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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 1.197 by jsr166, Sun Jul 22 22:08:49 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) {}
74		catch (Throwable fail) { threadUnexpectedException(fail); }
75		}
76
77	<	<T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
78	<	try {
79	<	assertEquals(value, f.get(LONG_DELAY_MS, MILLISECONDS));
80	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
81	<	try {
82	<	assertEquals(value, f.join());
83	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
66	<	try {
67	<	assertEquals(value, f.getNow(null));
68	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
77	>	<T> void checkCompletedNormally(CompletableFuture<T> f, T expectedValue) {
78	>	checkTimedGet(f, expectedValue);
79	>
80	>	assertEquals(expectedValue, f.join());
81	>	assertEquals(expectedValue, f.getNow(null));
82	>
83	>	T result = null;
84		try {
85	<	assertEquals(value, f.get());
85	>	result = f.get();
86		} catch (Throwable fail) { threadUnexpectedException(fail); }
87	+	assertEquals(expectedValue, result);
88	+
89		assertTrue(f.isDone());
90		assertFalse(f.isCancelled());
91		assertFalse(f.isCompletedExceptionally());
92	<	assertTrue(f.toString().contains("[Completed normally]"));
92	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
93		}
94
95	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
96	<	try {
97	<	f.get(LONG_DELAY_MS, MILLISECONDS);
98	<	shouldThrow();
99	<	} catch (ExecutionException success) {
100	<	assertTrue(success.getCause() instanceof CFException);
101	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
102	<	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]"));
95	>	/**
96	>	* Returns the "raw" internal exceptional completion of f,
97	>	* without any additional wrapping with CompletionException.
98	>	*/
99	>	Throwable exceptionalCompletion(CompletableFuture<?> f) {
100	>	// handle (and whenComplete and exceptionally) can distinguish
101	>	// between "direct" and "wrapped" exceptional completion
102	>	return f.handle((u, t) -> t).join();
103		}
104
105	<	<U> void checkCompletedExceptionallyWithRootCause(CompletableFuture<U> f,
106	<	Throwable ex) {
105	>	void checkCompletedExceptionally(CompletableFuture<?> f,
106	>	boolean wrapped,
107	>	Consumer<Throwable> checker) {
108	>	Throwable cause = exceptionalCompletion(f);
109	>	if (wrapped) {
110	>	assertTrue(cause instanceof CompletionException);
111	>	cause = cause.getCause();
112	>	}
113	>	checker.accept(cause);
114	>
115	>	long startTime = System.nanoTime();
116		try {
117		f.get(LONG_DELAY_MS, MILLISECONDS);
118		shouldThrow();
119		} catch (ExecutionException success) {
120	<	assertSame(ex, success.getCause());
120	>	assertSame(cause, success.getCause());
121		} catch (Throwable fail) { threadUnexpectedException(fail); }
122	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
123	+
124		try {
125		f.join();
126		shouldThrow();
127		} catch (CompletionException success) {
128	<	assertSame(ex, success.getCause());
129	<	}
128	>	assertSame(cause, success.getCause());
129	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
130	>
131		try {
132		f.getNow(null);
133		shouldThrow();
134		} catch (CompletionException success) {
135	<	assertSame(ex, success.getCause());
136	<	}
135	>	assertSame(cause, success.getCause());
136	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
137	>
138		try {
139		f.get();
140		shouldThrow();
141		} catch (ExecutionException success) {
142	<	assertSame(ex, success.getCause());
142	>	assertSame(cause, success.getCause());
143		} catch (Throwable fail) { threadUnexpectedException(fail); }
144
135	–	assertTrue(f.isDone());
145		assertFalse(f.isCancelled());
146	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
146	>	assertTrue(f.isDone());
147	>	assertTrue(f.isCompletedExceptionally());
148	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
149		}
150
151	<	<U> void checkCompletedWithWrappedException(CompletableFuture<U> f,
152	<	Throwable ex) {
153	<	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); }
151	>	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
152	>	checkCompletedExceptionally(f, true,
153	>	t -> assertTrue(t instanceof CFException));
154		}
155
156	<	<U> void checkCompletedExceptionally(CompletableFuture<U> f, Throwable ex) {
157	<	checkCompletedExceptionallyWithRootCause(f, ex);
158	<	try {
159	<	CompletableFuture<Throwable> spy = f.handle
160	<	((U u, Throwable t) -> t);
161	<	assertSame(ex, spy.join());
162	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
156	>	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
157	>	checkCompletedExceptionally(f, true,
158	>	t -> assertTrue(t instanceof CancellationException));
159	>	}
160	>
161	>	void checkCompletedWithTimeoutException(CompletableFuture<?> f) {
162	>	checkCompletedExceptionally(f, false,
163	>	t -> assertTrue(t instanceof TimeoutException));
164	>	}
165	>
166	>	void checkCompletedWithWrappedException(CompletableFuture<?> f,
167	>	Throwable ex) {
168	>	checkCompletedExceptionally(f, true, t -> assertSame(t, ex));
169	>	}
170	>
171	>	void checkCompletedExceptionally(CompletableFuture<?> f, Throwable ex) {
172	>	checkCompletedExceptionally(f, false, t -> assertSame(t, ex));
173		}
174
175		void checkCancelled(CompletableFuture<?> f) {
176	+	long startTime = System.nanoTime();
177		try {
178		f.get(LONG_DELAY_MS, MILLISECONDS);
179		shouldThrow();
180		} catch (CancellationException success) {
181		} catch (Throwable fail) { threadUnexpectedException(fail); }
182	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
183	+
184		try {
185		f.join();
186		shouldThrow();
#	Line 176 | Line 194 | public class CompletableFutureTest exten
194		shouldThrow();
195		} catch (CancellationException success) {
196		} 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	–	}
197
198	<	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
199	<	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); }
198	>	assertTrue(exceptionalCompletion(f) instanceof CancellationException);
199	>
200		assertTrue(f.isDone());
211	–	assertFalse(f.isCancelled());
201		assertTrue(f.isCompletedExceptionally());
202	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
202	>	assertTrue(f.isCancelled());
203	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
204		}
205
206		/**
#	Line 257 | Line 247 | public class CompletableFutureTest exten
247		{
248		CompletableFuture<Integer> f = new CompletableFuture<>();
249		checkIncomplete(f);
250	<	assertTrue(f.cancel(true));
251	<	assertTrue(f.cancel(true));
250	>	assertTrue(f.cancel(mayInterruptIfRunning));
251	>	assertTrue(f.cancel(mayInterruptIfRunning));
252	>	assertTrue(f.cancel(!mayInterruptIfRunning));
253		checkCancelled(f);
254		}}
255
#	Line 308 | Line 299 | public class CompletableFutureTest exten
299		}
300
301		f = new CompletableFuture<>();
302	<	f.completeExceptionally(ex = new CFException());
302	>	f.completeExceptionally(new CFException());
303		f.obtrudeValue(v1);
304		checkCompletedNormally(f, v1);
305		f.obtrudeException(ex = new CFException());
#	Line 345 | Line 336 | public class CompletableFutureTest exten
336		/**
337		* toString indicates current completion state
338		*/
339	<	public void testToString() {
340	<	CompletableFuture<String> f;
341	<
342	<	f = new CompletableFuture<String>();
343	<	assertTrue(f.toString().contains("[Not completed]"));
339	>	public void testToString_incomplete() {
340	>	CompletableFuture<String> f = new CompletableFuture<>();
341	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
342	>	if (testImplementationDetails)
343	>	assertEquals(identityString(f) + "[Not completed]",
344	>	f.toString());
345	>	}
346
347	+	public void testToString_normal() {
348	+	CompletableFuture<String> f = new CompletableFuture<>();
349		assertTrue(f.complete("foo"));
350	<	assertTrue(f.toString().contains("[Completed normally]"));
350	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
351	>	if (testImplementationDetails)
352	>	assertEquals(identityString(f) + "[Completed normally]",
353	>	f.toString());
354	>	}
355
356	<	f = new CompletableFuture<String>();
356	>	public void testToString_exception() {
357	>	CompletableFuture<String> f = new CompletableFuture<>();
358		assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
359	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
359	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
360	>	if (testImplementationDetails)
361	>	assertTrue(f.toString().startsWith(
362	>	identityString(f) + "[Completed exceptionally: "));
363	>	}
364
365	+	public void testToString_cancelled() {
366		for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
367	<	f = new CompletableFuture<String>();
367	>	CompletableFuture<String> f = new CompletableFuture<>();
368		assertTrue(f.cancel(mayInterruptIfRunning));
369	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
369	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
370	>	if (testImplementationDetails)
371	>	assertTrue(f.toString().startsWith(
372	>	identityString(f) + "[Completed exceptionally: "));
373		}
374		}
375
#	Line 373 | Line 381 | public class CompletableFutureTest exten
381		checkCompletedNormally(f, "test");
382		}
383
384	<	abstract class CheckedAction {
384	>	abstract static class CheckedAction {
385		int invocationCount = 0;
386		final ExecutionMode m;
387		CheckedAction(ExecutionMode m) { this.m = m; }
#	Line 385 | Line 393 | public class CompletableFutureTest exten
393		void assertInvoked() { assertEquals(1, invocationCount); }
394		}
395
396	<	abstract class CheckedIntegerAction extends CheckedAction {
396	>	abstract static class CheckedIntegerAction extends CheckedAction {
397		Integer value;
398		CheckedIntegerAction(ExecutionMode m) { super(m); }
399		void assertValue(Integer expected) {
#	Line 394 | Line 402 | public class CompletableFutureTest exten
402		}
403		}
404
405	<	class IntegerSupplier extends CheckedAction
405	>	static class IntegerSupplier extends CheckedAction
406		implements Supplier<Integer>
407		{
408		final Integer value;
#	Line 413 | Line 421 | public class CompletableFutureTest exten
421		return (x == null) ? null : x + 1;
422		}
423
424	<	class NoopConsumer extends CheckedIntegerAction
424	>	static class NoopConsumer extends CheckedIntegerAction
425		implements Consumer<Integer>
426		{
427		NoopConsumer(ExecutionMode m) { super(m); }
#	Line 423 | Line 431 | public class CompletableFutureTest exten
431		}
432		}
433
434	<	class IncFunction extends CheckedIntegerAction
434	>	static class IncFunction extends CheckedIntegerAction
435		implements Function<Integer,Integer>
436		{
437		IncFunction(ExecutionMode m) { super(m); }
#	Line 441 | Line 449 | public class CompletableFutureTest exten
449		- ((y == null) ? 99 : y.intValue());
450		}
451
452	<	class SubtractAction extends CheckedIntegerAction
452	>	static class SubtractAction extends CheckedIntegerAction
453		implements BiConsumer<Integer, Integer>
454		{
455		SubtractAction(ExecutionMode m) { super(m); }
#	Line 451 | Line 459 | public class CompletableFutureTest exten
459		}
460		}
461
462	<	class SubtractFunction extends CheckedIntegerAction
462	>	static class SubtractFunction extends CheckedIntegerAction
463		implements BiFunction<Integer, Integer, Integer>
464		{
465		SubtractFunction(ExecutionMode m) { super(m); }
#	Line 461 | Line 469 | public class CompletableFutureTest exten
469		}
470		}
471
472	<	class Noop extends CheckedAction implements Runnable {
472	>	static class Noop extends CheckedAction implements Runnable {
473		Noop(ExecutionMode m) { super(m); }
474		public void run() {
475		invoked();
476		}
477		}
478
479	<	class FailingSupplier extends CheckedAction
479	>	static class FailingSupplier extends CheckedAction
480		implements Supplier<Integer>
481		{
482	<	FailingSupplier(ExecutionMode m) { super(m); }
482	>	final CFException ex;
483	>	FailingSupplier(ExecutionMode m) { super(m); ex = new CFException(); }
484		public Integer get() {
485		invoked();
486	<	throw new CFException();
486	>	throw ex;
487		}
488		}
489
490	<	class FailingConsumer extends CheckedIntegerAction
490	>	static class FailingConsumer extends CheckedIntegerAction
491		implements Consumer<Integer>
492		{
493	<	FailingConsumer(ExecutionMode m) { super(m); }
493	>	final CFException ex;
494	>	FailingConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
495		public void accept(Integer x) {
496		invoked();
497		value = x;
498	<	throw new CFException();
498	>	throw ex;
499		}
500		}
501
502	<	class FailingBiConsumer extends CheckedIntegerAction
502	>	static class FailingBiConsumer extends CheckedIntegerAction
503		implements BiConsumer<Integer, Integer>
504		{
505	<	FailingBiConsumer(ExecutionMode m) { super(m); }
505	>	final CFException ex;
506	>	FailingBiConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
507		public void accept(Integer x, Integer y) {
508		invoked();
509		value = subtract(x, y);
510	<	throw new CFException();
510	>	throw ex;
511		}
512		}
513
514	<	class FailingFunction extends CheckedIntegerAction
514	>	static class FailingFunction extends CheckedIntegerAction
515		implements Function<Integer, Integer>
516		{
517	<	FailingFunction(ExecutionMode m) { super(m); }
517	>	final CFException ex;
518	>	FailingFunction(ExecutionMode m) { super(m); ex = new CFException(); }
519		public Integer apply(Integer x) {
520		invoked();
521		value = x;
522	<	throw new CFException();
522	>	throw ex;
523		}
524		}
525
526	<	class FailingBiFunction extends CheckedIntegerAction
526	>	static class FailingBiFunction extends CheckedIntegerAction
527		implements BiFunction<Integer, Integer, Integer>
528		{
529	<	FailingBiFunction(ExecutionMode m) { super(m); }
529	>	final CFException ex;
530	>	FailingBiFunction(ExecutionMode m) { super(m); ex = new CFException(); }
531		public Integer apply(Integer x, Integer y) {
532		invoked();
533		value = subtract(x, y);
534	<	throw new CFException();
534	>	throw ex;
535		}
536		}
537
538	<	class FailingRunnable extends CheckedAction implements Runnable {
539	<	FailingRunnable(ExecutionMode m) { super(m); }
538	>	static class FailingRunnable extends CheckedAction implements Runnable {
539	>	final CFException ex;
540	>	FailingRunnable(ExecutionMode m) { super(m); ex = new CFException(); }
541		public void run() {
542		invoked();
543	<	throw new CFException();
543	>	throw ex;
544		}
545		}
546
547	<
534	<	class CompletableFutureInc extends CheckedIntegerAction
547	>	static class CompletableFutureInc extends CheckedIntegerAction
548		implements Function<Integer, CompletableFuture<Integer>>
549		{
550		CompletableFutureInc(ExecutionMode m) { super(m); }
#	Line 544 | Line 557 | public class CompletableFutureTest exten
557		}
558		}
559
560	<	class FailingCompletableFutureFunction extends CheckedIntegerAction
560	>	static class FailingCompletableFutureFunction extends CheckedIntegerAction
561		implements Function<Integer, CompletableFuture<Integer>>
562		{
563	<	FailingCompletableFutureFunction(ExecutionMode m) { super(m); }
563	>	final CFException ex;
564	>	FailingCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
565		public CompletableFuture<Integer> apply(Integer x) {
566		invoked();
567		value = x;
568	<	throw new CFException();
568	>	throw ex;
569	>	}
570	>	}
571	>
572	>	static class CountingRejectingExecutor implements Executor {
573	>	final RejectedExecutionException ex = new RejectedExecutionException();
574	>	final AtomicInteger count = new AtomicInteger(0);
575	>	public void execute(Runnable r) {
576	>	count.getAndIncrement();
577	>	throw ex;
578		}
579		}
580
#	Line 569 | Line 592 | public class CompletableFutureTest exten
592		}
593		}
594
595	+	static final boolean defaultExecutorIsCommonPool
596	+	= ForkJoinPool.getCommonPoolParallelism() > 1;
597	+
598		/**
599		* Permits the testing of parallel code for the 3 different
600		* execution modes without copy/pasting all the test methods.
