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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 1.195 by jsr166, Sun Jul 22 20:09:31 2018 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.Test;
45	+	import junit.framework.TestSuite;
46
47		public class CompletableFutureTest extends JSR166TestCase {
48
49		public static void main(String[] args) {
50	<	junit.textui.TestRunner.run(suite());
50	>	main(suite(), args);
51		}
52		public static Test suite() {
53		return new TestSuite(CompletableFutureTest.class);
#	Line 44 | Line 58 | public class CompletableFutureTest exten
58		void checkIncomplete(CompletableFuture<?> f) {
59		assertFalse(f.isDone());
60		assertFalse(f.isCancelled());
61	<	assertTrue(f.toString().contains("[Not completed]"));
61	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
62	>
63	>	Object result = null;
64		try {
65	<	assertNull(f.getNow(null));
65	>	result = f.getNow(null);
66		} catch (Throwable fail) { threadUnexpectedException(fail); }
67	+	assertNull(result);
68	+
69		try {
70	<	f.get(0L, SECONDS);
70	>	f.get(randomExpiredTimeout(), randomTimeUnit());
71		shouldThrow();
72		}
73		catch (TimeoutException success) {}
#	Line 57 | Line 75 | public class CompletableFutureTest exten
75		}
76
77		<T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
78	<	try {
79	<	assertEquals(value, f.get(LONG_DELAY_MS, MILLISECONDS));
62	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
78	>	checkTimedGet(f, value);
79	>
80		try {
81		assertEquals(value, f.join());
65	–	} catch (Throwable fail) { threadUnexpectedException(fail); }
66	–	try {
82		assertEquals(value, f.getNow(null));
68	–	} catch (Throwable fail) { threadUnexpectedException(fail); }
69	–	try {
83		assertEquals(value, f.get());
84		} catch (Throwable fail) { threadUnexpectedException(fail); }
85		assertTrue(f.isDone());
86		assertFalse(f.isCancelled());
87		assertFalse(f.isCompletedExceptionally());
88	<	assertTrue(f.toString().contains("[Completed normally]"));
88	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
89		}
90
91	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
92	<	try {
93	<	f.get(LONG_DELAY_MS, MILLISECONDS);
94	<	shouldThrow();
95	<	} catch (ExecutionException success) {
96	<	assertTrue(success.getCause() instanceof CFException);
97	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
98	<	try {
86	<	f.join();
87	<	shouldThrow();
88	<	} catch (CompletionException success) {
89	<	assertTrue(success.getCause() instanceof CFException);
90	<	}
91	<	try {
92	<	f.getNow(null);
93	<	shouldThrow();
94	<	} catch (CompletionException success) {
95	<	assertTrue(success.getCause() instanceof CFException);
96	<	}
97	<	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]"));
91	>	/**
92	>	* Returns the "raw" internal exceptional completion of f,
93	>	* without any additional wrapping with CompletionException.
94	>	*/
95	>	Throwable exceptionalCompletion(CompletableFuture<?> f) {
96	>	// handle (and whenComplete and exceptionally) can distinguish
97	>	// between "direct" and "wrapped" exceptional completion
98	>	return f.handle((u, t) -> t).join();
99		}
100
101	<	<U> void checkCompletedExceptionallyWithRootCause(CompletableFuture<U> f,
102	<	Throwable ex) {
101	>	void checkCompletedExceptionally(CompletableFuture<?> f,
102	>	boolean wrapped,
103	>	Consumer<Throwable> checker) {
104	>	Throwable cause = exceptionalCompletion(f);
105	>	if (wrapped) {
106	>	assertTrue(cause instanceof CompletionException);
107	>	cause = cause.getCause();
108	>	}
109	>	checker.accept(cause);
110	>
111	>	long startTime = System.nanoTime();
112		try {
113		f.get(LONG_DELAY_MS, MILLISECONDS);
114		shouldThrow();
115		} catch (ExecutionException success) {
116	<	assertSame(ex, success.getCause());
116	>	assertSame(cause, success.getCause());
117		} catch (Throwable fail) { threadUnexpectedException(fail); }
118	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
119	+
120		try {
121		f.join();
122		shouldThrow();
123		} catch (CompletionException success) {
124	<	assertSame(ex, success.getCause());
125	<	}
124	>	assertSame(cause, success.getCause());
125	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
126	>
127		try {
128		f.getNow(null);
129		shouldThrow();
130		} catch (CompletionException success) {
131	<	assertSame(ex, success.getCause());
132	<	}
131	>	assertSame(cause, success.getCause());
132	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
133	>
134		try {
135		f.get();
136		shouldThrow();
137		} catch (ExecutionException success) {
138	<	assertSame(ex, success.getCause());
138	>	assertSame(cause, success.getCause());
139		} catch (Throwable fail) { threadUnexpectedException(fail); }
140
135	–	assertTrue(f.isDone());
141		assertFalse(f.isCancelled());
142	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
142	>	assertTrue(f.isDone());
143	>	assertTrue(f.isCompletedExceptionally());
144	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
145		}
146
147	<	<U> void checkCompletedWithWrappedException(CompletableFuture<U> f,
148	<	Throwable ex) {
149	<	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); }
147	>	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
148	>	checkCompletedExceptionally(f, true,
149	>	t -> assertTrue(t instanceof CFException));
150		}
151
152	<	<U> void checkCompletedExceptionally(CompletableFuture<U> f, Throwable ex) {
153	<	checkCompletedExceptionallyWithRootCause(f, ex);
154	<	try {
155	<	CompletableFuture<Throwable> spy = f.handle
156	<	((U u, Throwable t) -> t);
157	<	assertSame(ex, spy.join());
158	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
152	>	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
153	>	checkCompletedExceptionally(f, true,
154	>	t -> assertTrue(t instanceof CancellationException));
155	>	}
156	>
157	>	void checkCompletedWithTimeoutException(CompletableFuture<?> f) {
158	>	checkCompletedExceptionally(f, false,
159	>	t -> assertTrue(t instanceof TimeoutException));
160	>	}
161	>
162	>	void checkCompletedWithWrappedException(CompletableFuture<?> f,
163	>	Throwable ex) {
164	>	checkCompletedExceptionally(f, true, t -> assertSame(t, ex));
165	>	}
166	>
167	>	void checkCompletedExceptionally(CompletableFuture<?> f, Throwable ex) {
168	>	checkCompletedExceptionally(f, false, t -> assertSame(t, ex));
169		}
170
171		void checkCancelled(CompletableFuture<?> f) {
172	+	long startTime = System.nanoTime();
173		try {
174		f.get(LONG_DELAY_MS, MILLISECONDS);
175		shouldThrow();
176		} catch (CancellationException success) {
177		} catch (Throwable fail) { threadUnexpectedException(fail); }
178	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
179	+
180		try {
181		f.join();
182		shouldThrow();
#	Line 176 | Line 190 | public class CompletableFutureTest exten
190		shouldThrow();
191		} catch (CancellationException success) {
192		} 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	–	}
193
194	<	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
195	<	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); }
194	>	assertTrue(exceptionalCompletion(f) instanceof CancellationException);
195	>
196		assertTrue(f.isDone());
211	–	assertFalse(f.isCancelled());
197		assertTrue(f.isCompletedExceptionally());
198	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
198	>	assertTrue(f.isCancelled());
199	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
200		}
201
202		/**
#	Line 257 | Line 243 | public class CompletableFutureTest exten
243		{
244		CompletableFuture<Integer> f = new CompletableFuture<>();
245		checkIncomplete(f);
246	<	assertTrue(f.cancel(true));
247	<	assertTrue(f.cancel(true));
246	>	assertTrue(f.cancel(mayInterruptIfRunning));
247	>	assertTrue(f.cancel(mayInterruptIfRunning));
248	>	assertTrue(f.cancel(!mayInterruptIfRunning));
249		checkCancelled(f);
250		}}
251
#	Line 308 | Line 295 | public class CompletableFutureTest exten
295		}
296
297		f = new CompletableFuture<>();
298	<	f.completeExceptionally(ex = new CFException());
298	>	f.completeExceptionally(new CFException());
299		f.obtrudeValue(v1);
300		checkCompletedNormally(f, v1);
301		f.obtrudeException(ex = new CFException());
#	Line 345 | Line 332 | public class CompletableFutureTest exten
332		/**
333		* toString indicates current completion state
334		*/
335	<	public void testToString() {
336	<	CompletableFuture<String> f;
337	<
338	<	f = new CompletableFuture<String>();
339	<	assertTrue(f.toString().contains("[Not completed]"));
335	>	public void testToString_incomplete() {
336	>	CompletableFuture<String> f = new CompletableFuture<>();
337	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
338	>	if (testImplementationDetails)
339	>	assertEquals(identityString(f) + "[Not completed]",
340	>	f.toString());
341	>	}
342
343	+	public void testToString_normal() {
344	+	CompletableFuture<String> f = new CompletableFuture<>();
345		assertTrue(f.complete("foo"));
346	<	assertTrue(f.toString().contains("[Completed normally]"));
346	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
347	>	if (testImplementationDetails)
348	>	assertEquals(identityString(f) + "[Completed normally]",
349	>	f.toString());
350	>	}
351
352	<	f = new CompletableFuture<String>();
352	>	public void testToString_exception() {
353	>	CompletableFuture<String> f = new CompletableFuture<>();
354		assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
355	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
355	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
356	>	if (testImplementationDetails)
357	>	assertTrue(f.toString().startsWith(
358	>	identityString(f) + "[Completed exceptionally: "));
359	>	}
360
361	+	public void testToString_cancelled() {
362		for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
363	<	f = new CompletableFuture<String>();
363	>	CompletableFuture<String> f = new CompletableFuture<>();
364		assertTrue(f.cancel(mayInterruptIfRunning));
365	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
365	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
366	>	if (testImplementationDetails)
367	>	assertTrue(f.toString().startsWith(
368	>	identityString(f) + "[Completed exceptionally: "));
369		}
370		}
371
#	Line 373 | Line 377 | public class CompletableFutureTest exten
377		checkCompletedNormally(f, "test");
378		}
379
380	<	abstract class CheckedAction {
380	>	abstract static class CheckedAction {
381		int invocationCount = 0;
382		final ExecutionMode m;
383		CheckedAction(ExecutionMode m) { this.m = m; }
#	Line 385 | Line 389 | public class CompletableFutureTest exten
389		void assertInvoked() { assertEquals(1, invocationCount); }
390		}
391
392	<	abstract class CheckedIntegerAction extends CheckedAction {
392	>	abstract static class CheckedIntegerAction extends CheckedAction {
393		Integer value;
394		CheckedIntegerAction(ExecutionMode m) { super(m); }
395		void assertValue(Integer expected) {
#	Line 394 | Line 398 | public class CompletableFutureTest exten
398		}
399		}
400
401	<	class IntegerSupplier extends CheckedAction
401	>	static class IntegerSupplier extends CheckedAction
402		implements Supplier<Integer>
403		{
404		final Integer value;
#	Line 413 | Line 417 | public class CompletableFutureTest exten
417		return (x == null) ? null : x + 1;
418		}
419
420	<	class NoopConsumer extends CheckedIntegerAction
420	>	static class NoopConsumer extends CheckedIntegerAction
421		implements Consumer<Integer>
422		{
423		NoopConsumer(ExecutionMode m) { super(m); }
#	Line 423 | Line 427 | public class CompletableFutureTest exten
427		}
428		}
429
430	<	class IncFunction extends CheckedIntegerAction
430	>	static class IncFunction extends CheckedIntegerAction
431		implements Function<Integer,Integer>
432		{
433		IncFunction(ExecutionMode m) { super(m); }
#	Line 441 | Line 445 | public class CompletableFutureTest exten
445		- ((y == null) ? 99 : y.intValue());
446		}
447
448	<	class SubtractAction extends CheckedIntegerAction
448	>	static class SubtractAction extends CheckedIntegerAction
449		implements BiConsumer<Integer, Integer>
450		{
451		SubtractAction(ExecutionMode m) { super(m); }
#	Line 451 | Line 455 | public class CompletableFutureTest exten
455		}
456		}
457
458	<	class SubtractFunction extends CheckedIntegerAction
458	>	static class SubtractFunction extends CheckedIntegerAction
459		implements BiFunction<Integer, Integer, Integer>
460		{
461		SubtractFunction(ExecutionMode m) { super(m); }
#	Line 461 | Line 465 | public class CompletableFutureTest exten
465		}
466		}
467
468	<	class Noop extends CheckedAction implements Runnable {
468	>	static class Noop extends CheckedAction implements Runnable {
469		Noop(ExecutionMode m) { super(m); }
470		public void run() {
471		invoked();
472		}
473		}
474
475	<	class FailingSupplier extends CheckedAction
475	>	static class FailingSupplier extends CheckedAction
476		implements Supplier<Integer>
477		{
478	<	FailingSupplier(ExecutionMode m) { super(m); }
478	>	final CFException ex;
479	>	FailingSupplier(ExecutionMode m) { super(m); ex = new CFException(); }
480		public Integer get() {
481		invoked();
482	<	throw new CFException();
482	>	throw ex;
483		}
484		}
485
486	<	class FailingConsumer extends CheckedIntegerAction
486	>	static class FailingConsumer extends CheckedIntegerAction
487		implements Consumer<Integer>
488		{
489	<	FailingConsumer(ExecutionMode m) { super(m); }
489	>	final CFException ex;
490	>	FailingConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
491		public void accept(Integer x) {
492		invoked();
493		value = x;
494	<	throw new CFException();
494	>	throw ex;
495		}
496		}
497
498	<	class FailingBiConsumer extends CheckedIntegerAction
498	>	static class FailingBiConsumer extends CheckedIntegerAction
499		implements BiConsumer<Integer, Integer>
500		{
501	<	FailingBiConsumer(ExecutionMode m) { super(m); }
501	>	final CFException ex;
502	>	FailingBiConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
503		public void accept(Integer x, Integer y) {
504		invoked();
505		value = subtract(x, y);
506	<	throw new CFException();
506	>	throw ex;
507		}
508		}
509
510	<	class FailingFunction extends CheckedIntegerAction
510	>	static class FailingFunction extends CheckedIntegerAction
511		implements Function<Integer, Integer>
512		{
513	<	FailingFunction(ExecutionMode m) { super(m); }
513	>	final CFException ex;
514	>	FailingFunction(ExecutionMode m) { super(m); ex = new CFException(); }
515		public Integer apply(Integer x) {
516		invoked();
517		value = x;
518	<	throw new CFException();
518	>	throw ex;
519		}
520		}
521
522	<	class FailingBiFunction extends CheckedIntegerAction
522	>	static class FailingBiFunction extends CheckedIntegerAction
523		implements BiFunction<Integer, Integer, Integer>
524		{
525	<	FailingBiFunction(ExecutionMode m) { super(m); }
525	>	final CFException ex;
526	>	FailingBiFunction(ExecutionMode m) { super(m); ex = new CFException(); }
527		public Integer apply(Integer x, Integer y) {
528		invoked();
529		value = subtract(x, y);
530	<	throw new CFException();
530	>	throw ex;
531		}
532		}
533
534	<	class FailingRunnable extends CheckedAction implements Runnable {
535	<	FailingRunnable(ExecutionMode m) { super(m); }
534	>	static class FailingRunnable extends CheckedAction implements Runnable {
535	>	final CFException ex;
536	>	FailingRunnable(ExecutionMode m) { super(m); ex = new CFException(); }
537		public void run() {
538		invoked();
539	<	throw new CFException();
539	>	throw ex;
540		}
541		}
542
543	<
534	<	class CompletableFutureInc extends CheckedIntegerAction
543	>	static class CompletableFutureInc extends CheckedIntegerAction
544		implements Function<Integer, CompletableFuture<Integer>>
545		{
546		CompletableFutureInc(ExecutionMode m) { super(m); }
#	Line 544 | Line 553 | public class CompletableFutureTest exten
553		}
554		}
555
556	<	class FailingCompletableFutureFunction extends CheckedIntegerAction
556	>	static class FailingCompletableFutureFunction extends CheckedIntegerAction
557		implements Function<Integer, CompletableFuture<Integer>>
558		{
559	<	FailingCompletableFutureFunction(ExecutionMode m) { super(m); }
559	>	final CFException ex;
560	>	FailingCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
561		public CompletableFuture<Integer> apply(Integer x) {
562		invoked();
563		value = x;
564	<	throw new CFException();
564	>	throw ex;
565	>	}
566	>	}
567	>
568	>	static class CountingRejectingExecutor implements Executor {
569	>	final RejectedExecutionException ex = new RejectedExecutionException();
570	>	final AtomicInteger count = new AtomicInteger(0);
571	>	public void execute(Runnable r) {
572	>	count.getAndIncrement();
573	>	throw ex;
574		}
575		}
576
#	Line 569 | Line 588 | public class CompletableFutureTest exten
588		}
589		}
590
591	+	static final boolean defaultExecutorIsCommonPool
592	+	= ForkJoinPool.getCommonPoolParallelism() > 1;
593	+
594		/**
595		* Permits the testing of parallel code for the 3 different
596		* execution modes without copy/pasting all the test methods.
