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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.118 by jsr166, Sun Sep 6 05:33:14 2015 UTC vs.
Revision 1.173 by jsr166, Wed Sep 21 06:03:17 2016 UTC

#	Line 7 | Line 7
7
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;
25		import java.util.concurrent.CancellationException;
26		import java.util.concurrent.CompletableFuture;
#	Line 20 | Line 30 | import java.util.concurrent.ExecutionExc
30		import java.util.concurrent.Executor;
31		import java.util.concurrent.ForkJoinPool;
32		import java.util.concurrent.ForkJoinTask;
33	+	import java.util.concurrent.RejectedExecutionException;
34		import java.util.concurrent.TimeoutException;
24	–	import java.util.concurrent.TimeUnit;
35		import java.util.concurrent.atomic.AtomicInteger;
36		import java.util.concurrent.atomic.AtomicReference;
37		import java.util.function.BiConsumer;
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
#	Line 77 | Line 89 | public class CompletableFutureTest exten
89		assertTrue(f.toString().contains("[Completed normally]"));
90		}
91
92	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
93	<	long startTime = System.nanoTime();
94	<	long timeoutMillis = LONG_DELAY_MS;
95	<	try {
96	<	f.get(timeoutMillis, MILLISECONDS);
97	<	shouldThrow();
98	<	} catch (ExecutionException success) {
99	<	assertTrue(success.getCause() instanceof CFException);
100	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
101	<	assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
102	<
103	<	try {
104	<	f.join();
105	<	shouldThrow();
106	<	} catch (CompletionException success) {
107	<	assertTrue(success.getCause() instanceof CFException);
108	<	}
97	<	try {
98	<	f.getNow(null);
99	<	shouldThrow();
100	<	} catch (CompletionException success) {
101	<	assertTrue(success.getCause() instanceof CFException);
92	>	/**
93	>	* Returns the "raw" internal exceptional completion of f,
94	>	* without any additional wrapping with CompletionException.
95	>	*/
96	>	<U> Throwable exceptionalCompletion(CompletableFuture<U> f) {
97	>	// handle (and whenComplete) can distinguish between "direct"
98	>	// and "wrapped" exceptional completion
99	>	return f.handle((U u, Throwable t) -> t).join();
100	>	}
101	>
102	>	void checkCompletedExceptionally(CompletableFuture<?> f,
103	>	boolean wrapped,
104	>	Consumer<Throwable> checker) {
105	>	Throwable cause = exceptionalCompletion(f);
106	>	if (wrapped) {
107	>	assertTrue(cause instanceof CompletionException);
108	>	cause = cause.getCause();
109		}
110	<	try {
104	<	f.get();
105	<	shouldThrow();
106	<	} catch (ExecutionException success) {
107	<	assertTrue(success.getCause() instanceof CFException);
108	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
109	<	assertTrue(f.isDone());
110	<	assertFalse(f.isCancelled());
111	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
112	<	}
110	>	checker.accept(cause);
111
114	–	<U> void checkCompletedExceptionallyWithRootCause(CompletableFuture<U> f,
115	–	Throwable ex) {
112		long startTime = System.nanoTime();
117	–	long timeoutMillis = LONG_DELAY_MS;
113		try {
114	<	f.get(timeoutMillis, MILLISECONDS);
114	>	f.get(LONG_DELAY_MS, MILLISECONDS);
115		shouldThrow();
116		} catch (ExecutionException success) {
117	<	assertSame(ex, success.getCause());
117	>	assertSame(cause, success.getCause());
118		} catch (Throwable fail) { threadUnexpectedException(fail); }
119	<	assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
119	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
120
121		try {
122		f.join();
123		shouldThrow();
124		} catch (CompletionException success) {
125	<	assertSame(ex, success.getCause());
126	<	}
125	>	assertSame(cause, success.getCause());
126	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
127	>
128		try {
129		f.getNow(null);
130		shouldThrow();
131		} catch (CompletionException success) {
132	<	assertSame(ex, success.getCause());
133	<	}
132	>	assertSame(cause, success.getCause());
133	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
134	>
135		try {
136		f.get();
137		shouldThrow();
138		} catch (ExecutionException success) {
139	<	assertSame(ex, success.getCause());
139	>	assertSame(cause, success.getCause());
140		} catch (Throwable fail) { threadUnexpectedException(fail); }
141
145	–	assertTrue(f.isDone());
142		assertFalse(f.isCancelled());
143	+	assertTrue(f.isDone());
144	+	assertTrue(f.isCompletedExceptionally());
145		assertTrue(f.toString().contains("[Completed exceptionally]"));
146		}
147
148	<	<U> void checkCompletedExceptionallyWithTimeout(CompletableFuture<U> f) {
149	<	long startTime = System.nanoTime();
150	<	long timeoutMillis = LONG_DELAY_MS;
151	<	try {
154	<	f.get(timeoutMillis, MILLISECONDS);
155	<	shouldThrow();
156	<	} catch (ExecutionException ex) {
157	<	assertTrue(ex.getCause() instanceof TimeoutException);
158	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
159	<	assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
160	<
161	<	try {
162	<	f.join();
163	<	shouldThrow();
164	<	} catch (Throwable ex) {
165	<	assertTrue(ex.getCause() instanceof TimeoutException);
166	<	}
167	<
168	<	try {
169	<	f.getNow(null);
170	<	shouldThrow();
171	<	} catch (Throwable ex) {
172	<	assertTrue(ex.getCause() instanceof TimeoutException);
173	<	}
148	>	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
149	>	checkCompletedExceptionally(f, true,
150	>	(t) -> assertTrue(t instanceof CFException));
151	>	}
152
153	<	try {
154	<	f.get();
155	<	shouldThrow();
156	<	} catch (ExecutionException ex) {
179	<	assertTrue(ex.getCause() instanceof TimeoutException);
180	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
153	>	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
154	>	checkCompletedExceptionally(f, true,
155	>	(t) -> assertTrue(t instanceof CancellationException));
156	>	}
157
158	<	assertTrue(f.isDone());
159	<	assertFalse(f.isCancelled());
160	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
158	>	void checkCompletedWithTimeoutException(CompletableFuture<?> f) {
159	>	checkCompletedExceptionally(f, false,
160	>	(t) -> assertTrue(t instanceof TimeoutException));
161		}
162
163	<	<U> void checkCompletedWithWrappedException(CompletableFuture<U> f,
164	<	Throwable ex) {
165	<	checkCompletedExceptionallyWithRootCause(f, ex);
190	<	try {
191	<	CompletableFuture<Throwable> spy = f.handle
192	<	((U u, Throwable t) -> t);
193	<	assertTrue(spy.join() instanceof CompletionException);
194	<	assertSame(ex, spy.join().getCause());
195	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
163	>	void checkCompletedWithWrappedException(CompletableFuture<?> f,
164	>	Throwable ex) {
165	>	checkCompletedExceptionally(f, true, (t) -> assertSame(t, ex));
166		}
167
168	<	<U> void checkCompletedExceptionally(CompletableFuture<U> f, Throwable ex) {
169	<	checkCompletedExceptionallyWithRootCause(f, ex);
200	<	try {
201	<	CompletableFuture<Throwable> spy = f.handle
202	<	((U u, Throwable t) -> t);
203	<	assertSame(ex, spy.join());
204	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
168	>	void checkCompletedExceptionally(CompletableFuture<?> f, Throwable ex) {
169	>	checkCompletedExceptionally(f, false, (t) -> assertSame(t, ex));
170		}
171
172		void checkCancelled(CompletableFuture<?> f) {
173		long startTime = System.nanoTime();
209	–	long timeoutMillis = LONG_DELAY_MS;
174		try {
175	<	f.get(timeoutMillis, MILLISECONDS);
175	>	f.get(LONG_DELAY_MS, MILLISECONDS);
176		shouldThrow();
177		} catch (CancellationException success) {
178		} catch (Throwable fail) { threadUnexpectedException(fail); }
179	<	assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
179	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
180
181		try {
182		f.join();
#	Line 227 | Line 191 | public class CompletableFutureTest exten
191		shouldThrow();
192		} catch (CancellationException success) {
193		} catch (Throwable fail) { threadUnexpectedException(fail); }
230	–	assertTrue(f.isDone());
231	–	assertTrue(f.isCompletedExceptionally());
232	–	assertTrue(f.isCancelled());
233	–	assertTrue(f.toString().contains("[Completed exceptionally]"));
234	–	}
194
195	<	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
237	<	long startTime = System.nanoTime();
238	<	long timeoutMillis = LONG_DELAY_MS;
239	<	try {
240	<	f.get(timeoutMillis, MILLISECONDS);
241	<	shouldThrow();
242	<	} catch (ExecutionException success) {
243	<	assertTrue(success.getCause() instanceof CancellationException);
244	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
245	<	assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
195	>	assertTrue(exceptionalCompletion(f) instanceof CancellationException);
196
247	–	try {
248	–	f.join();
249	–	shouldThrow();
250	–	} catch (CompletionException success) {
251	–	assertTrue(success.getCause() instanceof CancellationException);
252	–	}
253	–	try {
254	–	f.getNow(null);
255	–	shouldThrow();
256	–	} catch (CompletionException success) {
257	–	assertTrue(success.getCause() instanceof CancellationException);
258	–	}
259	–	try {
260	–	f.get();
261	–	shouldThrow();
262	–	} catch (ExecutionException success) {
263	–	assertTrue(success.getCause() instanceof CancellationException);
264	–	} catch (Throwable fail) { threadUnexpectedException(fail); }
197		assertTrue(f.isDone());
266	–	assertFalse(f.isCancelled());
198		assertTrue(f.isCompletedExceptionally());
199	+	assertTrue(f.isCancelled());
200		assertTrue(f.toString().contains("[Completed exceptionally]"));
201		}
202
#	Line 429 | Line 361 | public class CompletableFutureTest exten
361		checkCompletedNormally(f, "test");
362		}
363
364	<	abstract class CheckedAction {
364	>	abstract static class CheckedAction {
365		int invocationCount = 0;
366		final ExecutionMode m;
367		CheckedAction(ExecutionMode m) { this.m = m; }
#	Line 441 | Line 373 | public class CompletableFutureTest exten
373		void assertInvoked() { assertEquals(1, invocationCount); }
374		}
375
376	<	abstract class CheckedIntegerAction extends CheckedAction {
