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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.163 by jsr166, Sun Jul 3 18:33:17 2016 UTC vs.
Revision 1.221 by jsr166, Fri Feb 22 19:27:47 2019 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<>();
536	<	assertTrue(f.complete(inc(x)));
537	<	return f;
554	>	return CompletableFuture.completedFuture(inc(x));
555		}
556		}
557
558	<	class FailingCompletableFutureFunction extends CheckedIntegerAction
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	>	static class FailingCompletableFutureFunction extends CheckedIntegerAction
580		implements Function<Integer, CompletableFuture<Integer>>
581		{
582		final CFException ex;
#	Line 653 | 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		},
657	–
704		ASYNC {
705		public void checkExecutionMode() {
706		assertEquals(defaultExecutorIsCommonPool,
#	Line 727 | 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 800 | 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 842 | 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 849 | 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		{
929	<	final AtomicInteger a = new AtomicInteger(0);
929	>	final AtomicInteger ran = new AtomicInteger(0);
930		final CompletableFuture<Integer> f = new CompletableFuture<>();
931		if (!createIncomplete) assertTrue(f.complete(v1));
932	<	final CompletableFuture<Integer> g = f.exceptionally
933	<	((Throwable t) -> {
934	<	a.getAndIncrement();
935	<	threadFail("should not be called");
862	<	return null;            // unreached
932	>	final CompletableFuture<Integer> g = m.exceptionally
933	>	(f, (Throwable t) -> {
934	>	ran.getAndIncrement();
935	>	throw new AssertionError("should not be called");
936		});
937		if (createIncomplete) assertTrue(f.complete(v1));
938
939		checkCompletedNormally(g, v1);
940		checkCompletedNormally(f, v1);
941	<	assertEquals(0, a.get());
941	>	assertEquals(0, ran.get());
942		}}
943
944		/**
#	Line 873 | Line 946 | public class CompletableFutureTest exten
946		* exception
947		*/
948		public void testExceptionally_exceptionalCompletion() {
949	+	for (ExecutionMode m : ExecutionMode.values())
950		for (boolean createIncomplete : new boolean[] { true, false })
951		for (Integer v1 : new Integer[] { 1, null })
952		{
953	<	final AtomicInteger a = new AtomicInteger(0);
953	>	final AtomicInteger ran = new AtomicInteger(0);
954		final CFException ex = new CFException();
955		final CompletableFuture<Integer> f = new CompletableFuture<>();
956		if (!createIncomplete) f.completeExceptionally(ex);
957	<	final CompletableFuture<Integer> g = f.exceptionally
958	<	((Throwable t) -> {
959	<	ExecutionMode.SYNC.checkExecutionMode();
960	<	threadAssertSame(t, ex);
961	<	a.getAndIncrement();
957	>	final CompletableFuture<Integer> g = m.exceptionally
958	>	(f, (Throwable t) -> {
959	>	m.checkExecutionMode();
960	>	assertSame(t, ex);
961	>	ran.getAndIncrement();
962		return v1;
963		});
964		if (createIncomplete) f.completeExceptionally(ex);
965
966		checkCompletedNormally(g, v1);
967	<	assertEquals(1, a.get());
967	>	assertEquals(1, ran.get());
968		}}
969
970		/**
#	Line 898 | Line 972 | public class CompletableFutureTest exten
972		* exceptionally with that exception
973		*/
974		public void testExceptionally_exceptionalCompletionActionFailed() {
975	+	for (ExecutionMode m : ExecutionMode.values())
976		for (boolean createIncomplete : new boolean[] { true, false })
977		{
978	<	final AtomicInteger a = new AtomicInteger(0);
978	>	final AtomicInteger ran = new AtomicInteger(0);
979		final CFException ex1 = new CFException();
980		final CFException ex2 = new CFException();
981		final CompletableFuture<Integer> f = new CompletableFuture<>();
982		if (!createIncomplete) f.completeExceptionally(ex1);
983	<	final CompletableFuture<Integer> g = f.exceptionally
984	<	((Throwable t) -> {
985	<	ExecutionMode.SYNC.checkExecutionMode();
986	<	threadAssertSame(t, ex1);
987	<	a.getAndIncrement();
983	>	final CompletableFuture<Integer> g = m.exceptionally
984	>	(f, (Throwable t) -> {
985	>	m.checkExecutionMode();
986	>	assertSame(t, ex1);
987	>	ran.getAndIncrement();
988		throw ex2;
989		});
990		if (createIncomplete) f.completeExceptionally(ex1);
991
992		checkCompletedWithWrappedException(g, ex2);
993		checkCompletedExceptionally(f, ex1);
994	<	assertEquals(1, a.get());
994	>	assertEquals(1, ran.get());
995		}}
996
997		/**
#	Line 928 | Line 1003 | public class CompletableFutureTest exten
1003		for (boolean createIncomplete : new boolean[] { true, false })
1004		for (Integer v1 : new Integer[] { 1, null })
1005		{
1006	<	final AtomicInteger a = new AtomicInteger(0);
1006	>	final AtomicInteger ran = new AtomicInteger(0);
1007		final CompletableFuture<Integer> f = new CompletableFuture<>();
1008		if (!createIncomplete) assertTrue(f.complete(v1));
1009		final CompletableFuture<Integer> g = m.whenComplete
1010		(f,
1011		(Integer result, Throwable t) -> {
1012		m.checkExecutionMode();
1013	<	threadAssertSame(result, v1);
1014	<	threadAssertNull(t);
1015	<	a.getAndIncrement();
1013	>	assertSame(result, v1);
1014	>	assertNull(t);
1015	>	ran.getAndIncrement();
1016		});
1017		if (createIncomplete) assertTrue(f.complete(v1));
1018
1019		checkCompletedNormally(g, v1);
1020		checkCompletedNormally(f, v1);
1021	<	assertEquals(1, a.get());
1021	>	assertEquals(1, ran.get());
1022		}}
1023
1024		/**
#	Line 954 | Line 1029 | public class CompletableFutureTest exten
1029		for (ExecutionMode m : ExecutionMode.values())
1030		for (boolean createIncomplete : new boolean[] { true, false })
1031		{
1032	<	final AtomicInteger a = new AtomicInteger(0);
1032	>	final AtomicInteger ran = new AtomicInteger(0);
1033		final CFException ex = new CFException();
1034		final CompletableFuture<Integer> f = new CompletableFuture<>();
1035		if (!createIncomplete) f.completeExceptionally(ex);
#	Line 962 | Line 1037 | public class CompletableFutureTest exten
1037		(f,
1038		(Integer result, Throwable t) -> {
1039		m.checkExecutionMode();
1040	<	threadAssertNull(result);
1041	<	threadAssertSame(t, ex);
1042	<	a.getAndIncrement();
1040	>	assertNull(result);
1041	>	assertSame(t, ex);
1042	>	ran.getAndIncrement();
1043		});
1044		if (createIncomplete) f.completeExceptionally(ex);
1045
1046		checkCompletedWithWrappedException(g, ex);
1047		checkCompletedExceptionally(f, ex);
1048	<	assertEquals(1, a.get());
1048	>	assertEquals(1, ran.get());
1049		}}
1050
1051		/**
#	Line 982 | Line 1057 | public class CompletableFutureTest exten
1057		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1058		for (boolean createIncomplete : new boolean[] { true, false })
1059		{
1060	<	final AtomicInteger a = new AtomicInteger(0);
1060	>	final AtomicInteger ran = new AtomicInteger(0);
1061		final CompletableFuture<Integer> f = new CompletableFuture<>();
1062		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1063		final CompletableFuture<Integer> g = m.whenComplete
1064		(f,
1065		(Integer result, Throwable t) -> {
1066		m.checkExecutionMode();
1067	<	threadAssertNull(result);
1068	<	threadAssertTrue(t instanceof CancellationException);
1069	<	a.getAndIncrement();
1067	>	assertNull(result);
1068	>	assertTrue(t instanceof CancellationException);
1069	>	ran.getAndIncrement();
1070		});
1071		if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1072
1073		checkCompletedWithWrappedCancellationException(g);
1074		checkCancelled(f);
1075	<	assertEquals(1, a.get());
1075	>	assertEquals(1, ran.get());
1076		}}
1077
1078		/**
#	Line 1009 | Line 1084 | public class CompletableFutureTest exten
1084		for (ExecutionMode m : ExecutionMode.values())
1085		for (Integer v1 : new Integer[] { 1, null })
1086		{
1087	<	final AtomicInteger a = new AtomicInteger(0);
1087	>	final AtomicInteger ran = new AtomicInteger(0);
1088		final CFException ex = new CFException();
1089		final CompletableFuture<Integer> f = new CompletableFuture<>();
1090		if (!createIncomplete) assertTrue(f.complete(v1));
#	Line 1017 | Line 1092 | public class CompletableFutureTest exten
1092		(f,
1093		(Integer result, Throwable t) -> {
1094		m.checkExecutionMode();
1095	<	threadAssertSame(result, v1);
1096	<	threadAssertNull(t);
1097	<	a.getAndIncrement();
1095	>	assertSame(result, v1);
1096	>	assertNull(t);
1097	>	ran.getAndIncrement();
1098		throw ex;
1099		});
1100		if (createIncomplete) assertTrue(f.complete(v1));
1101
1102		checkCompletedWithWrappedException(g, ex);
1103		checkCompletedNormally(f, v1);
1104	<	assertEquals(1, a.get());
1104	>	assertEquals(1, ran.get());
1105		}}
1106
1107		/**
#	Line 1038 | Line 1113 | public class CompletableFutureTest exten
1113		for (boolean createIncomplete : new boolean[] { true, false })
1114		for (ExecutionMode m : ExecutionMode.values())
1115		{
1116	<	final AtomicInteger a = new AtomicInteger(0);
1116	>	final AtomicInteger ran = new AtomicInteger(0);
1117		final CFException ex1 = new CFException();
1118		final CFException ex2 = new CFException();
1119		final CompletableFuture<Integer> f = new CompletableFuture<>();
#	Line 1048 | Line 1123 | public class CompletableFutureTest exten
1123		(f,
