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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 1.216 by jsr166, Wed Nov 21 23:25:17 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); }
551		public CompletableFuture<Integer> apply(Integer x) {
552		invoked();
553		value = x;
554	<	CompletableFuture<Integer> f = new CompletableFuture<>();
555	<	assertTrue(f.complete(inc(x)));
556	<	return f;
554	>	return CompletableFuture.completedFuture(inc(x));
555	>	}
556	>	}
557	>
558	>	static class FailingExceptionalCompletableFutureFunction extends CheckedAction
559	>	implements Function<Throwable, CompletableFuture<Integer>>
560	>	{
561	>	final CFException ex;
562	>	FailingExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
563	>	public CompletableFuture<Integer> apply(Throwable x) {
564	>	invoked();
565	>	throw ex;
566	>	}
567	>	}
568	>
569	>	static class ExceptionalCompletableFutureFunction extends CheckedAction
570	>	implements Function<Throwable, CompletionStage<Integer>> {
571	>	final Integer value = 3;
572	>	ExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); }
573	>	public CompletionStage<Integer> apply(Throwable x) {
574	>	invoked();
575	>	return CompletableFuture.completedFuture(value);
576		}
577		}
578
579	<	class FailingCompletableFutureFunction extends CheckedIntegerAction
579	>	static class FailingCompletableFutureFunction extends CheckedIntegerAction
580		implements Function<Integer, CompletableFuture<Integer>>
581		{
582	<	FailingCompletableFutureFunction(ExecutionMode m) { super(m); }
582	>	final CFException ex;
583	>	FailingCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
584		public CompletableFuture<Integer> apply(Integer x) {
585		invoked();
586		value = x;
587	<	throw new CFException();
587	>	throw ex;
588	>	}
589	>	}
590	>
591	>	static class CountingRejectingExecutor implements Executor {
592	>	final RejectedExecutionException ex = new RejectedExecutionException();
593	>	final AtomicInteger count = new AtomicInteger(0);
594	>	public void execute(Runnable r) {
595	>	count.getAndIncrement();
596	>	throw ex;
597		}
598		}
599
#	Line 569 | Line 611 | public class CompletableFutureTest exten
611		}
612		}
613
614	+	static final boolean defaultExecutorIsCommonPool
615	+	= ForkJoinPool.getCommonPoolParallelism() > 1;
616	+
617		/**
618		* Permits the testing of parallel code for the 3 different
619		* execution modes without copy/pasting all the test methods.
620		*/
621		enum ExecutionMode {
622	<	DEFAULT {
622	>	SYNC {
623		public void checkExecutionMode() {
624		assertFalse(ThreadExecutor.startedCurrentThread());
625		assertNull(ForkJoinTask.getPool());
#	Line 646 | Line 691 | public class CompletableFutureTest exten
691		Function<? super T,U> a) {
692		return f.applyToEither(g, a);
693		}
694	+	public <T> CompletableFuture<T> exceptionally
695	+	(CompletableFuture<T> f,
696	+	Function<Throwable, ? extends T> fn) {
697	+	return f.exceptionally(fn);
698	+	}
699	+	public <T> CompletableFuture<T> exceptionallyCompose
700	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
701	+	return f.exceptionallyCompose(fn);
702	+	}
703		},
650	–
704		ASYNC {
705		public void checkExecutionMode() {
706	<	assertSame(ForkJoinPool.commonPool(),
707	<	ForkJoinTask.getPool());
706	>	assertEquals(defaultExecutorIsCommonPool,
707	>	(ForkJoinPool.commonPool() == ForkJoinTask.getPool()));
708		}
709		public CompletableFuture<Void> runAsync(Runnable a) {
710		return CompletableFuture.runAsync(a);
#	Line 720 | Line 773 | public class CompletableFutureTest exten
773		Function<? super T,U> a) {
774		return f.applyToEitherAsync(g, a);
775		}
776	+	public <T> CompletableFuture<T> exceptionally
777	+	(CompletableFuture<T> f,
778	+	Function<Throwable, ? extends T> fn) {
779	+	return f.exceptionallyAsync(fn);
780	+	}
781	+
782	+	public <T> CompletableFuture<T> exceptionallyCompose
783	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
784	+	return f.exceptionallyComposeAsync(fn);
785	+	}
786	+
787		},
788
789		EXECUTOR {
#	Line 793 | Line 857 | public class CompletableFutureTest exten
857		Function<? super T,U> a) {
858		return f.applyToEitherAsync(g, a, new ThreadExecutor());
859		}
860	+	public <T> CompletableFuture<T> exceptionally
861	+	(CompletableFuture<T> f,
862	+	Function<Throwable, ? extends T> fn) {
863	+	return f.exceptionallyAsync(fn, new ThreadExecutor());
864	+	}
865	+	public <T> CompletableFuture<T> exceptionallyCompose
866	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
867	+	return f.exceptionallyComposeAsync(fn, new ThreadExecutor());
868	+	}
869	+
870		};
871
872		public abstract void checkExecutionMode();
#	Line 835 | Line 909 | public class CompletableFutureTest exten
909		(CompletableFuture<T> f,
910		CompletionStage<? extends T> g,
911		Function<? super T,U> a);
912	+	public abstract <T> CompletableFuture<T> exceptionally
913	+	(CompletableFuture<T> f,
914	+	Function<Throwable, ? extends T> fn);
915	+	public abstract <T> CompletableFuture<T> exceptionallyCompose
916	+	(CompletableFuture<T> f,
917	+	Function<Throwable, ? extends CompletionStage<T>> fn);
918		}
919
920		/**
#	Line 842 | Line 922 | public class CompletableFutureTest exten
922		* normally, and source result is propagated
923		*/
924		public void testExceptionally_normalCompletion() {
925	+	for (ExecutionMode m : ExecutionMode.values())
926		for (boolean createIncomplete : new boolean[] { true, false })
927		for (Integer v1 : new Integer[] { 1, null })
928		{
848	–	final AtomicInteger a = new AtomicInteger(0);
929		final CompletableFuture<Integer> f = new CompletableFuture<>();
930		if (!createIncomplete) assertTrue(f.complete(v1));
931	<	final CompletableFuture<Integer> g = f.exceptionally
932	<	((Throwable t) -> {
933	<	// Should not be called
934	<	a.getAndIncrement();
855	<	throw new AssertionError();
931	>	final CompletableFuture<Integer> g = m.exceptionally
932	>	(f, (Throwable t) -> {
933	>	threadFail("should not be called");
934	>	return null;            // unreached
935		});
936		if (createIncomplete) assertTrue(f.complete(v1));
937
938		checkCompletedNormally(g, v1);
939		checkCompletedNormally(f, v1);
861	–	assertEquals(0, a.get());
940		}}
941
942		/**
#	Line 866 | Line 944 | public class CompletableFutureTest exten
944		* exception
945		*/
946		public void testExceptionally_exceptionalCompletion() {
947	+	for (ExecutionMode m : ExecutionMode.values())
948		for (boolean createIncomplete : new boolean[] { true, false })
949		for (Integer v1 : new Integer[] { 1, null })
950		{
#	Line 873 | Line 952 | public class CompletableFutureTest exten
952		final CFException ex = new CFException();
953		final CompletableFuture<Integer> f = new CompletableFuture<>();
954		if (!createIncomplete) f.completeExceptionally(ex);
955	<	final CompletableFuture<Integer> g = f.exceptionally
956	<	((Throwable t) -> {
957	<	ExecutionMode.DEFAULT.checkExecutionMode();
955	>	final CompletableFuture<Integer> g = m.exceptionally
956	>	(f, (Throwable t) -> {
957	>	m.checkExecutionMode();
958		threadAssertSame(t, ex);
959		a.getAndIncrement();
960		return v1;
#	Line 886 | Line 965 | public class CompletableFutureTest exten
965		assertEquals(1, a.get());
966		}}
967
968	+	/**
969	+	* If an "exceptionally action" throws an exception, it completes
970	+	* exceptionally with that exception
971	+	*/
972		public void testExceptionally_exceptionalCompletionActionFailed() {
973	+	for (ExecutionMode m : ExecutionMode.values())
974		for (boolean createIncomplete : new boolean[] { true, false })
891	–	for (Integer v1 : new Integer[] { 1, null })
975		{
976		final AtomicInteger a = new AtomicInteger(0);
977		final CFException ex1 = new CFException();
978		final CFException ex2 = new CFException();
979		final CompletableFuture<Integer> f = new CompletableFuture<>();
980		if (!createIncomplete) f.completeExceptionally(ex1);
981	<	final CompletableFuture<Integer> g = f.exceptionally
982	<	((Throwable t) -> {
983	<	ExecutionMode.DEFAULT.checkExecutionMode();
981	>	final CompletableFuture<Integer> g = m.exceptionally
982	>	(f, (Throwable t) -> {
983	>	m.checkExecutionMode();
984		threadAssertSame(t, ex1);
985		a.getAndIncrement();
986		throw ex2;
#	Line 905 | Line 988 | public class CompletableFutureTest exten
988		if (createIncomplete) f.completeExceptionally(ex1);
989
990		checkCompletedWithWrappedException(g, ex2);
991	+	checkCompletedExceptionally(f, ex1);
992		assertEquals(1, a.get());
993		}}
994
#	Line 912 | Line 996 | public class CompletableFutureTest exten
996		* whenComplete action executes on normal completion, propagating
997		* source result.
998		*/
999	<	public void testWhenComplete_normalCompletion1() {
999	>	public void testWhenComplete_normalCompletion() {
1000		for (ExecutionMode m : ExecutionMode.values())
1001		for (boolean createIncomplete : new boolean[] { true, false })
1002		for (Integer v1 : new Integer[] { 1, null })
#	Line 922 | Line 1006 | public class CompletableFutureTest exten
1006		if (!createIncomplete) assertTrue(f.complete(v1));
1007		final CompletableFuture<Integer> g = m.whenComplete
1008		(f,
1009	<	(Integer x, Throwable t) -> {
1009	>	(Integer result, Throwable t) -> {
1010		m.checkExecutionMode();
1011	<	threadAssertSame(x, v1);
1011	>	threadAssertSame(result, v1);
1012		threadAssertNull(t);
1013		a.getAndIncrement();
1014		});
#	Line 942 | Line 1026 | public class CompletableFutureTest exten
1026		public void testWhenComplete_exceptionalCompletion() {
1027		for (ExecutionMode m : ExecutionMode.values())
1028		for (boolean createIncomplete : new boolean[] { true, false })
945	–	for (Integer v1 : new Integer[] { 1, null })
1029		{
1030		final AtomicInteger a = new AtomicInteger(0);
1031		final CFException ex = new CFException();
#	Line 950 | Line 1033 | public class CompletableFutureTest exten
1033		if (!createIncomplete) f.completeExceptionally(ex);
1034		final CompletableFuture<Integer> g = m.whenComplete
1035		(f,
1036	<	(Integer x, Throwable t) -> {
1036	>	(Integer result, Throwable t) -> {
1037		m.checkExecutionMode();
1038	<	threadAssertNull(x);
1038	>	threadAssertNull(result);
1039		threadAssertSame(t, ex);
1040		a.getAndIncrement();
1041		});
#	Line 977 | Line 1060 | public class CompletableFutureTest exten
1060		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1061		final CompletableFuture<Integer> g = m.whenComplete
1062		(f,
1063	<	(Integer x, Throwable t) -> {
1063	>	(Integer result, Throwable t) -> {
1064		m.checkExecutionMode();
1065	<	threadAssertNull(x);
1065	>	threadAssertNull(result);
1066		threadAssertTrue(t instanceof CancellationException);
1067		a.getAndIncrement();
1068		});
#	Line 994 | Line 1077 | public class CompletableFutureTest exten
1077		* If a whenComplete action throws an exception when triggered by
1078		* a normal completion, it completes exceptionally
1079		*/
1080	<	public void testWhenComplete_actionFailed() {
1080	>	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
1081		for (boolean createIncomplete : new boolean[] { true, false })
1082		for (ExecutionMode m : ExecutionMode.values())
1083		for (Integer v1 : new Integer[] { 1, null })
#	Line 1005 | Line 1088 | public class CompletableFutureTest exten
1088		if (!createIncomplete) assertTrue(f.complete(v1));
1089		final CompletableFuture<Integer> g = m.whenComplete
1090		(f,
1091	<	(Integer x, Throwable t) -> {
1091	>	(Integer result, Throwable t) -> {
1092		m.checkExecutionMode();
1093	<	threadAssertSame(x, v1);
1093	>	threadAssertSame(result, v1);
1094		threadAssertNull(t);
1095		a.getAndIncrement();
1096		throw ex;
#	Line 1022 | Line 1105 | public class CompletableFutureTest exten
1105		/**
1106		* If a whenComplete action throws an exception when triggered by
1107		* a source completion that also throws an exception, the source
1108	<	* exception takes precedence.
