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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.128 by jsr166, Sun Nov 15 00:37:50 2015 UTC vs.
Revision 1.161 by jsr166, Tue Jun 28 14:49:48 2016 UTC

#	Line 30 | Line 30 | import java.util.concurrent.ExecutionExc
30		import java.util.concurrent.Executor;
31		import java.util.concurrent.ForkJoinPool;
32		import java.util.concurrent.ForkJoinTask;
33	+	import java.util.concurrent.RejectedExecutionException;
34		import java.util.concurrent.TimeoutException;
35		import java.util.concurrent.TimeUnit;
36		import java.util.concurrent.atomic.AtomicInteger;
#	Line 459 | Line 460 | public class CompletableFutureTest exten
460		class FailingSupplier extends CheckedAction
461		implements Supplier<Integer>
462		{
463	<	FailingSupplier(ExecutionMode m) { super(m); }
463	>	final CFException ex;
464	>	FailingSupplier(ExecutionMode m) { super(m); ex = new CFException(); }
465		public Integer get() {
466		invoked();
467	<	throw new CFException();
467	>	throw ex;
468		}
469		}
470
471		class FailingConsumer extends CheckedIntegerAction
472		implements Consumer<Integer>
473		{
474	<	FailingConsumer(ExecutionMode m) { super(m); }
474	>	final CFException ex;
475	>	FailingConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
476		public void accept(Integer x) {
477		invoked();
478		value = x;
479	<	throw new CFException();
479	>	throw ex;
480		}
481		}
482
483		class FailingBiConsumer extends CheckedIntegerAction
484		implements BiConsumer<Integer, Integer>
485		{
486	<	FailingBiConsumer(ExecutionMode m) { super(m); }
486	>	final CFException ex;
487	>	FailingBiConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
488		public void accept(Integer x, Integer y) {
489		invoked();
490		value = subtract(x, y);
491	<	throw new CFException();
491	>	throw ex;
492		}
493		}
494
495		class FailingFunction extends CheckedIntegerAction
496		implements Function<Integer, Integer>
497		{
498	<	FailingFunction(ExecutionMode m) { super(m); }
498	>	final CFException ex;
499	>	FailingFunction(ExecutionMode m) { super(m); ex = new CFException(); }
500		public Integer apply(Integer x) {
501		invoked();
502		value = x;
503	<	throw new CFException();
503	>	throw ex;
504		}
505		}
506
507		class FailingBiFunction extends CheckedIntegerAction
508		implements BiFunction<Integer, Integer, Integer>
509		{
510	<	FailingBiFunction(ExecutionMode m) { super(m); }
510	>	final CFException ex;
511	>	FailingBiFunction(ExecutionMode m) { super(m); ex = new CFException(); }
512		public Integer apply(Integer x, Integer y) {
513		invoked();
514		value = subtract(x, y);
515	<	throw new CFException();
515	>	throw ex;
516		}
517		}
518
519		class FailingRunnable extends CheckedAction implements Runnable {
520	<	FailingRunnable(ExecutionMode m) { super(m); }
520	>	final CFException ex;
521	>	FailingRunnable(ExecutionMode m) { super(m); ex = new CFException(); }
522		public void run() {
523		invoked();
524	<	throw new CFException();
524	>	throw ex;
525		}
526		}
527
#	Line 534 | Line 541 | public class CompletableFutureTest exten
541		class FailingCompletableFutureFunction extends CheckedIntegerAction
542		implements Function<Integer, CompletableFuture<Integer>>
543		{
544	<	FailingCompletableFutureFunction(ExecutionMode m) { super(m); }
544	>	final CFException ex;
545	>	FailingCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
546		public CompletableFuture<Integer> apply(Integer x) {
547		invoked();
548		value = x;
549	<	throw new CFException();
549	>	throw ex;
550	>	}
551	>	}
552	>
553	>	static class CountingRejectingExecutor implements Executor {
554	>	final RejectedExecutionException ex = new RejectedExecutionException();
555	>	final AtomicInteger count = new AtomicInteger(0);
556	>	public void execute(Runnable r) {
557	>	count.getAndIncrement();
558	>	throw ex;
559		}
560		}
561
#	Line 876 | Line 893 | public class CompletableFutureTest exten
893		assertEquals(1, a.get());
894		}}
895
896	+	/**
897	+	* If an "exceptionally action" throws an exception, it completes
898	+	* exceptionally with that exception
899	+	*/
900		public void testExceptionally_exceptionalCompletionActionFailed() {
901		for (boolean createIncomplete : new boolean[] { true, false })
902		{
#	Line 894 | Line 915 | public class CompletableFutureTest exten
915		if (createIncomplete) f.completeExceptionally(ex1);
916
917		checkCompletedWithWrappedException(g, ex2);
918	+	checkCompletedExceptionally(f, ex1);
919		assertEquals(1, a.get());
920		}}
921
#	Line 911 | Line 933 | public class CompletableFutureTest exten
933		if (!createIncomplete) assertTrue(f.complete(v1));
934		final CompletableFuture<Integer> g = m.whenComplete
935		(f,
936	<	(Integer x, Throwable t) -> {
936	>	(Integer result, Throwable t) -> {
937		m.checkExecutionMode();
938	<	threadAssertSame(x, v1);
938	>	threadAssertSame(result, v1);
939		threadAssertNull(t);
940		a.getAndIncrement();
941		});
#	Line 938 | Line 960 | public class CompletableFutureTest exten
960		if (!createIncomplete) f.completeExceptionally(ex);
961		final CompletableFuture<Integer> g = m.whenComplete
962		(f,
963	<	(Integer x, Throwable t) -> {
963	>	(Integer result, Throwable t) -> {
964		m.checkExecutionMode();
965	<	threadAssertNull(x);
965	>	threadAssertNull(result);
966		threadAssertSame(t, ex);
967		a.getAndIncrement();
968		});
#	Line 965 | Line 987 | public class CompletableFutureTest exten
987		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
988		final CompletableFuture<Integer> g = m.whenComplete
989		(f,
990	<	(Integer x, Throwable t) -> {
990	>	(Integer result, Throwable t) -> {
991		m.checkExecutionMode();
992	<	threadAssertNull(x);
992	>	threadAssertNull(result);
993		threadAssertTrue(t instanceof CancellationException);
994		a.getAndIncrement();
995		});
