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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.80 by jsr166, Mon Jun 16 17:29:03 2014 UTC vs.
Revision 1.186 by jsr166, Mon Jul 3 20:55:45 2017 UTC

#	Line 5 | Line 5
5		* http://creativecommons.org/publicdomain/zero/1.0/
6		*/
7
8	<	import junit.framework.*;
8	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
9	>	import static java.util.concurrent.TimeUnit.SECONDS;
10	>	import static java.util.concurrent.CompletableFuture.completedFuture;
11	>	import static java.util.concurrent.CompletableFuture.failedFuture;
12	>
13	>	import java.lang.reflect.Method;
14	>	import java.lang.reflect.Modifier;
15	>
16	>	import java.util.stream.Collectors;
17	>	import java.util.stream.Stream;
18	>
19	>	import java.util.ArrayList;
20	>	import java.util.Arrays;
21	>	import java.util.List;
22	>	import java.util.Objects;
23	>	import java.util.Set;
24		import java.util.concurrent.Callable;
10	–	import java.util.concurrent.Executor;
11	–	import java.util.concurrent.ExecutorService;
12	–	import java.util.concurrent.Executors;
25		import java.util.concurrent.CancellationException;
14	–	import java.util.concurrent.CountDownLatch;
15	–	import java.util.concurrent.ExecutionException;
16	–	import java.util.concurrent.Future;
26		import java.util.concurrent.CompletableFuture;
27		import java.util.concurrent.CompletionException;
28		import java.util.concurrent.CompletionStage;
29	+	import java.util.concurrent.ExecutionException;
30	+	import java.util.concurrent.Executor;
31		import java.util.concurrent.ForkJoinPool;
32		import java.util.concurrent.ForkJoinTask;
33	+	import java.util.concurrent.RejectedExecutionException;
34		import java.util.concurrent.TimeoutException;
35		import java.util.concurrent.atomic.AtomicInteger;
36	<	import static java.util.concurrent.TimeUnit.MILLISECONDS;
25	<	import static java.util.concurrent.TimeUnit.SECONDS;
26	<	import java.util.*;
27	<	import java.util.function.Supplier;
28	<	import java.util.function.Consumer;
36	>	import java.util.concurrent.atomic.AtomicReference;
37		import java.util.function.BiConsumer;
30	–	import java.util.function.Function;
38		import java.util.function.BiFunction;
39	+	import java.util.function.Consumer;
40	+	import java.util.function.Function;
41	+	import java.util.function.Predicate;
42	+	import java.util.function.Supplier;
43	+
44	+	import junit.framework.AssertionFailedError;
45	+	import junit.framework.Test;
46	+	import junit.framework.TestSuite;
47
48		public class CompletableFutureTest extends JSR166TestCase {
49
50		public static void main(String[] args) {
51	<	junit.textui.TestRunner.run(suite());
51	>	main(suite(), args);
52		}
53		public static Test suite() {
54		return new TestSuite(CompletableFutureTest.class);
#	Line 44 | Line 59 | public class CompletableFutureTest exten
59		void checkIncomplete(CompletableFuture<?> f) {
60		assertFalse(f.isDone());
61		assertFalse(f.isCancelled());
62	<	assertTrue(f.toString().contains("[Not completed]"));
62	>	assertTrue(f.toString().contains("Not completed"));
63		try {
64		assertNull(f.getNow(null));
65		} catch (Throwable fail) { threadUnexpectedException(fail); }
66		try {
67	<	f.get(0L, SECONDS);
67	>	f.get(randomExpiredTimeout(), randomTimeUnit());
68		shouldThrow();
69		}
70		catch (TimeoutException success) {}
#	Line 57 | Line 72 | public class CompletableFutureTest exten
72		}
73
74		<T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
75	<	try {
76	<	assertEquals(value, f.get(LONG_DELAY_MS, MILLISECONDS));
62	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
75	>	checkTimedGet(f, value);
76	>
77		try {
78		assertEquals(value, f.join());
65	–	} catch (Throwable fail) { threadUnexpectedException(fail); }
66	–	try {
79		assertEquals(value, f.getNow(null));
68	–	} catch (Throwable fail) { threadUnexpectedException(fail); }
69	–	try {
80		assertEquals(value, f.get());
81		} catch (Throwable fail) { threadUnexpectedException(fail); }
82		assertTrue(f.isDone());
#	Line 75 | Line 85 | public class CompletableFutureTest exten
85		assertTrue(f.toString().contains("[Completed normally]"));
86		}
87
88	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
89	<	try {
90	<	f.get(LONG_DELAY_MS, MILLISECONDS);
91	<	shouldThrow();
92	<	} catch (ExecutionException success) {
93	<	assertTrue(success.getCause() instanceof CFException);
94	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
95	<	try {
96	<	f.join();
97	<	shouldThrow();
98	<	} catch (CompletionException success) {
99	<	assertTrue(success.getCause() instanceof CFException);
100	<	}
101	<	try {
102	<	f.getNow(null);
103	<	shouldThrow();
104	<	} catch (CompletionException success) {
95	<	assertTrue(success.getCause() instanceof CFException);
88	>	/**
89	>	* Returns the "raw" internal exceptional completion of f,
90	>	* without any additional wrapping with CompletionException.
91	>	*/
92	>	Throwable exceptionalCompletion(CompletableFuture<?> f) {
93	>	// handle (and whenComplete and exceptionally) can distinguish
94	>	// between "direct" and "wrapped" exceptional completion
95	>	return f.handle((u, t) -> t).join();
96	>	}
97	>
98	>	void checkCompletedExceptionally(CompletableFuture<?> f,
99	>	boolean wrapped,
100	>	Consumer<Throwable> checker) {
101	>	Throwable cause = exceptionalCompletion(f);
102	>	if (wrapped) {
103	>	assertTrue(cause instanceof CompletionException);
104	>	cause = cause.getCause();
105		}
106	<	try {
98	<	f.get();
99	<	shouldThrow();
100	<	} catch (ExecutionException success) {
101	<	assertTrue(success.getCause() instanceof CFException);
102	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
103	<	assertTrue(f.isDone());
104	<	assertFalse(f.isCancelled());
105	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
106	<	}
106	>	checker.accept(cause);
107
108	<	<U> void checkCompletedExceptionallyWithRootCause(CompletableFuture<U> f,
109	<	Throwable ex) {
108	>	long startTime = System.nanoTime();
109		try {
110		f.get(LONG_DELAY_MS, MILLISECONDS);
111		shouldThrow();
112		} catch (ExecutionException success) {
113	<	assertSame(ex, success.getCause());
113	>	assertSame(cause, success.getCause());
114		} catch (Throwable fail) { threadUnexpectedException(fail); }
115	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
116	+
117		try {
118		f.join();
119		shouldThrow();
120		} catch (CompletionException success) {
121	<	assertSame(ex, success.getCause());
122	<	}
121	>	assertSame(cause, success.getCause());
122	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
123	>
124		try {
125		f.getNow(null);
126		shouldThrow();
127		} catch (CompletionException success) {
128	<	assertSame(ex, success.getCause());
129	<	}
128	>	assertSame(cause, success.getCause());
129	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
130	>
131		try {
132		f.get();
133		shouldThrow();
134		} catch (ExecutionException success) {
135	<	assertSame(ex, success.getCause());
135	>	assertSame(cause, success.getCause());
136		} catch (Throwable fail) { threadUnexpectedException(fail); }
137
135	–	assertTrue(f.isDone());
138		assertFalse(f.isCancelled());
139	+	assertTrue(f.isDone());
140	+	assertTrue(f.isCompletedExceptionally());
141		assertTrue(f.toString().contains("[Completed exceptionally]"));
142		}
143
144	<	<U> void checkCompletedWithWrappedException(CompletableFuture<U> f,
145	<	Throwable ex) {
146	<	checkCompletedExceptionallyWithRootCause(f, ex);
143	<	try {
144	<	CompletableFuture<Throwable> spy = f.handle
145	<	((U u, Throwable t) -> t);
146	<	assertTrue(spy.join() instanceof CompletionException);
147	<	assertSame(ex, spy.join().getCause());
148	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
144	>	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
145	>	checkCompletedExceptionally(f, true,
146	>	t -> assertTrue(t instanceof CFException));
147		}
148
149	<	<U> void checkCompletedExceptionally(CompletableFuture<U> f, Throwable ex) {
150	<	checkCompletedExceptionallyWithRootCause(f, ex);
151	<	try {
152	<	CompletableFuture<Throwable> spy = f.handle
153	<	((U u, Throwable t) -> t);
154	<	assertSame(ex, spy.join());
155	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
149	>	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
150	>	checkCompletedExceptionally(f, true,
151	>	t -> assertTrue(t instanceof CancellationException));
152	>	}
153	>
154	>	void checkCompletedWithTimeoutException(CompletableFuture<?> f) {
155	>	checkCompletedExceptionally(f, false,
156	>	t -> assertTrue(t instanceof TimeoutException));
157	>	}
158	>
159	>	void checkCompletedWithWrappedException(CompletableFuture<?> f,
160	>	Throwable ex) {
161	>	checkCompletedExceptionally(f, true, t -> assertSame(t, ex));
162	>	}
163	>
164	>	void checkCompletedExceptionally(CompletableFuture<?> f, Throwable ex) {
165	>	checkCompletedExceptionally(f, false, t -> assertSame(t, ex));
166		}
167
168		void checkCancelled(CompletableFuture<?> f) {
169	+	long startTime = System.nanoTime();
170		try {
171		f.get(LONG_DELAY_MS, MILLISECONDS);
172		shouldThrow();
173		} catch (CancellationException success) {
174		} catch (Throwable fail) { threadUnexpectedException(fail); }
175	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
176	+
177		try {
178		f.join();
179		shouldThrow();
#	Line 176 | Line 187 | public class CompletableFutureTest exten
187		shouldThrow();
188		} catch (CancellationException success) {
189		} catch (Throwable fail) { threadUnexpectedException(fail); }
179	–	assertTrue(f.isDone());
180	–	assertTrue(f.isCompletedExceptionally());
181	–	assertTrue(f.isCancelled());
182	–	assertTrue(f.toString().contains("[Completed exceptionally]"));
183	–	}
190
191	<	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
192	<	try {
187	<	f.get(LONG_DELAY_MS, MILLISECONDS);
188	<	shouldThrow();
189	<	} catch (ExecutionException success) {
190	<	assertTrue(success.getCause() instanceof CancellationException);
191	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
192	<	try {
193	<	f.join();
194	<	shouldThrow();
195	<	} catch (CompletionException success) {
196	<	assertTrue(success.getCause() instanceof CancellationException);
197	<	}
198	<	try {
199	<	f.getNow(null);
200	<	shouldThrow();
201	<	} catch (CompletionException success) {
202	<	assertTrue(success.getCause() instanceof CancellationException);
203	<	}
204	<	try {
205	<	f.get();
206	<	shouldThrow();
207	<	} catch (ExecutionException success) {
208	<	assertTrue(success.getCause() instanceof CancellationException);
209	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
191	>	assertTrue(exceptionalCompletion(f) instanceof CancellationException);
192	>
193		assertTrue(f.isDone());
211	–	assertFalse(f.isCancelled());
194		assertTrue(f.isCompletedExceptionally());
195	+	assertTrue(f.isCancelled());
196		assertTrue(f.toString().contains("[Completed exceptionally]"));
197		}
198
#	Line 257 | Line 240 | public class CompletableFutureTest exten
240		{
241		CompletableFuture<Integer> f = new CompletableFuture<>();
242		checkIncomplete(f);
243	<	assertTrue(f.cancel(true));
244	<	assertTrue(f.cancel(true));
243	>	assertTrue(f.cancel(mayInterruptIfRunning));
244	>	assertTrue(f.cancel(mayInterruptIfRunning));
245	>	assertTrue(f.cancel(!mayInterruptIfRunning));
246		checkCancelled(f);
247		}}
248
#	Line 373 | Line 357 | public class CompletableFutureTest exten
357		checkCompletedNormally(f, "test");
358		}
359
360	<	abstract class CheckedAction {
360	>	abstract static class CheckedAction {
361		int invocationCount = 0;
362		final ExecutionMode m;
363		CheckedAction(ExecutionMode m) { this.m = m; }
#	Line 385 | Line 369 | public class CompletableFutureTest exten
369		void assertInvoked() { assertEquals(1, invocationCount); }
370		}
371
372	<	abstract class CheckedIntegerAction extends CheckedAction {
372	>	abstract static class CheckedIntegerAction extends CheckedAction {
373		Integer value;
374		CheckedIntegerAction(ExecutionMode m) { super(m); }
375		void assertValue(Integer expected) {
#	Line 394 | Line 378 | public class CompletableFutureTest exten
378		}
379		}
380
381	<	class IntegerSupplier extends CheckedAction
381	>	static class IntegerSupplier extends CheckedAction
382		implements Supplier<Integer>
383		{
384		final Integer value;
#	Line 413 | Line 397 | public class CompletableFutureTest exten
397		return (x == null) ? null : x + 1;
398		}
399
400	<	class NoopConsumer extends CheckedIntegerAction
400	>	static class NoopConsumer extends CheckedIntegerAction
401		implements Consumer<Integer>
402		{
403		NoopConsumer(ExecutionMode m) { super(m); }
#	Line 423 | Line 407 | public class CompletableFutureTest exten
407		}
408		}
409
410	<	class IncFunction extends CheckedIntegerAction
410	>	static class IncFunction extends CheckedIntegerAction
411		implements Function<Integer,Integer>
412		{
413		IncFunction(ExecutionMode m) { super(m); }
#	Line 441 | Line 425 | public class CompletableFutureTest exten
425		- ((y == null) ? 99 : y.intValue());
426		}
427
428	<	class SubtractAction extends CheckedIntegerAction
428	>	static class SubtractAction extends CheckedIntegerAction
429		implements BiConsumer<Integer, Integer>
430		{
431		SubtractAction(ExecutionMode m) { super(m); }
#	Line 451 | Line 435 | public class CompletableFutureTest exten
435		}
436		}
437
438	<	class SubtractFunction extends CheckedIntegerAction
438	>	static class SubtractFunction extends CheckedIntegerAction
439		implements BiFunction<Integer, Integer, Integer>
440		{
441		SubtractFunction(ExecutionMode m) { super(m); }
#	Line 461 | Line 445 | public class CompletableFutureTest exten
445		}
446		}
447
448	<	class Noop extends CheckedAction implements Runnable {
448	>	static class Noop extends CheckedAction implements Runnable {
449		Noop(ExecutionMode m) { super(m); }
450		public void run() {
451		invoked();
452		}
453		}
454
455	<	class FailingSupplier extends CheckedAction
455	>	static class FailingSupplier extends CheckedAction
456		implements Supplier<Integer>
457		{
458	<	FailingSupplier(ExecutionMode m) { super(m); }
458	>	final CFException ex;
459	>	FailingSupplier(ExecutionMode m) { super(m); ex = new CFException(); }
460		public Integer get() {
461		invoked();
462	<	throw new CFException();
462	>	throw ex;
463		}
464		}
465
466	<	class FailingConsumer extends CheckedIntegerAction
466	>	static class FailingConsumer extends CheckedIntegerAction
467		implements Consumer<Integer>
468		{
469	<	FailingConsumer(ExecutionMode m) { super(m); }
469	>	final CFException ex;
470	>	FailingConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
471		public void accept(Integer x) {
472		invoked();
473		value = x;
474	<	throw new CFException();
474	>	throw ex;
475		}
476		}
477
478	<	class FailingBiConsumer extends CheckedIntegerAction
478	>	static class FailingBiConsumer extends CheckedIntegerAction
479		implements BiConsumer<Integer, Integer>
480		{
481	<	FailingBiConsumer(ExecutionMode m) { super(m); }
481	>	final CFException ex;
482	>	FailingBiConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
483		public void accept(Integer x, Integer y) {
484		invoked();
485		value = subtract(x, y);
486	<	throw new CFException();
486	>	throw ex;
487		}
488		}
489
490	<	class FailingFunction extends CheckedIntegerAction
490	>	static class FailingFunction extends CheckedIntegerAction
491		implements Function<Integer, Integer>
492		{
493	<	FailingFunction(ExecutionMode m) { super(m); }
493	>	final CFException ex;
494	>	FailingFunction(ExecutionMode m) { super(m); ex = new CFException(); }
495		public Integer apply(Integer x) {
496		invoked();
497		value = x;
498	<	throw new CFException();
498	>	throw ex;
499		}
500		}
501
502	<	class FailingBiFunction extends CheckedIntegerAction
502	>	static class FailingBiFunction extends CheckedIntegerAction
503		implements BiFunction<Integer, Integer, Integer>
504		{
505	<	FailingBiFunction(ExecutionMode m) { super(m); }
505	>	final CFException ex;
506	>	FailingBiFunction(ExecutionMode m) { super(m); ex = new CFException(); }
507		public Integer apply(Integer x, Integer y) {
508		invoked();
509		value = subtract(x, y);
510	<	throw new CFException();
510	>	throw ex;
511		}
512		}
513
514	<	class FailingRunnable extends CheckedAction implements Runnable {
515	<	FailingRunnable(ExecutionMode m) { super(m); }
514	>	static class FailingRunnable extends CheckedAction implements Runnable {
515	>	final CFException ex;
516	>	FailingRunnable(ExecutionMode m) { super(m); ex = new CFException(); }
517		public void run() {
518		invoked();
519	<	throw new CFException();
519	>	throw ex;
520		}
521		}
522
523	<
534	<	class CompletableFutureInc extends CheckedIntegerAction
523	>	static class CompletableFutureInc extends CheckedIntegerAction
524		implements Function<Integer, CompletableFuture<Integer>>
525		{
526		CompletableFutureInc(ExecutionMode m) { super(m); }
#	Line 544 | Line 533 | public class CompletableFutureTest exten
533		}
534		}
535
536	<	class FailingCompletableFutureFunction extends CheckedIntegerAction
536	>	static class FailingCompletableFutureFunction extends CheckedIntegerAction
537		implements Function<Integer, CompletableFuture<Integer>>
538		{
539	<	FailingCompletableFutureFunction(ExecutionMode m) { super(m); }
539	>	final CFException ex;
540	>	FailingCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
541		public CompletableFuture<Integer> apply(Integer x) {
542		invoked();
543		value = x;
544	<	throw new CFException();
544	>	throw ex;
545	>	}
546	>	}
547	>
548	>	static class CountingRejectingExecutor implements Executor {
549	>	final RejectedExecutionException ex = new RejectedExecutionException();
550	>	final AtomicInteger count = new AtomicInteger(0);
551	>	public void execute(Runnable r) {
552	>	count.getAndIncrement();
553	>	throw ex;
554		}
555		}
556
#	Line 569 | Line 568 | public class CompletableFutureTest exten
568		}
569		}
570
571	+	static final boolean defaultExecutorIsCommonPool
572	+	= ForkJoinPool.getCommonPoolParallelism() > 1;
573	+
574		/**
575		* Permits the testing of parallel code for the 3 different
576		* execution modes without copy/pasting all the test methods.
