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

Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.83 by jsr166, Mon Jun 16 20:16:32 2014 UTC vs.
Revision 1.202 by jsr166, Sat Sep 22 22:23:08 2018 UTC

#	Line 5 | Line 5
5		* http://creativecommons.org/publicdomain/zero/1.0/
6		*/
7
8	<	import junit.framework.*;
8	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
9	>	import static java.util.concurrent.TimeUnit.SECONDS;
10	>	import static java.util.concurrent.CompletableFuture.completedFuture;
11	>	import static java.util.concurrent.CompletableFuture.failedFuture;
12	>
13	>	import java.lang.reflect.Method;
14	>	import java.lang.reflect.Modifier;
15	>
16	>	import java.util.stream.Collectors;
17	>	import java.util.stream.Stream;
18	>
19	>	import java.util.ArrayList;
20	>	import java.util.Arrays;
21	>	import java.util.List;
22	>	import java.util.Objects;
23	>	import java.util.Set;
24		import java.util.concurrent.Callable;
10	–	import java.util.concurrent.Executor;
11	–	import java.util.concurrent.ExecutorService;
12	–	import java.util.concurrent.Executors;
25		import java.util.concurrent.CancellationException;
14	–	import java.util.concurrent.CountDownLatch;
15	–	import java.util.concurrent.ExecutionException;
16	–	import java.util.concurrent.Future;
26		import java.util.concurrent.CompletableFuture;
27		import java.util.concurrent.CompletionException;
28		import java.util.concurrent.CompletionStage;
29	+	import java.util.concurrent.ExecutionException;
30	+	import java.util.concurrent.Executor;
31		import java.util.concurrent.ForkJoinPool;
32		import java.util.concurrent.ForkJoinTask;
33	+	import java.util.concurrent.RejectedExecutionException;
34		import java.util.concurrent.TimeoutException;
35		import java.util.concurrent.atomic.AtomicInteger;
36	<	import static java.util.concurrent.TimeUnit.MILLISECONDS;
25	<	import static java.util.concurrent.TimeUnit.SECONDS;
26	<	import java.util.*;
27	<	import java.util.function.Supplier;
28	<	import java.util.function.Consumer;
36	>	import java.util.concurrent.atomic.AtomicReference;
37		import java.util.function.BiConsumer;
30	–	import java.util.function.Function;
38		import java.util.function.BiFunction;
39	+	import java.util.function.Consumer;
40	+	import java.util.function.Function;
41	+	import java.util.function.Predicate;
42	+	import java.util.function.Supplier;
43	+
44	+	import junit.framework.Test;
45	+	import junit.framework.TestSuite;
46
47		public class CompletableFutureTest extends JSR166TestCase {
48
49		public static void main(String[] args) {
50	<	junit.textui.TestRunner.run(suite());
50	>	main(suite(), args);
51		}
52		public static Test suite() {
53		return new TestSuite(CompletableFutureTest.class);
#	Line 44 | Line 58 | public class CompletableFutureTest exten
58		void checkIncomplete(CompletableFuture<?> f) {
59		assertFalse(f.isDone());
60		assertFalse(f.isCancelled());
61	<	assertTrue(f.toString().contains("[Not completed]"));
61	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
62	>
63	>	Object result = null;
64		try {
65	<	assertNull(f.getNow(null));
65	>	result = f.getNow(null);
66		} catch (Throwable fail) { threadUnexpectedException(fail); }
67	+	assertNull(result);
68	+
69		try {
70	<	f.get(0L, SECONDS);
70	>	f.get(randomExpiredTimeout(), randomTimeUnit());
71		shouldThrow();
72		}
73		catch (TimeoutException success) {}
74		catch (Throwable fail) { threadUnexpectedException(fail); }
75		}
76
77	<	<T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
78	<	try {
79	<	assertEquals(value, f.get(LONG_DELAY_MS, MILLISECONDS));
80	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
81	<	try {
82	<	assertEquals(value, f.join());
83	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
66	<	try {
67	<	assertEquals(value, f.getNow(null));
68	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
77	>	<T> void checkCompletedNormally(CompletableFuture<T> f, T expectedValue) {
78	>	checkTimedGet(f, expectedValue);
79	>
80	>	assertEquals(expectedValue, f.join());
81	>	assertEquals(expectedValue, f.getNow(null));
82	>
83	>	T result = null;
84		try {
85	<	assertEquals(value, f.get());
85	>	result = f.get();
86		} catch (Throwable fail) { threadUnexpectedException(fail); }
87	+	assertEquals(expectedValue, result);
88	+
89		assertTrue(f.isDone());
90		assertFalse(f.isCancelled());
91		assertFalse(f.isCompletedExceptionally());
92	<	assertTrue(f.toString().contains("[Completed normally]"));
92	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
93		}
94
95	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
96	<	try {
97	<	f.get(LONG_DELAY_MS, MILLISECONDS);
98	<	shouldThrow();
99	<	} catch (ExecutionException success) {
100	<	assertTrue(success.getCause() instanceof CFException);
101	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
102	<	try {
86	<	f.join();
87	<	shouldThrow();
88	<	} catch (CompletionException success) {
89	<	assertTrue(success.getCause() instanceof CFException);
90	<	}
91	<	try {
92	<	f.getNow(null);
93	<	shouldThrow();
94	<	} catch (CompletionException success) {
95	<	assertTrue(success.getCause() instanceof CFException);
96	<	}
97	<	try {
98	<	f.get();
99	<	shouldThrow();
100	<	} catch (ExecutionException success) {
101	<	assertTrue(success.getCause() instanceof CFException);
102	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
103	<	assertTrue(f.isDone());
104	<	assertFalse(f.isCancelled());
105	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
95	>	/**
96	>	* Returns the "raw" internal exceptional completion of f,
97	>	* without any additional wrapping with CompletionException.
98	>	*/
99	>	Throwable exceptionalCompletion(CompletableFuture<?> f) {
100	>	// handle (and whenComplete and exceptionally) can distinguish
101	>	// between "direct" and "wrapped" exceptional completion
102	>	return f.handle((u, t) -> t).join();
103		}
104
105	<	<U> void checkCompletedExceptionallyWithRootCause(CompletableFuture<U> f,
106	<	Throwable ex) {
105	>	void checkCompletedExceptionally(CompletableFuture<?> f,
106	>	boolean wrapped,
107	>	Consumer<Throwable> checker) {
108	>	Throwable cause = exceptionalCompletion(f);
109	>	if (wrapped) {
110	>	assertTrue(cause instanceof CompletionException);
111	>	cause = cause.getCause();
112	>	}
113	>	checker.accept(cause);
114	>
115	>	long startTime = System.nanoTime();
116		try {
117		f.get(LONG_DELAY_MS, MILLISECONDS);
118		shouldThrow();
119		} catch (ExecutionException success) {
120	<	assertSame(ex, success.getCause());
120	>	assertSame(cause, success.getCause());
121		} catch (Throwable fail) { threadUnexpectedException(fail); }
122	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
123	+
124		try {
125		f.join();
126		shouldThrow();
127		} catch (CompletionException success) {
128	<	assertSame(ex, success.getCause());
129	<	}
128	>	assertSame(cause, success.getCause());
129	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
130	>
131		try {
132		f.getNow(null);
133		shouldThrow();
134		} catch (CompletionException success) {
135	<	assertSame(ex, success.getCause());
136	<	}
135	>	assertSame(cause, success.getCause());
136	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
137	>
138		try {
139		f.get();
140		shouldThrow();
141		} catch (ExecutionException success) {
142	<	assertSame(ex, success.getCause());
142	>	assertSame(cause, success.getCause());
143		} catch (Throwable fail) { threadUnexpectedException(fail); }
144
135	–	assertTrue(f.isDone());
145		assertFalse(f.isCancelled());
146	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
146	>	assertTrue(f.isDone());
147	>	assertTrue(f.isCompletedExceptionally());
148	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
149		}
150
151	<	<U> void checkCompletedWithWrappedException(CompletableFuture<U> f,
152	<	Throwable ex) {
153	<	checkCompletedExceptionallyWithRootCause(f, ex);
143	<	try {
144	<	CompletableFuture<Throwable> spy = f.handle
145	<	((U u, Throwable t) -> t);
146	<	assertTrue(spy.join() instanceof CompletionException);
147	<	assertSame(ex, spy.join().getCause());
148	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
151	>	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
152	>	checkCompletedExceptionally(f, true,
153	>	t -> assertTrue(t instanceof CFException));
154		}
155
156	<	<U> void checkCompletedExceptionally(CompletableFuture<U> f, Throwable ex) {
157	<	checkCompletedExceptionallyWithRootCause(f, ex);
158	<	try {
159	<	CompletableFuture<Throwable> spy = f.handle
160	<	((U u, Throwable t) -> t);
161	<	assertSame(ex, spy.join());
162	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
156	>	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
157	>	checkCompletedExceptionally(f, true,
158	>	t -> assertTrue(t instanceof CancellationException));
159	>	}
160	>
161	>	void checkCompletedWithTimeoutException(CompletableFuture<?> f) {
162	>	checkCompletedExceptionally(f, false,
163	>	t -> assertTrue(t instanceof TimeoutException));
164	>	}
165	>
166	>	void checkCompletedWithWrappedException(CompletableFuture<?> f,
167	>	Throwable ex) {
168	>	checkCompletedExceptionally(f, true, t -> assertSame(t, ex));
169	>	}
170	>
171	>	void checkCompletedExceptionally(CompletableFuture<?> f, Throwable ex) {
172	>	checkCompletedExceptionally(f, false, t -> assertSame(t, ex));
173		}
174
175		void checkCancelled(CompletableFuture<?> f) {
176	+	long startTime = System.nanoTime();
177		try {
178		f.get(LONG_DELAY_MS, MILLISECONDS);
179		shouldThrow();
180		} catch (CancellationException success) {
181		} catch (Throwable fail) { threadUnexpectedException(fail); }
182	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
183	+
184		try {
185		f.join();
186		shouldThrow();
#	Line 176 | Line 194 | public class CompletableFutureTest exten
194		shouldThrow();
195		} catch (CancellationException success) {
196		} catch (Throwable fail) { threadUnexpectedException(fail); }
179	–	assertTrue(f.isDone());
180	–	assertTrue(f.isCompletedExceptionally());
181	–	assertTrue(f.isCancelled());
182	–	assertTrue(f.toString().contains("[Completed exceptionally]"));
183	–	}
197
198	<	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
199	<	try {
187	<	f.get(LONG_DELAY_MS, MILLISECONDS);
188	<	shouldThrow();
189	<	} catch (ExecutionException success) {
190	<	assertTrue(success.getCause() instanceof CancellationException);
191	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
192	<	try {
193	<	f.join();
194	<	shouldThrow();
195	<	} catch (CompletionException success) {
196	<	assertTrue(success.getCause() instanceof CancellationException);
197	<	}
198	<	try {
199	<	f.getNow(null);
200	<	shouldThrow();
201	<	} catch (CompletionException success) {
202	<	assertTrue(success.getCause() instanceof CancellationException);
203	<	}
204	<	try {
205	<	f.get();
206	<	shouldThrow();
207	<	} catch (ExecutionException success) {
208	<	assertTrue(success.getCause() instanceof CancellationException);
209	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
198	>	assertTrue(exceptionalCompletion(f) instanceof CancellationException);
199	>
200		assertTrue(f.isDone());
211	–	assertFalse(f.isCancelled());
201		assertTrue(f.isCompletedExceptionally());
202	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
202	>	assertTrue(f.isCancelled());
203	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
204		}
205
206		/**
#	Line 257 | Line 247 | public class CompletableFutureTest exten
247		{
248		CompletableFuture<Integer> f = new CompletableFuture<>();
249		checkIncomplete(f);
250	<	assertTrue(f.cancel(true));
251	<	assertTrue(f.cancel(true));
250	>	assertTrue(f.cancel(mayInterruptIfRunning));
251	>	assertTrue(f.cancel(mayInterruptIfRunning));
252	>	assertTrue(f.cancel(!mayInterruptIfRunning));
253		checkCancelled(f);
254		}}
255
#	Line 308 | Line 299 | public class CompletableFutureTest exten
299		}
300
301		f = new CompletableFuture<>();
302	<	f.completeExceptionally(ex = new CFException());
302	>	f.completeExceptionally(new CFException());
303		f.obtrudeValue(v1);
304		checkCompletedNormally(f, v1);
305		f.obtrudeException(ex = new CFException());
#	Line 345 | Line 336 | public class CompletableFutureTest exten
336		/**
337		* toString indicates current completion state
338		*/
339	<	public void testToString() {
340	<	CompletableFuture<String> f;
341	<
342	<	f = new CompletableFuture<String>();
343	<	assertTrue(f.toString().contains("[Not completed]"));
339	>	public void testToString_incomplete() {
340	>	CompletableFuture<String> f = new CompletableFuture<>();
341	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
342	>	if (testImplementationDetails)
343	>	assertEquals(identityString(f) + "[Not completed]",
344	>	f.toString());
345	>	}
346
347	+	public void testToString_normal() {
348	+	CompletableFuture<String> f = new CompletableFuture<>();
349		assertTrue(f.complete("foo"));
350	<	assertTrue(f.toString().contains("[Completed normally]"));
350	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
351	>	if (testImplementationDetails)
352	>	assertEquals(identityString(f) + "[Completed normally]",
353	>	f.toString());
354	>	}
355
356	<	f = new CompletableFuture<String>();
356	>	public void testToString_exception() {
357	>	CompletableFuture<String> f = new CompletableFuture<>();
358		assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
359	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
359	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
360	>	if (testImplementationDetails)
361	>	assertTrue(f.toString().startsWith(
362	>	identityString(f) + "[Completed exceptionally: "));
363	>	}
364
365	+	public void testToString_cancelled() {
366		for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
367	<	f = new CompletableFuture<String>();
367	>	CompletableFuture<String> f = new CompletableFuture<>();
368		assertTrue(f.cancel(mayInterruptIfRunning));
369	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
369	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
370	>	if (testImplementationDetails)
371	>	assertTrue(f.toString().startsWith(
372	>	identityString(f) + "[Completed exceptionally: "));
373		}
374		}
375
#	Line 373 | Line 381 | public class CompletableFutureTest exten
381		checkCompletedNormally(f, "test");
382		}
383
384	<	abstract class CheckedAction {
384	>	abstract static class CheckedAction {
385		int invocationCount = 0;
386		final ExecutionMode m;
387		CheckedAction(ExecutionMode m) { this.m = m; }
#	Line 385 | Line 393 | public class CompletableFutureTest exten
393		void assertInvoked() { assertEquals(1, invocationCount); }
394		}
395
396	<	abstract class CheckedIntegerAction extends CheckedAction {
396	>	abstract static class CheckedIntegerAction extends CheckedAction {
397		Integer value;
398		CheckedIntegerAction(ExecutionMode m) { super(m); }
399		void assertValue(Integer expected) {
#	Line 394 | Line 402 | public class CompletableFutureTest exten
402		}
403		}
404
405	<	class IntegerSupplier extends CheckedAction
405	>	static class IntegerSupplier extends CheckedAction
406		implements Supplier<Integer>
407		{
408		final Integer value;
#	Line 413 | Line 421 | public class CompletableFutureTest exten
421		return (x == null) ? null : x + 1;
422		}
423
424	<	class NoopConsumer extends CheckedIntegerAction
424	>	static class NoopConsumer extends CheckedIntegerAction
425		implements Consumer<Integer>
426		{
427		NoopConsumer(ExecutionMode m) { super(m); }
#	Line 423 | Line 431 | public class CompletableFutureTest exten
431		}
432		}
433
434	<	class IncFunction extends CheckedIntegerAction
434	>	static class IncFunction extends CheckedIntegerAction
435		implements Function<Integer,Integer>
436		{
437		IncFunction(ExecutionMode m) { super(m); }
#	Line 441 | Line 449 | public class CompletableFutureTest exten
449		- ((y == null) ? 99 : y.intValue());
450		}
451
452	<	class SubtractAction extends CheckedIntegerAction
452	>	static class SubtractAction extends CheckedIntegerAction
453		implements BiConsumer<Integer, Integer>
454		{
455		SubtractAction(ExecutionMode m) { super(m); }
#	Line 451 | Line 459 | public class CompletableFutureTest exten
459		}
460		}
461
462	<	class SubtractFunction extends CheckedIntegerAction
462	>	static class SubtractFunction extends CheckedIntegerAction
463		implements BiFunction<Integer, Integer, Integer>
464		{
465		SubtractFunction(ExecutionMode m) { super(m); }
#	Line 461 | Line 469 | public class CompletableFutureTest exten
469		}
470		}
471
472	<	class Noop extends CheckedAction implements Runnable {
472	>	static class Noop extends CheckedAction implements Runnable {
473		Noop(ExecutionMode m) { super(m); }
474		public void run() {
475		invoked();
476		}
477		}
478
479	<	class FailingSupplier extends CheckedAction
479	>	static class FailingSupplier extends CheckedAction
480		implements Supplier<Integer>
481		{
482	<	FailingSupplier(ExecutionMode m) { super(m); }
482	>	final CFException ex;
483	>	FailingSupplier(ExecutionMode m) { super(m); ex = new CFException(); }
484		public Integer get() {
485		invoked();
486	<	throw new CFException();
486	>	throw ex;
487		}
488		}
489
490	<	class FailingConsumer extends CheckedIntegerAction
490	>	static class FailingConsumer extends CheckedIntegerAction
491		implements Consumer<Integer>
492		{
493	<	FailingConsumer(ExecutionMode m) { super(m); }
493	>	final CFException ex;
494	>	FailingConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
495		public void accept(Integer x) {
496		invoked();
497		value = x;
498	<	throw new CFException();
498	>	throw ex;
499		}
500		}
501
502	<	class FailingBiConsumer extends CheckedIntegerAction
502	>	static class FailingBiConsumer extends CheckedIntegerAction
503		implements BiConsumer<Integer, Integer>
504		{
505	<	FailingBiConsumer(ExecutionMode m) { super(m); }
505	>	final CFException ex;
506	>	FailingBiConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
507		public void accept(Integer x, Integer y) {
508		invoked();
509		value = subtract(x, y);
510	<	throw new CFException();
510	>	throw ex;
511		}
512		}
513
514	<	class FailingFunction extends CheckedIntegerAction
514	>	static class FailingFunction extends CheckedIntegerAction
515		implements Function<Integer, Integer>
516		{
517	<	FailingFunction(ExecutionMode m) { super(m); }
517	>	final CFException ex;
518	>	FailingFunction(ExecutionMode m) { super(m); ex = new CFException(); }
519		public Integer apply(Integer x) {
520		invoked();
521		value = x;
522	<	throw new CFException();
522	>	throw ex;
523		}
524		}
525
526	<	class FailingBiFunction extends CheckedIntegerAction
526	>	static class FailingBiFunction extends CheckedIntegerAction
527		implements BiFunction<Integer, Integer, Integer>
528		{
529	<	FailingBiFunction(ExecutionMode m) { super(m); }
529	>	final CFException ex;
530	>	FailingBiFunction(ExecutionMode m) { super(m); ex = new CFException(); }
531		public Integer apply(Integer x, Integer y) {
532		invoked();
533		value = subtract(x, y);
534	<	throw new CFException();
534	>	throw ex;
535		}
536		}
537
538	<	class FailingRunnable extends CheckedAction implements Runnable {
539	<	FailingRunnable(ExecutionMode m) { super(m); }
538	>	static class FailingRunnable extends CheckedAction implements Runnable {
539	>	final CFException ex;
540	>	FailingRunnable(ExecutionMode m) { super(m); ex = new CFException(); }
541		public void run() {
542		invoked();
543	<	throw new CFException();
543	>	throw ex;
544		}
545		}
546
547	<
534	<	class CompletableFutureInc extends CheckedIntegerAction
547	>	static class CompletableFutureInc extends CheckedIntegerAction
548		implements Function<Integer, CompletableFuture<Integer>>
549		{
550		CompletableFutureInc(ExecutionMode m) { super(m); }
#	Line 544 | Line 557 | public class CompletableFutureTest exten
557		}
558		}
559
560	<	class FailingCompletableFutureFunction extends CheckedIntegerAction
560	>	static class FailingExceptionalCompletableFutureFunction extends CheckedAction
561	>	implements Function<Throwable, CompletableFuture<Integer>>
562	>	{
563	>	final CFException ex;
564	>	FailingExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
565	>	public CompletableFuture<Integer> apply(Throwable x) {
566	>	invoked();
567	>	throw ex;
568	>	}
569	>	}
570	>
571	>	static class ExceptionalCompletableFutureFunction extends CheckedAction
572	>	implements Function<Throwable, CompletionStage<Integer>> {
573	>	final Integer value = 3;
574	>	ExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); }
575	>	public CompletionStage<Integer> apply(Throwable x) {
576	>	invoked();
577	>	return CompletableFuture.completedFuture(value);
578	>	}
579	>	}
580	>
581	>	static class FailingCompletableFutureFunction extends CheckedIntegerAction
582		implements Function<Integer, CompletableFuture<Integer>>
583		{
584	<	FailingCompletableFutureFunction(ExecutionMode m) { super(m); }
584	>	final CFException ex;
585	>	FailingCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
586		public CompletableFuture<Integer> apply(Integer x) {
587		invoked();
588		value = x;
589	<	throw new CFException();
589	>	throw ex;
590	>	}
591	>	}
592	>
593	>	static class CountingRejectingExecutor implements Executor {
594	>	final RejectedExecutionException ex = new RejectedExecutionException();
595	>	final AtomicInteger count = new AtomicInteger(0);
596	>	public void execute(Runnable r) {
597	>	count.getAndIncrement();
598	>	throw ex;
599		}
600		}
601
#	Line 569 | Line 613 | public class CompletableFutureTest exten
613		}
614		}
615
616	+	static final boolean defaultExecutorIsCommonPool
617	+	= ForkJoinPool.getCommonPoolParallelism() > 1;
618	+
619		/**
620		* Permits the testing of parallel code for the 3 different
621		* execution modes without copy/pasting all the test methods.
