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

   1 package org.ldk;
   2
   3 import org.bitcoinj.core.*;
   4 import org.bitcoinj.script.Script;
   5 import org.junit.jupiter.api.Test;
   6 import org.ldk.batteries.ChannelManagerConstructor;
   7 import org.ldk.batteries.NioPeerHandler;
   8 import org.ldk.enums.Currency;
   9 import org.ldk.enums.Network;
  10 import org.ldk.structs.*;
  11 import org.ldk.util.TwoTuple;
  12
  13 import java.io.IOException;
  14 import java.lang.ref.WeakReference;
  15 import java.net.InetSocketAddress;
  16 import java.util.*;
  17
  18 class HumanObjectPeerTestInstance {
  19     private final boolean nice_close;
  20     private final boolean use_km_wrapper;
  21     private final boolean use_manual_watch;
  22     private final boolean reload_peers;
  23     private final boolean break_cross_peer_refs;
  24     private final boolean use_nio_peer_handler;
  25     private final boolean use_filter;
  26     private final boolean use_chan_manager_constructor;
  27
  28     HumanObjectPeerTestInstance(boolean nice_close, boolean use_km_wrapper, boolean use_manual_watch, boolean reload_peers, boolean break_cross_peer_refs, boolean use_nio_peer_handler, boolean use_filter, boolean use_chan_manager_constructor) {
  29         this.nice_close = nice_close;
  30         this.use_km_wrapper = use_km_wrapper;
  31         this.use_manual_watch = use_manual_watch;
  32         this.reload_peers = reload_peers;
  33         this.break_cross_peer_refs = break_cross_peer_refs;
  34         this.use_nio_peer_handler = use_nio_peer_handler;
  35         this.use_filter = use_filter;
  36         this.use_chan_manager_constructor = use_chan_manager_constructor;
  37     }
  38
  39     class Peer {
  40         KeysInterface manual_keysif(KeysInterface underlying_if) {
  41             return KeysInterface.new_impl(new KeysInterface.KeysInterfaceInterface() {
  42                 @Override public byte[] get_node_secret() { return underlying_if.get_node_secret(); }
  43                 @Override public byte[] get_destination_script() { return underlying_if.get_destination_script(); }
  44                 @Override public byte[] get_shutdown_pubkey() { return underlying_if.get_shutdown_pubkey(); }
  45
  46                 @Override
  47                 public Sign get_channel_signer(boolean inbound, long channel_value_satoshis) {
  48                     Sign underlying_ck = underlying_if.get_channel_signer(inbound, channel_value_satoshis);
  49                     BaseSign underlying_base = underlying_ck.get_base_sign();
  50                     BaseSign.BaseSignInterface bsi = new BaseSign.BaseSignInterface() {
  51                         @Override
  52                         public byte[] get_per_commitment_point(long idx) {
  53                             return underlying_base.get_per_commitment_point(idx);
  54                         }
  55
  56                         @Override
  57                         public byte[] release_commitment_secret(long idx) {
  58                             return underlying_base.release_commitment_secret(idx);
  59                         }
  60
  61                         @Override
  62                         public byte[] channel_keys_id() {
  63                             return new byte[32];
  64                         }
  65
  66                         @Override
  67                         public Result_C2Tuple_SignatureCVec_SignatureZZNoneZ sign_counterparty_commitment(CommitmentTransaction commitment_tx) {
  68                             return underlying_base.sign_counterparty_commitment(commitment_tx);
  69                         }
  70
  71                         @Override
  72                         public Result_C2Tuple_SignatureCVec_SignatureZZNoneZ sign_holder_commitment_and_htlcs(HolderCommitmentTransaction holder_commitment_tx) {
  73                             return underlying_base.sign_holder_commitment_and_htlcs(holder_commitment_tx);
  74                         }
  75
  76                         @Override
  77                         public Result_SignatureNoneZ sign_justice_revoked_output(byte[] justice_tx, long input, long amount, byte[] per_commitment_key) {
  78                             return underlying_base.sign_justice_revoked_output(justice_tx, input, amount, per_commitment_key);
  79                         }
  80
  81                         @Override
  82                         public Result_SignatureNoneZ sign_justice_revoked_htlc(byte[] justice_tx, long input, long amount, byte[] per_commitment_key, HTLCOutputInCommitment htlc) {
  83                             return underlying_base.sign_justice_revoked_htlc(justice_tx, input, amount, per_commitment_key, htlc);
  84                         }
  85
  86                         @Override
  87                         public Result_SignatureNoneZ sign_counterparty_htlc_transaction(byte[] htlc_tx, long input, long amount, byte[] per_commitment_point, HTLCOutputInCommitment htlc) {
  88                             return underlying_base.sign_counterparty_htlc_transaction(htlc_tx, input, amount, per_commitment_point, htlc);
  89                         }
  90
  91                         @Override
  92                         public Result_SignatureNoneZ sign_closing_transaction(byte[] closing_tx) {
  93                             return underlying_base.sign_closing_transaction(closing_tx);
  94                         }
  95
  96                         @Override
  97                         public Result_SignatureNoneZ sign_channel_announcement(UnsignedChannelAnnouncement msg) {
  98                             return underlying_base.sign_channel_announcement(msg);
  99                         }
 100
 101                         @Override
 102                         public void ready_channel(ChannelTransactionParameters params) {
 103                             underlying_base.ready_channel(params);
 104                         }
 105                     };
 106                     Sign.SignInterface si = new Sign.SignInterface() {
 107                         @Override
 108                         public byte[] write() {
 109                             return underlying_ck.write();
 110                         }
 111                     };
 112                     Sign resp = Sign.new_impl(si, bsi, underlying_base.get_pubkeys());
 113                     must_free_objs.add(new WeakReference<>(si));
 114                     must_free_objs.add(new WeakReference<>(bsi));
 115                     must_free_objs.add(new WeakReference<>(resp));
 116                     must_free_objs.add(new WeakReference<>(underlying_base));
 117                     must_free_objs.add(new WeakReference<>(underlying_ck));
