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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.162 by jsr166, Sun Jul 3 15:27:28 2016 UTC vs.
Revision 1.199 by dl, Thu Sep 20 00:01:22 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); }
#	Line 538 | 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	>	CompletableFuture<Integer> d = new CompletableFuture<Integer>();
578	>	d.complete(value);
579	>	return d;
580	>	}
581	>	}
582	>
583	>	static class FailingCompletableFutureFunction extends CheckedIntegerAction
584		implements Function<Integer, CompletableFuture<Integer>>
585		{
586		final CFException ex;
#	Line 653 | Line 695 | public class CompletableFutureTest exten
695		Function<? super T,U> a) {
696		return f.applyToEither(g, a);
697		}
698	+	public <T> CompletableFuture<T> exceptionally
699	+	(CompletableFuture<T> f,
700	+	Function<Throwable, ? extends T> fn) {
701	+	return f.exceptionally(fn);
702	+	}
703	+	public <T> CompletableFuture<T> exceptionallyCompose
704	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
705	+	return f.exceptionallyCompose(fn);
706	+	}
707		},
657	–
708		ASYNC {
709		public void checkExecutionMode() {
710		assertEquals(defaultExecutorIsCommonPool,
#	Line 727 | Line 777 | public class CompletableFutureTest exten
777		Function<? super T,U> a) {
778		return f.applyToEitherAsync(g, a);
779		}
780	+	public <T> CompletableFuture<T> exceptionally
781	+	(CompletableFuture<T> f,
782	+	Function<Throwable, ? extends T> fn) {
783	+	return f.exceptionallyAsync(fn);
784	+	}
785	+
786	+	public <T> CompletableFuture<T> exceptionallyCompose
787	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
788	+	return f.exceptionallyComposeAsync(fn);
789	+	}
790	+
791		},
792
793		EXECUTOR {
#	Line 800 | Line 861 | public class CompletableFutureTest exten
861		Function<? super T,U> a) {
862		return f.applyToEitherAsync(g, a, new ThreadExecutor());
863		}
864	+	public <T> CompletableFuture<T> exceptionally
865	+	(CompletableFuture<T> f,
866	+	Function<Throwable, ? extends T> fn) {
867	+	return f.exceptionallyAsync(fn, new ThreadExecutor());
868	+	}
869	+	public <T> CompletableFuture<T> exceptionallyCompose
870	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
871	+	return f.exceptionallyComposeAsync(fn, new ThreadExecutor());
872	+	}
873	+
874		};
875
876		public abstract void checkExecutionMode();
#	Line 842 | Line 913 | public class CompletableFutureTest exten
913		(CompletableFuture<T> f,
914		CompletionStage<? extends T> g,
915		Function<? super T,U> a);
916	+	public abstract <T> CompletableFuture<T> exceptionally
917	+	(CompletableFuture<T> f,
918	+	Function<Throwable, ? extends T> fn);
919	+	public abstract <T> CompletableFuture<T> exceptionallyCompose
920	+	(CompletableFuture<T> f,
921	+	Function<Throwable, ? extends CompletionStage<T>> fn);
922		}
923
924		/**
#	Line 849 | Line 926 | public class CompletableFutureTest exten
926		* normally, and source result is propagated
927		*/
928		public void testExceptionally_normalCompletion() {
929	+	for (ExecutionMode m : ExecutionMode.values())
930		for (boolean createIncomplete : new boolean[] { true, false })
931		for (Integer v1 : new Integer[] { 1, null })
932		{
933		final AtomicInteger a = new AtomicInteger(0);
934		final CompletableFuture<Integer> f = new CompletableFuture<>();
935		if (!createIncomplete) assertTrue(f.complete(v1));
936	<	final CompletableFuture<Integer> g = f.exceptionally
937	<	((Throwable t) -> {
936	>	final CompletableFuture<Integer> g = m.exceptionally
937	>	(f, (Throwable t) -> {
938		a.getAndIncrement();
939		threadFail("should not be called");
940		return null;            // unreached
#	Line 873 | Line 951 | public class CompletableFutureTest exten
951		* exception
952		*/
953		public void testExceptionally_exceptionalCompletion() {
954	+	for (ExecutionMode m : ExecutionMode.values())
955		for (boolean createIncomplete : new boolean[] { true, false })
956		for (Integer v1 : new Integer[] { 1, null })
957		{
#	Line 880 | Line 959 | public class CompletableFutureTest exten
959		final CFException ex = new CFException();
960		final CompletableFuture<Integer> f = new CompletableFuture<>();
961		if (!createIncomplete) f.completeExceptionally(ex);
962	<	final CompletableFuture<Integer> g = f.exceptionally
963	<	((Throwable t) -> {
964	<	ExecutionMode.SYNC.checkExecutionMode();
962	>	final CompletableFuture<Integer> g = m.exceptionally
963	>	(f, (Throwable t) -> {
964	>	m.checkExecutionMode();
965		threadAssertSame(t, ex);
966		a.getAndIncrement();
967		return v1;
#	Line 898 | Line 977 | public class CompletableFutureTest exten
977		* exceptionally with that exception
978		*/
979		public void testExceptionally_exceptionalCompletionActionFailed() {
980	+	for (ExecutionMode m : ExecutionMode.values())
981		for (boolean createIncomplete : new boolean[] { true, false })
982		{
983		final AtomicInteger a = new AtomicInteger(0);
#	Line 905 | Line 985 | public class CompletableFutureTest exten
985		final CFException ex2 = new CFException();
986		final CompletableFuture<Integer> f = new CompletableFuture<>();
987		if (!createIncomplete) f.completeExceptionally(ex1);
988	<	final CompletableFuture<Integer> g = f.exceptionally
989	<	((Throwable t) -> {
990	<	ExecutionMode.SYNC.checkExecutionMode();
988	>	final CompletableFuture<Integer> g = m.exceptionally
989	>	(f, (Throwable t) -> {
990	>	m.checkExecutionMode();
991		threadAssertSame(t, ex1);
992		a.getAndIncrement();
993		throw ex2;
#	Line 1243 | Line 1323 | public class CompletableFutureTest exten
1323		r.assertInvoked();
1324		}}
1325
1326	+	@SuppressWarnings("FutureReturnValueIgnored")
1327		public void testRunAsync_rejectingExecutor() {
1328		CountingRejectingExecutor e = new CountingRejectingExecutor();
1329		try {
#	Line 1289 | Line 1370 | public class CompletableFutureTest exten
1370		r.assertInvoked();
1371		}}
1372
1373	+	@SuppressWarnings("FutureReturnValueIgnored")
1374		public void testSupplyAsync_rejectingExecutor() {
1375		CountingRejectingExecutor e = new CountingRejectingExecutor();
1376		try {
#	Line 2563 | Line 2645 | public class CompletableFutureTest exten
2645
2646		// unspecified behavior - both source completions available
2647		try {
2648	<	assertEquals(null, h0.join());
2648	>	assertNull(h0.join());
2649		rs[0].assertValue(v1);
2650		} catch (CompletionException ok) {
2651		checkCompletedWithWrappedException(h0, ex);
2652		rs[0].assertNotInvoked();
2653		}
2654		try {
2655	<	assertEquals(null, h1.join());
2655	>	assertNull(h1.join());
2656		rs[1].assertValue(v1);
2657		} catch (CompletionException ok) {
2658		checkCompletedWithWrappedException(h1, ex);
2659		rs[1].assertNotInvoked();
2660		}
2661		try {
2662	<	assertEquals(null, h2.join());
2662	>	assertNull(h2.join());
2663		rs[2].assertValue(v1);
2664		} catch (CompletionException ok) {
2665		checkCompletedWithWrappedException(h2, ex);
2666		rs[2].assertNotInvoked();
2667		}
2668		try {
2669	<	assertEquals(null, h3.join());
2669	>	assertNull(h3.join());
2670		rs[3].assertValue(v1);
2671		} catch (CompletionException ok) {
2672		checkCompletedWithWrappedException(h3, ex);
#	Line 2823 | Line 2905 | public class CompletableFutureTest exten
2905
2906		// unspecified behavior - both source completions available
2907		try {
2908	<	assertEquals(null, h0.join());
2908	>	assertNull(h0.join());
2909		rs[0].assertInvoked();
2910		} catch (CompletionException ok) {
2911		checkCompletedWithWrappedException(h0, ex);
2912		rs[0].assertNotInvoked();
