
1134
1135         events = state.peer2.get_manager_events(1, state.peer1, state.peer2);
1136         assert events[0] instanceof Event.ChannelClosed;
1137         events = state.peer1.get_manager_events(1, state.peer1, state.peer2);
1138         assert events[0] instanceof Event.ChannelClosed;
1139
1140         if (state.peer1.chain_monitor != null) {
1141             Balance[] peer1_balances = state.peer1.chain_monitor.get_claimable_balances(state.peer1.chan_manager.list_channels());
1142             assert peer1_balances.length == 1;
1143             for (Balance bal : peer1_balances) {
1144                 assert bal instanceof Balance.ClaimableOnChannelClose;
1145                 long expected_tx_fee = 183;
1146                 assert ((Balance.ClaimableOnChannelClose) bal).amount_satoshis == 100000 - 1 - 10000 - expected_tx_fee;
1147             }
1148             Balance[] peer2_balances = state.peer2.chain_monitor.get_claimable_balances(state.peer2.chan_manager.list_channels());
1149             assert peer2_balances.length == 1;
1150             for (Balance bal : peer2_balances) {
1151                 assert bal instanceof Balance.ClaimableOnChannelClose;
1152                 assert ((Balance.ClaimableOnChannelClose) bal).amount_satoshis == 10000 + 1;
1153             }
1154         }
1155
1156         if (!nice_close) {
1157             BitcoinNetworkParams bitcoinj_net = BitcoinNetworkParams.of(BitcoinNetwork.MAINNET);
1158             Transaction tx = new Transaction(bitcoinj_net, state.peer1.broadcast_set.getFirst());
1159             Block b = new Block(bitcoinj_net, 2, state.best_blockhash, Sha256Hash.ZERO_HASH, 42, 0, 0,
1160                     Arrays.asList(new Transaction[]{tx}));
1161             TwoTuple_ThirtyTwoBytesCVec_C2Tuple_u32TxOutZZZ[] watch_outputs = state.peer2.connect_block(b, 10, 1);
1162             if (watch_outputs != null) { // We only process watch_outputs manually when we use a manually-build Watch impl
1163                 assert watch_outputs.length == 1;
1164                 assert Arrays.equals(watch_outputs[0].get_a(), tx.getTxId().getReversedBytes());
1165                 assert watch_outputs[0].get_b().length == 2;
1166                 assert watch_outputs[0].get_b()[0].get_a() == 0;
1167                 assert watch_outputs[0].get_b()[1].get_a() == 1;
1168             }
1169
1170             for (int i = 11; i < 21; i++) {
1171                 b = new Block(bitcoinj_net, 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, new ArrayList<>());
1172                 state.peer2.connect_block(b, i, 0);
1173             }
1174
1175             Event[] broadcastable_event = state.peer2.get_monitor_events(1);
1176             for (ChannelMonitor mon : state.peer2.monitors.values()) {
1177                 // This used to be buggy and double-free, so go ahead and fetch them!
1178                 byte[][] txn = mon.get_latest_holder_commitment_txn(state.peer2.logger);
1179             }
1180             assert broadcastable_event.length == 1;
1181             assert broadcastable_event[0] instanceof Event.SpendableOutputs;
1182             if (state.peer2.explicit_keys_manager != null) {
1183                 TxOut[] additional_outputs = new TxOut[]{new TxOut(420, new byte[]{0x42})};
1184                 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());
1185                 assert tx_res instanceof Result_TransactionNoneZ.Result_TransactionNoneZ_OK;
1186                 Transaction built_tx = new Transaction(bitcoinj_net, ((Result_TransactionNoneZ.Result_TransactionNoneZ_OK) tx_res).res);
1187                 assert built_tx.getOutputs().size() == 2;
1188                 assert Arrays.equals(built_tx.getOutput(1).getScriptBytes(), new byte[]{0x00});
1189                 assert Arrays.equals(built_tx.getOutput(0).getScriptBytes(), new byte[]{0x42});
1190                 assert built_tx.getOutput(0).getValue().value == 420;
1191             }
1192
1193             while (state.peer1.peer_manager.get_peer_node_ids().length != 0 || state.peer2.peer_manager.get_peer_node_ids().length != 0) {
1194                 // LDK disconnects peers before sending an error message, so wait for disconnection.
