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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.114 by jsr166, Fri Sep 4 19:59:18 2015 UTC vs.
Revision 1.209 by jsr166, Sun Sep 23 17:02:24 2018 UTC

#	Line 7 | Line 7
7
8		import static java.util.concurrent.TimeUnit.MILLISECONDS;
9		import static java.util.concurrent.TimeUnit.SECONDS;
10	+	import static java.util.concurrent.CompletableFuture.completedFuture;
11	+	import static java.util.concurrent.CompletableFuture.failedFuture;
12	+
13	+	import java.lang.reflect.Method;
14	+	import java.lang.reflect.Modifier;
15	+
16	+	import java.util.stream.Collectors;
17	+	import java.util.stream.Stream;
18
19		import java.util.ArrayList;
20	+	import java.util.Arrays;
21		import java.util.List;
22		import java.util.Objects;
23	+	import java.util.Set;
24		import java.util.concurrent.Callable;
25		import java.util.concurrent.CancellationException;
26		import java.util.concurrent.CompletableFuture;
#	Line 20 | Line 30 | import java.util.concurrent.ExecutionExc
30		import java.util.concurrent.Executor;
31		import java.util.concurrent.ForkJoinPool;
32		import java.util.concurrent.ForkJoinTask;
33	+	import java.util.concurrent.RejectedExecutionException;
34		import java.util.concurrent.TimeoutException;
24	–	import java.util.concurrent.TimeUnit;
35		import java.util.concurrent.atomic.AtomicInteger;
36		import java.util.concurrent.atomic.AtomicReference;
37		import java.util.function.BiConsumer;
38		import java.util.function.BiFunction;
39		import java.util.function.Consumer;
40		import java.util.function.Function;
41	+	import java.util.function.Predicate;
42		import java.util.function.Supplier;
43
44		import junit.framework.Test;
#	Line 47 | 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	<	checkTimedGet(f, value);
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.join());
67	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
68	<	try {
69	<	assertEquals(value, f.getNow(null));
70	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
71	<	try {
72	<	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	<	long startTime = System.nanoTime();
97	<	long timeoutMillis = LONG_DELAY_MS;
98	<	try {
99	<	f.get(timeoutMillis, MILLISECONDS);
100	<	shouldThrow();
101	<	} catch (ExecutionException success) {
102	<	assertTrue(success.getCause() instanceof CFException);
103	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
89	<	assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
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	<	try {
106	<	f.join();
107	<	shouldThrow();
108	<	} catch (CompletionException success) {
109	<	assertTrue(success.getCause() instanceof CFException);
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	<	try {
98	<	f.getNow(null);
99	<	shouldThrow();
100	<	} catch (CompletionException success) {
101	<	assertTrue(success.getCause() instanceof CFException);
102	<	}
103	<	try {
104	<	f.get();
105	<	shouldThrow();
106	<	} catch (ExecutionException success) {
107	<	assertTrue(success.getCause() instanceof CFException);
108	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
109	<	assertTrue(f.isDone());
110	<	assertFalse(f.isCancelled());
111	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
112	<	}
113	>	checker.accept(cause);
114
114	–	<U> void checkCompletedExceptionallyWithRootCause(CompletableFuture<U> f,
115	–	Throwable ex) {
115		long startTime = System.nanoTime();
117	–	long timeoutMillis = LONG_DELAY_MS;
116		try {
117	<	f.get(timeoutMillis, MILLISECONDS);
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) < timeoutMillis/2);
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
145	–	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 checkCompletedExceptionallyWithTimeout(CompletableFuture<U> f) {
152	<	long startTime = System.nanoTime();
153	<	long timeoutMillis = LONG_DELAY_MS;
154	<	try {
154	<	f.get(timeoutMillis, MILLISECONDS);
155	<	shouldThrow();
156	<	} catch (ExecutionException ex) {
157	<	assertTrue(ex.getCause() instanceof TimeoutException);
158	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
159	<	assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
160	<
161	<	try {
162	<	f.join();
163	<	shouldThrow();
164	<	} catch (Throwable ex) {
165	<	assertTrue(ex.getCause() instanceof TimeoutException);
166	<	}
167	<
168	<	try {
169	<	f.getNow(null);
170	<	shouldThrow();
171	<	} catch (Throwable ex) {
172	<	assertTrue(ex.getCause() instanceof TimeoutException);
173	<	}
151	>	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
152	>	checkCompletedExceptionally(f, true,
153	>	t -> assertTrue(t instanceof CFException));
154	>	}
155
156	<	try {
157	<	f.get();
158	<	shouldThrow();
159	<	} catch (ExecutionException ex) {
179	<	assertTrue(ex.getCause() instanceof TimeoutException);
180	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
156	>	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
157	>	checkCompletedExceptionally(f, true,
158	>	t -> assertTrue(t instanceof CancellationException));
159	>	}
160
161	<	assertTrue(f.isDone());
162	<	assertFalse(f.isCancelled());
163	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
161	>	void checkCompletedWithTimeoutException(CompletableFuture<?> f) {
162	>	checkCompletedExceptionally(f, false,
163	>	t -> assertTrue(t instanceof TimeoutException));
164		}
165
166	<	<U> void checkCompletedWithWrappedException(CompletableFuture<U> f,
167	<	Throwable ex) {
168	<	checkCompletedExceptionallyWithRootCause(f, ex);
190	<	try {
191	<	CompletableFuture<Throwable> spy = f.handle
192	<	((U u, Throwable t) -> t);
193	<	assertTrue(spy.join() instanceof CompletionException);
194	<	assertSame(ex, spy.join().getCause());
195	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
166	>	void checkCompletedWithWrappedException(CompletableFuture<?> f,
167	>	Throwable ex) {
168	>	checkCompletedExceptionally(f, true, t -> assertSame(t, ex));
169		}
170
171	<	<U> void checkCompletedExceptionally(CompletableFuture<U> f, Throwable ex) {
172	<	checkCompletedExceptionallyWithRootCause(f, ex);
200	<	try {
201	<	CompletableFuture<Throwable> spy = f.handle
202	<	((U u, Throwable t) -> t);
203	<	assertSame(ex, spy.join());
204	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
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();
209	–	long timeoutMillis = LONG_DELAY_MS;
177		try {
178	<	f.get(timeoutMillis, MILLISECONDS);
178	>	f.get(LONG_DELAY_MS, MILLISECONDS);
179		shouldThrow();
180		} catch (CancellationException success) {
181		} catch (Throwable fail) { threadUnexpectedException(fail); }
182	<	assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
182	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
183
184		try {
185		f.join();
#	Line 227 | Line 194 | public class CompletableFutureTest exten
194		shouldThrow();
195		} catch (CancellationException success) {
196		} catch (Throwable fail) { threadUnexpectedException(fail); }
230	–	assertTrue(f.isDone());
231	–	assertTrue(f.isCompletedExceptionally());
232	–	assertTrue(f.isCancelled());
233	–	assertTrue(f.toString().contains("[Completed exceptionally]"));
234	–	}
197
198	<	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
237	<	long startTime = System.nanoTime();
238	<	long timeoutMillis = LONG_DELAY_MS;
239	<	try {
240	<	f.get(timeoutMillis, MILLISECONDS);
241	<	shouldThrow();
242	<	} catch (ExecutionException success) {
243	<	assertTrue(success.getCause() instanceof CancellationException);
244	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
245	<	assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
198	>	assertTrue(exceptionalCompletion(f) instanceof CancellationException);
199
247	–	try {
248	–	f.join();
249	–	shouldThrow();
250	–	} catch (CompletionException success) {
251	–	assertTrue(success.getCause() instanceof CancellationException);
252	–	}
253	–	try {
254	–	f.getNow(null);
255	–	shouldThrow();
256	–	} catch (CompletionException success) {
257	–	assertTrue(success.getCause() instanceof CancellationException);
258	–	}
259	–	try {
260	–	f.get();
261	–	shouldThrow();
262	–	} catch (ExecutionException success) {
263	–	assertTrue(success.getCause() instanceof CancellationException);
264	–	} catch (Throwable fail) { threadUnexpectedException(fail); }
200		assertTrue(f.isDone());
266	–	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 364 | 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 401 | 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 429 | 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 441 | 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 450 | 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 469 | 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 479 | 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 497 | 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 507 | 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 517 | 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	<	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 704 | 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		},
708	–
704		ASYNC {
705		public void checkExecutionMode() {
706		assertEquals(defaultExecutorIsCommonPool,
#	Line 778 | 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 851 | 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 893 | 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 900 | 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		{
906	–	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();
913	<	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);
919	–	assertEquals(0, a.get());
940		}}
941
942		/**
#	Line 924 | 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 931 | 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.SYNC.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 944 | 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 })
975		{
976		final AtomicInteger a = new AtomicInteger(0);
#	Line 952 | Line 978 | public class CompletableFutureTest exten
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.SYNC.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 962 | 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 969 | 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 979 | 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 1006 | 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 1033 | 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 1050 | 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 1061 | 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 1078 | 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())
1113		{
#	Line 1092 | 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 1103 | 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 1120 | 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 1149 | 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 1178 | 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 1193 | 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();
1206	<	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		{