 118                     return resp;
 119                 }
 120
 121                 @Override
 122                 public byte[] get_secure_random_bytes() {
 123                     return underlying_if.get_secure_random_bytes();
 124                 }
 125
 126                 @Override
 127                 public Result_SignDecodeErrorZ read_chan_signer(byte[] reader) {
 128                     return underlying_if.read_chan_signer(reader);
 129                 }
 130
 131                 @Override
 132                 public Result_RecoverableSignatureNoneZ sign_invoice(byte[] invoice_preimage) {
 133                     return underlying_if.sign_invoice(invoice_preimage);
 134                 }
 135             });
 136         }
 137
 138         Watch get_manual_watch() {
 139             Watch.WatchInterface watch_impl = new Watch.WatchInterface() {
 140                 public Result_NoneChannelMonitorUpdateErrZ watch_channel(OutPoint funding_txo, ChannelMonitor monitor) {
 141                     synchronized (monitors) {
 142                         assert monitors.put(Arrays.toString(funding_txo.get_txid()), monitor) == null;
 143                     }
 144                     return Result_NoneChannelMonitorUpdateErrZ.ok();
 145                 }
 146
 147                 public Result_NoneChannelMonitorUpdateErrZ update_channel(OutPoint funding_txo, ChannelMonitorUpdate update) {
 148                     synchronized (monitors) {
 149                         String txid = Arrays.toString(funding_txo.get_txid());
 150                         assert monitors.containsKey(txid);
 151                         Result_NoneMonitorUpdateErrorZ update_res = monitors.get(txid).update_monitor(update, tx_broadcaster, fee_estimator, logger);
 152                         assert update_res instanceof Result_NoneMonitorUpdateErrorZ.Result_NoneMonitorUpdateErrorZ_OK;
 153                     }
 154                     return Result_NoneChannelMonitorUpdateErrZ.ok();
 155                 }
 156
 157                 @Override
 158                 public MonitorEvent[] release_pending_monitor_events() {
 159                     synchronized (monitors) {
 160                         assert monitors.size() <= 1;
 161                         for (ChannelMonitor mon : monitors.values()) {
 162                             return mon.get_and_clear_pending_monitor_events();
 163                         }
 164                     }
 165                     return new MonitorEvent[0];
 166                 }
 167             };
 168             Watch watch = Watch.new_impl(watch_impl);
 169             must_free_objs.add(new WeakReference<>(watch_impl));
 170             must_free_objs.add(new WeakReference<>(watch));
 171             return watch;
 172         }
 173
 174         NioPeerHandler nio_peer_handler;
 175         short nio_port;
 176         final byte seed;
 177         final Logger logger;
 178         final FeeEstimator fee_estimator;
 179         final BroadcasterInterface tx_broadcaster;
 180         final KeysManager explicit_keys_manager;
 181         final KeysInterface keys_interface;
 182         final ChainMonitor chain_monitor;
 183         final NetGraphMsgHandler router;
 184         final Watch chain_watch;
 185         final HashSet<String> filter_additions;
 186         final Filter filter;
 187         ChannelManager chan_manager;
 188         PeerManager peer_manager;
 189         final HashMap<String, ChannelMonitor> monitors; // Wow I forgot just how terrible Java is - we can't put a byte array here.
 190         byte[] node_id;
 191         final LinkedList<byte[]> broadcast_set = new LinkedList<>();
 192         final LinkedList<Event> pending_manager_events = new LinkedList<>();
 193         ChannelManagerConstructor constructor = null;
 194         GcCheck obj = new GcCheck();
 195
 196         private TwoTuple<OutPoint, byte[]> test_mon_roundtrip(ChannelMonitor mon) {
 197             // Because get_funding_txo() returns an OutPoint in a tuple that is a reference to an OutPoint inside the
 198             // ChannelMonitor, its a good test to ensure that the OutPoint isn't freed (or is cloned) before the
 199             // ChannelMonitor is. This used to be broken.
 200             Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ roundtrip_monitor = UtilMethods.BlockHashChannelMonitorZ_read(mon.write(), keys_interface);
 201             assert roundtrip_monitor instanceof Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ.Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_OK;
 202             TwoTuple<OutPoint, byte[]> funding_txo = ((Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ.Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_OK) roundtrip_monitor).res.b.get_funding_txo();
 203             System.gc(); System.runFinalization(); // Give the GC a chance to run.
 204             return funding_txo;
 205         }
 206
 207         private Peer(Object _dummy, byte seed) {
 208             logger = Logger.new_impl((String arg) -> System.out.println(seed + ": " + arg));
 209             fee_estimator = FeeEstimator.new_impl((confirmation_target -> 253));
 210             tx_broadcaster = BroadcasterInterface.new_impl(tx -> {
 211                 synchronized (broadcast_set) {
 212                     broadcast_set.add(tx);
 213                     broadcast_set.notifyAll();
 214                 }
 215             });
 216             monitors = new HashMap<>();
 217             this.seed = seed;
 218             Persist persister = Persist.new_impl(new Persist.PersistInterface() {
 219                 @Override
 220                 public Result_NoneChannelMonitorUpdateErrZ persist_new_channel(OutPoint id, ChannelMonitor data) {
 221                     synchronized (monitors) {
 222                         String key = Arrays.toString(id.to_channel_id());
 223                         assert monitors.put(key, data) == null;
 224                         TwoTuple<OutPoint, byte[]> res = test_mon_roundtrip(data);
 225                         assert Arrays.equals(res.a.get_txid(), id.get_txid());
 226                         assert res.a.get_index() == id.get_index();
 227                     }
 228                     return Result_NoneChannelMonitorUpdateErrZ.ok();
 229                 }
 230
 231                 @Override
 232                 public Result_NoneChannelMonitorUpdateErrZ update_persisted_channel(OutPoint id, ChannelMonitorUpdate update, ChannelMonitor data) {
 233                     synchronized (monitors) {
 234                         String key = Arrays.toString(id.to_channel_id());
 235                         assert monitors.put(key, data) != null;
