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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.178 by jsr166, Wed Sep 21 19:02:50 2016 UTC vs.
Revision 1.186 by jsr166, Mon Jul 3 20:55:45 2017 UTC

#	Line 64 | Line 64 | public class CompletableFutureTest exten
64		assertNull(f.getNow(null));
65		} catch (Throwable fail) { threadUnexpectedException(fail); }
66		try {
67	<	f.get(0L, SECONDS);
67	>	f.get(randomExpiredTimeout(), randomTimeUnit());
68		shouldThrow();
69		}
70		catch (TimeoutException success) {}
#	Line 76 | Line 76 | public class CompletableFutureTest exten
76
77		try {
78		assertEquals(value, f.join());
79	–	} catch (Throwable fail) { threadUnexpectedException(fail); }
80	–	try {
79		assertEquals(value, f.getNow(null));
82	–	} catch (Throwable fail) { threadUnexpectedException(fail); }
83	–	try {
80		assertEquals(value, f.get());
81		} catch (Throwable fail) { threadUnexpectedException(fail); }
82		assertTrue(f.isDone());
#	Line 93 | Line 89 | public class CompletableFutureTest exten
89		* Returns the "raw" internal exceptional completion of f,
90		* without any additional wrapping with CompletionException.
91		*/
92	<	<U> Throwable exceptionalCompletion(CompletableFuture<U> f) {
93	<	// handle (and whenComplete) can distinguish between "direct"
94	<	// and "wrapped" exceptional completion
95	<	return f.handle((U u, Throwable t) -> t).join();
92	>	Throwable exceptionalCompletion(CompletableFuture<?> f) {
93	>	// handle (and whenComplete and exceptionally) can distinguish
94	>	// between "direct" and "wrapped" exceptional completion
95	>	return f.handle((u, t) -> t).join();
96		}
97
98		void checkCompletedExceptionally(CompletableFuture<?> f,
#	Line 147 | Line 143 | public class CompletableFutureTest exten
143
144		void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
145		checkCompletedExceptionally(f, true,
146	<	(t) -> assertTrue(t instanceof CFException));
146	>	t -> assertTrue(t instanceof CFException));
147		}
148
149		void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
150		checkCompletedExceptionally(f, true,
151	<	(t) -> assertTrue(t instanceof CancellationException));
151	>	t -> assertTrue(t instanceof CancellationException));
152		}
153
154		void checkCompletedWithTimeoutException(CompletableFuture<?> f) {
155		checkCompletedExceptionally(f, false,
156	<	(t) -> assertTrue(t instanceof TimeoutException));
156	>	t -> assertTrue(t instanceof TimeoutException));
157		}
158
159		void checkCompletedWithWrappedException(CompletableFuture<?> f,
160		Throwable ex) {
161	<	checkCompletedExceptionally(f, true, (t) -> assertSame(t, ex));
161	>	checkCompletedExceptionally(f, true, t -> assertSame(t, ex));
162		}
163
164		void checkCompletedExceptionally(CompletableFuture<?> f, Throwable ex) {
165	<	checkCompletedExceptionally(f, false, (t) -> assertSame(t, ex));
165	>	checkCompletedExceptionally(f, false, t -> assertSame(t, ex));
166		}
167
168		void checkCancelled(CompletableFuture<?> f) {
#	Line 2562 | Line 2558 | public class CompletableFutureTest exten
2558
2559		// unspecified behavior - both source completions available
2560		try {
2561	<	assertEquals(null, h0.join());
2561	>	assertNull(h0.join());
2562		rs[0].assertValue(v1);
2563		} catch (CompletionException ok) {
2564		checkCompletedWithWrappedException(h0, ex);
2565		rs[0].assertNotInvoked();
2566		}
2567		try {
2568	<	assertEquals(null, h1.join());
2568	>	assertNull(h1.join());
2569		rs[1].assertValue(v1);
2570		} catch (CompletionException ok) {
2571		checkCompletedWithWrappedException(h1, ex);
2572		rs[1].assertNotInvoked();
2573		}
2574		try {
2575	<	assertEquals(null, h2.join());
2575	>	assertNull(h2.join());
2576		rs[2].assertValue(v1);
2577		} catch (CompletionException ok) {
2578		checkCompletedWithWrappedException(h2, ex);