1228	–	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 1274 | 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 1308 | 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 1430 | Line 1494 | public class CompletableFutureTest exten
1494		final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1495		final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1496
1497	<	checkCompletedWithWrappedCFException(h0);
1498	<	checkCompletedWithWrappedCFException(h1);
1499	<	checkCompletedWithWrappedCFException(h2);
1500	<	checkCompletedWithWrappedCFException(h3);
1501	<	checkCompletedWithWrappedCFException(h4);
1502	<	checkCompletedWithWrappedCFException(h5);
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 1534 | Line 1598 | public class CompletableFutureTest exten
1598		final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1599		final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1600
1601	<	checkCompletedWithWrappedCFException(h0);
1602	<	checkCompletedWithWrappedCFException(h1);
1603	<	checkCompletedWithWrappedCFException(h2);
1604	<	checkCompletedWithWrappedCFException(h3);
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 1636 | Line 1700 | public class CompletableFutureTest exten
1700		final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1701		final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1702
1703	<	checkCompletedWithWrappedCFException(h0);
1704	<	checkCompletedWithWrappedCFException(h1);
1705	<	checkCompletedWithWrappedCFException(h2);
1706	<	checkCompletedWithWrappedCFException(h3);
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 1801 | 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();
#	Line 1965 | 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();
#	Line 2129 | Line 2193 | public class CompletableFutureTest exten
2193		assertTrue(snd.complete(w2));
2194		final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2195
2196	<	checkCompletedWithWrappedCFException(h1);
2197	<	checkCompletedWithWrappedCFException(h2);
2198	<	checkCompletedWithWrappedCFException(h3);
2196	>	checkCompletedWithWrappedException(h1, r1.ex);
2197	>	checkCompletedWithWrappedException(h2, r2.ex);
2198	>	checkCompletedWithWrappedException(h3, r3.ex);
2199		r1.assertInvoked();
2200		r2.assertInvoked();
2201		r3.assertInvoked();
#	Line 2421 | 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 2433 | 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 2574 | 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 2680 | 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 2692 | 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 2711 | 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 2723 | 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 2829 | 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 2935 | 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 3005 | 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 3082 | Line 3151 | public class CompletableFutureTest exten
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	+	if (!createIncomplete && testImplementationDetails)
3171	+	assertSame(f, g);   // an optimization
3172	+
3173	+	checkCompletedNormally(f, v1);
3174	+	checkCompletedNormally(g, v1);
3175	+	r.assertNotInvoked();
3176	+	}}
3177	+
3178	+	/**
3179	+	* exceptionallyCompose result completes normally after exceptional
3180	+	* completion of source
3181	+	*/
3182	+	public void testExceptionallyCompose_exceptionalCompletion() {
3183	+	for (ExecutionMode m : ExecutionMode.values())
3184	+	for (boolean createIncomplete : new boolean[] { true, false })
3185	+	{
3186	+	final CFException ex = new CFException();
3187	+	final ExceptionalCompletableFutureFunction r =
3188	+	new ExceptionalCompletableFutureFunction(m);
3189	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3190	+	if (!createIncomplete) f.completeExceptionally(ex);
3191	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3192	+	if (createIncomplete) f.completeExceptionally(ex);
3193	+
3194	+	checkCompletedExceptionally(f, ex);
3195	+	checkCompletedNormally(g, r.value);
3196	+	r.assertInvoked();
3197	+	}}
3198	+
3199	+	/**
3200	+	* exceptionallyCompose completes exceptionally on exception if action does
3201	+	*/
3202	+	public void testExceptionallyCompose_actionFailed() {
3203	+	for (ExecutionMode m : ExecutionMode.values())
3204	+	for (boolean createIncomplete : new boolean[] { true, false })
3205	+	for (Integer v1 : new Integer[] { 1, null })
3206	+	{
3207	+	final CFException ex = new CFException();
3208	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3209	+	final FailingExceptionalCompletableFutureFunction r
3210	+	= new FailingExceptionalCompletableFutureFunction(m);
3211	+	if (!createIncomplete) f.completeExceptionally(ex);
3212	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3213	+	if (createIncomplete) f.completeExceptionally(ex);
3214	+
3215	+	checkCompletedExceptionally(f, ex);
3216	+	checkCompletedWithWrappedException(g, r.ex);
3217	+	r.assertInvoked();
3218	+	}}
3219	+
3220	+	/**
3221	+	* thenComposeExceptionally result completes exceptionally if the
3222	+	* result of the action does
3223	+	*/
3224	+	public void testExceptionallyCompose_actionReturnsFailingFuture() {
3225	+	for (ExecutionMode m : ExecutionMode.values())
3226	+	for (int order = 0; order < 6; order++)
3227	+	for (Integer v1 : new Integer[] { 1, null })
3228	+	{
3229	+	final CFException ex0 = new CFException();
3230	+	final CFException ex = new CFException();
3231	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3232	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
3233	+	final CompletableFuture<Integer> h;
3234	+	// Test all permutations of orders
3235	+	switch (order) {
3236	+	case 0:
3237	+	assertTrue(f.completeExceptionally(ex0));
3238	+	assertTrue(g.completeExceptionally(ex));
3239	+	h = m.exceptionallyCompose(f, (x -> g));
3240	+	break;
3241	+	case 1:
3242	+	assertTrue(f.completeExceptionally(ex0));
3243	+	h = m.exceptionallyCompose(f, (x -> g));
3244	+	assertTrue(g.completeExceptionally(ex));
3245	+	break;
3246	+	case 2:
3247	+	assertTrue(g.completeExceptionally(ex));
3248	+	assertTrue(f.completeExceptionally(ex0));
3249	+	h = m.exceptionallyCompose(f, (x -> g));
3250	+	break;
3251	+	case 3:
3252	+	assertTrue(g.completeExceptionally(ex));
3253	+	h = m.exceptionallyCompose(f, (x -> g));
3254	+	assertTrue(f.completeExceptionally(ex0));
3255	+	break;
3256	+	case 4:
3257	+	h = m.exceptionallyCompose(f, (x -> g));
3258	+	assertTrue(f.completeExceptionally(ex0));
3259	+	assertTrue(g.completeExceptionally(ex));
3260	+	break;
3261	+	case 5:
3262	+	h = m.exceptionallyCompose(f, (x -> g));
3263	+	assertTrue(f.completeExceptionally(ex0));
3264	+	assertTrue(g.completeExceptionally(ex));
3265	+	break;
3266	+	default: throw new AssertionError();
3267	+	}
3268	+
3269	+	checkCompletedExceptionally(g, ex);
3270	+
3271	+	// TODO: should this be: checkCompletedWithWrappedException(h, ex);
3272	+	try {
3273	+	h.join();
3274	+	shouldThrow();
3275	+	} catch (Throwable t) {
3276	+	assertSame(ex, (t instanceof CompletionException) ? t.getCause() : t);
3277	+	}
3278	+
3279	+	checkCompletedExceptionally(f, ex0);
3280	+	}}
3281	+
3282		// other static methods
3283
3284		/**
#	Line 3114 | Line 3311 | public class CompletableFutureTest exten
3311		}
3312		}
3313
3314	<	public void testAllOf_backwards() throws Exception {
3314	>	public void testAllOf_normal_backwards() throws Exception {
3315		for (int k = 1; k < 10; k++) {
3316		CompletableFuture<Integer>[] fs
3317		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
#	Line 3142 | Line 3339 | public class CompletableFutureTest exten
3339		for (int i = 0; i < k; i++) {
3340		checkIncomplete(f);
3341		checkIncomplete(CompletableFuture.allOf(fs));
3342	<	if (i != k/2) {
3342	>	if (i != k / 2) {
3343		fs[i].complete(i);
3344		checkCompletedNormally(fs[i], i);
3345		} else {
#	Line 3245 | Line 3442 | public class CompletableFutureTest exten
3442		/**
3443		* Completion methods throw NullPointerException with null arguments
3444		*/
3445	+	@SuppressWarnings("FutureReturnValueIgnored")
3446		public void testNPE() {
3447		CompletableFuture<Integer> f = new CompletableFuture<>();
3448		CompletableFuture<Integer> g = new CompletableFuture<>();
#	Line 3264 | Line 3462 | public class CompletableFutureTest exten
3462
3463		() -> f.thenApply(null),
3464		() -> f.thenApplyAsync(null),
3465	<	() -> f.thenApplyAsync((x) -> x, null),
3465	>	() -> f.thenApplyAsync(x -> x, null),
3466		() -> f.thenApplyAsync(null, exec),
3467
3468		() -> f.thenAccept(null),
3469		() -> f.thenAcceptAsync(null),
3470	<	() -> f.thenAcceptAsync((x) -> {} , null),
3470	>	() -> f.thenAcceptAsync(x -> {} , null),
3471		() -> f.thenAcceptAsync(null, exec),
3472
3473		() -> f.thenRun(null),
#	Line 3304 | Line 3502 | public class CompletableFutureTest exten
3502		() -> f.applyToEither(g, null),
3503		() -> f.applyToEitherAsync(g, null),
3504		() -> f.applyToEitherAsync(g, null, exec),
3505	<	() -> f.applyToEither(nullFuture, (x) -> x),
3506	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x),
3507	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
3508	<	() -> f.applyToEitherAsync(g, (x) -> x, null),
3505	>	() -> f.applyToEither(nullFuture, x -> x),
3506	>	() -> f.applyToEitherAsync(nullFuture, x -> x),
3507	>	() -> f.applyToEitherAsync(nullFuture, x -> x, exec),
3508	>	() -> f.applyToEitherAsync(g, x -> x, null),
3509
3510		() -> f.acceptEither(g, null),
3511		() -> f.acceptEitherAsync(g, null),
3512		() -> f.acceptEitherAsync(g, null, exec),
3513	<	() -> f.acceptEither(nullFuture, (x) -> {}),
3514	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}),
3515	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
3516	<	() -> f.acceptEitherAsync(g, (x) -> {}, null),
3513	>	() -> f.acceptEither(nullFuture, x -> {}),
3514	>	() -> f.acceptEitherAsync(nullFuture, x -> {}),
3515	>	() -> f.acceptEitherAsync(nullFuture, x -> {}, exec),
3516	>	() -> f.acceptEitherAsync(g, x -> {}, null),
3517
3518		() -> f.runAfterEither(g, null),
3519		() -> f.runAfterEitherAsync(g, null),
#	Line 3345 | Line 3543 | public class CompletableFutureTest exten
3543		() -> CompletableFuture.anyOf(null, f),
3544
3545		() -> f.obtrudeException(null),
3546	+
3547	+	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3548	+	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3549	+	() -> CompletableFuture.delayedExecutor(1L, null),
3550	+
3551	+	() -> f.orTimeout(1L, null),
3552	+	() -> f.completeOnTimeout(42, 1L, null),
3553	+
3554	+	() -> CompletableFuture.failedFuture(null),
3555	+	() -> CompletableFuture.failedStage(null),
3556		};
3557
3558		assertThrows(NullPointerException.class, throwingActions);
#	Line 3352 | Line 3560 | public class CompletableFutureTest exten
3560		}
3561
3562		/**
3563	+	* Test submissions to an executor that rejects all tasks.
