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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.74 by jsr166, Fri Jun 6 21:19:22 2014 UTC vs.
Revision 1.171 by jsr166, Wed Aug 24 22:22:39 2016 UTC

#	Line 5 | Line 5
5		* http://creativecommons.org/publicdomain/zero/1.0/
6		*/
7
8	<	import junit.framework.*;
8	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
9	>	import static java.util.concurrent.TimeUnit.SECONDS;
10	>	import static java.util.concurrent.CompletableFuture.completedFuture;
11	>	import static java.util.concurrent.CompletableFuture.failedFuture;
12	>
13	>	import java.lang.reflect.Method;
14	>	import java.lang.reflect.Modifier;
15	>
16	>	import java.util.stream.Collectors;
17	>	import java.util.stream.Stream;
18	>
19	>	import java.util.ArrayList;
20	>	import java.util.Arrays;
21	>	import java.util.List;
22	>	import java.util.Objects;
23	>	import java.util.Set;
24		import java.util.concurrent.Callable;
10	–	import java.util.concurrent.Executor;
11	–	import java.util.concurrent.ExecutorService;
12	–	import java.util.concurrent.Executors;
25		import java.util.concurrent.CancellationException;
14	–	import java.util.concurrent.CountDownLatch;
15	–	import java.util.concurrent.ExecutionException;
16	–	import java.util.concurrent.Future;
26		import java.util.concurrent.CompletableFuture;
27		import java.util.concurrent.CompletionException;
28		import java.util.concurrent.CompletionStage;
29	+	import java.util.concurrent.ExecutionException;
30	+	import java.util.concurrent.Executor;
31		import java.util.concurrent.ForkJoinPool;
32		import java.util.concurrent.ForkJoinTask;
33	+	import java.util.concurrent.RejectedExecutionException;
34		import java.util.concurrent.TimeoutException;
35		import java.util.concurrent.atomic.AtomicInteger;
36	<	import static java.util.concurrent.TimeUnit.MILLISECONDS;
25	<	import static java.util.concurrent.TimeUnit.SECONDS;
26	<	import java.util.*;
27	<	import java.util.function.Supplier;
28	<	import java.util.function.Consumer;
36	>	import java.util.concurrent.atomic.AtomicReference;
37		import java.util.function.BiConsumer;
30	–	import java.util.function.Function;
38		import java.util.function.BiFunction;
39	+	import java.util.function.Consumer;
40	+	import java.util.function.Function;
41	+	import java.util.function.Predicate;
42	+	import java.util.function.Supplier;
43	+
44	+	import junit.framework.AssertionFailedError;
45	+	import junit.framework.Test;
46	+	import junit.framework.TestSuite;
47
48		public class CompletableFutureTest extends JSR166TestCase {
49
50		public static void main(String[] args) {
51	<	junit.textui.TestRunner.run(suite());
51	>	main(suite(), args);
52		}
53		public static Test suite() {
54		return new TestSuite(CompletableFutureTest.class);
#	Line 44 | Line 59 | public class CompletableFutureTest exten
59		void checkIncomplete(CompletableFuture<?> f) {
60		assertFalse(f.isDone());
61		assertFalse(f.isCancelled());
62	<	assertTrue(f.toString().contains("[Not completed]"));
62	>	assertTrue(f.toString().contains("Not completed"));
63		try {
64		assertNull(f.getNow(null));
65		} catch (Throwable fail) { threadUnexpectedException(fail); }
#	Line 57 | Line 72 | public class CompletableFutureTest exten
72		}
73
74		<T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
75	<	try {
76	<	assertEquals(value, f.get(LONG_DELAY_MS, MILLISECONDS));
62	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
75	>	checkTimedGet(f, value);
76	>
77		try {
78		assertEquals(value, f.join());
79		} catch (Throwable fail) { threadUnexpectedException(fail); }
#	Line 75 | Line 89 | public class CompletableFutureTest exten
89		assertTrue(f.toString().contains("[Completed normally]"));
90		}
91
92	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
93	<	try {
94	<	f.get(LONG_DELAY_MS, MILLISECONDS);
95	<	shouldThrow();
96	<	} catch (ExecutionException success) {
97	<	assertTrue(success.getCause() instanceof CFException);
98	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
99	<	try {
100	<	f.join();
101	<	shouldThrow();
102	<	} catch (CompletionException success) {
103	<	assertTrue(success.getCause() instanceof CFException);
104	<	}
105	<	try {
106	<	f.getNow(null);
107	<	shouldThrow();
108	<	} catch (CompletionException success) {
95	<	assertTrue(success.getCause() instanceof CFException);
92	>	/**
93	>	* Returns the "raw" internal exceptional completion of f,
94	>	* without any additional wrapping with CompletionException.
95	>	*/
96	>	<U> Throwable exceptionalCompletion(CompletableFuture<U> f) {
97	>	// handle (and whenComplete) can distinguish between "direct"
98	>	// and "wrapped" exceptional completion
99	>	return f.handle((U u, Throwable t) -> t).join();
100	>	}
101	>
102	>	void checkCompletedExceptionally(CompletableFuture<?> f,
103	>	boolean wrapped,
104	>	Consumer<Throwable> checker) {
105	>	Throwable cause = exceptionalCompletion(f);
106	>	if (wrapped) {
107	>	assertTrue(cause instanceof CompletionException);
108	>	cause = cause.getCause();
109		}
110	<	try {
98	<	f.get();
99	<	shouldThrow();
100	<	} catch (ExecutionException success) {
101	<	assertTrue(success.getCause() instanceof CFException);
102	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
103	<	assertTrue(f.isDone());
104	<	assertFalse(f.isCancelled());
105	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
106	<	}
110	>	checker.accept(cause);
111
112	<	<U> void checkCompletedExceptionallyWithRootCause(CompletableFuture<U> f,
109	<	Throwable ex) {
112	>	long startTime = System.nanoTime();
113		try {
114		f.get(LONG_DELAY_MS, MILLISECONDS);
115		shouldThrow();
116		} catch (ExecutionException success) {
117	<	assertSame(ex, success.getCause());
117	>	assertSame(cause, success.getCause());
118		} catch (Throwable fail) { threadUnexpectedException(fail); }
119	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
120	+
121		try {
122		f.join();
123		shouldThrow();
124		} catch (CompletionException success) {
125	<	assertSame(ex, success.getCause());
126	<	}
125	>	assertSame(cause, success.getCause());
126	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
127	>
128		try {
129		f.getNow(null);
130		shouldThrow();
131		} catch (CompletionException success) {
132	<	assertSame(ex, success.getCause());
133	<	}