 236                         TwoTuple<OutPoint, byte[]> res = test_mon_roundtrip(data);
 237                         assert Arrays.equals(res.a.get_txid(), id.get_txid());
 238                         assert res.a.get_index() == id.get_index();
 239                     }
 240                     return Result_NoneChannelMonitorUpdateErrZ.ok();
 241                 }
 242             });
 243
 244             filter_additions = new HashSet<>();
 245             if (use_filter) {
 246                 this.filter = Filter.new_impl(new Filter.FilterInterface() {
 247                     @Override public void register_tx(byte[] txid, byte[] script_pubkey) {
 248                         filter_additions.add(Arrays.toString(txid));
 249                     }
 250                     @Override public Option_C2Tuple_usizeTransactionZZ register_output(WatchedOutput output) {
 251                         filter_additions.add(Arrays.toString(output.get_outpoint().get_txid()) + ":" + output.get_outpoint().get_index());
 252                         return Option_C2Tuple_usizeTransactionZZ.none();
 253                     }
 254                 });
 255             } else {
 256                 this.filter = null;
 257             }
 258
 259             if (use_manual_watch) {
 260                 chain_watch = get_manual_watch();
 261                 chain_monitor = null;
 262             } else {
 263                 chain_monitor = ChainMonitor.of(filter, tx_broadcaster, logger, fee_estimator, persister);
 264                 chain_watch = chain_monitor.as_Watch();
 265             }
 266
 267             byte[] key_seed = new byte[32];
 268             for (byte i = 0; i < 32; i++) {
 269                 key_seed[i] = (byte) (i ^ seed);
 270             }
 271             KeysManager keys = KeysManager.of(key_seed, System.currentTimeMillis() / 1000, (int) (System.currentTimeMillis() * 1000));
 272             if (use_km_wrapper) {
 273                 this.keys_interface = manual_keysif(keys.as_KeysInterface());
 274                 this.explicit_keys_manager = null;
 275             } else {
 276                 this.keys_interface = keys.as_KeysInterface();
 277                 this.explicit_keys_manager = keys;
 278             }
 279             this.router = NetGraphMsgHandler.of(new byte[32], null, logger);
 280         }
 281         private void bind_nio() {
 282             if (!use_nio_peer_handler) return;
 283             if (use_chan_manager_constructor) {
 284                 this.nio_peer_handler = this.constructor.nio_peer_handler;
 285             } else {
 286                 try { this.nio_peer_handler = new NioPeerHandler(peer_manager); } catch (IOException e) { assert false; }
 287             }
 288             for (short i = 10_000; true; i++) {
 289                 try {
 290                     nio_peer_handler.bind_listener(new InetSocketAddress("127.0.0.1", i));
 291                     nio_port = i;
 292                     break;
 293                 } catch (IOException e) { assert i < 10_500; }
 294             }
 295         }
 296         Peer(byte seed) {
 297             this(null, seed);
 298             if (use_chan_manager_constructor) {
 299                 this.constructor = new ChannelManagerConstructor(Network.LDKNetwork_Bitcoin, UserConfig.with_default(), new byte[32], 0,
 300                         this.keys_interface, this.fee_estimator, this.chain_monitor, this.router, this.tx_broadcaster, this.logger);
 301                 constructor.chain_sync_completed(new ChannelManagerConstructor.ChannelManagerPersister() {
 302                     @Override public void handle_event(Event event) {
 303                         synchronized (pending_manager_events) {
 304                             pending_manager_events.add(event);
 305                             pending_manager_events.notifyAll();
 306                         }
 307                     }
 308                     @Override public void persist_manager(byte[] channel_manager_bytes) { assert channel_manager_bytes.length > 1; }
 309                 });
 310                 this.chan_manager = constructor.channel_manager;
 311                 this.peer_manager = constructor.peer_manager;
 312                 must_free_objs.add(new WeakReference<>(this.chan_manager));
 313             } else {
 314                 ChainParameters params = ChainParameters.of(Network.LDKNetwork_Bitcoin, BestBlock.of(new byte[32], 0));
 315                 this.chan_manager = ChannelManager.of(this.fee_estimator, chain_watch, tx_broadcaster, logger, this.keys_interface, UserConfig.with_default(), params);
 316                 byte[] random_data = keys_interface.get_secure_random_bytes();
 317                 this.peer_manager = PeerManager.of(chan_manager.as_ChannelMessageHandler(), router.as_RoutingMessageHandler(), keys_interface.get_node_secret(), random_data, logger);
 318             }
 319
 320             this.node_id = chan_manager.get_our_node_id();
 321             bind_nio();
 322             System.gc();
 323         }
 324
 325         Object ptr_to;
 326         Peer(Peer orig) {
 327             this(null, orig.seed);
 328             if (use_chan_manager_constructor) {
 329                 byte[][] monitors = {orig.monitors.values().stream().iterator().next().write()};
 330                 byte[] serialized = orig.chan_manager.write();
 331                 try {
 332                     this.constructor = new ChannelManagerConstructor(serialized, monitors, this.keys_interface,
 333                             this.fee_estimator, this.chain_monitor, this.filter, this.router, this.tx_broadcaster, this.logger);
 334                     constructor.chain_sync_completed(new ChannelManagerConstructor.ChannelManagerPersister() {
 335                         @Override public void handle_event(Event event) {
 336                             synchronized (pending_manager_events) {
 337                                 pending_manager_events.add(event);
 338                                 pending_manager_events.notifyAll();
 339                             }
 340                         }
 341                         @Override public void persist_manager(byte[] channel_manager_bytes) { assert channel_manager_bytes.length > 1; }
 342                     });
 343                     this.chan_manager = constructor.channel_manager;
 344                     this.peer_manager = constructor.peer_manager;
 345                     must_free_objs.add(new WeakReference<>(this.chan_manager));
 346                     // If we are using a ChannelManagerConstructor, we may have pending events waiting on the old peer
 347                     // which have been removed from the ChannelManager but which we still need to handle.