597		*/
598		enum ExecutionMode {
599	<	DEFAULT {
599	>	SYNC {
600		public void checkExecutionMode() {
601		assertFalse(ThreadExecutor.startedCurrentThread());
602		assertNull(ForkJoinTask.getPool());
#	Line 650 | Line 672 | public class CompletableFutureTest exten
672
673		ASYNC {
674		public void checkExecutionMode() {
675	<	assertSame(ForkJoinPool.commonPool(),
676	<	ForkJoinTask.getPool());
675	>	assertEquals(defaultExecutorIsCommonPool,
676	>	(ForkJoinPool.commonPool() == ForkJoinTask.getPool()));
677		}
678		public CompletableFuture<Void> runAsync(Runnable a) {
679		return CompletableFuture.runAsync(a);
#	Line 850 | Line 872 | public class CompletableFutureTest exten
872		if (!createIncomplete) assertTrue(f.complete(v1));
873		final CompletableFuture<Integer> g = f.exceptionally
874		((Throwable t) -> {
853	–	// Should not be called
875		a.getAndIncrement();
876	<	throw new AssertionError();
876	>	threadFail("should not be called");
877	>	return null;            // unreached
878		});
879		if (createIncomplete) assertTrue(f.complete(v1));
880
#	Line 875 | Line 897 | public class CompletableFutureTest exten
897		if (!createIncomplete) f.completeExceptionally(ex);
898		final CompletableFuture<Integer> g = f.exceptionally
899		((Throwable t) -> {
900	<	ExecutionMode.DEFAULT.checkExecutionMode();
900	>	ExecutionMode.SYNC.checkExecutionMode();
901		threadAssertSame(t, ex);
902		a.getAndIncrement();
903		return v1;
#	Line 886 | Line 908 | public class CompletableFutureTest exten
908		assertEquals(1, a.get());
909		}}
910
911	+	/**
912	+	* If an "exceptionally action" throws an exception, it completes
913	+	* exceptionally with that exception
914	+	*/
915		public void testExceptionally_exceptionalCompletionActionFailed() {
916		for (boolean createIncomplete : new boolean[] { true, false })
891	–	for (Integer v1 : new Integer[] { 1, null })
917		{
918		final AtomicInteger a = new AtomicInteger(0);
919		final CFException ex1 = new CFException();
#	Line 897 | Line 922 | public class CompletableFutureTest exten
922		if (!createIncomplete) f.completeExceptionally(ex1);
923		final CompletableFuture<Integer> g = f.exceptionally
924		((Throwable t) -> {
925	<	ExecutionMode.DEFAULT.checkExecutionMode();
925	>	ExecutionMode.SYNC.checkExecutionMode();
926		threadAssertSame(t, ex1);
927		a.getAndIncrement();
928		throw ex2;
#	Line 905 | Line 930 | public class CompletableFutureTest exten
930		if (createIncomplete) f.completeExceptionally(ex1);
931
932		checkCompletedWithWrappedException(g, ex2);
933	+	checkCompletedExceptionally(f, ex1);
934		assertEquals(1, a.get());
935		}}
936
#	Line 912 | Line 938 | public class CompletableFutureTest exten
938		* whenComplete action executes on normal completion, propagating
939		* source result.
940		*/
941	<	public void testWhenComplete_normalCompletion1() {
941	>	public void testWhenComplete_normalCompletion() {
942		for (ExecutionMode m : ExecutionMode.values())
943		for (boolean createIncomplete : new boolean[] { true, false })
944		for (Integer v1 : new Integer[] { 1, null })
#	Line 922 | Line 948 | public class CompletableFutureTest exten
948		if (!createIncomplete) assertTrue(f.complete(v1));
949		final CompletableFuture<Integer> g = m.whenComplete
950		(f,
951	<	(Integer x, Throwable t) -> {
951	>	(Integer result, Throwable t) -> {
952		m.checkExecutionMode();
953	<	threadAssertSame(x, v1);
953	>	threadAssertSame(result, v1);
954		threadAssertNull(t);
955		a.getAndIncrement();
956		});
#	Line 942 | Line 968 | public class CompletableFutureTest exten
968		public void testWhenComplete_exceptionalCompletion() {
969		for (ExecutionMode m : ExecutionMode.values())
970		for (boolean createIncomplete : new boolean[] { true, false })
945	–	for (Integer v1 : new Integer[] { 1, null })
971		{
972		final AtomicInteger a = new AtomicInteger(0);
973		final CFException ex = new CFException();
#	Line 950 | Line 975 | public class CompletableFutureTest exten
975		if (!createIncomplete) f.completeExceptionally(ex);
976		final CompletableFuture<Integer> g = m.whenComplete
977		(f,
978	<	(Integer x, Throwable t) -> {
978	>	(Integer result, Throwable t) -> {
979		m.checkExecutionMode();
980	<	threadAssertNull(x);
980	>	threadAssertNull(result);
981		threadAssertSame(t, ex);
982		a.getAndIncrement();
983		});
#	Line 977 | Line 1002 | public class CompletableFutureTest exten
1002		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1003		final CompletableFuture<Integer> g = m.whenComplete
1004		(f,
1005	<	(Integer x, Throwable t) -> {
1005	>	(Integer result, Throwable t) -> {
1006		m.checkExecutionMode();
1007	<	threadAssertNull(x);
1007	>	threadAssertNull(result);
1008		threadAssertTrue(t instanceof CancellationException);
1009		a.getAndIncrement();
1010		});
#	Line 994 | Line 1019 | public class CompletableFutureTest exten
1019		* If a whenComplete action throws an exception when triggered by
1020		* a normal completion, it completes exceptionally
1021		*/
1022	<	public void testWhenComplete_actionFailed() {
1022	>	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
1023		for (boolean createIncomplete : new boolean[] { true, false })
1024		for (ExecutionMode m : ExecutionMode.values())
1025		for (Integer v1 : new Integer[] { 1, null })
#	Line 1005 | Line 1030 | public class CompletableFutureTest exten
1030		if (!createIncomplete) assertTrue(f.complete(v1));
1031		final CompletableFuture<Integer> g = m.whenComplete
1032		(f,
1033	<	(Integer x, Throwable t) -> {
1033	>	(Integer result, Throwable t) -> {
1034		m.checkExecutionMode();
1035	<	threadAssertSame(x, v1);
1035	>	threadAssertSame(result, v1);
1036		threadAssertNull(t);
1037		a.getAndIncrement();
1038		throw ex;
#	Line 1022 | Line 1047 | public class CompletableFutureTest exten
1047		/**
1048		* If a whenComplete action throws an exception when triggered by
1049		* a source completion that also throws an exception, the source
1050	<	* exception takes precedence.
1050	>	* exception takes precedence (unlike handle)
1051		*/
1052	<	public void testWhenComplete_actionFailedSourceFailed() {
1052	>	public void testWhenComplete_sourceFailedActionFailed() {
1053		for (boolean createIncomplete : new boolean[] { true, false })
1054		for (ExecutionMode m : ExecutionMode.values())
1030	–	for (Integer v1 : new Integer[] { 1, null })
1055		{
1056		final AtomicInteger a = new AtomicInteger(0);
1057		final CFException ex1 = new CFException();
#	Line 1037 | Line 1061 | public class CompletableFutureTest exten
1061		if (!createIncomplete) f.completeExceptionally(ex1);
1062		final CompletableFuture<Integer> g = m.whenComplete
1063		(f,
1064	<	(Integer x, Throwable t) -> {
1064	>	(Integer result, Throwable t) -> {
1065		m.checkExecutionMode();
1066		threadAssertSame(t, ex1);
1067	<	threadAssertNull(x);
1067	>	threadAssertNull(result);
1068		a.getAndIncrement();
1069		throw ex2;
1070		});
#	Line 1048 | Line 1072 | public class CompletableFutureTest exten
1072
1073		checkCompletedWithWrappedException(g, ex1);
1074		checkCompletedExceptionally(f, ex1);
1075	+	if (testImplementationDetails) {
1076	+	assertEquals(1, ex1.getSuppressed().length);
1077	+	assertSame(ex2, ex1.getSuppressed()[0]);
1078	+	}
1079		assertEquals(1, a.get());
1080		}}
1081
#	Line 1065 | Line 1093 | public class CompletableFutureTest exten
1093		if (!createIncomplete) assertTrue(f.complete(v1));
1094		final CompletableFuture<Integer> g = m.handle
1095		(f,
1096	<	(Integer x, Throwable t) -> {
1096	>	(Integer result, Throwable t) -> {
1097		m.checkExecutionMode();
1098	<	threadAssertSame(x, v1);
1098	>	threadAssertSame(result, v1);
1099		threadAssertNull(t);
1100		a.getAndIncrement();
1101		return inc(v1);
#	Line 1094 | Line 1122 | public class CompletableFutureTest exten
1122		if (!createIncomplete) f.completeExceptionally(ex);
1123		final CompletableFuture<Integer> g = m.handle
1124		(f,
1125	<	(Integer x, Throwable t) -> {
1125	>	(Integer result, Throwable t) -> {
1126		m.checkExecutionMode();
1127	<	threadAssertNull(x);
1127	>	threadAssertNull(result);
1128		threadAssertSame(t, ex);
1129		a.getAndIncrement();
1130		return v1;
#	Line 1123 | Line 1151 | public class CompletableFutureTest exten
1151		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1152		final CompletableFuture<Integer> g = m.handle
1153		(f,
1154	<	(Integer x, Throwable t) -> {
1154	>	(Integer result, Throwable t) -> {
1155		m.checkExecutionMode();
1156	<	threadAssertNull(x);
1156	>	threadAssertNull(result);
1157		threadAssertTrue(t instanceof CancellationException);
1158		a.getAndIncrement();
1159		return v1;
#	Line 1138 | Line 1166 | public class CompletableFutureTest exten
1166		}}
1167
1168		/**
1169	<	* handle result completes exceptionally if action does
1169	>	* If a "handle action" throws an exception when triggered by
1170	>	* a normal completion, it completes exceptionally
1171		*/
1172	<	public void testHandle_sourceFailedActionFailed() {
1172	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1173		for (ExecutionMode m : ExecutionMode.values())
1174		for (boolean createIncomplete : new boolean[] { true, false })
1175	+	for (Integer v1 : new Integer[] { 1, null })
1176		{
1177		final CompletableFuture<Integer> f = new CompletableFuture<>();
1178		final AtomicInteger a = new AtomicInteger(0);
1179	<	final CFException ex1 = new CFException();
1180	<	final CFException ex2 = new CFException();
1151	<	if (!createIncomplete) f.completeExceptionally(ex1);
1179	>	final CFException ex = new CFException();
1180	>	if (!createIncomplete) assertTrue(f.complete(v1));
1181		final CompletableFuture<Integer> g = m.handle
1182		(f,
1183	<	(Integer x, Throwable t) -> {
1183	>	(Integer result, Throwable t) -> {
1184		m.checkExecutionMode();
1185	<	threadAssertNull(x);
1186	<	threadAssertSame(ex1, t);
1185	>	threadAssertSame(result, v1);
1186	>	threadAssertNull(t);
1187		a.getAndIncrement();
1188	<	throw ex2;
1188	>	throw ex;
1189		});
1190	<	if (createIncomplete) f.completeExceptionally(ex1);
1190	>	if (createIncomplete) assertTrue(f.complete(v1));
1191
1192	<	checkCompletedWithWrappedException(g, ex2);
1193	<	checkCompletedExceptionally(f, ex1);
1192	>	checkCompletedWithWrappedException(g, ex);
1193	>	checkCompletedNormally(f, v1);
1194		assertEquals(1, a.get());
1195		}}
1196
1197	<	public void testHandle_sourceCompletedNormallyActionFailed() {
1198	<	for (ExecutionMode m : ExecutionMode.values())
1197	>	/**
1198	>	* If a "handle action" throws an exception when triggered by
1199	>	* a source completion that also throws an exception, the action
1200	>	* exception takes precedence (unlike whenComplete)
1201	>	*/
1202	>	public void testHandle_sourceFailedActionFailed() {
1203		for (boolean createIncomplete : new boolean[] { true, false })
1204	<	for (Integer v1 : new Integer[] { 1, null })
1204	>	for (ExecutionMode m : ExecutionMode.values())
1205		{
1173	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
1206		final AtomicInteger a = new AtomicInteger(0);
1207	<	final CFException ex = new CFException();
1208	<	if (!createIncomplete) assertTrue(f.complete(v1));
1207	>	final CFException ex1 = new CFException();
1208	>	final CFException ex2 = new CFException();
1209	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1210	>
1211	>	if (!createIncomplete) f.completeExceptionally(ex1);
1212		final CompletableFuture<Integer> g = m.handle
1213		(f,
1214	<	(Integer x, Throwable t) -> {
1214	>	(Integer result, Throwable t) -> {
1215		m.checkExecutionMode();
1216	<	threadAssertSame(x, v1);
1217	<	threadAssertNull(t);
1216	>	threadAssertNull(result);
1217	>	threadAssertSame(ex1, t);
1218		a.getAndIncrement();
1219	<	throw ex;
1219	>	throw ex2;
1220		});
1221	<	if (createIncomplete) assertTrue(f.complete(v1));
1221	>	if (createIncomplete) f.completeExceptionally(ex1);
1222
1223	<	checkCompletedWithWrappedException(g, ex);
1224	<	checkCompletedNormally(f, v1);
1223	>	checkCompletedWithWrappedException(g, ex2);
1224	>	checkCompletedExceptionally(f, ex1);
1225		assertEquals(1, a.get());
1226		}}
1227
#	Line 1219 | Line 1254 | public class CompletableFutureTest exten
1254		{
1255		final FailingRunnable r = new FailingRunnable(m);
1256		final CompletableFuture<Void> f = m.runAsync(r);
1257	<	checkCompletedWithWrappedCFException(f);
1257	>	checkCompletedWithWrappedException(f, r.ex);
1258		r.assertInvoked();
1259		}}
1260
1261	+	@SuppressWarnings("FutureReturnValueIgnored")
1262	+	public void testRunAsync_rejectingExecutor() {
1263	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1264	+	try {
1265	+	CompletableFuture.runAsync(() -> {}, e);
1266	+	shouldThrow();
1267	+	} catch (Throwable t) {
1268	+	assertSame(e.ex, t);
1269	+	}
1270	+
1271	+	assertEquals(1, e.count.get());
1272	+	}
1273	+
1274		/**
1275		* supplyAsync completes with result of supplier
1276		*/
#	Line 1253 | Line 1301 | public class CompletableFutureTest exten
1301		{
1302		FailingSupplier r = new FailingSupplier(m);
1303		CompletableFuture<Integer> f = m.supplyAsync(r);
1304	<	checkCompletedWithWrappedCFException(f);
1304	>	checkCompletedWithWrappedException(f, r.ex);
1305		r.assertInvoked();
1306		}}
1307
1308	+	@SuppressWarnings("FutureReturnValueIgnored")