#	Line 982 | Line 1004 | public class CompletableFutureTest exten
1004		* If a whenComplete action throws an exception when triggered by
1005		* a normal completion, it completes exceptionally
1006		*/
1007	<	public void testWhenComplete_actionFailed() {
1007	>	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
1008		for (boolean createIncomplete : new boolean[] { true, false })
1009		for (ExecutionMode m : ExecutionMode.values())
1010		for (Integer v1 : new Integer[] { 1, null })
#	Line 993 | Line 1015 | public class CompletableFutureTest exten
1015		if (!createIncomplete) assertTrue(f.complete(v1));
1016		final CompletableFuture<Integer> g = m.whenComplete
1017		(f,
1018	<	(Integer x, Throwable t) -> {
1018	>	(Integer result, Throwable t) -> {
1019		m.checkExecutionMode();
1020	<	threadAssertSame(x, v1);
1020	>	threadAssertSame(result, v1);
1021		threadAssertNull(t);
1022		a.getAndIncrement();
1023		throw ex;
#	Line 1010 | Line 1032 | public class CompletableFutureTest exten
1032		/**
1033		* If a whenComplete action throws an exception when triggered by
1034		* a source completion that also throws an exception, the source
1035	<	* exception takes precedence.
1035	>	* exception takes precedence (unlike handle)
1036		*/
1037	<	public void testWhenComplete_actionFailedSourceFailed() {
1037	>	public void testWhenComplete_sourceFailedActionFailed() {
1038		for (boolean createIncomplete : new boolean[] { true, false })
1039		for (ExecutionMode m : ExecutionMode.values())
1040		{
#	Line 1024 | Line 1046 | public class CompletableFutureTest exten
1046		if (!createIncomplete) f.completeExceptionally(ex1);
1047		final CompletableFuture<Integer> g = m.whenComplete
1048		(f,
1049	<	(Integer x, Throwable t) -> {
1049	>	(Integer result, Throwable t) -> {
1050		m.checkExecutionMode();
1051		threadAssertSame(t, ex1);
1052	<	threadAssertNull(x);
1052	>	threadAssertNull(result);
1053		a.getAndIncrement();
1054		throw ex2;
1055		});
#	Line 1035 | Line 1057 | public class CompletableFutureTest exten
1057
1058		checkCompletedWithWrappedException(g, ex1);
1059		checkCompletedExceptionally(f, ex1);
1060	+	if (testImplementationDetails) {
1061	+	assertEquals(1, ex1.getSuppressed().length);
1062	+	assertSame(ex2, ex1.getSuppressed()[0]);
1063	+	}
1064		assertEquals(1, a.get());
1065		}}
1066
#	Line 1052 | Line 1078 | public class CompletableFutureTest exten
1078		if (!createIncomplete) assertTrue(f.complete(v1));
1079		final CompletableFuture<Integer> g = m.handle
1080		(f,
1081	<	(Integer x, Throwable t) -> {
1081	>	(Integer result, Throwable t) -> {
1082		m.checkExecutionMode();
1083	<	threadAssertSame(x, v1);
1083	>	threadAssertSame(result, v1);
1084		threadAssertNull(t);
1085		a.getAndIncrement();
1086		return inc(v1);
#	Line 1081 | Line 1107 | public class CompletableFutureTest exten
1107		if (!createIncomplete) f.completeExceptionally(ex);
1108		final CompletableFuture<Integer> g = m.handle
1109		(f,
1110	<	(Integer x, Throwable t) -> {
1110	>	(Integer result, Throwable t) -> {
1111		m.checkExecutionMode();
1112	<	threadAssertNull(x);
1112	>	threadAssertNull(result);
1113		threadAssertSame(t, ex);
1114		a.getAndIncrement();
1115		return v1;
#	Line 1110 | Line 1136 | public class CompletableFutureTest exten
1136		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1137		final CompletableFuture<Integer> g = m.handle
1138		(f,
1139	<	(Integer x, Throwable t) -> {
1139	>	(Integer result, Throwable t) -> {
1140		m.checkExecutionMode();
1141	<	threadAssertNull(x);
1141	>	threadAssertNull(result);
1142		threadAssertTrue(t instanceof CancellationException);
1143		a.getAndIncrement();
1144		return v1;
#	Line 1125 | Line 1151 | public class CompletableFutureTest exten
1151		}}
1152
1153		/**
1154	<	* handle result completes exceptionally if action does
1154	>	* If a "handle action" throws an exception when triggered by
1155	>	* a normal completion, it completes exceptionally
1156		*/
1157	<	public void testHandle_sourceFailedActionFailed() {
1157	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1158		for (ExecutionMode m : ExecutionMode.values())
1159		for (boolean createIncomplete : new boolean[] { true, false })
1160	+	for (Integer v1 : new Integer[] { 1, null })
1161		{
1162		final CompletableFuture<Integer> f = new CompletableFuture<>();
1163		final AtomicInteger a = new AtomicInteger(0);
1164	<	final CFException ex1 = new CFException();
1165	<	final CFException ex2 = new CFException();
1138	<	if (!createIncomplete) f.completeExceptionally(ex1);
1164	>	final CFException ex = new CFException();
1165	>	if (!createIncomplete) assertTrue(f.complete(v1));
1166		final CompletableFuture<Integer> g = m.handle
1167		(f,
1168	<	(Integer x, Throwable t) -> {
1168	>	(Integer result, Throwable t) -> {
1169		m.checkExecutionMode();
1170	<	threadAssertNull(x);
1171	<	threadAssertSame(ex1, t);
1170	>	threadAssertSame(result, v1);
1171	>	threadAssertNull(t);
1172		a.getAndIncrement();
1173	<	throw ex2;
1173	>	throw ex;
1174		});
1175	<	if (createIncomplete) f.completeExceptionally(ex1);
1175	>	if (createIncomplete) assertTrue(f.complete(v1));
1176
1177	<	checkCompletedWithWrappedException(g, ex2);
1178	<	checkCompletedExceptionally(f, ex1);
1177	>	checkCompletedWithWrappedException(g, ex);
1178	>	checkCompletedNormally(f, v1);
1179		assertEquals(1, a.get());
1180		}}
1181
1182	<	public void testHandle_sourceCompletedNormallyActionFailed() {
1183	<	for (ExecutionMode m : ExecutionMode.values())
1182	>	/**
1183	>	* If a "handle action" throws an exception when triggered by
1184	>	* a source completion that also throws an exception, the action
1185	>	* exception takes precedence (unlike whenComplete)
1186	>	*/
1187	>	public void testHandle_sourceFailedActionFailed() {
1188		for (boolean createIncomplete : new boolean[] { true, false })
1189	<	for (Integer v1 : new Integer[] { 1, null })
