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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.184 by jsr166, Sat Mar 18 20:42:20 2017 UTC vs.
Revision 1.209 by jsr166, Sun Sep 23 17:02:24 2018 UTC

#	Line 41 | Line 41 | import java.util.function.Function;
41		import java.util.function.Predicate;
42		import java.util.function.Supplier;
43
44	–	import junit.framework.AssertionFailedError;
44		import junit.framework.Test;
45		import junit.framework.TestSuite;
46
#	Line 59 | Line 58 | public class CompletableFutureTest exten
58		void checkIncomplete(CompletableFuture<?> f) {
59		assertFalse(f.isDone());
60		assertFalse(f.isCancelled());
61	<	assertTrue(f.toString().contains("Not completed"));
61	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
62	>
63	>	Object result = null;
64		try {
65	<	assertNull(f.getNow(null));
65	>	result = f.getNow(null);
66		} catch (Throwable fail) { threadUnexpectedException(fail); }
67	+	assertNull(result);
68	+
69		try {
70	<	f.get(0L, SECONDS);
70	>	f.get(randomExpiredTimeout(), randomTimeUnit());
71		shouldThrow();
72		}
73		catch (TimeoutException success) {}
74		catch (Throwable fail) { threadUnexpectedException(fail); }
75		}
76
77	<	<T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
78	<	checkTimedGet(f, value);
77	>	<T> void checkCompletedNormally(CompletableFuture<T> f, T expectedValue) {
78	>	checkTimedGet(f, expectedValue);
79
80	+	assertEquals(expectedValue, f.join());
81	+	assertEquals(expectedValue, f.getNow(null));
82	+
83	+	T result = null;
84		try {
85	<	assertEquals(value, f.join());
79	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
80	<	try {
81	<	assertEquals(value, f.getNow(null));
82	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
83	<	try {
84	<	assertEquals(value, f.get());
85	>	result = f.get();
86		} catch (Throwable fail) { threadUnexpectedException(fail); }
87	+	assertEquals(expectedValue, result);
88	+
89		assertTrue(f.isDone());
90		assertFalse(f.isCancelled());
91		assertFalse(f.isCompletedExceptionally());
92	<	assertTrue(f.toString().contains("[Completed normally]"));
92	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
93		}
94
95		/**
#	Line 142 | Line 145 | public class CompletableFutureTest exten
145		assertFalse(f.isCancelled());
146		assertTrue(f.isDone());
147		assertTrue(f.isCompletedExceptionally());
148	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
148	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
149		}
150
151		void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
#	Line 197 | Line 200 | public class CompletableFutureTest exten
200		assertTrue(f.isDone());
201		assertTrue(f.isCompletedExceptionally());
202		assertTrue(f.isCancelled());
203	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
203	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
204		}
205
206		/**
#	Line 296 | Line 299 | public class CompletableFutureTest exten
299		}
300
301		f = new CompletableFuture<>();
302	<	f.completeExceptionally(ex = new CFException());
302	>	f.completeExceptionally(new CFException());
303		f.obtrudeValue(v1);
304		checkCompletedNormally(f, v1);
305		f.obtrudeException(ex = new CFException());
#	Line 333 | Line 336 | public class CompletableFutureTest exten
336		/**
337		* toString indicates current completion state
338		*/
339	<	public void testToString() {
340	<	CompletableFuture<String> f;
341	<
342	<	f = new CompletableFuture<String>();
343	<	assertTrue(f.toString().contains("[Not completed]"));
339	>	public void testToString_incomplete() {
340	>	CompletableFuture<String> f = new CompletableFuture<>();
341	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
342	>	if (testImplementationDetails)
343	>	assertEquals(identityString(f) + "[Not completed]",
344	>	f.toString());
345	>	}
346
347	+	public void testToString_normal() {
348	+	CompletableFuture<String> f = new CompletableFuture<>();
349		assertTrue(f.complete("foo"));
350	<	assertTrue(f.toString().contains("[Completed normally]"));
350	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
351	>	if (testImplementationDetails)
352	>	assertEquals(identityString(f) + "[Completed normally]",
353	>	f.toString());
354	>	}
355
356	<	f = new CompletableFuture<String>();
356	>	public void testToString_exception() {
357	>	CompletableFuture<String> f = new CompletableFuture<>();
358		assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
359	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
359	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
360	>	if (testImplementationDetails)
361	>	assertTrue(f.toString().startsWith(