376	>	abstract static class CheckedIntegerAction extends CheckedAction {
377		Integer value;
378		CheckedIntegerAction(ExecutionMode m) { super(m); }
379		void assertValue(Integer expected) {
#	Line 450 | Line 382 | public class CompletableFutureTest exten
382		}
383		}
384
385	<	class IntegerSupplier extends CheckedAction
385	>	static class IntegerSupplier extends CheckedAction
386		implements Supplier<Integer>
387		{
388		final Integer value;
#	Line 469 | Line 401 | public class CompletableFutureTest exten
401		return (x == null) ? null : x + 1;
402		}
403
404	<	class NoopConsumer extends CheckedIntegerAction
404	>	static class NoopConsumer extends CheckedIntegerAction
405		implements Consumer<Integer>
406		{
407		NoopConsumer(ExecutionMode m) { super(m); }
#	Line 479 | Line 411 | public class CompletableFutureTest exten
411		}
412		}
413
414	<	class IncFunction extends CheckedIntegerAction
414	>	static class IncFunction extends CheckedIntegerAction
415		implements Function<Integer,Integer>
416		{
417		IncFunction(ExecutionMode m) { super(m); }
#	Line 497 | Line 429 | public class CompletableFutureTest exten
429		- ((y == null) ? 99 : y.intValue());
430		}
431
432	<	class SubtractAction extends CheckedIntegerAction
432	>	static class SubtractAction extends CheckedIntegerAction
433		implements BiConsumer<Integer, Integer>
434		{
435		SubtractAction(ExecutionMode m) { super(m); }
#	Line 507 | Line 439 | public class CompletableFutureTest exten
439		}
440		}
441
442	<	class SubtractFunction extends CheckedIntegerAction
442	>	static class SubtractFunction extends CheckedIntegerAction
443		implements BiFunction<Integer, Integer, Integer>
444		{
445		SubtractFunction(ExecutionMode m) { super(m); }
#	Line 517 | Line 449 | public class CompletableFutureTest exten
449		}
450		}
451
452	<	class Noop extends CheckedAction implements Runnable {
452	>	static class Noop extends CheckedAction implements Runnable {
453		Noop(ExecutionMode m) { super(m); }
454		public void run() {
455		invoked();
456		}
457		}
458
459	<	class FailingSupplier extends CheckedAction
459	>	static class FailingSupplier extends CheckedAction
460		implements Supplier<Integer>
461		{
462	<	FailingSupplier(ExecutionMode m) { super(m); }
462	>	final CFException ex;
463	>	FailingSupplier(ExecutionMode m) { super(m); ex = new CFException(); }
464		public Integer get() {
465		invoked();
466	<	throw new CFException();
466	>	throw ex;
467		}
468		}
469
470	<	class FailingConsumer extends CheckedIntegerAction
470	>	static class FailingConsumer extends CheckedIntegerAction
471		implements Consumer<Integer>
472		{
473	<	FailingConsumer(ExecutionMode m) { super(m); }
473	>	final CFException ex;
474	>	FailingConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
475		public void accept(Integer x) {
476		invoked();
477		value = x;
478	<	throw new CFException();
478	>	throw ex;
479		}
480		}
481
482	<	class FailingBiConsumer extends CheckedIntegerAction
482	>	static class FailingBiConsumer extends CheckedIntegerAction
483		implements BiConsumer<Integer, Integer>
484		{
485	<	FailingBiConsumer(ExecutionMode m) { super(m); }
485	>	final CFException ex;
486	>	FailingBiConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
487		public void accept(Integer x, Integer y) {
488		invoked();
489		value = subtract(x, y);
490	<	throw new CFException();
490	>	throw ex;
491		}
492		}
493
494	<	class FailingFunction extends CheckedIntegerAction
494	>	static class FailingFunction extends CheckedIntegerAction
495		implements Function<Integer, Integer>
496		{
497	<	FailingFunction(ExecutionMode m) { super(m); }
497	>	final CFException ex;
498	>	FailingFunction(ExecutionMode m) { super(m); ex = new CFException(); }
499		public Integer apply(Integer x) {
500		invoked();
501		value = x;
502	<	throw new CFException();
502	>	throw ex;
503		}
504		}
505
506	<	class FailingBiFunction extends CheckedIntegerAction
506	>	static class FailingBiFunction extends CheckedIntegerAction
507		implements BiFunction<Integer, Integer, Integer>
508		{
509	<	FailingBiFunction(ExecutionMode m) { super(m); }
509	>	final CFException ex;
510	>	FailingBiFunction(ExecutionMode m) { super(m); ex = new CFException(); }
511		public Integer apply(Integer x, Integer y) {
512		invoked();
513		value = subtract(x, y);
514	<	throw new CFException();
514	>	throw ex;
515		}
516		}
517
518	<	class FailingRunnable extends CheckedAction implements Runnable {
519	<	FailingRunnable(ExecutionMode m) { super(m); }
518	>	static class FailingRunnable extends CheckedAction implements Runnable {
519	>	final CFException ex;
520	>	FailingRunnable(ExecutionMode m) { super(m); ex = new CFException(); }
521		public void run() {
522		invoked();
523	<	throw new CFException();
523	>	throw ex;
524		}
525		}
526
527	<	class CompletableFutureInc extends CheckedIntegerAction
527	>	static class CompletableFutureInc extends CheckedIntegerAction
528		implements Function<Integer, CompletableFuture<Integer>>
529		{
530		CompletableFutureInc(ExecutionMode m) { super(m); }
#	Line 599 | Line 537 | public class CompletableFutureTest exten
537		}
538		}
539
540	<	class FailingCompletableFutureFunction extends CheckedIntegerAction
540	>	static class FailingCompletableFutureFunction extends CheckedIntegerAction
541		implements Function<Integer, CompletableFuture<Integer>>
542		{
543	<	FailingCompletableFutureFunction(ExecutionMode m) { super(m); }
543	>	final CFException ex;
544	>	FailingCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
545		public CompletableFuture<Integer> apply(Integer x) {
546		invoked();
547		value = x;
548	<	throw new CFException();
548	>	throw ex;
549	>	}
550	>	}
551	>
552	>	static class CountingRejectingExecutor implements Executor {
553	>	final RejectedExecutionException ex = new RejectedExecutionException();
554	>	final AtomicInteger count = new AtomicInteger(0);
555	>	public void execute(Runnable r) {
556	>	count.getAndIncrement();
557	>	throw ex;
558		}
559		}
560
#	Line 908 | Line 856 | public class CompletableFutureTest exten
856		if (!createIncomplete) assertTrue(f.complete(v1));
857		final CompletableFuture<Integer> g = f.exceptionally
858		((Throwable t) -> {
911	–	// Should not be called
859		a.getAndIncrement();
860	<	throw new AssertionError();
860	>	threadFail("should not be called");
861	>	return null;            // unreached
862		});
863		if (createIncomplete) assertTrue(f.complete(v1));
864
#	Line 944 | Line 892 | public class CompletableFutureTest exten
892		assertEquals(1, a.get());
893		}}
894
895	+	/**
896	+	* If an "exceptionally action" throws an exception, it completes
897	+	* exceptionally with that exception
898	+	*/
899		public void testExceptionally_exceptionalCompletionActionFailed() {
900		for (boolean createIncomplete : new boolean[] { true, false })
901		{
#	Line 962 | Line 914 | public class CompletableFutureTest exten
914		if (createIncomplete) f.completeExceptionally(ex1);
915
916		checkCompletedWithWrappedException(g, ex2);
917	+	checkCompletedExceptionally(f, ex1);
918		assertEquals(1, a.get());
919		}}
920
#	Line 969 | Line 922 | public class CompletableFutureTest exten
922		* whenComplete action executes on normal completion, propagating
923		* source result.
924		*/
925	<	public void testWhenComplete_normalCompletion1() {
925	>	public void testWhenComplete_normalCompletion() {
926		for (ExecutionMode m : ExecutionMode.values())
927		for (boolean createIncomplete : new boolean[] { true, false })
928		for (Integer v1 : new Integer[] { 1, null })
#	Line 979 | Line 932 | public class CompletableFutureTest exten
932		if (!createIncomplete) assertTrue(f.complete(v1));
933		final CompletableFuture<Integer> g = m.whenComplete
934		(f,
935	<	(Integer x, Throwable t) -> {
935	>	(Integer result, Throwable t) -> {
936		m.checkExecutionMode();
937	<	threadAssertSame(x, v1);
937	>	threadAssertSame(result, v1);
938		threadAssertNull(t);
939		a.getAndIncrement();
940		});
#	Line 1006 | Line 959 | public class CompletableFutureTest exten
959		if (!createIncomplete) f.completeExceptionally(ex);
960		final CompletableFuture<Integer> g = m.whenComplete
961		(f,
962	<	(Integer x, Throwable t) -> {
962	>	(Integer result, Throwable t) -> {
963		m.checkExecutionMode();
964	<	threadAssertNull(x);
964	>	threadAssertNull(result);
965		threadAssertSame(t, ex);
966		a.getAndIncrement();
967		});
#	Line 1033 | Line 986 | public class CompletableFutureTest exten
986		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
987		final CompletableFuture<Integer> g = m.whenComplete
988		(f,
989	<	(Integer x, Throwable t) -> {
989	>	(Integer result, Throwable t) -> {
990		m.checkExecutionMode();
991	<	threadAssertNull(x);
991	>	threadAssertNull(result);
992		threadAssertTrue(t instanceof CancellationException);
993		a.getAndIncrement();
994		});
#	Line 1050 | Line 1003 | public class CompletableFutureTest exten
1003		* If a whenComplete action throws an exception when triggered by
1004		* a normal completion, it completes exceptionally
1005		*/
1006	<	public void testWhenComplete_actionFailed() {
1006	>	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
1007		for (boolean createIncomplete : new boolean[] { true, false })
1008		for (ExecutionMode m : ExecutionMode.values())
1009		for (Integer v1 : new Integer[] { 1, null })
#	Line 1061 | Line 1014 | public class CompletableFutureTest exten
1014		if (!createIncomplete) assertTrue(f.complete(v1));
1015		final CompletableFuture<Integer> g = m.whenComplete
1016		(f,
1017	<	(Integer x, Throwable t) -> {
1017	>	(Integer result, Throwable t) -> {
1018		m.checkExecutionMode();
1019	<	threadAssertSame(x, v1);
1019	>	threadAssertSame(result, v1);
1020		threadAssertNull(t);
1021		a.getAndIncrement();
1022		throw ex;
#	Line 1078 | Line 1031 | public class CompletableFutureTest exten
1031		/**
1032		* If a whenComplete action throws an exception when triggered by
1033		* a source completion that also throws an exception, the source
1034	<	* exception takes precedence.
