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

Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.135 by jsr166, Sun Nov 15 20:03:08 2015 UTC vs.
Revision 1.202 by jsr166, Sat Sep 22 22:23:08 2018 UTC

#	Line 30 | Line 30 | import java.util.concurrent.ExecutionExc
30		import java.util.concurrent.Executor;
31		import java.util.concurrent.ForkJoinPool;
32		import java.util.concurrent.ForkJoinTask;
33	+	import java.util.concurrent.RejectedExecutionException;
34		import java.util.concurrent.TimeoutException;
34	–	import java.util.concurrent.TimeUnit;
35		import java.util.concurrent.atomic.AtomicInteger;
36		import java.util.concurrent.atomic.AtomicReference;
37		import java.util.function.BiConsumer;
#	Line 41 | Line 41 | import java.util.function.Function;
41		import java.util.function.Predicate;
42		import java.util.function.Supplier;
43
44	–	import junit.framework.AssertionFailedError;
44		import junit.framework.Test;
45		import junit.framework.TestSuite;
46
#	Line 59 | Line 58 | public class CompletableFutureTest exten
58		void checkIncomplete(CompletableFuture<?> f) {
59		assertFalse(f.isDone());
60		assertFalse(f.isCancelled());
61	<	assertTrue(f.toString().contains("Not completed"));
61	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
62	>
63	>	Object result = null;
64		try {
65	<	assertNull(f.getNow(null));
65	>	result = f.getNow(null);
66		} catch (Throwable fail) { threadUnexpectedException(fail); }
67	+	assertNull(result);
68	+
69		try {
70	<	f.get(0L, SECONDS);
70	>	f.get(randomExpiredTimeout(), randomTimeUnit());
71		shouldThrow();
72		}
73		catch (TimeoutException success) {}
74		catch (Throwable fail) { threadUnexpectedException(fail); }
75		}
76
77	<	<T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
78	<	checkTimedGet(f, value);
77	>	<T> void checkCompletedNormally(CompletableFuture<T> f, T expectedValue) {
78	>	checkTimedGet(f, expectedValue);
79
80	+	assertEquals(expectedValue, f.join());
81	+	assertEquals(expectedValue, f.getNow(null));
82	+
83	+	T result = null;
84		try {
85	<	assertEquals(value, f.join());
79	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
80	<	try {
81	<	assertEquals(value, f.getNow(null));
82	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
83	<	try {
84	<	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		/**
96		* Returns the "raw" internal exceptional completion of f,
97		* without any additional wrapping with CompletionException.
98		*/
99	<	<U> Throwable exceptionalCompletion(CompletableFuture<U> f) {
100	<	// handle (and whenComplete) can distinguish between "direct"
101	<	// and "wrapped" exceptional completion
102	<	return f.handle((U u, Throwable t) -> t).join();
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		void checkCompletedExceptionally(CompletableFuture<?> f,
#	Line 142 | Line 145 | public class CompletableFutureTest exten
145		assertFalse(f.isCancelled());
146		assertTrue(f.isDone());
147		assertTrue(f.isCompletedExceptionally());
148	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
148	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
149		}
150
151		void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
152		checkCompletedExceptionally(f, true,
153	<	(t) -> assertTrue(t instanceof CFException));
153	>	t -> assertTrue(t instanceof CFException));
154		}
155
156		void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
157		checkCompletedExceptionally(f, true,
158	<	(t) -> assertTrue(t instanceof CancellationException));
158	>	t -> assertTrue(t instanceof CancellationException));
159		}
160
161		void checkCompletedWithTimeoutException(CompletableFuture<?> f) {
162		checkCompletedExceptionally(f, false,
163	<	(t) -> assertTrue(t instanceof TimeoutException));
163	>	t -> assertTrue(t instanceof TimeoutException));
164		}
165
166		void checkCompletedWithWrappedException(CompletableFuture<?> f,
167		Throwable ex) {
168	<	checkCompletedExceptionally(f, true, (t) -> assertSame(t, 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));
172	>	checkCompletedExceptionally(f, false, t -> assertSame(t, ex));
173		}
174
175		void checkCancelled(CompletableFuture<?> f) {
#	Line 197 | Line 200 | public class CompletableFutureTest exten
200		assertTrue(f.isDone());
201		assertTrue(f.isCompletedExceptionally());
202		assertTrue(f.isCancelled());
203	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
203	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
204		}
205
206		/**