622		*/
623		enum ExecutionMode {
624	<	DEFAULT {
624	>	SYNC {
625		public void checkExecutionMode() {
626		assertFalse(ThreadExecutor.startedCurrentThread());
627		assertNull(ForkJoinTask.getPool());
#	Line 646 | Line 693 | public class CompletableFutureTest exten
693		Function<? super T,U> a) {
694		return f.applyToEither(g, a);
695		}
696	+	public <T> CompletableFuture<T> exceptionally
697	+	(CompletableFuture<T> f,
698	+	Function<Throwable, ? extends T> fn) {
699	+	return f.exceptionally(fn);
700	+	}
701	+	public <T> CompletableFuture<T> exceptionallyCompose
702	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
703	+	return f.exceptionallyCompose(fn);
704	+	}
705		},
650	–
706		ASYNC {
707		public void checkExecutionMode() {
708	<	assertSame(ForkJoinPool.commonPool(),
709	<	ForkJoinTask.getPool());
708	>	assertEquals(defaultExecutorIsCommonPool,
709	>	(ForkJoinPool.commonPool() == ForkJoinTask.getPool()));
710		}
711		public CompletableFuture<Void> runAsync(Runnable a) {
712		return CompletableFuture.runAsync(a);
#	Line 720 | Line 775 | public class CompletableFutureTest exten
775		Function<? super T,U> a) {
776		return f.applyToEitherAsync(g, a);
777		}
778	+	public <T> CompletableFuture<T> exceptionally
779	+	(CompletableFuture<T> f,
780	+	Function<Throwable, ? extends T> fn) {
781	+	return f.exceptionallyAsync(fn);
782	+	}
783	+
784	+	public <T> CompletableFuture<T> exceptionallyCompose
785	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
786	+	return f.exceptionallyComposeAsync(fn);
787	+	}
788	+
789		},
790
791		EXECUTOR {
#	Line 793 | Line 859 | public class CompletableFutureTest exten
859		Function<? super T,U> a) {
860		return f.applyToEitherAsync(g, a, new ThreadExecutor());
861		}
862	+	public <T> CompletableFuture<T> exceptionally
863	+	(CompletableFuture<T> f,
864	+	Function<Throwable, ? extends T> fn) {
865	+	return f.exceptionallyAsync(fn, new ThreadExecutor());
866	+	}
867	+	public <T> CompletableFuture<T> exceptionallyCompose
868	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
869	+	return f.exceptionallyComposeAsync(fn, new ThreadExecutor());
870	+	}
871	+
872		};
873
874		public abstract void checkExecutionMode();
#	Line 835 | Line 911 | public class CompletableFutureTest exten
911		(CompletableFuture<T> f,
912		CompletionStage<? extends T> g,
913		Function<? super T,U> a);
914	+	public abstract <T> CompletableFuture<T> exceptionally
915	+	(CompletableFuture<T> f,
916	+	Function<Throwable, ? extends T> fn);
917	+	public abstract <T> CompletableFuture<T> exceptionallyCompose
918	+	(CompletableFuture<T> f,
919	+	Function<Throwable, ? extends CompletionStage<T>> fn);
920		}
921
922		/**
#	Line 842 | Line 924 | public class CompletableFutureTest exten
924		* normally, and source result is propagated
925		*/
926		public void testExceptionally_normalCompletion() {
927	+	for (ExecutionMode m : ExecutionMode.values())
928		for (boolean createIncomplete : new boolean[] { true, false })
929		for (Integer v1 : new Integer[] { 1, null })
930		{
931		final AtomicInteger a = new AtomicInteger(0);
932		final CompletableFuture<Integer> f = new CompletableFuture<>();
933		if (!createIncomplete) assertTrue(f.complete(v1));
934	<	final CompletableFuture<Integer> g = f.exceptionally
935	<	((Throwable t) -> {
853	<	// Should not be called
934	>	final CompletableFuture<Integer> g = m.exceptionally
935	>	(f, (Throwable t) -> {
936		a.getAndIncrement();
937	<	throw new AssertionError();
937	>	threadFail("should not be called");
938	>	return null;            // unreached
939		});
940		if (createIncomplete) assertTrue(f.complete(v1));
941
#	Line 866 | Line 949 | public class CompletableFutureTest exten
949		* exception
950		*/
951		public void testExceptionally_exceptionalCompletion() {
952	+	for (ExecutionMode m : ExecutionMode.values())
953		for (boolean createIncomplete : new boolean[] { true, false })
954		for (Integer v1 : new Integer[] { 1, null })
955		{
#	Line 873 | Line 957 | public class CompletableFutureTest exten
957		final CFException ex = new CFException();
958		final CompletableFuture<Integer> f = new CompletableFuture<>();
959		if (!createIncomplete) f.completeExceptionally(ex);
960	<	final CompletableFuture<Integer> g = f.exceptionally
961	<	((Throwable t) -> {
962	<	ExecutionMode.DEFAULT.checkExecutionMode();
960	>	final CompletableFuture<Integer> g = m.exceptionally
961	>	(f, (Throwable t) -> {
962	>	m.checkExecutionMode();
963		threadAssertSame(t, ex);
964		a.getAndIncrement();
965		return v1;
#	Line 886 | Line 970 | public class CompletableFutureTest exten
970		assertEquals(1, a.get());
971		}}
972
973	+	/**
974	+	* If an "exceptionally action" throws an exception, it completes
975	+	* exceptionally with that exception
976	+	*/
977		public void testExceptionally_exceptionalCompletionActionFailed() {
978	+	for (ExecutionMode m : ExecutionMode.values())
979		for (boolean createIncomplete : new boolean[] { true, false })
891	–	for (Integer v1 : new Integer[] { 1, null })
980		{
981		final AtomicInteger a = new AtomicInteger(0);
982		final CFException ex1 = new CFException();
983		final CFException ex2 = new CFException();
984		final CompletableFuture<Integer> f = new CompletableFuture<>();
985		if (!createIncomplete) f.completeExceptionally(ex1);
986	<	final CompletableFuture<Integer> g = f.exceptionally
987	<	((Throwable t) -> {
988	<	ExecutionMode.DEFAULT.checkExecutionMode();
986	>	final CompletableFuture<Integer> g = m.exceptionally
987	>	(f, (Throwable t) -> {
988	>	m.checkExecutionMode();
989		threadAssertSame(t, ex1);
990		a.getAndIncrement();
991		throw ex2;
#	Line 905 | Line 993 | public class CompletableFutureTest exten
993		if (createIncomplete) f.completeExceptionally(ex1);
994
995		checkCompletedWithWrappedException(g, ex2);
996	+	checkCompletedExceptionally(f, ex1);
997		assertEquals(1, a.get());
998		}}
999
#	Line 912 | Line 1001 | public class CompletableFutureTest exten
1001		* whenComplete action executes on normal completion, propagating
1002		* source result.
1003		*/
1004	<	public void testWhenComplete_normalCompletion1() {
1004	>	public void testWhenComplete_normalCompletion() {
1005		for (ExecutionMode m : ExecutionMode.values())
1006		for (boolean createIncomplete : new boolean[] { true, false })
1007		for (Integer v1 : new Integer[] { 1, null })
#	Line 922 | Line 1011 | public class CompletableFutureTest exten
1011		if (!createIncomplete) assertTrue(f.complete(v1));
1012		final CompletableFuture<Integer> g = m.whenComplete
1013		(f,
1014	<	(Integer x, Throwable t) -> {
1014	>	(Integer result, Throwable t) -> {
1015		m.checkExecutionMode();
1016	<	threadAssertSame(x, v1);
1016	>	threadAssertSame(result, v1);
1017		threadAssertNull(t);
1018		a.getAndIncrement();
1019		});
#	Line 942 | Line 1031 | public class CompletableFutureTest exten
1031		public void testWhenComplete_exceptionalCompletion() {
1032		for (ExecutionMode m : ExecutionMode.values())
1033		for (boolean createIncomplete : new boolean[] { true, false })
945	–	for (Integer v1 : new Integer[] { 1, null })
1034		{
1035		final AtomicInteger a = new AtomicInteger(0);
1036		final CFException ex = new CFException();
#	Line 950 | Line 1038 | public class CompletableFutureTest exten
1038		if (!createIncomplete) f.completeExceptionally(ex);
1039		final CompletableFuture<Integer> g = m.whenComplete
1040		(f,
1041	<	(Integer x, Throwable t) -> {
1041	>	(Integer result, Throwable t) -> {
1042		m.checkExecutionMode();
1043	<	threadAssertNull(x);
1043	>	threadAssertNull(result);
1044		threadAssertSame(t, ex);
1045		a.getAndIncrement();
1046		});
#	Line 977 | Line 1065 | public class CompletableFutureTest exten
1065		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1066		final CompletableFuture<Integer> g = m.whenComplete
1067		(f,
1068	<	(Integer x, Throwable t) -> {
1068	>	(Integer result, Throwable t) -> {
1069		m.checkExecutionMode();
1070	<	threadAssertNull(x);
1070	>	threadAssertNull(result);
1071		threadAssertTrue(t instanceof CancellationException);
1072		a.getAndIncrement();
1073		});
#	Line 994 | Line 1082 | public class CompletableFutureTest exten
1082		* If a whenComplete action throws an exception when triggered by
1083		* a normal completion, it completes exceptionally
1084		*/
1085	<	public void testWhenComplete_actionFailed() {
1085	>	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
1086		for (boolean createIncomplete : new boolean[] { true, false })
1087		for (ExecutionMode m : ExecutionMode.values())
1088		for (Integer v1 : new Integer[] { 1, null })
#	Line 1005 | Line 1093 | public class CompletableFutureTest exten
1093		if (!createIncomplete) assertTrue(f.complete(v1));
1094		final CompletableFuture<Integer> g = m.whenComplete
1095		(f,
1096	<	(Integer x, Throwable t) -> {
1096	>	(Integer result, Throwable t) -> {
1097		m.checkExecutionMode();
1098	<	threadAssertSame(x, v1);
1098	>	threadAssertSame(result, v1);
1099		threadAssertNull(t);
1100		a.getAndIncrement();
1101		throw ex;
#	Line 1022 | Line 1110 | public class CompletableFutureTest exten
1110		/**
1111		* If a whenComplete action throws an exception when triggered by
1112		* a source completion that also throws an exception, the source
1113	<	* exception takes precedence.