601		*/
602		enum ExecutionMode {
603	<	DEFAULT {
603	>	SYNC {
604		public void checkExecutionMode() {
605		assertFalse(ThreadExecutor.startedCurrentThread());
606		assertNull(ForkJoinTask.getPool());
#	Line 650 | Line 676 | public class CompletableFutureTest exten
676
677		ASYNC {
678		public void checkExecutionMode() {
679	<	assertSame(ForkJoinPool.commonPool(),
680	<	ForkJoinTask.getPool());
679	>	assertEquals(defaultExecutorIsCommonPool,
680	>	(ForkJoinPool.commonPool() == ForkJoinTask.getPool()));
681		}
682		public CompletableFuture<Void> runAsync(Runnable a) {
683		return CompletableFuture.runAsync(a);
#	Line 850 | Line 876 | public class CompletableFutureTest exten
876		if (!createIncomplete) assertTrue(f.complete(v1));
877		final CompletableFuture<Integer> g = f.exceptionally
878		((Throwable t) -> {
853	–	// Should not be called
879		a.getAndIncrement();
880	<	throw new AssertionError();
880	>	threadFail("should not be called");
881	>	return null;            // unreached
882		});
883		if (createIncomplete) assertTrue(f.complete(v1));
884
#	Line 875 | Line 901 | public class CompletableFutureTest exten
901		if (!createIncomplete) f.completeExceptionally(ex);
902		final CompletableFuture<Integer> g = f.exceptionally
903		((Throwable t) -> {
904	<	ExecutionMode.DEFAULT.checkExecutionMode();
904	>	ExecutionMode.SYNC.checkExecutionMode();
905		threadAssertSame(t, ex);
906		a.getAndIncrement();
907		return v1;
#	Line 886 | Line 912 | public class CompletableFutureTest exten
912		assertEquals(1, a.get());
913		}}
914
915	+	/**
916	+	* If an "exceptionally action" throws an exception, it completes
917	+	* exceptionally with that exception
918	+	*/
919		public void testExceptionally_exceptionalCompletionActionFailed() {
920		for (boolean createIncomplete : new boolean[] { true, false })
891	–	for (Integer v1 : new Integer[] { 1, null })
921		{
922		final AtomicInteger a = new AtomicInteger(0);
923		final CFException ex1 = new CFException();
#	Line 897 | Line 926 | public class CompletableFutureTest exten
926		if (!createIncomplete) f.completeExceptionally(ex1);
927		final CompletableFuture<Integer> g = f.exceptionally
928		((Throwable t) -> {
929	<	ExecutionMode.DEFAULT.checkExecutionMode();
929	>	ExecutionMode.SYNC.checkExecutionMode();
930		threadAssertSame(t, ex1);
931		a.getAndIncrement();
932		throw ex2;
#	Line 905 | Line 934 | public class CompletableFutureTest exten
934		if (createIncomplete) f.completeExceptionally(ex1);
935
936		checkCompletedWithWrappedException(g, ex2);
937	+	checkCompletedExceptionally(f, ex1);
938		assertEquals(1, a.get());
939		}}
940
#	Line 912 | Line 942 | public class CompletableFutureTest exten
942		* whenComplete action executes on normal completion, propagating
943		* source result.
944		*/
945	<	public void testWhenComplete_normalCompletion1() {
945	>	public void testWhenComplete_normalCompletion() {
946		for (ExecutionMode m : ExecutionMode.values())
947		for (boolean createIncomplete : new boolean[] { true, false })
948		for (Integer v1 : new Integer[] { 1, null })
#	Line 922 | Line 952 | public class CompletableFutureTest exten
952		if (!createIncomplete) assertTrue(f.complete(v1));
953		final CompletableFuture<Integer> g = m.whenComplete
954		(f,
955	<	(Integer x, Throwable t) -> {
955	>	(Integer result, Throwable t) -> {
956		m.checkExecutionMode();
957	<	threadAssertSame(x, v1);
957	>	threadAssertSame(result, v1);
958		threadAssertNull(t);
959		a.getAndIncrement();
960		});
#	Line 942 | Line 972 | public class CompletableFutureTest exten
972		public void testWhenComplete_exceptionalCompletion() {
973		for (ExecutionMode m : ExecutionMode.values())
974		for (boolean createIncomplete : new boolean[] { true, false })
945	–	for (Integer v1 : new Integer[] { 1, null })
975		{
976		final AtomicInteger a = new AtomicInteger(0);
977		final CFException ex = new CFException();
#	Line 950 | Line 979 | public class CompletableFutureTest exten
979		if (!createIncomplete) f.completeExceptionally(ex);
980		final CompletableFuture<Integer> g = m.whenComplete
981		(f,
982	<	(Integer x, Throwable t) -> {
982	>	(Integer result, Throwable t) -> {
983		m.checkExecutionMode();
984	<	threadAssertNull(x);
984	>	threadAssertNull(result);
985		threadAssertSame(t, ex);
986		a.getAndIncrement();
987		});
#	Line 977 | Line 1006 | public class CompletableFutureTest exten
1006		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1007		final CompletableFuture<Integer> g = m.whenComplete
1008		(f,
1009	<	(Integer x, Throwable t) -> {
1009	>	(Integer result, Throwable t) -> {
1010		m.checkExecutionMode();
1011	<	threadAssertNull(x);
1011	>	threadAssertNull(result);
1012		threadAssertTrue(t instanceof CancellationException);
1013		a.getAndIncrement();
1014		});
#	Line 994 | Line 1023 | public class CompletableFutureTest exten
1023		* If a whenComplete action throws an exception when triggered by
1024		* a normal completion, it completes exceptionally
1025		*/
1026	<	public void testWhenComplete_actionFailed() {
1026	>	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
1027		for (boolean createIncomplete : new boolean[] { true, false })
1028		for (ExecutionMode m : ExecutionMode.values())
1029		for (Integer v1 : new Integer[] { 1, null })
#	Line 1005 | Line 1034 | public class CompletableFutureTest exten
1034		if (!createIncomplete) assertTrue(f.complete(v1));
1035		final CompletableFuture<Integer> g = m.whenComplete
1036		(f,
1037	<	(Integer x, Throwable t) -> {
1037	>	(Integer result, Throwable t) -> {
1038		m.checkExecutionMode();
1039	<	threadAssertSame(x, v1);
1039	>	threadAssertSame(result, v1);
1040		threadAssertNull(t);
1041		a.getAndIncrement();
1042		throw ex;
#	Line 1022 | Line 1051 | public class CompletableFutureTest exten
1051		/**
1052		* If a whenComplete action throws an exception when triggered by
1053		* a source completion that also throws an exception, the source
1054	<	* exception takes precedence.
1054	>	* exception takes precedence (unlike handle)
1055		*/
1056	<	public void testWhenComplete_actionFailedSourceFailed() {
1056	>	public void testWhenComplete_sourceFailedActionFailed() {
1057		for (boolean createIncomplete : new boolean[] { true, false })
1058		for (ExecutionMode m : ExecutionMode.values())
1030	–	for (Integer v1 : new Integer[] { 1, null })
1059		{
1060		final AtomicInteger a = new AtomicInteger(0);
1061		final CFException ex1 = new CFException();
#	Line 1037 | Line 1065 | public class CompletableFutureTest exten
1065		if (!createIncomplete) f.completeExceptionally(ex1);
1066		final CompletableFuture<Integer> g = m.whenComplete
1067		(f,
1068	<	(Integer x, Throwable t) -> {
1068	>	(Integer result, Throwable t) -> {
1069		m.checkExecutionMode();
1070		threadAssertSame(t, ex1);
1071	<	threadAssertNull(x);
1071	>	threadAssertNull(result);
1072		a.getAndIncrement();
1073		throw ex2;
1074		});
#	Line 1048 | Line 1076 | public class CompletableFutureTest exten
1076
1077		checkCompletedWithWrappedException(g, ex1);
1078		checkCompletedExceptionally(f, ex1);
1079	+	if (testImplementationDetails) {
1080	+	assertEquals(1, ex1.getSuppressed().length);
1081	+	assertSame(ex2, ex1.getSuppressed()[0]);
1082	+	}
1083		assertEquals(1, a.get());
1084		}}
1085
#	Line 1065 | Line 1097 | public class CompletableFutureTest exten
1097		if (!createIncomplete) assertTrue(f.complete(v1));
1098		final CompletableFuture<Integer> g = m.handle
1099		(f,
1100	<	(Integer x, Throwable t) -> {
1100	>	(Integer result, Throwable t) -> {
1101		m.checkExecutionMode();
1102	<	threadAssertSame(x, v1);
1102	>	threadAssertSame(result, v1);
1103		threadAssertNull(t);
1104		a.getAndIncrement();
1105		return inc(v1);
#	Line 1094 | Line 1126 | public class CompletableFutureTest exten
1126		if (!createIncomplete) f.completeExceptionally(ex);
1127		final CompletableFuture<Integer> g = m.handle
1128		(f,
1129	<	(Integer x, Throwable t) -> {
1129	>	(Integer result, Throwable t) -> {
1130		m.checkExecutionMode();
1131	<	threadAssertNull(x);
1131	>	threadAssertNull(result);
1132		threadAssertSame(t, ex);
1133		a.getAndIncrement();
1134		return v1;
#	Line 1123 | Line 1155 | public class CompletableFutureTest exten
1155		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1156		final CompletableFuture<Integer> g = m.handle
1157		(f,
1158	<	(Integer x, Throwable t) -> {
1158	>	(Integer result, Throwable t) -> {
1159		m.checkExecutionMode();
1160	<	threadAssertNull(x);
1160	>	threadAssertNull(result);
1161		threadAssertTrue(t instanceof CancellationException);
1162		a.getAndIncrement();
1163		return v1;
#	Line 1138 | Line 1170 | public class CompletableFutureTest exten
1170		}}
1171
1172		/**
1173	<	* handle result completes exceptionally if action does
1173	>	* If a "handle action" throws an exception when triggered by
1174	>	* a normal completion, it completes exceptionally
1175		*/
1176	<	public void testHandle_sourceFailedActionFailed() {
1176	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1177		for (ExecutionMode m : ExecutionMode.values())
1178		for (boolean createIncomplete : new boolean[] { true, false })
1179	+	for (Integer v1 : new Integer[] { 1, null })
1180		{
1181		final CompletableFuture<Integer> f = new CompletableFuture<>();
1182		final AtomicInteger a = new AtomicInteger(0);
1183	<	final CFException ex1 = new CFException();
1184	<	final CFException ex2 = new CFException();
1151	<	if (!createIncomplete) f.completeExceptionally(ex1);
1183	>	final CFException ex = new CFException();
1184	>	if (!createIncomplete) assertTrue(f.complete(v1));
1185		final CompletableFuture<Integer> g = m.handle
1186		(f,
1187	<	(Integer x, Throwable t) -> {
1187	>	(Integer result, Throwable t) -> {
1188		m.checkExecutionMode();
1189	<	threadAssertNull(x);
1190	<	threadAssertSame(ex1, t);
1189	>	threadAssertSame(result, v1);
1190	>	threadAssertNull(t);
1191		a.getAndIncrement();
1192	<	throw ex2;
1192	>	throw ex;
1193		});
1194	<	if (createIncomplete) f.completeExceptionally(ex1);
1194	>	if (createIncomplete) assertTrue(f.complete(v1));
1195
1196	<	checkCompletedWithWrappedException(g, ex2);
1197	<	checkCompletedExceptionally(f, ex1);
1196	>	checkCompletedWithWrappedException(g, ex);
1197	>	checkCompletedNormally(f, v1);
1198		assertEquals(1, a.get());
1199		}}
1200
1201	<	public void testHandle_sourceCompletedNormallyActionFailed() {
1202	<	for (ExecutionMode m : ExecutionMode.values())
1201	>	/**
1202	>	* If a "handle action" throws an exception when triggered by
1203	>	* a source completion that also throws an exception, the action
1204	>	* exception takes precedence (unlike whenComplete)
1205	>	*/
1206	>	public void testHandle_sourceFailedActionFailed() {
1207		for (boolean createIncomplete : new boolean[] { true, false })
1208	<	for (Integer v1 : new Integer[] { 1, null })
1208	>	for (ExecutionMode m : ExecutionMode.values())
1209		{
1173	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
1210		final AtomicInteger a = new AtomicInteger(0);
1211	<	final CFException ex = new CFException();
1212	<	if (!createIncomplete) assertTrue(f.complete(v1));
1211	>	final CFException ex1 = new CFException();
1212	>	final CFException ex2 = new CFException();
1213	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1214	>
1215	>	if (!createIncomplete) f.completeExceptionally(ex1);
1216		final CompletableFuture<Integer> g = m.handle
1217		(f,
1218	<	(Integer x, Throwable t) -> {
1218	>	(Integer result, Throwable t) -> {
1219		m.checkExecutionMode();
1220	<	threadAssertSame(x, v1);
1221	<	threadAssertNull(t);
1220	>	threadAssertNull(result);
1221	>	threadAssertSame(ex1, t);
1222		a.getAndIncrement();
1223	<	throw ex;
1223	>	throw ex2;
1224		});
1225	<	if (createIncomplete) assertTrue(f.complete(v1));
1225	>	if (createIncomplete) f.completeExceptionally(ex1);
1226
1227	<	checkCompletedWithWrappedException(g, ex);
1228	<	checkCompletedNormally(f, v1);
1227	>	checkCompletedWithWrappedException(g, ex2);
1228	>	checkCompletedExceptionally(f, ex1);
1229		assertEquals(1, a.get());
1230		}}
1231
#	Line 1219 | Line 1258 | public class CompletableFutureTest exten
1258		{
1259		final FailingRunnable r = new FailingRunnable(m);
1260		final CompletableFuture<Void> f = m.runAsync(r);
1261	<	checkCompletedWithWrappedCFException(f);
1261	>	checkCompletedWithWrappedException(f, r.ex);
1262		r.assertInvoked();
1263		}}
1264
1265	+	@SuppressWarnings("FutureReturnValueIgnored")
1266	+	public void testRunAsync_rejectingExecutor() {
1267	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1268	+	try {
1269	+	CompletableFuture.runAsync(() -> {}, e);
1270	+	shouldThrow();
1271	+	} catch (Throwable t) {
1272	+	assertSame(e.ex, t);
1273	+	}
1274	+
1275	+	assertEquals(1, e.count.get());
1276	+	}
1277	+
1278		/**
1279		* supplyAsync completes with result of supplier
1280		*/
#	Line 1253 | Line 1305 | public class CompletableFutureTest exten
1305		{
1306		FailingSupplier r = new FailingSupplier(m);
1307		CompletableFuture<Integer> f = m.supplyAsync(r);
1308	<	checkCompletedWithWrappedCFException(f);
1308	>	checkCompletedWithWrappedException(f, r.ex);
1309		r.assertInvoked();
1310		}}
1311
1312	+	@SuppressWarnings("FutureReturnValueIgnored")
1313	+	public void testSupplyAsync_rejectingExecutor() {
1314	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1315	+	try {
1316	+	CompletableFuture.supplyAsync(() -> null, e);
1317	+	shouldThrow();
1318	+	} catch (Throwable t) {
1319	+	assertSame(e.ex, t);
1320	+	}
1321	+
1322	+	assertEquals(1, e.count.get());
1323	+	}
1324	+
1325		// seq completion methods
1326
1327		/**
#	Line 1264 | Line 1329 | public class CompletableFutureTest exten
1329		*/
1330		public void testThenRun_normalCompletion() {
1331		for (ExecutionMode m : ExecutionMode.values())
1267	–	for (boolean createIncomplete : new boolean[] { true, false })
1332		for (Integer v1 : new Integer[] { 1, null })
1333		{
1334		final CompletableFuture<Integer> f = new CompletableFuture<>();
1335	<	final Noop r = new Noop(m);
1336	<	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	<	}
1335	>	final Noop[] rs = new Noop[6];
1336	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1337
1338	<	checkCompletedNormally(g, null);
1338	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1339	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1340	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1341	>	checkIncomplete(h0);
1342	>	checkIncomplete(h1);
1343	>	checkIncomplete(h2);
1344	>	assertTrue(f.complete(v1));
1345	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1346	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1347	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1348	>
1349	>	checkCompletedNormally(h0, null);
1350	>	checkCompletedNormally(h1, null);
1351	>	checkCompletedNormally(h2, null);
1352	>	checkCompletedNormally(h3, null);
1353	>	checkCompletedNormally(h4, null);
1354	>	checkCompletedNormally(h5, null);
1355		checkCompletedNormally(f, v1);
1356	<	r.assertInvoked();
1356	>	for (Noop r : rs) r.assertInvoked();
1357		}}
1358
1359		/**
#	Line 1287 | Line 1362 | public class CompletableFutureTest exten
1362		*/
