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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.154 by jsr166, Sun Jun 26 19:27:42 2016 UTC vs.
Revision 1.216 by jsr166, Wed Nov 21 23:25:17 2018 UTC

#	Line 32 | Line 32 | 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;
35		import java.util.concurrent.atomic.AtomicInteger;
36		import java.util.concurrent.atomic.AtomicReference;
37		import java.util.function.BiConsumer;
#	Line 42 | Line 41 | import java.util.function.Function;
41		import java.util.function.Predicate;
42		import java.util.function.Supplier;
43
45	–	import junit.framework.AssertionFailedError;
44		import junit.framework.Test;
45		import junit.framework.TestSuite;
46
#	Line 60 | Line 58 | public class CompletableFutureTest exten
58		void checkIncomplete(CompletableFuture<?> f) {
59		assertFalse(f.isDone());
60		assertFalse(f.isCancelled());
61	<	assertTrue(f.toString().contains("Not completed"));
61	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
62	>
63	>	Object result = null;
64		try {
65	<	assertNull(f.getNow(null));
65	>	result = f.getNow(null);
66		} catch (Throwable fail) { threadUnexpectedException(fail); }
67	+	assertNull(result);
68	+
69		try {
70	<	f.get(0L, SECONDS);
70	>	f.get(randomExpiredTimeout(), randomTimeUnit());
71		shouldThrow();
72		}
73		catch (TimeoutException success) {}
74		catch (Throwable fail) { threadUnexpectedException(fail); }
75		}
76
77	<	<T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
78	<	checkTimedGet(f, value);
77	>	<T> void checkCompletedNormally(CompletableFuture<T> f, T expectedValue) {
78	>	checkTimedGet(f, expectedValue);
79
80	+	assertEquals(expectedValue, f.join());
81	+	assertEquals(expectedValue, f.getNow(null));
82	+
83	+	T result = null;
84		try {
85	<	assertEquals(value, f.join());
80	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
81	<	try {
82	<	assertEquals(value, f.getNow(null));
83	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
84	<	try {
85	<	assertEquals(value, f.get());
85	>	result = f.get();
86		} catch (Throwable fail) { threadUnexpectedException(fail); }
87	+	assertEquals(expectedValue, result);
88	+
89		assertTrue(f.isDone());
90		assertFalse(f.isCancelled());
91		assertFalse(f.isCompletedExceptionally());
92	<	assertTrue(f.toString().contains("[Completed normally]"));
92	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
93		}
94
95		/**
96		* Returns the "raw" internal exceptional completion of f,
97		* without any additional wrapping with CompletionException.
98		*/
99	<	<U> Throwable exceptionalCompletion(CompletableFuture<U> f) {
100	<	// handle (and whenComplete) can distinguish between "direct"
101	<	// and "wrapped" exceptional completion
102	<	return f.handle((U u, Throwable t) -> t).join();
99	>	Throwable exceptionalCompletion(CompletableFuture<?> f) {
100	>	// handle (and whenComplete and exceptionally) can distinguish
101	>	// between "direct" and "wrapped" exceptional completion
102	>	return f.handle((u, t) -> t).join();
103		}
104
105		void checkCompletedExceptionally(CompletableFuture<?> f,
#	Line 143 | Line 145 | public class CompletableFutureTest exten
145		assertFalse(f.isCancelled());
146		assertTrue(f.isDone());
147		assertTrue(f.isCompletedExceptionally());
148	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
148	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
149		}
150
151		void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
152		checkCompletedExceptionally(f, true,
153	<	(t) -> assertTrue(t instanceof CFException));
153	>	t -> assertTrue(t instanceof CFException));
154		}
155
156		void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
157		checkCompletedExceptionally(f, true,
158	<	(t) -> assertTrue(t instanceof CancellationException));
158	>	t -> assertTrue(t instanceof CancellationException));
159		}
160
161		void checkCompletedWithTimeoutException(CompletableFuture<?> f) {
162		checkCompletedExceptionally(f, false,
163	<	(t) -> assertTrue(t instanceof TimeoutException));
163	>	t -> assertTrue(t instanceof TimeoutException));
164		}
165
166		void checkCompletedWithWrappedException(CompletableFuture<?> f,
167		Throwable ex) {
168	<	checkCompletedExceptionally(f, true, (t) -> assertSame(t, ex));
168	>	checkCompletedExceptionally(f, true, t -> assertSame(t, ex));
169		}
170
171		void checkCompletedExceptionally(CompletableFuture<?> f, Throwable ex) {
172	<	checkCompletedExceptionally(f, false, (t) -> assertSame(t, ex));
172	>	checkCompletedExceptionally(f, false, t -> assertSame(t, ex));
173		}
174
175		void checkCancelled(CompletableFuture<?> f) {
#	Line 198 | Line 200 | public class CompletableFutureTest exten
200		assertTrue(f.isDone());
201		assertTrue(f.isCompletedExceptionally());
202		assertTrue(f.isCancelled());
203	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
203	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
204		}
205
206		/**
#	Line 297 | Line 299 | public class CompletableFutureTest exten
299		}
300
301		f = new CompletableFuture<>();
302	<	f.completeExceptionally(ex = new CFException());
302	>	f.completeExceptionally(new CFException());
303		f.obtrudeValue(v1);
304		checkCompletedNormally(f, v1);
305		f.obtrudeException(ex = new CFException());
#	Line 334 | Line 336 | public class CompletableFutureTest exten
336		/**
337		* toString indicates current completion state
338		*/
339	<	public void testToString() {
340	<	CompletableFuture<String> f;
341	<
342	<	f = new CompletableFuture<String>();
343	<	assertTrue(f.toString().contains("[Not completed]"));
339	>	public void testToString_incomplete() {
340	>	CompletableFuture<String> f = new CompletableFuture<>();
341	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
342	>	if (testImplementationDetails)
343	>	assertEquals(identityString(f) + "[Not completed]",
344	>	f.toString());
345	>	}
346
347	+	public void testToString_normal() {
348	+	CompletableFuture<String> f = new CompletableFuture<>();
349		assertTrue(f.complete("foo"));
350	<	assertTrue(f.toString().contains("[Completed normally]"));
350	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
351	>	if (testImplementationDetails)
352	>	assertEquals(identityString(f) + "[Completed normally]",
353	>	f.toString());
354	>	}
355
356	<	f = new CompletableFuture<String>();
356	>	public void testToString_exception() {
357	>	CompletableFuture<String> f = new CompletableFuture<>();
358		assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
359	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
359	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
360	>	if (testImplementationDetails)
361	>	assertTrue(f.toString().startsWith(
362	>	identityString(f) + "[Completed exceptionally: "));
363	>	}
364
365	+	public void testToString_cancelled() {
366		for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
367	<	f = new CompletableFuture<String>();
367	>	CompletableFuture<String> f = new CompletableFuture<>();
368		assertTrue(f.cancel(mayInterruptIfRunning));
369	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
369	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
370	>	if (testImplementationDetails)
371	>	assertTrue(f.toString().startsWith(
372	>	identityString(f) + "[Completed exceptionally: "));
373		}
374		}
375
#	Line 362 | Line 381 | public class CompletableFutureTest exten
381		checkCompletedNormally(f, "test");
382		}
383
384	<	abstract class CheckedAction {
384	>	abstract static class CheckedAction {
385		int invocationCount = 0;
386		final ExecutionMode m;
387		CheckedAction(ExecutionMode m) { this.m = m; }
#	Line 374 | Line 393 | public class CompletableFutureTest exten
393		void assertInvoked() { assertEquals(1, invocationCount); }
394		}
395
396	<	abstract class CheckedIntegerAction extends CheckedAction {
396	>	abstract static class CheckedIntegerAction extends CheckedAction {
397		Integer value;
398		CheckedIntegerAction(ExecutionMode m) { super(m); }
399		void assertValue(Integer expected) {
#	Line 383 | Line 402 | public class CompletableFutureTest exten
402		}
403		}
404
405	<	class IntegerSupplier extends CheckedAction
405	>	static class IntegerSupplier extends CheckedAction
406		implements Supplier<Integer>
407		{
408		final Integer value;
#	Line 402 | Line 421 | public class CompletableFutureTest exten
421		return (x == null) ? null : x + 1;
422		}
423
424	<	class NoopConsumer extends CheckedIntegerAction
424	>	static class NoopConsumer extends CheckedIntegerAction
425		implements Consumer<Integer>
426		{
427		NoopConsumer(ExecutionMode m) { super(m); }
#	Line 412 | Line 431 | public class CompletableFutureTest exten
431		}
432		}
433
434	<	class IncFunction extends CheckedIntegerAction
434	>	static class IncFunction extends CheckedIntegerAction
435		implements Function<Integer,Integer>
436		{
437		IncFunction(ExecutionMode m) { super(m); }
#	Line 430 | Line 449 | public class CompletableFutureTest exten
449		- ((y == null) ? 99 : y.intValue());
450		}
451
452	<	class SubtractAction extends CheckedIntegerAction
452	>	static class SubtractAction extends CheckedIntegerAction
453		implements BiConsumer<Integer, Integer>
454		{
455		SubtractAction(ExecutionMode m) { super(m); }
#	Line 440 | Line 459 | public class CompletableFutureTest exten
459		}
460		}
461
462	<	class SubtractFunction extends CheckedIntegerAction
462	>	static class SubtractFunction extends CheckedIntegerAction
463		implements BiFunction<Integer, Integer, Integer>
464		{
465		SubtractFunction(ExecutionMode m) { super(m); }
#	Line 450 | Line 469 | public class CompletableFutureTest exten
469		}
470		}
471
472	<	class Noop extends CheckedAction implements Runnable {
472	>	static class Noop extends CheckedAction implements Runnable {
473		Noop(ExecutionMode m) { super(m); }
474		public void run() {
475		invoked();
476		}
477		}
478
479	<	class FailingSupplier extends CheckedAction
479	>	static class FailingSupplier extends CheckedAction
480		implements Supplier<Integer>
481		{
482		final CFException ex;
#	Line 468 | Line 487 | public class CompletableFutureTest exten
487		}
488		}
489
490	<	class FailingConsumer extends CheckedIntegerAction
490	>	static class FailingConsumer extends CheckedIntegerAction
491		implements Consumer<Integer>
492		{
493		final CFException ex;
#	Line 480 | Line 499 | public class CompletableFutureTest exten
499		}
500		}
501
502	<	class FailingBiConsumer extends CheckedIntegerAction