577		*/
578		enum ExecutionMode {
579	<	DEFAULT {
579	>	SYNC {
580		public void checkExecutionMode() {
581		assertFalse(ThreadExecutor.startedCurrentThread());
582		assertNull(ForkJoinTask.getPool());
#	Line 650 | Line 652 | public class CompletableFutureTest exten
652
653		ASYNC {
654		public void checkExecutionMode() {
655	<	assertSame(ForkJoinPool.commonPool(),
656	<	ForkJoinTask.getPool());
655	>	assertEquals(defaultExecutorIsCommonPool,
656	>	(ForkJoinPool.commonPool() == ForkJoinTask.getPool()));
657		}
658		public CompletableFuture<Void> runAsync(Runnable a) {
659		return CompletableFuture.runAsync(a);
#	Line 850 | Line 852 | public class CompletableFutureTest exten
852		if (!createIncomplete) assertTrue(f.complete(v1));
853		final CompletableFuture<Integer> g = f.exceptionally
854		((Throwable t) -> {
853	–	// Should not be called
855		a.getAndIncrement();
856	<	throw new AssertionError();
856	>	threadFail("should not be called");
857	>	return null;            // unreached
858		});
859		if (createIncomplete) assertTrue(f.complete(v1));
860
#	Line 875 | Line 877 | public class CompletableFutureTest exten
877		if (!createIncomplete) f.completeExceptionally(ex);
878		final CompletableFuture<Integer> g = f.exceptionally
879		((Throwable t) -> {
880	<	ExecutionMode.DEFAULT.checkExecutionMode();
880	>	ExecutionMode.SYNC.checkExecutionMode();
881		threadAssertSame(t, ex);
882		a.getAndIncrement();
883		return v1;
#	Line 886 | Line 888 | public class CompletableFutureTest exten
888		assertEquals(1, a.get());
889		}}
890
891	+	/**
892	+	* If an "exceptionally action" throws an exception, it completes
893	+	* exceptionally with that exception
894	+	*/
895		public void testExceptionally_exceptionalCompletionActionFailed() {
896		for (boolean createIncomplete : new boolean[] { true, false })
891	–	for (Integer v1 : new Integer[] { 1, null })
897		{
898		final AtomicInteger a = new AtomicInteger(0);
899		final CFException ex1 = new CFException();
#	Line 897 | Line 902 | public class CompletableFutureTest exten
902		if (!createIncomplete) f.completeExceptionally(ex1);
903		final CompletableFuture<Integer> g = f.exceptionally
904		((Throwable t) -> {
905	<	ExecutionMode.DEFAULT.checkExecutionMode();
905	>	ExecutionMode.SYNC.checkExecutionMode();
906		threadAssertSame(t, ex1);
907		a.getAndIncrement();
908		throw ex2;
#	Line 905 | Line 910 | public class CompletableFutureTest exten
910		if (createIncomplete) f.completeExceptionally(ex1);
911
912		checkCompletedWithWrappedException(g, ex2);
913	+	checkCompletedExceptionally(f, ex1);
914		assertEquals(1, a.get());
915		}}
916
#	Line 912 | Line 918 | public class CompletableFutureTest exten
918		* whenComplete action executes on normal completion, propagating
919		* source result.
920		*/
921	<	public void testWhenComplete_normalCompletion1() {
921	>	public void testWhenComplete_normalCompletion() {
922		for (ExecutionMode m : ExecutionMode.values())
923		for (boolean createIncomplete : new boolean[] { true, false })
924		for (Integer v1 : new Integer[] { 1, null })
#	Line 922 | Line 928 | public class CompletableFutureTest exten
928		if (!createIncomplete) assertTrue(f.complete(v1));
929		final CompletableFuture<Integer> g = m.whenComplete
930		(f,
931	<	(Integer x, Throwable t) -> {
931	>	(Integer result, Throwable t) -> {
932		m.checkExecutionMode();
933	<	threadAssertSame(x, v1);
933	>	threadAssertSame(result, v1);
934		threadAssertNull(t);
935		a.getAndIncrement();
936		});
#	Line 942 | Line 948 | public class CompletableFutureTest exten
948		public void testWhenComplete_exceptionalCompletion() {
949		for (ExecutionMode m : ExecutionMode.values())
950		for (boolean createIncomplete : new boolean[] { true, false })
945	–	for (Integer v1 : new Integer[] { 1, null })
951		{
952		final AtomicInteger a = new AtomicInteger(0);
953		final CFException ex = new CFException();
#	Line 950 | Line 955 | public class CompletableFutureTest exten
955		if (!createIncomplete) f.completeExceptionally(ex);
956		final CompletableFuture<Integer> g = m.whenComplete
957		(f,
958	<	(Integer x, Throwable t) -> {
958	>	(Integer result, Throwable t) -> {
959		m.checkExecutionMode();
960	<	threadAssertNull(x);
960	>	threadAssertNull(result);
961		threadAssertSame(t, ex);
962		a.getAndIncrement();
963		});
#	Line 977 | Line 982 | public class CompletableFutureTest exten
982		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
983		final CompletableFuture<Integer> g = m.whenComplete
984		(f,
985	<	(Integer x, Throwable t) -> {
985	>	(Integer result, Throwable t) -> {
986		m.checkExecutionMode();
987	<	threadAssertNull(x);
987	>	threadAssertNull(result);
988		threadAssertTrue(t instanceof CancellationException);
989		a.getAndIncrement();
990		});
#	Line 994 | Line 999 | public class CompletableFutureTest exten
999		* If a whenComplete action throws an exception when triggered by
1000		* a normal completion, it completes exceptionally
1001		*/
1002	<	public void testWhenComplete_actionFailed() {
1002	>	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
1003		for (boolean createIncomplete : new boolean[] { true, false })
1004		for (ExecutionMode m : ExecutionMode.values())
1005		for (Integer v1 : new Integer[] { 1, null })
#	Line 1005 | Line 1010 | public class CompletableFutureTest exten
1010		if (!createIncomplete) assertTrue(f.complete(v1));
1011		final CompletableFuture<Integer> g = m.whenComplete
1012		(f,
1013	<	(Integer x, Throwable t) -> {
1013	>	(Integer result, Throwable t) -> {
1014		m.checkExecutionMode();
1015	<	threadAssertSame(x, v1);
1015	>	threadAssertSame(result, v1);
1016		threadAssertNull(t);
1017		a.getAndIncrement();
1018		throw ex;
#	Line 1022 | Line 1027 | public class CompletableFutureTest exten
1027		/**
1028		* If a whenComplete action throws an exception when triggered by
1029		* a source completion that also throws an exception, the source
1030	<	* exception takes precedence.
1030	>	* exception takes precedence (unlike handle)
1031		*/
1032	<	public void testWhenComplete_actionFailedSourceFailed() {
1032	>	public void testWhenComplete_sourceFailedActionFailed() {
1033		for (boolean createIncomplete : new boolean[] { true, false })
1034		for (ExecutionMode m : ExecutionMode.values())
1030	–	for (Integer v1 : new Integer[] { 1, null })
1035		{
1036		final AtomicInteger a = new AtomicInteger(0);
1037		final CFException ex1 = new CFException();
#	Line 1037 | Line 1041 | public class CompletableFutureTest exten
1041		if (!createIncomplete) f.completeExceptionally(ex1);
1042		final CompletableFuture<Integer> g = m.whenComplete
1043		(f,
1044	<	(Integer x, Throwable t) -> {
1044	>	(Integer result, Throwable t) -> {
1045		m.checkExecutionMode();
1046		threadAssertSame(t, ex1);
1047	<	threadAssertNull(x);
1047	>	threadAssertNull(result);
1048		a.getAndIncrement();
1049		throw ex2;
1050		});
#	Line 1048 | Line 1052 | public class CompletableFutureTest exten
1052
1053		checkCompletedWithWrappedException(g, ex1);
1054		checkCompletedExceptionally(f, ex1);
1055	+	if (testImplementationDetails) {
1056	+	assertEquals(1, ex1.getSuppressed().length);
1057	+	assertSame(ex2, ex1.getSuppressed()[0]);
1058	+	}
1059		assertEquals(1, a.get());
1060		}}
1061
#	Line 1065 | Line 1073 | public class CompletableFutureTest exten
1073		if (!createIncomplete) assertTrue(f.complete(v1));
1074		final CompletableFuture<Integer> g = m.handle
1075		(f,
1076	<	(Integer x, Throwable t) -> {
1076	>	(Integer result, Throwable t) -> {
1077		m.checkExecutionMode();
1078	<	threadAssertSame(x, v1);
1078	>	threadAssertSame(result, v1);
1079		threadAssertNull(t);
1080		a.getAndIncrement();
1081		return inc(v1);
#	Line 1094 | Line 1102 | public class CompletableFutureTest exten
1102		if (!createIncomplete) f.completeExceptionally(ex);
1103		final CompletableFuture<Integer> g = m.handle
1104		(f,
1105	<	(Integer x, Throwable t) -> {
1105	>	(Integer result, Throwable t) -> {
1106		m.checkExecutionMode();
1107	<	threadAssertNull(x);
1107	>	threadAssertNull(result);
1108		threadAssertSame(t, ex);
1109		a.getAndIncrement();
1110		return v1;
#	Line 1123 | Line 1131 | public class CompletableFutureTest exten
1131		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1132		final CompletableFuture<Integer> g = m.handle
1133		(f,
1134	<	(Integer x, Throwable t) -> {
1134	>	(Integer result, Throwable t) -> {
1135		m.checkExecutionMode();
1136	<	threadAssertNull(x);
1136	>	threadAssertNull(result);
1137		threadAssertTrue(t instanceof CancellationException);
1138		a.getAndIncrement();
1139		return v1;
#	Line 1138 | Line 1146 | public class CompletableFutureTest exten
1146		}}
1147
1148		/**
1149	<	* handle result completes exceptionally if action does
1149	>	* If a "handle action" throws an exception when triggered by
1150	>	* a normal completion, it completes exceptionally
1151		*/
1152	<	public void testHandle_sourceFailedActionFailed() {
1152	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1153		for (ExecutionMode m : ExecutionMode.values())
1154		for (boolean createIncomplete : new boolean[] { true, false })
1155	+	for (Integer v1 : new Integer[] { 1, null })
1156		{
1157		final CompletableFuture<Integer> f = new CompletableFuture<>();
1158		final AtomicInteger a = new AtomicInteger(0);
1159	<	final CFException ex1 = new CFException();
1160	<	final CFException ex2 = new CFException();
1151	<	if (!createIncomplete) f.completeExceptionally(ex1);
1159	>	final CFException ex = new CFException();
1160	>	if (!createIncomplete) assertTrue(f.complete(v1));
1161		final CompletableFuture<Integer> g = m.handle
1162		(f,
1163	<	(Integer x, Throwable t) -> {
1163	>	(Integer result, Throwable t) -> {
1164		m.checkExecutionMode();
1165	<	threadAssertNull(x);
1166	<	threadAssertSame(ex1, t);
1165	>	threadAssertSame(result, v1);
1166	>	threadAssertNull(t);
1167		a.getAndIncrement();
1168	<	throw ex2;
1168	>	throw ex;
1169		});
1170	<	if (createIncomplete) f.completeExceptionally(ex1);
1170	>	if (createIncomplete) assertTrue(f.complete(v1));
1171
1172	<	checkCompletedWithWrappedException(g, ex2);
1173	<	checkCompletedExceptionally(f, ex1);
1172	>	checkCompletedWithWrappedException(g, ex);
1173	>	checkCompletedNormally(f, v1);
1174		assertEquals(1, a.get());
1175		}}
1176
1177	<	public void testHandle_sourceCompletedNormallyActionFailed() {
1178	<	for (ExecutionMode m : ExecutionMode.values())
1177	>	/**
1178	>	* If a "handle action" throws an exception when triggered by
1179	>	* a source completion that also throws an exception, the action
1180	>	* exception takes precedence (unlike whenComplete)
1181	>	*/
1182	>	public void testHandle_sourceFailedActionFailed() {
1183		for (boolean createIncomplete : new boolean[] { true, false })
1184	<	for (Integer v1 : new Integer[] { 1, null })
1184	>	for (ExecutionMode m : ExecutionMode.values())
1185		{
1173	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
1186		final AtomicInteger a = new AtomicInteger(0);
1187	<	final CFException ex = new CFException();
1188	<	if (!createIncomplete) assertTrue(f.complete(v1));
1187	>	final CFException ex1 = new CFException();
1188	>	final CFException ex2 = new CFException();
1189	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1190	>
1191	>	if (!createIncomplete) f.completeExceptionally(ex1);
1192		final CompletableFuture<Integer> g = m.handle
1193		(f,
1194	<	(Integer x, Throwable t) -> {
1194	>	(Integer result, Throwable t) -> {
1195		m.checkExecutionMode();
1196	<	threadAssertSame(x, v1);
1197	<	threadAssertNull(t);
1196	>	threadAssertNull(result);
1197	>	threadAssertSame(ex1, t);
1198		a.getAndIncrement();
1199	<	throw ex;
1199	>	throw ex2;
1200		});
1201	<	if (createIncomplete) assertTrue(f.complete(v1));
1201	>	if (createIncomplete) f.completeExceptionally(ex1);
1202
1203	<	checkCompletedWithWrappedException(g, ex);
1204	<	checkCompletedNormally(f, v1);
1203	>	checkCompletedWithWrappedException(g, ex2);
1204	>	checkCompletedExceptionally(f, ex1);
1205		assertEquals(1, a.get());
1206		}}
1207
#	Line 1219 | Line 1234 | public class CompletableFutureTest exten
1234		{
1235		final FailingRunnable r = new FailingRunnable(m);
1236		final CompletableFuture<Void> f = m.runAsync(r);
1237	<	checkCompletedWithWrappedCFException(f);
1237	>	checkCompletedWithWrappedException(f, r.ex);
1238		r.assertInvoked();
1239		}}
1240
1241	+	public void testRunAsync_rejectingExecutor() {
1242	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1243	+	try {
1244	+	CompletableFuture.runAsync(() -> {}, e);
1245	+	shouldThrow();
1246	+	} catch (Throwable t) {
1247	+	assertSame(e.ex, t);
1248	+	}
1249	+
1250	+	assertEquals(1, e.count.get());
1251	+	}
1252	+
1253		/**
1254		* supplyAsync completes with result of supplier
1255		*/
#	Line 1253 | Line 1280 | public class CompletableFutureTest exten
1280		{
1281		FailingSupplier r = new FailingSupplier(m);
1282		CompletableFuture<Integer> f = m.supplyAsync(r);
1283	<	checkCompletedWithWrappedCFException(f);
1283	>	checkCompletedWithWrappedException(f, r.ex);
1284		r.assertInvoked();
1285		}}
1286
1287	+	public void testSupplyAsync_rejectingExecutor() {
1288	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1289	+	try {
1290	+	CompletableFuture.supplyAsync(() -> null, e);
1291	+	shouldThrow();
1292	+	} catch (Throwable t) {
1293	+	assertSame(e.ex, t);
1294	+	}
1295	+
1296	+	assertEquals(1, e.count.get());
1297	+	}
1298	+
1299		// seq completion methods
1300
1301		/**
#	Line 1264 | Line 1303 | public class CompletableFutureTest exten
1303		*/
1304		public void testThenRun_normalCompletion() {
1305		for (ExecutionMode m : ExecutionMode.values())
1267	–	for (boolean createIncomplete : new boolean[] { true, false })
1306		for (Integer v1 : new Integer[] { 1, null })
1307		{
1308		final CompletableFuture<Integer> f = new CompletableFuture<>();
1309	<	final Noop r = new Noop(m);
