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

Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.163 by jsr166, Sun Jul 3 18:33:17 2016 UTC vs.
Revision 1.214 by jsr166, Mon Sep 24 18:09:30 2018 UTC

#	Line 32 | Line 32 | import java.util.concurrent.ForkJoinPool
32		import java.util.concurrent.ForkJoinTask;
33		import java.util.concurrent.RejectedExecutionException;
34		import java.util.concurrent.TimeoutException;
35	–	import java.util.concurrent.TimeUnit;
35		import java.util.concurrent.atomic.AtomicInteger;
36		import java.util.concurrent.atomic.AtomicReference;
37		import java.util.function.BiConsumer;
#	Line 42 | Line 41 | import java.util.function.Function;
41		import java.util.function.Predicate;
42		import java.util.function.Supplier;
43
45	–	import junit.framework.AssertionFailedError;
44		import junit.framework.Test;
45		import junit.framework.TestSuite;
46
#	Line 60 | 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());
80	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
81	<	try {
82	<	assertEquals(value, f.getNow(null));
83	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
84	<	try {
85	<	assertEquals(value, f.get());
85	>	result = f.get();
86		} catch (Throwable fail) { threadUnexpectedException(fail); }
87	+	assertEquals(expectedValue, result);
88	+
89		assertTrue(f.isDone());
90		assertFalse(f.isCancelled());
91		assertFalse(f.isCompletedExceptionally());
92	<	assertTrue(f.toString().contains("[Completed normally]"));
92	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
93		}
94
95		/**
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 143 | 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 198 | 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 297 | 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 334 | 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 362 | 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 374 | 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 383 | 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 402 | 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 412 | 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 430 | 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 440 | 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 450 | 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		final CFException ex;
#	Line 468 | Line 487 | public class CompletableFutureTest exten
487		}
488		}
489
490	<	class FailingConsumer extends CheckedIntegerAction
490	>	static class FailingConsumer extends CheckedIntegerAction
491		implements Consumer<Integer>
492		{
493		final CFException ex;
#	Line 480 | Line 499 | public class CompletableFutureTest exten
499		}
500		}
501
502	<	class FailingBiConsumer extends CheckedIntegerAction
502	>	static class FailingBiConsumer extends CheckedIntegerAction
503		implements BiConsumer<Integer, Integer>
504		{
505		final CFException ex;
#	Line 492 | Line 511 | public class CompletableFutureTest exten
511		}
512		}
513
514	<	class FailingFunction extends CheckedIntegerAction
514	>	static class FailingFunction extends CheckedIntegerAction
515		implements Function<Integer, Integer>
516		{
517		final CFException ex;
#	Line 504 | Line 523 | public class CompletableFutureTest exten
523		}
524		}
525
526	<	class FailingBiFunction extends CheckedIntegerAction
526	>	static class FailingBiFunction extends CheckedIntegerAction
527		implements BiFunction<Integer, Integer, Integer>
528		{
529		final CFException ex;
#	Line 516 | Line 535 | public class CompletableFutureTest exten
535		}
536		}
537
538	<	class FailingRunnable extends CheckedAction implements Runnable {
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() {
#	Line 525 | Line 544 | public class CompletableFutureTest exten
544		}
545		}
546
547	<	class CompletableFutureInc extends CheckedIntegerAction
547	>	static class CompletableFutureInc extends CheckedIntegerAction
548		implements Function<Integer, CompletableFuture<Integer>>
549		{
550		CompletableFutureInc(ExecutionMode m) { super(m); }
551		public CompletableFuture<Integer> apply(Integer x) {
552		invoked();
553		value = x;
554	<	CompletableFuture<Integer> f = new CompletableFuture<>();
536	<	assertTrue(f.complete(inc(x)));
537	<	return f;
554	>	return CompletableFuture.completedFuture(inc(x));
555		}
556		}
557
558	<	class FailingCompletableFutureFunction extends CheckedIntegerAction
558	>	static class FailingExceptionalCompletableFutureFunction extends CheckedAction
559	>	implements Function<Throwable, CompletableFuture<Integer>>
560	>	{
561	>	final CFException ex;
562	>	FailingExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
563	>	public CompletableFuture<Integer> apply(Throwable x) {
564	>	invoked();
565	>	throw ex;
566	>	}
567	>	}
568	>
569	>	static class ExceptionalCompletableFutureFunction extends CheckedAction
570	>	implements Function<Throwable, CompletionStage<Integer>> {
571	>	final Integer value = 3;
572	>	ExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); }
573	>	public CompletionStage<Integer> apply(Throwable x) {
574	>	invoked();
575	>	return CompletableFuture.completedFuture(value);
576	>	}
577	>	}
578	>
579	>	static class FailingCompletableFutureFunction extends CheckedIntegerAction
580		implements Function<Integer, CompletableFuture<Integer>>
581		{
582		final CFException ex;
#	Line 653 | Line 691 | public class CompletableFutureTest exten
691		Function<? super T,U> a) {
692		return f.applyToEither(g, a);
693		}
694	+	public <T> CompletableFuture<T> exceptionally
695	+	(CompletableFuture<T> f,
696	+	Function<Throwable, ? extends T> fn) {
697	+	return f.exceptionally(fn);
698	+	}
699	+	public <T> CompletableFuture<T> exceptionallyCompose
700	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
701	+	return f.exceptionallyCompose(fn);
702	+	}
703		},
657	–
704		ASYNC {
705		public void checkExecutionMode() {
706		assertEquals(defaultExecutorIsCommonPool,
#	Line 727 | Line 773 | public class CompletableFutureTest exten
773		Function<? super T,U> a) {
774		return f.applyToEitherAsync(g, a);
775		}
776	+	public <T> CompletableFuture<T> exceptionally
777	+	(CompletableFuture<T> f,
778	+	Function<Throwable, ? extends T> fn) {
779	+	return f.exceptionallyAsync(fn);
780	+	}
781	+
782	+	public <T> CompletableFuture<T> exceptionallyCompose
783	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
784	+	return f.exceptionallyComposeAsync(fn);
785	+	}
786	+
787		},
788
789		EXECUTOR {
#	Line 800 | Line 857 | public class CompletableFutureTest exten
857		Function<? super T,U> a) {
858		return f.applyToEitherAsync(g, a, new ThreadExecutor());
859		}
860	+	public <T> CompletableFuture<T> exceptionally
861	+	(CompletableFuture<T> f,
862	+	Function<Throwable, ? extends T> fn) {
863	+	return f.exceptionallyAsync(fn, new ThreadExecutor());
864	+	}
865	+	public <T> CompletableFuture<T> exceptionallyCompose
866	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
867	+	return f.exceptionallyComposeAsync(fn, new ThreadExecutor());
868	+	}
869	+
870		};
871
872		public abstract void checkExecutionMode();
#	Line 842 | Line 909 | public class CompletableFutureTest exten
909		(CompletableFuture<T> f,
910		CompletionStage<? extends T> g,
911		Function<? super T,U> a);
912	+	public abstract <T> CompletableFuture<T> exceptionally
913	+	(CompletableFuture<T> f,
914	+	Function<Throwable, ? extends T> fn);
915	+	public abstract <T> CompletableFuture<T> exceptionallyCompose
916	+	(CompletableFuture<T> f,
917	+	Function<Throwable, ? extends CompletionStage<T>> fn);
918		}
919
920		/**
#	Line 849 | Line 922 | public class CompletableFutureTest exten
922		* normally, and source result is propagated
923		*/
924		public void testExceptionally_normalCompletion() {
925	+	for (ExecutionMode m : ExecutionMode.values())
926		for (boolean createIncomplete : new boolean[] { true, false })
927		for (Integer v1 : new Integer[] { 1, null })
928		{
855	–	final AtomicInteger a = new AtomicInteger(0);
929		final CompletableFuture<Integer> f = new CompletableFuture<>();
930		if (!createIncomplete) assertTrue(f.complete(v1));
931	<	final CompletableFuture<Integer> g = f.exceptionally