502	>	static class FailingBiConsumer extends CheckedIntegerAction
503		implements BiConsumer<Integer, Integer>
504		{
505		final CFException ex;
#	Line 492 | Line 511 | public class CompletableFutureTest exten
511		}
512		}
513
514	<	class FailingFunction extends CheckedIntegerAction
514	>	static class FailingFunction extends CheckedIntegerAction
515		implements Function<Integer, Integer>
516		{
517		final CFException ex;
#	Line 504 | Line 523 | public class CompletableFutureTest exten
523		}
524		}
525
526	<	class FailingBiFunction extends CheckedIntegerAction
526	>	static class FailingBiFunction extends CheckedIntegerAction
527		implements BiFunction<Integer, Integer, Integer>
528		{
529		final CFException ex;
#	Line 516 | Line 535 | public class CompletableFutureTest exten
535		}
536		}
537
538	<	class FailingRunnable extends CheckedAction implements Runnable {
538	>	static class FailingRunnable extends CheckedAction implements Runnable {
539		final CFException ex;
540		FailingRunnable(ExecutionMode m) { super(m); ex = new CFException(); }
541		public void run() {
#	Line 525 | Line 544 | public class CompletableFutureTest exten
544		}
545		}
546
547	<	class CompletableFutureInc extends CheckedIntegerAction
547	>	static class CompletableFutureInc extends CheckedIntegerAction
548		implements Function<Integer, CompletableFuture<Integer>>
549		{
550		CompletableFutureInc(ExecutionMode m) { super(m); }
551		public CompletableFuture<Integer> apply(Integer x) {
552		invoked();
553		value = x;
554	<	CompletableFuture<Integer> f = new CompletableFuture<>();
555	<	assertTrue(f.complete(inc(x)));
556	<	return f;
554	>	return CompletableFuture.completedFuture(inc(x));
555	>	}
556	>	}
557	>
558	>	static class FailingExceptionalCompletableFutureFunction extends CheckedAction
559	>	implements Function<Throwable, CompletableFuture<Integer>>
560	>	{
561	>	final CFException ex;
562	>	FailingExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
563	>	public CompletableFuture<Integer> apply(Throwable x) {
564	>	invoked();
565	>	throw ex;
566	>	}
567	>	}
568	>
569	>	static class ExceptionalCompletableFutureFunction extends CheckedAction
570	>	implements Function<Throwable, CompletionStage<Integer>> {
571	>	final Integer value = 3;
572	>	ExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); }
573	>	public CompletionStage<Integer> apply(Throwable x) {
574	>	invoked();
575	>	return CompletableFuture.completedFuture(value);
576		}
577		}
578
579	<	class FailingCompletableFutureFunction extends CheckedIntegerAction
579	>	static class FailingCompletableFutureFunction extends CheckedIntegerAction
580		implements Function<Integer, CompletableFuture<Integer>>
581		{
582		final CFException ex;
#	Line 550 | Line 588 | public class CompletableFutureTest exten
588		}
589		}
590
591	+	static class CountingRejectingExecutor implements Executor {
592	+	final RejectedExecutionException ex = new RejectedExecutionException();
593	+	final AtomicInteger count = new AtomicInteger(0);
594	+	public void execute(Runnable r) {
595	+	count.getAndIncrement();
596	+	throw ex;
597	+	}
598	+	}
599	+
600		// Used for explicit executor tests
601		static final class ThreadExecutor implements Executor {
602		final AtomicInteger count = new AtomicInteger(0);
#	Line 644 | Line 691 | public class CompletableFutureTest exten
691		Function<? super T,U> a) {
692		return f.applyToEither(g, a);
693		}
694	+	public <T> CompletableFuture<T> exceptionally
695	+	(CompletableFuture<T> f,
696	+	Function<Throwable, ? extends T> fn) {
697	+	return f.exceptionally(fn);
698	+	}
699	+	public <T> CompletableFuture<T> exceptionallyCompose
700	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
701	+	return f.exceptionallyCompose(fn);
702	+	}
703		},
648	–
704		ASYNC {
705		public void checkExecutionMode() {
706		assertEquals(defaultExecutorIsCommonPool,
#	Line 718 | Line 773 | public class CompletableFutureTest exten
773		Function<? super T,U> a) {
774		return f.applyToEitherAsync(g, a);
775		}
776	+	public <T> CompletableFuture<T> exceptionally
777	+	(CompletableFuture<T> f,
778	+	Function<Throwable, ? extends T> fn) {
779	+	return f.exceptionallyAsync(fn);
780	+	}
781	+
782	+	public <T> CompletableFuture<T> exceptionallyCompose
783	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
784	+	return f.exceptionallyComposeAsync(fn);
785	+	}
786	+
787		},
788
789		EXECUTOR {
#	Line 791 | Line 857 | public class CompletableFutureTest exten
857		Function<? super T,U> a) {
858		return f.applyToEitherAsync(g, a, new ThreadExecutor());
859		}
860	+	public <T> CompletableFuture<T> exceptionally
861	+	(CompletableFuture<T> f,
862	+	Function<Throwable, ? extends T> fn) {
863	+	return f.exceptionallyAsync(fn, new ThreadExecutor());
864	+	}
865	+	public <T> CompletableFuture<T> exceptionallyCompose
866	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
867	+	return f.exceptionallyComposeAsync(fn, new ThreadExecutor());
868	+	}
869	+
870		};
871
872		public abstract void checkExecutionMode();
#	Line 833 | Line 909 | public class CompletableFutureTest exten
909		(CompletableFuture<T> f,
910		CompletionStage<? extends T> g,
911		Function<? super T,U> a);
912	+	public abstract <T> CompletableFuture<T> exceptionally
913	+	(CompletableFuture<T> f,
914	+	Function<Throwable, ? extends T> fn);
915	+	public abstract <T> CompletableFuture<T> exceptionallyCompose
916	+	(CompletableFuture<T> f,
917	+	Function<Throwable, ? extends CompletionStage<T>> fn);
918		}
919
920		/**
#	Line 840 | Line 922 | public class CompletableFutureTest exten
922		* normally, and source result is propagated
923		*/
924		public void testExceptionally_normalCompletion() {
925	+	for (ExecutionMode m : ExecutionMode.values())
926		for (boolean createIncomplete : new boolean[] { true, false })
927		for (Integer v1 : new Integer[] { 1, null })
928		{
846	–	final AtomicInteger a = new AtomicInteger(0);
929		final CompletableFuture<Integer> f = new CompletableFuture<>();
930		if (!createIncomplete) assertTrue(f.complete(v1));
931	<	final CompletableFuture<Integer> g = f.exceptionally
932	<	((Throwable t) -> {
851	<	a.getAndIncrement();
931	>	final CompletableFuture<Integer> g = m.exceptionally
932	>	(f, (Throwable t) -> {
933		threadFail("should not be called");
934		return null;            // unreached
935		});
#	Line 856 | Line 937 | public class CompletableFutureTest exten
937
938		checkCompletedNormally(g, v1);
939		checkCompletedNormally(f, v1);
859	–	assertEquals(0, a.get());
940		}}
941
942		/**
#	Line 864 | Line 944 | public class CompletableFutureTest exten
944		* exception
945		*/
946		public void testExceptionally_exceptionalCompletion() {
947	+	for (ExecutionMode m : ExecutionMode.values())
948		for (boolean createIncomplete : new boolean[] { true, false })
949		for (Integer v1 : new Integer[] { 1, null })
950		{
#	Line 871 | Line 952 | public class CompletableFutureTest exten
952		final CFException ex = new CFException();
953		final CompletableFuture<Integer> f = new CompletableFuture<>();
954		if (!createIncomplete) f.completeExceptionally(ex);
955	<	final CompletableFuture<Integer> g = f.exceptionally
956	<	((Throwable t) -> {
957	<	ExecutionMode.SYNC.checkExecutionMode();
955	>	final CompletableFuture<Integer> g = m.exceptionally
956	>	(f, (Throwable t) -> {
957	>	m.checkExecutionMode();
958		threadAssertSame(t, ex);
959		a.getAndIncrement();
960		return v1;
#	Line 889 | Line 970 | public class CompletableFutureTest exten
970		* exceptionally with that exception
971		*/
972		public void testExceptionally_exceptionalCompletionActionFailed() {
973	+	for (ExecutionMode m : ExecutionMode.values())
974		for (boolean createIncomplete : new boolean[] { true, false })
975		{
976		final AtomicInteger a = new AtomicInteger(0);
#	Line 896 | Line 978 | public class CompletableFutureTest exten
978		final CFException ex2 = new CFException();
979		final CompletableFuture<Integer> f = new CompletableFuture<>();
980		if (!createIncomplete) f.completeExceptionally(ex1);
981	<	final CompletableFuture<Integer> g = f.exceptionally
982	<	((Throwable t) -> {
983	<	ExecutionMode.SYNC.checkExecutionMode();
981	>	final CompletableFuture<Integer> g = m.exceptionally
982	>	(f, (Throwable t) -> {
983	>	m.checkExecutionMode();
984		threadAssertSame(t, ex1);
985		a.getAndIncrement();
986		throw ex2;
#	Line 1234 | Line 1316 | public class CompletableFutureTest exten
1316		r.assertInvoked();
1317		}}
1318
1319	+	@SuppressWarnings("FutureReturnValueIgnored")
1320	+	public void testRunAsync_rejectingExecutor() {
1321	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1322	+	try {
1323	+	CompletableFuture.runAsync(() -> {}, e);
1324	+	shouldThrow();
1325	+	} catch (Throwable t) {
1326	+	assertSame(e.ex, t);
1327	+	}
1328	+
1329	+	assertEquals(1, e.count.get());
1330	+	}
1331	+
1332		/**
1333		* supplyAsync completes with result of supplier
1334		*/
#	Line 1268 | Line 1363 | public class CompletableFutureTest exten
1363		r.assertInvoked();
1364		}}
1365
1366	+	@SuppressWarnings("FutureReturnValueIgnored")
1367	+	public void testSupplyAsync_rejectingExecutor() {
1368	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1369	+	try {
1370	+	CompletableFuture.supplyAsync(() -> null, e);
1371	+	shouldThrow();
1372	+	} catch (Throwable t) {
1373	+	assertSame(e.ex, t);
1374	+	}
1375	+
1376	+	assertEquals(1, e.count.get());
1377	+	}
1378	+
1379		// seq completion methods
1380
1381		/**
#	Line 2530 | Line 2638 | public class CompletableFutureTest exten
2638
2639		// unspecified behavior - both source completions available
2640		try {
2641	<	assertEquals(null, h0.join());
2641	>	assertNull(h0.join());
2642		rs[0].assertValue(v1);
2643		} catch (CompletionException ok) {
2644		checkCompletedWithWrappedException(h0, ex);
2645		rs[0].assertNotInvoked();
2646		}
2647		try {
2648	<	assertEquals(null, h1.join());
2648	>	assertNull(h1.join());
2649		rs[1].assertValue(v1);
2650		} catch (CompletionException ok) {
2651		checkCompletedWithWrappedException(h1, ex);
2652		rs[1].assertNotInvoked();
2653		}
2654		try {
2655	<	assertEquals(null, h2.join());
2655	>	assertNull(h2.join());
2656		rs[2].assertValue(v1);
2657		} catch (CompletionException ok) {
2658		checkCompletedWithWrappedException(h2, ex);
2659		rs[2].assertNotInvoked();
2660		}
2661		try {
2662	<	assertEquals(null, h3.join());
2662	>	assertNull(h3.join());
2663		rs[3].assertValue(v1);
2664		} catch (CompletionException ok) {
