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

Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.91 by jsr166, Tue Jun 17 20:34:18 2014 UTC vs.
Revision 1.208 by jsr166, Sun Sep 23 15:29:31 2018 UTC

#	Line 5 | Line 5
5		* http://creativecommons.org/publicdomain/zero/1.0/
6		*/
7
8	<	import junit.framework.*;
8	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
9	>	import static java.util.concurrent.TimeUnit.SECONDS;
10	>	import static java.util.concurrent.CompletableFuture.completedFuture;
11	>	import static java.util.concurrent.CompletableFuture.failedFuture;
12	>
13	>	import java.lang.reflect.Method;
14	>	import java.lang.reflect.Modifier;
15	>
16	>	import java.util.stream.Collectors;
17	>	import java.util.stream.Stream;
18	>
19	>	import java.util.ArrayList;
20	>	import java.util.Arrays;
21	>	import java.util.List;
22	>	import java.util.Objects;
23	>	import java.util.Set;
24		import java.util.concurrent.Callable;
10	–	import java.util.concurrent.Executor;
11	–	import java.util.concurrent.ExecutorService;
12	–	import java.util.concurrent.Executors;
25		import java.util.concurrent.CancellationException;
14	–	import java.util.concurrent.CountDownLatch;
15	–	import java.util.concurrent.ExecutionException;
16	–	import java.util.concurrent.Future;
26		import java.util.concurrent.CompletableFuture;
27		import java.util.concurrent.CompletionException;
28		import java.util.concurrent.CompletionStage;
29	+	import java.util.concurrent.ExecutionException;
30	+	import java.util.concurrent.Executor;
31		import java.util.concurrent.ForkJoinPool;
32		import java.util.concurrent.ForkJoinTask;
33	+	import java.util.concurrent.RejectedExecutionException;
34		import java.util.concurrent.TimeoutException;
35		import java.util.concurrent.atomic.AtomicInteger;
36	<	import static java.util.concurrent.TimeUnit.MILLISECONDS;
25	<	import static java.util.concurrent.TimeUnit.SECONDS;
26	<	import java.util.*;
27	<	import java.util.function.Supplier;
28	<	import java.util.function.Consumer;
36	>	import java.util.concurrent.atomic.AtomicReference;
37		import java.util.function.BiConsumer;
30	–	import java.util.function.Function;
38		import java.util.function.BiFunction;
39	+	import java.util.function.Consumer;
40	+	import java.util.function.Function;
41	+	import java.util.function.Predicate;
42	+	import java.util.function.Supplier;
43	+
44	+	import junit.framework.Test;
45	+	import junit.framework.TestSuite;
46
47		public class CompletableFutureTest extends JSR166TestCase {
48
49		public static void main(String[] args) {
50	<	junit.textui.TestRunner.run(suite());
50	>	main(suite(), args);
51		}
52		public static Test suite() {
53		return new TestSuite(CompletableFutureTest.class);
#	Line 44 | Line 58 | public class CompletableFutureTest exten
58		void checkIncomplete(CompletableFuture<?> f) {
59		assertFalse(f.isDone());
60		assertFalse(f.isCancelled());
61	<	assertTrue(f.toString().contains("[Not completed]"));
61	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
62	>
63	>	Object result = null;
64		try {
65	<	assertNull(f.getNow(null));
65	>	result = f.getNow(null);
66		} catch (Throwable fail) { threadUnexpectedException(fail); }
67	+	assertNull(result);
68	+
69		try {
70	<	f.get(0L, SECONDS);
70	>	f.get(randomExpiredTimeout(), randomTimeUnit());
71		shouldThrow();
72		}
73		catch (TimeoutException success) {}
74		catch (Throwable fail) { threadUnexpectedException(fail); }
75		}
76
77	<	<T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
78	<	try {
79	<	assertEquals(value, f.get(LONG_DELAY_MS, MILLISECONDS));
80	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
81	<	try {
82	<	assertEquals(value, f.join());
83	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
66	<	try {
67	<	assertEquals(value, f.getNow(null));
68	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
77	>	<T> void checkCompletedNormally(CompletableFuture<T> f, T expectedValue) {
78	>	checkTimedGet(f, expectedValue);
79	>
80	>	assertEquals(expectedValue, f.join());
81	>	assertEquals(expectedValue, f.getNow(null));
82	>
83	>	T result = null;
84		try {
85	<	assertEquals(value, f.get());
85	>	result = f.get();
86		} catch (Throwable fail) { threadUnexpectedException(fail); }
87	+	assertEquals(expectedValue, result);
88	+
89		assertTrue(f.isDone());
90		assertFalse(f.isCancelled());
91		assertFalse(f.isCompletedExceptionally());
92	<	assertTrue(f.toString().contains("[Completed normally]"));
92	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
93		}
94
95	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
96	<	try {
97	<	f.get(LONG_DELAY_MS, MILLISECONDS);
98	<	shouldThrow();
99	<	} catch (ExecutionException success) {
100	<	assertTrue(success.getCause() instanceof CFException);
101	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
102	<	try {
86	<	f.join();
87	<	shouldThrow();
88	<	} catch (CompletionException success) {
89	<	assertTrue(success.getCause() instanceof CFException);
90	<	}
91	<	try {
92	<	f.getNow(null);
93	<	shouldThrow();
94	<	} catch (CompletionException success) {
95	<	assertTrue(success.getCause() instanceof CFException);
96	<	}
97	<	try {
98	<	f.get();
99	<	shouldThrow();
100	<	} catch (ExecutionException success) {
101	<	assertTrue(success.getCause() instanceof CFException);
102	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
103	<	assertTrue(f.isDone());
104	<	assertFalse(f.isCancelled());
105	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
95	>	/**
96	>	* Returns the "raw" internal exceptional completion of f,
97	>	* without any additional wrapping with CompletionException.
98	>	*/
99	>	Throwable exceptionalCompletion(CompletableFuture<?> f) {
100	>	// handle (and whenComplete and exceptionally) can distinguish
101	>	// between "direct" and "wrapped" exceptional completion
102	>	return f.handle((u, t) -> t).join();
103		}
104
105	<	<U> void checkCompletedExceptionallyWithRootCause(CompletableFuture<U> f,
106	<	Throwable ex) {
105	>	void checkCompletedExceptionally(CompletableFuture<?> f,
106	>	boolean wrapped,
107	>	Consumer<Throwable> checker) {
108	>	Throwable cause = exceptionalCompletion(f);
109	>	if (wrapped) {
110	>	assertTrue(cause instanceof CompletionException);
111	>	cause = cause.getCause();
112	>	}
113	>	checker.accept(cause);
114	>
115	>	long startTime = System.nanoTime();
116		try {
117		f.get(LONG_DELAY_MS, MILLISECONDS);
118		shouldThrow();
119		} catch (ExecutionException success) {
120	<	assertSame(ex, success.getCause());
120	>	assertSame(cause, success.getCause());
121		} catch (Throwable fail) { threadUnexpectedException(fail); }
122	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
123	+
124		try {
125		f.join();
126		shouldThrow();
127		} catch (CompletionException success) {
128	<	assertSame(ex, success.getCause());
129	<	}
128	>	assertSame(cause, success.getCause());
129	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
130	>
131		try {
132		f.getNow(null);
133		shouldThrow();
134		} catch (CompletionException success) {
135	<	assertSame(ex, success.getCause());
136	<	}
135	>	assertSame(cause, success.getCause());
136	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
137	>
138		try {
139		f.get();
140		shouldThrow();
141		} catch (ExecutionException success) {
142	<	assertSame(ex, success.getCause());
142	>	assertSame(cause, success.getCause());
143		} catch (Throwable fail) { threadUnexpectedException(fail); }
144
135	–	assertTrue(f.isDone());
145		assertFalse(f.isCancelled());
146	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
146	>	assertTrue(f.isDone());
147	>	assertTrue(f.isCompletedExceptionally());
148	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
149		}
150
151	<	<U> void checkCompletedWithWrappedException(CompletableFuture<U> f,
152	<	Throwable ex) {
153	<	checkCompletedExceptionallyWithRootCause(f, ex);
143	<	try {
144	<	CompletableFuture<Throwable> spy = f.handle
145	<	((U u, Throwable t) -> t);
146	<	assertTrue(spy.join() instanceof CompletionException);
147	<	assertSame(ex, spy.join().getCause());
148	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
151	>	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
152	>	checkCompletedExceptionally(f, true,
153	>	t -> assertTrue(t instanceof CFException));
154		}
155
156	<	<U> void checkCompletedExceptionally(CompletableFuture<U> f, Throwable ex) {
157	<	checkCompletedExceptionallyWithRootCause(f, ex);
158	<	try {
159	<	CompletableFuture<Throwable> spy = f.handle
160	<	((U u, Throwable t) -> t);
161	<	assertSame(ex, spy.join());
162	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
156	>	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
157	>	checkCompletedExceptionally(f, true,
158	>	t -> assertTrue(t instanceof CancellationException));
159	>	}
160	>
161	>	void checkCompletedWithTimeoutException(CompletableFuture<?> f) {
162	>	checkCompletedExceptionally(f, false,
163	>	t -> assertTrue(t instanceof TimeoutException));
164	>	}
165	>
166	>	void checkCompletedWithWrappedException(CompletableFuture<?> f,
167	>	Throwable ex) {
168	>	checkCompletedExceptionally(f, true, t -> assertSame(t, ex));
169	>	}
170	>
171	>	void checkCompletedExceptionally(CompletableFuture<?> f, Throwable ex) {
172	>	checkCompletedExceptionally(f, false, t -> assertSame(t, ex));
173		}
174
175		void checkCancelled(CompletableFuture<?> f) {
176	+	long startTime = System.nanoTime();
177		try {
178		f.get(LONG_DELAY_MS, MILLISECONDS);
179		shouldThrow();
180		} catch (CancellationException success) {
181		} catch (Throwable fail) { threadUnexpectedException(fail); }
182	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
183	+
184		try {
185		f.join();
186		shouldThrow();
#	Line 176 | Line 194 | public class CompletableFutureTest exten
194		shouldThrow();
195		} catch (CancellationException success) {
196		} catch (Throwable fail) { threadUnexpectedException(fail); }
179	–	assertTrue(f.isDone());
180	–	assertTrue(f.isCompletedExceptionally());
181	–	assertTrue(f.isCancelled());
182	–	assertTrue(f.toString().contains("[Completed exceptionally]"));
183	–	}
197
198	<	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
199	<	try {
187	<	f.get(LONG_DELAY_MS, MILLISECONDS);
188	<	shouldThrow();
189	<	} catch (ExecutionException success) {
190	<	assertTrue(success.getCause() instanceof CancellationException);
191	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
192	<	try {
193	<	f.join();
194	<	shouldThrow();
195	<	} catch (CompletionException success) {
196	<	assertTrue(success.getCause() instanceof CancellationException);
197	<	}
198	<	try {
199	<	f.getNow(null);
200	<	shouldThrow();
201	<	} catch (CompletionException success) {
202	<	assertTrue(success.getCause() instanceof CancellationException);
203	<	}
204	<	try {
205	<	f.get();
206	<	shouldThrow();
207	<	} catch (ExecutionException success) {
208	<	assertTrue(success.getCause() instanceof CancellationException);
209	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
198	>	assertTrue(exceptionalCompletion(f) instanceof CancellationException);
199	>
200		assertTrue(f.isDone());
211	–	assertFalse(f.isCancelled());
201		assertTrue(f.isCompletedExceptionally());
202	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
202	>	assertTrue(f.isCancelled());
203	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
204		}
205
206		/**
#	Line 257 | Line 247 | public class CompletableFutureTest exten
247		{
248		CompletableFuture<Integer> f = new CompletableFuture<>();
249		checkIncomplete(f);
250	<	assertTrue(f.cancel(true));
251	<	assertTrue(f.cancel(true));
250	>	assertTrue(f.cancel(mayInterruptIfRunning));
251	>	assertTrue(f.cancel(mayInterruptIfRunning));
252	>	assertTrue(f.cancel(!mayInterruptIfRunning));
253		checkCancelled(f);
254		}}
255
#	Line 308 | Line 299 | public class CompletableFutureTest exten
299		}
300
301		f = new CompletableFuture<>();
302	<	f.completeExceptionally(ex = new CFException());
302	>	f.completeExceptionally(new CFException());
303		f.obtrudeValue(v1);
304		checkCompletedNormally(f, v1);
305		f.obtrudeException(ex = new CFException());
#	Line 345 | Line 336 | public class CompletableFutureTest exten
336		/**
337		* toString indicates current completion state
338		*/
339	<	public void testToString() {
340	<	CompletableFuture<String> f;
341	<
342	<	f = new CompletableFuture<String>();
343	<	assertTrue(f.toString().contains("[Not completed]"));
339	>	public void testToString_incomplete() {
340	>	CompletableFuture<String> f = new CompletableFuture<>();
341	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
342	>	if (testImplementationDetails)
343	>	assertEquals(identityString(f) + "[Not completed]",
344	>	f.toString());
345	>	}
346
347	+	public void testToString_normal() {
348	+	CompletableFuture<String> f = new CompletableFuture<>();
349		assertTrue(f.complete("foo"));
350	<	assertTrue(f.toString().contains("[Completed normally]"));
350	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
351	>	if (testImplementationDetails)
352	>	assertEquals(identityString(f) + "[Completed normally]",
353	>	f.toString());
354	>	}
355
356	<	f = new CompletableFuture<String>();
356	>	public void testToString_exception() {
357	>	CompletableFuture<String> f = new CompletableFuture<>();
358		assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
359	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
359	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
360	>	if (testImplementationDetails)
361	>	assertTrue(f.toString().startsWith(
362	>	identityString(f) + "[Completed exceptionally: "));
363	>	}
364
365	+	public void testToString_cancelled() {
366		for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