2913		}
2914		try {
2915	<	assertEquals(null, h1.join());
2915	>	assertNull(h1.join());
2916		rs[1].assertInvoked();
2917		} catch (CompletionException ok) {
2918		checkCompletedWithWrappedException(h1, ex);
2919		rs[1].assertNotInvoked();
2920		}
2921		try {
2922	<	assertEquals(null, h2.join());
2922	>	assertNull(h2.join());
2923		rs[2].assertInvoked();
2924		} catch (CompletionException ok) {
2925		checkCompletedWithWrappedException(h2, ex);
2926		rs[2].assertNotInvoked();
2927		}
2928		try {
2929	<	assertEquals(null, h3.join());
2929	>	assertNull(h3.join());
2930		rs[3].assertInvoked();
2931		} catch (CompletionException ok) {
2932		checkCompletedWithWrappedException(h3, ex);
#	Line 3076 | Line 3158 | public class CompletableFutureTest exten
3158		checkCompletedNormally(f, v1);
3159		}}
3160
3161	+	/**
3162	+	* exceptionallyCompose result completes normally after normal
3163	+	* completion of source
3164	+	*/
3165	+	public void testExceptionallyCompose_normalCompletion() {
3166	+	for (ExecutionMode m : ExecutionMode.values())
3167	+	for (boolean createIncomplete : new boolean[] { true, false })
3168	+	for (Integer v1 : new Integer[] { 1, null })
3169	+	{
3170	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3171	+	final ExceptionalCompletableFutureFunction r =
3172	+	new ExceptionalCompletableFutureFunction(m);
3173	+	if (!createIncomplete) assertTrue(f.complete(v1));
3174	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3175	+	if (createIncomplete) assertTrue(f.complete(v1));
3176	+
3177	+	checkCompletedNormally(f, v1);
3178	+	checkCompletedNormally(g, v1);
3179	+	r.assertNotInvoked();
3180	+	}}
3181	+
3182	+	/**
3183	+	* exceptionallyCompose result completes normally after exceptional
3184	+	* completion of source
3185	+	*/
3186	+	public void testExceptionallyCompose_exceptionalCompletion() {
3187	+	for (ExecutionMode m : ExecutionMode.values())
3188	+	for (boolean createIncomplete : new boolean[] { true, false })
3189	+	{
3190	+	final CFException ex = new CFException();
3191	+	final ExceptionalCompletableFutureFunction r =
3192	+	new ExceptionalCompletableFutureFunction(m);
3193	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3194	+	if (!createIncomplete) f.completeExceptionally(ex);
3195	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3196	+	if (createIncomplete) f.completeExceptionally(ex);
3197	+
3198	+	checkCompletedExceptionally(f, ex);
3199	+	checkCompletedNormally(g, r.value);
3200	+	r.assertInvoked();
3201	+	}}
3202	+
3203	+	/**
3204	+	* exceptionallyCompose completes exceptionally on exception if action does
3205	+	*/
3206	+	public void testExceptionallyCompose_actionFailed() {
3207	+	for (ExecutionMode m : ExecutionMode.values())
3208	+	for (boolean createIncomplete : new boolean[] { true, false })
3209	+	for (Integer v1 : new Integer[] { 1, null })
3210	+	{
3211	+	final CFException ex = new CFException();
3212	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3213	+	final FailingExceptionalCompletableFutureFunction r
3214	+	= new FailingExceptionalCompletableFutureFunction(m);
3215	+	if (!createIncomplete) f.completeExceptionally(ex);
3216	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3217	+	if (createIncomplete) f.completeExceptionally(ex);
3218	+
3219	+	checkCompletedExceptionally(f, ex);
3220	+	checkCompletedWithWrappedException(g, r.ex);
3221	+	r.assertInvoked();
3222	+	}}
3223	+
3224	+
3225		// other static methods
3226
3227		/**
#	Line 3239 | Line 3385 | public class CompletableFutureTest exten
3385		/**
3386		* Completion methods throw NullPointerException with null arguments
3387		*/
3388	+	@SuppressWarnings("FutureReturnValueIgnored")
3389		public void testNPE() {
3390		CompletableFuture<Integer> f = new CompletableFuture<>();
3391		CompletableFuture<Integer> g = new CompletableFuture<>();
#	Line 3258 | Line 3405 | public class CompletableFutureTest exten
3405
3406		() -> f.thenApply(null),
3407		() -> f.thenApplyAsync(null),
3408	<	() -> f.thenApplyAsync((x) -> x, null),
3408	>	() -> f.thenApplyAsync(x -> x, null),
3409		() -> f.thenApplyAsync(null, exec),
3410
3411		() -> f.thenAccept(null),
3412		() -> f.thenAcceptAsync(null),
3413	<	() -> f.thenAcceptAsync((x) -> {} , null),
3413	>	() -> f.thenAcceptAsync(x -> {} , null),
3414		() -> f.thenAcceptAsync(null, exec),
3415
3416		() -> f.thenRun(null),
#	Line 3298 | Line 3445 | public class CompletableFutureTest exten
3445		() -> f.applyToEither(g, null),
3446		() -> f.applyToEitherAsync(g, null),
3447		() -> f.applyToEitherAsync(g, null, exec),
3448	<	() -> f.applyToEither(nullFuture, (x) -> x),
3449	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x),
3450	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
3451	<	() -> f.applyToEitherAsync(g, (x) -> x, null),
3448	>	() -> f.applyToEither(nullFuture, x -> x),
3449	>	() -> f.applyToEitherAsync(nullFuture, x -> x),
3450	>	() -> f.applyToEitherAsync(nullFuture, x -> x, exec),
3451	>	() -> f.applyToEitherAsync(g, x -> x, null),
3452
3453		() -> f.acceptEither(g, null),
3454		() -> f.acceptEitherAsync(g, null),
3455		() -> f.acceptEitherAsync(g, null, exec),
3456	<	() -> f.acceptEither(nullFuture, (x) -> {}),
3457	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}),
3458	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
3459	<	() -> f.acceptEitherAsync(g, (x) -> {}, null),
3456	>	() -> f.acceptEither(nullFuture, x -> {}),
3457	>	() -> f.acceptEitherAsync(nullFuture, x -> {}),
3458	>	() -> f.acceptEitherAsync(nullFuture, x -> {}, exec),
3459	>	() -> f.acceptEitherAsync(g, x -> {}, null),
3460
3461		() -> f.runAfterEither(g, null),
3462		() -> f.runAfterEitherAsync(g, null),
#	Line 3375 | Line 3522 | public class CompletableFutureTest exten
3522		for (CompletableFuture<Integer> src : srcs) {
3523		List<CompletableFuture<?>> fs = new ArrayList<>();
3524		fs.add(src.thenRunAsync(() -> {}, e));
3525	<	fs.add(src.thenAcceptAsync((z) -> {}, e));
3526	<	fs.add(src.thenApplyAsync((z) -> z, e));
3525	>	fs.add(src.thenAcceptAsync(z -> {}, e));
3526	>	fs.add(src.thenApplyAsync(z -> z, e));
3527
3528		fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3529		fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3530		fs.add(src.runAfterBothAsync(src, () -> {}, e));
3531
3532	<	fs.add(src.applyToEitherAsync(src, (z) -> z, e));
3533	<	fs.add(src.acceptEitherAsync(src, (z) -> {}, e));
3532	>	fs.add(src.applyToEitherAsync(src, z -> z, e));
3533	>	fs.add(src.acceptEitherAsync(src, z -> {}, e));
3534		fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3535
3536	<	fs.add(src.thenComposeAsync((z) -> null, e));
3536	>	fs.add(src.thenComposeAsync(z -> null, e));
3537		fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3538		fs.add(src.handleAsync((z, t) -> null, e));
3539
#	Line 3419 | Line 3566 | public class CompletableFutureTest exten
3566		{
3567		List<CompletableFuture<?>> fs = new ArrayList<>();
3568
3569	<	fs.add(complete.applyToEitherAsync(incomplete, (z) -> z, e));
3570	<	fs.add(incomplete.applyToEitherAsync(complete, (z) -> z, e));
3569	>	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3570	>	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3571
3572	<	fs.add(complete.acceptEitherAsync(incomplete, (z) -> {}, e));
3573	<	fs.add(incomplete.acceptEitherAsync(complete, (z) -> {}, e));
3572	>	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3573	>	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3574
3575		fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3576		fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