#	Line 296 | 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 333 | 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 361 | 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 373 | 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 382 | 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 401 | 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 411 | 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 429 | 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 439 | 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 449 | Line 469 | public class CompletableFutureTest exten
469		}
470		}
471
472	<	class Noop extends CheckedAction implements Runnable {
472	>	static class Noop extends CheckedAction implements Runnable {
473		Noop(ExecutionMode m) { super(m); }
474		public void run() {
475		invoked();
476		}
477		}
478
479	<	class FailingSupplier extends CheckedAction
479	>	static class FailingSupplier extends CheckedAction
480		implements Supplier<Integer>
481		{
482	<	FailingSupplier(ExecutionMode m) { super(m); }
482	>	final CFException ex;
483	>	FailingSupplier(ExecutionMode m) { super(m); ex = new CFException(); }
484		public Integer get() {
485		invoked();
486	<	throw new CFException();
486	>	throw ex;
487		}
488		}
489
490	<	class FailingConsumer extends CheckedIntegerAction
490	>	static class FailingConsumer extends CheckedIntegerAction
491		implements Consumer<Integer>
492		{
493	<	FailingConsumer(ExecutionMode m) { super(m); }
493	>	final CFException ex;
494	>	FailingConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
495		public void accept(Integer x) {
496		invoked();
497		value = x;
498	<	throw new CFException();
498	>	throw ex;
499		}
500		}
501
502	<	class FailingBiConsumer extends CheckedIntegerAction
502	>	static class FailingBiConsumer extends CheckedIntegerAction
503		implements BiConsumer<Integer, Integer>
504		{
505	<	FailingBiConsumer(ExecutionMode m) { super(m); }
505	>	final CFException ex;
506	>	FailingBiConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
507		public void accept(Integer x, Integer y) {
508		invoked();
509		value = subtract(x, y);
510	<	throw new CFException();
510	>	throw ex;
511		}
512		}
513
514	<	class FailingFunction extends CheckedIntegerAction
514	>	static class FailingFunction extends CheckedIntegerAction
515		implements Function<Integer, Integer>
516		{
517	<	FailingFunction(ExecutionMode m) { super(m); }
517	>	final CFException ex;
518	>	FailingFunction(ExecutionMode m) { super(m); ex = new CFException(); }
519		public Integer apply(Integer x) {
520		invoked();
521		value = x;
522	<	throw new CFException();
522	>	throw ex;
523		}
524		}
525
526	<	class FailingBiFunction extends CheckedIntegerAction
526	>	static class FailingBiFunction extends CheckedIntegerAction
527		implements BiFunction<Integer, Integer, Integer>
528		{
529	<	FailingBiFunction(ExecutionMode m) { super(m); }
529	>	final CFException ex;
530	>	FailingBiFunction(ExecutionMode m) { super(m); ex = new CFException(); }
531		public Integer apply(Integer x, Integer y) {
532		invoked();
533		value = subtract(x, y);
534	<	throw new CFException();
534	>	throw ex;
535		}
536		}
537
538	<	class FailingRunnable extends CheckedAction implements Runnable {
539	<	FailingRunnable(ExecutionMode m) { super(m); }
538	>	static class FailingRunnable extends CheckedAction implements Runnable {
539	>	final CFException ex;
540	>	FailingRunnable(ExecutionMode m) { super(m); ex = new CFException(); }
541		public void run() {
542		invoked();
543	<	throw new CFException();
543	>	throw ex;
544		}
545		}
546
547	<	class CompletableFutureInc extends CheckedIntegerAction
547	>	static class CompletableFutureInc extends CheckedIntegerAction
548		implements Function<Integer, CompletableFuture<Integer>>
549		{
550		CompletableFutureInc(ExecutionMode m) { super(m); }
#	Line 531 | 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 636 | 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		},
640	–
706		ASYNC {
707		public void checkExecutionMode() {
708		assertEquals(defaultExecutorIsCommonPool,
#	Line 710 | 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 783 | 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 825 | 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 832 | 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) -> {
934	>	final CompletableFuture<Integer> g = m.exceptionally
935	>	(f, (Throwable t) -> {
936		a.getAndIncrement();