367	<	f = new CompletableFuture<String>();
367	>	CompletableFuture<String> f = new CompletableFuture<>();
368		assertTrue(f.cancel(mayInterruptIfRunning));
369	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
369	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
370	>	if (testImplementationDetails)
371	>	assertTrue(f.toString().startsWith(
372	>	identityString(f) + "[Completed exceptionally: "));
373		}
374		}
375
#	Line 373 | Line 381 | public class CompletableFutureTest exten
381		checkCompletedNormally(f, "test");
382		}
383
384	<	abstract class CheckedAction {
384	>	abstract static class CheckedAction {
385		int invocationCount = 0;
386		final ExecutionMode m;
387		CheckedAction(ExecutionMode m) { this.m = m; }
#	Line 385 | Line 393 | public class CompletableFutureTest exten
393		void assertInvoked() { assertEquals(1, invocationCount); }
394		}
395
396	<	abstract class CheckedIntegerAction extends CheckedAction {
396	>	abstract static class CheckedIntegerAction extends CheckedAction {
397		Integer value;
398		CheckedIntegerAction(ExecutionMode m) { super(m); }
399		void assertValue(Integer expected) {
#	Line 394 | Line 402 | public class CompletableFutureTest exten
402		}
403		}
404
405	<	class IntegerSupplier extends CheckedAction
405	>	static class IntegerSupplier extends CheckedAction
406		implements Supplier<Integer>
407		{
408		final Integer value;
#	Line 413 | Line 421 | public class CompletableFutureTest exten
421		return (x == null) ? null : x + 1;
422		}
423
424	<	class NoopConsumer extends CheckedIntegerAction
424	>	static class NoopConsumer extends CheckedIntegerAction
425		implements Consumer<Integer>
426		{
427		NoopConsumer(ExecutionMode m) { super(m); }
#	Line 423 | Line 431 | public class CompletableFutureTest exten
431		}
432		}
433
434	<	class IncFunction extends CheckedIntegerAction
434	>	static class IncFunction extends CheckedIntegerAction
435		implements Function<Integer,Integer>
436		{
437		IncFunction(ExecutionMode m) { super(m); }
#	Line 441 | Line 449 | public class CompletableFutureTest exten
449		- ((y == null) ? 99 : y.intValue());
450		}
451
452	<	class SubtractAction extends CheckedIntegerAction
452	>	static class SubtractAction extends CheckedIntegerAction
453		implements BiConsumer<Integer, Integer>
454		{
455		SubtractAction(ExecutionMode m) { super(m); }
#	Line 451 | Line 459 | public class CompletableFutureTest exten
459		}
460		}
461
462	<	class SubtractFunction extends CheckedIntegerAction
462	>	static class SubtractFunction extends CheckedIntegerAction
463		implements BiFunction<Integer, Integer, Integer>
464		{
465		SubtractFunction(ExecutionMode m) { super(m); }
#	Line 461 | Line 469 | public class CompletableFutureTest exten
469		}
470		}
471
472	<	class Noop extends CheckedAction implements Runnable {
472	>	static class Noop extends CheckedAction implements Runnable {
473		Noop(ExecutionMode m) { super(m); }
474		public void run() {
475		invoked();
476		}
477		}
478
479	<	class FailingSupplier extends CheckedAction
479	>	static class FailingSupplier extends CheckedAction
480		implements Supplier<Integer>
481		{
482	<	FailingSupplier(ExecutionMode m) { super(m); }
482	>	final CFException ex;
483	>	FailingSupplier(ExecutionMode m) { super(m); ex = new CFException(); }
484		public Integer get() {
485		invoked();
486	<	throw new CFException();
486	>	throw ex;
487		}
488		}
489
490	<	class FailingConsumer extends CheckedIntegerAction
490	>	static class FailingConsumer extends CheckedIntegerAction
491		implements Consumer<Integer>
492		{
493	<	FailingConsumer(ExecutionMode m) { super(m); }
493	>	final CFException ex;
494	>	FailingConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
495		public void accept(Integer x) {
496		invoked();
497		value = x;
498	<	throw new CFException();
498	>	throw ex;
499		}
500		}
501
502	<	class FailingBiConsumer extends CheckedIntegerAction
502	>	static class FailingBiConsumer extends CheckedIntegerAction
503		implements BiConsumer<Integer, Integer>
504		{
505	<	FailingBiConsumer(ExecutionMode m) { super(m); }
505	>	final CFException ex;
506	>	FailingBiConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
507		public void accept(Integer x, Integer y) {
508		invoked();
509		value = subtract(x, y);
510	<	throw new CFException();
510	>	throw ex;
511		}
512		}
513
514	<	class FailingFunction extends CheckedIntegerAction
514	>	static class FailingFunction extends CheckedIntegerAction
515		implements Function<Integer, Integer>
516		{
517	<	FailingFunction(ExecutionMode m) { super(m); }
517	>	final CFException ex;
518	>	FailingFunction(ExecutionMode m) { super(m); ex = new CFException(); }
519		public Integer apply(Integer x) {
520		invoked();
521		value = x;
522	<	throw new CFException();
522	>	throw ex;
523		}
524		}
525
526	<	class FailingBiFunction extends CheckedIntegerAction
526	>	static class FailingBiFunction extends CheckedIntegerAction
527		implements BiFunction<Integer, Integer, Integer>
528		{
529	<	FailingBiFunction(ExecutionMode m) { super(m); }
529	>	final CFException ex;
530	>	FailingBiFunction(ExecutionMode m) { super(m); ex = new CFException(); }
531		public Integer apply(Integer x, Integer y) {
532		invoked();
533		value = subtract(x, y);
534	<	throw new CFException();
534	>	throw ex;
535		}
536		}
537
538	<	class FailingRunnable extends CheckedAction implements Runnable {
539	<	FailingRunnable(ExecutionMode m) { super(m); }
538	>	static class FailingRunnable extends CheckedAction implements Runnable {
539	>	final CFException ex;
540	>	FailingRunnable(ExecutionMode m) { super(m); ex = new CFException(); }
541		public void run() {
542		invoked();
543	<	throw new CFException();
543	>	throw ex;
544		}
545		}
546
547	<
534	<	class CompletableFutureInc extends CheckedIntegerAction
547	>	static class CompletableFutureInc extends CheckedIntegerAction
548		implements Function<Integer, CompletableFuture<Integer>>
549		{
550		CompletableFutureInc(ExecutionMode m) { super(m); }
551		public CompletableFuture<Integer> apply(Integer x) {
552		invoked();
553		value = x;
554	<	CompletableFuture<Integer> f = new CompletableFuture<>();
542	<	assertTrue(f.complete(inc(x)));
543	<	return f;
554	>	return CompletableFuture.completedFuture(inc(x));
555		}
556		}
557
558	<	class FailingCompletableFutureFunction extends CheckedIntegerAction
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	>	static class FailingCompletableFutureFunction extends CheckedIntegerAction
580		implements Function<Integer, CompletableFuture<Integer>>
581		{
582	<	FailingCompletableFutureFunction(ExecutionMode m) { super(m); }
582	>	final CFException ex;
583	>	FailingCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
584		public CompletableFuture<Integer> apply(Integer x) {
585		invoked();
586		value = x;
587	<	throw new CFException();
587	>	throw ex;
588	>	}
589	>	}
590	>
591	>	static class CountingRejectingExecutor implements Executor {
592	>	final RejectedExecutionException ex = new RejectedExecutionException();
593	>	final AtomicInteger count = new AtomicInteger(0);
594	>	public void execute(Runnable r) {
595	>	count.getAndIncrement();
596	>	throw ex;
597		}
598		}
599
#	Line 569 | Line 611 | public class CompletableFutureTest exten
611		}
612		}
613
614	+	static final boolean defaultExecutorIsCommonPool
615	+	= ForkJoinPool.getCommonPoolParallelism() > 1;
616	+
617		/**
618		* Permits the testing of parallel code for the 3 different
619		* execution modes without copy/pasting all the test methods.
620		*/
621		enum ExecutionMode {
622	<	DEFAULT {
622	>	SYNC {
623		public void checkExecutionMode() {
624		assertFalse(ThreadExecutor.startedCurrentThread());
625		assertNull(ForkJoinTask.getPool());
#	Line 646 | Line 691 | public class CompletableFutureTest exten
691		Function<? super T,U> a) {
692		return f.applyToEither(g, a);
693		}
694	+	public <T> CompletableFuture<T> exceptionally
695	+	(CompletableFuture<T> f,
696	+	Function<Throwable, ? extends T> fn) {
697	+	return f.exceptionally(fn);
698	+	}
699	+	public <T> CompletableFuture<T> exceptionallyCompose
700	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
701	+	return f.exceptionallyCompose(fn);
702	+	}
703		},
650	–
704		ASYNC {
705		public void checkExecutionMode() {
706	<	assertSame(ForkJoinPool.commonPool(),
707	<	ForkJoinTask.getPool());
706	>	assertEquals(defaultExecutorIsCommonPool,
707	>	(ForkJoinPool.commonPool() == ForkJoinTask.getPool()));
708		}
709		public CompletableFuture<Void> runAsync(Runnable a) {
710		return CompletableFuture.runAsync(a);
#	Line 720 | Line 773 | public class CompletableFutureTest exten
773		Function<? super T,U> a) {
774		return f.applyToEitherAsync(g, a);
775		}
776	+	public <T> CompletableFuture<T> exceptionally
777	+	(CompletableFuture<T> f,
778	+	Function<Throwable, ? extends T> fn) {
779	+	return f.exceptionallyAsync(fn);
780	+	}
781	+
782	+	public <T> CompletableFuture<T> exceptionallyCompose
783	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
784	+	return f.exceptionallyComposeAsync(fn);
785	+	}
786	+
787		},
788
789		EXECUTOR {
#	Line 793 | Line 857 | public class CompletableFutureTest exten
857		Function<? super T,U> a) {
858		return f.applyToEitherAsync(g, a, new ThreadExecutor());
859		}
860	+	public <T> CompletableFuture<T> exceptionally
861	+	(CompletableFuture<T> f,
862	+	Function<Throwable, ? extends T> fn) {
863	+	return f.exceptionallyAsync(fn, new ThreadExecutor());
864	+	}
865	+	public <T> CompletableFuture<T> exceptionallyCompose
866	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
867	+	return f.exceptionallyComposeAsync(fn, new ThreadExecutor());
868	+	}
869	+
870		};
871
872		public abstract void checkExecutionMode();
#	Line 835 | Line 909 | public class CompletableFutureTest exten
909		(CompletableFuture<T> f,
910		CompletionStage<? extends T> g,
911		Function<? super T,U> a);
912	+	public abstract <T> CompletableFuture<T> exceptionally
913	+	(CompletableFuture<T> f,
914	+	Function<Throwable, ? extends T> fn);
915	+	public abstract <T> CompletableFuture<T> exceptionallyCompose
916	+	(CompletableFuture<T> f,
917	+	Function<Throwable, ? extends CompletionStage<T>> fn);
918		}
919
920		/**
#	Line 842 | Line 922 | public class CompletableFutureTest exten
922		* normally, and source result is propagated
923		*/
924		public void testExceptionally_normalCompletion() {
925	+	for (ExecutionMode m : ExecutionMode.values())
926		for (boolean createIncomplete : new boolean[] { true, false })
927		for (Integer v1 : new Integer[] { 1, null })
928		{
848	–	final AtomicInteger a = new AtomicInteger(0);
929		final CompletableFuture<Integer> f = new CompletableFuture<>();
930		if (!createIncomplete) assertTrue(f.complete(v1));
931	<	final CompletableFuture<Integer> g = f.exceptionally
932	<	((Throwable t) -> {
933	<	// Should not be called
934	<	a.getAndIncrement();
855	<	throw new AssertionError();
931	>	final CompletableFuture<Integer> g = m.exceptionally
932	>	(f, (Throwable t) -> {
933	>	threadFail("should not be called");
934	>	return null;            // unreached
935		});
936		if (createIncomplete) assertTrue(f.complete(v1));
937
938		checkCompletedNormally(g, v1);
939		checkCompletedNormally(f, v1);
861	–	assertEquals(0, a.get());
940		}}
941
942		/**
#	Line 866 | Line 944 | public class CompletableFutureTest exten
944		* exception
945		*/
946		public void testExceptionally_exceptionalCompletion() {
947	+	for (ExecutionMode m : ExecutionMode.values())
948		for (boolean createIncomplete : new boolean[] { true, false })
949		for (Integer v1 : new Integer[] { 1, null })
950		{
#	Line 873 | Line 952 | public class CompletableFutureTest exten
952		final CFException ex = new CFException();
953		final CompletableFuture<Integer> f = new CompletableFuture<>();
954		if (!createIncomplete) f.completeExceptionally(ex);
955	<	final CompletableFuture<Integer> g = f.exceptionally
956	<	((Throwable t) -> {
957	<	ExecutionMode.DEFAULT.checkExecutionMode();
955	>	final CompletableFuture<Integer> g = m.exceptionally
956	>	(f, (Throwable t) -> {
957	>	m.checkExecutionMode();
958		threadAssertSame(t, ex);
959		a.getAndIncrement();
960		return v1;
#	Line 886 | Line 965 | public class CompletableFutureTest exten
965		assertEquals(1, a.get());
966		}}
967
968	+	/**
969	+	* If an "exceptionally action" throws an exception, it completes
970	+	* exceptionally with that exception
971	+	*/
972		public void testExceptionally_exceptionalCompletionActionFailed() {
973	+	for (ExecutionMode m : ExecutionMode.values())
974		for (boolean createIncomplete : new boolean[] { true, false })
891	–	for (Integer v1 : new Integer[] { 1, null })
975		{
976		final AtomicInteger a = new AtomicInteger(0);
977		final CFException ex1 = new CFException();
978		final CFException ex2 = new CFException();
979		final CompletableFuture<Integer> f = new CompletableFuture<>();
980		if (!createIncomplete) f.completeExceptionally(ex1);
981	<	final CompletableFuture<Integer> g = f.exceptionally
982	<	((Throwable t) -> {
983	<	ExecutionMode.DEFAULT.checkExecutionMode();
981	>	final CompletableFuture<Integer> g = m.exceptionally
982	>	(f, (Throwable t) -> {
983	>	m.checkExecutionMode();
984		threadAssertSame(t, ex1);
985		a.getAndIncrement();
986		throw ex2;
#	Line 905 | Line 988 | public class CompletableFutureTest exten
988		if (createIncomplete) f.completeExceptionally(ex1);
989
990		checkCompletedWithWrappedException(g, ex2);
991	+	checkCompletedExceptionally(f, ex1);
992		assertEquals(1, a.get());
993		}}
994
#	Line 912 | Line 996 | public class CompletableFutureTest exten
996		* whenComplete action executes on normal completion, propagating
997		* source result.