932	<	((Throwable t) -> {
860	<	a.getAndIncrement();
931	>	final CompletableFuture<Integer> g = m.exceptionally
932	>	(f, (Throwable t) -> {
933		threadFail("should not be called");
934		return null;            // unreached
935		});
#	Line 865 | Line 937 | public class CompletableFutureTest exten
937
938		checkCompletedNormally(g, v1);
939		checkCompletedNormally(f, v1);
868	–	assertEquals(0, a.get());
940		}}
941
942		/**
#	Line 873 | Line 944 | public class CompletableFutureTest exten
944		* exception
945		*/
946		public void testExceptionally_exceptionalCompletion() {
947	+	for (ExecutionMode m : ExecutionMode.values())
948		for (boolean createIncomplete : new boolean[] { true, false })
949		for (Integer v1 : new Integer[] { 1, null })
950		{
#	Line 880 | Line 952 | public class CompletableFutureTest exten
952		final CFException ex = new CFException();
953		final CompletableFuture<Integer> f = new CompletableFuture<>();
954		if (!createIncomplete) f.completeExceptionally(ex);
955	<	final CompletableFuture<Integer> g = f.exceptionally
956	<	((Throwable t) -> {
957	<	ExecutionMode.SYNC.checkExecutionMode();
955	>	final CompletableFuture<Integer> g = m.exceptionally
956	>	(f, (Throwable t) -> {
957	>	m.checkExecutionMode();
958		threadAssertSame(t, ex);
959		a.getAndIncrement();
960		return v1;
#	Line 898 | Line 970 | public class CompletableFutureTest exten
970		* exceptionally with that exception
971		*/
972		public void testExceptionally_exceptionalCompletionActionFailed() {
973	+	for (ExecutionMode m : ExecutionMode.values())
974		for (boolean createIncomplete : new boolean[] { true, false })
975		{
976		final AtomicInteger a = new AtomicInteger(0);
#	Line 905 | Line 978 | public class CompletableFutureTest exten
978		final CFException ex2 = new CFException();
979		final CompletableFuture<Integer> f = new CompletableFuture<>();
980		if (!createIncomplete) f.completeExceptionally(ex1);
981	<	final CompletableFuture<Integer> g = f.exceptionally
982	<	((Throwable t) -> {
983	<	ExecutionMode.SYNC.checkExecutionMode();
981	>	final CompletableFuture<Integer> g = m.exceptionally
982	>	(f, (Throwable t) -> {
983	>	m.checkExecutionMode();
984		threadAssertSame(t, ex1);
985		a.getAndIncrement();
986		throw ex2;
#	Line 1243 | Line 1316 | public class CompletableFutureTest exten
1316		r.assertInvoked();
1317		}}
1318
1319	+	@SuppressWarnings("FutureReturnValueIgnored")
1320		public void testRunAsync_rejectingExecutor() {
1321		CountingRejectingExecutor e = new CountingRejectingExecutor();
1322		try {
#	Line 1289 | Line 1363 | public class CompletableFutureTest exten
1363		r.assertInvoked();
1364		}}
1365
1366	+	@SuppressWarnings("FutureReturnValueIgnored")
1367		public void testSupplyAsync_rejectingExecutor() {
1368		CountingRejectingExecutor e = new CountingRejectingExecutor();
1369		try {
#	Line 2563 | Line 2638 | public class CompletableFutureTest exten
2638
2639		// unspecified behavior - both source completions available
2640		try {
2641	<	assertEquals(null, h0.join());
2641	>	assertNull(h0.join());
2642		rs[0].assertValue(v1);
2643		} catch (CompletionException ok) {
2644		checkCompletedWithWrappedException(h0, ex);
2645		rs[0].assertNotInvoked();
2646		}
2647		try {
2648	<	assertEquals(null, h1.join());
2648	>	assertNull(h1.join());
2649		rs[1].assertValue(v1);
2650		} catch (CompletionException ok) {
2651		checkCompletedWithWrappedException(h1, ex);
2652		rs[1].assertNotInvoked();
2653		}
2654		try {
2655	<	assertEquals(null, h2.join());
2655	>	assertNull(h2.join());
2656		rs[2].assertValue(v1);
2657		} catch (CompletionException ok) {
2658		checkCompletedWithWrappedException(h2, ex);
2659		rs[2].assertNotInvoked();
2660		}
2661		try {
2662	<	assertEquals(null, h3.join());
2662	>	assertNull(h3.join());
2663		rs[3].assertValue(v1);
2664		} catch (CompletionException ok) {
2665		checkCompletedWithWrappedException(h3, ex);
#	Line 2823 | Line 2898 | public class CompletableFutureTest exten
2898
2899		// unspecified behavior - both source completions available
2900		try {
2901	<	assertEquals(null, h0.join());
2901	>	assertNull(h0.join());
2902		rs[0].assertInvoked();
2903		} catch (CompletionException ok) {
2904		checkCompletedWithWrappedException(h0, ex);
2905		rs[0].assertNotInvoked();
2906		}
2907		try {
2908	<	assertEquals(null, h1.join());
2908	>	assertNull(h1.join());
2909		rs[1].assertInvoked();
2910		} catch (CompletionException ok) {
2911		checkCompletedWithWrappedException(h1, ex);
2912		rs[1].assertNotInvoked();
2913		}
2914		try {
2915	<	assertEquals(null, h2.join());
2915	>	assertNull(h2.join());
2916		rs[2].assertInvoked();
2917		} catch (CompletionException ok) {
2918		checkCompletedWithWrappedException(h2, ex);
2919		rs[2].assertNotInvoked();
2920		}
2921		try {
2922	<	assertEquals(null, h3.join());
2922	>	assertNull(h3.join());
2923		rs[3].assertInvoked();
2924		} catch (CompletionException ok) {
2925		checkCompletedWithWrappedException(h3, ex);
#	Line 3076 | Line 3151 | public class CompletableFutureTest exten
3151		checkCompletedNormally(f, v1);
3152		}}
3153
3154	+	/**
3155	+	* exceptionallyCompose result completes normally after normal
3156	+	* completion of source
3157	+	*/
3158	+	public void testExceptionallyCompose_normalCompletion() {
3159	+	for (ExecutionMode m : ExecutionMode.values())
3160	+	for (boolean createIncomplete : new boolean[] { true, false })
3161	+	for (Integer v1 : new Integer[] { 1, null })
3162	+	{
3163	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3164	+	final ExceptionalCompletableFutureFunction r =
3165	+	new ExceptionalCompletableFutureFunction(m);
3166	+	if (!createIncomplete) assertTrue(f.complete(v1));
3167	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3168	+	if (createIncomplete) assertTrue(f.complete(v1));
3169	+
3170	+	checkCompletedNormally(f, v1);
3171	+	checkCompletedNormally(g, v1);
3172	+	r.assertNotInvoked();
3173	+	}}
3174	+
3175	+	/**
3176	+	* exceptionallyCompose result completes normally after exceptional
3177	+	* completion of source
3178	+	*/
3179	+	public void testExceptionallyCompose_exceptionalCompletion() {
3180	+	for (ExecutionMode m : ExecutionMode.values())
3181	+	for (boolean createIncomplete : new boolean[] { true, false })
3182	+	{
3183	+	final CFException ex = new CFException();
3184	+	final ExceptionalCompletableFutureFunction r =
3185	+	new ExceptionalCompletableFutureFunction(m);
3186	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3187	+	if (!createIncomplete) f.completeExceptionally(ex);
3188	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3189	+	if (createIncomplete) f.completeExceptionally(ex);
3190	+
3191	+	checkCompletedExceptionally(f, ex);
3192	+	checkCompletedNormally(g, r.value);
3193	+	r.assertInvoked();
3194	+	}}
3195	+
3196	+	/**
3197	+	* exceptionallyCompose completes exceptionally on exception if action does
3198	+	*/
3199	+	public void testExceptionallyCompose_actionFailed() {
3200	+	for (ExecutionMode m : ExecutionMode.values())
3201	+	for (boolean createIncomplete : new boolean[] { true, false })
3202	+	{
3203	+	final CFException ex = new CFException();
3204	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3205	+	final FailingExceptionalCompletableFutureFunction r
3206	+	= new FailingExceptionalCompletableFutureFunction(m);
3207	+	if (!createIncomplete) f.completeExceptionally(ex);
3208	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3209	+	if (createIncomplete) f.completeExceptionally(ex);
3210	+
3211	+	checkCompletedExceptionally(f, ex);
3212	+	checkCompletedWithWrappedException(g, r.ex);
3213	+	r.assertInvoked();
3214	+	}}
3215	+
3216	+	/**
3217	+	* exceptionallyCompose result completes exceptionally if the
3218	+	* result of the action does
3219	+	*/
3220	+	public void testExceptionallyCompose_actionReturnsFailingFuture() {
3221	+	for (ExecutionMode m : ExecutionMode.values())
3222	+	for (int order = 0; order < 6; order++)
3223	+	{
3224	+	final CFException ex0 = new CFException();
3225	+	final CFException ex = new CFException();
3226	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3227	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