2665		checkCompletedWithWrappedException(h3, ex);
#	Line 2667 | Line 2775 | public class CompletableFutureTest exten
2775		for (ExecutionMode m : ExecutionMode.values())
2776		for (Integer v1 : new Integer[] { 1, null })
2777		for (Integer v2 : new Integer[] { 2, null })
2778	+	for (boolean pushNop : new boolean[] { true, false })
2779		{
2780		final CompletableFuture<Integer> f = new CompletableFuture<>();
2781		final CompletableFuture<Integer> g = new CompletableFuture<>();
#	Line 2679 | Line 2788 | public class CompletableFutureTest exten
2788		checkIncomplete(h1);
2789		rs[0].assertNotInvoked();
2790		rs[1].assertNotInvoked();
2791	+	if (pushNop) {          // ad hoc test of intra-completion interference
2792	+	m.thenRun(f, () -> {});
2793	+	m.thenRun(g, () -> {});
2794	+	}
2795		f.complete(v1);
2796		checkCompletedNormally(h0, null);
2797		checkCompletedNormally(h1, null);
#	Line 2785 | Line 2898 | public class CompletableFutureTest exten
2898
2899		// unspecified behavior - both source completions available
2900		try {
2901	<	assertEquals(null, h0.join());
2901	>	assertNull(h0.join());
2902		rs[0].assertInvoked();
2903		} catch (CompletionException ok) {
2904		checkCompletedWithWrappedException(h0, ex);
2905		rs[0].assertNotInvoked();
2906		}
2907		try {
2908	<	assertEquals(null, h1.join());
2908	>	assertNull(h1.join());
2909		rs[1].assertInvoked();
2910		} catch (CompletionException ok) {
2911		checkCompletedWithWrappedException(h1, ex);
2912		rs[1].assertNotInvoked();
2913		}
2914		try {
2915	<	assertEquals(null, h2.join());
2915	>	assertNull(h2.join());
2916		rs[2].assertInvoked();
2917		} catch (CompletionException ok) {
2918		checkCompletedWithWrappedException(h2, ex);
2919		rs[2].assertNotInvoked();
2920		}
2921		try {
2922	<	assertEquals(null, h3.join());
2922	>	assertNull(h3.join());
2923		rs[3].assertInvoked();
2924		} catch (CompletionException ok) {
2925		checkCompletedWithWrappedException(h3, ex);
#	Line 3003 | Line 3116 | public class CompletableFutureTest exten
3116		case 0:
3117		assertTrue(f.complete(v1));
3118		assertTrue(g.completeExceptionally(ex));
3119	<	h = m.thenCompose(f, (x -> g));
3119	>	h = m.thenCompose(f, x -> g);
3120		break;
3121		case 1:
3122		assertTrue(f.complete(v1));
3123	<	h = m.thenCompose(f, (x -> g));
3123	>	h = m.thenCompose(f, x -> g);
3124		assertTrue(g.completeExceptionally(ex));
3125		break;
3126		case 2:
3127		assertTrue(g.completeExceptionally(ex));
3128		assertTrue(f.complete(v1));
3129	<	h = m.thenCompose(f, (x -> g));
3129	>	h = m.thenCompose(f, x -> g);
3130		break;
3131		case 3:
3132		assertTrue(g.completeExceptionally(ex));
3133	<	h = m.thenCompose(f, (x -> g));
3133	>	h = m.thenCompose(f, x -> g);
3134		assertTrue(f.complete(v1));
3135		break;
3136		case 4:
3137	<	h = m.thenCompose(f, (x -> g));
3137	>	h = m.thenCompose(f, x -> g);
3138		assertTrue(f.complete(v1));
3139		assertTrue(g.completeExceptionally(ex));
3140		break;
3141		case 5:
3142	<	h = m.thenCompose(f, (x -> g));
3142	>	h = m.thenCompose(f, x -> g);
3143		assertTrue(f.complete(v1));
3144		assertTrue(g.completeExceptionally(ex));
3145		break;
#	Line 3038 | Line 3151 | public class CompletableFutureTest exten
3151		checkCompletedNormally(f, v1);
3152		}}
3153
3154	+	/**
3155	+	* exceptionallyCompose result completes normally after normal
3156	+	* completion of source
3157	+	*/
3158	+	public void testExceptionallyCompose_normalCompletion() {
3159	+	for (ExecutionMode m : ExecutionMode.values())
3160	+	for (boolean createIncomplete : new boolean[] { true, false })
3161	+	for (Integer v1 : new Integer[] { 1, null })
3162	+	{
3163	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3164	+	final ExceptionalCompletableFutureFunction r =
3165	+	new ExceptionalCompletableFutureFunction(m);
3166	+	if (!createIncomplete) assertTrue(f.complete(v1));
3167	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3168	+	if (createIncomplete) assertTrue(f.complete(v1));
3169	+
3170	+	checkCompletedNormally(f, v1);
3171	+	checkCompletedNormally(g, v1);
3172	+	r.assertNotInvoked();
3173	+	}}
3174	+
3175	+	/**
3176	+	* exceptionallyCompose result completes normally after exceptional
3177	+	* completion of source
3178	+	*/
3179	+	public void testExceptionallyCompose_exceptionalCompletion() {
3180	+	for (ExecutionMode m : ExecutionMode.values())
3181	+	for (boolean createIncomplete : new boolean[] { true, false })
3182	+	{
3183	+	final CFException ex = new CFException();
3184	+	final ExceptionalCompletableFutureFunction r =
3185	+	new ExceptionalCompletableFutureFunction(m);
3186	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3187	+	if (!createIncomplete) f.completeExceptionally(ex);
3188	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3189	+	if (createIncomplete) f.completeExceptionally(ex);
3190	+
3191	+	checkCompletedExceptionally(f, ex);
3192	+	checkCompletedNormally(g, r.value);
3193	+	r.assertInvoked();
3194	+	}}
3195	+
3196	+	/**
3197	+	* exceptionallyCompose completes exceptionally on exception if action does
3198	+	*/
3199	+	public void testExceptionallyCompose_actionFailed() {
3200	+	for (ExecutionMode m : ExecutionMode.values())
3201	+	for (boolean createIncomplete : new boolean[] { true, false })
3202	+	{
3203	+	final CFException ex = new CFException();
3204	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3205	+	final FailingExceptionalCompletableFutureFunction r
3206	+	= new FailingExceptionalCompletableFutureFunction(m);
3207	+	if (!createIncomplete) f.completeExceptionally(ex);
3208	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3209	+	if (createIncomplete) f.completeExceptionally(ex);
3210	+
3211	+	checkCompletedExceptionally(f, ex);
3212	+	checkCompletedWithWrappedException(g, r.ex);
3213	+	r.assertInvoked();
3214	+	}}
3215	+
3216	+	/**
3217	+	* exceptionallyCompose result completes exceptionally if the
3218	+	* result of the action does
3219	+	*/
3220	+	public void testExceptionallyCompose_actionReturnsFailingFuture() {
3221	+	for (ExecutionMode m : ExecutionMode.values())
3222	+	for (int order = 0; order < 6; order++)
3223	+	{
3224	+	final CFException ex0 = new CFException();
3225	+	final CFException ex = new CFException();
3226	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3227	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
3228	+	final CompletableFuture<Integer> h;
3229	+	// Test all permutations of orders
3230	+	switch (order) {
3231	+	case 0:
3232	+	assertTrue(f.completeExceptionally(ex0));
3233	+	assertTrue(g.completeExceptionally(ex));
3234	+	h = m.exceptionallyCompose(f, x -> g);
3235	+	break;
3236	+	case 1:
3237	+	assertTrue(f.completeExceptionally(ex0));
3238	+	h = m.exceptionallyCompose(f, x -> g);
3239	+	assertTrue(g.completeExceptionally(ex));
3240	+	break;
3241	+	case 2:
3242	+	assertTrue(g.completeExceptionally(ex));
3243	+	assertTrue(f.completeExceptionally(ex0));
3244	+	h = m.exceptionallyCompose(f, x -> g);
3245	+	break;
3246	+	case 3:
3247	+	assertTrue(g.completeExceptionally(ex));
3248	+	h = m.exceptionallyCompose(f, x -> g);
3249	+	assertTrue(f.completeExceptionally(ex0));
3250	+	break;
3251	+	case 4:
3252	+	h = m.exceptionallyCompose(f, x -> g);
3253	+	assertTrue(f.completeExceptionally(ex0));
3254	+	assertTrue(g.completeExceptionally(ex));
3255	+	break;
3256	+	case 5:
3257	+	h = m.exceptionallyCompose(f, x -> g);
3258	+	assertTrue(f.completeExceptionally(ex0));
3259	+	assertTrue(g.completeExceptionally(ex));
3260	+	break;
3261	+	default: throw new AssertionError();
3262	+	}
3263	+
3264	+	checkCompletedExceptionally(g, ex);
3265	+	checkCompletedWithWrappedException(h, ex);
3266	+	checkCompletedExceptionally(f, ex0);
3267	+	}}
3268	+
3269		// other static methods
3270
3271		/**
#	Line 3201 | Line 3429 | public class CompletableFutureTest exten
3429		/**
3430		* Completion methods throw NullPointerException with null arguments
3431		*/
3432	+	@SuppressWarnings("FutureReturnValueIgnored")
3433		public void testNPE() {
3434		CompletableFuture<Integer> f = new CompletableFuture<>();
3435		CompletableFuture<Integer> g = new CompletableFuture<>();
#	Line 3220 | Line 3449 | public class CompletableFutureTest exten
3449
3450		() -> f.thenApply(null),
3451		() -> f.thenApplyAsync(null),
3452	<	() -> f.thenApplyAsync((x) -> x, null),
3452	>	() -> f.thenApplyAsync(x -> x, null),
3453		() -> f.thenApplyAsync(null, exec),
3454
3455		() -> f.thenAccept(null),
3456		() -> f.thenAcceptAsync(null),
3457	<	() -> f.thenAcceptAsync((x) -> {} , null),
3457	>	() -> f.thenAcceptAsync(x -> {} , null),
3458		() -> f.thenAcceptAsync(null, exec),
3459
3460		() -> f.thenRun(null),
#	Line 3260 | Line 3489 | public class CompletableFutureTest exten
3489		() -> f.applyToEither(g, null),
3490		() -> f.applyToEitherAsync(g, null),
3491		() -> f.applyToEitherAsync(g, null, exec),
3492	<	() -> f.applyToEither(nullFuture, (x) -> x),
3493	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x),
3494	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
3495	<	() -> f.applyToEitherAsync(g, (x) -> x, null),
3492	>	() -> f.applyToEither(nullFuture, x -> x),
3493	>	() -> f.applyToEitherAsync(nullFuture, x -> x),
3494	>	() -> f.applyToEitherAsync(nullFuture, x -> x, exec),
3495	>	() -> f.applyToEitherAsync(g, x -> x, null),
3496
3497		() -> f.acceptEither(g, null),
3498		() -> f.acceptEitherAsync(g, null),
3499		() -> f.acceptEitherAsync(g, null, exec),
3500	<	() -> f.acceptEither(nullFuture, (x) -> {}),
3501	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}),
3502	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
3503	<	() -> f.acceptEitherAsync(g, (x) -> {}, null),
3500	>	() -> f.acceptEither(nullFuture, x -> {}),
3501	>	() -> f.acceptEitherAsync(nullFuture, x -> {}),
3502	>	() -> f.acceptEitherAsync(nullFuture, x -> {}, exec),
3503	>	() -> f.acceptEitherAsync(g, x -> {}, null),
3504
3505		() -> f.runAfterEither(g, null),
3506		() -> f.runAfterEitherAsync(g, null),
#	Line 3317 | Line 3546 | public class CompletableFutureTest exten
3546		assertEquals(0, exec.count.get());
3547		}
3548
3320	–	static class CountingRejectingExecutor implements Executor {
3321	–	final RejectedExecutionException ex = new RejectedExecutionException();
3322	–	final AtomicInteger count = new AtomicInteger(0);
3323	–	public void execute(Runnable r) {
3324	–	count.getAndIncrement();
3325	–	throw ex;
3326	–	}
3327	–	}
3328	–
3549		/**
3550		* Test submissions to an executor that rejects all tasks.