1195                 Thread.sleep(10);
1196             }
1197
1198             connect_peers(state.peer1, state.peer2);
1199         }
1200
1201         // Test exchanging a custom message (note that ChannelManagerConstructor) always loads an IgnorimgMessageHandler
1202         // so we cannot exchange custom messages with it
1203         if (!use_chan_manager_constructor) {
1204             byte[] custom_message_bytes = new byte[]{0x42, 0x44, 0x43, 0x00};
1205             synchronized(state.peer1.custom_messages_to_send) {
1206                 state.peer1.custom_messages_to_send.add(custom_message_bytes);
1207             }
1208             state.peer1.peer_manager.process_events();
1209             synchronized (state.peer2.received_custom_messages) {
1210                 while (true) {
1211                     if (state.peer2.received_custom_messages.isEmpty()) {
1212                         state.peer2.received_custom_messages.wait();
1213                         continue;
1214                     }
1215                     assert state.peer2.received_custom_messages.size() == 1;
1216                     assert Arrays.equals(state.peer2.received_custom_messages.get(0), custom_message_bytes);
1217                     break;
1218                 }
1219             }
1220         }
1221
1222         if (use_nio_peer_handler) {
1223             state.peer1.peer_manager.disconnect_by_node_id(state.peer2.chan_manager.get_our_node_id());
1224             while (state.peer1.peer_manager.get_peer_node_ids().length != 0) Thread.yield();
1225             while (state.peer2.peer_manager.get_peer_node_ids().length != 0) Thread.yield();
1226             state.peer1.nio_peer_handler.interrupt();
1227             state.peer2.nio_peer_handler.interrupt();
1228         }
1229
1230         state.peer1.get_monitor_events(0);
1231         state.peer2.get_monitor_events(0);
1232
1233         if (use_chan_manager_constructor) {
1234             assert state.peer1.network_graph_persists == 0;
1235             assert state.peer2.network_graph_persists == 0;
1236             state.peer1.constructor.interrupt();
1237             state.peer2.constructor.interrupt();
1238             if (!use_ignore_handler) {
1239                 assert state.peer1.network_graph_persists >= 1;
1240                 assert state.peer2.network_graph_persists >= 1;
1241             } else {
1242                 assert state.peer1.network_graph_persists == 0;
1243                 assert state.peer2.network_graph_persists == 0;
1244             }
1245         }
1246
1247         t.interrupt();
1248
1249         if (state.peer1.net_graph != null)
1250             state.peer1.net_graph.write();
1251
1252         // Construct the only Option_Enum::Variant(OpaqueStruct) we have in the codebase as this used to cause double-frees:
1253         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};
1254         Result_ChannelUpdateDecodeErrorZ upd_msg = ChannelUpdate.read(serd);
1255         assert upd_msg instanceof Result_ChannelUpdateDecodeErrorZ.Result_ChannelUpdateDecodeErrorZ_OK;
1256         assert ((Result_ChannelUpdateDecodeErrorZ.Result_ChannelUpdateDecodeErrorZ_OK) upd_msg).res.get_contents().get_htlc_maximum_msat() == 0xdeadbeef42424242L;
1257         Option_NetworkUpdateZ upd = Option_NetworkUpdateZ.some(NetworkUpdate.channel_update_message(((Result_ChannelUpdateDecodeErrorZ.Result_ChannelUpdateDecodeErrorZ_OK) upd_msg).res));
1258
1259         if (use_chan_manager_constructor) {
1260             // Lock the scorer twice back-to-back to check that the try-with-resources AutoCloseable on the scorer works.