2579		rs[2].assertNotInvoked();
2580		}
2581		try {
2582	<	assertEquals(null, h3.join());
2582	>	assertNull(h3.join());
2583		rs[3].assertValue(v1);
2584		} catch (CompletionException ok) {
2585		checkCompletedWithWrappedException(h3, ex);
#	Line 2822 | Line 2818 | public class CompletableFutureTest exten
2818
2819		// unspecified behavior - both source completions available
2820		try {
2821	<	assertEquals(null, h0.join());
2821	>	assertNull(h0.join());
2822		rs[0].assertInvoked();
2823		} catch (CompletionException ok) {
2824		checkCompletedWithWrappedException(h0, ex);
2825		rs[0].assertNotInvoked();
2826		}
2827		try {
2828	<	assertEquals(null, h1.join());
2828	>	assertNull(h1.join());
2829		rs[1].assertInvoked();
2830		} catch (CompletionException ok) {
2831		checkCompletedWithWrappedException(h1, ex);
2832		rs[1].assertNotInvoked();
2833		}
2834		try {
2835	<	assertEquals(null, h2.join());
2835	>	assertNull(h2.join());
2836		rs[2].assertInvoked();
2837		} catch (CompletionException ok) {
2838		checkCompletedWithWrappedException(h2, ex);
2839		rs[2].assertNotInvoked();
2840		}
2841		try {
2842	<	assertEquals(null, h3.join());
2842	>	assertNull(h3.join());
2843		rs[3].assertInvoked();
2844		} catch (CompletionException ok) {
2845		checkCompletedWithWrappedException(h3, ex);
#	Line 3238 | Line 3234 | public class CompletableFutureTest exten
3234		/**
3235		* Completion methods throw NullPointerException with null arguments
3236		*/
3237	+	@SuppressWarnings("FutureReturnValueIgnored")
3238		public void testNPE() {
3239		CompletableFuture<Integer> f = new CompletableFuture<>();
3240		CompletableFuture<Integer> g = new CompletableFuture<>();
#	Line 3257 | Line 3254 | public class CompletableFutureTest exten
3254
3255		() -> f.thenApply(null),
3256		() -> f.thenApplyAsync(null),
3257	<	() -> f.thenApplyAsync((x) -> x, null),
3257	>	() -> f.thenApplyAsync(x -> x, null),
3258		() -> f.thenApplyAsync(null, exec),
3259
3260		() -> f.thenAccept(null),
3261		() -> f.thenAcceptAsync(null),
3262	<	() -> f.thenAcceptAsync((x) -> {} , null),
3262	>	() -> f.thenAcceptAsync(x -> {} , null),
3263		() -> f.thenAcceptAsync(null, exec),
3264
3265		() -> f.thenRun(null),
#	Line 3297 | Line 3294 | public class CompletableFutureTest exten
3294		() -> f.applyToEither(g, null),
3295		() -> f.applyToEitherAsync(g, null),
3296		() -> f.applyToEitherAsync(g, null, exec),
3297	<	() -> f.applyToEither(nullFuture, (x) -> x),
3298	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x),
3299	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
3300	<	() -> f.applyToEitherAsync(g, (x) -> x, null),
3297	>	() -> f.applyToEither(nullFuture, x -> x),
3298	>	() -> f.applyToEitherAsync(nullFuture, x -> x),
3299	>	() -> f.applyToEitherAsync(nullFuture, x -> x, exec),
3300	>	() -> f.applyToEitherAsync(g, x -> x, null),
3301
3302		() -> f.acceptEither(g, null),
3303		() -> f.acceptEitherAsync(g, null),
3304		() -> f.acceptEitherAsync(g, null, exec),
3305	<	() -> f.acceptEither(nullFuture, (x) -> {}),
3306	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}),
3307	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
3308	<	() -> f.acceptEitherAsync(g, (x) -> {}, null),
3305	>	() -> f.acceptEither(nullFuture, x -> {}),
3306	>	() -> f.acceptEitherAsync(nullFuture, x -> {}),
3307	>	() -> f.acceptEitherAsync(nullFuture, x -> {}, exec),
3308	>	() -> f.acceptEitherAsync(g, x -> {}, null),
3309
3310		() -> f.runAfterEither(g, null),
3311		() -> f.runAfterEitherAsync(g, null),
#	Line 3374 | Line 3371 | public class CompletableFutureTest exten
3371		for (CompletableFuture<Integer> src : srcs) {
3372		List<CompletableFuture<?>> fs = new ArrayList<>();
3373		fs.add(src.thenRunAsync(() -> {}, e));
3374	<	fs.add(src.thenAcceptAsync((z) -> {}, e));