3228	+	final CompletableFuture<Integer> h;
3229	+	// Test all permutations of orders
3230	+	switch (order) {
3231	+	case 0:
3232	+	assertTrue(f.completeExceptionally(ex0));
3233	+	assertTrue(g.completeExceptionally(ex));
3234	+	h = m.exceptionallyCompose(f, (x -> g));
3235	+	break;
3236	+	case 1:
3237	+	assertTrue(f.completeExceptionally(ex0));
3238	+	h = m.exceptionallyCompose(f, (x -> g));
3239	+	assertTrue(g.completeExceptionally(ex));
3240	+	break;
3241	+	case 2:
3242	+	assertTrue(g.completeExceptionally(ex));
3243	+	assertTrue(f.completeExceptionally(ex0));
3244	+	h = m.exceptionallyCompose(f, (x -> g));
3245	+	break;
3246	+	case 3:
3247	+	assertTrue(g.completeExceptionally(ex));
3248	+	h = m.exceptionallyCompose(f, (x -> g));
3249	+	assertTrue(f.completeExceptionally(ex0));
3250	+	break;
3251	+	case 4:
3252	+	h = m.exceptionallyCompose(f, (x -> g));
3253	+	assertTrue(f.completeExceptionally(ex0));
3254	+	assertTrue(g.completeExceptionally(ex));
3255	+	break;
3256	+	case 5:
3257	+	h = m.exceptionallyCompose(f, (x -> g));
3258	+	assertTrue(f.completeExceptionally(ex0));
3259	+	assertTrue(g.completeExceptionally(ex));
3260	+	break;
3261	+	default: throw new AssertionError();
3262	+	}
3263	+
3264	+	checkCompletedExceptionally(g, ex);
3265	+	checkCompletedWithWrappedException(h, ex);
3266	+	checkCompletedExceptionally(f, ex0);
3267	+	}}
3268	+
3269		// other static methods
3270
3271		/**
#	Line 3239 | Line 3429 | public class CompletableFutureTest exten
3429		/**
3430		* Completion methods throw NullPointerException with null arguments
3431		*/
3432	+	@SuppressWarnings("FutureReturnValueIgnored")
3433		public void testNPE() {
3434		CompletableFuture<Integer> f = new CompletableFuture<>();
3435		CompletableFuture<Integer> g = new CompletableFuture<>();
#	Line 3258 | Line 3449 | public class CompletableFutureTest exten
3449
3450		() -> f.thenApply(null),
3451		() -> f.thenApplyAsync(null),
3452	<	() -> f.thenApplyAsync((x) -> x, null),
3452	>	() -> f.thenApplyAsync(x -> x, null),
3453		() -> f.thenApplyAsync(null, exec),
3454
3455		() -> f.thenAccept(null),
3456		() -> f.thenAcceptAsync(null),
3457	<	() -> f.thenAcceptAsync((x) -> {} , null),
3457	>	() -> f.thenAcceptAsync(x -> {} , null),
3458		() -> f.thenAcceptAsync(null, exec),
3459
3460		() -> f.thenRun(null),
#	Line 3298 | Line 3489 | public class CompletableFutureTest exten
3489		() -> f.applyToEither(g, null),
3490		() -> f.applyToEitherAsync(g, null),
3491		() -> f.applyToEitherAsync(g, null, exec),
3492	<	() -> f.applyToEither(nullFuture, (x) -> x),
3493	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x),
3494	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
3495	<	() -> f.applyToEitherAsync(g, (x) -> x, null),
3492	>	() -> f.applyToEither(nullFuture, x -> x),
3493	>	() -> f.applyToEitherAsync(nullFuture, x -> x),
3494	>	() -> f.applyToEitherAsync(nullFuture, x -> x, exec),
3495	>	() -> f.applyToEitherAsync(g, x -> x, null),
3496
3497		() -> f.acceptEither(g, null),
3498		() -> f.acceptEitherAsync(g, null),
3499		() -> f.acceptEitherAsync(g, null, exec),
3500	<	() -> f.acceptEither(nullFuture, (x) -> {}),
3501	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}),
3502	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
3503	<	() -> f.acceptEitherAsync(g, (x) -> {}, null),
3500	>	() -> f.acceptEither(nullFuture, x -> {}),
3501	>	() -> f.acceptEitherAsync(nullFuture, x -> {}),
3502	>	() -> f.acceptEitherAsync(nullFuture, x -> {}, exec),
3503	>	() -> f.acceptEitherAsync(g, x -> {}, null),
3504
3505		() -> f.runAfterEither(g, null),
3506		() -> f.runAfterEitherAsync(g, null),
#	Line 3375 | Line 3566 | public class CompletableFutureTest exten
3566		for (CompletableFuture<Integer> src : srcs) {
3567		List<CompletableFuture<?>> fs = new ArrayList<>();
3568		fs.add(src.thenRunAsync(() -> {}, e));
3569	<	fs.add(src.thenAcceptAsync((z) -> {}, e));
3570	<	fs.add(src.thenApplyAsync((z) -> z, e));
3569	>	fs.add(src.thenAcceptAsync(z -> {}, e));
3570	>	fs.add(src.thenApplyAsync(z -> z, e));
3571
3572		fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3573		fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3574		fs.add(src.runAfterBothAsync(src, () -> {}, e));
3575
3576	<	fs.add(src.applyToEitherAsync(src, (z) -> z, e));
3577	<	fs.add(src.acceptEitherAsync(src, (z) -> {}, e));
3576	>	fs.add(src.applyToEitherAsync(src, z -> z, e));
3577	>	fs.add(src.acceptEitherAsync(src, z -> {}, e));
3578		fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3579
3580	<	fs.add(src.thenComposeAsync((z) -> null, e));
3580	>	fs.add(src.thenComposeAsync(z -> null, e));
3581		fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3582		fs.add(src.handleAsync((z, t) -> null, e));
3583
#	Line 3419 | Line 3610 | public class CompletableFutureTest exten
3610		{
3611		List<CompletableFuture<?>> fs = new ArrayList<>();
3612
3613	<	fs.add(complete.applyToEitherAsync(incomplete, (z) -> z, e));
3614	<	fs.add(incomplete.applyToEitherAsync(complete, (z) -> z, e));
3613	>	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3614	>	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3615
3616	<	fs.add(complete.acceptEitherAsync(incomplete, (z) -> {}, e));
3617	<	fs.add(incomplete.acceptEitherAsync(complete, (z) -> {}, e));
3616	>	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3617	>	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3618
3619		fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3620		fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
#	Line 3462 | Line 3653 | public class CompletableFutureTest exten
3653
3654		List<CompletableFuture<?>> fs = new ArrayList<>();
3655		fs.add(incomplete.thenRunAsync(() -> {}, e));
3656	<	fs.add(incomplete.thenAcceptAsync((z) -> {}, e));
3657	<	fs.add(incomplete.thenApplyAsync((z) -> z, e));
3656	>	fs.add(incomplete.thenAcceptAsync(z -> {}, e));
3657	>	fs.add(incomplete.thenApplyAsync(z -> z, e));
3658
3659		fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3660		fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3661		fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3662
3663	<	fs.add(incomplete.applyToEitherAsync(incomplete, (z) -> z, e));
3664	<	fs.add(incomplete.acceptEitherAsync(incomplete, (z) -> {}, e));
3663	>	fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e));
3664	>	fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e));
3665		fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3666
3667	<	fs.add(incomplete.thenComposeAsync((z) -> null, e));
3667	>	fs.add(incomplete.thenComposeAsync(z -> null, e));
3668		fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3669		fs.add(incomplete.handleAsync((z, t) -> null, e));
3670
#	Line 3533 | Line 3724 | public class CompletableFutureTest exten
3724		*/
3725		public void testCompletedStage() {
3726		AtomicInteger x = new AtomicInteger(0);
3727	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3727	>	AtomicReference<Throwable> r = new AtomicReference<>();
3728		CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3729		f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3730		assertEquals(x.get(), 1);
#	Line 3578 | Line 3769 | public class CompletableFutureTest exten
3769		* copy returns a CompletableFuture that is completed normally,
3770		* with the same value, when source is.
3771		*/
3772	<	public void testCopy() {
3772	>	public void testCopy_normalCompletion() {
3773	>	for (boolean createIncomplete : new boolean[] { true, false })
3774	>	for (Integer v1 : new Integer[] { 1, null })
3775	>	{
3776		CompletableFuture<Integer> f = new CompletableFuture<>();
3777	+	if (!createIncomplete) assertTrue(f.complete(v1));
3778		CompletableFuture<Integer> g = f.copy();
3779	<	checkIncomplete(f);
3780	<	checkIncomplete(g);
3781	<	f.complete(1);
3782	<	checkCompletedNormally(f, 1);
3783	<	checkCompletedNormally(g, 1);
3784	<	}
3779	>	if (createIncomplete) {
3780	>	checkIncomplete(f);
3781	>	checkIncomplete(g);
3782	>	assertTrue(f.complete(v1));
3783	>	}
3784	>	checkCompletedNormally(f, v1);
3785	>	checkCompletedNormally(g, v1);
3786	>	}}
3787
3788		/**
3789		* copy returns a CompletableFuture that is completed exceptionally
3790		* when source is.