998		*/
999	<	public void testWhenComplete_normalCompletion1() {
999	>	public void testWhenComplete_normalCompletion() {
1000		for (ExecutionMode m : ExecutionMode.values())
1001		for (boolean createIncomplete : new boolean[] { true, false })
1002		for (Integer v1 : new Integer[] { 1, null })
#	Line 922 | Line 1006 | public class CompletableFutureTest exten
1006		if (!createIncomplete) assertTrue(f.complete(v1));
1007		final CompletableFuture<Integer> g = m.whenComplete
1008		(f,
1009	<	(Integer x, Throwable t) -> {
1009	>	(Integer result, Throwable t) -> {
1010		m.checkExecutionMode();
1011	<	threadAssertSame(x, v1);
1011	>	threadAssertSame(result, v1);
1012		threadAssertNull(t);
1013		a.getAndIncrement();
1014		});
#	Line 942 | Line 1026 | public class CompletableFutureTest exten
1026		public void testWhenComplete_exceptionalCompletion() {
1027		for (ExecutionMode m : ExecutionMode.values())
1028		for (boolean createIncomplete : new boolean[] { true, false })
945	–	for (Integer v1 : new Integer[] { 1, null })
1029		{
1030		final AtomicInteger a = new AtomicInteger(0);
1031		final CFException ex = new CFException();
#	Line 950 | Line 1033 | public class CompletableFutureTest exten
1033		if (!createIncomplete) f.completeExceptionally(ex);
1034		final CompletableFuture<Integer> g = m.whenComplete
1035		(f,
1036	<	(Integer x, Throwable t) -> {
1036	>	(Integer result, Throwable t) -> {
1037		m.checkExecutionMode();
1038	<	threadAssertNull(x);
1038	>	threadAssertNull(result);
1039		threadAssertSame(t, ex);
1040		a.getAndIncrement();
1041		});
#	Line 977 | Line 1060 | public class CompletableFutureTest exten
1060		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1061		final CompletableFuture<Integer> g = m.whenComplete
1062		(f,
1063	<	(Integer x, Throwable t) -> {
1063	>	(Integer result, Throwable t) -> {
1064		m.checkExecutionMode();
1065	<	threadAssertNull(x);
1065	>	threadAssertNull(result);
1066		threadAssertTrue(t instanceof CancellationException);
1067		a.getAndIncrement();
1068		});
#	Line 994 | Line 1077 | public class CompletableFutureTest exten
1077		* If a whenComplete action throws an exception when triggered by
1078		* a normal completion, it completes exceptionally
1079		*/
1080	<	public void testWhenComplete_actionFailed() {
1080	>	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
1081		for (boolean createIncomplete : new boolean[] { true, false })
1082		for (ExecutionMode m : ExecutionMode.values())
1083		for (Integer v1 : new Integer[] { 1, null })
#	Line 1005 | Line 1088 | public class CompletableFutureTest exten
1088		if (!createIncomplete) assertTrue(f.complete(v1));
1089		final CompletableFuture<Integer> g = m.whenComplete
1090		(f,
1091	<	(Integer x, Throwable t) -> {
1091	>	(Integer result, Throwable t) -> {
1092		m.checkExecutionMode();
1093	<	threadAssertSame(x, v1);
1093	>	threadAssertSame(result, v1);
1094		threadAssertNull(t);
1095		a.getAndIncrement();
1096		throw ex;
#	Line 1022 | Line 1105 | public class CompletableFutureTest exten
1105		/**
1106		* If a whenComplete action throws an exception when triggered by
1107		* a source completion that also throws an exception, the source
1108	<	* exception takes precedence.
1108	>	* exception takes precedence (unlike handle)
1109		*/
1110	<	public void testWhenComplete_actionFailedSourceFailed() {
1110	>	public void testWhenComplete_sourceFailedActionFailed() {
1111		for (boolean createIncomplete : new boolean[] { true, false })
1112		for (ExecutionMode m : ExecutionMode.values())
1030	–	for (Integer v1 : new Integer[] { 1, null })
1113		{
1114		final AtomicInteger a = new AtomicInteger(0);
1115		final CFException ex1 = new CFException();
#	Line 1037 | Line 1119 | public class CompletableFutureTest exten
1119		if (!createIncomplete) f.completeExceptionally(ex1);
1120		final CompletableFuture<Integer> g = m.whenComplete
1121		(f,
1122	<	(Integer x, Throwable t) -> {
1122	>	(Integer result, Throwable t) -> {
1123		m.checkExecutionMode();
1124		threadAssertSame(t, ex1);
1125	<	threadAssertNull(x);
1125	>	threadAssertNull(result);
1126		a.getAndIncrement();
1127		throw ex2;
1128		});
#	Line 1048 | Line 1130 | public class CompletableFutureTest exten
1130
1131		checkCompletedWithWrappedException(g, ex1);
1132		checkCompletedExceptionally(f, ex1);
1133	+	if (testImplementationDetails) {
1134	+	assertEquals(1, ex1.getSuppressed().length);
1135	+	assertSame(ex2, ex1.getSuppressed()[0]);
1136	+	}
1137		assertEquals(1, a.get());
1138		}}
1139
#	Line 1065 | Line 1151 | public class CompletableFutureTest exten
1151		if (!createIncomplete) assertTrue(f.complete(v1));
1152		final CompletableFuture<Integer> g = m.handle
1153		(f,
1154	<	(Integer x, Throwable t) -> {
1154	>	(Integer result, Throwable t) -> {
1155		m.checkExecutionMode();
1156	<	threadAssertSame(x, v1);
1156	>	threadAssertSame(result, v1);
1157		threadAssertNull(t);
1158		a.getAndIncrement();
1159		return inc(v1);
#	Line 1094 | Line 1180 | public class CompletableFutureTest exten
1180		if (!createIncomplete) f.completeExceptionally(ex);
1181		final CompletableFuture<Integer> g = m.handle
1182		(f,
1183	<	(Integer x, Throwable t) -> {
1183	>	(Integer result, Throwable t) -> {
1184		m.checkExecutionMode();
1185	<	threadAssertNull(x);
1185	>	threadAssertNull(result);
1186		threadAssertSame(t, ex);
1187		a.getAndIncrement();
1188		return v1;
#	Line 1123 | Line 1209 | public class CompletableFutureTest exten
1209		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1210		final CompletableFuture<Integer> g = m.handle
1211		(f,
1212	<	(Integer x, Throwable t) -> {
1212	>	(Integer result, Throwable t) -> {
1213		m.checkExecutionMode();
1214	<	threadAssertNull(x);
1214	>	threadAssertNull(result);
1215		threadAssertTrue(t instanceof CancellationException);
1216		a.getAndIncrement();
1217		return v1;
#	Line 1138 | Line 1224 | public class CompletableFutureTest exten
1224		}}
1225
1226		/**
1227	<	* handle result completes exceptionally if action does
1227	>	* If a "handle action" throws an exception when triggered by
1228	>	* a normal completion, it completes exceptionally
1229		*/
1230	<	public void testHandle_sourceFailedActionFailed() {
1230	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1231		for (ExecutionMode m : ExecutionMode.values())
1232		for (boolean createIncomplete : new boolean[] { true, false })
1233	+	for (Integer v1 : new Integer[] { 1, null })
1234		{
1235		final CompletableFuture<Integer> f = new CompletableFuture<>();
1236		final AtomicInteger a = new AtomicInteger(0);
1237	<	final CFException ex1 = new CFException();
1238	<	final CFException ex2 = new CFException();
1151	<	if (!createIncomplete) f.completeExceptionally(ex1);
1237	>	final CFException ex = new CFException();
1238	>	if (!createIncomplete) assertTrue(f.complete(v1));
1239		final CompletableFuture<Integer> g = m.handle
1240		(f,
1241	<	(Integer x, Throwable t) -> {
1241	>	(Integer result, Throwable t) -> {
1242		m.checkExecutionMode();
1243	<	threadAssertNull(x);
1244	<	threadAssertSame(ex1, t);
1243	>	threadAssertSame(result, v1);
1244	>	threadAssertNull(t);
1245		a.getAndIncrement();
1246	<	throw ex2;
1246	>	throw ex;
1247		});
1248	<	if (createIncomplete) f.completeExceptionally(ex1);
1248	>	if (createIncomplete) assertTrue(f.complete(v1));
1249
1250	<	checkCompletedWithWrappedException(g, ex2);
1251	<	checkCompletedExceptionally(f, ex1);
1250	>	checkCompletedWithWrappedException(g, ex);
1251	>	checkCompletedNormally(f, v1);
1252		assertEquals(1, a.get());
1253		}}
1254
1255	<	public void testHandle_sourceCompletedNormallyActionFailed() {
1256	<	for (ExecutionMode m : ExecutionMode.values())
1255	>	/**
1256	>	* If a "handle action" throws an exception when triggered by
1257	>	* a source completion that also throws an exception, the action
1258	>	* exception takes precedence (unlike whenComplete)
1259	>	*/
1260	>	public void testHandle_sourceFailedActionFailed() {
1261		for (boolean createIncomplete : new boolean[] { true, false })
1262	<	for (Integer v1 : new Integer[] { 1, null })
1262	>	for (ExecutionMode m : ExecutionMode.values())
1263		{
1173	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
1264		final AtomicInteger a = new AtomicInteger(0);
1265	<	final CFException ex = new CFException();
1266	<	if (!createIncomplete) assertTrue(f.complete(v1));
1265	>	final CFException ex1 = new CFException();
1266	>	final CFException ex2 = new CFException();
1267	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1268	>
1269	>	if (!createIncomplete) f.completeExceptionally(ex1);
1270		final CompletableFuture<Integer> g = m.handle
1271		(f,
1272	<	(Integer x, Throwable t) -> {
1272	>	(Integer result, Throwable t) -> {
1273		m.checkExecutionMode();
1274	<	threadAssertSame(x, v1);
1275	<	threadAssertNull(t);
1274	>	threadAssertNull(result);
1275	>	threadAssertSame(ex1, t);
1276		a.getAndIncrement();
1277	<	throw ex;
1277	>	throw ex2;
1278		});
1279	<	if (createIncomplete) assertTrue(f.complete(v1));
1279	>	if (createIncomplete) f.completeExceptionally(ex1);
1280
1281	<	checkCompletedWithWrappedException(g, ex);
1282	<	checkCompletedNormally(f, v1);
1281	>	checkCompletedWithWrappedException(g, ex2);
1282	>	checkCompletedExceptionally(f, ex1);
1283		assertEquals(1, a.get());
1284		}}
1285
#	Line 1219 | Line 1312 | public class CompletableFutureTest exten
1312		{
1313		final FailingRunnable r = new FailingRunnable(m);
1314		final CompletableFuture<Void> f = m.runAsync(r);
1315	<	checkCompletedWithWrappedCFException(f);
1315	>	checkCompletedWithWrappedException(f, r.ex);
1316		r.assertInvoked();
1317		}}
1318
1319	+	@SuppressWarnings("FutureReturnValueIgnored")
1320	+	public void testRunAsync_rejectingExecutor() {
1321	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1322	+	try {
1323	+	CompletableFuture.runAsync(() -> {}, e);
1324	+	shouldThrow();
1325	+	} catch (Throwable t) {
1326	+	assertSame(e.ex, t);
1327	+	}
1328	+
1329	+	assertEquals(1, e.count.get());
1330	+	}
1331	+
1332		/**
1333		* supplyAsync completes with result of supplier
1334		*/
#	Line 1253 | Line 1359 | public class CompletableFutureTest exten
1359		{
1360		FailingSupplier r = new FailingSupplier(m);
1361		CompletableFuture<Integer> f = m.supplyAsync(r);
1362	<	checkCompletedWithWrappedCFException(f);
1362	>	checkCompletedWithWrappedException(f, r.ex);
1363		r.assertInvoked();
1364		}}
1365
1366	+	@SuppressWarnings("FutureReturnValueIgnored")
1367	+	public void testSupplyAsync_rejectingExecutor() {
1368	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1369	+	try {
1370	+	CompletableFuture.supplyAsync(() -> null, e);
1371	+	shouldThrow();
1372	+	} catch (Throwable t) {
1373	+	assertSame(e.ex, t);
1374	+	}
1375	+
1376	+	assertEquals(1, e.count.get());
1377	+	}
1378	+
1379		// seq completion methods
1380
1381		/**
#	Line 1375 | 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 1479 | 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 1491 | Line 1610 | public class CompletableFutureTest exten
1610		*/
1611		public void testThenAccept_normalCompletion() {
1612		for (ExecutionMode m : ExecutionMode.values())
1494	–	for (boolean createIncomplete : new boolean[] { true, false })
1613		for (Integer v1 : new Integer[] { 1, null })
1614		{
1615		final CompletableFuture<Integer> f = new CompletableFuture<>();
1616	<	final NoopConsumer r = new NoopConsumer(m);
1617	<	if (!createIncomplete) assertTrue(f.complete(v1));
1500	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1501	<	if (createIncomplete) {
1502	<	checkIncomplete(g);
1503	<	assertTrue(f.complete(v1));
1504	<	}
1616	>	final NoopConsumer[] rs = new NoopConsumer[4];
1617	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1618
1619	<	checkCompletedNormally(g, null);
1620	<	r.assertValue(v1);
1619	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1620	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1621	>	checkIncomplete(h0);
1622	>	checkIncomplete(h1);
1623	>	assertTrue(f.complete(v1));
1624	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1625	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1626	>
1627	>	checkCompletedNormally(h0, null);
1628	>	checkCompletedNormally(h1, null);
1629	>	checkCompletedNormally(h2, null);
1630	>	checkCompletedNormally(h3, null);
1631		checkCompletedNormally(f, v1);
1632	+	for (NoopConsumer r : rs) r.assertValue(v1);
1633		}}
1634
1635		/**
#	Line 1514 | Line 1638 | public class CompletableFutureTest exten
1638		*/
1639		public void testThenAccept_exceptionalCompletion() {
1640		for (ExecutionMode m : ExecutionMode.values())
1517	–	for (boolean createIncomplete : new boolean[] { true, false })
1641		{
1642		final CFException ex = new CFException();
1643		final CompletableFuture<Integer> f = new CompletableFuture<>();
1644	<	final NoopConsumer r = new NoopConsumer(m);
1645	<	if (!createIncomplete) f.completeExceptionally(ex);
1523	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1524	<	if (createIncomplete) {
1525	<	checkIncomplete(g);
1526	<	f.completeExceptionally(ex);
1527	<	}
1644	>	final NoopConsumer[] rs = new NoopConsumer[4];
1645	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1646
1647	<	checkCompletedWithWrappedException(g, ex);
1647	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1648	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1649	>	assertTrue(f.completeExceptionally(ex));
1650	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1651	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1652	>
1653	>	checkCompletedWithWrappedException(h0, ex);
1654	>	checkCompletedWithWrappedException(h1, ex);
1655	>	checkCompletedWithWrappedException(h2, ex);
1656	>	checkCompletedWithWrappedException(h3, ex);
1657		checkCompletedExceptionally(f, ex);
1658	<	r.assertNotInvoked();
1658	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1659		}}
1660
1661		/**
#	Line 1536 | Line 1663 | public class CompletableFutureTest exten
1663		*/
1664		public void testThenAccept_sourceCancelled() {
1665		for (ExecutionMode m : ExecutionMode.values())
1539	–	for (boolean createIncomplete : new boolean[] { true, false })
1666		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1667		{
1668		final CompletableFuture<Integer> f = new CompletableFuture<>();
1669	<	final NoopConsumer r = new NoopConsumer(m);
1670	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1545	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1546	<	if (createIncomplete) {
1547	<	checkIncomplete(g);
1548	<	assertTrue(f.cancel(mayInterruptIfRunning));
1549	<	}
1669	>	final NoopConsumer[] rs = new NoopConsumer[4];
1670	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1671
1672	<	checkCompletedWithWrappedCancellationException(g);
1672	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1673	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1674	>	assertTrue(f.cancel(mayInterruptIfRunning));
1675	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1676	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1677	>
1678	>	checkCompletedWithWrappedCancellationException(h0);
1679	>	checkCompletedWithWrappedCancellationException(h1);
1680	>	checkCompletedWithWrappedCancellationException(h2);
1681	>	checkCompletedWithWrappedCancellationException(h3);
1682		checkCancelled(f);
1683	<	r.assertNotInvoked();
1683	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1684		}}
1685
1686		/**
#	Line 1558 | Line 1688 | public class CompletableFutureTest exten
1688		*/
1689		public void testThenAccept_actionFailed() {
1690		for (ExecutionMode m : ExecutionMode.values())
1561	–	for (boolean createIncomplete : new boolean[] { true, false })
1691		for (Integer v1 : new Integer[] { 1, null })
1692		{
1693		final CompletableFuture<Integer> f = new CompletableFuture<>();
1694	<	final FailingConsumer r = new FailingConsumer(m);
1695	<	if (!createIncomplete) f.complete(v1);