1108	>	* exception takes precedence (unlike handle)
1109		*/
1110	<	public void testWhenComplete_actionFailedSourceFailed() {
1110	>	public void testWhenComplete_sourceFailedActionFailed() {
1111		for (boolean createIncomplete : new boolean[] { true, false })
1112		for (ExecutionMode m : ExecutionMode.values())
1030	–	for (Integer v1 : new Integer[] { 1, null })
1113		{
1114		final AtomicInteger a = new AtomicInteger(0);
1115		final CFException ex1 = new CFException();
#	Line 1037 | Line 1119 | public class CompletableFutureTest exten
1119		if (!createIncomplete) f.completeExceptionally(ex1);
1120		final CompletableFuture<Integer> g = m.whenComplete
1121		(f,
1122	<	(Integer x, Throwable t) -> {
1122	>	(Integer result, Throwable t) -> {
1123		m.checkExecutionMode();
1124		threadAssertSame(t, ex1);
1125	<	threadAssertNull(x);
1125	>	threadAssertNull(result);
1126		a.getAndIncrement();
1127		throw ex2;
1128		});
#	Line 1048 | Line 1130 | public class CompletableFutureTest exten
1130
1131		checkCompletedWithWrappedException(g, ex1);
1132		checkCompletedExceptionally(f, ex1);
1133	+	if (testImplementationDetails) {
1134	+	assertEquals(1, ex1.getSuppressed().length);
1135	+	assertSame(ex2, ex1.getSuppressed()[0]);
1136	+	}
1137		assertEquals(1, a.get());
1138		}}
1139
#	Line 1065 | Line 1151 | public class CompletableFutureTest exten
1151		if (!createIncomplete) assertTrue(f.complete(v1));
1152		final CompletableFuture<Integer> g = m.handle
1153		(f,
1154	<	(Integer x, Throwable t) -> {
1154	>	(Integer result, Throwable t) -> {
1155		m.checkExecutionMode();
1156	<	threadAssertSame(x, v1);
1156	>	threadAssertSame(result, v1);
1157		threadAssertNull(t);
1158		a.getAndIncrement();
1159		return inc(v1);
#	Line 1094 | Line 1180 | public class CompletableFutureTest exten
1180		if (!createIncomplete) f.completeExceptionally(ex);
1181		final CompletableFuture<Integer> g = m.handle
1182		(f,
1183	<	(Integer x, Throwable t) -> {
1183	>	(Integer result, Throwable t) -> {
1184		m.checkExecutionMode();
1185	<	threadAssertNull(x);
1185	>	threadAssertNull(result);
1186		threadAssertSame(t, ex);
1187		a.getAndIncrement();
1188		return v1;
#	Line 1123 | Line 1209 | public class CompletableFutureTest exten
1209		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1210		final CompletableFuture<Integer> g = m.handle
1211		(f,
1212	<	(Integer x, Throwable t) -> {
1212	>	(Integer result, Throwable t) -> {
1213		m.checkExecutionMode();
1214	<	threadAssertNull(x);
1214	>	threadAssertNull(result);
1215		threadAssertTrue(t instanceof CancellationException);
1216		a.getAndIncrement();
1217		return v1;
#	Line 1138 | Line 1224 | public class CompletableFutureTest exten
1224		}}
1225
1226		/**
1227	<	* handle result completes exceptionally if action does
1227	>	* If a "handle action" throws an exception when triggered by
1228	>	* a normal completion, it completes exceptionally
1229		*/
1230	<	public void testHandle_sourceFailedActionFailed() {
1230	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1231		for (ExecutionMode m : ExecutionMode.values())
1232		for (boolean createIncomplete : new boolean[] { true, false })
1233	+	for (Integer v1 : new Integer[] { 1, null })
1234		{
1235		final CompletableFuture<Integer> f = new CompletableFuture<>();
1236		final AtomicInteger a = new AtomicInteger(0);
1237	<	final CFException ex1 = new CFException();
1238	<	final CFException ex2 = new CFException();
1151	<	if (!createIncomplete) f.completeExceptionally(ex1);
1237	>	final CFException ex = new CFException();
1238	>	if (!createIncomplete) assertTrue(f.complete(v1));
1239		final CompletableFuture<Integer> g = m.handle
1240		(f,
1241	<	(Integer x, Throwable t) -> {
1241	>	(Integer result, Throwable t) -> {
1242		m.checkExecutionMode();
1243	<	threadAssertNull(x);
1244	<	threadAssertSame(ex1, t);
1243	>	threadAssertSame(result, v1);
1244	>	threadAssertNull(t);
1245		a.getAndIncrement();
1246	<	throw ex2;
1246	>	throw ex;
1247		});
1248	<	if (createIncomplete) f.completeExceptionally(ex1);
1248	>	if (createIncomplete) assertTrue(f.complete(v1));
1249
1250	<	checkCompletedWithWrappedException(g, ex2);
1251	<	checkCompletedExceptionally(f, ex1);
1250	>	checkCompletedWithWrappedException(g, ex);
1251	>	checkCompletedNormally(f, v1);
1252		assertEquals(1, a.get());
1253		}}
1254
1255	<	public void testHandle_sourceCompletedNormallyActionFailed() {
1256	<	for (ExecutionMode m : ExecutionMode.values())
1255	>	/**
1256	>	* If a "handle action" throws an exception when triggered by
1257	>	* a source completion that also throws an exception, the action
1258	>	* exception takes precedence (unlike whenComplete)
1259	>	*/
1260	>	public void testHandle_sourceFailedActionFailed() {
1261		for (boolean createIncomplete : new boolean[] { true, false })
1262	<	for (Integer v1 : new Integer[] { 1, null })
1262	>	for (ExecutionMode m : ExecutionMode.values())
1263		{
1173	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
1264		final AtomicInteger a = new AtomicInteger(0);
1265	<	final CFException ex = new CFException();
1266	<	if (!createIncomplete) assertTrue(f.complete(v1));
1265	>	final CFException ex1 = new CFException();
1266	>	final CFException ex2 = new CFException();
1267	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1268	>
1269	>	if (!createIncomplete) f.completeExceptionally(ex1);
1270		final CompletableFuture<Integer> g = m.handle
1271		(f,
1272	<	(Integer x, Throwable t) -> {
1272	>	(Integer result, Throwable t) -> {
1273		m.checkExecutionMode();
1274	<	threadAssertSame(x, v1);
1275	<	threadAssertNull(t);
1274	>	threadAssertNull(result);
1275	>	threadAssertSame(ex1, t);
1276		a.getAndIncrement();
1277	<	throw ex;
1277	>	throw ex2;
1278		});
1279	<	if (createIncomplete) assertTrue(f.complete(v1));
1279	>	if (createIncomplete) f.completeExceptionally(ex1);
1280
1281	<	checkCompletedWithWrappedException(g, ex);
1282	<	checkCompletedNormally(f, v1);
1281	>	checkCompletedWithWrappedException(g, ex2);
1282	>	checkCompletedExceptionally(f, ex1);
1283		assertEquals(1, a.get());
1284		}}
1285
#	Line 1219 | Line 1312 | public class CompletableFutureTest exten
1312		{
1313		final FailingRunnable r = new FailingRunnable(m);
1314		final CompletableFuture<Void> f = m.runAsync(r);
1315	<	checkCompletedWithWrappedCFException(f);
1315	>	checkCompletedWithWrappedException(f, r.ex);
1316		r.assertInvoked();
1317		}}
1318
1319	+	@SuppressWarnings("FutureReturnValueIgnored")
1320	+	public void testRunAsync_rejectingExecutor() {
1321	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1322	+	try {
1323	+	CompletableFuture.runAsync(() -> {}, e);
1324	+	shouldThrow();
1325	+	} catch (Throwable t) {
1326	+	assertSame(e.ex, t);
1327	+	}
1328	+
1329	+	assertEquals(1, e.count.get());
1330	+	}
1331	+
1332		/**
1333		* supplyAsync completes with result of supplier
1334		*/
#	Line 1253 | Line 1359 | public class CompletableFutureTest exten
1359		{
1360		FailingSupplier r = new FailingSupplier(m);
1361		CompletableFuture<Integer> f = m.supplyAsync(r);
1362	<	checkCompletedWithWrappedCFException(f);
1362	>	checkCompletedWithWrappedException(f, r.ex);
1363		r.assertInvoked();
1364		}}
1365
1366	+	@SuppressWarnings("FutureReturnValueIgnored")
1367	+	public void testSupplyAsync_rejectingExecutor() {
1368	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1369	+	try {
1370	+	CompletableFuture.supplyAsync(() -> null, e);
1371	+	shouldThrow();
1372	+	} catch (Throwable t) {
1373	+	assertSame(e.ex, t);
1374	+	}
1375	+
1376	+	assertEquals(1, e.count.get());
1377	+	}
1378	+
1379		// seq completion methods
1380
1381		/**
#	Line 1264 | Line 1383 | public class CompletableFutureTest exten
1383		*/
1384		public void testThenRun_normalCompletion() {
1385		for (ExecutionMode m : ExecutionMode.values())
1267	–	for (boolean createIncomplete : new boolean[] { true, false })
1386		for (Integer v1 : new Integer[] { 1, null })
1387		{
1388		final CompletableFuture<Integer> f = new CompletableFuture<>();
1389	<	final Noop r = new Noop(m);
1390	<	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	<	}
1389	>	final Noop[] rs = new Noop[6];
1390	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1391
1392	<	checkCompletedNormally(g, null);
1392	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1393	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1394	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1395	>	checkIncomplete(h0);
1396	>	checkIncomplete(h1);
1397	>	checkIncomplete(h2);
1398	>	assertTrue(f.complete(v1));
1399	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1400	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1401	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1402	>
1403	>	checkCompletedNormally(h0, null);
1404	>	checkCompletedNormally(h1, null);
1405	>	checkCompletedNormally(h2, null);
1406	>	checkCompletedNormally(h3, null);
1407	>	checkCompletedNormally(h4, null);
1408	>	checkCompletedNormally(h5, null);
1409		checkCompletedNormally(f, v1);
1410	<	r.assertInvoked();
1410	>	for (Noop r : rs) r.assertInvoked();
1411		}}
1412
1413		/**
#	Line 1287 | Line 1416 | public class CompletableFutureTest exten
1416		*/
1417		public void testThenRun_exceptionalCompletion() {
1418		for (ExecutionMode m : ExecutionMode.values())
1290	–	for (boolean createIncomplete : new boolean[] { true, false })
1419		{
1420		final CFException ex = new CFException();
1421		final CompletableFuture<Integer> f = new CompletableFuture<>();
1422	<	final Noop r = new Noop(m);
1423	<	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	<	}
1422	>	final Noop[] rs = new Noop[6];
1423	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1424
1425	<	checkCompletedWithWrappedException(g, ex);
1425	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1426	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1427	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1428	>	checkIncomplete(h0);
1429	>	checkIncomplete(h1);
1430	>	checkIncomplete(h2);
1431	>	assertTrue(f.completeExceptionally(ex));
1432	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1433	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1434	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1435	>
1436	>	checkCompletedWithWrappedException(h0, ex);
1437	>	checkCompletedWithWrappedException(h1, ex);
1438	>	checkCompletedWithWrappedException(h2, ex);
1439	>	checkCompletedWithWrappedException(h3, ex);
1440	>	checkCompletedWithWrappedException(h4, ex);
1441	>	checkCompletedWithWrappedException(h5, ex);
1442		checkCompletedExceptionally(f, ex);
1443	<	r.assertNotInvoked();
1443	>	for (Noop r : rs) r.assertNotInvoked();
1444		}}
1445
1446		/**
#	Line 1309 | Line 1448 | public class CompletableFutureTest exten
1448		*/
1449		public void testThenRun_sourceCancelled() {
1450		for (ExecutionMode m : ExecutionMode.values())
1312	–	for (boolean createIncomplete : new boolean[] { true, false })
1451		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1452		{
1453		final CompletableFuture<Integer> f = new CompletableFuture<>();
1454	<	final Noop r = new Noop(m);
1455	<	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	<	}
1454	>	final Noop[] rs = new Noop[6];
1455	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1456
1457	<	checkCompletedWithWrappedCancellationException(g);
1457	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1458	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1459	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1460	>	checkIncomplete(h0);
1461	>	checkIncomplete(h1);
1462	>	checkIncomplete(h2);
1463	>	assertTrue(f.cancel(mayInterruptIfRunning));
1464	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1465	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1466	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1467	>
1468	>	checkCompletedWithWrappedCancellationException(h0);
1469	>	checkCompletedWithWrappedCancellationException(h1);
1470	>	checkCompletedWithWrappedCancellationException(h2);
1471	>	checkCompletedWithWrappedCancellationException(h3);
1472	>	checkCompletedWithWrappedCancellationException(h4);
1473	>	checkCompletedWithWrappedCancellationException(h5);
1474		checkCancelled(f);
1475	<	r.assertNotInvoked();
1475	>	for (Noop r : rs) r.assertNotInvoked();
1476		}}
1477
1478		/**
#	Line 1331 | Line 1480 | public class CompletableFutureTest exten
1480		*/
1481		public void testThenRun_actionFailed() {
1482		for (ExecutionMode m : ExecutionMode.values())
1334	–	for (boolean createIncomplete : new boolean[] { true, false })
1483		for (Integer v1 : new Integer[] { 1, null })
1484		{
1485		final CompletableFuture<Integer> f = new CompletableFuture<>();
1486	<	final FailingRunnable r = new FailingRunnable(m);
1487	<	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	<	}
1486	>	final FailingRunnable[] rs = new FailingRunnable[6];
1487	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1488
1489	<	checkCompletedWithWrappedCFException(g);
1489	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1490	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1491	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1492	>	assertTrue(f.complete(v1));
1493	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1494	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1495	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1496	>
1497	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1498	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1499	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1500	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1501	>	checkCompletedWithWrappedException(h4, rs[4].ex);
1502	>	checkCompletedWithWrappedException(h5, rs[5].ex);
1503		checkCompletedNormally(f, v1);
1504		}}
1505
#	Line 1352 | Line 1508 | public class CompletableFutureTest exten
1508		*/
1509		public void testThenApply_normalCompletion() {
1510		for (ExecutionMode m : ExecutionMode.values())
1355	–	for (boolean createIncomplete : new boolean[] { true, false })
1511		for (Integer v1 : new Integer[] { 1, null })
1512		{
1513		final CompletableFuture<Integer> f = new CompletableFuture<>();
1514	<	final IncFunction r = new IncFunction(m);
1515	<	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	<	}
1514	>	final IncFunction[] rs = new IncFunction[4];
1515	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1516
1517	<	checkCompletedNormally(g, inc(v1));
1517	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1518	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1519	>	checkIncomplete(h0);
1520	>	checkIncomplete(h1);
1521	>	assertTrue(f.complete(v1));
1522	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1523	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1524	>
1525	>	checkCompletedNormally(h0, inc(v1));
1526	>	checkCompletedNormally(h1, inc(v1));
1527	>	checkCompletedNormally(h2, inc(v1));
1528	>	checkCompletedNormally(h3, inc(v1));
1529		checkCompletedNormally(f, v1);
1530	<	r.assertValue(inc(v1));
1530	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1531		}}
1532
1533		/**
#	Line 1375 | Line 1536 | public class CompletableFutureTest exten
1536		*/
1537		public void testThenApply_exceptionalCompletion() {
1538		for (ExecutionMode m : ExecutionMode.values())
1378	–	for (boolean createIncomplete : new boolean[] { true, false })
1539		{
1540		final CFException ex = new CFException();
1541		final CompletableFuture<Integer> f = new CompletableFuture<>();
1542	<	final IncFunction r = new IncFunction(m);
1543	<	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	<	}
1542	>	final IncFunction[] rs = new IncFunction[4];
1543	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1544
1545	<	checkCompletedWithWrappedException(g, ex);
1545	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1546	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1547	>	assertTrue(f.completeExceptionally(ex));
1548	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1549	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1550	>
1551	>	checkCompletedWithWrappedException(h0, ex);
1552	>	checkCompletedWithWrappedException(h1, ex);
1553	>	checkCompletedWithWrappedException(h2, ex);
1554	>	checkCompletedWithWrappedException(h3, ex);
1555		checkCompletedExceptionally(f, ex);
1556	<	r.assertNotInvoked();
1556	>	for (IncFunction r : rs) r.assertNotInvoked();
1557		}}
1558
1559		/**
#	Line 1397 | Line 1561 | public class CompletableFutureTest exten
1561		*/
1562		public void testThenApply_sourceCancelled() {
1563		for (ExecutionMode m : ExecutionMode.values())
1400	–	for (boolean createIncomplete : new boolean[] { true, false })
1564		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1565		{
1566		final CompletableFuture<Integer> f = new CompletableFuture<>();
1567	<	final IncFunction r = new IncFunction(m);
1568	<	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	<	}
1567	>	final IncFunction[] rs = new IncFunction[4];
1568	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1569