1124		(Integer result, Throwable t) -> {
1125		m.checkExecutionMode();
1126	<	threadAssertSame(t, ex1);
1127	<	threadAssertNull(result);
1128	<	a.getAndIncrement();
1126	>	assertSame(t, ex1);
1127	>	assertNull(result);
1128	>	ran.getAndIncrement();
1129		throw ex2;
1130		});
1131		if (createIncomplete) f.completeExceptionally(ex1);
#	Line 1061 | Line 1136 | public class CompletableFutureTest exten
1136		assertEquals(1, ex1.getSuppressed().length);
1137		assertSame(ex2, ex1.getSuppressed()[0]);
1138		}
1139	<	assertEquals(1, a.get());
1139	>	assertEquals(1, ran.get());
1140		}}
1141
1142		/**
#	Line 1074 | Line 1149 | public class CompletableFutureTest exten
1149		for (Integer v1 : new Integer[] { 1, null })
1150		{
1151		final CompletableFuture<Integer> f = new CompletableFuture<>();
1152	<	final AtomicInteger a = new AtomicInteger(0);
1152	>	final AtomicInteger ran = new AtomicInteger(0);
1153		if (!createIncomplete) assertTrue(f.complete(v1));
1154		final CompletableFuture<Integer> g = m.handle
1155		(f,
1156		(Integer result, Throwable t) -> {
1157		m.checkExecutionMode();
1158	<	threadAssertSame(result, v1);
1159	<	threadAssertNull(t);
1160	<	a.getAndIncrement();
1158	>	assertSame(result, v1);
1159	>	assertNull(t);
1160	>	ran.getAndIncrement();
1161		return inc(v1);
1162		});
1163		if (createIncomplete) assertTrue(f.complete(v1));
1164
1165		checkCompletedNormally(g, inc(v1));
1166		checkCompletedNormally(f, v1);
1167	<	assertEquals(1, a.get());
1167	>	assertEquals(1, ran.get());
1168		}}
1169
1170		/**
#	Line 1102 | Line 1177 | public class CompletableFutureTest exten
1177		for (Integer v1 : new Integer[] { 1, null })
1178		{
1179		final CompletableFuture<Integer> f = new CompletableFuture<>();
1180	<	final AtomicInteger a = new AtomicInteger(0);
1180	>	final AtomicInteger ran = new AtomicInteger(0);
1181		final CFException ex = new CFException();
1182		if (!createIncomplete) f.completeExceptionally(ex);
1183		final CompletableFuture<Integer> g = m.handle
1184		(f,
1185		(Integer result, Throwable t) -> {
1186		m.checkExecutionMode();
1187	<	threadAssertNull(result);
1188	<	threadAssertSame(t, ex);
1189	<	a.getAndIncrement();
1187	>	assertNull(result);
1188	>	assertSame(t, ex);
1189	>	ran.getAndIncrement();
1190		return v1;
1191		});
1192		if (createIncomplete) f.completeExceptionally(ex);
1193
1194		checkCompletedNormally(g, v1);
1195		checkCompletedExceptionally(f, ex);
1196	<	assertEquals(1, a.get());
1196	>	assertEquals(1, ran.get());
1197		}}
1198
1199		/**
#	Line 1132 | Line 1207 | public class CompletableFutureTest exten
1207		for (Integer v1 : new Integer[] { 1, null })
1208		{
1209		final CompletableFuture<Integer> f = new CompletableFuture<>();
1210	<	final AtomicInteger a = new AtomicInteger(0);
1210	>	final AtomicInteger ran = new AtomicInteger(0);
1211		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1212		final CompletableFuture<Integer> g = m.handle
1213		(f,
1214		(Integer result, Throwable t) -> {
1215		m.checkExecutionMode();
1216	<	threadAssertNull(result);
1217	<	threadAssertTrue(t instanceof CancellationException);
1218	<	a.getAndIncrement();
1216	>	assertNull(result);
1217	>	assertTrue(t instanceof CancellationException);
1218	>	ran.getAndIncrement();
1219		return v1;
1220		});
1221		if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1222
1223		checkCompletedNormally(g, v1);
1224		checkCancelled(f);
1225	<	assertEquals(1, a.get());
1225	>	assertEquals(1, ran.get());
1226		}}
1227
1228		/**
#	Line 1160 | Line 1235 | public class CompletableFutureTest exten
1235		for (Integer v1 : new Integer[] { 1, null })
1236		{
1237		final CompletableFuture<Integer> f = new CompletableFuture<>();
1238	<	final AtomicInteger a = new AtomicInteger(0);
1238	>	final AtomicInteger ran = new AtomicInteger(0);
1239		final CFException ex = new CFException();
1240		if (!createIncomplete) assertTrue(f.complete(v1));
1241		final CompletableFuture<Integer> g = m.handle
1242		(f,
1243		(Integer result, Throwable t) -> {
1244		m.checkExecutionMode();
1245	<	threadAssertSame(result, v1);
1246	<	threadAssertNull(t);
1247	<	a.getAndIncrement();
1245	>	assertSame(result, v1);
1246	>	assertNull(t);
1247	>	ran.getAndIncrement();
1248		throw ex;
1249		});
1250		if (createIncomplete) assertTrue(f.complete(v1));
1251
1252		checkCompletedWithWrappedException(g, ex);
1253		checkCompletedNormally(f, v1);
1254	<	assertEquals(1, a.get());
1254	>	assertEquals(1, ran.get());
1255		}}
1256
1257		/**
#	Line 1188 | Line 1263 | public class CompletableFutureTest exten
1263		for (boolean createIncomplete : new boolean[] { true, false })
1264		for (ExecutionMode m : ExecutionMode.values())
1265		{
1266	<	final AtomicInteger a = new AtomicInteger(0);
1266	>	final AtomicInteger ran = new AtomicInteger(0);
1267		final CFException ex1 = new CFException();
1268		final CFException ex2 = new CFException();
1269		final CompletableFuture<Integer> f = new CompletableFuture<>();
#	Line 1198 | Line 1273 | public class CompletableFutureTest exten
1273		(f,
1274		(Integer result, Throwable t) -> {
1275		m.checkExecutionMode();
1276	<	threadAssertNull(result);
1277	<	threadAssertSame(ex1, t);
1278	<	a.getAndIncrement();
1276	>	assertNull(result);
1277	>	assertSame(ex1, t);
1278	>	ran.getAndIncrement();
1279		throw ex2;
1280		});
1281		if (createIncomplete) f.completeExceptionally(ex1);
1282
1283		checkCompletedWithWrappedException(g, ex2);
1284		checkCompletedExceptionally(f, ex1);
1285	<	assertEquals(1, a.get());
1285	>	assertEquals(1, ran.get());
1286		}}
1287
1288		/**
#	Line 1243 | Line 1318 | public class CompletableFutureTest exten
1318		r.assertInvoked();
1319		}}
1320
1321	+	@SuppressWarnings("FutureReturnValueIgnored")
1322		public void testRunAsync_rejectingExecutor() {
1323		CountingRejectingExecutor e = new CountingRejectingExecutor();
1324		try {
#	Line 1289 | Line 1365 | public class CompletableFutureTest exten
1365		r.assertInvoked();
1366		}}
1367
1368	+	@SuppressWarnings("FutureReturnValueIgnored")
1369		public void testSupplyAsync_rejectingExecutor() {
1370		CountingRejectingExecutor e = new CountingRejectingExecutor();
1371		try {
#	Line 2563 | Line 2640 | public class CompletableFutureTest exten
2640
2641		// unspecified behavior - both source completions available
2642		try {
2643	<	assertEquals(null, h0.join());
2643	>	assertNull(h0.join());
2644		rs[0].assertValue(v1);
2645		} catch (CompletionException ok) {
2646		checkCompletedWithWrappedException(h0, ex);
2647		rs[0].assertNotInvoked();
2648		}
2649		try {
2650	<	assertEquals(null, h1.join());
2650	>	assertNull(h1.join());
2651		rs[1].assertValue(v1);
2652		} catch (CompletionException ok) {
2653		checkCompletedWithWrappedException(h1, ex);
2654		rs[1].assertNotInvoked();
2655		}
2656		try {
2657	<	assertEquals(null, h2.join());
2657	>	assertNull(h2.join());
2658		rs[2].assertValue(v1);
2659		} catch (CompletionException ok) {
2660		checkCompletedWithWrappedException(h2, ex);
2661		rs[2].assertNotInvoked();
2662		}
2663		try {
2664	<	assertEquals(null, h3.join());
2664	>	assertNull(h3.join());
2665		rs[3].assertValue(v1);
2666		} catch (CompletionException ok) {
2667		checkCompletedWithWrappedException(h3, ex);
#	Line 2823 | Line 2900 | public class CompletableFutureTest exten
2900
2901		// unspecified behavior - both source completions available
2902		try {
2903	<	assertEquals(null, h0.join());
2903	>	assertNull(h0.join());
2904		rs[0].assertInvoked();
2905		} catch (CompletionException ok) {
2906		checkCompletedWithWrappedException(h0, ex);
2907		rs[0].assertNotInvoked();
2908		}
2909		try {
2910	<	assertEquals(null, h1.join());
2910	>	assertNull(h1.join());
2911		rs[1].assertInvoked();
2912		} catch (CompletionException ok) {
2913		checkCompletedWithWrappedException(h1, ex);
2914		rs[1].assertNotInvoked();
2915		}
2916		try {
2917	<	assertEquals(null, h2.join());
2917	>	assertNull(h2.join());
2918		rs[2].assertInvoked();
2919		} catch (CompletionException ok) {
2920		checkCompletedWithWrappedException(h2, ex);
2921		rs[2].assertNotInvoked();
2922		}
2923		try {
2924	<	assertEquals(null, h3.join());
2924	>	assertNull(h3.join());
2925		rs[3].assertInvoked();
2926		} catch (CompletionException ok) {
2927		checkCompletedWithWrappedException(h3, ex);
#	Line 3041 | Line 3118 | public class CompletableFutureTest exten
3118		case 0:
3119		assertTrue(f.complete(v1));
3120		assertTrue(g.completeExceptionally(ex));
3121	<	h = m.thenCompose(f, (x -> g));
3121	>	h = m.thenCompose(f, x -> g);
3122		break;
3123		case 1:
3124		assertTrue(f.complete(v1));
3125	<	h = m.thenCompose(f, (x -> g));
3125	>	h = m.thenCompose(f, x -> g);
3126		assertTrue(g.completeExceptionally(ex));
3127		break;
3128		case 2:
3129		assertTrue(g.completeExceptionally(ex));
3130		assertTrue(f.complete(v1));
3131	<	h = m.thenCompose(f, (x -> g));
3131	>	h = m.thenCompose(f, x -> g);
3132		break;
3133		case 3:
3134		assertTrue(g.completeExceptionally(ex));
3135	<	h = m.thenCompose(f, (x -> g));
3135	>	h = m.thenCompose(f, x -> g);
3136		assertTrue(f.complete(v1));