3564	+	*/
3565	+	public void testRejectingExecutor() {
3566	+	for (Integer v : new Integer[] { 1, null })
3567	+	{
3568	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3569	+
3570	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3571	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3572	+
3573	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3574	+
3575	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3576	+	srcs.add(complete);
3577	+	srcs.add(incomplete);
3578	+
3579	+	for (CompletableFuture<Integer> src : srcs) {
3580	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3581	+	fs.add(src.thenRunAsync(() -> {}, e));
3582	+	fs.add(src.thenAcceptAsync(z -> {}, e));
3583	+	fs.add(src.thenApplyAsync(z -> z, e));
3584	+
3585	+	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3586	+	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3587	+	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3588	+
3589	+	fs.add(src.applyToEitherAsync(src, z -> z, e));
3590	+	fs.add(src.acceptEitherAsync(src, z -> {}, e));
3591	+	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3592	+
3593	+	fs.add(src.thenComposeAsync(z -> null, e));
3594	+	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3595	+	fs.add(src.handleAsync((z, t) -> null, e));
3596	+
3597	+	for (CompletableFuture<?> future : fs) {
3598	+	if (src.isDone())
3599	+	checkCompletedWithWrappedException(future, e.ex);
3600	+	else
3601	+	checkIncomplete(future);
3602	+	}
3603	+	futures.addAll(fs);
3604	+	}
3605	+
3606	+	{
3607	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3608	+
3609	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3610	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3611	+
3612	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3613	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3614	+
3615	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3616	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3617	+
3618	+	for (CompletableFuture<?> future : fs)
3619	+	checkIncomplete(future);
3620	+	futures.addAll(fs);
3621	+	}
3622	+
3623	+	{
3624	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3625	+
3626	+	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3627	+	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3628	+
3629	+	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3630	+	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3631	+
3632	+	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3633	+	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3634	+
3635	+	for (CompletableFuture<?> future : fs)
3636	+	checkCompletedWithWrappedException(future, e.ex);
3637	+	futures.addAll(fs);
3638	+	}
3639	+
3640	+	incomplete.complete(v);
3641	+
3642	+	for (CompletableFuture<?> future : futures)
3643	+	checkCompletedWithWrappedException(future, e.ex);
3644	+
3645	+	assertEquals(futures.size(), e.count.get());
3646	+	}}
3647	+
3648	+	/**
3649	+	* Test submissions to an executor that rejects all tasks, but
3650	+	* should never be invoked because the dependent future is
3651	+	* explicitly completed.
3652	+	*/
3653	+	public void testRejectingExecutorNeverInvoked() {
3654	+	for (Integer v : new Integer[] { 1, null })
3655	+	{
3656	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3657	+
3658	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3659	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3660	+
3661	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3662	+
3663	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3664	+	srcs.add(complete);
3665	+	srcs.add(incomplete);
3666	+
3667	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3668	+	fs.add(incomplete.thenRunAsync(() -> {}, e));
3669	+	fs.add(incomplete.thenAcceptAsync(z -> {}, e));
3670	+	fs.add(incomplete.thenApplyAsync(z -> z, e));
3671	+
3672	+	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3673	+	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3674	+	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3675	+
3676	+	fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e));
3677	+	fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e));
3678	+	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3679	+
3680	+	fs.add(incomplete.thenComposeAsync(z -> null, e));
3681	+	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3682	+	fs.add(incomplete.handleAsync((z, t) -> null, e));
3683	+
3684	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3685	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3686	+
3687	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3688	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3689	+
3690	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3691	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3692	+
3693	+	for (CompletableFuture<?> future : fs)
3694	+	checkIncomplete(future);
3695	+
3696	+	for (CompletableFuture<?> future : fs)
3697	+	future.complete(null);
3698	+
3699	+	incomplete.complete(v);
3700	+
3701	+	for (CompletableFuture<?> future : fs)
3702	+	checkCompletedNormally(future, null);
3703	+
3704	+	assertEquals(0, e.count.get());
3705	+	}}
3706	+
3707	+	/**
3708		* toCompletableFuture returns this CompletableFuture.
3709		*/
3710		public void testToCompletableFuture() {
#	Line 3365 | Line 3718 | public class CompletableFutureTest exten
3718		* newIncompleteFuture returns an incomplete CompletableFuture
3719		*/
3720		public void testNewIncompleteFuture() {
3721	+	for (Integer v1 : new Integer[] { 1, null })
3722	+	{
3723		CompletableFuture<Integer> f = new CompletableFuture<>();
3724		CompletableFuture<Integer> g = f.newIncompleteFuture();
3725		checkIncomplete(f);
3726		checkIncomplete(g);
3727	<	}
3727	>	f.complete(v1);
3728	>	checkCompletedNormally(f, v1);
3729	>	checkIncomplete(g);
3730	>	g.complete(v1);
3731	>	checkCompletedNormally(g, v1);
3732	>	assertSame(g.getClass(), CompletableFuture.class);
3733	>	}}
3734
3735		/**
3736		* completedStage returns a completed CompletionStage
3737		*/
3738		public void testCompletedStage() {
3739	<	AtomicInteger x = new AtomicInteger();
3740	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3739	>	AtomicInteger x = new AtomicInteger(0);
3740	>	AtomicReference<Throwable> r = new AtomicReference<>();
3741		CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3742		f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3743		assertEquals(x.get(), 1);
#	Line 3404 | Line 3765 | public class CompletableFutureTest exten
3765		public void testFailedFuture() {
3766		CFException ex = new CFException();
3767		CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3768	<	checkCompletedExceptionallyWithRootCause(f, ex);
3768	>	checkCompletedExceptionally(f, ex);
3769		}
3770
3771		/**
3772		* failedFuture(null) throws NPE
3773		*/
3774	<	public void testFailedFuture2() {
3774	>	public void testFailedFuture_null() {
3775		try {
3776		CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3777		shouldThrow();
#	Line 3421 | Line 3782 | public class CompletableFutureTest exten
3782		* copy returns a CompletableFuture that is completed normally,
3783		* with the same value, when source is.
3784		*/
3785	<	public void testCopy() {
3785	>	public void testCopy_normalCompletion() {
3786	>	for (boolean createIncomplete : new boolean[] { true, false })
3787	>	for (Integer v1 : new Integer[] { 1, null })
3788	>	{
3789		CompletableFuture<Integer> f = new CompletableFuture<>();
3790	+	if (!createIncomplete) assertTrue(f.complete(v1));
3791		CompletableFuture<Integer> g = f.copy();
3792	<	checkIncomplete(f);
3793	<	checkIncomplete(g);
3794	<	f.complete(1);
3795	<	checkCompletedNormally(f, 1);
3796	<	checkCompletedNormally(g, 1);
3797	<	}
3792	>	if (createIncomplete) {
3793	>	checkIncomplete(f);
3794	>	checkIncomplete(g);
3795	>	assertTrue(f.complete(v1));
3796	>	}
3797	>	checkCompletedNormally(f, v1);
3798	>	checkCompletedNormally(g, v1);
3799	>	}}
3800
3801		/**
3802		* copy returns a CompletableFuture that is completed exceptionally
3803		* when source is.
3804		*/
3805	<	public void testCopy2() {
3805	>	public void testCopy_exceptionalCompletion() {
3806	>	for (boolean createIncomplete : new boolean[] { true, false })
3807	>	{
3808	>	CFException ex = new CFException();
3809		CompletableFuture<Integer> f = new CompletableFuture<>();
3810	+	if (!createIncomplete) f.completeExceptionally(ex);
3811		CompletableFuture<Integer> g = f.copy();
3812	<	checkIncomplete(f);
3813	<	checkIncomplete(g);
3814	<	CFException ex = new CFException();
3815	<	f.completeExceptionally(ex);
3812	>	if (createIncomplete) {
3813	>	checkIncomplete(f);
3814	>	checkIncomplete(g);
3815	>	f.completeExceptionally(ex);
3816	>	}
3817		checkCompletedExceptionally(f, ex);
3818	<	checkCompletedWithWrappedCFException(g);
3818	>	checkCompletedWithWrappedException(g, ex);
3819	>	}}
3820	>
3821	>	/**
3822	>	* Completion of a copy does not complete its source.
3823	>	*/
3824	>	public void testCopy_oneWayPropagation() {
3825	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3826	>	assertTrue(f.copy().complete(1));
3827	>	assertTrue(f.copy().complete(null));
3828	>	assertTrue(f.copy().cancel(true));
3829	>	assertTrue(f.copy().cancel(false));
3830	>	assertTrue(f.copy().completeExceptionally(new CFException()));
3831	>	checkIncomplete(f);
3832		}
3833
3834		/**
#	Line 3453 | Line 3838 | public class CompletableFutureTest exten
3838		public void testMinimalCompletionStage() {
3839		CompletableFuture<Integer> f = new CompletableFuture<>();
3840		CompletionStage<Integer> g = f.minimalCompletionStage();
3841	<	AtomicInteger x = new AtomicInteger();
3842	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3841	>	AtomicInteger x = new AtomicInteger(0);
3842	>	AtomicReference<Throwable> r = new AtomicReference<>();
3843		checkIncomplete(f);
3844		g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3845		f.complete(1);
#	Line 3470 | Line 3855 | public class CompletableFutureTest exten
3855		public void testMinimalCompletionStage2() {
3856		CompletableFuture<Integer> f = new CompletableFuture<>();
3857		CompletionStage<Integer> g = f.minimalCompletionStage();
3858	<	AtomicInteger x = new AtomicInteger();
3859	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3858	>	AtomicInteger x = new AtomicInteger(0);
3859	>	AtomicReference<Throwable> r = new AtomicReference<>();
3860		g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3861		checkIncomplete(f);
3862		CFException ex = new CFException();
#	Line 3488 | Line 3873 | public class CompletableFutureTest exten
3873		public void testFailedStage() {
3874		CFException ex = new CFException();
3875		CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3876	<	AtomicInteger x = new AtomicInteger();
3877	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3876	>	AtomicInteger x = new AtomicInteger(0);
3877	>	AtomicReference<Throwable> r = new AtomicReference<>();
3878		f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3879		assertEquals(x.get(), 0);
3880	<	assertEquals(r.get().getCause(), ex);
3880	>	assertEquals(r.get(), ex);
3881		}
3882
3883		/**