1570	<	checkCompletedWithWrappedCancellationException(g);
1570	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1571	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1572	>	assertTrue(f.cancel(mayInterruptIfRunning));
1573	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1574	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1575	>
1576	>	checkCompletedWithWrappedCancellationException(h0);
1577	>	checkCompletedWithWrappedCancellationException(h1);
1578	>	checkCompletedWithWrappedCancellationException(h2);
1579	>	checkCompletedWithWrappedCancellationException(h3);
1580		checkCancelled(f);
1581	<	r.assertNotInvoked();
1581	>	for (IncFunction r : rs) r.assertNotInvoked();
1582		}}
1583
1584		/**
#	Line 1419 | Line 1586 | public class CompletableFutureTest exten
1586		*/
1587		public void testThenApply_actionFailed() {
1588		for (ExecutionMode m : ExecutionMode.values())
1422	–	for (boolean createIncomplete : new boolean[] { true, false })
1589		for (Integer v1 : new Integer[] { 1, null })
1590		{
1591		final CompletableFuture<Integer> f = new CompletableFuture<>();
1592	<	final FailingFunction r = new FailingFunction(m);
1593	<	if (!createIncomplete) assertTrue(f.complete(v1));
1428	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1429	<	if (createIncomplete) {
1430	<	checkIncomplete(g);
1431	<	assertTrue(f.complete(v1));
1432	<	}
1592	>	final FailingFunction[] rs = new FailingFunction[4];
1593	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1594
1595	<	checkCompletedWithWrappedCFException(g);
1595	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1596	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1597	>	assertTrue(f.complete(v1));
1598	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1599	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1600	>
1601	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1602	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1603	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1604	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1605		checkCompletedNormally(f, v1);
1606		}}
1607
#	Line 1440 | Line 1610 | public class CompletableFutureTest exten
1610		*/
1611		public void testThenAccept_normalCompletion() {
1612		for (ExecutionMode m : ExecutionMode.values())
1443	–	for (boolean createIncomplete : new boolean[] { true, false })
1613		for (Integer v1 : new Integer[] { 1, null })
1614		{
1615		final CompletableFuture<Integer> f = new CompletableFuture<>();
1616	<	final NoopConsumer r = new NoopConsumer(m);
1617	<	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	<	}
1616	>	final NoopConsumer[] rs = new NoopConsumer[4];
1617	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1618
1619	<	checkCompletedNormally(g, null);
1620	<	r.assertValue(v1);
1619	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1620	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1621	>	checkIncomplete(h0);
1622	>	checkIncomplete(h1);
1623	>	assertTrue(f.complete(v1));
1624	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1625	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1626	>
1627	>	checkCompletedNormally(h0, null);
1628	>	checkCompletedNormally(h1, null);
1629	>	checkCompletedNormally(h2, null);
1630	>	checkCompletedNormally(h3, null);
1631		checkCompletedNormally(f, v1);
1632	+	for (NoopConsumer r : rs) r.assertValue(v1);
1633		}}
1634
1635		/**
#	Line 1463 | Line 1638 | public class CompletableFutureTest exten
1638		*/
1639		public void testThenAccept_exceptionalCompletion() {
1640		for (ExecutionMode m : ExecutionMode.values())
1466	–	for (boolean createIncomplete : new boolean[] { true, false })
1641		{
1642		final CFException ex = new CFException();
1643		final CompletableFuture<Integer> f = new CompletableFuture<>();
1644	<	final NoopConsumer r = new NoopConsumer(m);
1645	<	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	<	}
1644	>	final NoopConsumer[] rs = new NoopConsumer[4];
1645	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1646
1647	<	checkCompletedWithWrappedException(g, ex);
1647	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1648	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1649	>	assertTrue(f.completeExceptionally(ex));
1650	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1651	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1652	>
1653	>	checkCompletedWithWrappedException(h0, ex);
1654	>	checkCompletedWithWrappedException(h1, ex);
1655	>	checkCompletedWithWrappedException(h2, ex);
1656	>	checkCompletedWithWrappedException(h3, ex);
1657		checkCompletedExceptionally(f, ex);
1658	<	r.assertNotInvoked();
1658	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1659		}}
1660
1661		/**
#	Line 1485 | Line 1663 | public class CompletableFutureTest exten
1663		*/
1664		public void testThenAccept_sourceCancelled() {
1665		for (ExecutionMode m : ExecutionMode.values())
1488	–	for (boolean createIncomplete : new boolean[] { true, false })
1666		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1667		{
1668		final CompletableFuture<Integer> f = new CompletableFuture<>();
1669	<	final NoopConsumer r = new NoopConsumer(m);
1670	<	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	<	}
1669	>	final NoopConsumer[] rs = new NoopConsumer[4];
1670	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1671
1672	<	checkCompletedWithWrappedCancellationException(g);
1672	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1673	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1674	>	assertTrue(f.cancel(mayInterruptIfRunning));
1675	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1676	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1677	>
1678	>	checkCompletedWithWrappedCancellationException(h0);
1679	>	checkCompletedWithWrappedCancellationException(h1);
1680	>	checkCompletedWithWrappedCancellationException(h2);
1681	>	checkCompletedWithWrappedCancellationException(h3);
1682		checkCancelled(f);
1683	<	r.assertNotInvoked();
1683	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1684		}}
1685
1686		/**
#	Line 1507 | Line 1688 | public class CompletableFutureTest exten
1688		*/
1689		public void testThenAccept_actionFailed() {
1690		for (ExecutionMode m : ExecutionMode.values())
1510	–	for (boolean createIncomplete : new boolean[] { true, false })
1691		for (Integer v1 : new Integer[] { 1, null })
1692		{
1693		final CompletableFuture<Integer> f = new CompletableFuture<>();
1694	<	final FailingConsumer r = new FailingConsumer(m);
1695	<	if (!createIncomplete) f.complete(v1);
1696	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1697	<	if (createIncomplete) {
1698	<	checkIncomplete(g);
1699	<	f.complete(v1);
1700	<	}
1694	>	final FailingConsumer[] rs = new FailingConsumer[4];
1695	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1696	>
1697	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1698	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1699	>	assertTrue(f.complete(v1));
1700	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1701	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1702
1703	<	checkCompletedWithWrappedCFException(g);
1703	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1704	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1705	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1706	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1707		checkCompletedNormally(f, v1);
1708		}}
1709
#	Line 1535 | Line 1719 | public class CompletableFutureTest exten
1719		{
1720		final CompletableFuture<Integer> f = new CompletableFuture<>();
1721		final CompletableFuture<Integer> g = new CompletableFuture<>();
1722	<	final SubtractFunction r1 = new SubtractFunction(m);
1723	<	final SubtractFunction r2 = new SubtractFunction(m);
1540	<	final SubtractFunction r3 = new SubtractFunction(m);
1722	>	final SubtractFunction[] rs = new SubtractFunction[6];
1723	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1724
1725		final CompletableFuture<Integer> fst =  fFirst ? f : g;
1726		final CompletableFuture<Integer> snd = !fFirst ? f : g;
1727		final Integer w1 =  fFirst ? v1 : v2;
1728		final Integer w2 = !fFirst ? v1 : v2;
1729
1730	<	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1730	>	final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1731	>	final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1732		assertTrue(fst.complete(w1));
1733	<	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1734	<	checkIncomplete(h1);
1735	<	checkIncomplete(h2);
1736	<	r1.assertNotInvoked();
1737	<	r2.assertNotInvoked();
1733	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1734	>	final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1735	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1736	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1737	>	checkCompletedNormally(h1, subtract(w1, w1));
1738	>	checkCompletedNormally(h3, subtract(w1, w1));
1739	>	rs[1].assertValue(subtract(w1, w1));
1740	>	rs[3].assertValue(subtract(w1, w1));
1741		assertTrue(snd.complete(w2));
1742	<	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1742	>	final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1743
1744	<	checkCompletedNormally(h1, subtract(v1, v2));
1744	>	checkCompletedNormally(h0, subtract(v1, v2));
1745		checkCompletedNormally(h2, subtract(v1, v2));
1746	<	checkCompletedNormally(h3, subtract(v1, v2));
1747	<	r1.assertValue(subtract(v1, v2));
1748	<	r2.assertValue(subtract(v1, v2));
1749	<	r3.assertValue(subtract(v1, v2));
1746	>	checkCompletedNormally(h4, subtract(v1, v2));
1747	>	rs[0].assertValue(subtract(v1, v2));
1748	>	rs[2].assertValue(subtract(v1, v2));
1749	>	rs[4].assertValue(subtract(v1, v2));
1750	>
1751		checkCompletedNormally(f, v1);
1752		checkCompletedNormally(g, v2);
1753		}}
#	Line 1677 | Line 1865 | public class CompletableFutureTest exten
1865		assertTrue(snd.complete(w2));
1866		final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1867
1868	<	checkCompletedWithWrappedCFException(h1);
1869	<	checkCompletedWithWrappedCFException(h2);
1870	<	checkCompletedWithWrappedCFException(h3);
1868	>	checkCompletedWithWrappedException(h1, r1.ex);
1869	>	checkCompletedWithWrappedException(h2, r2.ex);
1870	>	checkCompletedWithWrappedException(h3, r3.ex);
1871	>	r1.assertInvoked();
1872	>	r2.assertInvoked();
1873	>	r3.assertInvoked();
1874		checkCompletedNormally(f, v1);
1875		checkCompletedNormally(g, v2);
1876		}}
#	Line 1838 | Line 2029 | public class CompletableFutureTest exten
2029		assertTrue(snd.complete(w2));
2030		final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
2031
2032	<	checkCompletedWithWrappedCFException(h1);
2033	<	checkCompletedWithWrappedCFException(h2);
2034	<	checkCompletedWithWrappedCFException(h3);
2032	>	checkCompletedWithWrappedException(h1, r1.ex);
2033	>	checkCompletedWithWrappedException(h2, r2.ex);
2034	>	checkCompletedWithWrappedException(h3, r3.ex);
2035	>	r1.assertInvoked();
2036	>	r2.assertInvoked();
2037	>	r3.assertInvoked();
2038		checkCompletedNormally(f, v1);
2039		checkCompletedNormally(g, v2);
2040		}}
#	Line 1851 | Line 2045 | public class CompletableFutureTest exten
2045		*/
2046		public void testRunAfterBoth_normalCompletion() {
2047		for (ExecutionMode m : ExecutionMode.values())
1854	–	for (boolean createIncomplete : new boolean[] { true, false })
2048		for (boolean fFirst : new boolean[] { true, false })
2049		for (Integer v1 : new Integer[] { 1, null })
2050		for (Integer v2 : new Integer[] { 2, null })
2051		{
2052		final CompletableFuture<Integer> f = new CompletableFuture<>();
2053		final CompletableFuture<Integer> g = new CompletableFuture<>();
2054	<	final Noop r = new Noop(m);
2054	>	final Noop r1 = new Noop(m);
2055	>	final Noop r2 = new Noop(m);
2056	>	final Noop r3 = new Noop(m);
2057
2058	<	assertTrue(fFirst ? f.complete(v1) : g.complete(v2));
2059	<	if (!createIncomplete)
2060	<	assertTrue(!fFirst ? f.complete(v1) : g.complete(v2));
2061	<	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	<	}
2058	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2059	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2060	>	final Integer w1 =  fFirst ? v1 : v2;
2061	>	final Integer w2 = !fFirst ? v1 : v2;
2062
2063	<	checkCompletedNormally(h, null);
2064	<	r.assertInvoked();
2063	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2064	>	assertTrue(fst.complete(w1));
2065	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2066	>	checkIncomplete(h1);
2067	>	checkIncomplete(h2);
2068	>	r1.assertNotInvoked();
2069	>	r2.assertNotInvoked();
2070	>	assertTrue(snd.complete(w2));
2071	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2072	>
2073	>	checkCompletedNormally(h1, null);
2074	>	checkCompletedNormally(h2, null);
2075	>	checkCompletedNormally(h3, null);
2076	>	r1.assertInvoked();
2077	>	r2.assertInvoked();
2078	>	r3.assertInvoked();
2079		checkCompletedNormally(f, v1);
2080		checkCompletedNormally(g, v2);
2081		}}
#	Line 1880 | Line 2084 | public class CompletableFutureTest exten
2084		* runAfterBoth result completes exceptionally after exceptional
2085		* completion of either source
2086		*/
2087	<	public void testRunAfterBoth_exceptionalCompletion() {
2087	>	public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
2088		for (ExecutionMode m : ExecutionMode.values())
1885	–	for (boolean createIncomplete : new boolean[] { true, false })
2089		for (boolean fFirst : new boolean[] { true, false })
2090	+	for (boolean failFirst : new boolean[] { true, false })
2091		for (Integer v1 : new Integer[] { 1, null })
2092		{
2093		final CompletableFuture<Integer> f = new CompletableFuture<>();
2094		final CompletableFuture<Integer> g = new CompletableFuture<>();
2095		final CFException ex = new CFException();
2096	<	final Noop r = new Noop(m);
2096	>	final Noop r1 = new Noop(m);
2097	>	final Noop r2 = new Noop(m);
2098	>	final Noop r3 = new Noop(m);
2099
2100	<	assertTrue((fFirst ? f : g).complete(v1));
2101	<	if (!createIncomplete)
2102	<	assertTrue((!fFirst ? f : g).completeExceptionally(ex));
2103	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2104	<	if (createIncomplete) {
2105	<	checkIncomplete(h);
2106	<	assertTrue((!fFirst ? f : g).completeExceptionally(ex));
2107	<	}
2100	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2101	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2102	>	final Callable<Boolean> complete1 = failFirst ?
2103	>	() -> fst.completeExceptionally(ex) :
2104	>	() -> fst.complete(v1);
2105	>	final Callable<Boolean> complete2 = failFirst ?
2106	>	() -> snd.complete(v1) :
2107	>	() -> snd.completeExceptionally(ex);
2108
2109	<	checkCompletedWithWrappedException(h, ex);
2110	<	r.assertNotInvoked();
2111	<	checkCompletedNormally(fFirst ? f : g, v1);
2112	<	checkCompletedExceptionally(!fFirst ? f : g, ex);
2109	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2110	>	assertTrue(complete1.call());
2111	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2112	>	checkIncomplete(h1);
2113	>	checkIncomplete(h2);
2114	>	assertTrue(complete2.call());
2115	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2116	>
2117	>	checkCompletedWithWrappedException(h1, ex);
2118	>	checkCompletedWithWrappedException(h2, ex);
2119	>	checkCompletedWithWrappedException(h3, ex);
2120	>	r1.assertNotInvoked();
2121	>	r2.assertNotInvoked();
2122	>	r3.assertNotInvoked();
2123	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2124	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
2125		}}
2126
2127		/**
2128		* runAfterBoth result completes exceptionally if either source cancelled
2129		*/
2130	<	public void testRunAfterBoth_sourceCancelled() {
2130	>	public void testRunAfterBoth_sourceCancelled() throws Throwable {
2131		for (ExecutionMode m : ExecutionMode.values())
2132		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1915	–	for (boolean createIncomplete : new boolean[] { true, false })
2133		for (boolean fFirst : new boolean[] { true, false })
2134	+	for (boolean failFirst : new boolean[] { true, false })
2135		for (Integer v1 : new Integer[] { 1, null })
2136		{
2137		final CompletableFuture<Integer> f = new CompletableFuture<>();
2138		final CompletableFuture<Integer> g = new CompletableFuture<>();
2139	<	final Noop r = new Noop(m);
2139	>	final Noop r1 = new Noop(m);
2140	>	final Noop r2 = new Noop(m);
2141	>	final Noop r3 = new Noop(m);
2142
2143	<	assertTrue((fFirst ? f : g).complete(v1));
2144	<	if (!createIncomplete)
2145	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
2146	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2147	<	if (createIncomplete) {
2148	<	checkIncomplete(h);
2149	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
2150	<	}
2143	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2144	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2145	>	final Callable<Boolean> complete1 = failFirst ?
2146	>	() -> fst.cancel(mayInterruptIfRunning) :
2147	>	() -> fst.complete(v1);
2148	>	final Callable<Boolean> complete2 = failFirst ?