3791		*/
3792	<	public void testCopy2() {
3792	>	public void testCopy_exceptionalCompletion() {
3793	>	for (boolean createIncomplete : new boolean[] { true, false })
3794	>	{
3795	>	CFException ex = new CFException();
3796		CompletableFuture<Integer> f = new CompletableFuture<>();
3797	+	if (!createIncomplete) f.completeExceptionally(ex);
3798		CompletableFuture<Integer> g = f.copy();
3799	<	checkIncomplete(f);
3800	<	checkIncomplete(g);
3801	<	CFException ex = new CFException();
3802	<	f.completeExceptionally(ex);
3799	>	if (createIncomplete) {
3800	>	checkIncomplete(f);
3801	>	checkIncomplete(g);
3802	>	f.completeExceptionally(ex);
3803	>	}
3804		checkCompletedExceptionally(f, ex);
3805		checkCompletedWithWrappedException(g, ex);
3806	+	}}
3807	+
3808	+	/**
3809	+	* Completion of a copy does not complete its source.
3810	+	*/
3811	+	public void testCopy_oneWayPropagation() {
3812	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3813	+	assertTrue(f.copy().complete(1));
3814	+	assertTrue(f.copy().complete(null));
3815	+	assertTrue(f.copy().cancel(true));
3816	+	assertTrue(f.copy().cancel(false));
3817	+	assertTrue(f.copy().completeExceptionally(new CFException()));
3818	+	checkIncomplete(f);
3819		}
3820
3821		/**
#	Line 3611 | Line 3826 | public class CompletableFutureTest exten
3826		CompletableFuture<Integer> f = new CompletableFuture<>();
3827		CompletionStage<Integer> g = f.minimalCompletionStage();
3828		AtomicInteger x = new AtomicInteger(0);
3829	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3829	>	AtomicReference<Throwable> r = new AtomicReference<>();
3830		checkIncomplete(f);
3831		g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3832		f.complete(1);
#	Line 3628 | Line 3843 | public class CompletableFutureTest exten
3843		CompletableFuture<Integer> f = new CompletableFuture<>();
3844		CompletionStage<Integer> g = f.minimalCompletionStage();
3845		AtomicInteger x = new AtomicInteger(0);
3846	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3846	>	AtomicReference<Throwable> r = new AtomicReference<>();
3847		g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3848		checkIncomplete(f);
3849		CFException ex = new CFException();
#	Line 3646 | Line 3861 | public class CompletableFutureTest exten
3861		CFException ex = new CFException();
3862		CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3863		AtomicInteger x = new AtomicInteger(0);
3864	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3864	>	AtomicReference<Throwable> r = new AtomicReference<>();
3865		f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3866		assertEquals(x.get(), 0);
3867		assertEquals(r.get(), ex);
#	Line 3670 | Line 3885 | public class CompletableFutureTest exten
3885		public void testCompleteAsync2() {
3886		CompletableFuture<Integer> f = new CompletableFuture<>();
3887		CFException ex = new CFException();
3888	<	f.completeAsync(() -> {if (true) throw ex; return 1;});
3888	>	f.completeAsync(() -> { throw ex; });
3889		try {
3890		f.join();
3891		shouldThrow();
#	Line 3700 | Line 3915 | public class CompletableFutureTest exten
3915		CompletableFuture<Integer> f = new CompletableFuture<>();
3916		CFException ex = new CFException();
3917		ThreadExecutor executor = new ThreadExecutor();
3918	<	f.completeAsync(() -> {if (true) throw ex; return 1;}, executor);
3918	>	f.completeAsync(() -> { throw ex; }, executor);
3919		try {
3920		f.join();
3921		shouldThrow();
#	Line 3852 | Line 4067 | public class CompletableFutureTest exten
4067		final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
4068		final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4069
4070	+	final Runnable noopRunnable = new Noop(m);
4071	+	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
4072	+	final Function<Integer, Integer> incFunction = new IncFunction(m);
4073	+
4074		List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
4075		= new ArrayList<>();
4076
4077	<	funs.add((y) -> m.thenRun(y, new Noop(m)));
4078	<	funs.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
4079	<	funs.add((y) -> m.thenApply(y, new IncFunction(m)));
4080	<
4081	<	funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
4082	<	funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
4083	<	funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
4084	<
4085	<	funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
4086	<	funs.add((y) -> m.runAfterBoth(v42, y, new Noop(m)));
4087	<	funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4088	<	funs.add((y) -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
4089	<	funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
4090	<	funs.add((y) -> m.thenCombine(v42, y, new SubtractFunction(m)));
4091	<
4092	<	funs.add((y) -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
4093	<
4094	<	funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
4095	<
4096	<	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y}));
4097	<	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
4098	<	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {v42, y}));
4099	<	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y}));
4100	<	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
4101	<	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {incomplete, y}));
4077	>	funs.add(y -> m.thenRun(y, noopRunnable));
4078	>	funs.add(y -> m.thenAccept(y, noopConsumer));
4079	>	funs.add(y -> m.thenApply(y, incFunction));
4080	>
4081	>	funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable));
4082	>	funs.add(y -> m.acceptEither(y, incomplete, noopConsumer));
4083	>	funs.add(y -> m.applyToEither(y, incomplete, incFunction));
4084	>
4085	>	funs.add(y -> m.runAfterBoth(y, v42, noopRunnable));
4086	>	funs.add(y -> m.runAfterBoth(v42, y, noopRunnable));
4087	>	funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4088	>	funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
4089	>	funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m)));
4090	>	funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m)));
4091	>
4092	>	funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
4093	>
4094	>	funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m)));
4095	>
4096	>	funs.add(y -> CompletableFuture.allOf(y));
4097	>	funs.add(y -> CompletableFuture.allOf(y, v42));
4098	>	funs.add(y -> CompletableFuture.allOf(v42, y));
4099	>	funs.add(y -> CompletableFuture.anyOf(y));
4100	>	funs.add(y -> CompletableFuture.anyOf(y, incomplete));
4101	>	funs.add(y -> CompletableFuture.anyOf(incomplete, y));
4102
4103		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4104		fun : funs) {
4105		CompletableFuture<Integer> f = new CompletableFuture<>();
4106		f.completeExceptionally(ex);
4107	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4107	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4108		checkCompletedWithWrappedException(src, ex);
4109		CompletableFuture<?> dep = fun.apply(src);
4110		checkCompletedWithWrappedException(dep, ex);
#	Line 3895 | Line 4114 | public class CompletableFutureTest exten
4114		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4115		fun : funs) {
4116		CompletableFuture<Integer> f = new CompletableFuture<>();
4117	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4117	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4118		CompletableFuture<?> dep = fun.apply(src);
4119		f.completeExceptionally(ex);
4120		checkCompletedWithWrappedException(src, ex);
#	Line 3909 | Line 4128 | public class CompletableFutureTest exten
4128		CompletableFuture<Integer> f = new CompletableFuture<>();
4129		f.cancel(mayInterruptIfRunning);
4130		checkCancelled(f);
4131	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4131	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4132		checkCompletedWithWrappedCancellationException(src);
4133		CompletableFuture<?> dep = fun.apply(src);
4134		checkCompletedWithWrappedCancellationException(dep);
#	Line 3920 | Line 4139 | public class CompletableFutureTest exten
4139		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4140		fun : funs) {
4141		CompletableFuture<Integer> f = new CompletableFuture<>();
4142	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4142	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4143		CompletableFuture<?> dep = fun.apply(src);
4144		f.cancel(mayInterruptIfRunning);
4145		checkCancelled(f);
#	Line 3931 | Line 4150 | public class CompletableFutureTest exten
4150		}}
4151
4152		/**
4153	<	* Minimal completion stages throw UOE for all non-CompletionStage methods
4153	>	* Minimal completion stages throw UOE for most non-CompletionStage methods
4154		*/
4155		public void testMinimalCompletionStage_minimality() {
4156		if (!testImplementationDetails) return;
4157		Function<Method, String> toSignature =
4158	<	(method) -> method.getName() + Arrays.toString(method.getParameterTypes());
4158	>	method -> method.getName() + Arrays.toString(method.getParameterTypes());
4159		Predicate<Method> isNotStatic =
4160	<	(method) -> (method.getModifiers() & Modifier.STATIC) == 0;
4160	>	method -> (method.getModifiers() & Modifier.STATIC) == 0;
4161		List<Method> minimalMethods =
4162		Stream.of(Object.class, CompletionStage.class)
4163	<	.flatMap((klazz) -> Stream.of(klazz.getMethods()))
4163	>	.flatMap(klazz -> Stream.of(klazz.getMethods()))
4164		.filter(isNotStatic)
4165		.collect(Collectors.toList());
4166		// Methods from CompletableFuture permitted NOT to throw UOE
#	Line 3957 | Line 4176 | public class CompletableFutureTest exten
4176		.collect(Collectors.toSet());
4177		List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
4178		.filter(isNotStatic)
4179	<	.filter((method) -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4179	>	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4180		.collect(Collectors.toList());
4181
4182	<	CompletionStage<Integer> minimalStage =
4182	>	List<CompletionStage<Integer>> stages = new ArrayList<>();
4183	>	CompletionStage<Integer> min =
4184		new CompletableFuture<Integer>().minimalCompletionStage();
4185	+	stages.add(min);
4186	+	stages.add(min.thenApply(x -> x));
4187	+	stages.add(CompletableFuture.completedStage(1));
4188	+	stages.add(CompletableFuture.failedStage(new CFException()));
4189
4190		List<Method> bugs = new ArrayList<>();
4191		for (Method method : allMethods) {
#	Line 3977 | Line 4201 | public class CompletableFutureTest exten
4201		else if (parameterTypes[i] == long.class)
4202		args[i] = 0L;
4203		}
4204	<	try {
4205	<	method.invoke(minimalStage, args);
4206	<	bugs.add(method);
3983	<	}
3984	<	catch (java.lang.reflect.InvocationTargetException expected) {
3985	<	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4204	>	for (CompletionStage<Integer> stage : stages) {
4205	>	try {
4206	>	method.invoke(stage, args);
4207		bugs.add(method);
3987	–	// expected.getCause().printStackTrace();
4208		}
4209	+	catch (java.lang.reflect.InvocationTargetException expected) {
4210	+	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4211	+	bugs.add(method);
4212	+	// expected.getCause().printStackTrace();
4213	+	}
4214	+	}
4215	+	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4216		}
3990	–	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4217		}
4218		if (!bugs.isEmpty())
4219	<	throw new Error("Methods did not throw UOE: " + bugs.toString());
4219	>	throw new Error("Methods did not throw UOE: " + bugs);
4220		}
4221
4222	+	/**
4223	+	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4224	+	* is completed normally, with the same value, when source is.