1113	>	* exception takes precedence (unlike handle)
1114		*/
1115	<	public void testWhenComplete_actionFailedSourceFailed() {
1115	>	public void testWhenComplete_sourceFailedActionFailed() {
1116		for (boolean createIncomplete : new boolean[] { true, false })
1117		for (ExecutionMode m : ExecutionMode.values())
1030	–	for (Integer v1 : new Integer[] { 1, null })
1118		{
1119		final AtomicInteger a = new AtomicInteger(0);
1120		final CFException ex1 = new CFException();
#	Line 1037 | Line 1124 | public class CompletableFutureTest exten
1124		if (!createIncomplete) f.completeExceptionally(ex1);
1125		final CompletableFuture<Integer> g = m.whenComplete
1126		(f,
1127	<	(Integer x, Throwable t) -> {
1127	>	(Integer result, Throwable t) -> {
1128		m.checkExecutionMode();
1129		threadAssertSame(t, ex1);
1130	<	threadAssertNull(x);
1130	>	threadAssertNull(result);
1131		a.getAndIncrement();
1132		throw ex2;
1133		});
#	Line 1048 | Line 1135 | public class CompletableFutureTest exten
1135
1136		checkCompletedWithWrappedException(g, ex1);
1137		checkCompletedExceptionally(f, ex1);
1138	+	if (testImplementationDetails) {
1139	+	assertEquals(1, ex1.getSuppressed().length);
1140	+	assertSame(ex2, ex1.getSuppressed()[0]);
1141	+	}
1142		assertEquals(1, a.get());
1143		}}
1144
#	Line 1065 | Line 1156 | public class CompletableFutureTest exten
1156		if (!createIncomplete) assertTrue(f.complete(v1));
1157		final CompletableFuture<Integer> g = m.handle
1158		(f,
1159	<	(Integer x, Throwable t) -> {
1159	>	(Integer result, Throwable t) -> {
1160		m.checkExecutionMode();
1161	<	threadAssertSame(x, v1);
1161	>	threadAssertSame(result, v1);
1162		threadAssertNull(t);
1163		a.getAndIncrement();
1164		return inc(v1);
#	Line 1094 | Line 1185 | public class CompletableFutureTest exten
1185		if (!createIncomplete) f.completeExceptionally(ex);
1186		final CompletableFuture<Integer> g = m.handle
1187		(f,
1188	<	(Integer x, Throwable t) -> {
1188	>	(Integer result, Throwable t) -> {
1189		m.checkExecutionMode();
1190	<	threadAssertNull(x);
1190	>	threadAssertNull(result);
1191		threadAssertSame(t, ex);
1192		a.getAndIncrement();
1193		return v1;
#	Line 1123 | Line 1214 | public class CompletableFutureTest exten
1214		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1215		final CompletableFuture<Integer> g = m.handle
1216		(f,
1217	<	(Integer x, Throwable t) -> {
1217	>	(Integer result, Throwable t) -> {
1218		m.checkExecutionMode();
1219	<	threadAssertNull(x);
1219	>	threadAssertNull(result);
1220		threadAssertTrue(t instanceof CancellationException);
1221		a.getAndIncrement();
1222		return v1;
#	Line 1138 | Line 1229 | public class CompletableFutureTest exten
1229		}}
1230
1231		/**
1232	<	* handle result completes exceptionally if action does
1232	>	* If a "handle action" throws an exception when triggered by
1233	>	* a normal completion, it completes exceptionally
1234		*/
1235	<	public void testHandle_sourceFailedActionFailed() {
1235	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1236		for (ExecutionMode m : ExecutionMode.values())
1237		for (boolean createIncomplete : new boolean[] { true, false })
1238	+	for (Integer v1 : new Integer[] { 1, null })
1239		{
1240		final CompletableFuture<Integer> f = new CompletableFuture<>();
1241		final AtomicInteger a = new AtomicInteger(0);
1242	<	final CFException ex1 = new CFException();
1243	<	final CFException ex2 = new CFException();
1151	<	if (!createIncomplete) f.completeExceptionally(ex1);
1242	>	final CFException ex = new CFException();
1243	>	if (!createIncomplete) assertTrue(f.complete(v1));
1244		final CompletableFuture<Integer> g = m.handle
1245		(f,
1246	<	(Integer x, Throwable t) -> {
1246	>	(Integer result, Throwable t) -> {
1247		m.checkExecutionMode();
1248	<	threadAssertNull(x);
1249	<	threadAssertSame(ex1, t);
1248	>	threadAssertSame(result, v1);
1249	>	threadAssertNull(t);
1250		a.getAndIncrement();
1251	<	throw ex2;
1251	>	throw ex;
1252		});
1253	<	if (createIncomplete) f.completeExceptionally(ex1);
1253	>	if (createIncomplete) assertTrue(f.complete(v1));
1254
1255	<	checkCompletedWithWrappedException(g, ex2);
1256	<	checkCompletedExceptionally(f, ex1);
1255	>	checkCompletedWithWrappedException(g, ex);
1256	>	checkCompletedNormally(f, v1);
1257		assertEquals(1, a.get());
1258		}}
1259
1260	<	public void testHandle_sourceCompletedNormallyActionFailed() {
1261	<	for (ExecutionMode m : ExecutionMode.values())
1260	>	/**
1261	>	* If a "handle action" throws an exception when triggered by
1262	>	* a source completion that also throws an exception, the action
1263	>	* exception takes precedence (unlike whenComplete)
1264	>	*/
1265	>	public void testHandle_sourceFailedActionFailed() {
1266		for (boolean createIncomplete : new boolean[] { true, false })
1267	<	for (Integer v1 : new Integer[] { 1, null })
1267	>	for (ExecutionMode m : ExecutionMode.values())
1268		{
1173	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
1269		final AtomicInteger a = new AtomicInteger(0);
1270	<	final CFException ex = new CFException();
1271	<	if (!createIncomplete) assertTrue(f.complete(v1));
1270	>	final CFException ex1 = new CFException();
1271	>	final CFException ex2 = new CFException();
1272	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1273	>
1274	>	if (!createIncomplete) f.completeExceptionally(ex1);
1275		final CompletableFuture<Integer> g = m.handle
1276		(f,
1277	<	(Integer x, Throwable t) -> {
1277	>	(Integer result, Throwable t) -> {
1278		m.checkExecutionMode();
1279	<	threadAssertSame(x, v1);
1280	<	threadAssertNull(t);
1279	>	threadAssertNull(result);
1280	>	threadAssertSame(ex1, t);
1281		a.getAndIncrement();
1282	<	throw ex;
1282	>	throw ex2;
1283		});
1284	<	if (createIncomplete) assertTrue(f.complete(v1));
1284	>	if (createIncomplete) f.completeExceptionally(ex1);
1285
1286	<	checkCompletedWithWrappedException(g, ex);
1287	<	checkCompletedNormally(f, v1);
1286	>	checkCompletedWithWrappedException(g, ex2);
1287	>	checkCompletedExceptionally(f, ex1);
1288		assertEquals(1, a.get());
1289		}}
1290
#	Line 1219 | Line 1317 | public class CompletableFutureTest exten
1317		{
1318		final FailingRunnable r = new FailingRunnable(m);
1319		final CompletableFuture<Void> f = m.runAsync(r);
1320	<	checkCompletedWithWrappedCFException(f);
1320	>	checkCompletedWithWrappedException(f, r.ex);
1321		r.assertInvoked();
1322		}}
1323
1324	+	@SuppressWarnings("FutureReturnValueIgnored")
1325	+	public void testRunAsync_rejectingExecutor() {
1326	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1327	+	try {
1328	+	CompletableFuture.runAsync(() -> {}, e);
1329	+	shouldThrow();
1330	+	} catch (Throwable t) {
1331	+	assertSame(e.ex, t);
1332	+	}
1333	+
1334	+	assertEquals(1, e.count.get());
1335	+	}
1336	+
1337		/**
1338		* supplyAsync completes with result of supplier
1339		*/
#	Line 1253 | Line 1364 | public class CompletableFutureTest exten
1364		{
1365		FailingSupplier r = new FailingSupplier(m);
1366		CompletableFuture<Integer> f = m.supplyAsync(r);
1367	<	checkCompletedWithWrappedCFException(f);
1367	>	checkCompletedWithWrappedException(f, r.ex);
1368		r.assertInvoked();
1369		}}
1370
1371	+	@SuppressWarnings("FutureReturnValueIgnored")
1372	+	public void testSupplyAsync_rejectingExecutor() {
1373	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1374	+	try {
1375	+	CompletableFuture.supplyAsync(() -> null, e);
1376	+	shouldThrow();
1377	+	} catch (Throwable t) {
1378	+	assertSame(e.ex, t);
1379	+	}
1380	+
1381	+	assertEquals(1, e.count.get());
1382	+	}
1383	+
1384		// seq completion methods
1385
1386		/**
#	Line 1264 | Line 1388 | public class CompletableFutureTest exten
1388		*/
1389		public void testThenRun_normalCompletion() {
1390		for (ExecutionMode m : ExecutionMode.values())
1267	–	for (boolean createIncomplete : new boolean[] { true, false })
1391		for (Integer v1 : new Integer[] { 1, null })
1392		{
1393		final CompletableFuture<Integer> f = new CompletableFuture<>();
1394	<	final Noop r = new Noop(m);
1395	<	if (!createIncomplete) assertTrue(f.complete(v1));
1273	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1274	<	if (createIncomplete) {
1275	<	checkIncomplete(g);
1276	<	assertTrue(f.complete(v1));
1277	<	}
1394	>	final Noop[] rs = new Noop[6];
1395	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1396
1397	<	checkCompletedNormally(g, null);
1397	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1398	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1399	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1400	>	checkIncomplete(h0);
1401	>	checkIncomplete(h1);
1402	>	checkIncomplete(h2);
1403	>	assertTrue(f.complete(v1));
1404	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1405	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1406	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1407	>
1408	>	checkCompletedNormally(h0, null);
1409	>	checkCompletedNormally(h1, null);
1410	>	checkCompletedNormally(h2, null);
1411	>	checkCompletedNormally(h3, null);
1412	>	checkCompletedNormally(h4, null);
1413	>	checkCompletedNormally(h5, null);
1414		checkCompletedNormally(f, v1);
1415	<	r.assertInvoked();
1415	>	for (Noop r : rs) r.assertInvoked();
1416		}}
1417
1418		/**
#	Line 1287 | Line 1421 | public class CompletableFutureTest exten
1421		*/
1422		public void testThenRun_exceptionalCompletion() {
1423		for (ExecutionMode m : ExecutionMode.values())
1290	–	for (boolean createIncomplete : new boolean[] { true, false })
1424		{
1425		final CFException ex = new CFException();
1426		final CompletableFuture<Integer> f = new CompletableFuture<>();
1427	<	final Noop r = new Noop(m);
1428	<	if (!createIncomplete) f.completeExceptionally(ex);
1296	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1297	<	if (createIncomplete) {
1298	<	checkIncomplete(g);
1299	<	f.completeExceptionally(ex);
1300	<	}
1427	>	final Noop[] rs = new Noop[6];
1428	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1429
1430	<	checkCompletedWithWrappedException(g, ex);
1430	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1431	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1432	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1433	>	checkIncomplete(h0);
1434	>	checkIncomplete(h1);
1435	>	checkIncomplete(h2);
1436	>	assertTrue(f.completeExceptionally(ex));
1437	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1438	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1439	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1440	>
1441	>	checkCompletedWithWrappedException(h0, ex);
1442	>	checkCompletedWithWrappedException(h1, ex);
1443	>	checkCompletedWithWrappedException(h2, ex);
1444	>	checkCompletedWithWrappedException(h3, ex);
1445	>	checkCompletedWithWrappedException(h4, ex);
1446	>	checkCompletedWithWrappedException(h5, ex);
1447		checkCompletedExceptionally(f, ex);
1448	<	r.assertNotInvoked();
1448	>	for (Noop r : rs) r.assertNotInvoked();
1449		}}
1450
1451		/**
#	Line 1309 | Line 1453 | public class CompletableFutureTest exten
1453		*/
1454		public void testThenRun_sourceCancelled() {
1455		for (ExecutionMode m : ExecutionMode.values())
1312	–	for (boolean createIncomplete : new boolean[] { true, false })
1456		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1457		{
1458		final CompletableFuture<Integer> f = new CompletableFuture<>();
1459	<	final Noop r = new Noop(m);
1460	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1318	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1319	<	if (createIncomplete) {
1320	<	checkIncomplete(g);
1321	<	assertTrue(f.cancel(mayInterruptIfRunning));
1322	<	}
1459	>	final Noop[] rs = new Noop[6];
1460	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1461
1462	<	checkCompletedWithWrappedCancellationException(g);
1462	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1463	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1464	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1465	>	checkIncomplete(h0);
1466	>	checkIncomplete(h1);
1467	>	checkIncomplete(h2);
1468	>	assertTrue(f.cancel(mayInterruptIfRunning));
1469	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1470	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1471	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1472	>
1473	>	checkCompletedWithWrappedCancellationException(h0);
1474	>	checkCompletedWithWrappedCancellationException(h1);
1475	>	checkCompletedWithWrappedCancellationException(h2);
1476	>	checkCompletedWithWrappedCancellationException(h3);
1477	>	checkCompletedWithWrappedCancellationException(h4);
1478	>	checkCompletedWithWrappedCancellationException(h5);
1479		checkCancelled(f);
1480	<	r.assertNotInvoked();
1480	>	for (Noop r : rs) r.assertNotInvoked();
1481		}}
1482
1483		/**
#	Line 1331 | Line 1485 | public class CompletableFutureTest exten
1485		*/
1486		public void testThenRun_actionFailed() {
1487		for (ExecutionMode m : ExecutionMode.values())
1334	–	for (boolean createIncomplete : new boolean[] { true, false })
1488		for (Integer v1 : new Integer[] { 1, null })
1489		{
1490		final CompletableFuture<Integer> f = new CompletableFuture<>();
1491	<	final FailingRunnable r = new FailingRunnable(m);
1492	<	if (!createIncomplete) assertTrue(f.complete(v1));
1340	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1341	<	if (createIncomplete) {
1342	<	checkIncomplete(g);
1343	<	assertTrue(f.complete(v1));
1344	<	}
1491	>	final FailingRunnable[] rs = new FailingRunnable[6];
1492	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1493
1494	<	checkCompletedWithWrappedCFException(g);
1494	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1495	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1496	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1497	>	assertTrue(f.complete(v1));
1498	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1499	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1500	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1501	>
1502	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1503	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1504	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1505	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1506	>	checkCompletedWithWrappedException(h4, rs[4].ex);
1507	>	checkCompletedWithWrappedException(h5, rs[5].ex);
1508		checkCompletedNormally(f, v1);
1509		}}
1510
#	Line 1352 | Line 1513 | public class CompletableFutureTest exten
1513		*/
1514		public void testThenApply_normalCompletion() {
1515		for (ExecutionMode m : ExecutionMode.values())
1355	–	for (boolean createIncomplete : new boolean[] { true, false })
1516		for (Integer v1 : new Integer[] { 1, null })
1517		{
1518		final CompletableFuture<Integer> f = new CompletableFuture<>();
1519	<	final IncFunction r = new IncFunction(m);
1520	<	if (!createIncomplete) assertTrue(f.complete(v1));
1361	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1362	<	if (createIncomplete) {
1363	<	checkIncomplete(g);
1364	<	assertTrue(f.complete(v1));
1365	<	}
1519	>	final IncFunction[] rs = new IncFunction[4];
1520	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1521
1522	<	checkCompletedNormally(g, inc(v1));
1522	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1523	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1524	>	checkIncomplete(h0);
1525	>	checkIncomplete(h1);
1526	>	assertTrue(f.complete(v1));
1527	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1528	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1529	>
1530	>	checkCompletedNormally(h0, inc(v1));
1531	>	checkCompletedNormally(h1, inc(v1));
1532	>	checkCompletedNormally(h2, inc(v1));
1533	>	checkCompletedNormally(h3, inc(v1));
1534		checkCompletedNormally(f, v1);
1535	<	r.assertValue(inc(v1));
1535	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1536		}}
1537
1538		/**
#	Line 1375 | Line 1541 | public class CompletableFutureTest exten
1541		*/
1542		public void testThenApply_exceptionalCompletion() {
1543		for (ExecutionMode m : ExecutionMode.values())
1378	–	for (boolean createIncomplete : new boolean[] { true, false })
1544		{
1545		final CFException ex = new CFException();
1546		final CompletableFuture<Integer> f = new CompletableFuture<>();
1547	<	final IncFunction r = new IncFunction(m);
1548	<	if (!createIncomplete) f.completeExceptionally(ex);
1384	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1385	<	if (createIncomplete) {
1386	<	checkIncomplete(g);
1387	<	f.completeExceptionally(ex);
1388	<	}
1547	>	final IncFunction[] rs = new IncFunction[4];
1548	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1549
1550	<	checkCompletedWithWrappedException(g, ex);
1550	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1551	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1552	>	assertTrue(f.completeExceptionally(ex));
1553	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1554	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1555	>
1556	>	checkCompletedWithWrappedException(h0, ex);
1557	>	checkCompletedWithWrappedException(h1, ex);
1558	>	checkCompletedWithWrappedException(h2, ex);
1559	>	checkCompletedWithWrappedException(h3, ex);
1560		checkCompletedExceptionally(f, ex);
1561	<	r.assertNotInvoked();
1561	>	for (IncFunction r : rs) r.assertNotInvoked();
1562		}}
1563
1564		/**
#	Line 1397 | Line 1566 | public class CompletableFutureTest exten
1566		*/
1567		public void testThenApply_sourceCancelled() {
1568		for (ExecutionMode m : ExecutionMode.values())
1400	–	for (boolean createIncomplete : new boolean[] { true, false })
1569		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1570		{
1571		final CompletableFuture<Integer> f = new CompletableFuture<>();
1572	<	final IncFunction r = new IncFunction(m);
1573	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1406	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1407	<	if (createIncomplete) {
1408	<	checkIncomplete(g);
1409	<	assertTrue(f.cancel(mayInterruptIfRunning));
1410	<	}
1572	>	final IncFunction[] rs = new IncFunction[4];
1573	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1574
1575	<	checkCompletedWithWrappedCancellationException(g);
1575	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1576	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1577	>	assertTrue(f.cancel(mayInterruptIfRunning));
1578	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1579	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1580	>
1581	>	checkCompletedWithWrappedCancellationException(h0);
1582	>	checkCompletedWithWrappedCancellationException(h1);
1583	>	checkCompletedWithWrappedCancellationException(h2);
1584	>	checkCompletedWithWrappedCancellationException(h3);
1585		checkCancelled(f);
1586	<	r.assertNotInvoked();
1586	>	for (IncFunction r : rs) r.assertNotInvoked();
1587		}}
1588
1589		/**
#	Line 1419 | Line 1591 | public class CompletableFutureTest exten
1591		*/
1592		public void testThenApply_actionFailed() {
1593		for (ExecutionMode m : ExecutionMode.values())
1422	–	for (boolean createIncomplete : new boolean[] { true, false })
1594		for (Integer v1 : new Integer[] { 1, null })
1595		{
1596		final CompletableFuture<Integer> f = new CompletableFuture<>();
1597	<	final FailingFunction r = new FailingFunction(m);
1598	<	if (!createIncomplete) assertTrue(f.complete(v1));
1599	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1600	<	if (createIncomplete) {
1601	<	checkIncomplete(g);
1602	<	assertTrue(f.complete(v1));
1603	<	}
1597	>	final FailingFunction[] rs = new FailingFunction[4];
1598	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1599	>
1600	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1601	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1602	>	assertTrue(f.complete(v1));
1603	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1604	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1605
1606	<	checkCompletedWithWrappedCFException(g);
1606	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1607	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1608	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1609	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1610		checkCompletedNormally(f, v1);
1611		}}
1612
#	Line 1440 | Line 1615 | public class CompletableFutureTest exten
1615		*/
1616		public void testThenAccept_normalCompletion() {
1617		for (ExecutionMode m : ExecutionMode.values())
1443	–	for (boolean createIncomplete : new boolean[] { true, false })
1618		for (Integer v1 : new Integer[] { 1, null })
1619		{
1620		final CompletableFuture<Integer> f = new CompletableFuture<>();
1621	<	final NoopConsumer r = new NoopConsumer(m);
1622	<	if (!createIncomplete) assertTrue(f.complete(v1));
1449	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1450	<	if (createIncomplete) {
1451	<	checkIncomplete(g);
1452	<	assertTrue(f.complete(v1));
1453	<	}
1621	>	final NoopConsumer[] rs = new NoopConsumer[4];
1622	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1623
1624	<	checkCompletedNormally(g, null);
1625	<	r.assertValue(v1);
1624	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1625	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1626	>	checkIncomplete(h0);
1627	>	checkIncomplete(h1);
1628	>	assertTrue(f.complete(v1));
1629	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1630	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1631	>
1632	>	checkCompletedNormally(h0, null);
1633	>	checkCompletedNormally(h1, null);
1634	>	checkCompletedNormally(h2, null);
1635	>	checkCompletedNormally(h3, null);
1636		checkCompletedNormally(f, v1);
1637	+	for (NoopConsumer r : rs) r.assertValue(v1);
1638		}}
1639
1640		/**
#	Line 1463 | Line 1643 | public class CompletableFutureTest exten
1643		*/
1644		public void testThenAccept_exceptionalCompletion() {
1645		for (ExecutionMode m : ExecutionMode.values())
1466	–	for (boolean createIncomplete : new boolean[] { true, false })
1646		{
1647		final CFException ex = new CFException();
1648		final CompletableFuture<Integer> f = new CompletableFuture<>();
1649	<	final NoopConsumer r = new NoopConsumer(m);
1650	<	if (!createIncomplete) f.completeExceptionally(ex);
1472	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1473	<	if (createIncomplete) {
1474	<	checkIncomplete(g);
1475	<	f.completeExceptionally(ex);
1476	<	}
1649	>	final NoopConsumer[] rs = new NoopConsumer[4];
1650	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1651
1652	<	checkCompletedWithWrappedException(g, ex);
1652	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1653	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1654	>	assertTrue(f.completeExceptionally(ex));
1655	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1656	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1657	>
1658	>	checkCompletedWithWrappedException(h0, ex);
1659	>	checkCompletedWithWrappedException(h1, ex);
1660	>	checkCompletedWithWrappedException(h2, ex);
1661	>	checkCompletedWithWrappedException(h3, ex);
