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root/jsr166/jsr166/src/test/tck/CompletableFutureTest.java

Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.109 by jsr166, Fri Sep 4 02:50:00 2015 UTC vs.
Revision 1.213 by jsr166, Mon Sep 24 17:13:37 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	+	checkCompletedNormally(f, v1);
3171	+	checkCompletedNormally(g, v1);
3172	+	r.assertNotInvoked();
3173	+	}}
3174	+
3175	+	/**
3176	+	* exceptionallyCompose result completes normally after exceptional
3177	+	* completion of source
3178	+	*/
3179	+	public void testExceptionallyCompose_exceptionalCompletion() {
3180	+	for (ExecutionMode m : ExecutionMode.values())
3181	+	for (boolean createIncomplete : new boolean[] { true, false })
3182	+	{
3183	+	final CFException ex = new CFException();
3184	+	final ExceptionalCompletableFutureFunction r =
3185	+	new ExceptionalCompletableFutureFunction(m);
3186	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3187	+	if (!createIncomplete) f.completeExceptionally(ex);
3188	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3189	+	if (createIncomplete) f.completeExceptionally(ex);
3190	+
3191	+	checkCompletedExceptionally(f, ex);
3192	+	checkCompletedNormally(g, r.value);
3193	+	r.assertInvoked();
3194	+	}}
3195	+
3196	+	/**
3197	+	* exceptionallyCompose completes exceptionally on exception if action does
3198	+	*/
3199	+	public void testExceptionallyCompose_actionFailed() {
3200	+	for (ExecutionMode m : ExecutionMode.values())
3201	+	for (boolean createIncomplete : new boolean[] { true, false })
3202	+	for (Integer v1 : new Integer[] { 1, null })
3203	+	{
3204	+	final CFException ex = new CFException();
3205	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3206	+	final FailingExceptionalCompletableFutureFunction r
3207	+	= new FailingExceptionalCompletableFutureFunction(m);
3208	+	if (!createIncomplete) f.completeExceptionally(ex);
3209	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3210	+	if (createIncomplete) f.completeExceptionally(ex);
3211	+
3212	+	checkCompletedExceptionally(f, ex);
3213	+	checkCompletedWithWrappedException(g, r.ex);
3214	+	r.assertInvoked();
3215	+	}}
3216	+
3217	+	/**
3218	+	* exceptionallyCompose result completes exceptionally if the
3219	+	* result of the action does
3220	+	*/
3221	+	public void testExceptionallyCompose_actionReturnsFailingFuture() {
3222	+	for (ExecutionMode m : ExecutionMode.values())
3223	+	for (int order = 0; order < 6; order++)
3224	+	for (Integer v1 : new Integer[] { 1, null })
3225	+	{
3226	+	final CFException ex0 = new CFException();
3227	+	final CFException ex = new CFException();
3228	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3229	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
3230	+	final CompletableFuture<Integer> h;
3231	+	// Test all permutations of orders
3232	+	switch (order) {
3233	+	case 0:
3234	+	assertTrue(f.completeExceptionally(ex0));
3235	+	assertTrue(g.completeExceptionally(ex));
3236	+	h = m.exceptionallyCompose(f, (x -> g));
3237	+	break;
3238	+	case 1:
3239	+	assertTrue(f.completeExceptionally(ex0));
3240	+	h = m.exceptionallyCompose(f, (x -> g));
3241	+	assertTrue(g.completeExceptionally(ex));
3242	+	break;
3243	+	case 2:
3244	+	assertTrue(g.completeExceptionally(ex));
3245	+	assertTrue(f.completeExceptionally(ex0));
3246	+	h = m.exceptionallyCompose(f, (x -> g));
3247	+	break;
3248	+	case 3:
3249	+	assertTrue(g.completeExceptionally(ex));
3250	+	h = m.exceptionallyCompose(f, (x -> g));
3251	+	assertTrue(f.completeExceptionally(ex0));
3252	+	break;
3253	+	case 4:
3254	+	h = m.exceptionallyCompose(f, (x -> g));
3255	+	assertTrue(f.completeExceptionally(ex0));
3256	+	assertTrue(g.completeExceptionally(ex));
3257	+	break;
3258	+	case 5:
3259	+	h = m.exceptionallyCompose(f, (x -> g));
3260	+	assertTrue(f.completeExceptionally(ex0));
3261	+	assertTrue(g.completeExceptionally(ex));
3262	+	break;
3263	+	default: throw new AssertionError();
3264	+	}
3265	+
3266	+	checkCompletedExceptionally(g, ex);
3267	+	checkCompletedWithWrappedException(h, ex);
3268	+	checkCompletedExceptionally(f, ex0);
3269	+	}}
3270	+
3271		// other static methods
3272
3273		/**
#	Line 3114 | Line 3300 | public class CompletableFutureTest exten
3300		}
3301		}
3302
3303	<	public void testAllOf_backwards() throws Exception {
3303	>	public void testAllOf_normal_backwards() throws Exception {
3304		for (int k = 1; k < 10; k++) {
3305		CompletableFuture<Integer>[] fs
3306		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
#	Line 3142 | Line 3328 | public class CompletableFutureTest exten
3328		for (int i = 0; i < k; i++) {
3329		checkIncomplete(f);
3330		checkIncomplete(CompletableFuture.allOf(fs));
3331	<	if (i != k/2) {
3331	>	if (i != k / 2) {
3332		fs[i].complete(i);
3333		checkCompletedNormally(fs[i], i);
3334		} else {
#	Line 3245 | Line 3431 | public class CompletableFutureTest exten
3431		/**
3432		* Completion methods throw NullPointerException with null arguments
3433		*/
3434	+	@SuppressWarnings("FutureReturnValueIgnored")
3435		public void testNPE() {
3436		CompletableFuture<Integer> f = new CompletableFuture<>();
3437		CompletableFuture<Integer> g = new CompletableFuture<>();
#	Line 3264 | Line 3451 | public class CompletableFutureTest exten
3451
3452		() -> f.thenApply(null),
3453		() -> f.thenApplyAsync(null),
3454	<	() -> f.thenApplyAsync((x) -> x, null),
3454	>	() -> f.thenApplyAsync(x -> x, null),
3455		() -> f.thenApplyAsync(null, exec),
3456
3457		() -> f.thenAccept(null),
3458		() -> f.thenAcceptAsync(null),
3459	<	() -> f.thenAcceptAsync((x) -> {} , null),
3459	>	() -> f.thenAcceptAsync(x -> {} , null),
3460		() -> f.thenAcceptAsync(null, exec),
3461
3462		() -> f.thenRun(null),
#	Line 3304 | Line 3491 | public class CompletableFutureTest exten
3491		() -> f.applyToEither(g, null),
3492		() -> f.applyToEitherAsync(g, null),
3493		() -> f.applyToEitherAsync(g, null, exec),
3494	<	() -> f.applyToEither(nullFuture, (x) -> x),
3495	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x),
3496	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
3497	<	() -> f.applyToEitherAsync(g, (x) -> x, null),
3494	>	() -> f.applyToEither(nullFuture, x -> x),
3495	>	() -> f.applyToEitherAsync(nullFuture, x -> x),
3496	>	() -> f.applyToEitherAsync(nullFuture, x -> x, exec),
3497	>	() -> f.applyToEitherAsync(g, x -> x, null),
3498
3499		() -> f.acceptEither(g, null),
3500		() -> f.acceptEitherAsync(g, null),
3501		() -> f.acceptEitherAsync(g, null, exec),
3502	<	() -> f.acceptEither(nullFuture, (x) -> {}),
3503	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}),
3504	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
3505	<	() -> f.acceptEitherAsync(g, (x) -> {}, null),
3502	>	() -> f.acceptEither(nullFuture, x -> {}),
3503	>	() -> f.acceptEitherAsync(nullFuture, x -> {}),
3504	>	() -> f.acceptEitherAsync(nullFuture, x -> {}, exec),
3505	>	() -> f.acceptEitherAsync(g, x -> {}, null),
3506
3507		() -> f.runAfterEither(g, null),
3508		() -> f.runAfterEitherAsync(g, null),
#	Line 3345 | Line 3532 | public class CompletableFutureTest exten
3532		() -> CompletableFuture.anyOf(null, f),
3533
3534		() -> f.obtrudeException(null),
3535	+
3536	+	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3537	+	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3538	+	() -> CompletableFuture.delayedExecutor(1L, null),
3539	+
3540	+	() -> f.orTimeout(1L, null),
3541	+	() -> f.completeOnTimeout(42, 1L, null),
3542	+
3543	+	() -> CompletableFuture.failedFuture(null),
3544	+	() -> CompletableFuture.failedStage(null),
3545		};
3546
3547		assertThrows(NullPointerException.class, throwingActions);
#	Line 3352 | Line 3549 | public class CompletableFutureTest exten
3549		}
3550
3551		/**
3552	+	* Test submissions to an executor that rejects all tasks.