1034	>	* exception takes precedence (unlike handle)
1035		*/
1036	<	public void testWhenComplete_actionFailedSourceFailed() {
1036	>	public void testWhenComplete_sourceFailedActionFailed() {
1037		for (boolean createIncomplete : new boolean[] { true, false })
1038		for (ExecutionMode m : ExecutionMode.values())
1039		{
#	Line 1092 | Line 1045 | public class CompletableFutureTest exten
1045		if (!createIncomplete) f.completeExceptionally(ex1);
1046		final CompletableFuture<Integer> g = m.whenComplete
1047		(f,
1048	<	(Integer x, Throwable t) -> {
1048	>	(Integer result, Throwable t) -> {
1049		m.checkExecutionMode();
1050		threadAssertSame(t, ex1);
1051	<	threadAssertNull(x);
1051	>	threadAssertNull(result);
1052		a.getAndIncrement();
1053		throw ex2;
1054		});
#	Line 1103 | Line 1056 | public class CompletableFutureTest exten
1056
1057		checkCompletedWithWrappedException(g, ex1);
1058		checkCompletedExceptionally(f, ex1);
1059	+	if (testImplementationDetails) {
1060	+	assertEquals(1, ex1.getSuppressed().length);
1061	+	assertSame(ex2, ex1.getSuppressed()[0]);
1062	+	}
1063		assertEquals(1, a.get());
1064		}}
1065
#	Line 1120 | Line 1077 | public class CompletableFutureTest exten
1077		if (!createIncomplete) assertTrue(f.complete(v1));
1078		final CompletableFuture<Integer> g = m.handle
1079		(f,
1080	<	(Integer x, Throwable t) -> {
1080	>	(Integer result, Throwable t) -> {
1081		m.checkExecutionMode();
1082	<	threadAssertSame(x, v1);
1082	>	threadAssertSame(result, v1);
1083		threadAssertNull(t);
1084		a.getAndIncrement();
1085		return inc(v1);
#	Line 1149 | Line 1106 | public class CompletableFutureTest exten
1106		if (!createIncomplete) f.completeExceptionally(ex);
1107		final CompletableFuture<Integer> g = m.handle
1108		(f,
1109	<	(Integer x, Throwable t) -> {
1109	>	(Integer result, Throwable t) -> {
1110		m.checkExecutionMode();
1111	<	threadAssertNull(x);
1111	>	threadAssertNull(result);
1112		threadAssertSame(t, ex);
1113		a.getAndIncrement();
1114		return v1;
#	Line 1178 | Line 1135 | public class CompletableFutureTest exten
1135		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1136		final CompletableFuture<Integer> g = m.handle
1137		(f,
1138	<	(Integer x, Throwable t) -> {
1138	>	(Integer result, Throwable t) -> {
1139		m.checkExecutionMode();
1140	<	threadAssertNull(x);
1140	>	threadAssertNull(result);
1141		threadAssertTrue(t instanceof CancellationException);
1142		a.getAndIncrement();
1143		return v1;
#	Line 1193 | Line 1150 | public class CompletableFutureTest exten
1150		}}
1151
1152		/**
1153	<	* handle result completes exceptionally if action does
1153	>	* If a "handle action" throws an exception when triggered by
1154	>	* a normal completion, it completes exceptionally
1155		*/
1156	<	public void testHandle_sourceFailedActionFailed() {
1156	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1157		for (ExecutionMode m : ExecutionMode.values())
1158		for (boolean createIncomplete : new boolean[] { true, false })
1159	+	for (Integer v1 : new Integer[] { 1, null })
1160		{
1161		final CompletableFuture<Integer> f = new CompletableFuture<>();
1162		final AtomicInteger a = new AtomicInteger(0);
1163	<	final CFException ex1 = new CFException();
1164	<	final CFException ex2 = new CFException();
1206	<	if (!createIncomplete) f.completeExceptionally(ex1);
1163	>	final CFException ex = new CFException();
1164	>	if (!createIncomplete) assertTrue(f.complete(v1));
1165		final CompletableFuture<Integer> g = m.handle
1166		(f,
1167	<	(Integer x, Throwable t) -> {
1167	>	(Integer result, Throwable t) -> {
1168		m.checkExecutionMode();
1169	<	threadAssertNull(x);
1170	<	threadAssertSame(ex1, t);
1169	>	threadAssertSame(result, v1);
1170	>	threadAssertNull(t);
1171		a.getAndIncrement();
1172	<	throw ex2;
1172	>	throw ex;
1173		});
1174	<	if (createIncomplete) f.completeExceptionally(ex1);
1174	>	if (createIncomplete) assertTrue(f.complete(v1));
1175
1176	<	checkCompletedWithWrappedException(g, ex2);
1177	<	checkCompletedExceptionally(f, ex1);
1176	>	checkCompletedWithWrappedException(g, ex);
1177	>	checkCompletedNormally(f, v1);
1178		assertEquals(1, a.get());
1179		}}
1180
1181	<	public void testHandle_sourceCompletedNormallyActionFailed() {
1182	<	for (ExecutionMode m : ExecutionMode.values())
1181	>	/**
1182	>	* If a "handle action" throws an exception when triggered by
1183	>	* a source completion that also throws an exception, the action
1184	>	* exception takes precedence (unlike whenComplete)
1185	>	*/
1186	>	public void testHandle_sourceFailedActionFailed() {
1187		for (boolean createIncomplete : new boolean[] { true, false })
1188	<	for (Integer v1 : new Integer[] { 1, null })
1188	>	for (ExecutionMode m : ExecutionMode.values())
1189		{
1228	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
1190		final AtomicInteger a = new AtomicInteger(0);
1191	<	final CFException ex = new CFException();
1192	<	if (!createIncomplete) assertTrue(f.complete(v1));
1191	>	final CFException ex1 = new CFException();
1192	>	final CFException ex2 = new CFException();
1193	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1194	>
1195	>	if (!createIncomplete) f.completeExceptionally(ex1);
1196		final CompletableFuture<Integer> g = m.handle
1197		(f,
1198	<	(Integer x, Throwable t) -> {
1198	>	(Integer result, Throwable t) -> {
1199		m.checkExecutionMode();
1200	<	threadAssertSame(x, v1);
1201	<	threadAssertNull(t);
1200	>	threadAssertNull(result);
1201	>	threadAssertSame(ex1, t);
1202		a.getAndIncrement();
1203	<	throw ex;
1203	>	throw ex2;
1204		});
1205	<	if (createIncomplete) assertTrue(f.complete(v1));
1205	>	if (createIncomplete) f.completeExceptionally(ex1);
1206
1207	<	checkCompletedWithWrappedException(g, ex);
1208	<	checkCompletedNormally(f, v1);
1207	>	checkCompletedWithWrappedException(g, ex2);
1208	>	checkCompletedExceptionally(f, ex1);
1209		assertEquals(1, a.get());
1210		}}
1211
#	Line 1274 | Line 1238 | public class CompletableFutureTest exten
1238		{
1239		final FailingRunnable r = new FailingRunnable(m);
1240		final CompletableFuture<Void> f = m.runAsync(r);
1241	<	checkCompletedWithWrappedCFException(f);
1241	>	checkCompletedWithWrappedException(f, r.ex);
1242		r.assertInvoked();
1243		}}
1244
1245	+	public void testRunAsync_rejectingExecutor() {
1246	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1247	+	try {
1248	+	CompletableFuture.runAsync(() -> {}, e);
1249	+	shouldThrow();
1250	+	} catch (Throwable t) {
1251	+	assertSame(e.ex, t);
1252	+	}
1253	+
1254	+	assertEquals(1, e.count.get());
1255	+	}
1256	+
1257		/**
1258		* supplyAsync completes with result of supplier
1259		*/
#	Line 1308 | Line 1284 | public class CompletableFutureTest exten
1284		{
1285		FailingSupplier r = new FailingSupplier(m);
1286		CompletableFuture<Integer> f = m.supplyAsync(r);
1287	<	checkCompletedWithWrappedCFException(f);
1287	>	checkCompletedWithWrappedException(f, r.ex);
1288		r.assertInvoked();
1289		}}
1290
1291	+	public void testSupplyAsync_rejectingExecutor() {
1292	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1293	+	try {
1294	+	CompletableFuture.supplyAsync(() -> null, e);
1295	+	shouldThrow();
1296	+	} catch (Throwable t) {
1297	+	assertSame(e.ex, t);
1298	+	}
1299	+
1300	+	assertEquals(1, e.count.get());
1301	+	}
1302	+
1303		// seq completion methods
1304
1305		/**
#	Line 1430 | Line 1418 | public class CompletableFutureTest exten
1418		final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1419		final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1420
1421	<	checkCompletedWithWrappedCFException(h0);
1422	<	checkCompletedWithWrappedCFException(h1);
1423	<	checkCompletedWithWrappedCFException(h2);
1424	<	checkCompletedWithWrappedCFException(h3);
1425	<	checkCompletedWithWrappedCFException(h4);
1426	<	checkCompletedWithWrappedCFException(h5);
1421	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1422	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1423	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1424	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1425	>	checkCompletedWithWrappedException(h4, rs[4].ex);
1426	>	checkCompletedWithWrappedException(h5, rs[5].ex);
1427		checkCompletedNormally(f, v1);
1428		}}
1429
#	Line 1534 | Line 1522 | public class CompletableFutureTest exten
1522		final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1523		final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1524
1525	<	checkCompletedWithWrappedCFException(h0);
1526	<	checkCompletedWithWrappedCFException(h1);
1527	<	checkCompletedWithWrappedCFException(h2);
1528	<	checkCompletedWithWrappedCFException(h3);
1525	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1526	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1527	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1528	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1529		checkCompletedNormally(f, v1);