4225	+	*/
4226	+	public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() {
4227	+	for (boolean createIncomplete : new boolean[] { true, false })
4228	+	for (Integer v1 : new Integer[] { 1, null })
4229	+	{
4230	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4231	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4232	+	if (!createIncomplete) assertTrue(f.complete(v1));
4233	+	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4234	+	if (createIncomplete) {
4235	+	checkIncomplete(f);
4236	+	checkIncomplete(g);
4237	+	assertTrue(f.complete(v1));
4238	+	}
4239	+	checkCompletedNormally(f, v1);
4240	+	checkCompletedNormally(g, v1);
4241	+	}}
4242	+
4243	+	/**
4244	+	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4245	+	* is completed exceptionally when source is.
4246	+	*/
4247	+	public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() {
4248	+	for (boolean createIncomplete : new boolean[] { true, false })
4249	+	{
4250	+	CFException ex = new CFException();
4251	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4252	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4253	+	if (!createIncomplete) f.completeExceptionally(ex);
4254	+	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4255	+	if (createIncomplete) {
4256	+	checkIncomplete(f);
4257	+	checkIncomplete(g);
4258	+	f.completeExceptionally(ex);
4259	+	}
4260	+	checkCompletedExceptionally(f, ex);
4261	+	checkCompletedWithWrappedException(g, ex);
4262	+	}}
4263	+
4264	+	/**
4265	+	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4266	+	*/
4267	+	public void testMinimalCompletionStage_toCompletableFuture_mutable() {
4268	+	for (Integer v1 : new Integer[] { 1, null })
4269	+	{
4270	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4271	+	CompletionStage minimal = f.minimalCompletionStage();
4272	+	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4273	+	assertTrue(g.complete(v1));
4274	+	checkCompletedNormally(g, v1);
4275	+	checkIncomplete(f);
4276	+	checkIncomplete(minimal.toCompletableFuture());
4277	+	}}
4278	+
4279	+	/**
4280	+	* minimalStage.toCompletableFuture().join() awaits completion
4281	+	*/
4282	+	public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception {
4283	+	for (boolean createIncomplete : new boolean[] { true, false })
4284	+	for (Integer v1 : new Integer[] { 1, null })
4285	+	{
4286	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4287	+	if (!createIncomplete) assertTrue(f.complete(v1));
4288	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4289	+	if (createIncomplete) assertTrue(f.complete(v1));
4290	+	assertEquals(v1, minimal.toCompletableFuture().join());
4291	+	assertEquals(v1, minimal.toCompletableFuture().get());
4292	+	checkCompletedNormally(minimal.toCompletableFuture(), v1);
4293	+	}}
4294	+
4295	+	/**
4296	+	* Completion of a toCompletableFuture copy of a minimal stage
4297	+	* does not complete its source.
4298	+	*/
4299	+	public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() {
4300	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4301	+	CompletionStage<Integer> g = f.minimalCompletionStage();
4302	+	assertTrue(g.toCompletableFuture().complete(1));
4303	+	assertTrue(g.toCompletableFuture().complete(null));
4304	+	assertTrue(g.toCompletableFuture().cancel(true));
4305	+	assertTrue(g.toCompletableFuture().cancel(false));
4306	+	assertTrue(g.toCompletableFuture().completeExceptionally(new CFException()));
4307	+	checkIncomplete(g.toCompletableFuture());
4308	+	f.complete(1);
4309	+	checkCompletedNormally(g.toCompletableFuture(), 1);
4310	+	}
4311	+
4312	+	/** Demo utility method for external reliable toCompletableFuture */
4313	+	static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) {
4314	+	CompletableFuture<T> f = new CompletableFuture<>();
4315	+	stage.handle((T t, Throwable ex) -> {
4316	+	if (ex != null) f.completeExceptionally(ex);
4317	+	else f.complete(t);
4318	+	return null;
4319	+	});
4320	+	return f;
4321	+	}
4322	+
4323	+	/** Demo utility method to join a CompletionStage */
4324	+	static <T> T join(CompletionStage<T> stage) {
4325	+	return toCompletableFuture(stage).join();
4326	+	}
4327	+
4328	+	/**
4329	+	* Joining a minimal stage "by hand" works
4330	+	*/
4331	+	public void testMinimalCompletionStage_join_by_hand() {
4332	+	for (boolean createIncomplete : new boolean[] { true, false })
4333	+	for (Integer v1 : new Integer[] { 1, null })
4334	+	{
4335	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4336	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4337	+	CompletableFuture<Integer> g = new CompletableFuture<>();
4338	+	if (!createIncomplete) assertTrue(f.complete(v1));
4339	+	minimal.thenAccept(x -> g.complete(x));
4340	+	if (createIncomplete) assertTrue(f.complete(v1));
4341	+	g.join();
4342	+	checkCompletedNormally(g, v1);
4343	+	checkCompletedNormally(f, v1);
4344	+	assertEquals(v1, join(minimal));
4345	+	}}
4346	+
4347		static class Monad {
4348		static class ZeroException extends RuntimeException {
4349		public ZeroException() { super("monadic zero"); }
#	Line 4009 | Line 4360 | public class CompletableFutureTest exten
4360		static <T,U,V> Function<T, CompletableFuture<V>> compose
4361		(Function<T, CompletableFuture<U>> f,
4362		Function<U, CompletableFuture<V>> g) {
4363	<	return (x) -> f.apply(x).thenCompose(g);
4363	>	return x -> f.apply(x).thenCompose(g);
4364		}
4365
4366		static void assertZero(CompletableFuture<?> f) {
4367		try {
4368		f.getNow(null);
4369	<	throw new AssertionFailedError("should throw");
4369	>	throw new AssertionError("should throw");
4370		} catch (CompletionException success) {
4371		assertTrue(success.getCause() instanceof ZeroException);
4372		}
#	Line 4089 | Line 4440 | public class CompletableFutureTest exten
4440
4441		// Some mutually non-commutative functions
4442		Function<Long, CompletableFuture<Long>> triple
4443	<	= (x) -> Monad.unit(3 * x);
4443	>	= x -> Monad.unit(3 * x);
4444		Function<Long, CompletableFuture<Long>> inc
4445	<	= (x) -> Monad.unit(x + 1);
4445	>	= x -> Monad.unit(x + 1);
4446
4447		// unit is a right identity: m >>= unit === m
4448		Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
#	Line 4103 | Line 4454 | public class CompletableFutureTest exten
4454		// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4455		Monad.assertFutureEquals(
4456		unit.apply(5L).thenCompose(inc).thenCompose(triple),
4457	<	unit.apply(5L).thenCompose((x) -> inc.apply(x).thenCompose(triple)));
4457	>	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4458
4459		// The case for CompletableFuture as an additive monad is weaker...