3553	+	*/
3554	+	public void testRejectingExecutor() {
3555	+	for (Integer v : new Integer[] { 1, null })
3556	+	{
3557	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3558	+
3559	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3560	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3561	+
3562	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3563	+
3564	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3565	+	srcs.add(complete);
3566	+	srcs.add(incomplete);
3567	+
3568	+	for (CompletableFuture<Integer> src : srcs) {
3569	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3570	+	fs.add(src.thenRunAsync(() -> {}, e));
3571	+	fs.add(src.thenAcceptAsync(z -> {}, e));
3572	+	fs.add(src.thenApplyAsync(z -> z, e));
3573	+
3574	+	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3575	+	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3576	+	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3577	+
3578	+	fs.add(src.applyToEitherAsync(src, z -> z, e));
3579	+	fs.add(src.acceptEitherAsync(src, z -> {}, e));
3580	+	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3581	+
3582	+	fs.add(src.thenComposeAsync(z -> null, e));
3583	+	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3584	+	fs.add(src.handleAsync((z, t) -> null, e));
3585	+
3586	+	for (CompletableFuture<?> future : fs) {
3587	+	if (src.isDone())
3588	+	checkCompletedWithWrappedException(future, e.ex);
3589	+	else
3590	+	checkIncomplete(future);
3591	+	}
3592	+	futures.addAll(fs);
3593	+	}
3594	+
3595	+	{
3596	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3597	+
3598	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3599	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3600	+
3601	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3602	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3603	+
3604	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3605	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3606	+
3607	+	for (CompletableFuture<?> future : fs)
3608	+	checkIncomplete(future);
3609	+	futures.addAll(fs);
3610	+	}
3611	+
3612	+	{
3613	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3614	+
3615	+	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3616	+	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3617	+
3618	+	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3619	+	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3620	+
3621	+	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3622	+	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3623	+
3624	+	for (CompletableFuture<?> future : fs)
3625	+	checkCompletedWithWrappedException(future, e.ex);
3626	+	futures.addAll(fs);
3627	+	}
3628	+
3629	+	incomplete.complete(v);
3630	+
3631	+	for (CompletableFuture<?> future : futures)
3632	+	checkCompletedWithWrappedException(future, e.ex);
3633	+
3634	+	assertEquals(futures.size(), e.count.get());
3635	+	}}
3636	+
3637	+	/**
3638	+	* Test submissions to an executor that rejects all tasks, but
3639	+	* should never be invoked because the dependent future is
3640	+	* explicitly completed.
3641	+	*/
3642	+	public void testRejectingExecutorNeverInvoked() {
3643	+	for (Integer v : new Integer[] { 1, null })
3644	+	{
3645	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3646	+
3647	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3648	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3649	+
3650	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3651	+
3652	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3653	+	srcs.add(complete);
3654	+	srcs.add(incomplete);
3655	+
3656	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3657	+	fs.add(incomplete.thenRunAsync(() -> {}, e));
3658	+	fs.add(incomplete.thenAcceptAsync(z -> {}, e));
3659	+	fs.add(incomplete.thenApplyAsync(z -> z, e));
3660	+
3661	+	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3662	+	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3663	+	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3664	+
3665	+	fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e));
3666	+	fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e));
3667	+	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3668	+
3669	+	fs.add(incomplete.thenComposeAsync(z -> null, e));
3670	+	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3671	+	fs.add(incomplete.handleAsync((z, t) -> null, e));
3672	+
3673	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3674	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3675	+
3676	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3677	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3678	+
3679	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3680	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3681	+
3682	+	for (CompletableFuture<?> future : fs)
3683	+	checkIncomplete(future);
3684	+
3685	+	for (CompletableFuture<?> future : fs)
3686	+	future.complete(null);
3687	+
3688	+	incomplete.complete(v);
3689	+
3690	+	for (CompletableFuture<?> future : fs)
3691	+	checkCompletedNormally(future, null);
3692	+
3693	+	assertEquals(0, e.count.get());
3694	+	}}
3695	+
3696	+	/**
3697		* toCompletableFuture returns this CompletableFuture.
3698		*/
3699		public void testToCompletableFuture() {
#	Line 3365 | Line 3707 | public class CompletableFutureTest exten
3707		* newIncompleteFuture returns an incomplete CompletableFuture
3708		*/
3709		public void testNewIncompleteFuture() {
3710	+	for (Integer v1 : new Integer[] { 1, null })
3711	+	{
3712		CompletableFuture<Integer> f = new CompletableFuture<>();
3713		CompletableFuture<Integer> g = f.newIncompleteFuture();
3714		checkIncomplete(f);
3715		checkIncomplete(g);
3716	<	}
3716	>	f.complete(v1);
3717	>	checkCompletedNormally(f, v1);
3718	>	checkIncomplete(g);
3719	>	g.complete(v1);
3720	>	checkCompletedNormally(g, v1);
3721	>	assertSame(g.getClass(), CompletableFuture.class);
3722	>	}}
3723
3724		/**
3725		* completedStage returns a completed CompletionStage
3726		*/
3727		public void testCompletedStage() {
3728	<	AtomicInteger x = new AtomicInteger();
3729	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3728	>	AtomicInteger x = new AtomicInteger(0);
3729	>	AtomicReference<Throwable> r = new AtomicReference<>();
3730		CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3731		f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3732		assertEquals(x.get(), 1);
#	Line 3385 | Line 3735 | public class CompletableFutureTest exten
3735
3736		/**
3737		* defaultExecutor by default returns the commonPool if
3738	<	* it supports at least one thread.
3738	>	* it supports more than one thread.
3739		*/
3740		public void testDefaultExecutor() {
3741		CompletableFuture<Integer> f = new CompletableFuture<>();
#	Line 3393 | Line 3743 | public class CompletableFutureTest exten
3743		Executor c = ForkJoinPool.commonPool();
3744		if (ForkJoinPool.getCommonPoolParallelism() > 1)
3745		assertSame(e, c);
3746	+	else
3747	+	assertNotSame(e, c);
3748		}
3749
3750		/**
#	Line 3402 | Line 3754 | public class CompletableFutureTest exten
3754		public void testFailedFuture() {
3755		CFException ex = new CFException();
3756		CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3757	<	checkCompletedExceptionallyWithRootCause(f, ex);
3757	>	checkCompletedExceptionally(f, ex);
3758		}
3759
3760		/**
3761		* failedFuture(null) throws NPE
3762		*/
3763	<	public void testFailedFuture2() {
3763	>	public void testFailedFuture_null() {
3764		try {
3765		CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3766		shouldThrow();
#	Line 3419 | Line 3771 | public class CompletableFutureTest exten
3771		* copy returns a CompletableFuture that is completed normally,
3772		* with the same value, when source is.
3773		*/
3774	<	public void testCopy() {
3774	>	public void testCopy_normalCompletion() {
3775	>	for (boolean createIncomplete : new boolean[] { true, false })
3776	>	for (Integer v1 : new Integer[] { 1, null })
3777	>	{
3778		CompletableFuture<Integer> f = new CompletableFuture<>();
3779	+	if (!createIncomplete) assertTrue(f.complete(v1));
3780		CompletableFuture<Integer> g = f.copy();
3781	<	checkIncomplete(f);
3782	<	checkIncomplete(g);
3783	<	f.complete(1);
3784	<	checkCompletedNormally(f, 1);
3785	<	checkCompletedNormally(g, 1);
3786	<	}
3781	>	if (createIncomplete) {
3782	>	checkIncomplete(f);
3783	>	checkIncomplete(g);
3784	>	assertTrue(f.complete(v1));
3785	>	}
3786	>	checkCompletedNormally(f, v1);
3787	>	checkCompletedNormally(g, v1);
3788	>	}}
3789
3790		/**
3791		* copy returns a CompletableFuture that is completed exceptionally
3792		* when source is.
3793		*/
3794	<	public void testCopy2() {
3794	>	public void testCopy_exceptionalCompletion() {
3795	>	for (boolean createIncomplete : new boolean[] { true, false })
3796	>	{
3797	>	CFException ex = new CFException();
3798		CompletableFuture<Integer> f = new CompletableFuture<>();
3799	+	if (!createIncomplete) f.completeExceptionally(ex);
3800		CompletableFuture<Integer> g = f.copy();
3801	<	checkIncomplete(f);
3802	<	checkIncomplete(g);
3803	<	CFException ex = new CFException();
3804	<	f.completeExceptionally(ex);
3801	>	if (createIncomplete) {
3802	>	checkIncomplete(f);
3803	>	checkIncomplete(g);
3804	>	f.completeExceptionally(ex);
3805	>	}
3806		checkCompletedExceptionally(f, ex);
3807	<	checkCompletedWithWrappedCFException(g);
3807	>	checkCompletedWithWrappedException(g, ex);
3808	>	}}
3809	>
3810	>	/**
3811	>	* Completion of a copy does not complete its source.