132	>	assertSame(cause, success.getCause());
133	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
134	>
135		try {
136		f.get();
137		shouldThrow();
138		} catch (ExecutionException success) {
139	<	assertSame(ex, success.getCause());
139	>	assertSame(cause, success.getCause());
140		} catch (Throwable fail) { threadUnexpectedException(fail); }
141
135	–	assertTrue(f.isDone());
142		assertFalse(f.isCancelled());
143	+	assertTrue(f.isDone());
144	+	assertTrue(f.isCompletedExceptionally());
145		assertTrue(f.toString().contains("[Completed exceptionally]"));
146		}
147
148	<	<U> void checkCompletedWithWrappedException(CompletableFuture<U> f,
149	<	Throwable ex) {
150	<	checkCompletedExceptionallyWithRootCause(f, ex);
143	<	try {
144	<	CompletableFuture<Throwable> spy = f.handle
145	<	((U u, Throwable t) -> t);
146	<	assertTrue(spy.join() instanceof CompletionException);
147	<	assertSame(ex, spy.join().getCause());
148	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
148	>	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
149	>	checkCompletedExceptionally(f, true,
150	>	(t) -> assertTrue(t instanceof CFException));
151		}
152
153	<	<U> void checkCompletedExceptionally(CompletableFuture<U> f, Throwable ex) {
154	<	checkCompletedExceptionallyWithRootCause(f, ex);
155	<	try {
156	<	CompletableFuture<Throwable> spy = f.handle
157	<	((U u, Throwable t) -> t);
158	<	assertSame(ex, spy.join());
159	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
153	>	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
154	>	checkCompletedExceptionally(f, true,
155	>	(t) -> assertTrue(t instanceof CancellationException));
156	>	}
157	>
158	>	void checkCompletedWithTimeoutException(CompletableFuture<?> f) {
159	>	checkCompletedExceptionally(f, false,
160	>	(t) -> assertTrue(t instanceof TimeoutException));
161	>	}
162	>
163	>	void checkCompletedWithWrappedException(CompletableFuture<?> f,
164	>	Throwable ex) {
165	>	checkCompletedExceptionally(f, true, (t) -> assertSame(t, ex));
166	>	}
167	>
168	>	void checkCompletedExceptionally(CompletableFuture<?> f, Throwable ex) {
169	>	checkCompletedExceptionally(f, false, (t) -> assertSame(t, ex));
170		}
171
172		void checkCancelled(CompletableFuture<?> f) {
173	+	long startTime = System.nanoTime();
174		try {
175		f.get(LONG_DELAY_MS, MILLISECONDS);
176		shouldThrow();
177		} catch (CancellationException success) {
178		} catch (Throwable fail) { threadUnexpectedException(fail); }
179	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
180	+
181		try {
182		f.join();
183		shouldThrow();
#	Line 176 | Line 191 | public class CompletableFutureTest exten
191		shouldThrow();
192		} catch (CancellationException success) {
193		} catch (Throwable fail) { threadUnexpectedException(fail); }
179	–	assertTrue(f.isDone());
180	–	assertTrue(f.isCompletedExceptionally());
181	–	assertTrue(f.isCancelled());
182	–	assertTrue(f.toString().contains("[Completed exceptionally]"));
183	–	}
194
195	<	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
196	<	try {
187	<	f.get(LONG_DELAY_MS, MILLISECONDS);
188	<	shouldThrow();
189	<	} catch (ExecutionException success) {
190	<	assertTrue(success.getCause() instanceof CancellationException);
191	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
192	<	try {
193	<	f.join();
194	<	shouldThrow();
195	<	} catch (CompletionException success) {
196	<	assertTrue(success.getCause() instanceof CancellationException);
197	<	}
198	<	try {
199	<	f.getNow(null);
200	<	shouldThrow();
201	<	} catch (CompletionException success) {
202	<	assertTrue(success.getCause() instanceof CancellationException);
203	<	}
204	<	try {
205	<	f.get();
206	<	shouldThrow();
207	<	} catch (ExecutionException success) {
208	<	assertTrue(success.getCause() instanceof CancellationException);
209	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
195	>	assertTrue(exceptionalCompletion(f) instanceof CancellationException);
196	>
197		assertTrue(f.isDone());
211	–	assertFalse(f.isCancelled());
198		assertTrue(f.isCompletedExceptionally());
199	+	assertTrue(f.isCancelled());
200		assertTrue(f.toString().contains("[Completed exceptionally]"));
201		}
202
#	Line 227 | Line 214 | public class CompletableFutureTest exten
214		* isCancelled, join, get, and getNow
215		*/
216		public void testComplete() {
217	+	for (Integer v1 : new Integer[] { 1, null })
218	+	{
219		CompletableFuture<Integer> f = new CompletableFuture<>();
220		checkIncomplete(f);
221	<	f.complete(one);
222	<	checkCompletedNormally(f, one);
223	<	}
221	>	assertTrue(f.complete(v1));
222	>	assertFalse(f.complete(v1));
223	>	checkCompletedNormally(f, v1);
224	>	}}
225
226		/**
227		* completeExceptionally completes exceptionally, as indicated by
#	Line 250 | Line 240 | public class CompletableFutureTest exten
240		* methods isDone, isCancelled, join, get, and getNow
241		*/
242		public void testCancel() {
243	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
244	+	{
245		CompletableFuture<Integer> f = new CompletableFuture<>();
246		checkIncomplete(f);
247	<	assertTrue(f.cancel(true));
247	>	assertTrue(f.cancel(mayInterruptIfRunning));
248	>	assertTrue(f.cancel(mayInterruptIfRunning));
249	>	assertTrue(f.cancel(!mayInterruptIfRunning));
250		checkCancelled(f);
251	<	}
251	>	}}
252
253		/**
254		* obtrudeValue forces completion with given value
#	Line 262 | Line 256 | public class CompletableFutureTest exten
256		public void testObtrudeValue() {
257		CompletableFuture<Integer> f = new CompletableFuture<>();
258		checkIncomplete(f);
259	<	f.complete(one);
259	>	assertTrue(f.complete(one));
260		checkCompletedNormally(f, one);
261		f.obtrudeValue(three);
262		checkCompletedNormally(f, three);
#	Line 289 | Line 283 | public class CompletableFutureTest exten
283		CompletableFuture<Integer> f;
284
285		f = new CompletableFuture<>();
286	<	f.complete(v1);
286	>	assertTrue(f.complete(v1));
287		for (int i = 0; i < 2; i++) {
288		f.obtrudeException(ex = new CFException());
289		checkCompletedExceptionally(f, ex);
#	Line 309 | Line 303 | public class CompletableFutureTest exten
303		checkCompletedExceptionally(f, ex);
304		f.completeExceptionally(new CFException());
305		checkCompletedExceptionally(f, ex);
306	<	f.complete(v1);
306	>	assertFalse(f.complete(v1));
307		checkCompletedExceptionally(f, ex);