4460
#	Line 4113 | Line 4464 | public class CompletableFutureTest exten
4464		// left zero: zero >>= f === zero
4465		Monad.assertZero(zero.thenCompose(inc));
4466		// right zero: f >>= (\x -> zero) === zero
4467	<	Monad.assertZero(inc.apply(5L).thenCompose((x) -> zero));
4467	>	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4468
4469		// f plus zero === f
4470		Monad.assertFutureEquals(Monad.unit(5L),
#	Line 4140 | Line 4491 | public class CompletableFutureTest exten
4491		}
4492
4493		/** Test long recursive chains of CompletableFutures with cascading completions */
4494	+	@SuppressWarnings("FutureReturnValueIgnored")
4495		public void testRecursiveChains() throws Throwable {
4496		for (ExecutionMode m : ExecutionMode.values())
4497		for (boolean addDeadEnds : new boolean[] { true, false })
#	Line 4164 | Line 4516 | public class CompletableFutureTest exten
4516		* A single CompletableFuture with many dependents.
4517		* A demo of scalability - runtime is O(n).
4518		*/
4519	+	@SuppressWarnings("FutureReturnValueIgnored")
4520		public void testManyDependents() throws Throwable {
4521		final int n = expensiveTests ? 1_000_000 : 10;
4522		final CompletableFuture<Void> head = new CompletableFuture<>();
#	Line 4171 | Line 4524 | public class CompletableFutureTest exten
4524		final AtomicInteger count = new AtomicInteger(0);
4525		for (int i = 0; i < n; i++) {
4526		head.thenRun(() -> count.getAndIncrement());
4527	<	head.thenAccept((x) -> count.getAndIncrement());
4528	<	head.thenApply((x) -> count.getAndIncrement());
4527	>	head.thenAccept(x -> count.getAndIncrement());
4528	>	head.thenApply(x -> count.getAndIncrement());
4529
4530		head.runAfterBoth(complete, () -> count.getAndIncrement());
4531		head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
#	Line 4182 | Line 4535 | public class CompletableFutureTest exten
4535		complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4536
4537		head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4538	<	head.acceptEither(new CompletableFuture<Void>(), (x) -> count.getAndIncrement());
4539	<	head.applyToEither(new CompletableFuture<Void>(), (x) -> count.getAndIncrement());
4538	>	head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4539	>	head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4540		new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4541	<	new CompletableFuture<Void>().acceptEither(head, (x) -> count.getAndIncrement());
4542	<	new CompletableFuture<Void>().applyToEither(head, (x) -> count.getAndIncrement());
4541	>	new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement());
4542	>	new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement());
4543		}
4544		head.complete(null);
4545		assertEquals(5 * 3 * n, count.get());
4546		}
4547
4548		/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4549	+	@SuppressWarnings("FutureReturnValueIgnored")
4550		public void testCoCompletionGarbageRetention() throws Throwable {
4551		final int n = expensiveTests ? 1_000_000 : 10;
4552		final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
#	Line 4203 | Line 4557 | public class CompletableFutureTest exten
4557		f.complete(null);
4558
4559		f = new CompletableFuture<>();
4560	<	f.acceptEither(incomplete, (x) -> {});
4560	>	f.acceptEither(incomplete, x -> {});
4561		f.complete(null);
4562
4563		f = new CompletableFuture<>();
4564	<	f.applyToEither(incomplete, (x) -> x);
4564	>	f.applyToEither(incomplete, x -> x);
4565		f.complete(null);
4566
4567		f = new CompletableFuture<>();
4568	<	CompletableFuture.anyOf(new CompletableFuture<?>[] { f, incomplete });
4568	>	CompletableFuture.anyOf(f, incomplete);
4569		f.complete(null);
4570		}
4571
#	Line 4221 | Line 4575 | public class CompletableFutureTest exten
4575		f.complete(null);
4576
4577		f = new CompletableFuture<>();
4578	<	incomplete.acceptEither(f, (x) -> {});
4578	>	incomplete.acceptEither(f, x -> {});
4579		f.complete(null);
4580
4581		f = new CompletableFuture<>();
4582	<	incomplete.applyToEither(f, (x) -> x);
4582	>	incomplete.applyToEither(f, x -> x);
4583		f.complete(null);
4584
4585		f = new CompletableFuture<>();
4586	<	CompletableFuture.anyOf(new CompletableFuture<?>[] { incomplete, f });
4586	>	CompletableFuture.anyOf(incomplete, f);
4587		f.complete(null);
4588		}
4589		}
4590
4591	<	/*
4592	<	* Tests below currently fail in stress mode due to memory retention.
4593	<	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck
4591	>	/**
4592	>	* Reproduction recipe for:
4593	>	* 8160402: Garbage retention with CompletableFuture.anyOf
4594	>	* 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
4595		*/
4241	–
4242	–	/** Checks for garbage retention with anyOf. */
4596		public void testAnyOfGarbageRetention() throws Throwable {
4597		for (Integer v : new Integer[] { 1, null })
4598		{
#	Line 4253 | Line 4606 | public class CompletableFutureTest exten
4606		checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4607		}}
4608
4609	<	/** Checks for garbage retention with allOf. */
4609	>	/**
4610	>	* Checks for garbage retention with allOf.
4611	>	*
4612	>	* As of 2016-07, fails with OOME:
4613	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4614	>	*/
4615		public void testCancelledAllOfGarbageRetention() throws Throwable {
4616		final int n = expensiveTests ? 100_000 : 10;
4617		CompletableFuture<Integer>[] fs
#	Line 4264 | Line 4622 | public class CompletableFutureTest exten
4622		assertTrue(CompletableFuture.allOf(fs).cancel(false));
4623		}
4624
4625	+	/**
4626	+	* Checks for garbage retention when a dependent future is
4627	+	* cancelled and garbage-collected.
4628	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4629	+	*
4630	+	* As of 2016-07, fails with OOME:
4631	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4632	+	*/
4633	+	public void testCancelledGarbageRetention() throws Throwable {
4634	+	final int n = expensiveTests ? 100_000 : 10;
4635	+	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4636	+	for (int i = 0; i < n; i++)
4637	+	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4638	+	}
4639	+
4640	+	/**
4641	+	* Checks for garbage retention when MinimalStage.toCompletableFuture()
4642	+	* is invoked many times.
4643	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4644	+	*
4645	+	* As of 2016-07, fails with OOME:
4646	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck
4647	+	*/
4648	+	public void testToCompletableFutureGarbageRetention() throws Throwable {
4649	+	final int n = expensiveTests ? 900_000 : 10;
4650	+	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4651	+	CompletionStage minimal = neverCompleted.minimalCompletionStage();
4652	+	for (int i = 0; i < n; i++)
4653	+	assertTrue(minimal.toCompletableFuture().cancel(true));
4654	+	}
4655	+
4656		//     static <U> U join(CompletionStage<U> stage) {
4657		//         CompletableFuture<U> f = new CompletableFuture<>();
4658		//         stage.whenComplete((v, ex) -> {
#	Line 4288 | Line 4677 | public class CompletableFutureTest exten
4677		//         return stage.toCompletableFuture().copy().isDone();
4678		//     }
4679
4680	+	// For testing default implementations
4681	+	// Only non-default interface methods defined.