2149	>	() -> snd.complete(v1) :
2150	>	() -> snd.cancel(mayInterruptIfRunning);
2151
2152	<	checkCompletedWithWrappedCancellationException(h);
2153	<	checkCancelled(!fFirst ? f : g);
2154	<	r.assertNotInvoked();
2155	<	checkCompletedNormally(fFirst ? f : g, v1);
2152	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2153	>	assertTrue(complete1.call());
2154	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2155	>	checkIncomplete(h1);
2156	>	checkIncomplete(h2);
2157	>	assertTrue(complete2.call());
2158	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2159	>
2160	>	checkCompletedWithWrappedCancellationException(h1);
2161	>	checkCompletedWithWrappedCancellationException(h2);
2162	>	checkCompletedWithWrappedCancellationException(h3);
2163	>	r1.assertNotInvoked();
2164	>	r2.assertNotInvoked();
2165	>	r3.assertNotInvoked();
2166	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2167	>	checkCancelled(failFirst ? fst : snd);
2168		}}
2169
2170		/**
#	Line 1948 | Line 2180 | public class CompletableFutureTest exten
2180		final CompletableFuture<Integer> g = new CompletableFuture<>();
2181		final FailingRunnable r1 = new FailingRunnable(m);
2182		final FailingRunnable r2 = new FailingRunnable(m);
2183	+	final FailingRunnable r3 = new FailingRunnable(m);
2184	+
2185	+	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2186	+	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2187	+	final Integer w1 =  fFirst ? v1 : v2;
2188	+	final Integer w2 = !fFirst ? v1 : v2;
2189
2190	<	CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2191	<	assertTrue(fFirst ? f.complete(v1) : g.complete(v2));
2192	<	assertTrue(!fFirst ? f.complete(v1) : g.complete(v2));
2193	<	CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2190	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2191	>	assertTrue(fst.complete(w1));
2192	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2193	>	assertTrue(snd.complete(w2));
2194	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2195
2196	<	checkCompletedWithWrappedCFException(h1);
2197	<	checkCompletedWithWrappedCFException(h2);
2196	>	checkCompletedWithWrappedException(h1, r1.ex);
2197	>	checkCompletedWithWrappedException(h2, r2.ex);
2198	>	checkCompletedWithWrappedException(h3, r3.ex);
2199	>	r1.assertInvoked();
2200	>	r2.assertInvoked();
2201	>	r3.assertInvoked();
2202		checkCompletedNormally(f, v1);
2203		checkCompletedNormally(g, v2);
2204		}}
#	Line 2242 | Line 2485 | public class CompletableFutureTest exten
2485		f.complete(v1);
2486		final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2487		final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2488	<	checkCompletedWithWrappedCFException(h0);
2489	<	checkCompletedWithWrappedCFException(h1);
2490	<	checkCompletedWithWrappedCFException(h2);
2491	<	checkCompletedWithWrappedCFException(h3);
2488	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2489	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2490	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2491	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2492		for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2493
2494		g.complete(v2);
#	Line 2254 | Line 2497 | public class CompletableFutureTest exten
2497		final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2498		final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2499
2500	<	checkCompletedWithWrappedCFException(h4);
2500	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2501		assertTrue(Objects.equals(v1, rs[4].value) ||
2502		Objects.equals(v2, rs[4].value));
2503	<	checkCompletedWithWrappedCFException(h5);
2503	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2504		assertTrue(Objects.equals(v1, rs[5].value) ||
2505		Objects.equals(v2, rs[5].value));
2506
#	Line 2395 | Line 2638 | public class CompletableFutureTest exten
2638
2639		// unspecified behavior - both source completions available
2640		try {
2641	<	assertEquals(null, h0.join());
2641	>	assertNull(h0.join());
2642		rs[0].assertValue(v1);
2643		} catch (CompletionException ok) {
2644		checkCompletedWithWrappedException(h0, ex);
2645		rs[0].assertNotInvoked();
2646		}
2647		try {
2648	<	assertEquals(null, h1.join());
2648	>	assertNull(h1.join());
2649		rs[1].assertValue(v1);
2650		} catch (CompletionException ok) {
2651		checkCompletedWithWrappedException(h1, ex);
2652		rs[1].assertNotInvoked();
2653		}
2654		try {
2655	<	assertEquals(null, h2.join());
2655	>	assertNull(h2.join());
2656		rs[2].assertValue(v1);
2657		} catch (CompletionException ok) {
2658		checkCompletedWithWrappedException(h2, ex);
2659		rs[2].assertNotInvoked();
2660		}
2661		try {
2662	<	assertEquals(null, h3.join());
2662	>	assertNull(h3.join());
2663		rs[3].assertValue(v1);
2664		} catch (CompletionException ok) {
2665		checkCompletedWithWrappedException(h3, ex);
#	Line 2501 | Line 2744 | public class CompletableFutureTest exten
2744		f.complete(v1);
2745		final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2746		final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2747	<	checkCompletedWithWrappedCFException(h0);
2748	<	checkCompletedWithWrappedCFException(h1);
2749	<	checkCompletedWithWrappedCFException(h2);
2750	<	checkCompletedWithWrappedCFException(h3);
2747	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2748	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2749	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2750	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2751		for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2752
2753		g.complete(v2);
#	Line 2513 | Line 2756 | public class CompletableFutureTest exten
2756		final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2757		final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2758
2759	<	checkCompletedWithWrappedCFException(h4);
2759	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2760		assertTrue(Objects.equals(v1, rs[4].value) ||
2761		Objects.equals(v2, rs[4].value));
2762	<	checkCompletedWithWrappedCFException(h5);
2762	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2763		assertTrue(Objects.equals(v1, rs[5].value) ||
2764		Objects.equals(v2, rs[5].value));
2765
#	Line 2532 | Line 2775 | public class CompletableFutureTest exten
2775		for (ExecutionMode m : ExecutionMode.values())
2776		for (Integer v1 : new Integer[] { 1, null })
2777		for (Integer v2 : new Integer[] { 2, null })
2778	+	for (boolean pushNop : new boolean[] { true, false })
2779		{
2780		final CompletableFuture<Integer> f = new CompletableFuture<>();
2781		final CompletableFuture<Integer> g = new CompletableFuture<>();
#	Line 2544 | Line 2788 | public class CompletableFutureTest exten
2788		checkIncomplete(h1);
2789		rs[0].assertNotInvoked();
2790		rs[1].assertNotInvoked();
2791	+	if (pushNop) {          // ad hoc test of intra-completion interference
2792	+	m.thenRun(f, () -> {});
2793	+	m.thenRun(g, () -> {});
2794	+	}
2795		f.complete(v1);
2796		checkCompletedNormally(h0, null);
2797		checkCompletedNormally(h1, null);
#	Line 2650 | Line 2898 | public class CompletableFutureTest exten
2898
2899		// unspecified behavior - both source completions available
2900		try {
2901	<	assertEquals(null, h0.join());
2901	>	assertNull(h0.join());
2902		rs[0].assertInvoked();
2903		} catch (CompletionException ok) {
2904		checkCompletedWithWrappedException(h0, ex);
2905		rs[0].assertNotInvoked();
2906		}
2907		try {
2908	<	assertEquals(null, h1.join());
2908	>	assertNull(h1.join());
2909		rs[1].assertInvoked();
2910		} catch (CompletionException ok) {
2911		checkCompletedWithWrappedException(h1, ex);
2912		rs[1].assertNotInvoked();
2913		}
2914		try {
2915	<	assertEquals(null, h2.join());
2915	>	assertNull(h2.join());
2916		rs[2].assertInvoked();
2917		} catch (CompletionException ok) {
2918		checkCompletedWithWrappedException(h2, ex);
2919		rs[2].assertNotInvoked();
2920		}
2921		try {
2922	<	assertEquals(null, h3.join());
2922	>	assertNull(h3.join());
2923		rs[3].assertInvoked();
2924		} catch (CompletionException ok) {
2925		checkCompletedWithWrappedException(h3, ex);
#	Line 2756 | Line 3004 | public class CompletableFutureTest exten
3004		assertTrue(f.complete(v1));
3005		final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
3006		final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
3007	<	checkCompletedWithWrappedCFException(h0);
3008	<	checkCompletedWithWrappedCFException(h1);
3009	<	checkCompletedWithWrappedCFException(h2);
3010	<	checkCompletedWithWrappedCFException(h3);
3007	>	checkCompletedWithWrappedException(h0, rs[0].ex);
3008	>	checkCompletedWithWrappedException(h1, rs[1].ex);
3009	>	checkCompletedWithWrappedException(h2, rs[2].ex);
3010	>	checkCompletedWithWrappedException(h3, rs[3].ex);
3011		for (int i = 0; i < 4; i++) rs[i].assertInvoked();
3012		assertTrue(g.complete(v2));
3013		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
3014		final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
3015	<	checkCompletedWithWrappedCFException(h4);
3016	<	checkCompletedWithWrappedCFException(h5);
3015	>	checkCompletedWithWrappedException(h4, rs[4].ex);
3016	>	checkCompletedWithWrappedException(h5, rs[5].ex);
3017
3018		checkCompletedNormally(f, v1);
3019		checkCompletedNormally(g, v2);
#	Line 2826 | Line 3074 | public class CompletableFutureTest exten
3074		final CompletableFuture<Integer> g = m.thenCompose(f, r);
3075		if (createIncomplete) assertTrue(f.complete(v1));
3076
3077	<	checkCompletedWithWrappedCFException(g);
3077	>	checkCompletedWithWrappedException(g, r.ex);
3078		checkCompletedNormally(f, v1);
3079		}}
3080
#	Line 2851 | Line 3099 | public class CompletableFutureTest exten
3099		checkCancelled(f);
3100		}}
3101
3102	+	/**
3103	+	* thenCompose result completes exceptionally if the result of the action does
3104	+	*/
3105	+	public void testThenCompose_actionReturnsFailingFuture() {
3106	+	for (ExecutionMode m : ExecutionMode.values())
3107	+	for (int order = 0; order < 6; order++)
3108	+	for (Integer v1 : new Integer[] { 1, null })
3109	+	{
3110	+	final CFException ex = new CFException();
3111	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3112	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
3113	+	final CompletableFuture<Integer> h;
3114	+	// Test all permutations of orders
3115	+	switch (order) {
3116	+	case 0:
3117	+	assertTrue(f.complete(v1));
3118	+	assertTrue(g.completeExceptionally(ex));
3119	+	h = m.thenCompose(f, x -> g);
3120	+	break;
3121	+	case 1:
3122	+	assertTrue(f.complete(v1));
3123	+	h = m.thenCompose(f, x -> g);
3124	+	assertTrue(g.completeExceptionally(ex));
3125	+	break;
3126	+	case 2:
3127	+	assertTrue(g.completeExceptionally(ex));
3128	+	assertTrue(f.complete(v1));
3129	+	h = m.thenCompose(f, x -> g);
3130	+	break;
3131	+	case 3:
3132	+	assertTrue(g.completeExceptionally(ex));
3133	+	h = m.thenCompose(f, x -> g);
3134	+	assertTrue(f.complete(v1));
3135	+	break;
3136	+	case 4:
3137	+	h = m.thenCompose(f, x -> g);
3138	+	assertTrue(f.complete(v1));
3139	+	assertTrue(g.completeExceptionally(ex));
3140	+	break;
3141	+	case 5:
3142	+	h = m.thenCompose(f, x -> g);
3143	+	assertTrue(f.complete(v1));
3144	+	assertTrue(g.completeExceptionally(ex));
3145	+	break;
3146	+	default: throw new AssertionError();
3147	+	}
3148	+
3149	+	checkCompletedExceptionally(g, ex);
3150	+	checkCompletedWithWrappedException(h, ex);
3151	+	checkCompletedNormally(f, v1);
3152	+	}}
3153	+
3154	+	/**
3155	+	* exceptionallyCompose result completes normally after normal
3156	+	* completion of source
3157	+	*/
3158	+	public void testExceptionallyCompose_normalCompletion() {
3159	+	for (ExecutionMode m : ExecutionMode.values())
3160	+	for (boolean createIncomplete : new boolean[] { true, false })
3161	+	for (Integer v1 : new Integer[] { 1, null })
3162	+	{
3163	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3164	+	final ExceptionalCompletableFutureFunction r =
3165	+	new ExceptionalCompletableFutureFunction(m);
3166	+	if (!createIncomplete) assertTrue(f.complete(v1));
3167	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3168	+	if (createIncomplete) assertTrue(f.complete(v1));
3169	+
3170	+	checkCompletedNormally(f, v1);
3171	+	checkCompletedNormally(g, v1);
3172	+	r.assertNotInvoked();
3173	+	}}
3174	+
3175	+	/**
3176	+	* exceptionallyCompose result completes normally after exceptional
3177	+	* completion of source
3178	+	*/
3179	+	public void testExceptionallyCompose_exceptionalCompletion() {
3180	+	for (ExecutionMode m : ExecutionMode.values())
3181	+	for (boolean createIncomplete : new boolean[] { true, false })
3182	+	{
3183	+	final CFException ex = new CFException();
3184	+	final ExceptionalCompletableFutureFunction r =
3185	+	new ExceptionalCompletableFutureFunction(m);
3186	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3187	+	if (!createIncomplete) f.completeExceptionally(ex);
3188	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3189	+	if (createIncomplete) f.completeExceptionally(ex);
3190	+
3191	+	checkCompletedExceptionally(f, ex);
3192	+	checkCompletedNormally(g, r.value);
3193	+	r.assertInvoked();
3194	+	}}
3195	+
3196	+	/**
3197	+	* exceptionallyCompose completes exceptionally on exception if action does
3198	+	*/
3199	+	public void testExceptionallyCompose_actionFailed() {
3200	+	for (ExecutionMode m : ExecutionMode.values())
3201	+	for (boolean createIncomplete : new boolean[] { true, false })
3202	+	{
3203	+	final CFException ex = new CFException();
3204	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3205	+	final FailingExceptionalCompletableFutureFunction r
3206	+	= new FailingExceptionalCompletableFutureFunction(m);
3207	+	if (!createIncomplete) f.completeExceptionally(ex);
3208	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3209	+	if (createIncomplete) f.completeExceptionally(ex);
3210	+
3211	+	checkCompletedExceptionally(f, ex);
3212	+	checkCompletedWithWrappedException(g, r.ex);
3213	+	r.assertInvoked();
3214	+	}}
3215	+
3216	+	/**
3217	+	* exceptionallyCompose result completes exceptionally if the
3218	+	* result of the action does
3219	+	*/
3220	+	public void testExceptionallyCompose_actionReturnsFailingFuture() {
3221	+	for (ExecutionMode m : ExecutionMode.values())
3222	+	for (int order = 0; order < 6; order++)
3223	+	{
3224	+	final CFException ex0 = new CFException();
3225	+	final CFException ex = new CFException();
3226	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3227	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
3228	+	final CompletableFuture<Integer> h;
3229	+	// Test all permutations of orders
3230	+	switch (order) {
3231	+	case 0:
3232	+	assertTrue(f.completeExceptionally(ex0));
3233	+	assertTrue(g.completeExceptionally(ex));
3234	+	h = m.exceptionallyCompose(f, x -> g);
3235	+	break;
3236	+	case 1:
3237	+	assertTrue(f.completeExceptionally(ex0));
3238	+	h = m.exceptionallyCompose(f, x -> g);
3239	+	assertTrue(g.completeExceptionally(ex));
3240	+	break;
3241	+	case 2:
3242	+	assertTrue(g.completeExceptionally(ex));
3243	+	assertTrue(f.completeExceptionally(ex0));
3244	+	h = m.exceptionallyCompose(f, x -> g);
3245	+	break;
3246	+	case 3:
3247	+	assertTrue(g.completeExceptionally(ex));
3248	+	h = m.exceptionallyCompose(f, x -> g);
3249	+	assertTrue(f.completeExceptionally(ex0));
3250	+	break;
3251	+	case 4:
3252	+	h = m.exceptionallyCompose(f, x -> g);
3253	+	assertTrue(f.completeExceptionally(ex0));
3254	+	assertTrue(g.completeExceptionally(ex));
3255	+	break;
3256	+	case 5:
3257	+	h = m.exceptionallyCompose(f, x -> g);
3258	+	assertTrue(f.completeExceptionally(ex0));
3259	+	assertTrue(g.completeExceptionally(ex));
3260	+	break;
3261	+	default: throw new AssertionError();
3262	+	}
3263	+
3264	+	checkCompletedExceptionally(g, ex);
3265	+	checkCompletedWithWrappedException(h, ex);
3266	+	checkCompletedExceptionally(f, ex0);
3267	+	}}
3268	+
3269		// other static methods
3270
3271		/**
#	Line 2867 | Line 3282 | public class CompletableFutureTest exten
3282		* when all components complete normally
3283		*/
3284		public void testAllOf_normal() throws Exception {
3285	<	for (int k = 1; k < 20; ++k) {
3285	>	for (int k = 1; k < 10; k++) {
3286		CompletableFuture<Integer>[] fs
3287		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3288	<	for (int i = 0; i < k; ++i)
3288	>	for (int i = 0; i < k; i++)
3289		fs[i] = new CompletableFuture<>();
3290		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3291	<	for (int i = 0; i < k; ++i) {
3291	>	for (int i = 0; i < k; i++) {
3292		checkIncomplete(f);
3293		checkIncomplete(CompletableFuture.allOf(fs));
3294		fs[i].complete(one);
#	Line 2883 | Line 3298 | public class CompletableFutureTest exten
3298		}
3299		}
3300
3301	<	public void testAllOf_backwards() throws Exception {
3302	<	for (int k = 1; k < 20; ++k) {
3301	>	public void testAllOf_normal_backwards() throws Exception {
3302	>	for (int k = 1; k < 10; k++) {
3303		CompletableFuture<Integer>[] fs
3304		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3305	<	for (int i = 0; i < k; ++i)
3305	>	for (int i = 0; i < k; i++)
3306		fs[i] = new CompletableFuture<>();
3307		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3308		for (int i = k - 1; i >= 0; i--) {
#	Line 2900 | Line 3315 | public class CompletableFutureTest exten
3315		}
3316		}
3317
3318	+	public void testAllOf_exceptional() throws Exception {
3319	+	for (int k = 1; k < 10; k++) {
3320	+	CompletableFuture<Integer>[] fs
3321	+	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3322	+	CFException ex = new CFException();
3323	+	for (int i = 0; i < k; i++)
3324	+	fs[i] = new CompletableFuture<>();
3325	+	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3326	+	for (int i = 0; i < k; i++) {
3327	+	checkIncomplete(f);
3328	+	checkIncomplete(CompletableFuture.allOf(fs));
3329	+	if (i != k / 2) {
3330	+	fs[i].complete(i);
3331	+	checkCompletedNormally(fs[i], i);
3332	+	} else {
3333	+	fs[i].completeExceptionally(ex);
3334	+	checkCompletedExceptionally(fs[i], ex);
3335	+	}
3336	+	}
3337	+	checkCompletedWithWrappedException(f, ex);
3338	+	checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3339	+	}
3340	+	}
3341	+
3342		/**
3343		* anyOf(no component futures) returns an incomplete future
3344		*/
3345		public void testAnyOf_empty() throws Exception {
3346	+	for (Integer v1 : new Integer[] { 1, null })
3347	+	{
3348		CompletableFuture<Object> f = CompletableFuture.anyOf();
3349		checkIncomplete(f);
3350	<	}
3350	>
3351	>	f.complete(v1);
3352	>	checkCompletedNormally(f, v1);
3353	>	}}
3354
3355		/**
3356		* anyOf returns a future completed normally with a value when
3357		* a component future does
3358		*/
3359		public void testAnyOf_normal() throws Exception {
3360	<	for (int k = 0; k < 10; ++k) {
3360	>	for (int k = 0; k < 10; k++) {
3361		CompletableFuture[] fs = new CompletableFuture[k];
3362	<	for (int i = 0; i < k; ++i)
3362	>	for (int i = 0; i < k; i++)
3363		fs[i] = new CompletableFuture<>();
3364		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3365		checkIncomplete(f);
3366	<	for (int i = 0; i < k; ++i) {
3367	<	fs[i].complete(one);
3368	<	checkCompletedNormally(f, one);
3369	<	checkCompletedNormally(CompletableFuture.anyOf(fs), one);
3366	>	for (int i = 0; i < k; i++) {
3367	>	fs[i].complete(i);
3368	>	checkCompletedNormally(f, 0);
3369	>	int x = (int) CompletableFuture.anyOf(fs).join();
3370	>	assertTrue(0 <= x && x <= i);
3371	>	}
3372	>	}
3373	>	}
3374	>	public void testAnyOf_normal_backwards() throws Exception {
3375	>	for (int k = 0; k < 10; k++) {
3376	>	CompletableFuture[] fs = new CompletableFuture[k];
3377	>	for (int i = 0; i < k; i++)
3378	>	fs[i] = new CompletableFuture<>();
3379	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3380	>	checkIncomplete(f);
3381	>	for (int i = k - 1; i >= 0; i--) {
3382	>	fs[i].complete(i);
3383	>	checkCompletedNormally(f, k - 1);
3384	>	int x = (int) CompletableFuture.anyOf(fs).join();
3385	>	assertTrue(i <= x && x <= k - 1);
3386		}
3387		}
3388		}
#	Line 2931 | Line 3391 | public class CompletableFutureTest exten
3391		* anyOf result completes exceptionally when any component does.