308		}}
309
#	Line 317 | Line 311 | public class CompletableFutureTest exten
311		* getNumberOfDependents returns number of dependent tasks
312		*/
313		public void testGetNumberOfDependents() {
314	+	for (ExecutionMode m : ExecutionMode.values())
315	+	for (Integer v1 : new Integer[] { 1, null })
316	+	{
317		CompletableFuture<Integer> f = new CompletableFuture<>();
318		assertEquals(0, f.getNumberOfDependents());
319	<	CompletableFuture g = f.thenRun(new Noop(ExecutionMode.DEFAULT));
319	>	final CompletableFuture<Void> g = m.thenRun(f, new Noop(m));
320		assertEquals(1, f.getNumberOfDependents());
321		assertEquals(0, g.getNumberOfDependents());
322	<	CompletableFuture h = f.thenRun(new Noop(ExecutionMode.DEFAULT));
322	>	final CompletableFuture<Void> h = m.thenRun(f, new Noop(m));
323		assertEquals(2, f.getNumberOfDependents());
324	<	f.complete(1);
324	>	assertEquals(0, h.getNumberOfDependents());
325	>	assertTrue(f.complete(v1));
326		checkCompletedNormally(g, null);
327	+	checkCompletedNormally(h, null);
328		assertEquals(0, f.getNumberOfDependents());
329		assertEquals(0, g.getNumberOfDependents());
330	<	}
330	>	assertEquals(0, h.getNumberOfDependents());
331	>	}}
332
333		/**
334		* toString indicates current completion state
#	Line 339 | Line 339 | public class CompletableFutureTest exten
339		f = new CompletableFuture<String>();
340		assertTrue(f.toString().contains("[Not completed]"));
341
342	<	f.complete("foo");
342	>	assertTrue(f.complete("foo"));
343		assertTrue(f.toString().contains("[Completed normally]"));
344
345		f = new CompletableFuture<String>();
346	<	f.completeExceptionally(new IndexOutOfBoundsException());
347	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
348	<
349	<	f = new CompletableFuture<String>();
350	<	f.cancel(true);
346	>	assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
347		assertTrue(f.toString().contains("[Completed exceptionally]"));
348
349	<	f = new CompletableFuture<String>();
350	<	f.cancel(false);
351	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
349	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
350	>	f = new CompletableFuture<String>();
351	>	assertTrue(f.cancel(mayInterruptIfRunning));
352	>	assertTrue(f.toString().contains("[Completed exceptionally]"));
353	>	}
354		}
355
356		/**
#	Line 461 | Line 459 | public class CompletableFutureTest exten
459		class FailingSupplier extends CheckedAction
460		implements Supplier<Integer>
461		{
462	<	FailingSupplier(ExecutionMode m) { super(m); }
462	>	final CFException ex;
463	>	FailingSupplier(ExecutionMode m) { super(m); ex = new CFException(); }
464		public Integer get() {
465		invoked();
466	<	throw new CFException();
466	>	throw ex;
467		}
468		}
469
470		class FailingConsumer extends CheckedIntegerAction
471		implements Consumer<Integer>
472		{
473	<	FailingConsumer(ExecutionMode m) { super(m); }
473	>	final CFException ex;
474	>	FailingConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
475		public void accept(Integer x) {
476		invoked();
477		value = x;
478	<	throw new CFException();
478	>	throw ex;
479		}
480		}
481
482		class FailingBiConsumer extends CheckedIntegerAction
483		implements BiConsumer<Integer, Integer>
484		{
485	<	FailingBiConsumer(ExecutionMode m) { super(m); }
485	>	final CFException ex;
486	>	FailingBiConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
487		public void accept(Integer x, Integer y) {
488		invoked();
489		value = subtract(x, y);
490	<	throw new CFException();
490	>	throw ex;
491		}
492		}
493
494		class FailingFunction extends CheckedIntegerAction
495		implements Function<Integer, Integer>
496		{
497	<	FailingFunction(ExecutionMode m) { super(m); }
497	>	final CFException ex;
498	>	FailingFunction(ExecutionMode m) { super(m); ex = new CFException(); }
499		public Integer apply(Integer x) {
500		invoked();
501		value = x;
502	<	throw new CFException();
502	>	throw ex;
503		}
504		}
505
506		class FailingBiFunction extends CheckedIntegerAction
507		implements BiFunction<Integer, Integer, Integer>
508		{
509	<	FailingBiFunction(ExecutionMode m) { super(m); }
509	>	final CFException ex;
510	>	FailingBiFunction(ExecutionMode m) { super(m); ex = new CFException(); }
511		public Integer apply(Integer x, Integer y) {
512		invoked();
513		value = subtract(x, y);
514	<	throw new CFException();
514	>	throw ex;
515		}
516		}
517
518		class FailingRunnable extends CheckedAction implements Runnable {
519	<	FailingRunnable(ExecutionMode m) { super(m); }
519	>	final CFException ex;
520	>	FailingRunnable(ExecutionMode m) { super(m); ex = new CFException(); }
521		public void run() {
522		invoked();
523	<	throw new CFException();
523	>	throw ex;
524		}
525		}
526
523	–
527		class CompletableFutureInc extends CheckedIntegerAction
528		implements Function<Integer, CompletableFuture<Integer>>
529		{
#	Line 529 | Line 532 | public class CompletableFutureTest exten
532		invoked();
533		value = x;
534		CompletableFuture<Integer> f = new CompletableFuture<>();
535	<	f.complete(inc(x));
535	>	assertTrue(f.complete(inc(x)));
536		return f;
537		}
538		}
#	Line 537 | Line 540 | public class CompletableFutureTest exten
540		class FailingCompletableFutureFunction extends CheckedIntegerAction
541		implements Function<Integer, CompletableFuture<Integer>>
542		{
543	<	FailingCompletableFutureFunction(ExecutionMode m) { super(m); }
543	>	final CFException ex;
544	>	FailingCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
545		public CompletableFuture<Integer> apply(Integer x) {
546		invoked();
547		value = x;
548	<	throw new CFException();
548	>	throw ex;
549	>	}
550	>	}
551	>
552	>	static class CountingRejectingExecutor implements Executor {
553	>	final RejectedExecutionException ex = new RejectedExecutionException();
554	>	final AtomicInteger count = new AtomicInteger(0);
555	>	public void execute(Runnable r) {
556	>	count.getAndIncrement();
557	>	throw ex;
558		}
559		}
560
#	Line 559 | Line 572 | public class CompletableFutureTest exten
572		}
573		}
574
575	+	static final boolean defaultExecutorIsCommonPool
576	+	= ForkJoinPool.getCommonPoolParallelism() > 1;
577	+
578		/**
579		* Permits the testing of parallel code for the 3 different
580		* execution modes without copy/pasting all the test methods.