 348                     this.pending_manager_events.addAll(orig.pending_manager_events);
 349                     if (!this.pending_manager_events.isEmpty()) {
 350                         // However, this implies cross_reload_ref_pollution
 351                         cross_reload_ref_pollution = true;
 352                     }
 353                 } catch (ChannelManagerConstructor.InvalidSerializedDataException e) {
 354                     assert false;
 355                 }
 356             } else {
 357                 ChannelMonitor[] monitors = new ChannelMonitor[1];
 358                 assert orig.monitors.size() == 1;
 359                 if (!break_cross_peer_refs) {
 360                     monitors[0] = orig.monitors.values().stream().iterator().next();
 361                 } else {
 362                     byte[] serialized = orig.monitors.values().stream().iterator().next().write();
 363                     Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ res =
 364                             UtilMethods.BlockHashChannelMonitorZ_read(serialized, this.keys_interface);
 365                     assert res instanceof Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ.Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_OK;
 366                     monitors[0] = ((Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ.Result_C2Tuple_BlockHashChannelMonitorZDecodeErrorZ_OK) res).res.b;
 367                 }
 368                 byte[] serialized = orig.chan_manager.write();
 369                 Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ read_res =
 370                         UtilMethods.BlockHashChannelManagerZ_read(serialized, this.keys_interface, this.fee_estimator, this.chain_watch, this.tx_broadcaster, this.logger, UserConfig.with_default(), monitors);
 371                 assert read_res instanceof Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ.Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_OK;
 372                 this.chan_manager = ((Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ.Result_C2Tuple_BlockHashChannelManagerZDecodeErrorZ_OK) read_res).res.b;
 373                 this.chain_watch.watch_channel(monitors[0].get_funding_txo().a, monitors[0]);
 374                 byte[] random_data = keys_interface.get_secure_random_bytes();
 375                 this.peer_manager = PeerManager.of(chan_manager.as_ChannelMessageHandler(), router.as_RoutingMessageHandler(), keys_interface.get_node_secret(), random_data, logger);
 376                 if (!break_cross_peer_refs && (use_manual_watch || use_km_wrapper)) {
 377                     // When we pass monitors[0] into chain_watch.watch_channel we create a reference from the new Peer to a
 378                     // field in the old peer, preventing freeing of the original Peer until the new Peer is freed. Thus, we
 379                     // shouldn't bother waiting for the original to be freed later on.
 380                     cross_reload_ref_pollution = true;
 381                 }
 382             }
 383             this.node_id = chan_manager.get_our_node_id();
 384             bind_nio();
 385
 386             if (cross_reload_ref_pollution) {
 387                 // This really, really needs to be handled at the bindings layer, but its rather complicated -
 388                 // ChannelSigners can be cloned and passed around without java being involved, resulting in them being
 389                 // owned by both one or more ChannelMonitors and a ChannelManager, with only one having proper pointers
 390                 // to the ChannelSigner. Ideally, the ChannelSigner would have a global reference to the Java
 391                 // implementation class, but that results in circular references. Instead, we need some ability to,
 392                 // while cloning ChannelSigners, add new references in the calling Java struct (ie ChannelMonitor) to
 393                 // the ChannelSigner.
 394                 this.ptr_to = orig.chan_manager;
 395             }
 396         }
 397
 398         TwoTuple<byte[], TwoTuple<Integer, TxOut>[]>[] connect_block(Block b, int height, long expected_monitor_update_len) {
 399             byte[] header = Arrays.copyOfRange(b.bitcoinSerialize(), 0, 80);
 400             TwoTuple<Long, byte[]>[] txn;
 401             if (b.hasTransactions()) {
 402                 assert b.getTransactions().size() == 1;
 403                 TwoTuple<Long, byte[]> txp = new TwoTuple<>((long) 0, b.getTransactions().get(0).bitcoinSerialize());
 404                 txn = new TwoTuple[]{txp};
 405             } else
 406                 txn = new TwoTuple[0];
 407             if (chain_monitor != null) {
 408                 chan_manager.as_Listen().block_connected(b.bitcoinSerialize(), height);
 409                 chain_monitor.as_Listen().block_connected(b.bitcoinSerialize(), height);
 410             } else {
 411                 chan_manager.as_Confirm().transactions_confirmed(header, txn, height);
 412                 chan_manager.as_Confirm().best_block_updated(header, height);
 413                 // Connect manually if we aren't using a ChainMonitor and are implementing Watch ourselves
 414                 synchronized (monitors) {
 415                     assert monitors.size() == 1;
 416                     for (ChannelMonitor mon : monitors.values()) {
 417                         TwoTuple<byte[], TwoTuple<Integer, TxOut>[]>[] ret = mon.block_connected(header, txn, height, tx_broadcaster, fee_estimator, logger);
 418                         assert ret.length == expected_monitor_update_len;
 419                         return ret;
 420                     }
 421                 }
 422             }
 423             return null;
 424         }
 425
 426         Event[] get_monitor_events(int expected_len) {
 427             if (use_chan_manager_constructor) {
 428                 while (true) {
 429                     synchronized (this.pending_manager_events) {
 430                         if (expected_len != 0 && this.pending_manager_events.size() == expected_len) {
 431                             break;
 432                         }
 433                     }
 434                     if (expected_len == 0) {
 435                         try { Thread.sleep(500); } catch (InterruptedException e) { assert false; }
 436                         break;
 437                     } else {
 438                         Thread.yield();
 439                     }
 440                 }
 441                 synchronized (this.pending_manager_events) {
 442                     Event[] res = this.pending_manager_events.toArray(new Event[0]);
 443                     this.pending_manager_events.clear();
 444                     assert res.length == expected_len;
 445                     return res;
 446                 }
 447             } else if (chain_monitor != null) {
 448                 ArrayList<Event> l = new ArrayList<Event>();
 449                 chain_monitor.as_EventsProvider().process_pending_events(EventHandler.new_impl(l::add));
 450                 assert l.size() == expected_len;