1309	+	public void testSupplyAsync_rejectingExecutor() {
1310	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1311	+	try {
1312	+	CompletableFuture.supplyAsync(() -> null, e);
1313	+	shouldThrow();
1314	+	} catch (Throwable t) {
1315	+	assertSame(e.ex, t);
1316	+	}
1317	+
1318	+	assertEquals(1, e.count.get());
1319	+	}
1320	+
1321		// seq completion methods
1322
1323		/**
#	Line 1264 | Line 1325 | public class CompletableFutureTest exten
1325		*/
1326		public void testThenRun_normalCompletion() {
1327		for (ExecutionMode m : ExecutionMode.values())
1267	–	for (boolean createIncomplete : new boolean[] { true, false })
1328		for (Integer v1 : new Integer[] { 1, null })
1329		{
1330		final CompletableFuture<Integer> f = new CompletableFuture<>();
1331	<	final Noop r = new Noop(m);
1332	<	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	<	}
1331	>	final Noop[] rs = new Noop[6];
1332	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1333
1334	<	checkCompletedNormally(g, null);
1334	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1335	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1336	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1337	>	checkIncomplete(h0);
1338	>	checkIncomplete(h1);
1339	>	checkIncomplete(h2);
1340	>	assertTrue(f.complete(v1));
1341	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1342	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1343	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1344	>
1345	>	checkCompletedNormally(h0, null);
1346	>	checkCompletedNormally(h1, null);
1347	>	checkCompletedNormally(h2, null);
1348	>	checkCompletedNormally(h3, null);
1349	>	checkCompletedNormally(h4, null);
1350	>	checkCompletedNormally(h5, null);
1351		checkCompletedNormally(f, v1);
1352	<	r.assertInvoked();
1352	>	for (Noop r : rs) r.assertInvoked();
1353		}}
1354
1355		/**
#	Line 1287 | Line 1358 | public class CompletableFutureTest exten
1358		*/
1359		public void testThenRun_exceptionalCompletion() {
1360		for (ExecutionMode m : ExecutionMode.values())
1290	–	for (boolean createIncomplete : new boolean[] { true, false })
1361		{
1362		final CFException ex = new CFException();
1363		final CompletableFuture<Integer> f = new CompletableFuture<>();
1364	<	final Noop r = new Noop(m);
1365	<	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	<	}
1364	>	final Noop[] rs = new Noop[6];
1365	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1366
1367	<	checkCompletedWithWrappedException(g, ex);
1367	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1368	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1369	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1370	>	checkIncomplete(h0);
1371	>	checkIncomplete(h1);
1372	>	checkIncomplete(h2);
1373	>	assertTrue(f.completeExceptionally(ex));
1374	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1375	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1376	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1377	>
1378	>	checkCompletedWithWrappedException(h0, ex);
1379	>	checkCompletedWithWrappedException(h1, ex);
1380	>	checkCompletedWithWrappedException(h2, ex);
1381	>	checkCompletedWithWrappedException(h3, ex);
1382	>	checkCompletedWithWrappedException(h4, ex);
1383	>	checkCompletedWithWrappedException(h5, ex);
1384		checkCompletedExceptionally(f, ex);
1385	<	r.assertNotInvoked();
1385	>	for (Noop r : rs) r.assertNotInvoked();
1386		}}
1387
1388		/**
#	Line 1309 | Line 1390 | public class CompletableFutureTest exten
1390		*/
1391		public void testThenRun_sourceCancelled() {
1392		for (ExecutionMode m : ExecutionMode.values())
1312	–	for (boolean createIncomplete : new boolean[] { true, false })
1393		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1394		{
1395		final CompletableFuture<Integer> f = new CompletableFuture<>();
1396	<	final Noop r = new Noop(m);
1397	<	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	<	}
1396	>	final Noop[] rs = new Noop[6];
1397	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1398
1399	<	checkCompletedWithWrappedCancellationException(g);
1399	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1400	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1401	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1402	>	checkIncomplete(h0);
1403	>	checkIncomplete(h1);
1404	>	checkIncomplete(h2);
1405	>	assertTrue(f.cancel(mayInterruptIfRunning));
1406	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1407	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1408	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1409	>
1410	>	checkCompletedWithWrappedCancellationException(h0);
1411	>	checkCompletedWithWrappedCancellationException(h1);
1412	>	checkCompletedWithWrappedCancellationException(h2);
1413	>	checkCompletedWithWrappedCancellationException(h3);
1414	>	checkCompletedWithWrappedCancellationException(h4);
1415	>	checkCompletedWithWrappedCancellationException(h5);
1416		checkCancelled(f);
1417	<	r.assertNotInvoked();
1417	>	for (Noop r : rs) r.assertNotInvoked();
1418		}}
1419
1420		/**
#	Line 1331 | Line 1422 | public class CompletableFutureTest exten
1422		*/
1423		public void testThenRun_actionFailed() {
1424		for (ExecutionMode m : ExecutionMode.values())
1334	–	for (boolean createIncomplete : new boolean[] { true, false })
1425		for (Integer v1 : new Integer[] { 1, null })
1426		{
1427		final CompletableFuture<Integer> f = new CompletableFuture<>();
1428	<	final FailingRunnable r = new FailingRunnable(m);
1429	<	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	<	}
1428	>	final FailingRunnable[] rs = new FailingRunnable[6];
1429	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1430
1431	<	checkCompletedWithWrappedCFException(g);
1431	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1432	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1433	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1434	>	assertTrue(f.complete(v1));
1435	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1436	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1437	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1438	>
1439	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1440	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1441	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1442	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1443	>	checkCompletedWithWrappedException(h4, rs[4].ex);
1444	>	checkCompletedWithWrappedException(h5, rs[5].ex);
1445		checkCompletedNormally(f, v1);
1446		}}
1447
#	Line 1352 | Line 1450 | public class CompletableFutureTest exten
1450		*/
1451		public void testThenApply_normalCompletion() {
1452		for (ExecutionMode m : ExecutionMode.values())
1355	–	for (boolean createIncomplete : new boolean[] { true, false })
1453		for (Integer v1 : new Integer[] { 1, null })
1454		{
1455		final CompletableFuture<Integer> f = new CompletableFuture<>();
1456	<	final IncFunction r = new IncFunction(m);
1457	<	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	<	}
1456	>	final IncFunction[] rs = new IncFunction[4];
1457	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1458
1459	<	checkCompletedNormally(g, inc(v1));
1459	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1460	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1461	>	checkIncomplete(h0);
1462	>	checkIncomplete(h1);
1463	>	assertTrue(f.complete(v1));
1464	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1465	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1466	>
1467	>	checkCompletedNormally(h0, inc(v1));
1468	>	checkCompletedNormally(h1, inc(v1));
1469	>	checkCompletedNormally(h2, inc(v1));
1470	>	checkCompletedNormally(h3, inc(v1));
1471		checkCompletedNormally(f, v1);
1472	<	r.assertValue(inc(v1));
1472	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1473		}}
1474
1475		/**
#	Line 1375 | Line 1478 | public class CompletableFutureTest exten
1478		*/
1479		public void testThenApply_exceptionalCompletion() {
1480		for (ExecutionMode m : ExecutionMode.values())
1378	–	for (boolean createIncomplete : new boolean[] { true, false })
1481		{
1482		final CFException ex = new CFException();
1483		final CompletableFuture<Integer> f = new CompletableFuture<>();
1484	<	final IncFunction r = new IncFunction(m);
1485	<	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	<	}
1484	>	final IncFunction[] rs = new IncFunction[4];
1485	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1486
1487	<	checkCompletedWithWrappedException(g, ex);
1487	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1488	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1489	>	assertTrue(f.completeExceptionally(ex));
1490	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1491	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1492	>
1493	>	checkCompletedWithWrappedException(h0, ex);
1494	>	checkCompletedWithWrappedException(h1, ex);
1495	>	checkCompletedWithWrappedException(h2, ex);
1496	>	checkCompletedWithWrappedException(h3, ex);
1497		checkCompletedExceptionally(f, ex);
1498	<	r.assertNotInvoked();
1498	>	for (IncFunction r : rs) r.assertNotInvoked();
1499		}}
1500
1501		/**
#	Line 1397 | Line 1503 | public class CompletableFutureTest exten
1503		*/
1504		public void testThenApply_sourceCancelled() {
1505		for (ExecutionMode m : ExecutionMode.values())
1400	–	for (boolean createIncomplete : new boolean[] { true, false })
1506		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1507		{
1508		final CompletableFuture<Integer> f = new CompletableFuture<>();
1509	<	final IncFunction r = new IncFunction(m);
1510	<	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	<	}
1509	>	final IncFunction[] rs = new IncFunction[4];
1510	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1511
1512	<	checkCompletedWithWrappedCancellationException(g);
1512	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1513	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1514	>	assertTrue(f.cancel(mayInterruptIfRunning));
1515	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1516	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1517	>
1518	>	checkCompletedWithWrappedCancellationException(h0);
1519	>	checkCompletedWithWrappedCancellationException(h1);
1520	>	checkCompletedWithWrappedCancellationException(h2);
1521	>	checkCompletedWithWrappedCancellationException(h3);
1522		checkCancelled(f);
1523	<	r.assertNotInvoked();
1523	>	for (IncFunction r : rs) r.assertNotInvoked();
1524		}}
1525
1526		/**
#	Line 1419 | Line 1528 | public class CompletableFutureTest exten
1528		*/
1529		public void testThenApply_actionFailed() {
1530		for (ExecutionMode m : ExecutionMode.values())
1422	–	for (boolean createIncomplete : new boolean[] { true, false })
1531		for (Integer v1 : new Integer[] { 1, null })
1532		{
1533		final CompletableFuture<Integer> f = new CompletableFuture<>();
1534	<	final FailingFunction r = new FailingFunction(m);
1535	<	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	<	}
1534	>	final FailingFunction[] rs = new FailingFunction[4];
1535	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1536
1537	<	checkCompletedWithWrappedCFException(g);
1537	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1538	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1539	>	assertTrue(f.complete(v1));
1540	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1541	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1542	>
1543	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1544	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1545	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1546	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1547		checkCompletedNormally(f, v1);
1548		}}
1549
#	Line 1440 | Line 1552 | public class CompletableFutureTest exten
1552		*/
1553		public void testThenAccept_normalCompletion() {
1554		for (ExecutionMode m : ExecutionMode.values())
1443	–	for (boolean createIncomplete : new boolean[] { true, false })
1555		for (Integer v1 : new Integer[] { 1, null })
1556		{
1557		final CompletableFuture<Integer> f = new CompletableFuture<>();
1558	<	final NoopConsumer r = new NoopConsumer(m);
1559	<	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	<	}
1558	>	final NoopConsumer[] rs = new NoopConsumer[4];
1559	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1560
1561	<	checkCompletedNormally(g, null);
1562	<	r.assertValue(v1);
1561	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1562	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1563	>	checkIncomplete(h0);
1564	>	checkIncomplete(h1);
1565	>	assertTrue(f.complete(v1));
1566	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1567	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1568	>
1569	>	checkCompletedNormally(h0, null);
1570	>	checkCompletedNormally(h1, null);
1571	>	checkCompletedNormally(h2, null);
1572	>	checkCompletedNormally(h3, null);
1573		checkCompletedNormally(f, v1);
1574	+	for (NoopConsumer r : rs) r.assertValue(v1);
1575		}}
1576
1577		/**
#	Line 1463 | Line 1580 | public class CompletableFutureTest exten
1580		*/
1581		public void testThenAccept_exceptionalCompletion() {
1582		for (ExecutionMode m : ExecutionMode.values())
1466	–	for (boolean createIncomplete : new boolean[] { true, false })