3392		*/
3393		public void testAnyOf_exceptional() throws Exception {
3394	<	for (int k = 0; k < 10; ++k) {
3394	>	for (int k = 0; k < 10; k++) {
3395	>	CompletableFuture[] fs = new CompletableFuture[k];
3396	>	CFException[] exs = new CFException[k];
3397	>	for (int i = 0; i < k; i++) {
3398	>	fs[i] = new CompletableFuture<>();
3399	>	exs[i] = new CFException();
3400	>	}
3401	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3402	>	checkIncomplete(f);
3403	>	for (int i = 0; i < k; i++) {
3404	>	fs[i].completeExceptionally(exs[i]);
3405	>	checkCompletedWithWrappedException(f, exs[0]);
3406	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3407	>	}
3408	>	}
3409	>	}
3410	>
3411	>	public void testAnyOf_exceptional_backwards() throws Exception {
3412	>	for (int k = 0; k < 10; k++) {
3413		CompletableFuture[] fs = new CompletableFuture[k];
3414	<	for (int i = 0; i < k; ++i)
3414	>	CFException[] exs = new CFException[k];
3415	>	for (int i = 0; i < k; i++) {
3416		fs[i] = new CompletableFuture<>();
3417	+	exs[i] = new CFException();
3418	+	}
3419		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3420		checkIncomplete(f);
3421	<	for (int i = 0; i < k; ++i) {
3422	<	fs[i].completeExceptionally(new CFException());
3423	<	checkCompletedWithWrappedCFException(f);
3421	>	for (int i = k - 1; i >= 0; i--) {
3422	>	fs[i].completeExceptionally(exs[i]);
3423	>	checkCompletedWithWrappedException(f, exs[k - 1]);
3424		checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3425		}
3426		}
#	Line 2948 | Line 3429 | public class CompletableFutureTest exten
3429		/**
3430		* Completion methods throw NullPointerException with null arguments
3431		*/
3432	+	@SuppressWarnings("FutureReturnValueIgnored")
3433		public void testNPE() {
3434		CompletableFuture<Integer> f = new CompletableFuture<>();
3435		CompletableFuture<Integer> g = new CompletableFuture<>();
3436		CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
2955	–	CompletableFuture<?> h;
3437		ThreadExecutor exec = new ThreadExecutor();
3438
3439		Runnable[] throwingActions = {
3440		() -> CompletableFuture.supplyAsync(null),
3441		() -> CompletableFuture.supplyAsync(null, exec),
3442	<	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.DEFAULT, 42), null),
3442	>	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3443
3444		() -> CompletableFuture.runAsync(null),
3445		() -> CompletableFuture.runAsync(null, exec),
#	Line 2968 | Line 3449 | public class CompletableFutureTest exten
3449
3450		() -> f.thenApply(null),
3451		() -> f.thenApplyAsync(null),
3452	<	() -> f.thenApplyAsync((x) -> x, null),
3452	>	() -> f.thenApplyAsync(x -> x, null),
3453		() -> f.thenApplyAsync(null, exec),
3454
3455		() -> f.thenAccept(null),
3456		() -> f.thenAcceptAsync(null),
3457	<	() -> f.thenAcceptAsync((x) -> {} , null),
3457	>	() -> f.thenAcceptAsync(x -> {} , null),
3458		() -> f.thenAcceptAsync(null, exec),
3459
3460		() -> f.thenRun(null),
#	Line 3008 | Line 3489 | public class CompletableFutureTest exten
3489		() -> f.applyToEither(g, null),
3490		() -> f.applyToEitherAsync(g, null),
3491		() -> f.applyToEitherAsync(g, null, exec),
3492	<	() -> f.applyToEither(nullFuture, (x) -> x),
3493	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x),
3494	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
3495	<	() -> f.applyToEitherAsync(g, (x) -> x, null),
3492	>	() -> f.applyToEither(nullFuture, x -> x),
3493	>	() -> f.applyToEitherAsync(nullFuture, x -> x),
3494	>	() -> f.applyToEitherAsync(nullFuture, x -> x, exec),
3495	>	() -> f.applyToEitherAsync(g, x -> x, null),
3496
3497		() -> f.acceptEither(g, null),
3498		() -> f.acceptEitherAsync(g, null),
3499		() -> f.acceptEitherAsync(g, null, exec),
3500	<	() -> f.acceptEither(nullFuture, (x) -> {}),
3501	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}),
3502	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
3503	<	() -> f.acceptEitherAsync(g, (x) -> {}, null),
3500	>	() -> f.acceptEither(nullFuture, x -> {}),
3501	>	() -> f.acceptEitherAsync(nullFuture, x -> {}),
3502	>	() -> f.acceptEitherAsync(nullFuture, x -> {}, exec),
3503	>	() -> f.acceptEitherAsync(g, x -> {}, null),
3504
3505		() -> f.runAfterEither(g, null),
3506		() -> f.runAfterEitherAsync(g, null),
#	Line 3049 | Line 3530 | public class CompletableFutureTest exten
3530		() -> CompletableFuture.anyOf(null, f),
3531
3532		() -> f.obtrudeException(null),
3533	+
3534	+	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3535	+	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3536	+	() -> CompletableFuture.delayedExecutor(1L, null),
3537	+
3538	+	() -> f.orTimeout(1L, null),
3539	+	() -> f.completeOnTimeout(42, 1L, null),
3540	+
3541	+	() -> CompletableFuture.failedFuture(null),
3542	+	() -> CompletableFuture.failedStage(null),
3543		};
3544
3545		assertThrows(NullPointerException.class, throwingActions);
#	Line 3056 | Line 3547 | public class CompletableFutureTest exten
3547		}
3548
3549		/**
3550	+	* Test submissions to an executor that rejects all tasks.
3551	+	*/
3552	+	public void testRejectingExecutor() {
3553	+	for (Integer v : new Integer[] { 1, null })
3554	+	{
3555	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3556	+
3557	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3558	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3559	+
3560	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3561	+
3562	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3563	+	srcs.add(complete);
3564	+	srcs.add(incomplete);
3565	+
3566	+	for (CompletableFuture<Integer> src : srcs) {
3567	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3568	+	fs.add(src.thenRunAsync(() -> {}, e));
3569	+	fs.add(src.thenAcceptAsync(z -> {}, e));
3570	+	fs.add(src.thenApplyAsync(z -> z, e));
3571	+
3572	+	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3573	+	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3574	+	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3575	+
3576	+	fs.add(src.applyToEitherAsync(src, z -> z, e));
3577	+	fs.add(src.acceptEitherAsync(src, z -> {}, e));
3578	+	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3579	+
3580	+	fs.add(src.thenComposeAsync(z -> null, e));
3581	+	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3582	+	fs.add(src.handleAsync((z, t) -> null, e));
3583	+
3584	+	for (CompletableFuture<?> future : fs) {
3585	+	if (src.isDone())
3586	+	checkCompletedWithWrappedException(future, e.ex);
3587	+	else
3588	+	checkIncomplete(future);
3589	+	}
3590	+	futures.addAll(fs);
3591	+	}
3592	+
3593	+	{
3594	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3595	+
3596	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3597	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3598	+
3599	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3600	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3601	+
3602	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3603	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3604	+
3605	+	for (CompletableFuture<?> future : fs)
3606	+	checkIncomplete(future);
3607	+	futures.addAll(fs);
3608	+	}
3609	+
3610	+	{
3611	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3612	+
3613	+	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3614	+	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3615	+
3616	+	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3617	+	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3618	+
3619	+	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3620	+	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3621	+
3622	+	for (CompletableFuture<?> future : fs)
3623	+	checkCompletedWithWrappedException(future, e.ex);
3624	+	futures.addAll(fs);
3625	+	}
3626	+
3627	+	incomplete.complete(v);
3628	+
3629	+	for (CompletableFuture<?> future : futures)
3630	+	checkCompletedWithWrappedException(future, e.ex);
3631	+
3632	+	assertEquals(futures.size(), e.count.get());
3633	+	}}
3634	+
3635	+	/**
3636	+	* Test submissions to an executor that rejects all tasks, but
3637	+	* should never be invoked because the dependent future is
3638	+	* explicitly completed.
3639	+	*/
3640	+	public void testRejectingExecutorNeverInvoked() {
3641	+	for (Integer v : new Integer[] { 1, null })
3642	+	{
3643	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3644	+
3645	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3646	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3647	+
3648	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3649	+	fs.add(incomplete.thenRunAsync(() -> {}, e));
3650	+	fs.add(incomplete.thenAcceptAsync(z -> {}, e));
3651	+	fs.add(incomplete.thenApplyAsync(z -> z, e));
3652	+
3653	+	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3654	+	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3655	+	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3656	+
3657	+	fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e));
3658	+	fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e));
3659	+	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3660	+
3661	+	fs.add(incomplete.thenComposeAsync(z -> null, e));
3662	+	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3663	+	fs.add(incomplete.handleAsync((z, t) -> null, e));
3664	+
3665	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3666	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3667	+
3668	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3669	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3670	+
3671	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3672	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3673	+
3674	+	for (CompletableFuture<?> future : fs)
3675	+	checkIncomplete(future);
3676	+
3677	+	for (CompletableFuture<?> future : fs)
3678	+	future.complete(null);
3679	+
3680	+	incomplete.complete(v);
3681	+
3682	+	for (CompletableFuture<?> future : fs)
3683	+	checkCompletedNormally(future, null);
3684	+
3685	+	assertEquals(0, e.count.get());
3686	+	}}
3687	+
3688	+	/**
3689		* toCompletableFuture returns this CompletableFuture.
3690		*/
3691		public void testToCompletableFuture() {
#	Line 3063 | Line 3693 | public class CompletableFutureTest exten
3693		assertSame(f, f.toCompletableFuture());
3694		}
3695
3696	<	//     public void testRunAfterEither_resultDeterminedAtTimeOfCreation() {
3697	<	//         for (ExecutionMode m : ExecutionMode.values())
3698	<	//         for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3699	<	//         for (Integer v1 : new Integer[] { 1, null })
3700	<	//     {
3701	<	//         final CompletableFuture<Integer> f = new CompletableFuture<>();
3702	<	//         final CompletableFuture<Integer> g = new CompletableFuture<>();
3703	<	//         final Noop[] rs = new Noop[2];
3704	<	//         for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
3705	<	//         f.complete(v1);
3706	<	//         final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
3707	<	//         final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
3708	<	//         assertTrue(g.cancel(mayInterruptIfRunning));
3709	<	//         checkCompletedNormally(h0, null);
3710	<	//         checkCompletedNormally(h1, null);
3711	<	//         for (Noop r : rs) r.assertInvoked();
3712	<	//     }}
3696	>	// jdk9
3697	>
3698	>	/**
3699	>	* newIncompleteFuture returns an incomplete CompletableFuture
3700	>	*/
3701	>	public void testNewIncompleteFuture() {
3702	>	for (Integer v1 : new Integer[] { 1, null })
3703	>	{
3704	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3705	>	CompletableFuture<Integer> g = f.newIncompleteFuture();
3706	>	checkIncomplete(f);
3707	>	checkIncomplete(g);
3708	>	f.complete(v1);
3709	>	checkCompletedNormally(f, v1);
3710	>	checkIncomplete(g);
3711	>	g.complete(v1);
3712	>	checkCompletedNormally(g, v1);
3713	>	assertSame(g.getClass(), CompletableFuture.class);
3714	>	}}
3715	>
3716	>	/**
3717	>	* completedStage returns a completed CompletionStage
3718	>	*/
3719	>	public void testCompletedStage() {
3720	>	AtomicInteger x = new AtomicInteger(0);
3721	>	AtomicReference<Throwable> r = new AtomicReference<>();
3722	>	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3723	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3724	>	assertEquals(x.get(), 1);
3725	>	assertNull(r.get());
3726	>	}
3727	>
3728	>	/**
3729	>	* defaultExecutor by default returns the commonPool if
3730	>	* it supports more than one thread.
3731	>	*/
3732	>	public void testDefaultExecutor() {
3733	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3734	>	Executor e = f.defaultExecutor();
3735	>	Executor c = ForkJoinPool.commonPool();
3736	>	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3737	>	assertSame(e, c);
3738	>	else
3739	>	assertNotSame(e, c);
3740	>	}
3741	>
3742	>	/**
3743	>	* failedFuture returns a CompletableFuture completed
3744	>	* exceptionally with the given Exception
3745	>	*/
3746	>	public void testFailedFuture() {
3747	>	CFException ex = new CFException();
3748	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3749	>	checkCompletedExceptionally(f, ex);
3750	>	}
3751	>
3752	>	/**
3753	>	* failedFuture(null) throws NPE
3754	>	*/
3755	>	public void testFailedFuture_null() {
3756	>	try {
3757	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3758	>	shouldThrow();
3759	>	} catch (NullPointerException success) {}
3760	>	}
3761	>
3762	>	/**
3763	>	* copy returns a CompletableFuture that is completed normally,
3764	>	* with the same value, when source is.
3765	>	*/
3766	>	public void testCopy_normalCompletion() {
3767	>	for (boolean createIncomplete : new boolean[] { true, false })
3768	>	for (Integer v1 : new Integer[] { 1, null })
3769	>	{
3770	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3771	>	if (!createIncomplete) assertTrue(f.complete(v1));
3772	>	CompletableFuture<Integer> g = f.copy();
3773	>	if (createIncomplete) {
3774	>	checkIncomplete(f);
3775	>	checkIncomplete(g);
3776	>	assertTrue(f.complete(v1));
3777	>	}
3778	>	checkCompletedNormally(f, v1);
3779	>	checkCompletedNormally(g, v1);
3780	>	}}
3781	>
3782	>	/**
3783	>	* copy returns a CompletableFuture that is completed exceptionally
3784	>	* when source is.
3785	>	*/
3786	>	public void testCopy_exceptionalCompletion() {
3787	>	for (boolean createIncomplete : new boolean[] { true, false })
3788	>	{
3789	>	CFException ex = new CFException();
3790	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3791	>	if (!createIncomplete) f.completeExceptionally(ex);
3792	>	CompletableFuture<Integer> g = f.copy();
3793	>	if (createIncomplete) {
3794	>	checkIncomplete(f);
3795	>	checkIncomplete(g);
3796	>	f.completeExceptionally(ex);
3797	>	}
3798	>	checkCompletedExceptionally(f, ex);
3799	>	checkCompletedWithWrappedException(g, ex);
3800	>	}}
3801	>
3802	>	/**
3803	>	* Completion of a copy does not complete its source.
3804	>	*/
3805	>	public void testCopy_oneWayPropagation() {
3806	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3807	>	assertTrue(f.copy().complete(1));
3808	>	assertTrue(f.copy().complete(null));
3809	>	assertTrue(f.copy().cancel(true));
3810	>	assertTrue(f.copy().cancel(false));
3811	>	assertTrue(f.copy().completeExceptionally(new CFException()));
3812	>	checkIncomplete(f);
3813	>	}
3814	>
3815	>	/**
3816	>	* minimalCompletionStage returns a CompletableFuture that is
3817	>	* completed normally, with the same value, when source is.
3818	>	*/
3819	>	public void testMinimalCompletionStage() {
3820	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3821	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3822	>	AtomicInteger x = new AtomicInteger(0);
3823	>	AtomicReference<Throwable> r = new AtomicReference<>();
3824	>	checkIncomplete(f);
3825	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3826	>	f.complete(1);
3827	>	checkCompletedNormally(f, 1);
3828	>	assertEquals(x.get(), 1);
3829	>	assertNull(r.get());
3830	>	}
3831	>
3832	>	/**
3833	>	* minimalCompletionStage returns a CompletableFuture that is
3834	>	* completed exceptionally when source is.