1530		}}
1531
#	Line 1636 | Line 1624 | public class CompletableFutureTest exten
1624		final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1625		final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1626
1627	<	checkCompletedWithWrappedCFException(h0);
1628	<	checkCompletedWithWrappedCFException(h1);
1629	<	checkCompletedWithWrappedCFException(h2);
1630	<	checkCompletedWithWrappedCFException(h3);
1627	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1628	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1629	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1630	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1631		checkCompletedNormally(f, v1);
1632		}}
1633
#	Line 1801 | Line 1789 | public class CompletableFutureTest exten
1789		assertTrue(snd.complete(w2));
1790		final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1791
1792	<	checkCompletedWithWrappedCFException(h1);
1793	<	checkCompletedWithWrappedCFException(h2);
1794	<	checkCompletedWithWrappedCFException(h3);
1792	>	checkCompletedWithWrappedException(h1, r1.ex);
1793	>	checkCompletedWithWrappedException(h2, r2.ex);
1794	>	checkCompletedWithWrappedException(h3, r3.ex);
1795		r1.assertInvoked();
1796		r2.assertInvoked();
1797		r3.assertInvoked();
#	Line 1965 | Line 1953 | public class CompletableFutureTest exten
1953		assertTrue(snd.complete(w2));
1954		final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1955
1956	<	checkCompletedWithWrappedCFException(h1);
1957	<	checkCompletedWithWrappedCFException(h2);
1958	<	checkCompletedWithWrappedCFException(h3);
1956	>	checkCompletedWithWrappedException(h1, r1.ex);
1957	>	checkCompletedWithWrappedException(h2, r2.ex);
1958	>	checkCompletedWithWrappedException(h3, r3.ex);
1959		r1.assertInvoked();
1960		r2.assertInvoked();
1961		r3.assertInvoked();
#	Line 2129 | Line 2117 | public class CompletableFutureTest exten
2117		assertTrue(snd.complete(w2));
2118		final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2119
2120	<	checkCompletedWithWrappedCFException(h1);
2121	<	checkCompletedWithWrappedCFException(h2);
2122	<	checkCompletedWithWrappedCFException(h3);
2120	>	checkCompletedWithWrappedException(h1, r1.ex);
2121	>	checkCompletedWithWrappedException(h2, r2.ex);
2122	>	checkCompletedWithWrappedException(h3, r3.ex);
2123		r1.assertInvoked();
2124		r2.assertInvoked();
2125		r3.assertInvoked();
#	Line 2421 | Line 2409 | public class CompletableFutureTest exten
2409		f.complete(v1);
2410		final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2411		final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2412	<	checkCompletedWithWrappedCFException(h0);
2413	<	checkCompletedWithWrappedCFException(h1);
2414	<	checkCompletedWithWrappedCFException(h2);
2415	<	checkCompletedWithWrappedCFException(h3);
2412	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2413	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2414	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2415	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2416		for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2417
2418		g.complete(v2);
#	Line 2433 | Line 2421 | public class CompletableFutureTest exten
2421		final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2422		final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2423
2424	<	checkCompletedWithWrappedCFException(h4);
2424	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2425		assertTrue(Objects.equals(v1, rs[4].value) ||
2426		Objects.equals(v2, rs[4].value));
2427	<	checkCompletedWithWrappedCFException(h5);
2427	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2428		assertTrue(Objects.equals(v1, rs[5].value) ||
2429		Objects.equals(v2, rs[5].value));
2430
#	Line 2680 | Line 2668 | public class CompletableFutureTest exten
2668		f.complete(v1);
2669		final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2670		final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2671	<	checkCompletedWithWrappedCFException(h0);
2672	<	checkCompletedWithWrappedCFException(h1);
2673	<	checkCompletedWithWrappedCFException(h2);
2674	<	checkCompletedWithWrappedCFException(h3);
2671	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2672	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2673	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2674	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2675		for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2676
2677		g.complete(v2);
#	Line 2692 | Line 2680 | public class CompletableFutureTest exten
2680		final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2681		final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2682
2683	<	checkCompletedWithWrappedCFException(h4);
2683	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2684		assertTrue(Objects.equals(v1, rs[4].value) ||
2685		Objects.equals(v2, rs[4].value));
2686	<	checkCompletedWithWrappedCFException(h5);
2686	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2687		assertTrue(Objects.equals(v1, rs[5].value) ||
2688		Objects.equals(v2, rs[5].value));
2689
#	Line 2711 | Line 2699 | public class CompletableFutureTest exten
2699		for (ExecutionMode m : ExecutionMode.values())
2700		for (Integer v1 : new Integer[] { 1, null })
2701		for (Integer v2 : new Integer[] { 2, null })
2702	+	for (boolean pushNop : new boolean[] { true, false })
2703		{
2704		final CompletableFuture<Integer> f = new CompletableFuture<>();
2705		final CompletableFuture<Integer> g = new CompletableFuture<>();
#	Line 2723 | Line 2712 | public class CompletableFutureTest exten
2712		checkIncomplete(h1);
2713		rs[0].assertNotInvoked();
2714		rs[1].assertNotInvoked();
2715	+	if (pushNop) {          // ad hoc test of intra-completion interference
2716	+	m.thenRun(f, () -> {});
2717	+	m.thenRun(g, () -> {});
2718	+	}
2719		f.complete(v1);
2720		checkCompletedNormally(h0, null);
2721		checkCompletedNormally(h1, null);
#	Line 2935 | Line 2928 | public class CompletableFutureTest exten
2928		assertTrue(f.complete(v1));
2929		final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2930		final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2931	<	checkCompletedWithWrappedCFException(h0);
2932	<	checkCompletedWithWrappedCFException(h1);
2933	<	checkCompletedWithWrappedCFException(h2);
2934	<	checkCompletedWithWrappedCFException(h3);
2931	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2932	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2933	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2934	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2935		for (int i = 0; i < 4; i++) rs[i].assertInvoked();
2936		assertTrue(g.complete(v2));
2937		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2938		final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2939	<	checkCompletedWithWrappedCFException(h4);
2940	<	checkCompletedWithWrappedCFException(h5);
2939	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2940	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2941
2942		checkCompletedNormally(f, v1);
2943		checkCompletedNormally(g, v2);
#	Line 3005 | Line 2998 | public class CompletableFutureTest exten
2998		final CompletableFuture<Integer> g = m.thenCompose(f, r);
2999		if (createIncomplete) assertTrue(f.complete(v1));
3000
3001	<	checkCompletedWithWrappedCFException(g);
3001	>	checkCompletedWithWrappedException(g, r.ex);
3002		checkCompletedNormally(f, v1);
3003		}}
3004
#	Line 3114 | Line 3107 | public class CompletableFutureTest exten
3107		}
3108		}
3109
3110	<	public void testAllOf_backwards() throws Exception {
3110	>	public void testAllOf_normal_backwards() throws Exception {
3111		for (int k = 1; k < 10; k++) {
3112		CompletableFuture<Integer>[] fs
3113		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
#	Line 3142 | Line 3135 | public class CompletableFutureTest exten
3135		for (int i = 0; i < k; i++) {
3136		checkIncomplete(f);
3137		checkIncomplete(CompletableFuture.allOf(fs));
3138	<	if (i != k/2) {
3138	>	if (i != k / 2) {
3139		fs[i].complete(i);
3140		checkCompletedNormally(fs[i], i);
3141		} else {
#	Line 3347 | Line 3340 | public class CompletableFutureTest exten
3340		() -> f.obtrudeException(null),
3341
3342		() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3343	<	() -> CompletableFuture.delayedExecutor(1L, null, new ThreadExecutor()),
3343	>	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3344		() -> CompletableFuture.delayedExecutor(1L, null),
3345
3346		() -> f.orTimeout(1L, null),
3347		() -> f.completeOnTimeout(42, 1L, null),
3348	+
3349	+	() -> CompletableFuture.failedFuture(null),
3350	+	() -> CompletableFuture.failedStage(null),
3351		};
3352
3353		assertThrows(NullPointerException.class, throwingActions);
#	Line 3359 | Line 3355 | public class CompletableFutureTest exten
3355		}
3356
3357		/**
3358	+	* Test submissions to an executor that rejects all tasks.