3812	>	*/
3813	>	public void testCopy_oneWayPropagation() {
3814	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3815	>	assertTrue(f.copy().complete(1));
3816	>	assertTrue(f.copy().complete(null));
3817	>	assertTrue(f.copy().cancel(true));
3818	>	assertTrue(f.copy().cancel(false));
3819	>	assertTrue(f.copy().completeExceptionally(new CFException()));
3820	>	checkIncomplete(f);
3821		}
3822
3823		/**
#	Line 3451 | Line 3827 | public class CompletableFutureTest exten
3827		public void testMinimalCompletionStage() {
3828		CompletableFuture<Integer> f = new CompletableFuture<>();
3829		CompletionStage<Integer> g = f.minimalCompletionStage();
3830	<	AtomicInteger x = new AtomicInteger();
3831	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3830	>	AtomicInteger x = new AtomicInteger(0);
3831	>	AtomicReference<Throwable> r = new AtomicReference<>();
3832		checkIncomplete(f);
3833		g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3834		f.complete(1);
#	Line 3468 | Line 3844 | public class CompletableFutureTest exten
3844		public void testMinimalCompletionStage2() {
3845		CompletableFuture<Integer> f = new CompletableFuture<>();
3846		CompletionStage<Integer> g = f.minimalCompletionStage();
3847	<	AtomicInteger x = new AtomicInteger();
3848	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3847	>	AtomicInteger x = new AtomicInteger(0);
3848	>	AtomicReference<Throwable> r = new AtomicReference<>();
3849		g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3850		checkIncomplete(f);
3851		CFException ex = new CFException();
#	Line 3486 | Line 3862 | public class CompletableFutureTest exten
3862		public void testFailedStage() {
3863		CFException ex = new CFException();
3864		CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3865	<	AtomicInteger x = new AtomicInteger();
3866	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3865	>	AtomicInteger x = new AtomicInteger(0);
3866	>	AtomicReference<Throwable> r = new AtomicReference<>();
3867		f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3868		assertEquals(x.get(), 0);
3869	<	assertEquals(r.get().getCause(), ex);
3869	>	assertEquals(r.get(), ex);
3870		}
3871
3872		/**
3873		* completeAsync completes with value of given supplier
3874		*/
3875		public void testCompleteAsync() {
3876	+	for (Integer v1 : new Integer[] { 1, null })
3877	+	{
3878		CompletableFuture<Integer> f = new CompletableFuture<>();
3879	<	f.completeAsync(() -> 1);
3879	>	f.completeAsync(() -> v1);
3880		f.join();
3881	<	checkCompletedNormally(f, 1);
3882	<	}
3881	>	checkCompletedNormally(f, v1);
3882	>	}}
3883
3884		/**
3885		* completeAsync completes exceptionally if given supplier throws
#	Line 3509 | Line 3887 | public class CompletableFutureTest exten
3887		public void testCompleteAsync2() {
3888		CompletableFuture<Integer> f = new CompletableFuture<>();
3889		CFException ex = new CFException();
3890	<	f.completeAsync(() -> {if (true) throw ex; return 1;});
3890	>	f.completeAsync(() -> { throw ex; });
3891		try {
3892		f.join();
3893		shouldThrow();
3894	<	} catch (Exception success) {}
3895	<	checkCompletedWithWrappedCFException(f);
3894	>	} catch (CompletionException success) {}
3895	>	checkCompletedWithWrappedException(f, ex);
3896		}
3897
3898		/**
3899		* completeAsync with given executor completes with value of given supplier
3900		*/
3901		public void testCompleteAsync3() {
3902	+	for (Integer v1 : new Integer[] { 1, null })
3903	+	{
3904		CompletableFuture<Integer> f = new CompletableFuture<>();
3905	<	f.completeAsync(() -> 1, new ThreadExecutor());
3906	<	f.join();
3907	<	checkCompletedNormally(f, 1);
3908	<	}
3905	>	ThreadExecutor executor = new ThreadExecutor();
3906	>	f.completeAsync(() -> v1, executor);
3907	>	assertSame(v1, f.join());
3908	>	checkCompletedNormally(f, v1);
3909	>	assertEquals(1, executor.count.get());
3910	>	}}
3911
3912		/**
3913		* completeAsync with given executor completes exceptionally if
#	Line 3534 | Line 3916 | public class CompletableFutureTest exten
3916		public void testCompleteAsync4() {
3917		CompletableFuture<Integer> f = new CompletableFuture<>();
3918		CFException ex = new CFException();
3919	<	f.completeAsync(() -> {if (true) throw ex; return 1;}, new ThreadExecutor());
3919	>	ThreadExecutor executor = new ThreadExecutor();
3920	>	f.completeAsync(() -> { throw ex; }, executor);
3921		try {
3922		f.join();
3923		shouldThrow();
3924	<	} catch (Exception success) {}
3925	<	checkCompletedWithWrappedCFException(f);
3924	>	} catch (CompletionException success) {}
3925	>	checkCompletedWithWrappedException(f, ex);
3926	>	assertEquals(1, executor.count.get());
3927		}
3928
3929		/**
3930		* orTimeout completes with TimeoutException if not complete
3931		*/
3932	<	public void testOrTimeout() {
3932	>	public void testOrTimeout_timesOut() {
3933	>	long timeoutMillis = timeoutMillis();
3934		CompletableFuture<Integer> f = new CompletableFuture<>();
3935	<	f.orTimeout(SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
3936	<	checkCompletedExceptionallyWithTimeout(f);
3935	>	long startTime = System.nanoTime();
3936	>	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3937	>	checkCompletedWithTimeoutException(f);
3938	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3939		}
3940
3941		/**
3942		* orTimeout completes normally if completed before timeout
3943		*/
3944	<	public void testOrTimeout2() {
3944	>	public void testOrTimeout_completed() {
3945	>	for (Integer v1 : new Integer[] { 1, null })
3946	>	{
3947		CompletableFuture<Integer> f = new CompletableFuture<>();
3948	<	f.complete(1);
3949	<	f.orTimeout(SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
3950	<	checkCompletedNormally(f, 1);
3948	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3949	>	long startTime = System.nanoTime();
3950	>	f.complete(v1);
3951	>	assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3952	>	assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3953	>	g.complete(v1);
3954	>	checkCompletedNormally(f, v1);
3955	>	checkCompletedNormally(g, v1);
3956	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3957	>	}}
3958	>
3959	>	/**
3960	>	* completeOnTimeout completes with given value if not complete
3961	>	*/
3962	>	public void testCompleteOnTimeout_timesOut() {
3963	>	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3964	>	() -> testCompleteOnTimeout_timesOut(null));
3965		}
3966
3967		/**
3968		* completeOnTimeout completes with given value if not complete
3969		*/
3970	<	public void testCompleteOnTimeout() {
3970	>	public void testCompleteOnTimeout_timesOut(Integer v) {
3971	>	long timeoutMillis = timeoutMillis();
3972		CompletableFuture<Integer> f = new CompletableFuture<>();
3973	<	f.completeOnTimeout(-1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
3974	<	f.join();
3975	<	checkCompletedNormally(f, -1);
3973	>	long startTime = System.nanoTime();
3974	>	assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS));
3975	>	assertSame(v, f.join());
3976	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3977	>	f.complete(99);         // should have no effect
3978	>	checkCompletedNormally(f, v);
3979		}
3980
3981		/**
3982		* completeOnTimeout has no effect if completed within timeout
3983		*/
3984	<	public void testCompleteOnTimeout2() {
3984	>	public void testCompleteOnTimeout_completed() {
3985	>	for (Integer v1 : new Integer[] { 1, null })
3986	>	{
3987		CompletableFuture<Integer> f = new CompletableFuture<>();
3988	<	f.complete(1);
3989	<	f.completeOnTimeout(-1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
3990	<	checkCompletedNormally(f, 1);
3991	<	}
3988	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3989	>	long startTime = System.nanoTime();
3990	>	f.complete(v1);
3991	>	assertSame(f, f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3992	>	assertSame(g, g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3993	>	g.complete(v1);
3994	>	checkCompletedNormally(f, v1);
3995	>	checkCompletedNormally(g, v1);
3996	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3997	>	}}
3998
3999		/**
4000		* delayedExecutor returns an executor that delays submission
4001		*/
4002		public void testDelayedExecutor() {
4003	<	long timeoutMillis = SMALL_DELAY_MS;
4004	<	Executor d = CompletableFuture.delayedExecutor(timeoutMillis,
4005	<	MILLISECONDS);
4003	>	testInParallel(() -> testDelayedExecutor(null, null),
4004	>	() -> testDelayedExecutor(null, 1),
4005	>	() -> testDelayedExecutor(new ThreadExecutor(), 1),
4006	>	() -> testDelayedExecutor(new ThreadExecutor(), 1));
4007	>	}
4008	>
4009	>	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
4010	>	long timeoutMillis = timeoutMillis();
4011	>	// Use an "unreasonably long" long timeout to catch lingering threads
4012	>	long longTimeoutMillis = 1000 * 60 * 60 * 24;
4013	>	final Executor delayer, longDelayer;
4014	>	if (executor == null) {
4015	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
4016	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
4017	>	} else {
4018	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
4019	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
4020	>	}
4021		long startTime = System.nanoTime();
4022	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(() -> 1, d);
4023	<	assertNull(f.getNow(null));
4024	<	try {
4025	<	f.get(LONG_DELAY_MS, MILLISECONDS);
4026	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
4027	<	assertTrue(millisElapsedSince(startTime) > timeoutMillis/2);
4028	<	checkCompletedNormally(f, 1);
4029	<	}
4022	>	CompletableFuture<Integer> f =
4023	>	CompletableFuture.supplyAsync(() -> v, delayer);
4024	>	CompletableFuture<Integer> g =
4025	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
4026	>
4027	>	assertNull(g.getNow(null));
4028	>
4029	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
4030	>	long millisElapsed = millisElapsedSince(startTime);
4031	>	assertTrue(millisElapsed >= timeoutMillis);