4682	+	static final class DelegatedCompletionStage<T> implements CompletionStage<T> {
4683	+	final CompletableFuture<T> cf;
4684	+	DelegatedCompletionStage(CompletableFuture<T> cf) { this.cf = cf; }
4685	+	public CompletableFuture<T> toCompletableFuture() {
4686	+	return cf; }
4687	+	public CompletionStage<Void> thenRun
4688	+	(Runnable action) {
4689	+	return cf.thenRun(action); }
4690	+	public CompletionStage<Void> thenRunAsync
4691	+	(Runnable action) {
4692	+	return cf.thenRunAsync(action); }
4693	+	public CompletionStage<Void> thenRunAsync
4694	+	(Runnable action,
4695	+	Executor executor) {
4696	+	return cf.thenRunAsync(action, executor); }
4697	+	public CompletionStage<Void> thenAccept
4698	+	(Consumer<? super T> action) {
4699	+	return cf.thenAccept(action); }
4700	+	public CompletionStage<Void> thenAcceptAsync
4701	+	(Consumer<? super T> action) {
4702	+	return cf.thenAcceptAsync(action); }
4703	+	public CompletionStage<Void> thenAcceptAsync
4704	+	(Consumer<? super T> action,
4705	+	Executor executor) {
4706	+	return cf.thenAcceptAsync(action, executor); }
4707	+	public <U> CompletionStage<U> thenApply
4708	+	(Function<? super T,? extends U> a) {
4709	+	return cf.thenApply(a); }
4710	+	public <U> CompletionStage<U> thenApplyAsync
4711	+	(Function<? super T,? extends U> fn) {
4712	+	return cf.thenApplyAsync(fn); }
4713	+	public <U> CompletionStage<U> thenApplyAsync
4714	+	(Function<? super T,? extends U> fn,
4715	+	Executor executor) {
4716	+	return cf.thenApplyAsync(fn, executor); }
4717	+	public <U,V> CompletionStage<V> thenCombine
4718	+	(CompletionStage<? extends U> other,
4719	+	BiFunction<? super T,? super U,? extends V> fn) {
4720	+	return cf.thenCombine(other, fn); }
4721	+	public <U,V> CompletionStage<V> thenCombineAsync
4722	+	(CompletionStage<? extends U> other,
4723	+	BiFunction<? super T,? super U,? extends V> fn) {
4724	+	return cf.thenCombineAsync(other, fn); }
4725	+	public <U,V> CompletionStage<V> thenCombineAsync
4726	+	(CompletionStage<? extends U> other,
4727	+	BiFunction<? super T,? super U,? extends V> fn,
4728	+	Executor executor) {
4729	+	return cf.thenCombineAsync(other, fn, executor); }
4730	+	public <U> CompletionStage<Void> thenAcceptBoth
4731	+	(CompletionStage<? extends U> other,
4732	+	BiConsumer<? super T, ? super U> action) {
4733	+	return cf.thenAcceptBoth(other, action); }
4734	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4735	+	(CompletionStage<? extends U> other,
4736	+	BiConsumer<? super T, ? super U> action) {
4737	+	return cf.thenAcceptBothAsync(other, action); }
4738	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4739	+	(CompletionStage<? extends U> other,
4740	+	BiConsumer<? super T, ? super U> action,
4741	+	Executor executor) {
4742	+	return cf.thenAcceptBothAsync(other, action, executor); }
4743	+	public CompletionStage<Void> runAfterBoth
4744	+	(CompletionStage<?> other,
4745	+	Runnable action) {
4746	+	return cf.runAfterBoth(other, action); }
4747	+	public CompletionStage<Void> runAfterBothAsync
4748	+	(CompletionStage<?> other,
4749	+	Runnable action) {
4750	+	return cf.runAfterBothAsync(other, action); }
4751	+	public CompletionStage<Void> runAfterBothAsync
4752	+	(CompletionStage<?> other,
4753	+	Runnable action,
4754	+	Executor executor) {
4755	+	return cf.runAfterBothAsync(other, action, executor); }
4756	+	public <U> CompletionStage<U> applyToEither
4757	+	(CompletionStage<? extends T> other,
4758	+	Function<? super T, U> fn) {
4759	+	return cf.applyToEither(other, fn); }
4760	+	public <U> CompletionStage<U> applyToEitherAsync
4761	+	(CompletionStage<? extends T> other,
4762	+	Function<? super T, U> fn) {
4763	+	return cf.applyToEitherAsync(other, fn); }
4764	+	public <U> CompletionStage<U> applyToEitherAsync
4765	+	(CompletionStage<? extends T> other,
4766	+	Function<? super T, U> fn,
4767	+	Executor executor) {
4768	+	return cf.applyToEitherAsync(other, fn, executor); }
4769	+	public CompletionStage<Void> acceptEither
4770	+	(CompletionStage<? extends T> other,
4771	+	Consumer<? super T> action) {
4772	+	return cf.acceptEither(other, action); }
4773	+	public CompletionStage<Void> acceptEitherAsync
4774	+	(CompletionStage<? extends T> other,
4775	+	Consumer<? super T> action) {
4776	+	return cf.acceptEitherAsync(other, action); }
4777	+	public CompletionStage<Void> acceptEitherAsync
4778	+	(CompletionStage<? extends T> other,
4779	+	Consumer<? super T> action,
4780	+	Executor executor) {
4781	+	return cf.acceptEitherAsync(other, action, executor); }
4782	+	public CompletionStage<Void> runAfterEither
4783	+	(CompletionStage<?> other,
4784	+	Runnable action) {
4785	+	return cf.runAfterEither(other, action); }
4786	+	public CompletionStage<Void> runAfterEitherAsync
4787	+	(CompletionStage<?> other,
4788	+	Runnable action) {
4789	+	return cf.runAfterEitherAsync(other, action); }
4790	+	public CompletionStage<Void> runAfterEitherAsync
4791	+	(CompletionStage<?> other,
4792	+	Runnable action,
4793	+	Executor executor) {
4794	+	return cf.runAfterEitherAsync(other, action, executor); }
4795	+	public <U> CompletionStage<U> thenCompose
4796	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4797	+	return cf.thenCompose(fn); }
4798	+	public <U> CompletionStage<U> thenComposeAsync
4799	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4800	+	return cf.thenComposeAsync(fn); }
4801	+	public <U> CompletionStage<U> thenComposeAsync
4802	+	(Function<? super T, ? extends CompletionStage<U>> fn,
4803	+	Executor executor) {
4804	+	return cf.thenComposeAsync(fn, executor); }
4805	+	public <U> CompletionStage<U> handle
4806	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4807	+	return cf.handle(fn); }
4808	+	public <U> CompletionStage<U> handleAsync
4809	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4810	+	return cf.handleAsync(fn); }
4811	+	public <U> CompletionStage<U> handleAsync
4812	+	(BiFunction<? super T, Throwable, ? extends U> fn,
4813	+	Executor executor) {
4814	+	return cf.handleAsync(fn, executor); }
4815	+	public CompletionStage<T> whenComplete
4816	+	(BiConsumer<? super T, ? super Throwable> action) {
4817	+	return cf.whenComplete(action); }
4818	+	public CompletionStage<T> whenCompleteAsync
4819	+	(BiConsumer<? super T, ? super Throwable> action) {
4820	+	return cf.whenCompleteAsync(action); }
4821	+	public CompletionStage<T> whenCompleteAsync
4822	+	(BiConsumer<? super T, ? super Throwable> action,
4823	+	Executor executor) {
4824	+	return cf.whenCompleteAsync(action, executor); }
4825	+	public CompletionStage<T> exceptionally
4826	+	(Function<Throwable, ? extends T> fn) {
4827	+	return cf.exceptionally(fn); }
4828	+	}
4829	+
4830	+	/**
4831	+	* default-implemented exceptionallyAsync action is not invoked when
4832	+	* source completes normally, and source result is propagated
4833	+	*/
4834	+	public void testDefaultExceptionallyAsync_normalCompletion() {
4835	+	for (boolean createIncomplete : new boolean[] { true, false })
4836	+	for (Integer v1 : new Integer[] { 1, null })
4837	+	{
4838	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4839	+	final DelegatedCompletionStage<Integer> d =
4840	+	new DelegatedCompletionStage<Integer>(f);
4841	+	if (!createIncomplete) assertTrue(f.complete(v1));
4842	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4843	+	((Throwable t) -> {
4844	+	threadFail("should not be called");
4845	+	return null;            // unreached
4846	+	});
4847	+	if (createIncomplete) assertTrue(f.complete(v1));
4848	+
4849	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4850	+	}}
4851	+
4852	+	/**
4853	+	* default-implemented exceptionallyAsync action completes with
4854	+	* function value on source exception
4855	+	*/
4856	+	public void testDefaultExceptionallyAsync_exceptionalCompletion() {
4857	+	for (boolean createIncomplete : new boolean[] { true, false })
4858	+	for (Integer v1 : new Integer[] { 1, null })
4859	+	{
4860	+	final AtomicInteger a = new AtomicInteger(0);
4861	+	final CFException ex = new CFException();
4862	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4863	+	final DelegatedCompletionStage<Integer> d =
4864	+	new DelegatedCompletionStage<Integer>(f);
4865	+	if (!createIncomplete) f.completeExceptionally(ex);
4866	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4867	+	((Throwable t) -> {
4868	+	threadAssertSame(t, ex);
4869	+	a.getAndIncrement();
4870	+	return v1;
4871	+	});
4872	+	if (createIncomplete) f.completeExceptionally(ex);
4873	+
4874	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4875	+	assertEquals(1, a.get());
4876	+	}}
4877	+
4878	+	/**
4879	+	* Under default implementation, if an "exceptionally action"
4880	+	* throws an exception, it completes exceptionally with that
4881	+	* exception
4882	+	*/
4883	+	public void testDefaultExceptionallyAsync_exceptionalCompletionActionFailed() {
4884	+	for (boolean createIncomplete : new boolean[] { true, false })
4885	+	{
4886	+	final AtomicInteger a = new AtomicInteger(0);
4887	+	final CFException ex1 = new CFException();
4888	+	final CFException ex2 = new CFException();