1662		checkCompletedExceptionally(f, ex);
1663	<	r.assertNotInvoked();
1663	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1664		}}
1665
1666		/**
#	Line 1485 | Line 1668 | public class CompletableFutureTest exten
1668		*/
1669		public void testThenAccept_sourceCancelled() {
1670		for (ExecutionMode m : ExecutionMode.values())
1488	–	for (boolean createIncomplete : new boolean[] { true, false })
1671		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1672		{
1673		final CompletableFuture<Integer> f = new CompletableFuture<>();
1674	<	final NoopConsumer r = new NoopConsumer(m);
1675	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1494	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1495	<	if (createIncomplete) {
1496	<	checkIncomplete(g);
1497	<	assertTrue(f.cancel(mayInterruptIfRunning));
1498	<	}
1674	>	final NoopConsumer[] rs = new NoopConsumer[4];
1675	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1676
1677	<	checkCompletedWithWrappedCancellationException(g);
1677	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1678	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1679	>	assertTrue(f.cancel(mayInterruptIfRunning));
1680	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1681	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1682	>
1683	>	checkCompletedWithWrappedCancellationException(h0);
1684	>	checkCompletedWithWrappedCancellationException(h1);
1685	>	checkCompletedWithWrappedCancellationException(h2);
1686	>	checkCompletedWithWrappedCancellationException(h3);
1687		checkCancelled(f);
1688	<	r.assertNotInvoked();
1688	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1689		}}
1690
1691		/**
#	Line 1507 | Line 1693 | public class CompletableFutureTest exten
1693		*/
1694		public void testThenAccept_actionFailed() {
1695		for (ExecutionMode m : ExecutionMode.values())
1510	–	for (boolean createIncomplete : new boolean[] { true, false })
1696		for (Integer v1 : new Integer[] { 1, null })
1697		{
1698		final CompletableFuture<Integer> f = new CompletableFuture<>();
1699	<	final FailingConsumer r = new FailingConsumer(m);
1700	<	if (!createIncomplete) f.complete(v1);
1516	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1517	<	if (createIncomplete) {
1518	<	checkIncomplete(g);
1519	<	f.complete(v1);
1520	<	}
1699	>	final FailingConsumer[] rs = new FailingConsumer[4];
1700	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1701
1702	<	checkCompletedWithWrappedCFException(g);
1702	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1703	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1704	>	assertTrue(f.complete(v1));
1705	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1706	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1707	>
1708	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1709	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1710	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1711	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1712		checkCompletedNormally(f, v1);
1713		}}
1714
#	Line 1535 | Line 1724 | public class CompletableFutureTest exten
1724		{
1725		final CompletableFuture<Integer> f = new CompletableFuture<>();
1726		final CompletableFuture<Integer> g = new CompletableFuture<>();
1727	<	final SubtractFunction r1 = new SubtractFunction(m);
1728	<	final SubtractFunction r2 = new SubtractFunction(m);
1540	<	final SubtractFunction r3 = new SubtractFunction(m);
1727	>	final SubtractFunction[] rs = new SubtractFunction[6];
1728	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1729
1730		final CompletableFuture<Integer> fst =  fFirst ? f : g;
1731		final CompletableFuture<Integer> snd = !fFirst ? f : g;
1732		final Integer w1 =  fFirst ? v1 : v2;
1733		final Integer w2 = !fFirst ? v1 : v2;
1734
1735	<	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1735	>	final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1736	>	final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1737		assertTrue(fst.complete(w1));
1738	<	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1739	<	checkIncomplete(h1);
1740	<	checkIncomplete(h2);
1741	<	r1.assertNotInvoked();
1742	<	r2.assertNotInvoked();
1738	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1739	>	final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1740	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1741	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1742	>	checkCompletedNormally(h1, subtract(w1, w1));
1743	>	checkCompletedNormally(h3, subtract(w1, w1));
1744	>	rs[1].assertValue(subtract(w1, w1));
1745	>	rs[3].assertValue(subtract(w1, w1));
1746		assertTrue(snd.complete(w2));
1747	<	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1747	>	final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1748
1749	<	checkCompletedNormally(h1, subtract(v1, v2));
1749	>	checkCompletedNormally(h0, subtract(v1, v2));
1750		checkCompletedNormally(h2, subtract(v1, v2));
1751	<	checkCompletedNormally(h3, subtract(v1, v2));
1752	<	r1.assertValue(subtract(v1, v2));
1753	<	r2.assertValue(subtract(v1, v2));
1754	<	r3.assertValue(subtract(v1, v2));
1751	>	checkCompletedNormally(h4, subtract(v1, v2));
1752	>	rs[0].assertValue(subtract(v1, v2));
1753	>	rs[2].assertValue(subtract(v1, v2));
1754	>	rs[4].assertValue(subtract(v1, v2));
1755	>
1756		checkCompletedNormally(f, v1);
1757		checkCompletedNormally(g, v2);
1758		}}
#	Line 1677 | Line 1870 | public class CompletableFutureTest exten
1870		assertTrue(snd.complete(w2));
1871		final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1872
1873	<	checkCompletedWithWrappedCFException(h1);
1874	<	checkCompletedWithWrappedCFException(h2);
1875	<	checkCompletedWithWrappedCFException(h3);
1873	>	checkCompletedWithWrappedException(h1, r1.ex);
1874	>	checkCompletedWithWrappedException(h2, r2.ex);
1875	>	checkCompletedWithWrappedException(h3, r3.ex);
1876		r1.assertInvoked();
1877		r2.assertInvoked();
1878		r3.assertInvoked();
#	Line 1841 | Line 2034 | public class CompletableFutureTest exten
2034		assertTrue(snd.complete(w2));
2035		final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
2036
2037	<	checkCompletedWithWrappedCFException(h1);
2038	<	checkCompletedWithWrappedCFException(h2);
2039	<	checkCompletedWithWrappedCFException(h3);
2037	>	checkCompletedWithWrappedException(h1, r1.ex);
2038	>	checkCompletedWithWrappedException(h2, r2.ex);
2039	>	checkCompletedWithWrappedException(h3, r3.ex);
2040		r1.assertInvoked();
2041		r2.assertInvoked();
2042		r3.assertInvoked();
#	Line 2005 | Line 2198 | public class CompletableFutureTest exten
2198		assertTrue(snd.complete(w2));
2199		final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2200
2201	<	checkCompletedWithWrappedCFException(h1);
2202	<	checkCompletedWithWrappedCFException(h2);
2203	<	checkCompletedWithWrappedCFException(h3);
2201	>	checkCompletedWithWrappedException(h1, r1.ex);
2202	>	checkCompletedWithWrappedException(h2, r2.ex);
2203	>	checkCompletedWithWrappedException(h3, r3.ex);
2204		r1.assertInvoked();
2205		r2.assertInvoked();
2206		r3.assertInvoked();
#	Line 2297 | Line 2490 | public class CompletableFutureTest exten
2490		f.complete(v1);
2491		final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2492		final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2493	<	checkCompletedWithWrappedCFException(h0);
2494	<	checkCompletedWithWrappedCFException(h1);
2495	<	checkCompletedWithWrappedCFException(h2);
2496	<	checkCompletedWithWrappedCFException(h3);
2493	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2494	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2495	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2496	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2497		for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2498
2499		g.complete(v2);
#	Line 2309 | Line 2502 | public class CompletableFutureTest exten
2502		final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2503		final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2504
2505	<	checkCompletedWithWrappedCFException(h4);
2505	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2506		assertTrue(Objects.equals(v1, rs[4].value) ||
2507		Objects.equals(v2, rs[4].value));
2508	<	checkCompletedWithWrappedCFException(h5);
2508	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2509		assertTrue(Objects.equals(v1, rs[5].value) ||
2510		Objects.equals(v2, rs[5].value));
2511
#	Line 2450 | Line 2643 | public class CompletableFutureTest exten
2643
2644		// unspecified behavior - both source completions available
2645		try {
2646	<	assertEquals(null, h0.join());
2646	>	assertNull(h0.join());
2647		rs[0].assertValue(v1);
2648		} catch (CompletionException ok) {
2649		checkCompletedWithWrappedException(h0, ex);
2650		rs[0].assertNotInvoked();
2651		}
2652		try {
2653	<	assertEquals(null, h1.join());
2653	>	assertNull(h1.join());
2654		rs[1].assertValue(v1);
2655		} catch (CompletionException ok) {
2656		checkCompletedWithWrappedException(h1, ex);
2657		rs[1].assertNotInvoked();
2658		}
2659		try {
2660	<	assertEquals(null, h2.join());
2660	>	assertNull(h2.join());
2661		rs[2].assertValue(v1);
2662		} catch (CompletionException ok) {
2663		checkCompletedWithWrappedException(h2, ex);
2664		rs[2].assertNotInvoked();
2665		}
2666		try {
2667	<	assertEquals(null, h3.join());
2667	>	assertNull(h3.join());
2668		rs[3].assertValue(v1);
2669		} catch (CompletionException ok) {
2670		checkCompletedWithWrappedException(h3, ex);
#	Line 2556 | Line 2749 | public class CompletableFutureTest exten
2749		f.complete(v1);
2750		final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2751		final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2752	<	checkCompletedWithWrappedCFException(h0);
2753	<	checkCompletedWithWrappedCFException(h1);
2754	<	checkCompletedWithWrappedCFException(h2);
2755	<	checkCompletedWithWrappedCFException(h3);
2752	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2753	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2754	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2755	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2756		for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2757
2758		g.complete(v2);
#	Line 2568 | Line 2761 | public class CompletableFutureTest exten
2761		final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2762		final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2763
2764	<	checkCompletedWithWrappedCFException(h4);
2764	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2765		assertTrue(Objects.equals(v1, rs[4].value) ||
2766		Objects.equals(v2, rs[4].value));
2767	<	checkCompletedWithWrappedCFException(h5);
2767	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2768		assertTrue(Objects.equals(v1, rs[5].value) ||
2769		Objects.equals(v2, rs[5].value));
2770
#	Line 2587 | Line 2780 | public class CompletableFutureTest exten
2780		for (ExecutionMode m : ExecutionMode.values())
2781		for (Integer v1 : new Integer[] { 1, null })
2782		for (Integer v2 : new Integer[] { 2, null })
2783	+	for (boolean pushNop : new boolean[] { true, false })
2784		{
2785		final CompletableFuture<Integer> f = new CompletableFuture<>();
2786		final CompletableFuture<Integer> g = new CompletableFuture<>();
#	Line 2599 | Line 2793 | public class CompletableFutureTest exten
2793		checkIncomplete(h1);
2794		rs[0].assertNotInvoked();
2795		rs[1].assertNotInvoked();
2796	+	if (pushNop) {          // ad hoc test of intra-completion interference
2797	+	m.thenRun(f, () -> {});
2798	+	m.thenRun(g, () -> {});
2799	+	}
2800		f.complete(v1);
2801		checkCompletedNormally(h0, null);
2802		checkCompletedNormally(h1, null);
#	Line 2705 | Line 2903 | public class CompletableFutureTest exten
2903
2904		// unspecified behavior - both source completions available
2905		try {
2906	<	assertEquals(null, h0.join());
2906	>	assertNull(h0.join());
2907		rs[0].assertInvoked();
2908		} catch (CompletionException ok) {
2909		checkCompletedWithWrappedException(h0, ex);
2910		rs[0].assertNotInvoked();
2911		}
2912		try {
2913	<	assertEquals(null, h1.join());
2913	>	assertNull(h1.join());
2914		rs[1].assertInvoked();
2915		} catch (CompletionException ok) {
2916		checkCompletedWithWrappedException(h1, ex);
2917		rs[1].assertNotInvoked();
2918		}
2919		try {
2920	<	assertEquals(null, h2.join());
2920	>	assertNull(h2.join());
2921		rs[2].assertInvoked();
2922		} catch (CompletionException ok) {
2923		checkCompletedWithWrappedException(h2, ex);
2924		rs[2].assertNotInvoked();
2925		}
2926		try {
2927	<	assertEquals(null, h3.join());
2927	>	assertNull(h3.join());
2928		rs[3].assertInvoked();
2929		} catch (CompletionException ok) {
2930		checkCompletedWithWrappedException(h3, ex);
#	Line 2811 | Line 3009 | public class CompletableFutureTest exten
3009		assertTrue(f.complete(v1));
3010		final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
3011		final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
3012	<	checkCompletedWithWrappedCFException(h0);
3013	<	checkCompletedWithWrappedCFException(h1);
3014	<	checkCompletedWithWrappedCFException(h2);
3015	<	checkCompletedWithWrappedCFException(h3);
3012	>	checkCompletedWithWrappedException(h0, rs[0].ex);
3013	>	checkCompletedWithWrappedException(h1, rs[1].ex);
3014	>	checkCompletedWithWrappedException(h2, rs[2].ex);
3015	>	checkCompletedWithWrappedException(h3, rs[3].ex);
3016		for (int i = 0; i < 4; i++) rs[i].assertInvoked();
3017		assertTrue(g.complete(v2));
3018		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
3019		final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
3020	<	checkCompletedWithWrappedCFException(h4);
3021	<	checkCompletedWithWrappedCFException(h5);
3020	>	checkCompletedWithWrappedException(h4, rs[4].ex);
3021	>	checkCompletedWithWrappedException(h5, rs[5].ex);
3022
3023		checkCompletedNormally(f, v1);
3024		checkCompletedNormally(g, v2);
#	Line 2881 | Line 3079 | public class CompletableFutureTest exten
3079		final CompletableFuture<Integer> g = m.thenCompose(f, r);
3080		if (createIncomplete) assertTrue(f.complete(v1));
3081
3082	<	checkCompletedWithWrappedCFException(g);
3082	>	checkCompletedWithWrappedException(g, r.ex);
3083		checkCompletedNormally(f, v1);
3084		}}
3085
#	Line 2906 | Line 3104 | public class CompletableFutureTest exten
3104		checkCancelled(f);
3105		}}
3106
3107	+	/**
3108	+	* thenCompose result completes exceptionally if the result of the action does
3109	+	*/
3110	+	public void testThenCompose_actionReturnsFailingFuture() {
3111	+	for (ExecutionMode m : ExecutionMode.values())
3112	+	for (int order = 0; order < 6; order++)
3113	+	for (Integer v1 : new Integer[] { 1, null })
3114	+	{
3115	+	final CFException ex = new CFException();
3116	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3117	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
3118	+	final CompletableFuture<Integer> h;
3119	+	// Test all permutations of orders
3120	+	switch (order) {
3121	+	case 0:
3122	+	assertTrue(f.complete(v1));
3123	+	assertTrue(g.completeExceptionally(ex));
3124	+	h = m.thenCompose(f, (x -> g));
3125	+	break;
3126	+	case 1:
3127	+	assertTrue(f.complete(v1));
3128	+	h = m.thenCompose(f, (x -> g));
3129	+	assertTrue(g.completeExceptionally(ex));
3130	+	break;
3131	+	case 2:
3132	+	assertTrue(g.completeExceptionally(ex));
3133	+	assertTrue(f.complete(v1));
3134	+	h = m.thenCompose(f, (x -> g));
3135	+	break;
3136	+	case 3:
3137	+	assertTrue(g.completeExceptionally(ex));
3138	+	h = m.thenCompose(f, (x -> g));
3139	+	assertTrue(f.complete(v1));
3140	+	break;
3141	+	case 4:
3142	+	h = m.thenCompose(f, (x -> g));
3143	+	assertTrue(f.complete(v1));
3144	+	assertTrue(g.completeExceptionally(ex));
3145	+	break;
3146	+	case 5:
3147	+	h = m.thenCompose(f, (x -> g));
3148	+	assertTrue(f.complete(v1));
3149	+	assertTrue(g.completeExceptionally(ex));
3150	+	break;
3151	+	default: throw new AssertionError();
3152	+	}
3153	+
3154	+	checkCompletedExceptionally(g, ex);
3155	+	checkCompletedWithWrappedException(h, ex);
3156	+	checkCompletedNormally(f, v1);
3157	+	}}
3158	+
3159	+	/**
3160	+	* exceptionallyCompose result completes normally after normal
3161	+	* completion of source
3162	+	*/
3163	+	public void testExceptionallyCompose_normalCompletion() {
3164	+	for (ExecutionMode m : ExecutionMode.values())
3165	+	for (boolean createIncomplete : new boolean[] { true, false })
3166	+	for (Integer v1 : new Integer[] { 1, null })
3167	+	{
3168	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3169	+	final ExceptionalCompletableFutureFunction r =
3170	+	new ExceptionalCompletableFutureFunction(m);
3171	+	if (!createIncomplete) assertTrue(f.complete(v1));
3172	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3173	+	if (createIncomplete) assertTrue(f.complete(v1));
3174	+
3175	+	checkCompletedNormally(f, v1);
3176	+	checkCompletedNormally(g, v1);
3177	+	r.assertNotInvoked();
3178	+	}}
3179	+
3180	+	/**
3181	+	* exceptionallyCompose result completes normally after exceptional
3182	+	* completion of source
3183	+	*/
3184	+	public void testExceptionallyCompose_exceptionalCompletion() {
3185	+	for (ExecutionMode m : ExecutionMode.values())
3186	+	for (boolean createIncomplete : new boolean[] { true, false })
3187	+	{
3188	+	final CFException ex = new CFException();
3189	+	final ExceptionalCompletableFutureFunction r =
3190	+	new ExceptionalCompletableFutureFunction(m);
3191	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3192	+	if (!createIncomplete) f.completeExceptionally(ex);
3193	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3194	+	if (createIncomplete) f.completeExceptionally(ex);
3195	+
3196	+	checkCompletedExceptionally(f, ex);
3197	+	checkCompletedNormally(g, r.value);
3198	+	r.assertInvoked();
3199	+	}}
3200	+
3201	+	/**
3202	+	* exceptionallyCompose completes exceptionally on exception if action does
3203	+	*/
3204	+	public void testExceptionallyCompose_actionFailed() {
3205	+	for (ExecutionMode m : ExecutionMode.values())
3206	+	for (boolean createIncomplete : new boolean[] { true, false })
3207	+	for (Integer v1 : new Integer[] { 1, null })
3208	+	{
3209	+	final CFException ex = new CFException();
3210	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3211	+	final FailingExceptionalCompletableFutureFunction r
3212	+	= new FailingExceptionalCompletableFutureFunction(m);
3213	+	if (!createIncomplete) f.completeExceptionally(ex);
3214	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3215	+	if (createIncomplete) f.completeExceptionally(ex);
3216	+
3217	+	checkCompletedExceptionally(f, ex);
3218	+	checkCompletedWithWrappedException(g, r.ex);
3219	+	r.assertInvoked();
3220	+	}}
3221	+
3222	+
3223		// other static methods
3224
3225		/**
#	Line 2922 | Line 3236 | public class CompletableFutureTest exten
3236		* when all components complete normally
3237		*/
3238		public void testAllOf_normal() throws Exception {
3239	<	for (int k = 1; k < 20; ++k) {
3239	>	for (int k = 1; k < 10; k++) {
3240		CompletableFuture<Integer>[] fs
3241		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3242	<	for (int i = 0; i < k; ++i)
3242	>	for (int i = 0; i < k; i++)
3243		fs[i] = new CompletableFuture<>();
3244		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3245	<	for (int i = 0; i < k; ++i) {
3245	>	for (int i = 0; i < k; i++) {
3246		checkIncomplete(f);
3247		checkIncomplete(CompletableFuture.allOf(fs));
3248		fs[i].complete(one);
#	Line 2938 | Line 3252 | public class CompletableFutureTest exten
3252		}
3253		}
3254
3255	<	public void testAllOf_backwards() throws Exception {
3256	<	for (int k = 1; k < 20; ++k) {
3255	>	public void testAllOf_normal_backwards() throws Exception {
3256	>	for (int k = 1; k < 10; k++) {
3257		CompletableFuture<Integer>[] fs
3258		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3259	<	for (int i = 0; i < k; ++i)
3259	>	for (int i = 0; i < k; i++)
3260		fs[i] = new CompletableFuture<>();
3261		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3262		for (int i = k - 1; i >= 0; i--) {
#	Line 2955 | Line 3269 | public class CompletableFutureTest exten
3269		}
3270		}
3271
3272	+	public void testAllOf_exceptional() throws Exception {
3273	+	for (int k = 1; k < 10; k++) {
3274	+	CompletableFuture<Integer>[] fs
3275	+	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3276	+	CFException ex = new CFException();
3277	+	for (int i = 0; i < k; i++)
3278	+	fs[i] = new CompletableFuture<>();
3279	+	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3280	+	for (int i = 0; i < k; i++) {
3281	+	checkIncomplete(f);
3282	+	checkIncomplete(CompletableFuture.allOf(fs));
3283	+	if (i != k / 2) {
3284	+	fs[i].complete(i);
3285	+	checkCompletedNormally(fs[i], i);
3286	+	} else {
3287	+	fs[i].completeExceptionally(ex);
3288	+	checkCompletedExceptionally(fs[i], ex);
3289	+	}
3290	+	}
3291	+	checkCompletedWithWrappedException(f, ex);
3292	+	checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3293	+	}
3294	+	}
3295	+
3296		/**
3297		* anyOf(no component futures) returns an incomplete future
3298		*/
3299		public void testAnyOf_empty() throws Exception {
3300	+	for (Integer v1 : new Integer[] { 1, null })
3301	+	{
3302		CompletableFuture<Object> f = CompletableFuture.anyOf();
3303		checkIncomplete(f);
3304	<	}
3304	>
3305	>	f.complete(v1);
3306	>	checkCompletedNormally(f, v1);
3307	>	}}
3308
3309		/**
3310		* anyOf returns a future completed normally with a value when
3311		* a component future does
3312		*/
3313		public void testAnyOf_normal() throws Exception {
3314	<	for (int k = 0; k < 10; ++k) {
3314	>	for (int k = 0; k < 10; k++) {
3315		CompletableFuture[] fs = new CompletableFuture[k];
3316	<	for (int i = 0; i < k; ++i)
3316	>	for (int i = 0; i < k; i++)
3317		fs[i] = new CompletableFuture<>();
3318		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3319		checkIncomplete(f);
3320	<	for (int i = 0; i < k; ++i) {
3321	<	fs[i].complete(one);
3322	<	checkCompletedNormally(f, one);
3323	<	checkCompletedNormally(CompletableFuture.anyOf(fs), one);
3320	>	for (int i = 0; i < k; i++) {
3321	>	fs[i].complete(i);
3322	>	checkCompletedNormally(f, 0);
3323	>	int x = (int) CompletableFuture.anyOf(fs).join();
3324	>	assertTrue(0 <= x && x <= i);
3325	>	}
3326	>	}
3327	>	}
3328	>	public void testAnyOf_normal_backwards() throws Exception {
3329	>	for (int k = 0; k < 10; k++) {
3330	>	CompletableFuture[] fs = new CompletableFuture[k];
3331	>	for (int i = 0; i < k; i++)
3332	>	fs[i] = new CompletableFuture<>();
3333	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3334	>	checkIncomplete(f);
3335	>	for (int i = k - 1; i >= 0; i--) {
3336	>	fs[i].complete(i);
3337	>	checkCompletedNormally(f, k - 1);
3338	>	int x = (int) CompletableFuture.anyOf(fs).join();
3339	>	assertTrue(i <= x && x <= k - 1);
3340		}
3341		}
3342		}
#	Line 2986 | Line 3345 | public class CompletableFutureTest exten
3345		* anyOf result completes exceptionally when any component does.