3884		* completeAsync completes with value of given supplier
3885		*/
3886		public void testCompleteAsync() {
3887	+	for (Integer v1 : new Integer[] { 1, null })
3888	+	{
3889		CompletableFuture<Integer> f = new CompletableFuture<>();
3890	<	f.completeAsync(() -> 1);
3890	>	f.completeAsync(() -> v1);
3891		f.join();
3892	<	checkCompletedNormally(f, 1);
3893	<	}
3892	>	checkCompletedNormally(f, v1);
3893	>	}}
3894
3895		/**
3896		* completeAsync completes exceptionally if given supplier throws
#	Line 3511 | Line 3898 | public class CompletableFutureTest exten
3898		public void testCompleteAsync2() {
3899		CompletableFuture<Integer> f = new CompletableFuture<>();
3900		CFException ex = new CFException();
3901	<	f.completeAsync(() -> {if (true) throw ex; return 1;});
3901	>	f.completeAsync(() -> { throw ex; });
3902		try {
3903		f.join();
3904		shouldThrow();
3905	<	} catch (Exception success) {}
3906	<	checkCompletedWithWrappedCFException(f);
3905	>	} catch (CompletionException success) {}
3906	>	checkCompletedWithWrappedException(f, ex);
3907		}
3908
3909		/**
3910		* completeAsync with given executor completes with value of given supplier
3911		*/
3912		public void testCompleteAsync3() {
3913	+	for (Integer v1 : new Integer[] { 1, null })
3914	+	{
3915		CompletableFuture<Integer> f = new CompletableFuture<>();
3916	<	f.completeAsync(() -> 1, new ThreadExecutor());
3917	<	f.join();
3918	<	checkCompletedNormally(f, 1);
3919	<	}
3916	>	ThreadExecutor executor = new ThreadExecutor();
3917	>	f.completeAsync(() -> v1, executor);
3918	>	assertSame(v1, f.join());
3919	>	checkCompletedNormally(f, v1);
3920	>	assertEquals(1, executor.count.get());
3921	>	}}
3922
3923		/**
3924		* completeAsync with given executor completes exceptionally if
#	Line 3536 | Line 3927 | public class CompletableFutureTest exten
3927		public void testCompleteAsync4() {
3928		CompletableFuture<Integer> f = new CompletableFuture<>();
3929		CFException ex = new CFException();
3930	<	f.completeAsync(() -> {if (true) throw ex; return 1;}, new ThreadExecutor());
3930	>	ThreadExecutor executor = new ThreadExecutor();
3931	>	f.completeAsync(() -> { throw ex; }, executor);
3932		try {
3933		f.join();
3934		shouldThrow();
3935	<	} catch (Exception success) {}
3936	<	checkCompletedWithWrappedCFException(f);
3935	>	} catch (CompletionException success) {}
3936	>	checkCompletedWithWrappedException(f, ex);
3937	>	assertEquals(1, executor.count.get());
3938		}
3939
3940		/**
3941		* orTimeout completes with TimeoutException if not complete
3942		*/
3943	<	public void testOrTimeout() {
3943	>	public void testOrTimeout_timesOut() {
3944	>	long timeoutMillis = timeoutMillis();
3945		CompletableFuture<Integer> f = new CompletableFuture<>();
3946	<	f.orTimeout(SHORT_DELAY_MS, MILLISECONDS);
3947	<	checkCompletedExceptionallyWithTimeout(f);
3946	>	long startTime = System.nanoTime();
3947	>	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3948	>	checkCompletedWithTimeoutException(f);
3949	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3950		}
3951
3952		/**
3953		* orTimeout completes normally if completed before timeout
3954		*/
3955	<	public void testOrTimeout2() {
3955	>	public void testOrTimeout_completed() {
3956	>	for (Integer v1 : new Integer[] { 1, null })
3957	>	{
3958		CompletableFuture<Integer> f = new CompletableFuture<>();
3959	<	f.complete(1);
3960	<	f.orTimeout(SHORT_DELAY_MS, MILLISECONDS);
3961	<	checkCompletedNormally(f, 1);
3962	<	}
3959	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3960	>	long startTime = System.nanoTime();
3961	>	f.complete(v1);
3962	>	assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3963	>	assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3964	>	g.complete(v1);
3965	>	checkCompletedNormally(f, v1);
3966	>	checkCompletedNormally(g, v1);
3967	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3968	>	}}
3969
3970		/**
3971		* completeOnTimeout completes with given value if not complete
3972		*/
3973	<	public void testCompleteOnTimeout() {
3974	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3975	<	f.completeOnTimeout(-1, SHORT_DELAY_MS, MILLISECONDS);
3572	<	f.join();
3573	<	checkCompletedNormally(f, -1);
3973	>	public void testCompleteOnTimeout_timesOut() {
3974	>	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3975	>	() -> testCompleteOnTimeout_timesOut(null));
3976		}
3977
3978		/**
3979	<	* completeOnTimeout has no effect if completed within timeout
3979	>	* completeOnTimeout completes with given value if not complete
3980		*/
3981	<	public void testCompleteOnTimeout2() {
3981	>	public void testCompleteOnTimeout_timesOut(Integer v) {
3982	>	long timeoutMillis = timeoutMillis();
3983		CompletableFuture<Integer> f = new CompletableFuture<>();
3984	<	f.complete(1);
3985	<	f.completeOnTimeout(-1, SHORT_DELAY_MS, MILLISECONDS);
3986	<	checkCompletedNormally(f, 1);
3984	>	long startTime = System.nanoTime();
3985	>	assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS));
3986	>	assertSame(v, f.join());
3987	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3988	>	f.complete(99);         // should have no effect
3989	>	checkCompletedNormally(f, v);
3990		}
3991
3992		/**
3993	<	* delayedExecutor returns an executor that delays submission
3993	>	* completeOnTimeout has no effect if completed within timeout
3994		*/
3995	<	public void testDelayedExecutor() throws Exception {
3996	<	long timeoutMillis = SMALL_DELAY_MS;
3997	<	Executor d = CompletableFuture.delayedExecutor(timeoutMillis,
3998	<	MILLISECONDS);
3995	>	public void testCompleteOnTimeout_completed() {
3996	>	for (Integer v1 : new Integer[] { 1, null })
3997	>	{
3998	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3999	>	CompletableFuture<Integer> g = new CompletableFuture<>();
4000		long startTime = System.nanoTime();
4001	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(() -> 1, d);
4002	<	assertNull(f.getNow(null));
4003	<	assertEquals(1, (int) f.get(LONG_DELAY_MS, MILLISECONDS));
4004	<	assertTrue(millisElapsedSince(startTime) > timeoutMillis/2);
4005	<	checkCompletedNormally(f, 1);
4006	<	}
4001	>	f.complete(v1);
4002	>	assertSame(f, f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
4003	>	assertSame(g, g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
4004	>	g.complete(v1);
4005	>	checkCompletedNormally(f, v1);
4006	>	checkCompletedNormally(g, v1);
4007	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
4008	>	}}
4009
4010		/**
4011	<	* delayedExecutor for a given executor returns an executor that
3603	<	* delays submission
4011	>	* delayedExecutor returns an executor that delays submission
4012		*/
4013	<	public void testDelayedExecutor2() throws Exception {
4014	<	long timeoutMillis = SMALL_DELAY_MS;
4015	<	Executor d = CompletableFuture.delayedExecutor(timeoutMillis,
4016	<	MILLISECONDS,
4017	<	new ThreadExecutor());
4013	>	public void testDelayedExecutor() {
4014	>	testInParallel(() -> testDelayedExecutor(null, null),
4015	>	() -> testDelayedExecutor(null, 1),
4016	>	() -> testDelayedExecutor(new ThreadExecutor(), 1),
4017	>	() -> testDelayedExecutor(new ThreadExecutor(), 1));
4018	>	}
4019	>
4020	>	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
4021	>	long timeoutMillis = timeoutMillis();
4022	>	// Use an "unreasonably long" long timeout to catch lingering threads
4023	>	long longTimeoutMillis = 1000 * 60 * 60 * 24;
4024	>	final Executor delayer, longDelayer;
4025	>	if (executor == null) {
4026	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
4027	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
4028	>	} else {
4029	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
4030	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
4031	>	}
4032		long startTime = System.nanoTime();
4033	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(() -> 1, d);
4034	<	assertNull(f.getNow(null));
4035	<	assertEquals(1, (int) f.get(LONG_DELAY_MS, MILLISECONDS));
4036	<	assertTrue(millisElapsedSince(startTime) > timeoutMillis/2);
4037	<	checkCompletedNormally(f, 1);
4033	>	CompletableFuture<Integer> f =
4034	>	CompletableFuture.supplyAsync(() -> v, delayer);
4035	>	CompletableFuture<Integer> g =
4036	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
4037	>
4038	>	assertNull(g.getNow(null));
4039	>
4040	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
4041	>	long millisElapsed = millisElapsedSince(startTime);
4042	>	assertTrue(millisElapsed >= timeoutMillis);
4043	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
4044	>
4045	>	checkCompletedNormally(f, v);
4046	>
4047	>	checkIncomplete(g);
4048	>	assertTrue(g.cancel(true));
4049		}
4050
4051		//--- tests of implementation details; not part of official tck ---
4052
4053		Object resultOf(CompletableFuture<?> f) {
4054	+	SecurityManager sm = System.getSecurityManager();
4055	+	if (sm != null) {
4056	+	try {
4057	+	System.setSecurityManager(null);
4058	+	} catch (SecurityException giveUp) {
4059	+	return "Reflection not available";
4060	+	}
4061	+	}
4062	+
4063		try {
4064		java.lang.reflect.Field resultField
4065		= CompletableFuture.class.getDeclaredField("result");
4066		resultField.setAccessible(true);
4067		return resultField.get(f);
4068	<	} catch (Throwable t) { throw new AssertionError(t); }
4068	>	} catch (Throwable t) {
4069	>	throw new AssertionError(t);
4070	>	} finally {
4071	>	if (sm != null) System.setSecurityManager(sm);
4072	>	}
4073		}
4074
4075		public void testExceptionPropagationReusesResultObject() {
#	Line 3634 | Line 4080 | public class CompletableFutureTest exten
4080		final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
4081		final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4082
4083	+	final Runnable noopRunnable = new Noop(m);
4084	+	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
4085	+	final Function<Integer, Integer> incFunction = new IncFunction(m);
4086	+
4087		List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
4088		= new ArrayList<>();
4089
4090	<	funs.add((y) -> m.thenRun(y, new Noop(m)));
4091	<	funs.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
4092	<	funs.add((y) -> m.thenApply(y, new IncFunction(m)));
4093	<
4094	<	funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
4095	<	funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
4096	<	funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
4097	<
4098	<	funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
4099	<	funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4100	<	funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
4101	<
4102	<	funs.add((y) -> m.whenComplete(y, (Integer x, Throwable t) -> {}));
4103	<
4104	<	funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
4105	<
4106	<	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
4107	<	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
4090	>	funs.add(y -> m.thenRun(y, noopRunnable));
4091	>	funs.add(y -> m.thenAccept(y, noopConsumer));
4092	>	funs.add(y -> m.thenApply(y, incFunction));
4093	>
4094	>	funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable));