3359	+	*/
3360	+	public void testRejectingExecutor() {
3361	+	for (Integer v : new Integer[] { 1, null })
3362	+	{
3363	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3364	+
3365	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3366	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3367	+
3368	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3369	+
3370	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3371	+	srcs.add(complete);
3372	+	srcs.add(incomplete);
3373	+
3374	+	for (CompletableFuture<Integer> src : srcs) {
3375	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3376	+	fs.add(src.thenRunAsync(() -> {}, e));
3377	+	fs.add(src.thenAcceptAsync((z) -> {}, e));
3378	+	fs.add(src.thenApplyAsync((z) -> z, e));
3379	+
3380	+	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3381	+	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3382	+	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3383	+
3384	+	fs.add(src.applyToEitherAsync(src, (z) -> z, e));
3385	+	fs.add(src.acceptEitherAsync(src, (z) -> {}, e));
3386	+	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3387	+
3388	+	fs.add(src.thenComposeAsync((z) -> null, e));
3389	+	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3390	+	fs.add(src.handleAsync((z, t) -> null, e));
3391	+
3392	+	for (CompletableFuture<?> future : fs) {
3393	+	if (src.isDone())
3394	+	checkCompletedWithWrappedException(future, e.ex);
3395	+	else
3396	+	checkIncomplete(future);
3397	+	}
3398	+	futures.addAll(fs);
3399	+	}
3400	+
3401	+	{
3402	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3403	+
3404	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3405	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3406	+
3407	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3408	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3409	+
3410	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3411	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3412	+
3413	+	for (CompletableFuture<?> future : fs)
3414	+	checkIncomplete(future);
3415	+	futures.addAll(fs);
3416	+	}
3417	+
3418	+	{
3419	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3420	+
3421	+	fs.add(complete.applyToEitherAsync(incomplete, (z) -> z, e));
3422	+	fs.add(incomplete.applyToEitherAsync(complete, (z) -> z, e));
3423	+
3424	+	fs.add(complete.acceptEitherAsync(incomplete, (z) -> {}, e));
3425	+	fs.add(incomplete.acceptEitherAsync(complete, (z) -> {}, e));
3426	+
3427	+	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3428	+	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3429	+
3430	+	for (CompletableFuture<?> future : fs)
3431	+	checkCompletedWithWrappedException(future, e.ex);
3432	+	futures.addAll(fs);
3433	+	}
3434	+
3435	+	incomplete.complete(v);
3436	+
3437	+	for (CompletableFuture<?> future : futures)
3438	+	checkCompletedWithWrappedException(future, e.ex);
3439	+
3440	+	assertEquals(futures.size(), e.count.get());
3441	+	}}
3442	+
3443	+	/**
3444	+	* Test submissions to an executor that rejects all tasks, but
3445	+	* should never be invoked because the dependent future is
3446	+	* explicitly completed.
3447	+	*/
3448	+	public void testRejectingExecutorNeverInvoked() {
3449	+	for (Integer v : new Integer[] { 1, null })
3450	+	{
3451	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3452	+
3453	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3454	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3455	+
3456	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3457	+
3458	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3459	+	srcs.add(complete);
3460	+	srcs.add(incomplete);
3461	+
3462	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3463	+	fs.add(incomplete.thenRunAsync(() -> {}, e));
3464	+	fs.add(incomplete.thenAcceptAsync((z) -> {}, e));
3465	+	fs.add(incomplete.thenApplyAsync((z) -> z, e));
3466	+
3467	+	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3468	+	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3469	+	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3470	+
3471	+	fs.add(incomplete.applyToEitherAsync(incomplete, (z) -> z, e));
3472	+	fs.add(incomplete.acceptEitherAsync(incomplete, (z) -> {}, e));
3473	+	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3474	+
3475	+	fs.add(incomplete.thenComposeAsync((z) -> null, e));
3476	+	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3477	+	fs.add(incomplete.handleAsync((z, t) -> null, e));
3478	+
3479	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3480	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3481	+
3482	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3483	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3484	+
3485	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3486	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3487	+
3488	+	for (CompletableFuture<?> future : fs)
3489	+	checkIncomplete(future);
3490	+
3491	+	for (CompletableFuture<?> future : fs)
3492	+	future.complete(null);
3493	+
3494	+	incomplete.complete(v);
3495	+
3496	+	for (CompletableFuture<?> future : fs)
3497	+	checkCompletedNormally(future, null);
3498	+
3499	+	assertEquals(0, e.count.get());
3500	+	}}
3501	+
3502	+	/**
3503		* toCompletableFuture returns this CompletableFuture.
3504		*/
3505		public void testToCompletableFuture() {
#	Line 3390 | Line 3531 | public class CompletableFutureTest exten
3531		* completedStage returns a completed CompletionStage
3532		*/
3533		public void testCompletedStage() {
3534	<	AtomicInteger x = new AtomicInteger();
3534	>	AtomicInteger x = new AtomicInteger(0);
3535		AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3536		CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3537		f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
#	Line 3419 | Line 3560 | public class CompletableFutureTest exten
3560		public void testFailedFuture() {
3561		CFException ex = new CFException();
3562		CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3563	<	checkCompletedExceptionallyWithRootCause(f, ex);
3563	>	checkCompletedExceptionally(f, ex);
3564		}
3565
3566		/**
#	Line 3458 | Line 3599 | public class CompletableFutureTest exten
3599		CFException ex = new CFException();
3600		f.completeExceptionally(ex);
3601		checkCompletedExceptionally(f, ex);
3602	<	checkCompletedWithWrappedCFException(g);
3602	>	checkCompletedWithWrappedException(g, ex);
3603		}
3604
3605		/**
#	Line 3468 | Line 3609 | public class CompletableFutureTest exten
3609		public void testMinimalCompletionStage() {
3610		CompletableFuture<Integer> f = new CompletableFuture<>();
3611		CompletionStage<Integer> g = f.minimalCompletionStage();
3612	<	AtomicInteger x = new AtomicInteger();
3612	>	AtomicInteger x = new AtomicInteger(0);
3613		AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3614		checkIncomplete(f);
3615		g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
#	Line 3485 | Line 3626 | public class CompletableFutureTest exten
3626		public void testMinimalCompletionStage2() {
3627		CompletableFuture<Integer> f = new CompletableFuture<>();
3628		CompletionStage<Integer> g = f.minimalCompletionStage();
3629	<	AtomicInteger x = new AtomicInteger();
3629	>	AtomicInteger x = new AtomicInteger(0);
3630		AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3631		g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3632		checkIncomplete(f);
#	Line 3503 | Line 3644 | public class CompletableFutureTest exten
3644		public void testFailedStage() {
3645		CFException ex = new CFException();
3646		CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3647	<	AtomicInteger x = new AtomicInteger();
3647	>	AtomicInteger x = new AtomicInteger(0);
3648		AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3649		f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3650		assertEquals(x.get(), 0);
3651	<	assertEquals(r.get().getCause(), ex);
3651	>	assertEquals(r.get(), ex);
3652		}
3653
3654		/**
3655		* completeAsync completes with value of given supplier
3656		*/
3657		public void testCompleteAsync() {
3658	+	for (Integer v1 : new Integer[] { 1, null })
3659	+	{
3660		CompletableFuture<Integer> f = new CompletableFuture<>();
3661	<	f.completeAsync(() -> 1);
3661	>	f.completeAsync(() -> v1);
3662		f.join();
3663	<	checkCompletedNormally(f, 1);
3664	<	}
3663	>	checkCompletedNormally(f, v1);
3664	>	}}
3665
3666		/**
3667		* completeAsync completes exceptionally if given supplier throws
#	Line 3530 | Line 3673 | public class CompletableFutureTest exten
3673		try {
3674		f.join();
3675		shouldThrow();
3676	<	} catch (Exception success) {}
3677	<	checkCompletedWithWrappedCFException(f);
3676	>	} catch (CompletionException success) {}
3677	>	checkCompletedWithWrappedException(f, ex);
3678		}
3679
3680		/**
3681		* completeAsync with given executor completes with value of given supplier
3682		*/
3683		public void testCompleteAsync3() {
3684	+	for (Integer v1 : new Integer[] { 1, null })
3685	+	{
3686		CompletableFuture<Integer> f = new CompletableFuture<>();
3687	<	f.completeAsync(() -> 1, new ThreadExecutor());
3688	<	f.join();
3689	<	checkCompletedNormally(f, 1);
3690	<	}
3687	>	ThreadExecutor executor = new ThreadExecutor();
3688	>	f.completeAsync(() -> v1, executor);
3689	>	assertSame(v1, f.join());
3690	>	checkCompletedNormally(f, v1);
3691	>	assertEquals(1, executor.count.get());
3692	>	}}
3693
3694		/**
3695		* completeAsync with given executor completes exceptionally if
#	Line 3551 | Line 3698 | public class CompletableFutureTest exten
3698		public void testCompleteAsync4() {
3699		CompletableFuture<Integer> f = new CompletableFuture<>();
3700		CFException ex = new CFException();
3701	<	f.completeAsync(() -> {if (true) throw ex; return 1;}, new ThreadExecutor());
3701	>	ThreadExecutor executor = new ThreadExecutor();
3702	>	f.completeAsync(() -> {if (true) throw ex; return 1;}, executor);
3703		try {
3704		f.join();
3705		shouldThrow();
3706	<	} catch (Exception success) {}