1363		public void testThenRun_exceptionalCompletion() {
1364		for (ExecutionMode m : ExecutionMode.values())
1290	–	for (boolean createIncomplete : new boolean[] { true, false })
1365		{
1366		final CFException ex = new CFException();
1367		final CompletableFuture<Integer> f = new CompletableFuture<>();
1368	<	final Noop r = new Noop(m);
1369	<	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	<	}
1368	>	final Noop[] rs = new Noop[6];
1369	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1370
1371	<	checkCompletedWithWrappedException(g, ex);
1371	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1372	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1373	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1374	>	checkIncomplete(h0);
1375	>	checkIncomplete(h1);
1376	>	checkIncomplete(h2);
1377	>	assertTrue(f.completeExceptionally(ex));
1378	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1379	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1380	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1381	>
1382	>	checkCompletedWithWrappedException(h0, ex);
1383	>	checkCompletedWithWrappedException(h1, ex);
1384	>	checkCompletedWithWrappedException(h2, ex);
1385	>	checkCompletedWithWrappedException(h3, ex);
1386	>	checkCompletedWithWrappedException(h4, ex);
1387	>	checkCompletedWithWrappedException(h5, ex);
1388		checkCompletedExceptionally(f, ex);
1389	<	r.assertNotInvoked();
1389	>	for (Noop r : rs) r.assertNotInvoked();
1390		}}
1391
1392		/**
#	Line 1309 | Line 1394 | public class CompletableFutureTest exten
1394		*/
1395		public void testThenRun_sourceCancelled() {
1396		for (ExecutionMode m : ExecutionMode.values())
1312	–	for (boolean createIncomplete : new boolean[] { true, false })
1397		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1398		{
1399		final CompletableFuture<Integer> f = new CompletableFuture<>();
1400	<	final Noop r = new Noop(m);
1401	<	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	<	}
1400	>	final Noop[] rs = new Noop[6];
1401	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1402
1403	<	checkCompletedWithWrappedCancellationException(g);
1403	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1404	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1405	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1406	>	checkIncomplete(h0);
1407	>	checkIncomplete(h1);
1408	>	checkIncomplete(h2);
1409	>	assertTrue(f.cancel(mayInterruptIfRunning));
1410	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1411	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1412	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1413	>
1414	>	checkCompletedWithWrappedCancellationException(h0);
1415	>	checkCompletedWithWrappedCancellationException(h1);
1416	>	checkCompletedWithWrappedCancellationException(h2);
1417	>	checkCompletedWithWrappedCancellationException(h3);
1418	>	checkCompletedWithWrappedCancellationException(h4);
1419	>	checkCompletedWithWrappedCancellationException(h5);
1420		checkCancelled(f);
1421	<	r.assertNotInvoked();
1421	>	for (Noop r : rs) r.assertNotInvoked();
1422		}}
1423
1424		/**
#	Line 1331 | Line 1426 | public class CompletableFutureTest exten
1426		*/
1427		public void testThenRun_actionFailed() {
1428		for (ExecutionMode m : ExecutionMode.values())
1334	–	for (boolean createIncomplete : new boolean[] { true, false })
1429		for (Integer v1 : new Integer[] { 1, null })
1430		{
1431		final CompletableFuture<Integer> f = new CompletableFuture<>();
1432	<	final FailingRunnable r = new FailingRunnable(m);
1433	<	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	<	}
1432	>	final FailingRunnable[] rs = new FailingRunnable[6];
1433	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1434
1435	<	checkCompletedWithWrappedCFException(g);
1435	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1436	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1437	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1438	>	assertTrue(f.complete(v1));
1439	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1440	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1441	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1442	>
1443	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1444	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1445	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1446	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1447	>	checkCompletedWithWrappedException(h4, rs[4].ex);
1448	>	checkCompletedWithWrappedException(h5, rs[5].ex);
1449		checkCompletedNormally(f, v1);
1450		}}
1451
#	Line 1352 | Line 1454 | public class CompletableFutureTest exten
1454		*/
1455		public void testThenApply_normalCompletion() {
1456		for (ExecutionMode m : ExecutionMode.values())
1355	–	for (boolean createIncomplete : new boolean[] { true, false })
1457		for (Integer v1 : new Integer[] { 1, null })
1458		{
1459		final CompletableFuture<Integer> f = new CompletableFuture<>();
1460	<	final IncFunction r = new IncFunction(m);
1461	<	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	<	}
1460	>	final IncFunction[] rs = new IncFunction[4];
1461	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1462
1463	<	checkCompletedNormally(g, inc(v1));
1463	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1464	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1465	>	checkIncomplete(h0);
1466	>	checkIncomplete(h1);
1467	>	assertTrue(f.complete(v1));
1468	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1469	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1470	>
1471	>	checkCompletedNormally(h0, inc(v1));
1472	>	checkCompletedNormally(h1, inc(v1));
1473	>	checkCompletedNormally(h2, inc(v1));
1474	>	checkCompletedNormally(h3, inc(v1));
1475		checkCompletedNormally(f, v1);
1476	<	r.assertValue(inc(v1));
1476	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1477		}}
1478
1479		/**
#	Line 1375 | Line 1482 | public class CompletableFutureTest exten
1482		*/
1483		public void testThenApply_exceptionalCompletion() {
1484		for (ExecutionMode m : ExecutionMode.values())
1378	–	for (boolean createIncomplete : new boolean[] { true, false })
1485		{
1486		final CFException ex = new CFException();
1487		final CompletableFuture<Integer> f = new CompletableFuture<>();
1488	<	final IncFunction r = new IncFunction(m);
1489	<	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	<	}
1488	>	final IncFunction[] rs = new IncFunction[4];
1489	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1490
1491	<	checkCompletedWithWrappedException(g, ex);
1491	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1492	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1493	>	assertTrue(f.completeExceptionally(ex));
1494	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1495	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1496	>
1497	>	checkCompletedWithWrappedException(h0, ex);
1498	>	checkCompletedWithWrappedException(h1, ex);
1499	>	checkCompletedWithWrappedException(h2, ex);
1500	>	checkCompletedWithWrappedException(h3, ex);
1501		checkCompletedExceptionally(f, ex);
1502	<	r.assertNotInvoked();
1502	>	for (IncFunction r : rs) r.assertNotInvoked();
1503		}}
1504
1505		/**
#	Line 1397 | Line 1507 | public class CompletableFutureTest exten
1507		*/
1508		public void testThenApply_sourceCancelled() {
1509		for (ExecutionMode m : ExecutionMode.values())
1400	–	for (boolean createIncomplete : new boolean[] { true, false })
1510		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1511		{
1512		final CompletableFuture<Integer> f = new CompletableFuture<>();
1513	<	final IncFunction r = new IncFunction(m);
1514	<	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	<	}
1513	>	final IncFunction[] rs = new IncFunction[4];
1514	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1515
1516	<	checkCompletedWithWrappedCancellationException(g);
1516	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1517	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1518	>	assertTrue(f.cancel(mayInterruptIfRunning));
1519	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1520	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1521	>
1522	>	checkCompletedWithWrappedCancellationException(h0);
1523	>	checkCompletedWithWrappedCancellationException(h1);
1524	>	checkCompletedWithWrappedCancellationException(h2);
1525	>	checkCompletedWithWrappedCancellationException(h3);
1526		checkCancelled(f);
1527	<	r.assertNotInvoked();
1527	>	for (IncFunction r : rs) r.assertNotInvoked();
1528		}}
1529
1530		/**
#	Line 1419 | Line 1532 | public class CompletableFutureTest exten
1532		*/
1533		public void testThenApply_actionFailed() {
1534		for (ExecutionMode m : ExecutionMode.values())
1422	–	for (boolean createIncomplete : new boolean[] { true, false })
1535		for (Integer v1 : new Integer[] { 1, null })
1536		{
1537		final CompletableFuture<Integer> f = new CompletableFuture<>();
1538	<	final FailingFunction r = new FailingFunction(m);
1539	<	if (!createIncomplete) assertTrue(f.complete(v1));
1540	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1541	<	if (createIncomplete) {
1542	<	checkIncomplete(g);
1543	<	assertTrue(f.complete(v1));
1544	<	}
1538	>	final FailingFunction[] rs = new FailingFunction[4];
1539	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1540	>
1541	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1542	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1543	>	assertTrue(f.complete(v1));
1544	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1545	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1546
1547	<	checkCompletedWithWrappedCFException(g);
1547	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1548	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1549	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1550	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1551		checkCompletedNormally(f, v1);
1552		}}
1553
#	Line 1440 | Line 1556 | public class CompletableFutureTest exten
1556		*/
1557		public void testThenAccept_normalCompletion() {
1558		for (ExecutionMode m : ExecutionMode.values())
1443	–	for (boolean createIncomplete : new boolean[] { true, false })
1559		for (Integer v1 : new Integer[] { 1, null })
1560		{
1561		final CompletableFuture<Integer> f = new CompletableFuture<>();
1562	<	final NoopConsumer r = new NoopConsumer(m);
1563	<	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	<	}
1562	>	final NoopConsumer[] rs = new NoopConsumer[4];
1563	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1564
1565	<	checkCompletedNormally(g, null);
1566	<	r.assertValue(v1);
1565	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1566	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1567	>	checkIncomplete(h0);
1568	>	checkIncomplete(h1);
1569	>	assertTrue(f.complete(v1));
1570	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1571	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1572	>
1573	>	checkCompletedNormally(h0, null);
1574	>	checkCompletedNormally(h1, null);
1575	>	checkCompletedNormally(h2, null);
1576	>	checkCompletedNormally(h3, null);
1577		checkCompletedNormally(f, v1);
1578	+	for (NoopConsumer r : rs) r.assertValue(v1);
1579		}}
1580
1581		/**
#	Line 1463 | Line 1584 | public class CompletableFutureTest exten
1584		*/
1585		public void testThenAccept_exceptionalCompletion() {
1586		for (ExecutionMode m : ExecutionMode.values())
1466	–	for (boolean createIncomplete : new boolean[] { true, false })
1587		{
1588		final CFException ex = new CFException();
1589		final CompletableFuture<Integer> f = new CompletableFuture<>();
1590	<	final NoopConsumer r = new NoopConsumer(m);
1591	<	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	<	}
1590	>	final NoopConsumer[] rs = new NoopConsumer[4];
1591	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1592
1593	<	checkCompletedWithWrappedException(g, ex);
1593	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1594	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1595	>	assertTrue(f.completeExceptionally(ex));
1596	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1597	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1598	>
1599	>	checkCompletedWithWrappedException(h0, ex);
1600	>	checkCompletedWithWrappedException(h1, ex);
1601	>	checkCompletedWithWrappedException(h2, ex);
1602	>	checkCompletedWithWrappedException(h3, ex);
1603		checkCompletedExceptionally(f, ex);
1604	<	r.assertNotInvoked();
1604	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1605		}}
1606
1607		/**
#	Line 1485 | Line 1609 | public class CompletableFutureTest exten
1609		*/
1610		public void testThenAccept_sourceCancelled() {
1611		for (ExecutionMode m : ExecutionMode.values())
1488	–	for (boolean createIncomplete : new boolean[] { true, false })
1612		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1613		{
1614		final CompletableFuture<Integer> f = new CompletableFuture<>();
1615	<	final NoopConsumer r = new NoopConsumer(m);
1616	<	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	<	}
1615	>	final NoopConsumer[] rs = new NoopConsumer[4];
1616	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1617
1618	<	checkCompletedWithWrappedCancellationException(g);
1618	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1619	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1620	>	assertTrue(f.cancel(mayInterruptIfRunning));
1621	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1622	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1623	>
1624	>	checkCompletedWithWrappedCancellationException(h0);
1625	>	checkCompletedWithWrappedCancellationException(h1);
1626	>	checkCompletedWithWrappedCancellationException(h2);
1627	>	checkCompletedWithWrappedCancellationException(h3);
1628		checkCancelled(f);
1629	<	r.assertNotInvoked();
1629	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1630		}}
1631
1632		/**
#	Line 1507 | Line 1634 | public class CompletableFutureTest exten
1634		*/
1635		public void testThenAccept_actionFailed() {
1636		for (ExecutionMode m : ExecutionMode.values())
1510	–	for (boolean createIncomplete : new boolean[] { true, false })
1637		for (Integer v1 : new Integer[] { 1, null })
1638		{
1639		final CompletableFuture<Integer> f = new CompletableFuture<>();
1640	<	final FailingConsumer r = new FailingConsumer(m);
1641	<	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	<	}
1640	>	final FailingConsumer[] rs = new FailingConsumer[4];
1641	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1642
1643	<	checkCompletedWithWrappedCFException(g);
1643	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1644	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1645	>	assertTrue(f.complete(v1));
1646	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1647	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1648	>
1649	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1650	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1651	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1652	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1653		checkCompletedNormally(f, v1);
1654		}}
1655