3551		*/
3552		public void testRejectingExecutor() {
3553	<	for (Integer v : new Integer[] { 1, null }) {
3554	<
3553	>	for (Integer v : new Integer[] { 1, null })
3554	>	{
3555		final CountingRejectingExecutor e = new CountingRejectingExecutor();
3556
3557		final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
#	Line 3346 | Line 3566 | public class CompletableFutureTest exten
3566		for (CompletableFuture<Integer> src : srcs) {
3567		List<CompletableFuture<?>> fs = new ArrayList<>();
3568		fs.add(src.thenRunAsync(() -> {}, e));
3569	<	fs.add(src.thenAcceptAsync((z) -> {}, e));
3570	<	fs.add(src.thenApplyAsync((z) -> z, e));
3569	>	fs.add(src.thenAcceptAsync(z -> {}, e));
3570	>	fs.add(src.thenApplyAsync(z -> z, e));
3571
3572		fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3573		fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3574		fs.add(src.runAfterBothAsync(src, () -> {}, e));
3575
3576	<	fs.add(src.applyToEitherAsync(src, (z) -> z, e));
3577	<	fs.add(src.acceptEitherAsync(src, (z) -> {}, e));
3576	>	fs.add(src.applyToEitherAsync(src, z -> z, e));
3577	>	fs.add(src.acceptEitherAsync(src, z -> {}, e));
3578		fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3579
3580	<	fs.add(src.thenComposeAsync((z) -> null, e));
3580	>	fs.add(src.thenComposeAsync(z -> null, e));
3581		fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3582		fs.add(src.handleAsync((z, t) -> null, e));
3583
#	Line 3390 | Line 3610 | public class CompletableFutureTest exten
3610		{
3611		List<CompletableFuture<?>> fs = new ArrayList<>();
3612
3613	<	fs.add(complete.applyToEitherAsync(incomplete, (z) -> z, e));
3614	<	fs.add(incomplete.applyToEitherAsync(complete, (z) -> z, e));
3613	>	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3614	>	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3615
3616	<	fs.add(complete.acceptEitherAsync(incomplete, (z) -> {}, e));
3617	<	fs.add(incomplete.acceptEitherAsync(complete, (z) -> {}, e));
3616	>	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3617	>	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3618
3619		fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3620		fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
#	Line 3410 | Line 3630 | public class CompletableFutureTest exten
3630		checkCompletedWithWrappedException(future, e.ex);
3631
3632		assertEquals(futures.size(), e.count.get());
3633	<
3414	<	}
3415	<	}
3633	>	}}
3634
3635		/**
3636		* Test submissions to an executor that rejects all tasks, but
#	Line 3420 | Line 3638 | public class CompletableFutureTest exten
3638		* explicitly completed.
3639		*/
3640		public void testRejectingExecutorNeverInvoked() {
3641	+	for (Integer v : new Integer[] { 1, null })
3642	+	{
3643		final CountingRejectingExecutor e = new CountingRejectingExecutor();
3644
3425	–	for (Integer v : new Integer[] { 1, null }) {
3426	–
3645		final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3646		final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3647
3430	–	List<CompletableFuture<?>> futures = new ArrayList<>();
3431	–
3432	–	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3433	–	srcs.add(complete);
3434	–	srcs.add(incomplete);
3435	–
3648		List<CompletableFuture<?>> fs = new ArrayList<>();
3649		fs.add(incomplete.thenRunAsync(() -> {}, e));
3650	<	fs.add(incomplete.thenAcceptAsync((z) -> {}, e));
3651	<	fs.add(incomplete.thenApplyAsync((z) -> z, e));
3650	>	fs.add(incomplete.thenAcceptAsync(z -> {}, e));
3651	>	fs.add(incomplete.thenApplyAsync(z -> z, e));
3652
3653		fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3654		fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3655		fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3656
3657	<	fs.add(incomplete.applyToEitherAsync(incomplete, (z) -> z, e));
3658	<	fs.add(incomplete.acceptEitherAsync(incomplete, (z) -> {}, e));
3657	>	fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e));
3658	>	fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e));
3659		fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3660
3661	<	fs.add(incomplete.thenComposeAsync((z) -> null, e));
3661	>	fs.add(incomplete.thenComposeAsync(z -> null, e));
3662		fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3663		fs.add(incomplete.handleAsync((z, t) -> null, e));
3664
#	Line 3471 | Line 3683 | public class CompletableFutureTest exten
3683		checkCompletedNormally(future, null);
3684
3685		assertEquals(0, e.count.get());
3686	<
3475	<	}
3476	<	}
3686	>	}}
3687
3688		/**
3689		* toCompletableFuture returns this CompletableFuture.
#	Line 3508 | Line 3718 | public class CompletableFutureTest exten
3718		*/
3719		public void testCompletedStage() {
3720		AtomicInteger x = new AtomicInteger(0);
3721	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3721	>	AtomicReference<Throwable> r = new AtomicReference<>();
3722		CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3723		f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3724		assertEquals(x.get(), 1);
#	Line 3553 | Line 3763 | public class CompletableFutureTest exten
3763		* copy returns a CompletableFuture that is completed normally,
3764		* with the same value, when source is.
3765		*/
3766	<	public void testCopy() {
3766	>	public void testCopy_normalCompletion() {
3767	>	for (boolean createIncomplete : new boolean[] { true, false })
3768	>	for (Integer v1 : new Integer[] { 1, null })
3769	>	{
3770		CompletableFuture<Integer> f = new CompletableFuture<>();
3771	+	if (!createIncomplete) assertTrue(f.complete(v1));
3772		CompletableFuture<Integer> g = f.copy();
3773	<	checkIncomplete(f);
3774	<	checkIncomplete(g);
3775	<	f.complete(1);
3776	<	checkCompletedNormally(f, 1);
3777	<	checkCompletedNormally(g, 1);
3778	<	}
3773	>	if (createIncomplete) {
3774	>	checkIncomplete(f);
3775	>	checkIncomplete(g);
3776	>	assertTrue(f.complete(v1));
3777	>	}
3778	>	checkCompletedNormally(f, v1);
3779	>	checkCompletedNormally(g, v1);
3780	>	}}
3781
3782		/**
3783		* copy returns a CompletableFuture that is completed exceptionally
3784		* when source is.
3785		*/
3786	<	public void testCopy2() {
3786	>	public void testCopy_exceptionalCompletion() {
3787	>	for (boolean createIncomplete : new boolean[] { true, false })
3788	>	{
3789	>	CFException ex = new CFException();
3790		CompletableFuture<Integer> f = new CompletableFuture<>();
3791	+	if (!createIncomplete) f.completeExceptionally(ex);
3792		CompletableFuture<Integer> g = f.copy();
3793	<	checkIncomplete(f);
3794	<	checkIncomplete(g);
3795	<	CFException ex = new CFException();
3796	<	f.completeExceptionally(ex);
3793	>	if (createIncomplete) {
3794	>	checkIncomplete(f);
3795	>	checkIncomplete(g);
3796	>	f.completeExceptionally(ex);
3797	>	}
3798		checkCompletedExceptionally(f, ex);
3799		checkCompletedWithWrappedException(g, ex);
3800	+	}}
3801	+
3802	+	/**
3803	+	* Completion of a copy does not complete its source.