3707	<	checkCompletedWithWrappedCFException(f);
3706	>	} catch (CompletionException success) {}
3707	>	checkCompletedWithWrappedException(f, ex);
3708	>	assertEquals(1, executor.count.get());
3709		}
3710
3711		/**
3712		* orTimeout completes with TimeoutException if not complete
3713		*/
3714	<	public void testOrTimeout() {
3714	>	public void testOrTimeout_timesOut() {
3715	>	long timeoutMillis = timeoutMillis();
3716		CompletableFuture<Integer> f = new CompletableFuture<>();
3717	<	f.orTimeout(SHORT_DELAY_MS, MILLISECONDS);
3718	<	checkCompletedExceptionallyWithTimeout(f);
3717	>	long startTime = System.nanoTime();
3718	>	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3719	>	checkCompletedWithTimeoutException(f);
3720	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3721		}
3722
3723		/**
3724		* orTimeout completes normally if completed before timeout
3725		*/
3726	<	public void testOrTimeout2() {
3726	>	public void testOrTimeout_completed() {
3727	>	for (Integer v1 : new Integer[] { 1, null })
3728	>	{
3729		CompletableFuture<Integer> f = new CompletableFuture<>();
3730	<	f.complete(1);
3731	<	f.orTimeout(SHORT_DELAY_MS, MILLISECONDS);
3732	<	checkCompletedNormally(f, 1);
3733	<	}
3730	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3731	>	long startTime = System.nanoTime();
3732	>	f.complete(v1);
3733	>	assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3734	>	assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3735	>	g.complete(v1);
3736	>	checkCompletedNormally(f, v1);
3737	>	checkCompletedNormally(g, v1);
3738	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3739	>	}}
3740
3741		/**
3742		* completeOnTimeout completes with given value if not complete
3743		*/
3744	<	public void testCompleteOnTimeout() {
3745	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3746	<	f.completeOnTimeout(-1, SHORT_DELAY_MS, MILLISECONDS);
3587	<	f.join();
3588	<	checkCompletedNormally(f, -1);
3744	>	public void testCompleteOnTimeout_timesOut() {
3745	>	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3746	>	() -> testCompleteOnTimeout_timesOut(null));
3747		}
3748
3749		/**
3750	<	* completeOnTimeout has no effect if completed within timeout
3750	>	* completeOnTimeout completes with given value if not complete
3751		*/
3752	<	public void testCompleteOnTimeout2() {
3752	>	public void testCompleteOnTimeout_timesOut(Integer v) {
3753	>	long timeoutMillis = timeoutMillis();
3754		CompletableFuture<Integer> f = new CompletableFuture<>();
3755	<	f.complete(1);
3756	<	f.completeOnTimeout(-1, SHORT_DELAY_MS, MILLISECONDS);
3757	<	checkCompletedNormally(f, 1);
3755	>	long startTime = System.nanoTime();
3756	>	assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS));
3757	>	assertSame(v, f.join());
3758	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3759	>	f.complete(99);         // should have no effect
3760	>	checkCompletedNormally(f, v);
3761		}
3762
3763		/**
3764	<	* delayedExecutor returns an executor that delays submission
3764	>	* completeOnTimeout has no effect if completed within timeout
3765		*/
3766	<	public void testDelayedExecutor() throws Exception {
3767	<	long timeoutMillis = SMALL_DELAY_MS;
3768	<	Executor d = CompletableFuture.delayedExecutor(timeoutMillis,
3769	<	MILLISECONDS);
3766	>	public void testCompleteOnTimeout_completed() {
3767	>	for (Integer v1 : new Integer[] { 1, null })
3768	>	{
3769	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3770	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3771		long startTime = System.nanoTime();
3772	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(() -> 1, d);
3773	<	assertNull(f.getNow(null));
3774	<	assertEquals(1, (int) f.get(LONG_DELAY_MS, MILLISECONDS));
3775	<	assertTrue(millisElapsedSince(startTime) > timeoutMillis/2);
3776	<	checkCompletedNormally(f, 1);
3777	<	}
3772	>	f.complete(v1);
3773	>	assertSame(f, f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3774	>	assertSame(g, g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3775	>	g.complete(v1);
3776	>	checkCompletedNormally(f, v1);
3777	>	checkCompletedNormally(g, v1);
3778	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3779	>	}}
3780
3781		/**
3782	<	* delayedExecutor for a given executor returns an executor that
3618	<	* delays submission
3782	>	* delayedExecutor returns an executor that delays submission
3783		*/
3784	<	public void testDelayedExecutor2() throws Exception {
3785	<	long timeoutMillis = SMALL_DELAY_MS;
3786	<	Executor d = CompletableFuture.delayedExecutor(timeoutMillis,
3787	<	MILLISECONDS,
3788	<	new ThreadExecutor());
3784	>	public void testDelayedExecutor() {
3785	>	testInParallel(() -> testDelayedExecutor(null, null),
3786	>	() -> testDelayedExecutor(null, 1),
3787	>	() -> testDelayedExecutor(new ThreadExecutor(), 1),
3788	>	() -> testDelayedExecutor(new ThreadExecutor(), 1));
3789	>	}
3790	>
3791	>	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
3792	>	long timeoutMillis = timeoutMillis();
3793	>	// Use an "unreasonably long" long timeout to catch lingering threads
3794	>	long longTimeoutMillis = 1000 * 60 * 60 * 24;
3795	>	final Executor delayer, longDelayer;
3796	>	if (executor == null) {
3797	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
3798	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
3799	>	} else {
3800	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
3801	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
3802	>	}
3803		long startTime = System.nanoTime();
3804	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(() -> 1, d);
3805	<	assertNull(f.getNow(null));
3806	<	assertEquals(1, (int) f.get(LONG_DELAY_MS, MILLISECONDS));
3807	<	assertTrue(millisElapsedSince(startTime) > timeoutMillis/2);
3808	<	checkCompletedNormally(f, 1);
3804	>	CompletableFuture<Integer> f =
3805	>	CompletableFuture.supplyAsync(() -> v, delayer);
3806	>	CompletableFuture<Integer> g =
3807	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
3808	>
3809	>	assertNull(g.getNow(null));
3810	>
3811	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
3812	>	long millisElapsed = millisElapsedSince(startTime);
3813	>	assertTrue(millisElapsed >= timeoutMillis);
3814	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
3815	>
3816	>	checkCompletedNormally(f, v);
3817	>
3818	>	checkIncomplete(g);
3819	>	assertTrue(g.cancel(true));
3820		}
3821
3822		//--- tests of implementation details; not part of official tck ---
3823
3824		Object resultOf(CompletableFuture<?> f) {
3825	+	SecurityManager sm = System.getSecurityManager();
3826	+	if (sm != null) {
3827	+	try {
3828	+	System.setSecurityManager(null);
3829	+	} catch (SecurityException giveUp) {
3830	+	return "Reflection not available";
3831	+	}
3832	+	}
3833	+
3834		try {
3835		java.lang.reflect.Field resultField
3836		= CompletableFuture.class.getDeclaredField("result");
3837		resultField.setAccessible(true);
3838		return resultField.get(f);
3839	<	} catch (Throwable t) { throw new AssertionError(t); }
3839	>	} catch (Throwable t) {
3840	>	throw new AssertionError(t);
3841	>	} finally {
3842	>	if (sm != null) System.setSecurityManager(sm);
3843	>	}
3844		}
3845
3846		public void testExceptionPropagationReusesResultObject() {
#	Line 3649 | Line 3851 | public class CompletableFutureTest exten
3851		final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
3852		final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3853
3854	+	final Runnable noopRunnable = new Noop(m);
3855	+	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
3856	+	final Function<Integer, Integer> incFunction = new IncFunction(m);
3857	+
3858		List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
3859		= new ArrayList<>();
3860
3861	<	funs.add((y) -> m.thenRun(y, new Noop(m)));
3862	<	funs.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
3863	<	funs.add((y) -> m.thenApply(y, new IncFunction(m)));
3864	<
3865	<	funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
3866	<	funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
3867	<	funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
3861	>	funs.add((y) -> m.thenRun(y, noopRunnable));
3862	>	funs.add((y) -> m.thenAccept(y, noopConsumer));
3863	>	funs.add((y) -> m.thenApply(y, incFunction));
3864	>
3865	>	funs.add((y) -> m.runAfterEither(y, incomplete, noopRunnable));
3866	>	funs.add((y) -> m.acceptEither(y, incomplete, noopConsumer));
3867	>	funs.add((y) -> m.applyToEither(y, incomplete, incFunction));
3868
3869	<	funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
3869	>	funs.add((y) -> m.runAfterBoth(y, v42, noopRunnable));
3870	>	funs.add((y) -> m.runAfterBoth(v42, y, noopRunnable));
3871		funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3872	+	funs.add((y) -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
3873		funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
3874	+	funs.add((y) -> m.thenCombine(v42, y, new SubtractFunction(m)));
3875
3876	<	funs.add((y) -> m.whenComplete(y, (Integer x, Throwable t) -> {}));
3876	>	funs.add((y) -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
3877
3878		funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
3879
3880	<	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
3881	<	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
3880	>	funs.add((y) -> CompletableFuture.allOf(y));
3881	>	funs.add((y) -> CompletableFuture.allOf(y, v42));
3882	>	funs.add((y) -> CompletableFuture.allOf(v42, y));
3883	>	funs.add((y) -> CompletableFuture.anyOf(y));
3884	>	funs.add((y) -> CompletableFuture.anyOf(y, incomplete));
3885	>	funs.add((y) -> CompletableFuture.anyOf(incomplete, y));
3886
3887		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3888		fun : funs) {
3889		CompletableFuture<Integer> f = new CompletableFuture<>();
3890		f.completeExceptionally(ex);
3891	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3891	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3892		checkCompletedWithWrappedException(src, ex);