#	Line 1535 | Line 1665 | public class CompletableFutureTest exten
1665		{
1666		final CompletableFuture<Integer> f = new CompletableFuture<>();
1667		final CompletableFuture<Integer> g = new CompletableFuture<>();
1668	<	final SubtractFunction r1 = new SubtractFunction(m);
1669	<	final SubtractFunction r2 = new SubtractFunction(m);
1540	<	final SubtractFunction r3 = new SubtractFunction(m);
1668	>	final SubtractFunction[] rs = new SubtractFunction[6];
1669	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1670
1671		final CompletableFuture<Integer> fst =  fFirst ? f : g;
1672		final CompletableFuture<Integer> snd = !fFirst ? f : g;
1673		final Integer w1 =  fFirst ? v1 : v2;
1674		final Integer w2 = !fFirst ? v1 : v2;
1675
1676	<	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1676	>	final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1677	>	final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1678		assertTrue(fst.complete(w1));
1679	<	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1680	<	checkIncomplete(h1);
1681	<	checkIncomplete(h2);
1682	<	r1.assertNotInvoked();
1683	<	r2.assertNotInvoked();
1679	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1680	>	final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1681	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1682	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1683	>	checkCompletedNormally(h1, subtract(w1, w1));
1684	>	checkCompletedNormally(h3, subtract(w1, w1));
1685	>	rs[1].assertValue(subtract(w1, w1));
1686	>	rs[3].assertValue(subtract(w1, w1));
1687		assertTrue(snd.complete(w2));
1688	<	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1688	>	final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1689
1690	<	checkCompletedNormally(h1, subtract(v1, v2));
1690	>	checkCompletedNormally(h0, subtract(v1, v2));
1691		checkCompletedNormally(h2, subtract(v1, v2));
1692	<	checkCompletedNormally(h3, subtract(v1, v2));
1693	<	r1.assertValue(subtract(v1, v2));
1694	<	r2.assertValue(subtract(v1, v2));
1695	<	r3.assertValue(subtract(v1, v2));
1692	>	checkCompletedNormally(h4, subtract(v1, v2));
1693	>	rs[0].assertValue(subtract(v1, v2));
1694	>	rs[2].assertValue(subtract(v1, v2));
1695	>	rs[4].assertValue(subtract(v1, v2));
1696	>
1697		checkCompletedNormally(f, v1);
1698		checkCompletedNormally(g, v2);
1699		}}
#	Line 1677 | Line 1811 | public class CompletableFutureTest exten
1811		assertTrue(snd.complete(w2));
1812		final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1813
1814	<	checkCompletedWithWrappedCFException(h1);
1815	<	checkCompletedWithWrappedCFException(h2);
1816	<	checkCompletedWithWrappedCFException(h3);
1814	>	checkCompletedWithWrappedException(h1, r1.ex);
1815	>	checkCompletedWithWrappedException(h2, r2.ex);
1816	>	checkCompletedWithWrappedException(h3, r3.ex);
1817	>	r1.assertInvoked();
1818	>	r2.assertInvoked();
1819	>	r3.assertInvoked();
1820		checkCompletedNormally(f, v1);
1821		checkCompletedNormally(g, v2);
1822		}}
#	Line 1838 | Line 1975 | public class CompletableFutureTest exten
1975		assertTrue(snd.complete(w2));
1976		final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1977
1978	<	checkCompletedWithWrappedCFException(h1);
1979	<	checkCompletedWithWrappedCFException(h2);
1980	<	checkCompletedWithWrappedCFException(h3);
1978	>	checkCompletedWithWrappedException(h1, r1.ex);
1979	>	checkCompletedWithWrappedException(h2, r2.ex);
1980	>	checkCompletedWithWrappedException(h3, r3.ex);
1981	>	r1.assertInvoked();
1982	>	r2.assertInvoked();
1983	>	r3.assertInvoked();
1984		checkCompletedNormally(f, v1);
1985		checkCompletedNormally(g, v2);
1986		}}
#	Line 1851 | Line 1991 | public class CompletableFutureTest exten
1991		*/
1992		public void testRunAfterBoth_normalCompletion() {
1993		for (ExecutionMode m : ExecutionMode.values())
1854	–	for (boolean createIncomplete : new boolean[] { true, false })
1994		for (boolean fFirst : new boolean[] { true, false })
1995		for (Integer v1 : new Integer[] { 1, null })
1996		for (Integer v2 : new Integer[] { 2, null })
1997		{
1998		final CompletableFuture<Integer> f = new CompletableFuture<>();
1999		final CompletableFuture<Integer> g = new CompletableFuture<>();
2000	<	final Noop r = new Noop(m);
2000	>	final Noop r1 = new Noop(m);
2001	>	final Noop r2 = new Noop(m);
2002	>	final Noop r3 = new Noop(m);
2003
2004	<	assertTrue(fFirst ? f.complete(v1) : g.complete(v2));
2005	<	if (!createIncomplete)
2006	<	assertTrue(!fFirst ? f.complete(v1) : g.complete(v2));
2007	<	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	<	}
2004	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2005	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2006	>	final Integer w1 =  fFirst ? v1 : v2;
2007	>	final Integer w2 = !fFirst ? v1 : v2;
2008
2009	<	checkCompletedNormally(h, null);
2010	<	r.assertInvoked();
2009	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2010	>	assertTrue(fst.complete(w1));
2011	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2012	>	checkIncomplete(h1);
2013	>	checkIncomplete(h2);
2014	>	r1.assertNotInvoked();
2015	>	r2.assertNotInvoked();
2016	>	assertTrue(snd.complete(w2));
2017	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2018	>
2019	>	checkCompletedNormally(h1, null);
2020	>	checkCompletedNormally(h2, null);
2021	>	checkCompletedNormally(h3, null);
2022	>	r1.assertInvoked();
2023	>	r2.assertInvoked();
2024	>	r3.assertInvoked();
2025		checkCompletedNormally(f, v1);
2026		checkCompletedNormally(g, v2);
2027		}}
#	Line 1880 | Line 2030 | public class CompletableFutureTest exten
2030		* runAfterBoth result completes exceptionally after exceptional
2031		* completion of either source
2032		*/
2033	<	public void testRunAfterBoth_exceptionalCompletion() {
2033	>	public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
2034		for (ExecutionMode m : ExecutionMode.values())
1885	–	for (boolean createIncomplete : new boolean[] { true, false })
2035		for (boolean fFirst : new boolean[] { true, false })
2036	+	for (boolean failFirst : new boolean[] { true, false })
2037		for (Integer v1 : new Integer[] { 1, null })
2038		{
2039		final CompletableFuture<Integer> f = new CompletableFuture<>();
2040		final CompletableFuture<Integer> g = new CompletableFuture<>();
2041		final CFException ex = new CFException();
2042	<	final Noop r = new Noop(m);
2042	>	final Noop r1 = new Noop(m);
2043	>	final Noop r2 = new Noop(m);
2044	>	final Noop r3 = new Noop(m);
2045
2046	<	assertTrue((fFirst ? f : g).complete(v1));
2047	<	if (!createIncomplete)
2048	<	assertTrue((!fFirst ? f : g).completeExceptionally(ex));
2049	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2050	<	if (createIncomplete) {
2051	<	checkIncomplete(h);
2052	<	assertTrue((!fFirst ? f : g).completeExceptionally(ex));
2053	<	}
2046	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2047	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2048	>	final Callable<Boolean> complete1 = failFirst ?
2049	>	() -> fst.completeExceptionally(ex) :
2050	>	() -> fst.complete(v1);
2051	>	final Callable<Boolean> complete2 = failFirst ?
2052	>	() -> snd.complete(v1) :
2053	>	() -> snd.completeExceptionally(ex);
2054
2055	<	checkCompletedWithWrappedException(h, ex);
2056	<	r.assertNotInvoked();
2057	<	checkCompletedNormally(fFirst ? f : g, v1);
2058	<	checkCompletedExceptionally(!fFirst ? f : g, ex);
2055	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2056	>	assertTrue(complete1.call());
2057	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2058	>	checkIncomplete(h1);
2059	>	checkIncomplete(h2);
2060	>	assertTrue(complete2.call());
2061	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2062	>
2063	>	checkCompletedWithWrappedException(h1, ex);
2064	>	checkCompletedWithWrappedException(h2, ex);
2065	>	checkCompletedWithWrappedException(h3, ex);
2066	>	r1.assertNotInvoked();
2067	>	r2.assertNotInvoked();
2068	>	r3.assertNotInvoked();
2069	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2070	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
2071		}}
2072
2073		/**
2074		* runAfterBoth result completes exceptionally if either source cancelled
2075		*/
2076	<	public void testRunAfterBoth_sourceCancelled() {
2076	>	public void testRunAfterBoth_sourceCancelled() throws Throwable {
2077		for (ExecutionMode m : ExecutionMode.values())
2078		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1915	–	for (boolean createIncomplete : new boolean[] { true, false })
2079		for (boolean fFirst : new boolean[] { true, false })
2080	+	for (boolean failFirst : new boolean[] { true, false })
2081		for (Integer v1 : new Integer[] { 1, null })
2082		{
2083		final CompletableFuture<Integer> f = new CompletableFuture<>();
2084		final CompletableFuture<Integer> g = new CompletableFuture<>();
2085	<	final Noop r = new Noop(m);
2085	>	final Noop r1 = new Noop(m);
2086	>	final Noop r2 = new Noop(m);
2087	>	final Noop r3 = new Noop(m);
2088
2089	<	assertTrue((fFirst ? f : g).complete(v1));
2090	<	if (!createIncomplete)
2091	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
2092	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2093	<	if (createIncomplete) {
2094	<	checkIncomplete(h);
2095	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
2096	<	}
2089	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2090	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2091	>	final Callable<Boolean> complete1 = failFirst ?
2092	>	() -> fst.cancel(mayInterruptIfRunning) :
2093	>	() -> fst.complete(v1);
2094	>	final Callable<Boolean> complete2 = failFirst ?
2095	>	() -> snd.complete(v1) :
2096	>	() -> snd.cancel(mayInterruptIfRunning);
2097
2098	<	checkCompletedWithWrappedCancellationException(h);
2099	<	checkCancelled(!fFirst ? f : g);
2100	<	r.assertNotInvoked();
2101	<	checkCompletedNormally(fFirst ? f : g, v1);
2098	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2099	>	assertTrue(complete1.call());
2100	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2101	>	checkIncomplete(h1);
2102	>	checkIncomplete(h2);
2103	>	assertTrue(complete2.call());
2104	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2105	>
2106	>	checkCompletedWithWrappedCancellationException(h1);
2107	>	checkCompletedWithWrappedCancellationException(h2);
2108	>	checkCompletedWithWrappedCancellationException(h3);
2109	>	r1.assertNotInvoked();
2110	>	r2.assertNotInvoked();
2111	>	r3.assertNotInvoked();
2112	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2113	>	checkCancelled(failFirst ? fst : snd);
2114		}}
2115
2116		/**
#	Line 1948 | Line 2126 | public class CompletableFutureTest exten
2126		final CompletableFuture<Integer> g = new CompletableFuture<>();
2127		final FailingRunnable r1 = new FailingRunnable(m);
2128		final FailingRunnable r2 = new FailingRunnable(m);
2129	+	final FailingRunnable r3 = new FailingRunnable(m);
2130	+
2131	+	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2132	+	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2133	+	final Integer w1 =  fFirst ? v1 : v2;
2134	+	final Integer w2 = !fFirst ? v1 : v2;
2135
2136	<	CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2137	<	assertTrue(fFirst ? f.complete(v1) : g.complete(v2));
2138	<	assertTrue(!fFirst ? f.complete(v1) : g.complete(v2));
2139	<	CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2136	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2137	>	assertTrue(fst.complete(w1));
2138	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2139	>	assertTrue(snd.complete(w2));
2140	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2141
2142	<	checkCompletedWithWrappedCFException(h1);
2143	<	checkCompletedWithWrappedCFException(h2);
2142	>	checkCompletedWithWrappedException(h1, r1.ex);
2143	>	checkCompletedWithWrappedException(h2, r2.ex);
2144	>	checkCompletedWithWrappedException(h3, r3.ex);
2145	>	r1.assertInvoked();
2146	>	r2.assertInvoked();
2147	>	r3.assertInvoked();
2148		checkCompletedNormally(f, v1);
2149		checkCompletedNormally(g, v2);
2150		}}
#	Line 2242 | Line 2431 | public class CompletableFutureTest exten
2431		f.complete(v1);
2432		final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2433		final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2434	<	checkCompletedWithWrappedCFException(h0);
2435	<	checkCompletedWithWrappedCFException(h1);
2436	<	checkCompletedWithWrappedCFException(h2);
2437	<	checkCompletedWithWrappedCFException(h3);
2434	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2435	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2436	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2437	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2438		for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2439
2440		g.complete(v2);
#	Line 2254 | Line 2443 | public class CompletableFutureTest exten
2443		final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2444		final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2445
2446	<	checkCompletedWithWrappedCFException(h4);
2446	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2447		assertTrue(Objects.equals(v1, rs[4].value) ||
2448		Objects.equals(v2, rs[4].value));
2449	<	checkCompletedWithWrappedCFException(h5);
2449	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2450		assertTrue(Objects.equals(v1, rs[5].value) ||
2451		Objects.equals(v2, rs[5].value));
2452
#	Line 2395 | Line 2584 | public class CompletableFutureTest exten
2584
2585		// unspecified behavior - both source completions available
2586		try {
2587	<	assertEquals(null, h0.join());
2587	>	assertNull(h0.join());
2588		rs[0].assertValue(v1);
2589		} catch (CompletionException ok) {
2590		checkCompletedWithWrappedException(h0, ex);
2591		rs[0].assertNotInvoked();
2592		}
2593		try {
2594	<	assertEquals(null, h1.join());
2594	>	assertNull(h1.join());
2595		rs[1].assertValue(v1);
2596		} catch (CompletionException ok) {
2597		checkCompletedWithWrappedException(h1, ex);
2598		rs[1].assertNotInvoked();
2599		}
2600		try {
2601	<	assertEquals(null, h2.join());
2601	>	assertNull(h2.join());
2602		rs[2].assertValue(v1);
2603		} catch (CompletionException ok) {
2604		checkCompletedWithWrappedException(h2, ex);
2605		rs[2].assertNotInvoked();
2606		}
2607		try {
2608	<	assertEquals(null, h3.join());
2608	>	assertNull(h3.join());
2609		rs[3].assertValue(v1);
2610		} catch (CompletionException ok) {
2611		checkCompletedWithWrappedException(h3, ex);
#	Line 2501 | Line 2690 | public class CompletableFutureTest exten
2690		f.complete(v1);
2691		final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2692		final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2693	<	checkCompletedWithWrappedCFException(h0);
2694	<	checkCompletedWithWrappedCFException(h1);
2695	<	checkCompletedWithWrappedCFException(h2);
2696	<	checkCompletedWithWrappedCFException(h3);
2693	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2694	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2695	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2696	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2697		for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2698
2699		g.complete(v2);