1583		{
1584		final CFException ex = new CFException();
1585		final CompletableFuture<Integer> f = new CompletableFuture<>();
1586	<	final NoopConsumer r = new NoopConsumer(m);
1587	<	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	<	}
1586	>	final NoopConsumer[] rs = new NoopConsumer[4];
1587	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1588
1589	<	checkCompletedWithWrappedException(g, ex);
1589	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1590	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1591	>	assertTrue(f.completeExceptionally(ex));
1592	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1593	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1594	>
1595	>	checkCompletedWithWrappedException(h0, ex);
1596	>	checkCompletedWithWrappedException(h1, ex);
1597	>	checkCompletedWithWrappedException(h2, ex);
1598	>	checkCompletedWithWrappedException(h3, ex);
1599		checkCompletedExceptionally(f, ex);
1600	<	r.assertNotInvoked();
1600	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1601		}}
1602
1603		/**
#	Line 1485 | Line 1605 | public class CompletableFutureTest exten
1605		*/
1606		public void testThenAccept_sourceCancelled() {
1607		for (ExecutionMode m : ExecutionMode.values())
1488	–	for (boolean createIncomplete : new boolean[] { true, false })
1608		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1609		{
1610		final CompletableFuture<Integer> f = new CompletableFuture<>();
1611	<	final NoopConsumer r = new NoopConsumer(m);
1612	<	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	<	}
1611	>	final NoopConsumer[] rs = new NoopConsumer[4];
1612	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1613
1614	<	checkCompletedWithWrappedCancellationException(g);
1614	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1615	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1616	>	assertTrue(f.cancel(mayInterruptIfRunning));
1617	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1618	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1619	>
1620	>	checkCompletedWithWrappedCancellationException(h0);
1621	>	checkCompletedWithWrappedCancellationException(h1);
1622	>	checkCompletedWithWrappedCancellationException(h2);
1623	>	checkCompletedWithWrappedCancellationException(h3);
1624		checkCancelled(f);
1625	<	r.assertNotInvoked();
1625	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1626		}}
1627
1628		/**
#	Line 1507 | Line 1630 | public class CompletableFutureTest exten
1630		*/
1631		public void testThenAccept_actionFailed() {
1632		for (ExecutionMode m : ExecutionMode.values())
1510	–	for (boolean createIncomplete : new boolean[] { true, false })
1633		for (Integer v1 : new Integer[] { 1, null })
1634		{
1635		final CompletableFuture<Integer> f = new CompletableFuture<>();
1636	<	final FailingConsumer r = new FailingConsumer(m);
1637	<	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	<	}
1636	>	final FailingConsumer[] rs = new FailingConsumer[4];
1637	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1638
1639	<	checkCompletedWithWrappedCFException(g);
1639	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1640	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1641	>	assertTrue(f.complete(v1));
1642	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1643	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1644	>
1645	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1646	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1647	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1648	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1649		checkCompletedNormally(f, v1);
1650		}}
1651
#	Line 1535 | Line 1661 | public class CompletableFutureTest exten
1661		{
1662		final CompletableFuture<Integer> f = new CompletableFuture<>();
1663		final CompletableFuture<Integer> g = new CompletableFuture<>();
1664	<	final SubtractFunction r1 = new SubtractFunction(m);
1665	<	final SubtractFunction r2 = new SubtractFunction(m);
1540	<	final SubtractFunction r3 = new SubtractFunction(m);
1664	>	final SubtractFunction[] rs = new SubtractFunction[6];
1665	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1666
1667		final CompletableFuture<Integer> fst =  fFirst ? f : g;
1668		final CompletableFuture<Integer> snd = !fFirst ? f : g;
1669		final Integer w1 =  fFirst ? v1 : v2;
1670		final Integer w2 = !fFirst ? v1 : v2;
1671
1672	<	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1672	>	final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1673	>	final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1674		assertTrue(fst.complete(w1));
1675	<	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1676	<	checkIncomplete(h1);
1677	<	checkIncomplete(h2);
1678	<	r1.assertNotInvoked();
1679	<	r2.assertNotInvoked();
1675	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1676	>	final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1677	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1678	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1679	>	checkCompletedNormally(h1, subtract(w1, w1));
1680	>	checkCompletedNormally(h3, subtract(w1, w1));
1681	>	rs[1].assertValue(subtract(w1, w1));
1682	>	rs[3].assertValue(subtract(w1, w1));
1683		assertTrue(snd.complete(w2));
1684	<	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1684	>	final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1685
1686	<	checkCompletedNormally(h1, subtract(v1, v2));
1686	>	checkCompletedNormally(h0, subtract(v1, v2));
1687		checkCompletedNormally(h2, subtract(v1, v2));
1688	<	checkCompletedNormally(h3, subtract(v1, v2));
1689	<	r1.assertValue(subtract(v1, v2));
1690	<	r2.assertValue(subtract(v1, v2));
1691	<	r3.assertValue(subtract(v1, v2));
1688	>	checkCompletedNormally(h4, subtract(v1, v2));
1689	>	rs[0].assertValue(subtract(v1, v2));
1690	>	rs[2].assertValue(subtract(v1, v2));
1691	>	rs[4].assertValue(subtract(v1, v2));
1692	>
1693		checkCompletedNormally(f, v1);
1694		checkCompletedNormally(g, v2);
1695		}}
#	Line 1677 | Line 1807 | public class CompletableFutureTest exten
1807		assertTrue(snd.complete(w2));
1808		final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1809
1810	<	checkCompletedWithWrappedCFException(h1);
1811	<	checkCompletedWithWrappedCFException(h2);
1812	<	checkCompletedWithWrappedCFException(h3);
1810	>	checkCompletedWithWrappedException(h1, r1.ex);
1811	>	checkCompletedWithWrappedException(h2, r2.ex);
1812	>	checkCompletedWithWrappedException(h3, r3.ex);
1813	>	r1.assertInvoked();
1814	>	r2.assertInvoked();
1815	>	r3.assertInvoked();
1816		checkCompletedNormally(f, v1);
1817		checkCompletedNormally(g, v2);
1818		}}
#	Line 1838 | Line 1971 | public class CompletableFutureTest exten
1971		assertTrue(snd.complete(w2));
1972		final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1973
1974	<	checkCompletedWithWrappedCFException(h1);
1975	<	checkCompletedWithWrappedCFException(h2);
1976	<	checkCompletedWithWrappedCFException(h3);
1974	>	checkCompletedWithWrappedException(h1, r1.ex);
1975	>	checkCompletedWithWrappedException(h2, r2.ex);
1976	>	checkCompletedWithWrappedException(h3, r3.ex);
1977	>	r1.assertInvoked();
1978	>	r2.assertInvoked();
1979	>	r3.assertInvoked();
1980		checkCompletedNormally(f, v1);
1981		checkCompletedNormally(g, v2);
1982		}}
#	Line 1851 | Line 1987 | public class CompletableFutureTest exten
1987		*/
1988		public void testRunAfterBoth_normalCompletion() {
1989		for (ExecutionMode m : ExecutionMode.values())
1854	–	for (boolean createIncomplete : new boolean[] { true, false })
1990		for (boolean fFirst : new boolean[] { true, false })
1991		for (Integer v1 : new Integer[] { 1, null })
1992		for (Integer v2 : new Integer[] { 2, null })
1993		{
1994		final CompletableFuture<Integer> f = new CompletableFuture<>();
1995		final CompletableFuture<Integer> g = new CompletableFuture<>();
1996	<	final Noop r = new Noop(m);
1996	>	final Noop r1 = new Noop(m);
1997	>	final Noop r2 = new Noop(m);
1998	>	final Noop r3 = new Noop(m);
1999
2000	<	assertTrue(fFirst ? f.complete(v1) : g.complete(v2));
2001	<	if (!createIncomplete)
2002	<	assertTrue(!fFirst ? f.complete(v1) : g.complete(v2));
2003	<	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	<	}
2000	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2001	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2002	>	final Integer w1 =  fFirst ? v1 : v2;
2003	>	final Integer w2 = !fFirst ? v1 : v2;
2004
2005	<	checkCompletedNormally(h, null);
2006	<	r.assertInvoked();
2005	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2006	>	assertTrue(fst.complete(w1));
2007	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2008	>	checkIncomplete(h1);
2009	>	checkIncomplete(h2);
2010	>	r1.assertNotInvoked();
2011	>	r2.assertNotInvoked();
2012	>	assertTrue(snd.complete(w2));
2013	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2014	>
2015	>	checkCompletedNormally(h1, null);
2016	>	checkCompletedNormally(h2, null);
2017	>	checkCompletedNormally(h3, null);
2018	>	r1.assertInvoked();
2019	>	r2.assertInvoked();
2020	>	r3.assertInvoked();
2021		checkCompletedNormally(f, v1);
2022		checkCompletedNormally(g, v2);
2023		}}
#	Line 1880 | Line 2026 | public class CompletableFutureTest exten
2026		* runAfterBoth result completes exceptionally after exceptional
2027		* completion of either source
2028		*/
2029	<	public void testRunAfterBoth_exceptionalCompletion() {
2029	>	public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
2030		for (ExecutionMode m : ExecutionMode.values())
1885	–	for (boolean createIncomplete : new boolean[] { true, false })
2031		for (boolean fFirst : new boolean[] { true, false })
2032	+	for (boolean failFirst : new boolean[] { true, false })
2033		for (Integer v1 : new Integer[] { 1, null })
2034		{
2035		final CompletableFuture<Integer> f = new CompletableFuture<>();
2036		final CompletableFuture<Integer> g = new CompletableFuture<>();
2037		final CFException ex = new CFException();
2038	<	final Noop r = new Noop(m);
2038	>	final Noop r1 = new Noop(m);
2039	>	final Noop r2 = new Noop(m);
2040	>	final Noop r3 = new Noop(m);
2041
2042	<	assertTrue((fFirst ? f : g).complete(v1));
2043	<	if (!createIncomplete)
2044	<	assertTrue((!fFirst ? f : g).completeExceptionally(ex));
2045	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2046	<	if (createIncomplete) {
2047	<	checkIncomplete(h);
2048	<	assertTrue((!fFirst ? f : g).completeExceptionally(ex));
2049	<	}
2042	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2043	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2044	>	final Callable<Boolean> complete1 = failFirst ?
2045	>	() -> fst.completeExceptionally(ex) :
2046	>	() -> fst.complete(v1);
2047	>	final Callable<Boolean> complete2 = failFirst ?
2048	>	() -> snd.complete(v1) :
2049	>	() -> snd.completeExceptionally(ex);
2050
2051	<	checkCompletedWithWrappedException(h, ex);
2052	<	r.assertNotInvoked();
2053	<	checkCompletedNormally(fFirst ? f : g, v1);
2054	<	checkCompletedExceptionally(!fFirst ? f : g, ex);
2051	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2052	>	assertTrue(complete1.call());
2053	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2054	>	checkIncomplete(h1);
2055	>	checkIncomplete(h2);
2056	>	assertTrue(complete2.call());
2057	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2058	>
2059	>	checkCompletedWithWrappedException(h1, ex);
2060	>	checkCompletedWithWrappedException(h2, ex);
2061	>	checkCompletedWithWrappedException(h3, ex);
2062	>	r1.assertNotInvoked();
2063	>	r2.assertNotInvoked();
2064	>	r3.assertNotInvoked();
2065	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2066	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
2067		}}
2068
2069		/**
2070		* runAfterBoth result completes exceptionally if either source cancelled
2071		*/
2072	<	public void testRunAfterBoth_sourceCancelled() {
2072	>	public void testRunAfterBoth_sourceCancelled() throws Throwable {
2073		for (ExecutionMode m : ExecutionMode.values())
2074		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1915	–	for (boolean createIncomplete : new boolean[] { true, false })
2075		for (boolean fFirst : new boolean[] { true, false })
2076	+	for (boolean failFirst : new boolean[] { true, false })
2077		for (Integer v1 : new Integer[] { 1, null })
2078		{
2079		final CompletableFuture<Integer> f = new CompletableFuture<>();
2080		final CompletableFuture<Integer> g = new CompletableFuture<>();
2081	<	final Noop r = new Noop(m);
2081	>	final Noop r1 = new Noop(m);
2082	>	final Noop r2 = new Noop(m);
2083	>	final Noop r3 = new Noop(m);
2084
2085	<	assertTrue((fFirst ? f : g).complete(v1));
2086	<	if (!createIncomplete)
2087	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
2088	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2089	<	if (createIncomplete) {
2090	<	checkIncomplete(h);
2091	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
2092	<	}
2085	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2086	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2087	>	final Callable<Boolean> complete1 = failFirst ?
2088	>	() -> fst.cancel(mayInterruptIfRunning) :
2089	>	() -> fst.complete(v1);
2090	>	final Callable<Boolean> complete2 = failFirst ?