#	Line 3462 | Line 3609 | public class CompletableFutureTest exten
3609
3610		List<CompletableFuture<?>> fs = new ArrayList<>();
3611		fs.add(incomplete.thenRunAsync(() -> {}, e));
3612	<	fs.add(incomplete.thenAcceptAsync((z) -> {}, e));
3613	<	fs.add(incomplete.thenApplyAsync((z) -> z, e));
3612	>	fs.add(incomplete.thenAcceptAsync(z -> {}, e));
3613	>	fs.add(incomplete.thenApplyAsync(z -> z, e));
3614
3615		fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3616		fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3617		fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3618
3619	<	fs.add(incomplete.applyToEitherAsync(incomplete, (z) -> z, e));
3620	<	fs.add(incomplete.acceptEitherAsync(incomplete, (z) -> {}, e));
3619	>	fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e));
3620	>	fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e));
3621		fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3622
3623	<	fs.add(incomplete.thenComposeAsync((z) -> null, e));
3623	>	fs.add(incomplete.thenComposeAsync(z -> null, e));
3624		fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3625		fs.add(incomplete.handleAsync((z, t) -> null, e));
3626
#	Line 3533 | Line 3680 | public class CompletableFutureTest exten
3680		*/
3681		public void testCompletedStage() {
3682		AtomicInteger x = new AtomicInteger(0);
3683	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3683	>	AtomicReference<Throwable> r = new AtomicReference<>();
3684		CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3685		f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3686		assertEquals(x.get(), 1);
#	Line 3578 | Line 3725 | public class CompletableFutureTest exten
3725		* copy returns a CompletableFuture that is completed normally,
3726		* with the same value, when source is.
3727		*/
3728	<	public void testCopy() {
3728	>	public void testCopy_normalCompletion() {
3729	>	for (boolean createIncomplete : new boolean[] { true, false })
3730	>	for (Integer v1 : new Integer[] { 1, null })
3731	>	{
3732		CompletableFuture<Integer> f = new CompletableFuture<>();
3733	+	if (!createIncomplete) assertTrue(f.complete(v1));
3734		CompletableFuture<Integer> g = f.copy();
3735	<	checkIncomplete(f);
3736	<	checkIncomplete(g);
3737	<	f.complete(1);
3738	<	checkCompletedNormally(f, 1);
3739	<	checkCompletedNormally(g, 1);
3740	<	}
3735	>	if (createIncomplete) {
3736	>	checkIncomplete(f);
3737	>	checkIncomplete(g);
3738	>	assertTrue(f.complete(v1));
3739	>	}
3740	>	checkCompletedNormally(f, v1);
3741	>	checkCompletedNormally(g, v1);
3742	>	}}
3743
3744		/**
3745		* copy returns a CompletableFuture that is completed exceptionally
3746		* when source is.
3747		*/
3748	<	public void testCopy2() {
3748	>	public void testCopy_exceptionalCompletion() {
3749	>	for (boolean createIncomplete : new boolean[] { true, false })
3750	>	{
3751	>	CFException ex = new CFException();
3752		CompletableFuture<Integer> f = new CompletableFuture<>();
3753	+	if (!createIncomplete) f.completeExceptionally(ex);
3754		CompletableFuture<Integer> g = f.copy();
3755	<	checkIncomplete(f);
3756	<	checkIncomplete(g);
3757	<	CFException ex = new CFException();
3758	<	f.completeExceptionally(ex);
3755	>	if (createIncomplete) {
3756	>	checkIncomplete(f);
3757	>	checkIncomplete(g);
3758	>	f.completeExceptionally(ex);
3759	>	}
3760		checkCompletedExceptionally(f, ex);
3761		checkCompletedWithWrappedException(g, ex);
3762	+	}}
3763	+
3764	+	/**
3765	+	* Completion of a copy does not complete its source.
3766	+	*/
3767	+	public void testCopy_oneWayPropagation() {
3768	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3769	+	assertTrue(f.copy().complete(1));
3770	+	assertTrue(f.copy().complete(null));
3771	+	assertTrue(f.copy().cancel(true));
3772	+	assertTrue(f.copy().cancel(false));
3773	+	assertTrue(f.copy().completeExceptionally(new CFException()));
3774	+	checkIncomplete(f);
3775		}
3776
3777		/**
#	Line 3611 | Line 3782 | public class CompletableFutureTest exten
3782		CompletableFuture<Integer> f = new CompletableFuture<>();
3783		CompletionStage<Integer> g = f.minimalCompletionStage();
3784		AtomicInteger x = new AtomicInteger(0);
3785	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3785	>	AtomicReference<Throwable> r = new AtomicReference<>();
3786		checkIncomplete(f);
3787		g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3788		f.complete(1);
#	Line 3628 | Line 3799 | public class CompletableFutureTest exten
3799		CompletableFuture<Integer> f = new CompletableFuture<>();
3800		CompletionStage<Integer> g = f.minimalCompletionStage();
3801		AtomicInteger x = new AtomicInteger(0);
3802	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3802	>	AtomicReference<Throwable> r = new AtomicReference<>();
3803		g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3804		checkIncomplete(f);
3805		CFException ex = new CFException();
#	Line 3646 | Line 3817 | public class CompletableFutureTest exten
3817		CFException ex = new CFException();
3818		CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3819		AtomicInteger x = new AtomicInteger(0);
3820	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3820	>	AtomicReference<Throwable> r = new AtomicReference<>();
3821		f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3822		assertEquals(x.get(), 0);
3823		assertEquals(r.get(), ex);
#	Line 3670 | Line 3841 | public class CompletableFutureTest exten
3841		public void testCompleteAsync2() {
3842		CompletableFuture<Integer> f = new CompletableFuture<>();
3843		CFException ex = new CFException();
3844	<	f.completeAsync(() -> {if (true) throw ex; return 1;});
3844	>	f.completeAsync(() -> { throw ex; });
3845		try {
3846		f.join();
3847		shouldThrow();
#	Line 3700 | Line 3871 | public class CompletableFutureTest exten
3871		CompletableFuture<Integer> f = new CompletableFuture<>();
3872		CFException ex = new CFException();
3873		ThreadExecutor executor = new ThreadExecutor();
3874	<	f.completeAsync(() -> {if (true) throw ex; return 1;}, executor);
3874	>	f.completeAsync(() -> { throw ex; }, executor);
3875		try {
3876		f.join();
3877		shouldThrow();
#	Line 3852 | Line 4023 | public class CompletableFutureTest exten
4023		final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
4024		final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4025
4026	+	final Runnable noopRunnable = new Noop(m);
4027	+	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
4028	+	final Function<Integer, Integer> incFunction = new IncFunction(m);
4029	+
4030		List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
4031		= new ArrayList<>();
4032
4033	<	funs.add((y) -> m.thenRun(y, new Noop(m)));
4034	<	funs.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
4035	<	funs.add((y) -> m.thenApply(y, new IncFunction(m)));
4036	<
4037	<	funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
4038	<	funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
4039	<	funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
4040	<
4041	<	funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
4042	<	funs.add((y) -> m.runAfterBoth(v42, y, new Noop(m)));
4043	<	funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4044	<	funs.add((y) -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
4045	<	funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
4046	<	funs.add((y) -> m.thenCombine(v42, y, new SubtractFunction(m)));
4047	<
4048	<	funs.add((y) -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
4049	<