1696	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1697	<	if (createIncomplete) {
1698	<	checkIncomplete(g);
1699	<	f.complete(v1);
1700	<	}
1694	>	final FailingConsumer[] rs = new FailingConsumer[4];
1695	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1696	>
1697	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1698	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1699	>	assertTrue(f.complete(v1));
1700	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1701	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1702
1703	<	checkCompletedWithWrappedCFException(g);
1703	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1704	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1705	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1706	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1707		checkCompletedNormally(f, v1);
1708		}}
1709
#	Line 1586 | Line 1719 | public class CompletableFutureTest exten
1719		{
1720		final CompletableFuture<Integer> f = new CompletableFuture<>();
1721		final CompletableFuture<Integer> g = new CompletableFuture<>();
1722	<	final SubtractFunction r1 = new SubtractFunction(m);
1723	<	final SubtractFunction r2 = new SubtractFunction(m);
1591	<	final SubtractFunction r3 = new SubtractFunction(m);
1722	>	final SubtractFunction[] rs = new SubtractFunction[6];
1723	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1724
1725		final CompletableFuture<Integer> fst =  fFirst ? f : g;
1726		final CompletableFuture<Integer> snd = !fFirst ? f : g;
1727		final Integer w1 =  fFirst ? v1 : v2;
1728		final Integer w2 = !fFirst ? v1 : v2;
1729
1730	<	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1730	>	final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1731	>	final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1732		assertTrue(fst.complete(w1));
1733	<	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1734	<	checkIncomplete(h1);
1735	<	checkIncomplete(h2);
1736	<	r1.assertNotInvoked();
1737	<	r2.assertNotInvoked();
1733	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1734	>	final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1735	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1736	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1737	>	checkCompletedNormally(h1, subtract(w1, w1));
1738	>	checkCompletedNormally(h3, subtract(w1, w1));
1739	>	rs[1].assertValue(subtract(w1, w1));
1740	>	rs[3].assertValue(subtract(w1, w1));
1741		assertTrue(snd.complete(w2));
1742	<	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1742	>	final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1743
1744	<	checkCompletedNormally(h1, subtract(v1, v2));
1744	>	checkCompletedNormally(h0, subtract(v1, v2));
1745		checkCompletedNormally(h2, subtract(v1, v2));
1746	<	checkCompletedNormally(h3, subtract(v1, v2));
1747	<	r1.assertValue(subtract(v1, v2));
1748	<	r2.assertValue(subtract(v1, v2));
1749	<	r3.assertValue(subtract(v1, v2));
1746	>	checkCompletedNormally(h4, subtract(v1, v2));
1747	>	rs[0].assertValue(subtract(v1, v2));
1748	>	rs[2].assertValue(subtract(v1, v2));
1749	>	rs[4].assertValue(subtract(v1, v2));
1750	>
1751		checkCompletedNormally(f, v1);
1752		checkCompletedNormally(g, v2);
1753		}}
#	Line 1728 | 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 1892 | 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 2056 | 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 2348 | 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 2360 | 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 2501 | 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 2607 | 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 2619 | 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 2638 | 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 2650 | 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 2756 | 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 2862 | 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 2932 | 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 2957 | Line 3099 | public class CompletableFutureTest exten
3099		checkCancelled(f);
3100		}}
3101
3102	+	/**
3103	+	* thenCompose result completes exceptionally if the result of the action does
3104	+	*/
3105	+	public void testThenCompose_actionReturnsFailingFuture() {
3106	+	for (ExecutionMode m : ExecutionMode.values())
3107	+	for (int order = 0; order < 6; order++)
3108	+	for (Integer v1 : new Integer[] { 1, null })
3109	+	{
3110	+	final CFException ex = new CFException();
3111	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3112	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
3113	+	final CompletableFuture<Integer> h;
3114	+	// Test all permutations of orders
3115	+	switch (order) {
3116	+	case 0:
3117	+	assertTrue(f.complete(v1));
3118	+	assertTrue(g.completeExceptionally(ex));
3119	+	h = m.thenCompose(f, (x -> g));
3120	+	break;
3121	+	case 1:
3122	+	assertTrue(f.complete(v1));
3123	+	h = m.thenCompose(f, (x -> g));
3124	+	assertTrue(g.completeExceptionally(ex));
3125	+	break;
3126	+	case 2:
3127	+	assertTrue(g.completeExceptionally(ex));
3128	+	assertTrue(f.complete(v1));
3129	+	h = m.thenCompose(f, (x -> g));
3130	+	break;
3131	+	case 3:
3132	+	assertTrue(g.completeExceptionally(ex));
3133	+	h = m.thenCompose(f, (x -> g));
3134	+	assertTrue(f.complete(v1));
3135	+	break;
3136	+	case 4:
3137	+	h = m.thenCompose(f, (x -> g));
3138	+	assertTrue(f.complete(v1));
3139	+	assertTrue(g.completeExceptionally(ex));
3140	+	break;
3141	+	case 5:
3142	+	h = m.thenCompose(f, (x -> g));
3143	+	assertTrue(f.complete(v1));
3144	+	assertTrue(g.completeExceptionally(ex));
3145	+	break;
3146	+	default: throw new AssertionError();
3147	+	}
3148	+
3149	+	checkCompletedExceptionally(g, ex);
3150	+	checkCompletedWithWrappedException(h, ex);
3151	+	checkCompletedNormally(f, v1);
3152	+	}}
3153	+
3154	+	/**
3155	+	* exceptionallyCompose result completes normally after normal
3156	+	* completion of source
3157	+	*/
3158	+	public void testExceptionallyCompose_normalCompletion() {
3159	+	for (ExecutionMode m : ExecutionMode.values())
3160	+	for (boolean createIncomplete : new boolean[] { true, false })
3161	+	for (Integer v1 : new Integer[] { 1, null })
3162	+	{
3163	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3164	+	final ExceptionalCompletableFutureFunction r =
3165	+	new ExceptionalCompletableFutureFunction(m);
3166	+	if (!createIncomplete) assertTrue(f.complete(v1));
3167	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3168	+	if (createIncomplete) assertTrue(f.complete(v1));
3169	+
3170	+	if (!createIncomplete && testImplementationDetails)
3171	+	assertSame(f, g);
3172	+	checkCompletedNormally(f, v1);
3173	+	checkCompletedNormally(g, v1);
3174	+	r.assertNotInvoked();
3175	+	}}
3176	+
3177	+	/**
3178	+	* exceptionallyCompose result completes normally after exceptional
3179	+	* completion of source
3180	+	*/
3181	+	public void testExceptionallyCompose_exceptionalCompletion() {
3182	+	for (ExecutionMode m : ExecutionMode.values())
3183	+	for (boolean createIncomplete : new boolean[] { true, false })
3184	+	{
3185	+	final CFException ex = new CFException();
3186	+	final ExceptionalCompletableFutureFunction r =
3187	+	new ExceptionalCompletableFutureFunction(m);
3188	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3189	+	if (!createIncomplete) f.completeExceptionally(ex);
3190	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3191	+	if (createIncomplete) f.completeExceptionally(ex);
3192	+
3193	+	checkCompletedExceptionally(f, ex);
3194	+	checkCompletedNormally(g, r.value);
3195	+	r.assertInvoked();
3196	+	}}
3197	+
3198	+	/**
3199	+	* exceptionallyCompose completes exceptionally on exception if action does
3200	+	*/
3201	+	public void testExceptionallyCompose_actionFailed() {
3202	+	for (ExecutionMode m : ExecutionMode.values())
3203	+	for (boolean createIncomplete : new boolean[] { true, false })
3204	+	for (Integer v1 : new Integer[] { 1, null })
3205	+	{
3206	+	final CFException ex = new CFException();
3207	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3208	+	final FailingExceptionalCompletableFutureFunction r
3209	+	= new FailingExceptionalCompletableFutureFunction(m);
3210	+	if (!createIncomplete) f.completeExceptionally(ex);
3211	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3212	+	if (createIncomplete) f.completeExceptionally(ex);
3213	+
3214	+	checkCompletedExceptionally(f, ex);
3215	+	checkCompletedWithWrappedException(g, r.ex);
3216	+	r.assertInvoked();
3217	+	}}
3218	+
3219	+
3220		// other static methods
3221
3222		/**
#	Line 2989 | Line 3249 | public class CompletableFutureTest exten
3249		}
3250		}
3251
3252	<	public void testAllOf_backwards() throws Exception {
3252	>	public void testAllOf_normal_backwards() throws Exception {
3253		for (int k = 1; k < 10; k++) {
3254		CompletableFuture<Integer>[] fs
3255		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
#	Line 3017 | Line 3277 | public class CompletableFutureTest exten
3277		for (int i = 0; i < k; i++) {
3278		checkIncomplete(f);
3279		checkIncomplete(CompletableFuture.allOf(fs));
3280	<	if (i != k/2) {
3280	>	if (i != k / 2) {
3281		fs[i].complete(i);
3282		checkCompletedNormally(fs[i], i);
3283		} else {
#	Line 3120 | Line 3380 | public class CompletableFutureTest exten
3380		/**
3381		* Completion methods throw NullPointerException with null arguments
3382		*/
3383	+	@SuppressWarnings("FutureReturnValueIgnored")
3384		public void testNPE() {
3385		CompletableFuture<Integer> f = new CompletableFuture<>();
3386		CompletableFuture<Integer> g = new CompletableFuture<>();
3387		CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
3127	–	CompletableFuture<?> h;
3388		ThreadExecutor exec = new ThreadExecutor();
3389
3390		Runnable[] throwingActions = {
3391		() -> CompletableFuture.supplyAsync(null),
3392		() -> CompletableFuture.supplyAsync(null, exec),
3393	<	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.DEFAULT, 42), null),
3393	>	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3394
3395		() -> CompletableFuture.runAsync(null),
3396		() -> CompletableFuture.runAsync(null, exec),
#	Line 3140 | Line 3400 | public class CompletableFutureTest exten
3400
3401		() -> f.thenApply(null),
3402		() -> f.thenApplyAsync(null),
3403	<	() -> f.thenApplyAsync((x) -> x, null),
3403	>	() -> f.thenApplyAsync(x -> x, null),
3404		() -> f.thenApplyAsync(null, exec),
3405
3406		() -> f.thenAccept(null),
3407		() -> f.thenAcceptAsync(null),
3408	<	() -> f.thenAcceptAsync((x) -> {} , null),
3408	>	() -> f.thenAcceptAsync(x -> {} , null),
3409		() -> f.thenAcceptAsync(null, exec),
3410
3411		() -> f.thenRun(null),
#	Line 3180 | Line 3440 | public class CompletableFutureTest exten
3440		() -> f.applyToEither(g, null),
3441		() -> f.applyToEitherAsync(g, null),
3442		() -> f.applyToEitherAsync(g, null, exec),
3443	<	() -> f.applyToEither(nullFuture, (x) -> x),
3444	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x),
3445	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
3446	<	() -> f.applyToEitherAsync(g, (x) -> x, null),
3443	>	() -> f.applyToEither(nullFuture, x -> x),
3444	>	() -> f.applyToEitherAsync(nullFuture, x -> x),
3445	>	() -> f.applyToEitherAsync(nullFuture, x -> x, exec),
3446	>	() -> f.applyToEitherAsync(g, x -> x, null),
3447
3448		() -> f.acceptEither(g, null),
3449		() -> f.acceptEitherAsync(g, null),
3450		() -> f.acceptEitherAsync(g, null, exec),
3451	<	() -> f.acceptEither(nullFuture, (x) -> {}),
3452	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}),
3453	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
3454	<	() -> f.acceptEitherAsync(g, (x) -> {}, null),
3451	>	() -> f.acceptEither(nullFuture, x -> {}),
3452	>	() -> f.acceptEitherAsync(nullFuture, x -> {}),
3453	>	() -> f.acceptEitherAsync(nullFuture, x -> {}, exec),
3454	>	() -> f.acceptEitherAsync(g, x -> {}, null),
3455
3456		() -> f.runAfterEither(g, null),
3457		() -> f.runAfterEitherAsync(g, null),
#	Line 3221 | Line 3481 | public class CompletableFutureTest exten
3481		() -> CompletableFuture.anyOf(null, f),
3482
3483		() -> f.obtrudeException(null),
3484	+
3485	+	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3486	+	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3487	+	() -> CompletableFuture.delayedExecutor(1L, null),
3488	+
3489	+	() -> f.orTimeout(1L, null),
3490	+	() -> f.completeOnTimeout(42, 1L, null),
3491	+
3492	+	() -> CompletableFuture.failedFuture(null),
3493	+	() -> CompletableFuture.failedStage(null),
3494		};
3495
3496		assertThrows(NullPointerException.class, throwingActions);
#	Line 3228 | Line 3498 | public class CompletableFutureTest exten
3498		}
3499
3500		/**
3501	+	* Test submissions to an executor that rejects all tasks.
3502	+	*/
3503	+	public void testRejectingExecutor() {
3504	+	for (Integer v : new Integer[] { 1, null })
3505	+	{
3506	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3507	+
3508	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3509	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3510	+
3511	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3512	+
3513	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3514	+	srcs.add(complete);
3515	+	srcs.add(incomplete);
3516	+
3517	+	for (CompletableFuture<Integer> src : srcs) {
3518	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3519	+	fs.add(src.thenRunAsync(() -> {}, e));
3520	+	fs.add(src.thenAcceptAsync(z -> {}, e));
3521	+	fs.add(src.thenApplyAsync(z -> z, e));
3522	+
3523	+	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3524	+	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3525	+	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3526	+
3527	+	fs.add(src.applyToEitherAsync(src, z -> z, e));
3528	+	fs.add(src.acceptEitherAsync(src, z -> {}, e));
3529	+	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3530	+
3531	+	fs.add(src.thenComposeAsync(z -> null, e));
3532	+	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3533	+	fs.add(src.handleAsync((z, t) -> null, e));
3534	+
3535	+	for (CompletableFuture<?> future : fs) {
3536	+	if (src.isDone())
3537	+	checkCompletedWithWrappedException(future, e.ex);
3538	+	else
3539	+	checkIncomplete(future);
3540	+	}
3541	+	futures.addAll(fs);
3542	+	}
3543	+
3544	+	{
3545	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3546	+
3547	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3548	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3549	+
3550	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3551	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3552	+
3553	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3554	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3555	+
3556	+	for (CompletableFuture<?> future : fs)
3557	+	checkIncomplete(future);
3558	+	futures.addAll(fs);
3559	+	}
3560	+
3561	+	{
3562	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3563	+
3564	+	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3565	+	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3566	+
3567	+	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3568	+	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3569	+
3570	+	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3571	+	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3572	+
3573	+	for (CompletableFuture<?> future : fs)
3574	+	checkCompletedWithWrappedException(future, e.ex);
3575	+	futures.addAll(fs);
3576	+	}
3577	+
3578	+	incomplete.complete(v);
3579	+
3580	+	for (CompletableFuture<?> future : futures)
3581	+	checkCompletedWithWrappedException(future, e.ex);
3582	+
3583	+	assertEquals(futures.size(), e.count.get());
3584	+	}}
3585	+
3586	+	/**
3587	+	* Test submissions to an executor that rejects all tasks, but
3588	+	* should never be invoked because the dependent future is
3589	+	* explicitly completed.