362	>	identityString(f) + "[Completed exceptionally: "));
363	>	}
364
365	+	public void testToString_cancelled() {
366		for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
367	<	f = new CompletableFuture<String>();
367	>	CompletableFuture<String> f = new CompletableFuture<>();
368		assertTrue(f.cancel(mayInterruptIfRunning));
369	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
369	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
370	>	if (testImplementationDetails)
371	>	assertTrue(f.toString().startsWith(
372	>	identityString(f) + "[Completed exceptionally: "));
373		}
374		}
375
#	Line 531 | Line 551 | public class CompletableFutureTest exten
551		public CompletableFuture<Integer> apply(Integer x) {
552		invoked();
553		value = x;
554	<	CompletableFuture<Integer> f = new CompletableFuture<>();
555	<	assertTrue(f.complete(inc(x)));
556	<	return f;
554	>	return CompletableFuture.completedFuture(inc(x));
555	>	}
556	>	}
557	>
558	>	static class FailingExceptionalCompletableFutureFunction extends CheckedAction
559	>	implements Function<Throwable, CompletableFuture<Integer>>
560	>	{
561	>	final CFException ex;
562	>	FailingExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
563	>	public CompletableFuture<Integer> apply(Throwable x) {
564	>	invoked();
565	>	throw ex;
566	>	}
567	>	}
568	>
569	>	static class ExceptionalCompletableFutureFunction extends CheckedAction
570	>	implements Function<Throwable, CompletionStage<Integer>> {
571	>	final Integer value = 3;
572	>	ExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); }
573	>	public CompletionStage<Integer> apply(Throwable x) {
574	>	invoked();
575	>	return CompletableFuture.completedFuture(value);
576		}
577		}
578
#	Line 652 | Line 691 | public class CompletableFutureTest exten
691		Function<? super T,U> a) {
692		return f.applyToEither(g, a);
693		}
694	+	public <T> CompletableFuture<T> exceptionally
695	+	(CompletableFuture<T> f,
696	+	Function<Throwable, ? extends T> fn) {
697	+	return f.exceptionally(fn);
698	+	}
699	+	public <T> CompletableFuture<T> exceptionallyCompose
700	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
701	+	return f.exceptionallyCompose(fn);
702	+	}
703		},
656	–
704		ASYNC {
705		public void checkExecutionMode() {
706		assertEquals(defaultExecutorIsCommonPool,
#	Line 726 | Line 773 | public class CompletableFutureTest exten
773		Function<? super T,U> a) {
774		return f.applyToEitherAsync(g, a);
775		}
776	+	public <T> CompletableFuture<T> exceptionally
777	+	(CompletableFuture<T> f,
778	+	Function<Throwable, ? extends T> fn) {
779	+	return f.exceptionallyAsync(fn);
780	+	}
781	+
782	+	public <T> CompletableFuture<T> exceptionallyCompose
783	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
784	+	return f.exceptionallyComposeAsync(fn);
785	+	}
786	+
787		},
788
789		EXECUTOR {
#	Line 799 | Line 857 | public class CompletableFutureTest exten
857		Function<? super T,U> a) {
858		return f.applyToEitherAsync(g, a, new ThreadExecutor());
859		}
860	+	public <T> CompletableFuture<T> exceptionally
861	+	(CompletableFuture<T> f,
862	+	Function<Throwable, ? extends T> fn) {
863	+	return f.exceptionallyAsync(fn, new ThreadExecutor());
864	+	}
865	+	public <T> CompletableFuture<T> exceptionallyCompose
866	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
867	+	return f.exceptionallyComposeAsync(fn, new ThreadExecutor());
868	+	}
869	+
870		};
871
872		public abstract void checkExecutionMode();
#	Line 841 | Line 909 | public class CompletableFutureTest exten
909		(CompletableFuture<T> f,
910		CompletionStage<? extends T> g,
911		Function<? super T,U> a);
912	+	public abstract <T> CompletableFuture<T> exceptionally
913	+	(CompletableFuture<T> f,
914	+	Function<Throwable, ? extends T> fn);
915	+	public abstract <T> CompletableFuture<T> exceptionallyCompose
916	+	(CompletableFuture<T> f,
917	+	Function<Throwable, ? extends CompletionStage<T>> fn);
918		}
919
920		/**
#	Line 848 | Line 922 | public class CompletableFutureTest exten
922		* normally, and source result is propagated
923		*/
924		public void testExceptionally_normalCompletion() {
925	+	for (ExecutionMode m : ExecutionMode.values())
926		for (boolean createIncomplete : new boolean[] { true, false })
927		for (Integer v1 : new Integer[] { 1, null })
928		{
854	–	final AtomicInteger a = new AtomicInteger(0);
929		final CompletableFuture<Integer> f = new CompletableFuture<>();
930		if (!createIncomplete) assertTrue(f.complete(v1));
931	<	final CompletableFuture<Integer> g = f.exceptionally
932	<	((Throwable t) -> {