3137		break;
3138		case 4:
3139	<	h = m.thenCompose(f, (x -> g));
3139	>	h = m.thenCompose(f, x -> g);
3140		assertTrue(f.complete(v1));
3141		assertTrue(g.completeExceptionally(ex));
3142		break;
3143		case 5:
3144	<	h = m.thenCompose(f, (x -> g));
3144	>	h = m.thenCompose(f, x -> g);
3145		assertTrue(f.complete(v1));
3146		assertTrue(g.completeExceptionally(ex));
3147		break;
#	Line 3076 | Line 3153 | public class CompletableFutureTest exten
3153		checkCompletedNormally(f, v1);
3154		}}
3155
3156	+	/**
3157	+	* exceptionallyCompose result completes normally after normal
3158	+	* completion of source
3159	+	*/
3160	+	public void testExceptionallyCompose_normalCompletion() {
3161	+	for (ExecutionMode m : ExecutionMode.values())
3162	+	for (boolean createIncomplete : new boolean[] { true, false })
3163	+	for (Integer v1 : new Integer[] { 1, null })
3164	+	{
3165	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3166	+	final ExceptionalCompletableFutureFunction r =
3167	+	new ExceptionalCompletableFutureFunction(m);
3168	+	if (!createIncomplete) assertTrue(f.complete(v1));
3169	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3170	+	if (createIncomplete) assertTrue(f.complete(v1));
3171	+
3172	+	checkCompletedNormally(f, v1);
3173	+	checkCompletedNormally(g, v1);
3174	+	r.assertNotInvoked();
3175	+	}}
3176	+
3177	+	/**
3178	+	* exceptionallyCompose result completes normally after exceptional
3179	+	* completion of source
3180	+	*/
3181	+	public void testExceptionallyCompose_exceptionalCompletion() {
3182	+	for (ExecutionMode m : ExecutionMode.values())
3183	+	for (boolean createIncomplete : new boolean[] { true, false })
3184	+	{
3185	+	final CFException ex = new CFException();
3186	+	final ExceptionalCompletableFutureFunction r =
3187	+	new ExceptionalCompletableFutureFunction(m);
3188	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3189	+	if (!createIncomplete) f.completeExceptionally(ex);
3190	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3191	+	if (createIncomplete) f.completeExceptionally(ex);
3192	+
3193	+	checkCompletedExceptionally(f, ex);
3194	+	checkCompletedNormally(g, r.value);
3195	+	r.assertInvoked();
3196	+	}}
3197	+
3198	+	/**
3199	+	* exceptionallyCompose completes exceptionally on exception if action does
3200	+	*/
3201	+	public void testExceptionallyCompose_actionFailed() {
3202	+	for (ExecutionMode m : ExecutionMode.values())
3203	+	for (boolean createIncomplete : new boolean[] { true, false })
3204	+	{
3205	+	final CFException ex = new CFException();
3206	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3207	+	final FailingExceptionalCompletableFutureFunction r
3208	+	= new FailingExceptionalCompletableFutureFunction(m);
3209	+	if (!createIncomplete) f.completeExceptionally(ex);
3210	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3211	+	if (createIncomplete) f.completeExceptionally(ex);
3212	+
3213	+	checkCompletedExceptionally(f, ex);
3214	+	checkCompletedWithWrappedException(g, r.ex);
3215	+	r.assertInvoked();
3216	+	}}
3217	+
3218	+	/**
3219	+	* exceptionallyCompose result completes exceptionally if the
3220	+	* result of the action does
3221	+	*/
3222	+	public void testExceptionallyCompose_actionReturnsFailingFuture() {
3223	+	for (ExecutionMode m : ExecutionMode.values())
3224	+	for (int order = 0; order < 6; order++)
3225	+	{
3226	+	final CFException ex0 = new CFException();
3227	+	final CFException ex = new CFException();
3228	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3229	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
3230	+	final CompletableFuture<Integer> h;
3231	+	// Test all permutations of orders
3232	+	switch (order) {
3233	+	case 0:
3234	+	assertTrue(f.completeExceptionally(ex0));
3235	+	assertTrue(g.completeExceptionally(ex));
3236	+	h = m.exceptionallyCompose(f, x -> g);
3237	+	break;
3238	+	case 1:
3239	+	assertTrue(f.completeExceptionally(ex0));
3240	+	h = m.exceptionallyCompose(f, x -> g);
3241	+	assertTrue(g.completeExceptionally(ex));
3242	+	break;
3243	+	case 2:
3244	+	assertTrue(g.completeExceptionally(ex));
3245	+	assertTrue(f.completeExceptionally(ex0));
3246	+	h = m.exceptionallyCompose(f, x -> g);
3247	+	break;
3248	+	case 3:
3249	+	assertTrue(g.completeExceptionally(ex));
3250	+	h = m.exceptionallyCompose(f, x -> g);
3251	+	assertTrue(f.completeExceptionally(ex0));
3252	+	break;
3253	+	case 4:
3254	+	h = m.exceptionallyCompose(f, x -> g);
3255	+	assertTrue(f.completeExceptionally(ex0));
3256	+	assertTrue(g.completeExceptionally(ex));
3257	+	break;
3258	+	case 5:
3259	+	h = m.exceptionallyCompose(f, x -> g);
3260	+	assertTrue(f.completeExceptionally(ex0));
3261	+	assertTrue(g.completeExceptionally(ex));
3262	+	break;
3263	+	default: throw new AssertionError();
3264	+	}
3265	+
3266	+	checkCompletedExceptionally(g, ex);
3267	+	checkCompletedWithWrappedException(h, ex);
3268	+	checkCompletedExceptionally(f, ex0);
3269	+	}}
3270	+
3271		// other static methods
3272
3273		/**
#	Line 3239 | Line 3431 | public class CompletableFutureTest exten
3431		/**
3432		* Completion methods throw NullPointerException with null arguments
3433		*/
3434	+	@SuppressWarnings("FutureReturnValueIgnored")
3435		public void testNPE() {
3436		CompletableFuture<Integer> f = new CompletableFuture<>();
3437		CompletableFuture<Integer> g = new CompletableFuture<>();
3438		CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
3439		ThreadExecutor exec = new ThreadExecutor();
3440
3441	<	Runnable[] throwingActions = {
3441	>	assertThrows(
3442	>	NullPointerException.class,
3443	>
3444		() -> CompletableFuture.supplyAsync(null),
3445		() -> CompletableFuture.supplyAsync(null, exec),
3446		() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
#	Line 3258 | Line 3453 | public class CompletableFutureTest exten
3453
3454		() -> f.thenApply(null),
3455		() -> f.thenApplyAsync(null),
3456	<	() -> f.thenApplyAsync((x) -> x, null),
3456	>	() -> f.thenApplyAsync(x -> x, null),
3457		() -> f.thenApplyAsync(null, exec),
3458
3459		() -> f.thenAccept(null),
3460		() -> f.thenAcceptAsync(null),
3461	<	() -> f.thenAcceptAsync((x) -> {} , null),
3461	>	() -> f.thenAcceptAsync(x -> {} , null),
3462		() -> f.thenAcceptAsync(null, exec),
3463
3464		() -> f.thenRun(null),
#	Line 3298 | Line 3493 | public class CompletableFutureTest exten
3493		() -> f.applyToEither(g, null),
3494		() -> f.applyToEitherAsync(g, null),
3495		() -> f.applyToEitherAsync(g, null, exec),
3496	<	() -> f.applyToEither(nullFuture, (x) -> x),
3497	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x),
3498	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
3499	<	() -> f.applyToEitherAsync(g, (x) -> x, null),
3496	>	() -> f.applyToEither(nullFuture, x -> x),
3497	>	() -> f.applyToEitherAsync(nullFuture, x -> x),
3498	>	() -> f.applyToEitherAsync(nullFuture, x -> x, exec),
3499	>	() -> f.applyToEitherAsync(g, x -> x, null),
3500
3501		() -> f.acceptEither(g, null),
3502		() -> f.acceptEitherAsync(g, null),
3503		() -> f.acceptEitherAsync(g, null, exec),
3504	<	() -> f.acceptEither(nullFuture, (x) -> {}),
3505	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}),
3506	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
3507	<	() -> f.acceptEitherAsync(g, (x) -> {}, null),
3504	>	() -> f.acceptEither(nullFuture, x -> {}),
3505	>	() -> f.acceptEitherAsync(nullFuture, x -> {}),
3506	>	() -> f.acceptEitherAsync(nullFuture, x -> {}, exec),
3507	>	() -> f.acceptEitherAsync(g, x -> {}, null),
3508
3509		() -> f.runAfterEither(g, null),
3510		() -> f.runAfterEitherAsync(g, null),
#	Line 3348 | Line 3543 | public class CompletableFutureTest exten
3543		() -> f.completeOnTimeout(42, 1L, null),
3544
3545		() -> CompletableFuture.failedFuture(null),
3546	<	() -> CompletableFuture.failedStage(null),
3352	<	};
3546	>	() -> CompletableFuture.failedStage(null));
3547
3354	–	assertThrows(NullPointerException.class, throwingActions);
3548		assertEquals(0, exec.count.get());
3549		}
3550
#	Line 3375 | Line 3568 | public class CompletableFutureTest exten
3568		for (CompletableFuture<Integer> src : srcs) {
3569		List<CompletableFuture<?>> fs = new ArrayList<>();
3570		fs.add(src.thenRunAsync(() -> {}, e));
3571	<	fs.add(src.thenAcceptAsync((z) -> {}, e));
3572	<	fs.add(src.thenApplyAsync((z) -> z, e));
3571	>	fs.add(src.thenAcceptAsync(z -> {}, e));
3572	>	fs.add(src.thenApplyAsync(z -> z, e));
3573
3574		fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3575		fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3576		fs.add(src.runAfterBothAsync(src, () -> {}, e));
3577
3578	<	fs.add(src.applyToEitherAsync(src, (z) -> z, e));
3579	<	fs.add(src.acceptEitherAsync(src, (z) -> {}, e));
3578	>	fs.add(src.applyToEitherAsync(src, z -> z, e));
3579	>	fs.add(src.acceptEitherAsync(src, z -> {}, e));
3580		fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3581
3582	<	fs.add(src.thenComposeAsync((z) -> null, e));
3582	>	fs.add(src.thenComposeAsync(z -> null, e));
3583		fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3584		fs.add(src.handleAsync((z, t) -> null, e));
3585