4050	<	funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
4051	<
4052	<	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y}));
4053	<	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
4054	<	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {v42, y}));
4055	<	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y}));
4056	<	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
4057	<	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {incomplete, y}));
4033	>	funs.add(y -> m.thenRun(y, noopRunnable));
4034	>	funs.add(y -> m.thenAccept(y, noopConsumer));
4035	>	funs.add(y -> m.thenApply(y, incFunction));
4036	>
4037	>	funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable));
4038	>	funs.add(y -> m.acceptEither(y, incomplete, noopConsumer));
4039	>	funs.add(y -> m.applyToEither(y, incomplete, incFunction));
4040	>
4041	>	funs.add(y -> m.runAfterBoth(y, v42, noopRunnable));
4042	>	funs.add(y -> m.runAfterBoth(v42, y, noopRunnable));
4043	>	funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4044	>	funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
4045	>	funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m)));
4046	>	funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m)));
4047	>
4048	>	funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
4049	>
4050	>	funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m)));
4051	>
4052	>	funs.add(y -> CompletableFuture.allOf(y));
4053	>	funs.add(y -> CompletableFuture.allOf(y, v42));
4054	>	funs.add(y -> CompletableFuture.allOf(v42, y));
4055	>	funs.add(y -> CompletableFuture.anyOf(y));
4056	>	funs.add(y -> CompletableFuture.anyOf(y, incomplete));
4057	>	funs.add(y -> CompletableFuture.anyOf(incomplete, y));
4058
4059		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4060		fun : funs) {
4061		CompletableFuture<Integer> f = new CompletableFuture<>();
4062		f.completeExceptionally(ex);
4063	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4063	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4064		checkCompletedWithWrappedException(src, ex);
4065		CompletableFuture<?> dep = fun.apply(src);
4066		checkCompletedWithWrappedException(dep, ex);
#	Line 3895 | Line 4070 | public class CompletableFutureTest exten
4070		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4071		fun : funs) {
4072		CompletableFuture<Integer> f = new CompletableFuture<>();
4073	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4073	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4074		CompletableFuture<?> dep = fun.apply(src);
4075		f.completeExceptionally(ex);
4076		checkCompletedWithWrappedException(src, ex);
#	Line 3909 | Line 4084 | public class CompletableFutureTest exten
4084		CompletableFuture<Integer> f = new CompletableFuture<>();
4085		f.cancel(mayInterruptIfRunning);
4086		checkCancelled(f);
4087	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4087	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4088		checkCompletedWithWrappedCancellationException(src);
4089		CompletableFuture<?> dep = fun.apply(src);
4090		checkCompletedWithWrappedCancellationException(dep);
#	Line 3920 | Line 4095 | public class CompletableFutureTest exten
4095		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4096		fun : funs) {
4097		CompletableFuture<Integer> f = new CompletableFuture<>();
4098	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4098	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4099		CompletableFuture<?> dep = fun.apply(src);
4100		f.cancel(mayInterruptIfRunning);
4101		checkCancelled(f);
#	Line 3931 | Line 4106 | public class CompletableFutureTest exten
4106		}}
4107
4108		/**
4109	<	* Minimal completion stages throw UOE for all non-CompletionStage methods
4109	>	* Minimal completion stages throw UOE for most non-CompletionStage methods
4110		*/
4111		public void testMinimalCompletionStage_minimality() {
4112		if (!testImplementationDetails) return;
4113		Function<Method, String> toSignature =
4114	<	(method) -> method.getName() + Arrays.toString(method.getParameterTypes());
4114	>	method -> method.getName() + Arrays.toString(method.getParameterTypes());
4115		Predicate<Method> isNotStatic =
4116	<	(method) -> (method.getModifiers() & Modifier.STATIC) == 0;
4116	>	method -> (method.getModifiers() & Modifier.STATIC) == 0;
4117		List<Method> minimalMethods =
4118		Stream.of(Object.class, CompletionStage.class)
4119	<	.flatMap((klazz) -> Stream.of(klazz.getMethods()))
4119	>	.flatMap(klazz -> Stream.of(klazz.getMethods()))
4120		.filter(isNotStatic)
4121		.collect(Collectors.toList());
4122		// Methods from CompletableFuture permitted NOT to throw UOE
#	Line 3957 | Line 4132 | public class CompletableFutureTest exten
4132		.collect(Collectors.toSet());
4133		List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
4134		.filter(isNotStatic)
4135	<	.filter((method) -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4135	>	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4136		.collect(Collectors.toList());
4137
4138	<	CompletionStage<Integer> minimalStage =
4138	>	List<CompletionStage<Integer>> stages = new ArrayList<>();
4139	>	CompletionStage<Integer> min =
4140		new CompletableFuture<Integer>().minimalCompletionStage();
4141	+	stages.add(min);
4142	+	stages.add(min.thenApply(x -> x));
4143	+	stages.add(CompletableFuture.completedStage(1));
4144	+	stages.add(CompletableFuture.failedStage(new CFException()));
4145
4146		List<Method> bugs = new ArrayList<>();
4147		for (Method method : allMethods) {
#	Line 3977 | Line 4157 | public class CompletableFutureTest exten
4157		else if (parameterTypes[i] == long.class)
4158		args[i] = 0L;
4159		}
4160	<	try {
4161	<	method.invoke(minimalStage, args);
4162	<	bugs.add(method);
3983	<	}
3984	<	catch (java.lang.reflect.InvocationTargetException expected) {
3985	<	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4160	>	for (CompletionStage<Integer> stage : stages) {
4161	>	try {
4162	>	method.invoke(stage, args);
4163		bugs.add(method);
3987	–	// expected.getCause().printStackTrace();
4164		}
4165	+	catch (java.lang.reflect.InvocationTargetException expected) {
4166	+	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4167	+	bugs.add(method);
4168	+	// expected.getCause().printStackTrace();
4169	+	}
4170	+	}
4171	+	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4172		}
3990	–	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4173		}
4174		if (!bugs.isEmpty())
4175	<	throw new Error("Methods did not throw UOE: " + bugs.toString());
4175	>	throw new Error("Methods did not throw UOE: " + bugs);
4176	>	}
4177	>
4178	>	/**
4179	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4180	>	* is completed normally, with the same value, when source is.
4181	>	*/
4182	>	public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() {
4183	>	for (boolean createIncomplete : new boolean[] { true, false })
4184	>	for (Integer v1 : new Integer[] { 1, null })
4185	>	{
4186	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4187	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4188	>	if (!createIncomplete) assertTrue(f.complete(v1));
4189	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4190	>	if (createIncomplete) {
4191	>	checkIncomplete(f);
4192	>	checkIncomplete(g);
4193	>	assertTrue(f.complete(v1));
4194	>	}
4195	>	checkCompletedNormally(f, v1);
4196	>	checkCompletedNormally(g, v1);
4197	>	}}
4198	>
4199	>	/**
4200	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4201	>	* is completed exceptionally when source is.