1189	>	for (ExecutionMode m : ExecutionMode.values())
1190		{
1160	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
1191		final AtomicInteger a = new AtomicInteger(0);
1192	<	final CFException ex = new CFException();
1193	<	if (!createIncomplete) assertTrue(f.complete(v1));
1192	>	final CFException ex1 = new CFException();
1193	>	final CFException ex2 = new CFException();
1194	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1195	>
1196	>	if (!createIncomplete) f.completeExceptionally(ex1);
1197		final CompletableFuture<Integer> g = m.handle
1198		(f,
1199	<	(Integer x, Throwable t) -> {
1199	>	(Integer result, Throwable t) -> {
1200		m.checkExecutionMode();
1201	<	threadAssertSame(x, v1);
1202	<	threadAssertNull(t);
1201	>	threadAssertNull(result);
1202	>	threadAssertSame(ex1, t);
1203		a.getAndIncrement();
1204	<	throw ex;
1204	>	throw ex2;
1205		});
1206	<	if (createIncomplete) assertTrue(f.complete(v1));
1206	>	if (createIncomplete) f.completeExceptionally(ex1);
1207
1208	<	checkCompletedWithWrappedException(g, ex);
1209	<	checkCompletedNormally(f, v1);
1208	>	checkCompletedWithWrappedException(g, ex2);
1209	>	checkCompletedExceptionally(f, ex1);
1210		assertEquals(1, a.get());
1211		}}
1212
#	Line 1206 | Line 1239 | public class CompletableFutureTest exten
1239		{
1240		final FailingRunnable r = new FailingRunnable(m);
1241		final CompletableFuture<Void> f = m.runAsync(r);
1242	<	checkCompletedWithWrappedCFException(f);
1242	>	checkCompletedWithWrappedException(f, r.ex);
1243		r.assertInvoked();
1244		}}
1245
1246	+	public void testRunAsync_rejectingExecutor() {
1247	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1248	+	try {
1249	+	CompletableFuture.runAsync(() -> {}, e);
1250	+	shouldThrow();
1251	+	} catch (Throwable t) {
1252	+	assertSame(e.ex, t);
1253	+	}
1254	+
1255	+	assertEquals(1, e.count.get());
1256	+	}
1257	+
1258		/**
1259		* supplyAsync completes with result of supplier
1260		*/
#	Line 1240 | Line 1285 | public class CompletableFutureTest exten
1285		{
1286		FailingSupplier r = new FailingSupplier(m);
1287		CompletableFuture<Integer> f = m.supplyAsync(r);
1288	<	checkCompletedWithWrappedCFException(f);
1288	>	checkCompletedWithWrappedException(f, r.ex);
1289		r.assertInvoked();
1290		}}
1291
1292	+	public void testSupplyAsync_rejectingExecutor() {
1293	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1294	+	try {
1295	+	CompletableFuture.supplyAsync(() -> null, e);
1296	+	shouldThrow();
1297	+	} catch (Throwable t) {
1298	+	assertSame(e.ex, t);
1299	+	}
1300	+
1301	+	assertEquals(1, e.count.get());
1302	+	}
1303	+
1304		// seq completion methods
1305
1306		/**
#	Line 1362 | Line 1419 | public class CompletableFutureTest exten
1419		final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1420		final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1421
1422	<	checkCompletedWithWrappedCFException(h0);
1423	<	checkCompletedWithWrappedCFException(h1);
1424	<	checkCompletedWithWrappedCFException(h2);
1425	<	checkCompletedWithWrappedCFException(h3);
1426	<	checkCompletedWithWrappedCFException(h4);
1427	<	checkCompletedWithWrappedCFException(h5);
1422	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1423	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1424	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1425	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1426	>	checkCompletedWithWrappedException(h4, rs[4].ex);
1427	>	checkCompletedWithWrappedException(h5, rs[5].ex);
1428		checkCompletedNormally(f, v1);
1429		}}
1430
#	Line 1466 | Line 1523 | public class CompletableFutureTest exten
1523		final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1524		final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1525
1526	<	checkCompletedWithWrappedCFException(h0);
1527	<	checkCompletedWithWrappedCFException(h1);
1528	<	checkCompletedWithWrappedCFException(h2);
1529	<	checkCompletedWithWrappedCFException(h3);
1526	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1527	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1528	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1529	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1530		checkCompletedNormally(f, v1);
1531		}}
1532
#	Line 1568 | Line 1625 | public class CompletableFutureTest exten
1625		final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1626		final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1627
1628	<	checkCompletedWithWrappedCFException(h0);
1629	<	checkCompletedWithWrappedCFException(h1);
1630	<	checkCompletedWithWrappedCFException(h2);
1631	<	checkCompletedWithWrappedCFException(h3);
1628	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1629	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1630	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1631	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1632		checkCompletedNormally(f, v1);
1633		}}
1634
#	Line 1733 | Line 1790 | public class CompletableFutureTest exten
1790		assertTrue(snd.complete(w2));
1791		final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1792
1793	<	checkCompletedWithWrappedCFException(h1);
1794	<	checkCompletedWithWrappedCFException(h2);
1795	<	checkCompletedWithWrappedCFException(h3);
1793	>	checkCompletedWithWrappedException(h1, r1.ex);
1794	>	checkCompletedWithWrappedException(h2, r2.ex);
1795	>	checkCompletedWithWrappedException(h3, r3.ex);
1796		r1.assertInvoked();
1797		r2.assertInvoked();
1798		r3.assertInvoked();
#	Line 1897 | Line 1954 | public class CompletableFutureTest exten
1954		assertTrue(snd.complete(w2));
1955		final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1956
1957	<	checkCompletedWithWrappedCFException(h1);
1958	<	checkCompletedWithWrappedCFException(h2);
1959	<	checkCompletedWithWrappedCFException(h3);
1957	>	checkCompletedWithWrappedException(h1, r1.ex);