#	Line 3419 | Line 3612 | public class CompletableFutureTest exten
3612		{
3613		List<CompletableFuture<?>> fs = new ArrayList<>();
3614
3615	<	fs.add(complete.applyToEitherAsync(incomplete, (z) -> z, e));
3616	<	fs.add(incomplete.applyToEitherAsync(complete, (z) -> z, e));
3615	>	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3616	>	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3617
3618	<	fs.add(complete.acceptEitherAsync(incomplete, (z) -> {}, e));
3619	<	fs.add(incomplete.acceptEitherAsync(complete, (z) -> {}, e));
3618	>	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3619	>	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3620
3621		fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3622		fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
#	Line 3454 | Line 3647 | public class CompletableFutureTest exten
3647		final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3648		final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3649
3457	–	List<CompletableFuture<?>> futures = new ArrayList<>();
3458	–
3459	–	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3460	–	srcs.add(complete);
3461	–	srcs.add(incomplete);
3462	–
3650		List<CompletableFuture<?>> fs = new ArrayList<>();
3651		fs.add(incomplete.thenRunAsync(() -> {}, e));
3652	<	fs.add(incomplete.thenAcceptAsync((z) -> {}, e));
3653	<	fs.add(incomplete.thenApplyAsync((z) -> z, e));
3652	>	fs.add(incomplete.thenAcceptAsync(z -> {}, e));
3653	>	fs.add(incomplete.thenApplyAsync(z -> z, e));
3654
3655		fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3656		fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3657		fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3658
3659	<	fs.add(incomplete.applyToEitherAsync(incomplete, (z) -> z, e));
3660	<	fs.add(incomplete.acceptEitherAsync(incomplete, (z) -> {}, e));
3659	>	fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e));
3660	>	fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e));
3661		fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3662
3663	<	fs.add(incomplete.thenComposeAsync((z) -> null, e));
3663	>	fs.add(incomplete.thenComposeAsync(z -> null, e));
3664		fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3665		fs.add(incomplete.handleAsync((z, t) -> null, e));
3666
#	Line 3533 | Line 3720 | public class CompletableFutureTest exten
3720		*/
3721		public void testCompletedStage() {
3722		AtomicInteger x = new AtomicInteger(0);
3723	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3723	>	AtomicReference<Throwable> r = new AtomicReference<>();
3724		CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3725		f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3726		assertEquals(x.get(), 1);
#	Line 3578 | Line 3765 | public class CompletableFutureTest exten
3765		* copy returns a CompletableFuture that is completed normally,
3766		* with the same value, when source is.
3767		*/
3768	<	public void testCopy() {
3768	>	public void testCopy_normalCompletion() {
3769	>	for (boolean createIncomplete : new boolean[] { true, false })
3770	>	for (Integer v1 : new Integer[] { 1, null })
3771	>	{
3772		CompletableFuture<Integer> f = new CompletableFuture<>();
3773	+	if (!createIncomplete) assertTrue(f.complete(v1));
3774		CompletableFuture<Integer> g = f.copy();
3775	<	checkIncomplete(f);
3776	<	checkIncomplete(g);
3777	<	f.complete(1);
3778	<	checkCompletedNormally(f, 1);
3779	<	checkCompletedNormally(g, 1);
3780	<	}
3775	>	if (createIncomplete) {
3776	>	checkIncomplete(f);
3777	>	checkIncomplete(g);
3778	>	assertTrue(f.complete(v1));
3779	>	}
3780	>	checkCompletedNormally(f, v1);
3781	>	checkCompletedNormally(g, v1);
3782	>	}}
3783
3784		/**
3785		* copy returns a CompletableFuture that is completed exceptionally
3786		* when source is.
3787		*/
3788	<	public void testCopy2() {
3788	>	public void testCopy_exceptionalCompletion() {
3789	>	for (boolean createIncomplete : new boolean[] { true, false })
3790	>	{
3791	>	CFException ex = new CFException();
3792		CompletableFuture<Integer> f = new CompletableFuture<>();
3793	+	if (!createIncomplete) f.completeExceptionally(ex);
3794		CompletableFuture<Integer> g = f.copy();
3795	<	checkIncomplete(f);
3796	<	checkIncomplete(g);
3797	<	CFException ex = new CFException();
3798	<	f.completeExceptionally(ex);
3795	>	if (createIncomplete) {
3796	>	checkIncomplete(f);
3797	>	checkIncomplete(g);
3798	>	f.completeExceptionally(ex);
3799	>	}
3800		checkCompletedExceptionally(f, ex);
3801		checkCompletedWithWrappedException(g, ex);
3802	+	}}
3803	+
3804	+	/**
3805	+	* Completion of a copy does not complete its source.
3806	+	*/
3807	+	public void testCopy_oneWayPropagation() {
3808	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3809	+	assertTrue(f.copy().complete(1));
3810	+	assertTrue(f.copy().complete(null));
3811	+	assertTrue(f.copy().cancel(true));
3812	+	assertTrue(f.copy().cancel(false));
3813	+	assertTrue(f.copy().completeExceptionally(new CFException()));
3814	+	checkIncomplete(f);
3815		}
3816
3817		/**
#	Line 3611 | Line 3822 | public class CompletableFutureTest exten
3822		CompletableFuture<Integer> f = new CompletableFuture<>();
3823		CompletionStage<Integer> g = f.minimalCompletionStage();
3824		AtomicInteger x = new AtomicInteger(0);
3825	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3825	>	AtomicReference<Throwable> r = new AtomicReference<>();
3826		checkIncomplete(f);
3827		g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3828		f.complete(1);
#	Line 3628 | Line 3839 | public class CompletableFutureTest exten
3839		CompletableFuture<Integer> f = new CompletableFuture<>();
3840		CompletionStage<Integer> g = f.minimalCompletionStage();
3841		AtomicInteger x = new AtomicInteger(0);
3842	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3842	>	AtomicReference<Throwable> r = new AtomicReference<>();
3843		g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3844		checkIncomplete(f);
3845		CFException ex = new CFException();
#	Line 3646 | Line 3857 | public class CompletableFutureTest exten
3857		CFException ex = new CFException();
3858		CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3859		AtomicInteger x = new AtomicInteger(0);
3860	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3860	>	AtomicReference<Throwable> r = new AtomicReference<>();
3861		f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3862		assertEquals(x.get(), 0);
3863		assertEquals(r.get(), ex);
#	Line 3670 | Line 3881 | public class CompletableFutureTest exten
3881		public void testCompleteAsync2() {
3882		CompletableFuture<Integer> f = new CompletableFuture<>();
3883		CFException ex = new CFException();
3884	<	f.completeAsync(() -> {if (true) throw ex; return 1;});
3884	>	f.completeAsync(() -> { throw ex; });
3885		try {
3886		f.join();
3887		shouldThrow();
#	Line 3700 | Line 3911 | public class CompletableFutureTest exten
3911		CompletableFuture<Integer> f = new CompletableFuture<>();
3912		CFException ex = new CFException();
3913		ThreadExecutor executor = new ThreadExecutor();
3914	<	f.completeAsync(() -> {if (true) throw ex; return 1;}, executor);
3914	>	f.completeAsync(() -> { throw ex; }, executor);
3915		try {
3916		f.join();
3917		shouldThrow();
#	Line 3852 | Line 4063 | public class CompletableFutureTest exten
4063		final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
4064		final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4065
4066	+	final Runnable noopRunnable = new Noop(m);
4067	+	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
4068	+	final Function<Integer, Integer> incFunction = new IncFunction(m);
4069	+
4070		List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
4071		= new ArrayList<>();
4072
4073	<	funs.add((y) -> m.thenRun(y, new Noop(m)));
4074	<	funs.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
4075	<	funs.add((y) -> m.thenApply(y, new IncFunction(m)));
4076	<
4077	<	funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
4078	<	funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
4079	<	funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
4080	<
4081	<	funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
4082	<	funs.add((y) -> m.runAfterBoth(v42, y, new Noop(m)));
4083	<	funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4084	<	funs.add((y) -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
4085	<	funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
4086	<	funs.add((y) -> m.thenCombine(v42, y, new SubtractFunction(m)));
4087	<
4088	<	funs.add((y) -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
4089	<
4090	<	funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
4091	<
4092	<	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y}));
4093	<	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
4094	<	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {v42, y}));
4095	<	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y}));
4096	<	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
4097	<	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {incomplete, y}));
4073	>	funs.add(y -> m.thenRun(y, noopRunnable));