3804	+	*/
3805	+	public void testCopy_oneWayPropagation() {
3806	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3807	+	assertTrue(f.copy().complete(1));
3808	+	assertTrue(f.copy().complete(null));
3809	+	assertTrue(f.copy().cancel(true));
3810	+	assertTrue(f.copy().cancel(false));
3811	+	assertTrue(f.copy().completeExceptionally(new CFException()));
3812	+	checkIncomplete(f);
3813		}
3814
3815		/**
#	Line 3586 | Line 3820 | public class CompletableFutureTest exten
3820		CompletableFuture<Integer> f = new CompletableFuture<>();
3821		CompletionStage<Integer> g = f.minimalCompletionStage();
3822		AtomicInteger x = new AtomicInteger(0);
3823	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3823	>	AtomicReference<Throwable> r = new AtomicReference<>();
3824		checkIncomplete(f);
3825		g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3826		f.complete(1);
#	Line 3603 | Line 3837 | public class CompletableFutureTest exten
3837		CompletableFuture<Integer> f = new CompletableFuture<>();
3838		CompletionStage<Integer> g = f.minimalCompletionStage();
3839		AtomicInteger x = new AtomicInteger(0);
3840	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3840	>	AtomicReference<Throwable> r = new AtomicReference<>();
3841		g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3842		checkIncomplete(f);
3843		CFException ex = new CFException();
#	Line 3621 | Line 3855 | public class CompletableFutureTest exten
3855		CFException ex = new CFException();
3856		CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3857		AtomicInteger x = new AtomicInteger(0);
3858	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3858	>	AtomicReference<Throwable> r = new AtomicReference<>();
3859		f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3860		assertEquals(x.get(), 0);
3861		assertEquals(r.get(), ex);
#	Line 3645 | Line 3879 | public class CompletableFutureTest exten
3879		public void testCompleteAsync2() {
3880		CompletableFuture<Integer> f = new CompletableFuture<>();
3881		CFException ex = new CFException();
3882	<	f.completeAsync(() -> {if (true) throw ex; return 1;});
3882	>	f.completeAsync(() -> { throw ex; });
3883		try {
3884		f.join();
3885		shouldThrow();
#	Line 3675 | Line 3909 | public class CompletableFutureTest exten
3909		CompletableFuture<Integer> f = new CompletableFuture<>();
3910		CFException ex = new CFException();
3911		ThreadExecutor executor = new ThreadExecutor();
3912	<	f.completeAsync(() -> {if (true) throw ex; return 1;}, executor);
3912	>	f.completeAsync(() -> { throw ex; }, executor);
3913		try {
3914		f.join();
3915		shouldThrow();
#	Line 3827 | Line 4061 | public class CompletableFutureTest exten
4061		final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
4062		final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4063
4064	+	final Runnable noopRunnable = new Noop(m);
4065	+	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
4066	+	final Function<Integer, Integer> incFunction = new IncFunction(m);
4067	+
4068		List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
4069		= new ArrayList<>();
4070
4071	<	funs.add((y) -> m.thenRun(y, new Noop(m)));
4072	<	funs.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
4073	<	funs.add((y) -> m.thenApply(y, new IncFunction(m)));
4074	<
4075	<	funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
4076	<	funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
4077	<	funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
4078	<
4079	<	funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
4080	<	funs.add((y) -> m.runAfterBoth(v42, y, new Noop(m)));
4081	<	funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4082	<	funs.add((y) -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
4083	<	funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
4084	<	funs.add((y) -> m.thenCombine(v42, y, new SubtractFunction(m)));
4085	<
4086	<	funs.add((y) -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
4087	<
4088	<	funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
4089	<
4090	<	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y}));
4091	<	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
4092	<	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {v42, y}));
4093	<	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y}));
4094	<	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
4095	<	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {incomplete, y}));
4071	>	funs.add(y -> m.thenRun(y, noopRunnable));
4072	>	funs.add(y -> m.thenAccept(y, noopConsumer));
4073	>	funs.add(y -> m.thenApply(y, incFunction));
4074	>
4075	>	funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable));
4076	>	funs.add(y -> m.acceptEither(y, incomplete, noopConsumer));
4077	>	funs.add(y -> m.applyToEither(y, incomplete, incFunction));
4078	>
4079	>	funs.add(y -> m.runAfterBoth(y, v42, noopRunnable));
4080	>	funs.add(y -> m.runAfterBoth(v42, y, noopRunnable));
4081	>	funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4082	>	funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
4083	>	funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m)));
4084	>	funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m)));
4085	>
4086	>	funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
4087	>
4088	>	funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m)));
4089	>
4090	>	funs.add(y -> CompletableFuture.allOf(y));
4091	>	funs.add(y -> CompletableFuture.allOf(y, v42));
4092	>	funs.add(y -> CompletableFuture.allOf(v42, y));
4093	>	funs.add(y -> CompletableFuture.anyOf(y));
4094	>	funs.add(y -> CompletableFuture.anyOf(y, incomplete));
4095	>	funs.add(y -> CompletableFuture.anyOf(incomplete, y));
4096
4097		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4098		fun : funs) {
4099		CompletableFuture<Integer> f = new CompletableFuture<>();
4100		f.completeExceptionally(ex);
4101	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4101	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4102		checkCompletedWithWrappedException(src, ex);
4103		CompletableFuture<?> dep = fun.apply(src);
4104		checkCompletedWithWrappedException(dep, ex);
#	Line 3870 | Line 4108 | public class CompletableFutureTest exten
4108		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4109		fun : funs) {
4110		CompletableFuture<Integer> f = new CompletableFuture<>();
4111	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4111	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4112		CompletableFuture<?> dep = fun.apply(src);
4113		f.completeExceptionally(ex);
4114		checkCompletedWithWrappedException(src, ex);
#	Line 3884 | Line 4122 | public class CompletableFutureTest exten
4122		CompletableFuture<Integer> f = new CompletableFuture<>();
4123		f.cancel(mayInterruptIfRunning);
4124		checkCancelled(f);
4125	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4125	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4126		checkCompletedWithWrappedCancellationException(src);
4127		CompletableFuture<?> dep = fun.apply(src);
4128		checkCompletedWithWrappedCancellationException(dep);
#	Line 3895 | Line 4133 | public class CompletableFutureTest exten
4133		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4134		fun : funs) {
4135		CompletableFuture<Integer> f = new CompletableFuture<>();
4136	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4136	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4137		CompletableFuture<?> dep = fun.apply(src);
4138		f.cancel(mayInterruptIfRunning);
4139		checkCancelled(f);
#	Line 3906 | Line 4144 | public class CompletableFutureTest exten
4144		}}
4145
4146		/**
4147	<	* Minimal completion stages throw UOE for all non-CompletionStage methods
4147	>	* Minimal completion stages throw UOE for most non-CompletionStage methods
4148		*/
4149		public void testMinimalCompletionStage_minimality() {
4150		if (!testImplementationDetails) return;
4151		Function<Method, String> toSignature =
4152	<	(method) -> method.getName() + Arrays.toString(method.getParameterTypes());
4152	>	method -> method.getName() + Arrays.toString(method.getParameterTypes());
4153		Predicate<Method> isNotStatic =
4154	<	(method) -> (method.getModifiers() & Modifier.STATIC) == 0;
4154	>	method -> (method.getModifiers() & Modifier.STATIC) == 0;
4155		List<Method> minimalMethods =
4156		Stream.of(Object.class, CompletionStage.class)
4157	<	.flatMap((klazz) -> Stream.of(klazz.getMethods()))
4157	>	.flatMap(klazz -> Stream.of(klazz.getMethods()))
4158		.filter(isNotStatic)
4159		.collect(Collectors.toList());
4160		// Methods from CompletableFuture permitted NOT to throw UOE
#	Line 3932 | Line 4170 | public class CompletableFutureTest exten
4170		.collect(Collectors.toSet());
4171		List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
4172		.filter(isNotStatic)
4173	<	.filter((method) -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4173	>	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4174		.collect(Collectors.toList());
4175
4176	<	CompletionStage<Integer> minimalStage =
4176	>	List<CompletionStage<Integer>> stages = new ArrayList<>();
4177	>	CompletionStage<Integer> min =
4178		new CompletableFuture<Integer>().minimalCompletionStage();
4179	+	stages.add(min);
4180	+	stages.add(min.thenApply(x -> x));
4181	+	stages.add(CompletableFuture.completedStage(1));
4182	+	stages.add(CompletableFuture.failedStage(new CFException()));
4183
4184		List<Method> bugs = new ArrayList<>();
4185		for (Method method : allMethods) {
#	Line 3952 | Line 4195 | public class CompletableFutureTest exten
4195		else if (parameterTypes[i] == long.class)
4196		args[i] = 0L;
4197		}
4198	<	try {
4199	<	method.invoke(minimalStage, args);
4200	<	bugs.add(method);
3958	<	}
3959	<	catch (java.lang.reflect.InvocationTargetException expected) {
3960	<	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4198	>	for (CompletionStage<Integer> stage : stages) {
4199	>	try {
4200	>	method.invoke(stage, args);
4201		bugs.add(method);
3962	–	// expected.getCause().printStackTrace();
4202		}
4203	+	catch (java.lang.reflect.InvocationTargetException expected) {
4204	+	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4205	+	bugs.add(method);
4206	+	// expected.getCause().printStackTrace();
4207	+	}
4208	+	}
4209	+	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4210		}
3965	–	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4211		}
4212		if (!bugs.isEmpty())
4213	<	throw new Error("Methods did not throw UOE: " + bugs.toString());
4213	>	throw new Error("Methods did not throw UOE: " + bugs);
4214	>	}
4215	>
4216	>	/**
4217	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4218	>	* is completed normally, with the same value, when source is.
4219	>	*/
4220	>	public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() {
4221	>	for (boolean createIncomplete : new boolean[] { true, false })
4222	>	for (Integer v1 : new Integer[] { 1, null })
4223	>	{
4224	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4225	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4226	>	if (!createIncomplete) assertTrue(f.complete(v1));
4227	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4228	>	if (createIncomplete) {
4229	>	checkIncomplete(f);
4230	>	checkIncomplete(g);
4231	>	assertTrue(f.complete(v1));
4232	>	}
4233	>	checkCompletedNormally(f, v1);
4234	>	checkCompletedNormally(g, v1);
4235	>	}}
4236	>
4237	>	/**
4238	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4239	>	* is completed exceptionally when source is.
4240	>	*/
4241	>	public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() {
4242	>	for (boolean createIncomplete : new boolean[] { true, false })
4243	>	{
4244	>	CFException ex = new CFException();
4245	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4246	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4247	>	if (!createIncomplete) f.completeExceptionally(ex);
4248	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4249	>	if (createIncomplete) {
4250	>	checkIncomplete(f);
4251	>	checkIncomplete(g);
4252	>	f.completeExceptionally(ex);
4253	>	}
4254	>	checkCompletedExceptionally(f, ex);
4255	>	checkCompletedWithWrappedException(g, ex);
4256	>	}}
4257	>
4258	>	/**
4259	>	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4260	>	*/
4261	>	public void testMinimalCompletionStage_toCompletableFuture_mutable() {
4262	>	for (Integer v1 : new Integer[] { 1, null })
4263	>	{
4264	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4265	>	CompletionStage minimal = f.minimalCompletionStage();
4266	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4267	>	assertTrue(g.complete(v1));
4268	>	checkCompletedNormally(g, v1);
4269	>	checkIncomplete(f);
4270	>	checkIncomplete(minimal.toCompletableFuture());
4271	>	}}
4272	>
4273	>	/**
4274	>	* minimalStage.toCompletableFuture().join() awaits completion
4275	>	*/
4276	>	public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception {
4277	>	for (boolean createIncomplete : new boolean[] { true, false })
4278	>	for (Integer v1 : new Integer[] { 1, null })
4279	>	{
4280	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4281	>	if (!createIncomplete) assertTrue(f.complete(v1));
4282	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4283	>	if (createIncomplete) assertTrue(f.complete(v1));
4284	>	assertEquals(v1, minimal.toCompletableFuture().join());
4285	>	assertEquals(v1, minimal.toCompletableFuture().get());
4286	>	checkCompletedNormally(minimal.toCompletableFuture(), v1);
4287	>	}}
4288	>
4289	>	/**
4290	>	* Completion of a toCompletableFuture copy of a minimal stage
4291	>	* does not complete its source.