859	<	a.getAndIncrement();
931	>	final CompletableFuture<Integer> g = m.exceptionally
932	>	(f, (Throwable t) -> {
933		threadFail("should not be called");
934		return null;            // unreached
935		});
#	Line 864 | Line 937 | public class CompletableFutureTest exten
937
938		checkCompletedNormally(g, v1);
939		checkCompletedNormally(f, v1);
867	–	assertEquals(0, a.get());
940		}}
941
942		/**
#	Line 872 | Line 944 | public class CompletableFutureTest exten
944		* exception
945		*/
946		public void testExceptionally_exceptionalCompletion() {
947	+	for (ExecutionMode m : ExecutionMode.values())
948		for (boolean createIncomplete : new boolean[] { true, false })
949		for (Integer v1 : new Integer[] { 1, null })
950		{
#	Line 879 | Line 952 | public class CompletableFutureTest exten
952		final CFException ex = new CFException();
953		final CompletableFuture<Integer> f = new CompletableFuture<>();
954		if (!createIncomplete) f.completeExceptionally(ex);
955	<	final CompletableFuture<Integer> g = f.exceptionally
956	<	((Throwable t) -> {
957	<	ExecutionMode.SYNC.checkExecutionMode();
955	>	final CompletableFuture<Integer> g = m.exceptionally
956	>	(f, (Throwable t) -> {
957	>	m.checkExecutionMode();
958		threadAssertSame(t, ex);
959		a.getAndIncrement();
960		return v1;
#	Line 897 | Line 970 | public class CompletableFutureTest exten
970		* exceptionally with that exception
971		*/
972		public void testExceptionally_exceptionalCompletionActionFailed() {
973	+	for (ExecutionMode m : ExecutionMode.values())
974		for (boolean createIncomplete : new boolean[] { true, false })
975		{
976		final AtomicInteger a = new AtomicInteger(0);
#	Line 904 | Line 978 | public class CompletableFutureTest exten
978		final CFException ex2 = new CFException();
979		final CompletableFuture<Integer> f = new CompletableFuture<>();
980		if (!createIncomplete) f.completeExceptionally(ex1);
981	<	final CompletableFuture<Integer> g = f.exceptionally
982	<	((Throwable t) -> {
983	<	ExecutionMode.SYNC.checkExecutionMode();
981	>	final CompletableFuture<Integer> g = m.exceptionally
982	>	(f, (Throwable t) -> {
983	>	m.checkExecutionMode();
984		threadAssertSame(t, ex1);
985		a.getAndIncrement();
986		throw ex2;
#	Line 1242 | Line 1316 | public class CompletableFutureTest exten
1316		r.assertInvoked();
1317		}}
1318
1319	+	@SuppressWarnings("FutureReturnValueIgnored")
1320		public void testRunAsync_rejectingExecutor() {
1321		CountingRejectingExecutor e = new CountingRejectingExecutor();
1322		try {
#	Line 1288 | Line 1363 | public class CompletableFutureTest exten
1363		r.assertInvoked();
1364		}}
1365
1366	+	@SuppressWarnings("FutureReturnValueIgnored")
1367		public void testSupplyAsync_rejectingExecutor() {
1368		CountingRejectingExecutor e = new CountingRejectingExecutor();
1369		try {
#	Line 3075 | Line 3151 | public class CompletableFutureTest exten
3151		checkCompletedNormally(f, v1);
3152		}}
3153
3154	+	/**
3155	+	* exceptionallyCompose result completes normally after normal
3156	+	* completion of source
3157	+	*/
3158	+	public void testExceptionallyCompose_normalCompletion() {
3159	+	for (ExecutionMode m : ExecutionMode.values())
3160	+	for (boolean createIncomplete : new boolean[] { true, false })
3161	+	for (Integer v1 : new Integer[] { 1, null })
3162	+	{
3163	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3164	+	final ExceptionalCompletableFutureFunction r =
3165	+	new ExceptionalCompletableFutureFunction(m);
3166	+	if (!createIncomplete) assertTrue(f.complete(v1));
3167	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3168	+	if (createIncomplete) assertTrue(f.complete(v1));
3169	+
3170	+	if (!createIncomplete && testImplementationDetails)
3171	+	assertSame(f, g);   // an optimization
3172	+
3173	+	checkCompletedNormally(f, v1);
3174	+	checkCompletedNormally(g, v1);
3175	+	r.assertNotInvoked();
3176	+	}}
3177	+
3178	+	/**
3179	+	* exceptionallyCompose result completes normally after exceptional
3180	+	* completion of source
3181	+	*/
3182	+	public void testExceptionallyCompose_exceptionalCompletion() {
3183	+	for (ExecutionMode m : ExecutionMode.values())
3184	+	for (boolean createIncomplete : new boolean[] { true, false })
3185	+	{
3186	+	final CFException ex = new CFException();
3187	+	final ExceptionalCompletableFutureFunction r =
3188	+	new ExceptionalCompletableFutureFunction(m);
3189	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3190	+	if (!createIncomplete) f.completeExceptionally(ex);
3191	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3192	+	if (createIncomplete) f.completeExceptionally(ex);