1310	<	if (!createIncomplete) assertTrue(f.complete(v1));
1273	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1274	<	if (createIncomplete) {
1275	<	checkIncomplete(g);
1276	<	assertTrue(f.complete(v1));
1277	<	}
1309	>	final Noop[] rs = new Noop[6];
1310	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1311
1312	<	checkCompletedNormally(g, null);
1312	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1313	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1314	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1315	>	checkIncomplete(h0);
1316	>	checkIncomplete(h1);
1317	>	checkIncomplete(h2);
1318	>	assertTrue(f.complete(v1));
1319	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1320	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1321	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1322	>
1323	>	checkCompletedNormally(h0, null);
1324	>	checkCompletedNormally(h1, null);
1325	>	checkCompletedNormally(h2, null);
1326	>	checkCompletedNormally(h3, null);
1327	>	checkCompletedNormally(h4, null);
1328	>	checkCompletedNormally(h5, null);
1329		checkCompletedNormally(f, v1);
1330	<	r.assertInvoked();
1330	>	for (Noop r : rs) r.assertInvoked();
1331		}}
1332
1333		/**
#	Line 1287 | Line 1336 | public class CompletableFutureTest exten
1336		*/
1337		public void testThenRun_exceptionalCompletion() {
1338		for (ExecutionMode m : ExecutionMode.values())
1290	–	for (boolean createIncomplete : new boolean[] { true, false })
1339		{
1340		final CFException ex = new CFException();
1341		final CompletableFuture<Integer> f = new CompletableFuture<>();
1342	<	final Noop r = new Noop(m);
1343	<	if (!createIncomplete) f.completeExceptionally(ex);
1296	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1297	<	if (createIncomplete) {
1298	<	checkIncomplete(g);
1299	<	f.completeExceptionally(ex);
1300	<	}
1342	>	final Noop[] rs = new Noop[6];
1343	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1344
1345	<	checkCompletedWithWrappedException(g, ex);
1345	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1346	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1347	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1348	>	checkIncomplete(h0);
1349	>	checkIncomplete(h1);
1350	>	checkIncomplete(h2);
1351	>	assertTrue(f.completeExceptionally(ex));
1352	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1353	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1354	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1355	>
1356	>	checkCompletedWithWrappedException(h0, ex);
1357	>	checkCompletedWithWrappedException(h1, ex);
1358	>	checkCompletedWithWrappedException(h2, ex);
1359	>	checkCompletedWithWrappedException(h3, ex);
1360	>	checkCompletedWithWrappedException(h4, ex);
1361	>	checkCompletedWithWrappedException(h5, ex);
1362		checkCompletedExceptionally(f, ex);
1363	<	r.assertNotInvoked();
1363	>	for (Noop r : rs) r.assertNotInvoked();
1364		}}
1365
1366		/**
#	Line 1309 | Line 1368 | public class CompletableFutureTest exten
1368		*/
1369		public void testThenRun_sourceCancelled() {
1370		for (ExecutionMode m : ExecutionMode.values())
1312	–	for (boolean createIncomplete : new boolean[] { true, false })
1371		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1372		{
1373		final CompletableFuture<Integer> f = new CompletableFuture<>();
1374	<	final Noop r = new Noop(m);
1375	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1318	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1319	<	if (createIncomplete) {
1320	<	checkIncomplete(g);
1321	<	assertTrue(f.cancel(mayInterruptIfRunning));
1322	<	}
1374	>	final Noop[] rs = new Noop[6];
1375	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1376
1377	<	checkCompletedWithWrappedCancellationException(g);
1377	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1378	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1379	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1380	>	checkIncomplete(h0);
1381	>	checkIncomplete(h1);
1382	>	checkIncomplete(h2);
1383	>	assertTrue(f.cancel(mayInterruptIfRunning));
1384	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1385	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1386	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1387	>
1388	>	checkCompletedWithWrappedCancellationException(h0);
1389	>	checkCompletedWithWrappedCancellationException(h1);
1390	>	checkCompletedWithWrappedCancellationException(h2);
1391	>	checkCompletedWithWrappedCancellationException(h3);
1392	>	checkCompletedWithWrappedCancellationException(h4);
1393	>	checkCompletedWithWrappedCancellationException(h5);
1394		checkCancelled(f);
1395	<	r.assertNotInvoked();
1395	>	for (Noop r : rs) r.assertNotInvoked();
1396		}}
1397
1398		/**
#	Line 1331 | Line 1400 | public class CompletableFutureTest exten
1400		*/
1401		public void testThenRun_actionFailed() {
1402		for (ExecutionMode m : ExecutionMode.values())
1334	–	for (boolean createIncomplete : new boolean[] { true, false })
1403		for (Integer v1 : new Integer[] { 1, null })
1404		{
1405		final CompletableFuture<Integer> f = new CompletableFuture<>();
1406	<	final FailingRunnable r = new FailingRunnable(m);
1407	<	if (!createIncomplete) assertTrue(f.complete(v1));
1340	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1341	<	if (createIncomplete) {
1342	<	checkIncomplete(g);
1343	<	assertTrue(f.complete(v1));
1344	<	}
1406	>	final FailingRunnable[] rs = new FailingRunnable[6];
1407	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1408
1409	<	checkCompletedWithWrappedCFException(g);
1409	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1410	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1411	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1412	>	assertTrue(f.complete(v1));
1413	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1414	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1415	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1416	>
1417	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1418	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1419	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1420	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1421	>	checkCompletedWithWrappedException(h4, rs[4].ex);
1422	>	checkCompletedWithWrappedException(h5, rs[5].ex);
1423		checkCompletedNormally(f, v1);
1424		}}
1425
#	Line 1352 | Line 1428 | public class CompletableFutureTest exten
1428		*/
1429		public void testThenApply_normalCompletion() {
1430		for (ExecutionMode m : ExecutionMode.values())
1355	–	for (boolean createIncomplete : new boolean[] { true, false })
1431		for (Integer v1 : new Integer[] { 1, null })
1432		{
1433		final CompletableFuture<Integer> f = new CompletableFuture<>();
1434	<	final IncFunction r = new IncFunction(m);
1435	<	if (!createIncomplete) assertTrue(f.complete(v1));
1361	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1362	<	if (createIncomplete) {
1363	<	checkIncomplete(g);
1364	<	assertTrue(f.complete(v1));
1365	<	}
1434	>	final IncFunction[] rs = new IncFunction[4];
1435	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1436
1437	<	checkCompletedNormally(g, inc(v1));
1437	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1438	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1439	>	checkIncomplete(h0);
1440	>	checkIncomplete(h1);
1441	>	assertTrue(f.complete(v1));
1442	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1443	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1444	>
1445	>	checkCompletedNormally(h0, inc(v1));
1446	>	checkCompletedNormally(h1, inc(v1));
1447	>	checkCompletedNormally(h2, inc(v1));
1448	>	checkCompletedNormally(h3, inc(v1));
1449		checkCompletedNormally(f, v1);
1450	<	r.assertValue(inc(v1));
1450	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1451		}}
1452
1453		/**
#	Line 1375 | Line 1456 | public class CompletableFutureTest exten
1456		*/
1457		public void testThenApply_exceptionalCompletion() {
1458		for (ExecutionMode m : ExecutionMode.values())
1378	–	for (boolean createIncomplete : new boolean[] { true, false })
1459		{
1460		final CFException ex = new CFException();
1461		final CompletableFuture<Integer> f = new CompletableFuture<>();
1462	<	final IncFunction r = new IncFunction(m);
1463	<	if (!createIncomplete) f.completeExceptionally(ex);
1384	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1385	<	if (createIncomplete) {
1386	<	checkIncomplete(g);
1387	<	f.completeExceptionally(ex);
1388	<	}
1462	>	final IncFunction[] rs = new IncFunction[4];
1463	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1464
1465	<	checkCompletedWithWrappedException(g, ex);
1465	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1466	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1467	>	assertTrue(f.completeExceptionally(ex));
1468	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1469	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1470	>
1471	>	checkCompletedWithWrappedException(h0, ex);
1472	>	checkCompletedWithWrappedException(h1, ex);
1473	>	checkCompletedWithWrappedException(h2, ex);
1474	>	checkCompletedWithWrappedException(h3, ex);
1475		checkCompletedExceptionally(f, ex);
1476	<	r.assertNotInvoked();
1476	>	for (IncFunction r : rs) r.assertNotInvoked();
1477		}}
1478
1479		/**
#	Line 1397 | Line 1481 | public class CompletableFutureTest exten
1481		*/
1482		public void testThenApply_sourceCancelled() {
1483		for (ExecutionMode m : ExecutionMode.values())
1400	–	for (boolean createIncomplete : new boolean[] { true, false })
1484		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1485		{
1486		final CompletableFuture<Integer> f = new CompletableFuture<>();
1487	<	final IncFunction r = new IncFunction(m);
1488	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1406	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1407	<	if (createIncomplete) {
1408	<	checkIncomplete(g);
1409	<	assertTrue(f.cancel(mayInterruptIfRunning));
1410	<	}
1487	>	final IncFunction[] rs = new IncFunction[4];
1488	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1489
1490	<	checkCompletedWithWrappedCancellationException(g);
1490	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1491	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1492	>	assertTrue(f.cancel(mayInterruptIfRunning));
1493	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1494	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1495	>
1496	>	checkCompletedWithWrappedCancellationException(h0);
1497	>	checkCompletedWithWrappedCancellationException(h1);
1498	>	checkCompletedWithWrappedCancellationException(h2);
1499	>	checkCompletedWithWrappedCancellationException(h3);
1500		checkCancelled(f);
1501	<	r.assertNotInvoked();
1501	>	for (IncFunction r : rs) r.assertNotInvoked();
1502		}}
1503
1504		/**
#	Line 1419 | Line 1506 | public class CompletableFutureTest exten
1506		*/
1507		public void testThenApply_actionFailed() {
1508		for (ExecutionMode m : ExecutionMode.values())
1422	–	for (boolean createIncomplete : new boolean[] { true, false })
1509		for (Integer v1 : new Integer[] { 1, null })
1510		{
1511		final CompletableFuture<Integer> f = new CompletableFuture<>();
1512	<	final FailingFunction r = new FailingFunction(m);
1513	<	if (!createIncomplete) assertTrue(f.complete(v1));
1428	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1429	<	if (createIncomplete) {
1430	<	checkIncomplete(g);
1431	<	assertTrue(f.complete(v1));
1432	<	}
1512	>	final FailingFunction[] rs = new FailingFunction[4];
1513	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1514
1515	<	checkCompletedWithWrappedCFException(g);
1515	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1516	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1517	>	assertTrue(f.complete(v1));
1518	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1519	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1520	>
1521	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1522	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1523	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1524	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1525		checkCompletedNormally(f, v1);
1526		}}
1527
#	Line 1440 | Line 1530 | public class CompletableFutureTest exten
1530		*/
1531		public void testThenAccept_normalCompletion() {
1532		for (ExecutionMode m : ExecutionMode.values())
1443	–	for (boolean createIncomplete : new boolean[] { true, false })
1533		for (Integer v1 : new Integer[] { 1, null })
1534		{
1535		final CompletableFuture<Integer> f = new CompletableFuture<>();
1536	<	final NoopConsumer r = new NoopConsumer(m);
1537	<	if (!createIncomplete) assertTrue(f.complete(v1));
1449	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1450	<	if (createIncomplete) {
1451	<	checkIncomplete(g);
1452	<	assertTrue(f.complete(v1));
1453	<	}
1536	>	final NoopConsumer[] rs = new NoopConsumer[4];
1537	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1538
1539	<	checkCompletedNormally(g, null);
1540	<	r.assertValue(v1);
1539	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1540	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1541	>	checkIncomplete(h0);
1542	>	checkIncomplete(h1);
1543	>	assertTrue(f.complete(v1));
1544	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1545	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1546	>
1547	>	checkCompletedNormally(h0, null);
1548	>	checkCompletedNormally(h1, null);
1549	>	checkCompletedNormally(h2, null);
1550	>	checkCompletedNormally(h3, null);
1551		checkCompletedNormally(f, v1);
1552	+	for (NoopConsumer r : rs) r.assertValue(v1);
1553		}}
1554
1555		/**
#	Line 1463 | Line 1558 | public class CompletableFutureTest exten
1558		*/
1559		public void testThenAccept_exceptionalCompletion() {
1560		for (ExecutionMode m : ExecutionMode.values())
1466	–	for (boolean createIncomplete : new boolean[] { true, false })