1958	>	checkCompletedWithWrappedException(h2, r2.ex);
1959	>	checkCompletedWithWrappedException(h3, r3.ex);
1960		r1.assertInvoked();
1961		r2.assertInvoked();
1962		r3.assertInvoked();
#	Line 2061 | Line 2118 | public class CompletableFutureTest exten
2118		assertTrue(snd.complete(w2));
2119		final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2120
2121	<	checkCompletedWithWrappedCFException(h1);
2122	<	checkCompletedWithWrappedCFException(h2);
2123	<	checkCompletedWithWrappedCFException(h3);
2121	>	checkCompletedWithWrappedException(h1, r1.ex);
2122	>	checkCompletedWithWrappedException(h2, r2.ex);
2123	>	checkCompletedWithWrappedException(h3, r3.ex);
2124		r1.assertInvoked();
2125		r2.assertInvoked();
2126		r3.assertInvoked();
#	Line 2353 | Line 2410 | public class CompletableFutureTest exten
2410		f.complete(v1);
2411		final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2412		final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2413	<	checkCompletedWithWrappedCFException(h0);
2414	<	checkCompletedWithWrappedCFException(h1);
2415	<	checkCompletedWithWrappedCFException(h2);
2416	<	checkCompletedWithWrappedCFException(h3);
2413	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2414	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2415	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2416	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2417		for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2418
2419		g.complete(v2);
#	Line 2365 | Line 2422 | public class CompletableFutureTest exten
2422		final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2423		final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2424
2425	<	checkCompletedWithWrappedCFException(h4);
2425	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2426		assertTrue(Objects.equals(v1, rs[4].value) ||
2427		Objects.equals(v2, rs[4].value));
2428	<	checkCompletedWithWrappedCFException(h5);
2428	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2429		assertTrue(Objects.equals(v1, rs[5].value) ||
2430		Objects.equals(v2, rs[5].value));
2431
#	Line 2612 | Line 2669 | public class CompletableFutureTest exten
2669		f.complete(v1);
2670		final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2671		final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2672	<	checkCompletedWithWrappedCFException(h0);
2673	<	checkCompletedWithWrappedCFException(h1);
2674	<	checkCompletedWithWrappedCFException(h2);
2675	<	checkCompletedWithWrappedCFException(h3);
2672	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2673	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2674	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2675	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2676		for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2677
2678		g.complete(v2);
#	Line 2624 | Line 2681 | public class CompletableFutureTest exten
2681		final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2682		final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2683
2684	<	checkCompletedWithWrappedCFException(h4);
2684	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2685		assertTrue(Objects.equals(v1, rs[4].value) ||
2686		Objects.equals(v2, rs[4].value));
2687	<	checkCompletedWithWrappedCFException(h5);
2687	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2688		assertTrue(Objects.equals(v1, rs[5].value) ||
2689		Objects.equals(v2, rs[5].value));
2690
#	Line 2867 | Line 2924 | public class CompletableFutureTest exten
2924		assertTrue(f.complete(v1));
2925		final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2926		final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2927	<	checkCompletedWithWrappedCFException(h0);
2928	<	checkCompletedWithWrappedCFException(h1);
2929	<	checkCompletedWithWrappedCFException(h2);
2930	<	checkCompletedWithWrappedCFException(h3);
2927	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2928	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2929	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2930	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2931		for (int i = 0; i < 4; i++) rs[i].assertInvoked();
2932		assertTrue(g.complete(v2));
2933		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2934		final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2935	<	checkCompletedWithWrappedCFException(h4);
2936	<	checkCompletedWithWrappedCFException(h5);
2935	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2936	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2937
2938		checkCompletedNormally(f, v1);
2939		checkCompletedNormally(g, v2);
#	Line 2937 | Line 2994 | public class CompletableFutureTest exten
2994		final CompletableFuture<Integer> g = m.thenCompose(f, r);
2995		if (createIncomplete) assertTrue(f.complete(v1));
2996
2997	<	checkCompletedWithWrappedCFException(g);
2997	>	checkCompletedWithWrappedException(g, r.ex);
2998		checkCompletedNormally(f, v1);
2999		}}
3000
#	Line 3046 | Line 3103 | public class CompletableFutureTest exten
3103		}
3104		}
3105
3106	<	public void testAllOf_backwards() throws Exception {
3106	>	public void testAllOf_normal_backwards() throws Exception {
3107		for (int k = 1; k < 10; k++) {
3108		CompletableFuture<Integer>[] fs
3109		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
#	Line 3279 | Line 3336 | public class CompletableFutureTest exten
3336		() -> f.obtrudeException(null),
3337
3338		() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3339	<	() -> CompletableFuture.delayedExecutor(1L, null, new ThreadExecutor()),
3339	>	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3340		() -> CompletableFuture.delayedExecutor(1L, null),
3341
3342		() -> f.orTimeout(1L, null),
#	Line 3294 | Line 3351 | public class CompletableFutureTest exten
3351		}
3352
3353		/**
3354	+	* Test submissions to an executor that rejects all tasks.