1261             try (ChannelManagerConstructor.ScorerWrapper score = state.peer1.constructor.get_locked_scorer()) {
1262                 score.prob_scorer.debug_log_liquidity_stats();
1263             }
1264         }
1265     }
1266
1267     java.util.LinkedList<WeakReference<Object>> must_free_objs = new java.util.LinkedList();
1268     int gc_count = 0;
1269     int gc_exp_count = 0;
1270     class GcCheck {
1271         GcCheck() { gc_exp_count += 1; }
1272         @Override
1273         protected void finalize() throws Throwable {
1274             gc_count += 1;
1275             super.finalize();
1276         }
1277     }
1278 }
1279 public class HumanObjectPeerTest {
1280     static HumanObjectPeerTestInstance do_test_run(boolean nice_close, boolean use_km_wrapper, boolean use_full_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 {
1281         HumanObjectPeerTestInstance instance = new HumanObjectPeerTestInstance(nice_close, use_km_wrapper, use_full_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);
1282         HumanObjectPeerTestInstance.TestState state = instance.do_test_message_handler();
1283         instance.do_test_message_handler_b(state);
1284         return instance;
1285     }
1286     static void do_test(boolean nice_close, boolean use_km_wrapper, boolean use_full_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 {
1287         HumanObjectPeerTestInstance instance = do_test_run(nice_close, use_km_wrapper, use_full_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);
1288         while (instance.gc_count != instance.gc_exp_count) {
1289             System.gc();
1290             System.runFinalization();
1291         }
1292         for (WeakReference<Object> o : instance.must_free_objs)
1293             assert o.get() == null;
1294     }
1295     public static final int TEST_ITERATIONS = (1 << 10);
1296     public static void do_test_message_handler(IntConsumer statusFunction) throws Exception {
1297         Thread gc_thread = new Thread(() -> {
1298             while (true) {
1299                 System.gc();
1300                 System.runFinalization();
1301                 try { Thread.sleep(0, 1); } catch (InterruptedException e) { break; }
1302             }
1303         }, "Test GC Thread");
1304         gc_thread.start();
1305         for (int i = 0; i < TEST_ITERATIONS; i++) {
1306             boolean nice_close =                   (i & (1 << 0)) != 0;
1307             boolean use_km_wrapper =               (i & (1 << 1)) != 0;
1308             boolean use_full_km_wrapper =          (i & (1 << 2)) != 0;
1309             boolean use_manual_watch =             (i & (1 << 3)) != 0;
1310             boolean reload_peers =                 (i & (1 << 4)) != 0;
1311             boolean break_cross_refs =             (i & (1 << 5)) != 0;
1312             boolean use_ignoring_routing_handler = (i & (1 << 6)) != 0;
1313             boolean use_chan_manager_constructor = (i & (1 << 7)) != 0;
1314             boolean use_invoice_payer =            (i & (1 << 8)) != 0;
1315             boolean nio_peer_handler =             (i & (1 << 9)) != 0;
1316             if (break_cross_refs && !reload_peers) {
1317                 // There are no cross refs to break without reloading peers.
1318                 continue;
1319             }
1320             if (use_chan_manager_constructor && (use_manual_watch || !nio_peer_handler)) {
1321                 // ChannelManagerConstructor requires a ChainMonitor as the Watch and creates a NioPeerHandler for us.
1322                 continue;
1323             }
1324             if (!use_chan_manager_constructor && (use_ignoring_routing_handler)) {
1325                 // We rely on the ChannelManagerConstructor to convert null into an IgnoringMessageHandler, so don't
1326                 // try to run with an IgnoringMessageHandler unless we're also using a ChannelManagerConstructor.
1327                 continue;
1328             }
1329             if (use_chan_manager_constructor && use_ignoring_routing_handler && use_invoice_payer) {
1330                 // As documented on ChannelManagerConstructor, if we provide a `null` NetworkGraph (because we want to
1331                 // use an IgnoringMessageHandler), no InvoicePayer will be constructed for us, thus we cannot use an
1332                 // InvoicePayer to send payments in this case.
1333                 continue;
1334             }
1335             if (use_chan_manager_constructor && use_km_wrapper) {
1336                 // ChannelManagerConstructor requires a full KeysManager, so using wrapped keys interfaces doesn't make
1337                 // any sense.
1338                 continue;
1339             }
1340             if (use_full_km_wrapper && !use_km_wrapper) {
1341                 // Gotta use some KM wrapper if we're gonna use a full one.
1342                 continue;
1343             }
1344             statusFunction.accept(i);
1345             do_test(nice_close, use_km_wrapper, use_full_km_wrapper, use_manual_watch, reload_peers, break_cross_refs, nio_peer_handler, use_ignoring_routing_handler, use_chan_manager_constructor, use_invoice_payer);
1346         }
1347         gc_thread.interrupt();
1348         gc_thread.join();
1349     }
1350     @Test
1351     public void test_message_handler() throws Exception {
1352         do_test_message_handler(i -> System.err.println("Running test with flags " + i));
1353     }
1354
1355     // This is used in the test jar to test the built jar is runnable
1356     public static void main(String[] args) {
1357         try {
1358             do_test_message_handler(i -> System.err.println("Running test with flags " + i));
1359         } catch (Exception e) {
1360             System.err.println("Caught exception:");
1361             System.err.println(e);
1362             System.exit(1);
1363         }
1364     }
1365 }