1561		{
1562		final CFException ex = new CFException();
1563		final CompletableFuture<Integer> f = new CompletableFuture<>();
1564	<	final NoopConsumer r = new NoopConsumer(m);
1565	<	if (!createIncomplete) f.completeExceptionally(ex);
1472	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1473	<	if (createIncomplete) {
1474	<	checkIncomplete(g);
1475	<	f.completeExceptionally(ex);
1476	<	}
1564	>	final NoopConsumer[] rs = new NoopConsumer[4];
1565	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1566
1567	<	checkCompletedWithWrappedException(g, ex);
1567	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1568	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1569	>	assertTrue(f.completeExceptionally(ex));
1570	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1571	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1572	>
1573	>	checkCompletedWithWrappedException(h0, ex);
1574	>	checkCompletedWithWrappedException(h1, ex);
1575	>	checkCompletedWithWrappedException(h2, ex);
1576	>	checkCompletedWithWrappedException(h3, ex);
1577		checkCompletedExceptionally(f, ex);
1578	<	r.assertNotInvoked();
1578	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1579		}}
1580
1581		/**
#	Line 1485 | Line 1583 | public class CompletableFutureTest exten
1583		*/
1584		public void testThenAccept_sourceCancelled() {
1585		for (ExecutionMode m : ExecutionMode.values())
1488	–	for (boolean createIncomplete : new boolean[] { true, false })
1586		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1587		{
1588		final CompletableFuture<Integer> f = new CompletableFuture<>();
1589	<	final NoopConsumer r = new NoopConsumer(m);
1590	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1494	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1495	<	if (createIncomplete) {
1496	<	checkIncomplete(g);
1497	<	assertTrue(f.cancel(mayInterruptIfRunning));
1498	<	}
1589	>	final NoopConsumer[] rs = new NoopConsumer[4];
1590	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1591
1592	<	checkCompletedWithWrappedCancellationException(g);
1592	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1593	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1594	>	assertTrue(f.cancel(mayInterruptIfRunning));
1595	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1596	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1597	>
1598	>	checkCompletedWithWrappedCancellationException(h0);
1599	>	checkCompletedWithWrappedCancellationException(h1);
1600	>	checkCompletedWithWrappedCancellationException(h2);
1601	>	checkCompletedWithWrappedCancellationException(h3);
1602		checkCancelled(f);
1603	<	r.assertNotInvoked();
1603	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1604		}}
1605
1606		/**
#	Line 1507 | Line 1608 | public class CompletableFutureTest exten
1608		*/
1609		public void testThenAccept_actionFailed() {
1610		for (ExecutionMode m : ExecutionMode.values())
1510	–	for (boolean createIncomplete : new boolean[] { true, false })
1611		for (Integer v1 : new Integer[] { 1, null })
1612		{
1613		final CompletableFuture<Integer> f = new CompletableFuture<>();
1614	<	final FailingConsumer r = new FailingConsumer(m);
1615	<	if (!createIncomplete) f.complete(v1);
1516	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1517	<	if (createIncomplete) {
1518	<	checkIncomplete(g);
1519	<	f.complete(v1);
1520	<	}
1614	>	final FailingConsumer[] rs = new FailingConsumer[4];
1615	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1616
1617	<	checkCompletedWithWrappedCFException(g);
1617	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1618	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1619	>	assertTrue(f.complete(v1));
1620	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1621	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1622	>
1623	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1624	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1625	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1626	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1627		checkCompletedNormally(f, v1);
1628		}}
1629
#	Line 1535 | Line 1639 | public class CompletableFutureTest exten
1639		{
1640		final CompletableFuture<Integer> f = new CompletableFuture<>();
1641		final CompletableFuture<Integer> g = new CompletableFuture<>();
1642	<	final SubtractFunction r1 = new SubtractFunction(m);
1643	<	final SubtractFunction r2 = new SubtractFunction(m);
1540	<	final SubtractFunction r3 = new SubtractFunction(m);
1642	>	final SubtractFunction[] rs = new SubtractFunction[6];
1643	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1644
1645		final CompletableFuture<Integer> fst =  fFirst ? f : g;
1646		final CompletableFuture<Integer> snd = !fFirst ? f : g;
1647		final Integer w1 =  fFirst ? v1 : v2;
1648		final Integer w2 = !fFirst ? v1 : v2;
1649
1650	<	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1650	>	final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1651	>	final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1652		assertTrue(fst.complete(w1));
1653	<	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1654	<	checkIncomplete(h1);
1655	<	checkIncomplete(h2);
1656	<	r1.assertNotInvoked();
1657	<	r2.assertNotInvoked();
1653	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1654	>	final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1655	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1656	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1657	>	checkCompletedNormally(h1, subtract(w1, w1));
1658	>	checkCompletedNormally(h3, subtract(w1, w1));
1659	>	rs[1].assertValue(subtract(w1, w1));
1660	>	rs[3].assertValue(subtract(w1, w1));
1661		assertTrue(snd.complete(w2));
1662	<	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1662	>	final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1663
1664	<	checkCompletedNormally(h1, subtract(v1, v2));
1664	>	checkCompletedNormally(h0, subtract(v1, v2));
1665		checkCompletedNormally(h2, subtract(v1, v2));
1666	<	checkCompletedNormally(h3, subtract(v1, v2));
1667	<	r1.assertValue(subtract(v1, v2));
1668	<	r2.assertValue(subtract(v1, v2));
1669	<	r3.assertValue(subtract(v1, v2));
1666	>	checkCompletedNormally(h4, subtract(v1, v2));
1667	>	rs[0].assertValue(subtract(v1, v2));
1668	>	rs[2].assertValue(subtract(v1, v2));
1669	>	rs[4].assertValue(subtract(v1, v2));
1670	>
1671		checkCompletedNormally(f, v1);
1672		checkCompletedNormally(g, v2);
1673		}}
#	Line 1677 | Line 1785 | public class CompletableFutureTest exten
1785		assertTrue(snd.complete(w2));
1786		final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1787
1788	<	checkCompletedWithWrappedCFException(h1);
1789	<	checkCompletedWithWrappedCFException(h2);
1790	<	checkCompletedWithWrappedCFException(h3);
1788	>	checkCompletedWithWrappedException(h1, r1.ex);
1789	>	checkCompletedWithWrappedException(h2, r2.ex);
1790	>	checkCompletedWithWrappedException(h3, r3.ex);
1791	>	r1.assertInvoked();
1792	>	r2.assertInvoked();
1793	>	r3.assertInvoked();
1794		checkCompletedNormally(f, v1);
1795		checkCompletedNormally(g, v2);
1796		}}
#	Line 1838 | Line 1949 | public class CompletableFutureTest exten
1949		assertTrue(snd.complete(w2));
1950		final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1951
1952	<	checkCompletedWithWrappedCFException(h1);
1953	<	checkCompletedWithWrappedCFException(h2);
1954	<	checkCompletedWithWrappedCFException(h3);
1952	>	checkCompletedWithWrappedException(h1, r1.ex);
1953	>	checkCompletedWithWrappedException(h2, r2.ex);
1954	>	checkCompletedWithWrappedException(h3, r3.ex);
1955	>	r1.assertInvoked();
1956	>	r2.assertInvoked();
1957	>	r3.assertInvoked();
1958		checkCompletedNormally(f, v1);
1959		checkCompletedNormally(g, v2);
1960		}}
#	Line 1851 | Line 1965 | public class CompletableFutureTest exten
1965		*/
1966		public void testRunAfterBoth_normalCompletion() {
1967		for (ExecutionMode m : ExecutionMode.values())
1854	–	for (boolean createIncomplete : new boolean[] { true, false })
1968		for (boolean fFirst : new boolean[] { true, false })
1969		for (Integer v1 : new Integer[] { 1, null })
1970		for (Integer v2 : new Integer[] { 2, null })
1971		{
1972		final CompletableFuture<Integer> f = new CompletableFuture<>();
1973		final CompletableFuture<Integer> g = new CompletableFuture<>();
1974	<	final Noop r = new Noop(m);
1974	>	final Noop r1 = new Noop(m);
1975	>	final Noop r2 = new Noop(m);
1976	>	final Noop r3 = new Noop(m);
1977
1978	<	assertTrue(fFirst ? f.complete(v1) : g.complete(v2));
1979	<	if (!createIncomplete)
1980	<	assertTrue(!fFirst ? f.complete(v1) : g.complete(v2));
1981	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1867	<	if (createIncomplete) {
1868	<	checkIncomplete(h);
1869	<	r.assertNotInvoked();
1870	<	assertTrue(!fFirst ? f.complete(v1) : g.complete(v2));
1871	<	}
1978	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1979	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1980	>	final Integer w1 =  fFirst ? v1 : v2;
1981	>	final Integer w2 = !fFirst ? v1 : v2;
1982
1983	<	checkCompletedNormally(h, null);
1984	<	r.assertInvoked();
1983	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1984	>	assertTrue(fst.complete(w1));
1985	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1986	>	checkIncomplete(h1);
1987	>	checkIncomplete(h2);
1988	>	r1.assertNotInvoked();
1989	>	r2.assertNotInvoked();
1990	>	assertTrue(snd.complete(w2));
1991	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
1992	>
1993	>	checkCompletedNormally(h1, null);
1994	>	checkCompletedNormally(h2, null);
1995	>	checkCompletedNormally(h3, null);
1996	>	r1.assertInvoked();
1997	>	r2.assertInvoked();
1998	>	r3.assertInvoked();
1999		checkCompletedNormally(f, v1);
2000		checkCompletedNormally(g, v2);
2001		}}
#	Line 1880 | Line 2004 | public class CompletableFutureTest exten
2004		* runAfterBoth result completes exceptionally after exceptional
2005		* completion of either source
2006		*/
2007	<	public void testRunAfterBoth_exceptionalCompletion() {
2007	>	public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
2008		for (ExecutionMode m : ExecutionMode.values())
1885	–	for (boolean createIncomplete : new boolean[] { true, false })
2009		for (boolean fFirst : new boolean[] { true, false })
2010	+	for (boolean failFirst : new boolean[] { true, false })
2011		for (Integer v1 : new Integer[] { 1, null })
2012		{
2013		final CompletableFuture<Integer> f = new CompletableFuture<>();
2014		final CompletableFuture<Integer> g = new CompletableFuture<>();
2015		final CFException ex = new CFException();
2016	<	final Noop r = new Noop(m);
2016	>	final Noop r1 = new Noop(m);
2017	>	final Noop r2 = new Noop(m);
2018	>	final Noop r3 = new Noop(m);
2019
2020	<	assertTrue((fFirst ? f : g).complete(v1));
2021	<	if (!createIncomplete)
2022	<	assertTrue((!fFirst ? f : g).completeExceptionally(ex));
2023	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2024	<	if (createIncomplete) {
2025	<	checkIncomplete(h);
2026	<	assertTrue((!fFirst ? f : g).completeExceptionally(ex));
2027	<	}
2020	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2021	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2022	>	final Callable<Boolean> complete1 = failFirst ?
2023	>	() -> fst.completeExceptionally(ex) :
2024	>	() -> fst.complete(v1);
2025	>	final Callable<Boolean> complete2 = failFirst ?
2026	>	() -> snd.complete(v1) :
2027	>	() -> snd.completeExceptionally(ex);
2028
2029	<	checkCompletedWithWrappedException(h, ex);
2030	<	r.assertNotInvoked();
2031	<	checkCompletedNormally(fFirst ? f : g, v1);
2032	<	checkCompletedExceptionally(!fFirst ? f : g, ex);
2029	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2030	>	assertTrue(complete1.call());
2031	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2032	>	checkIncomplete(h1);
2033	>	checkIncomplete(h2);
2034	>	assertTrue(complete2.call());
2035	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2036	>
2037	>	checkCompletedWithWrappedException(h1, ex);
2038	>	checkCompletedWithWrappedException(h2, ex);
2039	>	checkCompletedWithWrappedException(h3, ex);
2040	>	r1.assertNotInvoked();
2041	>	r2.assertNotInvoked();
2042	>	r3.assertNotInvoked();
2043	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2044	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
2045		}}
2046
2047		/**
2048		* runAfterBoth result completes exceptionally if either source cancelled
2049		*/
2050	<	public void testRunAfterBoth_sourceCancelled() {
2050	>	public void testRunAfterBoth_sourceCancelled() throws Throwable {
2051		for (ExecutionMode m : ExecutionMode.values())
2052		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1915	–	for (boolean createIncomplete : new boolean[] { true, false })
2053		for (boolean fFirst : new boolean[] { true, false })
2054	+	for (boolean failFirst : new boolean[] { true, false })
2055		for (Integer v1 : new Integer[] { 1, null })
2056		{
2057		final CompletableFuture<Integer> f = new CompletableFuture<>();
2058		final CompletableFuture<Integer> g = new CompletableFuture<>();
2059	<	final Noop r = new Noop(m);
2059	>	final Noop r1 = new Noop(m);
2060	>	final Noop r2 = new Noop(m);
2061	>	final Noop r3 = new Noop(m);
2062
2063	<	assertTrue((fFirst ? f : g).complete(v1));
2064	<	if (!createIncomplete)
2065	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
2066	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2067	<	if (createIncomplete) {
2068	<	checkIncomplete(h);
2069	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
2070	<	}
2063	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2064	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2065	>	final Callable<Boolean> complete1 = failFirst ?
2066	>	() -> fst.cancel(mayInterruptIfRunning) :
2067	>	() -> fst.complete(v1);
2068	>	final Callable<Boolean> complete2 = failFirst ?