3355	+	*/
3356	+	public void testRejectingExecutor() {
3357	+	for (Integer v : new Integer[] { 1, null })
3358	+	{
3359	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3360	+
3361	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3362	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3363	+
3364	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3365	+
3366	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3367	+	srcs.add(complete);
3368	+	srcs.add(incomplete);
3369	+
3370	+	for (CompletableFuture<Integer> src : srcs) {
3371	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3372	+	fs.add(src.thenRunAsync(() -> {}, e));
3373	+	fs.add(src.thenAcceptAsync((z) -> {}, e));
3374	+	fs.add(src.thenApplyAsync((z) -> z, e));
3375	+
3376	+	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3377	+	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3378	+	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3379	+
3380	+	fs.add(src.applyToEitherAsync(src, (z) -> z, e));
3381	+	fs.add(src.acceptEitherAsync(src, (z) -> {}, e));
3382	+	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3383	+
3384	+	fs.add(src.thenComposeAsync((z) -> null, e));
3385	+	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3386	+	fs.add(src.handleAsync((z, t) -> null, e));
3387	+
3388	+	for (CompletableFuture<?> future : fs) {
3389	+	if (src.isDone())
3390	+	checkCompletedWithWrappedException(future, e.ex);
3391	+	else
3392	+	checkIncomplete(future);
3393	+	}
3394	+	futures.addAll(fs);
3395	+	}
3396	+
3397	+	{
3398	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3399	+
3400	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3401	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3402	+
3403	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3404	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3405	+
3406	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3407	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3408	+
3409	+	for (CompletableFuture<?> future : fs)
3410	+	checkIncomplete(future);
3411	+	futures.addAll(fs);
3412	+	}
3413	+
3414	+	{
3415	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3416	+
3417	+	fs.add(complete.applyToEitherAsync(incomplete, (z) -> z, e));
3418	+	fs.add(incomplete.applyToEitherAsync(complete, (z) -> z, e));
3419	+
3420	+	fs.add(complete.acceptEitherAsync(incomplete, (z) -> {}, e));
3421	+	fs.add(incomplete.acceptEitherAsync(complete, (z) -> {}, e));
3422	+
3423	+	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3424	+	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3425	+
3426	+	for (CompletableFuture<?> future : fs)
3427	+	checkCompletedWithWrappedException(future, e.ex);
3428	+	futures.addAll(fs);
3429	+	}
3430	+
3431	+	incomplete.complete(v);
3432	+
3433	+	for (CompletableFuture<?> future : futures)
3434	+	checkCompletedWithWrappedException(future, e.ex);
3435	+
3436	+	assertEquals(futures.size(), e.count.get());
3437	+	}}
3438	+
3439	+	/**
3440	+	* Test submissions to an executor that rejects all tasks, but
3441	+	* should never be invoked because the dependent future is
3442	+	* explicitly completed.
3443	+	*/
3444	+	public void testRejectingExecutorNeverInvoked() {
3445	+	for (Integer v : new Integer[] { 1, null })
3446	+	{
3447	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3448	+
3449	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3450	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3451	+
3452	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3453	+
3454	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3455	+	srcs.add(complete);
3456	+	srcs.add(incomplete);
3457	+
3458	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3459	+	fs.add(incomplete.thenRunAsync(() -> {}, e));
3460	+	fs.add(incomplete.thenAcceptAsync((z) -> {}, e));
3461	+	fs.add(incomplete.thenApplyAsync((z) -> z, e));
3462	+
3463	+	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3464	+	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3465	+	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3466	+
3467	+	fs.add(incomplete.applyToEitherAsync(incomplete, (z) -> z, e));
3468	+	fs.add(incomplete.acceptEitherAsync(incomplete, (z) -> {}, e));
3469	+	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3470	+
3471	+	fs.add(incomplete.thenComposeAsync((z) -> null, e));
3472	+	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3473	+	fs.add(incomplete.handleAsync((z, t) -> null, e));
3474	+
3475	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3476	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3477	+
3478	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3479	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3480	+
3481	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3482	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3483	+
3484	+	for (CompletableFuture<?> future : fs)
3485	+	checkIncomplete(future);
3486	+
3487	+	for (CompletableFuture<?> future : fs)
3488	+	future.complete(null);
3489	+
3490	+	incomplete.complete(v);
3491	+
3492	+	for (CompletableFuture<?> future : fs)
3493	+	checkCompletedNormally(future, null);
3494	+
3495	+	assertEquals(0, e.count.get());
3496	+	}}
3497	+
3498	+	/**
3499		* toCompletableFuture returns this CompletableFuture.