4032	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
4033
4034	<	/**
4035	<	* delayedExecutor for a given executor returns an executor that
4036	<	* delays submission
4037	<	*/
3605	<	public void testDelayedExecutor2() {
3606	<	long timeoutMillis = SMALL_DELAY_MS;
3607	<	Executor d = CompletableFuture.delayedExecutor(timeoutMillis,
3608	<	MILLISECONDS,
3609	<	new ThreadExecutor());
3610	<	long startTime = System.nanoTime();
3611	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(() -> 1, d);
3612	<	assertNull(f.getNow(null));
3613	<	try {
3614	<	f.get(LONG_DELAY_MS, MILLISECONDS);
3615	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
3616	<	assertTrue(millisElapsedSince(startTime) > timeoutMillis/2);
3617	<	checkCompletedNormally(f, 1);
4034	>	checkCompletedNormally(f, v);
4035	>
4036	>	checkIncomplete(g);
4037	>	assertTrue(g.cancel(true));
4038		}
4039
4040		//--- tests of implementation details; not part of official tck ---
4041
4042		Object resultOf(CompletableFuture<?> f) {
4043	+	SecurityManager sm = System.getSecurityManager();
4044	+	if (sm != null) {
4045	+	try {
4046	+	System.setSecurityManager(null);
4047	+	} catch (SecurityException giveUp) {
4048	+	return "Reflection not available";
4049	+	}
4050	+	}
4051	+
4052		try {
4053		java.lang.reflect.Field resultField
4054		= CompletableFuture.class.getDeclaredField("result");
4055		resultField.setAccessible(true);
4056		return resultField.get(f);
4057	<	} catch (Throwable t) { throw new AssertionError(t); }
4057	>	} catch (Throwable t) {
4058	>	throw new AssertionError(t);
4059	>	} finally {
4060	>	if (sm != null) System.setSecurityManager(sm);
4061	>	}
4062		}
4063
4064		public void testExceptionPropagationReusesResultObject() {
#	Line 3636 | Line 4069 | public class CompletableFutureTest exten
4069		final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
4070		final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4071
4072	+	final Runnable noopRunnable = new Noop(m);
4073	+	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
4074	+	final Function<Integer, Integer> incFunction = new IncFunction(m);
4075	+
4076		List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
4077		= new ArrayList<>();
4078
4079	<	funs.add((y) -> m.thenRun(y, new Noop(m)));
4080	<	funs.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
4081	<	funs.add((y) -> m.thenApply(y, new IncFunction(m)));
4082	<
4083	<	funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
4084	<	funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
4085	<	funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
4086	<
4087	<	funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
4088	<	funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4089	<	funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
4090	<
4091	<	funs.add((y) -> m.whenComplete(y, (Integer x, Throwable t) -> {}));
4092	<
4093	<	funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
4094	<
4095	<	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
4096	<	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
4079	>	funs.add(y -> m.thenRun(y, noopRunnable));
4080	>	funs.add(y -> m.thenAccept(y, noopConsumer));
4081	>	funs.add(y -> m.thenApply(y, incFunction));
4082	>
4083	>	funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable));
4084	>	funs.add(y -> m.acceptEither(y, incomplete, noopConsumer));
4085	>	funs.add(y -> m.applyToEither(y, incomplete, incFunction));
4086	>
4087	>	funs.add(y -> m.runAfterBoth(y, v42, noopRunnable));
4088	>	funs.add(y -> m.runAfterBoth(v42, y, noopRunnable));
4089	>	funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4090	>	funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
4091	>	funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m)));
4092	>	funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m)));
4093	>
4094	>	funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
4095	>
4096	>	funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m)));
4097	>
4098	>	funs.add(y -> CompletableFuture.allOf(y));
4099	>	funs.add(y -> CompletableFuture.allOf(y, v42));
4100	>	funs.add(y -> CompletableFuture.allOf(v42, y));
4101	>	funs.add(y -> CompletableFuture.anyOf(y));
4102	>	funs.add(y -> CompletableFuture.anyOf(y, incomplete));
4103	>	funs.add(y -> CompletableFuture.anyOf(incomplete, y));
4104
4105		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4106		fun : funs) {
4107		CompletableFuture<Integer> f = new CompletableFuture<>();
4108		f.completeExceptionally(ex);
4109	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4109	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4110		checkCompletedWithWrappedException(src, ex);
4111		CompletableFuture<?> dep = fun.apply(src);
4112		checkCompletedWithWrappedException(dep, ex);
#	Line 3672 | Line 4116 | public class CompletableFutureTest exten
4116		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4117		fun : funs) {
4118		CompletableFuture<Integer> f = new CompletableFuture<>();
4119	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4119	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4120		CompletableFuture<?> dep = fun.apply(src);
4121		f.completeExceptionally(ex);
4122		checkCompletedWithWrappedException(src, ex);
#	Line 3686 | Line 4130 | public class CompletableFutureTest exten
4130		CompletableFuture<Integer> f = new CompletableFuture<>();
4131		f.cancel(mayInterruptIfRunning);
4132		checkCancelled(f);
4133	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4133	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4134		checkCompletedWithWrappedCancellationException(src);
4135		CompletableFuture<?> dep = fun.apply(src);
4136		checkCompletedWithWrappedCancellationException(dep);
#	Line 3697 | Line 4141 | public class CompletableFutureTest exten
4141		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4142		fun : funs) {
4143		CompletableFuture<Integer> f = new CompletableFuture<>();
4144	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4144	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4145		CompletableFuture<?> dep = fun.apply(src);
4146		f.cancel(mayInterruptIfRunning);
4147		checkCancelled(f);
#	Line 3707 | Line 4151 | public class CompletableFutureTest exten
4151		}
4152		}}
4153
4154	+	/**
4155	+	* Minimal completion stages throw UOE for most non-CompletionStage methods
4156	+	*/
4157	+	public void testMinimalCompletionStage_minimality() {
4158	+	if (!testImplementationDetails) return;
4159	+	Function<Method, String> toSignature =
4160	+	method -> method.getName() + Arrays.toString(method.getParameterTypes());
4161	+	Predicate<Method> isNotStatic =
4162	+	method -> (method.getModifiers() & Modifier.STATIC) == 0;
4163	+	List<Method> minimalMethods =
4164	+	Stream.of(Object.class, CompletionStage.class)
4165	+	.flatMap(klazz -> Stream.of(klazz.getMethods()))
4166	+	.filter(isNotStatic)
4167	+	.collect(Collectors.toList());
4168	+	// Methods from CompletableFuture permitted NOT to throw UOE
4169	+	String[] signatureWhitelist = {
4170	+	"newIncompleteFuture[]",
4171	+	"defaultExecutor[]",
4172	+	"minimalCompletionStage[]",
4173	+	"copy[]",
4174	+	};
4175	+	Set<String> permittedMethodSignatures =
4176	+	Stream.concat(minimalMethods.stream().map(toSignature),
4177	+	Stream.of(signatureWhitelist))
4178	+	.collect(Collectors.toSet());
4179	+	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
4180	+	.filter(isNotStatic)
4181	+	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4182	+	.collect(Collectors.toList());
4183	+
4184	+	List<CompletionStage<Integer>> stages = new ArrayList<>();
4185	+	CompletionStage<Integer> min =
4186	+	new CompletableFuture<Integer>().minimalCompletionStage();
4187	+	stages.add(min);
4188	+	stages.add(min.thenApply(x -> x));
4189	+	stages.add(CompletableFuture.completedStage(1));
4190	+	stages.add(CompletableFuture.failedStage(new CFException()));
4191	+
4192	+	List<Method> bugs = new ArrayList<>();
4193	+	for (Method method : allMethods) {
4194	+	Class<?>[] parameterTypes = method.getParameterTypes();
4195	+	Object[] args = new Object[parameterTypes.length];
4196	+	// Manufacture boxed primitives for primitive params
4197	+	for (int i = 0; i < args.length; i++) {
4198	+	Class<?> type = parameterTypes[i];
4199	+	if (parameterTypes[i] == boolean.class)
4200	+	args[i] = false;
4201	+	else if (parameterTypes[i] == int.class)
4202	+	args[i] = 0;
4203	+	else if (parameterTypes[i] == long.class)
4204	+	args[i] = 0L;
4205	+	}
4206	+	for (CompletionStage<Integer> stage : stages) {
4207	+	try {
4208	+	method.invoke(stage, args);
4209	+	bugs.add(method);
4210	+	}
4211	+	catch (java.lang.reflect.InvocationTargetException expected) {
4212	+	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4213	+	bugs.add(method);
4214	+	// expected.getCause().printStackTrace();
4215	+	}
4216	+	}
4217	+	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4218	+	}
4219	+	}
4220	+	if (!bugs.isEmpty())
4221	+	throw new Error("Methods did not throw UOE: " + bugs);
4222	+	}
4223	+
4224	+	/**
4225	+	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4226	+	* is completed normally, with the same value, when source is.
4227	+	*/
4228	+	public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() {
4229	+	for (boolean createIncomplete : new boolean[] { true, false })
4230	+	for (Integer v1 : new Integer[] { 1, null })
4231	+	{
4232	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4233	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4234	+	if (!createIncomplete) assertTrue(f.complete(v1));
4235	+	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4236	+	if (createIncomplete) {
4237	+	checkIncomplete(f);
4238	+	checkIncomplete(g);
4239	+	assertTrue(f.complete(v1));
4240	+	}
4241	+	checkCompletedNormally(f, v1);
4242	+	checkCompletedNormally(g, v1);
4243	+	}}
4244	+
4245	+	/**
4246	+	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4247	+	* is completed exceptionally when source is.