3346		*/
3347		public void testAnyOf_exceptional() throws Exception {
3348	<	for (int k = 0; k < 10; ++k) {
3348	>	for (int k = 0; k < 10; k++) {
3349	>	CompletableFuture[] fs = new CompletableFuture[k];
3350	>	CFException[] exs = new CFException[k];
3351	>	for (int i = 0; i < k; i++) {
3352	>	fs[i] = new CompletableFuture<>();
3353	>	exs[i] = new CFException();
3354	>	}
3355	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3356	>	checkIncomplete(f);
3357	>	for (int i = 0; i < k; i++) {
3358	>	fs[i].completeExceptionally(exs[i]);
3359	>	checkCompletedWithWrappedException(f, exs[0]);
3360	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3361	>	}
3362	>	}
3363	>	}
3364	>
3365	>	public void testAnyOf_exceptional_backwards() throws Exception {
3366	>	for (int k = 0; k < 10; k++) {
3367		CompletableFuture[] fs = new CompletableFuture[k];
3368	<	for (int i = 0; i < k; ++i)
3368	>	CFException[] exs = new CFException[k];
3369	>	for (int i = 0; i < k; i++) {
3370		fs[i] = new CompletableFuture<>();
3371	+	exs[i] = new CFException();
3372	+	}
3373		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3374		checkIncomplete(f);
3375	<	for (int i = 0; i < k; ++i) {
3376	<	fs[i].completeExceptionally(new CFException());
3377	<	checkCompletedWithWrappedCFException(f);
3375	>	for (int i = k - 1; i >= 0; i--) {
3376	>	fs[i].completeExceptionally(exs[i]);
3377	>	checkCompletedWithWrappedException(f, exs[k - 1]);
3378		checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3379		}
3380		}
#	Line 3003 | Line 3383 | public class CompletableFutureTest exten
3383		/**
3384		* Completion methods throw NullPointerException with null arguments
3385		*/
3386	+	@SuppressWarnings("FutureReturnValueIgnored")
3387		public void testNPE() {
3388		CompletableFuture<Integer> f = new CompletableFuture<>();
3389		CompletableFuture<Integer> g = new CompletableFuture<>();
3390		CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
3010	–	CompletableFuture<?> h;
3391		ThreadExecutor exec = new ThreadExecutor();
3392
3393		Runnable[] throwingActions = {
3394		() -> CompletableFuture.supplyAsync(null),
3395		() -> CompletableFuture.supplyAsync(null, exec),
3396	<	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.DEFAULT, 42), null),
3396	>	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3397
3398		() -> CompletableFuture.runAsync(null),
3399		() -> CompletableFuture.runAsync(null, exec),
#	Line 3023 | Line 3403 | public class CompletableFutureTest exten
3403
3404		() -> f.thenApply(null),
3405		() -> f.thenApplyAsync(null),
3406	<	() -> f.thenApplyAsync((x) -> x, null),
3406	>	() -> f.thenApplyAsync(x -> x, null),
3407		() -> f.thenApplyAsync(null, exec),
3408
3409		() -> f.thenAccept(null),
3410		() -> f.thenAcceptAsync(null),
3411	<	() -> f.thenAcceptAsync((x) -> {} , null),
3411	>	() -> f.thenAcceptAsync(x -> {} , null),
3412		() -> f.thenAcceptAsync(null, exec),
3413
3414		() -> f.thenRun(null),
#	Line 3063 | Line 3443 | public class CompletableFutureTest exten
3443		() -> f.applyToEither(g, null),
3444		() -> f.applyToEitherAsync(g, null),
3445		() -> f.applyToEitherAsync(g, null, exec),
3446	<	() -> f.applyToEither(nullFuture, (x) -> x),
3447	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x),
3448	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
3449	<	() -> f.applyToEitherAsync(g, (x) -> x, null),
3446	>	() -> f.applyToEither(nullFuture, x -> x),
3447	>	() -> f.applyToEitherAsync(nullFuture, x -> x),
3448	>	() -> f.applyToEitherAsync(nullFuture, x -> x, exec),
3449	>	() -> f.applyToEitherAsync(g, x -> x, null),
3450
3451		() -> f.acceptEither(g, null),
3452		() -> f.acceptEitherAsync(g, null),
3453		() -> f.acceptEitherAsync(g, null, exec),
3454	<	() -> f.acceptEither(nullFuture, (x) -> {}),
3455	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}),
3456	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
3457	<	() -> f.acceptEitherAsync(g, (x) -> {}, null),
3454	>	() -> f.acceptEither(nullFuture, x -> {}),
3455	>	() -> f.acceptEitherAsync(nullFuture, x -> {}),
3456	>	() -> f.acceptEitherAsync(nullFuture, x -> {}, exec),
3457	>	() -> f.acceptEitherAsync(g, x -> {}, null),
3458
3459		() -> f.runAfterEither(g, null),
3460		() -> f.runAfterEitherAsync(g, null),
#	Line 3104 | Line 3484 | public class CompletableFutureTest exten
3484		() -> CompletableFuture.anyOf(null, f),
3485
3486		() -> f.obtrudeException(null),
3487	+
3488	+	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3489	+	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3490	+	() -> CompletableFuture.delayedExecutor(1L, null),
3491	+
3492	+	() -> f.orTimeout(1L, null),
3493	+	() -> f.completeOnTimeout(42, 1L, null),
3494	+
3495	+	() -> CompletableFuture.failedFuture(null),
3496	+	() -> CompletableFuture.failedStage(null),
3497		};
3498
3499		assertThrows(NullPointerException.class, throwingActions);
#	Line 3111 | Line 3501 | public class CompletableFutureTest exten
3501		}
3502
3503		/**
3504	+	* Test submissions to an executor that rejects all tasks.
3505	+	*/
3506	+	public void testRejectingExecutor() {
3507	+	for (Integer v : new Integer[] { 1, null })
3508	+	{
3509	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3510	+
3511	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3512	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3513	+
3514	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3515	+
3516	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3517	+	srcs.add(complete);
3518	+	srcs.add(incomplete);
3519	+
3520	+	for (CompletableFuture<Integer> src : srcs) {
3521	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3522	+	fs.add(src.thenRunAsync(() -> {}, e));
3523	+	fs.add(src.thenAcceptAsync(z -> {}, e));
3524	+	fs.add(src.thenApplyAsync(z -> z, e));
3525	+
3526	+	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3527	+	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3528	+	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3529	+
3530	+	fs.add(src.applyToEitherAsync(src, z -> z, e));
3531	+	fs.add(src.acceptEitherAsync(src, z -> {}, e));
3532	+	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3533	+
3534	+	fs.add(src.thenComposeAsync(z -> null, e));
3535	+	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3536	+	fs.add(src.handleAsync((z, t) -> null, e));
3537	+
3538	+	for (CompletableFuture<?> future : fs) {
3539	+	if (src.isDone())
3540	+	checkCompletedWithWrappedException(future, e.ex);
3541	+	else
3542	+	checkIncomplete(future);
3543	+	}
3544	+	futures.addAll(fs);
3545	+	}
3546	+
3547	+	{
3548	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3549	+
3550	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3551	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3552	+
3553	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3554	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3555	+
3556	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3557	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3558	+
3559	+	for (CompletableFuture<?> future : fs)
3560	+	checkIncomplete(future);
3561	+	futures.addAll(fs);
3562	+	}
3563	+
3564	+	{
3565	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3566	+
3567	+	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3568	+	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3569	+
3570	+	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3571	+	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3572	+
3573	+	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3574	+	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3575	+
3576	+	for (CompletableFuture<?> future : fs)
3577	+	checkCompletedWithWrappedException(future, e.ex);
3578	+	futures.addAll(fs);
3579	+	}
3580	+
3581	+	incomplete.complete(v);
3582	+
3583	+	for (CompletableFuture<?> future : futures)
3584	+	checkCompletedWithWrappedException(future, e.ex);
3585	+
3586	+	assertEquals(futures.size(), e.count.get());
3587	+	}}
3588	+
3589	+	/**
3590	+	* Test submissions to an executor that rejects all tasks, but
3591	+	* should never be invoked because the dependent future is
3592	+	* explicitly completed.
3593	+	*/
3594	+	public void testRejectingExecutorNeverInvoked() {
3595	+	for (Integer v : new Integer[] { 1, null })
3596	+	{
3597	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3598	+
3599	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3600	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3601	+
3602	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3603	+
3604	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3605	+	srcs.add(complete);
3606	+	srcs.add(incomplete);
3607	+
3608	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3609	+	fs.add(incomplete.thenRunAsync(() -> {}, e));
3610	+	fs.add(incomplete.thenAcceptAsync(z -> {}, e));
3611	+	fs.add(incomplete.thenApplyAsync(z -> z, e));
3612	+
3613	+	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3614	+	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3615	+	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3616	+
3617	+	fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e));
3618	+	fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e));
3619	+	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3620	+
3621	+	fs.add(incomplete.thenComposeAsync(z -> null, e));
3622	+	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3623	+	fs.add(incomplete.handleAsync((z, t) -> null, e));
3624	+
3625	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3626	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3627	+
3628	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3629	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3630	+
3631	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3632	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3633	+
3634	+	for (CompletableFuture<?> future : fs)
3635	+	checkIncomplete(future);
3636	+
3637	+	for (CompletableFuture<?> future : fs)
3638	+	future.complete(null);
3639	+
3640	+	incomplete.complete(v);
3641	+
3642	+	for (CompletableFuture<?> future : fs)
3643	+	checkCompletedNormally(future, null);
3644	+
3645	+	assertEquals(0, e.count.get());
3646	+	}}
3647	+
3648	+	/**
3649		* toCompletableFuture returns this CompletableFuture.
3650		*/
3651		public void testToCompletableFuture() {
#	Line 3118 | Line 3653 | public class CompletableFutureTest exten
3653		assertSame(f, f.toCompletableFuture());
3654		}
3655
3656	+	// jdk9
3657	+
3658	+	/**
3659	+	* newIncompleteFuture returns an incomplete CompletableFuture
3660	+	*/
3661	+	public void testNewIncompleteFuture() {
3662	+	for (Integer v1 : new Integer[] { 1, null })
3663	+	{
3664	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3665	+	CompletableFuture<Integer> g = f.newIncompleteFuture();
3666	+	checkIncomplete(f);
3667	+	checkIncomplete(g);
3668	+	f.complete(v1);
3669	+	checkCompletedNormally(f, v1);
3670	+	checkIncomplete(g);
3671	+	g.complete(v1);
3672	+	checkCompletedNormally(g, v1);
3673	+	assertSame(g.getClass(), CompletableFuture.class);
3674	+	}}
3675	+
3676	+	/**
3677	+	* completedStage returns a completed CompletionStage
3678	+	*/
3679	+	public void testCompletedStage() {
3680	+	AtomicInteger x = new AtomicInteger(0);
3681	+	AtomicReference<Throwable> r = new AtomicReference<>();
3682	+	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3683	+	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3684	+	assertEquals(x.get(), 1);
3685	+	assertNull(r.get());
3686	+	}
3687	+
3688	+	/**
3689	+	* defaultExecutor by default returns the commonPool if
3690	+	* it supports more than one thread.
3691	+	*/
3692	+	public void testDefaultExecutor() {
3693	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3694	+	Executor e = f.defaultExecutor();
3695	+	Executor c = ForkJoinPool.commonPool();
3696	+	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3697	+	assertSame(e, c);
3698	+	else
3699	+	assertNotSame(e, c);
3700	+	}
3701	+
3702	+	/**
3703	+	* failedFuture returns a CompletableFuture completed
3704	+	* exceptionally with the given Exception
3705	+	*/
3706	+	public void testFailedFuture() {
3707	+	CFException ex = new CFException();
3708	+	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3709	+	checkCompletedExceptionally(f, ex);
3710	+	}
3711	+
3712	+	/**
3713	+	* failedFuture(null) throws NPE
3714	+	*/
3715	+	public void testFailedFuture_null() {
3716	+	try {
3717	+	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3718	+	shouldThrow();
3719	+	} catch (NullPointerException success) {}
3720	+	}
3721	+
3722	+	/**
3723	+	* copy returns a CompletableFuture that is completed normally,
3724	+	* with the same value, when source is.
3725	+	*/
3726	+	public void testCopy_normalCompletion() {
3727	+	for (boolean createIncomplete : new boolean[] { true, false })
3728	+	for (Integer v1 : new Integer[] { 1, null })
3729	+	{
3730	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3731	+	if (!createIncomplete) assertTrue(f.complete(v1));
3732	+	CompletableFuture<Integer> g = f.copy();
3733	+	if (createIncomplete) {
3734	+	checkIncomplete(f);
3735	+	checkIncomplete(g);
3736	+	assertTrue(f.complete(v1));
3737	+	}
3738	+	checkCompletedNormally(f, v1);
3739	+	checkCompletedNormally(g, v1);
3740	+	}}
3741	+
3742	+	/**
3743	+	* copy returns a CompletableFuture that is completed exceptionally
3744	+	* when source is.
3745	+	*/
3746	+	public void testCopy_exceptionalCompletion() {
3747	+	for (boolean createIncomplete : new boolean[] { true, false })
3748	+	{
3749	+	CFException ex = new CFException();
3750	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3751	+	if (!createIncomplete) f.completeExceptionally(ex);
3752	+	CompletableFuture<Integer> g = f.copy();
3753	+	if (createIncomplete) {
3754	+	checkIncomplete(f);
3755	+	checkIncomplete(g);
3756	+	f.completeExceptionally(ex);
3757	+	}
3758	+	checkCompletedExceptionally(f, ex);
3759	+	checkCompletedWithWrappedException(g, ex);
3760	+	}}
3761	+
3762	+	/**
3763	+	* Completion of a copy does not complete its source.