3193	+
3194	+	checkCompletedExceptionally(f, ex);
3195	+	checkCompletedNormally(g, r.value);
3196	+	r.assertInvoked();
3197	+	}}
3198	+
3199	+	/**
3200	+	* exceptionallyCompose completes exceptionally on exception if action does
3201	+	*/
3202	+	public void testExceptionallyCompose_actionFailed() {
3203	+	for (ExecutionMode m : ExecutionMode.values())
3204	+	for (boolean createIncomplete : new boolean[] { true, false })
3205	+	for (Integer v1 : new Integer[] { 1, null })
3206	+	{
3207	+	final CFException ex = new CFException();
3208	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3209	+	final FailingExceptionalCompletableFutureFunction r
3210	+	= new FailingExceptionalCompletableFutureFunction(m);
3211	+	if (!createIncomplete) f.completeExceptionally(ex);
3212	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3213	+	if (createIncomplete) f.completeExceptionally(ex);
3214	+
3215	+	checkCompletedExceptionally(f, ex);
3216	+	checkCompletedWithWrappedException(g, r.ex);
3217	+	r.assertInvoked();
3218	+	}}
3219	+
3220	+	/**
3221	+	* thenComposeExceptionally result completes exceptionally if the
3222	+	* result of the action does
3223	+	*/
3224	+	public void testExceptionallyCompose_actionReturnsFailingFuture() {
3225	+	for (ExecutionMode m : ExecutionMode.values())
3226	+	for (int order = 0; order < 6; order++)
3227	+	for (Integer v1 : new Integer[] { 1, null })
3228	+	{
3229	+	final CFException ex0 = new CFException();
3230	+	final CFException ex = new CFException();
3231	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3232	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
3233	+	final CompletableFuture<Integer> h;
3234	+	// Test all permutations of orders
3235	+	switch (order) {
3236	+	case 0:
3237	+	assertTrue(f.completeExceptionally(ex0));
3238	+	assertTrue(g.completeExceptionally(ex));
3239	+	h = m.exceptionallyCompose(f, (x -> g));
3240	+	break;
3241	+	case 1:
3242	+	assertTrue(f.completeExceptionally(ex0));
3243	+	h = m.exceptionallyCompose(f, (x -> g));
3244	+	assertTrue(g.completeExceptionally(ex));
3245	+	break;
3246	+	case 2:
3247	+	assertTrue(g.completeExceptionally(ex));
3248	+	assertTrue(f.completeExceptionally(ex0));
3249	+	h = m.exceptionallyCompose(f, (x -> g));
3250	+	break;
3251	+	case 3:
3252	+	assertTrue(g.completeExceptionally(ex));
3253	+	h = m.exceptionallyCompose(f, (x -> g));
3254	+	assertTrue(f.completeExceptionally(ex0));
3255	+	break;
3256	+	case 4:
3257	+	h = m.exceptionallyCompose(f, (x -> g));
3258	+	assertTrue(f.completeExceptionally(ex0));
3259	+	assertTrue(g.completeExceptionally(ex));
3260	+	break;
3261	+	case 5:
3262	+	h = m.exceptionallyCompose(f, (x -> g));
3263	+	assertTrue(f.completeExceptionally(ex0));
3264	+	assertTrue(g.completeExceptionally(ex));
3265	+	break;
3266	+	default: throw new AssertionError();
3267	+	}
3268	+
3269	+	checkCompletedExceptionally(g, ex);
3270	+
3271	+	// TODO: should this be: checkCompletedWithWrappedException(h, ex);
3272	+	try {
3273	+	h.join();
3274	+	shouldThrow();
3275	+	} catch (Throwable t) {
3276	+	assertSame(ex, (t instanceof CompletionException) ? t.getCause() : t);
3277	+	}
3278	+
3279	+	checkCompletedExceptionally(f, ex0);
3280	+	}}
3281	+
3282		// other static methods
3283
3284		/**
#	Line 3238 | Line 3442 | public class CompletableFutureTest exten
3442		/**
3443		* Completion methods throw NullPointerException with null arguments
3444		*/
3445	+	@SuppressWarnings("FutureReturnValueIgnored")
3446		public void testNPE() {
3447		CompletableFuture<Integer> f = new CompletableFuture<>();
3448		CompletableFuture<Integer> g = new CompletableFuture<>();
#	Line 4174 | Line 4379 | public class CompletableFutureTest exten
4379		static void assertZero(CompletableFuture<?> f) {
4380		try {
4381		f.getNow(null);
4382	<	throw new AssertionFailedError("should throw");
4382	>	throw new AssertionError("should throw");
4383		} catch (CompletionException success) {
4384		assertTrue(success.getCause() instanceof ZeroException);
4385		}
#	Line 4299 | Line 4504 | public class CompletableFutureTest exten
4504		}
4505
4506		/** Test long recursive chains of CompletableFutures with cascading completions */
4507	+	@SuppressWarnings("FutureReturnValueIgnored")
4508		public void testRecursiveChains() throws Throwable {
4509		for (ExecutionMode m : ExecutionMode.values())
4510		for (boolean addDeadEnds : new boolean[] { true, false })
#	Line 4323 | Line 4529 | public class CompletableFutureTest exten
4529		* A single CompletableFuture with many dependents.
4530		* A demo of scalability - runtime is O(n).