2069	>	() -> snd.complete(v1) :
2070	>	() -> snd.cancel(mayInterruptIfRunning);
2071
2072	<	checkCompletedWithWrappedCancellationException(h);
2073	<	checkCancelled(!fFirst ? f : g);
2074	<	r.assertNotInvoked();
2075	<	checkCompletedNormally(fFirst ? f : g, v1);
2072	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2073	>	assertTrue(complete1.call());
2074	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2075	>	checkIncomplete(h1);
2076	>	checkIncomplete(h2);
2077	>	assertTrue(complete2.call());
2078	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2079	>
2080	>	checkCompletedWithWrappedCancellationException(h1);
2081	>	checkCompletedWithWrappedCancellationException(h2);
2082	>	checkCompletedWithWrappedCancellationException(h3);
2083	>	r1.assertNotInvoked();
2084	>	r2.assertNotInvoked();
2085	>	r3.assertNotInvoked();
2086	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2087	>	checkCancelled(failFirst ? fst : snd);
2088		}}
2089
2090		/**
#	Line 1948 | Line 2100 | public class CompletableFutureTest exten
2100		final CompletableFuture<Integer> g = new CompletableFuture<>();
2101		final FailingRunnable r1 = new FailingRunnable(m);
2102		final FailingRunnable r2 = new FailingRunnable(m);
2103	+	final FailingRunnable r3 = new FailingRunnable(m);
2104
2105	<	CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2106	<	assertTrue(fFirst ? f.complete(v1) : g.complete(v2));
2107	<	assertTrue(!fFirst ? f.complete(v1) : g.complete(v2));
2108	<	CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2105	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2106	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2107	>	final Integer w1 =  fFirst ? v1 : v2;
2108	>	final Integer w2 = !fFirst ? v1 : v2;
2109	>
2110	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2111	>	assertTrue(fst.complete(w1));
2112	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2113	>	assertTrue(snd.complete(w2));
2114	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2115
2116	<	checkCompletedWithWrappedCFException(h1);
2117	<	checkCompletedWithWrappedCFException(h2);
2116	>	checkCompletedWithWrappedException(h1, r1.ex);
2117	>	checkCompletedWithWrappedException(h2, r2.ex);
2118	>	checkCompletedWithWrappedException(h3, r3.ex);
2119	>	r1.assertInvoked();
2120	>	r2.assertInvoked();
2121	>	r3.assertInvoked();
2122		checkCompletedNormally(f, v1);
2123		checkCompletedNormally(g, v2);
2124		}}
#	Line 2242 | Line 2405 | public class CompletableFutureTest exten
2405		f.complete(v1);
2406		final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2407		final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2408	<	checkCompletedWithWrappedCFException(h0);
2409	<	checkCompletedWithWrappedCFException(h1);
2410	<	checkCompletedWithWrappedCFException(h2);
2411	<	checkCompletedWithWrappedCFException(h3);
2408	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2409	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2410	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2411	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2412		for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2413
2414		g.complete(v2);
#	Line 2254 | Line 2417 | public class CompletableFutureTest exten
2417		final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2418		final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2419
2420	<	checkCompletedWithWrappedCFException(h4);
2420	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2421		assertTrue(Objects.equals(v1, rs[4].value) ||
2422		Objects.equals(v2, rs[4].value));
2423	<	checkCompletedWithWrappedCFException(h5);
2423	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2424		assertTrue(Objects.equals(v1, rs[5].value) ||
2425		Objects.equals(v2, rs[5].value));
2426
#	Line 2395 | Line 2558 | public class CompletableFutureTest exten
2558
2559		// unspecified behavior - both source completions available
2560		try {
2561	<	assertEquals(null, h0.join());
2561	>	assertNull(h0.join());
2562		rs[0].assertValue(v1);
2563		} catch (CompletionException ok) {
2564		checkCompletedWithWrappedException(h0, ex);
2565		rs[0].assertNotInvoked();
2566		}
2567		try {
2568	<	assertEquals(null, h1.join());
2568	>	assertNull(h1.join());
2569		rs[1].assertValue(v1);
2570		} catch (CompletionException ok) {
2571		checkCompletedWithWrappedException(h1, ex);
2572		rs[1].assertNotInvoked();
2573		}
2574		try {
2575	<	assertEquals(null, h2.join());
2575	>	assertNull(h2.join());
2576		rs[2].assertValue(v1);
2577		} catch (CompletionException ok) {
2578		checkCompletedWithWrappedException(h2, ex);
2579		rs[2].assertNotInvoked();
2580		}
2581		try {
2582	<	assertEquals(null, h3.join());
2582	>	assertNull(h3.join());
2583		rs[3].assertValue(v1);
2584		} catch (CompletionException ok) {
2585		checkCompletedWithWrappedException(h3, ex);
#	Line 2501 | Line 2664 | public class CompletableFutureTest exten
2664		f.complete(v1);
2665		final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2666		final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2667	<	checkCompletedWithWrappedCFException(h0);
2668	<	checkCompletedWithWrappedCFException(h1);
2669	<	checkCompletedWithWrappedCFException(h2);
2670	<	checkCompletedWithWrappedCFException(h3);
2667	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2668	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2669	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2670	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2671		for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2672
2673		g.complete(v2);
#	Line 2513 | Line 2676 | public class CompletableFutureTest exten
2676		final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2677		final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2678
2679	<	checkCompletedWithWrappedCFException(h4);
2679	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2680		assertTrue(Objects.equals(v1, rs[4].value) ||
2681		Objects.equals(v2, rs[4].value));
2682	<	checkCompletedWithWrappedCFException(h5);
2682	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2683		assertTrue(Objects.equals(v1, rs[5].value) ||
2684		Objects.equals(v2, rs[5].value));
2685
#	Line 2532 | Line 2695 | public class CompletableFutureTest exten
2695		for (ExecutionMode m : ExecutionMode.values())
2696		for (Integer v1 : new Integer[] { 1, null })
2697		for (Integer v2 : new Integer[] { 2, null })
2698	+	for (boolean pushNop : new boolean[] { true, false })
2699		{
2700		final CompletableFuture<Integer> f = new CompletableFuture<>();
2701		final CompletableFuture<Integer> g = new CompletableFuture<>();
#	Line 2544 | Line 2708 | public class CompletableFutureTest exten
2708		checkIncomplete(h1);
2709		rs[0].assertNotInvoked();
2710		rs[1].assertNotInvoked();
2711	+	if (pushNop) {          // ad hoc test of intra-completion interference
2712	+	m.thenRun(f, () -> {});
2713	+	m.thenRun(g, () -> {});
2714	+	}
2715		f.complete(v1);
2716		checkCompletedNormally(h0, null);
2717		checkCompletedNormally(h1, null);
#	Line 2650 | Line 2818 | public class CompletableFutureTest exten
2818
2819		// unspecified behavior - both source completions available
2820		try {
2821	<	assertEquals(null, h0.join());
2821	>	assertNull(h0.join());
2822		rs[0].assertInvoked();
2823		} catch (CompletionException ok) {
2824		checkCompletedWithWrappedException(h0, ex);
2825		rs[0].assertNotInvoked();
2826		}
2827		try {
2828	<	assertEquals(null, h1.join());
2828	>	assertNull(h1.join());
2829		rs[1].assertInvoked();
2830		} catch (CompletionException ok) {
2831		checkCompletedWithWrappedException(h1, ex);
2832		rs[1].assertNotInvoked();
2833		}
2834		try {
2835	<	assertEquals(null, h2.join());
2835	>	assertNull(h2.join());
2836		rs[2].assertInvoked();
2837		} catch (CompletionException ok) {
2838		checkCompletedWithWrappedException(h2, ex);
2839		rs[2].assertNotInvoked();
2840		}
2841		try {
2842	<	assertEquals(null, h3.join());
2842	>	assertNull(h3.join());
2843		rs[3].assertInvoked();
2844		} catch (CompletionException ok) {
2845		checkCompletedWithWrappedException(h3, ex);
#	Line 2756 | Line 2924 | public class CompletableFutureTest exten
2924		assertTrue(f.complete(v1));
2925		final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2926		final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2927	<	checkCompletedWithWrappedCFException(h0);
2928	<	checkCompletedWithWrappedCFException(h1);
2929	<	checkCompletedWithWrappedCFException(h2);
2930	<	checkCompletedWithWrappedCFException(h3);
2927	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2928	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2929	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2930	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2931		for (int i = 0; i < 4; i++) rs[i].assertInvoked();
2932		assertTrue(g.complete(v2));
2933		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2934		final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2935	<	checkCompletedWithWrappedCFException(h4);
2936	<	checkCompletedWithWrappedCFException(h5);
2935	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2936	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2937
2938		checkCompletedNormally(f, v1);
2939		checkCompletedNormally(g, v2);
#	Line 2826 | Line 2994 | public class CompletableFutureTest exten
2994		final CompletableFuture<Integer> g = m.thenCompose(f, r);
2995		if (createIncomplete) assertTrue(f.complete(v1));
2996
2997	<	checkCompletedWithWrappedCFException(g);
2997	>	checkCompletedWithWrappedException(g, r.ex);
2998		checkCompletedNormally(f, v1);
2999		}}
3000
#	Line 2851 | Line 3019 | public class CompletableFutureTest exten
3019		checkCancelled(f);
3020		}}
3021
3022	+	/**
3023	+	* thenCompose result completes exceptionally if the result of the action does
3024	+	*/
3025	+	public void testThenCompose_actionReturnsFailingFuture() {
3026	+	for (ExecutionMode m : ExecutionMode.values())
3027	+	for (int order = 0; order < 6; order++)
3028	+	for (Integer v1 : new Integer[] { 1, null })
3029	+	{
3030	+	final CFException ex = new CFException();
3031	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3032	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
3033	+	final CompletableFuture<Integer> h;
3034	+	// Test all permutations of orders
3035	+	switch (order) {
3036	+	case 0:
3037	+	assertTrue(f.complete(v1));
3038	+	assertTrue(g.completeExceptionally(ex));
3039	+	h = m.thenCompose(f, (x -> g));
3040	+	break;
3041	+	case 1:
3042	+	assertTrue(f.complete(v1));
3043	+	h = m.thenCompose(f, (x -> g));
3044	+	assertTrue(g.completeExceptionally(ex));
3045	+	break;
3046	+	case 2:
3047	+	assertTrue(g.completeExceptionally(ex));
3048	+	assertTrue(f.complete(v1));
3049	+	h = m.thenCompose(f, (x -> g));
3050	+	break;
3051	+	case 3:
3052	+	assertTrue(g.completeExceptionally(ex));
3053	+	h = m.thenCompose(f, (x -> g));
3054	+	assertTrue(f.complete(v1));
3055	+	break;
3056	+	case 4:
3057	+	h = m.thenCompose(f, (x -> g));
3058	+	assertTrue(f.complete(v1));
3059	+	assertTrue(g.completeExceptionally(ex));
3060	+	break;
3061	+	case 5:
3062	+	h = m.thenCompose(f, (x -> g));
3063	+	assertTrue(f.complete(v1));
3064	+	assertTrue(g.completeExceptionally(ex));
3065	+	break;
3066	+	default: throw new AssertionError();
3067	+	}
3068	+
3069	+	checkCompletedExceptionally(g, ex);
3070	+	checkCompletedWithWrappedException(h, ex);
3071	+	checkCompletedNormally(f, v1);
3072	+	}}
3073	+
3074		// other static methods
3075
3076		/**
#	Line 2867 | Line 3087 | public class CompletableFutureTest exten
3087		* when all components complete normally
3088		*/
3089		public void testAllOf_normal() throws Exception {
3090	<	for (int k = 1; k < 20; ++k) {
3090	>	for (int k = 1; k < 10; k++) {
3091		CompletableFuture<Integer>[] fs
3092		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3093	<	for (int i = 0; i < k; ++i)
3093	>	for (int i = 0; i < k; i++)
3094		fs[i] = new CompletableFuture<>();
3095		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3096	<	for (int i = 0; i < k; ++i) {
3096	>	for (int i = 0; i < k; i++) {
3097		checkIncomplete(f);
3098		checkIncomplete(CompletableFuture.allOf(fs));
3099		fs[i].complete(one);
#	Line 2883 | Line 3103 | public class CompletableFutureTest exten
3103		}
3104		}
3105
3106	<	public void testAllOf_backwards() throws Exception {
3107	<	for (int k = 1; k < 20; ++k) {
3106	>	public void testAllOf_normal_backwards() throws Exception {
3107	>	for (int k = 1; k < 10; k++) {
3108		CompletableFuture<Integer>[] fs
3109		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3110	<	for (int i = 0; i < k; ++i)
3110	>	for (int i = 0; i < k; i++)
3111		fs[i] = new CompletableFuture<>();
3112		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3113		for (int i = k - 1; i >= 0; i--) {
#	Line 2900 | Line 3120 | public class CompletableFutureTest exten
3120		}
3121		}
3122
3123	+	public void testAllOf_exceptional() throws Exception {
3124	+	for (int k = 1; k < 10; k++) {
3125	+	CompletableFuture<Integer>[] fs
3126	+	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3127	+	CFException ex = new CFException();
3128	+	for (int i = 0; i < k; i++)
3129	+	fs[i] = new CompletableFuture<>();
3130	+	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3131	+	for (int i = 0; i < k; i++) {
3132	+	checkIncomplete(f);
3133	+	checkIncomplete(CompletableFuture.allOf(fs));
3134	+	if (i != k / 2) {
3135	+	fs[i].complete(i);
3136	+	checkCompletedNormally(fs[i], i);
3137	+	} else {
3138	+	fs[i].completeExceptionally(ex);
3139	+	checkCompletedExceptionally(fs[i], ex);
3140	+	}
3141	+	}
3142	+	checkCompletedWithWrappedException(f, ex);
3143	+	checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3144	+	}
3145	+	}
3146	+
3147		/**
3148		* anyOf(no component futures) returns an incomplete future
3149		*/
3150		public void testAnyOf_empty() throws Exception {
3151	+	for (Integer v1 : new Integer[] { 1, null })
3152	+	{
3153		CompletableFuture<Object> f = CompletableFuture.anyOf();
3154		checkIncomplete(f);
3155	<	}
3155	>
3156	>	f.complete(v1);
3157	>	checkCompletedNormally(f, v1);
3158	>	}}
3159
3160		/**
3161		* anyOf returns a future completed normally with a value when
3162		* a component future does
3163		*/
3164		public void testAnyOf_normal() throws Exception {
3165	<	for (int k = 0; k < 10; ++k) {
3165	>	for (int k = 0; k < 10; k++) {
3166		CompletableFuture[] fs = new CompletableFuture[k];
3167	<	for (int i = 0; i < k; ++i)
3167	>	for (int i = 0; i < k; i++)
3168		fs[i] = new CompletableFuture<>();
3169		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3170		checkIncomplete(f);
3171	<	for (int i = 0; i < k; ++i) {
3172	<	fs[i].complete(one);
3173	<	checkCompletedNormally(f, one);
3174	<	checkCompletedNormally(CompletableFuture.anyOf(fs), one);
3171	>	for (int i = 0; i < k; i++) {
3172	>	fs[i].complete(i);
3173	>	checkCompletedNormally(f, 0);
3174	>	int x = (int) CompletableFuture.anyOf(fs).join();
3175	>	assertTrue(0 <= x && x <= i);
3176	>	}
3177	>	}
3178	>	}
3179	>	public void testAnyOf_normal_backwards() throws Exception {
3180	>	for (int k = 0; k < 10; k++) {
3181	>	CompletableFuture[] fs = new CompletableFuture[k];
3182	>	for (int i = 0; i < k; i++)
3183	>	fs[i] = new CompletableFuture<>();
3184	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3185	>	checkIncomplete(f);
3186	>	for (int i = k - 1; i >= 0; i--) {
3187	>	fs[i].complete(i);
3188	>	checkCompletedNormally(f, k - 1);
3189	>	int x = (int) CompletableFuture.anyOf(fs).join();
3190	>	assertTrue(i <= x && x <= k - 1);
3191		}
3192		}
3193		}
#	Line 2931 | Line 3196 | public class CompletableFutureTest exten
3196		* anyOf result completes exceptionally when any component does.