3764	+	*/
3765	+	public void testCopy_oneWayPropagation() {
3766	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3767	+	assertTrue(f.copy().complete(1));
3768	+	assertTrue(f.copy().complete(null));
3769	+	assertTrue(f.copy().cancel(true));
3770	+	assertTrue(f.copy().cancel(false));
3771	+	assertTrue(f.copy().completeExceptionally(new CFException()));
3772	+	checkIncomplete(f);
3773	+	}
3774	+
3775	+	/**
3776	+	* minimalCompletionStage returns a CompletableFuture that is
3777	+	* completed normally, with the same value, when source is.
3778	+	*/
3779	+	public void testMinimalCompletionStage() {
3780	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3781	+	CompletionStage<Integer> g = f.minimalCompletionStage();
3782	+	AtomicInteger x = new AtomicInteger(0);
3783	+	AtomicReference<Throwable> r = new AtomicReference<>();
3784	+	checkIncomplete(f);
3785	+	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3786	+	f.complete(1);
3787	+	checkCompletedNormally(f, 1);
3788	+	assertEquals(x.get(), 1);
3789	+	assertNull(r.get());
3790	+	}
3791	+
3792	+	/**
3793	+	* minimalCompletionStage returns a CompletableFuture that is
3794	+	* completed exceptionally when source is.
3795	+	*/
3796	+	public void testMinimalCompletionStage2() {
3797	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3798	+	CompletionStage<Integer> g = f.minimalCompletionStage();
3799	+	AtomicInteger x = new AtomicInteger(0);
3800	+	AtomicReference<Throwable> r = new AtomicReference<>();
3801	+	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3802	+	checkIncomplete(f);
3803	+	CFException ex = new CFException();
3804	+	f.completeExceptionally(ex);
3805	+	checkCompletedExceptionally(f, ex);
3806	+	assertEquals(x.get(), 0);
3807	+	assertEquals(r.get().getCause(), ex);
3808	+	}
3809	+
3810	+	/**
3811	+	* failedStage returns a CompletionStage completed
3812	+	* exceptionally with the given Exception
3813	+	*/
3814	+	public void testFailedStage() {
3815	+	CFException ex = new CFException();
3816	+	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3817	+	AtomicInteger x = new AtomicInteger(0);
3818	+	AtomicReference<Throwable> r = new AtomicReference<>();
3819	+	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3820	+	assertEquals(x.get(), 0);
3821	+	assertEquals(r.get(), ex);
3822	+	}
3823	+
3824	+	/**
3825	+	* completeAsync completes with value of given supplier
3826	+	*/
3827	+	public void testCompleteAsync() {
3828	+	for (Integer v1 : new Integer[] { 1, null })
3829	+	{
3830	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3831	+	f.completeAsync(() -> v1);
3832	+	f.join();
3833	+	checkCompletedNormally(f, v1);
3834	+	}}
3835	+
3836	+	/**
3837	+	* completeAsync completes exceptionally if given supplier throws
3838	+	*/
3839	+	public void testCompleteAsync2() {
3840	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3841	+	CFException ex = new CFException();
3842	+	f.completeAsync(() -> { throw ex; });
3843	+	try {
3844	+	f.join();
3845	+	shouldThrow();
3846	+	} catch (CompletionException success) {}
3847	+	checkCompletedWithWrappedException(f, ex);
3848	+	}
3849	+
3850	+	/**
3851	+	* completeAsync with given executor completes with value of given supplier
3852	+	*/
3853	+	public void testCompleteAsync3() {
3854	+	for (Integer v1 : new Integer[] { 1, null })
3855	+	{
3856	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3857	+	ThreadExecutor executor = new ThreadExecutor();
3858	+	f.completeAsync(() -> v1, executor);
3859	+	assertSame(v1, f.join());
3860	+	checkCompletedNormally(f, v1);
3861	+	assertEquals(1, executor.count.get());
3862	+	}}
3863	+
3864	+	/**
3865	+	* completeAsync with given executor completes exceptionally if
3866	+	* given supplier throws
3867	+	*/
3868	+	public void testCompleteAsync4() {
3869	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3870	+	CFException ex = new CFException();
3871	+	ThreadExecutor executor = new ThreadExecutor();
3872	+	f.completeAsync(() -> { throw ex; }, executor);
3873	+	try {
3874	+	f.join();
3875	+	shouldThrow();
3876	+	} catch (CompletionException success) {}
3877	+	checkCompletedWithWrappedException(f, ex);
3878	+	assertEquals(1, executor.count.get());
3879	+	}
3880	+
3881	+	/**
3882	+	* orTimeout completes with TimeoutException if not complete
3883	+	*/
3884	+	public void testOrTimeout_timesOut() {
3885	+	long timeoutMillis = timeoutMillis();
3886	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3887	+	long startTime = System.nanoTime();
3888	+	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3889	+	checkCompletedWithTimeoutException(f);
3890	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3891	+	}
3892	+
3893	+	/**
3894	+	* orTimeout completes normally if completed before timeout
3895	+	*/
3896	+	public void testOrTimeout_completed() {
3897	+	for (Integer v1 : new Integer[] { 1, null })
3898	+	{
3899	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3900	+	CompletableFuture<Integer> g = new CompletableFuture<>();
3901	+	long startTime = System.nanoTime();
3902	+	f.complete(v1);
3903	+	assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3904	+	assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3905	+	g.complete(v1);
3906	+	checkCompletedNormally(f, v1);
3907	+	checkCompletedNormally(g, v1);
3908	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3909	+	}}
3910	+
3911	+	/**
3912	+	* completeOnTimeout completes with given value if not complete
3913	+	*/
3914	+	public void testCompleteOnTimeout_timesOut() {
3915	+	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3916	+	() -> testCompleteOnTimeout_timesOut(null));
3917	+	}
3918	+
3919	+	/**
3920	+	* completeOnTimeout completes with given value if not complete
3921	+	*/
3922	+	public void testCompleteOnTimeout_timesOut(Integer v) {
3923	+	long timeoutMillis = timeoutMillis();
3924	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3925	+	long startTime = System.nanoTime();
3926	+	assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS));
3927	+	assertSame(v, f.join());
3928	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3929	+	f.complete(99);         // should have no effect
3930	+	checkCompletedNormally(f, v);
3931	+	}
3932	+
3933	+	/**
3934	+	* completeOnTimeout has no effect if completed within timeout
3935	+	*/
3936	+	public void testCompleteOnTimeout_completed() {
3937	+	for (Integer v1 : new Integer[] { 1, null })
3938	+	{
3939	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3940	+	CompletableFuture<Integer> g = new CompletableFuture<>();
3941	+	long startTime = System.nanoTime();
3942	+	f.complete(v1);
3943	+	assertSame(f, f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3944	+	assertSame(g, g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3945	+	g.complete(v1);
3946	+	checkCompletedNormally(f, v1);
3947	+	checkCompletedNormally(g, v1);
3948	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3949	+	}}
3950	+
3951	+	/**
3952	+	* delayedExecutor returns an executor that delays submission
3953	+	*/
3954	+	public void testDelayedExecutor() {
3955	+	testInParallel(() -> testDelayedExecutor(null, null),
3956	+	() -> testDelayedExecutor(null, 1),
3957	+	() -> testDelayedExecutor(new ThreadExecutor(), 1),
3958	+	() -> testDelayedExecutor(new ThreadExecutor(), 1));
3959	+	}
3960	+
3961	+	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
3962	+	long timeoutMillis = timeoutMillis();
3963	+	// Use an "unreasonably long" long timeout to catch lingering threads
3964	+	long longTimeoutMillis = 1000 * 60 * 60 * 24;
3965	+	final Executor delayer, longDelayer;
3966	+	if (executor == null) {
3967	+	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
3968	+	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
3969	+	} else {
3970	+	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
3971	+	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
3972	+	}
3973	+	long startTime = System.nanoTime();
3974	+	CompletableFuture<Integer> f =
3975	+	CompletableFuture.supplyAsync(() -> v, delayer);
3976	+	CompletableFuture<Integer> g =
3977	+	CompletableFuture.supplyAsync(() -> v, longDelayer);
3978	+
3979	+	assertNull(g.getNow(null));
3980	+
3981	+	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
3982	+	long millisElapsed = millisElapsedSince(startTime);
3983	+	assertTrue(millisElapsed >= timeoutMillis);
3984	+	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
3985	+
3986	+	checkCompletedNormally(f, v);
3987	+
3988	+	checkIncomplete(g);
3989	+	assertTrue(g.cancel(true));
3990	+	}
3991	+
3992		//--- tests of implementation details; not part of official tck ---
3993
3994		Object resultOf(CompletableFuture<?> f) {
3995	+	SecurityManager sm = System.getSecurityManager();
3996	+	if (sm != null) {
3997	+	try {
3998	+	System.setSecurityManager(null);
3999	+	} catch (SecurityException giveUp) {
4000	+	return "Reflection not available";
4001	+	}
4002	+	}
4003	+
4004		try {
4005		java.lang.reflect.Field resultField
4006		= CompletableFuture.class.getDeclaredField("result");
4007		resultField.setAccessible(true);
4008		return resultField.get(f);
4009	<	} catch (Throwable t) { throw new AssertionError(t); }
4009	>	} catch (Throwable t) {
4010	>	throw new AssertionError(t);
4011	>	} finally {
4012	>	if (sm != null) System.setSecurityManager(sm);
4013	>	}
4014		}
4015
4016		public void testExceptionPropagationReusesResultObject() {
#	Line 3137 | Line 4021 | public class CompletableFutureTest exten
4021		final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
4022		final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4023
4024	<	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> dependentFactories
4025	<	= new ArrayList<>();
4026	<
3143	<	dependentFactories.add((y) -> m.thenRun(y, new Noop(m)));
3144	<	dependentFactories.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
3145	<	dependentFactories.add((y) -> m.thenApply(y, new IncFunction(m)));
3146	<
3147	<	dependentFactories.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
3148	<	dependentFactories.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
3149	<	dependentFactories.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
4024	>	final Runnable noopRunnable = new Noop(m);
4025	>	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
4026	>	final Function<Integer, Integer> incFunction = new IncFunction(m);
4027
4028	<	dependentFactories.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
4029	<	dependentFactories.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3153	<	dependentFactories.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
3154	<
3155	<	dependentFactories.add((y) -> m.whenComplete(y, (Integer x, Throwable t) -> {}));
4028	>	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
4029	>	= new ArrayList<>();
4030
4031	<	dependentFactories.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
4031	>	funs.add(y -> m.thenRun(y, noopRunnable));
4032	>	funs.add(y -> m.thenAccept(y, noopConsumer));
4033	>	funs.add(y -> m.thenApply(y, incFunction));
4034	>
4035	>	funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable));
4036	>	funs.add(y -> m.acceptEither(y, incomplete, noopConsumer));
4037	>	funs.add(y -> m.applyToEither(y, incomplete, incFunction));
4038	>
4039	>	funs.add(y -> m.runAfterBoth(y, v42, noopRunnable));
4040	>	funs.add(y -> m.runAfterBoth(v42, y, noopRunnable));
4041	>	funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4042	>	funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
4043	>	funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m)));
4044	>	funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m)));
4045	>
4046	>	funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
4047	>
4048	>	funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m)));
4049	>
4050	>	funs.add(y -> CompletableFuture.allOf(y));
4051	>	funs.add(y -> CompletableFuture.allOf(y, v42));
4052	>	funs.add(y -> CompletableFuture.allOf(v42, y));
4053	>	funs.add(y -> CompletableFuture.anyOf(y));
4054	>	funs.add(y -> CompletableFuture.anyOf(y, incomplete));
4055	>	funs.add(y -> CompletableFuture.anyOf(incomplete, y));
4056
4057		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4058	<	dependentFactory : dependentFactories) {
4058	>	fun : funs) {
4059		CompletableFuture<Integer> f = new CompletableFuture<>();
4060		f.completeExceptionally(ex);
4061	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4061	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4062		checkCompletedWithWrappedException(src, ex);
4063	<	CompletableFuture<?> dep = dependentFactory.apply(src);
4063	>	CompletableFuture<?> dep = fun.apply(src);
4064		checkCompletedWithWrappedException(dep, ex);
4065		assertSame(resultOf(src), resultOf(dep));
4066		}
4067
4068		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4069	<	dependentFactory : dependentFactories) {
4069	>	fun : funs) {
4070		CompletableFuture<Integer> f = new CompletableFuture<>();
4071	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4072	<	CompletableFuture<?> dep = dependentFactory.apply(src);
4071	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4072	>	CompletableFuture<?> dep = fun.apply(src);
4073		f.completeExceptionally(ex);
4074		checkCompletedWithWrappedException(src, ex);
4075		checkCompletedWithWrappedException(dep, ex);
#	Line 3180 | Line 4078 | public class CompletableFutureTest exten
4078
4079		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
4080		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4081	<	dependentFactory : dependentFactories) {
4081	>	fun : funs) {
4082		CompletableFuture<Integer> f = new CompletableFuture<>();
4083		f.cancel(mayInterruptIfRunning);
4084		checkCancelled(f);
4085	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4085	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4086		checkCompletedWithWrappedCancellationException(src);
4087	<	CompletableFuture<?> dep = dependentFactory.apply(src);
4087	>	CompletableFuture<?> dep = fun.apply(src);
4088		checkCompletedWithWrappedCancellationException(dep);
4089		assertSame(resultOf(src), resultOf(dep));
4090		}
4091
4092		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
4093		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4094	<	dependentFactory : dependentFactories) {
4094	>	fun : funs) {
4095		CompletableFuture<Integer> f = new CompletableFuture<>();
4096	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4097	<	CompletableFuture<?> dep = dependentFactory.apply(src);
4096	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4097	>	CompletableFuture<?> dep = fun.apply(src);
4098		f.cancel(mayInterruptIfRunning);
4099		checkCancelled(f);
4100		checkCompletedWithWrappedCancellationException(src);
#	Line 3205 | Line 4103 | public class CompletableFutureTest exten
4103		}
4104		}}
4105
4106	<	//     public void testRunAfterEither_resultDeterminedAtTimeOfCreation() {
4107	<	//         for (ExecutionMode m : ExecutionMode.values())
4108	<	//         for (boolean mayInterruptIfRunning : new boolean[] { true, false })
4109	<	//         for (Integer v1 : new Integer[] { 1, null })
4110	<	//     {
4111	<	//         final CompletableFuture<Integer> f = new CompletableFuture<>();
4112	<	//         final CompletableFuture<Integer> g = new CompletableFuture<>();
4113	<	//         final Noop[] rs = new Noop[2];
4114	<	//         for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
4115	<	//         f.complete(v1);
4116	<	//         final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
4117	<	//         final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
4118	<	//         assertTrue(g.cancel(mayInterruptIfRunning));
4119	<	//         checkCompletedNormally(h0, null);
4120	<	//         checkCompletedNormally(h1, null);
4121	<	//         for (Noop r : rs) r.assertInvoked();
4122	<	//     }}
4106	>	/**
4107	>	* Minimal completion stages throw UOE for most non-CompletionStage methods
4108	>	*/
4109	>	public void testMinimalCompletionStage_minimality() {
4110	>	if (!testImplementationDetails) return;
4111	>	Function<Method, String> toSignature =
4112	>	method -> method.getName() + Arrays.toString(method.getParameterTypes());
4113	>	Predicate<Method> isNotStatic =
4114	>	method -> (method.getModifiers() & Modifier.STATIC) == 0;
4115	>	List<Method> minimalMethods =
4116	>	Stream.of(Object.class, CompletionStage.class)
4117	>	.flatMap(klazz -> Stream.of(klazz.getMethods()))
4118	>	.filter(isNotStatic)
4119	>	.collect(Collectors.toList());
4120	>	// Methods from CompletableFuture permitted NOT to throw UOE
4121	>	String[] signatureWhitelist = {
4122	>	"newIncompleteFuture[]",
4123	>	"defaultExecutor[]",
4124	>	"minimalCompletionStage[]",
4125	>	"copy[]",
4126	>	};
4127	>	Set<String> permittedMethodSignatures =
4128	>	Stream.concat(minimalMethods.stream().map(toSignature),
4129	>	Stream.of(signatureWhitelist))
4130	>	.collect(Collectors.toSet());
4131	>	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
4132	>	.filter(isNotStatic)
4133	>	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4134	>	.collect(Collectors.toList());
4135	>
4136	>	List<CompletionStage<Integer>> stages = new ArrayList<>();
4137	>	CompletionStage<Integer> min =
4138	>	new CompletableFuture<Integer>().minimalCompletionStage();
4139	>	stages.add(min);
4140	>	stages.add(min.thenApply(x -> x));
4141	>	stages.add(CompletableFuture.completedStage(1));
4142	>	stages.add(CompletableFuture.failedStage(new CFException()));
4143	>
4144	>	List<Method> bugs = new ArrayList<>();
4145	>	for (Method method : allMethods) {
4146	>	Class<?>[] parameterTypes = method.getParameterTypes();
4147	>	Object[] args = new Object[parameterTypes.length];
4148	>	// Manufacture boxed primitives for primitive params
4149	>	for (int i = 0; i < args.length; i++) {
4150	>	Class<?> type = parameterTypes[i];
4151	>	if (parameterTypes[i] == boolean.class)
4152	>	args[i] = false;
4153	>	else if (parameterTypes[i] == int.class)
4154	>	args[i] = 0;
4155	>	else if (parameterTypes[i] == long.class)
4156	>	args[i] = 0L;
4157	>	}
4158	>	for (CompletionStage<Integer> stage : stages) {
4159	>	try {
4160	>	method.invoke(stage, args);
4161	>	bugs.add(method);
4162	>	}
4163	>	catch (java.lang.reflect.InvocationTargetException expected) {
4164	>	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4165	>	bugs.add(method);
4166	>	// expected.getCause().printStackTrace();
4167	>	}
4168	>	}
4169	>	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4170	>	}
4171	>	}
4172	>	if (!bugs.isEmpty())
4173	>	throw new Error("Methods did not throw UOE: " + bugs);
4174	>	}
4175	>
4176	>	/**
4177	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4178	>	* is completed normally, with the same value, when source is.