3500		*/
3501		public void testToCompletableFuture() {
#	Line 3509 | Line 3711 | public class CompletableFutureTest exten
3711		long timeoutMillis = timeoutMillis();
3712		CompletableFuture<Integer> f = new CompletableFuture<>();
3713		long startTime = System.nanoTime();
3714	<	f.orTimeout(timeoutMillis, MILLISECONDS);
3714	>	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3715		checkCompletedWithTimeoutException(f);
3716		assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3717		}
#	Line 3524 | Line 3726 | public class CompletableFutureTest exten
3726		CompletableFuture<Integer> g = new CompletableFuture<>();
3727		long startTime = System.nanoTime();
3728		f.complete(v1);
3729	<	f.orTimeout(LONG_DELAY_MS, MILLISECONDS);
3730	<	g.orTimeout(LONG_DELAY_MS, MILLISECONDS);
3729	>	assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3730	>	assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3731		g.complete(v1);
3732		checkCompletedNormally(f, v1);
3733		checkCompletedNormally(g, v1);
#	Line 3540 | Line 3742 | public class CompletableFutureTest exten
3742		() -> testCompleteOnTimeout_timesOut(null));
3743		}
3744
3745	+	/**
3746	+	* completeOnTimeout completes with given value if not complete
3747	+	*/
3748		public void testCompleteOnTimeout_timesOut(Integer v) {
3749		long timeoutMillis = timeoutMillis();
3750		CompletableFuture<Integer> f = new CompletableFuture<>();
3751		long startTime = System.nanoTime();
3752	<	f.completeOnTimeout(v, timeoutMillis, MILLISECONDS);
3752	>	assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS));
3753		assertSame(v, f.join());
3754		assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3755		f.complete(99);         // should have no effect
#	Line 3561 | Line 3766 | public class CompletableFutureTest exten
3766		CompletableFuture<Integer> g = new CompletableFuture<>();
3767		long startTime = System.nanoTime();
3768		f.complete(v1);
3769	<	f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS);
3770	<	g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS);
3769	>	assertSame(f, f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3770	>	assertSame(g, g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3771		g.complete(v1);
3772		checkCompletedNormally(f, v1);
3773		checkCompletedNormally(g, v1);
#	Line 3613 | Line 3818 | public class CompletableFutureTest exten
3818		//--- tests of implementation details; not part of official tck ---
3819
3820		Object resultOf(CompletableFuture<?> f) {
3821	+	SecurityManager sm = System.getSecurityManager();
3822	+	if (sm != null) {
3823	+	try {
3824	+	System.setSecurityManager(null);
3825	+	} catch (SecurityException giveUp) {
3826	+	return "Reflection not available";
3827	+	}
3828	+	}
3829	+
3830		try {
3831		java.lang.reflect.Field resultField
3832		= CompletableFuture.class.getDeclaredField("result");
3833		resultField.setAccessible(true);
3834		return resultField.get(f);
3835	<	} catch (Throwable t) { throw new AssertionError(t); }
3835	>	} catch (Throwable t) {
3836	>	throw new AssertionError(t);
3837	>	} finally {
3838	>	if (sm != null) System.setSecurityManager(sm);
3839	>	}
3840		}
3841
3842		public void testExceptionPropagationReusesResultObject() {
#	Line 3641 | Line 3859 | public class CompletableFutureTest exten
3859		funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
3860
3861		funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
3862	+	funs.add((y) -> m.runAfterBoth(v42, y, new Noop(m)));
3863		funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3864	+	funs.add((y) -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
3865		funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
3866	+	funs.add((y) -> m.thenCombine(v42, y, new SubtractFunction(m)));
3867
3868	<	funs.add((y) -> m.whenComplete(y, (Integer x, Throwable t) -> {}));
3868	>	funs.add((y) -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
3869
3870		funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
3871
3872	+	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y}));
3873		funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
3874	+	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {v42, y}));
3875	+	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y}));
3876		funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
3877	+	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {incomplete, y}));
3878
3879		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3880		fun : funs) {
#	Line 3764 | Line 3989 | public class CompletableFutureTest exten
3989		}
3990
3991		static class Monad {
3992	<	static class MonadError extends Error {
3993	<	public MonadError() { super("monadic zero"); }
3992	>	static class ZeroException extends RuntimeException {
3993	>	public ZeroException() { super("monadic zero"); }
3994		}
3995		// "return", "unit"
3996		static <T> CompletableFuture<T> unit(T value) {
3997		return completedFuture(value);
3998		}
3999		// monadic zero ?