 451                 return l.toArray(new Event[0]);
 452             } else {
 453                 synchronized (monitors) {
 454                     assert monitors.size() == 1;
 455                     for (ChannelMonitor mon : monitors.values()) {
 456                         Event[] res = mon.get_and_clear_pending_events();
 457                         assert res.length == expected_len;
 458                         return res;
 459                     }
 460                     return null;
 461                 }
 462             }
 463         }
 464
 465         Event[] get_manager_events(int expected_len, Peer peer1, Peer peer2) {
 466             assert expected_len != 0;
 467             if (!use_nio_peer_handler) {
 468                 maybe_exchange_peer_messages(peer1, peer2);
 469             }
 470             Event[] res = new Event[0];
 471             if (use_chan_manager_constructor) {
 472                 while (res.length < expected_len) {
 473                     synchronized (this.pending_manager_events) {
 474                         res = this.pending_manager_events.toArray(res);
 475                         assert res.length == expected_len || res.length == 0; // We don't handle partial results
 476                         this.pending_manager_events.clear();
 477                         if (res.length < expected_len) {
 478                             try { this.pending_manager_events.wait(); } catch (InterruptedException e) { assert false; }
 479                         }
 480                     }
 481                 }
 482             } else {
 483                 ArrayList<Event> l = new ArrayList<Event>();
 484                 while (l.size() < expected_len) {
 485                     Thread.yield();
 486                     if (use_nio_peer_handler) {
 487                         peer1.nio_peer_handler.check_events();
 488                         peer2.nio_peer_handler.check_events();
 489                     }
 490                     chan_manager.as_EventsProvider().process_pending_events(EventHandler.new_impl(l::add));
 491                     assert l.size() == expected_len || l.size() == 0; // We don't handle partial results
 492                 }
 493                 return l.toArray(new Event[0]);
 494             }
 495             assert res.length == expected_len;
 496             return res;
 497         }
 498     }
 499
 500     static class DescriptorHolder { SocketDescriptor val; }
 501
 502     boolean running = false;
 503     final LinkedList<Runnable> runqueue = new LinkedList();
 504     boolean ran = false;
 505     Thread t = new Thread(() -> {
 506             while (true) {
 507                 try {
 508                     Runnable r;
 509                     synchronized (runqueue) {
 510                         while (runqueue.isEmpty()) {
 511                             runqueue.wait();
 512                         }
 513                         running = true;
 514                         r = runqueue.pollFirst();
 515                     }
 516                     r.run();
 517                     synchronized (runqueue) {
 518                         running = false;
 519                         runqueue.notifyAll();
 520                     }
 521                 } catch (InterruptedException e) {
 522                     return;
 523                 }
 524             }
 525     });
 526
 527     void maybe_exchange_peer_messages(Peer peer1, Peer peer2) {
 528         if (!use_nio_peer_handler) {
 529             synchronized (runqueue) {
 530                 ran = false;
 531             }
 532             while (true) {
 533                 peer1.peer_manager.process_events();
 534                 peer2.peer_manager.process_events();
 535                 synchronized (runqueue) {
 536                     if (runqueue.isEmpty() && !running) {
 537                         if (ran) {
 538                             ran = false;
 539                             continue;
 540                         } else { break; }
 541                     }
 542                     try { runqueue.wait(); } catch (InterruptedException e) { assert false; }
 543                 }
 544             }
 545         } else if (!use_chan_manager_constructor) {
 546             peer1.nio_peer_handler.check_events();
 547             peer2.nio_peer_handler.check_events();
 548         }
 549     }
 550     void do_read_event(PeerManager pm, SocketDescriptor descriptor, byte[] data) {
 551         if (!t.isAlive()) t.start();
 552         synchronized (runqueue) {
 553             ran = true;
 554             runqueue.add(() -> {
 555                 Result_boolPeerHandleErrorZ res = pm.read_event(descriptor, data);
 556                 assert res instanceof Result_boolPeerHandleErrorZ.Result_boolPeerHandleErrorZ_OK;
 557             });
 558             runqueue.notifyAll();
 559         }
 560         must_free_objs.add(new WeakReference<>(data));
 561     }
 562
 563     void connect_peers(final Peer peer1, final Peer peer2) {
 564         if (use_nio_peer_handler) {
 565             try {
 566                 peer1.nio_peer_handler.connect(peer2.chan_manager.get_our_node_id(), new InetSocketAddress("127.0.0.1", peer2.nio_port), 100);
 567             } catch (IOException e) { assert false; }
 568             while (peer1.peer_manager.get_peer_node_ids().length == 0 || peer2.peer_manager.get_peer_node_ids().length == 0) {
 569                 Thread.yield();
 570             }
 571         } else {
 572             DescriptorHolder descriptor1 = new DescriptorHolder();
 573             DescriptorHolder descriptor1ref = descriptor1;
 574             SocketDescriptor descriptor2 = SocketDescriptor.new_impl(new SocketDescriptor.SocketDescriptorInterface() {
 575                 @Override
 576                 public long send_data(byte[] data, boolean resume_read) {
 577                     do_read_event(peer1.peer_manager, descriptor1ref.val, data);
 578                     return data.length;
 579                 }
 580
 581                 @Override public void disconnect_socket() { assert false; }
 582                 @Override public boolean eq(SocketDescriptor other_arg) { return other_arg.hash() == 2; }
 583                 @Override public long hash() { return 2; }
 584             });
 585
 586             descriptor1.val = SocketDescriptor.new_impl(new SocketDescriptor.SocketDescriptorInterface() {
 587                 @Override
 588                 public long send_data(byte[] data, boolean resume_read) {
 589                     do_read_event(peer2.peer_manager, descriptor2, data);
 590                     return data.length;
 591                 }
 592
 593                 @Override public void disconnect_socket() { assert false; }
 594                 @Override public boolean eq(SocketDescriptor other_arg) { return other_arg.hash() == 1; }
 595                 @Override public long hash() { return 1; }
 596             });
 597
 598             Result_CVec_u8ZPeerHandleErrorZ conn_res = peer1.peer_manager.new_outbound_connection(peer2.node_id, descriptor1.val);