3375	<	fs.add(src.thenApplyAsync((z) -> z, e));
3374	>	fs.add(src.thenAcceptAsync(z -> {}, e));
3375	>	fs.add(src.thenApplyAsync(z -> z, e));
3376
3377		fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3378		fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3379		fs.add(src.runAfterBothAsync(src, () -> {}, e));
3380
3381	<	fs.add(src.applyToEitherAsync(src, (z) -> z, e));
3382	<	fs.add(src.acceptEitherAsync(src, (z) -> {}, e));
3381	>	fs.add(src.applyToEitherAsync(src, z -> z, e));
3382	>	fs.add(src.acceptEitherAsync(src, z -> {}, e));
3383		fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3384
3385	<	fs.add(src.thenComposeAsync((z) -> null, e));
3385	>	fs.add(src.thenComposeAsync(z -> null, e));
3386		fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3387		fs.add(src.handleAsync((z, t) -> null, e));
3388
#	Line 3418 | Line 3415 | public class CompletableFutureTest exten
3415		{
3416		List<CompletableFuture<?>> fs = new ArrayList<>();
3417
3418	<	fs.add(complete.applyToEitherAsync(incomplete, (z) -> z, e));
3419	<	fs.add(incomplete.applyToEitherAsync(complete, (z) -> z, e));
3418	>	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3419	>	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3420
3421	<	fs.add(complete.acceptEitherAsync(incomplete, (z) -> {}, e));
3422	<	fs.add(incomplete.acceptEitherAsync(complete, (z) -> {}, e));
3421	>	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3422	>	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3423
3424		fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3425		fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
#	Line 3461 | Line 3458 | public class CompletableFutureTest exten
3458
3459		List<CompletableFuture<?>> fs = new ArrayList<>();
3460		fs.add(incomplete.thenRunAsync(() -> {}, e));
3461	<	fs.add(incomplete.thenAcceptAsync((z) -> {}, e));
3462	<	fs.add(incomplete.thenApplyAsync((z) -> z, e));
3461	>	fs.add(incomplete.thenAcceptAsync(z -> {}, e));
3462	>	fs.add(incomplete.thenApplyAsync(z -> z, e));
3463
3464		fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3465		fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3466		fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3467
3468	<	fs.add(incomplete.applyToEitherAsync(incomplete, (z) -> z, e));
3469	<	fs.add(incomplete.acceptEitherAsync(incomplete, (z) -> {}, e));
3468	>	fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e));
3469	>	fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e));
3470		fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3471
3472	<	fs.add(incomplete.thenComposeAsync((z) -> null, e));
3472	>	fs.add(incomplete.thenComposeAsync(z -> null, e));
3473		fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3474		fs.add(incomplete.handleAsync((z, t) -> null, e));
3475
#	Line 3532 | Line 3529 | public class CompletableFutureTest exten
3529		*/
3530		public void testCompletedStage() {
3531		AtomicInteger x = new AtomicInteger(0);
3532	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3532	>	AtomicReference<Throwable> r = new AtomicReference<>();
3533		CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3534		f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3535		assertEquals(x.get(), 1);
#	Line 3634 | Line 3631 | public class CompletableFutureTest exten
3631		CompletableFuture<Integer> f = new CompletableFuture<>();
3632		CompletionStage<Integer> g = f.minimalCompletionStage();
3633		AtomicInteger x = new AtomicInteger(0);
3634	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3634	>	AtomicReference<Throwable> r = new AtomicReference<>();
3635		checkIncomplete(f);
3636		g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3637		f.complete(1);