581		*/
582		enum ExecutionMode {
583	<	DEFAULT {
583	>	SYNC {
584		public void checkExecutionMode() {
585		assertFalse(ThreadExecutor.startedCurrentThread());
586		assertNull(ForkJoinTask.getPool());
#	Line 640 | Line 656 | public class CompletableFutureTest exten
656
657		ASYNC {
658		public void checkExecutionMode() {
659	<	assertSame(ForkJoinPool.commonPool(),
660	<	ForkJoinTask.getPool());
659	>	assertEquals(defaultExecutorIsCommonPool,
660	>	(ForkJoinPool.commonPool() == ForkJoinTask.getPool()));
661		}
662		public CompletableFuture<Void> runAsync(Runnable a) {
663		return CompletableFuture.runAsync(a);
#	Line 837 | Line 853 | public class CompletableFutureTest exten
853		{
854		final AtomicInteger a = new AtomicInteger(0);
855		final CompletableFuture<Integer> f = new CompletableFuture<>();
856	<	if (!createIncomplete) f.complete(v1);
856	>	if (!createIncomplete) assertTrue(f.complete(v1));
857		final CompletableFuture<Integer> g = f.exceptionally
858		((Throwable t) -> {
843	–	// Should not be called
859		a.getAndIncrement();
860	<	throw new AssertionError();
860	>	threadFail("should not be called");
861	>	return null;            // unreached
862		});
863	<	if (createIncomplete) f.complete(v1);
863	>	if (createIncomplete) assertTrue(f.complete(v1));
864
865		checkCompletedNormally(g, v1);
866		checkCompletedNormally(f, v1);
867		assertEquals(0, a.get());
868		}}
869
854	–
870		/**
871		* exceptionally action completes with function value on source
872		* exception
#	Line 866 | Line 881 | public class CompletableFutureTest exten
881		if (!createIncomplete) f.completeExceptionally(ex);
882		final CompletableFuture<Integer> g = f.exceptionally
883		((Throwable t) -> {
884	<	ExecutionMode.DEFAULT.checkExecutionMode();
884	>	ExecutionMode.SYNC.checkExecutionMode();
885		threadAssertSame(t, ex);
886		a.getAndIncrement();
887		return v1;
#	Line 877 | Line 892 | public class CompletableFutureTest exten
892		assertEquals(1, a.get());
893		}}
894
895	+	/**
896	+	* If an "exceptionally action" throws an exception, it completes
897	+	* exceptionally with that exception
898	+	*/
899		public void testExceptionally_exceptionalCompletionActionFailed() {
900		for (boolean createIncomplete : new boolean[] { true, false })
882	–	for (Integer v1 : new Integer[] { 1, null })
901		{
902		final AtomicInteger a = new AtomicInteger(0);
903		final CFException ex1 = new CFException();
#	Line 888 | Line 906 | public class CompletableFutureTest exten
906		if (!createIncomplete) f.completeExceptionally(ex1);
907		final CompletableFuture<Integer> g = f.exceptionally
908		((Throwable t) -> {
909	<	ExecutionMode.DEFAULT.checkExecutionMode();
909	>	ExecutionMode.SYNC.checkExecutionMode();
910		threadAssertSame(t, ex1);
911		a.getAndIncrement();
912		throw ex2;
#	Line 896 | Line 914 | public class CompletableFutureTest exten
914		if (createIncomplete) f.completeExceptionally(ex1);
915
916		checkCompletedWithWrappedException(g, ex2);
917	+	checkCompletedExceptionally(f, ex1);
918	+	assertEquals(1, a.get());
919	+	}}
920	+
921	+	/**
922	+	* whenComplete action executes on normal completion, propagating
923	+	* source result.
924	+	*/
925	+	public void testWhenComplete_normalCompletion() {
926	+	for (ExecutionMode m : ExecutionMode.values())
927	+	for (boolean createIncomplete : new boolean[] { true, false })
928	+	for (Integer v1 : new Integer[] { 1, null })
929	+	{
930	+	final AtomicInteger a = new AtomicInteger(0);
931	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
932	+	if (!createIncomplete) assertTrue(f.complete(v1));
933	+	final CompletableFuture<Integer> g = m.whenComplete
934	+	(f,
935	+	(Integer result, Throwable t) -> {
936	+	m.checkExecutionMode();
937	+	threadAssertSame(result, v1);
938	+	threadAssertNull(t);
939	+	a.getAndIncrement();
940	+	});
941	+	if (createIncomplete) assertTrue(f.complete(v1));
942	+
943	+	checkCompletedNormally(g, v1);
944	+	checkCompletedNormally(f, v1);
945	+	assertEquals(1, a.get());
946	+	}}
947	+
948	+	/**
949	+	* whenComplete action executes on exceptional completion, propagating
950	+	* source result.
951	+	*/
952	+	public void testWhenComplete_exceptionalCompletion() {
953	+	for (ExecutionMode m : ExecutionMode.values())
954	+	for (boolean createIncomplete : new boolean[] { true, false })
955	+	{
956	+	final AtomicInteger a = new AtomicInteger(0);
957	+	final CFException ex = new CFException();
958	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
959	+	if (!createIncomplete) f.completeExceptionally(ex);
960	+	final CompletableFuture<Integer> g = m.whenComplete
961	+	(f,
962	+	(Integer result, Throwable t) -> {
963	+	m.checkExecutionMode();
964	+	threadAssertNull(result);
965	+	threadAssertSame(t, ex);
966	+	a.getAndIncrement();
967	+	});
968	+	if (createIncomplete) f.completeExceptionally(ex);
969	+
970	+	checkCompletedWithWrappedException(g, ex);
971	+	checkCompletedExceptionally(f, ex);
972	+	assertEquals(1, a.get());
973	+	}}
974	+
975	+	/**
976	+	* whenComplete action executes on cancelled source, propagating
977	+	* CancellationException.