4179	>	*/
4180	>	public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() {
4181	>	for (boolean createIncomplete : new boolean[] { true, false })
4182	>	for (Integer v1 : new Integer[] { 1, null })
4183	>	{
4184	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4185	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4186	>	if (!createIncomplete) assertTrue(f.complete(v1));
4187	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4188	>	if (createIncomplete) {
4189	>	checkIncomplete(f);
4190	>	checkIncomplete(g);
4191	>	assertTrue(f.complete(v1));
4192	>	}
4193	>	checkCompletedNormally(f, v1);
4194	>	checkCompletedNormally(g, v1);
4195	>	}}
4196	>
4197	>	/**
4198	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4199	>	* is completed exceptionally when source is.
4200	>	*/
4201	>	public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() {
4202	>	for (boolean createIncomplete : new boolean[] { true, false })
4203	>	{
4204	>	CFException ex = new CFException();
4205	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4206	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4207	>	if (!createIncomplete) f.completeExceptionally(ex);
4208	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4209	>	if (createIncomplete) {
4210	>	checkIncomplete(f);
4211	>	checkIncomplete(g);
4212	>	f.completeExceptionally(ex);
4213	>	}
4214	>	checkCompletedExceptionally(f, ex);
4215	>	checkCompletedWithWrappedException(g, ex);
4216	>	}}
4217	>
4218	>	/**
4219	>	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4220	>	*/
4221	>	public void testMinimalCompletionStage_toCompletableFuture_mutable() {
4222	>	for (Integer v1 : new Integer[] { 1, null })
4223	>	{
4224	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4225	>	CompletionStage minimal = f.minimalCompletionStage();
4226	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4227	>	assertTrue(g.complete(v1));
4228	>	checkCompletedNormally(g, v1);
4229	>	checkIncomplete(f);
4230	>	checkIncomplete(minimal.toCompletableFuture());
4231	>	}}
4232	>
4233	>	/**
4234	>	* minimalStage.toCompletableFuture().join() awaits completion
4235	>	*/
4236	>	public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception {
4237	>	for (boolean createIncomplete : new boolean[] { true, false })
4238	>	for (Integer v1 : new Integer[] { 1, null })
4239	>	{
4240	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4241	>	if (!createIncomplete) assertTrue(f.complete(v1));
4242	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4243	>	if (createIncomplete) assertTrue(f.complete(v1));
4244	>	assertEquals(v1, minimal.toCompletableFuture().join());
4245	>	assertEquals(v1, minimal.toCompletableFuture().get());
4246	>	checkCompletedNormally(minimal.toCompletableFuture(), v1);
4247	>	}}
4248	>
4249	>	/**
4250	>	* Completion of a toCompletableFuture copy of a minimal stage
4251	>	* does not complete its source.
4252	>	*/
4253	>	public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() {
4254	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4255	>	CompletionStage<Integer> g = f.minimalCompletionStage();
4256	>	assertTrue(g.toCompletableFuture().complete(1));
4257	>	assertTrue(g.toCompletableFuture().complete(null));
4258	>	assertTrue(g.toCompletableFuture().cancel(true));
4259	>	assertTrue(g.toCompletableFuture().cancel(false));
4260	>	assertTrue(g.toCompletableFuture().completeExceptionally(new CFException()));
4261	>	checkIncomplete(g.toCompletableFuture());
4262	>	f.complete(1);
4263	>	checkCompletedNormally(g.toCompletableFuture(), 1);
4264	>	}
4265	>
4266	>	/** Demo utility method for external reliable toCompletableFuture */
4267	>	static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) {
4268	>	CompletableFuture<T> f = new CompletableFuture<>();
4269	>	stage.handle((T t, Throwable ex) -> {
4270	>	if (ex != null) f.completeExceptionally(ex);
4271	>	else f.complete(t);
4272	>	return null;
4273	>	});
4274	>	return f;
4275	>	}
4276	>
4277	>	/** Demo utility method to join a CompletionStage */
4278	>	static <T> T join(CompletionStage<T> stage) {
4279	>	return toCompletableFuture(stage).join();
4280	>	}
4281	>
4282	>	/**
4283	>	* Joining a minimal stage "by hand" works
4284	>	*/
4285	>	public void testMinimalCompletionStage_join_by_hand() {
4286	>	for (boolean createIncomplete : new boolean[] { true, false })
4287	>	for (Integer v1 : new Integer[] { 1, null })
4288	>	{
4289	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4290	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4291	>	CompletableFuture<Integer> g = new CompletableFuture<>();
4292	>	if (!createIncomplete) assertTrue(f.complete(v1));
4293	>	minimal.thenAccept(x -> g.complete(x));
4294	>	if (createIncomplete) assertTrue(f.complete(v1));
4295	>	g.join();
4296	>	checkCompletedNormally(g, v1);
4297	>	checkCompletedNormally(f, v1);
4298	>	assertEquals(v1, join(minimal));
4299	>	}}
4300	>
4301	>	static class Monad {
4302	>	static class ZeroException extends RuntimeException {
4303	>	public ZeroException() { super("monadic zero"); }
4304	>	}
4305	>	// "return", "unit"
4306	>	static <T> CompletableFuture<T> unit(T value) {
4307	>	return completedFuture(value);
4308	>	}
4309	>	// monadic zero ?
4310	>	static <T> CompletableFuture<T> zero() {
4311	>	return failedFuture(new ZeroException());
4312	>	}
4313	>	// >=>
4314	>	static <T,U,V> Function<T, CompletableFuture<V>> compose
4315	>	(Function<T, CompletableFuture<U>> f,
4316	>	Function<U, CompletableFuture<V>> g) {
4317	>	return x -> f.apply(x).thenCompose(g);
4318	>	}
4319	>
4320	>	static void assertZero(CompletableFuture<?> f) {
4321	>	try {
4322	>	f.getNow(null);
4323	>	throw new AssertionError("should throw");
4324	>	} catch (CompletionException success) {
4325	>	assertTrue(success.getCause() instanceof ZeroException);
4326	>	}
4327	>	}
4328	>
4329	>	static <T> void assertFutureEquals(CompletableFuture<T> f,
4330	>	CompletableFuture<T> g) {
4331	>	T fval = null, gval = null;
4332	>	Throwable fex = null, gex = null;
4333	>
4334	>	try { fval = f.get(); }
4335	>	catch (ExecutionException ex) { fex = ex.getCause(); }
4336	>	catch (Throwable ex) { fex = ex; }
4337	>
4338	>	try { gval = g.get(); }
4339	>	catch (ExecutionException ex) { gex = ex.getCause(); }
4340	>	catch (Throwable ex) { gex = ex; }
4341	>
4342	>	if (fex != null || gex != null)
4343	>	assertSame(fex.getClass(), gex.getClass());
4344	>	else
4345	>	assertEquals(fval, gval);
4346	>	}
4347	>
4348	>	static class PlusFuture<T> extends CompletableFuture<T> {
4349	>	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4350	>	}
4351	>
4352	>	/** Implements "monadic plus". */
4353	>	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
4354	>	CompletableFuture<? extends T> g) {
4355	>	PlusFuture<T> plus = new PlusFuture<T>();
4356	>	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
4357	>	try {
4358	>	if (ex == null) {
4359	>	if (plus.complete(result))
4360	>	if (plus.firstFailure.get() != null)
4361	>	plus.firstFailure.set(null);
4362	>	}
4363	>	else if (plus.firstFailure.compareAndSet(null, ex)) {
4364	>	if (plus.isDone())
4365	>	plus.firstFailure.set(null);
4366	>	}
4367	>	else {
4368	>	// first failure has precedence
4369	>	Throwable first = plus.firstFailure.getAndSet(null);
4370	>
4371	>	// may fail with "Self-suppression not permitted"
4372	>	try { first.addSuppressed(ex); }
4373	>	catch (Exception ignored) {}
4374	>
4375	>	plus.completeExceptionally(first);
4376	>	}
4377	>	} catch (Throwable unexpected) {
4378	>	plus.completeExceptionally(unexpected);
4379	>	}
4380	>	};
4381	>	f.whenComplete(action);
4382	>	g.whenComplete(action);
4383	>	return plus;
4384	>	}
4385	>	}
4386	>
4387	>	/**
4388	>	* CompletableFuture is an additive monad - sort of.
4389	>	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
4390	>	*/
4391	>	public void testAdditiveMonad() throws Throwable {
4392	>	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
4393	>	CompletableFuture<Long> zero = Monad.zero();
4394	>
4395	>	// Some mutually non-commutative functions
4396	>	Function<Long, CompletableFuture<Long>> triple
4397	>	= x -> Monad.unit(3 * x);
4398	>	Function<Long, CompletableFuture<Long>> inc
4399	>	= x -> Monad.unit(x + 1);
4400	>
4401	>	// unit is a right identity: m >>= unit === m
4402	>	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
4403	>	inc.apply(5L));
4404	>	// unit is a left identity: (unit x) >>= f === f x
4405	>	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
4406	>	inc.apply(5L));
4407	>
4408	>	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4409	>	Monad.assertFutureEquals(
4410	>	unit.apply(5L).thenCompose(inc).thenCompose(triple),
4411	>	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4412	>
4413	>	// The case for CompletableFuture as an additive monad is weaker...
4414	>
4415	>	// zero is a monadic zero
4416	>	Monad.assertZero(zero);
4417	>
4418	>	// left zero: zero >>= f === zero
4419	>	Monad.assertZero(zero.thenCompose(inc));
4420	>	// right zero: f >>= (\x -> zero) === zero
4421	>	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4422	>
4423	>	// f plus zero === f
4424	>	Monad.assertFutureEquals(Monad.unit(5L),
4425	>	Monad.plus(Monad.unit(5L), zero));
4426	>	// zero plus f === f
4427	>	Monad.assertFutureEquals(Monad.unit(5L),
4428	>	Monad.plus(zero, Monad.unit(5L)));
4429	>	// zero plus zero === zero
4430	>	Monad.assertZero(Monad.plus(zero, zero));
4431	>	{
4432	>	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
4433	>	Monad.unit(8L));
4434	>	// non-determinism
4435	>	assertTrue(f.get() == 5L || f.get() == 8L);
4436	>	}
4437	>
4438	>	CompletableFuture<Long> godot = new CompletableFuture<>();
4439	>	// f plus godot === f (doesn't wait for godot)
4440	>	Monad.assertFutureEquals(Monad.unit(5L),
4441	>	Monad.plus(Monad.unit(5L), godot));
4442	>	// godot plus f === f (doesn't wait for godot)
4443	>	Monad.assertFutureEquals(Monad.unit(5L),
4444	>	Monad.plus(godot, Monad.unit(5L)));
4445	>	}
4446	>
4447	>	/** Test long recursive chains of CompletableFutures with cascading completions */
4448	>	@SuppressWarnings("FutureReturnValueIgnored")
4449	>	public void testRecursiveChains() throws Throwable {
4450	>	for (ExecutionMode m : ExecutionMode.values())
4451	>	for (boolean addDeadEnds : new boolean[] { true, false })
4452	>	{
4453	>	final int val = 42;
4454	>	final int n = expensiveTests ? 1_000 : 2;
4455	>	CompletableFuture<Integer> head = new CompletableFuture<>();
4456	>	CompletableFuture<Integer> tail = head;
4457	>	for (int i = 0; i < n; i++) {
4458	>	if (addDeadEnds) m.thenApply(tail, v -> v + 1);
4459	>	tail = m.thenApply(tail, v -> v + 1);
4460	>	if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1);
4461	>	tail = m.applyToEither(tail, tail, v -> v + 1);
4462	>	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1);
4463	>	tail = m.thenCombine(tail, tail, (v, w) -> v + 1);
4464	>	}
4465	>	head.complete(val);
4466	>	assertEquals(val + 3 * n, (int) tail.join());
4467	>	}}
4468	>
4469	>	/**
4470	>	* A single CompletableFuture with many dependents.
4471	>	* A demo of scalability - runtime is O(n).
4472	>	*/
4473	>	@SuppressWarnings("FutureReturnValueIgnored")
4474	>	public void testManyDependents() throws Throwable {
4475	>	final int n = expensiveTests ? 1_000_000 : 10;
4476	>	final CompletableFuture<Void> head = new CompletableFuture<>();
4477	>	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4478	>	final AtomicInteger count = new AtomicInteger(0);
4479	>	for (int i = 0; i < n; i++) {
4480	>	head.thenRun(() -> count.getAndIncrement());
4481	>	head.thenAccept(x -> count.getAndIncrement());
4482	>	head.thenApply(x -> count.getAndIncrement());
4483	>
4484	>	head.runAfterBoth(complete, () -> count.getAndIncrement());
4485	>	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
4486	>	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
4487	>	complete.runAfterBoth(head, () -> count.getAndIncrement());
4488	>	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
4489	>	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4490	>
4491	>	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4492	>	head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4493	>	head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4494	>	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4495	>	new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement());
4496	>	new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement());
4497	>	}
4498	>	head.complete(null);
4499	>	assertEquals(5 * 3 * n, count.get());
4500	>	}
4501	>
4502	>	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4503	>	@SuppressWarnings("FutureReturnValueIgnored")
4504	>	public void testCoCompletionGarbageRetention() throws Throwable {
4505	>	final int n = expensiveTests ? 1_000_000 : 10;
4506	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4507	>	CompletableFuture<Integer> f;
4508	>	for (int i = 0; i < n; i++) {
4509	>	f = new CompletableFuture<>();
4510	>	f.runAfterEither(incomplete, () -> {});
4511	>	f.complete(null);
4512	>
4513	>	f = new CompletableFuture<>();
4514	>	f.acceptEither(incomplete, x -> {});
4515	>	f.complete(null);
4516	>
4517	>	f = new CompletableFuture<>();
4518	>	f.applyToEither(incomplete, x -> x);
4519	>	f.complete(null);
4520	>
4521	>	f = new CompletableFuture<>();
4522	>	CompletableFuture.anyOf(f, incomplete);
4523	>	f.complete(null);
4524	>	}
4525	>
4526	>	for (int i = 0; i < n; i++) {
4527	>	f = new CompletableFuture<>();
4528	>	incomplete.runAfterEither(f, () -> {});
4529	>	f.complete(null);
4530	>
4531	>	f = new CompletableFuture<>();
4532	>	incomplete.acceptEither(f, x -> {});
4533	>	f.complete(null);
4534	>
4535	>	f = new CompletableFuture<>();
4536	>	incomplete.applyToEither(f, x -> x);
4537	>	f.complete(null);
4538	>
4539	>	f = new CompletableFuture<>();
4540	>	CompletableFuture.anyOf(incomplete, f);
4541	>	f.complete(null);
4542	>	}
4543	>	}
4544	>
4545	>	/**
4546	>	* Reproduction recipe for:
4547	>	* 8160402: Garbage retention with CompletableFuture.anyOf
4548	>	* 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
4549	>	*/
4550	>	public void testAnyOfGarbageRetention() throws Throwable {
4551	>	for (Integer v : new Integer[] { 1, null })
4552	>	{
4553	>	final int n = expensiveTests ? 100_000 : 10;
4554	>	CompletableFuture<Integer>[] fs
4555	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4556	>	for (int i = 0; i < fs.length; i++)
4557	>	fs[i] = new CompletableFuture<>();
4558	>	fs[fs.length - 1].complete(v);
4559	>	for (int i = 0; i < n; i++)
4560	>	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4561	>	}}
4562	>
4563	>	/**
4564	>	* Checks for garbage retention with allOf.
4565	>	*
4566	>	* As of 2016-07, fails with OOME:
4567	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4568	>	*/
4569	>	public void testCancelledAllOfGarbageRetention() throws Throwable {
4570	>	final int n = expensiveTests ? 100_000 : 10;
4571	>	CompletableFuture<Integer>[] fs
4572	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4573	>	for (int i = 0; i < fs.length; i++)
4574	>	fs[i] = new CompletableFuture<>();
4575	>	for (int i = 0; i < n; i++)
4576	>	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4577	>	}
4578	>
4579	>	/**
4580	>	* Checks for garbage retention when a dependent future is
4581	>	* cancelled and garbage-collected.
4582	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4583	>	*
4584	>	* As of 2016-07, fails with OOME:
4585	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4586	>	*/
4587	>	public void testCancelledGarbageRetention() throws Throwable {
4588	>	final int n = expensiveTests ? 100_000 : 10;
4589	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4590	>	for (int i = 0; i < n; i++)
4591	>	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4592	>	}
4593	>
4594	>	/**
4595	>	* Checks for garbage retention when MinimalStage.toCompletableFuture()
4596	>	* is invoked many times.
4597	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4598	>	*
4599	>	* As of 2016-07, fails with OOME:
4600	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck
4601	>	*/
4602	>	public void testToCompletableFutureGarbageRetention() throws Throwable {
4603	>	final int n = expensiveTests ? 900_000 : 10;
4604	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4605	>	CompletionStage minimal = neverCompleted.minimalCompletionStage();
4606	>	for (int i = 0; i < n; i++)
4607	>	assertTrue(minimal.toCompletableFuture().cancel(true));
4608	>	}
4609	>
4610	>	//     static <U> U join(CompletionStage<U> stage) {
4611	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4612	>	//         stage.whenComplete((v, ex) -> {
4613	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4614	>	//         });
4615	>	//         return f.join();
4616	>	//     }
4617	>
4618	>	//     static <U> boolean isDone(CompletionStage<U> stage) {
4619	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4620	>	//         stage.whenComplete((v, ex) -> {
4621	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4622	>	//         });
4623	>	//         return f.isDone();
4624	>	//     }
4625	>
4626	>	//     static <U> U join2(CompletionStage<U> stage) {
4627	>	//         return stage.toCompletableFuture().copy().join();
4628	>	//     }
4629	>
4630	>	//     static <U> boolean isDone2(CompletionStage<U> stage) {
4631	>	//         return stage.toCompletableFuture().copy().isDone();
4632	>	//     }
4633	>
4634	>	// For testing default implementations
4635	>	// Only non-default interface methods defined.