#	Line 3651 | Line 3648 | public class CompletableFutureTest exten
3648		CompletableFuture<Integer> f = new CompletableFuture<>();
3649		CompletionStage<Integer> g = f.minimalCompletionStage();
3650		AtomicInteger x = new AtomicInteger(0);
3651	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3651	>	AtomicReference<Throwable> r = new AtomicReference<>();
3652		g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3653		checkIncomplete(f);
3654		CFException ex = new CFException();
#	Line 3669 | Line 3666 | public class CompletableFutureTest exten
3666		CFException ex = new CFException();
3667		CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3668		AtomicInteger x = new AtomicInteger(0);
3669	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3669	>	AtomicReference<Throwable> r = new AtomicReference<>();
3670		f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3671		assertEquals(x.get(), 0);
3672		assertEquals(r.get(), ex);
#	Line 3693 | Line 3690 | public class CompletableFutureTest exten
3690		public void testCompleteAsync2() {
3691		CompletableFuture<Integer> f = new CompletableFuture<>();
3692		CFException ex = new CFException();
3693	<	f.completeAsync(() -> {if (true) throw ex; return 1;});
3693	>	f.completeAsync(() -> { throw ex; });
3694		try {
3695		f.join();
3696		shouldThrow();
#	Line 3723 | Line 3720 | public class CompletableFutureTest exten
3720		CompletableFuture<Integer> f = new CompletableFuture<>();
3721		CFException ex = new CFException();
3722		ThreadExecutor executor = new ThreadExecutor();
3723	<	f.completeAsync(() -> {if (true) throw ex; return 1;}, executor);
3723	>	f.completeAsync(() -> { throw ex; }, executor);
3724		try {
3725		f.join();
3726		shouldThrow();
#	Line 3882 | Line 3879 | public class CompletableFutureTest exten
3879		List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
3880		= new ArrayList<>();
3881
3882	<	funs.add((y) -> m.thenRun(y, noopRunnable));
3883	<	funs.add((y) -> m.thenAccept(y, noopConsumer));
3884	<	funs.add((y) -> m.thenApply(y, incFunction));
3885	<
3886	<	funs.add((y) -> m.runAfterEither(y, incomplete, noopRunnable));
3887	<	funs.add((y) -> m.acceptEither(y, incomplete, noopConsumer));
3888	<	funs.add((y) -> m.applyToEither(y, incomplete, incFunction));
3889	<
3890	<	funs.add((y) -> m.runAfterBoth(y, v42, noopRunnable));
3891	<	funs.add((y) -> m.runAfterBoth(v42, y, noopRunnable));
3892	<	funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3893	<	funs.add((y) -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
3894	<	funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
3895	<	funs.add((y) -> m.thenCombine(v42, y, new SubtractFunction(m)));
3896	<
3897	<	funs.add((y) -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
3898	<
3899	<	funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
3900	<
3901	<	funs.add((y) -> CompletableFuture.allOf(y));
3902	<	funs.add((y) -> CompletableFuture.allOf(y, v42));
3903	<	funs.add((y) -> CompletableFuture.allOf(v42, y));
3904	<	funs.add((y) -> CompletableFuture.anyOf(y));
3905	<	funs.add((y) -> CompletableFuture.anyOf(y, incomplete));
3906	<	funs.add((y) -> CompletableFuture.anyOf(incomplete, y));
3882	>	funs.add(y -> m.thenRun(y, noopRunnable));
3883	>	funs.add(y -> m.thenAccept(y, noopConsumer));
3884	>	funs.add(y -> m.thenApply(y, incFunction));
3885	>
3886	>	funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable));
3887	>	funs.add(y -> m.acceptEither(y, incomplete, noopConsumer));
3888	>	funs.add(y -> m.applyToEither(y, incomplete, incFunction));
3889	>
3890	>	funs.add(y -> m.runAfterBoth(y, v42, noopRunnable));
3891	>	funs.add(y -> m.runAfterBoth(v42, y, noopRunnable));
3892	>	funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3893	>	funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