3893		CompletableFuture<?> dep = fun.apply(src);
3894		checkCompletedWithWrappedException(dep, ex);
#	Line 3685 | Line 3898 | public class CompletableFutureTest exten
3898		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3899		fun : funs) {
3900		CompletableFuture<Integer> f = new CompletableFuture<>();
3901	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3901	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3902		CompletableFuture<?> dep = fun.apply(src);
3903		f.completeExceptionally(ex);
3904		checkCompletedWithWrappedException(src, ex);
#	Line 3699 | Line 3912 | public class CompletableFutureTest exten
3912		CompletableFuture<Integer> f = new CompletableFuture<>();
3913		f.cancel(mayInterruptIfRunning);
3914		checkCancelled(f);
3915	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3915	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3916		checkCompletedWithWrappedCancellationException(src);
3917		CompletableFuture<?> dep = fun.apply(src);
3918		checkCompletedWithWrappedCancellationException(dep);
#	Line 3710 | Line 3923 | public class CompletableFutureTest exten
3923		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3924		fun : funs) {
3925		CompletableFuture<Integer> f = new CompletableFuture<>();
3926	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3926	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3927		CompletableFuture<?> dep = fun.apply(src);
3928		f.cancel(mayInterruptIfRunning);
3929		checkCancelled(f);
#	Line 3720 | Line 3933 | public class CompletableFutureTest exten
3933		}
3934		}}
3935
3936	+	/**
3937	+	* Minimal completion stages throw UOE for most non-CompletionStage methods
3938	+	*/
3939	+	public void testMinimalCompletionStage_minimality() {
3940	+	if (!testImplementationDetails) return;
3941	+	Function<Method, String> toSignature =
3942	+	(method) -> method.getName() + Arrays.toString(method.getParameterTypes());
3943	+	Predicate<Method> isNotStatic =
3944	+	(method) -> (method.getModifiers() & Modifier.STATIC) == 0;
3945	+	List<Method> minimalMethods =
3946	+	Stream.of(Object.class, CompletionStage.class)
3947	+	.flatMap((klazz) -> Stream.of(klazz.getMethods()))
3948	+	.filter(isNotStatic)
3949	+	.collect(Collectors.toList());
3950	+	// Methods from CompletableFuture permitted NOT to throw UOE
3951	+	String[] signatureWhitelist = {
3952	+	"newIncompleteFuture[]",
3953	+	"defaultExecutor[]",
3954	+	"minimalCompletionStage[]",
3955	+	"copy[]",
3956	+	};
3957	+	Set<String> permittedMethodSignatures =
3958	+	Stream.concat(minimalMethods.stream().map(toSignature),
3959	+	Stream.of(signatureWhitelist))
3960	+	.collect(Collectors.toSet());
3961	+	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
3962	+	.filter(isNotStatic)
3963	+	.filter((method) -> !permittedMethodSignatures.contains(toSignature.apply(method)))
3964	+	.collect(Collectors.toList());
3965	+
3966	+	List<CompletionStage<Integer>> stages = new ArrayList<>();
3967	+	CompletionStage<Integer> min =
3968	+	new CompletableFuture<Integer>().minimalCompletionStage();
3969	+	stages.add(min);
3970	+	stages.add(min.thenApply(x -> x));
3971	+	stages.add(CompletableFuture.completedStage(1));
3972	+	stages.add(CompletableFuture.failedStage(new CFException()));
3973	+
3974	+	List<Method> bugs = new ArrayList<>();
3975	+	for (Method method : allMethods) {
3976	+	Class<?>[] parameterTypes = method.getParameterTypes();
3977	+	Object[] args = new Object[parameterTypes.length];
3978	+	// Manufacture boxed primitives for primitive params
3979	+	for (int i = 0; i < args.length; i++) {
3980	+	Class<?> type = parameterTypes[i];
3981	+	if (parameterTypes[i] == boolean.class)
3982	+	args[i] = false;
3983	+	else if (parameterTypes[i] == int.class)
3984	+	args[i] = 0;
3985	+	else if (parameterTypes[i] == long.class)
3986	+	args[i] = 0L;
3987	+	}
3988	+	for (CompletionStage<Integer> stage : stages) {
3989	+	try {
3990	+	method.invoke(stage, args);
3991	+	bugs.add(method);
3992	+	}
3993	+	catch (java.lang.reflect.InvocationTargetException expected) {
3994	+	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
3995	+	bugs.add(method);
3996	+	// expected.getCause().printStackTrace();
3997	+	}
3998	+	}
3999	+	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4000	+	}
4001	+	}
4002	+	if (!bugs.isEmpty())
4003	+	throw new Error("Methods did not throw UOE: " + bugs);
4004	+	}
4005	+
4006	+	/**
4007	+	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4008	+	*/
4009	+	public void testMinimalCompletionStage_toCompletableFuture_mutable() {
4010	+	for (Integer v1 : new Integer[] { 1, null })
4011	+	{
4012	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4013	+	CompletionStage minimal = f.minimalCompletionStage();
4014	+	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4015	+	g.complete(v1);
4016	+	checkCompletedNormally(g, v1);
4017	+	checkIncomplete(f);
4018	+	checkIncomplete(minimal.toCompletableFuture());
4019	+	}}
4020	+
4021	+	/**
4022	+	* minimalStage.toCompletableFuture().join() awaits completion
4023	+	*/
4024	+	public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception {
4025	+	for (boolean createIncomplete : new boolean[] { true, false })
4026	+	for (Integer v1 : new Integer[] { 1, null })
4027	+	{
4028	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4029	+	if (!createIncomplete) assertTrue(f.complete(v1));
4030	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4031	+	if (createIncomplete) assertTrue(f.complete(v1));
4032	+	assertEquals(v1, minimal.toCompletableFuture().join());
4033	+	assertEquals(v1, minimal.toCompletableFuture().get());
4034	+	checkCompletedNormally(minimal.toCompletableFuture(), v1);
4035	+	}}
4036	+
4037	+	/** Demo utility method for external reliable toCompletableFuture */
4038	+	static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) {
4039	+	CompletableFuture<T> f = new CompletableFuture<>();
4040	+	stage.handle((T t, Throwable ex) -> {
4041	+	if (ex != null) f.completeExceptionally(ex);
4042	+	else f.complete(t);
4043	+	return null;
4044	+	});
4045	+	return f;
4046	+	}
4047	+
4048	+	/** Demo utility method to join a CompletionStage */
4049	+	static <T> T join(CompletionStage<T> stage) {
4050	+	return toCompletableFuture(stage).join();
4051	+	}
4052	+
4053	+	/**
4054	+	* Joining a minimal stage "by hand" works
4055	+	*/
4056	+	public void testMinimalCompletionStage_join_by_hand() {
4057	+	for (boolean createIncomplete : new boolean[] { true, false })
4058	+	for (Integer v1 : new Integer[] { 1, null })
4059	+	{
4060	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4061	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4062	+	CompletableFuture<Integer> g = new CompletableFuture<>();
4063	+	if (!createIncomplete) assertTrue(f.complete(v1));
4064	+	minimal.thenAccept((x) -> g.complete(x));
4065	+	if (createIncomplete) assertTrue(f.complete(v1));
4066	+	g.join();
4067	+	checkCompletedNormally(g, v1);
4068	+	checkCompletedNormally(f, v1);
4069	+	assertEquals(v1, join(minimal));
4070	+	}}
4071	+
4072	+	static class Monad {
4073	+	static class ZeroException extends RuntimeException {
4074	+	public ZeroException() { super("monadic zero"); }
4075	+	}
4076	+	// "return", "unit"
4077	+	static <T> CompletableFuture<T> unit(T value) {
4078	+	return completedFuture(value);
4079	+	}
4080	+	// monadic zero ?
4081	+	static <T> CompletableFuture<T> zero() {
4082	+	return failedFuture(new ZeroException());
4083	+	}
4084	+	// >=>
4085	+	static <T,U,V> Function<T, CompletableFuture<V>> compose
4086	+	(Function<T, CompletableFuture<U>> f,
4087	+	Function<U, CompletableFuture<V>> g) {
4088	+	return (x) -> f.apply(x).thenCompose(g);
4089	+	}
4090	+
4091	+	static void assertZero(CompletableFuture<?> f) {
4092	+	try {
4093	+	f.getNow(null);
4094	+	throw new AssertionFailedError("should throw");
4095	+	} catch (CompletionException success) {
4096	+	assertTrue(success.getCause() instanceof ZeroException);
4097	+	}
4098	+	}
4099	+
4100	+	static <T> void assertFutureEquals(CompletableFuture<T> f,
4101	+	CompletableFuture<T> g) {
4102	+	T fval = null, gval = null;
4103	+	Throwable fex = null, gex = null;
4104	+
4105	+	try { fval = f.get(); }
4106	+	catch (ExecutionException ex) { fex = ex.getCause(); }
4107	+	catch (Throwable ex) { fex = ex; }
4108	+
4109	+	try { gval = g.get(); }
4110	+	catch (ExecutionException ex) { gex = ex.getCause(); }
4111	+	catch (Throwable ex) { gex = ex; }
4112	+
4113	+	if (fex != null || gex != null)
4114	+	assertSame(fex.getClass(), gex.getClass());
4115	+	else
4116	+	assertEquals(fval, gval);
4117	+	}
4118	+
4119	+	static class PlusFuture<T> extends CompletableFuture<T> {
4120	+	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4121	+	}
4122	+
4123	+	/** Implements "monadic plus". */
4124	+	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
4125	+	CompletableFuture<? extends T> g) {
4126	+	PlusFuture<T> plus = new PlusFuture<T>();
4127	+	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
4128	+	try {
4129	+	if (ex == null) {
4130	+	if (plus.complete(result))
4131	+	if (plus.firstFailure.get() != null)
4132	+	plus.firstFailure.set(null);
4133	+	}
4134	+	else if (plus.firstFailure.compareAndSet(null, ex)) {
4135	+	if (plus.isDone())
4136	+	plus.firstFailure.set(null);
4137	+	}
4138	+	else {
4139	+	// first failure has precedence
4140	+	Throwable first = plus.firstFailure.getAndSet(null);
4141	+
4142	+	// may fail with "Self-suppression not permitted"
4143	+	try { first.addSuppressed(ex); }
4144	+	catch (Exception ignored) {}
4145	+
4146	+	plus.completeExceptionally(first);
4147	+	}
4148	+	} catch (Throwable unexpected) {
4149	+	plus.completeExceptionally(unexpected);
4150	+	}
4151	+	};
4152	+	f.whenComplete(action);
4153	+	g.whenComplete(action);
4154	+	return plus;
4155	+	}
4156	+	}
4157	+
4158	+	/**
4159	+	* CompletableFuture is an additive monad - sort of.