2091	>	() -> snd.complete(v1) :
2092	>	() -> snd.cancel(mayInterruptIfRunning);
2093
2094	<	checkCompletedWithWrappedCancellationException(h);
2095	<	checkCancelled(!fFirst ? f : g);
2096	<	r.assertNotInvoked();
2097	<	checkCompletedNormally(fFirst ? f : g, v1);
2094	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2095	>	assertTrue(complete1.call());
2096	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2097	>	checkIncomplete(h1);
2098	>	checkIncomplete(h2);
2099	>	assertTrue(complete2.call());
2100	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2101	>
2102	>	checkCompletedWithWrappedCancellationException(h1);
2103	>	checkCompletedWithWrappedCancellationException(h2);
2104	>	checkCompletedWithWrappedCancellationException(h3);
2105	>	r1.assertNotInvoked();
2106	>	r2.assertNotInvoked();
2107	>	r3.assertNotInvoked();
2108	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2109	>	checkCancelled(failFirst ? fst : snd);
2110		}}
2111
2112		/**
#	Line 1948 | Line 2122 | public class CompletableFutureTest exten
2122		final CompletableFuture<Integer> g = new CompletableFuture<>();
2123		final FailingRunnable r1 = new FailingRunnable(m);
2124		final FailingRunnable r2 = new FailingRunnable(m);
2125	+	final FailingRunnable r3 = new FailingRunnable(m);
2126
2127	<	CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2128	<	assertTrue(fFirst ? f.complete(v1) : g.complete(v2));
2129	<	assertTrue(!fFirst ? f.complete(v1) : g.complete(v2));
2130	<	CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2127	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2128	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2129	>	final Integer w1 =  fFirst ? v1 : v2;
2130	>	final Integer w2 = !fFirst ? v1 : v2;
2131	>
2132	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2133	>	assertTrue(fst.complete(w1));
2134	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2135	>	assertTrue(snd.complete(w2));
2136	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2137
2138	<	checkCompletedWithWrappedCFException(h1);
2139	<	checkCompletedWithWrappedCFException(h2);
2138	>	checkCompletedWithWrappedException(h1, r1.ex);
2139	>	checkCompletedWithWrappedException(h2, r2.ex);
2140	>	checkCompletedWithWrappedException(h3, r3.ex);
2141	>	r1.assertInvoked();
2142	>	r2.assertInvoked();
2143	>	r3.assertInvoked();
2144		checkCompletedNormally(f, v1);
2145		checkCompletedNormally(g, v2);
2146		}}
#	Line 2242 | Line 2427 | public class CompletableFutureTest exten
2427		f.complete(v1);
2428		final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2429		final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2430	<	checkCompletedWithWrappedCFException(h0);
2431	<	checkCompletedWithWrappedCFException(h1);
2432	<	checkCompletedWithWrappedCFException(h2);
2433	<	checkCompletedWithWrappedCFException(h3);
2430	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2431	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2432	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2433	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2434		for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2435
2436		g.complete(v2);
#	Line 2254 | Line 2439 | public class CompletableFutureTest exten
2439		final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2440		final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2441
2442	<	checkCompletedWithWrappedCFException(h4);
2442	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2443		assertTrue(Objects.equals(v1, rs[4].value) ||
2444		Objects.equals(v2, rs[4].value));
2445	<	checkCompletedWithWrappedCFException(h5);
2445	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2446		assertTrue(Objects.equals(v1, rs[5].value) ||
2447		Objects.equals(v2, rs[5].value));
2448
#	Line 2395 | Line 2580 | public class CompletableFutureTest exten
2580
2581		// unspecified behavior - both source completions available
2582		try {
2583	<	assertEquals(null, h0.join());
2583	>	assertNull(h0.join());
2584		rs[0].assertValue(v1);
2585		} catch (CompletionException ok) {
2586		checkCompletedWithWrappedException(h0, ex);
2587		rs[0].assertNotInvoked();
2588		}
2589		try {
2590	<	assertEquals(null, h1.join());
2590	>	assertNull(h1.join());
2591		rs[1].assertValue(v1);
2592		} catch (CompletionException ok) {
2593		checkCompletedWithWrappedException(h1, ex);
2594		rs[1].assertNotInvoked();
2595		}
2596		try {
2597	<	assertEquals(null, h2.join());
2597	>	assertNull(h2.join());
2598		rs[2].assertValue(v1);
2599		} catch (CompletionException ok) {
2600		checkCompletedWithWrappedException(h2, ex);
2601		rs[2].assertNotInvoked();
2602		}
2603		try {
2604	<	assertEquals(null, h3.join());
2604	>	assertNull(h3.join());
2605		rs[3].assertValue(v1);
2606		} catch (CompletionException ok) {
2607		checkCompletedWithWrappedException(h3, ex);
#	Line 2501 | Line 2686 | public class CompletableFutureTest exten
2686		f.complete(v1);
2687		final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2688		final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2689	<	checkCompletedWithWrappedCFException(h0);
2690	<	checkCompletedWithWrappedCFException(h1);
2691	<	checkCompletedWithWrappedCFException(h2);
2692	<	checkCompletedWithWrappedCFException(h3);
2689	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2690	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2691	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2692	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2693		for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2694
2695		g.complete(v2);
#	Line 2513 | Line 2698 | public class CompletableFutureTest exten
2698		final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2699		final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2700
2701	<	checkCompletedWithWrappedCFException(h4);
2701	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2702		assertTrue(Objects.equals(v1, rs[4].value) ||
2703		Objects.equals(v2, rs[4].value));
2704	<	checkCompletedWithWrappedCFException(h5);
2704	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2705		assertTrue(Objects.equals(v1, rs[5].value) ||
2706		Objects.equals(v2, rs[5].value));
2707
#	Line 2532 | Line 2717 | public class CompletableFutureTest exten
2717		for (ExecutionMode m : ExecutionMode.values())
2718		for (Integer v1 : new Integer[] { 1, null })
2719		for (Integer v2 : new Integer[] { 2, null })
2720	+	for (boolean pushNop : new boolean[] { true, false })
2721		{
2722		final CompletableFuture<Integer> f = new CompletableFuture<>();
2723		final CompletableFuture<Integer> g = new CompletableFuture<>();
#	Line 2544 | Line 2730 | public class CompletableFutureTest exten
2730		checkIncomplete(h1);
2731		rs[0].assertNotInvoked();
2732		rs[1].assertNotInvoked();
2733	+	if (pushNop) {          // ad hoc test of intra-completion interference
2734	+	m.thenRun(f, () -> {});
2735	+	m.thenRun(g, () -> {});
2736	+	}
2737		f.complete(v1);
2738		checkCompletedNormally(h0, null);
2739		checkCompletedNormally(h1, null);
#	Line 2650 | Line 2840 | public class CompletableFutureTest exten
2840
2841		// unspecified behavior - both source completions available
2842		try {
2843	<	assertEquals(null, h0.join());
2843	>	assertNull(h0.join());
2844		rs[0].assertInvoked();
2845		} catch (CompletionException ok) {
2846		checkCompletedWithWrappedException(h0, ex);
2847		rs[0].assertNotInvoked();
2848		}
2849		try {
2850	<	assertEquals(null, h1.join());
2850	>	assertNull(h1.join());
2851		rs[1].assertInvoked();
2852		} catch (CompletionException ok) {
2853		checkCompletedWithWrappedException(h1, ex);
2854		rs[1].assertNotInvoked();
2855		}
2856		try {
2857	<	assertEquals(null, h2.join());
2857	>	assertNull(h2.join());
2858		rs[2].assertInvoked();
2859		} catch (CompletionException ok) {
2860		checkCompletedWithWrappedException(h2, ex);
2861		rs[2].assertNotInvoked();
2862		}
2863		try {
2864	<	assertEquals(null, h3.join());
2864	>	assertNull(h3.join());
2865		rs[3].assertInvoked();
2866		} catch (CompletionException ok) {
2867		checkCompletedWithWrappedException(h3, ex);
#	Line 2756 | Line 2946 | public class CompletableFutureTest exten
2946		assertTrue(f.complete(v1));
2947		final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2948		final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2949	<	checkCompletedWithWrappedCFException(h0);
2950	<	checkCompletedWithWrappedCFException(h1);
2951	<	checkCompletedWithWrappedCFException(h2);
2952	<	checkCompletedWithWrappedCFException(h3);
2949	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2950	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2951	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2952	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2953		for (int i = 0; i < 4; i++) rs[i].assertInvoked();
2954		assertTrue(g.complete(v2));
2955		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2956		final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2957	<	checkCompletedWithWrappedCFException(h4);
2958	<	checkCompletedWithWrappedCFException(h5);
2957	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2958	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2959
2960		checkCompletedNormally(f, v1);
2961		checkCompletedNormally(g, v2);
#	Line 2826 | Line 3016 | public class CompletableFutureTest exten
3016		final CompletableFuture<Integer> g = m.thenCompose(f, r);
3017		if (createIncomplete) assertTrue(f.complete(v1));
3018
3019	<	checkCompletedWithWrappedCFException(g);
3019	>	checkCompletedWithWrappedException(g, r.ex);
3020		checkCompletedNormally(f, v1);
3021		}}
3022
#	Line 2851 | Line 3041 | public class CompletableFutureTest exten
3041		checkCancelled(f);
3042		}}
3043
3044	+	/**
3045	+	* thenCompose result completes exceptionally if the result of the action does
3046	+	*/
3047	+	public void testThenCompose_actionReturnsFailingFuture() {
3048	+	for (ExecutionMode m : ExecutionMode.values())
3049	+	for (int order = 0; order < 6; order++)
3050	+	for (Integer v1 : new Integer[] { 1, null })
3051	+	{
3052	+	final CFException ex = new CFException();
3053	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3054	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
3055	+	final CompletableFuture<Integer> h;
3056	+	// Test all permutations of orders
3057	+	switch (order) {
3058	+	case 0:
3059	+	assertTrue(f.complete(v1));
3060	+	assertTrue(g.completeExceptionally(ex));
3061	+	h = m.thenCompose(f, (x -> g));
3062	+	break;
3063	+	case 1:
3064	+	assertTrue(f.complete(v1));
3065	+	h = m.thenCompose(f, (x -> g));
3066	+	assertTrue(g.completeExceptionally(ex));
3067	+	break;
3068	+	case 2:
3069	+	assertTrue(g.completeExceptionally(ex));
3070	+	assertTrue(f.complete(v1));
3071	+	h = m.thenCompose(f, (x -> g));
3072	+	break;
3073	+	case 3:
3074	+	assertTrue(g.completeExceptionally(ex));
3075	+	h = m.thenCompose(f, (x -> g));
3076	+	assertTrue(f.complete(v1));
3077	+	break;
3078	+	case 4:
3079	+	h = m.thenCompose(f, (x -> g));
3080	+	assertTrue(f.complete(v1));
3081	+	assertTrue(g.completeExceptionally(ex));
3082	+	break;
3083	+	case 5:
3084	+	h = m.thenCompose(f, (x -> g));
3085	+	assertTrue(f.complete(v1));
3086	+	assertTrue(g.completeExceptionally(ex));
3087	+	break;
3088	+	default: throw new AssertionError();
3089	+	}
3090	+
3091	+	checkCompletedExceptionally(g, ex);
3092	+	checkCompletedWithWrappedException(h, ex);
3093	+	checkCompletedNormally(f, v1);
3094	+	}}
3095	+
3096		// other static methods
3097
3098		/**
#	Line 2867 | Line 3109 | public class CompletableFutureTest exten
3109		* when all components complete normally
3110		*/
3111		public void testAllOf_normal() throws Exception {
3112	<	for (int k = 1; k < 20; ++k) {
3112	>	for (int k = 1; k < 10; k++) {
3113		CompletableFuture<Integer>[] fs
3114		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3115	<	for (int i = 0; i < k; ++i)
3115	>	for (int i = 0; i < k; i++)
3116		fs[i] = new CompletableFuture<>();
3117		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3118	<	for (int i = 0; i < k; ++i) {
3118	>	for (int i = 0; i < k; i++) {
3119		checkIncomplete(f);
3120		checkIncomplete(CompletableFuture.allOf(fs));
3121		fs[i].complete(one);
#	Line 2883 | Line 3125 | public class CompletableFutureTest exten
3125		}
3126		}
3127
3128	<	public void testAllOf_backwards() throws Exception {
3129	<	for (int k = 1; k < 20; ++k) {
3128	>	public void testAllOf_normal_backwards() throws Exception {
3129	>	for (int k = 1; k < 10; k++) {
3130		CompletableFuture<Integer>[] fs
3131		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3132	<	for (int i = 0; i < k; ++i)
3132	>	for (int i = 0; i < k; i++)
3133		fs[i] = new CompletableFuture<>();
3134		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3135		for (int i = k - 1; i >= 0; i--) {
#	Line 2900 | Line 3142 | public class CompletableFutureTest exten
3142		}
3143		}
3144
3145	+	public void testAllOf_exceptional() throws Exception {
3146	+	for (int k = 1; k < 10; k++) {
3147	+	CompletableFuture<Integer>[] fs
3148	+	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3149	+	CFException ex = new CFException();
3150	+	for (int i = 0; i < k; i++)
3151	+	fs[i] = new CompletableFuture<>();
3152	+	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3153	+	for (int i = 0; i < k; i++) {
3154	+	checkIncomplete(f);
3155	+	checkIncomplete(CompletableFuture.allOf(fs));
3156	+	if (i != k / 2) {
3157	+	fs[i].complete(i);
3158	+	checkCompletedNormally(fs[i], i);
3159	+	} else {
3160	+	fs[i].completeExceptionally(ex);
3161	+	checkCompletedExceptionally(fs[i], ex);
3162	+	}
3163	+	}
3164	+	checkCompletedWithWrappedException(f, ex);
3165	+	checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3166	+	}
3167	+	}
3168	+
3169		/**
3170		* anyOf(no component futures) returns an incomplete future
3171		*/
3172		public void testAnyOf_empty() throws Exception {
3173	+	for (Integer v1 : new Integer[] { 1, null })
3174	+	{
3175		CompletableFuture<Object> f = CompletableFuture.anyOf();
3176		checkIncomplete(f);
3177	<	}
3177	>
3178	>	f.complete(v1);
3179	>	checkCompletedNormally(f, v1);
3180	>	}}
3181
3182		/**
3183		* anyOf returns a future completed normally with a value when
3184		* a component future does
3185		*/
3186		public void testAnyOf_normal() throws Exception {
3187	<	for (int k = 0; k < 10; ++k) {
3187	>	for (int k = 0; k < 10; k++) {
3188		CompletableFuture[] fs = new CompletableFuture[k];
3189	<	for (int i = 0; i < k; ++i)
3189	>	for (int i = 0; i < k; i++)
3190		fs[i] = new CompletableFuture<>();
3191		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3192		checkIncomplete(f);
3193	<	for (int i = 0; i < k; ++i) {
3194	<	fs[i].complete(one);
3195	<	checkCompletedNormally(f, one);
3196	<	checkCompletedNormally(CompletableFuture.anyOf(fs), one);
3193	>	for (int i = 0; i < k; i++) {
3194	>	fs[i].complete(i);
3195	>	checkCompletedNormally(f, 0);
3196	>	int x = (int) CompletableFuture.anyOf(fs).join();
3197	>	assertTrue(0 <= x && x <= i);
3198	>	}
3199	>	}
3200	>	}
3201	>	public void testAnyOf_normal_backwards() throws Exception {
3202	>	for (int k = 0; k < 10; k++) {
3203	>	CompletableFuture[] fs = new CompletableFuture[k];
3204	>	for (int i = 0; i < k; i++)
3205	>	fs[i] = new CompletableFuture<>();
3206	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3207	>	checkIncomplete(f);
3208	>	for (int i = k - 1; i >= 0; i--) {
3209	>	fs[i].complete(i);
3210	>	checkCompletedNormally(f, k - 1);
3211	>	int x = (int) CompletableFuture.anyOf(fs).join();
3212	>	assertTrue(i <= x && x <= k - 1);
3213		}
3214		}
3215		}
#	Line 2931 | Line 3218 | public class CompletableFutureTest exten
3218		* anyOf result completes exceptionally when any component does.
3219		*/
3220		public void testAnyOf_exceptional() throws Exception {
3221	<	for (int k = 0; k < 10; ++k) {
3221	>	for (int k = 0; k < 10; k++) {
3222		CompletableFuture[] fs = new CompletableFuture[k];
3223	<	for (int i = 0; i < k; ++i)
3223	>	CFException[] exs = new CFException[k];
3224	>	for (int i = 0; i < k; i++) {
3225		fs[i] = new CompletableFuture<>();
3226	+	exs[i] = new CFException();
3227	+	}
3228		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3229		checkIncomplete(f);
3230	<	for (int i = 0; i < k; ++i) {
3231	<	fs[i].completeExceptionally(new CFException());
3232	<	checkCompletedWithWrappedCFException(f);
3230	>	for (int i = 0; i < k; i++) {
3231	>	fs[i].completeExceptionally(exs[i]);
3232	>	checkCompletedWithWrappedException(f, exs[0]);
3233	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3234	>	}
3235	>	}
3236	>	}
3237	>
3238	>	public void testAnyOf_exceptional_backwards() throws Exception {
3239	>	for (int k = 0; k < 10; k++) {
3240	>	CompletableFuture[] fs = new CompletableFuture[k];
3241	>	CFException[] exs = new CFException[k];
3242	>	for (int i = 0; i < k; i++) {
3243	>	fs[i] = new CompletableFuture<>();
3244	>	exs[i] = new CFException();
3245	>	}
3246	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3247	>	checkIncomplete(f);
3248	>	for (int i = k - 1; i >= 0; i--) {
3249	>	fs[i].completeExceptionally(exs[i]);
3250	>	checkCompletedWithWrappedException(f, exs[k - 1]);
3251		checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3252		}
3253		}
#	Line 2948 | Line 3256 | public class CompletableFutureTest exten
3256		/**
3257		* Completion methods throw NullPointerException with null arguments
3258		*/
3259	+	@SuppressWarnings("FutureReturnValueIgnored")
3260		public void testNPE() {
3261		CompletableFuture<Integer> f = new CompletableFuture<>();
3262		CompletableFuture<Integer> g = new CompletableFuture<>();
3263		CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
2955	–	CompletableFuture<?> h;
3264		ThreadExecutor exec = new ThreadExecutor();
3265
3266		Runnable[] throwingActions = {
3267		() -> CompletableFuture.supplyAsync(null),
3268		() -> CompletableFuture.supplyAsync(null, exec),
3269	<	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.DEFAULT, 42), null),
3269	>	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3270
3271		() -> CompletableFuture.runAsync(null),
3272		() -> CompletableFuture.runAsync(null, exec),
#	Line 2968 | Line 3276 | public class CompletableFutureTest exten
3276
3277		() -> f.thenApply(null),
3278		() -> f.thenApplyAsync(null),
3279	<	() -> f.thenApplyAsync((x) -> x, null),
3279	>	() -> f.thenApplyAsync(x -> x, null),
3280		() -> f.thenApplyAsync(null, exec),
3281
3282		() -> f.thenAccept(null),
3283		() -> f.thenAcceptAsync(null),
3284	<	() -> f.thenAcceptAsync((x) -> {} , null),
3284	>	() -> f.thenAcceptAsync(x -> {} , null),
3285		() -> f.thenAcceptAsync(null, exec),
3286
3287		() -> f.thenRun(null),
#	Line 3008 | Line 3316 | public class CompletableFutureTest exten
3316		() -> f.applyToEither(g, null),
3317		() -> f.applyToEitherAsync(g, null),
3318		() -> f.applyToEitherAsync(g, null, exec),
3319	<	() -> f.applyToEither(nullFuture, (x) -> x),
3320	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x),
3321	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
3322	<	() -> f.applyToEitherAsync(g, (x) -> x, null),
3319	>	() -> f.applyToEither(nullFuture, x -> x),
3320	>	() -> f.applyToEitherAsync(nullFuture, x -> x),
3321	>	() -> f.applyToEitherAsync(nullFuture, x -> x, exec),
3322	>	() -> f.applyToEitherAsync(g, x -> x, null),
3323
3324		() -> f.acceptEither(g, null),
3325		() -> f.acceptEitherAsync(g, null),
3326		() -> f.acceptEitherAsync(g, null, exec),
3327	<	() -> f.acceptEither(nullFuture, (x) -> {}),
3328	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}),
3329	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
3330	<	() -> f.acceptEitherAsync(g, (x) -> {}, null),
3327	>	() -> f.acceptEither(nullFuture, x -> {}),
3328	>	() -> f.acceptEitherAsync(nullFuture, x -> {}),
3329	>	() -> f.acceptEitherAsync(nullFuture, x -> {}, exec),
3330	>	() -> f.acceptEitherAsync(g, x -> {}, null),
3331
3332		() -> f.runAfterEither(g, null),
3333		() -> f.runAfterEitherAsync(g, null),
#	Line 3049 | Line 3357 | public class CompletableFutureTest exten
3357		() -> CompletableFuture.anyOf(null, f),
3358
3359		() -> f.obtrudeException(null),
3360	+
3361	+	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3362	+	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3363	+	() -> CompletableFuture.delayedExecutor(1L, null),
3364	+
3365	+	() -> f.orTimeout(1L, null),
3366	+	() -> f.completeOnTimeout(42, 1L, null),
3367	+
3368	+	() -> CompletableFuture.failedFuture(null),
3369	+	() -> CompletableFuture.failedStage(null),
3370		};
3371
3372		assertThrows(NullPointerException.class, throwingActions);
#	Line 3056 | Line 3374 | public class CompletableFutureTest exten
3374		}
3375
3376		/**
3377	+	* Test submissions to an executor that rejects all tasks.