3835	>	*/
3836	>	public void testMinimalCompletionStage2() {
3837	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3838	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3839	>	AtomicInteger x = new AtomicInteger(0);
3840	>	AtomicReference<Throwable> r = new AtomicReference<>();
3841	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3842	>	checkIncomplete(f);
3843	>	CFException ex = new CFException();
3844	>	f.completeExceptionally(ex);
3845	>	checkCompletedExceptionally(f, ex);
3846	>	assertEquals(x.get(), 0);
3847	>	assertEquals(r.get().getCause(), ex);
3848	>	}
3849	>
3850	>	/**
3851	>	* failedStage returns a CompletionStage completed
3852	>	* exceptionally with the given Exception
3853	>	*/
3854	>	public void testFailedStage() {
3855	>	CFException ex = new CFException();
3856	>	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3857	>	AtomicInteger x = new AtomicInteger(0);
3858	>	AtomicReference<Throwable> r = new AtomicReference<>();
3859	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3860	>	assertEquals(x.get(), 0);
3861	>	assertEquals(r.get(), ex);
3862	>	}
3863	>
3864	>	/**
3865	>	* completeAsync completes with value of given supplier
3866	>	*/
3867	>	public void testCompleteAsync() {
3868	>	for (Integer v1 : new Integer[] { 1, null })
3869	>	{
3870	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3871	>	f.completeAsync(() -> v1);
3872	>	f.join();
3873	>	checkCompletedNormally(f, v1);
3874	>	}}
3875	>
3876	>	/**
3877	>	* completeAsync completes exceptionally if given supplier throws
3878	>	*/
3879	>	public void testCompleteAsync2() {
3880	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3881	>	CFException ex = new CFException();
3882	>	f.completeAsync(() -> { throw ex; });
3883	>	try {
3884	>	f.join();
3885	>	shouldThrow();
3886	>	} catch (CompletionException success) {}
3887	>	checkCompletedWithWrappedException(f, ex);
3888	>	}
3889	>
3890	>	/**
3891	>	* completeAsync with given executor completes with value of given supplier
3892	>	*/
3893	>	public void testCompleteAsync3() {
3894	>	for (Integer v1 : new Integer[] { 1, null })
3895	>	{
3896	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3897	>	ThreadExecutor executor = new ThreadExecutor();
3898	>	f.completeAsync(() -> v1, executor);
3899	>	assertSame(v1, f.join());
3900	>	checkCompletedNormally(f, v1);
3901	>	assertEquals(1, executor.count.get());
3902	>	}}
3903	>
3904	>	/**
3905	>	* completeAsync with given executor completes exceptionally if
3906	>	* given supplier throws
3907	>	*/
3908	>	public void testCompleteAsync4() {
3909	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3910	>	CFException ex = new CFException();
3911	>	ThreadExecutor executor = new ThreadExecutor();
3912	>	f.completeAsync(() -> { throw ex; }, executor);
3913	>	try {
3914	>	f.join();
3915	>	shouldThrow();
3916	>	} catch (CompletionException success) {}
3917	>	checkCompletedWithWrappedException(f, ex);
3918	>	assertEquals(1, executor.count.get());
3919	>	}
3920	>
3921	>	/**
3922	>	* orTimeout completes with TimeoutException if not complete
3923	>	*/
3924	>	public void testOrTimeout_timesOut() {
3925	>	long timeoutMillis = timeoutMillis();
3926	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3927	>	long startTime = System.nanoTime();
3928	>	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3929	>	checkCompletedWithTimeoutException(f);
3930	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3931	>	}
3932	>
3933	>	/**
3934	>	* orTimeout completes normally if completed before timeout
3935	>	*/
3936	>	public void testOrTimeout_completed() {
3937	>	for (Integer v1 : new Integer[] { 1, null })
3938	>	{
3939	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3940	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3941	>	long startTime = System.nanoTime();
3942	>	f.complete(v1);
3943	>	assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3944	>	assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3945	>	g.complete(v1);
3946	>	checkCompletedNormally(f, v1);
3947	>	checkCompletedNormally(g, v1);
3948	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3949	>	}}
3950	>
3951	>	/**
3952	>	* completeOnTimeout completes with given value if not complete
3953	>	*/
3954	>	public void testCompleteOnTimeout_timesOut() {
3955	>	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3956	>	() -> testCompleteOnTimeout_timesOut(null));
3957	>	}
3958	>
3959	>	/**
3960	>	* completeOnTimeout completes with given value if not complete
3961	>	*/
3962	>	public void testCompleteOnTimeout_timesOut(Integer v) {
3963	>	long timeoutMillis = timeoutMillis();
3964	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3965	>	long startTime = System.nanoTime();
3966	>	assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS));
3967	>	assertSame(v, f.join());
3968	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3969	>	f.complete(99);         // should have no effect
3970	>	checkCompletedNormally(f, v);
3971	>	}
3972	>
3973	>	/**
3974	>	* completeOnTimeout has no effect if completed within timeout
3975	>	*/
3976	>	public void testCompleteOnTimeout_completed() {
3977	>	for (Integer v1 : new Integer[] { 1, null })
3978	>	{
3979	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3980	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3981	>	long startTime = System.nanoTime();
3982	>	f.complete(v1);
3983	>	assertSame(f, f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3984	>	assertSame(g, g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3985	>	g.complete(v1);
3986	>	checkCompletedNormally(f, v1);
3987	>	checkCompletedNormally(g, v1);
3988	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3989	>	}}
3990	>
3991	>	/**
3992	>	* delayedExecutor returns an executor that delays submission
3993	>	*/
3994	>	public void testDelayedExecutor() {
3995	>	testInParallel(() -> testDelayedExecutor(null, null),
3996	>	() -> testDelayedExecutor(null, 1),
3997	>	() -> testDelayedExecutor(new ThreadExecutor(), 1),
3998	>	() -> testDelayedExecutor(new ThreadExecutor(), 1));
3999	>	}
4000	>
4001	>	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
4002	>	long timeoutMillis = timeoutMillis();
4003	>	// Use an "unreasonably long" long timeout to catch lingering threads
4004	>	long longTimeoutMillis = 1000 * 60 * 60 * 24;
4005	>	final Executor delayer, longDelayer;
4006	>	if (executor == null) {
4007	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
4008	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
4009	>	} else {
4010	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
4011	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
4012	>	}
4013	>	long startTime = System.nanoTime();
4014	>	CompletableFuture<Integer> f =
4015	>	CompletableFuture.supplyAsync(() -> v, delayer);
4016	>	CompletableFuture<Integer> g =
4017	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
4018	>
4019	>	assertNull(g.getNow(null));
4020	>
4021	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
4022	>	long millisElapsed = millisElapsedSince(startTime);
4023	>	assertTrue(millisElapsed >= timeoutMillis);
4024	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
4025	>
4026	>	checkCompletedNormally(f, v);
4027	>
4028	>	checkIncomplete(g);
4029	>	assertTrue(g.cancel(true));
4030	>	}
4031	>
4032	>	//--- tests of implementation details; not part of official tck ---
4033	>
4034	>	Object resultOf(CompletableFuture<?> f) {
4035	>	SecurityManager sm = System.getSecurityManager();
4036	>	if (sm != null) {
4037	>	try {
4038	>	System.setSecurityManager(null);
4039	>	} catch (SecurityException giveUp) {
4040	>	return "Reflection not available";
4041	>	}
4042	>	}
4043	>
4044	>	try {
4045	>	java.lang.reflect.Field resultField
4046	>	= CompletableFuture.class.getDeclaredField("result");
4047	>	resultField.setAccessible(true);
4048	>	return resultField.get(f);
4049	>	} catch (Throwable t) {
4050	>	throw new AssertionError(t);
4051	>	} finally {
4052	>	if (sm != null) System.setSecurityManager(sm);
4053	>	}
4054	>	}
4055	>
4056	>	public void testExceptionPropagationReusesResultObject() {
4057	>	if (!testImplementationDetails) return;
4058	>	for (ExecutionMode m : ExecutionMode.values())
4059	>	{
4060	>	final CFException ex = new CFException();
4061	>	final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
4062	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4063	>
4064	>	final Runnable noopRunnable = new Noop(m);
4065	>	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
4066	>	final Function<Integer, Integer> incFunction = new IncFunction(m);
4067	>
4068	>	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
4069	>	= new ArrayList<>();
4070	>
4071	>	funs.add(y -> m.thenRun(y, noopRunnable));
4072	>	funs.add(y -> m.thenAccept(y, noopConsumer));
4073	>	funs.add(y -> m.thenApply(y, incFunction));
4074	>
4075	>	funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable));
4076	>	funs.add(y -> m.acceptEither(y, incomplete, noopConsumer));
4077	>	funs.add(y -> m.applyToEither(y, incomplete, incFunction));
4078	>
4079	>	funs.add(y -> m.runAfterBoth(y, v42, noopRunnable));
4080	>	funs.add(y -> m.runAfterBoth(v42, y, noopRunnable));
4081	>	funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4082	>	funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
4083	>	funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m)));
4084	>	funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m)));
4085	>
4086	>	funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
4087	>
4088	>	funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m)));
4089	>
4090	>	funs.add(y -> CompletableFuture.allOf(y));
4091	>	funs.add(y -> CompletableFuture.allOf(y, v42));
4092	>	funs.add(y -> CompletableFuture.allOf(v42, y));
4093	>	funs.add(y -> CompletableFuture.anyOf(y));
4094	>	funs.add(y -> CompletableFuture.anyOf(y, incomplete));
4095	>	funs.add(y -> CompletableFuture.anyOf(incomplete, y));
4096	>
4097	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4098	>	fun : funs) {
4099	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4100	>	f.completeExceptionally(ex);
4101	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4102	>	checkCompletedWithWrappedException(src, ex);
4103	>	CompletableFuture<?> dep = fun.apply(src);
4104	>	checkCompletedWithWrappedException(dep, ex);
4105	>	assertSame(resultOf(src), resultOf(dep));
4106	>	}
4107	>
4108	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4109	>	fun : funs) {
4110	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4111	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4112	>	CompletableFuture<?> dep = fun.apply(src);
4113	>	f.completeExceptionally(ex);
4114	>	checkCompletedWithWrappedException(src, ex);
4115	>	checkCompletedWithWrappedException(dep, ex);
4116	>	assertSame(resultOf(src), resultOf(dep));
4117	>	}
4118	>
4119	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
4120	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4121	>	fun : funs) {
4122	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4123	>	f.cancel(mayInterruptIfRunning);
4124	>	checkCancelled(f);
4125	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4126	>	checkCompletedWithWrappedCancellationException(src);
4127	>	CompletableFuture<?> dep = fun.apply(src);
4128	>	checkCompletedWithWrappedCancellationException(dep);
4129	>	assertSame(resultOf(src), resultOf(dep));
4130	>	}
4131	>
4132	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
4133	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4134	>	fun : funs) {
4135	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4136	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4137	>	CompletableFuture<?> dep = fun.apply(src);
4138	>	f.cancel(mayInterruptIfRunning);
4139	>	checkCancelled(f);
4140	>	checkCompletedWithWrappedCancellationException(src);
4141	>	checkCompletedWithWrappedCancellationException(dep);
4142	>	assertSame(resultOf(src), resultOf(dep));
4143	>	}
4144	>	}}
4145	>
4146	>	/**
4147	>	* Minimal completion stages throw UOE for most non-CompletionStage methods
4148	>	*/
4149	>	public void testMinimalCompletionStage_minimality() {
4150	>	if (!testImplementationDetails) return;
4151	>	Function<Method, String> toSignature =
4152	>	method -> method.getName() + Arrays.toString(method.getParameterTypes());
4153	>	Predicate<Method> isNotStatic =
4154	>	method -> (method.getModifiers() & Modifier.STATIC) == 0;
4155	>	List<Method> minimalMethods =
4156	>	Stream.of(Object.class, CompletionStage.class)
4157	>	.flatMap(klazz -> Stream.of(klazz.getMethods()))
4158	>	.filter(isNotStatic)
4159	>	.collect(Collectors.toList());
4160	>	// Methods from CompletableFuture permitted NOT to throw UOE
4161	>	String[] signatureWhitelist = {
4162	>	"newIncompleteFuture[]",
4163	>	"defaultExecutor[]",
4164	>	"minimalCompletionStage[]",
4165	>	"copy[]",
4166	>	};
4167	>	Set<String> permittedMethodSignatures =
4168	>	Stream.concat(minimalMethods.stream().map(toSignature),
4169	>	Stream.of(signatureWhitelist))
4170	>	.collect(Collectors.toSet());
4171	>	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
4172	>	.filter(isNotStatic)
4173	>	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4174	>	.collect(Collectors.toList());
4175	>
4176	>	List<CompletionStage<Integer>> stages = new ArrayList<>();
4177	>	CompletionStage<Integer> min =
4178	>	new CompletableFuture<Integer>().minimalCompletionStage();
4179	>	stages.add(min);
4180	>	stages.add(min.thenApply(x -> x));
4181	>	stages.add(CompletableFuture.completedStage(1));
4182	>	stages.add(CompletableFuture.failedStage(new CFException()));
4183	>
4184	>	List<Method> bugs = new ArrayList<>();
4185	>	for (Method method : allMethods) {
4186	>	Class<?>[] parameterTypes = method.getParameterTypes();
4187	>	Object[] args = new Object[parameterTypes.length];
4188	>	// Manufacture boxed primitives for primitive params
4189	>	for (int i = 0; i < args.length; i++) {
4190	>	Class<?> type = parameterTypes[i];
4191	>	if (parameterTypes[i] == boolean.class)
4192	>	args[i] = false;
4193	>	else if (parameterTypes[i] == int.class)
4194	>	args[i] = 0;
4195	>	else if (parameterTypes[i] == long.class)
4196	>	args[i] = 0L;
4197	>	}
4198	>	for (CompletionStage<Integer> stage : stages) {
4199	>	try {
4200	>	method.invoke(stage, args);
4201	>	bugs.add(method);
4202	>	}
4203	>	catch (java.lang.reflect.InvocationTargetException expected) {
4204	>	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4205	>	bugs.add(method);
4206	>	// expected.getCause().printStackTrace();
4207	>	}
4208	>	}
4209	>	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4210	>	}
4211	>	}
4212	>	if (!bugs.isEmpty())
4213	>	throw new Error("Methods did not throw UOE: " + bugs);
4214	>	}
4215	>
4216	>	/**
4217	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4218	>	* is completed normally, with the same value, when source is.
4219	>	*/
4220	>	public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() {
4221	>	for (boolean createIncomplete : new boolean[] { true, false })
4222	>	for (Integer v1 : new Integer[] { 1, null })
4223	>	{
4224	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4225	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4226	>	if (!createIncomplete) assertTrue(f.complete(v1));
4227	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4228	>	if (createIncomplete) {
4229	>	checkIncomplete(f);
4230	>	checkIncomplete(g);
4231	>	assertTrue(f.complete(v1));
4232	>	}
4233	>	checkCompletedNormally(f, v1);
4234	>	checkCompletedNormally(g, v1);
4235	>	}}
4236	>
4237	>	/**
4238	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4239	>	* is completed exceptionally when source is.
4240	>	*/
4241	>	public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() {
4242	>	for (boolean createIncomplete : new boolean[] { true, false })
4243	>	{
4244	>	CFException ex = new CFException();
4245	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4246	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4247	>	if (!createIncomplete) f.completeExceptionally(ex);
4248	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4249	>	if (createIncomplete) {
4250	>	checkIncomplete(f);
4251	>	checkIncomplete(g);
4252	>	f.completeExceptionally(ex);
4253	>	}
4254	>	checkCompletedExceptionally(f, ex);
4255	>	checkCompletedWithWrappedException(g, ex);
4256	>	}}
4257	>
4258	>	/**
4259	>	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4260	>	*/
4261	>	public void testMinimalCompletionStage_toCompletableFuture_mutable() {
4262	>	for (Integer v1 : new Integer[] { 1, null })
4263	>	{
4264	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4265	>	CompletionStage minimal = f.minimalCompletionStage();
4266	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4267	>	assertTrue(g.complete(v1));
4268	>	checkCompletedNormally(g, v1);
4269	>	checkIncomplete(f);
4270	>	checkIncomplete(minimal.toCompletableFuture());
4271	>	}}
4272	>
4273	>	/**
4274	>	* minimalStage.toCompletableFuture().join() awaits completion
4275	>	*/
4276	>	public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception {
4277	>	for (boolean createIncomplete : new boolean[] { true, false })
4278	>	for (Integer v1 : new Integer[] { 1, null })
4279	>	{
4280	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4281	>	if (!createIncomplete) assertTrue(f.complete(v1));
4282	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4283	>	if (createIncomplete) assertTrue(f.complete(v1));
4284	>	assertEquals(v1, minimal.toCompletableFuture().join());
4285	>	assertEquals(v1, minimal.toCompletableFuture().get());
4286	>	checkCompletedNormally(minimal.toCompletableFuture(), v1);
4287	>	}}
4288	>
4289	>	/**
4290	>	* Completion of a toCompletableFuture copy of a minimal stage
4291	>	* does not complete its source.
4292	>	*/
4293	>	public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() {
4294	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4295	>	CompletionStage<Integer> g = f.minimalCompletionStage();
4296	>	assertTrue(g.toCompletableFuture().complete(1));
4297	>	assertTrue(g.toCompletableFuture().complete(null));
4298	>	assertTrue(g.toCompletableFuture().cancel(true));
4299	>	assertTrue(g.toCompletableFuture().cancel(false));
4300	>	assertTrue(g.toCompletableFuture().completeExceptionally(new CFException()));
4301	>	checkIncomplete(g.toCompletableFuture());
4302	>	f.complete(1);
4303	>	checkCompletedNormally(g.toCompletableFuture(), 1);
4304	>	}
4305	>
4306	>	/** Demo utility method for external reliable toCompletableFuture */
4307	>	static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) {
4308	>	CompletableFuture<T> f = new CompletableFuture<>();
4309	>	stage.handle((T t, Throwable ex) -> {
4310	>	if (ex != null) f.completeExceptionally(ex);
4311	>	else f.complete(t);
4312	>	return null;
4313	>	});
4314	>	return f;
4315	>	}
4316	>
4317	>	/** Demo utility method to join a CompletionStage */
4318	>	static <T> T join(CompletionStage<T> stage) {
4319	>	return toCompletableFuture(stage).join();
4320	>	}
4321	>
4322	>	/**
4323	>	* Joining a minimal stage "by hand" works
4324	>	*/
4325	>	public void testMinimalCompletionStage_join_by_hand() {
4326	>	for (boolean createIncomplete : new boolean[] { true, false })
4327	>	for (Integer v1 : new Integer[] { 1, null })
4328	>	{
4329	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4330	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4331	>	CompletableFuture<Integer> g = new CompletableFuture<>();
4332	>	if (!createIncomplete) assertTrue(f.complete(v1));
4333	>	minimal.thenAccept(x -> g.complete(x));
4334	>	if (createIncomplete) assertTrue(f.complete(v1));
4335	>	g.join();
4336	>	checkCompletedNormally(g, v1);
4337	>	checkCompletedNormally(f, v1);
4338	>	assertEquals(v1, join(minimal));
4339	>	}}
4340	>
4341	>	static class Monad {
4342	>	static class ZeroException extends RuntimeException {
4343	>	public ZeroException() { super("monadic zero"); }
4344	>	}
4345	>	// "return", "unit"
4346	>	static <T> CompletableFuture<T> unit(T value) {
4347	>	return completedFuture(value);
4348	>	}
4349	>	// monadic zero ?