978	+	*/
979	+	public void testWhenComplete_sourceCancelled() {
980	+	for (ExecutionMode m : ExecutionMode.values())
981	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
982	+	for (boolean createIncomplete : new boolean[] { true, false })
983	+	{
984	+	final AtomicInteger a = new AtomicInteger(0);
985	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
986	+	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
987	+	final CompletableFuture<Integer> g = m.whenComplete
988	+	(f,
989	+	(Integer result, Throwable t) -> {
990	+	m.checkExecutionMode();
991	+	threadAssertNull(result);
992	+	threadAssertTrue(t instanceof CancellationException);
993	+	a.getAndIncrement();
994	+	});
995	+	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
996	+
997	+	checkCompletedWithWrappedCancellationException(g);
998	+	checkCancelled(f);
999	+	assertEquals(1, a.get());
1000	+	}}
1001	+
1002	+	/**
1003	+	* If a whenComplete action throws an exception when triggered by
1004	+	* a normal completion, it completes exceptionally
1005	+	*/
1006	+	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
1007	+	for (boolean createIncomplete : new boolean[] { true, false })
1008	+	for (ExecutionMode m : ExecutionMode.values())
1009	+	for (Integer v1 : new Integer[] { 1, null })
1010	+	{
1011	+	final AtomicInteger a = new AtomicInteger(0);
1012	+	final CFException ex = new CFException();
1013	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
1014	+	if (!createIncomplete) assertTrue(f.complete(v1));
1015	+	final CompletableFuture<Integer> g = m.whenComplete
1016	+	(f,
1017	+	(Integer result, Throwable t) -> {
1018	+	m.checkExecutionMode();
1019	+	threadAssertSame(result, v1);
1020	+	threadAssertNull(t);
1021	+	a.getAndIncrement();
1022	+	throw ex;
1023	+	});
1024	+	if (createIncomplete) assertTrue(f.complete(v1));
1025	+
1026	+	checkCompletedWithWrappedException(g, ex);
1027	+	checkCompletedNormally(f, v1);
1028	+	assertEquals(1, a.get());
1029	+	}}
1030	+
1031	+	/**
1032	+	* If a whenComplete action throws an exception when triggered by
1033	+	* a source completion that also throws an exception, the source
1034	+	* exception takes precedence (unlike handle)
1035	+	*/
1036	+	public void testWhenComplete_sourceFailedActionFailed() {
1037	+	for (boolean createIncomplete : new boolean[] { true, false })
1038	+	for (ExecutionMode m : ExecutionMode.values())
1039	+	{
1040	+	final AtomicInteger a = new AtomicInteger(0);
1041	+	final CFException ex1 = new CFException();
1042	+	final CFException ex2 = new CFException();
1043	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
1044	+
1045	+	if (!createIncomplete) f.completeExceptionally(ex1);
1046	+	final CompletableFuture<Integer> g = m.whenComplete
1047	+	(f,
1048	+	(Integer result, Throwable t) -> {
1049	+	m.checkExecutionMode();
1050	+	threadAssertSame(t, ex1);
1051	+	threadAssertNull(result);
1052	+	a.getAndIncrement();
1053	+	throw ex2;
1054	+	});
1055	+	if (createIncomplete) f.completeExceptionally(ex1);
1056	+
1057	+	checkCompletedWithWrappedException(g, ex1);
1058	+	checkCompletedExceptionally(f, ex1);
1059	+	if (testImplementationDetails) {
1060	+	assertEquals(1, ex1.getSuppressed().length);
1061	+	assertSame(ex2, ex1.getSuppressed()[0]);
1062	+	}
1063		assertEquals(1, a.get());
1064		}}
1065
#	Line 910 | Line 1074 | public class CompletableFutureTest exten
1074		{
1075		final CompletableFuture<Integer> f = new CompletableFuture<>();
1076		final AtomicInteger a = new AtomicInteger(0);
1077	<	if (!createIncomplete) f.complete(v1);
1077	>	if (!createIncomplete) assertTrue(f.complete(v1));
1078		final CompletableFuture<Integer> g = m.handle
1079		(f,
1080	<	(Integer x, Throwable t) -> {
1080	>	(Integer result, Throwable t) -> {
1081		m.checkExecutionMode();
1082	<	threadAssertSame(x, v1);
1082	>	threadAssertSame(result, v1);
1083		threadAssertNull(t);
1084		a.getAndIncrement();
1085		return inc(v1);
1086		});
1087	<	if (createIncomplete) f.complete(v1);
1087	>	if (createIncomplete) assertTrue(f.complete(v1));
1088
1089		checkCompletedNormally(g, inc(v1));
1090		checkCompletedNormally(f, v1);
#	Line 942 | Line 1106 | public class CompletableFutureTest exten
1106		if (!createIncomplete) f.completeExceptionally(ex);
1107		final CompletableFuture<Integer> g = m.handle
1108		(f,
1109	<	(Integer x, Throwable t) -> {
1109	>	(Integer result, Throwable t) -> {
1110		m.checkExecutionMode();
1111	<	threadAssertNull(x);
1111	>	threadAssertNull(result);
1112		threadAssertSame(t, ex);
1113		a.getAndIncrement();
1114		return v1;
#	Line 971 | Line 1135 | public class CompletableFutureTest exten
1135		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1136		final CompletableFuture<Integer> g = m.handle
1137		(f,
1138	<	(Integer x, Throwable t) -> {
1138	>	(Integer result, Throwable t) -> {
1139		m.checkExecutionMode();
1140	<	threadAssertNull(x);
1140	>	threadAssertNull(result);
1141		threadAssertTrue(t instanceof CancellationException);
1142		a.getAndIncrement();
1143		return v1;
#	Line 986 | Line 1150 | public class CompletableFutureTest exten
1150		}}
1151
1152		/**
1153	<	* handle result completes exceptionally if action does
1153	>	* If a "handle action" throws an exception when triggered by
1154	>	* a normal completion, it completes exceptionally
1155		*/
1156	<	public void testHandle_sourceFailedActionFailed() {
1156	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1157		for (ExecutionMode m : ExecutionMode.values())
1158		for (boolean createIncomplete : new boolean[] { true, false })
1159	+	for (Integer v1 : new Integer[] { 1, null })
1160		{
1161		final CompletableFuture<Integer> f = new CompletableFuture<>();
1162		final AtomicInteger a = new AtomicInteger(0);
1163	<	final CFException ex1 = new CFException();
1164	<	final CFException ex2 = new CFException();
999	<	if (!createIncomplete) f.completeExceptionally(ex1);
1163	>	final CFException ex = new CFException();
1164	>	if (!createIncomplete) assertTrue(f.complete(v1));
1165		final CompletableFuture<Integer> g = m.handle
1166		(f,
1167	<	(Integer x, Throwable t) -> {
1167	>	(Integer result, Throwable t) -> {
1168		m.checkExecutionMode();
1169	<	threadAssertNull(x);
1170	<	threadAssertSame(ex1, t);
1169	>	threadAssertSame(result, v1);
1170	>	threadAssertNull(t);
1171		a.getAndIncrement();
1172	<	throw ex2;
1172	>	throw ex;
1173		});
1174	<	if (createIncomplete) f.completeExceptionally(ex1);
1174	>	if (createIncomplete) assertTrue(f.complete(v1));
1175
1176	<	checkCompletedWithWrappedException(g, ex2);
1177	<	checkCompletedExceptionally(f, ex1);
1176	>	checkCompletedWithWrappedException(g, ex);
1177	>	checkCompletedNormally(f, v1);
1178		assertEquals(1, a.get());
1179		}}
1180
1181	<	public void testHandle_sourceCompletedNormallyActionFailed() {
1182	<	for (ExecutionMode m : ExecutionMode.values())
1181	>	/**
1182	>	* If a "handle action" throws an exception when triggered by
1183	>	* a source completion that also throws an exception, the action
1184	>	* exception takes precedence (unlike whenComplete)
1185	>	*/
1186	>	public void testHandle_sourceFailedActionFailed() {
1187		for (boolean createIncomplete : new boolean[] { true, false })
1188	<	for (Integer v1 : new Integer[] { 1, null })
1188	>	for (ExecutionMode m : ExecutionMode.values())
1189		{
1021	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
1190		final AtomicInteger a = new AtomicInteger(0);
1191	<	final CFException ex = new CFException();
1192	<	if (!createIncomplete) f.complete(v1);
1191	>	final CFException ex1 = new CFException();
1192	>	final CFException ex2 = new CFException();