4074	>	funs.add(y -> m.thenAccept(y, noopConsumer));
4075	>	funs.add(y -> m.thenApply(y, incFunction));
4076	>
4077	>	funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable));
4078	>	funs.add(y -> m.acceptEither(y, incomplete, noopConsumer));
4079	>	funs.add(y -> m.applyToEither(y, incomplete, incFunction));
4080	>
4081	>	funs.add(y -> m.runAfterBoth(y, v42, noopRunnable));
4082	>	funs.add(y -> m.runAfterBoth(v42, y, noopRunnable));
4083	>	funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4084	>	funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
4085	>	funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m)));
4086	>	funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m)));
4087	>
4088	>	funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
4089	>
4090	>	funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m)));
4091	>
4092	>	funs.add(y -> CompletableFuture.allOf(y));
4093	>	funs.add(y -> CompletableFuture.allOf(y, v42));
4094	>	funs.add(y -> CompletableFuture.allOf(v42, y));
4095	>	funs.add(y -> CompletableFuture.anyOf(y));
4096	>	funs.add(y -> CompletableFuture.anyOf(y, incomplete));
4097	>	funs.add(y -> CompletableFuture.anyOf(incomplete, y));
4098
4099		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4100		fun : funs) {
4101		CompletableFuture<Integer> f = new CompletableFuture<>();
4102		f.completeExceptionally(ex);
4103	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4103	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4104		checkCompletedWithWrappedException(src, ex);
4105		CompletableFuture<?> dep = fun.apply(src);
4106		checkCompletedWithWrappedException(dep, ex);
#	Line 3895 | Line 4110 | public class CompletableFutureTest exten
4110		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4111		fun : funs) {
4112		CompletableFuture<Integer> f = new CompletableFuture<>();
4113	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4113	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4114		CompletableFuture<?> dep = fun.apply(src);
4115		f.completeExceptionally(ex);
4116		checkCompletedWithWrappedException(src, ex);
#	Line 3909 | Line 4124 | public class CompletableFutureTest exten
4124		CompletableFuture<Integer> f = new CompletableFuture<>();
4125		f.cancel(mayInterruptIfRunning);
4126		checkCancelled(f);
4127	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4127	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4128		checkCompletedWithWrappedCancellationException(src);
4129		CompletableFuture<?> dep = fun.apply(src);
4130		checkCompletedWithWrappedCancellationException(dep);
#	Line 3920 | Line 4135 | public class CompletableFutureTest exten
4135		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4136		fun : funs) {
4137		CompletableFuture<Integer> f = new CompletableFuture<>();
4138	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4138	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4139		CompletableFuture<?> dep = fun.apply(src);
4140		f.cancel(mayInterruptIfRunning);
4141		checkCancelled(f);
#	Line 3931 | Line 4146 | public class CompletableFutureTest exten
4146		}}
4147
4148		/**
4149	<	* Minimal completion stages throw UOE for all non-CompletionStage methods
4149	>	* Minimal completion stages throw UOE for most non-CompletionStage methods
4150		*/
4151		public void testMinimalCompletionStage_minimality() {
4152		if (!testImplementationDetails) return;
4153		Function<Method, String> toSignature =
4154	<	(method) -> method.getName() + Arrays.toString(method.getParameterTypes());
4154	>	method -> method.getName() + Arrays.toString(method.getParameterTypes());
4155		Predicate<Method> isNotStatic =
4156	<	(method) -> (method.getModifiers() & Modifier.STATIC) == 0;
4156	>	method -> (method.getModifiers() & Modifier.STATIC) == 0;
4157		List<Method> minimalMethods =
4158		Stream.of(Object.class, CompletionStage.class)
4159	<	.flatMap((klazz) -> Stream.of(klazz.getMethods()))
4159	>	.flatMap(klazz -> Stream.of(klazz.getMethods()))
4160		.filter(isNotStatic)
4161		.collect(Collectors.toList());
4162		// Methods from CompletableFuture permitted NOT to throw UOE
#	Line 3957 | Line 4172 | public class CompletableFutureTest exten
4172		.collect(Collectors.toSet());
4173		List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
4174		.filter(isNotStatic)
4175	<	.filter((method) -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4175	>	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4176		.collect(Collectors.toList());
4177
4178	<	CompletionStage<Integer> minimalStage =
4178	>	List<CompletionStage<Integer>> stages = new ArrayList<>();
4179	>	CompletionStage<Integer> min =
4180		new CompletableFuture<Integer>().minimalCompletionStage();
4181	+	stages.add(min);
4182	+	stages.add(min.thenApply(x -> x));
4183	+	stages.add(CompletableFuture.completedStage(1));
4184	+	stages.add(CompletableFuture.failedStage(new CFException()));
4185
4186		List<Method> bugs = new ArrayList<>();
4187		for (Method method : allMethods) {
#	Line 3977 | Line 4197 | public class CompletableFutureTest exten
4197		else if (parameterTypes[i] == long.class)
4198		args[i] = 0L;
4199		}
4200	<	try {
4201	<	method.invoke(minimalStage, args);
4202	<	bugs.add(method);
3983	<	}
3984	<	catch (java.lang.reflect.InvocationTargetException expected) {
3985	<	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4200	>	for (CompletionStage<Integer> stage : stages) {
4201	>	try {
4202	>	method.invoke(stage, args);
4203		bugs.add(method);
3987	–	// expected.getCause().printStackTrace();
4204		}
4205	+	catch (java.lang.reflect.InvocationTargetException expected) {
4206	+	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4207	+	bugs.add(method);
4208	+	// expected.getCause().printStackTrace();
4209	+	}
4210	+	}
4211	+	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4212		}
3990	–	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4213		}
4214		if (!bugs.isEmpty())
4215	<	throw new Error("Methods did not throw UOE: " + bugs.toString());
4215	>	throw new Error("Methods did not throw UOE: " + bugs);
4216		}
4217
4218	+	/**
4219	+	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4220	+	* is completed normally, with the same value, when source is.
4221	+	*/
4222	+	public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() {
4223	+	for (boolean createIncomplete : new boolean[] { true, false })
4224	+	for (Integer v1 : new Integer[] { 1, null })
4225	+	{
4226	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4227	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4228	+	if (!createIncomplete) assertTrue(f.complete(v1));
4229	+	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4230	+	if (createIncomplete) {
4231	+	checkIncomplete(f);
4232	+	checkIncomplete(g);
4233	+	assertTrue(f.complete(v1));
4234	+	}
4235	+	checkCompletedNormally(f, v1);
4236	+	checkCompletedNormally(g, v1);
4237	+	}}
4238	+
4239	+	/**
4240	+	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4241	+	* is completed exceptionally when source is.
4242	+	*/
4243	+	public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() {
4244	+	for (boolean createIncomplete : new boolean[] { true, false })
4245	+	{
4246	+	CFException ex = new CFException();
4247	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4248	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4249	+	if (!createIncomplete) f.completeExceptionally(ex);
4250	+	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4251	+	if (createIncomplete) {
4252	+	checkIncomplete(f);
4253	+	checkIncomplete(g);
4254	+	f.completeExceptionally(ex);
4255	+	}
4256	+	checkCompletedExceptionally(f, ex);
4257	+	checkCompletedWithWrappedException(g, ex);
4258	+	}}
4259	+
4260	+	/**
4261	+	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4262	+	*/
4263	+	public void testMinimalCompletionStage_toCompletableFuture_mutable() {
4264	+	for (Integer v1 : new Integer[] { 1, null })
4265	+	{
4266	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4267	+	CompletionStage minimal = f.minimalCompletionStage();
4268	+	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4269	+	assertTrue(g.complete(v1));
4270	+	checkCompletedNormally(g, v1);
4271	+	checkIncomplete(f);
4272	+	checkIncomplete(minimal.toCompletableFuture());
4273	+	}}
4274	+
4275	+	/**
4276	+	* minimalStage.toCompletableFuture().join() awaits completion
4277	+	*/
4278	+	public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception {
4279	+	for (boolean createIncomplete : new boolean[] { true, false })
4280	+	for (Integer v1 : new Integer[] { 1, null })
4281	+	{
4282	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4283	+	if (!createIncomplete) assertTrue(f.complete(v1));
4284	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4285	+	if (createIncomplete) assertTrue(f.complete(v1));
4286	+	assertEquals(v1, minimal.toCompletableFuture().join());
4287	+	assertEquals(v1, minimal.toCompletableFuture().get());
4288	+	checkCompletedNormally(minimal.toCompletableFuture(), v1);
4289	+	}}
4290	+
4291	+	/**
4292	+	* Completion of a toCompletableFuture copy of a minimal stage
4293	+	* does not complete its source.