3378	+	*/
3379	+	public void testRejectingExecutor() {
3380	+	for (Integer v : new Integer[] { 1, null })
3381	+	{
3382	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3383	+
3384	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3385	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3386	+
3387	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3388	+
3389	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3390	+	srcs.add(complete);
3391	+	srcs.add(incomplete);
3392	+
3393	+	for (CompletableFuture<Integer> src : srcs) {
3394	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3395	+	fs.add(src.thenRunAsync(() -> {}, e));
3396	+	fs.add(src.thenAcceptAsync(z -> {}, e));
3397	+	fs.add(src.thenApplyAsync(z -> z, e));
3398	+
3399	+	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3400	+	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3401	+	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3402	+
3403	+	fs.add(src.applyToEitherAsync(src, z -> z, e));
3404	+	fs.add(src.acceptEitherAsync(src, z -> {}, e));
3405	+	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3406	+
3407	+	fs.add(src.thenComposeAsync(z -> null, e));
3408	+	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3409	+	fs.add(src.handleAsync((z, t) -> null, e));
3410	+
3411	+	for (CompletableFuture<?> future : fs) {
3412	+	if (src.isDone())
3413	+	checkCompletedWithWrappedException(future, e.ex);
3414	+	else
3415	+	checkIncomplete(future);
3416	+	}
3417	+	futures.addAll(fs);
3418	+	}
3419	+
3420	+	{
3421	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3422	+
3423	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3424	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3425	+
3426	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3427	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3428	+
3429	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3430	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3431	+
3432	+	for (CompletableFuture<?> future : fs)
3433	+	checkIncomplete(future);
3434	+	futures.addAll(fs);
3435	+	}
3436	+
3437	+	{
3438	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3439	+
3440	+	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3441	+	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3442	+
3443	+	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3444	+	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3445	+
3446	+	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3447	+	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3448	+
3449	+	for (CompletableFuture<?> future : fs)
3450	+	checkCompletedWithWrappedException(future, e.ex);
3451	+	futures.addAll(fs);
3452	+	}
3453	+
3454	+	incomplete.complete(v);
3455	+
3456	+	for (CompletableFuture<?> future : futures)
3457	+	checkCompletedWithWrappedException(future, e.ex);
3458	+
3459	+	assertEquals(futures.size(), e.count.get());
3460	+	}}
3461	+
3462	+	/**
3463	+	* Test submissions to an executor that rejects all tasks, but
3464	+	* should never be invoked because the dependent future is
3465	+	* explicitly completed.
3466	+	*/
3467	+	public void testRejectingExecutorNeverInvoked() {
3468	+	for (Integer v : new Integer[] { 1, null })
3469	+	{
3470	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3471	+
3472	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3473	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3474	+
3475	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3476	+
3477	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3478	+	srcs.add(complete);
3479	+	srcs.add(incomplete);
3480	+
3481	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3482	+	fs.add(incomplete.thenRunAsync(() -> {}, e));
3483	+	fs.add(incomplete.thenAcceptAsync(z -> {}, e));
3484	+	fs.add(incomplete.thenApplyAsync(z -> z, e));
3485	+
3486	+	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3487	+	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3488	+	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3489	+
3490	+	fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e));
3491	+	fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e));
3492	+	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3493	+
3494	+	fs.add(incomplete.thenComposeAsync(z -> null, e));
3495	+	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3496	+	fs.add(incomplete.handleAsync((z, t) -> null, e));
3497	+
3498	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3499	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3500	+
3501	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3502	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3503	+
3504	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3505	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3506	+
3507	+	for (CompletableFuture<?> future : fs)
3508	+	checkIncomplete(future);
3509	+
3510	+	for (CompletableFuture<?> future : fs)
3511	+	future.complete(null);
3512	+
3513	+	incomplete.complete(v);
3514	+
3515	+	for (CompletableFuture<?> future : fs)
3516	+	checkCompletedNormally(future, null);
3517	+
3518	+	assertEquals(0, e.count.get());
3519	+	}}
3520	+
3521	+	/**
3522		* toCompletableFuture returns this CompletableFuture.
3523		*/
3524		public void testToCompletableFuture() {
#	Line 3063 | Line 3526 | public class CompletableFutureTest exten
3526		assertSame(f, f.toCompletableFuture());
3527		}
3528
3529	<	//     public void testRunAfterEither_resultDeterminedAtTimeOfCreation() {
3530	<	//         for (ExecutionMode m : ExecutionMode.values())
3531	<	//         for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3532	<	//         for (Integer v1 : new Integer[] { 1, null })
3533	<	//     {
3534	<	//         final CompletableFuture<Integer> f = new CompletableFuture<>();
3535	<	//         final CompletableFuture<Integer> g = new CompletableFuture<>();
3536	<	//         final Noop[] rs = new Noop[2];
3537	<	//         for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
3538	<	//         f.complete(v1);
3539	<	//         final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
3540	<	//         final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
3541	<	//         assertTrue(g.cancel(mayInterruptIfRunning));
3542	<	//         checkCompletedNormally(h0, null);
3543	<	//         checkCompletedNormally(h1, null);
3544	<	//         for (Noop r : rs) r.assertInvoked();
3545	<	//     }}
3529	>	// jdk9
3530	>
3531	>	/**
3532	>	* newIncompleteFuture returns an incomplete CompletableFuture
3533	>	*/
3534	>	public void testNewIncompleteFuture() {
3535	>	for (Integer v1 : new Integer[] { 1, null })
3536	>	{
3537	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3538	>	CompletableFuture<Integer> g = f.newIncompleteFuture();
3539	>	checkIncomplete(f);
3540	>	checkIncomplete(g);
3541	>	f.complete(v1);
3542	>	checkCompletedNormally(f, v1);
3543	>	checkIncomplete(g);
3544	>	g.complete(v1);
3545	>	checkCompletedNormally(g, v1);
3546	>	assertSame(g.getClass(), CompletableFuture.class);
3547	>	}}
3548	>
3549	>	/**
3550	>	* completedStage returns a completed CompletionStage
3551	>	*/
3552	>	public void testCompletedStage() {
3553	>	AtomicInteger x = new AtomicInteger(0);
3554	>	AtomicReference<Throwable> r = new AtomicReference<>();
3555	>	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3556	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3557	>	assertEquals(x.get(), 1);
3558	>	assertNull(r.get());
3559	>	}
3560	>
3561	>	/**
3562	>	* defaultExecutor by default returns the commonPool if
3563	>	* it supports more than one thread.
3564	>	*/
3565	>	public void testDefaultExecutor() {
3566	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3567	>	Executor e = f.defaultExecutor();
3568	>	Executor c = ForkJoinPool.commonPool();
3569	>	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3570	>	assertSame(e, c);
3571	>	else
3572	>	assertNotSame(e, c);
3573	>	}
3574	>
3575	>	/**
3576	>	* failedFuture returns a CompletableFuture completed
3577	>	* exceptionally with the given Exception
3578	>	*/
3579	>	public void testFailedFuture() {
3580	>	CFException ex = new CFException();
3581	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3582	>	checkCompletedExceptionally(f, ex);
3583	>	}
3584	>
3585	>	/**
3586	>	* failedFuture(null) throws NPE
3587	>	*/
3588	>	public void testFailedFuture_null() {
3589	>	try {
3590	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3591	>	shouldThrow();
3592	>	} catch (NullPointerException success) {}
3593	>	}
3594	>
3595	>	/**
3596	>	* copy returns a CompletableFuture that is completed normally,
3597	>	* with the same value, when source is.
3598	>	*/
3599	>	public void testCopy_normalCompletion() {
3600	>	for (boolean createIncomplete : new boolean[] { true, false })
3601	>	for (Integer v1 : new Integer[] { 1, null })
3602	>	{
3603	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3604	>	if (!createIncomplete) assertTrue(f.complete(v1));
3605	>	CompletableFuture<Integer> g = f.copy();
3606	>	if (createIncomplete) {
3607	>	checkIncomplete(f);
3608	>	checkIncomplete(g);
3609	>	assertTrue(f.complete(v1));
3610	>	}
3611	>	checkCompletedNormally(f, v1);
3612	>	checkCompletedNormally(g, v1);
3613	>	}}
3614	>
3615	>	/**
3616	>	* copy returns a CompletableFuture that is completed exceptionally
3617	>	* when source is.
3618	>	*/
3619	>	public void testCopy_exceptionalCompletion() {
3620	>	for (boolean createIncomplete : new boolean[] { true, false })
3621	>	{
3622	>	CFException ex = new CFException();
3623	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3624	>	if (!createIncomplete) f.completeExceptionally(ex);
3625	>	CompletableFuture<Integer> g = f.copy();
3626	>	if (createIncomplete) {
3627	>	checkIncomplete(f);
3628	>	checkIncomplete(g);
3629	>	f.completeExceptionally(ex);
3630	>	}
3631	>	checkCompletedExceptionally(f, ex);
3632	>	checkCompletedWithWrappedException(g, ex);
3633	>	}}
3634	>
3635	>	/**
3636	>	* Completion of a copy does not complete its source.
3637	>	*/
3638	>	public void testCopy_oneWayPropagation() {
3639	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3640	>	assertTrue(f.copy().complete(1));
3641	>	assertTrue(f.copy().complete(null));
3642	>	assertTrue(f.copy().cancel(true));
3643	>	assertTrue(f.copy().cancel(false));
3644	>	assertTrue(f.copy().completeExceptionally(new CFException()));
3645	>	checkIncomplete(f);
3646	>	}
3647	>
3648	>	/**
3649	>	* minimalCompletionStage returns a CompletableFuture that is
3650	>	* completed normally, with the same value, when source is.
3651	>	*/
3652	>	public void testMinimalCompletionStage() {
3653	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3654	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3655	>	AtomicInteger x = new AtomicInteger(0);
3656	>	AtomicReference<Throwable> r = new AtomicReference<>();
3657	>	checkIncomplete(f);
3658	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3659	>	f.complete(1);
3660	>	checkCompletedNormally(f, 1);
3661	>	assertEquals(x.get(), 1);
3662	>	assertNull(r.get());
3663	>	}
3664	>
3665	>	/**
3666	>	* minimalCompletionStage returns a CompletableFuture that is
3667	>	* completed exceptionally when source is.