#	Line 2513 | Line 2702 | public class CompletableFutureTest exten
2702		final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2703		final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2704
2705	<	checkCompletedWithWrappedCFException(h4);
2705	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2706		assertTrue(Objects.equals(v1, rs[4].value) ||
2707		Objects.equals(v2, rs[4].value));
2708	<	checkCompletedWithWrappedCFException(h5);
2708	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2709		assertTrue(Objects.equals(v1, rs[5].value) ||
2710		Objects.equals(v2, rs[5].value));
2711
#	Line 2532 | Line 2721 | public class CompletableFutureTest exten
2721		for (ExecutionMode m : ExecutionMode.values())
2722		for (Integer v1 : new Integer[] { 1, null })
2723		for (Integer v2 : new Integer[] { 2, null })
2724	+	for (boolean pushNop : new boolean[] { true, false })
2725		{
2726		final CompletableFuture<Integer> f = new CompletableFuture<>();
2727		final CompletableFuture<Integer> g = new CompletableFuture<>();
#	Line 2544 | Line 2734 | public class CompletableFutureTest exten
2734		checkIncomplete(h1);
2735		rs[0].assertNotInvoked();
2736		rs[1].assertNotInvoked();
2737	+	if (pushNop) {          // ad hoc test of intra-completion interference
2738	+	m.thenRun(f, () -> {});
2739	+	m.thenRun(g, () -> {});
2740	+	}
2741		f.complete(v1);
2742		checkCompletedNormally(h0, null);
2743		checkCompletedNormally(h1, null);
#	Line 2650 | Line 2844 | public class CompletableFutureTest exten
2844
2845		// unspecified behavior - both source completions available
2846		try {
2847	<	assertEquals(null, h0.join());
2847	>	assertNull(h0.join());
2848		rs[0].assertInvoked();
2849		} catch (CompletionException ok) {
2850		checkCompletedWithWrappedException(h0, ex);
2851		rs[0].assertNotInvoked();
2852		}
2853		try {
2854	<	assertEquals(null, h1.join());
2854	>	assertNull(h1.join());
2855		rs[1].assertInvoked();
2856		} catch (CompletionException ok) {
2857		checkCompletedWithWrappedException(h1, ex);
2858		rs[1].assertNotInvoked();
2859		}
2860		try {
2861	<	assertEquals(null, h2.join());
2861	>	assertNull(h2.join());
2862		rs[2].assertInvoked();
2863		} catch (CompletionException ok) {
2864		checkCompletedWithWrappedException(h2, ex);
2865		rs[2].assertNotInvoked();
2866		}
2867		try {
2868	<	assertEquals(null, h3.join());
2868	>	assertNull(h3.join());
2869		rs[3].assertInvoked();
2870		} catch (CompletionException ok) {
2871		checkCompletedWithWrappedException(h3, ex);
#	Line 2756 | Line 2950 | public class CompletableFutureTest exten
2950		assertTrue(f.complete(v1));
2951		final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2952		final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2953	<	checkCompletedWithWrappedCFException(h0);
2954	<	checkCompletedWithWrappedCFException(h1);
2955	<	checkCompletedWithWrappedCFException(h2);
2956	<	checkCompletedWithWrappedCFException(h3);
2953	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2954	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2955	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2956	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2957		for (int i = 0; i < 4; i++) rs[i].assertInvoked();
2958		assertTrue(g.complete(v2));
2959		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2960		final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2961	<	checkCompletedWithWrappedCFException(h4);
2962	<	checkCompletedWithWrappedCFException(h5);
2961	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2962	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2963
2964		checkCompletedNormally(f, v1);
2965		checkCompletedNormally(g, v2);
#	Line 2826 | Line 3020 | public class CompletableFutureTest exten
3020		final CompletableFuture<Integer> g = m.thenCompose(f, r);
3021		if (createIncomplete) assertTrue(f.complete(v1));
3022
3023	<	checkCompletedWithWrappedCFException(g);
3023	>	checkCompletedWithWrappedException(g, r.ex);
3024		checkCompletedNormally(f, v1);
3025		}}
3026
#	Line 2851 | Line 3045 | public class CompletableFutureTest exten
3045		checkCancelled(f);
3046		}}
3047
3048	+	/**
3049	+	* thenCompose result completes exceptionally if the result of the action does
3050	+	*/
3051	+	public void testThenCompose_actionReturnsFailingFuture() {
3052	+	for (ExecutionMode m : ExecutionMode.values())
3053	+	for (int order = 0; order < 6; order++)
3054	+	for (Integer v1 : new Integer[] { 1, null })
3055	+	{
3056	+	final CFException ex = new CFException();
3057	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3058	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
3059	+	final CompletableFuture<Integer> h;
3060	+	// Test all permutations of orders
3061	+	switch (order) {
3062	+	case 0:
3063	+	assertTrue(f.complete(v1));
3064	+	assertTrue(g.completeExceptionally(ex));
3065	+	h = m.thenCompose(f, (x -> g));
3066	+	break;
3067	+	case 1:
3068	+	assertTrue(f.complete(v1));
3069	+	h = m.thenCompose(f, (x -> g));
3070	+	assertTrue(g.completeExceptionally(ex));
3071	+	break;
3072	+	case 2:
3073	+	assertTrue(g.completeExceptionally(ex));
3074	+	assertTrue(f.complete(v1));
3075	+	h = m.thenCompose(f, (x -> g));
3076	+	break;
3077	+	case 3:
3078	+	assertTrue(g.completeExceptionally(ex));
3079	+	h = m.thenCompose(f, (x -> g));
3080	+	assertTrue(f.complete(v1));
3081	+	break;
3082	+	case 4:
3083	+	h = m.thenCompose(f, (x -> g));
3084	+	assertTrue(f.complete(v1));
3085	+	assertTrue(g.completeExceptionally(ex));
3086	+	break;
3087	+	case 5:
3088	+	h = m.thenCompose(f, (x -> g));
3089	+	assertTrue(f.complete(v1));
3090	+	assertTrue(g.completeExceptionally(ex));
3091	+	break;
3092	+	default: throw new AssertionError();
3093	+	}
3094	+
3095	+	checkCompletedExceptionally(g, ex);
3096	+	checkCompletedWithWrappedException(h, ex);
3097	+	checkCompletedNormally(f, v1);
3098	+	}}
3099	+
3100		// other static methods
3101
3102		/**
#	Line 2867 | Line 3113 | public class CompletableFutureTest exten
3113		* when all components complete normally
3114		*/
3115		public void testAllOf_normal() throws Exception {
3116	<	for (int k = 1; k < 20; ++k) {
3116	>	for (int k = 1; k < 10; k++) {
3117		CompletableFuture<Integer>[] fs
3118		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3119	<	for (int i = 0; i < k; ++i)
3119	>	for (int i = 0; i < k; i++)
3120		fs[i] = new CompletableFuture<>();
3121		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3122	<	for (int i = 0; i < k; ++i) {
3122	>	for (int i = 0; i < k; i++) {
3123		checkIncomplete(f);
3124		checkIncomplete(CompletableFuture.allOf(fs));
3125		fs[i].complete(one);
#	Line 2883 | Line 3129 | public class CompletableFutureTest exten
3129		}
3130		}
3131
3132	<	public void testAllOf_backwards() throws Exception {
3133	<	for (int k = 1; k < 20; ++k) {
3132	>	public void testAllOf_normal_backwards() throws Exception {
3133	>	for (int k = 1; k < 10; k++) {
3134		CompletableFuture<Integer>[] fs
3135		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3136	<	for (int i = 0; i < k; ++i)
3136	>	for (int i = 0; i < k; i++)
3137		fs[i] = new CompletableFuture<>();
3138		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3139		for (int i = k - 1; i >= 0; i--) {
#	Line 2900 | Line 3146 | public class CompletableFutureTest exten
3146		}
3147		}
3148
3149	+	public void testAllOf_exceptional() throws Exception {
3150	+	for (int k = 1; k < 10; k++) {
3151	+	CompletableFuture<Integer>[] fs
3152	+	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3153	+	CFException ex = new CFException();
3154	+	for (int i = 0; i < k; i++)
3155	+	fs[i] = new CompletableFuture<>();
3156	+	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3157	+	for (int i = 0; i < k; i++) {
3158	+	checkIncomplete(f);
3159	+	checkIncomplete(CompletableFuture.allOf(fs));
3160	+	if (i != k / 2) {
3161	+	fs[i].complete(i);
3162	+	checkCompletedNormally(fs[i], i);
3163	+	} else {
3164	+	fs[i].completeExceptionally(ex);
3165	+	checkCompletedExceptionally(fs[i], ex);
3166	+	}
3167	+	}
3168	+	checkCompletedWithWrappedException(f, ex);
3169	+	checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3170	+	}
3171	+	}
3172	+
3173		/**
3174		* anyOf(no component futures) returns an incomplete future
3175		*/
3176		public void testAnyOf_empty() throws Exception {
3177	+	for (Integer v1 : new Integer[] { 1, null })
3178	+	{
3179		CompletableFuture<Object> f = CompletableFuture.anyOf();
3180		checkIncomplete(f);
3181	<	}
3181	>
3182	>	f.complete(v1);
3183	>	checkCompletedNormally(f, v1);
3184	>	}}
3185
3186		/**
3187		* anyOf returns a future completed normally with a value when
3188		* a component future does
3189		*/
3190		public void testAnyOf_normal() throws Exception {
3191	<	for (int k = 0; k < 10; ++k) {
3191	>	for (int k = 0; k < 10; k++) {
3192		CompletableFuture[] fs = new CompletableFuture[k];
3193	<	for (int i = 0; i < k; ++i)
3193	>	for (int i = 0; i < k; i++)
3194		fs[i] = new CompletableFuture<>();
3195		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3196		checkIncomplete(f);
3197	<	for (int i = 0; i < k; ++i) {
3198	<	fs[i].complete(one);
3199	<	checkCompletedNormally(f, one);
3200	<	checkCompletedNormally(CompletableFuture.anyOf(fs), one);
3197	>	for (int i = 0; i < k; i++) {
3198	>	fs[i].complete(i);
3199	>	checkCompletedNormally(f, 0);
3200	>	int x = (int) CompletableFuture.anyOf(fs).join();
3201	>	assertTrue(0 <= x && x <= i);
3202	>	}
3203	>	}
3204	>	}
3205	>	public void testAnyOf_normal_backwards() throws Exception {
3206	>	for (int k = 0; k < 10; k++) {
3207	>	CompletableFuture[] fs = new CompletableFuture[k];
3208	>	for (int i = 0; i < k; i++)
3209	>	fs[i] = new CompletableFuture<>();
3210	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3211	>	checkIncomplete(f);
3212	>	for (int i = k - 1; i >= 0; i--) {
3213	>	fs[i].complete(i);
3214	>	checkCompletedNormally(f, k - 1);
3215	>	int x = (int) CompletableFuture.anyOf(fs).join();
3216	>	assertTrue(i <= x && x <= k - 1);
3217		}
3218		}
3219		}
#	Line 2931 | Line 3222 | public class CompletableFutureTest exten
3222		* anyOf result completes exceptionally when any component does.
3223		*/
3224		public void testAnyOf_exceptional() throws Exception {
3225	<	for (int k = 0; k < 10; ++k) {
3225	>	for (int k = 0; k < 10; k++) {
3226		CompletableFuture[] fs = new CompletableFuture[k];
3227	<	for (int i = 0; i < k; ++i)
3227	>	CFException[] exs = new CFException[k];
3228	>	for (int i = 0; i < k; i++) {
3229		fs[i] = new CompletableFuture<>();
3230	+	exs[i] = new CFException();
3231	+	}
3232		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3233		checkIncomplete(f);
3234	<	for (int i = 0; i < k; ++i) {
3235	<	fs[i].completeExceptionally(new CFException());
3236	<	checkCompletedWithWrappedCFException(f);
3234	>	for (int i = 0; i < k; i++) {
3235	>	fs[i].completeExceptionally(exs[i]);
3236	>	checkCompletedWithWrappedException(f, exs[0]);
3237	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3238	>	}
3239	>	}
3240	>	}
3241	>
3242	>	public void testAnyOf_exceptional_backwards() throws Exception {
3243	>	for (int k = 0; k < 10; k++) {
3244	>	CompletableFuture[] fs = new CompletableFuture[k];
3245	>	CFException[] exs = new CFException[k];
3246	>	for (int i = 0; i < k; i++) {
3247	>	fs[i] = new CompletableFuture<>();
3248	>	exs[i] = new CFException();
3249	>	}
3250	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3251	>	checkIncomplete(f);
3252	>	for (int i = k - 1; i >= 0; i--) {
3253	>	fs[i].completeExceptionally(exs[i]);
3254	>	checkCompletedWithWrappedException(f, exs[k - 1]);
3255		checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3256		}
3257		}
#	Line 2948 | Line 3260 | public class CompletableFutureTest exten
3260		/**
3261		* Completion methods throw NullPointerException with null arguments
3262		*/
3263	+	@SuppressWarnings("FutureReturnValueIgnored")
3264		public void testNPE() {
3265		CompletableFuture<Integer> f = new CompletableFuture<>();
3266		CompletableFuture<Integer> g = new CompletableFuture<>();
3267		CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
2955	–	CompletableFuture<?> h;
3268		ThreadExecutor exec = new ThreadExecutor();
3269
3270		Runnable[] throwingActions = {
3271		() -> CompletableFuture.supplyAsync(null),
3272		() -> CompletableFuture.supplyAsync(null, exec),
3273	<	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.DEFAULT, 42), null),
3273	>	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3274
3275		() -> CompletableFuture.runAsync(null),
3276		() -> CompletableFuture.runAsync(null, exec),
#	Line 2968 | Line 3280 | public class CompletableFutureTest exten
3280
3281		() -> f.thenApply(null),
3282		() -> f.thenApplyAsync(null),
3283	<	() -> f.thenApplyAsync((x) -> x, null),
3283	>	() -> f.thenApplyAsync(x -> x, null),
3284		() -> f.thenApplyAsync(null, exec),
3285
3286		() -> f.thenAccept(null),
3287		() -> f.thenAcceptAsync(null),
3288	<	() -> f.thenAcceptAsync((x) -> {} , null),
3288	>	() -> f.thenAcceptAsync(x -> {} , null),
3289		() -> f.thenAcceptAsync(null, exec),
3290
3291		() -> f.thenRun(null),
#	Line 3008 | Line 3320 | public class CompletableFutureTest exten
3320		() -> f.applyToEither(g, null),
3321		() -> f.applyToEitherAsync(g, null),
3322		() -> f.applyToEitherAsync(g, null, exec),
3323	<	() -> f.applyToEither(nullFuture, (x) -> x),
3324	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x),
3325	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
3326	<	() -> f.applyToEitherAsync(g, (x) -> x, null),
3323	>	() -> f.applyToEither(nullFuture, x -> x),
3324	>	() -> f.applyToEitherAsync(nullFuture, x -> x),
3325	>	() -> f.applyToEitherAsync(nullFuture, x -> x, exec),
3326	>	() -> f.applyToEitherAsync(g, x -> x, null),
3327
3328		() -> f.acceptEither(g, null),
3329		() -> f.acceptEitherAsync(g, null),
3330		() -> f.acceptEitherAsync(g, null, exec),
3331	<	() -> f.acceptEither(nullFuture, (x) -> {}),
3332	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}),
3333	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
3334	<	() -> f.acceptEitherAsync(g, (x) -> {}, null),
3331	>	() -> f.acceptEither(nullFuture, x -> {}),
3332	>	() -> f.acceptEitherAsync(nullFuture, x -> {}),
3333	>	() -> f.acceptEitherAsync(nullFuture, x -> {}, exec),
3334	>	() -> f.acceptEitherAsync(g, x -> {}, null),
3335
3336		() -> f.runAfterEither(g, null),
3337		() -> f.runAfterEitherAsync(g, null),
#	Line 3049 | Line 3361 | public class CompletableFutureTest exten
3361		() -> CompletableFuture.anyOf(null, f),
3362
3363		() -> f.obtrudeException(null),
3364	+
3365	+	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3366	+	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3367	+	() -> CompletableFuture.delayedExecutor(1L, null),
3368	+
3369	+	() -> f.orTimeout(1L, null),
3370	+	() -> f.completeOnTimeout(42, 1L, null),
3371	+
3372	+	() -> CompletableFuture.failedFuture(null),
3373	+	() -> CompletableFuture.failedStage(null),
3374		};
3375
3376		assertThrows(NullPointerException.class, throwingActions);
#	Line 3056 | Line 3378 | public class CompletableFutureTest exten
3378		}
3379
3380		/**
3381	+	* Test submissions to an executor that rejects all tasks.