3590	+	*/
3591	+	public void testRejectingExecutorNeverInvoked() {
3592	+	for (Integer v : new Integer[] { 1, null })
3593	+	{
3594	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3595	+
3596	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3597	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3598	+
3599	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3600	+
3601	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3602	+	srcs.add(complete);
3603	+	srcs.add(incomplete);
3604	+
3605	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3606	+	fs.add(incomplete.thenRunAsync(() -> {}, e));
3607	+	fs.add(incomplete.thenAcceptAsync(z -> {}, e));
3608	+	fs.add(incomplete.thenApplyAsync(z -> z, e));
3609	+
3610	+	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3611	+	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3612	+	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3613	+
3614	+	fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e));
3615	+	fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e));
3616	+	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3617	+
3618	+	fs.add(incomplete.thenComposeAsync(z -> null, e));
3619	+	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3620	+	fs.add(incomplete.handleAsync((z, t) -> null, e));
3621	+
3622	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3623	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3624	+
3625	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3626	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3627	+
3628	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3629	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3630	+
3631	+	for (CompletableFuture<?> future : fs)
3632	+	checkIncomplete(future);
3633	+
3634	+	for (CompletableFuture<?> future : fs)
3635	+	future.complete(null);
3636	+
3637	+	incomplete.complete(v);
3638	+
3639	+	for (CompletableFuture<?> future : fs)
3640	+	checkCompletedNormally(future, null);
3641	+
3642	+	assertEquals(0, e.count.get());
3643	+	}}
3644	+
3645	+	/**
3646		* toCompletableFuture returns this CompletableFuture.
3647		*/
3648		public void testToCompletableFuture() {
#	Line 3235 | Line 3650 | public class CompletableFutureTest exten
3650		assertSame(f, f.toCompletableFuture());
3651		}
3652
3653	+	// jdk9
3654	+
3655	+	/**
3656	+	* newIncompleteFuture returns an incomplete CompletableFuture
3657	+	*/
3658	+	public void testNewIncompleteFuture() {
3659	+	for (Integer v1 : new Integer[] { 1, null })
3660	+	{
3661	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3662	+	CompletableFuture<Integer> g = f.newIncompleteFuture();
3663	+	checkIncomplete(f);
3664	+	checkIncomplete(g);
3665	+	f.complete(v1);
3666	+	checkCompletedNormally(f, v1);
3667	+	checkIncomplete(g);
3668	+	g.complete(v1);
3669	+	checkCompletedNormally(g, v1);
3670	+	assertSame(g.getClass(), CompletableFuture.class);
3671	+	}}
3672	+
3673	+	/**
3674	+	* completedStage returns a completed CompletionStage
3675	+	*/
3676	+	public void testCompletedStage() {
3677	+	AtomicInteger x = new AtomicInteger(0);
3678	+	AtomicReference<Throwable> r = new AtomicReference<>();
3679	+	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3680	+	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3681	+	assertEquals(x.get(), 1);
3682	+	assertNull(r.get());
3683	+	}
3684	+
3685	+	/**
3686	+	* defaultExecutor by default returns the commonPool if
3687	+	* it supports more than one thread.
3688	+	*/
3689	+	public void testDefaultExecutor() {
3690	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3691	+	Executor e = f.defaultExecutor();
3692	+	Executor c = ForkJoinPool.commonPool();
3693	+	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3694	+	assertSame(e, c);
3695	+	else
3696	+	assertNotSame(e, c);
3697	+	}
3698	+
3699	+	/**
3700	+	* failedFuture returns a CompletableFuture completed
3701	+	* exceptionally with the given Exception
3702	+	*/
3703	+	public void testFailedFuture() {
3704	+	CFException ex = new CFException();
3705	+	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3706	+	checkCompletedExceptionally(f, ex);
3707	+	}
3708	+
3709	+	/**
3710	+	* failedFuture(null) throws NPE
3711	+	*/
3712	+	public void testFailedFuture_null() {
3713	+	try {
3714	+	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3715	+	shouldThrow();
3716	+	} catch (NullPointerException success) {}
3717	+	}
3718	+
3719	+	/**
3720	+	* copy returns a CompletableFuture that is completed normally,
3721	+	* with the same value, when source is.
3722	+	*/
3723	+	public void testCopy_normalCompletion() {
3724	+	for (boolean createIncomplete : new boolean[] { true, false })
3725	+	for (Integer v1 : new Integer[] { 1, null })
3726	+	{
3727	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3728	+	if (!createIncomplete) assertTrue(f.complete(v1));
3729	+	CompletableFuture<Integer> g = f.copy();
3730	+	if (createIncomplete) {
3731	+	checkIncomplete(f);
3732	+	checkIncomplete(g);
3733	+	assertTrue(f.complete(v1));
3734	+	}
3735	+	checkCompletedNormally(f, v1);
3736	+	checkCompletedNormally(g, v1);
3737	+	}}
3738	+
3739	+	/**
3740	+	* copy returns a CompletableFuture that is completed exceptionally
3741	+	* when source is.
3742	+	*/
3743	+	public void testCopy_exceptionalCompletion() {
3744	+	for (boolean createIncomplete : new boolean[] { true, false })
3745	+	{
3746	+	CFException ex = new CFException();
3747	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3748	+	if (!createIncomplete) f.completeExceptionally(ex);
3749	+	CompletableFuture<Integer> g = f.copy();
3750	+	if (createIncomplete) {
3751	+	checkIncomplete(f);
3752	+	checkIncomplete(g);
3753	+	f.completeExceptionally(ex);
3754	+	}
3755	+	checkCompletedExceptionally(f, ex);
3756	+	checkCompletedWithWrappedException(g, ex);
3757	+	}}
3758	+
3759	+	/**
3760	+	* Completion of a copy does not complete its source.
3761	+	*/
3762	+	public void testCopy_oneWayPropagation() {
3763	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3764	+	assertTrue(f.copy().complete(1));
3765	+	assertTrue(f.copy().complete(null));
3766	+	assertTrue(f.copy().cancel(true));
3767	+	assertTrue(f.copy().cancel(false));
3768	+	assertTrue(f.copy().completeExceptionally(new CFException()));
3769	+	checkIncomplete(f);
3770	+	}
3771	+
3772	+	/**
3773	+	* minimalCompletionStage returns a CompletableFuture that is
3774	+	* completed normally, with the same value, when source is.
3775	+	*/
3776	+	public void testMinimalCompletionStage() {
3777	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3778	+	CompletionStage<Integer> g = f.minimalCompletionStage();
3779	+	AtomicInteger x = new AtomicInteger(0);
3780	+	AtomicReference<Throwable> r = new AtomicReference<>();
3781	+	checkIncomplete(f);
3782	+	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3783	+	f.complete(1);
3784	+	checkCompletedNormally(f, 1);
3785	+	assertEquals(x.get(), 1);
3786	+	assertNull(r.get());
3787	+	}
3788	+
3789	+	/**
3790	+	* minimalCompletionStage returns a CompletableFuture that is
3791	+	* completed exceptionally when source is.
3792	+	*/
3793	+	public void testMinimalCompletionStage2() {
3794	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3795	+	CompletionStage<Integer> g = f.minimalCompletionStage();
3796	+	AtomicInteger x = new AtomicInteger(0);
3797	+	AtomicReference<Throwable> r = new AtomicReference<>();
3798	+	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3799	+	checkIncomplete(f);
3800	+	CFException ex = new CFException();
3801	+	f.completeExceptionally(ex);
3802	+	checkCompletedExceptionally(f, ex);
3803	+	assertEquals(x.get(), 0);
3804	+	assertEquals(r.get().getCause(), ex);
3805	+	}
3806	+
3807	+	/**
3808	+	* failedStage returns a CompletionStage completed
3809	+	* exceptionally with the given Exception
3810	+	*/
3811	+	public void testFailedStage() {
3812	+	CFException ex = new CFException();
3813	+	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3814	+	AtomicInteger x = new AtomicInteger(0);
3815	+	AtomicReference<Throwable> r = new AtomicReference<>();
3816	+	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3817	+	assertEquals(x.get(), 0);
3818	+	assertEquals(r.get(), ex);
3819	+	}
3820	+
3821	+	/**
3822	+	* completeAsync completes with value of given supplier
3823	+	*/
3824	+	public void testCompleteAsync() {
3825	+	for (Integer v1 : new Integer[] { 1, null })
3826	+	{
3827	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3828	+	f.completeAsync(() -> v1);
3829	+	f.join();
3830	+	checkCompletedNormally(f, v1);
3831	+	}}
3832	+
3833	+	/**
3834	+	* completeAsync completes exceptionally if given supplier throws
3835	+	*/
3836	+	public void testCompleteAsync2() {
3837	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3838	+	CFException ex = new CFException();
3839	+	f.completeAsync(() -> { throw ex; });
3840	+	try {
3841	+	f.join();
3842	+	shouldThrow();
3843	+	} catch (CompletionException success) {}
3844	+	checkCompletedWithWrappedException(f, ex);
3845	+	}
3846	+
3847	+	/**
3848	+	* completeAsync with given executor completes with value of given supplier
3849	+	*/
3850	+	public void testCompleteAsync3() {
3851	+	for (Integer v1 : new Integer[] { 1, null })
3852	+	{
3853	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3854	+	ThreadExecutor executor = new ThreadExecutor();
3855	+	f.completeAsync(() -> v1, executor);
3856	+	assertSame(v1, f.join());
3857	+	checkCompletedNormally(f, v1);
3858	+	assertEquals(1, executor.count.get());
3859	+	}}
3860	+
3861	+	/**
3862	+	* completeAsync with given executor completes exceptionally if
3863	+	* given supplier throws
3864	+	*/
3865	+	public void testCompleteAsync4() {
3866	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3867	+	CFException ex = new CFException();
3868	+	ThreadExecutor executor = new ThreadExecutor();
3869	+	f.completeAsync(() -> { throw ex; }, executor);
3870	+	try {
3871	+	f.join();
3872	+	shouldThrow();
3873	+	} catch (CompletionException success) {}
3874	+	checkCompletedWithWrappedException(f, ex);
3875	+	assertEquals(1, executor.count.get());
3876	+	}
3877	+
3878	+	/**
3879	+	* orTimeout completes with TimeoutException if not complete
3880	+	*/
3881	+	public void testOrTimeout_timesOut() {
3882	+	long timeoutMillis = timeoutMillis();
3883	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3884	+	long startTime = System.nanoTime();
3885	+	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3886	+	checkCompletedWithTimeoutException(f);
3887	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3888	+	}
3889	+
3890	+	/**
3891	+	* orTimeout completes normally if completed before timeout
3892	+	*/
3893	+	public void testOrTimeout_completed() {
3894	+	for (Integer v1 : new Integer[] { 1, null })
3895	+	{
3896	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3897	+	CompletableFuture<Integer> g = new CompletableFuture<>();
3898	+	long startTime = System.nanoTime();
3899	+	f.complete(v1);
3900	+	assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3901	+	assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3902	+	g.complete(v1);
3903	+	checkCompletedNormally(f, v1);
3904	+	checkCompletedNormally(g, v1);
3905	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3906	+	}}
3907	+
3908	+	/**
3909	+	* completeOnTimeout completes with given value if not complete
3910	+	*/
3911	+	public void testCompleteOnTimeout_timesOut() {
3912	+	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3913	+	() -> testCompleteOnTimeout_timesOut(null));
3914	+	}
3915	+
3916	+	/**
3917	+	* completeOnTimeout completes with given value if not complete
3918	+	*/
3919	+	public void testCompleteOnTimeout_timesOut(Integer v) {
3920	+	long timeoutMillis = timeoutMillis();
3921	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3922	+	long startTime = System.nanoTime();
3923	+	assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS));
3924	+	assertSame(v, f.join());
3925	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3926	+	f.complete(99);         // should have no effect
3927	+	checkCompletedNormally(f, v);
3928	+	}
3929	+
3930	+	/**
3931	+	* completeOnTimeout has no effect if completed within timeout
3932	+	*/
3933	+	public void testCompleteOnTimeout_completed() {
3934	+	for (Integer v1 : new Integer[] { 1, null })
3935	+	{
3936	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3937	+	CompletableFuture<Integer> g = new CompletableFuture<>();
3938	+	long startTime = System.nanoTime();
3939	+	f.complete(v1);
3940	+	assertSame(f, f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3941	+	assertSame(g, g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3942	+	g.complete(v1);
3943	+	checkCompletedNormally(f, v1);
3944	+	checkCompletedNormally(g, v1);
3945	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3946	+	}}
3947	+
3948	+	/**
3949	+	* delayedExecutor returns an executor that delays submission
3950	+	*/
3951	+	public void testDelayedExecutor() {
3952	+	testInParallel(() -> testDelayedExecutor(null, null),
3953	+	() -> testDelayedExecutor(null, 1),
3954	+	() -> testDelayedExecutor(new ThreadExecutor(), 1),
3955	+	() -> testDelayedExecutor(new ThreadExecutor(), 1));
3956	+	}
3957	+
3958	+	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
3959	+	long timeoutMillis = timeoutMillis();
3960	+	// Use an "unreasonably long" long timeout to catch lingering threads
3961	+	long longTimeoutMillis = 1000 * 60 * 60 * 24;
3962	+	final Executor delayer, longDelayer;
3963	+	if (executor == null) {
3964	+	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
3965	+	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
3966	+	} else {
3967	+	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
3968	+	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
3969	+	}
3970	+	long startTime = System.nanoTime();
3971	+	CompletableFuture<Integer> f =
3972	+	CompletableFuture.supplyAsync(() -> v, delayer);
3973	+	CompletableFuture<Integer> g =
3974	+	CompletableFuture.supplyAsync(() -> v, longDelayer);
3975	+
3976	+	assertNull(g.getNow(null));
3977	+
3978	+	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
3979	+	long millisElapsed = millisElapsedSince(startTime);
3980	+	assertTrue(millisElapsed >= timeoutMillis);
3981	+	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
3982	+
3983	+	checkCompletedNormally(f, v);
3984	+
3985	+	checkIncomplete(g);
3986	+	assertTrue(g.cancel(true));
3987	+	}
3988	+
3989		//--- tests of implementation details; not part of official tck ---
3990
3991		Object resultOf(CompletableFuture<?> f) {
3992	+	SecurityManager sm = System.getSecurityManager();
3993	+	if (sm != null) {
3994	+	try {
3995	+	System.setSecurityManager(null);
3996	+	} catch (SecurityException giveUp) {
3997	+	return "Reflection not available";
3998	+	}
3999	+	}
4000	+
4001		try {
4002		java.lang.reflect.Field resultField
4003		= CompletableFuture.class.getDeclaredField("result");
4004		resultField.setAccessible(true);
4005		return resultField.get(f);
4006	<	} catch (Throwable t) { throw new AssertionError(t); }
4006	>	} catch (Throwable t) {
4007	>	throw new AssertionError(t);
4008	>	} finally {
4009	>	if (sm != null) System.setSecurityManager(sm);
4010	>	}
4011		}
4012