4202	>	*/
4203	>	public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() {
4204	>	for (boolean createIncomplete : new boolean[] { true, false })
4205	>	{
4206	>	CFException ex = new CFException();
4207	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4208	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4209	>	if (!createIncomplete) f.completeExceptionally(ex);
4210	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4211	>	if (createIncomplete) {
4212	>	checkIncomplete(f);
4213	>	checkIncomplete(g);
4214	>	f.completeExceptionally(ex);
4215	>	}
4216	>	checkCompletedExceptionally(f, ex);
4217	>	checkCompletedWithWrappedException(g, ex);
4218	>	}}
4219	>
4220	>	/**
4221	>	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4222	>	*/
4223	>	public void testMinimalCompletionStage_toCompletableFuture_mutable() {
4224	>	for (Integer v1 : new Integer[] { 1, null })
4225	>	{
4226	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4227	>	CompletionStage minimal = f.minimalCompletionStage();
4228	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4229	>	assertTrue(g.complete(v1));
4230	>	checkCompletedNormally(g, v1);
4231	>	checkIncomplete(f);
4232	>	checkIncomplete(minimal.toCompletableFuture());
4233	>	}}
4234	>
4235	>	/**
4236	>	* minimalStage.toCompletableFuture().join() awaits completion
4237	>	*/
4238	>	public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception {
4239	>	for (boolean createIncomplete : new boolean[] { true, false })
4240	>	for (Integer v1 : new Integer[] { 1, null })
4241	>	{
4242	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4243	>	if (!createIncomplete) assertTrue(f.complete(v1));
4244	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4245	>	if (createIncomplete) assertTrue(f.complete(v1));
4246	>	assertEquals(v1, minimal.toCompletableFuture().join());
4247	>	assertEquals(v1, minimal.toCompletableFuture().get());
4248	>	checkCompletedNormally(minimal.toCompletableFuture(), v1);
4249	>	}}
4250	>
4251	>	/**
4252	>	* Completion of a toCompletableFuture copy of a minimal stage
4253	>	* does not complete its source.
4254	>	*/
4255	>	public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() {
4256	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4257	>	CompletionStage<Integer> g = f.minimalCompletionStage();
4258	>	assertTrue(g.toCompletableFuture().complete(1));
4259	>	assertTrue(g.toCompletableFuture().complete(null));
4260	>	assertTrue(g.toCompletableFuture().cancel(true));
4261	>	assertTrue(g.toCompletableFuture().cancel(false));
4262	>	assertTrue(g.toCompletableFuture().completeExceptionally(new CFException()));
4263	>	checkIncomplete(g.toCompletableFuture());
4264	>	f.complete(1);
4265	>	checkCompletedNormally(g.toCompletableFuture(), 1);
4266	>	}
4267	>
4268	>	/** Demo utility method for external reliable toCompletableFuture */
4269	>	static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) {
4270	>	CompletableFuture<T> f = new CompletableFuture<>();
4271	>	stage.handle((T t, Throwable ex) -> {
4272	>	if (ex != null) f.completeExceptionally(ex);
4273	>	else f.complete(t);
4274	>	return null;
4275	>	});
4276	>	return f;
4277	>	}
4278	>
4279	>	/** Demo utility method to join a CompletionStage */
4280	>	static <T> T join(CompletionStage<T> stage) {
4281	>	return toCompletableFuture(stage).join();
4282		}
4283
4284	+	/**
4285	+	* Joining a minimal stage "by hand" works
4286	+	*/
4287	+	public void testMinimalCompletionStage_join_by_hand() {
4288	+	for (boolean createIncomplete : new boolean[] { true, false })
4289	+	for (Integer v1 : new Integer[] { 1, null })
4290	+	{
4291	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4292	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4293	+	CompletableFuture<Integer> g = new CompletableFuture<>();
4294	+	if (!createIncomplete) assertTrue(f.complete(v1));
4295	+	minimal.thenAccept(x -> g.complete(x));
4296	+	if (createIncomplete) assertTrue(f.complete(v1));
4297	+	g.join();
4298	+	checkCompletedNormally(g, v1);
4299	+	checkCompletedNormally(f, v1);
4300	+	assertEquals(v1, join(minimal));
4301	+	}}
4302	+
4303		static class Monad {
4304		static class ZeroException extends RuntimeException {
4305		public ZeroException() { super("monadic zero"); }
#	Line 4009 | Line 4316 | public class CompletableFutureTest exten
4316		static <T,U,V> Function<T, CompletableFuture<V>> compose
4317		(Function<T, CompletableFuture<U>> f,
4318		Function<U, CompletableFuture<V>> g) {
4319	<	return (x) -> f.apply(x).thenCompose(g);
4319	>	return x -> f.apply(x).thenCompose(g);
4320		}
4321
4322		static void assertZero(CompletableFuture<?> f) {
4323		try {
4324		f.getNow(null);
4325	<	throw new AssertionFailedError("should throw");
4325	>	throw new AssertionError("should throw");
4326		} catch (CompletionException success) {
4327		assertTrue(success.getCause() instanceof ZeroException);
4328		}
#	Line 4089 | Line 4396 | public class CompletableFutureTest exten
4396
4397		// Some mutually non-commutative functions
4398		Function<Long, CompletableFuture<Long>> triple
4399	<	= (x) -> Monad.unit(3 * x);
4399	>	= x -> Monad.unit(3 * x);
4400		Function<Long, CompletableFuture<Long>> inc
4401	<	= (x) -> Monad.unit(x + 1);
4401	>	= x -> Monad.unit(x + 1);
4402
4403		// unit is a right identity: m >>= unit === m
4404		Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
#	Line 4103 | Line 4410 | public class CompletableFutureTest exten
4410		// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4411		Monad.assertFutureEquals(
4412		unit.apply(5L).thenCompose(inc).thenCompose(triple),
4413	<	unit.apply(5L).thenCompose((x) -> inc.apply(x).thenCompose(triple)));
4413	>	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4414
4415		// The case for CompletableFuture as an additive monad is weaker...
4416
#	Line 4113 | Line 4420 | public class CompletableFutureTest exten
4420		// left zero: zero >>= f === zero
4421		Monad.assertZero(zero.thenCompose(inc));
4422		// right zero: f >>= (\x -> zero) === zero
4423	<	Monad.assertZero(inc.apply(5L).thenCompose((x) -> zero));
4423	>	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4424
4425		// f plus zero === f
4426		Monad.assertFutureEquals(Monad.unit(5L),
#	Line 4139 | Line 4446 | public class CompletableFutureTest exten
4446		Monad.plus(godot, Monad.unit(5L)));
4447		}
4448
4449	+	/** Test long recursive chains of CompletableFutures with cascading completions */
4450	+	@SuppressWarnings("FutureReturnValueIgnored")
4451	+	public void testRecursiveChains() throws Throwable {
4452	+	for (ExecutionMode m : ExecutionMode.values())
4453	+	for (boolean addDeadEnds : new boolean[] { true, false })
4454	+	{
4455	+	final int val = 42;
4456	+	final int n = expensiveTests ? 1_000 : 2;
4457	+	CompletableFuture<Integer> head = new CompletableFuture<>();
4458	+	CompletableFuture<Integer> tail = head;
4459	+	for (int i = 0; i < n; i++) {
4460	+	if (addDeadEnds) m.thenApply(tail, v -> v + 1);
4461	+	tail = m.thenApply(tail, v -> v + 1);
4462	+	if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1);
4463	+	tail = m.applyToEither(tail, tail, v -> v + 1);
4464	+	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1);
4465	+	tail = m.thenCombine(tail, tail, (v, w) -> v + 1);
4466	+	}
4467	+	head.complete(val);
4468	+	assertEquals(val + 3 * n, (int) tail.join());
4469	+	}}
4470	+
4471		/**
4472		* A single CompletableFuture with many dependents.
4473		* A demo of scalability - runtime is O(n).