3382	+	*/
3383	+	public void testRejectingExecutor() {
3384	+	for (Integer v : new Integer[] { 1, null })
3385	+	{
3386	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3387	+
3388	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3389	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3390	+
3391	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3392	+
3393	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3394	+	srcs.add(complete);
3395	+	srcs.add(incomplete);
3396	+
3397	+	for (CompletableFuture<Integer> src : srcs) {
3398	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3399	+	fs.add(src.thenRunAsync(() -> {}, e));
3400	+	fs.add(src.thenAcceptAsync(z -> {}, e));
3401	+	fs.add(src.thenApplyAsync(z -> z, e));
3402	+
3403	+	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3404	+	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3405	+	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3406	+
3407	+	fs.add(src.applyToEitherAsync(src, z -> z, e));
3408	+	fs.add(src.acceptEitherAsync(src, z -> {}, e));
3409	+	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3410	+
3411	+	fs.add(src.thenComposeAsync(z -> null, e));
3412	+	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3413	+	fs.add(src.handleAsync((z, t) -> null, e));
3414	+
3415	+	for (CompletableFuture<?> future : fs) {
3416	+	if (src.isDone())
3417	+	checkCompletedWithWrappedException(future, e.ex);
3418	+	else
3419	+	checkIncomplete(future);
3420	+	}
3421	+	futures.addAll(fs);
3422	+	}
3423	+
3424	+	{
3425	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3426	+
3427	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3428	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3429	+
3430	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3431	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3432	+
3433	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3434	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3435	+
3436	+	for (CompletableFuture<?> future : fs)
3437	+	checkIncomplete(future);
3438	+	futures.addAll(fs);
3439	+	}
3440	+
3441	+	{
3442	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3443	+
3444	+	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3445	+	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3446	+
3447	+	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3448	+	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3449	+
3450	+	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3451	+	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3452	+
3453	+	for (CompletableFuture<?> future : fs)
3454	+	checkCompletedWithWrappedException(future, e.ex);
3455	+	futures.addAll(fs);
3456	+	}
3457	+
3458	+	incomplete.complete(v);
3459	+
3460	+	for (CompletableFuture<?> future : futures)
3461	+	checkCompletedWithWrappedException(future, e.ex);
3462	+
3463	+	assertEquals(futures.size(), e.count.get());
3464	+	}}
3465	+
3466	+	/**
3467	+	* Test submissions to an executor that rejects all tasks, but
3468	+	* should never be invoked because the dependent future is
3469	+	* explicitly completed.
3470	+	*/
3471	+	public void testRejectingExecutorNeverInvoked() {
3472	+	for (Integer v : new Integer[] { 1, null })
3473	+	{
3474	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3475	+
3476	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3477	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3478	+
3479	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3480	+
3481	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3482	+	srcs.add(complete);
3483	+	srcs.add(incomplete);
3484	+
3485	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3486	+	fs.add(incomplete.thenRunAsync(() -> {}, e));
3487	+	fs.add(incomplete.thenAcceptAsync(z -> {}, e));
3488	+	fs.add(incomplete.thenApplyAsync(z -> z, e));
3489	+
3490	+	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3491	+	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3492	+	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3493	+
3494	+	fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e));
3495	+	fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e));
3496	+	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3497	+
3498	+	fs.add(incomplete.thenComposeAsync(z -> null, e));
3499	+	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3500	+	fs.add(incomplete.handleAsync((z, t) -> null, e));
3501	+
3502	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3503	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3504	+
3505	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3506	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3507	+
3508	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3509	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3510	+
3511	+	for (CompletableFuture<?> future : fs)
3512	+	checkIncomplete(future);
3513	+
3514	+	for (CompletableFuture<?> future : fs)
3515	+	future.complete(null);
3516	+
3517	+	incomplete.complete(v);
3518	+
3519	+	for (CompletableFuture<?> future : fs)
3520	+	checkCompletedNormally(future, null);
3521	+
3522	+	assertEquals(0, e.count.get());
3523	+	}}
3524	+
3525	+	/**
3526		* toCompletableFuture returns this CompletableFuture.
3527		*/
3528		public void testToCompletableFuture() {
#	Line 3063 | Line 3530 | public class CompletableFutureTest exten
3530		assertSame(f, f.toCompletableFuture());
3531		}
3532
3533	<	//     public void testRunAfterEither_resultDeterminedAtTimeOfCreation() {
3534	<	//         for (ExecutionMode m : ExecutionMode.values())
3535	<	//         for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3536	<	//         for (Integer v1 : new Integer[] { 1, null })
3537	<	//     {
3538	<	//         final CompletableFuture<Integer> f = new CompletableFuture<>();
3539	<	//         final CompletableFuture<Integer> g = new CompletableFuture<>();
3540	<	//         final Noop[] rs = new Noop[2];
3541	<	//         for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
3542	<	//         f.complete(v1);
3543	<	//         final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
3544	<	//         final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
3545	<	//         assertTrue(g.cancel(mayInterruptIfRunning));
3546	<	//         checkCompletedNormally(h0, null);
3547	<	//         checkCompletedNormally(h1, null);
3548	<	//         for (Noop r : rs) r.assertInvoked();
3549	<	//     }}
3533	>	// jdk9
3534	>
3535	>	/**
3536	>	* newIncompleteFuture returns an incomplete CompletableFuture
3537	>	*/
3538	>	public void testNewIncompleteFuture() {
3539	>	for (Integer v1 : new Integer[] { 1, null })
3540	>	{
3541	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3542	>	CompletableFuture<Integer> g = f.newIncompleteFuture();
3543	>	checkIncomplete(f);
3544	>	checkIncomplete(g);
3545	>	f.complete(v1);
3546	>	checkCompletedNormally(f, v1);
3547	>	checkIncomplete(g);
3548	>	g.complete(v1);
3549	>	checkCompletedNormally(g, v1);
3550	>	assertSame(g.getClass(), CompletableFuture.class);
3551	>	}}
3552	>
3553	>	/**
3554	>	* completedStage returns a completed CompletionStage
3555	>	*/
3556	>	public void testCompletedStage() {
3557	>	AtomicInteger x = new AtomicInteger(0);
3558	>	AtomicReference<Throwable> r = new AtomicReference<>();
3559	>	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3560	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3561	>	assertEquals(x.get(), 1);
3562	>	assertNull(r.get());
3563	>	}
3564	>
3565	>	/**
3566	>	* defaultExecutor by default returns the commonPool if
3567	>	* it supports more than one thread.
3568	>	*/
3569	>	public void testDefaultExecutor() {
3570	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3571	>	Executor e = f.defaultExecutor();
3572	>	Executor c = ForkJoinPool.commonPool();
3573	>	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3574	>	assertSame(e, c);
3575	>	else
3576	>	assertNotSame(e, c);
3577	>	}
3578	>
3579	>	/**
3580	>	* failedFuture returns a CompletableFuture completed
3581	>	* exceptionally with the given Exception
3582	>	*/
3583	>	public void testFailedFuture() {
3584	>	CFException ex = new CFException();
3585	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3586	>	checkCompletedExceptionally(f, ex);
3587	>	}
3588	>
3589	>	/**
3590	>	* failedFuture(null) throws NPE
3591	>	*/
3592	>	public void testFailedFuture_null() {
3593	>	try {
3594	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3595	>	shouldThrow();
3596	>	} catch (NullPointerException success) {}
3597	>	}
3598	>
3599	>	/**
3600	>	* copy returns a CompletableFuture that is completed normally,
3601	>	* with the same value, when source is.
3602	>	*/
3603	>	public void testCopy_normalCompletion() {
3604	>	for (boolean createIncomplete : new boolean[] { true, false })
3605	>	for (Integer v1 : new Integer[] { 1, null })
3606	>	{
3607	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3608	>	if (!createIncomplete) assertTrue(f.complete(v1));
3609	>	CompletableFuture<Integer> g = f.copy();
3610	>	if (createIncomplete) {
3611	>	checkIncomplete(f);
3612	>	checkIncomplete(g);
3613	>	assertTrue(f.complete(v1));
3614	>	}
3615	>	checkCompletedNormally(f, v1);
3616	>	checkCompletedNormally(g, v1);
3617	>	}}
3618	>
3619	>	/**
3620	>	* copy returns a CompletableFuture that is completed exceptionally
3621	>	* when source is.
3622	>	*/
3623	>	public void testCopy_exceptionalCompletion() {
3624	>	for (boolean createIncomplete : new boolean[] { true, false })
3625	>	{
3626	>	CFException ex = new CFException();
3627	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3628	>	if (!createIncomplete) f.completeExceptionally(ex);
3629	>	CompletableFuture<Integer> g = f.copy();
3630	>	if (createIncomplete) {
3631	>	checkIncomplete(f);
3632	>	checkIncomplete(g);
3633	>	f.completeExceptionally(ex);
3634	>	}
3635	>	checkCompletedExceptionally(f, ex);
3636	>	checkCompletedWithWrappedException(g, ex);
3637	>	}}
3638	>
3639	>	/**
3640	>	* Completion of a copy does not complete its source.
3641	>	*/
3642	>	public void testCopy_oneWayPropagation() {
3643	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3644	>	assertTrue(f.copy().complete(1));
3645	>	assertTrue(f.copy().complete(null));
3646	>	assertTrue(f.copy().cancel(true));
3647	>	assertTrue(f.copy().cancel(false));
3648	>	assertTrue(f.copy().completeExceptionally(new CFException()));
3649	>	checkIncomplete(f);
3650	>	}
3651	>
3652	>	/**
3653	>	* minimalCompletionStage returns a CompletableFuture that is
3654	>	* completed normally, with the same value, when source is.
3655	>	*/
3656	>	public void testMinimalCompletionStage() {
3657	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3658	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3659	>	AtomicInteger x = new AtomicInteger(0);
3660	>	AtomicReference<Throwable> r = new AtomicReference<>();
3661	>	checkIncomplete(f);
3662	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3663	>	f.complete(1);
3664	>	checkCompletedNormally(f, 1);
3665	>	assertEquals(x.get(), 1);
3666	>	assertNull(r.get());
3667	>	}
3668	>
3669	>	/**
3670	>	* minimalCompletionStage returns a CompletableFuture that is
3671	>	* completed exceptionally when source is.