4294	+	*/
4295	+	public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() {
4296	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4297	+	CompletionStage<Integer> g = f.minimalCompletionStage();
4298	+	assertTrue(g.toCompletableFuture().complete(1));
4299	+	assertTrue(g.toCompletableFuture().complete(null));
4300	+	assertTrue(g.toCompletableFuture().cancel(true));
4301	+	assertTrue(g.toCompletableFuture().cancel(false));
4302	+	assertTrue(g.toCompletableFuture().completeExceptionally(new CFException()));
4303	+	checkIncomplete(g.toCompletableFuture());
4304	+	f.complete(1);
4305	+	checkCompletedNormally(g.toCompletableFuture(), 1);
4306	+	}
4307	+
4308	+	/** Demo utility method for external reliable toCompletableFuture */
4309	+	static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) {
4310	+	CompletableFuture<T> f = new CompletableFuture<>();
4311	+	stage.handle((T t, Throwable ex) -> {
4312	+	if (ex != null) f.completeExceptionally(ex);
4313	+	else f.complete(t);
4314	+	return null;
4315	+	});
4316	+	return f;
4317	+	}
4318	+
4319	+	/** Demo utility method to join a CompletionStage */
4320	+	static <T> T join(CompletionStage<T> stage) {
4321	+	return toCompletableFuture(stage).join();
4322	+	}
4323	+
4324	+	/**
4325	+	* Joining a minimal stage "by hand" works
4326	+	*/
4327	+	public void testMinimalCompletionStage_join_by_hand() {
4328	+	for (boolean createIncomplete : new boolean[] { true, false })
4329	+	for (Integer v1 : new Integer[] { 1, null })
4330	+	{
4331	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4332	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4333	+	CompletableFuture<Integer> g = new CompletableFuture<>();
4334	+	if (!createIncomplete) assertTrue(f.complete(v1));
4335	+	minimal.thenAccept(x -> g.complete(x));
4336	+	if (createIncomplete) assertTrue(f.complete(v1));
4337	+	g.join();
4338	+	checkCompletedNormally(g, v1);
4339	+	checkCompletedNormally(f, v1);
4340	+	assertEquals(v1, join(minimal));
4341	+	}}
4342	+
4343		static class Monad {
4344		static class ZeroException extends RuntimeException {
4345		public ZeroException() { super("monadic zero"); }
#	Line 4009 | Line 4356 | public class CompletableFutureTest exten
4356		static <T,U,V> Function<T, CompletableFuture<V>> compose
4357		(Function<T, CompletableFuture<U>> f,
4358		Function<U, CompletableFuture<V>> g) {
4359	<	return (x) -> f.apply(x).thenCompose(g);
4359	>	return x -> f.apply(x).thenCompose(g);
4360		}
4361
4362		static void assertZero(CompletableFuture<?> f) {
4363		try {
4364		f.getNow(null);
4365	<	throw new AssertionFailedError("should throw");
4365	>	throw new AssertionError("should throw");
4366		} catch (CompletionException success) {
4367		assertTrue(success.getCause() instanceof ZeroException);
4368		}
#	Line 4089 | Line 4436 | public class CompletableFutureTest exten
4436
4437		// Some mutually non-commutative functions
4438		Function<Long, CompletableFuture<Long>> triple
4439	<	= (x) -> Monad.unit(3 * x);
4439	>	= x -> Monad.unit(3 * x);
4440		Function<Long, CompletableFuture<Long>> inc
4441	<	= (x) -> Monad.unit(x + 1);
4441	>	= x -> Monad.unit(x + 1);
4442
4443		// unit is a right identity: m >>= unit === m
4444		Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
#	Line 4103 | Line 4450 | public class CompletableFutureTest exten
4450		// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4451		Monad.assertFutureEquals(
4452		unit.apply(5L).thenCompose(inc).thenCompose(triple),
4453	<	unit.apply(5L).thenCompose((x) -> inc.apply(x).thenCompose(triple)));
4453	>	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4454
4455		// The case for CompletableFuture as an additive monad is weaker...
4456
#	Line 4113 | Line 4460 | public class CompletableFutureTest exten
4460		// left zero: zero >>= f === zero
4461		Monad.assertZero(zero.thenCompose(inc));
4462		// right zero: f >>= (\x -> zero) === zero
4463	<	Monad.assertZero(inc.apply(5L).thenCompose((x) -> zero));
4463	>	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4464
4465		// f plus zero === f
4466		Monad.assertFutureEquals(Monad.unit(5L),
#	Line 4140 | Line 4487 | public class CompletableFutureTest exten
4487		}
4488
4489		/** Test long recursive chains of CompletableFutures with cascading completions */
4490	+	@SuppressWarnings("FutureReturnValueIgnored")
4491		public void testRecursiveChains() throws Throwable {
4492		for (ExecutionMode m : ExecutionMode.values())
4493		for (boolean addDeadEnds : new boolean[] { true, false })
#	Line 4164 | Line 4512 | public class CompletableFutureTest exten
4512		* A single CompletableFuture with many dependents.
4513		* A demo of scalability - runtime is O(n).
4514		*/
4515	+	@SuppressWarnings("FutureReturnValueIgnored")
4516		public void testManyDependents() throws Throwable {
4517		final int n = expensiveTests ? 1_000_000 : 10;
4518		final CompletableFuture<Void> head = new CompletableFuture<>();
#	Line 4171 | Line 4520 | public class CompletableFutureTest exten
4520		final AtomicInteger count = new AtomicInteger(0);
4521		for (int i = 0; i < n; i++) {
4522		head.thenRun(() -> count.getAndIncrement());
4523	<	head.thenAccept((x) -> count.getAndIncrement());
4524	<	head.thenApply((x) -> count.getAndIncrement());
4523	>	head.thenAccept(x -> count.getAndIncrement());
4524	>	head.thenApply(x -> count.getAndIncrement());
4525
4526		head.runAfterBoth(complete, () -> count.getAndIncrement());
4527		head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
#	Line 4182 | Line 4531 | public class CompletableFutureTest exten
4531		complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4532
4533		head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4534	<	head.acceptEither(new CompletableFuture<Void>(), (x) -> count.getAndIncrement());
4535	<	head.applyToEither(new CompletableFuture<Void>(), (x) -> count.getAndIncrement());
4534	>	head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4535	>	head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4536		new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4537	<	new CompletableFuture<Void>().acceptEither(head, (x) -> count.getAndIncrement());
4538	<	new CompletableFuture<Void>().applyToEither(head, (x) -> count.getAndIncrement());
4537	>	new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement());
4538	>	new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement());
4539		}
4540		head.complete(null);
4541		assertEquals(5 * 3 * n, count.get());
4542		}
4543
4544		/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4545	+	@SuppressWarnings("FutureReturnValueIgnored")
4546		public void testCoCompletionGarbageRetention() throws Throwable {
4547		final int n = expensiveTests ? 1_000_000 : 10;
4548		final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
#	Line 4203 | Line 4553 | public class CompletableFutureTest exten
4553		f.complete(null);
4554
4555		f = new CompletableFuture<>();
4556	<	f.acceptEither(incomplete, (x) -> {});
4556	>	f.acceptEither(incomplete, x -> {});
4557		f.complete(null);
4558
4559		f = new CompletableFuture<>();
4560	<	f.applyToEither(incomplete, (x) -> x);
4560	>	f.applyToEither(incomplete, x -> x);
4561		f.complete(null);
4562
4563		f = new CompletableFuture<>();
4564	<	CompletableFuture.anyOf(new CompletableFuture<?>[] { f, incomplete });
4564	>	CompletableFuture.anyOf(f, incomplete);
4565		f.complete(null);
4566		}
4567
#	Line 4221 | Line 4571 | public class CompletableFutureTest exten
4571		f.complete(null);
4572
4573		f = new CompletableFuture<>();
4574	<	incomplete.acceptEither(f, (x) -> {});
4574	>	incomplete.acceptEither(f, x -> {});
4575		f.complete(null);
4576
4577		f = new CompletableFuture<>();
4578	<	incomplete.applyToEither(f, (x) -> x);
4578	>	incomplete.applyToEither(f, x -> x);
4579		f.complete(null);
4580
4581		f = new CompletableFuture<>();
4582	<	CompletableFuture.anyOf(new CompletableFuture<?>[] { incomplete, f });
4582	>	CompletableFuture.anyOf(incomplete, f);
4583		f.complete(null);
4584		}
4585		}
4586
4587	<	/*
4588	<	* Tests below currently fail in stress mode due to memory retention.
4589	<	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck
4587	>	/**
4588	>	* Reproduction recipe for:
4589	>	* 8160402: Garbage retention with CompletableFuture.anyOf
4590	>	* 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
4591		*/
4241	–
4242	–	/** Checks for garbage retention with anyOf. */
4592		public void testAnyOfGarbageRetention() throws Throwable {
4593		for (Integer v : new Integer[] { 1, null })
4594		{
#	Line 4253 | Line 4602 | public class CompletableFutureTest exten
4602		checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4603		}}
4604
4605	<	/** Checks for garbage retention with allOf. */
4605	>	/**
4606	>	* Checks for garbage retention with allOf.
4607	>	*
4608	>	* As of 2016-07, fails with OOME:
4609	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4610	>	*/
4611		public void testCancelledAllOfGarbageRetention() throws Throwable {
4612		final int n = expensiveTests ? 100_000 : 10;
4613		CompletableFuture<Integer>[] fs
#	Line 4264 | Line 4618 | public class CompletableFutureTest exten
4618		assertTrue(CompletableFuture.allOf(fs).cancel(false));
4619		}
4620
4621	+	/**
4622	+	* Checks for garbage retention when a dependent future is
4623	+	* cancelled and garbage-collected.
4624	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4625	+	*
4626	+	* As of 2016-07, fails with OOME:
4627	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4628	+	*/
4629	+	public void testCancelledGarbageRetention() throws Throwable {
4630	+	final int n = expensiveTests ? 100_000 : 10;
4631	+	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4632	+	for (int i = 0; i < n; i++)
4633	+	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4634	+	}
4635	+
4636	+	/**
4637	+	* Checks for garbage retention when MinimalStage.toCompletableFuture()
4638	+	* is invoked many times.