937		threadFail("should not be called");
938		return null;            // unreached
#	Line 856 | 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 863 | 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.SYNC.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 876 | 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 })
980		{
981		final AtomicInteger a = new AtomicInteger(0);
#	Line 884 | Line 983 | public class CompletableFutureTest exten
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.SYNC.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 894 | 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 1035 | 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 1213 | 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 1247 | 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 1369 | Line 1499 | public class CompletableFutureTest exten
1499		final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1500		final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1501
1502	<	checkCompletedWithWrappedCFException(h0);
1503	<	checkCompletedWithWrappedCFException(h1);
1504	<	checkCompletedWithWrappedCFException(h2);
1505	<	checkCompletedWithWrappedCFException(h3);
1506	<	checkCompletedWithWrappedCFException(h4);
1507	<	checkCompletedWithWrappedCFException(h5);
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 1473 | Line 1603 | public class CompletableFutureTest exten
1603		final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1604		final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1605
1606	<	checkCompletedWithWrappedCFException(h0);
1607	<	checkCompletedWithWrappedCFException(h1);
1608	<	checkCompletedWithWrappedCFException(h2);
1609	<	checkCompletedWithWrappedCFException(h3);
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 1575 | Line 1705 | public class CompletableFutureTest exten
1705		final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1706		final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1707
1708	<	checkCompletedWithWrappedCFException(h0);
1709	<	checkCompletedWithWrappedCFException(h1);
1710	<	checkCompletedWithWrappedCFException(h2);
1711	<	checkCompletedWithWrappedCFException(h3);
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 1740 | 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 1904 | 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 2068 | 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 2360 | 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 2372 | 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 2513 | 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 2619 | 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 2631 | 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 2650 | 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 2662 | 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 2768 | 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 2874 | 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 2944 | 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 3021 | Line 3156 | public class CompletableFutureTest exten
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 3053 | Line 3252 | public class CompletableFutureTest exten
3252		}
3253		}
3254
3255	<	public void testAllOf_backwards() throws Exception {
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];
#	Line 3184 | 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<>();
#	Line 3203 | 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 3243 | 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 3286 | Line 3486 | public class CompletableFutureTest exten
3486		() -> f.obtrudeException(null),
3487
3488		() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3489	<	() -> CompletableFuture.delayedExecutor(1L, null, new ThreadExecutor()),
3489	>	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3490		() -> CompletableFuture.delayedExecutor(1L, null),
3491
3492		() -> f.orTimeout(1L, null),
#	Line 3301 | 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 3333 | Line 3678 | public class CompletableFutureTest exten
3678		*/
3679		public void testCompletedStage() {
3680		AtomicInteger x = new AtomicInteger(0);
3681	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
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);
#	Line 3378 | Line 3723 | public class CompletableFutureTest exten
3723		* copy returns a CompletableFuture that is completed normally,
3724		* with the same value, when source is.