3894	>	funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m)));
3895	>	funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m)));
3896	>
3897	>	funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
3898	>
3899	>	funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m)));
3900	>
3901	>	funs.add(y -> CompletableFuture.allOf(y));
3902	>	funs.add(y -> CompletableFuture.allOf(y, v42));
3903	>	funs.add(y -> CompletableFuture.allOf(v42, y));
3904	>	funs.add(y -> CompletableFuture.anyOf(y));
3905	>	funs.add(y -> CompletableFuture.anyOf(y, incomplete));
3906	>	funs.add(y -> CompletableFuture.anyOf(incomplete, y));
3907
3908		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3909		fun : funs) {
#	Line 3963 | Line 3960 | public class CompletableFutureTest exten
3960		public void testMinimalCompletionStage_minimality() {
3961		if (!testImplementationDetails) return;
3962		Function<Method, String> toSignature =
3963	<	(method) -> method.getName() + Arrays.toString(method.getParameterTypes());
3963	>	method -> method.getName() + Arrays.toString(method.getParameterTypes());
3964		Predicate<Method> isNotStatic =
3965	<	(method) -> (method.getModifiers() & Modifier.STATIC) == 0;
3965	>	method -> (method.getModifiers() & Modifier.STATIC) == 0;
3966		List<Method> minimalMethods =
3967		Stream.of(Object.class, CompletionStage.class)
3968	<	.flatMap((klazz) -> Stream.of(klazz.getMethods()))
3968	>	.flatMap(klazz -> Stream.of(klazz.getMethods()))
3969		.filter(isNotStatic)
3970		.collect(Collectors.toList());
3971		// Methods from CompletableFuture permitted NOT to throw UOE
#	Line 3984 | Line 3981 | public class CompletableFutureTest exten
3981		.collect(Collectors.toSet());
3982		List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
3983		.filter(isNotStatic)
3984	<	.filter((method) -> !permittedMethodSignatures.contains(toSignature.apply(method)))
3984	>	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
3985		.collect(Collectors.toList());
3986
3987		List<CompletionStage<Integer>> stages = new ArrayList<>();
#	Line 4144 | Line 4141 | public class CompletableFutureTest exten
4141		CompletionStage<Integer> minimal = f.minimalCompletionStage();
4142		CompletableFuture<Integer> g = new CompletableFuture<>();
4143		if (!createIncomplete) assertTrue(f.complete(v1));
4144	<	minimal.thenAccept((x) -> g.complete(x));
4144	>	minimal.thenAccept(x -> g.complete(x));
4145		if (createIncomplete) assertTrue(f.complete(v1));
4146		g.join();
4147		checkCompletedNormally(g, v1);
#	Line 4168 | Line 4165 | public class CompletableFutureTest exten
4165		static <T,U,V> Function<T, CompletableFuture<V>> compose
4166		(Function<T, CompletableFuture<U>> f,
4167		Function<U, CompletableFuture<V>> g) {
4168	<	return (x) -> f.apply(x).thenCompose(g);
4168	>	return x -> f.apply(x).thenCompose(g);
4169		}
4170
4171		static void assertZero(CompletableFuture<?> f) {
#	Line 4248 | Line 4245 | public class CompletableFutureTest exten
4245
4246		// Some mutually non-commutative functions
4247		Function<Long, CompletableFuture<Long>> triple
4248	<	= (x) -> Monad.unit(3 * x);
4248	>	= x -> Monad.unit(3 * x);
4249		Function<Long, CompletableFuture<Long>> inc
4250	<	= (x) -> Monad.unit(x + 1);
4250	>	= x -> Monad.unit(x + 1);
4251
4252		// unit is a right identity: m >>= unit === m
4253		Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
#	Line 4262 | Line 4259 | public class CompletableFutureTest exten
4259		// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4260		Monad.assertFutureEquals(
4261		unit.apply(5L).thenCompose(inc).thenCompose(triple),
4262	<	unit.apply(5L).thenCompose((x) -> inc.apply(x).thenCompose(triple)));
4262	>	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4263
4264		// The case for CompletableFuture as an additive monad is weaker...