4013		public void testExceptionPropagationReusesResultObject() {
#	Line 3254 | Line 4018 | public class CompletableFutureTest exten
4018		final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
4019		final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4020
4021	+	final Runnable noopRunnable = new Noop(m);
4022	+	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
4023	+	final Function<Integer, Integer> incFunction = new IncFunction(m);
4024	+
4025		List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
4026		= new ArrayList<>();
4027
4028	<	funs.add((y) -> m.thenRun(y, new Noop(m)));
4029	<	funs.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
4030	<	funs.add((y) -> m.thenApply(y, new IncFunction(m)));
4031	<
4032	<	funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
4033	<	funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
4034	<	funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
4035	<
4036	<	funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
4037	<	funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4038	<	funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
4039	<
4040	<	funs.add((y) -> m.whenComplete(y, (Integer x, Throwable t) -> {}));
4041	<
4042	<	funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
4043	<
4044	<	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
4045	<	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
4028	>	funs.add(y -> m.thenRun(y, noopRunnable));
4029	>	funs.add(y -> m.thenAccept(y, noopConsumer));
4030	>	funs.add(y -> m.thenApply(y, incFunction));
4031	>
4032	>	funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable));
4033	>	funs.add(y -> m.acceptEither(y, incomplete, noopConsumer));
4034	>	funs.add(y -> m.applyToEither(y, incomplete, incFunction));
4035	>
4036	>	funs.add(y -> m.runAfterBoth(y, v42, noopRunnable));
4037	>	funs.add(y -> m.runAfterBoth(v42, y, noopRunnable));
4038	>	funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4039	>	funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
4040	>	funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m)));
4041	>	funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m)));
4042	>
4043	>	funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
4044	>
4045	>	funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m)));
4046	>
4047	>	funs.add(y -> CompletableFuture.allOf(y));
4048	>	funs.add(y -> CompletableFuture.allOf(y, v42));
4049	>	funs.add(y -> CompletableFuture.allOf(v42, y));
4050	>	funs.add(y -> CompletableFuture.anyOf(y));
4051	>	funs.add(y -> CompletableFuture.anyOf(y, incomplete));
4052	>	funs.add(y -> CompletableFuture.anyOf(incomplete, y));
4053
4054		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4055		fun : funs) {
4056		CompletableFuture<Integer> f = new CompletableFuture<>();
4057		f.completeExceptionally(ex);
4058	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4058	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4059		checkCompletedWithWrappedException(src, ex);
4060		CompletableFuture<?> dep = fun.apply(src);
4061		checkCompletedWithWrappedException(dep, ex);
#	Line 3290 | Line 4065 | public class CompletableFutureTest exten
4065		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4066		fun : funs) {
4067		CompletableFuture<Integer> f = new CompletableFuture<>();
4068	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4068	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4069		CompletableFuture<?> dep = fun.apply(src);
4070		f.completeExceptionally(ex);
4071		checkCompletedWithWrappedException(src, ex);
#	Line 3304 | Line 4079 | public class CompletableFutureTest exten
4079		CompletableFuture<Integer> f = new CompletableFuture<>();
4080		f.cancel(mayInterruptIfRunning);
4081		checkCancelled(f);
4082	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4082	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4083		checkCompletedWithWrappedCancellationException(src);
4084		CompletableFuture<?> dep = fun.apply(src);
4085		checkCompletedWithWrappedCancellationException(dep);
#	Line 3315 | Line 4090 | public class CompletableFutureTest exten
4090		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4091		fun : funs) {
4092		CompletableFuture<Integer> f = new CompletableFuture<>();
4093	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4093	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4094		CompletableFuture<?> dep = fun.apply(src);
4095		f.cancel(mayInterruptIfRunning);
4096		checkCancelled(f);
#	Line 3325 | Line 4100 | public class CompletableFutureTest exten
4100		}
4101		}}
4102
4103	+	/**
4104	+	* Minimal completion stages throw UOE for most non-CompletionStage methods
4105	+	*/
4106	+	public void testMinimalCompletionStage_minimality() {
4107	+	if (!testImplementationDetails) return;
4108	+	Function<Method, String> toSignature =
4109	+	method -> method.getName() + Arrays.toString(method.getParameterTypes());
4110	+	Predicate<Method> isNotStatic =
4111	+	method -> (method.getModifiers() & Modifier.STATIC) == 0;
4112	+	List<Method> minimalMethods =
4113	+	Stream.of(Object.class, CompletionStage.class)
4114	+	.flatMap(klazz -> Stream.of(klazz.getMethods()))
4115	+	.filter(isNotStatic)
4116	+	.collect(Collectors.toList());
4117	+	// Methods from CompletableFuture permitted NOT to throw UOE
4118	+	String[] signatureWhitelist = {
4119	+	"newIncompleteFuture[]",
4120	+	"defaultExecutor[]",
4121	+	"minimalCompletionStage[]",
4122	+	"copy[]",
4123	+	};
4124	+	Set<String> permittedMethodSignatures =
4125	+	Stream.concat(minimalMethods.stream().map(toSignature),
4126	+	Stream.of(signatureWhitelist))
4127	+	.collect(Collectors.toSet());
4128	+	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
4129	+	.filter(isNotStatic)
4130	+	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4131	+	.collect(Collectors.toList());
4132	+
4133	+	List<CompletionStage<Integer>> stages = new ArrayList<>();
4134	+	CompletionStage<Integer> min =
4135	+	new CompletableFuture<Integer>().minimalCompletionStage();
4136	+	stages.add(min);
4137	+	stages.add(min.thenApply(x -> x));
4138	+	stages.add(CompletableFuture.completedStage(1));
4139	+	stages.add(CompletableFuture.failedStage(new CFException()));
4140	+
4141	+	List<Method> bugs = new ArrayList<>();
4142	+	for (Method method : allMethods) {
4143	+	Class<?>[] parameterTypes = method.getParameterTypes();
4144	+	Object[] args = new Object[parameterTypes.length];
4145	+	// Manufacture boxed primitives for primitive params
4146	+	for (int i = 0; i < args.length; i++) {
4147	+	Class<?> type = parameterTypes[i];
4148	+	if (parameterTypes[i] == boolean.class)
4149	+	args[i] = false;
4150	+	else if (parameterTypes[i] == int.class)
4151	+	args[i] = 0;
4152	+	else if (parameterTypes[i] == long.class)
4153	+	args[i] = 0L;
4154	+	}
4155	+	for (CompletionStage<Integer> stage : stages) {
4156	+	try {
4157	+	method.invoke(stage, args);
4158	+	bugs.add(method);
4159	+	}
4160	+	catch (java.lang.reflect.InvocationTargetException expected) {
4161	+	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4162	+	bugs.add(method);
4163	+	// expected.getCause().printStackTrace();
4164	+	}
4165	+	}
4166	+	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4167	+	}
4168	+	}
4169	+	if (!bugs.isEmpty())
4170	+	throw new Error("Methods did not throw UOE: " + bugs);
4171	+	}
4172	+
4173	+	/**
4174	+	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4175	+	* is completed normally, with the same value, when source is.
4176	+	*/
4177	+	public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() {
4178	+	for (boolean createIncomplete : new boolean[] { true, false })
4179	+	for (Integer v1 : new Integer[] { 1, null })
4180	+	{
4181	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4182	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4183	+	if (!createIncomplete) assertTrue(f.complete(v1));
4184	+	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4185	+	if (createIncomplete) {
4186	+	checkIncomplete(f);
4187	+	checkIncomplete(g);
4188	+	assertTrue(f.complete(v1));
4189	+	}
4190	+	checkCompletedNormally(f, v1);
4191	+	checkCompletedNormally(g, v1);
4192	+	}}
4193	+
4194	+	/**
4195	+	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4196	+	* is completed exceptionally when source is.
4197	+	*/
4198	+	public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() {
4199	+	for (boolean createIncomplete : new boolean[] { true, false })
4200	+	{
4201	+	CFException ex = new CFException();
4202	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4203	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4204	+	if (!createIncomplete) f.completeExceptionally(ex);
4205	+	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4206	+	if (createIncomplete) {
4207	+	checkIncomplete(f);
4208	+	checkIncomplete(g);
4209	+	f.completeExceptionally(ex);
4210	+	}
4211	+	checkCompletedExceptionally(f, ex);
4212	+	checkCompletedWithWrappedException(g, ex);
4213	+	}}
4214	+
4215	+	/**
4216	+	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4217	+	*/
4218	+	public void testMinimalCompletionStage_toCompletableFuture_mutable() {
4219	+	for (Integer v1 : new Integer[] { 1, null })
4220	+	{
4221	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4222	+	CompletionStage minimal = f.minimalCompletionStage();
4223	+	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4224	+	assertTrue(g.complete(v1));
4225	+	checkCompletedNormally(g, v1);
4226	+	checkIncomplete(f);
4227	+	checkIncomplete(minimal.toCompletableFuture());
4228	+	}}
4229	+
4230	+	/**
4231	+	* minimalStage.toCompletableFuture().join() awaits completion
4232	+	*/
4233	+	public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception {
4234	+	for (boolean createIncomplete : new boolean[] { true, false })
4235	+	for (Integer v1 : new Integer[] { 1, null })
4236	+	{
4237	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4238	+	if (!createIncomplete) assertTrue(f.complete(v1));
4239	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4240	+	if (createIncomplete) assertTrue(f.complete(v1));
4241	+	assertEquals(v1, minimal.toCompletableFuture().join());
4242	+	assertEquals(v1, minimal.toCompletableFuture().get());
4243	+	checkCompletedNormally(minimal.toCompletableFuture(), v1);
4244	+	}}
4245	+
4246	+	/**
4247	+	* Completion of a toCompletableFuture copy of a minimal stage
4248	+	* does not complete its source.
4249	+	*/
4250	+	public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() {
4251	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4252	+	CompletionStage<Integer> g = f.minimalCompletionStage();
4253	+	assertTrue(g.toCompletableFuture().complete(1));
4254	+	assertTrue(g.toCompletableFuture().complete(null));
4255	+	assertTrue(g.toCompletableFuture().cancel(true));
4256	+	assertTrue(g.toCompletableFuture().cancel(false));
4257	+	assertTrue(g.toCompletableFuture().completeExceptionally(new CFException()));
4258	+	checkIncomplete(g.toCompletableFuture());
4259	+	f.complete(1);
4260	+	checkCompletedNormally(g.toCompletableFuture(), 1);
4261	+	}
4262	+
4263	+	/** Demo utility method for external reliable toCompletableFuture */
4264	+	static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) {
4265	+	CompletableFuture<T> f = new CompletableFuture<>();
4266	+	stage.handle((T t, Throwable ex) -> {
4267	+	if (ex != null) f.completeExceptionally(ex);
4268	+	else f.complete(t);
4269	+	return null;
4270	+	});
4271	+	return f;
4272	+	}
4273	+
4274	+	/** Demo utility method to join a CompletionStage */
4275	+	static <T> T join(CompletionStage<T> stage) {
4276	+	return toCompletableFuture(stage).join();
4277	+	}
4278	+
4279	+	/**
4280	+	* Joining a minimal stage "by hand" works
4281	+	*/
4282	+	public void testMinimalCompletionStage_join_by_hand() {
4283	+	for (boolean createIncomplete : new boolean[] { true, false })
4284	+	for (Integer v1 : new Integer[] { 1, null })
4285	+	{
4286	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4287	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4288	+	CompletableFuture<Integer> g = new CompletableFuture<>();
4289	+	if (!createIncomplete) assertTrue(f.complete(v1));
4290	+	minimal.thenAccept(x -> g.complete(x));
4291	+	if (createIncomplete) assertTrue(f.complete(v1));
4292	+	g.join();
4293	+	checkCompletedNormally(g, v1);
4294	+	checkCompletedNormally(f, v1);
4295	+	assertEquals(v1, join(minimal));
4296	+	}}
4297	+
4298	+	static class Monad {
4299	+	static class ZeroException extends RuntimeException {
4300	+	public ZeroException() { super("monadic zero"); }
4301	+	}
4302	+	// "return", "unit"
4303	+	static <T> CompletableFuture<T> unit(T value) {
4304	+	return completedFuture(value);
4305	+	}
4306	+	// monadic zero ?
4307	+	static <T> CompletableFuture<T> zero() {
4308	+	return failedFuture(new ZeroException());
4309	+	}
4310	+	// >=>
4311	+	static <T,U,V> Function<T, CompletableFuture<V>> compose
4312	+	(Function<T, CompletableFuture<U>> f,
4313	+	Function<U, CompletableFuture<V>> g) {
4314	+	return x -> f.apply(x).thenCompose(g);
4315	+	}
4316	+
4317	+	static void assertZero(CompletableFuture<?> f) {
4318	+	try {
4319	+	f.getNow(null);
4320	+	throw new AssertionError("should throw");
4321	+	} catch (CompletionException success) {
4322	+	assertTrue(success.getCause() instanceof ZeroException);
4323	+	}
4324	+	}
4325	+
4326	+	static <T> void assertFutureEquals(CompletableFuture<T> f,
4327	+	CompletableFuture<T> g) {
4328	+	T fval = null, gval = null;
4329	+	Throwable fex = null, gex = null;
4330	+
4331	+	try { fval = f.get(); }
4332	+	catch (ExecutionException ex) { fex = ex.getCause(); }
4333	+	catch (Throwable ex) { fex = ex; }
4334	+
4335	+	try { gval = g.get(); }
4336	+	catch (ExecutionException ex) { gex = ex.getCause(); }
4337	+	catch (Throwable ex) { gex = ex; }
4338	+
4339	+	if (fex != null || gex != null)
4340	+	assertSame(fex.getClass(), gex.getClass());
4341	+	else
4342	+	assertEquals(fval, gval);
4343	+	}
4344	+
4345	+	static class PlusFuture<T> extends CompletableFuture<T> {
4346	+	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4347	+	}
4348	+
4349	+	/** Implements "monadic plus". */
4350	+	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
4351	+	CompletableFuture<? extends T> g) {
4352	+	PlusFuture<T> plus = new PlusFuture<T>();
4353	+	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
4354	+	try {
4355	+	if (ex == null) {
4356	+	if (plus.complete(result))
4357	+	if (plus.firstFailure.get() != null)
4358	+	plus.firstFailure.set(null);
4359	+	}
4360	+	else if (plus.firstFailure.compareAndSet(null, ex)) {
4361	+	if (plus.isDone())
4362	+	plus.firstFailure.set(null);
4363	+	}
4364	+	else {
4365	+	// first failure has precedence
4366	+	Throwable first = plus.firstFailure.getAndSet(null);
4367	+
4368	+	// may fail with "Self-suppression not permitted"
4369	+	try { first.addSuppressed(ex); }
4370	+	catch (Exception ignored) {}
4371	+
4372	+	plus.completeExceptionally(first);
4373	+	}
4374	+	} catch (Throwable unexpected) {
4375	+	plus.completeExceptionally(unexpected);
4376	+	}
4377	+	};
4378	+	f.whenComplete(action);
4379	+	g.whenComplete(action);
4380	+	return plus;
4381	+	}
4382	+	}
4383	+
4384	+	/**
4385	+	* CompletableFuture is an additive monad - sort of.