4095	>	funs.add(y -> m.acceptEither(y, incomplete, noopConsumer));
4096	>	funs.add(y -> m.applyToEither(y, incomplete, incFunction));
4097	>
4098	>	funs.add(y -> m.runAfterBoth(y, v42, noopRunnable));
4099	>	funs.add(y -> m.runAfterBoth(v42, y, noopRunnable));
4100	>	funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4101	>	funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
4102	>	funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m)));
4103	>	funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m)));
4104	>
4105	>	funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
4106	>
4107	>	funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m)));
4108	>
4109	>	funs.add(y -> CompletableFuture.allOf(y));
4110	>	funs.add(y -> CompletableFuture.allOf(y, v42));
4111	>	funs.add(y -> CompletableFuture.allOf(v42, y));
4112	>	funs.add(y -> CompletableFuture.anyOf(y));
4113	>	funs.add(y -> CompletableFuture.anyOf(y, incomplete));
4114	>	funs.add(y -> CompletableFuture.anyOf(incomplete, y));
4115
4116		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4117		fun : funs) {
4118		CompletableFuture<Integer> f = new CompletableFuture<>();
4119		f.completeExceptionally(ex);
4120	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4120	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4121		checkCompletedWithWrappedException(src, ex);
4122		CompletableFuture<?> dep = fun.apply(src);
4123		checkCompletedWithWrappedException(dep, ex);
#	Line 3670 | Line 4127 | public class CompletableFutureTest exten
4127		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4128		fun : funs) {
4129		CompletableFuture<Integer> f = new CompletableFuture<>();
4130	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4130	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4131		CompletableFuture<?> dep = fun.apply(src);
4132		f.completeExceptionally(ex);
4133		checkCompletedWithWrappedException(src, ex);
#	Line 3684 | Line 4141 | public class CompletableFutureTest exten
4141		CompletableFuture<Integer> f = new CompletableFuture<>();
4142		f.cancel(mayInterruptIfRunning);
4143		checkCancelled(f);
4144	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4144	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4145		checkCompletedWithWrappedCancellationException(src);
4146		CompletableFuture<?> dep = fun.apply(src);
4147		checkCompletedWithWrappedCancellationException(dep);
#	Line 3695 | Line 4152 | public class CompletableFutureTest exten
4152		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4153		fun : funs) {
4154		CompletableFuture<Integer> f = new CompletableFuture<>();
4155	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4155	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4156		CompletableFuture<?> dep = fun.apply(src);
4157		f.cancel(mayInterruptIfRunning);
4158		checkCancelled(f);
#	Line 3705 | Line 4162 | public class CompletableFutureTest exten
4162		}
4163		}}
4164
4165	+	/**
4166	+	* Minimal completion stages throw UOE for most non-CompletionStage methods
4167	+	*/
4168	+	public void testMinimalCompletionStage_minimality() {
4169	+	if (!testImplementationDetails) return;
4170	+	Function<Method, String> toSignature =
4171	+	method -> method.getName() + Arrays.toString(method.getParameterTypes());
4172	+	Predicate<Method> isNotStatic =
4173	+	method -> (method.getModifiers() & Modifier.STATIC) == 0;
4174	+	List<Method> minimalMethods =
4175	+	Stream.of(Object.class, CompletionStage.class)
4176	+	.flatMap(klazz -> Stream.of(klazz.getMethods()))
4177	+	.filter(isNotStatic)
4178	+	.collect(Collectors.toList());
4179	+	// Methods from CompletableFuture permitted NOT to throw UOE
4180	+	String[] signatureWhitelist = {
4181	+	"newIncompleteFuture[]",
4182	+	"defaultExecutor[]",
4183	+	"minimalCompletionStage[]",
4184	+	"copy[]",
4185	+	};
4186	+	Set<String> permittedMethodSignatures =
4187	+	Stream.concat(minimalMethods.stream().map(toSignature),
4188	+	Stream.of(signatureWhitelist))
4189	+	.collect(Collectors.toSet());
4190	+	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
4191	+	.filter(isNotStatic)
4192	+	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4193	+	.collect(Collectors.toList());
4194	+
4195	+	List<CompletionStage<Integer>> stages = new ArrayList<>();
4196	+	CompletionStage<Integer> min =
4197	+	new CompletableFuture<Integer>().minimalCompletionStage();
4198	+	stages.add(min);
4199	+	stages.add(min.thenApply(x -> x));
4200	+	stages.add(CompletableFuture.completedStage(1));
4201	+	stages.add(CompletableFuture.failedStage(new CFException()));
4202	+
4203	+	List<Method> bugs = new ArrayList<>();
4204	+	for (Method method : allMethods) {
4205	+	Class<?>[] parameterTypes = method.getParameterTypes();
4206	+	Object[] args = new Object[parameterTypes.length];
4207	+	// Manufacture boxed primitives for primitive params
4208	+	for (int i = 0; i < args.length; i++) {
4209	+	Class<?> type = parameterTypes[i];
4210	+	if (parameterTypes[i] == boolean.class)
4211	+	args[i] = false;
4212	+	else if (parameterTypes[i] == int.class)
4213	+	args[i] = 0;
4214	+	else if (parameterTypes[i] == long.class)
4215	+	args[i] = 0L;
4216	+	}
4217	+	for (CompletionStage<Integer> stage : stages) {
4218	+	try {
4219	+	method.invoke(stage, args);
4220	+	bugs.add(method);
4221	+	}
4222	+	catch (java.lang.reflect.InvocationTargetException expected) {
4223	+	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4224	+	bugs.add(method);
4225	+	// expected.getCause().printStackTrace();
4226	+	}
4227	+	}
4228	+	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4229	+	}
4230	+	}
4231	+	if (!bugs.isEmpty())
4232	+	throw new Error("Methods did not throw UOE: " + bugs);
4233	+	}
4234	+
4235	+	/**
4236	+	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4237	+	* is completed normally, with the same value, when source is.
4238	+	*/
4239	+	public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() {
4240	+	for (boolean createIncomplete : new boolean[] { true, false })
4241	+	for (Integer v1 : new Integer[] { 1, null })
4242	+	{
4243	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4244	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4245	+	if (!createIncomplete) assertTrue(f.complete(v1));
4246	+	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4247	+	if (createIncomplete) {
4248	+	checkIncomplete(f);
4249	+	checkIncomplete(g);
4250	+	assertTrue(f.complete(v1));
4251	+	}
4252	+	checkCompletedNormally(f, v1);
4253	+	checkCompletedNormally(g, v1);
4254	+	}}
4255	+
4256	+	/**
4257	+	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4258	+	* is completed exceptionally when source is.
4259	+	*/
4260	+	public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() {
4261	+	for (boolean createIncomplete : new boolean[] { true, false })
4262	+	{
4263	+	CFException ex = new CFException();
4264	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4265	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4266	+	if (!createIncomplete) f.completeExceptionally(ex);
4267	+	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4268	+	if (createIncomplete) {
4269	+	checkIncomplete(f);
4270	+	checkIncomplete(g);
4271	+	f.completeExceptionally(ex);
4272	+	}
4273	+	checkCompletedExceptionally(f, ex);
4274	+	checkCompletedWithWrappedException(g, ex);
4275	+	}}
4276	+
4277	+	/**
4278	+	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4279	+	*/
4280	+	public void testMinimalCompletionStage_toCompletableFuture_mutable() {
4281	+	for (Integer v1 : new Integer[] { 1, null })
4282	+	{
4283	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4284	+	CompletionStage minimal = f.minimalCompletionStage();
4285	+	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4286	+	assertTrue(g.complete(v1));
4287	+	checkCompletedNormally(g, v1);
4288	+	checkIncomplete(f);
4289	+	checkIncomplete(minimal.toCompletableFuture());
4290	+	}}
4291	+
4292	+	/**
4293	+	* minimalStage.toCompletableFuture().join() awaits completion
4294	+	*/
4295	+	public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception {
4296	+	for (boolean createIncomplete : new boolean[] { true, false })
4297	+	for (Integer v1 : new Integer[] { 1, null })
4298	+	{
4299	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4300	+	if (!createIncomplete) assertTrue(f.complete(v1));
4301	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4302	+	if (createIncomplete) assertTrue(f.complete(v1));
4303	+	assertEquals(v1, minimal.toCompletableFuture().join());
4304	+	assertEquals(v1, minimal.toCompletableFuture().get());
4305	+	checkCompletedNormally(minimal.toCompletableFuture(), v1);
4306	+	}}
4307	+
4308	+	/**
4309	+	* Completion of a toCompletableFuture copy of a minimal stage
4310	+	* does not complete its source.
4311	+	*/
4312	+	public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() {
4313	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4314	+	CompletionStage<Integer> g = f.minimalCompletionStage();
4315	+	assertTrue(g.toCompletableFuture().complete(1));
4316	+	assertTrue(g.toCompletableFuture().complete(null));
4317	+	assertTrue(g.toCompletableFuture().cancel(true));
4318	+	assertTrue(g.toCompletableFuture().cancel(false));
4319	+	assertTrue(g.toCompletableFuture().completeExceptionally(new CFException()));
4320	+	checkIncomplete(g.toCompletableFuture());
4321	+	f.complete(1);
4322	+	checkCompletedNormally(g.toCompletableFuture(), 1);
4323	+	}
4324	+
4325	+	/** Demo utility method for external reliable toCompletableFuture */
4326	+	static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) {
4327	+	CompletableFuture<T> f = new CompletableFuture<>();
4328	+	stage.handle((T t, Throwable ex) -> {
4329	+	if (ex != null) f.completeExceptionally(ex);
4330	+	else f.complete(t);
4331	+	return null;
4332	+	});
4333	+	return f;
4334	+	}
4335	+
4336	+	/** Demo utility method to join a CompletionStage */
4337	+	static <T> T join(CompletionStage<T> stage) {
4338	+	return toCompletableFuture(stage).join();
4339	+	}
4340	+
4341	+	/**
4342	+	* Joining a minimal stage "by hand" works
4343	+	*/
4344	+	public void testMinimalCompletionStage_join_by_hand() {
4345	+	for (boolean createIncomplete : new boolean[] { true, false })
4346	+	for (Integer v1 : new Integer[] { 1, null })
4347	+	{
4348	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4349	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4350	+	CompletableFuture<Integer> g = new CompletableFuture<>();
4351	+	if (!createIncomplete) assertTrue(f.complete(v1));
4352	+	minimal.thenAccept(x -> g.complete(x));
4353	+	if (createIncomplete) assertTrue(f.complete(v1));
4354	+	g.join();
4355	+	checkCompletedNormally(g, v1);
4356	+	checkCompletedNormally(f, v1);
4357	+	assertEquals(v1, join(minimal));
4358	+	}}
4359	+
4360	+	static class Monad {
4361	+	static class ZeroException extends RuntimeException {
4362	+	public ZeroException() { super("monadic zero"); }
4363	+	}
4364	+	// "return", "unit"
4365	+	static <T> CompletableFuture<T> unit(T value) {
4366	+	return completedFuture(value);
4367	+	}
4368	+	// monadic zero ?