4531		*/
4532	+	@SuppressWarnings("FutureReturnValueIgnored")
4533		public void testManyDependents() throws Throwable {
4534		final int n = expensiveTests ? 1_000_000 : 10;
4535		final CompletableFuture<Void> head = new CompletableFuture<>();
#	Line 4352 | Line 4559 | public class CompletableFutureTest exten
4559		}
4560
4561		/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4562	+	@SuppressWarnings("FutureReturnValueIgnored")
4563		public void testCoCompletionGarbageRetention() throws Throwable {
4564		final int n = expensiveTests ? 1_000_000 : 10;
4565		final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
#	Line 4370 | Line 4578 | public class CompletableFutureTest exten
4578		f.complete(null);
4579
4580		f = new CompletableFuture<>();
4581	<	CompletableFuture.anyOf(new CompletableFuture<?>[] { f, incomplete });
4581	>	CompletableFuture.anyOf(f, incomplete);
4582		f.complete(null);
4583		}
4584
#	Line 4388 | Line 4596 | public class CompletableFutureTest exten
4596		f.complete(null);
4597
4598		f = new CompletableFuture<>();
4599	<	CompletableFuture.anyOf(new CompletableFuture<?>[] { incomplete, f });
4599	>	CompletableFuture.anyOf(incomplete, f);
4600		f.complete(null);
4601		}
4602		}
#	Line 4482 | Line 4690 | public class CompletableFutureTest exten
4690		//         return stage.toCompletableFuture().copy().isDone();
4691		//     }
4692
4693	+	// For testing default implementations
4694	+	// Only non-default interface methods defined.
4695	+	static final class DelegatedCompletionStage<T> implements CompletionStage<T> {
4696	+	final CompletableFuture<T> cf;
4697	+	DelegatedCompletionStage(CompletableFuture<T> cf) { this.cf = cf; }
4698	+	public CompletableFuture<T> toCompletableFuture() {
4699	+	return cf; }
4700	+	public CompletionStage<Void> thenRun
4701	+	(Runnable action) {
4702	+	return cf.thenRun(action); }
4703	+	public CompletionStage<Void> thenRunAsync
4704	+	(Runnable action) {
4705	+	return cf.thenRunAsync(action); }
4706	+	public CompletionStage<Void> thenRunAsync
4707	+	(Runnable action,
4708	+	Executor executor) {
4709	+	return cf.thenRunAsync(action, executor); }
4710	+	public CompletionStage<Void> thenAccept
4711	+	(Consumer<? super T> action) {
4712	+	return cf.thenAccept(action); }
4713	+	public CompletionStage<Void> thenAcceptAsync
4714	+	(Consumer<? super T> action) {
4715	+	return cf.thenAcceptAsync(action); }
4716	+	public CompletionStage<Void> thenAcceptAsync
4717	+	(Consumer<? super T> action,
4718	+	Executor executor) {
4719	+	return cf.thenAcceptAsync(action, executor); }
4720	+	public <U> CompletionStage<U> thenApply
4721	+	(Function<? super T,? extends U> a) {
4722	+	return cf.thenApply(a); }
4723	+	public <U> CompletionStage<U> thenApplyAsync
4724	+	(Function<? super T,? extends U> fn) {
4725	+	return cf.thenApplyAsync(fn); }
4726	+	public <U> CompletionStage<U> thenApplyAsync
4727	+	(Function<? super T,? extends U> fn,
4728	+	Executor executor) {
4729	+	return cf.thenApplyAsync(fn, executor); }
4730	+	public <U,V> CompletionStage<V> thenCombine
4731	+	(CompletionStage<? extends U> other,
4732	+	BiFunction<? super T,? super U,? extends V> fn) {
4733	+	return cf.thenCombine(other, fn); }
4734	+	public <U,V> CompletionStage<V> thenCombineAsync
4735	+	(CompletionStage<? extends U> other,
4736	+	BiFunction<? super T,? super U,? extends V> fn) {
4737	+	return cf.thenCombineAsync(other, fn); }
4738	+	public <U,V> CompletionStage<V> thenCombineAsync
4739	+	(CompletionStage<? extends U> other,
4740	+	BiFunction<? super T,? super U,? extends V> fn,
4741	+	Executor executor) {
4742	+	return cf.thenCombineAsync(other, fn, executor); }
4743	+	public <U> CompletionStage<Void> thenAcceptBoth
4744	+	(CompletionStage<? extends U> other,
4745	+	BiConsumer<? super T, ? super U> action) {
4746	+	return cf.thenAcceptBoth(other, action); }
4747	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4748	+	(CompletionStage<? extends U> other,
4749	+	BiConsumer<? super T, ? super U> action) {
4750	+	return cf.thenAcceptBothAsync(other, action); }
4751	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4752	+	(CompletionStage<? extends U> other,
4753	+	BiConsumer<? super T, ? super U> action,
4754	+	Executor executor) {
4755	+	return cf.thenAcceptBothAsync(other, action, executor); }
4756	+	public CompletionStage<Void> runAfterBoth
4757	+	(CompletionStage<?> other,
4758	+	Runnable action) {
4759	+	return cf.runAfterBoth(other, action); }
4760	+	public CompletionStage<Void> runAfterBothAsync
4761	+	(CompletionStage<?> other,
4762	+	Runnable action) {
4763	+	return cf.runAfterBothAsync(other, action); }
4764	+	public CompletionStage<Void> runAfterBothAsync
4765	+	(CompletionStage<?> other,
4766	+	Runnable action,
4767	+	Executor executor) {
4768	+	return cf.runAfterBothAsync(other, action, executor); }
4769	+	public <U> CompletionStage<U> applyToEither
4770	+	(CompletionStage<? extends T> other,
4771	+	Function<? super T, U> fn) {
4772	+	return cf.applyToEither(other, fn); }