4386	+	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
4387	+	*/
4388	+	public void testAdditiveMonad() throws Throwable {
4389	+	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
4390	+	CompletableFuture<Long> zero = Monad.zero();
4391	+
4392	+	// Some mutually non-commutative functions
4393	+	Function<Long, CompletableFuture<Long>> triple
4394	+	= x -> Monad.unit(3 * x);
4395	+	Function<Long, CompletableFuture<Long>> inc
4396	+	= x -> Monad.unit(x + 1);
4397	+
4398	+	// unit is a right identity: m >>= unit === m
4399	+	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
4400	+	inc.apply(5L));
4401	+	// unit is a left identity: (unit x) >>= f === f x
4402	+	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
4403	+	inc.apply(5L));
4404	+
4405	+	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4406	+	Monad.assertFutureEquals(
4407	+	unit.apply(5L).thenCompose(inc).thenCompose(triple),
4408	+	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4409	+
4410	+	// The case for CompletableFuture as an additive monad is weaker...
4411	+
4412	+	// zero is a monadic zero
4413	+	Monad.assertZero(zero);
4414	+
4415	+	// left zero: zero >>= f === zero
4416	+	Monad.assertZero(zero.thenCompose(inc));
4417	+	// right zero: f >>= (\x -> zero) === zero
4418	+	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4419	+
4420	+	// f plus zero === f
4421	+	Monad.assertFutureEquals(Monad.unit(5L),
4422	+	Monad.plus(Monad.unit(5L), zero));
4423	+	// zero plus f === f
4424	+	Monad.assertFutureEquals(Monad.unit(5L),
4425	+	Monad.plus(zero, Monad.unit(5L)));
4426	+	// zero plus zero === zero
4427	+	Monad.assertZero(Monad.plus(zero, zero));
4428	+	{
4429	+	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
4430	+	Monad.unit(8L));
4431	+	// non-determinism
4432	+	assertTrue(f.get() == 5L || f.get() == 8L);
4433	+	}
4434	+
4435	+	CompletableFuture<Long> godot = new CompletableFuture<>();
4436	+	// f plus godot === f (doesn't wait for godot)
4437	+	Monad.assertFutureEquals(Monad.unit(5L),
4438	+	Monad.plus(Monad.unit(5L), godot));
4439	+	// godot plus f === f (doesn't wait for godot)
4440	+	Monad.assertFutureEquals(Monad.unit(5L),
4441	+	Monad.plus(godot, Monad.unit(5L)));
4442	+	}
4443	+
4444	+	/** Test long recursive chains of CompletableFutures with cascading completions */
4445	+	@SuppressWarnings("FutureReturnValueIgnored")
4446	+	public void testRecursiveChains() throws Throwable {
4447	+	for (ExecutionMode m : ExecutionMode.values())
4448	+	for (boolean addDeadEnds : new boolean[] { true, false })
4449	+	{
4450	+	final int val = 42;
4451	+	final int n = expensiveTests ? 1_000 : 2;
4452	+	CompletableFuture<Integer> head = new CompletableFuture<>();
4453	+	CompletableFuture<Integer> tail = head;
4454	+	for (int i = 0; i < n; i++) {
4455	+	if (addDeadEnds) m.thenApply(tail, v -> v + 1);
4456	+	tail = m.thenApply(tail, v -> v + 1);
4457	+	if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1);
4458	+	tail = m.applyToEither(tail, tail, v -> v + 1);
4459	+	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1);
4460	+	tail = m.thenCombine(tail, tail, (v, w) -> v + 1);
4461	+	}
4462	+	head.complete(val);
4463	+	assertEquals(val + 3 * n, (int) tail.join());
4464	+	}}
4465	+
4466	+	/**
4467	+	* A single CompletableFuture with many dependents.
4468	+	* A demo of scalability - runtime is O(n).
4469	+	*/
4470	+	@SuppressWarnings("FutureReturnValueIgnored")
4471	+	public void testManyDependents() throws Throwable {
4472	+	final int n = expensiveTests ? 1_000_000 : 10;
4473	+	final CompletableFuture<Void> head = new CompletableFuture<>();
4474	+	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4475	+	final AtomicInteger count = new AtomicInteger(0);
4476	+	for (int i = 0; i < n; i++) {
4477	+	head.thenRun(() -> count.getAndIncrement());
4478	+	head.thenAccept(x -> count.getAndIncrement());
4479	+	head.thenApply(x -> count.getAndIncrement());
4480	+
4481	+	head.runAfterBoth(complete, () -> count.getAndIncrement());
4482	+	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
4483	+	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
4484	+	complete.runAfterBoth(head, () -> count.getAndIncrement());
4485	+	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
4486	+	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4487	+
4488	+	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4489	+	head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4490	+	head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4491	+	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4492	+	new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement());
4493	+	new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement());
4494	+	}
4495	+	head.complete(null);
4496	+	assertEquals(5 * 3 * n, count.get());
4497	+	}
4498	+
4499	+	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4500	+	@SuppressWarnings("FutureReturnValueIgnored")
4501	+	public void testCoCompletionGarbageRetention() throws Throwable {
4502	+	final int n = expensiveTests ? 1_000_000 : 10;
4503	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4504	+	CompletableFuture<Integer> f;
4505	+	for (int i = 0; i < n; i++) {
4506	+	f = new CompletableFuture<>();
4507	+	f.runAfterEither(incomplete, () -> {});
4508	+	f.complete(null);
4509	+
4510	+	f = new CompletableFuture<>();
4511	+	f.acceptEither(incomplete, x -> {});
4512	+	f.complete(null);
4513	+
4514	+	f = new CompletableFuture<>();
4515	+	f.applyToEither(incomplete, x -> x);
4516	+	f.complete(null);
4517	+
4518	+	f = new CompletableFuture<>();
4519	+	CompletableFuture.anyOf(f, incomplete);
4520	+	f.complete(null);
4521	+	}
4522	+
4523	+	for (int i = 0; i < n; i++) {
4524	+	f = new CompletableFuture<>();
4525	+	incomplete.runAfterEither(f, () -> {});
4526	+	f.complete(null);
4527	+
4528	+	f = new CompletableFuture<>();
4529	+	incomplete.acceptEither(f, x -> {});
4530	+	f.complete(null);
4531	+
4532	+	f = new CompletableFuture<>();
4533	+	incomplete.applyToEither(f, x -> x);
4534	+	f.complete(null);
4535	+
4536	+	f = new CompletableFuture<>();
4537	+	CompletableFuture.anyOf(incomplete, f);
4538	+	f.complete(null);
4539	+	}
4540	+	}
4541	+
4542	+	/**
4543	+	* Reproduction recipe for:
4544	+	* 8160402: Garbage retention with CompletableFuture.anyOf
4545	+	* 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
4546	+	*/
4547	+	public void testAnyOfGarbageRetention() throws Throwable {
4548	+	for (Integer v : new Integer[] { 1, null })
4549	+	{
4550	+	final int n = expensiveTests ? 100_000 : 10;
4551	+	CompletableFuture<Integer>[] fs
4552	+	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4553	+	for (int i = 0; i < fs.length; i++)
4554	+	fs[i] = new CompletableFuture<>();
4555	+	fs[fs.length - 1].complete(v);
4556	+	for (int i = 0; i < n; i++)
4557	+	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4558	+	}}
4559	+
4560	+	/**
4561	+	* Checks for garbage retention with allOf.
4562	+	*
4563	+	* As of 2016-07, fails with OOME:
4564	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4565	+	*/
4566	+	public void testCancelledAllOfGarbageRetention() throws Throwable {
4567	+	final int n = expensiveTests ? 100_000 : 10;
4568	+	CompletableFuture<Integer>[] fs
4569	+	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4570	+	for (int i = 0; i < fs.length; i++)
4571	+	fs[i] = new CompletableFuture<>();
4572	+	for (int i = 0; i < n; i++)
4573	+	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4574	+	}
4575	+
4576	+	/**
4577	+	* Checks for garbage retention when a dependent future is
4578	+	* cancelled and garbage-collected.
4579	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4580	+	*
4581	+	* As of 2016-07, fails with OOME:
4582	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4583	+	*/
4584	+	public void testCancelledGarbageRetention() throws Throwable {
4585	+	final int n = expensiveTests ? 100_000 : 10;
4586	+	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4587	+	for (int i = 0; i < n; i++)
4588	+	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4589	+	}
4590	+
4591	+	/**
4592	+	* Checks for garbage retention when MinimalStage.toCompletableFuture()
4593	+	* is invoked many times.
4594	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4595	+	*
4596	+	* As of 2016-07, fails with OOME:
4597	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck
4598	+	*/
4599	+	public void testToCompletableFutureGarbageRetention() throws Throwable {
4600	+	final int n = expensiveTests ? 900_000 : 10;
4601	+	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4602	+	CompletionStage minimal = neverCompleted.minimalCompletionStage();
4603	+	for (int i = 0; i < n; i++)
4604	+	assertTrue(minimal.toCompletableFuture().cancel(true));
4605	+	}
4606	+
4607	+	//     static <U> U join(CompletionStage<U> stage) {
4608	+	//         CompletableFuture<U> f = new CompletableFuture<>();
4609	+	//         stage.whenComplete((v, ex) -> {
4610	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4611	+	//         });
4612	+	//         return f.join();
4613	+	//     }
4614	+
4615	+	//     static <U> boolean isDone(CompletionStage<U> stage) {
4616	+	//         CompletableFuture<U> f = new CompletableFuture<>();
4617	+	//         stage.whenComplete((v, ex) -> {
4618	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4619	+	//         });
4620	+	//         return f.isDone();
4621	+	//     }
4622	+
4623	+	//     static <U> U join2(CompletionStage<U> stage) {
4624	+	//         return stage.toCompletableFuture().copy().join();
4625	+	//     }
4626	+
4627	+	//     static <U> boolean isDone2(CompletionStage<U> stage) {
4628	+	//         return stage.toCompletableFuture().copy().isDone();
4629	+	//     }
4630	+
4631	+	// For testing default implementations
4632	+	// Only non-default interface methods defined.