4474		*/
4475	+	@SuppressWarnings("FutureReturnValueIgnored")
4476		public void testManyDependents() throws Throwable {
4477		final int n = expensiveTests ? 1_000_000 : 10;
4478		final CompletableFuture<Void> head = new CompletableFuture<>();
#	Line 4150 | Line 4480 | public class CompletableFutureTest exten
4480		final AtomicInteger count = new AtomicInteger(0);
4481		for (int i = 0; i < n; i++) {
4482		head.thenRun(() -> count.getAndIncrement());
4483	<	head.thenAccept((x) -> count.getAndIncrement());
4484	<	head.thenApply((x) -> count.getAndIncrement());
4483	>	head.thenAccept(x -> count.getAndIncrement());
4484	>	head.thenApply(x -> count.getAndIncrement());
4485
4486		head.runAfterBoth(complete, () -> count.getAndIncrement());
4487		head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
#	Line 4161 | Line 4491 | public class CompletableFutureTest exten
4491		complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4492
4493		head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4494	<	head.acceptEither(new CompletableFuture<Void>(), (x) -> count.getAndIncrement());
4495	<	head.applyToEither(new CompletableFuture<Void>(), (x) -> count.getAndIncrement());
4494	>	head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4495	>	head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4496		new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4497	<	new CompletableFuture<Void>().acceptEither(head, (x) -> count.getAndIncrement());
4498	<	new CompletableFuture<Void>().applyToEither(head, (x) -> count.getAndIncrement());
4497	>	new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement());
4498	>	new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement());
4499		}
4500		head.complete(null);
4501		assertEquals(5 * 3 * n, count.get());
4502		}
4503
4504		/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4505	+	@SuppressWarnings("FutureReturnValueIgnored")
4506		public void testCoCompletionGarbageRetention() throws Throwable {
4507		final int n = expensiveTests ? 1_000_000 : 10;
4508		final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
#	Line 4182 | Line 4513 | public class CompletableFutureTest exten
4513		f.complete(null);
4514
4515		f = new CompletableFuture<>();
4516	<	f.acceptEither(incomplete, (x) -> {});
4516	>	f.acceptEither(incomplete, x -> {});
4517		f.complete(null);
4518
4519		f = new CompletableFuture<>();
4520	<	f.applyToEither(incomplete, (x) -> x);
4520	>	f.applyToEither(incomplete, x -> x);
4521		f.complete(null);
4522
4523		f = new CompletableFuture<>();
4524	<	CompletableFuture.anyOf(new CompletableFuture<?>[] { f, incomplete });
4524	>	CompletableFuture.anyOf(f, incomplete);
4525		f.complete(null);
4526		}
4527
#	Line 4200 | Line 4531 | public class CompletableFutureTest exten
4531		f.complete(null);
4532
4533		f = new CompletableFuture<>();
4534	<	incomplete.acceptEither(f, (x) -> {});
4534	>	incomplete.acceptEither(f, x -> {});
4535		f.complete(null);
4536
4537		f = new CompletableFuture<>();
4538	<	incomplete.applyToEither(f, (x) -> x);
4538	>	incomplete.applyToEither(f, x -> x);
4539		f.complete(null);
4540
4541		f = new CompletableFuture<>();
4542	<	CompletableFuture.anyOf(new CompletableFuture<?>[] { incomplete, f });
4542	>	CompletableFuture.anyOf(incomplete, f);
4543		f.complete(null);
4544		}
4545		}
4546
4547	<	/*
4548	<	* Tests below currently fail in stress mode due to memory retention.
4549	<	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck
4547	>	/**
4548	>	* Reproduction recipe for:
4549	>	* 8160402: Garbage retention with CompletableFuture.anyOf
4550	>	* 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
4551		*/
4220	–
4221	–	/** Checks for garbage retention with anyOf. */
4552		public void testAnyOfGarbageRetention() throws Throwable {
4553		for (Integer v : new Integer[] { 1, null })
4554		{
#	Line 4232 | Line 4562 | public class CompletableFutureTest exten
4562		checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4563		}}
4564
4565	<	/** Checks for garbage retention with allOf. */
4565	>	/**
4566	>	* Checks for garbage retention with allOf.
4567	>	*
4568	>	* As of 2016-07, fails with OOME:
4569	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4570	>	*/
4571		public void testCancelledAllOfGarbageRetention() throws Throwable {
4572		final int n = expensiveTests ? 100_000 : 10;
4573		CompletableFuture<Integer>[] fs
#	Line 4243 | Line 4578 | public class CompletableFutureTest exten
4578		assertTrue(CompletableFuture.allOf(fs).cancel(false));
4579		}
4580
4581	+	/**
4582	+	* Checks for garbage retention when a dependent future is
4583	+	* cancelled and garbage-collected.
4584	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4585	+	*
4586	+	* As of 2016-07, fails with OOME:
4587	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4588	+	*/
4589	+	public void testCancelledGarbageRetention() throws Throwable {
4590	+	final int n = expensiveTests ? 100_000 : 10;
4591	+	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4592	+	for (int i = 0; i < n; i++)
4593	+	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4594	+	}
4595	+
4596	+	/**
4597	+	* Checks for garbage retention when MinimalStage.toCompletableFuture()
4598	+	* is invoked many times.
4599	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4600	+	*
4601	+	* As of 2016-07, fails with OOME:
4602	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck
4603	+	*/
4604	+	public void testToCompletableFutureGarbageRetention() throws Throwable {
4605	+	final int n = expensiveTests ? 900_000 : 10;
4606	+	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4607	+	CompletionStage minimal = neverCompleted.minimalCompletionStage();
4608	+	for (int i = 0; i < n; i++)
4609	+	assertTrue(minimal.toCompletableFuture().cancel(true));
4610	+	}
4611	+
4612		//     static <U> U join(CompletionStage<U> stage) {
4613		//         CompletableFuture<U> f = new CompletableFuture<>();
4614		//         stage.whenComplete((v, ex) -> {
#	Line 4267 | Line 4633 | public class CompletableFutureTest exten
4633		//         return stage.toCompletableFuture().copy().isDone();
4634		//     }
4635
4636	+	// For testing default implementations
4637	+	// Only non-default interface methods defined.
4638	+	static final class DelegatedCompletionStage<T> implements CompletionStage<T> {
4639	+	final CompletableFuture<T> cf;
4640	+	DelegatedCompletionStage(CompletableFuture<T> cf) { this.cf = cf; }
4641	+	public CompletableFuture<T> toCompletableFuture() {
4642	+	return cf; }
4643	+	public CompletionStage<Void> thenRun
4644	+	(Runnable action) {
4645	+	return cf.thenRun(action); }
4646	+	public CompletionStage<Void> thenRunAsync
4647	+	(Runnable action) {
4648	+	return cf.thenRunAsync(action); }
4649	+	public CompletionStage<Void> thenRunAsync
4650	+	(Runnable action,
4651	+	Executor executor) {
4652	+	return cf.thenRunAsync(action, executor); }
4653	+	public CompletionStage<Void> thenAccept
4654	+	(Consumer<? super T> action) {
4655	+	return cf.thenAccept(action); }
4656	+	public CompletionStage<Void> thenAcceptAsync
4657	+	(Consumer<? super T> action) {
4658	+	return cf.thenAcceptAsync(action); }
4659	+	public CompletionStage<Void> thenAcceptAsync
4660	+	(Consumer<? super T> action,
4661	+	Executor executor) {
4662	+	return cf.thenAcceptAsync(action, executor); }
4663	+	public <U> CompletionStage<U> thenApply
4664	+	(Function<? super T,? extends U> a) {
4665	+	return cf.thenApply(a); }
4666	+	public <U> CompletionStage<U> thenApplyAsync
4667	+	(Function<? super T,? extends U> fn) {
4668	+	return cf.thenApplyAsync(fn); }
4669	+	public <U> CompletionStage<U> thenApplyAsync
4670	+	(Function<? super T,? extends U> fn,
4671	+	Executor executor) {
4672	+	return cf.thenApplyAsync(fn, executor); }
4673	+	public <U,V> CompletionStage<V> thenCombine
4674	+	(CompletionStage<? extends U> other,
4675	+	BiFunction<? super T,? super U,? extends V> fn) {
4676	+	return cf.thenCombine(other, fn); }