3197		*/
3198		public void testAnyOf_exceptional() throws Exception {
3199	<	for (int k = 0; k < 10; ++k) {
3199	>	for (int k = 0; k < 10; k++) {
3200		CompletableFuture[] fs = new CompletableFuture[k];
3201	<	for (int i = 0; i < k; ++i)
3201	>	CFException[] exs = new CFException[k];
3202	>	for (int i = 0; i < k; i++) {
3203		fs[i] = new CompletableFuture<>();
3204	+	exs[i] = new CFException();
3205	+	}
3206		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3207		checkIncomplete(f);
3208	<	for (int i = 0; i < k; ++i) {
3209	<	fs[i].completeExceptionally(new CFException());
3210	<	checkCompletedWithWrappedCFException(f);
3208	>	for (int i = 0; i < k; i++) {
3209	>	fs[i].completeExceptionally(exs[i]);
3210	>	checkCompletedWithWrappedException(f, exs[0]);
3211	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3212	>	}
3213	>	}
3214	>	}
3215	>
3216	>	public void testAnyOf_exceptional_backwards() throws Exception {
3217	>	for (int k = 0; k < 10; k++) {
3218	>	CompletableFuture[] fs = new CompletableFuture[k];
3219	>	CFException[] exs = new CFException[k];
3220	>	for (int i = 0; i < k; i++) {
3221	>	fs[i] = new CompletableFuture<>();
3222	>	exs[i] = new CFException();
3223	>	}
3224	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3225	>	checkIncomplete(f);
3226	>	for (int i = k - 1; i >= 0; i--) {
3227	>	fs[i].completeExceptionally(exs[i]);
3228	>	checkCompletedWithWrappedException(f, exs[k - 1]);
3229		checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3230		}
3231		}
#	Line 2948 | Line 3234 | public class CompletableFutureTest exten
3234		/**
3235		* Completion methods throw NullPointerException with null arguments
3236		*/
3237	+	@SuppressWarnings("FutureReturnValueIgnored")
3238		public void testNPE() {
3239		CompletableFuture<Integer> f = new CompletableFuture<>();
3240		CompletableFuture<Integer> g = new CompletableFuture<>();
3241		CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
2955	–	CompletableFuture<?> h;
3242		ThreadExecutor exec = new ThreadExecutor();
3243
3244		Runnable[] throwingActions = {
3245		() -> CompletableFuture.supplyAsync(null),
3246		() -> CompletableFuture.supplyAsync(null, exec),
3247	<	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.DEFAULT, 42), null),
3247	>	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3248
3249		() -> CompletableFuture.runAsync(null),
3250		() -> CompletableFuture.runAsync(null, exec),
#	Line 2968 | Line 3254 | public class CompletableFutureTest exten
3254
3255		() -> f.thenApply(null),
3256		() -> f.thenApplyAsync(null),
3257	<	() -> f.thenApplyAsync((x) -> x, null),
3257	>	() -> f.thenApplyAsync(x -> x, null),
3258		() -> f.thenApplyAsync(null, exec),
3259
3260		() -> f.thenAccept(null),
3261		() -> f.thenAcceptAsync(null),
3262	<	() -> f.thenAcceptAsync((x) -> {} , null),
3262	>	() -> f.thenAcceptAsync(x -> {} , null),
3263		() -> f.thenAcceptAsync(null, exec),
3264
3265		() -> f.thenRun(null),
#	Line 3008 | Line 3294 | public class CompletableFutureTest exten
3294		() -> f.applyToEither(g, null),
3295		() -> f.applyToEitherAsync(g, null),
3296		() -> f.applyToEitherAsync(g, null, exec),
3297	<	() -> f.applyToEither(nullFuture, (x) -> x),
3298	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x),
3299	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
3300	<	() -> f.applyToEitherAsync(g, (x) -> x, null),
3297	>	() -> f.applyToEither(nullFuture, x -> x),
3298	>	() -> f.applyToEitherAsync(nullFuture, x -> x),
3299	>	() -> f.applyToEitherAsync(nullFuture, x -> x, exec),
3300	>	() -> f.applyToEitherAsync(g, x -> x, null),
3301
3302		() -> f.acceptEither(g, null),
3303		() -> f.acceptEitherAsync(g, null),
3304		() -> f.acceptEitherAsync(g, null, exec),
3305	<	() -> f.acceptEither(nullFuture, (x) -> {}),
3306	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}),
3307	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
3308	<	() -> f.acceptEitherAsync(g, (x) -> {}, null),
3305	>	() -> f.acceptEither(nullFuture, x -> {}),
3306	>	() -> f.acceptEitherAsync(nullFuture, x -> {}),
3307	>	() -> f.acceptEitherAsync(nullFuture, x -> {}, exec),
3308	>	() -> f.acceptEitherAsync(g, x -> {}, null),
3309
3310		() -> f.runAfterEither(g, null),
3311		() -> f.runAfterEitherAsync(g, null),
#	Line 3049 | Line 3335 | public class CompletableFutureTest exten
3335		() -> CompletableFuture.anyOf(null, f),
3336
3337		() -> f.obtrudeException(null),
3338	+
3339	+	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3340	+	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3341	+	() -> CompletableFuture.delayedExecutor(1L, null),
3342	+
3343	+	() -> f.orTimeout(1L, null),
3344	+	() -> f.completeOnTimeout(42, 1L, null),
3345	+
3346	+	() -> CompletableFuture.failedFuture(null),
3347	+	() -> CompletableFuture.failedStage(null),
3348		};
3349
3350		assertThrows(NullPointerException.class, throwingActions);
#	Line 3056 | Line 3352 | public class CompletableFutureTest exten
3352		}
3353
3354		/**
3355	+	* Test submissions to an executor that rejects all tasks.
3356	+	*/
3357	+	public void testRejectingExecutor() {
3358	+	for (Integer v : new Integer[] { 1, null })
3359	+	{
3360	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3361	+
3362	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3363	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3364	+
3365	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3366	+
3367	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3368	+	srcs.add(complete);
3369	+	srcs.add(incomplete);
3370	+
3371	+	for (CompletableFuture<Integer> src : srcs) {
3372	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3373	+	fs.add(src.thenRunAsync(() -> {}, e));
3374	+	fs.add(src.thenAcceptAsync(z -> {}, e));
3375	+	fs.add(src.thenApplyAsync(z -> z, e));
3376	+
3377	+	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3378	+	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3379	+	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3380	+
3381	+	fs.add(src.applyToEitherAsync(src, z -> z, e));
3382	+	fs.add(src.acceptEitherAsync(src, z -> {}, e));
3383	+	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3384	+
3385	+	fs.add(src.thenComposeAsync(z -> null, e));
3386	+	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3387	+	fs.add(src.handleAsync((z, t) -> null, e));
3388	+
3389	+	for (CompletableFuture<?> future : fs) {
3390	+	if (src.isDone())
3391	+	checkCompletedWithWrappedException(future, e.ex);
3392	+	else
3393	+	checkIncomplete(future);
3394	+	}
3395	+	futures.addAll(fs);
3396	+	}
3397	+
3398	+	{
3399	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3400	+
3401	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3402	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3403	+
3404	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3405	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3406	+
3407	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3408	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3409	+
3410	+	for (CompletableFuture<?> future : fs)
3411	+	checkIncomplete(future);
3412	+	futures.addAll(fs);
3413	+	}
3414	+
3415	+	{
3416	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3417	+
3418	+	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3419	+	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3420	+
3421	+	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3422	+	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3423	+
3424	+	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3425	+	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3426	+
3427	+	for (CompletableFuture<?> future : fs)
3428	+	checkCompletedWithWrappedException(future, e.ex);
3429	+	futures.addAll(fs);
3430	+	}
3431	+
3432	+	incomplete.complete(v);
3433	+
3434	+	for (CompletableFuture<?> future : futures)
3435	+	checkCompletedWithWrappedException(future, e.ex);
3436	+
3437	+	assertEquals(futures.size(), e.count.get());
3438	+	}}
3439	+
3440	+	/**
3441	+	* Test submissions to an executor that rejects all tasks, but
3442	+	* should never be invoked because the dependent future is
3443	+	* explicitly completed.
3444	+	*/
3445	+	public void testRejectingExecutorNeverInvoked() {
3446	+	for (Integer v : new Integer[] { 1, null })
3447	+	{
3448	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3449	+
3450	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3451	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3452	+
3453	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3454	+
3455	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3456	+	srcs.add(complete);
3457	+	srcs.add(incomplete);
3458	+
3459	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3460	+	fs.add(incomplete.thenRunAsync(() -> {}, e));
3461	+	fs.add(incomplete.thenAcceptAsync(z -> {}, e));
3462	+	fs.add(incomplete.thenApplyAsync(z -> z, e));
3463	+
3464	+	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3465	+	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3466	+	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3467	+
3468	+	fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e));
3469	+	fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e));
3470	+	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3471	+
3472	+	fs.add(incomplete.thenComposeAsync(z -> null, e));
3473	+	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3474	+	fs.add(incomplete.handleAsync((z, t) -> null, e));
3475	+
3476	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3477	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3478	+
3479	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3480	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3481	+
3482	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3483	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3484	+
3485	+	for (CompletableFuture<?> future : fs)
3486	+	checkIncomplete(future);
3487	+
3488	+	for (CompletableFuture<?> future : fs)
3489	+	future.complete(null);
3490	+
3491	+	incomplete.complete(v);
3492	+
3493	+	for (CompletableFuture<?> future : fs)
3494	+	checkCompletedNormally(future, null);
3495	+
3496	+	assertEquals(0, e.count.get());
3497	+	}}
3498	+
3499	+	/**
3500		* toCompletableFuture returns this CompletableFuture.
3501		*/
3502		public void testToCompletableFuture() {
#	Line 3063 | Line 3504 | public class CompletableFutureTest exten
3504		assertSame(f, f.toCompletableFuture());
3505		}
3506
3507	<	//     public void testRunAfterEither_resultDeterminedAtTimeOfCreation() {
3508	<	//         for (ExecutionMode m : ExecutionMode.values())
3509	<	//         for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3510	<	//         for (Integer v1 : new Integer[] { 1, null })
3511	<	//     {
3512	<	//         final CompletableFuture<Integer> f = new CompletableFuture<>();
3513	<	//         final CompletableFuture<Integer> g = new CompletableFuture<>();
3514	<	//         final Noop[] rs = new Noop[2];
3515	<	//         for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
3516	<	//         f.complete(v1);
3517	<	//         final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
3518	<	//         final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
3519	<	//         assertTrue(g.cancel(mayInterruptIfRunning));
3520	<	//         checkCompletedNormally(h0, null);
3521	<	//         checkCompletedNormally(h1, null);
3522	<	//         for (Noop r : rs) r.assertInvoked();
3523	<	//     }}
3507	>	// jdk9
3508	>
3509	>	/**
3510	>	* newIncompleteFuture returns an incomplete CompletableFuture
3511	>	*/
3512	>	public void testNewIncompleteFuture() {
3513	>	for (Integer v1 : new Integer[] { 1, null })
3514	>	{
3515	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3516	>	CompletableFuture<Integer> g = f.newIncompleteFuture();
3517	>	checkIncomplete(f);
3518	>	checkIncomplete(g);
3519	>	f.complete(v1);
3520	>	checkCompletedNormally(f, v1);
3521	>	checkIncomplete(g);
3522	>	g.complete(v1);
3523	>	checkCompletedNormally(g, v1);
3524	>	assertSame(g.getClass(), CompletableFuture.class);
3525	>	}}
3526	>
3527	>	/**
3528	>	* completedStage returns a completed CompletionStage
3529	>	*/
3530	>	public void testCompletedStage() {
3531	>	AtomicInteger x = new AtomicInteger(0);
3532	>	AtomicReference<Throwable> r = new AtomicReference<>();
3533	>	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3534	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3535	>	assertEquals(x.get(), 1);
3536	>	assertNull(r.get());
3537	>	}
3538	>
3539	>	/**
3540	>	* defaultExecutor by default returns the commonPool if
3541	>	* it supports more than one thread.
3542	>	*/
3543	>	public void testDefaultExecutor() {
3544	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3545	>	Executor e = f.defaultExecutor();
3546	>	Executor c = ForkJoinPool.commonPool();
3547	>	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3548	>	assertSame(e, c);
3549	>	else
3550	>	assertNotSame(e, c);
3551	>	}
3552	>
3553	>	/**
3554	>	* failedFuture returns a CompletableFuture completed
3555	>	* exceptionally with the given Exception
3556	>	*/
3557	>	public void testFailedFuture() {
3558	>	CFException ex = new CFException();
3559	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3560	>	checkCompletedExceptionally(f, ex);
3561	>	}
3562	>
3563	>	/**
3564	>	* failedFuture(null) throws NPE
3565	>	*/
3566	>	public void testFailedFuture_null() {
3567	>	try {
3568	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3569	>	shouldThrow();
3570	>	} catch (NullPointerException success) {}
3571	>	}
3572	>
3573	>	/**
3574	>	* copy returns a CompletableFuture that is completed normally,
3575	>	* with the same value, when source is.
3576	>	*/
3577	>	public void testCopy_normalCompletion() {
3578	>	for (boolean createIncomplete : new boolean[] { true, false })
3579	>	for (Integer v1 : new Integer[] { 1, null })
3580	>	{
3581	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3582	>	if (!createIncomplete) assertTrue(f.complete(v1));
3583	>	CompletableFuture<Integer> g = f.copy();
3584	>	if (createIncomplete) {
3585	>	checkIncomplete(f);
3586	>	checkIncomplete(g);
3587	>	assertTrue(f.complete(v1));
3588	>	}
3589	>	checkCompletedNormally(f, v1);
3590	>	checkCompletedNormally(g, v1);
3591	>	}}
3592	>
3593	>	/**
3594	>	* copy returns a CompletableFuture that is completed exceptionally
3595	>	* when source is.
3596	>	*/
3597	>	public void testCopy_exceptionalCompletion() {
3598	>	for (boolean createIncomplete : new boolean[] { true, false })
3599	>	{
3600	>	CFException ex = new CFException();
3601	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3602	>	if (!createIncomplete) f.completeExceptionally(ex);
3603	>	CompletableFuture<Integer> g = f.copy();
3604	>	if (createIncomplete) {
3605	>	checkIncomplete(f);
3606	>	checkIncomplete(g);
3607	>	f.completeExceptionally(ex);
3608	>	}
3609	>	checkCompletedExceptionally(f, ex);
3610	>	checkCompletedWithWrappedException(g, ex);
3611	>	}}
3612	>
3613	>	/**
3614	>	* Completion of a copy does not complete its source.
3615	>	*/
3616	>	public void testCopy_oneWayPropagation() {
3617	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3618	>	assertTrue(f.copy().complete(1));
3619	>	assertTrue(f.copy().complete(null));
3620	>	assertTrue(f.copy().cancel(true));
3621	>	assertTrue(f.copy().cancel(false));
3622	>	assertTrue(f.copy().completeExceptionally(new CFException()));
3623	>	checkIncomplete(f);
3624	>	}
3625	>
3626	>	/**
3627	>	* minimalCompletionStage returns a CompletableFuture that is
3628	>	* completed normally, with the same value, when source is.
3629	>	*/
3630	>	public void testMinimalCompletionStage() {
3631	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3632	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3633	>	AtomicInteger x = new AtomicInteger(0);
3634	>	AtomicReference<Throwable> r = new AtomicReference<>();
3635	>	checkIncomplete(f);
3636	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3637	>	f.complete(1);
3638	>	checkCompletedNormally(f, 1);
3639	>	assertEquals(x.get(), 1);
3640	>	assertNull(r.get());
3641	>	}
3642	>
3643	>	/**
3644	>	* minimalCompletionStage returns a CompletableFuture that is
3645	>	* completed exceptionally when source is.