4292	>	*/
4293	>	public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() {
4294	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4295	>	CompletionStage<Integer> g = f.minimalCompletionStage();
4296	>	assertTrue(g.toCompletableFuture().complete(1));
4297	>	assertTrue(g.toCompletableFuture().complete(null));
4298	>	assertTrue(g.toCompletableFuture().cancel(true));
4299	>	assertTrue(g.toCompletableFuture().cancel(false));
4300	>	assertTrue(g.toCompletableFuture().completeExceptionally(new CFException()));
4301	>	checkIncomplete(g.toCompletableFuture());
4302	>	f.complete(1);
4303	>	checkCompletedNormally(g.toCompletableFuture(), 1);
4304	>	}
4305	>
4306	>	/** Demo utility method for external reliable toCompletableFuture */
4307	>	static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) {
4308	>	CompletableFuture<T> f = new CompletableFuture<>();
4309	>	stage.handle((T t, Throwable ex) -> {
4310	>	if (ex != null) f.completeExceptionally(ex);
4311	>	else f.complete(t);
4312	>	return null;
4313	>	});
4314	>	return f;
4315		}
4316
4317	+	/** Demo utility method to join a CompletionStage */
4318	+	static <T> T join(CompletionStage<T> stage) {
4319	+	return toCompletableFuture(stage).join();
4320	+	}
4321	+
4322	+	/**
4323	+	* Joining a minimal stage "by hand" works
4324	+	*/
4325	+	public void testMinimalCompletionStage_join_by_hand() {
4326	+	for (boolean createIncomplete : new boolean[] { true, false })
4327	+	for (Integer v1 : new Integer[] { 1, null })
4328	+	{
4329	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4330	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4331	+	CompletableFuture<Integer> g = new CompletableFuture<>();
4332	+	if (!createIncomplete) assertTrue(f.complete(v1));
4333	+	minimal.thenAccept(x -> g.complete(x));
4334	+	if (createIncomplete) assertTrue(f.complete(v1));
4335	+	g.join();
4336	+	checkCompletedNormally(g, v1);
4337	+	checkCompletedNormally(f, v1);
4338	+	assertEquals(v1, join(minimal));
4339	+	}}
4340	+
4341		static class Monad {
4342		static class ZeroException extends RuntimeException {
4343		public ZeroException() { super("monadic zero"); }
#	Line 3984 | Line 4354 | public class CompletableFutureTest exten
4354		static <T,U,V> Function<T, CompletableFuture<V>> compose
4355		(Function<T, CompletableFuture<U>> f,
4356		Function<U, CompletableFuture<V>> g) {
4357	<	return (x) -> f.apply(x).thenCompose(g);
4357	>	return x -> f.apply(x).thenCompose(g);
4358		}
4359
4360		static void assertZero(CompletableFuture<?> f) {
4361		try {
4362		f.getNow(null);
4363	<	throw new AssertionFailedError("should throw");
4363	>	throw new AssertionError("should throw");
4364		} catch (CompletionException success) {
4365		assertTrue(success.getCause() instanceof ZeroException);
4366		}
#	Line 4064 | Line 4434 | public class CompletableFutureTest exten
4434
4435		// Some mutually non-commutative functions
4436		Function<Long, CompletableFuture<Long>> triple
4437	<	= (x) -> Monad.unit(3 * x);
4437	>	= x -> Monad.unit(3 * x);
4438		Function<Long, CompletableFuture<Long>> inc
4439	<	= (x) -> Monad.unit(x + 1);
4439	>	= x -> Monad.unit(x + 1);
4440
4441		// unit is a right identity: m >>= unit === m
4442		Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
#	Line 4078 | Line 4448 | public class CompletableFutureTest exten
4448		// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4449		Monad.assertFutureEquals(
4450		unit.apply(5L).thenCompose(inc).thenCompose(triple),
4451	<	unit.apply(5L).thenCompose((x) -> inc.apply(x).thenCompose(triple)));
4451	>	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4452
4453		// The case for CompletableFuture as an additive monad is weaker...
4454
#	Line 4088 | Line 4458 | public class CompletableFutureTest exten
4458		// left zero: zero >>= f === zero
4459		Monad.assertZero(zero.thenCompose(inc));
4460		// right zero: f >>= (\x -> zero) === zero
4461	<	Monad.assertZero(inc.apply(5L).thenCompose((x) -> zero));
4461	>	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4462
4463		// f plus zero === f
4464		Monad.assertFutureEquals(Monad.unit(5L),
#	Line 4114 | Line 4484 | public class CompletableFutureTest exten
4484		Monad.plus(godot, Monad.unit(5L)));
4485		}
4486
4487	+	/** Test long recursive chains of CompletableFutures with cascading completions */
4488	+	@SuppressWarnings("FutureReturnValueIgnored")
4489	+	public void testRecursiveChains() throws Throwable {
4490	+	for (ExecutionMode m : ExecutionMode.values())
4491	+	for (boolean addDeadEnds : new boolean[] { true, false })
4492	+	{
4493	+	final int val = 42;
4494	+	final int n = expensiveTests ? 1_000 : 2;
4495	+	CompletableFuture<Integer> head = new CompletableFuture<>();
4496	+	CompletableFuture<Integer> tail = head;
4497	+	for (int i = 0; i < n; i++) {
4498	+	if (addDeadEnds) m.thenApply(tail, v -> v + 1);
4499	+	tail = m.thenApply(tail, v -> v + 1);
4500	+	if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1);
4501	+	tail = m.applyToEither(tail, tail, v -> v + 1);
4502	+	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1);
4503	+	tail = m.thenCombine(tail, tail, (v, w) -> v + 1);
4504	+	}
4505	+	head.complete(val);
4506	+	assertEquals(val + 3 * n, (int) tail.join());
4507	+	}}
4508	+
4509		/**
4510		* A single CompletableFuture with many dependents.
4511		* A demo of scalability - runtime is O(n).
4512		*/
4513	+	@SuppressWarnings("FutureReturnValueIgnored")
4514		public void testManyDependents() throws Throwable {
4515	<	final int n = 1_000;
4515	>	final int n = expensiveTests ? 1_000_000 : 10;
4516		final CompletableFuture<Void> head = new CompletableFuture<>();
4517		final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4518		final AtomicInteger count = new AtomicInteger(0);
4519		for (int i = 0; i < n; i++) {
4520		head.thenRun(() -> count.getAndIncrement());
4521	<	head.thenAccept((x) -> count.getAndIncrement());
4522	<	head.thenApply((x) -> count.getAndIncrement());
4521	>	head.thenAccept(x -> count.getAndIncrement());
4522	>	head.thenApply(x -> count.getAndIncrement());
4523
4524		head.runAfterBoth(complete, () -> count.getAndIncrement());
4525		head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
#	Line 4136 | Line 4529 | public class CompletableFutureTest exten
4529		complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4530
4531		head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4532	<	head.acceptEither(new CompletableFuture<Void>(), (x) -> count.getAndIncrement());
4533	<	head.applyToEither(new CompletableFuture<Void>(), (x) -> count.getAndIncrement());
4532	>	head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4533	>	head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4534		new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4535	<	new CompletableFuture<Void>().acceptEither(head, (x) -> count.getAndIncrement());
4536	<	new CompletableFuture<Void>().applyToEither(head, (x) -> count.getAndIncrement());
4535	>	new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement());
4536	>	new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement());
4537		}
4538		head.complete(null);
4539		assertEquals(5 * 3 * n, count.get());
4540		}
4541
4542	+	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4543	+	@SuppressWarnings("FutureReturnValueIgnored")
4544	+	public void testCoCompletionGarbageRetention() throws Throwable {
4545	+	final int n = expensiveTests ? 1_000_000 : 10;
4546	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4547	+	CompletableFuture<Integer> f;
4548	+	for (int i = 0; i < n; i++) {
4549	+	f = new CompletableFuture<>();
4550	+	f.runAfterEither(incomplete, () -> {});
4551	+	f.complete(null);
4552	+
4553	+	f = new CompletableFuture<>();
4554	+	f.acceptEither(incomplete, x -> {});
4555	+	f.complete(null);
4556	+
4557	+	f = new CompletableFuture<>();
4558	+	f.applyToEither(incomplete, x -> x);
4559	+	f.complete(null);
4560	+
4561	+	f = new CompletableFuture<>();
4562	+	CompletableFuture.anyOf(f, incomplete);
4563	+	f.complete(null);
4564	+	}
4565	+
4566	+	for (int i = 0; i < n; i++) {
4567	+	f = new CompletableFuture<>();
4568	+	incomplete.runAfterEither(f, () -> {});
4569	+	f.complete(null);
4570	+
4571	+	f = new CompletableFuture<>();
4572	+	incomplete.acceptEither(f, x -> {});
4573	+	f.complete(null);
4574	+
4575	+	f = new CompletableFuture<>();
4576	+	incomplete.applyToEither(f, x -> x);
4577	+	f.complete(null);
4578	+
4579	+	f = new CompletableFuture<>();
4580	+	CompletableFuture.anyOf(incomplete, f);
4581	+	f.complete(null);
4582	+	}
4583	+	}
4584	+
4585	+	/**
4586	+	* Reproduction recipe for:
4587	+	* 8160402: Garbage retention with CompletableFuture.anyOf
4588	+	* cvs update -D '2016-05-01' ./src/main/java/util/concurrent/CompletableFuture.java && ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testAnyOfGarbageRetention tck; cvs update -A
4589	+	*/
4590	+	public void testAnyOfGarbageRetention() throws Throwable {
4591	+	for (Integer v : new Integer[] { 1, null })
4592	+	{
4593	+	final int n = expensiveTests ? 100_000 : 10;
4594	+	CompletableFuture<Integer>[] fs
4595	+	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4596	+	for (int i = 0; i < fs.length; i++)
4597	+	fs[i] = new CompletableFuture<>();
4598	+	fs[fs.length - 1].complete(v);
4599	+	for (int i = 0; i < n; i++)
4600	+	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4601	+	}}
4602	+
4603	+	/**
4604	+	* Checks for garbage retention with allOf.