3668	>	*/
3669	>	public void testMinimalCompletionStage2() {
3670	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3671	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3672	>	AtomicInteger x = new AtomicInteger(0);
3673	>	AtomicReference<Throwable> r = new AtomicReference<>();
3674	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3675	>	checkIncomplete(f);
3676	>	CFException ex = new CFException();
3677	>	f.completeExceptionally(ex);
3678	>	checkCompletedExceptionally(f, ex);
3679	>	assertEquals(x.get(), 0);
3680	>	assertEquals(r.get().getCause(), ex);
3681	>	}
3682	>
3683	>	/**
3684	>	* failedStage returns a CompletionStage completed
3685	>	* exceptionally with the given Exception
3686	>	*/
3687	>	public void testFailedStage() {
3688	>	CFException ex = new CFException();
3689	>	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3690	>	AtomicInteger x = new AtomicInteger(0);
3691	>	AtomicReference<Throwable> r = new AtomicReference<>();
3692	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3693	>	assertEquals(x.get(), 0);
3694	>	assertEquals(r.get(), ex);
3695	>	}
3696	>
3697	>	/**
3698	>	* completeAsync completes with value of given supplier
3699	>	*/
3700	>	public void testCompleteAsync() {
3701	>	for (Integer v1 : new Integer[] { 1, null })
3702	>	{
3703	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3704	>	f.completeAsync(() -> v1);
3705	>	f.join();
3706	>	checkCompletedNormally(f, v1);
3707	>	}}
3708	>
3709	>	/**
3710	>	* completeAsync completes exceptionally if given supplier throws
3711	>	*/
3712	>	public void testCompleteAsync2() {
3713	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3714	>	CFException ex = new CFException();
3715	>	f.completeAsync(() -> { throw ex; });
3716	>	try {
3717	>	f.join();
3718	>	shouldThrow();
3719	>	} catch (CompletionException success) {}
3720	>	checkCompletedWithWrappedException(f, ex);
3721	>	}
3722	>
3723	>	/**
3724	>	* completeAsync with given executor completes with value of given supplier
3725	>	*/
3726	>	public void testCompleteAsync3() {
3727	>	for (Integer v1 : new Integer[] { 1, null })
3728	>	{
3729	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3730	>	ThreadExecutor executor = new ThreadExecutor();
3731	>	f.completeAsync(() -> v1, executor);
3732	>	assertSame(v1, f.join());
3733	>	checkCompletedNormally(f, v1);
3734	>	assertEquals(1, executor.count.get());
3735	>	}}
3736	>
3737	>	/**
3738	>	* completeAsync with given executor completes exceptionally if
3739	>	* given supplier throws
3740	>	*/
3741	>	public void testCompleteAsync4() {
3742	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3743	>	CFException ex = new CFException();
3744	>	ThreadExecutor executor = new ThreadExecutor();
3745	>	f.completeAsync(() -> { throw ex; }, executor);
3746	>	try {
3747	>	f.join();
3748	>	shouldThrow();
3749	>	} catch (CompletionException success) {}
3750	>	checkCompletedWithWrappedException(f, ex);
3751	>	assertEquals(1, executor.count.get());
3752	>	}
3753	>
3754	>	/**
3755	>	* orTimeout completes with TimeoutException if not complete
3756	>	*/
3757	>	public void testOrTimeout_timesOut() {
3758	>	long timeoutMillis = timeoutMillis();
3759	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3760	>	long startTime = System.nanoTime();
3761	>	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3762	>	checkCompletedWithTimeoutException(f);
3763	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3764	>	}
3765	>
3766	>	/**
3767	>	* orTimeout completes normally if completed before timeout
3768	>	*/
3769	>	public void testOrTimeout_completed() {
3770	>	for (Integer v1 : new Integer[] { 1, null })
3771	>	{
3772	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3773	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3774	>	long startTime = System.nanoTime();
3775	>	f.complete(v1);
3776	>	assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3777	>	assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3778	>	g.complete(v1);
3779	>	checkCompletedNormally(f, v1);
3780	>	checkCompletedNormally(g, v1);
3781	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3782	>	}}
3783	>
3784	>	/**
3785	>	* completeOnTimeout completes with given value if not complete
3786	>	*/
3787	>	public void testCompleteOnTimeout_timesOut() {
3788	>	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3789	>	() -> testCompleteOnTimeout_timesOut(null));
3790	>	}
3791	>
3792	>	/**
3793	>	* completeOnTimeout completes with given value if not complete
3794	>	*/
3795	>	public void testCompleteOnTimeout_timesOut(Integer v) {
3796	>	long timeoutMillis = timeoutMillis();
3797	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3798	>	long startTime = System.nanoTime();
3799	>	assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS));
3800	>	assertSame(v, f.join());
3801	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3802	>	f.complete(99);         // should have no effect
3803	>	checkCompletedNormally(f, v);
3804	>	}
3805	>
3806	>	/**
3807	>	* completeOnTimeout has no effect if completed within timeout
3808	>	*/
3809	>	public void testCompleteOnTimeout_completed() {
3810	>	for (Integer v1 : new Integer[] { 1, null })
3811	>	{
3812	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3813	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3814	>	long startTime = System.nanoTime();
3815	>	f.complete(v1);
3816	>	assertSame(f, f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3817	>	assertSame(g, g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3818	>	g.complete(v1);
3819	>	checkCompletedNormally(f, v1);
3820	>	checkCompletedNormally(g, v1);
3821	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3822	>	}}
3823	>
3824	>	/**
3825	>	* delayedExecutor returns an executor that delays submission
3826	>	*/
3827	>	public void testDelayedExecutor() {
3828	>	testInParallel(() -> testDelayedExecutor(null, null),
3829	>	() -> testDelayedExecutor(null, 1),
3830	>	() -> testDelayedExecutor(new ThreadExecutor(), 1),
3831	>	() -> testDelayedExecutor(new ThreadExecutor(), 1));
3832	>	}
3833	>
3834	>	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
3835	>	long timeoutMillis = timeoutMillis();
3836	>	// Use an "unreasonably long" long timeout to catch lingering threads
3837	>	long longTimeoutMillis = 1000 * 60 * 60 * 24;
3838	>	final Executor delayer, longDelayer;
3839	>	if (executor == null) {
3840	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
3841	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
3842	>	} else {
3843	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
3844	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
3845	>	}
3846	>	long startTime = System.nanoTime();
3847	>	CompletableFuture<Integer> f =
3848	>	CompletableFuture.supplyAsync(() -> v, delayer);
3849	>	CompletableFuture<Integer> g =
3850	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
3851	>
3852	>	assertNull(g.getNow(null));
3853	>
3854	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
3855	>	long millisElapsed = millisElapsedSince(startTime);
3856	>	assertTrue(millisElapsed >= timeoutMillis);
3857	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
3858	>
3859	>	checkCompletedNormally(f, v);
3860	>
3861	>	checkIncomplete(g);
3862	>	assertTrue(g.cancel(true));
3863	>	}
3864	>
3865	>	//--- tests of implementation details; not part of official tck ---
3866	>
3867	>	Object resultOf(CompletableFuture<?> f) {
3868	>	SecurityManager sm = System.getSecurityManager();
3869	>	if (sm != null) {
3870	>	try {
3871	>	System.setSecurityManager(null);
3872	>	} catch (SecurityException giveUp) {
3873	>	return "Reflection not available";
3874	>	}
3875	>	}
3876	>
3877	>	try {
3878	>	java.lang.reflect.Field resultField
3879	>	= CompletableFuture.class.getDeclaredField("result");
3880	>	resultField.setAccessible(true);
3881	>	return resultField.get(f);
3882	>	} catch (Throwable t) {
3883	>	throw new AssertionError(t);
3884	>	} finally {
3885	>	if (sm != null) System.setSecurityManager(sm);
3886	>	}
3887	>	}
3888	>
3889	>	public void testExceptionPropagationReusesResultObject() {
3890	>	if (!testImplementationDetails) return;
3891	>	for (ExecutionMode m : ExecutionMode.values())
3892	>	{
3893	>	final CFException ex = new CFException();
3894	>	final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
3895	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3896	>
3897	>	final Runnable noopRunnable = new Noop(m);
3898	>	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
3899	>	final Function<Integer, Integer> incFunction = new IncFunction(m);
3900	>
3901	>	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
3902	>	= new ArrayList<>();
3903	>
3904	>	funs.add(y -> m.thenRun(y, noopRunnable));
3905	>	funs.add(y -> m.thenAccept(y, noopConsumer));
3906	>	funs.add(y -> m.thenApply(y, incFunction));
3907	>
3908	>	funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable));
3909	>	funs.add(y -> m.acceptEither(y, incomplete, noopConsumer));
3910	>	funs.add(y -> m.applyToEither(y, incomplete, incFunction));
3911	>
3912	>	funs.add(y -> m.runAfterBoth(y, v42, noopRunnable));
3913	>	funs.add(y -> m.runAfterBoth(v42, y, noopRunnable));
3914	>	funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3915	>	funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
3916	>	funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m)));
3917	>	funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m)));
3918	>
3919	>	funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
3920	>
3921	>	funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m)));
3922	>
3923	>	funs.add(y -> CompletableFuture.allOf(y));
3924	>	funs.add(y -> CompletableFuture.allOf(y, v42));
3925	>	funs.add(y -> CompletableFuture.allOf(v42, y));
3926	>	funs.add(y -> CompletableFuture.anyOf(y));
3927	>	funs.add(y -> CompletableFuture.anyOf(y, incomplete));
3928	>	funs.add(y -> CompletableFuture.anyOf(incomplete, y));
3929	>
3930	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3931	>	fun : funs) {
3932	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3933	>	f.completeExceptionally(ex);
3934	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3935	>	checkCompletedWithWrappedException(src, ex);
3936	>	CompletableFuture<?> dep = fun.apply(src);
3937	>	checkCompletedWithWrappedException(dep, ex);
3938	>	assertSame(resultOf(src), resultOf(dep));
3939	>	}
3940	>
3941	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3942	>	fun : funs) {
3943	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3944	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3945	>	CompletableFuture<?> dep = fun.apply(src);
3946	>	f.completeExceptionally(ex);
3947	>	checkCompletedWithWrappedException(src, ex);
3948	>	checkCompletedWithWrappedException(dep, ex);
3949	>	assertSame(resultOf(src), resultOf(dep));
3950	>	}
3951	>
3952	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3953	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3954	>	fun : funs) {
3955	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3956	>	f.cancel(mayInterruptIfRunning);
3957	>	checkCancelled(f);
3958	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3959	>	checkCompletedWithWrappedCancellationException(src);
3960	>	CompletableFuture<?> dep = fun.apply(src);
3961	>	checkCompletedWithWrappedCancellationException(dep);
3962	>	assertSame(resultOf(src), resultOf(dep));
3963	>	}
3964	>
3965	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3966	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3967	>	fun : funs) {
3968	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3969	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3970	>	CompletableFuture<?> dep = fun.apply(src);
3971	>	f.cancel(mayInterruptIfRunning);
3972	>	checkCancelled(f);
3973	>	checkCompletedWithWrappedCancellationException(src);
3974	>	checkCompletedWithWrappedCancellationException(dep);
3975	>	assertSame(resultOf(src), resultOf(dep));
3976	>	}
3977	>	}}
3978	>
3979	>	/**
3980	>	* Minimal completion stages throw UOE for most non-CompletionStage methods
3981	>	*/
3982	>	public void testMinimalCompletionStage_minimality() {
3983	>	if (!testImplementationDetails) return;
3984	>	Function<Method, String> toSignature =
3985	>	method -> method.getName() + Arrays.toString(method.getParameterTypes());
3986	>	Predicate<Method> isNotStatic =
3987	>	method -> (method.getModifiers() & Modifier.STATIC) == 0;
3988	>	List<Method> minimalMethods =
3989	>	Stream.of(Object.class, CompletionStage.class)
3990	>	.flatMap(klazz -> Stream.of(klazz.getMethods()))
3991	>	.filter(isNotStatic)
3992	>	.collect(Collectors.toList());
3993	>	// Methods from CompletableFuture permitted NOT to throw UOE
3994	>	String[] signatureWhitelist = {
3995	>	"newIncompleteFuture[]",
3996	>	"defaultExecutor[]",
3997	>	"minimalCompletionStage[]",
3998	>	"copy[]",
3999	>	};
4000	>	Set<String> permittedMethodSignatures =
4001	>	Stream.concat(minimalMethods.stream().map(toSignature),
4002	>	Stream.of(signatureWhitelist))
4003	>	.collect(Collectors.toSet());
4004	>	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
4005	>	.filter(isNotStatic)
4006	>	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4007	>	.collect(Collectors.toList());
4008	>
4009	>	List<CompletionStage<Integer>> stages = new ArrayList<>();
4010	>	CompletionStage<Integer> min =
4011	>	new CompletableFuture<Integer>().minimalCompletionStage();
4012	>	stages.add(min);
4013	>	stages.add(min.thenApply(x -> x));
4014	>	stages.add(CompletableFuture.completedStage(1));
4015	>	stages.add(CompletableFuture.failedStage(new CFException()));
4016	>
4017	>	List<Method> bugs = new ArrayList<>();
4018	>	for (Method method : allMethods) {
4019	>	Class<?>[] parameterTypes = method.getParameterTypes();
4020	>	Object[] args = new Object[parameterTypes.length];
4021	>	// Manufacture boxed primitives for primitive params
4022	>	for (int i = 0; i < args.length; i++) {
4023	>	Class<?> type = parameterTypes[i];
4024	>	if (parameterTypes[i] == boolean.class)
4025	>	args[i] = false;
4026	>	else if (parameterTypes[i] == int.class)
4027	>	args[i] = 0;
4028	>	else if (parameterTypes[i] == long.class)
4029	>	args[i] = 0L;
4030	>	}
4031	>	for (CompletionStage<Integer> stage : stages) {
4032	>	try {
4033	>	method.invoke(stage, args);
4034	>	bugs.add(method);
4035	>	}
4036	>	catch (java.lang.reflect.InvocationTargetException expected) {
4037	>	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4038	>	bugs.add(method);
4039	>	// expected.getCause().printStackTrace();
4040	>	}
4041	>	}
4042	>	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4043	>	}
4044	>	}
4045	>	if (!bugs.isEmpty())
4046	>	throw new Error("Methods did not throw UOE: " + bugs);
4047	>	}
4048	>
4049	>	/**
4050	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4051	>	* is completed normally, with the same value, when source is.
4052	>	*/
4053	>	public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() {
4054	>	for (boolean createIncomplete : new boolean[] { true, false })
4055	>	for (Integer v1 : new Integer[] { 1, null })
4056	>	{
4057	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4058	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4059	>	if (!createIncomplete) assertTrue(f.complete(v1));
4060	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4061	>	if (createIncomplete) {
4062	>	checkIncomplete(f);
4063	>	checkIncomplete(g);
4064	>	assertTrue(f.complete(v1));
4065	>	}
4066	>	checkCompletedNormally(f, v1);
4067	>	checkCompletedNormally(g, v1);
4068	>	}}
4069	>
4070	>	/**
4071	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4072	>	* is completed exceptionally when source is.
4073	>	*/
4074	>	public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() {
4075	>	for (boolean createIncomplete : new boolean[] { true, false })
4076	>	{
4077	>	CFException ex = new CFException();
4078	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4079	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4080	>	if (!createIncomplete) f.completeExceptionally(ex);
4081	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4082	>	if (createIncomplete) {
4083	>	checkIncomplete(f);
4084	>	checkIncomplete(g);
4085	>	f.completeExceptionally(ex);
4086	>	}
4087	>	checkCompletedExceptionally(f, ex);
4088	>	checkCompletedWithWrappedException(g, ex);
4089	>	}}
4090	>
4091	>	/**
4092	>	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4093	>	*/
4094	>	public void testMinimalCompletionStage_toCompletableFuture_mutable() {
4095	>	for (Integer v1 : new Integer[] { 1, null })
4096	>	{
4097	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4098	>	CompletionStage minimal = f.minimalCompletionStage();
4099	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4100	>	assertTrue(g.complete(v1));
4101	>	checkCompletedNormally(g, v1);
4102	>	checkIncomplete(f);
4103	>	checkIncomplete(minimal.toCompletableFuture());
4104	>	}}
4105	>
4106	>	/**
4107	>	* minimalStage.toCompletableFuture().join() awaits completion
4108	>	*/
4109	>	public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception {
4110	>	for (boolean createIncomplete : new boolean[] { true, false })
4111	>	for (Integer v1 : new Integer[] { 1, null })
4112	>	{
4113	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4114	>	if (!createIncomplete) assertTrue(f.complete(v1));
4115	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4116	>	if (createIncomplete) assertTrue(f.complete(v1));
4117	>	assertEquals(v1, minimal.toCompletableFuture().join());
4118	>	assertEquals(v1, minimal.toCompletableFuture().get());
4119	>	checkCompletedNormally(minimal.toCompletableFuture(), v1);
4120	>	}}
4121	>
4122	>	/**
4123	>	* Completion of a toCompletableFuture copy of a minimal stage
4124	>	* does not complete its source.