4639	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4640	+	*
4641	+	* As of 2016-07, fails with OOME:
4642	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck
4643	+	*/
4644	+	public void testToCompletableFutureGarbageRetention() throws Throwable {
4645	+	final int n = expensiveTests ? 900_000 : 10;
4646	+	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4647	+	CompletionStage minimal = neverCompleted.minimalCompletionStage();
4648	+	for (int i = 0; i < n; i++)
4649	+	assertTrue(minimal.toCompletableFuture().cancel(true));
4650	+	}
4651	+
4652		//     static <U> U join(CompletionStage<U> stage) {
4653		//         CompletableFuture<U> f = new CompletableFuture<>();
4654		//         stage.whenComplete((v, ex) -> {
#	Line 4288 | Line 4673 | public class CompletableFutureTest exten
4673		//         return stage.toCompletableFuture().copy().isDone();
4674		//     }
4675
4676	+	// For testing default implementations
4677	+	// Only non-default interface methods defined.
4678	+	static final class DelegatedCompletionStage<T> implements CompletionStage<T> {
4679	+	final CompletableFuture<T> cf;
4680	+	DelegatedCompletionStage(CompletableFuture<T> cf) { this.cf = cf; }
4681	+	public CompletableFuture<T> toCompletableFuture() {
4682	+	return cf; }
4683	+	public CompletionStage<Void> thenRun
4684	+	(Runnable action) {
4685	+	return cf.thenRun(action); }
4686	+	public CompletionStage<Void> thenRunAsync
4687	+	(Runnable action) {
4688	+	return cf.thenRunAsync(action); }
4689	+	public CompletionStage<Void> thenRunAsync
4690	+	(Runnable action,
4691	+	Executor executor) {
4692	+	return cf.thenRunAsync(action, executor); }
4693	+	public CompletionStage<Void> thenAccept
4694	+	(Consumer<? super T> action) {
4695	+	return cf.thenAccept(action); }
4696	+	public CompletionStage<Void> thenAcceptAsync
4697	+	(Consumer<? super T> action) {
4698	+	return cf.thenAcceptAsync(action); }
4699	+	public CompletionStage<Void> thenAcceptAsync
4700	+	(Consumer<? super T> action,
4701	+	Executor executor) {
4702	+	return cf.thenAcceptAsync(action, executor); }
4703	+	public <U> CompletionStage<U> thenApply
4704	+	(Function<? super T,? extends U> a) {
4705	+	return cf.thenApply(a); }
4706	+	public <U> CompletionStage<U> thenApplyAsync
4707	+	(Function<? super T,? extends U> fn) {
4708	+	return cf.thenApplyAsync(fn); }
4709	+	public <U> CompletionStage<U> thenApplyAsync
4710	+	(Function<? super T,? extends U> fn,
4711	+	Executor executor) {
4712	+	return cf.thenApplyAsync(fn, executor); }
4713	+	public <U,V> CompletionStage<V> thenCombine
4714	+	(CompletionStage<? extends U> other,
4715	+	BiFunction<? super T,? super U,? extends V> fn) {
4716	+	return cf.thenCombine(other, fn); }
4717	+	public <U,V> CompletionStage<V> thenCombineAsync
4718	+	(CompletionStage<? extends U> other,
4719	+	BiFunction<? super T,? super U,? extends V> fn) {
4720	+	return cf.thenCombineAsync(other, fn); }
4721	+	public <U,V> CompletionStage<V> thenCombineAsync
4722	+	(CompletionStage<? extends U> other,
4723	+	BiFunction<? super T,? super U,? extends V> fn,
4724	+	Executor executor) {
4725	+	return cf.thenCombineAsync(other, fn, executor); }
4726	+	public <U> CompletionStage<Void> thenAcceptBoth
4727	+	(CompletionStage<? extends U> other,
4728	+	BiConsumer<? super T, ? super U> action) {
4729	+	return cf.thenAcceptBoth(other, action); }
4730	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4731	+	(CompletionStage<? extends U> other,
4732	+	BiConsumer<? super T, ? super U> action) {
4733	+	return cf.thenAcceptBothAsync(other, action); }
4734	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4735	+	(CompletionStage<? extends U> other,
4736	+	BiConsumer<? super T, ? super U> action,
4737	+	Executor executor) {
4738	+	return cf.thenAcceptBothAsync(other, action, executor); }
4739	+	public CompletionStage<Void> runAfterBoth
4740	+	(CompletionStage<?> other,
4741	+	Runnable action) {
4742	+	return cf.runAfterBoth(other, action); }
4743	+	public CompletionStage<Void> runAfterBothAsync
4744	+	(CompletionStage<?> other,
4745	+	Runnable action) {
4746	+	return cf.runAfterBothAsync(other, action); }
4747	+	public CompletionStage<Void> runAfterBothAsync
4748	+	(CompletionStage<?> other,
4749	+	Runnable action,
4750	+	Executor executor) {
4751	+	return cf.runAfterBothAsync(other, action, executor); }
4752	+	public <U> CompletionStage<U> applyToEither
4753	+	(CompletionStage<? extends T> other,
4754	+	Function<? super T, U> fn) {
4755	+	return cf.applyToEither(other, fn); }
4756	+	public <U> CompletionStage<U> applyToEitherAsync
4757	+	(CompletionStage<? extends T> other,
4758	+	Function<? super T, U> fn) {
4759	+	return cf.applyToEitherAsync(other, fn); }
4760	+	public <U> CompletionStage<U> applyToEitherAsync
4761	+	(CompletionStage<? extends T> other,
4762	+	Function<? super T, U> fn,
4763	+	Executor executor) {
4764	+	return cf.applyToEitherAsync(other, fn, executor); }
4765	+	public CompletionStage<Void> acceptEither
4766	+	(CompletionStage<? extends T> other,
4767	+	Consumer<? super T> action) {
4768	+	return cf.acceptEither(other, action); }
4769	+	public CompletionStage<Void> acceptEitherAsync
4770	+	(CompletionStage<? extends T> other,
4771	+	Consumer<? super T> action) {
4772	+	return cf.acceptEitherAsync(other, action); }
4773	+	public CompletionStage<Void> acceptEitherAsync
4774	+	(CompletionStage<? extends T> other,
4775	+	Consumer<? super T> action,
4776	+	Executor executor) {
4777	+	return cf.acceptEitherAsync(other, action, executor); }
4778	+	public CompletionStage<Void> runAfterEither
4779	+	(CompletionStage<?> other,
4780	+	Runnable action) {
4781	+	return cf.runAfterEither(other, action); }
4782	+	public CompletionStage<Void> runAfterEitherAsync
4783	+	(CompletionStage<?> other,
4784	+	Runnable action) {
4785	+	return cf.runAfterEitherAsync(other, action); }
4786	+	public CompletionStage<Void> runAfterEitherAsync
4787	+	(CompletionStage<?> other,
4788	+	Runnable action,
4789	+	Executor executor) {
4790	+	return cf.runAfterEitherAsync(other, action, executor); }
4791	+	public <U> CompletionStage<U> thenCompose
4792	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4793	+	return cf.thenCompose(fn); }
4794	+	public <U> CompletionStage<U> thenComposeAsync
4795	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4796	+	return cf.thenComposeAsync(fn); }
4797	+	public <U> CompletionStage<U> thenComposeAsync
4798	+	(Function<? super T, ? extends CompletionStage<U>> fn,
4799	+	Executor executor) {
4800	+	return cf.thenComposeAsync(fn, executor); }
4801	+	public <U> CompletionStage<U> handle
4802	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4803	+	return cf.handle(fn); }
4804	+	public <U> CompletionStage<U> handleAsync
4805	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4806	+	return cf.handleAsync(fn); }
4807	+	public <U> CompletionStage<U> handleAsync
4808	+	(BiFunction<? super T, Throwable, ? extends U> fn,
4809	+	Executor executor) {
4810	+	return cf.handleAsync(fn, executor); }
4811	+	public CompletionStage<T> whenComplete
4812	+	(BiConsumer<? super T, ? super Throwable> action) {
4813	+	return cf.whenComplete(action); }
4814	+	public CompletionStage<T> whenCompleteAsync
4815	+	(BiConsumer<? super T, ? super Throwable> action) {
4816	+	return cf.whenCompleteAsync(action); }
4817	+	public CompletionStage<T> whenCompleteAsync
4818	+	(BiConsumer<? super T, ? super Throwable> action,
4819	+	Executor executor) {
4820	+	return cf.whenCompleteAsync(action, executor); }
4821	+	public CompletionStage<T> exceptionally
4822	+	(Function<Throwable, ? extends T> fn) {
4823	+	return cf.exceptionally(fn); }
4824	+	}
4825	+
4826	+	/**
4827	+	* default-implemented exceptionallyAsync action is not invoked when
4828	+	* source completes normally, and source result is propagated
4829	+	*/
4830	+	public void testDefaultExceptionallyAsync_normalCompletion() {
4831	+	for (boolean createIncomplete : new boolean[] { true, false })
4832	+	for (Integer v1 : new Integer[] { 1, null })
4833	+	{
4834	+	final AtomicInteger ran = new AtomicInteger(0);
4835	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4836	+	final DelegatedCompletionStage<Integer> d =
4837	+	new DelegatedCompletionStage<Integer>(f);
4838	+	if (!createIncomplete) assertTrue(f.complete(v1));
4839	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4840	+	((Throwable t) -> {
4841	+	ran.getAndIncrement();
4842	+	throw new AssertionError("should not be called");
4843	+	});
4844	+	if (createIncomplete) assertTrue(f.complete(v1));
4845	+
4846	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4847	+	checkCompletedNormally(f, v1);
4848	+	assertEquals(0, ran.get());
4849	+	}}
4850	+
4851	+	/**
4852	+	* default-implemented exceptionallyAsync action completes with
4853	+	* function value on source exception
4854	+	*/
4855	+	public void testDefaultExceptionallyAsync_exceptionalCompletion() {
4856	+	for (boolean createIncomplete : new boolean[] { true, false })
4857	+	for (Integer v1 : new Integer[] { 1, null })
4858	+	{
4859	+	final AtomicInteger ran = new AtomicInteger(0);
4860	+	final CFException ex = new CFException();
4861	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4862	+	final DelegatedCompletionStage<Integer> d =
4863	+	new DelegatedCompletionStage<Integer>(f);
4864	+	if (!createIncomplete) f.completeExceptionally(ex);
4865	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4866	+	((Throwable t) -> {
4867	+	assertSame(t, ex);
4868	+	ran.getAndIncrement();
4869	+	return v1;
4870	+	});
4871	+	if (createIncomplete) f.completeExceptionally(ex);
4872	+
4873	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4874	+	checkCompletedExceptionally(f, ex);
4875	+	assertEquals(1, ran.get());
4876	+	}}
4877	+
4878	+	/**