4605	+	*
4606	+	* As of 2016-07, fails with OOME:
4607	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4608	+	*/
4609	+	public void testCancelledAllOfGarbageRetention() throws Throwable {
4610	+	final int n = expensiveTests ? 100_000 : 10;
4611	+	CompletableFuture<Integer>[] fs
4612	+	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4613	+	for (int i = 0; i < fs.length; i++)
4614	+	fs[i] = new CompletableFuture<>();
4615	+	for (int i = 0; i < n; i++)
4616	+	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4617	+	}
4618	+
4619	+	/**
4620	+	* Checks for garbage retention when a dependent future is
4621	+	* cancelled and garbage-collected.
4622	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4623	+	*
4624	+	* As of 2016-07, fails with OOME:
4625	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4626	+	*/
4627	+	public void testCancelledGarbageRetention() throws Throwable {
4628	+	final int n = expensiveTests ? 100_000 : 10;
4629	+	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4630	+	for (int i = 0; i < n; i++)
4631	+	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4632	+	}
4633	+
4634	+	/**
4635	+	* Checks for garbage retention when MinimalStage.toCompletableFuture()
4636	+	* is invoked many times.
4637	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4638	+	*
4639	+	* As of 2016-07, fails with OOME:
4640	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck
4641	+	*/
4642	+	public void testToCompletableFutureGarbageRetention() throws Throwable {
4643	+	final int n = expensiveTests ? 900_000 : 10;
4644	+	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4645	+	CompletionStage minimal = neverCompleted.minimalCompletionStage();
4646	+	for (int i = 0; i < n; i++)
4647	+	assertTrue(minimal.toCompletableFuture().cancel(true));
4648	+	}
4649	+
4650		//     static <U> U join(CompletionStage<U> stage) {
4651		//         CompletableFuture<U> f = new CompletableFuture<>();
4652		//         stage.whenComplete((v, ex) -> {
#	Line 4170 | Line 4671 | public class CompletableFutureTest exten
4671		//         return stage.toCompletableFuture().copy().isDone();
4672		//     }
4673
4674	+	// For testing default implementations
4675	+	// Only non-default interface methods defined.
4676	+	static final class DelegatedCompletionStage<T> implements CompletionStage<T> {
4677	+	final CompletableFuture<T> cf;
4678	+	DelegatedCompletionStage(CompletableFuture<T> cf) { this.cf = cf; }
4679	+	public CompletableFuture<T> toCompletableFuture() {
4680	+	return cf; }
4681	+	public CompletionStage<Void> thenRun
4682	+	(Runnable action) {
4683	+	return cf.thenRun(action); }
4684	+	public CompletionStage<Void> thenRunAsync
4685	+	(Runnable action) {
4686	+	return cf.thenRunAsync(action); }
4687	+	public CompletionStage<Void> thenRunAsync
4688	+	(Runnable action,
4689	+	Executor executor) {
4690	+	return cf.thenRunAsync(action, executor); }
4691	+	public CompletionStage<Void> thenAccept
4692	+	(Consumer<? super T> action) {
4693	+	return cf.thenAccept(action); }
4694	+	public CompletionStage<Void> thenAcceptAsync
4695	+	(Consumer<? super T> action) {
4696	+	return cf.thenAcceptAsync(action); }
4697	+	public CompletionStage<Void> thenAcceptAsync
4698	+	(Consumer<? super T> action,
4699	+	Executor executor) {
4700	+	return cf.thenAcceptAsync(action, executor); }
4701	+	public <U> CompletionStage<U> thenApply
4702	+	(Function<? super T,? extends U> a) {
4703	+	return cf.thenApply(a); }
4704	+	public <U> CompletionStage<U> thenApplyAsync
4705	+	(Function<? super T,? extends U> fn) {
4706	+	return cf.thenApplyAsync(fn); }
4707	+	public <U> CompletionStage<U> thenApplyAsync
4708	+	(Function<? super T,? extends U> fn,
4709	+	Executor executor) {
4710	+	return cf.thenApplyAsync(fn, executor); }
4711	+	public <U,V> CompletionStage<V> thenCombine
4712	+	(CompletionStage<? extends U> other,
4713	+	BiFunction<? super T,? super U,? extends V> fn) {
4714	+	return cf.thenCombine(other, fn); }
4715	+	public <U,V> CompletionStage<V> thenCombineAsync
4716	+	(CompletionStage<? extends U> other,
4717	+	BiFunction<? super T,? super U,? extends V> fn) {
4718	+	return cf.thenCombineAsync(other, fn); }
4719	+	public <U,V> CompletionStage<V> thenCombineAsync
4720	+	(CompletionStage<? extends U> other,
4721	+	BiFunction<? super T,? super U,? extends V> fn,
4722	+	Executor executor) {
4723	+	return cf.thenCombineAsync(other, fn, executor); }
4724	+	public <U> CompletionStage<Void> thenAcceptBoth
4725	+	(CompletionStage<? extends U> other,
4726	+	BiConsumer<? super T, ? super U> action) {
4727	+	return cf.thenAcceptBoth(other, action); }
4728	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4729	+	(CompletionStage<? extends U> other,
4730	+	BiConsumer<? super T, ? super U> action) {
4731	+	return cf.thenAcceptBothAsync(other, action); }
4732	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4733	+	(CompletionStage<? extends U> other,
4734	+	BiConsumer<? super T, ? super U> action,
4735	+	Executor executor) {
4736	+	return cf.thenAcceptBothAsync(other, action, executor); }
4737	+	public CompletionStage<Void> runAfterBoth
4738	+	(CompletionStage<?> other,
4739	+	Runnable action) {
4740	+	return cf.runAfterBoth(other, action); }
4741	+	public CompletionStage<Void> runAfterBothAsync
4742	+	(CompletionStage<?> other,
4743	+	Runnable action) {
4744	+	return cf.runAfterBothAsync(other, action); }
4745	+	public CompletionStage<Void> runAfterBothAsync
4746	+	(CompletionStage<?> other,
4747	+	Runnable action,
4748	+	Executor executor) {
4749	+	return cf.runAfterBothAsync(other, action, executor); }
4750	+	public <U> CompletionStage<U> applyToEither
4751	+	(CompletionStage<? extends T> other,
4752	+	Function<? super T, U> fn) {
4753	+	return cf.applyToEither(other, fn); }
4754	+	public <U> CompletionStage<U> applyToEitherAsync
4755	+	(CompletionStage<? extends T> other,
4756	+	Function<? super T, U> fn) {
4757	+	return cf.applyToEitherAsync(other, fn); }
4758	+	public <U> CompletionStage<U> applyToEitherAsync
4759	+	(CompletionStage<? extends T> other,
4760	+	Function<? super T, U> fn,
4761	+	Executor executor) {
4762	+	return cf.applyToEitherAsync(other, fn, executor); }
4763	+	public CompletionStage<Void> acceptEither
4764	+	(CompletionStage<? extends T> other,
4765	+	Consumer<? super T> action) {
4766	+	return cf.acceptEither(other, action); }
4767	+	public CompletionStage<Void> acceptEitherAsync
4768	+	(CompletionStage<? extends T> other,
4769	+	Consumer<? super T> action) {
4770	+	return cf.acceptEitherAsync(other, action); }
4771	+	public CompletionStage<Void> acceptEitherAsync
4772	+	(CompletionStage<? extends T> other,
4773	+	Consumer<? super T> action,
4774	+	Executor executor) {
4775	+	return cf.acceptEitherAsync(other, action, executor); }
4776	+	public CompletionStage<Void> runAfterEither
4777	+	(CompletionStage<?> other,
4778	+	Runnable action) {
4779	+	return cf.runAfterEither(other, action); }
4780	+	public CompletionStage<Void> runAfterEitherAsync
4781	+	(CompletionStage<?> other,
4782	+	Runnable action) {
4783	+	return cf.runAfterEitherAsync(other, action); }
4784	+	public CompletionStage<Void> runAfterEitherAsync
4785	+	(CompletionStage<?> other,
4786	+	Runnable action,
4787	+	Executor executor) {
4788	+	return cf.runAfterEitherAsync(other, action, executor); }
4789	+	public <U> CompletionStage<U> thenCompose
4790	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4791	+	return cf.thenCompose(fn); }
4792	+	public <U> CompletionStage<U> thenComposeAsync
4793	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4794	+	return cf.thenComposeAsync(fn); }
4795	+	public <U> CompletionStage<U> thenComposeAsync
4796	+	(Function<? super T, ? extends CompletionStage<U>> fn,
4797	+	Executor executor) {
4798	+	return cf.thenComposeAsync(fn, executor); }
4799	+	public <U> CompletionStage<U> handle
4800	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4801	+	return cf.handle(fn); }
4802	+	public <U> CompletionStage<U> handleAsync
4803	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4804	+	return cf.handleAsync(fn); }
4805	+	public <U> CompletionStage<U> handleAsync
4806	+	(BiFunction<? super T, Throwable, ? extends U> fn,
4807	+	Executor executor) {
4808	+	return cf.handleAsync(fn, executor); }
4809	+	public CompletionStage<T> whenComplete
4810	+	(BiConsumer<? super T, ? super Throwable> action) {
4811	+	return cf.whenComplete(action); }
4812	+	public CompletionStage<T> whenCompleteAsync
4813	+	(BiConsumer<? super T, ? super Throwable> action) {
4814	+	return cf.whenCompleteAsync(action); }
4815	+	public CompletionStage<T> whenCompleteAsync
4816	+	(BiConsumer<? super T, ? super Throwable> action,
4817	+	Executor executor) {
4818	+	return cf.whenCompleteAsync(action, executor); }
4819	+	public CompletionStage<T> exceptionally
4820	+	(Function<Throwable, ? extends T> fn) {
4821	+	return cf.exceptionally(fn); }
4822	+	}
4823	+
4824	+	/**
4825	+	* default-implemented exceptionallyAsync action is not invoked when
4826	+	* source completes normally, and source result is propagated
4827	+	*/
4828	+	public void testDefaultExceptionallyAsync_normalCompletion() {
4829	+	for (boolean createIncomplete : new boolean[] { true, false })
4830	+	for (Integer v1 : new Integer[] { 1, null })
4831	+	{
4832	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4833	+	final DelegatedCompletionStage<Integer> d =
4834	+	new DelegatedCompletionStage<Integer>(f);
4835	+	if (!createIncomplete) assertTrue(f.complete(v1));
4836	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4837	+	((Throwable t) -> {
4838	+	threadFail("should not be called");
4839	+	return null;            // unreached
4840	+	});
4841	+	if (createIncomplete) assertTrue(f.complete(v1));
4842	+
4843	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4844	+	}}
4845	+
4846	+	/**
4847	+	* default-implemented exceptionallyAsync action completes with
4848	+	* function value on source exception
4849	+	*/
4850	+	public void testDefaultExceptionallyAsync_exceptionalCompletion() {
4851	+	for (boolean createIncomplete : new boolean[] { true, false })
4852	+	for (Integer v1 : new Integer[] { 1, null })
4853	+	{
4854	+	final AtomicInteger a = new AtomicInteger(0);
4855	+	final CFException ex = new CFException();