4160	+	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
4161	+	*/
4162	+	public void testAdditiveMonad() throws Throwable {
4163	+	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
4164	+	CompletableFuture<Long> zero = Monad.zero();
4165	+
4166	+	// Some mutually non-commutative functions
4167	+	Function<Long, CompletableFuture<Long>> triple
4168	+	= (x) -> Monad.unit(3 * x);
4169	+	Function<Long, CompletableFuture<Long>> inc
4170	+	= (x) -> Monad.unit(x + 1);
4171	+
4172	+	// unit is a right identity: m >>= unit === m
4173	+	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
4174	+	inc.apply(5L));
4175	+	// unit is a left identity: (unit x) >>= f === f x
4176	+	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
4177	+	inc.apply(5L));
4178	+
4179	+	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4180	+	Monad.assertFutureEquals(
4181	+	unit.apply(5L).thenCompose(inc).thenCompose(triple),
4182	+	unit.apply(5L).thenCompose((x) -> inc.apply(x).thenCompose(triple)));
4183	+
4184	+	// The case for CompletableFuture as an additive monad is weaker...
4185	+
4186	+	// zero is a monadic zero
4187	+	Monad.assertZero(zero);
4188	+
4189	+	// left zero: zero >>= f === zero
4190	+	Monad.assertZero(zero.thenCompose(inc));
4191	+	// right zero: f >>= (\x -> zero) === zero
4192	+	Monad.assertZero(inc.apply(5L).thenCompose((x) -> zero));
4193	+
4194	+	// f plus zero === f
4195	+	Monad.assertFutureEquals(Monad.unit(5L),
4196	+	Monad.plus(Monad.unit(5L), zero));
4197	+	// zero plus f === f
4198	+	Monad.assertFutureEquals(Monad.unit(5L),
4199	+	Monad.plus(zero, Monad.unit(5L)));
4200	+	// zero plus zero === zero
4201	+	Monad.assertZero(Monad.plus(zero, zero));
4202	+	{
4203	+	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
4204	+	Monad.unit(8L));
4205	+	// non-determinism
4206	+	assertTrue(f.get() == 5L || f.get() == 8L);
4207	+	}
4208	+
4209	+	CompletableFuture<Long> godot = new CompletableFuture<>();
4210	+	// f plus godot === f (doesn't wait for godot)
4211	+	Monad.assertFutureEquals(Monad.unit(5L),
4212	+	Monad.plus(Monad.unit(5L), godot));
4213	+	// godot plus f === f (doesn't wait for godot)
4214	+	Monad.assertFutureEquals(Monad.unit(5L),
4215	+	Monad.plus(godot, Monad.unit(5L)));
4216	+	}
4217	+
4218	+	/** Test long recursive chains of CompletableFutures with cascading completions */
4219	+	public void testRecursiveChains() throws Throwable {
4220	+	for (ExecutionMode m : ExecutionMode.values())
4221	+	for (boolean addDeadEnds : new boolean[] { true, false })
4222	+	{
4223	+	final int val = 42;
4224	+	final int n = expensiveTests ? 1_000 : 2;
4225	+	CompletableFuture<Integer> head = new CompletableFuture<>();
4226	+	CompletableFuture<Integer> tail = head;
4227	+	for (int i = 0; i < n; i++) {
4228	+	if (addDeadEnds) m.thenApply(tail, v -> v + 1);
4229	+	tail = m.thenApply(tail, v -> v + 1);
4230	+	if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1);
4231	+	tail = m.applyToEither(tail, tail, v -> v + 1);
4232	+	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1);
4233	+	tail = m.thenCombine(tail, tail, (v, w) -> v + 1);
4234	+	}
4235	+	head.complete(val);
4236	+	assertEquals(val + 3 * n, (int) tail.join());
4237	+	}}
4238	+
4239	+	/**
4240	+	* A single CompletableFuture with many dependents.
4241	+	* A demo of scalability - runtime is O(n).
4242	+	*/
4243	+	public void testManyDependents() throws Throwable {
4244	+	final int n = expensiveTests ? 1_000_000 : 10;
4245	+	final CompletableFuture<Void> head = new CompletableFuture<>();
4246	+	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4247	+	final AtomicInteger count = new AtomicInteger(0);
4248	+	for (int i = 0; i < n; i++) {
4249	+	head.thenRun(() -> count.getAndIncrement());
4250	+	head.thenAccept((x) -> count.getAndIncrement());
4251	+	head.thenApply((x) -> count.getAndIncrement());
4252	+
4253	+	head.runAfterBoth(complete, () -> count.getAndIncrement());
4254	+	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
4255	+	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
4256	+	complete.runAfterBoth(head, () -> count.getAndIncrement());
4257	+	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
4258	+	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4259	+
4260	+	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4261	+	head.acceptEither(new CompletableFuture<Void>(), (x) -> count.getAndIncrement());
4262	+	head.applyToEither(new CompletableFuture<Void>(), (x) -> count.getAndIncrement());
4263	+	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4264	+	new CompletableFuture<Void>().acceptEither(head, (x) -> count.getAndIncrement());
4265	+	new CompletableFuture<Void>().applyToEither(head, (x) -> count.getAndIncrement());
4266	+	}
4267	+	head.complete(null);
4268	+	assertEquals(5 * 3 * n, count.get());
4269	+	}
4270	+
4271	+	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4272	+	public void testCoCompletionGarbageRetention() throws Throwable {
4273	+	final int n = expensiveTests ? 1_000_000 : 10;
4274	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4275	+	CompletableFuture<Integer> f;
4276	+	for (int i = 0; i < n; i++) {
4277	+	f = new CompletableFuture<>();
4278	+	f.runAfterEither(incomplete, () -> {});
4279	+	f.complete(null);
4280	+
4281	+	f = new CompletableFuture<>();
4282	+	f.acceptEither(incomplete, (x) -> {});
4283	+	f.complete(null);
4284	+
4285	+	f = new CompletableFuture<>();
4286	+	f.applyToEither(incomplete, (x) -> x);
4287	+	f.complete(null);
4288	+
4289	+	f = new CompletableFuture<>();
4290	+	CompletableFuture.anyOf(new CompletableFuture<?>[] { f, incomplete });
4291	+	f.complete(null);
4292	+	}
4293	+
4294	+	for (int i = 0; i < n; i++) {
4295	+	f = new CompletableFuture<>();
4296	+	incomplete.runAfterEither(f, () -> {});
4297	+	f.complete(null);
4298	+
4299	+	f = new CompletableFuture<>();
4300	+	incomplete.acceptEither(f, (x) -> {});
4301	+	f.complete(null);
4302	+
4303	+	f = new CompletableFuture<>();
4304	+	incomplete.applyToEither(f, (x) -> x);
4305	+	f.complete(null);
4306	+
4307	+	f = new CompletableFuture<>();
4308	+	CompletableFuture.anyOf(new CompletableFuture<?>[] { incomplete, f });
4309	+	f.complete(null);
4310	+	}
4311	+	}
4312	+
4313	+	/**
4314	+	* Reproduction recipe for:
4315	+	* 8160402: Garbage retention with CompletableFuture.anyOf
4316	+	* 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
4317	+	*/
4318	+	public void testAnyOfGarbageRetention() throws Throwable {
4319	+	for (Integer v : new Integer[] { 1, null })
4320	+	{
4321	+	final int n = expensiveTests ? 100_000 : 10;
4322	+	CompletableFuture<Integer>[] fs
4323	+	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4324	+	for (int i = 0; i < fs.length; i++)
4325	+	fs[i] = new CompletableFuture<>();
4326	+	fs[fs.length - 1].complete(v);
4327	+	for (int i = 0; i < n; i++)
4328	+	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4329	+	}}
4330	+
4331	+	/**
4332	+	* Checks for garbage retention with allOf.
4333	+	*
4334	+	* As of 2016-07, fails with OOME:
4335	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4336	+	*/
4337	+	public void testCancelledAllOfGarbageRetention() throws Throwable {
4338	+	final int n = expensiveTests ? 100_000 : 10;
4339	+	CompletableFuture<Integer>[] fs
4340	+	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4341	+	for (int i = 0; i < fs.length; i++)
4342	+	fs[i] = new CompletableFuture<>();
4343	+	for (int i = 0; i < n; i++)
4344	+	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4345	+	}
4346	+
4347	+	/**
4348	+	* Checks for garbage retention when a dependent future is
4349	+	* cancelled and garbage-collected.
4350	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4351	+	*
4352	+	* As of 2016-07, fails with OOME:
4353	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4354	+	*/
4355	+	public void testCancelledGarbageRetention() throws Throwable {
4356	+	final int n = expensiveTests ? 100_000 : 10;
4357	+	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4358	+	for (int i = 0; i < n; i++)
4359	+	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4360	+	}
4361	+
4362	+	//     static <U> U join(CompletionStage<U> stage) {
4363	+	//         CompletableFuture<U> f = new CompletableFuture<>();
4364	+	//         stage.whenComplete((v, ex) -> {
4365	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4366	+	//         });
4367	+	//         return f.join();
4368	+	//     }
4369	+
4370	+	//     static <U> boolean isDone(CompletionStage<U> stage) {
4371	+	//         CompletableFuture<U> f = new CompletableFuture<>();
4372	+	//         stage.whenComplete((v, ex) -> {
4373	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4374	+	//         });
4375	+	//         return f.isDone();
4376	+	//     }
4377	+
4378	+	//     static <U> U join2(CompletionStage<U> stage) {
4379	+	//         return stage.toCompletableFuture().copy().join();
4380	+	//     }
4381	+
4382	+	//     static <U> boolean isDone2(CompletionStage<U> stage) {
4383	+	//         return stage.toCompletableFuture().copy().isDone();
4384	+	//     }
4385	+
4386		}

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