4248	+	*/
4249	+	public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() {
4250	+	for (boolean createIncomplete : new boolean[] { true, false })
4251	+	{
4252	+	CFException ex = new CFException();
4253	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4254	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4255	+	if (!createIncomplete) f.completeExceptionally(ex);
4256	+	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4257	+	if (createIncomplete) {
4258	+	checkIncomplete(f);
4259	+	checkIncomplete(g);
4260	+	f.completeExceptionally(ex);
4261	+	}
4262	+	checkCompletedExceptionally(f, ex);
4263	+	checkCompletedWithWrappedException(g, ex);
4264	+	}}
4265	+
4266	+	/**
4267	+	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4268	+	*/
4269	+	public void testMinimalCompletionStage_toCompletableFuture_mutable() {
4270	+	for (Integer v1 : new Integer[] { 1, null })
4271	+	{
4272	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4273	+	CompletionStage minimal = f.minimalCompletionStage();
4274	+	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4275	+	assertTrue(g.complete(v1));
4276	+	checkCompletedNormally(g, v1);
4277	+	checkIncomplete(f);
4278	+	checkIncomplete(minimal.toCompletableFuture());
4279	+	}}
4280	+
4281	+	/**
4282	+	* minimalStage.toCompletableFuture().join() awaits completion
4283	+	*/
4284	+	public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception {
4285	+	for (boolean createIncomplete : new boolean[] { true, false })
4286	+	for (Integer v1 : new Integer[] { 1, null })
4287	+	{
4288	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4289	+	if (!createIncomplete) assertTrue(f.complete(v1));
4290	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4291	+	if (createIncomplete) assertTrue(f.complete(v1));
4292	+	assertEquals(v1, minimal.toCompletableFuture().join());
4293	+	assertEquals(v1, minimal.toCompletableFuture().get());
4294	+	checkCompletedNormally(minimal.toCompletableFuture(), v1);
4295	+	}}
4296	+
4297	+	/**
4298	+	* Completion of a toCompletableFuture copy of a minimal stage
4299	+	* does not complete its source.
4300	+	*/
4301	+	public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() {
4302	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4303	+	CompletionStage<Integer> g = f.minimalCompletionStage();
4304	+	assertTrue(g.toCompletableFuture().complete(1));
4305	+	assertTrue(g.toCompletableFuture().complete(null));
4306	+	assertTrue(g.toCompletableFuture().cancel(true));
4307	+	assertTrue(g.toCompletableFuture().cancel(false));
4308	+	assertTrue(g.toCompletableFuture().completeExceptionally(new CFException()));
4309	+	checkIncomplete(g.toCompletableFuture());
4310	+	f.complete(1);
4311	+	checkCompletedNormally(g.toCompletableFuture(), 1);
4312	+	}
4313	+
4314	+	/** Demo utility method for external reliable toCompletableFuture */
4315	+	static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) {
4316	+	CompletableFuture<T> f = new CompletableFuture<>();
4317	+	stage.handle((T t, Throwable ex) -> {
4318	+	if (ex != null) f.completeExceptionally(ex);
4319	+	else f.complete(t);
4320	+	return null;
4321	+	});
4322	+	return f;
4323	+	}
4324	+
4325	+	/** Demo utility method to join a CompletionStage */
4326	+	static <T> T join(CompletionStage<T> stage) {
4327	+	return toCompletableFuture(stage).join();
4328	+	}
4329	+
4330	+	/**
4331	+	* Joining a minimal stage "by hand" works
4332	+	*/
4333	+	public void testMinimalCompletionStage_join_by_hand() {
4334	+	for (boolean createIncomplete : new boolean[] { true, false })
4335	+	for (Integer v1 : new Integer[] { 1, null })
4336	+	{
4337	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4338	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4339	+	CompletableFuture<Integer> g = new CompletableFuture<>();
4340	+	if (!createIncomplete) assertTrue(f.complete(v1));
4341	+	minimal.thenAccept(x -> g.complete(x));
4342	+	if (createIncomplete) assertTrue(f.complete(v1));
4343	+	g.join();
4344	+	checkCompletedNormally(g, v1);
4345	+	checkCompletedNormally(f, v1);
4346	+	assertEquals(v1, join(minimal));
4347	+	}}
4348	+
4349	+	static class Monad {
4350	+	static class ZeroException extends RuntimeException {
4351	+	public ZeroException() { super("monadic zero"); }
4352	+	}
4353	+	// "return", "unit"
4354	+	static <T> CompletableFuture<T> unit(T value) {
4355	+	return completedFuture(value);
4356	+	}
4357	+	// monadic zero ?
4358	+	static <T> CompletableFuture<T> zero() {
4359	+	return failedFuture(new ZeroException());
4360	+	}
4361	+	// >=>
4362	+	static <T,U,V> Function<T, CompletableFuture<V>> compose
4363	+	(Function<T, CompletableFuture<U>> f,
4364	+	Function<U, CompletableFuture<V>> g) {
4365	+	return x -> f.apply(x).thenCompose(g);
4366	+	}
4367	+
4368	+	static void assertZero(CompletableFuture<?> f) {
4369	+	try {
4370	+	f.getNow(null);
4371	+	throw new AssertionError("should throw");
4372	+	} catch (CompletionException success) {
4373	+	assertTrue(success.getCause() instanceof ZeroException);
4374	+	}
4375	+	}
4376	+
4377	+	static <T> void assertFutureEquals(CompletableFuture<T> f,
4378	+	CompletableFuture<T> g) {
4379	+	T fval = null, gval = null;
4380	+	Throwable fex = null, gex = null;
4381	+
4382	+	try { fval = f.get(); }
4383	+	catch (ExecutionException ex) { fex = ex.getCause(); }
4384	+	catch (Throwable ex) { fex = ex; }
4385	+
4386	+	try { gval = g.get(); }
4387	+	catch (ExecutionException ex) { gex = ex.getCause(); }
4388	+	catch (Throwable ex) { gex = ex; }
4389	+
4390	+	if (fex != null || gex != null)
4391	+	assertSame(fex.getClass(), gex.getClass());
4392	+	else
4393	+	assertEquals(fval, gval);
4394	+	}
4395	+
4396	+	static class PlusFuture<T> extends CompletableFuture<T> {
4397	+	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4398	+	}
4399	+
4400	+	/** Implements "monadic plus". */
4401	+	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
4402	+	CompletableFuture<? extends T> g) {
4403	+	PlusFuture<T> plus = new PlusFuture<T>();
4404	+	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
4405	+	try {
4406	+	if (ex == null) {
4407	+	if (plus.complete(result))
4408	+	if (plus.firstFailure.get() != null)
4409	+	plus.firstFailure.set(null);
4410	+	}
4411	+	else if (plus.firstFailure.compareAndSet(null, ex)) {
4412	+	if (plus.isDone())
4413	+	plus.firstFailure.set(null);
4414	+	}
4415	+	else {
4416	+	// first failure has precedence
4417	+	Throwable first = plus.firstFailure.getAndSet(null);
4418	+
4419	+	// may fail with "Self-suppression not permitted"
4420	+	try { first.addSuppressed(ex); }
4421	+	catch (Exception ignored) {}
4422	+
4423	+	plus.completeExceptionally(first);
4424	+	}
4425	+	} catch (Throwable unexpected) {
4426	+	plus.completeExceptionally(unexpected);
4427	+	}
4428	+	};
4429	+	f.whenComplete(action);
4430	+	g.whenComplete(action);
4431	+	return plus;
4432	+	}
4433	+	}
4434	+
4435	+	/**
4436	+	* CompletableFuture is an additive monad - sort of.
4437	+	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
4438	+	*/
4439	+	public void testAdditiveMonad() throws Throwable {
4440	+	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
4441	+	CompletableFuture<Long> zero = Monad.zero();
4442	+
4443	+	// Some mutually non-commutative functions
4444	+	Function<Long, CompletableFuture<Long>> triple
4445	+	= x -> Monad.unit(3 * x);
4446	+	Function<Long, CompletableFuture<Long>> inc
4447	+	= x -> Monad.unit(x + 1);
4448	+
4449	+	// unit is a right identity: m >>= unit === m
4450	+	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
4451	+	inc.apply(5L));
4452	+	// unit is a left identity: (unit x) >>= f === f x
4453	+	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
4454	+	inc.apply(5L));
4455	+
4456	+	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4457	+	Monad.assertFutureEquals(
4458	+	unit.apply(5L).thenCompose(inc).thenCompose(triple),
4459	+	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4460	+
4461	+	// The case for CompletableFuture as an additive monad is weaker...