4369	+	static <T> CompletableFuture<T> zero() {
4370	+	return failedFuture(new ZeroException());
4371	+	}
4372	+	// >=>
4373	+	static <T,U,V> Function<T, CompletableFuture<V>> compose
4374	+	(Function<T, CompletableFuture<U>> f,
4375	+	Function<U, CompletableFuture<V>> g) {
4376	+	return x -> f.apply(x).thenCompose(g);
4377	+	}
4378	+
4379	+	static void assertZero(CompletableFuture<?> f) {
4380	+	try {
4381	+	f.getNow(null);
4382	+	throw new AssertionError("should throw");
4383	+	} catch (CompletionException success) {
4384	+	assertTrue(success.getCause() instanceof ZeroException);
4385	+	}
4386	+	}
4387	+
4388	+	static <T> void assertFutureEquals(CompletableFuture<T> f,
4389	+	CompletableFuture<T> g) {
4390	+	T fval = null, gval = null;
4391	+	Throwable fex = null, gex = null;
4392	+
4393	+	try { fval = f.get(); }
4394	+	catch (ExecutionException ex) { fex = ex.getCause(); }
4395	+	catch (Throwable ex) { fex = ex; }
4396	+
4397	+	try { gval = g.get(); }
4398	+	catch (ExecutionException ex) { gex = ex.getCause(); }
4399	+	catch (Throwable ex) { gex = ex; }
4400	+
4401	+	if (fex != null || gex != null)
4402	+	assertSame(fex.getClass(), gex.getClass());
4403	+	else
4404	+	assertEquals(fval, gval);
4405	+	}
4406	+
4407	+	static class PlusFuture<T> extends CompletableFuture<T> {
4408	+	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4409	+	}
4410	+
4411	+	/** Implements "monadic plus". */
4412	+	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
4413	+	CompletableFuture<? extends T> g) {
4414	+	PlusFuture<T> plus = new PlusFuture<T>();
4415	+	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
4416	+	try {
4417	+	if (ex == null) {
4418	+	if (plus.complete(result))
4419	+	if (plus.firstFailure.get() != null)
4420	+	plus.firstFailure.set(null);
4421	+	}
4422	+	else if (plus.firstFailure.compareAndSet(null, ex)) {
4423	+	if (plus.isDone())
4424	+	plus.firstFailure.set(null);
4425	+	}
4426	+	else {
4427	+	// first failure has precedence
4428	+	Throwable first = plus.firstFailure.getAndSet(null);
4429	+
4430	+	// may fail with "Self-suppression not permitted"
4431	+	try { first.addSuppressed(ex); }
4432	+	catch (Exception ignored) {}
4433	+
4434	+	plus.completeExceptionally(first);
4435	+	}
4436	+	} catch (Throwable unexpected) {
4437	+	plus.completeExceptionally(unexpected);
4438	+	}
4439	+	};
4440	+	f.whenComplete(action);
4441	+	g.whenComplete(action);
4442	+	return plus;
4443	+	}
4444	+	}
4445	+
4446	+	/**
4447	+	* CompletableFuture is an additive monad - sort of.
4448	+	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
4449	+	*/
4450	+	public void testAdditiveMonad() throws Throwable {
4451	+	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
4452	+	CompletableFuture<Long> zero = Monad.zero();
4453	+
4454	+	// Some mutually non-commutative functions
4455	+	Function<Long, CompletableFuture<Long>> triple
4456	+	= x -> Monad.unit(3 * x);
4457	+	Function<Long, CompletableFuture<Long>> inc
4458	+	= x -> Monad.unit(x + 1);
4459	+
4460	+	// unit is a right identity: m >>= unit === m
4461	+	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
4462	+	inc.apply(5L));
4463	+	// unit is a left identity: (unit x) >>= f === f x
4464	+	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
4465	+	inc.apply(5L));
4466	+
4467	+	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4468	+	Monad.assertFutureEquals(
4469	+	unit.apply(5L).thenCompose(inc).thenCompose(triple),
4470	+	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4471	+
4472	+	// The case for CompletableFuture as an additive monad is weaker...
4473	+
4474	+	// zero is a monadic zero
4475	+	Monad.assertZero(zero);
4476	+
4477	+	// left zero: zero >>= f === zero
4478	+	Monad.assertZero(zero.thenCompose(inc));
4479	+	// right zero: f >>= (\x -> zero) === zero
4480	+	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4481	+
4482	+	// f plus zero === f
4483	+	Monad.assertFutureEquals(Monad.unit(5L),
4484	+	Monad.plus(Monad.unit(5L), zero));
4485	+	// zero plus f === f
4486	+	Monad.assertFutureEquals(Monad.unit(5L),
4487	+	Monad.plus(zero, Monad.unit(5L)));
4488	+	// zero plus zero === zero
4489	+	Monad.assertZero(Monad.plus(zero, zero));
4490	+	{
4491	+	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
4492	+	Monad.unit(8L));
4493	+	// non-determinism
4494	+	assertTrue(f.get() == 5L || f.get() == 8L);
4495	+	}
4496	+
4497	+	CompletableFuture<Long> godot = new CompletableFuture<>();
4498	+	// f plus godot === f (doesn't wait for godot)
4499	+	Monad.assertFutureEquals(Monad.unit(5L),
4500	+	Monad.plus(Monad.unit(5L), godot));
4501	+	// godot plus f === f (doesn't wait for godot)
4502	+	Monad.assertFutureEquals(Monad.unit(5L),
4503	+	Monad.plus(godot, Monad.unit(5L)));
4504	+	}
4505	+
4506	+	/** Test long recursive chains of CompletableFutures with cascading completions */
4507	+	@SuppressWarnings("FutureReturnValueIgnored")
4508	+	public void testRecursiveChains() throws Throwable {
4509	+	for (ExecutionMode m : ExecutionMode.values())
4510	+	for (boolean addDeadEnds : new boolean[] { true, false })
4511	+	{
4512	+	final int val = 42;
4513	+	final int n = expensiveTests ? 1_000 : 2;
4514	+	CompletableFuture<Integer> head = new CompletableFuture<>();
4515	+	CompletableFuture<Integer> tail = head;
4516	+	for (int i = 0; i < n; i++) {
4517	+	if (addDeadEnds) m.thenApply(tail, v -> v + 1);
4518	+	tail = m.thenApply(tail, v -> v + 1);
4519	+	if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1);
4520	+	tail = m.applyToEither(tail, tail, v -> v + 1);
4521	+	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1);
4522	+	tail = m.thenCombine(tail, tail, (v, w) -> v + 1);
4523	+	}
4524	+	head.complete(val);
4525	+	assertEquals(val + 3 * n, (int) tail.join());
4526	+	}}
4527	+
4528	+	/**
4529	+	* A single CompletableFuture with many dependents.
4530	+	* A demo of scalability - runtime is O(n).
4531	+	*/
4532	+	@SuppressWarnings("FutureReturnValueIgnored")
4533	+	public void testManyDependents() throws Throwable {
4534	+	final int n = expensiveTests ? 1_000_000 : 10;
4535	+	final CompletableFuture<Void> head = new CompletableFuture<>();
4536	+	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4537	+	final AtomicInteger count = new AtomicInteger(0);
4538	+	for (int i = 0; i < n; i++) {
4539	+	head.thenRun(() -> count.getAndIncrement());
4540	+	head.thenAccept(x -> count.getAndIncrement());
4541	+	head.thenApply(x -> count.getAndIncrement());
4542	+
4543	+	head.runAfterBoth(complete, () -> count.getAndIncrement());
4544	+	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
4545	+	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
4546	+	complete.runAfterBoth(head, () -> count.getAndIncrement());
4547	+	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
4548	+	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4549	+
4550	+	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4551	+	head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4552	+	head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4553	+	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4554	+	new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement());
4555	+	new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement());
4556	+	}
4557	+	head.complete(null);
4558	+	assertEquals(5 * 3 * n, count.get());
4559	+	}
4560	+
4561	+	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4562	+	@SuppressWarnings("FutureReturnValueIgnored")
4563	+	public void testCoCompletionGarbageRetention() throws Throwable {
4564	+	final int n = expensiveTests ? 1_000_000 : 10;
4565	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4566	+	CompletableFuture<Integer> f;
4567	+	for (int i = 0; i < n; i++) {
4568	+	f = new CompletableFuture<>();
4569	+	f.runAfterEither(incomplete, () -> {});
4570	+	f.complete(null);
4571	+
4572	+	f = new CompletableFuture<>();
4573	+	f.acceptEither(incomplete, x -> {});
4574	+	f.complete(null);
4575	+
4576	+	f = new CompletableFuture<>();
4577	+	f.applyToEither(incomplete, x -> x);
4578	+	f.complete(null);
4579	+
4580	+	f = new CompletableFuture<>();
4581	+	CompletableFuture.anyOf(f, incomplete);
4582	+	f.complete(null);
4583	+	}
4584	+
4585	+	for (int i = 0; i < n; i++) {
4586	+	f = new CompletableFuture<>();
4587	+	incomplete.runAfterEither(f, () -> {});
4588	+	f.complete(null);
4589	+
4590	+	f = new CompletableFuture<>();
4591	+	incomplete.acceptEither(f, x -> {});
4592	+	f.complete(null);
4593	+
4594	+	f = new CompletableFuture<>();
4595	+	incomplete.applyToEither(f, x -> x);
4596	+	f.complete(null);
4597	+
4598	+	f = new CompletableFuture<>();
4599	+	CompletableFuture.anyOf(incomplete, f);
4600	+	f.complete(null);
4601	+	}
4602	+	}
4603	+
4604	+	/**
4605	+	* Reproduction recipe for:
4606	+	* 8160402: Garbage retention with CompletableFuture.anyOf
4607	+	* 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
4608	+	*/
4609	+	public void testAnyOfGarbageRetention() throws Throwable {
4610	+	for (Integer v : new Integer[] { 1, null })
4611	+	{
4612	+	final int n = expensiveTests ? 100_000 : 10;
4613	+	CompletableFuture<Integer>[] fs
4614	+	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4615	+	for (int i = 0; i < fs.length; i++)
4616	+	fs[i] = new CompletableFuture<>();
4617	+	fs[fs.length - 1].complete(v);
4618	+	for (int i = 0; i < n; i++)
4619	+	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4620	+	}}
4621	+
4622	+	/**
4623	+	* Checks for garbage retention with allOf.
4624	+	*
4625	+	* As of 2016-07, fails with OOME:
4626	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4627	+	*/
4628	+	public void testCancelledAllOfGarbageRetention() throws Throwable {
4629	+	final int n = expensiveTests ? 100_000 : 10;
4630	+	CompletableFuture<Integer>[] fs
4631	+	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4632	+	for (int i = 0; i < fs.length; i++)
4633	+	fs[i] = new CompletableFuture<>();
4634	+	for (int i = 0; i < n; i++)
4635	+	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4636	+	}
4637	+
4638	+	/**
4639	+	* Checks for garbage retention when a dependent future is
4640	+	* cancelled and garbage-collected.