4773	+	public <U> CompletionStage<U> applyToEitherAsync
4774	+	(CompletionStage<? extends T> other,
4775	+	Function<? super T, U> fn) {
4776	+	return cf.applyToEitherAsync(other, fn); }
4777	+	public <U> CompletionStage<U> applyToEitherAsync
4778	+	(CompletionStage<? extends T> other,
4779	+	Function<? super T, U> fn,
4780	+	Executor executor) {
4781	+	return cf.applyToEitherAsync(other, fn, executor); }
4782	+	public CompletionStage<Void> acceptEither
4783	+	(CompletionStage<? extends T> other,
4784	+	Consumer<? super T> action) {
4785	+	return cf.acceptEither(other, action); }
4786	+	public CompletionStage<Void> acceptEitherAsync
4787	+	(CompletionStage<? extends T> other,
4788	+	Consumer<? super T> action) {
4789	+	return cf.acceptEitherAsync(other, action); }
4790	+	public CompletionStage<Void> acceptEitherAsync
4791	+	(CompletionStage<? extends T> other,
4792	+	Consumer<? super T> action,
4793	+	Executor executor) {
4794	+	return cf.acceptEitherAsync(other, action, executor); }
4795	+	public CompletionStage<Void> runAfterEither
4796	+	(CompletionStage<?> other,
4797	+	Runnable action) {
4798	+	return cf.runAfterEither(other, action); }
4799	+	public CompletionStage<Void> runAfterEitherAsync
4800	+	(CompletionStage<?> other,
4801	+	Runnable action) {
4802	+	return cf.runAfterEitherAsync(other, action); }
4803	+	public CompletionStage<Void> runAfterEitherAsync
4804	+	(CompletionStage<?> other,
4805	+	Runnable action,
4806	+	Executor executor) {
4807	+	return cf.runAfterEitherAsync(other, action, executor); }
4808	+	public <U> CompletionStage<U> thenCompose
4809	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4810	+	return cf.thenCompose(fn); }
4811	+	public <U> CompletionStage<U> thenComposeAsync
4812	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4813	+	return cf.thenComposeAsync(fn); }
4814	+	public <U> CompletionStage<U> thenComposeAsync
4815	+	(Function<? super T, ? extends CompletionStage<U>> fn,
4816	+	Executor executor) {
4817	+	return cf.thenComposeAsync(fn, executor); }
4818	+	public <U> CompletionStage<U> handle
4819	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4820	+	return cf.handle(fn); }
4821	+	public <U> CompletionStage<U> handleAsync
4822	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4823	+	return cf.handleAsync(fn); }
4824	+	public <U> CompletionStage<U> handleAsync
4825	+	(BiFunction<? super T, Throwable, ? extends U> fn,
4826	+	Executor executor) {
4827	+	return cf.handleAsync(fn, executor); }
4828	+	public CompletionStage<T> whenComplete
4829	+	(BiConsumer<? super T, ? super Throwable> action) {
4830	+	return cf.whenComplete(action); }
4831	+	public CompletionStage<T> whenCompleteAsync
4832	+	(BiConsumer<? super T, ? super Throwable> action) {
4833	+	return cf.whenCompleteAsync(action); }
4834	+	public CompletionStage<T> whenCompleteAsync
4835	+	(BiConsumer<? super T, ? super Throwable> action,
4836	+	Executor executor) {
4837	+	return cf.whenCompleteAsync(action, executor); }
4838	+	public CompletionStage<T> exceptionally
4839	+	(Function<Throwable, ? extends T> fn) {
4840	+	return cf.exceptionally(fn); }
4841	+	}
4842	+
4843	+	/**
4844	+	* default-implemented exceptionallyAsync action is not invoked when
4845	+	* source completes normally, and source result is propagated
4846	+	*/
4847	+	public void testDefaultExceptionallyAsync_normalCompletion() {
4848	+	for (boolean createIncomplete : new boolean[] { true, false })
4849	+	for (Integer v1 : new Integer[] { 1, null })
4850	+	{
4851	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4852	+	final DelegatedCompletionStage<Integer> d =
4853	+	new DelegatedCompletionStage<Integer>(f);
4854	+	if (!createIncomplete) assertTrue(f.complete(v1));
4855	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4856	+	((Throwable t) -> {
4857	+	threadFail("should not be called");
4858	+	return null;            // unreached
4859	+	});
4860	+	if (createIncomplete) assertTrue(f.complete(v1));
4861	+
4862	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4863	+	}}
4864	+
4865	+	/**
4866	+	* default-implemented exceptionallyAsync action completes with
4867	+	* function value on source exception
4868	+	*/
4869	+	public void testDefaultExceptionallyAsync_exceptionalCompletion() {
4870	+	for (boolean createIncomplete : new boolean[] { true, false })
4871	+	for (Integer v1 : new Integer[] { 1, null })
4872	+	{
4873	+	final AtomicInteger a = new AtomicInteger(0);
4874	+	final CFException ex = new CFException();
4875	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4876	+	final DelegatedCompletionStage<Integer> d =
4877	+	new DelegatedCompletionStage<Integer>(f);
4878	+	if (!createIncomplete) f.completeExceptionally(ex);
4879	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4880	+	((Throwable t) -> {
4881	+	threadAssertSame(t, ex);
4882	+	a.getAndIncrement();
4883	+	return v1;
4884	+	});
4885	+	if (createIncomplete) f.completeExceptionally(ex);
4886	+