4000	<	static <T> CompletableFuture<T> zero(T value) {
4001	<	return failedFuture(new MonadError());
4000	>	static <T> CompletableFuture<T> zero() {
4001	>	return failedFuture(new ZeroException());
4002		}
4003		// >=>
4004		static <T,U,V> Function<T, CompletableFuture<V>> compose
#	Line 3787 | Line 4012 | public class CompletableFutureTest exten
4012		f.getNow(null);
4013		throw new AssertionFailedError("should throw");
4014		} catch (CompletionException success) {
4015	<	assertTrue(success.getCause() instanceof MonadError);
4015	>	assertTrue(success.getCause() instanceof ZeroException);
4016		}
4017		}
4018
#	Line 3814 | Line 4039 | public class CompletableFutureTest exten
4039		AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4040		}
4041
4042	<	// Monadic "plus"
4042	>	/** Implements "monadic plus". */
4043		static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
4044		CompletableFuture<? extends T> g) {
4045		PlusFuture<T> plus = new PlusFuture<T>();
4046	<	BiConsumer<T, Throwable> action = (T result, Throwable fail) -> {
4047	<	if (result != null) {
4048	<	if (plus.complete(result))
4049	<	if (plus.firstFailure.get() != null)
4046	>	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
4047	>	try {
4048	>	if (ex == null) {
4049	>	if (plus.complete(result))
4050	>	if (plus.firstFailure.get() != null)
4051	>	plus.firstFailure.set(null);
4052	>	}
4053	>	else if (plus.firstFailure.compareAndSet(null, ex)) {
4054	>	if (plus.isDone())
4055		plus.firstFailure.set(null);
4056	<	}
4057	<	else if (plus.firstFailure.compareAndSet(null, fail)) {
4058	<	if (plus.isDone())
4059	<	plus.firstFailure.set(null);
4060	<	} else {
4061	<	if (plus.completeExceptionally(fail))
4062	<	plus.firstFailure.set(null);
4056	>	}
4057	>	else {
4058	>	// first failure has precedence
4059	>	Throwable first = plus.firstFailure.getAndSet(null);
4060	>
4061	>	// may fail with "Self-suppression not permitted"
4062	>	try { first.addSuppressed(ex); }
4063	>	catch (Exception ignored) {}
4064	>
4065	>	plus.completeExceptionally(first);
4066	>	}
4067	>	} catch (Throwable unexpected) {
4068	>	plus.completeExceptionally(unexpected);
4069		}
4070		};
4071		f.whenComplete(action);
#	Line 3843 | Line 4079 | public class CompletableFutureTest exten
4079		* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
4080		*/
4081		public void testAdditiveMonad() throws Throwable {
4082	+	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
4083	+	CompletableFuture<Long> zero = Monad.zero();
4084	+
4085		// Some mutually non-commutative functions
4086		Function<Long, CompletableFuture<Long>> triple
4087	<	= (x) -> completedFuture(3 * x);
4087	>	= (x) -> Monad.unit(3 * x);
4088		Function<Long, CompletableFuture<Long>> inc
4089	<	= (x) -> completedFuture(x + 1);
3851	<
3852	<	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
3853	<	Function<Long, CompletableFuture<Long>> zero = Monad::zero;
4089	>	= (x) -> Monad.unit(x + 1);
4090
4091		// unit is a right identity: m >>= unit === m
4092	<	Monad.assertFutureEquals(
4093	<	inc.apply(5L).thenCompose(unit),
3858	<	inc.apply(5L));
4092	>	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
4093	>	inc.apply(5L));
4094		// unit is a left identity: (unit x) >>= f === f x
4095	<	Monad.assertFutureEquals(
4096	<	unit.apply(5L).thenCompose(inc),
4097	<	inc.apply(5L));
4095	>	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
4096	>	inc.apply(5L));
4097	>
4098		// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4099		Monad.assertFutureEquals(
4100		unit.apply(5L).thenCompose(inc).thenCompose(triple),
4101		unit.apply(5L).thenCompose((x) -> inc.apply(x).thenCompose(triple)));
4102
4103	+	// The case for CompletableFuture as an additive monad is weaker...
4104	+
4105		// zero is a monadic zero
4106	<	Monad.assertZero(zero.apply(5L));
3870	<	// left zero: zero >>= f === zero
3871	<	Monad.assertZero(zero.apply(5L).thenCompose(inc));
3872	<	// right zero: f >>= zero === zero
3873	<	Monad.assertZero(inc.apply(5L).thenCompose(zero));
4106	>	Monad.assertZero(zero);
4107
4108	<	// inc plus zero === inc
4109	<	Monad.assertFutureEquals(
4110	<	inc.apply(5L),
4111	<	Monad.plus(inc.apply(5L), zero.apply(5L)));
4112	<	// zero plus inc === inc
4113	<	Monad.assertFutureEquals(
4114	<	inc.apply(5L),
4115	<	Monad.plus(zero.apply(5L), inc.apply(5L)));
4108	>	// left zero: zero >>= f === zero
4109	>	Monad.assertZero(zero.thenCompose(inc));
4110	>	// right zero: f >>= (\x -> zero) === zero
4111	>	Monad.assertZero(inc.apply(5L).thenCompose((x) -> zero));
4112	>
4113	>	// f plus zero === f
4114	>	Monad.assertFutureEquals(Monad.unit(5L),
4115	>	Monad.plus(Monad.unit(5L), zero));
4116	>	// zero plus f === f
4117	>	Monad.assertFutureEquals(Monad.unit(5L),
4118	>	Monad.plus(zero, Monad.unit(5L)));
4119		// zero plus zero === zero
4120	<	Monad.assertZero(Monad.plus(zero.apply(5L), zero.apply(5L)));
4120	>	Monad.assertZero(Monad.plus(zero, zero));
4121		{
4122	<	CompletableFuture<Long> f = Monad.plus(inc.apply(5L), inc.apply(8L));
4123	<	assertTrue(f.get() == 6L || f.get() == 9L);
4122	>	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
4123	>	Monad.unit(8L));
4124	>	// non-determinism
4125	>	assertTrue(f.get() == 5L || f.get() == 8L);
4126		}
4127
4128		CompletableFuture<Long> godot = new CompletableFuture<>();
4129	<	// inc plus godot === inc (doesn't wait for godot)
4130	<	Monad.assertFutureEquals(
4131	<	inc.apply(5L),
4132	<	Monad.plus(inc.apply(5L), godot));
4133	<	// godot plus inc === inc (doesn't wait for godot)
4134	<	Monad.assertFutureEquals(
4135	<	inc.apply(5L),
4136	<	Monad.plus(godot, inc.apply(5L)));
4129	>	// f plus godot === f (doesn't wait for godot)
4130	>	Monad.assertFutureEquals(Monad.unit(5L),
4131	>	Monad.plus(Monad.unit(5L), godot));
4132	>	// godot plus f === f (doesn't wait for godot)
4133	>	Monad.assertFutureEquals(Monad.unit(5L),
4134	>	Monad.plus(godot, Monad.unit(5L)));
4135	>	}
4136	>
4137	>	/**
4138	>	* A single CompletableFuture with many dependents.