 599             assert conn_res instanceof Result_CVec_u8ZPeerHandleErrorZ.Result_CVec_u8ZPeerHandleErrorZ_OK;
 600
 601             Result_NonePeerHandleErrorZ inbound_conn_res = peer2.peer_manager.new_inbound_connection(descriptor2);
 602             assert inbound_conn_res instanceof Result_NonePeerHandleErrorZ.Result_NonePeerHandleErrorZ_OK;
 603             do_read_event(peer2.peer_manager, descriptor2, ((Result_CVec_u8ZPeerHandleErrorZ.Result_CVec_u8ZPeerHandleErrorZ_OK) conn_res).res);
 604
 605             maybe_exchange_peer_messages(peer1, peer2);
 606         }
 607     }
 608
 609     TestState do_test_message_handler() throws InterruptedException {
 610         Peer peer1 = new Peer((byte) 1);
 611         Peer peer2 = new Peer((byte) 2);
 612
 613         connect_peers(peer1, peer2);
 614
 615         Result_NoneAPIErrorZ cc_res = peer1.chan_manager.create_channel(peer2.node_id, 10000, 1000, 42, null);
 616         assert cc_res instanceof Result_NoneAPIErrorZ.Result_NoneAPIErrorZ_OK;
 617
 618         Event[] events = peer1.get_manager_events(1, peer1, peer2);
 619         assert events[0] instanceof Event.FundingGenerationReady;
 620         assert ((Event.FundingGenerationReady) events[0]).channel_value_satoshis == 10000;
 621         assert ((Event.FundingGenerationReady) events[0]).user_channel_id == 42;
 622         byte[] funding_spk = ((Event.FundingGenerationReady) events[0]).output_script;
 623         assert funding_spk.length == 34 && funding_spk[0] == 0 && funding_spk[1] == 32; // P2WSH
 624         byte[] chan_id = ((Event.FundingGenerationReady) events[0]).temporary_channel_id;
 625
 626         NetworkParameters bitcoinj_net = NetworkParameters.fromID(NetworkParameters.ID_MAINNET);
 627
 628         Transaction funding = new Transaction(bitcoinj_net);
 629         funding.addInput(new TransactionInput(bitcoinj_net, funding, new byte[0]));
 630         funding.getInputs().get(0).setWitness(new TransactionWitness(2)); // Make sure we don't complain about lack of witness
 631         funding.getInput(0).getWitness().setPush(0, new byte[]{0x1});
 632         funding.addOutput(Coin.SATOSHI.multiply(10000), new Script(funding_spk));
 633         Result_NoneAPIErrorZ funding_res = peer1.chan_manager.funding_transaction_generated(chan_id, funding.bitcoinSerialize());
 634         assert funding_res instanceof Result_NoneAPIErrorZ.Result_NoneAPIErrorZ_OK;
 635
 636         maybe_exchange_peer_messages(peer1, peer2);
 637         synchronized (peer1.broadcast_set) {
 638             while (peer1.broadcast_set.size() != 1) {
 639                 peer1.broadcast_set.wait();
 640             }
 641         }
 642
 643         assert peer1.broadcast_set.size() == 1;
 644         assert Arrays.equals(peer1.broadcast_set.get(0), funding.bitcoinSerialize());
 645         peer1.broadcast_set.clear();
 646
 647         Block b = new Block(bitcoinj_net, 2, Sha256Hash.ZERO_HASH, Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[]{funding}));
 648         peer1.connect_block(b, 1, 0);
 649         peer2.connect_block(b, 1, 0);
 650
 651         for (int height = 2; height < 10; height++) {
 652             b = new Block(bitcoinj_net, 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, Arrays.asList(new Transaction[0]));
 653             peer1.connect_block(b, height, 0);
 654             peer2.connect_block(b, height, 0);
 655         }
 656
 657         maybe_exchange_peer_messages(peer1, peer2);
 658         while (peer1.chan_manager.list_usable_channels().length != 1 || peer2.chan_manager.list_usable_channels().length != 1)
 659
 660         peer1.chan_manager.list_channels();
 661         ChannelDetails[] peer1_chans = peer1.chan_manager.list_usable_channels();
 662         ChannelDetails[] peer2_chans = peer2.chan_manager.list_usable_channels();
 663         assert peer1_chans.length == 1;
 664         assert peer2_chans.length == 1;
 665         assert peer1_chans[0].get_channel_value_satoshis() == 10000;
 666         assert peer1_chans[0].get_is_usable();
 667         Option_u64Z short_chan_id = peer1_chans[0].get_short_channel_id();
 668         assert short_chan_id instanceof Option_u64Z.Some;
 669         assert ((Option_u64Z.Some)short_chan_id).some == (1L << 40); // 0th output in the 0th transaction in the 1st block
 670         assert Arrays.equals(peer1_chans[0].get_channel_id(), funding.getTxId().getReversedBytes());
 671         assert Arrays.equals(peer2_chans[0].get_channel_id(), funding.getTxId().getReversedBytes());
 672
 673         Result_InvoiceSignOrCreationErrorZ invoice = UtilMethods.create_invoice_from_channelmanager(peer2.chan_manager, peer2.keys_interface, Currency.LDKCurrency_Bitcoin, Option_u64Z.none(), "Invoice Description");
 674         assert invoice instanceof Result_InvoiceSignOrCreationErrorZ.Result_InvoiceSignOrCreationErrorZ_OK;
 675         System.out.println("Got invoice: " + ((Result_InvoiceSignOrCreationErrorZ.Result_InvoiceSignOrCreationErrorZ_OK) invoice).res.to_str());
 676
 677         Result_InvoiceNoneZ parsed_invoice = Invoice.from_str(((Result_InvoiceSignOrCreationErrorZ.Result_InvoiceSignOrCreationErrorZ_OK) invoice).res.to_str());
 678         assert parsed_invoice instanceof Result_InvoiceNoneZ.Result_InvoiceNoneZ_OK;
 679         assert Arrays.equals(((Result_InvoiceNoneZ.Result_InvoiceNoneZ_OK) parsed_invoice).res.payment_hash(), ((Result_InvoiceSignOrCreationErrorZ.Result_InvoiceSignOrCreationErrorZ_OK) invoice).res.payment_hash());
 680         SignedRawInvoice signed_raw = ((Result_InvoiceNoneZ.Result_InvoiceNoneZ_OK) parsed_invoice).res.into_signed_raw();
 681         RawInvoice raw_invoice = signed_raw.raw_invoice();
 682         byte[] desc_hash = raw_invoice.hash();
 683         Description raw_invoice_description = raw_invoice.description();
 684         String description_string = raw_invoice_description.into_inner();
 685         assert description_string.equals("Invoice Description");
 686         byte[] payment_hash = ((Result_InvoiceSignOrCreationErrorZ.Result_InvoiceSignOrCreationErrorZ_OK) invoice).res.payment_hash();
 687         byte[] payment_secret = ((Result_InvoiceSignOrCreationErrorZ.Result_InvoiceSignOrCreationErrorZ_OK) invoice).res.payment_secret();
 688         byte[] dest_node_id = ((Result_InvoiceSignOrCreationErrorZ.Result_InvoiceSignOrCreationErrorZ_OK) invoice).res.recover_payee_pub_key();
 689         assert Arrays.equals(dest_node_id, peer2.node_id);
 690         InvoiceFeatures invoice_features = ((Result_InvoiceSignOrCreationErrorZ.Result_InvoiceSignOrCreationErrorZ_OK) invoice).res.features();
 691         RouteHint[] route_hints = ((Result_InvoiceSignOrCreationErrorZ.Result_InvoiceSignOrCreationErrorZ_OK) invoice).res.route_hints();
 692
 693         Route route;
 694         try (LockedNetworkGraph netgraph = peer1.router.read_locked_graph()) {
 695             NetworkGraph graph = netgraph.graph();
 696             Result_RouteLightningErrorZ route_res = UtilMethods.get_route(peer1.chan_manager.get_our_node_id(), graph, peer2.node_id, invoice_features, peer1_chans, route_hints, 1000000, 42, peer1.logger);
 697             assert route_res instanceof Result_RouteLightningErrorZ.Result_RouteLightningErrorZ_OK;