4462	+
4463	+	// zero is a monadic zero
4464	+	Monad.assertZero(zero);
4465	+
4466	+	// left zero: zero >>= f === zero
4467	+	Monad.assertZero(zero.thenCompose(inc));
4468	+	// right zero: f >>= (\x -> zero) === zero
4469	+	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4470	+
4471	+	// f plus zero === f
4472	+	Monad.assertFutureEquals(Monad.unit(5L),
4473	+	Monad.plus(Monad.unit(5L), zero));
4474	+	// zero plus f === f
4475	+	Monad.assertFutureEquals(Monad.unit(5L),
4476	+	Monad.plus(zero, Monad.unit(5L)));
4477	+	// zero plus zero === zero
4478	+	Monad.assertZero(Monad.plus(zero, zero));
4479	+	{
4480	+	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
4481	+	Monad.unit(8L));
4482	+	// non-determinism
4483	+	assertTrue(f.get() == 5L || f.get() == 8L);
4484	+	}
4485	+
4486	+	CompletableFuture<Long> godot = new CompletableFuture<>();
4487	+	// f plus godot === f (doesn't wait for godot)
4488	+	Monad.assertFutureEquals(Monad.unit(5L),
4489	+	Monad.plus(Monad.unit(5L), godot));
4490	+	// godot plus f === f (doesn't wait for godot)
4491	+	Monad.assertFutureEquals(Monad.unit(5L),
4492	+	Monad.plus(godot, Monad.unit(5L)));
4493	+	}
4494	+
4495	+	/** Test long recursive chains of CompletableFutures with cascading completions */
4496	+	@SuppressWarnings("FutureReturnValueIgnored")
4497	+	public void testRecursiveChains() throws Throwable {
4498	+	for (ExecutionMode m : ExecutionMode.values())
4499	+	for (boolean addDeadEnds : new boolean[] { true, false })
4500	+	{
4501	+	final int val = 42;
4502	+	final int n = expensiveTests ? 1_000 : 2;
4503	+	CompletableFuture<Integer> head = new CompletableFuture<>();
4504	+	CompletableFuture<Integer> tail = head;
4505	+	for (int i = 0; i < n; i++) {
4506	+	if (addDeadEnds) m.thenApply(tail, v -> v + 1);
4507	+	tail = m.thenApply(tail, v -> v + 1);
4508	+	if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1);
4509	+	tail = m.applyToEither(tail, tail, v -> v + 1);
4510	+	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1);
4511	+	tail = m.thenCombine(tail, tail, (v, w) -> v + 1);
4512	+	}
4513	+	head.complete(val);
4514	+	assertEquals(val + 3 * n, (int) tail.join());
4515	+	}}
4516	+
4517	+	/**
4518	+	* A single CompletableFuture with many dependents.
4519	+	* A demo of scalability - runtime is O(n).
4520	+	*/
4521	+	@SuppressWarnings("FutureReturnValueIgnored")
4522	+	public void testManyDependents() throws Throwable {
4523	+	final int n = expensiveTests ? 1_000_000 : 10;
4524	+	final CompletableFuture<Void> head = new CompletableFuture<>();
4525	+	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4526	+	final AtomicInteger count = new AtomicInteger(0);
4527	+	for (int i = 0; i < n; i++) {
4528	+	head.thenRun(() -> count.getAndIncrement());
4529	+	head.thenAccept(x -> count.getAndIncrement());
4530	+	head.thenApply(x -> count.getAndIncrement());
4531	+
4532	+	head.runAfterBoth(complete, () -> count.getAndIncrement());
4533	+	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
4534	+	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
4535	+	complete.runAfterBoth(head, () -> count.getAndIncrement());
4536	+	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
4537	+	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4538	+
4539	+	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4540	+	head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4541	+	head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4542	+	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4543	+	new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement());
4544	+	new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement());
4545	+	}
4546	+	head.complete(null);
4547	+	assertEquals(5 * 3 * n, count.get());
4548	+	}
4549	+
4550	+	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4551	+	@SuppressWarnings("FutureReturnValueIgnored")
4552	+	public void testCoCompletionGarbageRetention() throws Throwable {
4553	+	final int n = expensiveTests ? 1_000_000 : 10;
4554	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4555	+	CompletableFuture<Integer> f;
4556	+	for (int i = 0; i < n; i++) {
4557	+	f = new CompletableFuture<>();
4558	+	f.runAfterEither(incomplete, () -> {});
4559	+	f.complete(null);
4560	+
4561	+	f = new CompletableFuture<>();
4562	+	f.acceptEither(incomplete, x -> {});
4563	+	f.complete(null);
4564	+
4565	+	f = new CompletableFuture<>();
4566	+	f.applyToEither(incomplete, x -> x);
4567	+	f.complete(null);
4568	+
4569	+	f = new CompletableFuture<>();
4570	+	CompletableFuture.anyOf(f, incomplete);
4571	+	f.complete(null);
4572	+	}
4573	+
4574	+	for (int i = 0; i < n; i++) {
4575	+	f = new CompletableFuture<>();
4576	+	incomplete.runAfterEither(f, () -> {});
4577	+	f.complete(null);
4578	+
4579	+	f = new CompletableFuture<>();
4580	+	incomplete.acceptEither(f, x -> {});
4581	+	f.complete(null);
4582	+
4583	+	f = new CompletableFuture<>();
4584	+	incomplete.applyToEither(f, x -> x);
4585	+	f.complete(null);
4586	+
4587	+	f = new CompletableFuture<>();
4588	+	CompletableFuture.anyOf(incomplete, f);
4589	+	f.complete(null);
4590	+	}
4591	+	}
4592	+
4593	+	/**
4594	+	* Reproduction recipe for:
4595	+	* 8160402: Garbage retention with CompletableFuture.anyOf
4596	+	* 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
4597	+	*/
4598	+	public void testAnyOfGarbageRetention() throws Throwable {
4599	+	for (Integer v : new Integer[] { 1, null })
4600	+	{
4601	+	final int n = expensiveTests ? 100_000 : 10;
4602	+	CompletableFuture<Integer>[] fs
4603	+	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4604	+	for (int i = 0; i < fs.length; i++)
4605	+	fs[i] = new CompletableFuture<>();
4606	+	fs[fs.length - 1].complete(v);
4607	+	for (int i = 0; i < n; i++)
4608	+	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4609	+	}}
4610	+
4611	+	/**
4612	+	* Checks for garbage retention with allOf.
4613	+	*
4614	+	* As of 2016-07, fails with OOME:
4615	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4616	+	*/
4617	+	public void testCancelledAllOfGarbageRetention() throws Throwable {
4618	+	final int n = expensiveTests ? 100_000 : 10;
4619	+	CompletableFuture<Integer>[] fs
4620	+	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4621	+	for (int i = 0; i < fs.length; i++)
4622	+	fs[i] = new CompletableFuture<>();
4623	+	for (int i = 0; i < n; i++)
4624	+	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4625	+	}
4626	+
4627	+	/**
4628	+	* Checks for garbage retention when a dependent future is
4629	+	* cancelled and garbage-collected.
4630	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4631	+	*
4632	+	* As of 2016-07, fails with OOME:
4633	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4634	+	*/
4635	+	public void testCancelledGarbageRetention() throws Throwable {
4636	+	final int n = expensiveTests ? 100_000 : 10;
4637	+	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4638	+	for (int i = 0; i < n; i++)
4639	+	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4640	+	}
4641	+
4642	+	/**
4643	+	* Checks for garbage retention when MinimalStage.toCompletableFuture()
4644	+	* is invoked many times.
4645	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4646	+	*
4647	+	* As of 2016-07, fails with OOME:
4648	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck
4649	+	*/
4650	+	public void testToCompletableFutureGarbageRetention() throws Throwable {
4651	+	final int n = expensiveTests ? 900_000 : 10;
4652	+	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4653	+	CompletionStage minimal = neverCompleted.minimalCompletionStage();
4654	+	for (int i = 0; i < n; i++)
4655	+	assertTrue(minimal.toCompletableFuture().cancel(true));
4656	+	}
4657	+
4658	+	//     static <U> U join(CompletionStage<U> stage) {
4659	+	//         CompletableFuture<U> f = new CompletableFuture<>();
4660	+	//         stage.whenComplete((v, ex) -> {
4661	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4662	+	//         });
4663	+	//         return f.join();
4664	+	//     }
4665	+
4666	+	//     static <U> boolean isDone(CompletionStage<U> stage) {
4667	+	//         CompletableFuture<U> f = new CompletableFuture<>();
4668	+	//         stage.whenComplete((v, ex) -> {
4669	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4670	+	//         });
4671	+	//         return f.isDone();
4672	+	//     }
4673	+
4674	+	//     static <U> U join2(CompletionStage<U> stage) {
4675	+	//         return stage.toCompletableFuture().copy().join();
4676	+	//     }
4677	+
4678	+	//     static <U> boolean isDone2(CompletionStage<U> stage) {
4679	+	//         return stage.toCompletableFuture().copy().isDone();
4680	+	//     }
4681	+
4682	+	// For testing default implementations
4683	+	// Only non-default interface methods defined.