1193	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1194	>
1195	>	if (!createIncomplete) f.completeExceptionally(ex1);
1196		final CompletableFuture<Integer> g = m.handle
1197		(f,
1198	<	(Integer x, Throwable t) -> {
1198	>	(Integer result, Throwable t) -> {
1199		m.checkExecutionMode();
1200	<	threadAssertSame(x, v1);
1201	<	threadAssertNull(t);
1200	>	threadAssertNull(result);
1201	>	threadAssertSame(ex1, t);
1202		a.getAndIncrement();
1203	<	throw ex;
1203	>	throw ex2;
1204		});
1205	<	if (createIncomplete) f.complete(v1);
1205	>	if (createIncomplete) f.completeExceptionally(ex1);
1206
1207	<	checkCompletedWithWrappedException(g, ex);
1208	<	checkCompletedNormally(f, v1);
1207	>	checkCompletedWithWrappedException(g, ex2);
1208	>	checkCompletedExceptionally(f, ex1);
1209		assertEquals(1, a.get());
1210		}}
1211
#	Line 1067 | Line 1238 | public class CompletableFutureTest exten
1238		{
1239		final FailingRunnable r = new FailingRunnable(m);
1240		final CompletableFuture<Void> f = m.runAsync(r);
1241	<	checkCompletedWithWrappedCFException(f);
1241	>	checkCompletedWithWrappedException(f, r.ex);
1242		r.assertInvoked();
1243		}}
1244
1245	+	public void testRunAsync_rejectingExecutor() {
1246	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1247	+	try {
1248	+	CompletableFuture.runAsync(() -> {}, e);
1249	+	shouldThrow();
1250	+	} catch (Throwable t) {
1251	+	assertSame(e.ex, t);
1252	+	}
1253	+
1254	+	assertEquals(1, e.count.get());
1255	+	}
1256	+
1257		/**
1258		* supplyAsync completes with result of supplier
1259		*/
#	Line 1101 | Line 1284 | public class CompletableFutureTest exten
1284		{
1285		FailingSupplier r = new FailingSupplier(m);
1286		CompletableFuture<Integer> f = m.supplyAsync(r);
1287	<	checkCompletedWithWrappedCFException(f);
1287	>	checkCompletedWithWrappedException(f, r.ex);
1288		r.assertInvoked();
1289		}}
1290
1291	+	public void testSupplyAsync_rejectingExecutor() {
1292	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1293	+	try {
1294	+	CompletableFuture.supplyAsync(() -> null, e);
1295	+	shouldThrow();
1296	+	} catch (Throwable t) {
1297	+	assertSame(e.ex, t);
1298	+	}
1299	+
1300	+	assertEquals(1, e.count.get());
1301	+	}
1302	+
1303		// seq completion methods
1304
1305		/**
#	Line 1112 | Line 1307 | public class CompletableFutureTest exten
1307		*/
1308		public void testThenRun_normalCompletion() {
1309		for (ExecutionMode m : ExecutionMode.values())
1115	–	for (boolean createIncomplete : new boolean[] { true, false })
1310		for (Integer v1 : new Integer[] { 1, null })
1311		{
1312		final CompletableFuture<Integer> f = new CompletableFuture<>();
1313	<	final Noop r = new Noop(m);
1314	<	if (!createIncomplete) f.complete(v1);
1121	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1122	<	if (createIncomplete) {
1123	<	checkIncomplete(g);
1124	<	f.complete(v1);
1125	<	}
1313	>	final Noop[] rs = new Noop[6];
1314	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1315
1316	<	checkCompletedNormally(g, null);
1316	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1317	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1318	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1319	>	checkIncomplete(h0);
1320	>	checkIncomplete(h1);
1321	>	checkIncomplete(h2);
1322	>	assertTrue(f.complete(v1));
1323	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1324	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1325	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1326	>
1327	>	checkCompletedNormally(h0, null);
1328	>	checkCompletedNormally(h1, null);
1329	>	checkCompletedNormally(h2, null);
1330	>	checkCompletedNormally(h3, null);
1331	>	checkCompletedNormally(h4, null);
1332	>	checkCompletedNormally(h5, null);
1333		checkCompletedNormally(f, v1);
1334	<	r.assertInvoked();
1334	>	for (Noop r : rs) r.assertInvoked();
1335		}}
1336
1337		/**
#	Line 1135 | Line 1340 | public class CompletableFutureTest exten
1340		*/
1341		public void testThenRun_exceptionalCompletion() {
1342		for (ExecutionMode m : ExecutionMode.values())
1138	–	for (boolean createIncomplete : new boolean[] { true, false })
1343		{
1344		final CFException ex = new CFException();
1345		final CompletableFuture<Integer> f = new CompletableFuture<>();
1346	<	final Noop r = new Noop(m);
1347	<	if (!createIncomplete) f.completeExceptionally(ex);
1144	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1145	<	if (createIncomplete) {
1146	<	checkIncomplete(g);
1147	<	f.completeExceptionally(ex);
1148	<	}
1346	>	final Noop[] rs = new Noop[6];
1347	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1348
1349	<	checkCompletedWithWrappedException(g, ex);
1349	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1350	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1351	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1352	>	checkIncomplete(h0);
1353	>	checkIncomplete(h1);
1354	>	checkIncomplete(h2);
1355	>	assertTrue(f.completeExceptionally(ex));
1356	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1357	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1358	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1359	>
1360	>	checkCompletedWithWrappedException(h0, ex);
1361	>	checkCompletedWithWrappedException(h1, ex);
1362	>	checkCompletedWithWrappedException(h2, ex);
1363	>	checkCompletedWithWrappedException(h3, ex);
1364	>	checkCompletedWithWrappedException(h4, ex);
1365	>	checkCompletedWithWrappedException(h5, ex);
1366		checkCompletedExceptionally(f, ex);
1367	<	r.assertNotInvoked();
1367	>	for (Noop r : rs) r.assertNotInvoked();
1368		}}
1369
1370		/**
#	Line 1157 | Line 1372 | public class CompletableFutureTest exten
1372		*/
1373		public void testThenRun_sourceCancelled() {
1374		for (ExecutionMode m : ExecutionMode.values())
1160	–	for (boolean createIncomplete : new boolean[] { true, false })
1375		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1376		{
1377		final CompletableFuture<Integer> f = new CompletableFuture<>();
1378	<	final Noop r = new Noop(m);
1379	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1166	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1167	<	if (createIncomplete) {
1168	<	checkIncomplete(g);
1169	<	assertTrue(f.cancel(mayInterruptIfRunning));
1170	<	}
1378	>	final Noop[] rs = new Noop[6];
1379	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1380
1381	<	checkCompletedWithWrappedCancellationException(g);
1381	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1382	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1383	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1384	>	checkIncomplete(h0);
1385	>	checkIncomplete(h1);
1386	>	checkIncomplete(h2);
1387	>	assertTrue(f.cancel(mayInterruptIfRunning));
1388	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1389	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1390	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1391	>
1392	>	checkCompletedWithWrappedCancellationException(h0);
1393	>	checkCompletedWithWrappedCancellationException(h1);
1394	>	checkCompletedWithWrappedCancellationException(h2);
1395	>	checkCompletedWithWrappedCancellationException(h3);
1396	>	checkCompletedWithWrappedCancellationException(h4);
1397	>	checkCompletedWithWrappedCancellationException(h5);
1398		checkCancelled(f);
1399	<	r.assertNotInvoked();
1399	>	for (Noop r : rs) r.assertNotInvoked();
1400		}}
1401
1402		/**
#	Line 1179 | Line 1404 | public class CompletableFutureTest exten
1404		*/
1405		public void testThenRun_actionFailed() {
1406		for (ExecutionMode m : ExecutionMode.values())
1182	–	for (boolean createIncomplete : new boolean[] { true, false })