4139	>	* A demo of scalability - runtime is O(n).
4140	>	*/
4141	>	public void testManyDependents() throws Throwable {
4142	>	final int n = expensiveTests ? 1_000_000 : 10;
4143	>	final CompletableFuture<Void> head = new CompletableFuture<>();
4144	>	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4145	>	final AtomicInteger count = new AtomicInteger(0);
4146	>	for (int i = 0; i < n; i++) {
4147	>	head.thenRun(() -> count.getAndIncrement());
4148	>	head.thenAccept((x) -> count.getAndIncrement());
4149	>	head.thenApply((x) -> count.getAndIncrement());
4150	>
4151	>	head.runAfterBoth(complete, () -> count.getAndIncrement());
4152	>	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
4153	>	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
4154	>	complete.runAfterBoth(head, () -> count.getAndIncrement());
4155	>	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
4156	>	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4157	>
4158	>	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4159	>	head.acceptEither(new CompletableFuture<Void>(), (x) -> count.getAndIncrement());
4160	>	head.applyToEither(new CompletableFuture<Void>(), (x) -> count.getAndIncrement());
4161	>	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4162	>	new CompletableFuture<Void>().acceptEither(head, (x) -> count.getAndIncrement());
4163	>	new CompletableFuture<Void>().applyToEither(head, (x) -> count.getAndIncrement());
4164	>	}
4165	>	head.complete(null);
4166	>	assertEquals(5 * 3 * n, count.get());
4167	>	}
4168	>
4169	>	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4170	>	public void testCoCompletionGarbageRetention() throws Throwable {
4171	>	final int n = expensiveTests ? 1_000_000 : 10;
4172	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4173	>	CompletableFuture<Integer> f;
4174	>	for (int i = 0; i < n; i++) {
4175	>	f = new CompletableFuture<>();
4176	>	f.runAfterEither(incomplete, () -> {});
4177	>	f.complete(null);
4178	>
4179	>	f = new CompletableFuture<>();
4180	>	f.acceptEither(incomplete, (x) -> {});
4181	>	f.complete(null);
4182	>
4183	>	f = new CompletableFuture<>();
4184	>	f.applyToEither(incomplete, (x) -> x);
4185	>	f.complete(null);
4186	>
4187	>	f = new CompletableFuture<>();
4188	>	CompletableFuture.anyOf(new CompletableFuture<?>[] { f, incomplete });
4189	>	f.complete(null);
4190	>	}
4191	>
4192	>	for (int i = 0; i < n; i++) {
4193	>	f = new CompletableFuture<>();
4194	>	incomplete.runAfterEither(f, () -> {});
4195	>	f.complete(null);
4196	>
4197	>	f = new CompletableFuture<>();
4198	>	incomplete.acceptEither(f, (x) -> {});
4199	>	f.complete(null);
4200	>
4201	>	f = new CompletableFuture<>();
4202	>	incomplete.applyToEither(f, (x) -> x);
4203	>	f.complete(null);
4204	>
4205	>	f = new CompletableFuture<>();
4206	>	CompletableFuture.anyOf(new CompletableFuture<?>[] { incomplete, f });
4207	>	f.complete(null);
4208	>	}
4209	>	}
4210	>
4211	>	/*
4212	>	* Tests below currently fail in stress mode due to memory retention.
4213	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck
4214	>	*/
4215	>
4216	>	/** Checks for garbage retention with anyOf. */
4217	>	public void testAnyOfGarbageRetention() throws Throwable {
4218	>	for (Integer v : new Integer[] { 1, null })
4219	>	{
4220	>	final int n = expensiveTests ? 100_000 : 10;
4221	>	CompletableFuture<Integer>[] fs
4222	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4223	>	for (int i = 0; i < fs.length; i++)
4224	>	fs[i] = new CompletableFuture<>();
4225	>	fs[fs.length - 1].complete(v);
4226	>	for (int i = 0; i < n; i++)
4227	>	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4228	>	}}
4229	>
4230	>	/** Checks for garbage retention with allOf. */
4231	>	public void testCancelledAllOfGarbageRetention() throws Throwable {
4232	>	final int n = expensiveTests ? 100_000 : 10;
4233	>	CompletableFuture<Integer>[] fs
4234	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4235	>	for (int i = 0; i < fs.length; i++)
4236	>	fs[i] = new CompletableFuture<>();
4237	>	for (int i = 0; i < n; i++)
4238	>	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4239		}
4240
4241		//     static <U> U join(CompletionStage<U> stage) {

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