4641	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4642	+	*
4643	+	* As of 2016-07, fails with OOME:
4644	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4645	+	*/
4646	+	public void testCancelledGarbageRetention() throws Throwable {
4647	+	final int n = expensiveTests ? 100_000 : 10;
4648	+	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4649	+	for (int i = 0; i < n; i++)
4650	+	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4651	+	}
4652	+
4653	+	/**
4654	+	* Checks for garbage retention when MinimalStage.toCompletableFuture()
4655	+	* is invoked many times.
4656	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4657	+	*
4658	+	* As of 2016-07, fails with OOME:
4659	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck
4660	+	*/
4661	+	public void testToCompletableFutureGarbageRetention() throws Throwable {
4662	+	final int n = expensiveTests ? 900_000 : 10;
4663	+	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4664	+	CompletionStage minimal = neverCompleted.minimalCompletionStage();
4665	+	for (int i = 0; i < n; i++)
4666	+	assertTrue(minimal.toCompletableFuture().cancel(true));
4667	+	}
4668	+
4669	+	//     static <U> U join(CompletionStage<U> stage) {
4670	+	//         CompletableFuture<U> f = new CompletableFuture<>();
4671	+	//         stage.whenComplete((v, ex) -> {
4672	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4673	+	//         });
4674	+	//         return f.join();
4675	+	//     }
4676	+
4677	+	//     static <U> boolean isDone(CompletionStage<U> stage) {
4678	+	//         CompletableFuture<U> f = new CompletableFuture<>();
4679	+	//         stage.whenComplete((v, ex) -> {
4680	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4681	+	//         });
4682	+	//         return f.isDone();
4683	+	//     }
4684	+
4685	+	//     static <U> U join2(CompletionStage<U> stage) {
4686	+	//         return stage.toCompletableFuture().copy().join();
4687	+	//     }
4688	+
4689	+	//     static <U> boolean isDone2(CompletionStage<U> stage) {
4690	+	//         return stage.toCompletableFuture().copy().isDone();
4691	+	//     }
4692	+
4693	+	// For testing default implementations
4694	+	// Only non-default interface methods defined.
4695	+	static final class DelegatedCompletionStage<T> implements CompletionStage<T> {
4696	+	final CompletableFuture<T> cf;
4697	+	DelegatedCompletionStage(CompletableFuture<T> cf) { this.cf = cf; }
4698	+	public CompletableFuture<T> toCompletableFuture() {
4699	+	return cf; }
4700	+	public CompletionStage<Void> thenRun
4701	+	(Runnable action) {
4702	+	return cf.thenRun(action); }
4703	+	public CompletionStage<Void> thenRunAsync
4704	+	(Runnable action) {
4705	+	return cf.thenRunAsync(action); }
4706	+	public CompletionStage<Void> thenRunAsync
4707	+	(Runnable action,
4708	+	Executor executor) {
4709	+	return cf.thenRunAsync(action, executor); }
4710	+	public CompletionStage<Void> thenAccept
4711	+	(Consumer<? super T> action) {
4712	+	return cf.thenAccept(action); }
4713	+	public CompletionStage<Void> thenAcceptAsync
4714	+	(Consumer<? super T> action) {
4715	+	return cf.thenAcceptAsync(action); }
4716	+	public CompletionStage<Void> thenAcceptAsync
4717	+	(Consumer<? super T> action,
4718	+	Executor executor) {
4719	+	return cf.thenAcceptAsync(action, executor); }
4720	+	public <U> CompletionStage<U> thenApply
4721	+	(Function<? super T,? extends U> a) {
4722	+	return cf.thenApply(a); }
4723	+	public <U> CompletionStage<U> thenApplyAsync
4724	+	(Function<? super T,? extends U> fn) {
4725	+	return cf.thenApplyAsync(fn); }
4726	+	public <U> CompletionStage<U> thenApplyAsync
4727	+	(Function<? super T,? extends U> fn,
4728	+	Executor executor) {
4729	+	return cf.thenApplyAsync(fn, executor); }
4730	+	public <U,V> CompletionStage<V> thenCombine
4731	+	(CompletionStage<? extends U> other,
4732	+	BiFunction<? super T,? super U,? extends V> fn) {
4733	+	return cf.thenCombine(other, fn); }
4734	+	public <U,V> CompletionStage<V> thenCombineAsync
4735	+	(CompletionStage<? extends U> other,
4736	+	BiFunction<? super T,? super U,? extends V> fn) {
4737	+	return cf.thenCombineAsync(other, fn); }
4738	+	public <U,V> CompletionStage<V> thenCombineAsync
4739	+	(CompletionStage<? extends U> other,
4740	+	BiFunction<? super T,? super U,? extends V> fn,
4741	+	Executor executor) {
4742	+	return cf.thenCombineAsync(other, fn, executor); }
4743	+	public <U> CompletionStage<Void> thenAcceptBoth
4744	+	(CompletionStage<? extends U> other,
4745	+	BiConsumer<? super T, ? super U> action) {
4746	+	return cf.thenAcceptBoth(other, action); }
4747	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4748	+	(CompletionStage<? extends U> other,
4749	+	BiConsumer<? super T, ? super U> action) {
4750	+	return cf.thenAcceptBothAsync(other, action); }
4751	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4752	+	(CompletionStage<? extends U> other,
4753	+	BiConsumer<? super T, ? super U> action,
4754	+	Executor executor) {
4755	+	return cf.thenAcceptBothAsync(other, action, executor); }
4756	+	public CompletionStage<Void> runAfterBoth
4757	+	(CompletionStage<?> other,
4758	+	Runnable action) {
4759	+	return cf.runAfterBoth(other, action); }
4760	+	public CompletionStage<Void> runAfterBothAsync
4761	+	(CompletionStage<?> other,
4762	+	Runnable action) {
4763	+	return cf.runAfterBothAsync(other, action); }
4764	+	public CompletionStage<Void> runAfterBothAsync
4765	+	(CompletionStage<?> other,
4766	+	Runnable action,
4767	+	Executor executor) {
4768	+	return cf.runAfterBothAsync(other, action, executor); }
4769	+	public <U> CompletionStage<U> applyToEither
4770	+	(CompletionStage<? extends T> other,
4771	+	Function<? super T, U> fn) {
4772	+	return cf.applyToEither(other, fn); }
4773	+	public <U> CompletionStage<U> applyToEitherAsync
4774	+	(CompletionStage<? extends T> other,
4775	+	Function<? super T, U> fn) {
4776	+	return cf.applyToEitherAsync(other, fn); }
4777	+	public <U> CompletionStage<U> applyToEitherAsync
4778	+	(CompletionStage<? extends T> other,
4779	+	Function<? super T, U> fn,
4780	+	Executor executor) {
4781	+	return cf.applyToEitherAsync(other, fn, executor); }
4782	+	public CompletionStage<Void> acceptEither
4783	+	(CompletionStage<? extends T> other,
4784	+	Consumer<? super T> action) {
4785	+	return cf.acceptEither(other, action); }
4786	+	public CompletionStage<Void> acceptEitherAsync
4787	+	(CompletionStage<? extends T> other,
4788	+	Consumer<? super T> action) {
4789	+	return cf.acceptEitherAsync(other, action); }
4790	+	public CompletionStage<Void> acceptEitherAsync
4791	+	(CompletionStage<? extends T> other,
4792	+	Consumer<? super T> action,
4793	+	Executor executor) {
4794	+	return cf.acceptEitherAsync(other, action, executor); }
4795	+	public CompletionStage<Void> runAfterEither
4796	+	(CompletionStage<?> other,
4797	+	Runnable action) {
4798	+	return cf.runAfterEither(other, action); }
4799	+	public CompletionStage<Void> runAfterEitherAsync
4800	+	(CompletionStage<?> other,
4801	+	Runnable action) {
4802	+	return cf.runAfterEitherAsync(other, action); }
4803	+	public CompletionStage<Void> runAfterEitherAsync
4804	+	(CompletionStage<?> other,
4805	+	Runnable action,
4806	+	Executor executor) {
4807	+	return cf.runAfterEitherAsync(other, action, executor); }
4808	+	public <U> CompletionStage<U> thenCompose
4809	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4810	+	return cf.thenCompose(fn); }
4811	+	public <U> CompletionStage<U> thenComposeAsync
4812	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4813	+	return cf.thenComposeAsync(fn); }
4814	+	public <U> CompletionStage<U> thenComposeAsync
4815	+	(Function<? super T, ? extends CompletionStage<U>> fn,
4816	+	Executor executor) {
4817	+	return cf.thenComposeAsync(fn, executor); }
4818	+	public <U> CompletionStage<U> handle
4819	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4820	+	return cf.handle(fn); }
4821	+	public <U> CompletionStage<U> handleAsync
4822	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4823	+	return cf.handleAsync(fn); }
4824	+	public <U> CompletionStage<U> handleAsync
4825	+	(BiFunction<? super T, Throwable, ? extends U> fn,
4826	+	Executor executor) {
4827	+	return cf.handleAsync(fn, executor); }
4828	+	public CompletionStage<T> whenComplete
4829	+	(BiConsumer<? super T, ? super Throwable> action) {
4830	+	return cf.whenComplete(action); }
4831	+	public CompletionStage<T> whenCompleteAsync
4832	+	(BiConsumer<? super T, ? super Throwable> action) {
4833	+	return cf.whenCompleteAsync(action); }
4834	+	public CompletionStage<T> whenCompleteAsync
4835	+	(BiConsumer<? super T, ? super Throwable> action,
4836	+	Executor executor) {
4837	+	return cf.whenCompleteAsync(action, executor); }
4838	+	public CompletionStage<T> exceptionally
4839	+	(Function<Throwable, ? extends T> fn) {
4840	+	return cf.exceptionally(fn); }
4841	+	}
4842	+
4843	+	/**
4844	+	* default-implemented exceptionallyAsync action is not invoked when
4845	+	* source completes normally, and source result is propagated
4846	+	*/
4847	+	public void testDefaultExceptionallyAsync_normalCompletion() {
4848	+	for (boolean createIncomplete : new boolean[] { true, false })
4849	+	for (Integer v1 : new Integer[] { 1, null })
4850	+	{
4851	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4852	+	final DelegatedCompletionStage<Integer> d =
4853	+	new DelegatedCompletionStage<Integer>(f);
4854	+	if (!createIncomplete) assertTrue(f.complete(v1));
4855	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4856	+	((Throwable t) -> {
4857	+	threadFail("should not be called");
4858	+	return null;            // unreached
4859	+	});
4860	+	if (createIncomplete) assertTrue(f.complete(v1));
4861	+
4862	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4863	+	}}
4864	+
4865	+	/**
4866	+	* default-implemented exceptionallyAsync action completes with
4867	+	* function value on source exception
4868	+	*/
4869	+	public void testDefaultExceptionallyAsync_exceptionalCompletion() {
4870	+	for (boolean createIncomplete : new boolean[] { true, false })
4871	+	for (Integer v1 : new Integer[] { 1, null })
4872	+	{
4873	+	final AtomicInteger a = new AtomicInteger(0);
4874	+	final CFException ex = new CFException();