4856	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4857	+	final DelegatedCompletionStage<Integer> d =
4858	+	new DelegatedCompletionStage<Integer>(f);
4859	+	if (!createIncomplete) f.completeExceptionally(ex);
4860	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4861	+	((Throwable t) -> {
4862	+	threadAssertSame(t, ex);
4863	+	a.getAndIncrement();
4864	+	return v1;
4865	+	});
4866	+	if (createIncomplete) f.completeExceptionally(ex);
4867	+
4868	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4869	+	assertEquals(1, a.get());
4870	+	}}
4871	+
4872	+	/**
4873	+	* Under default implementation, if an "exceptionally action"
4874	+	* throws an exception, it completes exceptionally with that
4875	+	* exception
4876	+	*/
4877	+	public void testDefaultExceptionallyAsync_exceptionalCompletionActionFailed() {
4878	+	for (boolean createIncomplete : new boolean[] { true, false })
4879	+	{
4880	+	final AtomicInteger a = new AtomicInteger(0);
4881	+	final CFException ex1 = new CFException();
4882	+	final CFException ex2 = new CFException();
4883	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4884	+	final DelegatedCompletionStage<Integer> d =
4885	+	new DelegatedCompletionStage<Integer>(f);
4886	+	if (!createIncomplete) f.completeExceptionally(ex1);
4887	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4888	+	((Throwable t) -> {
4889	+	threadAssertSame(t, ex1);
4890	+	a.getAndIncrement();
4891	+	throw ex2;
4892	+	});
4893	+	if (createIncomplete) f.completeExceptionally(ex1);
4894	+
4895	+	checkCompletedWithWrappedException(g.toCompletableFuture(), ex2);
4896	+	checkCompletedExceptionally(f, ex1);
4897	+	checkCompletedExceptionally(d.toCompletableFuture(), ex1);
4898	+	assertEquals(1, a.get());
4899	+	}}
4900	+
4901	+	/**
4902	+	* default-implemented exceptionallyCompose result completes
4903	+	* normally after normal completion of source
4904	+	*/
4905	+	public void testDefaultExceptionallyCompose_normalCompletion() {
4906	+	for (boolean createIncomplete : new boolean[] { true, false })
4907	+	for (Integer v1 : new Integer[] { 1, null })
4908	+	{
4909	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4910	+	final ExceptionalCompletableFutureFunction r =
4911	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4912	+	final DelegatedCompletionStage<Integer> d =
4913	+	new DelegatedCompletionStage<Integer>(f);
4914	+	if (!createIncomplete) assertTrue(f.complete(v1));
4915	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4916	+	if (createIncomplete) assertTrue(f.complete(v1));
4917	+
4918	+	checkCompletedNormally(f, v1);
4919	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4920	+	r.assertNotInvoked();
4921	+	}}
4922	+
4923	+	/**
4924	+	* default-implemented exceptionallyCompose result completes
4925	+	* normally after exceptional completion of source
4926	+	*/
4927	+	public void testDefaultExceptionallyCompose_exceptionalCompletion() {
4928	+	for (boolean createIncomplete : new boolean[] { true, false })
4929	+	{
4930	+	final CFException ex = new CFException();
4931	+	final ExceptionalCompletableFutureFunction r =
4932	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4933	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4934	+	final DelegatedCompletionStage<Integer> d =
4935	+	new DelegatedCompletionStage<Integer>(f);
4936	+	if (!createIncomplete) f.completeExceptionally(ex);
4937	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4938	+	if (createIncomplete) f.completeExceptionally(ex);
4939	+
4940	+	checkCompletedExceptionally(f, ex);
4941	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
4942	+	r.assertInvoked();
4943	+	}}
4944	+
4945	+	/**
4946	+	* default-implemented exceptionallyCompose completes
4947	+	* exceptionally on exception if action does
4948	+	*/
4949	+	public void testDefaultExceptionallyCompose_actionFailed() {
4950	+	for (boolean createIncomplete : new boolean[] { true, false })
4951	+	{
4952	+	final CFException ex = new CFException();
4953	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4954	+	final FailingExceptionalCompletableFutureFunction r
4955	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4956	+	final DelegatedCompletionStage<Integer> d =
4957	+	new DelegatedCompletionStage<Integer>(f);
4958	+	if (!createIncomplete) f.completeExceptionally(ex);
4959	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4960	+	if (createIncomplete) f.completeExceptionally(ex);
4961	+
4962	+	checkCompletedExceptionally(f, ex);
4963	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4964	+	r.assertInvoked();
4965	+	}}
4966	+
4967	+	/**
4968	+	* default-implemented exceptionallyComposeAsync result completes
4969	+	* normally after normal completion of source
4970	+	*/
4971	+	public void testDefaultExceptionallyComposeAsync_normalCompletion() {
4972	+	for (boolean createIncomplete : new boolean[] { true, false })
4973	+	for (Integer v1 : new Integer[] { 1, null })
4974	+	{
4975	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4976	+	final ExceptionalCompletableFutureFunction r =
4977	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4978	+	final DelegatedCompletionStage<Integer> d =
4979	+	new DelegatedCompletionStage<Integer>(f);
4980	+	if (!createIncomplete) assertTrue(f.complete(v1));
4981	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4982	+	if (createIncomplete) assertTrue(f.complete(v1));
4983	+
4984	+	checkCompletedNormally(f, v1);
4985	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4986	+	r.assertNotInvoked();
4987	+	}}
4988	+
4989	+	/**
4990	+	* default-implemented exceptionallyComposeAsync result completes
4991	+	* normally after exceptional completion of source
4992	+	*/
4993	+	public void testDefaultExceptionallyComposeAsync_exceptionalCompletion() {
4994	+	for (boolean createIncomplete : new boolean[] { true, false })
4995	+	{
4996	+	final CFException ex = new CFException();
4997	+	final ExceptionalCompletableFutureFunction r =
4998	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4999	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5000	+	final DelegatedCompletionStage<Integer> d =
5001	+	new DelegatedCompletionStage<Integer>(f);
5002	+	if (!createIncomplete) f.completeExceptionally(ex);
5003	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5004	+	if (createIncomplete) f.completeExceptionally(ex);
5005	+
5006	+	checkCompletedExceptionally(f, ex);
5007	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5008	+	r.assertInvoked();
5009	+	}}
5010	+
5011	+	/**
5012	+	* default-implemented exceptionallyComposeAsync completes
5013	+	* exceptionally on exception if action does
5014	+	*/
5015	+	public void testDefaultExceptionallyComposeAsync_actionFailed() {
5016	+	for (boolean createIncomplete : new boolean[] { true, false })
5017	+	{
5018	+	final CFException ex = new CFException();
5019	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5020	+	final FailingExceptionalCompletableFutureFunction r
5021	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
5022	+	final DelegatedCompletionStage<Integer> d =
5023	+	new DelegatedCompletionStage<Integer>(f);
5024	+	if (!createIncomplete) f.completeExceptionally(ex);
5025	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5026	+	if (createIncomplete) f.completeExceptionally(ex);
5027	+
5028	+	checkCompletedExceptionally(f, ex);
5029	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5030	+	r.assertInvoked();
5031	+	}}
5032	+
5033	+	/**
5034	+	* default-implemented exceptionallyComposeAsync result completes
5035	+	* normally after normal completion of source
5036	+	*/
5037	+	public void testDefaultExceptionallyComposeAsyncExecutor_normalCompletion() {
5038	+	for (boolean createIncomplete : new boolean[] { true, false })
5039	+	for (Integer v1 : new Integer[] { 1, null })
5040	+	{
5041	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5042	+	final ExceptionalCompletableFutureFunction r =
5043	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5044	+	final DelegatedCompletionStage<Integer> d =
5045	+	new DelegatedCompletionStage<Integer>(f);
5046	+	if (!createIncomplete) assertTrue(f.complete(v1));
5047	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5048	+	if (createIncomplete) assertTrue(f.complete(v1));
5049	+
5050	+	checkCompletedNormally(f, v1);
5051	+	checkCompletedNormally(g.toCompletableFuture(), v1);
5052	+	r.assertNotInvoked();
5053	+	}}
5054	+
5055	+	/**
5056	+	* default-implemented exceptionallyComposeAsync result completes
5057	+	* normally after exceptional completion of source
5058	+	*/
5059	+	public void testDefaultExceptionallyComposeAsyncExecutor_exceptionalCompletion() {
5060	+	for (boolean createIncomplete : new boolean[] { true, false })
5061	+	{
5062	+	final CFException ex = new CFException();
5063	+	final ExceptionalCompletableFutureFunction r =
5064	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5065	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5066	+	final DelegatedCompletionStage<Integer> d =
5067	+	new DelegatedCompletionStage<Integer>(f);
5068	+	if (!createIncomplete) f.completeExceptionally(ex);
5069	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5070	+	if (createIncomplete) f.completeExceptionally(ex);
5071	+
5072	+	checkCompletedExceptionally(f, ex);
5073	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5074	+	r.assertInvoked();
5075	+	}}
5076	+
5077	+	/**
5078	+	* default-implemented exceptionallyComposeAsync completes
5079	+	* exceptionally on exception if action does
5080	+	*/
5081	+	public void testDefaultExceptionallyComposeAsyncExecutor_actionFailed() {
5082	+	for (boolean createIncomplete : new boolean[] { true, false })
5083	+	{
5084	+	final CFException ex = new CFException();
5085	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5086	+	final FailingExceptionalCompletableFutureFunction r
5087	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5088	+	final DelegatedCompletionStage<Integer> d =
5089	+	new DelegatedCompletionStage<Integer>(f);
5090	+	if (!createIncomplete) f.completeExceptionally(ex);
5091	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5092	+	if (createIncomplete) f.completeExceptionally(ex);
5093	+
5094	+	checkCompletedExceptionally(f, ex);
5095	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5096	+	r.assertInvoked();
5097	+	}}
5098	+
5099		}

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