4677	+	public <U,V> CompletionStage<V> thenCombineAsync
4678	+	(CompletionStage<? extends U> other,
4679	+	BiFunction<? super T,? super U,? extends V> fn) {
4680	+	return cf.thenCombineAsync(other, fn); }
4681	+	public <U,V> CompletionStage<V> thenCombineAsync
4682	+	(CompletionStage<? extends U> other,
4683	+	BiFunction<? super T,? super U,? extends V> fn,
4684	+	Executor executor) {
4685	+	return cf.thenCombineAsync(other, fn, executor); }
4686	+	public <U> CompletionStage<Void> thenAcceptBoth
4687	+	(CompletionStage<? extends U> other,
4688	+	BiConsumer<? super T, ? super U> action) {
4689	+	return cf.thenAcceptBoth(other, action); }
4690	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4691	+	(CompletionStage<? extends U> other,
4692	+	BiConsumer<? super T, ? super U> action) {
4693	+	return cf.thenAcceptBothAsync(other, action); }
4694	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4695	+	(CompletionStage<? extends U> other,
4696	+	BiConsumer<? super T, ? super U> action,
4697	+	Executor executor) {
4698	+	return cf.thenAcceptBothAsync(other, action, executor); }
4699	+	public CompletionStage<Void> runAfterBoth
4700	+	(CompletionStage<?> other,
4701	+	Runnable action) {
4702	+	return cf.runAfterBoth(other, action); }
4703	+	public CompletionStage<Void> runAfterBothAsync
4704	+	(CompletionStage<?> other,
4705	+	Runnable action) {
4706	+	return cf.runAfterBothAsync(other, action); }
4707	+	public CompletionStage<Void> runAfterBothAsync
4708	+	(CompletionStage<?> other,
4709	+	Runnable action,
4710	+	Executor executor) {
4711	+	return cf.runAfterBothAsync(other, action, executor); }
4712	+	public <U> CompletionStage<U> applyToEither
4713	+	(CompletionStage<? extends T> other,
4714	+	Function<? super T, U> fn) {
4715	+	return cf.applyToEither(other, fn); }
4716	+	public <U> CompletionStage<U> applyToEitherAsync
4717	+	(CompletionStage<? extends T> other,
4718	+	Function<? super T, U> fn) {
4719	+	return cf.applyToEitherAsync(other, fn); }
4720	+	public <U> CompletionStage<U> applyToEitherAsync
4721	+	(CompletionStage<? extends T> other,
4722	+	Function<? super T, U> fn,
4723	+	Executor executor) {
4724	+	return cf.applyToEitherAsync(other, fn, executor); }
4725	+	public CompletionStage<Void> acceptEither
4726	+	(CompletionStage<? extends T> other,
4727	+	Consumer<? super T> action) {
4728	+	return cf.acceptEither(other, action); }
4729	+	public CompletionStage<Void> acceptEitherAsync
4730	+	(CompletionStage<? extends T> other,
4731	+	Consumer<? super T> action) {
4732	+	return cf.acceptEitherAsync(other, action); }
4733	+	public CompletionStage<Void> acceptEitherAsync
4734	+	(CompletionStage<? extends T> other,
4735	+	Consumer<? super T> action,
4736	+	Executor executor) {
4737	+	return cf.acceptEitherAsync(other, action, executor); }
4738	+	public CompletionStage<Void> runAfterEither
4739	+	(CompletionStage<?> other,
4740	+	Runnable action) {
4741	+	return cf.runAfterEither(other, action); }
4742	+	public CompletionStage<Void> runAfterEitherAsync
4743	+	(CompletionStage<?> other,
4744	+	Runnable action) {
4745	+	return cf.runAfterEitherAsync(other, action); }
4746	+	public CompletionStage<Void> runAfterEitherAsync
4747	+	(CompletionStage<?> other,
4748	+	Runnable action,
4749	+	Executor executor) {
4750	+	return cf.runAfterEitherAsync(other, action, executor); }
4751	+	public <U> CompletionStage<U> thenCompose
4752	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4753	+	return cf.thenCompose(fn); }
4754	+	public <U> CompletionStage<U> thenComposeAsync
4755	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4756	+	return cf.thenComposeAsync(fn); }
4757	+	public <U> CompletionStage<U> thenComposeAsync
4758	+	(Function<? super T, ? extends CompletionStage<U>> fn,
4759	+	Executor executor) {
4760	+	return cf.thenComposeAsync(fn, executor); }
4761	+	public <U> CompletionStage<U> handle
4762	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4763	+	return cf.handle(fn); }
4764	+	public <U> CompletionStage<U> handleAsync
4765	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4766	+	return cf.handleAsync(fn); }
4767	+	public <U> CompletionStage<U> handleAsync
4768	+	(BiFunction<? super T, Throwable, ? extends U> fn,
4769	+	Executor executor) {
4770	+	return cf.handleAsync(fn, executor); }
4771	+	public CompletionStage<T> whenComplete
4772	+	(BiConsumer<? super T, ? super Throwable> action) {
4773	+	return cf.whenComplete(action); }
4774	+	public CompletionStage<T> whenCompleteAsync
4775	+	(BiConsumer<? super T, ? super Throwable> action) {
4776	+	return cf.whenCompleteAsync(action); }
4777	+	public CompletionStage<T> whenCompleteAsync
4778	+	(BiConsumer<? super T, ? super Throwable> action,
4779	+	Executor executor) {
4780	+	return cf.whenCompleteAsync(action, executor); }
4781	+	public CompletionStage<T> exceptionally
4782	+	(Function<Throwable, ? extends T> fn) {
4783	+	return cf.exceptionally(fn); }
4784	+	}
4785	+
4786	+	/**
4787	+	* default-implemented exceptionallyAsync action completes with
4788	+	* function value on source exception
4789	+	*/
4790	+	public void testDefaulExceptionallyAsync_exceptionalCompletion() {
4791	+	for (boolean createIncomplete : new boolean[] { true, false })
4792	+	for (Integer v1 : new Integer[] { 1, null })
4793	+	{
4794	+	final AtomicInteger a = new AtomicInteger(0);
4795	+	final CFException ex = new CFException();
4796	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4797	+	final DelegatedCompletionStage<Integer> d =
4798	+	new DelegatedCompletionStage<Integer>(f);
4799	+	if (!createIncomplete) f.completeExceptionally(ex);
4800	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4801	+	((Throwable t) -> {
4802	+	threadAssertSame(t, ex);
4803	+	a.getAndIncrement();
4804	+	return v1;
4805	+	});
4806	+	if (createIncomplete) f.completeExceptionally(ex);
4807	+
4808	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4809	+	assertEquals(1, a.get());
4810	+	}}
4811	+
4812	+	/**
4813	+	* Under default implementation, if an "exceptionally action"
4814	+	* throws an exception, it completes exceptionally with that
4815	+	* exception
4816	+	*/
4817	+	public void testDefaulExceptionallyAsync_exceptionalCompletionActionFailed() {
4818	+	for (boolean createIncomplete : new boolean[] { true, false })
4819	+	{
4820	+	final AtomicInteger a = new AtomicInteger(0);
4821	+	final CFException ex1 = new CFException();
4822	+	final CFException ex2 = new CFException();
4823	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4824	+	final DelegatedCompletionStage<Integer> d =
4825	+	new DelegatedCompletionStage<Integer>(f);
4826	+	if (!createIncomplete) f.completeExceptionally(ex1);
4827	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4828	+	((Throwable t) -> {
4829	+	threadAssertSame(t, ex1);
4830	+	a.getAndIncrement();
4831	+	throw ex2;
4832	+	});
4833	+	if (createIncomplete) f.completeExceptionally(ex1);
4834	+
4835	+	checkCompletedWithWrappedException(g.toCompletableFuture(), ex2);
4836	+	checkCompletedExceptionally(f, ex1);
4837	+	checkCompletedExceptionally(d.toCompletableFuture(), ex1);
4838	+	assertEquals(1, a.get());
4839	+	}}
4840	+
4841	+	/**
4842	+	* defult exceptionallyCompose result completes normally after normal
4843	+	* completion of source
4844	+	*/
4845	+	public void testDefaultExceptionallyCompose_normalCompletion() {
4846	+	for (boolean createIncomplete : new boolean[] { true, false })
4847	+	for (Integer v1 : new Integer[] { 1, null })
4848	+	{
4849	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4850	+	final ExceptionalCompletableFutureFunction r =
4851	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4852	+	final DelegatedCompletionStage<Integer> d =
4853	+	new DelegatedCompletionStage<Integer>(f);
4854	+	if (!createIncomplete) assertTrue(f.complete(v1));
4855	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4856	+	if (createIncomplete) assertTrue(f.complete(v1));
4857	+
4858	+	checkCompletedNormally(f, v1);