4265
#	Line 4272 | Line 4269 | public class CompletableFutureTest exten
4269		// left zero: zero >>= f === zero
4270		Monad.assertZero(zero.thenCompose(inc));
4271		// right zero: f >>= (\x -> zero) === zero
4272	<	Monad.assertZero(inc.apply(5L).thenCompose((x) -> zero));
4272	>	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4273
4274		// f plus zero === f
4275		Monad.assertFutureEquals(Monad.unit(5L),
#	Line 4330 | Line 4327 | public class CompletableFutureTest exten
4327		final AtomicInteger count = new AtomicInteger(0);
4328		for (int i = 0; i < n; i++) {
4329		head.thenRun(() -> count.getAndIncrement());
4330	<	head.thenAccept((x) -> count.getAndIncrement());
4331	<	head.thenApply((x) -> count.getAndIncrement());
4330	>	head.thenAccept(x -> count.getAndIncrement());
4331	>	head.thenApply(x -> count.getAndIncrement());
4332
4333		head.runAfterBoth(complete, () -> count.getAndIncrement());
4334		head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
#	Line 4341 | Line 4338 | public class CompletableFutureTest exten
4338		complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4339
4340		head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4341	<	head.acceptEither(new CompletableFuture<Void>(), (x) -> count.getAndIncrement());
4342	<	head.applyToEither(new CompletableFuture<Void>(), (x) -> count.getAndIncrement());
4341	>	head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4342	>	head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4343		new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4344	<	new CompletableFuture<Void>().acceptEither(head, (x) -> count.getAndIncrement());
4345	<	new CompletableFuture<Void>().applyToEither(head, (x) -> count.getAndIncrement());
4344	>	new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement());
4345	>	new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement());
4346		}
4347		head.complete(null);
4348		assertEquals(5 * 3 * n, count.get());
#	Line 4362 | Line 4359 | public class CompletableFutureTest exten
4359		f.complete(null);
4360
4361		f = new CompletableFuture<>();
4362	<	f.acceptEither(incomplete, (x) -> {});
4362	>	f.acceptEither(incomplete, x -> {});
4363		f.complete(null);
4364
4365		f = new CompletableFuture<>();
4366	<	f.applyToEither(incomplete, (x) -> x);
4366	>	f.applyToEither(incomplete, x -> x);
4367		f.complete(null);
4368
4369		f = new CompletableFuture<>();
#	Line 4380 | Line 4377 | public class CompletableFutureTest exten
4377		f.complete(null);
4378
4379		f = new CompletableFuture<>();
4380	<	incomplete.acceptEither(f, (x) -> {});
4380	>	incomplete.acceptEither(f, x -> {});
4381		f.complete(null);
4382
4383		f = new CompletableFuture<>();
4384	<	incomplete.applyToEither(f, (x) -> x);
4384	>	incomplete.applyToEither(f, x -> x);
4385		f.complete(null);
4386
4387		f = new CompletableFuture<>();
#	Line 4442 | Line 4439 | public class CompletableFutureTest exten
4439		assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4440		}
4441
4442	+	/**
4443	+	* Checks for garbage retention when MinimalStage.toCompletableFuture()
4444	+	* is invoked many times.
4445	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4446	+	*
4447	+	* As of 2016-07, fails with OOME:
4448	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck
4449	+	*/
4450	+	public void testToCompletableFutureGarbageRetention() throws Throwable {
4451	+	final int n = expensiveTests ? 900_000 : 10;
4452	+	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4453	+	CompletionStage minimal = neverCompleted.minimalCompletionStage();
4454	+	for (int i = 0; i < n; i++)
4455	+	assertTrue(minimal.toCompletableFuture().cancel(true));
4456	+	}
4457	+
4458		//     static <U> U join(CompletionStage<U> stage) {
4459		//         CompletableFuture<U> f = new CompletableFuture<>();
4460		//         stage.whenComplete((v, ex) -> {

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