4887	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4888	+	assertEquals(1, a.get());
4889	+	}}
4890	+
4891	+	/**
4892	+	* Under default implementation, if an "exceptionally action"
4893	+	* throws an exception, it completes exceptionally with that
4894	+	* exception
4895	+	*/
4896	+	public void testDefaultExceptionallyAsync_exceptionalCompletionActionFailed() {
4897	+	for (boolean createIncomplete : new boolean[] { true, false })
4898	+	{
4899	+	final AtomicInteger a = new AtomicInteger(0);
4900	+	final CFException ex1 = new CFException();
4901	+	final CFException ex2 = new CFException();
4902	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4903	+	final DelegatedCompletionStage<Integer> d =
4904	+	new DelegatedCompletionStage<Integer>(f);
4905	+	if (!createIncomplete) f.completeExceptionally(ex1);
4906	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4907	+	((Throwable t) -> {
4908	+	threadAssertSame(t, ex1);
4909	+	a.getAndIncrement();
4910	+	throw ex2;
4911	+	});
4912	+	if (createIncomplete) f.completeExceptionally(ex1);
4913	+
4914	+	checkCompletedWithWrappedException(g.toCompletableFuture(), ex2);
4915	+	checkCompletedExceptionally(f, ex1);
4916	+	checkCompletedExceptionally(d.toCompletableFuture(), ex1);
4917	+	assertEquals(1, a.get());
4918	+	}}
4919	+
4920	+	/**
4921	+	* default exceptionallyCompose result completes normally after normal
4922	+	* completion of source
4923	+	*/
4924	+	public void testDefaultExceptionallyCompose_normalCompletion() {
4925	+	for (boolean createIncomplete : new boolean[] { true, false })
4926	+	for (Integer v1 : new Integer[] { 1, null })
4927	+	{
4928	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4929	+	final ExceptionalCompletableFutureFunction r =
4930	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4931	+	final DelegatedCompletionStage<Integer> d =
4932	+	new DelegatedCompletionStage<Integer>(f);
4933	+	if (!createIncomplete) assertTrue(f.complete(v1));
4934	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4935	+	if (createIncomplete) assertTrue(f.complete(v1));
4936	+
4937	+	checkCompletedNormally(f, v1);
4938	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4939	+	r.assertNotInvoked();
4940	+	}}
4941	+
4942	+	/**
4943	+	* default-implemented exceptionallyCompose result completes
4944	+	* normally after exceptional completion of source
4945	+	*/
4946	+	public void testDefaultExceptionallyCompose_exceptionalCompletion() {
4947	+	for (boolean createIncomplete : new boolean[] { true, false })
4948	+	{
4949	+	final CFException ex = new CFException();
4950	+	final ExceptionalCompletableFutureFunction r =
4951	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4952	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4953	+	final DelegatedCompletionStage<Integer> d =
4954	+	new DelegatedCompletionStage<Integer>(f);
4955	+	if (!createIncomplete) f.completeExceptionally(ex);
4956	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4957	+	if (createIncomplete) f.completeExceptionally(ex);
4958	+
4959	+	checkCompletedExceptionally(f, ex);
4960	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
4961	+	r.assertInvoked();
4962	+	}}
4963	+
4964	+	/**
4965	+	* default-implemented exceptionallyCompose completes
4966	+	* exceptionally on exception if action does
4967	+	*/
4968	+	public void testDefaultExceptionallyCompose_actionFailed() {
4969	+	for (boolean createIncomplete : new boolean[] { true, false })
4970	+	for (Integer v1 : new Integer[] { 1, null })
4971	+	{
4972	+	final CFException ex = new CFException();
4973	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4974	+	final FailingExceptionalCompletableFutureFunction r
4975	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4976	+	final DelegatedCompletionStage<Integer> d =
4977	+	new DelegatedCompletionStage<Integer>(f);
4978	+	if (!createIncomplete) f.completeExceptionally(ex);
4979	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4980	+	if (createIncomplete) f.completeExceptionally(ex);
4981	+
4982	+	checkCompletedExceptionally(f, ex);
4983	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4984	+	r.assertInvoked();
4985	+	}}
4986	+
4987	+	/**
4988	+	* default exceptionallyComposeAsync result completes normally after normal
4989	+	* completion of source
4990	+	*/
4991	+	public void testDefaultExceptionallyComposeAsync_normalCompletion() {
4992	+	for (boolean createIncomplete : new boolean[] { true, false })
4993	+	for (Integer v1 : new Integer[] { 1, null })
4994	+	{
4995	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4996	+	final ExceptionalCompletableFutureFunction r =
4997	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4998	+	final DelegatedCompletionStage<Integer> d =
4999	+	new DelegatedCompletionStage<Integer>(f);
5000	+	if (!createIncomplete) assertTrue(f.complete(v1));
5001	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5002	+	if (createIncomplete) assertTrue(f.complete(v1));
5003	+
5004	+	checkCompletedNormally(f, v1);
5005	+	checkCompletedNormally(g.toCompletableFuture(), v1);