4636	>	static final class DelegatedCompletionStage<T> implements CompletionStage<T> {
4637	>	final CompletableFuture<T> cf;
4638	>	DelegatedCompletionStage(CompletableFuture<T> cf) { this.cf = cf; }
4639	>	public CompletableFuture<T> toCompletableFuture() {
4640	>	return cf; }
4641	>	public CompletionStage<Void> thenRun
4642	>	(Runnable action) {
4643	>	return cf.thenRun(action); }
4644	>	public CompletionStage<Void> thenRunAsync
4645	>	(Runnable action) {
4646	>	return cf.thenRunAsync(action); }
4647	>	public CompletionStage<Void> thenRunAsync
4648	>	(Runnable action,
4649	>	Executor executor) {
4650	>	return cf.thenRunAsync(action, executor); }
4651	>	public CompletionStage<Void> thenAccept
4652	>	(Consumer<? super T> action) {
4653	>	return cf.thenAccept(action); }
4654	>	public CompletionStage<Void> thenAcceptAsync
4655	>	(Consumer<? super T> action) {
4656	>	return cf.thenAcceptAsync(action); }
4657	>	public CompletionStage<Void> thenAcceptAsync
4658	>	(Consumer<? super T> action,
4659	>	Executor executor) {
4660	>	return cf.thenAcceptAsync(action, executor); }
4661	>	public <U> CompletionStage<U> thenApply
4662	>	(Function<? super T,? extends U> a) {
4663	>	return cf.thenApply(a); }
4664	>	public <U> CompletionStage<U> thenApplyAsync
4665	>	(Function<? super T,? extends U> fn) {
4666	>	return cf.thenApplyAsync(fn); }
4667	>	public <U> CompletionStage<U> thenApplyAsync
4668	>	(Function<? super T,? extends U> fn,
4669	>	Executor executor) {
4670	>	return cf.thenApplyAsync(fn, executor); }
4671	>	public <U,V> CompletionStage<V> thenCombine
4672	>	(CompletionStage<? extends U> other,
4673	>	BiFunction<? super T,? super U,? extends V> fn) {
4674	>	return cf.thenCombine(other, fn); }
4675	>	public <U,V> CompletionStage<V> thenCombineAsync
4676	>	(CompletionStage<? extends U> other,
4677	>	BiFunction<? super T,? super U,? extends V> fn) {
4678	>	return cf.thenCombineAsync(other, fn); }
4679	>	public <U,V> CompletionStage<V> thenCombineAsync
4680	>	(CompletionStage<? extends U> other,
4681	>	BiFunction<? super T,? super U,? extends V> fn,
4682	>	Executor executor) {
4683	>	return cf.thenCombineAsync(other, fn, executor); }
4684	>	public <U> CompletionStage<Void> thenAcceptBoth
4685	>	(CompletionStage<? extends U> other,
4686	>	BiConsumer<? super T, ? super U> action) {
4687	>	return cf.thenAcceptBoth(other, action); }
4688	>	public <U> CompletionStage<Void> thenAcceptBothAsync
4689	>	(CompletionStage<? extends U> other,
4690	>	BiConsumer<? super T, ? super U> action) {
4691	>	return cf.thenAcceptBothAsync(other, action); }
4692	>	public <U> CompletionStage<Void> thenAcceptBothAsync
4693	>	(CompletionStage<? extends U> other,
4694	>	BiConsumer<? super T, ? super U> action,
4695	>	Executor executor) {
4696	>	return cf.thenAcceptBothAsync(other, action, executor); }
4697	>	public CompletionStage<Void> runAfterBoth
4698	>	(CompletionStage<?> other,
4699	>	Runnable action) {
4700	>	return cf.runAfterBoth(other, action); }
4701	>	public CompletionStage<Void> runAfterBothAsync
4702	>	(CompletionStage<?> other,
4703	>	Runnable action) {
4704	>	return cf.runAfterBothAsync(other, action); }
4705	>	public CompletionStage<Void> runAfterBothAsync
4706	>	(CompletionStage<?> other,
4707	>	Runnable action,
4708	>	Executor executor) {
4709	>	return cf.runAfterBothAsync(other, action, executor); }
4710	>	public <U> CompletionStage<U> applyToEither
4711	>	(CompletionStage<? extends T> other,
4712	>	Function<? super T, U> fn) {
4713	>	return cf.applyToEither(other, fn); }
4714	>	public <U> CompletionStage<U> applyToEitherAsync
4715	>	(CompletionStage<? extends T> other,
4716	>	Function<? super T, U> fn) {
4717	>	return cf.applyToEitherAsync(other, fn); }
4718	>	public <U> CompletionStage<U> applyToEitherAsync
4719	>	(CompletionStage<? extends T> other,
4720	>	Function<? super T, U> fn,
4721	>	Executor executor) {
4722	>	return cf.applyToEitherAsync(other, fn, executor); }
4723	>	public CompletionStage<Void> acceptEither
4724	>	(CompletionStage<? extends T> other,
4725	>	Consumer<? super T> action) {
4726	>	return cf.acceptEither(other, action); }
4727	>	public CompletionStage<Void> acceptEitherAsync
4728	>	(CompletionStage<? extends T> other,
4729	>	Consumer<? super T> action) {
4730	>	return cf.acceptEitherAsync(other, action); }
4731	>	public CompletionStage<Void> acceptEitherAsync
4732	>	(CompletionStage<? extends T> other,
4733	>	Consumer<? super T> action,
4734	>	Executor executor) {
4735	>	return cf.acceptEitherAsync(other, action, executor); }
4736	>	public CompletionStage<Void> runAfterEither
4737	>	(CompletionStage<?> other,
4738	>	Runnable action) {
4739	>	return cf.runAfterEither(other, action); }
4740	>	public CompletionStage<Void> runAfterEitherAsync
4741	>	(CompletionStage<?> other,
4742	>	Runnable action) {
4743	>	return cf.runAfterEitherAsync(other, action); }
4744	>	public CompletionStage<Void> runAfterEitherAsync
4745	>	(CompletionStage<?> other,
4746	>	Runnable action,
4747	>	Executor executor) {
4748	>	return cf.runAfterEitherAsync(other, action, executor); }
4749	>	public <U> CompletionStage<U> thenCompose
4750	>	(Function<? super T, ? extends CompletionStage<U>> fn) {
4751	>	return cf.thenCompose(fn); }
4752	>	public <U> CompletionStage<U> thenComposeAsync
4753	>	(Function<? super T, ? extends CompletionStage<U>> fn) {
4754	>	return cf.thenComposeAsync(fn); }
4755	>	public <U> CompletionStage<U> thenComposeAsync
4756	>	(Function<? super T, ? extends CompletionStage<U>> fn,
4757	>	Executor executor) {
4758	>	return cf.thenComposeAsync(fn, executor); }
4759	>	public <U> CompletionStage<U> handle
4760	>	(BiFunction<? super T, Throwable, ? extends U> fn) {
4761	>	return cf.handle(fn); }
4762	>	public <U> CompletionStage<U> handleAsync
4763	>	(BiFunction<? super T, Throwable, ? extends U> fn) {
4764	>	return cf.handleAsync(fn); }
4765	>	public <U> CompletionStage<U> handleAsync
4766	>	(BiFunction<? super T, Throwable, ? extends U> fn,
4767	>	Executor executor) {
4768	>	return cf.handleAsync(fn, executor); }
4769	>	public CompletionStage<T> whenComplete
4770	>	(BiConsumer<? super T, ? super Throwable> action) {
4771	>	return cf.whenComplete(action); }
4772	>	public CompletionStage<T> whenCompleteAsync
4773	>	(BiConsumer<? super T, ? super Throwable> action) {
4774	>	return cf.whenCompleteAsync(action); }
4775	>	public CompletionStage<T> whenCompleteAsync
4776	>	(BiConsumer<? super T, ? super Throwable> action,
4777	>	Executor executor) {
4778	>	return cf.whenCompleteAsync(action, executor); }
4779	>	public CompletionStage<T> exceptionally
4780	>	(Function<Throwable, ? extends T> fn) {
4781	>	return cf.exceptionally(fn); }
4782	>	}
4783	>
4784	>	/**
4785	>	* default-implemented exceptionallyAsync action completes with
4786	>	* function value on source exception
4787	>	*/
4788	>	public void testDefaulExceptionallyAsync_exceptionalCompletion() {
4789	>	for (boolean createIncomplete : new boolean[] { true, false })
4790	>	for (Integer v1 : new Integer[] { 1, null })
4791	>	{
4792	>	final AtomicInteger a = new AtomicInteger(0);
4793	>	final CFException ex = new CFException();
4794	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4795	>	final DelegatedCompletionStage<Integer> d =
4796	>	new DelegatedCompletionStage<Integer>(f);
4797	>	if (!createIncomplete) f.completeExceptionally(ex);
4798	>	final CompletionStage<Integer> g = d.exceptionallyAsync
4799	>	((Throwable t) -> {
4800	>	threadAssertSame(t, ex);
4801	>	a.getAndIncrement();
4802	>	return v1;
4803	>	});
4804	>	if (createIncomplete) f.completeExceptionally(ex);
4805	>
4806	>	checkCompletedNormally(g.toCompletableFuture(), v1);
4807	>	assertEquals(1, a.get());
4808	>	}}
4809	>
4810	>	/**
4811	>	* Under default implementation, if an "exceptionally action"
4812	>	* throws an exception, it completes exceptionally with that
4813	>	* exception
4814	>	*/
4815	>	public void testDefaulExceptionallyAsync_exceptionalCompletionActionFailed() {
4816	>	for (boolean createIncomplete : new boolean[] { true, false })
4817	>	{
4818	>	final AtomicInteger a = new AtomicInteger(0);
4819	>	final CFException ex1 = new CFException();
4820	>	final CFException ex2 = new CFException();
4821	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4822	>	final DelegatedCompletionStage<Integer> d =
4823	>	new DelegatedCompletionStage<Integer>(f);
4824	>	if (!createIncomplete) f.completeExceptionally(ex1);
4825	>	final CompletionStage<Integer> g = d.exceptionallyAsync
4826	>	((Throwable t) -> {
4827	>	threadAssertSame(t, ex1);
4828	>	a.getAndIncrement();
4829	>	throw ex2;
4830	>	});
4831	>	if (createIncomplete) f.completeExceptionally(ex1);
4832	>
4833	>	checkCompletedWithWrappedException(g.toCompletableFuture(), ex2);
4834	>	checkCompletedExceptionally(f, ex1);
4835	>	checkCompletedExceptionally(d.toCompletableFuture(), ex1);
4836	>	assertEquals(1, a.get());
4837	>	}}
4838	>
4839	>	/**
4840	>	* default exceptionallyCompose result completes normally after normal
4841	>	* completion of source
4842	>	*/
4843	>	public void testDefaultExceptionallyCompose_normalCompletion() {
4844	>	for (boolean createIncomplete : new boolean[] { true, false })
4845	>	for (Integer v1 : new Integer[] { 1, null })
4846	>	{
4847	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4848	>	final ExceptionalCompletableFutureFunction r =
4849	>	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4850	>	final DelegatedCompletionStage<Integer> d =
4851	>	new DelegatedCompletionStage<Integer>(f);
4852	>	if (!createIncomplete) assertTrue(f.complete(v1));
4853	>	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4854	>	if (createIncomplete) assertTrue(f.complete(v1));
4855	>
4856	>	checkCompletedNormally(f, v1);
4857	>	checkCompletedNormally(g.toCompletableFuture(), v1);
4858	>	r.assertNotInvoked();
4859	>	}}
4860	>
4861	>	/**
4862	>	* default-implemented exceptionallyCompose result completes
4863	>	* normally after exceptional completion of source
4864	>	*/
4865	>	public void testDefaultExceptionallyCompose_exceptionalCompletion() {
4866	>	for (boolean createIncomplete : new boolean[] { true, false })
4867	>	{
4868	>	final CFException ex = new CFException();
4869	>	final ExceptionalCompletableFutureFunction r =
4870	>	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4871	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4872	>	final DelegatedCompletionStage<Integer> d =
4873	>	new DelegatedCompletionStage<Integer>(f);
4874	>	if (!createIncomplete) f.completeExceptionally(ex);
4875	>	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4876	>	if (createIncomplete) f.completeExceptionally(ex);
4877	>
4878	>	checkCompletedExceptionally(f, ex);
4879	>	checkCompletedNormally(g.toCompletableFuture(), r.value);
4880	>	r.assertInvoked();
4881	>	}}
4882	>
4883	>	/**
4884	>	* default-implemented exceptionallyCompose completes
4885	>	* exceptionally on exception if action does
4886	>	*/
4887	>	public void testDefaultExceptionallyCompose_actionFailed() {
4888	>	for (boolean createIncomplete : new boolean[] { true, false })
4889	>	for (Integer v1 : new Integer[] { 1, null })
4890	>	{
4891	>	final CFException ex = new CFException();
4892	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4893	>	final FailingExceptionalCompletableFutureFunction r
4894	>	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4895	>	final DelegatedCompletionStage<Integer> d =
4896	>	new DelegatedCompletionStage<Integer>(f);
4897	>	if (!createIncomplete) f.completeExceptionally(ex);
4898	>	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4899	>	if (createIncomplete) f.completeExceptionally(ex);
4900	>
4901	>	checkCompletedExceptionally(f, ex);
4902	>	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4903	>	r.assertInvoked();
4904	>	}}
4905	>
4906	>	/**
4907	>	* default exceptionallyComposeAsync result completes normally after normal
4908	>	* completion of source
4909	>	*/
4910	>	public void testDefaultExceptionallyComposeAsync_normalCompletion() {
4911	>	for (boolean createIncomplete : new boolean[] { true, false })
4912	>	for (Integer v1 : new Integer[] { 1, null })
4913	>	{
4914	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4915	>	final ExceptionalCompletableFutureFunction r =
4916	>	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4917	>	final DelegatedCompletionStage<Integer> d =
4918	>	new DelegatedCompletionStage<Integer>(f);
4919	>	if (!createIncomplete) assertTrue(f.complete(v1));
4920	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4921	>	if (createIncomplete) assertTrue(f.complete(v1));
4922	>
4923	>	checkCompletedNormally(f, v1);
4924	>	checkCompletedNormally(g.toCompletableFuture(), v1);
4925	>	r.assertNotInvoked();
4926	>	}}
4927	>
4928	>	/**
4929	>	* default-implemented exceptionallyComposeAsync result completes
4930	>	* normally after exceptional completion of source
4931	>	*/
4932	>	public void testDefaultExceptionallyComposeAsync_exceptionalCompletion() {
4933	>	for (boolean createIncomplete : new boolean[] { true, false })
4934	>	{
4935	>	final CFException ex = new CFException();
4936	>	final ExceptionalCompletableFutureFunction r =
4937	>	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4938	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4939	>	final DelegatedCompletionStage<Integer> d =
4940	>	new DelegatedCompletionStage<Integer>(f);
4941	>	if (!createIncomplete) f.completeExceptionally(ex);
4942	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4943	>	if (createIncomplete) f.completeExceptionally(ex);
4944	>
4945	>	checkCompletedExceptionally(f, ex);
4946	>	checkCompletedNormally(g.toCompletableFuture(), r.value);
4947	>	r.assertInvoked();
4948	>	}}
4949	>
4950	>	/**
4951	>	* default-implemented exceptionallyComposeAsync completes
4952	>	* exceptionally on exception if action does
4953	>	*/
4954	>	public void testDefaultExceptionallyComposeAsync_actionFailed() {
4955	>	for (boolean createIncomplete : new boolean[] { true, false })
4956	>	for (Integer v1 : new Integer[] { 1, null })
4957	>	{
4958	>	final CFException ex = new CFException();
4959	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4960	>	final FailingExceptionalCompletableFutureFunction r
4961	>	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4962	>	final DelegatedCompletionStage<Integer> d =
4963	>	new DelegatedCompletionStage<Integer>(f);
4964	>	if (!createIncomplete) f.completeExceptionally(ex);
4965	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4966	>	if (createIncomplete) f.completeExceptionally(ex);
4967	>
4968	>	checkCompletedExceptionally(f, ex);
4969	>	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4970	>	r.assertInvoked();
4971	>	}}
4972	>
4973	>
4974	>	/**
4975	>	* default exceptionallyComposeAsync result completes normally after normal
4976	>	* completion of source
4977	>	*/
4978	>	public void testDefaultExceptionallyComposeAsyncExecutor_normalCompletion() {
4979	>	for (boolean createIncomplete : new boolean[] { true, false })
4980	>	for (Integer v1 : new Integer[] { 1, null })
4981	>	{
4982	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
4983	>	final ExceptionalCompletableFutureFunction r =
4984	>	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
4985	>	final DelegatedCompletionStage<Integer> d =
4986	>	new DelegatedCompletionStage<Integer>(f);
4987	>	if (!createIncomplete) assertTrue(f.complete(v1));
4988	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r,  new ThreadExecutor());
4989	>	if (createIncomplete) assertTrue(f.complete(v1));
4990	>
4991	>	checkCompletedNormally(f, v1);
4992	>	checkCompletedNormally(g.toCompletableFuture(), v1);
4993	>	r.assertNotInvoked();
4994	>	}}
4995	>
4996	>	/**
4997	>	* default-implemented exceptionallyComposeAsync result completes
4998	>	* normally after exceptional completion of source
4999	>	*/
5000	>	public void testDefaultExceptionallyComposeAsyncExecutor_exceptionalCompletion() {
5001	>	for (boolean createIncomplete : new boolean[] { true, false })
5002	>	{
5003	>	final CFException ex = new CFException();
5004	>	final ExceptionalCompletableFutureFunction r =
5005	>	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5006	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
5007	>	final DelegatedCompletionStage<Integer> d =
5008	>	new DelegatedCompletionStage<Integer>(f);
5009	>	if (!createIncomplete) f.completeExceptionally(ex);
5010	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r,  new ThreadExecutor());
5011	>	if (createIncomplete) f.completeExceptionally(ex);
5012	>
5013	>	checkCompletedExceptionally(f, ex);
5014	>	checkCompletedNormally(g.toCompletableFuture(), r.value);
5015	>	r.assertInvoked();
5016	>	}}
5017	>
5018	>	/**
5019	>	* default-implemented exceptionallyComposeAsync completes
5020	>	* exceptionally on exception if action does
5021	>	*/
5022	>	public void testDefaultExceptionallyComposeAsyncExecutor_actionFailed() {
5023	>	for (boolean createIncomplete : new boolean[] { true, false })
5024	>	for (Integer v1 : new Integer[] { 1, null })
5025	>	{
5026	>	final CFException ex = new CFException();
5027	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
5028	>	final FailingExceptionalCompletableFutureFunction r
5029	>	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5030	>	final DelegatedCompletionStage<Integer> d =
5031	>	new DelegatedCompletionStage<Integer>(f);
5032	>	if (!createIncomplete) f.completeExceptionally(ex);
5033	>	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r,  new ThreadExecutor());
5034	>	if (createIncomplete) f.completeExceptionally(ex);
5035	>
5036	>	checkCompletedExceptionally(f, ex);
5037	>	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5038	>	r.assertInvoked();
5039	>	}}
5040
5041		}

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