1407		for (Integer v1 : new Integer[] { 1, null })
1408		{
1409		final CompletableFuture<Integer> f = new CompletableFuture<>();
1410	<	final FailingRunnable r = new FailingRunnable(m);
1411	<	if (!createIncomplete) f.complete(v1);
1188	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1189	<	if (createIncomplete) {
1190	<	checkIncomplete(g);
1191	<	f.complete(v1);
1192	<	}
1410	>	final FailingRunnable[] rs = new FailingRunnable[6];
1411	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1412
1413	<	checkCompletedWithWrappedCFException(g);
1413	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1414	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1415	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1416	>	assertTrue(f.complete(v1));
1417	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1418	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1419	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1420	>
1421	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1422	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1423	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1424	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1425	>	checkCompletedWithWrappedException(h4, rs[4].ex);
1426	>	checkCompletedWithWrappedException(h5, rs[5].ex);
1427		checkCompletedNormally(f, v1);
1428		}}
1429
#	Line 1200 | Line 1432 | public class CompletableFutureTest exten
1432		*/
1433		public void testThenApply_normalCompletion() {
1434		for (ExecutionMode m : ExecutionMode.values())
1203	–	for (boolean createIncomplete : new boolean[] { true, false })
1435		for (Integer v1 : new Integer[] { 1, null })
1436		{
1437		final CompletableFuture<Integer> f = new CompletableFuture<>();
1438	<	final IncFunction r = new IncFunction(m);
1439	<	if (!createIncomplete) f.complete(v1);
1209	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1210	<	if (createIncomplete) {
1211	<	checkIncomplete(g);
1212	<	f.complete(v1);
1213	<	}
1438	>	final IncFunction[] rs = new IncFunction[4];
1439	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1440
1441	<	checkCompletedNormally(g, inc(v1));
1441	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1442	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1443	>	checkIncomplete(h0);
1444	>	checkIncomplete(h1);
1445	>	assertTrue(f.complete(v1));
1446	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1447	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1448	>
1449	>	checkCompletedNormally(h0, inc(v1));
1450	>	checkCompletedNormally(h1, inc(v1));
1451	>	checkCompletedNormally(h2, inc(v1));
1452	>	checkCompletedNormally(h3, inc(v1));
1453		checkCompletedNormally(f, v1);
1454	<	r.assertValue(inc(v1));
1454	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1455		}}
1456
1457		/**
#	Line 1223 | Line 1460 | public class CompletableFutureTest exten
1460		*/
1461		public void testThenApply_exceptionalCompletion() {
1462		for (ExecutionMode m : ExecutionMode.values())
1226	–	for (boolean createIncomplete : new boolean[] { true, false })
1463		{
1464		final CFException ex = new CFException();
1465		final CompletableFuture<Integer> f = new CompletableFuture<>();
1466	<	final IncFunction r = new IncFunction(m);
1467	<	if (!createIncomplete) f.completeExceptionally(ex);
1232	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1233	<	if (createIncomplete) {
1234	<	checkIncomplete(g);
1235	<	f.completeExceptionally(ex);
1236	<	}
1466	>	final IncFunction[] rs = new IncFunction[4];
1467	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1468
1469	<	checkCompletedWithWrappedException(g, ex);
1469	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1470	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1471	>	assertTrue(f.completeExceptionally(ex));
1472	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1473	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1474	>
1475	>	checkCompletedWithWrappedException(h0, ex);
1476	>	checkCompletedWithWrappedException(h1, ex);
1477	>	checkCompletedWithWrappedException(h2, ex);
1478	>	checkCompletedWithWrappedException(h3, ex);
1479		checkCompletedExceptionally(f, ex);
1480	<	r.assertNotInvoked();
1480	>	for (IncFunction r : rs) r.assertNotInvoked();
1481		}}
1482
1483		/**
#	Line 1245 | Line 1485 | public class CompletableFutureTest exten
1485		*/
1486		public void testThenApply_sourceCancelled() {
1487		for (ExecutionMode m : ExecutionMode.values())
1248	–	for (boolean createIncomplete : new boolean[] { true, false })
1488		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1489		{
1490		final CompletableFuture<Integer> f = new CompletableFuture<>();
1491	<	final IncFunction r = new IncFunction(m);
1492	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1254	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1255	<	if (createIncomplete) {
1256	<	checkIncomplete(g);
1257	<	assertTrue(f.cancel(mayInterruptIfRunning));
1258	<	}
1491	>	final IncFunction[] rs = new IncFunction[4];
1492	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1493
1494	<	checkCompletedWithWrappedCancellationException(g);
1494	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1495	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1496	>	assertTrue(f.cancel(mayInterruptIfRunning));
1497	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1498	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1499	>
1500	>	checkCompletedWithWrappedCancellationException(h0);
1501	>	checkCompletedWithWrappedCancellationException(h1);
1502	>	checkCompletedWithWrappedCancellationException(h2);
1503	>	checkCompletedWithWrappedCancellationException(h3);
1504		checkCancelled(f);
1505	<	r.assertNotInvoked();
1505	>	for (IncFunction r : rs) r.assertNotInvoked();
1506		}}
1507
1508		/**
#	Line 1267 | Line 1510 | public class CompletableFutureTest exten
1510		*/
1511		public void testThenApply_actionFailed() {
1512		for (ExecutionMode m : ExecutionMode.values())
1270	–	for (boolean createIncomplete : new boolean[] { true, false })
1513		for (Integer v1 : new Integer[] { 1, null })
1514		{
1515		final CompletableFuture<Integer> f = new CompletableFuture<>();
1516	<	final FailingFunction r = new FailingFunction(m);
1517	<	if (!createIncomplete) f.complete(v1);
1276	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1277	<	if (createIncomplete) {
1278	<	checkIncomplete(g);
1279	<	f.complete(v1);
1280	<	}
1516	>	final FailingFunction[] rs = new FailingFunction[4];
1517	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1518
1519	<	checkCompletedWithWrappedCFException(g);
1519	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1520	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1521	>	assertTrue(f.complete(v1));
1522	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1523	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1524	>
1525	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1526	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1527	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1528	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1529		checkCompletedNormally(f, v1);
1530		}}
1531
#	Line 1288 | Line 1534 | public class CompletableFutureTest exten
1534		*/
1535		public void testThenAccept_normalCompletion() {
1536		for (ExecutionMode m : ExecutionMode.values())
1291	–	for (boolean createIncomplete : new boolean[] { true, false })
1537		for (Integer v1 : new Integer[] { 1, null })
1538		{
1539		final CompletableFuture<Integer> f = new CompletableFuture<>();
1540	<	final NoopConsumer r = new NoopConsumer(m);
1541	<	if (!createIncomplete) f.complete(v1);
1297	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1298	<	if (createIncomplete) {