5006	+	r.assertNotInvoked();
5007	+	}}
5008	+
5009	+	/**
5010	+	* default-implemented exceptionallyComposeAsync result completes
5011	+	* normally after exceptional completion of source
5012	+	*/
5013	+	public void testDefaultExceptionallyComposeAsync_exceptionalCompletion() {
5014	+	for (boolean createIncomplete : new boolean[] { true, false })
5015	+	{
5016	+	final CFException ex = new CFException();
5017	+	final ExceptionalCompletableFutureFunction r =
5018	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
5019	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5020	+	final DelegatedCompletionStage<Integer> d =
5021	+	new DelegatedCompletionStage<Integer>(f);
5022	+	if (!createIncomplete) f.completeExceptionally(ex);
5023	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5024	+	if (createIncomplete) f.completeExceptionally(ex);
5025	+
5026	+	checkCompletedExceptionally(f, ex);
5027	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5028	+	r.assertInvoked();
5029	+	}}
5030	+
5031	+	/**
5032	+	* default-implemented exceptionallyComposeAsync completes
5033	+	* exceptionally on exception if action does
5034	+	*/
5035	+	public void testDefaultExceptionallyComposeAsync_actionFailed() {
5036	+	for (boolean createIncomplete : new boolean[] { true, false })
5037	+	for (Integer v1 : new Integer[] { 1, null })
5038	+	{
5039	+	final CFException ex = new CFException();
5040	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5041	+	final FailingExceptionalCompletableFutureFunction r
5042	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
5043	+	final DelegatedCompletionStage<Integer> d =
5044	+	new DelegatedCompletionStage<Integer>(f);
5045	+	if (!createIncomplete) f.completeExceptionally(ex);
5046	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5047	+	if (createIncomplete) f.completeExceptionally(ex);
5048	+
5049	+	checkCompletedExceptionally(f, ex);
5050	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5051	+	r.assertInvoked();
5052	+	}}
5053	+
5054	+
5055	+	/**
5056	+	* default exceptionallyComposeAsync result completes normally after normal
5057	+	* completion of source
5058	+	*/
5059	+	public void testDefaultExceptionallyComposeAsyncExecutor_normalCompletion() {
5060	+	for (boolean createIncomplete : new boolean[] { true, false })
5061	+	for (Integer v1 : new Integer[] { 1, null })
5062	+	{
5063	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5064	+	final ExceptionalCompletableFutureFunction r =
5065	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5066	+	final DelegatedCompletionStage<Integer> d =
5067	+	new DelegatedCompletionStage<Integer>(f);
5068	+	if (!createIncomplete) assertTrue(f.complete(v1));
5069	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5070	+	if (createIncomplete) assertTrue(f.complete(v1));
5071	+
5072	+	checkCompletedNormally(f, v1);
5073	+	checkCompletedNormally(g.toCompletableFuture(), v1);
5074	+	r.assertNotInvoked();
5075	+	}}
5076	+
5077	+	/**
5078	+	* default-implemented exceptionallyComposeAsync result completes
5079	+	* normally after exceptional completion of source
5080	+	*/
5081	+	public void testDefaultExceptionallyComposeAsyncExecutor_exceptionalCompletion() {
5082	+	for (boolean createIncomplete : new boolean[] { true, false })
5083	+	{
5084	+	final CFException ex = new CFException();
5085	+	final ExceptionalCompletableFutureFunction r =
5086	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5087	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5088	+	final DelegatedCompletionStage<Integer> d =
5089	+	new DelegatedCompletionStage<Integer>(f);
5090	+	if (!createIncomplete) f.completeExceptionally(ex);
5091	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5092	+	if (createIncomplete) f.completeExceptionally(ex);
5093	+
5094	+	checkCompletedExceptionally(f, ex);
5095	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5096	+	r.assertInvoked();
5097	+	}}
5098	+
5099	+	/**
5100	+	* default-implemented exceptionallyComposeAsync completes
5101	+	* exceptionally on exception if action does
5102	+	*/
5103	+	public void testDefaultExceptionallyComposeAsyncExecutor_actionFailed() {
5104	+	for (boolean createIncomplete : new boolean[] { true, false })
5105	+	for (Integer v1 : new Integer[] { 1, null })
5106	+	{
5107	+	final CFException ex = new CFException();
5108	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5109	+	final FailingExceptionalCompletableFutureFunction r
5110	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5111	+	final DelegatedCompletionStage<Integer> d =
5112	+	new DelegatedCompletionStage<Integer>(f);
5113	+	if (!createIncomplete) f.completeExceptionally(ex);
5114	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5115	+	if (createIncomplete) f.completeExceptionally(ex);
5116	+
5117	+	checkCompletedExceptionally(f, ex);
5118	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5119	+	r.assertInvoked();
5120	+	}}
5121	+
5122		}

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