4875	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4876	+	final DelegatedCompletionStage<Integer> d =
4877	+	new DelegatedCompletionStage<Integer>(f);
4878	+	if (!createIncomplete) f.completeExceptionally(ex);
4879	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4880	+	((Throwable t) -> {
4881	+	threadAssertSame(t, ex);
4882	+	a.getAndIncrement();
4883	+	return v1;
4884	+	});
4885	+	if (createIncomplete) f.completeExceptionally(ex);
4886	+
4887	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4888	+	assertEquals(1, a.get());
4889	+	}}
4890	+
4891	+	/**
4892	+	* Under default implementation, if an "exceptionally action"
4893	+	* throws an exception, it completes exceptionally with that
4894	+	* exception
4895	+	*/
4896	+	public void testDefaultExceptionallyAsync_exceptionalCompletionActionFailed() {
4897	+	for (boolean createIncomplete : new boolean[] { true, false })
4898	+	{
4899	+	final AtomicInteger a = new AtomicInteger(0);
4900	+	final CFException ex1 = new CFException();
4901	+	final CFException ex2 = new CFException();
4902	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4903	+	final DelegatedCompletionStage<Integer> d =
4904	+	new DelegatedCompletionStage<Integer>(f);
4905	+	if (!createIncomplete) f.completeExceptionally(ex1);
4906	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4907	+	((Throwable t) -> {
4908	+	threadAssertSame(t, ex1);
4909	+	a.getAndIncrement();
4910	+	throw ex2;
4911	+	});
4912	+	if (createIncomplete) f.completeExceptionally(ex1);
4913	+
4914	+	checkCompletedWithWrappedException(g.toCompletableFuture(), ex2);
4915	+	checkCompletedExceptionally(f, ex1);
4916	+	checkCompletedExceptionally(d.toCompletableFuture(), ex1);
4917	+	assertEquals(1, a.get());
4918	+	}}
4919	+
4920	+	/**
4921	+	* default exceptionallyCompose result completes normally after normal
4922	+	* completion of source
4923	+	*/
4924	+	public void testDefaultExceptionallyCompose_normalCompletion() {
4925	+	for (boolean createIncomplete : new boolean[] { true, false })
4926	+	for (Integer v1 : new Integer[] { 1, null })
4927	+	{
4928	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4929	+	final ExceptionalCompletableFutureFunction r =
4930	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4931	+	final DelegatedCompletionStage<Integer> d =
4932	+	new DelegatedCompletionStage<Integer>(f);
4933	+	if (!createIncomplete) assertTrue(f.complete(v1));
4934	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4935	+	if (createIncomplete) assertTrue(f.complete(v1));
4936	+
4937	+	checkCompletedNormally(f, v1);
4938	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4939	+	r.assertNotInvoked();
4940	+	}}
4941	+
4942	+	/**
4943	+	* default-implemented exceptionallyCompose result completes
4944	+	* normally after exceptional completion of source
4945	+	*/
4946	+	public void testDefaultExceptionallyCompose_exceptionalCompletion() {
4947	+	for (boolean createIncomplete : new boolean[] { true, false })
4948	+	{
4949	+	final CFException ex = new CFException();
4950	+	final ExceptionalCompletableFutureFunction r =
4951	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4952	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4953	+	final DelegatedCompletionStage<Integer> d =
4954	+	new DelegatedCompletionStage<Integer>(f);
4955	+	if (!createIncomplete) f.completeExceptionally(ex);
4956	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4957	+	if (createIncomplete) f.completeExceptionally(ex);
4958	+
4959	+	checkCompletedExceptionally(f, ex);
4960	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
4961	+	r.assertInvoked();
4962	+	}}
4963	+
4964	+	/**
4965	+	* default-implemented exceptionallyCompose completes
4966	+	* exceptionally on exception if action does
4967	+	*/
4968	+	public void testDefaultExceptionallyCompose_actionFailed() {
4969	+	for (boolean createIncomplete : new boolean[] { true, false })
4970	+	for (Integer v1 : new Integer[] { 1, null })
4971	+	{
4972	+	final CFException ex = new CFException();
4973	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4974	+	final FailingExceptionalCompletableFutureFunction r
4975	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4976	+	final DelegatedCompletionStage<Integer> d =
4977	+	new DelegatedCompletionStage<Integer>(f);
4978	+	if (!createIncomplete) f.completeExceptionally(ex);
4979	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4980	+	if (createIncomplete) f.completeExceptionally(ex);
4981	+
4982	+	checkCompletedExceptionally(f, ex);
4983	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4984	+	r.assertInvoked();
4985	+	}}
4986	+
4987	+	/**
4988	+	* default exceptionallyComposeAsync result completes normally after normal
4989	+	* completion of source
4990	+	*/
4991	+	public void testDefaultExceptionallyComposeAsync_normalCompletion() {
4992	+	for (boolean createIncomplete : new boolean[] { true, false })
4993	+	for (Integer v1 : new Integer[] { 1, null })
4994	+	{
4995	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4996	+	final ExceptionalCompletableFutureFunction r =
4997	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4998	+	final DelegatedCompletionStage<Integer> d =
4999	+	new DelegatedCompletionStage<Integer>(f);
5000	+	if (!createIncomplete) assertTrue(f.complete(v1));
5001	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5002	+	if (createIncomplete) assertTrue(f.complete(v1));
5003	+
5004	+	checkCompletedNormally(f, v1);
5005	+	checkCompletedNormally(g.toCompletableFuture(), v1);
5006	+	r.assertNotInvoked();
5007	+	}}
5008	+
5009	+	/**
5010	+	* default-implemented exceptionallyComposeAsync result completes
5011	+	* normally after exceptional completion of source
5012	+	*/
5013	+	public void testDefaultExceptionallyComposeAsync_exceptionalCompletion() {
5014	+	for (boolean createIncomplete : new boolean[] { true, false })
5015	+	{
5016	+	final CFException ex = new CFException();
5017	+	final ExceptionalCompletableFutureFunction r =
5018	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
5019	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5020	+	final DelegatedCompletionStage<Integer> d =
5021	+	new DelegatedCompletionStage<Integer>(f);
5022	+	if (!createIncomplete) f.completeExceptionally(ex);
5023	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5024	+	if (createIncomplete) f.completeExceptionally(ex);
5025	+
5026	+	checkCompletedExceptionally(f, ex);
5027	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5028	+	r.assertInvoked();
5029	+	}}
5030	+
5031	+	/**
5032	+	* default-implemented exceptionallyComposeAsync completes
5033	+	* exceptionally on exception if action does
5034	+	*/
5035	+	public void testDefaultExceptionallyComposeAsync_actionFailed() {
5036	+	for (boolean createIncomplete : new boolean[] { true, false })
5037	+	for (Integer v1 : new Integer[] { 1, null })
5038	+	{
5039	+	final CFException ex = new CFException();
5040	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5041	+	final FailingExceptionalCompletableFutureFunction r
5042	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
5043	+	final DelegatedCompletionStage<Integer> d =
5044	+	new DelegatedCompletionStage<Integer>(f);
5045	+	if (!createIncomplete) f.completeExceptionally(ex);
5046	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5047	+	if (createIncomplete) f.completeExceptionally(ex);
5048	+
5049	+	checkCompletedExceptionally(f, ex);
5050	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5051	+	r.assertInvoked();
5052	+	}}
5053	+
5054	+
5055	+	/**
5056	+	* default exceptionallyComposeAsync result completes normally after normal
5057	+	* completion of source
5058	+	*/
5059	+	public void testDefaultExceptionallyComposeAsyncExecutor_normalCompletion() {
5060	+	for (boolean createIncomplete : new boolean[] { true, false })
5061	+	for (Integer v1 : new Integer[] { 1, null })
5062	+	{
5063	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5064	+	final ExceptionalCompletableFutureFunction r =
5065	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5066	+	final DelegatedCompletionStage<Integer> d =
5067	+	new DelegatedCompletionStage<Integer>(f);
5068	+	if (!createIncomplete) assertTrue(f.complete(v1));
5069	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5070	+	if (createIncomplete) assertTrue(f.complete(v1));
5071	+
5072	+	checkCompletedNormally(f, v1);
5073	+	checkCompletedNormally(g.toCompletableFuture(), v1);
5074	+	r.assertNotInvoked();
5075	+	}}
5076	+
5077	+	/**
5078	+	* default-implemented exceptionallyComposeAsync result completes
5079	+	* normally after exceptional completion of source
5080	+	*/
5081	+	public void testDefaultExceptionallyComposeAsyncExecutor_exceptionalCompletion() {
5082	+	for (boolean createIncomplete : new boolean[] { true, false })
5083	+	{
5084	+	final CFException ex = new CFException();
5085	+	final ExceptionalCompletableFutureFunction r =
5086	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5087	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
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	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5096	+	r.assertInvoked();
5097	+	}}
5098	+
5099	+	/**
5100	+	* default-implemented exceptionallyComposeAsync completes
5101	+	* exceptionally on exception if action does
5102	+	*/
5103	+	public void testDefaultExceptionallyComposeAsyncExecutor_actionFailed() {
5104	+	for (boolean createIncomplete : new boolean[] { true, false })
5105	+	for (Integer v1 : new Integer[] { 1, null })
5106	+	{
5107	+	final CFException ex = new CFException();
5108	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5109	+	final FailingExceptionalCompletableFutureFunction r
5110	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5111	+	final DelegatedCompletionStage<Integer> d =
5112	+	new DelegatedCompletionStage<Integer>(f);
5113	+	if (!createIncomplete) f.completeExceptionally(ex);
5114	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5115	+	if (createIncomplete) f.completeExceptionally(ex);
5116	+
5117	+	checkCompletedExceptionally(f, ex);
5118	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5119	+	r.assertInvoked();
5120	+	}}
5121	+
5122		}

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