 698             route = ((Result_RouteLightningErrorZ.Result_RouteLightningErrorZ_OK) route_res).res;
 699         }
 700
 701         Result_NonePaymentSendFailureZ payment_res = peer1.chan_manager.send_payment(route, payment_hash, payment_secret);
 702         assert payment_res instanceof Result_NonePaymentSendFailureZ.Result_NonePaymentSendFailureZ_OK;
 703
 704         RouteHop[][] hops = new RouteHop[1][1];
 705         byte[] hop_pubkey = new byte[33];
 706         hop_pubkey[0] = 3;
 707         hop_pubkey[1] = 42;
 708         hops[0][0] = RouteHop.of(hop_pubkey, NodeFeatures.known(), 42, ChannelFeatures.known(), 100, 0);
 709         Route r2 = Route.of(hops);
 710         payment_res = peer1.chan_manager.send_payment(r2, payment_hash, payment_secret);
 711         assert payment_res instanceof Result_NonePaymentSendFailureZ.Result_NonePaymentSendFailureZ_Err;
 712
 713         if (reload_peers) {
 714             if (use_chan_manager_constructor) {
 715                 peer1.constructor.interrupt();
 716                 peer2.constructor.interrupt();
 717             } else if (use_nio_peer_handler) {
 718                 peer1.nio_peer_handler.interrupt();
 719                 peer2.nio_peer_handler.interrupt();
 720             }
 721             WeakReference<Peer> op1 = new WeakReference<Peer>(peer1);
 722             peer1 = new Peer(peer1);
 723             peer2 = new Peer(peer2);
 724             return new TestState(op1, peer1, peer2, b.getHash());
 725         }
 726         return new TestState(null, peer1, peer2, b.getHash());
 727     }
 728
 729     boolean cross_reload_ref_pollution = false;
 730     class TestState {
 731         private final WeakReference<Peer> ref_block;
 732         private final Peer peer1;
 733         private final Peer peer2;
 734         public Sha256Hash best_blockhash;
 735
 736         public TestState(WeakReference<Peer> ref_block, Peer peer1, Peer peer2, Sha256Hash best_blockhash) {
 737             this.ref_block = ref_block;
 738             this.peer1 = peer1;
 739             this.peer2 = peer2;
 740             this.best_blockhash = best_blockhash;
 741         }
 742     }
 743     void do_test_message_handler_b(TestState state) throws InterruptedException {
 744         GcCheck obj = new GcCheck();
 745         if (state.ref_block != null) {
 746             // Ensure the original peers get freed before we move on. Note that we have to be in a different function
 747             // scope to do so as the (at least current OpenJDK) JRE won't release anything created in the same scope.
 748             while (!cross_reload_ref_pollution && state.ref_block.get() != null) {
 749                 System.gc();
 750                 System.runFinalization();
 751             }
 752             connect_peers(state.peer1, state.peer2);
 753         }
 754
 755         Event[] events = state.peer2.get_manager_events(1, state.peer1, state.peer2);
 756         assert events[0] instanceof Event.PendingHTLCsForwardable;
 757         state.peer2.chan_manager.process_pending_htlc_forwards();
 758
 759         events = state.peer2.get_manager_events(1, state.peer1, state.peer2);
 760         assert events[0] instanceof Event.PaymentReceived;
 761         byte[] payment_preimage = ((Event.PaymentReceived)events[0]).payment_preimage;
 762         assert !Arrays.equals(payment_preimage, new byte[32]);
 763         state.peer2.chan_manager.claim_funds(payment_preimage);
 764
 765         events = state.peer1.get_manager_events(1, state.peer1, state.peer2);
 766         assert events[0] instanceof Event.PaymentSent;
 767         assert Arrays.equals(((Event.PaymentSent) events[0]).payment_preimage, payment_preimage);
 768
 769         if (use_nio_peer_handler) {
 770             // We receive PaymentSent immediately upon receipt of the payment preimage, but we expect to not have an
 771             // HTLC transaction to broadcast below, which requires a bit more time to fully complete the
 772             // commitment-transaction-update dance between both peers.
 773             Thread.sleep(100);
 774         }
 775
 776         ChannelDetails[] peer1_chans = state.peer1.chan_manager.list_channels();
 777
 778         if (nice_close) {
 779             Result_NoneAPIErrorZ close_res = state.peer1.chan_manager.close_channel(peer1_chans[0].get_channel_id());
 780             assert close_res instanceof Result_NoneAPIErrorZ.Result_NoneAPIErrorZ_OK;
 781             maybe_exchange_peer_messages(state.peer1, state.peer2);
 782             synchronized (state.peer1.broadcast_set) {
 783                 while (state.peer1.broadcast_set.size() != 1) state.peer1.broadcast_set.wait();
 784             }
 785             synchronized (state.peer2.broadcast_set) {
 786                 while (state.peer2.broadcast_set.size() != 1) state.peer2.broadcast_set.wait();
 787             }
 788
 789             assert state.peer1.broadcast_set.size() == 1;
 790             assert state.peer2.broadcast_set.size() == 1;
 791         } else {
 792             state.peer1.chan_manager.force_close_all_channels();
 793             maybe_exchange_peer_messages(state.peer1, state.peer2);
 794             synchronized (state.peer1.broadcast_set) {
 795                 while (state.peer1.broadcast_set.size() != 1) state.peer1.broadcast_set.wait();
 796             }
 797             synchronized (state.peer2.broadcast_set) {
 798                 while (state.peer2.broadcast_set.size() != 1) state.peer2.broadcast_set.wait();
 799             }
 800
 801             assert state.peer1.broadcast_set.size() == 1;
 802             assert state.peer2.broadcast_set.size() == 1;
 803
 804             NetworkParameters bitcoinj_net = NetworkParameters.fromID(NetworkParameters.ID_MAINNET);
 805             Transaction tx = new Transaction(bitcoinj_net, state.peer1.broadcast_set.getFirst());
 806             Block b = new Block(bitcoinj_net, 2, state.best_blockhash, Sha256Hash.ZERO_HASH, 42, 0, 0,
 807                     Arrays.asList(new Transaction[]{tx}));
 808             TwoTuple<byte[], TwoTuple<Integer, TxOut>[]>[] watch_outputs = state.peer2.connect_block(b, 10, 1);
 809             if (watch_outputs != null) { // We only process watch_outputs manually when we use a manually-build Watch impl
 810                 assert watch_outputs.length == 1;
 811                 assert Arrays.equals(watch_outputs[0].a, tx.getTxId().getReversedBytes());
 812                 assert watch_outputs[0].b.length == 2;
 813                 assert watch_outputs[0].b[0].a == 0;
 814                 assert watch_outputs[0].b[1].a == 1;
 815             }
 816
 817             for (int i = 11; i < 21; i++) {
 818                 b = new Block(bitcoinj_net, 2, b.getHash(), Sha256Hash.ZERO_HASH, 42, 0, 0, new ArrayList<>());
 819                 state.peer2.connect_block(b, i, 0);
 820             }
 821
 822             Event[] broadcastable_event = state.peer2.get_monitor_events(1);
 823             for (ChannelMonitor mon : state.peer2.monitors.values()) {
 824                 // This used to be buggy and double-free, so go ahead and fetch them!