4879	+	* Under default implementation, if an "exceptionally action"
4880	+	* throws an exception, it completes exceptionally with that
4881	+	* exception
4882	+	*/
4883	+	public void testDefaultExceptionallyAsync_exceptionalCompletionActionFailed() {
4884	+	for (boolean createIncomplete : new boolean[] { true, false })
4885	+	{
4886	+	final AtomicInteger ran = new AtomicInteger(0);
4887	+	final CFException ex1 = new CFException();
4888	+	final CFException ex2 = new CFException();
4889	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4890	+	final DelegatedCompletionStage<Integer> d =
4891	+	new DelegatedCompletionStage<Integer>(f);
4892	+	if (!createIncomplete) f.completeExceptionally(ex1);
4893	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4894	+	((Throwable t) -> {
4895	+	assertSame(t, ex1);
4896	+	ran.getAndIncrement();
4897	+	throw ex2;
4898	+	});
4899	+	if (createIncomplete) f.completeExceptionally(ex1);
4900	+
4901	+	checkCompletedWithWrappedException(g.toCompletableFuture(), ex2);
4902	+	checkCompletedExceptionally(f, ex1);
4903	+	checkCompletedExceptionally(d.toCompletableFuture(), ex1);
4904	+	assertEquals(1, ran.get());
4905	+	}}
4906	+
4907	+	/**
4908	+	* default-implemented exceptionallyCompose result completes
4909	+	* normally after normal completion of source
4910	+	*/
4911	+	public void testDefaultExceptionallyCompose_normalCompletion() {
4912	+	for (boolean createIncomplete : new boolean[] { true, false })
4913	+	for (Integer v1 : new Integer[] { 1, null })
4914	+	{
4915	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4916	+	final ExceptionalCompletableFutureFunction r =
4917	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4918	+	final DelegatedCompletionStage<Integer> d =
4919	+	new DelegatedCompletionStage<Integer>(f);
4920	+	if (!createIncomplete) assertTrue(f.complete(v1));
4921	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4922	+	if (createIncomplete) assertTrue(f.complete(v1));
4923	+
4924	+	checkCompletedNormally(f, v1);
4925	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4926	+	r.assertNotInvoked();
4927	+	}}
4928	+
4929	+	/**
4930	+	* default-implemented exceptionallyCompose result completes
4931	+	* normally after exceptional completion of source
4932	+	*/
4933	+	public void testDefaultExceptionallyCompose_exceptionalCompletion() {
4934	+	for (boolean createIncomplete : new boolean[] { true, false })
4935	+	{
4936	+	final CFException ex = new CFException();
4937	+	final ExceptionalCompletableFutureFunction r =
4938	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4939	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4940	+	final DelegatedCompletionStage<Integer> d =
4941	+	new DelegatedCompletionStage<Integer>(f);
4942	+	if (!createIncomplete) f.completeExceptionally(ex);
4943	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4944	+	if (createIncomplete) f.completeExceptionally(ex);
4945	+
4946	+	checkCompletedExceptionally(f, ex);
4947	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
4948	+	r.assertInvoked();
4949	+	}}
4950	+
4951	+	/**
4952	+	* default-implemented exceptionallyCompose completes
4953	+	* exceptionally on exception if action does
4954	+	*/
4955	+	public void testDefaultExceptionallyCompose_actionFailed() {
4956	+	for (boolean createIncomplete : new boolean[] { true, false })
4957	+	{
4958	+	final CFException ex = new CFException();
4959	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4960	+	final FailingExceptionalCompletableFutureFunction r
4961	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4962	+	final DelegatedCompletionStage<Integer> d =
4963	+	new DelegatedCompletionStage<Integer>(f);
4964	+	if (!createIncomplete) f.completeExceptionally(ex);
4965	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4966	+	if (createIncomplete) f.completeExceptionally(ex);
4967	+
4968	+	checkCompletedExceptionally(f, ex);
4969	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4970	+	r.assertInvoked();
4971	+	}}
4972	+
4973	+	/**
4974	+	* default-implemented exceptionallyComposeAsync result completes
4975	+	* normally after normal completion of source
4976	+	*/
4977	+	public void testDefaultExceptionallyComposeAsync_normalCompletion() {
4978	+	for (boolean createIncomplete : new boolean[] { true, false })
4979	+	for (Integer v1 : new Integer[] { 1, null })
4980	+	{
4981	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4982	+	final ExceptionalCompletableFutureFunction r =
4983	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4984	+	final DelegatedCompletionStage<Integer> d =
4985	+	new DelegatedCompletionStage<Integer>(f);
4986	+	if (!createIncomplete) assertTrue(f.complete(v1));
4987	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4988	+	if (createIncomplete) assertTrue(f.complete(v1));
4989	+
4990	+	checkCompletedNormally(f, v1);
4991	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4992	+	r.assertNotInvoked();
4993	+	}}
4994	+
4995	+	/**
4996	+	* default-implemented exceptionallyComposeAsync result completes
4997	+	* normally after exceptional completion of source
4998	+	*/
4999	+	public void testDefaultExceptionallyComposeAsync_exceptionalCompletion() {
5000	+	for (boolean createIncomplete : new boolean[] { true, false })
5001	+	{
5002	+	final CFException ex = new CFException();
5003	+	final ExceptionalCompletableFutureFunction r =
5004	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
5005	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5006	+	final DelegatedCompletionStage<Integer> d =
5007	+	new DelegatedCompletionStage<Integer>(f);
5008	+	if (!createIncomplete) f.completeExceptionally(ex);
5009	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5010	+	if (createIncomplete) f.completeExceptionally(ex);
5011	+
5012	+	checkCompletedExceptionally(f, ex);
5013	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5014	+	r.assertInvoked();
5015	+	}}
5016	+
5017	+	/**
5018	+	* default-implemented exceptionallyComposeAsync completes
5019	+	* exceptionally on exception if action does
5020	+	*/
5021	+	public void testDefaultExceptionallyComposeAsync_actionFailed() {
5022	+	for (boolean createIncomplete : new boolean[] { true, false })
5023	+	{
5024	+	final CFException ex = new CFException();
5025	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5026	+	final FailingExceptionalCompletableFutureFunction r
5027	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
5028	+	final DelegatedCompletionStage<Integer> d =
5029	+	new DelegatedCompletionStage<Integer>(f);
5030	+	if (!createIncomplete) f.completeExceptionally(ex);
5031	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5032	+	if (createIncomplete) f.completeExceptionally(ex);
5033	+
5034	+	checkCompletedExceptionally(f, ex);
5035	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5036	+	r.assertInvoked();
5037	+	}}
5038	+
5039	+	/**
5040	+	* default-implemented exceptionallyComposeAsync result completes
5041	+	* normally after normal completion of source
5042	+	*/
5043	+	public void testDefaultExceptionallyComposeAsyncExecutor_normalCompletion() {
5044	+	for (boolean createIncomplete : new boolean[] { true, false })
5045	+	for (Integer v1 : new Integer[] { 1, null })
5046	+	{
5047	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5048	+	final ExceptionalCompletableFutureFunction r =
5049	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5050	+	final DelegatedCompletionStage<Integer> d =
5051	+	new DelegatedCompletionStage<Integer>(f);
5052	+	if (!createIncomplete) assertTrue(f.complete(v1));
5053	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5054	+	if (createIncomplete) assertTrue(f.complete(v1));
5055	+
5056	+	checkCompletedNormally(f, v1);
5057	+	checkCompletedNormally(g.toCompletableFuture(), v1);
5058	+	r.assertNotInvoked();
5059	+	}}
5060	+
5061	+	/**
5062	+	* default-implemented exceptionallyComposeAsync result completes
5063	+	* normally after exceptional completion of source
5064	+	*/
5065	+	public void testDefaultExceptionallyComposeAsyncExecutor_exceptionalCompletion() {
5066	+	for (boolean createIncomplete : new boolean[] { true, false })
5067	+	{
5068	+	final CFException ex = new CFException();
5069	+	final ExceptionalCompletableFutureFunction r =
5070	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5071	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5072	+	final DelegatedCompletionStage<Integer> d =
5073	+	new DelegatedCompletionStage<Integer>(f);
5074	+	if (!createIncomplete) f.completeExceptionally(ex);
5075	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5076	+	if (createIncomplete) f.completeExceptionally(ex);
5077	+
5078	+	checkCompletedExceptionally(f, ex);
5079	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5080	+	r.assertInvoked();
5081	+	}}
5082	+
5083	+	/**
5084	+	* default-implemented exceptionallyComposeAsync completes
5085	+	* exceptionally on exception if action does
5086	+	*/
5087	+	public void testDefaultExceptionallyComposeAsyncExecutor_actionFailed() {
5088	+	for (boolean createIncomplete : new boolean[] { true, false })
5089	+	{
5090	+	final CFException ex = new CFException();
5091	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5092	+	final FailingExceptionalCompletableFutureFunction r
5093	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5094	+	final DelegatedCompletionStage<Integer> d =
5095	+	new DelegatedCompletionStage<Integer>(f);
5096	+	if (!createIncomplete) f.completeExceptionally(ex);
5097	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5098	+	if (createIncomplete) f.completeExceptionally(ex);
5099	+
5100	+	checkCompletedExceptionally(f, ex);
5101	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5102	+	r.assertInvoked();
5103	+	}}
5104	+
5105		}

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