3646	>	*/
3647	>	public void testMinimalCompletionStage2() {
3648	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3649	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3650	>	AtomicInteger x = new AtomicInteger(0);
3651	>	AtomicReference<Throwable> r = new AtomicReference<>();
3652	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3653	>	checkIncomplete(f);
3654	>	CFException ex = new CFException();
3655	>	f.completeExceptionally(ex);
3656	>	checkCompletedExceptionally(f, ex);
3657	>	assertEquals(x.get(), 0);
3658	>	assertEquals(r.get().getCause(), ex);
3659	>	}
3660	>
3661	>	/**
3662	>	* failedStage returns a CompletionStage completed
3663	>	* exceptionally with the given Exception
3664	>	*/
3665	>	public void testFailedStage() {
3666	>	CFException ex = new CFException();
3667	>	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3668	>	AtomicInteger x = new AtomicInteger(0);
3669	>	AtomicReference<Throwable> r = new AtomicReference<>();
3670	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3671	>	assertEquals(x.get(), 0);
3672	>	assertEquals(r.get(), ex);
3673	>	}
3674	>
3675	>	/**
3676	>	* completeAsync completes with value of given supplier
3677	>	*/
3678	>	public void testCompleteAsync() {
3679	>	for (Integer v1 : new Integer[] { 1, null })
3680	>	{
3681	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3682	>	f.completeAsync(() -> v1);
3683	>	f.join();
3684	>	checkCompletedNormally(f, v1);
3685	>	}}
3686	>
3687	>	/**
3688	>	* completeAsync completes exceptionally if given supplier throws
3689	>	*/
3690	>	public void testCompleteAsync2() {
3691	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3692	>	CFException ex = new CFException();
3693	>	f.completeAsync(() -> { throw ex; });
3694	>	try {
3695	>	f.join();
3696	>	shouldThrow();
3697	>	} catch (CompletionException success) {}
3698	>	checkCompletedWithWrappedException(f, ex);
3699	>	}
3700	>
3701	>	/**
3702	>	* completeAsync with given executor completes with value of given supplier
3703	>	*/
3704	>	public void testCompleteAsync3() {
3705	>	for (Integer v1 : new Integer[] { 1, null })
3706	>	{
3707	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3708	>	ThreadExecutor executor = new ThreadExecutor();
3709	>	f.completeAsync(() -> v1, executor);
3710	>	assertSame(v1, f.join());
3711	>	checkCompletedNormally(f, v1);
3712	>	assertEquals(1, executor.count.get());
3713	>	}}
3714	>
3715	>	/**
3716	>	* completeAsync with given executor completes exceptionally if
3717	>	* given supplier throws
3718	>	*/
3719	>	public void testCompleteAsync4() {
3720	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3721	>	CFException ex = new CFException();
3722	>	ThreadExecutor executor = new ThreadExecutor();
3723	>	f.completeAsync(() -> { throw ex; }, executor);
3724	>	try {
3725	>	f.join();
3726	>	shouldThrow();
3727	>	} catch (CompletionException success) {}
3728	>	checkCompletedWithWrappedException(f, ex);
3729	>	assertEquals(1, executor.count.get());
3730	>	}
3731	>
3732	>	/**
3733	>	* orTimeout completes with TimeoutException if not complete
3734	>	*/
3735	>	public void testOrTimeout_timesOut() {
3736	>	long timeoutMillis = timeoutMillis();
3737	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3738	>	long startTime = System.nanoTime();
3739	>	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3740	>	checkCompletedWithTimeoutException(f);
3741	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3742	>	}
3743	>
3744	>	/**
3745	>	* orTimeout completes normally if completed before timeout
3746	>	*/
3747	>	public void testOrTimeout_completed() {
3748	>	for (Integer v1 : new Integer[] { 1, null })
3749	>	{
3750	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3751	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3752	>	long startTime = System.nanoTime();
3753	>	f.complete(v1);
3754	>	assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3755	>	assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3756	>	g.complete(v1);
3757	>	checkCompletedNormally(f, v1);
3758	>	checkCompletedNormally(g, v1);
3759	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3760	>	}}
3761	>
3762	>	/**
3763	>	* completeOnTimeout completes with given value if not complete
3764	>	*/
3765	>	public void testCompleteOnTimeout_timesOut() {
3766	>	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3767	>	() -> testCompleteOnTimeout_timesOut(null));
3768	>	}
3769	>
3770	>	/**
3771	>	* completeOnTimeout completes with given value if not complete
3772	>	*/
3773	>	public void testCompleteOnTimeout_timesOut(Integer v) {
3774	>	long timeoutMillis = timeoutMillis();
3775	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3776	>	long startTime = System.nanoTime();
3777	>	assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS));
3778	>	assertSame(v, f.join());
3779	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3780	>	f.complete(99);         // should have no effect
3781	>	checkCompletedNormally(f, v);
3782	>	}
3783	>
3784	>	/**
3785	>	* completeOnTimeout has no effect if completed within timeout
3786	>	*/
3787	>	public void testCompleteOnTimeout_completed() {
3788	>	for (Integer v1 : new Integer[] { 1, null })
3789	>	{
3790	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3791	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3792	>	long startTime = System.nanoTime();
3793	>	f.complete(v1);
3794	>	assertSame(f, f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3795	>	assertSame(g, g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3796	>	g.complete(v1);
3797	>	checkCompletedNormally(f, v1);
3798	>	checkCompletedNormally(g, v1);
3799	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3800	>	}}
3801	>
3802	>	/**
3803	>	* delayedExecutor returns an executor that delays submission
3804	>	*/
3805	>	public void testDelayedExecutor() {
3806	>	testInParallel(() -> testDelayedExecutor(null, null),
3807	>	() -> testDelayedExecutor(null, 1),
3808	>	() -> testDelayedExecutor(new ThreadExecutor(), 1),
3809	>	() -> testDelayedExecutor(new ThreadExecutor(), 1));
3810	>	}
3811	>
3812	>	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
3813	>	long timeoutMillis = timeoutMillis();
3814	>	// Use an "unreasonably long" long timeout to catch lingering threads
3815	>	long longTimeoutMillis = 1000 * 60 * 60 * 24;
3816	>	final Executor delayer, longDelayer;
3817	>	if (executor == null) {
3818	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
3819	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
3820	>	} else {
3821	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
3822	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
3823	>	}
3824	>	long startTime = System.nanoTime();
3825	>	CompletableFuture<Integer> f =
3826	>	CompletableFuture.supplyAsync(() -> v, delayer);
3827	>	CompletableFuture<Integer> g =
3828	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
3829	>
3830	>	assertNull(g.getNow(null));
3831	>
3832	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
3833	>	long millisElapsed = millisElapsedSince(startTime);
3834	>	assertTrue(millisElapsed >= timeoutMillis);
3835	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
3836	>
3837	>	checkCompletedNormally(f, v);
3838	>
3839	>	checkIncomplete(g);
3840	>	assertTrue(g.cancel(true));
3841	>	}
3842	>
3843	>	//--- tests of implementation details; not part of official tck ---
3844	>
3845	>	Object resultOf(CompletableFuture<?> f) {
3846	>	SecurityManager sm = System.getSecurityManager();
3847	>	if (sm != null) {
3848	>	try {
3849	>	System.setSecurityManager(null);
3850	>	} catch (SecurityException giveUp) {
3851	>	return "Reflection not available";
3852	>	}
3853	>	}
3854	>
3855	>	try {
3856	>	java.lang.reflect.Field resultField
3857	>	= CompletableFuture.class.getDeclaredField("result");
3858	>	resultField.setAccessible(true);
3859	>	return resultField.get(f);
3860	>	} catch (Throwable t) {
3861	>	throw new AssertionError(t);
3862	>	} finally {
3863	>	if (sm != null) System.setSecurityManager(sm);
3864	>	}
3865	>	}
3866	>
3867	>	public void testExceptionPropagationReusesResultObject() {
3868	>	if (!testImplementationDetails) return;
3869	>	for (ExecutionMode m : ExecutionMode.values())
3870	>	{
3871	>	final CFException ex = new CFException();
3872	>	final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
3873	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3874	>
3875	>	final Runnable noopRunnable = new Noop(m);
3876	>	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
3877	>	final Function<Integer, Integer> incFunction = new IncFunction(m);
3878	>
3879	>	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
3880	>	= new ArrayList<>();
3881	>
3882	>	funs.add(y -> m.thenRun(y, noopRunnable));
3883	>	funs.add(y -> m.thenAccept(y, noopConsumer));
3884	>	funs.add(y -> m.thenApply(y, incFunction));
3885	>
3886	>	funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable));
3887	>	funs.add(y -> m.acceptEither(y, incomplete, noopConsumer));
3888	>	funs.add(y -> m.applyToEither(y, incomplete, incFunction));
3889	>
3890	>	funs.add(y -> m.runAfterBoth(y, v42, noopRunnable));
3891	>	funs.add(y -> m.runAfterBoth(v42, y, noopRunnable));
3892	>	funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3893	>	funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
3894	>	funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m)));
3895	>	funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m)));
3896	>
3897	>	funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
3898	>
3899	>	funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m)));
3900	>
3901	>	funs.add(y -> CompletableFuture.allOf(y));
3902	>	funs.add(y -> CompletableFuture.allOf(y, v42));
3903	>	funs.add(y -> CompletableFuture.allOf(v42, y));
3904	>	funs.add(y -> CompletableFuture.anyOf(y));
3905	>	funs.add(y -> CompletableFuture.anyOf(y, incomplete));
3906	>	funs.add(y -> CompletableFuture.anyOf(incomplete, y));
3907	>
3908	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3909	>	fun : funs) {
3910	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3911	>	f.completeExceptionally(ex);
3912	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3913	>	checkCompletedWithWrappedException(src, ex);
3914	>	CompletableFuture<?> dep = fun.apply(src);
3915	>	checkCompletedWithWrappedException(dep, ex);
3916	>	assertSame(resultOf(src), resultOf(dep));
3917	>	}
3918	>
3919	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3920	>	fun : funs) {
3921	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3922	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3923	>	CompletableFuture<?> dep = fun.apply(src);
3924	>	f.completeExceptionally(ex);
3925	>	checkCompletedWithWrappedException(src, ex);
3926	>	checkCompletedWithWrappedException(dep, ex);
3927	>	assertSame(resultOf(src), resultOf(dep));
3928	>	}
3929	>
3930	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3931	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3932	>	fun : funs) {
3933	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3934	>	f.cancel(mayInterruptIfRunning);
3935	>	checkCancelled(f);
3936	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3937	>	checkCompletedWithWrappedCancellationException(src);
3938	>	CompletableFuture<?> dep = fun.apply(src);
3939	>	checkCompletedWithWrappedCancellationException(dep);
3940	>	assertSame(resultOf(src), resultOf(dep));
3941	>	}
3942	>
3943	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3944	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3945	>	fun : funs) {
3946	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3947	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3948	>	CompletableFuture<?> dep = fun.apply(src);
3949	>	f.cancel(mayInterruptIfRunning);
3950	>	checkCancelled(f);
3951	>	checkCompletedWithWrappedCancellationException(src);
3952	>	checkCompletedWithWrappedCancellationException(dep);
3953	>	assertSame(resultOf(src), resultOf(dep));
3954	>	}
3955	>	}}
3956	>
3957	>	/**
3958	>	* Minimal completion stages throw UOE for most non-CompletionStage methods
3959	>	*/
3960	>	public void testMinimalCompletionStage_minimality() {
3961	>	if (!testImplementationDetails) return;
3962	>	Function<Method, String> toSignature =
3963	>	method -> method.getName() + Arrays.toString(method.getParameterTypes());
3964	>	Predicate<Method> isNotStatic =
3965	>	method -> (method.getModifiers() & Modifier.STATIC) == 0;
3966	>	List<Method> minimalMethods =
3967	>	Stream.of(Object.class, CompletionStage.class)
3968	>	.flatMap(klazz -> Stream.of(klazz.getMethods()))
3969	>	.filter(isNotStatic)
3970	>	.collect(Collectors.toList());
3971	>	// Methods from CompletableFuture permitted NOT to throw UOE
3972	>	String[] signatureWhitelist = {
3973	>	"newIncompleteFuture[]",
3974	>	"defaultExecutor[]",
3975	>	"minimalCompletionStage[]",
3976	>	"copy[]",
3977	>	};
3978	>	Set<String> permittedMethodSignatures =
3979	>	Stream.concat(minimalMethods.stream().map(toSignature),
3980	>	Stream.of(signatureWhitelist))
3981	>	.collect(Collectors.toSet());
3982	>	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
3983	>	.filter(isNotStatic)
3984	>	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
3985	>	.collect(Collectors.toList());
3986	>
3987	>	List<CompletionStage<Integer>> stages = new ArrayList<>();
3988	>	CompletionStage<Integer> min =
3989	>	new CompletableFuture<Integer>().minimalCompletionStage();
3990	>	stages.add(min);
3991	>	stages.add(min.thenApply(x -> x));
3992	>	stages.add(CompletableFuture.completedStage(1));
3993	>	stages.add(CompletableFuture.failedStage(new CFException()));
3994	>
3995	>	List<Method> bugs = new ArrayList<>();
3996	>	for (Method method : allMethods) {
3997	>	Class<?>[] parameterTypes = method.getParameterTypes();
3998	>	Object[] args = new Object[parameterTypes.length];
3999	>	// Manufacture boxed primitives for primitive params
4000	>	for (int i = 0; i < args.length; i++) {
4001	>	Class<?> type = parameterTypes[i];
4002	>	if (parameterTypes[i] == boolean.class)
4003	>	args[i] = false;
4004	>	else if (parameterTypes[i] == int.class)
4005	>	args[i] = 0;
4006	>	else if (parameterTypes[i] == long.class)
4007	>	args[i] = 0L;
4008	>	}
4009	>	for (CompletionStage<Integer> stage : stages) {
4010	>	try {
4011	>	method.invoke(stage, args);
4012	>	bugs.add(method);
4013	>	}
4014	>	catch (java.lang.reflect.InvocationTargetException expected) {
4015	>	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4016	>	bugs.add(method);
4017	>	// expected.getCause().printStackTrace();
4018	>	}
4019	>	}
4020	>	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4021	>	}
4022	>	}
4023	>	if (!bugs.isEmpty())
4024	>	throw new Error("Methods did not throw UOE: " + bugs);
4025	>	}
4026	>
4027	>	/**
4028	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4029	>	* is completed normally, with the same value, when source is.
4030	>	*/
4031	>	public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() {
4032	>	for (boolean createIncomplete : new boolean[] { true, false })
4033	>	for (Integer v1 : new Integer[] { 1, null })
4034	>	{
4035	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4036	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4037	>	if (!createIncomplete) assertTrue(f.complete(v1));
4038	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4039	>	if (createIncomplete) {
4040	>	checkIncomplete(f);
4041	>	checkIncomplete(g);
4042	>	assertTrue(f.complete(v1));
4043	>	}
4044	>	checkCompletedNormally(f, v1);
4045	>	checkCompletedNormally(g, v1);
4046	>	}}
4047	>
4048	>	/**
4049	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4050	>	* is completed exceptionally when source is.
4051	>	*/
4052	>	public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() {
4053	>	for (boolean createIncomplete : new boolean[] { true, false })
4054	>	{
4055	>	CFException ex = new CFException();
4056	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4057	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4058	>	if (!createIncomplete) f.completeExceptionally(ex);
4059	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4060	>	if (createIncomplete) {
4061	>	checkIncomplete(f);
4062	>	checkIncomplete(g);
4063	>	f.completeExceptionally(ex);
4064	>	}
4065	>	checkCompletedExceptionally(f, ex);
4066	>	checkCompletedWithWrappedException(g, ex);
4067	>	}}
4068	>
4069	>	/**
4070	>	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4071	>	*/
4072	>	public void testMinimalCompletionStage_toCompletableFuture_mutable() {
4073	>	for (Integer v1 : new Integer[] { 1, null })
4074	>	{
4075	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4076	>	CompletionStage minimal = f.minimalCompletionStage();
4077	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4078	>	assertTrue(g.complete(v1));
4079	>	checkCompletedNormally(g, v1);
4080	>	checkIncomplete(f);
4081	>	checkIncomplete(minimal.toCompletableFuture());
4082	>	}}
4083	>
4084	>	/**
4085	>	* minimalStage.toCompletableFuture().join() awaits completion
4086	>	*/
4087	>	public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception {
4088	>	for (boolean createIncomplete : new boolean[] { true, false })
4089	>	for (Integer v1 : new Integer[] { 1, null })
4090	>	{
4091	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4092	>	if (!createIncomplete) assertTrue(f.complete(v1));
4093	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4094	>	if (createIncomplete) assertTrue(f.complete(v1));
4095	>	assertEquals(v1, minimal.toCompletableFuture().join());
4096	>	assertEquals(v1, minimal.toCompletableFuture().get());
4097	>	checkCompletedNormally(minimal.toCompletableFuture(), v1);
4098	>	}}
4099	>
4100	>	/**
4101	>	* Completion of a toCompletableFuture copy of a minimal stage
4102	>	* does not complete its source.