 825                 byte[][] txn = mon.get_latest_holder_commitment_txn(state.peer2.logger);
 826             }
 827             assert broadcastable_event.length == 1;
 828             assert broadcastable_event[0] instanceof Event.SpendableOutputs;
 829             if (state.peer2.explicit_keys_manager != null) {
 830                 Result_TransactionNoneZ tx_res = state.peer2.explicit_keys_manager.spend_spendable_outputs(((Event.SpendableOutputs) broadcastable_event[0]).outputs, new TxOut[0], new byte[] {0x00}, 253);
 831                 assert tx_res instanceof Result_TransactionNoneZ.Result_TransactionNoneZ_OK;
 832                 Transaction built_tx = new Transaction(bitcoinj_net, ((Result_TransactionNoneZ.Result_TransactionNoneZ_OK) tx_res).res);
 833                 assert built_tx.getOutputs().size() == 1;
 834                 assert Arrays.equals(built_tx.getOutput(0).getScriptBytes(), new byte[]{0x00});
 835             }
 836         }
 837
 838         if (use_nio_peer_handler) {
 839             state.peer1.peer_manager.disconnect_by_node_id(state.peer2.chan_manager.get_our_node_id(), false);
 840             while (state.peer1.peer_manager.get_peer_node_ids().length != 0) Thread.yield();
 841             while (state.peer2.peer_manager.get_peer_node_ids().length != 0) Thread.yield();
 842             state.peer1.nio_peer_handler.interrupt();
 843             state.peer2.nio_peer_handler.interrupt();
 844         }
 845
 846         state.peer1.get_monitor_events(0);
 847         state.peer2.get_monitor_events(0);
 848
 849         if (use_chan_manager_constructor) {
 850             state.peer1.constructor.interrupt();
 851             state.peer2.constructor.interrupt();
 852         }
 853
 854         t.interrupt();
 855     }
 856
 857     java.util.LinkedList<WeakReference<Object>> must_free_objs = new java.util.LinkedList();
 858     int gc_count = 0;
 859     int gc_exp_count = 0;
 860     class GcCheck {
 861         GcCheck() { gc_exp_count += 1; }
 862         @Override
 863         protected void finalize() throws Throwable {
 864             gc_count += 1;
 865             super.finalize();
 866         }
 867     }
 868 }
 869 public class HumanObjectPeerTest {
 870     HumanObjectPeerTestInstance do_test_run(boolean nice_close, boolean use_km_wrapper, boolean use_manual_watch, boolean reload_peers, boolean break_cross_peer_refs, boolean nio_peer_handler, boolean use_chan_manager_constructor) throws InterruptedException {
 871         HumanObjectPeerTestInstance instance = new HumanObjectPeerTestInstance(nice_close, use_km_wrapper, use_manual_watch, reload_peers, break_cross_peer_refs, nio_peer_handler, !nio_peer_handler, use_chan_manager_constructor);
 872         HumanObjectPeerTestInstance.TestState state = instance.do_test_message_handler();
 873         instance.do_test_message_handler_b(state);
 874         return instance;
 875     }
 876     void do_test(boolean nice_close, boolean use_km_wrapper, boolean use_manual_watch, boolean reload_peers, boolean break_cross_peer_refs, boolean nio_peer_handler, boolean use_chan_manager_constructor) throws InterruptedException {
 877         HumanObjectPeerTestInstance instance = do_test_run(nice_close, use_km_wrapper, use_manual_watch, reload_peers, break_cross_peer_refs, nio_peer_handler, use_chan_manager_constructor);
 878         while (instance.gc_count != instance.gc_exp_count) {
 879             System.gc();
 880             System.runFinalization();
 881         }
 882         for (WeakReference<Object> o : instance.must_free_objs)
 883             assert o.get() == null;
 884     }
 885     @Test
 886     public void test_message_handler() throws InterruptedException {
 887         for (int i = 0; i < (1 << 7) - 1; i++) {
 888             boolean nice_close =                   (i & (1 << 0)) != 0;
 889             boolean use_km_wrapper =               (i & (1 << 1)) != 0;
 890             boolean use_manual_watch =             (i & (1 << 2)) != 0;
 891             boolean reload_peers =                 (i & (1 << 3)) != 0;
 892             boolean break_cross_refs =             (i & (1 << 4)) != 0;
 893             boolean nio_peer_handler =             (i & (1 << 5)) != 0;
 894             boolean use_chan_manager_constructor = (i & (1 << 6)) != 0;
 895             if (break_cross_refs && !reload_peers) {
 896                 // There are no cross refs to break without reloading peers.
 897                 continue;
 898             }
 899             if (use_chan_manager_constructor && (use_manual_watch || !nio_peer_handler)) {
 900                 // ChannelManagerConstructor requires a ChainMonitor as the Watch and creates a NioPeerHandler for us.
 901                 continue;
 902             }
 903             System.err.println("Running test with flags " + i);
 904             do_test(nice_close, use_km_wrapper, use_manual_watch, reload_peers, break_cross_refs, nio_peer_handler, use_chan_manager_constructor);
 905         }
 906     }
 907
 908     // This is used in the test jar to test the built jar is runnable
 909     public static void main(String[] args) {
 910         try {
 911             new HumanObjectPeerTest().test_message_handler();
 912         } catch (Exception e) {
 913             System.err.println("Caught exception:");
 914             System.err.println(e);
 915             System.exit(1);
 916         }
 917     }
 918 }