4684	+	static final class DelegatedCompletionStage<T> implements CompletionStage<T> {
4685	+	final CompletableFuture<T> cf;
4686	+	DelegatedCompletionStage(CompletableFuture<T> cf) { this.cf = cf; }
4687	+	public CompletableFuture<T> toCompletableFuture() {
4688	+	return cf; }
4689	+	public CompletionStage<Void> thenRun
4690	+	(Runnable action) {
4691	+	return cf.thenRun(action); }
4692	+	public CompletionStage<Void> thenRunAsync
4693	+	(Runnable action) {
4694	+	return cf.thenRunAsync(action); }
4695	+	public CompletionStage<Void> thenRunAsync
4696	+	(Runnable action,
4697	+	Executor executor) {
4698	+	return cf.thenRunAsync(action, executor); }
4699	+	public CompletionStage<Void> thenAccept
4700	+	(Consumer<? super T> action) {
4701	+	return cf.thenAccept(action); }
4702	+	public CompletionStage<Void> thenAcceptAsync
4703	+	(Consumer<? super T> action) {
4704	+	return cf.thenAcceptAsync(action); }
4705	+	public CompletionStage<Void> thenAcceptAsync
4706	+	(Consumer<? super T> action,
4707	+	Executor executor) {
4708	+	return cf.thenAcceptAsync(action, executor); }
4709	+	public <U> CompletionStage<U> thenApply
4710	+	(Function<? super T,? extends U> a) {
4711	+	return cf.thenApply(a); }
4712	+	public <U> CompletionStage<U> thenApplyAsync
4713	+	(Function<? super T,? extends U> fn) {
4714	+	return cf.thenApplyAsync(fn); }
4715	+	public <U> CompletionStage<U> thenApplyAsync
4716	+	(Function<? super T,? extends U> fn,
4717	+	Executor executor) {
4718	+	return cf.thenApplyAsync(fn, executor); }
4719	+	public <U,V> CompletionStage<V> thenCombine
4720	+	(CompletionStage<? extends U> other,
4721	+	BiFunction<? super T,? super U,? extends V> fn) {
4722	+	return cf.thenCombine(other, fn); }
4723	+	public <U,V> CompletionStage<V> thenCombineAsync
4724	+	(CompletionStage<? extends U> other,
4725	+	BiFunction<? super T,? super U,? extends V> fn) {
4726	+	return cf.thenCombineAsync(other, fn); }
4727	+	public <U,V> CompletionStage<V> thenCombineAsync
4728	+	(CompletionStage<? extends U> other,
4729	+	BiFunction<? super T,? super U,? extends V> fn,
4730	+	Executor executor) {
4731	+	return cf.thenCombineAsync(other, fn, executor); }
4732	+	public <U> CompletionStage<Void> thenAcceptBoth
4733	+	(CompletionStage<? extends U> other,
4734	+	BiConsumer<? super T, ? super U> action) {
4735	+	return cf.thenAcceptBoth(other, action); }
4736	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4737	+	(CompletionStage<? extends U> other,
4738	+	BiConsumer<? super T, ? super U> action) {
4739	+	return cf.thenAcceptBothAsync(other, action); }
4740	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4741	+	(CompletionStage<? extends U> other,
4742	+	BiConsumer<? super T, ? super U> action,
4743	+	Executor executor) {
4744	+	return cf.thenAcceptBothAsync(other, action, executor); }
4745	+	public CompletionStage<Void> runAfterBoth
4746	+	(CompletionStage<?> other,
4747	+	Runnable action) {
4748	+	return cf.runAfterBoth(other, action); }
4749	+	public CompletionStage<Void> runAfterBothAsync
4750	+	(CompletionStage<?> other,
4751	+	Runnable action) {
4752	+	return cf.runAfterBothAsync(other, action); }
4753	+	public CompletionStage<Void> runAfterBothAsync
4754	+	(CompletionStage<?> other,
4755	+	Runnable action,
4756	+	Executor executor) {
4757	+	return cf.runAfterBothAsync(other, action, executor); }
4758	+	public <U> CompletionStage<U> applyToEither
4759	+	(CompletionStage<? extends T> other,
4760	+	Function<? super T, U> fn) {
4761	+	return cf.applyToEither(other, fn); }
4762	+	public <U> CompletionStage<U> applyToEitherAsync
4763	+	(CompletionStage<? extends T> other,
4764	+	Function<? super T, U> fn) {
4765	+	return cf.applyToEitherAsync(other, fn); }
4766	+	public <U> CompletionStage<U> applyToEitherAsync
4767	+	(CompletionStage<? extends T> other,
4768	+	Function<? super T, U> fn,
4769	+	Executor executor) {
4770	+	return cf.applyToEitherAsync(other, fn, executor); }
4771	+	public CompletionStage<Void> acceptEither
4772	+	(CompletionStage<? extends T> other,
4773	+	Consumer<? super T> action) {
4774	+	return cf.acceptEither(other, action); }
4775	+	public CompletionStage<Void> acceptEitherAsync
4776	+	(CompletionStage<? extends T> other,
4777	+	Consumer<? super T> action) {
4778	+	return cf.acceptEitherAsync(other, action); }
4779	+	public CompletionStage<Void> acceptEitherAsync
4780	+	(CompletionStage<? extends T> other,
4781	+	Consumer<? super T> action,
4782	+	Executor executor) {
4783	+	return cf.acceptEitherAsync(other, action, executor); }
4784	+	public CompletionStage<Void> runAfterEither
4785	+	(CompletionStage<?> other,
4786	+	Runnable action) {
4787	+	return cf.runAfterEither(other, action); }
4788	+	public CompletionStage<Void> runAfterEitherAsync
4789	+	(CompletionStage<?> other,
4790	+	Runnable action) {
4791	+	return cf.runAfterEitherAsync(other, action); }
4792	+	public CompletionStage<Void> runAfterEitherAsync
4793	+	(CompletionStage<?> other,
4794	+	Runnable action,
4795	+	Executor executor) {
4796	+	return cf.runAfterEitherAsync(other, action, executor); }
4797	+	public <U> CompletionStage<U> thenCompose
4798	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4799	+	return cf.thenCompose(fn); }
4800	+	public <U> CompletionStage<U> thenComposeAsync
4801	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4802	+	return cf.thenComposeAsync(fn); }
4803	+	public <U> CompletionStage<U> thenComposeAsync
4804	+	(Function<? super T, ? extends CompletionStage<U>> fn,
4805	+	Executor executor) {
4806	+	return cf.thenComposeAsync(fn, executor); }
4807	+	public <U> CompletionStage<U> handle
4808	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4809	+	return cf.handle(fn); }
4810	+	public <U> CompletionStage<U> handleAsync
4811	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4812	+	return cf.handleAsync(fn); }
4813	+	public <U> CompletionStage<U> handleAsync
4814	+	(BiFunction<? super T, Throwable, ? extends U> fn,
4815	+	Executor executor) {
4816	+	return cf.handleAsync(fn, executor); }
4817	+	public CompletionStage<T> whenComplete
4818	+	(BiConsumer<? super T, ? super Throwable> action) {
4819	+	return cf.whenComplete(action); }
4820	+	public CompletionStage<T> whenCompleteAsync
4821	+	(BiConsumer<? super T, ? super Throwable> action) {
4822	+	return cf.whenCompleteAsync(action); }
4823	+	public CompletionStage<T> whenCompleteAsync
4824	+	(BiConsumer<? super T, ? super Throwable> action,
4825	+	Executor executor) {
4826	+	return cf.whenCompleteAsync(action, executor); }
4827	+	public CompletionStage<T> exceptionally
4828	+	(Function<Throwable, ? extends T> fn) {
4829	+	return cf.exceptionally(fn); }
4830	+	}
4831	+
4832	+	/**
4833	+	* default-implemented exceptionallyAsync action is not invoked when
4834	+	* source completes normally, and source result is propagated
4835	+	*/
4836	+	public void testDefaultExceptionallyAsync_normalCompletion() {
4837	+	for (boolean createIncomplete : new boolean[] { true, false })
4838	+	for (Integer v1 : new Integer[] { 1, null })
4839	+	{
4840	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4841	+	final DelegatedCompletionStage<Integer> d =
4842	+	new DelegatedCompletionStage<Integer>(f);
4843	+	if (!createIncomplete) assertTrue(f.complete(v1));
4844	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4845	+	((Throwable t) -> {
4846	+	threadFail("should not be called");
4847	+	return null;            // unreached
4848	+	});
4849	+	if (createIncomplete) assertTrue(f.complete(v1));
4850	+
4851	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4852	+	}}
4853	+
4854	+	/**
4855	+	* default-implemented exceptionallyAsync action completes with
4856	+	* function value on source exception
4857	+	*/
4858	+	public void testDefaultExceptionallyAsync_exceptionalCompletion() {
4859	+	for (boolean createIncomplete : new boolean[] { true, false })
4860	+	for (Integer v1 : new Integer[] { 1, null })
4861	+	{
4862	+	final AtomicInteger a = new AtomicInteger(0);
4863	+	final CFException ex = new CFException();
4864	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4865	+	final DelegatedCompletionStage<Integer> d =
4866	+	new DelegatedCompletionStage<Integer>(f);
4867	+	if (!createIncomplete) f.completeExceptionally(ex);
4868	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4869	+	((Throwable t) -> {
4870	+	threadAssertSame(t, ex);
4871	+	a.getAndIncrement();
4872	+	return v1;
4873	+	});
4874	+	if (createIncomplete) f.completeExceptionally(ex);
4875	+
4876	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4877	+	assertEquals(1, a.get());
4878	+	}}
4879	+
4880	+	/**
4881	+	* Under default implementation, if an "exceptionally action"
4882	+	* throws an exception, it completes exceptionally with that
4883	+	* exception
4884	+	*/
4885	+	public void testDefaultExceptionallyAsync_exceptionalCompletionActionFailed() {
4886	+	for (boolean createIncomplete : new boolean[] { true, false })
4887	+	{
4888	+	final AtomicInteger a = new AtomicInteger(0);
4889	+	final CFException ex1 = new CFException();
4890	+	final CFException ex2 = new CFException();
4891	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4892	+	final DelegatedCompletionStage<Integer> d =
4893	+	new DelegatedCompletionStage<Integer>(f);
4894	+	if (!createIncomplete) f.completeExceptionally(ex1);