3672	>	*/
3673	>	public void testMinimalCompletionStage2() {
3674	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3675	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3676	>	AtomicInteger x = new AtomicInteger(0);
3677	>	AtomicReference<Throwable> r = new AtomicReference<>();
3678	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3679	>	checkIncomplete(f);
3680	>	CFException ex = new CFException();
3681	>	f.completeExceptionally(ex);
3682	>	checkCompletedExceptionally(f, ex);
3683	>	assertEquals(x.get(), 0);
3684	>	assertEquals(r.get().getCause(), ex);
3685	>	}
3686	>
3687	>	/**
3688	>	* failedStage returns a CompletionStage completed
3689	>	* exceptionally with the given Exception
3690	>	*/
3691	>	public void testFailedStage() {
3692	>	CFException ex = new CFException();
3693	>	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3694	>	AtomicInteger x = new AtomicInteger(0);
3695	>	AtomicReference<Throwable> r = new AtomicReference<>();
3696	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3697	>	assertEquals(x.get(), 0);
3698	>	assertEquals(r.get(), ex);
3699	>	}
3700	>
3701	>	/**
3702	>	* completeAsync completes with value of given supplier
3703	>	*/
3704	>	public void testCompleteAsync() {
3705	>	for (Integer v1 : new Integer[] { 1, null })
3706	>	{
3707	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3708	>	f.completeAsync(() -> v1);
3709	>	f.join();
3710	>	checkCompletedNormally(f, v1);
3711	>	}}
3712	>
3713	>	/**
3714	>	* completeAsync completes exceptionally if given supplier throws
3715	>	*/
3716	>	public void testCompleteAsync2() {
3717	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3718	>	CFException ex = new CFException();
3719	>	f.completeAsync(() -> { throw ex; });
3720	>	try {
3721	>	f.join();
3722	>	shouldThrow();
3723	>	} catch (CompletionException success) {}
3724	>	checkCompletedWithWrappedException(f, ex);
3725	>	}
3726	>
3727	>	/**
3728	>	* completeAsync with given executor completes with value of given supplier
3729	>	*/
3730	>	public void testCompleteAsync3() {
3731	>	for (Integer v1 : new Integer[] { 1, null })
3732	>	{
3733	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3734	>	ThreadExecutor executor = new ThreadExecutor();
3735	>	f.completeAsync(() -> v1, executor);
3736	>	assertSame(v1, f.join());
3737	>	checkCompletedNormally(f, v1);
3738	>	assertEquals(1, executor.count.get());
3739	>	}}
3740	>
3741	>	/**
3742	>	* completeAsync with given executor completes exceptionally if
3743	>	* given supplier throws
3744	>	*/
3745	>	public void testCompleteAsync4() {
3746	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3747	>	CFException ex = new CFException();
3748	>	ThreadExecutor executor = new ThreadExecutor();
3749	>	f.completeAsync(() -> { throw ex; }, executor);
3750	>	try {
3751	>	f.join();
3752	>	shouldThrow();
3753	>	} catch (CompletionException success) {}
3754	>	checkCompletedWithWrappedException(f, ex);
3755	>	assertEquals(1, executor.count.get());
3756	>	}
3757	>
3758	>	/**
3759	>	* orTimeout completes with TimeoutException if not complete
3760	>	*/
3761	>	public void testOrTimeout_timesOut() {
3762	>	long timeoutMillis = timeoutMillis();
3763	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3764	>	long startTime = System.nanoTime();
3765	>	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3766	>	checkCompletedWithTimeoutException(f);
3767	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3768	>	}
3769	>
3770	>	/**
3771	>	* orTimeout completes normally if completed before timeout
3772	>	*/
3773	>	public void testOrTimeout_completed() {
3774	>	for (Integer v1 : new Integer[] { 1, null })
3775	>	{
3776	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3777	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3778	>	long startTime = System.nanoTime();
3779	>	f.complete(v1);
3780	>	assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3781	>	assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3782	>	g.complete(v1);
3783	>	checkCompletedNormally(f, v1);
3784	>	checkCompletedNormally(g, v1);
3785	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3786	>	}}
3787	>
3788	>	/**
3789	>	* completeOnTimeout completes with given value if not complete
3790	>	*/
3791	>	public void testCompleteOnTimeout_timesOut() {
3792	>	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3793	>	() -> testCompleteOnTimeout_timesOut(null));
3794	>	}
3795	>
3796	>	/**
3797	>	* completeOnTimeout completes with given value if not complete
3798	>	*/
3799	>	public void testCompleteOnTimeout_timesOut(Integer v) {
3800	>	long timeoutMillis = timeoutMillis();
3801	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3802	>	long startTime = System.nanoTime();
3803	>	assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS));
3804	>	assertSame(v, f.join());
3805	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3806	>	f.complete(99);         // should have no effect
3807	>	checkCompletedNormally(f, v);
3808	>	}
3809	>
3810	>	/**
3811	>	* completeOnTimeout has no effect if completed within timeout
3812	>	*/
3813	>	public void testCompleteOnTimeout_completed() {
3814	>	for (Integer v1 : new Integer[] { 1, null })
3815	>	{
3816	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3817	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3818	>	long startTime = System.nanoTime();
3819	>	f.complete(v1);
3820	>	assertSame(f, f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3821	>	assertSame(g, g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3822	>	g.complete(v1);
3823	>	checkCompletedNormally(f, v1);
3824	>	checkCompletedNormally(g, v1);
3825	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3826	>	}}
3827	>
3828	>	/**
3829	>	* delayedExecutor returns an executor that delays submission
3830	>	*/
3831	>	public void testDelayedExecutor() {
3832	>	testInParallel(() -> testDelayedExecutor(null, null),
3833	>	() -> testDelayedExecutor(null, 1),
3834	>	() -> testDelayedExecutor(new ThreadExecutor(), 1),
3835	>	() -> testDelayedExecutor(new ThreadExecutor(), 1));
3836	>	}
3837	>
3838	>	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
3839	>	long timeoutMillis = timeoutMillis();
3840	>	// Use an "unreasonably long" long timeout to catch lingering threads
3841	>	long longTimeoutMillis = 1000 * 60 * 60 * 24;
3842	>	final Executor delayer, longDelayer;
3843	>	if (executor == null) {
3844	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
3845	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
3846	>	} else {
3847	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
3848	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
3849	>	}
3850	>	long startTime = System.nanoTime();
3851	>	CompletableFuture<Integer> f =
3852	>	CompletableFuture.supplyAsync(() -> v, delayer);
3853	>	CompletableFuture<Integer> g =
3854	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
3855	>
3856	>	assertNull(g.getNow(null));
3857	>
3858	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
3859	>	long millisElapsed = millisElapsedSince(startTime);
3860	>	assertTrue(millisElapsed >= timeoutMillis);
3861	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
3862	>
3863	>	checkCompletedNormally(f, v);
3864	>
3865	>	checkIncomplete(g);
3866	>	assertTrue(g.cancel(true));
3867	>	}
3868	>
3869	>	//--- tests of implementation details; not part of official tck ---
3870	>
3871	>	Object resultOf(CompletableFuture<?> f) {
3872	>	SecurityManager sm = System.getSecurityManager();
3873	>	if (sm != null) {
3874	>	try {
3875	>	System.setSecurityManager(null);
3876	>	} catch (SecurityException giveUp) {
3877	>	return "Reflection not available";
3878	>	}
3879	>	}
3880	>
3881	>	try {
3882	>	java.lang.reflect.Field resultField
3883	>	= CompletableFuture.class.getDeclaredField("result");
3884	>	resultField.setAccessible(true);
3885	>	return resultField.get(f);
3886	>	} catch (Throwable t) {
3887	>	throw new AssertionError(t);
3888	>	} finally {
3889	>	if (sm != null) System.setSecurityManager(sm);
3890	>	}
3891	>	}
3892	>
3893	>	public void testExceptionPropagationReusesResultObject() {
3894	>	if (!testImplementationDetails) return;
3895	>	for (ExecutionMode m : ExecutionMode.values())
3896	>	{
3897	>	final CFException ex = new CFException();
3898	>	final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
3899	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3900	>
3901	>	final Runnable noopRunnable = new Noop(m);
3902	>	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
3903	>	final Function<Integer, Integer> incFunction = new IncFunction(m);
3904	>
3905	>	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
3906	>	= new ArrayList<>();
3907	>
3908	>	funs.add(y -> m.thenRun(y, noopRunnable));
3909	>	funs.add(y -> m.thenAccept(y, noopConsumer));
3910	>	funs.add(y -> m.thenApply(y, incFunction));
3911	>
3912	>	funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable));
3913	>	funs.add(y -> m.acceptEither(y, incomplete, noopConsumer));
3914	>	funs.add(y -> m.applyToEither(y, incomplete, incFunction));
3915	>
3916	>	funs.add(y -> m.runAfterBoth(y, v42, noopRunnable));
3917	>	funs.add(y -> m.runAfterBoth(v42, y, noopRunnable));
3918	>	funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3919	>	funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
3920	>	funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m)));
3921	>	funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m)));
3922	>
3923	>	funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
3924	>
3925	>	funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m)));
3926	>
3927	>	funs.add(y -> CompletableFuture.allOf(y));
3928	>	funs.add(y -> CompletableFuture.allOf(y, v42));
3929	>	funs.add(y -> CompletableFuture.allOf(v42, y));
3930	>	funs.add(y -> CompletableFuture.anyOf(y));
3931	>	funs.add(y -> CompletableFuture.anyOf(y, incomplete));
3932	>	funs.add(y -> CompletableFuture.anyOf(incomplete, y));
3933	>
3934	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3935	>	fun : funs) {
3936	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3937	>	f.completeExceptionally(ex);
3938	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3939	>	checkCompletedWithWrappedException(src, ex);
3940	>	CompletableFuture<?> dep = fun.apply(src);
3941	>	checkCompletedWithWrappedException(dep, ex);
3942	>	assertSame(resultOf(src), resultOf(dep));
3943	>	}
3944	>
3945	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3946	>	fun : funs) {
3947	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3948	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3949	>	CompletableFuture<?> dep = fun.apply(src);
3950	>	f.completeExceptionally(ex);
3951	>	checkCompletedWithWrappedException(src, ex);
3952	>	checkCompletedWithWrappedException(dep, ex);
3953	>	assertSame(resultOf(src), resultOf(dep));
3954	>	}
3955	>
3956	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3957	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3958	>	fun : funs) {
3959	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3960	>	f.cancel(mayInterruptIfRunning);
3961	>	checkCancelled(f);
3962	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3963	>	checkCompletedWithWrappedCancellationException(src);
3964	>	CompletableFuture<?> dep = fun.apply(src);
3965	>	checkCompletedWithWrappedCancellationException(dep);
3966	>	assertSame(resultOf(src), resultOf(dep));
3967	>	}
3968	>
3969	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3970	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3971	>	fun : funs) {
3972	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3973	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3974	>	CompletableFuture<?> dep = fun.apply(src);
3975	>	f.cancel(mayInterruptIfRunning);
3976	>	checkCancelled(f);
3977	>	checkCompletedWithWrappedCancellationException(src);
3978	>	checkCompletedWithWrappedCancellationException(dep);
3979	>	assertSame(resultOf(src), resultOf(dep));
3980	>	}
3981	>	}}
3982	>
3983	>	/**
3984	>	* Minimal completion stages throw UOE for most non-CompletionStage methods
3985	>	*/
3986	>	public void testMinimalCompletionStage_minimality() {
3987	>	if (!testImplementationDetails) return;
3988	>	Function<Method, String> toSignature =
3989	>	method -> method.getName() + Arrays.toString(method.getParameterTypes());
3990	>	Predicate<Method> isNotStatic =
3991	>	method -> (method.getModifiers() & Modifier.STATIC) == 0;
3992	>	List<Method> minimalMethods =
3993	>	Stream.of(Object.class, CompletionStage.class)
3994	>	.flatMap(klazz -> Stream.of(klazz.getMethods()))
3995	>	.filter(isNotStatic)
3996	>	.collect(Collectors.toList());
3997	>	// Methods from CompletableFuture permitted NOT to throw UOE
3998	>	String[] signatureWhitelist = {
3999	>	"newIncompleteFuture[]",
4000	>	"defaultExecutor[]",
4001	>	"minimalCompletionStage[]",
4002	>	"copy[]",
4003	>	};
4004	>	Set<String> permittedMethodSignatures =
4005	>	Stream.concat(minimalMethods.stream().map(toSignature),
4006	>	Stream.of(signatureWhitelist))
4007	>	.collect(Collectors.toSet());
4008	>	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
4009	>	.filter(isNotStatic)
4010	>	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4011	>	.collect(Collectors.toList());
4012	>
4013	>	List<CompletionStage<Integer>> stages = new ArrayList<>();
4014	>	CompletionStage<Integer> min =
4015	>	new CompletableFuture<Integer>().minimalCompletionStage();
4016	>	stages.add(min);
4017	>	stages.add(min.thenApply(x -> x));
4018	>	stages.add(CompletableFuture.completedStage(1));
4019	>	stages.add(CompletableFuture.failedStage(new CFException()));
4020	>
4021	>	List<Method> bugs = new ArrayList<>();
4022	>	for (Method method : allMethods) {
4023	>	Class<?>[] parameterTypes = method.getParameterTypes();
4024	>	Object[] args = new Object[parameterTypes.length];
4025	>	// Manufacture boxed primitives for primitive params
4026	>	for (int i = 0; i < args.length; i++) {
4027	>	Class<?> type = parameterTypes[i];
4028	>	if (parameterTypes[i] == boolean.class)
4029	>	args[i] = false;
4030	>	else if (parameterTypes[i] == int.class)
4031	>	args[i] = 0;
4032	>	else if (parameterTypes[i] == long.class)
4033	>	args[i] = 0L;
4034	>	}
4035	>	for (CompletionStage<Integer> stage : stages) {
4036	>	try {
4037	>	method.invoke(stage, args);
4038	>	bugs.add(method);
4039	>	}
4040	>	catch (java.lang.reflect.InvocationTargetException expected) {
4041	>	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4042	>	bugs.add(method);
4043	>	// expected.getCause().printStackTrace();
4044	>	}
4045	>	}
4046	>	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4047	>	}
4048	>	}
4049	>	if (!bugs.isEmpty())
4050	>	throw new Error("Methods did not throw UOE: " + bugs);
4051	>	}
4052	>
4053	>	/**
4054	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4055	>	* is completed normally, with the same value, when source is.
4056	>	*/
4057	>	public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() {
4058	>	for (boolean createIncomplete : new boolean[] { true, false })
4059	>	for (Integer v1 : new Integer[] { 1, null })
4060	>	{
4061	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4062	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4063	>	if (!createIncomplete) assertTrue(f.complete(v1));
4064	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4065	>	if (createIncomplete) {
4066	>	checkIncomplete(f);
4067	>	checkIncomplete(g);
4068	>	assertTrue(f.complete(v1));
4069	>	}
4070	>	checkCompletedNormally(f, v1);
4071	>	checkCompletedNormally(g, v1);
4072	>	}}
4073	>
4074	>	/**
4075	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4076	>	* is completed exceptionally when source is.
4077	>	*/
4078	>	public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() {
4079	>	for (boolean createIncomplete : new boolean[] { true, false })
4080	>	{
4081	>	CFException ex = new CFException();
4082	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4083	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4084	>	if (!createIncomplete) f.completeExceptionally(ex);
4085	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4086	>	if (createIncomplete) {
4087	>	checkIncomplete(f);
4088	>	checkIncomplete(g);
4089	>	f.completeExceptionally(ex);
4090	>	}
4091	>	checkCompletedExceptionally(f, ex);
4092	>	checkCompletedWithWrappedException(g, ex);
4093	>	}}
4094	>
4095	>	/**
4096	>	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4097	>	*/
4098	>	public void testMinimalCompletionStage_toCompletableFuture_mutable() {
4099	>	for (Integer v1 : new Integer[] { 1, null })
4100	>	{
4101	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4102	>	CompletionStage minimal = f.minimalCompletionStage();
4103	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4104	>	assertTrue(g.complete(v1));
4105	>	checkCompletedNormally(g, v1);
4106	>	checkIncomplete(f);
4107	>	checkIncomplete(minimal.toCompletableFuture());
4108	>	}}
4109	>
4110	>	/**
4111	>	* minimalStage.toCompletableFuture().join() awaits completion
4112	>	*/
4113	>	public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception {
4114	>	for (boolean createIncomplete : new boolean[] { true, false })
4115	>	for (Integer v1 : new Integer[] { 1, null })
4116	>	{
4117	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4118	>	if (!createIncomplete) assertTrue(f.complete(v1));
4119	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4120	>	if (createIncomplete) assertTrue(f.complete(v1));
4121	>	assertEquals(v1, minimal.toCompletableFuture().join());
4122	>	assertEquals(v1, minimal.toCompletableFuture().get());
4123	>	checkCompletedNormally(minimal.toCompletableFuture(), v1);
4124	>	}}
4125	>
4126	>	/**
4127	>	* Completion of a toCompletableFuture copy of a minimal stage
4128	>	* does not complete its source.