3725		*/
3726	<	public void testCopy() {
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	<	checkIncomplete(f);
3734	<	checkIncomplete(g);
3735	<	f.complete(1);
3736	<	checkCompletedNormally(f, 1);
3737	<	checkCompletedNormally(g, 1);
3738	<	}
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 testCopy2() {
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	<	checkIncomplete(f);
3754	<	checkIncomplete(g);
3755	<	CFException ex = new CFException();
3756	<	f.completeExceptionally(ex);
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		/**
#	Line 3411 | Line 3780 | public class CompletableFutureTest exten
3780		CompletableFuture<Integer> f = new CompletableFuture<>();
3781		CompletionStage<Integer> g = f.minimalCompletionStage();
3782		AtomicInteger x = new AtomicInteger(0);
3783	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
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);
#	Line 3428 | Line 3797 | public class CompletableFutureTest exten
3797		CompletableFuture<Integer> f = new CompletableFuture<>();
3798		CompletionStage<Integer> g = f.minimalCompletionStage();
3799		AtomicInteger x = new AtomicInteger(0);
3800	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
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();
#	Line 3446 | Line 3815 | public class CompletableFutureTest exten
3815		CFException ex = new CFException();
3816		CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3817		AtomicInteger x = new AtomicInteger(0);
3818	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
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);
#	Line 3470 | Line 3839 | public class CompletableFutureTest exten
3839		public void testCompleteAsync2() {
3840		CompletableFuture<Integer> f = new CompletableFuture<>();
3841		CFException ex = new CFException();
3842	<	f.completeAsync(() -> {if (true) throw ex; return 1;});
3842	>	f.completeAsync(() -> { throw ex; });
3843		try {
3844		f.join();
3845		shouldThrow();
#	Line 3500 | Line 3869 | public class CompletableFutureTest exten
3869		CompletableFuture<Integer> f = new CompletableFuture<>();
3870		CFException ex = new CFException();
3871		ThreadExecutor executor = new ThreadExecutor();
3872	<	f.completeAsync(() -> {if (true) throw ex; return 1;}, executor);
3872	>	f.completeAsync(() -> { throw ex; }, executor);
3873		try {
3874		f.join();
3875		shouldThrow();
#	Line 3516 | Line 3885 | public class CompletableFutureTest exten
3885		long timeoutMillis = timeoutMillis();
3886		CompletableFuture<Integer> f = new CompletableFuture<>();
3887		long startTime = System.nanoTime();
3888	<	f.orTimeout(timeoutMillis, MILLISECONDS);
3888	>	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3889		checkCompletedWithTimeoutException(f);
3890		assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3891		}
#	Line 3531 | Line 3900 | public class CompletableFutureTest exten
3900		CompletableFuture<Integer> g = new CompletableFuture<>();
3901		long startTime = System.nanoTime();
3902		f.complete(v1);
3903	<	f.orTimeout(LONG_DELAY_MS, MILLISECONDS);
3904	<	g.orTimeout(LONG_DELAY_MS, MILLISECONDS);
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);
#	Line 3547 | Line 3916 | public class CompletableFutureTest exten
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	<	f.completeOnTimeout(v, timeoutMillis, MILLISECONDS);
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
#	Line 3568 | Line 3940 | public class CompletableFutureTest exten
3940		CompletableFuture<Integer> g = new CompletableFuture<>();
3941		long startTime = System.nanoTime();
3942		f.complete(v1);
3943	<	f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS);
3944	<	g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS);
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);
#	Line 3620 | Line 3992 | public class CompletableFutureTest exten
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 3636 | Line 4021 | public class CompletableFutureTest exten
4021		final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
4022		final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4023
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		List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
4029		= new ArrayList<>();
4030
4031	<	funs.add((y) -> m.thenRun(y, new Noop(m)));
4032	<	funs.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
4033	<	funs.add((y) -> m.thenApply(y, new IncFunction(m)));
4034	<
4035	<	funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
4036	<	funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
4037	<	funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
4038	<
4039	<	funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
4040	<	funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4041	<	funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
4042	<
4043	<	funs.add((y) -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
4044	<
4045	<	funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
4046	<
4047	<	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
4048	<	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
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		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 = fun.apply(src);
4064		checkCompletedWithWrappedException(dep, ex);
#	Line 3672 | Line 4068 | public class CompletableFutureTest exten
4068		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4069		fun : funs) {