4859	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4860	+	r.assertNotInvoked();
4861	+	}}
4862	+
4863	+	/**
4864	+	* default-implemented exceptionallyCompose result completes
4865	+	* normally after exceptional completion of source
4866	+	*/
4867	+	public void testDefaultExceptionallyCompose_exceptionalCompletion() {
4868	+	for (boolean createIncomplete : new boolean[] { true, false })
4869	+	{
4870	+	final CFException ex = new CFException();
4871	+	final ExceptionalCompletableFutureFunction r =
4872	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4873	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4874	+	final DelegatedCompletionStage<Integer> d =
4875	+	new DelegatedCompletionStage<Integer>(f);
4876	+	if (!createIncomplete) f.completeExceptionally(ex);
4877	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4878	+	if (createIncomplete) f.completeExceptionally(ex);
4879	+
4880	+	checkCompletedExceptionally(f, ex);
4881	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
4882	+	r.assertInvoked();
4883	+	}}
4884	+
4885	+	/**
4886	+	* default-implemented exceptionallyCompose completes
4887	+	* exceptionally on exception if action does
4888	+	*/
4889	+	public void testDefaultExceptionallyCompose_actionFailed() {
4890	+	for (boolean createIncomplete : new boolean[] { true, false })
4891	+	for (Integer v1 : new Integer[] { 1, null })
4892	+	{
4893	+	final CFException ex = new CFException();
4894	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4895	+	final FailingExceptionalCompletableFutureFunction r
4896	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4897	+	final DelegatedCompletionStage<Integer> d =
4898	+	new DelegatedCompletionStage<Integer>(f);
4899	+	if (!createIncomplete) f.completeExceptionally(ex);
4900	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4901	+	if (createIncomplete) f.completeExceptionally(ex);
4902	+
4903	+	checkCompletedExceptionally(f, ex);
4904	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4905	+	r.assertInvoked();
4906	+	}}
4907	+
4908	+	/**
4909	+	* defult exceptionallyComposeAsync result completes normally after normal
4910	+	* completion of source
4911	+	*/
4912	+	public void testDefaultExceptionallyComposeAsync_normalCompletion() {
4913	+	for (boolean createIncomplete : new boolean[] { true, false })
4914	+	for (Integer v1 : new Integer[] { 1, null })
4915	+	{
4916	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4917	+	final ExceptionalCompletableFutureFunction r =
4918	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4919	+	final DelegatedCompletionStage<Integer> d =
4920	+	new DelegatedCompletionStage<Integer>(f);
4921	+	if (!createIncomplete) assertTrue(f.complete(v1));
4922	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4923	+	if (createIncomplete) assertTrue(f.complete(v1));
4924	+
4925	+	checkCompletedNormally(f, v1);
4926	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4927	+	r.assertNotInvoked();
4928	+	}}
4929	+
4930	+	/**
4931	+	* default-implemented exceptionallyComposeAsync result completes
4932	+	* normally after exceptional completion of source
4933	+	*/
4934	+	public void testDefaultExceptionallyComposeAsync_exceptionalCompletion() {
4935	+	for (boolean createIncomplete : new boolean[] { true, false })
4936	+	{
4937	+	final CFException ex = new CFException();
4938	+	final ExceptionalCompletableFutureFunction r =
4939	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4940	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4941	+	final DelegatedCompletionStage<Integer> d =
4942	+	new DelegatedCompletionStage<Integer>(f);
4943	+	if (!createIncomplete) f.completeExceptionally(ex);
4944	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4945	+	if (createIncomplete) f.completeExceptionally(ex);
4946	+
4947	+	checkCompletedExceptionally(f, ex);
4948	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
4949	+	r.assertInvoked();
4950	+	}}
4951	+
4952	+	/**
4953	+	* default-implemented exceptionallyComposeAsync completes
4954	+	* exceptionally on exception if action does
4955	+	*/
4956	+	public void testDefaultExceptionallyComposeAsync_actionFailed() {
4957	+	for (boolean createIncomplete : new boolean[] { true, false })
4958	+	for (Integer v1 : new Integer[] { 1, null })
4959	+	{
4960	+	final CFException ex = new CFException();
4961	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4962	+	final FailingExceptionalCompletableFutureFunction r
4963	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4964	+	final DelegatedCompletionStage<Integer> d =
4965	+	new DelegatedCompletionStage<Integer>(f);
4966	+	if (!createIncomplete) f.completeExceptionally(ex);
4967	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4968	+	if (createIncomplete) f.completeExceptionally(ex);
4969	+
4970	+	checkCompletedExceptionally(f, ex);
4971	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4972	+	r.assertInvoked();
4973	+	}}
4974	+
4975	+
4976	+	/**
4977	+	* defult exceptionallyComposeAsync result completes normally after normal
4978	+	* completion of source
4979	+	*/
4980	+	public void testDefaultExceptionallyComposeAsyncExecutor_normalCompletion() {
4981	+	for (boolean createIncomplete : new boolean[] { true, false })
4982	+	for (Integer v1 : new Integer[] { 1, null })
4983	+	{
4984	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4985	+	final ExceptionalCompletableFutureFunction r =
4986	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
4987	+	final DelegatedCompletionStage<Integer> d =
4988	+	new DelegatedCompletionStage<Integer>(f);
4989	+	if (!createIncomplete) assertTrue(f.complete(v1));
4990	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r,  new ThreadExecutor());
4991	+	if (createIncomplete) assertTrue(f.complete(v1));
4992	+
4993	+	checkCompletedNormally(f, v1);
4994	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4995	+	r.assertNotInvoked();
4996	+	}}
4997	+
4998	+	/**
4999	+	* default-implemented exceptionallyComposeAsync result completes
5000	+	* normally after exceptional completion of source
5001	+	*/
5002	+	public void testDefaultExceptionallyComposeAsyncExecutor_exceptionalCompletion() {
5003	+	for (boolean createIncomplete : new boolean[] { true, false })
5004	+	{
5005	+	final CFException ex = new CFException();
5006	+	final ExceptionalCompletableFutureFunction r =
5007	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5008	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5009	+	final DelegatedCompletionStage<Integer> d =
5010	+	new DelegatedCompletionStage<Integer>(f);
5011	+	if (!createIncomplete) f.completeExceptionally(ex);
5012	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r,  new ThreadExecutor());
5013	+	if (createIncomplete) f.completeExceptionally(ex);
5014	+
5015	+	checkCompletedExceptionally(f, ex);
5016	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5017	+	r.assertInvoked();
5018	+	}}
5019	+
5020	+	/**
5021	+	* default-implemented exceptionallyComposeAsync completes
5022	+	* exceptionally on exception if action does
5023	+	*/
5024	+	public void testDefaultExceptionallyComposeAsyncExecutor_actionFailed() {
5025	+	for (boolean createIncomplete : new boolean[] { true, false })
5026	+	for (Integer v1 : new Integer[] { 1, null })
5027	+	{
5028	+	final CFException ex = new CFException();
5029	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5030	+	final FailingExceptionalCompletableFutureFunction r
5031	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5032	+	final DelegatedCompletionStage<Integer> d =
5033	+	new DelegatedCompletionStage<Integer>(f);
5034	+	if (!createIncomplete) f.completeExceptionally(ex);
5035	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r,  new ThreadExecutor());
5036	+	if (createIncomplete) f.completeExceptionally(ex);
5037	+
5038	+	checkCompletedExceptionally(f, ex);
5039	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5040	+	r.assertInvoked();
5041	+	}}
5042	+
5043		}
5044	+

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