4895	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4896	+	((Throwable t) -> {
4897	+	threadAssertSame(t, ex1);
4898	+	a.getAndIncrement();
4899	+	throw ex2;
4900	+	});
4901	+	if (createIncomplete) f.completeExceptionally(ex1);
4902	+
4903	+	checkCompletedWithWrappedException(g.toCompletableFuture(), ex2);
4904	+	checkCompletedExceptionally(f, ex1);
4905	+	checkCompletedExceptionally(d.toCompletableFuture(), ex1);
4906	+	assertEquals(1, a.get());
4907	+	}}
4908	+
4909	+	/**
4910	+	* default-implemented exceptionallyCompose result completes
4911	+	* normally after normal completion of source
4912	+	*/
4913	+	public void testDefaultExceptionallyCompose_normalCompletion() {
4914	+	for (boolean createIncomplete : new boolean[] { true, false })
4915	+	for (Integer v1 : new Integer[] { 1, null })
4916	+	{
4917	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4918	+	final ExceptionalCompletableFutureFunction r =
4919	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4920	+	final DelegatedCompletionStage<Integer> d =
4921	+	new DelegatedCompletionStage<Integer>(f);
4922	+	if (!createIncomplete) assertTrue(f.complete(v1));
4923	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4924	+	if (createIncomplete) assertTrue(f.complete(v1));
4925	+
4926	+	checkCompletedNormally(f, v1);
4927	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4928	+	r.assertNotInvoked();
4929	+	}}
4930	+
4931	+	/**
4932	+	* default-implemented exceptionallyCompose result completes
4933	+	* normally after exceptional completion of source
4934	+	*/
4935	+	public void testDefaultExceptionallyCompose_exceptionalCompletion() {
4936	+	for (boolean createIncomplete : new boolean[] { true, false })
4937	+	{
4938	+	final CFException ex = new CFException();
4939	+	final ExceptionalCompletableFutureFunction r =
4940	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4941	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4942	+	final DelegatedCompletionStage<Integer> d =
4943	+	new DelegatedCompletionStage<Integer>(f);
4944	+	if (!createIncomplete) f.completeExceptionally(ex);
4945	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4946	+	if (createIncomplete) f.completeExceptionally(ex);
4947	+
4948	+	checkCompletedExceptionally(f, ex);
4949	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
4950	+	r.assertInvoked();
4951	+	}}
4952	+
4953	+	/**
4954	+	* default-implemented exceptionallyCompose completes
4955	+	* exceptionally on exception if action does
4956	+	*/
4957	+	public void testDefaultExceptionallyCompose_actionFailed() {
4958	+	for (boolean createIncomplete : new boolean[] { true, false })
4959	+	for (Integer v1 : new Integer[] { 1, null })
4960	+	{
4961	+	final CFException ex = new CFException();
4962	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4963	+	final FailingExceptionalCompletableFutureFunction r
4964	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4965	+	final DelegatedCompletionStage<Integer> d =
4966	+	new DelegatedCompletionStage<Integer>(f);
4967	+	if (!createIncomplete) f.completeExceptionally(ex);
4968	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4969	+	if (createIncomplete) f.completeExceptionally(ex);
4970	+
4971	+	checkCompletedExceptionally(f, ex);
4972	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4973	+	r.assertInvoked();
4974	+	}}
4975	+
4976	+	/**
4977	+	* default-implemented exceptionallyComposeAsync result completes
4978	+	* normally after normal completion of source
4979	+	*/
4980	+	public void testDefaultExceptionallyComposeAsync_normalCompletion() {
4981	+	for (boolean createIncomplete : new boolean[] { true, false })
4982	+	for (Integer v1 : new Integer[] { 1, null })
4983	+	{
4984	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4985	+	final ExceptionalCompletableFutureFunction r =
4986	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4987	+	final DelegatedCompletionStage<Integer> d =
4988	+	new DelegatedCompletionStage<Integer>(f);
4989	+	if (!createIncomplete) assertTrue(f.complete(v1));
4990	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4991	+	if (createIncomplete) assertTrue(f.complete(v1));
4992	+
4993	+	checkCompletedNormally(f, v1);
4994	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4995	+	r.assertNotInvoked();
4996	+	}}
4997	+
4998	+	/**
4999	+	* default-implemented exceptionallyComposeAsync result completes
5000	+	* normally after exceptional completion of source
5001	+	*/
5002	+	public void testDefaultExceptionallyComposeAsync_exceptionalCompletion() {
5003	+	for (boolean createIncomplete : new boolean[] { true, false })
5004	+	{
5005	+	final CFException ex = new CFException();
5006	+	final ExceptionalCompletableFutureFunction r =
5007	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
5008	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5009	+	final DelegatedCompletionStage<Integer> d =
5010	+	new DelegatedCompletionStage<Integer>(f);
5011	+	if (!createIncomplete) f.completeExceptionally(ex);
5012	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5013	+	if (createIncomplete) f.completeExceptionally(ex);
5014	+
5015	+	checkCompletedExceptionally(f, ex);
5016	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5017	+	r.assertInvoked();
5018	+	}}
5019	+
5020	+	/**
5021	+	* default-implemented exceptionallyComposeAsync completes
5022	+	* exceptionally on exception if action does
5023	+	*/
5024	+	public void testDefaultExceptionallyComposeAsync_actionFailed() {
5025	+	for (boolean createIncomplete : new boolean[] { true, false })
5026	+	for (Integer v1 : new Integer[] { 1, null })
5027	+	{
5028	+	final CFException ex = new CFException();
5029	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5030	+	final FailingExceptionalCompletableFutureFunction r
5031	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
5032	+	final DelegatedCompletionStage<Integer> d =
5033	+	new DelegatedCompletionStage<Integer>(f);
5034	+	if (!createIncomplete) f.completeExceptionally(ex);
5035	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5036	+	if (createIncomplete) f.completeExceptionally(ex);
5037	+
5038	+	checkCompletedExceptionally(f, ex);
5039	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5040	+	r.assertInvoked();
5041	+	}}
5042	+
5043	+	/**
5044	+	* default-implemented exceptionallyComposeAsync result completes
5045	+	* normally after normal completion of source
5046	+	*/
5047	+	public void testDefaultExceptionallyComposeAsyncExecutor_normalCompletion() {
5048	+	for (boolean createIncomplete : new boolean[] { true, false })
5049	+	for (Integer v1 : new Integer[] { 1, null })
5050	+	{
5051	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5052	+	final ExceptionalCompletableFutureFunction r =
5053	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5054	+	final DelegatedCompletionStage<Integer> d =
5055	+	new DelegatedCompletionStage<Integer>(f);
5056	+	if (!createIncomplete) assertTrue(f.complete(v1));
5057	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5058	+	if (createIncomplete) assertTrue(f.complete(v1));
5059	+
5060	+	checkCompletedNormally(f, v1);
5061	+	checkCompletedNormally(g.toCompletableFuture(), v1);
5062	+	r.assertNotInvoked();
5063	+	}}
5064	+
5065	+	/**
5066	+	* default-implemented exceptionallyComposeAsync result completes
5067	+	* normally after exceptional completion of source
5068	+	*/
5069	+	public void testDefaultExceptionallyComposeAsyncExecutor_exceptionalCompletion() {
5070	+	for (boolean createIncomplete : new boolean[] { true, false })
5071	+	{
5072	+	final CFException ex = new CFException();
5073	+	final ExceptionalCompletableFutureFunction r =
5074	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5075	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5076	+	final DelegatedCompletionStage<Integer> d =
5077	+	new DelegatedCompletionStage<Integer>(f);
5078	+	if (!createIncomplete) f.completeExceptionally(ex);
5079	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5080	+	if (createIncomplete) f.completeExceptionally(ex);
5081	+
5082	+	checkCompletedExceptionally(f, ex);
5083	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5084	+	r.assertInvoked();
5085	+	}}
5086	+
5087	+	/**
5088	+	* default-implemented exceptionallyComposeAsync completes
5089	+	* exceptionally on exception if action does
5090	+	*/
5091	+	public void testDefaultExceptionallyComposeAsyncExecutor_actionFailed() {
5092	+	for (boolean createIncomplete : new boolean[] { true, false })
5093	+	for (Integer v1 : new Integer[] { 1, null })
5094	+	{
5095	+	final CFException ex = new CFException();
5096	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5097	+	final FailingExceptionalCompletableFutureFunction r
5098	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5099	+	final DelegatedCompletionStage<Integer> d =
5100	+	new DelegatedCompletionStage<Integer>(f);
5101	+	if (!createIncomplete) f.completeExceptionally(ex);
5102	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5103	+	if (createIncomplete) f.completeExceptionally(ex);
5104	+
5105	+	checkCompletedExceptionally(f, ex);
5106	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5107	+	r.assertInvoked();
5108	+	}}
5109	+
5110		}

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