4350	>	static <T> CompletableFuture<T> zero() {
4351	>	return failedFuture(new ZeroException());
4352	>	}
4353	>	// >=>
4354	>	static <T,U,V> Function<T, CompletableFuture<V>> compose
4355	>	(Function<T, CompletableFuture<U>> f,
4356	>	Function<U, CompletableFuture<V>> g) {
4357	>	return x -> f.apply(x).thenCompose(g);
4358	>	}
4359	>
4360	>	static void assertZero(CompletableFuture<?> f) {
4361	>	try {
4362	>	f.getNow(null);
4363	>	throw new AssertionError("should throw");
4364	>	} catch (CompletionException success) {
4365	>	assertTrue(success.getCause() instanceof ZeroException);
4366	>	}
4367	>	}
4368	>
4369	>	static <T> void assertFutureEquals(CompletableFuture<T> f,
4370	>	CompletableFuture<T> g) {
4371	>	T fval = null, gval = null;
4372	>	Throwable fex = null, gex = null;
4373	>
4374	>	try { fval = f.get(); }
4375	>	catch (ExecutionException ex) { fex = ex.getCause(); }
4376	>	catch (Throwable ex) { fex = ex; }
4377	>
4378	>	try { gval = g.get(); }
4379	>	catch (ExecutionException ex) { gex = ex.getCause(); }
4380	>	catch (Throwable ex) { gex = ex; }
4381	>
4382	>	if (fex != null || gex != null)
4383	>	assertSame(fex.getClass(), gex.getClass());
4384	>	else
4385	>	assertEquals(fval, gval);
4386	>	}
4387	>
4388	>	static class PlusFuture<T> extends CompletableFuture<T> {
4389	>	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4390	>	}
4391	>
4392	>	/** Implements "monadic plus". */
4393	>	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
4394	>	CompletableFuture<? extends T> g) {
4395	>	PlusFuture<T> plus = new PlusFuture<T>();
4396	>	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
4397	>	try {
4398	>	if (ex == null) {
4399	>	if (plus.complete(result))
4400	>	if (plus.firstFailure.get() != null)
4401	>	plus.firstFailure.set(null);
4402	>	}
4403	>	else if (plus.firstFailure.compareAndSet(null, ex)) {
4404	>	if (plus.isDone())
4405	>	plus.firstFailure.set(null);
4406	>	}
4407	>	else {
4408	>	// first failure has precedence
4409	>	Throwable first = plus.firstFailure.getAndSet(null);
4410	>
4411	>	// may fail with "Self-suppression not permitted"
4412	>	try { first.addSuppressed(ex); }
4413	>	catch (Exception ignored) {}
4414	>
4415	>	plus.completeExceptionally(first);
4416	>	}
4417	>	} catch (Throwable unexpected) {
4418	>	plus.completeExceptionally(unexpected);
4419	>	}
4420	>	};
4421	>	f.whenComplete(action);
4422	>	g.whenComplete(action);
4423	>	return plus;
4424	>	}
4425	>	}
4426	>
4427	>	/**
4428	>	* CompletableFuture is an additive monad - sort of.
4429	>	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
4430	>	*/
4431	>	public void testAdditiveMonad() throws Throwable {
4432	>	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
4433	>	CompletableFuture<Long> zero = Monad.zero();
4434	>
4435	>	// Some mutually non-commutative functions
4436	>	Function<Long, CompletableFuture<Long>> triple
4437	>	= x -> Monad.unit(3 * x);
4438	>	Function<Long, CompletableFuture<Long>> inc
4439	>	= x -> Monad.unit(x + 1);
4440	>
4441	>	// unit is a right identity: m >>= unit === m
4442	>	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
4443	>	inc.apply(5L));
4444	>	// unit is a left identity: (unit x) >>= f === f x
4445	>	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
4446	>	inc.apply(5L));
4447	>
4448	>	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4449	>	Monad.assertFutureEquals(
4450	>	unit.apply(5L).thenCompose(inc).thenCompose(triple),
4451	>	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4452	>
4453	>	// The case for CompletableFuture as an additive monad is weaker...
4454	>
4455	>	// zero is a monadic zero
4456	>	Monad.assertZero(zero);
4457	>
4458	>	// left zero: zero >>= f === zero
4459	>	Monad.assertZero(zero.thenCompose(inc));
4460	>	// right zero: f >>= (\x -> zero) === zero
4461	>	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4462	>
4463	>	// f plus zero === f
4464	>	Monad.assertFutureEquals(Monad.unit(5L),
4465	>	Monad.plus(Monad.unit(5L), zero));
4466	>	// zero plus f === f
4467	>	Monad.assertFutureEquals(Monad.unit(5L),
4468	>	Monad.plus(zero, Monad.unit(5L)));
4469	>	// zero plus zero === zero
4470	>	Monad.assertZero(Monad.plus(zero, zero));
4471	>	{
4472	>	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
4473	>	Monad.unit(8L));
4474	>	// non-determinism
4475	>	assertTrue(f.get() == 5L || f.get() == 8L);
4476	>	}
4477	>
4478	>	CompletableFuture<Long> godot = new CompletableFuture<>();
4479	>	// f plus godot === f (doesn't wait for godot)
4480	>	Monad.assertFutureEquals(Monad.unit(5L),
4481	>	Monad.plus(Monad.unit(5L), godot));
4482	>	// godot plus f === f (doesn't wait for godot)
4483	>	Monad.assertFutureEquals(Monad.unit(5L),
4484	>	Monad.plus(godot, Monad.unit(5L)));
4485	>	}
4486	>
4487	>	/** Test long recursive chains of CompletableFutures with cascading completions */
4488	>	@SuppressWarnings("FutureReturnValueIgnored")
4489	>	public void testRecursiveChains() throws Throwable {
4490	>	for (ExecutionMode m : ExecutionMode.values())
4491	>	for (boolean addDeadEnds : new boolean[] { true, false })
4492	>	{
4493	>	final int val = 42;
4494	>	final int n = expensiveTests ? 1_000 : 2;
4495	>	CompletableFuture<Integer> head = new CompletableFuture<>();
4496	>	CompletableFuture<Integer> tail = head;
4497	>	for (int i = 0; i < n; i++) {
4498	>	if (addDeadEnds) m.thenApply(tail, v -> v + 1);
4499	>	tail = m.thenApply(tail, v -> v + 1);
4500	>	if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1);
4501	>	tail = m.applyToEither(tail, tail, v -> v + 1);
4502	>	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1);
4503	>	tail = m.thenCombine(tail, tail, (v, w) -> v + 1);
4504	>	}
4505	>	head.complete(val);
4506	>	assertEquals(val + 3 * n, (int) tail.join());
4507	>	}}
4508	>
4509	>	/**
4510	>	* A single CompletableFuture with many dependents.
4511	>	* A demo of scalability - runtime is O(n).
4512	>	*/
4513	>	@SuppressWarnings("FutureReturnValueIgnored")
4514	>	public void testManyDependents() throws Throwable {
4515	>	final int n = expensiveTests ? 1_000_000 : 10;
4516	>	final CompletableFuture<Void> head = new CompletableFuture<>();
4517	>	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4518	>	final AtomicInteger count = new AtomicInteger(0);
4519	>	for (int i = 0; i < n; i++) {
4520	>	head.thenRun(() -> count.getAndIncrement());
4521	>	head.thenAccept(x -> count.getAndIncrement());
4522	>	head.thenApply(x -> count.getAndIncrement());
4523	>
4524	>	head.runAfterBoth(complete, () -> count.getAndIncrement());
4525	>	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
4526	>	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
4527	>	complete.runAfterBoth(head, () -> count.getAndIncrement());
4528	>	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
4529	>	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4530	>
4531	>	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4532	>	head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4533	>	head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4534	>	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4535	>	new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement());
4536	>	new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement());
4537	>	}
4538	>	head.complete(null);
4539	>	assertEquals(5 * 3 * n, count.get());
4540	>	}
4541	>
4542	>	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4543	>	@SuppressWarnings("FutureReturnValueIgnored")
4544	>	public void testCoCompletionGarbageRetention() throws Throwable {
4545	>	final int n = expensiveTests ? 1_000_000 : 10;
4546	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4547	>	CompletableFuture<Integer> f;
4548	>	for (int i = 0; i < n; i++) {
4549	>	f = new CompletableFuture<>();
4550	>	f.runAfterEither(incomplete, () -> {});
4551	>	f.complete(null);
4552	>
4553	>	f = new CompletableFuture<>();
4554	>	f.acceptEither(incomplete, x -> {});
4555	>	f.complete(null);
4556	>
4557	>	f = new CompletableFuture<>();
4558	>	f.applyToEither(incomplete, x -> x);
4559	>	f.complete(null);
4560	>
4561	>	f = new CompletableFuture<>();
4562	>	CompletableFuture.anyOf(f, incomplete);
4563	>	f.complete(null);
4564	>	}
4565	>
4566	>	for (int i = 0; i < n; i++) {
4567	>	f = new CompletableFuture<>();
4568	>	incomplete.runAfterEither(f, () -> {});
4569	>	f.complete(null);
4570	>
4571	>	f = new CompletableFuture<>();
4572	>	incomplete.acceptEither(f, x -> {});
4573	>	f.complete(null);
4574	>
4575	>	f = new CompletableFuture<>();
4576	>	incomplete.applyToEither(f, x -> x);
4577	>	f.complete(null);
4578	>
4579	>	f = new CompletableFuture<>();
4580	>	CompletableFuture.anyOf(incomplete, f);
4581	>	f.complete(null);
4582	>	}
4583	>	}
4584	>
4585	>	/**
4586	>	* Reproduction recipe for:
4587	>	* 8160402: Garbage retention with CompletableFuture.anyOf
4588	>	* 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
4589	>	*/
4590	>	public void testAnyOfGarbageRetention() throws Throwable {
4591	>	for (Integer v : new Integer[] { 1, null })
4592	>	{
4593	>	final int n = expensiveTests ? 100_000 : 10;
4594	>	CompletableFuture<Integer>[] fs
4595	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4596	>	for (int i = 0; i < fs.length; i++)
4597	>	fs[i] = new CompletableFuture<>();
4598	>	fs[fs.length - 1].complete(v);
4599	>	for (int i = 0; i < n; i++)
4600	>	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4601	>	}}
4602	>
4603	>	/**
4604	>	* Checks for garbage retention with allOf.
4605	>	*
4606	>	* As of 2016-07, fails with OOME:
4607	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4608	>	*/
4609	>	public void testCancelledAllOfGarbageRetention() throws Throwable {
4610	>	final int n = expensiveTests ? 100_000 : 10;
4611	>	CompletableFuture<Integer>[] fs
4612	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4613	>	for (int i = 0; i < fs.length; i++)
4614	>	fs[i] = new CompletableFuture<>();
4615	>	for (int i = 0; i < n; i++)
4616	>	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4617	>	}
4618	>
4619	>	/**
4620	>	* Checks for garbage retention when a dependent future is
4621	>	* cancelled and garbage-collected.
4622	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4623	>	*
4624	>	* As of 2016-07, fails with OOME:
4625	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4626	>	*/
4627	>	public void testCancelledGarbageRetention() throws Throwable {
4628	>	final int n = expensiveTests ? 100_000 : 10;
4629	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4630	>	for (int i = 0; i < n; i++)
4631	>	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4632	>	}
4633	>
4634	>	/**
4635	>	* Checks for garbage retention when MinimalStage.toCompletableFuture()
4636	>	* is invoked many times.
4637	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4638	>	*
4639	>	* As of 2016-07, fails with OOME:
4640	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck
4641	>	*/
4642	>	public void testToCompletableFutureGarbageRetention() throws Throwable {
4643	>	final int n = expensiveTests ? 900_000 : 10;
4644	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4645	>	CompletionStage minimal = neverCompleted.minimalCompletionStage();
4646	>	for (int i = 0; i < n; i++)
4647	>	assertTrue(minimal.toCompletableFuture().cancel(true));
4648	>	}
4649	>
4650	>	//     static <U> U join(CompletionStage<U> stage) {
4651	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4652	>	//         stage.whenComplete((v, ex) -> {
4653	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4654	>	//         });
4655	>	//         return f.join();
4656	>	//     }
4657	>
4658	>	//     static <U> boolean isDone(CompletionStage<U> stage) {
4659	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4660	>	//         stage.whenComplete((v, ex) -> {
4661	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4662	>	//         });
4663	>	//         return f.isDone();
4664	>	//     }
4665	>
4666	>	//     static <U> U join2(CompletionStage<U> stage) {
4667	>	//         return stage.toCompletableFuture().copy().join();
4668	>	//     }
4669	>
4670	>	//     static <U> boolean isDone2(CompletionStage<U> stage) {
4671	>	//         return stage.toCompletableFuture().copy().isDone();
4672	>	//     }
4673	>
4674	>	// For testing default implementations
4675	>	// Only non-default interface methods defined.