4633	+	static final class DelegatedCompletionStage<T> implements CompletionStage<T> {
4634	+	final CompletableFuture<T> cf;
4635	+	DelegatedCompletionStage(CompletableFuture<T> cf) { this.cf = cf; }
4636	+	public CompletableFuture<T> toCompletableFuture() {
4637	+	return cf; }
4638	+	public CompletionStage<Void> thenRun
4639	+	(Runnable action) {
4640	+	return cf.thenRun(action); }
4641	+	public CompletionStage<Void> thenRunAsync
4642	+	(Runnable action) {
4643	+	return cf.thenRunAsync(action); }
4644	+	public CompletionStage<Void> thenRunAsync
4645	+	(Runnable action,
4646	+	Executor executor) {
4647	+	return cf.thenRunAsync(action, executor); }
4648	+	public CompletionStage<Void> thenAccept
4649	+	(Consumer<? super T> action) {
4650	+	return cf.thenAccept(action); }
4651	+	public CompletionStage<Void> thenAcceptAsync
4652	+	(Consumer<? super T> action) {
4653	+	return cf.thenAcceptAsync(action); }
4654	+	public CompletionStage<Void> thenAcceptAsync
4655	+	(Consumer<? super T> action,
4656	+	Executor executor) {
4657	+	return cf.thenAcceptAsync(action, executor); }
4658	+	public <U> CompletionStage<U> thenApply
4659	+	(Function<? super T,? extends U> a) {
4660	+	return cf.thenApply(a); }
4661	+	public <U> CompletionStage<U> thenApplyAsync
4662	+	(Function<? super T,? extends U> fn) {
4663	+	return cf.thenApplyAsync(fn); }
4664	+	public <U> CompletionStage<U> thenApplyAsync
4665	+	(Function<? super T,? extends U> fn,
4666	+	Executor executor) {
4667	+	return cf.thenApplyAsync(fn, executor); }
4668	+	public <U,V> CompletionStage<V> thenCombine
4669	+	(CompletionStage<? extends U> other,
4670	+	BiFunction<? super T,? super U,? extends V> fn) {
4671	+	return cf.thenCombine(other, fn); }
4672	+	public <U,V> CompletionStage<V> thenCombineAsync
4673	+	(CompletionStage<? extends U> other,
4674	+	BiFunction<? super T,? super U,? extends V> fn) {
4675	+	return cf.thenCombineAsync(other, fn); }
4676	+	public <U,V> CompletionStage<V> thenCombineAsync
4677	+	(CompletionStage<? extends U> other,
4678	+	BiFunction<? super T,? super U,? extends V> fn,
4679	+	Executor executor) {
4680	+	return cf.thenCombineAsync(other, fn, executor); }
4681	+	public <U> CompletionStage<Void> thenAcceptBoth
4682	+	(CompletionStage<? extends U> other,
4683	+	BiConsumer<? super T, ? super U> action) {
4684	+	return cf.thenAcceptBoth(other, action); }
4685	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4686	+	(CompletionStage<? extends U> other,
4687	+	BiConsumer<? super T, ? super U> action) {
4688	+	return cf.thenAcceptBothAsync(other, action); }
4689	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4690	+	(CompletionStage<? extends U> other,
4691	+	BiConsumer<? super T, ? super U> action,
4692	+	Executor executor) {
4693	+	return cf.thenAcceptBothAsync(other, action, executor); }
4694	+	public CompletionStage<Void> runAfterBoth
4695	+	(CompletionStage<?> other,
4696	+	Runnable action) {
4697	+	return cf.runAfterBoth(other, action); }
4698	+	public CompletionStage<Void> runAfterBothAsync
4699	+	(CompletionStage<?> other,
4700	+	Runnable action) {
4701	+	return cf.runAfterBothAsync(other, action); }
4702	+	public CompletionStage<Void> runAfterBothAsync
4703	+	(CompletionStage<?> other,
4704	+	Runnable action,
4705	+	Executor executor) {
4706	+	return cf.runAfterBothAsync(other, action, executor); }
4707	+	public <U> CompletionStage<U> applyToEither
4708	+	(CompletionStage<? extends T> other,
4709	+	Function<? super T, U> fn) {
4710	+	return cf.applyToEither(other, fn); }
4711	+	public <U> CompletionStage<U> applyToEitherAsync
4712	+	(CompletionStage<? extends T> other,
4713	+	Function<? super T, U> fn) {
4714	+	return cf.applyToEitherAsync(other, fn); }
4715	+	public <U> CompletionStage<U> applyToEitherAsync
4716	+	(CompletionStage<? extends T> other,
4717	+	Function<? super T, U> fn,
4718	+	Executor executor) {
4719	+	return cf.applyToEitherAsync(other, fn, executor); }
4720	+	public CompletionStage<Void> acceptEither
4721	+	(CompletionStage<? extends T> other,
4722	+	Consumer<? super T> action) {
4723	+	return cf.acceptEither(other, action); }
4724	+	public CompletionStage<Void> acceptEitherAsync
4725	+	(CompletionStage<? extends T> other,
4726	+	Consumer<? super T> action) {
4727	+	return cf.acceptEitherAsync(other, action); }
4728	+	public CompletionStage<Void> acceptEitherAsync
4729	+	(CompletionStage<? extends T> other,
4730	+	Consumer<? super T> action,
4731	+	Executor executor) {
4732	+	return cf.acceptEitherAsync(other, action, executor); }
4733	+	public CompletionStage<Void> runAfterEither
4734	+	(CompletionStage<?> other,
4735	+	Runnable action) {
4736	+	return cf.runAfterEither(other, action); }
4737	+	public CompletionStage<Void> runAfterEitherAsync
4738	+	(CompletionStage<?> other,
4739	+	Runnable action) {
4740	+	return cf.runAfterEitherAsync(other, action); }
4741	+	public CompletionStage<Void> runAfterEitherAsync
4742	+	(CompletionStage<?> other,
4743	+	Runnable action,
4744	+	Executor executor) {
4745	+	return cf.runAfterEitherAsync(other, action, executor); }
4746	+	public <U> CompletionStage<U> thenCompose
4747	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4748	+	return cf.thenCompose(fn); }
4749	+	public <U> CompletionStage<U> thenComposeAsync
4750	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4751	+	return cf.thenComposeAsync(fn); }
4752	+	public <U> CompletionStage<U> thenComposeAsync
4753	+	(Function<? super T, ? extends CompletionStage<U>> fn,
4754	+	Executor executor) {
4755	+	return cf.thenComposeAsync(fn, executor); }
4756	+	public <U> CompletionStage<U> handle
4757	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4758	+	return cf.handle(fn); }
4759	+	public <U> CompletionStage<U> handleAsync
4760	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4761	+	return cf.handleAsync(fn); }
4762	+	public <U> CompletionStage<U> handleAsync
4763	+	(BiFunction<? super T, Throwable, ? extends U> fn,
4764	+	Executor executor) {
4765	+	return cf.handleAsync(fn, executor); }
4766	+	public CompletionStage<T> whenComplete
4767	+	(BiConsumer<? super T, ? super Throwable> action) {
4768	+	return cf.whenComplete(action); }
4769	+	public CompletionStage<T> whenCompleteAsync
4770	+	(BiConsumer<? super T, ? super Throwable> action) {
4771	+	return cf.whenCompleteAsync(action); }
4772	+	public CompletionStage<T> whenCompleteAsync
4773	+	(BiConsumer<? super T, ? super Throwable> action,
4774	+	Executor executor) {
4775	+	return cf.whenCompleteAsync(action, executor); }
4776	+	public CompletionStage<T> exceptionally
4777	+	(Function<Throwable, ? extends T> fn) {
4778	+	return cf.exceptionally(fn); }
4779	+	}
4780	+
4781	+	/**
4782	+	* default-implemented exceptionallyAsync action is not invoked when
4783	+	* source completes normally, and source result is propagated
4784	+	*/
4785	+	public void testDefaultExceptionallyAsync_normalCompletion() {
4786	+	for (boolean createIncomplete : new boolean[] { true, false })
4787	+	for (Integer v1 : new Integer[] { 1, null })
4788	+	{
4789	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4790	+	final DelegatedCompletionStage<Integer> d =
4791	+	new DelegatedCompletionStage<Integer>(f);
4792	+	if (!createIncomplete) assertTrue(f.complete(v1));
4793	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4794	+	((Throwable t) -> {
4795	+	threadFail("should not be called");
4796	+	return null;            // unreached
4797	+	});
4798	+	if (createIncomplete) assertTrue(f.complete(v1));
4799	+
4800	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4801	+	}}
4802	+
4803	+	/**
4804	+	* default-implemented exceptionallyAsync action completes with
4805	+	* function value on source exception
4806	+	*/
4807	+	public void testDefaultExceptionallyAsync_exceptionalCompletion() {
4808	+	for (boolean createIncomplete : new boolean[] { true, false })
4809	+	for (Integer v1 : new Integer[] { 1, null })
4810	+	{
4811	+	final AtomicInteger a = new AtomicInteger(0);
4812	+	final CFException ex = new CFException();
4813	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4814	+	final DelegatedCompletionStage<Integer> d =
4815	+	new DelegatedCompletionStage<Integer>(f);
4816	+	if (!createIncomplete) f.completeExceptionally(ex);
4817	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4818	+	((Throwable t) -> {
4819	+	threadAssertSame(t, ex);
4820	+	a.getAndIncrement();
4821	+	return v1;
4822	+	});
4823	+	if (createIncomplete) f.completeExceptionally(ex);
4824	+
4825	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4826	+	assertEquals(1, a.get());
4827	+	}}
4828	+
4829	+	/**
4830	+	* Under default implementation, if an "exceptionally action"
4831	+	* throws an exception, it completes exceptionally with that
4832	+	* exception
4833	+	*/
4834	+	public void testDefaultExceptionallyAsync_exceptionalCompletionActionFailed() {
4835	+	for (boolean createIncomplete : new boolean[] { true, false })
4836	+	{
4837	+	final AtomicInteger a = new AtomicInteger(0);
4838	+	final CFException ex1 = new CFException();
4839	+	final CFException ex2 = new CFException();
4840	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4841	+	final DelegatedCompletionStage<Integer> d =
4842	+	new DelegatedCompletionStage<Integer>(f);
4843	+	if (!createIncomplete) f.completeExceptionally(ex1);
4844	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4845	+	((Throwable t) -> {
4846	+	threadAssertSame(t, ex1);
4847	+	a.getAndIncrement();
4848	+	throw ex2;
4849	+	});
4850	+	if (createIncomplete) f.completeExceptionally(ex1);
4851	+
4852	+	checkCompletedWithWrappedException(g.toCompletableFuture(), ex2);
4853	+	checkCompletedExceptionally(f, ex1);
4854	+	checkCompletedExceptionally(d.toCompletableFuture(), ex1);
4855	+	assertEquals(1, a.get());
4856	+	}}
4857	+
4858	+	/**
4859	+	* default exceptionallyCompose result completes normally after normal
4860	+	* completion of source
4861	+	*/
4862	+	public void testDefaultExceptionallyCompose_normalCompletion() {
4863	+	for (boolean createIncomplete : new boolean[] { true, false })
4864	+	for (Integer v1 : new Integer[] { 1, null })
4865	+	{
4866	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4867	+	final ExceptionalCompletableFutureFunction r =
4868	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4869	+	final DelegatedCompletionStage<Integer> d =
4870	+	new DelegatedCompletionStage<Integer>(f);
4871	+	if (!createIncomplete) assertTrue(f.complete(v1));
4872	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4873	+	if (createIncomplete) assertTrue(f.complete(v1));
4874	+
4875	+	checkCompletedNormally(f, v1);
4876	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4877	+	r.assertNotInvoked();
4878	+	}}
4879	+
4880	+	/**
4881	+	* default-implemented exceptionallyCompose result completes
4882	+	* normally after exceptional completion of source
4883	+	*/
4884	+	public void testDefaultExceptionallyCompose_exceptionalCompletion() {
4885	+	for (boolean createIncomplete : new boolean[] { true, false })
4886	+	{
4887	+	final CFException ex = new CFException();
4888	+	final ExceptionalCompletableFutureFunction r =
4889	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4890	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4891	+	final DelegatedCompletionStage<Integer> d =
4892	+	new DelegatedCompletionStage<Integer>(f);
4893	+	if (!createIncomplete) f.completeExceptionally(ex);
4894	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4895	+	if (createIncomplete) f.completeExceptionally(ex);
4896	+
4897	+	checkCompletedExceptionally(f, ex);
4898	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
4899	+	r.assertInvoked();
4900	+	}}
4901	+
4902	+	/**
4903	+	* default-implemented exceptionallyCompose completes
4904	+	* exceptionally on exception if action does
4905	+	*/
4906	+	public void testDefaultExceptionallyCompose_actionFailed() {
4907	+	for (boolean createIncomplete : new boolean[] { true, false })
4908	+	for (Integer v1 : new Integer[] { 1, null })
4909	+	{
4910	+	final CFException ex = new CFException();
4911	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4912	+	final FailingExceptionalCompletableFutureFunction r
4913	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4914	+	final DelegatedCompletionStage<Integer> d =
4915	+	new DelegatedCompletionStage<Integer>(f);
4916	+	if (!createIncomplete) f.completeExceptionally(ex);
4917	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4918	+	if (createIncomplete) f.completeExceptionally(ex);
4919	+
4920	+	checkCompletedExceptionally(f, ex);
4921	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4922	+	r.assertInvoked();
4923	+	}}
4924	+
4925	+	/**
4926	+	* default exceptionallyComposeAsync result completes normally after normal
4927	+	* completion of source
4928	+	*/
4929	+	public void testDefaultExceptionallyComposeAsync_normalCompletion() {
4930	+	for (boolean createIncomplete : new boolean[] { true, false })
4931	+	for (Integer v1 : new Integer[] { 1, null })
4932	+	{
4933	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4934	+	final ExceptionalCompletableFutureFunction r =
4935	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4936	+	final DelegatedCompletionStage<Integer> d =
4937	+	new DelegatedCompletionStage<Integer>(f);
4938	+	if (!createIncomplete) assertTrue(f.complete(v1));
4939	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4940	+	if (createIncomplete) assertTrue(f.complete(v1));
4941	+
4942	+	checkCompletedNormally(f, v1);
4943	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4944	+	r.assertNotInvoked();
4945	+	}}
4946	+
4947	+	/**
4948	+	* default-implemented exceptionallyComposeAsync result completes
4949	+	* normally after exceptional completion of source
4950	+	*/
4951	+	public void testDefaultExceptionallyComposeAsync_exceptionalCompletion() {
4952	+	for (boolean createIncomplete : new boolean[] { true, false })
4953	+	{
4954	+	final CFException ex = new CFException();
4955	+	final ExceptionalCompletableFutureFunction r =
4956	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4957	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4958	+	final DelegatedCompletionStage<Integer> d =
4959	+	new DelegatedCompletionStage<Integer>(f);
4960	+	if (!createIncomplete) f.completeExceptionally(ex);
4961	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4962	+	if (createIncomplete) f.completeExceptionally(ex);
4963	+
4964	+	checkCompletedExceptionally(f, ex);
4965	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
4966	+	r.assertInvoked();
4967	+	}}
4968	+
4969	+	/**
4970	+	* default-implemented exceptionallyComposeAsync completes
4971	+	* exceptionally on exception if action does
4972	+	*/
4973	+	public void testDefaultExceptionallyComposeAsync_actionFailed() {
4974	+	for (boolean createIncomplete : new boolean[] { true, false })
4975	+	for (Integer v1 : new Integer[] { 1, null })
4976	+	{
4977	+	final CFException ex = new CFException();
4978	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4979	+	final FailingExceptionalCompletableFutureFunction r
4980	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4981	+	final DelegatedCompletionStage<Integer> d =
4982	+	new DelegatedCompletionStage<Integer>(f);
4983	+	if (!createIncomplete) f.completeExceptionally(ex);
4984	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4985	+	if (createIncomplete) f.completeExceptionally(ex);
4986	+
4987	+	checkCompletedExceptionally(f, ex);
4988	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4989	+	r.assertInvoked();
4990	+	}}
4991	+
4992	+
4993	+	/**
4994	+	* default exceptionallyComposeAsync result completes normally after normal
4995	+	* completion of source
4996	+	*/
4997	+	public void testDefaultExceptionallyComposeAsyncExecutor_normalCompletion() {
4998	+	for (boolean createIncomplete : new boolean[] { true, false })
4999	+	for (Integer v1 : new Integer[] { 1, null })
5000	+	{
5001	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5002	+	final ExceptionalCompletableFutureFunction r =
5003	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5004	+	final DelegatedCompletionStage<Integer> d =
5005	+	new DelegatedCompletionStage<Integer>(f);
5006	+	if (!createIncomplete) assertTrue(f.complete(v1));
5007	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5008	+	if (createIncomplete) assertTrue(f.complete(v1));
5009	+
5010	+	checkCompletedNormally(f, v1);
5011	+	checkCompletedNormally(g.toCompletableFuture(), v1);
5012	+	r.assertNotInvoked();
5013	+	}}
5014	+
5015	+	/**
5016	+	* default-implemented exceptionallyComposeAsync result completes
5017	+	* normally after exceptional completion of source
5018	+	*/
5019	+	public void testDefaultExceptionallyComposeAsyncExecutor_exceptionalCompletion() {
5020	+	for (boolean createIncomplete : new boolean[] { true, false })
5021	+	{
5022	+	final CFException ex = new CFException();
5023	+	final ExceptionalCompletableFutureFunction r =
5024	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5025	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5026	+	final DelegatedCompletionStage<Integer> d =
5027	+	new DelegatedCompletionStage<Integer>(f);
5028	+	if (!createIncomplete) f.completeExceptionally(ex);
5029	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5030	+	if (createIncomplete) f.completeExceptionally(ex);
5031	+
5032	+	checkCompletedExceptionally(f, ex);
5033	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5034	+	r.assertInvoked();
5035	+	}}
5036	+
5037	+	/**
5038	+	* default-implemented exceptionallyComposeAsync completes
5039	+	* exceptionally on exception if action does
5040	+	*/
5041	+	public void testDefaultExceptionallyComposeAsyncExecutor_actionFailed() {
5042	+	for (boolean createIncomplete : new boolean[] { true, false })
5043	+	for (Integer v1 : new Integer[] { 1, null })
5044	+	{
5045	+	final CFException ex = new CFException();
5046	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5047	+	final FailingExceptionalCompletableFutureFunction r
5048	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5049	+	final DelegatedCompletionStage<Integer> d =
5050	+	new DelegatedCompletionStage<Integer>(f);
5051	+	if (!createIncomplete) f.completeExceptionally(ex);
5052	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5053	+	if (createIncomplete) f.completeExceptionally(ex);
5054	+
5055	+	checkCompletedExceptionally(f, ex);
5056	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5057	+	r.assertInvoked();
5058	+	}}
5059	+
5060		}

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