4125	>	*/
4126	>	public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() {
4127	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4128	>	CompletionStage<Integer> g = f.minimalCompletionStage();
4129	>	assertTrue(g.toCompletableFuture().complete(1));
4130	>	assertTrue(g.toCompletableFuture().complete(null));
4131	>	assertTrue(g.toCompletableFuture().cancel(true));
4132	>	assertTrue(g.toCompletableFuture().cancel(false));
4133	>	assertTrue(g.toCompletableFuture().completeExceptionally(new CFException()));
4134	>	checkIncomplete(g.toCompletableFuture());
4135	>	f.complete(1);
4136	>	checkCompletedNormally(g.toCompletableFuture(), 1);
4137	>	}
4138	>
4139	>	/** Demo utility method for external reliable toCompletableFuture */
4140	>	static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) {
4141	>	CompletableFuture<T> f = new CompletableFuture<>();
4142	>	stage.handle((T t, Throwable ex) -> {
4143	>	if (ex != null) f.completeExceptionally(ex);
4144	>	else f.complete(t);
4145	>	return null;
4146	>	});
4147	>	return f;
4148	>	}
4149	>
4150	>	/** Demo utility method to join a CompletionStage */
4151	>	static <T> T join(CompletionStage<T> stage) {
4152	>	return toCompletableFuture(stage).join();
4153	>	}
4154	>
4155	>	/**
4156	>	* Joining a minimal stage "by hand" works
4157	>	*/
4158	>	public void testMinimalCompletionStage_join_by_hand() {
4159	>	for (boolean createIncomplete : new boolean[] { true, false })
4160	>	for (Integer v1 : new Integer[] { 1, null })
4161	>	{
4162	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4163	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4164	>	CompletableFuture<Integer> g = new CompletableFuture<>();
4165	>	if (!createIncomplete) assertTrue(f.complete(v1));
4166	>	minimal.thenAccept(x -> g.complete(x));
4167	>	if (createIncomplete) assertTrue(f.complete(v1));
4168	>	g.join();
4169	>	checkCompletedNormally(g, v1);
4170	>	checkCompletedNormally(f, v1);
4171	>	assertEquals(v1, join(minimal));
4172	>	}}
4173	>
4174	>	static class Monad {
4175	>	static class ZeroException extends RuntimeException {
4176	>	public ZeroException() { super("monadic zero"); }
4177	>	}
4178	>	// "return", "unit"
4179	>	static <T> CompletableFuture<T> unit(T value) {
4180	>	return completedFuture(value);
4181	>	}
4182	>	// monadic zero ?
4183	>	static <T> CompletableFuture<T> zero() {
4184	>	return failedFuture(new ZeroException());
4185	>	}
4186	>	// >=>
4187	>	static <T,U,V> Function<T, CompletableFuture<V>> compose
4188	>	(Function<T, CompletableFuture<U>> f,
4189	>	Function<U, CompletableFuture<V>> g) {
4190	>	return x -> f.apply(x).thenCompose(g);
4191	>	}
4192	>
4193	>	static void assertZero(CompletableFuture<?> f) {
4194	>	try {
4195	>	f.getNow(null);
4196	>	throw new AssertionError("should throw");
4197	>	} catch (CompletionException success) {
4198	>	assertTrue(success.getCause() instanceof ZeroException);
4199	>	}
4200	>	}
4201	>
4202	>	static <T> void assertFutureEquals(CompletableFuture<T> f,
4203	>	CompletableFuture<T> g) {
4204	>	T fval = null, gval = null;
4205	>	Throwable fex = null, gex = null;
4206	>
4207	>	try { fval = f.get(); }
4208	>	catch (ExecutionException ex) { fex = ex.getCause(); }
4209	>	catch (Throwable ex) { fex = ex; }
4210	>
4211	>	try { gval = g.get(); }
4212	>	catch (ExecutionException ex) { gex = ex.getCause(); }
4213	>	catch (Throwable ex) { gex = ex; }
4214	>
4215	>	if (fex != null || gex != null)
4216	>	assertSame(fex.getClass(), gex.getClass());
4217	>	else
4218	>	assertEquals(fval, gval);
4219	>	}
4220	>
4221	>	static class PlusFuture<T> extends CompletableFuture<T> {
4222	>	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4223	>	}
4224	>
4225	>	/** Implements "monadic plus". */
4226	>	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
4227	>	CompletableFuture<? extends T> g) {
4228	>	PlusFuture<T> plus = new PlusFuture<T>();
4229	>	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
4230	>	try {
4231	>	if (ex == null) {
4232	>	if (plus.complete(result))
4233	>	if (plus.firstFailure.get() != null)
4234	>	plus.firstFailure.set(null);
4235	>	}
4236	>	else if (plus.firstFailure.compareAndSet(null, ex)) {
4237	>	if (plus.isDone())
4238	>	plus.firstFailure.set(null);
4239	>	}
4240	>	else {
4241	>	// first failure has precedence
4242	>	Throwable first = plus.firstFailure.getAndSet(null);
4243	>
4244	>	// may fail with "Self-suppression not permitted"
4245	>	try { first.addSuppressed(ex); }
4246	>	catch (Exception ignored) {}
4247	>
4248	>	plus.completeExceptionally(first);
4249	>	}
4250	>	} catch (Throwable unexpected) {
4251	>	plus.completeExceptionally(unexpected);
4252	>	}
4253	>	};
4254	>	f.whenComplete(action);
4255	>	g.whenComplete(action);
4256	>	return plus;
4257	>	}
4258	>	}
4259	>
4260	>	/**
4261	>	* CompletableFuture is an additive monad - sort of.
4262	>	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
4263	>	*/
4264	>	public void testAdditiveMonad() throws Throwable {
4265	>	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
4266	>	CompletableFuture<Long> zero = Monad.zero();
4267	>
4268	>	// Some mutually non-commutative functions
4269	>	Function<Long, CompletableFuture<Long>> triple
4270	>	= x -> Monad.unit(3 * x);
4271	>	Function<Long, CompletableFuture<Long>> inc
4272	>	= x -> Monad.unit(x + 1);
4273	>
4274	>	// unit is a right identity: m >>= unit === m
4275	>	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
4276	>	inc.apply(5L));
4277	>	// unit is a left identity: (unit x) >>= f === f x
4278	>	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
4279	>	inc.apply(5L));
4280	>
4281	>	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4282	>	Monad.assertFutureEquals(
4283	>	unit.apply(5L).thenCompose(inc).thenCompose(triple),
4284	>	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4285	>
4286	>	// The case for CompletableFuture as an additive monad is weaker...
4287	>
4288	>	// zero is a monadic zero
4289	>	Monad.assertZero(zero);
4290	>
4291	>	// left zero: zero >>= f === zero
4292	>	Monad.assertZero(zero.thenCompose(inc));
4293	>	// right zero: f >>= (\x -> zero) === zero
4294	>	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4295	>
4296	>	// f plus zero === f
4297	>	Monad.assertFutureEquals(Monad.unit(5L),
4298	>	Monad.plus(Monad.unit(5L), zero));
4299	>	// zero plus f === f
4300	>	Monad.assertFutureEquals(Monad.unit(5L),
4301	>	Monad.plus(zero, Monad.unit(5L)));
4302	>	// zero plus zero === zero
4303	>	Monad.assertZero(Monad.plus(zero, zero));
4304	>	{
4305	>	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
4306	>	Monad.unit(8L));
4307	>	// non-determinism
4308	>	assertTrue(f.get() == 5L || f.get() == 8L);
4309	>	}
4310	>
4311	>	CompletableFuture<Long> godot = new CompletableFuture<>();
4312	>	// f plus godot === f (doesn't wait for godot)
4313	>	Monad.assertFutureEquals(Monad.unit(5L),
4314	>	Monad.plus(Monad.unit(5L), godot));
4315	>	// godot plus f === f (doesn't wait for godot)
4316	>	Monad.assertFutureEquals(Monad.unit(5L),
4317	>	Monad.plus(godot, Monad.unit(5L)));
4318	>	}
4319	>
4320	>	/** Test long recursive chains of CompletableFutures with cascading completions */
4321	>	@SuppressWarnings("FutureReturnValueIgnored")
4322	>	public void testRecursiveChains() throws Throwable {
4323	>	for (ExecutionMode m : ExecutionMode.values())
4324	>	for (boolean addDeadEnds : new boolean[] { true, false })
4325	>	{
4326	>	final int val = 42;
4327	>	final int n = expensiveTests ? 1_000 : 2;
4328	>	CompletableFuture<Integer> head = new CompletableFuture<>();
4329	>	CompletableFuture<Integer> tail = head;
4330	>	for (int i = 0; i < n; i++) {
4331	>	if (addDeadEnds) m.thenApply(tail, v -> v + 1);
4332	>	tail = m.thenApply(tail, v -> v + 1);
4333	>	if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1);
4334	>	tail = m.applyToEither(tail, tail, v -> v + 1);
4335	>	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1);
4336	>	tail = m.thenCombine(tail, tail, (v, w) -> v + 1);
4337	>	}
4338	>	head.complete(val);
4339	>	assertEquals(val + 3 * n, (int) tail.join());
4340	>	}}
4341	>
4342	>	/**
4343	>	* A single CompletableFuture with many dependents.
4344	>	* A demo of scalability - runtime is O(n).
4345	>	*/
4346	>	@SuppressWarnings("FutureReturnValueIgnored")
4347	>	public void testManyDependents() throws Throwable {
4348	>	final int n = expensiveTests ? 1_000_000 : 10;
4349	>	final CompletableFuture<Void> head = new CompletableFuture<>();
4350	>	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4351	>	final AtomicInteger count = new AtomicInteger(0);
4352	>	for (int i = 0; i < n; i++) {
4353	>	head.thenRun(() -> count.getAndIncrement());
4354	>	head.thenAccept(x -> count.getAndIncrement());
4355	>	head.thenApply(x -> count.getAndIncrement());
4356	>
4357	>	head.runAfterBoth(complete, () -> count.getAndIncrement());
4358	>	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
4359	>	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
4360	>	complete.runAfterBoth(head, () -> count.getAndIncrement());
4361	>	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
4362	>	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4363	>
4364	>	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4365	>	head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4366	>	head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4367	>	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4368	>	new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement());
4369	>	new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement());
4370	>	}
4371	>	head.complete(null);
4372	>	assertEquals(5 * 3 * n, count.get());
4373	>	}
4374	>
4375	>	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4376	>	@SuppressWarnings("FutureReturnValueIgnored")
4377	>	public void testCoCompletionGarbageRetention() throws Throwable {
4378	>	final int n = expensiveTests ? 1_000_000 : 10;
4379	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4380	>	CompletableFuture<Integer> f;
4381	>	for (int i = 0; i < n; i++) {
4382	>	f = new CompletableFuture<>();
4383	>	f.runAfterEither(incomplete, () -> {});
4384	>	f.complete(null);
4385	>
4386	>	f = new CompletableFuture<>();
4387	>	f.acceptEither(incomplete, x -> {});
4388	>	f.complete(null);
4389	>
4390	>	f = new CompletableFuture<>();
4391	>	f.applyToEither(incomplete, x -> x);
4392	>	f.complete(null);
4393	>
4394	>	f = new CompletableFuture<>();
4395	>	CompletableFuture.anyOf(f, incomplete);
4396	>	f.complete(null);
4397	>	}
4398	>
4399	>	for (int i = 0; i < n; i++) {
4400	>	f = new CompletableFuture<>();
4401	>	incomplete.runAfterEither(f, () -> {});
4402	>	f.complete(null);
4403	>
4404	>	f = new CompletableFuture<>();
4405	>	incomplete.acceptEither(f, x -> {});
4406	>	f.complete(null);
4407	>
4408	>	f = new CompletableFuture<>();
4409	>	incomplete.applyToEither(f, x -> x);
4410	>	f.complete(null);
4411	>
4412	>	f = new CompletableFuture<>();
4413	>	CompletableFuture.anyOf(incomplete, f);
4414	>	f.complete(null);
4415	>	}
4416	>	}
4417	>
4418	>	/**
4419	>	* Reproduction recipe for:
4420	>	* 8160402: Garbage retention with CompletableFuture.anyOf
4421	>	* 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
4422	>	*/
4423	>	public void testAnyOfGarbageRetention() throws Throwable {
4424	>	for (Integer v : new Integer[] { 1, null })
4425	>	{
4426	>	final int n = expensiveTests ? 100_000 : 10;
4427	>	CompletableFuture<Integer>[] fs
4428	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4429	>	for (int i = 0; i < fs.length; i++)
4430	>	fs[i] = new CompletableFuture<>();
4431	>	fs[fs.length - 1].complete(v);
4432	>	for (int i = 0; i < n; i++)
4433	>	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4434	>	}}
4435	>
4436	>	/**
4437	>	* Checks for garbage retention with allOf.
4438	>	*
4439	>	* As of 2016-07, fails with OOME:
4440	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4441	>	*/
4442	>	public void testCancelledAllOfGarbageRetention() throws Throwable {
4443	>	final int n = expensiveTests ? 100_000 : 10;
4444	>	CompletableFuture<Integer>[] fs
4445	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4446	>	for (int i = 0; i < fs.length; i++)
4447	>	fs[i] = new CompletableFuture<>();
4448	>	for (int i = 0; i < n; i++)
4449	>	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4450	>	}
4451	>
4452	>	/**
4453	>	* Checks for garbage retention when a dependent future is
4454	>	* cancelled and garbage-collected.
4455	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4456	>	*
4457	>	* As of 2016-07, fails with OOME:
4458	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4459	>	*/
4460	>	public void testCancelledGarbageRetention() throws Throwable {
4461	>	final int n = expensiveTests ? 100_000 : 10;
4462	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4463	>	for (int i = 0; i < n; i++)
4464	>	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4465	>	}
4466	>
4467	>	/**
4468	>	* Checks for garbage retention when MinimalStage.toCompletableFuture()
4469	>	* is invoked many times.
4470	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4471	>	*
4472	>	* As of 2016-07, fails with OOME:
4473	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck
4474	>	*/
4475	>	public void testToCompletableFutureGarbageRetention() throws Throwable {
4476	>	final int n = expensiveTests ? 900_000 : 10;
4477	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4478	>	CompletionStage minimal = neverCompleted.minimalCompletionStage();
4479	>	for (int i = 0; i < n; i++)
4480	>	assertTrue(minimal.toCompletableFuture().cancel(true));
4481	>	}
4482	>
4483	>	//     static <U> U join(CompletionStage<U> stage) {
4484	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4485	>	//         stage.whenComplete((v, ex) -> {
4486	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4487	>	//         });
4488	>	//         return f.join();
4489	>	//     }
4490	>
4491	>	//     static <U> boolean isDone(CompletionStage<U> stage) {
4492	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4493	>	//         stage.whenComplete((v, ex) -> {
4494	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4495	>	//         });
4496	>	//         return f.isDone();
4497	>	//     }
4498	>
4499	>	//     static <U> U join2(CompletionStage<U> stage) {
4500	>	//         return stage.toCompletableFuture().copy().join();
4501	>	//     }
4502	>
4503	>	//     static <U> boolean isDone2(CompletionStage<U> stage) {
4504	>	//         return stage.toCompletableFuture().copy().isDone();
4505	>	//     }
4506
4507		}

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