4103	>	*/
4104	>	public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() {
4105	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4106	>	CompletionStage<Integer> g = f.minimalCompletionStage();
4107	>	assertTrue(g.toCompletableFuture().complete(1));
4108	>	assertTrue(g.toCompletableFuture().complete(null));
4109	>	assertTrue(g.toCompletableFuture().cancel(true));
4110	>	assertTrue(g.toCompletableFuture().cancel(false));
4111	>	assertTrue(g.toCompletableFuture().completeExceptionally(new CFException()));
4112	>	checkIncomplete(g.toCompletableFuture());
4113	>	f.complete(1);
4114	>	checkCompletedNormally(g.toCompletableFuture(), 1);
4115	>	}
4116	>
4117	>	/** Demo utility method for external reliable toCompletableFuture */
4118	>	static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) {
4119	>	CompletableFuture<T> f = new CompletableFuture<>();
4120	>	stage.handle((T t, Throwable ex) -> {
4121	>	if (ex != null) f.completeExceptionally(ex);
4122	>	else f.complete(t);
4123	>	return null;
4124	>	});
4125	>	return f;
4126	>	}
4127	>
4128	>	/** Demo utility method to join a CompletionStage */
4129	>	static <T> T join(CompletionStage<T> stage) {
4130	>	return toCompletableFuture(stage).join();
4131	>	}
4132	>
4133	>	/**
4134	>	* Joining a minimal stage "by hand" works
4135	>	*/
4136	>	public void testMinimalCompletionStage_join_by_hand() {
4137	>	for (boolean createIncomplete : new boolean[] { true, false })
4138	>	for (Integer v1 : new Integer[] { 1, null })
4139	>	{
4140	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4141	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4142	>	CompletableFuture<Integer> g = new CompletableFuture<>();
4143	>	if (!createIncomplete) assertTrue(f.complete(v1));
4144	>	minimal.thenAccept(x -> g.complete(x));
4145	>	if (createIncomplete) assertTrue(f.complete(v1));
4146	>	g.join();
4147	>	checkCompletedNormally(g, v1);
4148	>	checkCompletedNormally(f, v1);
4149	>	assertEquals(v1, join(minimal));
4150	>	}}
4151	>
4152	>	static class Monad {
4153	>	static class ZeroException extends RuntimeException {
4154	>	public ZeroException() { super("monadic zero"); }
4155	>	}
4156	>	// "return", "unit"
4157	>	static <T> CompletableFuture<T> unit(T value) {
4158	>	return completedFuture(value);
4159	>	}
4160	>	// monadic zero ?
4161	>	static <T> CompletableFuture<T> zero() {
4162	>	return failedFuture(new ZeroException());
4163	>	}
4164	>	// >=>
4165	>	static <T,U,V> Function<T, CompletableFuture<V>> compose
4166	>	(Function<T, CompletableFuture<U>> f,
4167	>	Function<U, CompletableFuture<V>> g) {
4168	>	return x -> f.apply(x).thenCompose(g);
4169	>	}
4170	>
4171	>	static void assertZero(CompletableFuture<?> f) {
4172	>	try {
4173	>	f.getNow(null);
4174	>	throw new AssertionFailedError("should throw");
4175	>	} catch (CompletionException success) {
4176	>	assertTrue(success.getCause() instanceof ZeroException);
4177	>	}
4178	>	}
4179	>
4180	>	static <T> void assertFutureEquals(CompletableFuture<T> f,
4181	>	CompletableFuture<T> g) {
4182	>	T fval = null, gval = null;
4183	>	Throwable fex = null, gex = null;
4184	>
4185	>	try { fval = f.get(); }
4186	>	catch (ExecutionException ex) { fex = ex.getCause(); }
4187	>	catch (Throwable ex) { fex = ex; }
4188	>
4189	>	try { gval = g.get(); }
4190	>	catch (ExecutionException ex) { gex = ex.getCause(); }
4191	>	catch (Throwable ex) { gex = ex; }
4192	>
4193	>	if (fex != null || gex != null)
4194	>	assertSame(fex.getClass(), gex.getClass());
4195	>	else
4196	>	assertEquals(fval, gval);
4197	>	}
4198	>
4199	>	static class PlusFuture<T> extends CompletableFuture<T> {
4200	>	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4201	>	}
4202	>
4203	>	/** Implements "monadic plus". */
4204	>	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
4205	>	CompletableFuture<? extends T> g) {
4206	>	PlusFuture<T> plus = new PlusFuture<T>();
4207	>	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
4208	>	try {
4209	>	if (ex == null) {
4210	>	if (plus.complete(result))
4211	>	if (plus.firstFailure.get() != null)
4212	>	plus.firstFailure.set(null);
4213	>	}
4214	>	else if (plus.firstFailure.compareAndSet(null, ex)) {
4215	>	if (plus.isDone())
4216	>	plus.firstFailure.set(null);
4217	>	}
4218	>	else {
4219	>	// first failure has precedence
4220	>	Throwable first = plus.firstFailure.getAndSet(null);
4221	>
4222	>	// may fail with "Self-suppression not permitted"
4223	>	try { first.addSuppressed(ex); }
4224	>	catch (Exception ignored) {}
4225	>
4226	>	plus.completeExceptionally(first);
4227	>	}
4228	>	} catch (Throwable unexpected) {
4229	>	plus.completeExceptionally(unexpected);
4230	>	}
4231	>	};
4232	>	f.whenComplete(action);
4233	>	g.whenComplete(action);
4234	>	return plus;
4235	>	}
4236	>	}
4237	>
4238	>	/**
4239	>	* CompletableFuture is an additive monad - sort of.
4240	>	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
4241	>	*/
4242	>	public void testAdditiveMonad() throws Throwable {
4243	>	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
4244	>	CompletableFuture<Long> zero = Monad.zero();
4245	>
4246	>	// Some mutually non-commutative functions
4247	>	Function<Long, CompletableFuture<Long>> triple
4248	>	= x -> Monad.unit(3 * x);
4249	>	Function<Long, CompletableFuture<Long>> inc
4250	>	= x -> Monad.unit(x + 1);
4251	>
4252	>	// unit is a right identity: m >>= unit === m
4253	>	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
4254	>	inc.apply(5L));
4255	>	// unit is a left identity: (unit x) >>= f === f x
4256	>	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
4257	>	inc.apply(5L));
4258	>
4259	>	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4260	>	Monad.assertFutureEquals(
4261	>	unit.apply(5L).thenCompose(inc).thenCompose(triple),
4262	>	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4263	>
4264	>	// The case for CompletableFuture as an additive monad is weaker...
4265	>
4266	>	// zero is a monadic zero
4267	>	Monad.assertZero(zero);
4268	>
4269	>	// left zero: zero >>= f === zero
4270	>	Monad.assertZero(zero.thenCompose(inc));
4271	>	// right zero: f >>= (\x -> zero) === zero
4272	>	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4273	>
4274	>	// f plus zero === f
4275	>	Monad.assertFutureEquals(Monad.unit(5L),
4276	>	Monad.plus(Monad.unit(5L), zero));
4277	>	// zero plus f === f
4278	>	Monad.assertFutureEquals(Monad.unit(5L),
4279	>	Monad.plus(zero, Monad.unit(5L)));
4280	>	// zero plus zero === zero
4281	>	Monad.assertZero(Monad.plus(zero, zero));
4282	>	{
4283	>	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
4284	>	Monad.unit(8L));
4285	>	// non-determinism
4286	>	assertTrue(f.get() == 5L || f.get() == 8L);
4287	>	}
4288	>
4289	>	CompletableFuture<Long> godot = new CompletableFuture<>();
4290	>	// f plus godot === f (doesn't wait for godot)
4291	>	Monad.assertFutureEquals(Monad.unit(5L),
4292	>	Monad.plus(Monad.unit(5L), godot));
4293	>	// godot plus f === f (doesn't wait for godot)
4294	>	Monad.assertFutureEquals(Monad.unit(5L),
4295	>	Monad.plus(godot, Monad.unit(5L)));
4296	>	}
4297	>
4298	>	/** Test long recursive chains of CompletableFutures with cascading completions */
4299	>	public void testRecursiveChains() throws Throwable {
4300	>	for (ExecutionMode m : ExecutionMode.values())
4301	>	for (boolean addDeadEnds : new boolean[] { true, false })
4302	>	{
4303	>	final int val = 42;
4304	>	final int n = expensiveTests ? 1_000 : 2;
4305	>	CompletableFuture<Integer> head = new CompletableFuture<>();
4306	>	CompletableFuture<Integer> tail = head;
4307	>	for (int i = 0; i < n; i++) {
4308	>	if (addDeadEnds) m.thenApply(tail, v -> v + 1);
4309	>	tail = m.thenApply(tail, v -> v + 1);
4310	>	if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1);
4311	>	tail = m.applyToEither(tail, tail, v -> v + 1);
4312	>	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1);
4313	>	tail = m.thenCombine(tail, tail, (v, w) -> v + 1);
4314	>	}
4315	>	head.complete(val);
4316	>	assertEquals(val + 3 * n, (int) tail.join());
4317	>	}}
4318	>
4319	>	/**
4320	>	* A single CompletableFuture with many dependents.
4321	>	* A demo of scalability - runtime is O(n).
4322	>	*/
4323	>	public void testManyDependents() throws Throwable {
4324	>	final int n = expensiveTests ? 1_000_000 : 10;
4325	>	final CompletableFuture<Void> head = new CompletableFuture<>();
4326	>	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4327	>	final AtomicInteger count = new AtomicInteger(0);
4328	>	for (int i = 0; i < n; i++) {
4329	>	head.thenRun(() -> count.getAndIncrement());
4330	>	head.thenAccept(x -> count.getAndIncrement());
4331	>	head.thenApply(x -> count.getAndIncrement());
4332	>
4333	>	head.runAfterBoth(complete, () -> count.getAndIncrement());
4334	>	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
4335	>	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
4336	>	complete.runAfterBoth(head, () -> count.getAndIncrement());
4337	>	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
4338	>	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4339	>
4340	>	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4341	>	head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4342	>	head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4343	>	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4344	>	new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement());
4345	>	new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement());
4346	>	}
4347	>	head.complete(null);
4348	>	assertEquals(5 * 3 * n, count.get());
4349	>	}
4350	>
4351	>	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4352	>	public void testCoCompletionGarbageRetention() throws Throwable {
4353	>	final int n = expensiveTests ? 1_000_000 : 10;
4354	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4355	>	CompletableFuture<Integer> f;
4356	>	for (int i = 0; i < n; i++) {
4357	>	f = new CompletableFuture<>();
4358	>	f.runAfterEither(incomplete, () -> {});
4359	>	f.complete(null);
4360	>
4361	>	f = new CompletableFuture<>();
4362	>	f.acceptEither(incomplete, x -> {});
4363	>	f.complete(null);
4364	>
4365	>	f = new CompletableFuture<>();
4366	>	f.applyToEither(incomplete, x -> x);
4367	>	f.complete(null);
4368	>
4369	>	f = new CompletableFuture<>();
4370	>	CompletableFuture.anyOf(new CompletableFuture<?>[] { f, incomplete });
4371	>	f.complete(null);
4372	>	}
4373	>
4374	>	for (int i = 0; i < n; i++) {
4375	>	f = new CompletableFuture<>();
4376	>	incomplete.runAfterEither(f, () -> {});
4377	>	f.complete(null);
4378	>
4379	>	f = new CompletableFuture<>();
4380	>	incomplete.acceptEither(f, x -> {});
4381	>	f.complete(null);
4382	>
4383	>	f = new CompletableFuture<>();
4384	>	incomplete.applyToEither(f, x -> x);
4385	>	f.complete(null);
4386	>
4387	>	f = new CompletableFuture<>();
4388	>	CompletableFuture.anyOf(new CompletableFuture<?>[] { incomplete, f });
4389	>	f.complete(null);
4390	>	}
4391	>	}
4392	>
4393	>	/**
4394	>	* Reproduction recipe for:
4395	>	* 8160402: Garbage retention with CompletableFuture.anyOf
4396	>	* 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
4397	>	*/
4398	>	public void testAnyOfGarbageRetention() throws Throwable {
4399	>	for (Integer v : new Integer[] { 1, null })
4400	>	{
4401	>	final int n = expensiveTests ? 100_000 : 10;
4402	>	CompletableFuture<Integer>[] fs
4403	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4404	>	for (int i = 0; i < fs.length; i++)
4405	>	fs[i] = new CompletableFuture<>();
4406	>	fs[fs.length - 1].complete(v);
4407	>	for (int i = 0; i < n; i++)
4408	>	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4409	>	}}
4410	>
4411	>	/**
4412	>	* Checks for garbage retention with allOf.
4413	>	*
4414	>	* As of 2016-07, fails with OOME:
4415	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4416	>	*/
4417	>	public void testCancelledAllOfGarbageRetention() throws Throwable {
4418	>	final int n = expensiveTests ? 100_000 : 10;
4419	>	CompletableFuture<Integer>[] fs
4420	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4421	>	for (int i = 0; i < fs.length; i++)
4422	>	fs[i] = new CompletableFuture<>();
4423	>	for (int i = 0; i < n; i++)
4424	>	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4425	>	}
4426	>
4427	>	/**
4428	>	* Checks for garbage retention when a dependent future is
4429	>	* cancelled and garbage-collected.
4430	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4431	>	*
4432	>	* As of 2016-07, fails with OOME:
4433	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4434	>	*/
4435	>	public void testCancelledGarbageRetention() throws Throwable {
4436	>	final int n = expensiveTests ? 100_000 : 10;
4437	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4438	>	for (int i = 0; i < n; i++)
4439	>	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4440	>	}
4441	>
4442	>	/**
4443	>	* Checks for garbage retention when MinimalStage.toCompletableFuture()
4444	>	* is invoked many times.
4445	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4446	>	*
4447	>	* As of 2016-07, fails with OOME:
4448	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck
4449	>	*/
4450	>	public void testToCompletableFutureGarbageRetention() throws Throwable {
4451	>	final int n = expensiveTests ? 900_000 : 10;
4452	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4453	>	CompletionStage minimal = neverCompleted.minimalCompletionStage();
4454	>	for (int i = 0; i < n; i++)
4455	>	assertTrue(minimal.toCompletableFuture().cancel(true));
4456	>	}
4457	>
4458	>	//     static <U> U join(CompletionStage<U> stage) {
4459	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4460	>	//         stage.whenComplete((v, ex) -> {
4461	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4462	>	//         });
4463	>	//         return f.join();
4464	>	//     }
4465	>
4466	>	//     static <U> boolean isDone(CompletionStage<U> stage) {
4467	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4468	>	//         stage.whenComplete((v, ex) -> {
4469	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4470	>	//         });
4471	>	//         return f.isDone();
4472	>	//     }
4473	>
4474	>	//     static <U> U join2(CompletionStage<U> stage) {
4475	>	//         return stage.toCompletableFuture().copy().join();
4476	>	//     }
4477	>
4478	>	//     static <U> boolean isDone2(CompletionStage<U> stage) {
4479	>	//         return stage.toCompletableFuture().copy().isDone();
4480	>	//     }
4481
4482		}

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