4070		CompletableFuture<Integer> f = new CompletableFuture<>();
4071	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4071	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4072		CompletableFuture<?> dep = fun.apply(src);
4073		f.completeExceptionally(ex);
4074		checkCompletedWithWrappedException(src, ex);
#	Line 3686 | Line 4082 | public class CompletableFutureTest exten
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 = fun.apply(src);
4088		checkCompletedWithWrappedCancellationException(dep);
#	Line 3697 | Line 4093 | public class CompletableFutureTest exten
4093		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4094		fun : funs) {
4095		CompletableFuture<Integer> f = new CompletableFuture<>();
4096	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4096	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4097		CompletableFuture<?> dep = fun.apply(src);
4098		f.cancel(mayInterruptIfRunning);
4099		checkCancelled(f);
#	Line 3708 | Line 4104 | public class CompletableFutureTest exten
4104		}}
4105
4106		/**
4107	<	* Minimal completion stages throw UOE for all non-CompletionStage methods
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());
4112	>	method -> method.getName() + Arrays.toString(method.getParameterTypes());
4113		Predicate<Method> isNotStatic =
4114	<	(method) -> (method.getModifiers() & Modifier.STATIC) == 0;
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()))
4117	>	.flatMap(klazz -> Stream.of(klazz.getMethods()))
4118		.filter(isNotStatic)
4119		.collect(Collectors.toList());
4120		// Methods from CompletableFuture permitted NOT to throw UOE
#	Line 3734 | Line 4130 | public class CompletableFutureTest exten
4130		.collect(Collectors.toSet());
4131		List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
4132		.filter(isNotStatic)
4133	<	.filter((method) -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4133	>	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4134		.collect(Collectors.toList());
4135
4136	<	CompletionStage<Integer> minimalStage =
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) {
#	Line 3754 | Line 4155 | public class CompletableFutureTest exten
4155		else if (parameterTypes[i] == long.class)
4156		args[i] = 0L;
4157		}
4158	<	try {
4159	<	method.invoke(minimalStage, args);
4160	<	bugs.add(method);
3760	<	}
3761	<	catch (java.lang.reflect.InvocationTargetException expected) {
3762	<	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4158	>	for (CompletionStage<Integer> stage : stages) {
4159	>	try {
4160	>	method.invoke(stage, args);
4161		bugs.add(method);
3764	–	// expected.getCause().printStackTrace();
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		}
3767	–	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4171		}
4172		if (!bugs.isEmpty())
4173	<	throw new Error("Methods did not throw UOE: " + bugs.toString());
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"); }
#	Line 3786 | Line 4314 | public class CompletableFutureTest exten
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);
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 AssertionFailedError("should throw");
4323	>	throw new AssertionError("should throw");
4324		} catch (CompletionException success) {
4325		assertTrue(success.getCause() instanceof ZeroException);
4326		}
#	Line 3821 | Line 4349 | public class CompletableFutureTest exten
4349		AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4350		}
4351
4352	<	// Monadic "plus"
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	<	if (ex == null) {
4358	<	if (plus.complete(result))
4359	<	if (plus.firstFailure.get() != null)
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 if (plus.firstFailure.compareAndSet(null, ex)) {
4368	<	if (plus.isDone())
4369	<	plus.firstFailure.set(null);
4370	<	}
4371	<	else {
4372	<	// first failure has precedence
4373	<	Throwable first = plus.firstFailure.getAndSet(null);
4374	<
4375	<	// may fail with "Self-suppression not permitted"
4376	<	try { first.addSuppressed(ex); }
4377	<	catch (Exception ignored) {}
4378	<
3846	<	plus.completeExceptionally(first);
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);
#	Line 3862 | Line 4394 | public class CompletableFutureTest exten
4394
4395		// Some mutually non-commutative functions
4396		Function<Long, CompletableFuture<Long>> triple
4397	<	= (x) -> Monad.unit(3 * x);
4397	>	= x -> Monad.unit(3 * x);
4398		Function<Long, CompletableFuture<Long>> inc
4399	<	= (x) -> Monad.unit(x + 1);
4399	>	= x -> Monad.unit(x + 1);
4400
4401		// unit is a right identity: m >>= unit === m
4402		Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
#	Line 3876 | Line 4408 | public class CompletableFutureTest exten
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)));
4411	>	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4412
4413		// The case for CompletableFuture as an additive monad is weaker...
4414
#	Line 3886 | Line 4418 | public class CompletableFutureTest exten
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));
4421	>	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4422
4423		// f plus zero === f
4424		Monad.assertFutureEquals(Monad.unit(5L),
#	Line 3912 | Line 4444 | public class CompletableFutureTest exten
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) -> {
#	Line 3936 | Line 4631 | public class CompletableFutureTest exten
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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