4889	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4890	+	final DelegatedCompletionStage<Integer> d =
4891	+	new DelegatedCompletionStage<Integer>(f);
4892	+	if (!createIncomplete) f.completeExceptionally(ex1);
4893	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4894	+	((Throwable t) -> {
4895	+	threadAssertSame(t, ex1);
4896	+	a.getAndIncrement();
4897	+	throw ex2;
4898	+	});
4899	+	if (createIncomplete) f.completeExceptionally(ex1);
4900	+
4901	+	checkCompletedWithWrappedException(g.toCompletableFuture(), ex2);
4902	+	checkCompletedExceptionally(f, ex1);
4903	+	checkCompletedExceptionally(d.toCompletableFuture(), ex1);
4904	+	assertEquals(1, a.get());
4905	+	}}
4906	+
4907	+	/**
4908	+	* default-implemented exceptionallyCompose result completes
4909	+	* normally after normal completion of source
4910	+	*/
4911	+	public void testDefaultExceptionallyCompose_normalCompletion() {
4912	+	for (boolean createIncomplete : new boolean[] { true, false })
4913	+	for (Integer v1 : new Integer[] { 1, null })
4914	+	{
4915	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4916	+	final ExceptionalCompletableFutureFunction r =
4917	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4918	+	final DelegatedCompletionStage<Integer> d =
4919	+	new DelegatedCompletionStage<Integer>(f);
4920	+	if (!createIncomplete) assertTrue(f.complete(v1));
4921	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4922	+	if (createIncomplete) assertTrue(f.complete(v1));
4923	+
4924	+	checkCompletedNormally(f, v1);
4925	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4926	+	r.assertNotInvoked();
4927	+	}}
4928	+
4929	+	/**
4930	+	* default-implemented exceptionallyCompose result completes
4931	+	* normally after exceptional completion of source
4932	+	*/
4933	+	public void testDefaultExceptionallyCompose_exceptionalCompletion() {
4934	+	for (boolean createIncomplete : new boolean[] { true, false })
4935	+	{
4936	+	final CFException ex = new CFException();
4937	+	final ExceptionalCompletableFutureFunction r =
4938	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4939	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4940	+	final DelegatedCompletionStage<Integer> d =
4941	+	new DelegatedCompletionStage<Integer>(f);
4942	+	if (!createIncomplete) f.completeExceptionally(ex);
4943	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4944	+	if (createIncomplete) f.completeExceptionally(ex);
4945	+
4946	+	checkCompletedExceptionally(f, ex);
4947	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
4948	+	r.assertInvoked();
4949	+	}}
4950	+
4951	+	/**
4952	+	* default-implemented exceptionallyCompose completes
4953	+	* exceptionally on exception if action does
4954	+	*/
4955	+	public void testDefaultExceptionallyCompose_actionFailed() {
4956	+	for (boolean createIncomplete : new boolean[] { true, false })
4957	+	{
4958	+	final CFException ex = new CFException();
4959	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4960	+	final FailingExceptionalCompletableFutureFunction r
4961	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4962	+	final DelegatedCompletionStage<Integer> d =
4963	+	new DelegatedCompletionStage<Integer>(f);
4964	+	if (!createIncomplete) f.completeExceptionally(ex);
4965	+	final CompletionStage<Integer> g = d.exceptionallyCompose(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	+	* default-implemented exceptionallyComposeAsync result completes
4975	+	* normally after normal completion of source
4976	+	*/
4977	+	public void testDefaultExceptionallyComposeAsync_normalCompletion() {
4978	+	for (boolean createIncomplete : new boolean[] { true, false })
4979	+	for (Integer v1 : new Integer[] { 1, null })
4980	+	{
4981	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4982	+	final ExceptionalCompletableFutureFunction r =
4983	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4984	+	final DelegatedCompletionStage<Integer> d =
4985	+	new DelegatedCompletionStage<Integer>(f);
4986	+	if (!createIncomplete) assertTrue(f.complete(v1));
4987	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4988	+	if (createIncomplete) assertTrue(f.complete(v1));
4989	+
4990	+	checkCompletedNormally(f, v1);
4991	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4992	+	r.assertNotInvoked();
4993	+	}}
4994	+
4995	+	/**
4996	+	* default-implemented exceptionallyComposeAsync result completes
4997	+	* normally after exceptional completion of source
4998	+	*/
4999	+	public void testDefaultExceptionallyComposeAsync_exceptionalCompletion() {
5000	+	for (boolean createIncomplete : new boolean[] { true, false })
5001	+	{
5002	+	final CFException ex = new CFException();
5003	+	final ExceptionalCompletableFutureFunction r =
5004	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
5005	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5006	+	final DelegatedCompletionStage<Integer> d =
5007	+	new DelegatedCompletionStage<Integer>(f);
5008	+	if (!createIncomplete) f.completeExceptionally(ex);
5009	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5010	+	if (createIncomplete) f.completeExceptionally(ex);
5011	+
5012	+	checkCompletedExceptionally(f, ex);
5013	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5014	+	r.assertInvoked();
5015	+	}}
5016	+
5017	+	/**
5018	+	* default-implemented exceptionallyComposeAsync completes
5019	+	* exceptionally on exception if action does
5020	+	*/
5021	+	public void testDefaultExceptionallyComposeAsync_actionFailed() {
5022	+	for (boolean createIncomplete : new boolean[] { true, false })
5023	+	{
5024	+	final CFException ex = new CFException();
5025	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5026	+	final FailingExceptionalCompletableFutureFunction r
5027	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
5028	+	final DelegatedCompletionStage<Integer> d =
5029	+	new DelegatedCompletionStage<Integer>(f);
5030	+	if (!createIncomplete) f.completeExceptionally(ex);
5031	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5032	+	if (createIncomplete) f.completeExceptionally(ex);
5033	+
5034	+	checkCompletedExceptionally(f, ex);
5035	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5036	+	r.assertInvoked();
5037	+	}}
5038	+
5039	+	/**
5040	+	* default-implemented exceptionallyComposeAsync result completes
5041	+	* normally after normal completion of source
5042	+	*/
5043	+	public void testDefaultExceptionallyComposeAsyncExecutor_normalCompletion() {
5044	+	for (boolean createIncomplete : new boolean[] { true, false })
5045	+	for (Integer v1 : new Integer[] { 1, null })
5046	+	{
5047	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5048	+	final ExceptionalCompletableFutureFunction r =
5049	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5050	+	final DelegatedCompletionStage<Integer> d =
5051	+	new DelegatedCompletionStage<Integer>(f);
5052	+	if (!createIncomplete) assertTrue(f.complete(v1));
5053	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5054	+	if (createIncomplete) assertTrue(f.complete(v1));
5055	+
5056	+	checkCompletedNormally(f, v1);
5057	+	checkCompletedNormally(g.toCompletableFuture(), v1);
5058	+	r.assertNotInvoked();
5059	+	}}
5060	+
5061	+	/**
5062	+	* default-implemented exceptionallyComposeAsync result completes
5063	+	* normally after exceptional completion of source
5064	+	*/
5065	+	public void testDefaultExceptionallyComposeAsyncExecutor_exceptionalCompletion() {
5066	+	for (boolean createIncomplete : new boolean[] { true, false })
5067	+	{
5068	+	final CFException ex = new CFException();
5069	+	final ExceptionalCompletableFutureFunction r =
5070	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5071	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5072	+	final DelegatedCompletionStage<Integer> d =
5073	+	new DelegatedCompletionStage<Integer>(f);
5074	+	if (!createIncomplete) f.completeExceptionally(ex);
5075	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5076	+	if (createIncomplete) f.completeExceptionally(ex);
5077	+
5078	+	checkCompletedExceptionally(f, ex);
5079	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5080	+	r.assertInvoked();
5081	+	}}
5082	+
5083	+	/**
5084	+	* default-implemented exceptionallyComposeAsync completes
5085	+	* exceptionally on exception if action does
5086	+	*/
5087	+	public void testDefaultExceptionallyComposeAsyncExecutor_actionFailed() {
5088	+	for (boolean createIncomplete : new boolean[] { true, false })
5089	+	{
5090	+	final CFException ex = new CFException();
5091	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5092	+	final FailingExceptionalCompletableFutureFunction r
5093	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5094	+	final DelegatedCompletionStage<Integer> d =
5095	+	new DelegatedCompletionStage<Integer>(f);
5096	+	if (!createIncomplete) f.completeExceptionally(ex);
5097	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5098	+	if (createIncomplete) f.completeExceptionally(ex);
5099	+
5100	+	checkCompletedExceptionally(f, ex);
5101	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5102	+	r.assertInvoked();
5103	+	}}
5104	+
5105		}

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