4129	>	*/
4130	>	public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() {
4131	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4132	>	CompletionStage<Integer> g = f.minimalCompletionStage();
4133	>	assertTrue(g.toCompletableFuture().complete(1));
4134	>	assertTrue(g.toCompletableFuture().complete(null));
4135	>	assertTrue(g.toCompletableFuture().cancel(true));
4136	>	assertTrue(g.toCompletableFuture().cancel(false));
4137	>	assertTrue(g.toCompletableFuture().completeExceptionally(new CFException()));
4138	>	checkIncomplete(g.toCompletableFuture());
4139	>	f.complete(1);
4140	>	checkCompletedNormally(g.toCompletableFuture(), 1);
4141	>	}
4142	>
4143	>	/** Demo utility method for external reliable toCompletableFuture */
4144	>	static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) {
4145	>	CompletableFuture<T> f = new CompletableFuture<>();
4146	>	stage.handle((T t, Throwable ex) -> {
4147	>	if (ex != null) f.completeExceptionally(ex);
4148	>	else f.complete(t);
4149	>	return null;
4150	>	});
4151	>	return f;
4152	>	}
4153	>
4154	>	/** Demo utility method to join a CompletionStage */
4155	>	static <T> T join(CompletionStage<T> stage) {
4156	>	return toCompletableFuture(stage).join();
4157	>	}
4158	>
4159	>	/**
4160	>	* Joining a minimal stage "by hand" works
4161	>	*/
4162	>	public void testMinimalCompletionStage_join_by_hand() {
4163	>	for (boolean createIncomplete : new boolean[] { true, false })
4164	>	for (Integer v1 : new Integer[] { 1, null })
4165	>	{
4166	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4167	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4168	>	CompletableFuture<Integer> g = new CompletableFuture<>();
4169	>	if (!createIncomplete) assertTrue(f.complete(v1));
4170	>	minimal.thenAccept(x -> g.complete(x));
4171	>	if (createIncomplete) assertTrue(f.complete(v1));
4172	>	g.join();
4173	>	checkCompletedNormally(g, v1);
4174	>	checkCompletedNormally(f, v1);
4175	>	assertEquals(v1, join(minimal));
4176	>	}}
4177	>
4178	>	static class Monad {
4179	>	static class ZeroException extends RuntimeException {
4180	>	public ZeroException() { super("monadic zero"); }
4181	>	}
4182	>	// "return", "unit"
4183	>	static <T> CompletableFuture<T> unit(T value) {
4184	>	return completedFuture(value);
4185	>	}
4186	>	// monadic zero ?
4187	>	static <T> CompletableFuture<T> zero() {
4188	>	return failedFuture(new ZeroException());
4189	>	}
4190	>	// >=>
4191	>	static <T,U,V> Function<T, CompletableFuture<V>> compose
4192	>	(Function<T, CompletableFuture<U>> f,
4193	>	Function<U, CompletableFuture<V>> g) {
4194	>	return x -> f.apply(x).thenCompose(g);
4195	>	}
4196	>
4197	>	static void assertZero(CompletableFuture<?> f) {
4198	>	try {
4199	>	f.getNow(null);
4200	>	throw new AssertionError("should throw");
4201	>	} catch (CompletionException success) {
4202	>	assertTrue(success.getCause() instanceof ZeroException);
4203	>	}
4204	>	}
4205	>
4206	>	static <T> void assertFutureEquals(CompletableFuture<T> f,
4207	>	CompletableFuture<T> g) {
4208	>	T fval = null, gval = null;
4209	>	Throwable fex = null, gex = null;
4210	>
4211	>	try { fval = f.get(); }
4212	>	catch (ExecutionException ex) { fex = ex.getCause(); }
4213	>	catch (Throwable ex) { fex = ex; }
4214	>
4215	>	try { gval = g.get(); }
4216	>	catch (ExecutionException ex) { gex = ex.getCause(); }
4217	>	catch (Throwable ex) { gex = ex; }
4218	>
4219	>	if (fex != null || gex != null)
4220	>	assertSame(fex.getClass(), gex.getClass());
4221	>	else
4222	>	assertEquals(fval, gval);
4223	>	}
4224	>
4225	>	static class PlusFuture<T> extends CompletableFuture<T> {
4226	>	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4227	>	}
4228	>
4229	>	/** Implements "monadic plus". */
4230	>	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
4231	>	CompletableFuture<? extends T> g) {
4232	>	PlusFuture<T> plus = new PlusFuture<T>();
4233	>	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
4234	>	try {
4235	>	if (ex == null) {
4236	>	if (plus.complete(result))
4237	>	if (plus.firstFailure.get() != null)
4238	>	plus.firstFailure.set(null);
4239	>	}
4240	>	else if (plus.firstFailure.compareAndSet(null, ex)) {
4241	>	if (plus.isDone())
4242	>	plus.firstFailure.set(null);
4243	>	}
4244	>	else {
4245	>	// first failure has precedence
4246	>	Throwable first = plus.firstFailure.getAndSet(null);
4247	>
4248	>	// may fail with "Self-suppression not permitted"
4249	>	try { first.addSuppressed(ex); }
4250	>	catch (Exception ignored) {}
4251	>
4252	>	plus.completeExceptionally(first);
4253	>	}
4254	>	} catch (Throwable unexpected) {
4255	>	plus.completeExceptionally(unexpected);
4256	>	}
4257	>	};
4258	>	f.whenComplete(action);
4259	>	g.whenComplete(action);
4260	>	return plus;
4261	>	}
4262	>	}
4263	>
4264	>	/**
4265	>	* CompletableFuture is an additive monad - sort of.
4266	>	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
4267	>	*/
4268	>	public void testAdditiveMonad() throws Throwable {
4269	>	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
4270	>	CompletableFuture<Long> zero = Monad.zero();
4271	>
4272	>	// Some mutually non-commutative functions
4273	>	Function<Long, CompletableFuture<Long>> triple
4274	>	= x -> Monad.unit(3 * x);
4275	>	Function<Long, CompletableFuture<Long>> inc
4276	>	= x -> Monad.unit(x + 1);
4277	>
4278	>	// unit is a right identity: m >>= unit === m
4279	>	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
4280	>	inc.apply(5L));
4281	>	// unit is a left identity: (unit x) >>= f === f x
4282	>	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
4283	>	inc.apply(5L));
4284	>
4285	>	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4286	>	Monad.assertFutureEquals(
4287	>	unit.apply(5L).thenCompose(inc).thenCompose(triple),
4288	>	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4289	>
4290	>	// The case for CompletableFuture as an additive monad is weaker...
4291	>
4292	>	// zero is a monadic zero
4293	>	Monad.assertZero(zero);
4294	>
4295	>	// left zero: zero >>= f === zero
4296	>	Monad.assertZero(zero.thenCompose(inc));
4297	>	// right zero: f >>= (\x -> zero) === zero
4298	>	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4299	>
4300	>	// f plus zero === f
4301	>	Monad.assertFutureEquals(Monad.unit(5L),
4302	>	Monad.plus(Monad.unit(5L), zero));
4303	>	// zero plus f === f
4304	>	Monad.assertFutureEquals(Monad.unit(5L),
4305	>	Monad.plus(zero, Monad.unit(5L)));
4306	>	// zero plus zero === zero
4307	>	Monad.assertZero(Monad.plus(zero, zero));
4308	>	{
4309	>	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
4310	>	Monad.unit(8L));
4311	>	// non-determinism
4312	>	assertTrue(f.get() == 5L || f.get() == 8L);
4313	>	}
4314	>
4315	>	CompletableFuture<Long> godot = new CompletableFuture<>();
4316	>	// f plus godot === f (doesn't wait for godot)
4317	>	Monad.assertFutureEquals(Monad.unit(5L),
4318	>	Monad.plus(Monad.unit(5L), godot));
4319	>	// godot plus f === f (doesn't wait for godot)
4320	>	Monad.assertFutureEquals(Monad.unit(5L),
4321	>	Monad.plus(godot, Monad.unit(5L)));
4322	>	}
4323	>
4324	>	/** Test long recursive chains of CompletableFutures with cascading completions */
4325	>	@SuppressWarnings("FutureReturnValueIgnored")
4326	>	public void testRecursiveChains() throws Throwable {
4327	>	for (ExecutionMode m : ExecutionMode.values())
4328	>	for (boolean addDeadEnds : new boolean[] { true, false })
4329	>	{
4330	>	final int val = 42;
4331	>	final int n = expensiveTests ? 1_000 : 2;
4332	>	CompletableFuture<Integer> head = new CompletableFuture<>();
4333	>	CompletableFuture<Integer> tail = head;
4334	>	for (int i = 0; i < n; i++) {
4335	>	if (addDeadEnds) m.thenApply(tail, v -> v + 1);
4336	>	tail = m.thenApply(tail, v -> v + 1);
4337	>	if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1);
4338	>	tail = m.applyToEither(tail, tail, v -> v + 1);
4339	>	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1);
4340	>	tail = m.thenCombine(tail, tail, (v, w) -> v + 1);
4341	>	}
4342	>	head.complete(val);
4343	>	assertEquals(val + 3 * n, (int) tail.join());
4344	>	}}
4345	>
4346	>	/**
4347	>	* A single CompletableFuture with many dependents.
4348	>	* A demo of scalability - runtime is O(n).
4349	>	*/
4350	>	@SuppressWarnings("FutureReturnValueIgnored")
4351	>	public void testManyDependents() throws Throwable {
4352	>	final int n = expensiveTests ? 1_000_000 : 10;
4353	>	final CompletableFuture<Void> head = new CompletableFuture<>();
4354	>	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4355	>	final AtomicInteger count = new AtomicInteger(0);
4356	>	for (int i = 0; i < n; i++) {
4357	>	head.thenRun(() -> count.getAndIncrement());
4358	>	head.thenAccept(x -> count.getAndIncrement());
4359	>	head.thenApply(x -> count.getAndIncrement());
4360	>
4361	>	head.runAfterBoth(complete, () -> count.getAndIncrement());
4362	>	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
4363	>	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
4364	>	complete.runAfterBoth(head, () -> count.getAndIncrement());
4365	>	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
4366	>	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4367	>
4368	>	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4369	>	head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4370	>	head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4371	>	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4372	>	new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement());
4373	>	new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement());
4374	>	}
4375	>	head.complete(null);
4376	>	assertEquals(5 * 3 * n, count.get());
4377	>	}
4378	>
4379	>	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4380	>	@SuppressWarnings("FutureReturnValueIgnored")
4381	>	public void testCoCompletionGarbageRetention() throws Throwable {
4382	>	final int n = expensiveTests ? 1_000_000 : 10;
4383	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4384	>	CompletableFuture<Integer> f;
4385	>	for (int i = 0; i < n; i++) {
4386	>	f = new CompletableFuture<>();
4387	>	f.runAfterEither(incomplete, () -> {});
4388	>	f.complete(null);
4389	>
4390	>	f = new CompletableFuture<>();
4391	>	f.acceptEither(incomplete, x -> {});
4392	>	f.complete(null);
4393	>
4394	>	f = new CompletableFuture<>();
4395	>	f.applyToEither(incomplete, x -> x);
4396	>	f.complete(null);
4397	>
4398	>	f = new CompletableFuture<>();
4399	>	CompletableFuture.anyOf(f, incomplete);
4400	>	f.complete(null);
4401	>	}
4402	>
4403	>	for (int i = 0; i < n; i++) {
4404	>	f = new CompletableFuture<>();
4405	>	incomplete.runAfterEither(f, () -> {});
4406	>	f.complete(null);
4407	>
4408	>	f = new CompletableFuture<>();
4409	>	incomplete.acceptEither(f, x -> {});
4410	>	f.complete(null);
4411	>
4412	>	f = new CompletableFuture<>();
4413	>	incomplete.applyToEither(f, x -> x);
4414	>	f.complete(null);
4415	>
4416	>	f = new CompletableFuture<>();
4417	>	CompletableFuture.anyOf(incomplete, f);
4418	>	f.complete(null);
4419	>	}
4420	>	}
4421	>
4422	>	/**
4423	>	* Reproduction recipe for:
4424	>	* 8160402: Garbage retention with CompletableFuture.anyOf
4425	>	* 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
4426	>	*/
4427	>	public void testAnyOfGarbageRetention() throws Throwable {
4428	>	for (Integer v : new Integer[] { 1, null })
4429	>	{
4430	>	final int n = expensiveTests ? 100_000 : 10;
4431	>	CompletableFuture<Integer>[] fs
4432	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4433	>	for (int i = 0; i < fs.length; i++)
4434	>	fs[i] = new CompletableFuture<>();
4435	>	fs[fs.length - 1].complete(v);
4436	>	for (int i = 0; i < n; i++)
4437	>	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4438	>	}}
4439	>
4440	>	/**
4441	>	* Checks for garbage retention with allOf.
4442	>	*
4443	>	* As of 2016-07, fails with OOME:
4444	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4445	>	*/
4446	>	public void testCancelledAllOfGarbageRetention() throws Throwable {
4447	>	final int n = expensiveTests ? 100_000 : 10;
4448	>	CompletableFuture<Integer>[] fs
4449	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4450	>	for (int i = 0; i < fs.length; i++)
4451	>	fs[i] = new CompletableFuture<>();
4452	>	for (int i = 0; i < n; i++)
4453	>	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4454	>	}
4455	>
4456	>	/**
4457	>	* Checks for garbage retention when a dependent future is
4458	>	* cancelled and garbage-collected.
4459	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4460	>	*
4461	>	* As of 2016-07, fails with OOME:
4462	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4463	>	*/
4464	>	public void testCancelledGarbageRetention() throws Throwable {
4465	>	final int n = expensiveTests ? 100_000 : 10;
4466	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4467	>	for (int i = 0; i < n; i++)
4468	>	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4469	>	}
4470	>
4471	>	/**
4472	>	* Checks for garbage retention when MinimalStage.toCompletableFuture()
4473	>	* is invoked many times.
4474	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4475	>	*
4476	>	* As of 2016-07, fails with OOME:
4477	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck
4478	>	*/
4479	>	public void testToCompletableFutureGarbageRetention() throws Throwable {
4480	>	final int n = expensiveTests ? 900_000 : 10;
4481	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4482	>	CompletionStage minimal = neverCompleted.minimalCompletionStage();
4483	>	for (int i = 0; i < n; i++)
4484	>	assertTrue(minimal.toCompletableFuture().cancel(true));
4485	>	}
4486	>
4487	>	//     static <U> U join(CompletionStage<U> stage) {
4488	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4489	>	//         stage.whenComplete((v, ex) -> {
4490	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4491	>	//         });
4492	>	//         return f.join();
4493	>	//     }
4494	>
4495	>	//     static <U> boolean isDone(CompletionStage<U> stage) {
4496	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4497	>	//         stage.whenComplete((v, ex) -> {
4498	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4499	>	//         });
4500	>	//         return f.isDone();
4501	>	//     }
4502	>
4503	>	//     static <U> U join2(CompletionStage<U> stage) {
4504	>	//         return stage.toCompletableFuture().copy().join();
4505	>	//     }
4506	>
4507	>	//     static <U> boolean isDone2(CompletionStage<U> stage) {
4508	>	//         return stage.toCompletableFuture().copy().isDone();
4509	>	//     }
4510
4511		}

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