4676	>	static final class DelegatedCompletionStage<T> implements CompletionStage<T> {
4677	>	final CompletableFuture<T> cf;
4678	>	DelegatedCompletionStage(CompletableFuture<T> cf) { this.cf = cf; }
4679	>	public CompletableFuture<T> toCompletableFuture() {
4680	>	return cf; }
4681	>	public CompletionStage<Void> thenRun
4682	>	(Runnable action) {
4683	>	return cf.thenRun(action); }
4684	>	public CompletionStage<Void> thenRunAsync
4685	>	(Runnable action) {
4686	>	return cf.thenRunAsync(action); }
4687	>	public CompletionStage<Void> thenRunAsync
4688	>	(Runnable action,
4689	>	Executor executor) {
4690	>	return cf.thenRunAsync(action, executor); }
4691	>	public CompletionStage<Void> thenAccept
4692	>	(Consumer<? super T> action) {
4693	>	return cf.thenAccept(action); }
4694	>	public CompletionStage<Void> thenAcceptAsync
4695	>	(Consumer<? super T> action) {
4696	>	return cf.thenAcceptAsync(action); }
4697	>	public CompletionStage<Void> thenAcceptAsync
4698	>	(Consumer<? super T> action,
4699	>	Executor executor) {
4700	>	return cf.thenAcceptAsync(action, executor); }
4701	>	public <U> CompletionStage<U> thenApply
4702	>	(Function<? super T,? extends U> a) {
4703	>	return cf.thenApply(a); }
4704	>	public <U> CompletionStage<U> thenApplyAsync
4705	>	(Function<? super T,? extends U> fn) {
4706	>	return cf.thenApplyAsync(fn); }
4707	>	public <U> CompletionStage<U> thenApplyAsync
4708	>	(Function<? super T,? extends U> fn,
4709	>	Executor executor) {
4710	>	return cf.thenApplyAsync(fn, executor); }
4711	>	public <U,V> CompletionStage<V> thenCombine
4712	>	(CompletionStage<? extends U> other,
4713	>	BiFunction<? super T,? super U,? extends V> fn) {
4714	>	return cf.thenCombine(other, fn); }
4715	>	public <U,V> CompletionStage<V> thenCombineAsync
4716	>	(CompletionStage<? extends U> other,
4717	>	BiFunction<? super T,? super U,? extends V> fn) {
4718	>	return cf.thenCombineAsync(other, fn); }
4719	>	public <U,V> CompletionStage<V> thenCombineAsync
4720	>	(CompletionStage<? extends U> other,
4721	>	BiFunction<? super T,? super U,? extends V> fn,
4722	>	Executor executor) {
4723	>	return cf.thenCombineAsync(other, fn, executor); }
4724	>	public <U> CompletionStage<Void> thenAcceptBoth
4725	>	(CompletionStage<? extends U> other,
4726	>	BiConsumer<? super T, ? super U> action) {
4727	>	return cf.thenAcceptBoth(other, action); }
4728	>	public <U> CompletionStage<Void> thenAcceptBothAsync
4729	>	(CompletionStage<? extends U> other,
4730	>	BiConsumer<? super T, ? super U> action) {
4731	>	return cf.thenAcceptBothAsync(other, action); }
4732	>	public <U> CompletionStage<Void> thenAcceptBothAsync
4733	>	(CompletionStage<? extends U> other,
4734	>	BiConsumer<? super T, ? super U> action,
4735	>	Executor executor) {
4736	>	return cf.thenAcceptBothAsync(other, action, executor); }
4737	>	public CompletionStage<Void> runAfterBoth
4738	>	(CompletionStage<?> other,
4739	>	Runnable action) {
4740	>	return cf.runAfterBoth(other, action); }
4741	>	public CompletionStage<Void> runAfterBothAsync
4742	>	(CompletionStage<?> other,
4743	>	Runnable action) {
4744	>	return cf.runAfterBothAsync(other, action); }
4745	>	public CompletionStage<Void> runAfterBothAsync
4746	>	(CompletionStage<?> other,
4747	>	Runnable action,
4748	>	Executor executor) {
4749	>	return cf.runAfterBothAsync(other, action, executor); }
4750	>	public <U> CompletionStage<U> applyToEither
4751	>	(CompletionStage<? extends T> other,
4752	>	Function<? super T, U> fn) {
4753	>	return cf.applyToEither(other, fn); }
4754	>	public <U> CompletionStage<U> applyToEitherAsync
4755	>	(CompletionStage<? extends T> other,
4756	>	Function<? super T, U> fn) {
4757	>	return cf.applyToEitherAsync(other, fn); }
4758	>	public <U> CompletionStage<U> applyToEitherAsync
4759	>	(CompletionStage<? extends T> other,
4760	>	Function<? super T, U> fn,
4761	>	Executor executor) {
4762	>	return cf.applyToEitherAsync(other, fn, executor); }
4763	>	public CompletionStage<Void> acceptEither
4764	>	(CompletionStage<? extends T> other,
4765	>	Consumer<? super T> action) {
4766	>	return cf.acceptEither(other, action); }
4767	>	public CompletionStage<Void> acceptEitherAsync
4768	>	(CompletionStage<? extends T> other,
4769	>	Consumer<? super T> action) {
4770	>	return cf.acceptEitherAsync(other, action); }
4771	>	public CompletionStage<Void> acceptEitherAsync
4772	>	(CompletionStage<? extends T> other,
4773	>	Consumer<? super T> action,
4774	>	Executor executor) {
4775	>	return cf.acceptEitherAsync(other, action, executor); }
4776	>	public CompletionStage<Void> runAfterEither
4777	>	(CompletionStage<?> other,
4778	>	Runnable action) {
4779	>	return cf.runAfterEither(other, action); }
4780	>	public CompletionStage<Void> runAfterEitherAsync
4781	>	(CompletionStage<?> other,
4782	>	Runnable action) {
4783	>	return cf.runAfterEitherAsync(other, action); }
4784	>	public CompletionStage<Void> runAfterEitherAsync
4785	>	(CompletionStage<?> other,
4786	>	Runnable action,
4787	>	Executor executor) {
4788	>	return cf.runAfterEitherAsync(other, action, executor); }
4789	>	public <U> CompletionStage<U> thenCompose
4790	>	(Function<? super T, ? extends CompletionStage<U>> fn) {
4791	>	return cf.thenCompose(fn); }
4792	>	public <U> CompletionStage<U> thenComposeAsync
4793	>	(Function<? super T, ? extends CompletionStage<U>> fn) {
4794	>	return cf.thenComposeAsync(fn); }
4795	>	public <U> CompletionStage<U> thenComposeAsync
4796	>	(Function<? super T, ? extends CompletionStage<U>> fn,
4797	>	Executor executor) {
4798	>	return cf.thenComposeAsync(fn, executor); }
4799	>	public <U> CompletionStage<U> handle
4800	>	(BiFunction<? super T, Throwable, ? extends U> fn) {
4801	>	return cf.handle(fn); }
4802	>	public <U> CompletionStage<U> handleAsync
4803	>	(BiFunction<? super T, Throwable, ? extends U> fn) {
4804	>	return cf.handleAsync(fn); }
4805	>	public <U> CompletionStage<U> handleAsync
4806	>	(BiFunction<? super T, Throwable, ? extends U> fn,
4807	>	Executor executor) {
4808	>	return cf.handleAsync(fn, executor); }
4809	>	public CompletionStage<T> whenComplete
4810	>	(BiConsumer<? super T, ? super Throwable> action) {
4811	>	return cf.whenComplete(action); }
4812	>	public CompletionStage<T> whenCompleteAsync
4813	>	(BiConsumer<? super T, ? super Throwable> action) {
4814	>	return cf.whenCompleteAsync(action); }
4815	>	public CompletionStage<T> whenCompleteAsync
4816	>	(BiConsumer<? super T, ? super Throwable> action,
4817	>	Executor executor) {
4818	>	return cf.whenCompleteAsync(action, executor); }
4819	>	public CompletionStage<T> exceptionally
4820	>	(Function<Throwable, ? extends T> fn) {
4821	>	return cf.exceptionally(fn); }
4822	>	}
4823	>
4824	>	/**
4825	>	* default-implemented exceptionallyAsync action is not invoked when
4826	>	* source completes normally, and source result is propagated
4827	>	*/
4828	>	public void testDefaultExceptionallyAsync_normalCompletion() {
4829	>	for (boolean createIncomplete : new boolean[] { true, false })
4830	>	for (Integer v1 : new Integer[] { 1, null })
4831	>	{
4832	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4833	>	final DelegatedCompletionStage<Integer> d =
4834	>	new DelegatedCompletionStage<Integer>(f);
4835	>	if (!createIncomplete) assertTrue(f.complete(v1));
4836	>	final CompletionStage<Integer> g = d.exceptionallyAsync
4837	>	((Throwable t) -> {
4838	>	threadFail("should not be called");
4839	>	return null;            // unreached
4840	>	});
4841	>	if (createIncomplete) assertTrue(f.complete(v1));
4842	>
4843	>	checkCompletedNormally(g.toCompletableFuture(), v1);
4844	>	}}
4845	>
4846	>	/**
4847	>	* default-implemented exceptionallyAsync action completes with
4848	>	* function value on source exception
4849	>	*/
4850	>	public void testDefaultExceptionallyAsync_exceptionalCompletion() {
4851	>	for (boolean createIncomplete : new boolean[] { true, false })
4852	>	for (Integer v1 : new Integer[] { 1, null })
4853	>	{
4854	>	final AtomicInteger a = new AtomicInteger(0);
4855	>	final CFException ex = new CFException();
4856	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4857	>	final DelegatedCompletionStage<Integer> d =
4858	>	new DelegatedCompletionStage<Integer>(f);
4859	>	if (!createIncomplete) f.completeExceptionally(ex);
4860	>	final CompletionStage<Integer> g = d.exceptionallyAsync
4861	>	((Throwable t) -> {
4862	>	threadAssertSame(t, ex);
4863	>	a.getAndIncrement();
4864	>	return v1;
4865	>	});
4866	>	if (createIncomplete) f.completeExceptionally(ex);
4867	>
4868	>	checkCompletedNormally(g.toCompletableFuture(), v1);
4869	>	assertEquals(1, a.get());
4870	>	}}
4871	>
4872	>	/**
4873	>	* Under default implementation, if an "exceptionally action"
4874	>	* throws an exception, it completes exceptionally with that
4875	>	* exception
4876	>	*/
4877	>	public void testDefaultExceptionallyAsync_exceptionalCompletionActionFailed() {
4878	>	for (boolean createIncomplete : new boolean[] { true, false })
4879	>	{
4880	>	final AtomicInteger a = new AtomicInteger(0);
4881	>	final CFException ex1 = new CFException();
4882	>	final CFException ex2 = new CFException();
4883	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4884	>	final DelegatedCompletionStage<Integer> d =
4885	>	new DelegatedCompletionStage<Integer>(f);
4886	>	if (!createIncomplete) f.completeExceptionally(ex1);
4887	>	final CompletionStage<Integer> g = d.exceptionallyAsync
4888	>	((Throwable t) -> {
4889	>	threadAssertSame(t, ex1);
4890	>	a.getAndIncrement();
4891	>	throw ex2;
4892	>	});
4893	>	if (createIncomplete) f.completeExceptionally(ex1);
4894	>
4895	>	checkCompletedWithWrappedException(g.toCompletableFuture(), ex2);
4896	>	checkCompletedExceptionally(f, ex1);
4897	>	checkCompletedExceptionally(d.toCompletableFuture(), ex1);
4898	>	assertEquals(1, a.get());
4899	>	}}
4900	>
4901	>	/**
4902	>	* default-implemented exceptionallyCompose result completes
4903	>	* normally after normal completion of source
4904	>	*/
4905	>	public void testDefaultExceptionallyCompose_normalCompletion() {
4906	>	for (boolean createIncomplete : new boolean[] { true, false })
4907	>	for (Integer v1 : new Integer[] { 1, null })
4908	>	{
4909	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4910	>	final ExceptionalCompletableFutureFunction r =
4911	>	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4912	>	final DelegatedCompletionStage<Integer> d =
4913	>	new DelegatedCompletionStage<Integer>(f);
4914	>	if (!createIncomplete) assertTrue(f.complete(v1));
4915	>	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4916	>	if (createIncomplete) assertTrue(f.complete(v1));
4917	>
4918	>	checkCompletedNormally(f, v1);
4919	>	checkCompletedNormally(g.toCompletableFuture(), v1);
4920	>	r.assertNotInvoked();
4921	>	}}
4922	>
4923	>	/**
4924	>	* default-implemented exceptionallyCompose result completes
4925	>	* normally after exceptional completion of source
4926	>	*/
4927	>	public void testDefaultExceptionallyCompose_exceptionalCompletion() {
4928	>	for (boolean createIncomplete : new boolean[] { true, false })
4929	>	{
4930	>	final CFException ex = new CFException();
4931	>	final ExceptionalCompletableFutureFunction r =
4932	>	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4933	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4934	>	final DelegatedCompletionStage<Integer> d =
4935	>	new DelegatedCompletionStage<Integer>(f);
4936	>	if (!createIncomplete) f.completeExceptionally(ex);
4937	>	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4938	>	if (createIncomplete) f.completeExceptionally(ex);
4939	>
4940	>	checkCompletedExceptionally(f, ex);
4941	>	checkCompletedNormally(g.toCompletableFuture(), r.value);
4942	>	r.assertInvoked();
4943	>	}}
4944	>
4945	>	/**
4946	>	* default-implemented exceptionallyCompose completes
4947	>	* exceptionally on exception if action does
4948	>	*/
4949	>	public void testDefaultExceptionallyCompose_actionFailed() {
4950	>	for (boolean createIncomplete : new boolean[] { true, false })
4951	>	{
4952	>	final CFException ex = new CFException();
4953	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4954	>	final FailingExceptionalCompletableFutureFunction r
4955	>	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4956	>	final DelegatedCompletionStage<Integer> d =
4957	>	new DelegatedCompletionStage<Integer>(f);
4958	>	if (!createIncomplete) f.completeExceptionally(ex);
4959	>	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4960	>	if (createIncomplete) f.completeExceptionally(ex);
4961	>
4962	>	checkCompletedExceptionally(f, ex);
4963	>	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4964	>	r.assertInvoked();
4965	>	}}
4966	>
4967	>	/**
4968	>	* default-implemented exceptionallyComposeAsync result completes
4969	>	* normally after normal completion of source
4970	>	*/
4971	>	public void testDefaultExceptionallyComposeAsync_normalCompletion() {
4972	>	for (boolean createIncomplete : new boolean[] { true, false })
4973	>	for (Integer v1 : new Integer[] { 1, null })
4974	>	{
4975	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4976	>	final ExceptionalCompletableFutureFunction r =
4977	>	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4978	>	final DelegatedCompletionStage<Integer> d =
4979	>	new DelegatedCompletionStage<Integer>(f);
4980	>	if (!createIncomplete) assertTrue(f.complete(v1));
4981	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4982	>	if (createIncomplete) assertTrue(f.complete(v1));
4983	>
4984	>	checkCompletedNormally(f, v1);
4985	>	checkCompletedNormally(g.toCompletableFuture(), v1);
4986	>	r.assertNotInvoked();
4987	>	}}
4988	>
4989	>	/**
4990	>	* default-implemented exceptionallyComposeAsync result completes
4991	>	* normally after exceptional completion of source
4992	>	*/
4993	>	public void testDefaultExceptionallyComposeAsync_exceptionalCompletion() {
4994	>	for (boolean createIncomplete : new boolean[] { true, false })
4995	>	{
4996	>	final CFException ex = new CFException();
4997	>	final ExceptionalCompletableFutureFunction r =
4998	>	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4999	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
5000	>	final DelegatedCompletionStage<Integer> d =
5001	>	new DelegatedCompletionStage<Integer>(f);
5002	>	if (!createIncomplete) f.completeExceptionally(ex);
5003	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5004	>	if (createIncomplete) f.completeExceptionally(ex);
5005	>
5006	>	checkCompletedExceptionally(f, ex);
5007	>	checkCompletedNormally(g.toCompletableFuture(), r.value);
5008	>	r.assertInvoked();
5009	>	}}
5010	>
5011	>	/**
5012	>	* default-implemented exceptionallyComposeAsync completes
5013	>	* exceptionally on exception if action does
5014	>	*/
5015	>	public void testDefaultExceptionallyComposeAsync_actionFailed() {
5016	>	for (boolean createIncomplete : new boolean[] { true, false })
5017	>	{
5018	>	final CFException ex = new CFException();
5019	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
5020	>	final FailingExceptionalCompletableFutureFunction r
5021	>	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
5022	>	final DelegatedCompletionStage<Integer> d =
5023	>	new DelegatedCompletionStage<Integer>(f);
5024	>	if (!createIncomplete) f.completeExceptionally(ex);
5025	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5026	>	if (createIncomplete) f.completeExceptionally(ex);
5027	>
5028	>	checkCompletedExceptionally(f, ex);
5029	>	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5030	>	r.assertInvoked();
5031	>	}}
5032	>
5033	>	/**
5034	>	* default-implemented exceptionallyComposeAsync result completes
5035	>	* normally after normal completion of source
5036	>	*/
5037	>	public void testDefaultExceptionallyComposeAsyncExecutor_normalCompletion() {
5038	>	for (boolean createIncomplete : new boolean[] { true, false })
5039	>	for (Integer v1 : new Integer[] { 1, null })
5040	>	{
5041	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
5042	>	final ExceptionalCompletableFutureFunction r =
5043	>	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5044	>	final DelegatedCompletionStage<Integer> d =
5045	>	new DelegatedCompletionStage<Integer>(f);
5046	>	if (!createIncomplete) assertTrue(f.complete(v1));
5047	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5048	>	if (createIncomplete) assertTrue(f.complete(v1));
5049	>
5050	>	checkCompletedNormally(f, v1);
5051	>	checkCompletedNormally(g.toCompletableFuture(), v1);
5052	>	r.assertNotInvoked();
5053	>	}}
5054	>
5055	>	/**
5056	>	* default-implemented exceptionallyComposeAsync result completes
5057	>	* normally after exceptional completion of source
5058	>	*/
5059	>	public void testDefaultExceptionallyComposeAsyncExecutor_exceptionalCompletion() {
5060	>	for (boolean createIncomplete : new boolean[] { true, false })
5061	>	{
5062	>	final CFException ex = new CFException();
5063	>	final ExceptionalCompletableFutureFunction r =
5064	>	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5065	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
5066	>	final DelegatedCompletionStage<Integer> d =
5067	>	new DelegatedCompletionStage<Integer>(f);
5068	>	if (!createIncomplete) f.completeExceptionally(ex);
5069	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5070	>	if (createIncomplete) f.completeExceptionally(ex);
5071	>
5072	>	checkCompletedExceptionally(f, ex);
5073	>	checkCompletedNormally(g.toCompletableFuture(), r.value);
5074	>	r.assertInvoked();
5075	>	}}
5076	>
5077	>	/**
5078	>	* default-implemented exceptionallyComposeAsync completes
5079	>	* exceptionally on exception if action does
5080	>	*/
5081	>	public void testDefaultExceptionallyComposeAsyncExecutor_actionFailed() {
5082	>	for (boolean createIncomplete : new boolean[] { true, false })
5083	>	{
5084	>	final CFException ex = new CFException();
5085	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
5086	>	final FailingExceptionalCompletableFutureFunction r
5087	>	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5088	>	final DelegatedCompletionStage<Integer> d =
5089	>	new DelegatedCompletionStage<Integer>(f);
5090	>	if (!createIncomplete) f.completeExceptionally(ex);
5091	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5092	>	if (createIncomplete) f.completeExceptionally(ex);
5093	>
5094	>	checkCompletedExceptionally(f, ex);
5095	>	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5096	>	r.assertInvoked();
5097	>	}}
5098
5099		}

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