1299	<	checkIncomplete(g);
1300	<	f.complete(v1);
1301	<	}
1540	>	final NoopConsumer[] rs = new NoopConsumer[4];
1541	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1542
1543	<	checkCompletedNormally(g, null);
1544	<	r.assertValue(v1);
1543	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1544	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1545	>	checkIncomplete(h0);
1546	>	checkIncomplete(h1);
1547	>	assertTrue(f.complete(v1));
1548	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1549	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1550	>
1551	>	checkCompletedNormally(h0, null);
1552	>	checkCompletedNormally(h1, null);
1553	>	checkCompletedNormally(h2, null);
1554	>	checkCompletedNormally(h3, null);
1555		checkCompletedNormally(f, v1);
1556	+	for (NoopConsumer r : rs) r.assertValue(v1);
1557		}}
1558
1559		/**
#	Line 1311 | Line 1562 | public class CompletableFutureTest exten
1562		*/
1563		public void testThenAccept_exceptionalCompletion() {
1564		for (ExecutionMode m : ExecutionMode.values())
1314	–	for (boolean createIncomplete : new boolean[] { true, false })
1565		{
1566		final CFException ex = new CFException();
1567		final CompletableFuture<Integer> f = new CompletableFuture<>();
1568	<	final NoopConsumer r = new NoopConsumer(m);
1569	<	if (!createIncomplete) f.completeExceptionally(ex);
1320	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1321	<	if (createIncomplete) {
1322	<	checkIncomplete(g);
1323	<	f.completeExceptionally(ex);
1324	<	}
1568	>	final NoopConsumer[] rs = new NoopConsumer[4];
1569	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1570
1571	<	checkCompletedWithWrappedException(g, ex);
1571	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1572	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1573	>	assertTrue(f.completeExceptionally(ex));
1574	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1575	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1576	>
1577	>	checkCompletedWithWrappedException(h0, ex);
1578	>	checkCompletedWithWrappedException(h1, ex);
1579	>	checkCompletedWithWrappedException(h2, ex);
1580	>	checkCompletedWithWrappedException(h3, ex);
1581		checkCompletedExceptionally(f, ex);
1582	<	r.assertNotInvoked();
1582	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1583		}}
1584
1585		/**
#	Line 1333 | Line 1587 | public class CompletableFutureTest exten
1587		*/
1588		public void testThenAccept_sourceCancelled() {
1589		for (ExecutionMode m : ExecutionMode.values())
1336	–	for (boolean createIncomplete : new boolean[] { true, false })
1590		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1591		{
1592		final CompletableFuture<Integer> f = new CompletableFuture<>();
1593	<	final NoopConsumer r = new NoopConsumer(m);
1594	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1342	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1343	<	if (createIncomplete) {
1344	<	checkIncomplete(g);
1345	<	assertTrue(f.cancel(mayInterruptIfRunning));
1346	<	}
1593	>	final NoopConsumer[] rs = new NoopConsumer[4];
1594	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1595
1596	<	checkCompletedWithWrappedCancellationException(g);
1596	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1597	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1598	>	assertTrue(f.cancel(mayInterruptIfRunning));
1599	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1600	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1601	>
1602	>	checkCompletedWithWrappedCancellationException(h0);
1603	>	checkCompletedWithWrappedCancellationException(h1);
1604	>	checkCompletedWithWrappedCancellationException(h2);
1605	>	checkCompletedWithWrappedCancellationException(h3);
1606		checkCancelled(f);
1607	<	r.assertNotInvoked();
1607	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1608		}}
1609
1610		/**
#	Line 1355 | Line 1612 | public class CompletableFutureTest exten
1612		*/
1613		public void testThenAccept_actionFailed() {
1614		for (ExecutionMode m : ExecutionMode.values())
1358	–	for (boolean createIncomplete : new boolean[] { true, false })
1615		for (Integer v1 : new Integer[] { 1, null })
1616		{
1617		final CompletableFuture<Integer> f = new CompletableFuture<>();
1618	<	final FailingConsumer r = new FailingConsumer(m);
1619	<	if (!createIncomplete) f.complete(v1);
1364	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1365	<	if (createIncomplete) {
1366	<	checkIncomplete(g);
1367	<	f.complete(v1);
1368	<	}
1618	>	final FailingConsumer[] rs = new FailingConsumer[4];
1619	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1620
1621	<	checkCompletedWithWrappedCFException(g);
1621	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1622	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1623	>	assertTrue(f.complete(v1));
1624	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1625	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1626	>
1627	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1628	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1629	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1630	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1631		checkCompletedNormally(f, v1);
1632		}}
1633
#	Line 1377 | Line 1637 | public class CompletableFutureTest exten
1637		*/
1638		public void testThenCombine_normalCompletion() {
1639		for (ExecutionMode m : ExecutionMode.values())
1380	–	for (boolean createIncomplete : new boolean[] { true, false })
1640		for (boolean fFirst : new boolean[] { true, false })
1641		for (Integer v1 : new Integer[] { 1, null })
1642		for (Integer v2 : new Integer[] { 2, null })
1643		{
1644		final CompletableFuture<Integer> f = new CompletableFuture<>();
1645		final CompletableFuture<Integer> g = new CompletableFuture<>();
1646	<	final SubtractFunction r = new SubtractFunction(m);
1646	>	final SubtractFunction[] rs = new SubtractFunction[6];
1647	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1648
1649	<	if (fFirst) f.complete(v1); else g.complete(v2);
1650	<	if (!createIncomplete)
1651	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1652	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1653	<	if (createIncomplete) {
1654	<	checkIncomplete(h);
1655	<	r.assertNotInvoked();
1656	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1657	<	}
1649	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1650	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1651	>	final Integer w1 =  fFirst ? v1 : v2;
1652	>	final Integer w2 = !fFirst ? v1 : v2;
1653	>
1654	>	final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1655	>	final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1656	>	assertTrue(fst.complete(w1));
1657	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1658	>	final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1659	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1660	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1661	>	checkCompletedNormally(h1, subtract(w1, w1));
1662	>	checkCompletedNormally(h3, subtract(w1, w1));
1663	>	rs[1].assertValue(subtract(w1, w1));
1664	>	rs[3].assertValue(subtract(w1, w1));
1665	>	assertTrue(snd.complete(w2));
1666	>	final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1667	>
1668	>	checkCompletedNormally(h0, subtract(v1, v2));
1669	>	checkCompletedNormally(h2, subtract(v1, v2));
1670	>	checkCompletedNormally(h4, subtract(v1, v2));
1671	>	rs[0].assertValue(subtract(v1, v2));
1672	>	rs[2].assertValue(subtract(v1, v2));
1673	>	rs[4].assertValue(subtract(v1, v2));
1674
1399	–	checkCompletedNormally(h, subtract(v1, v2));
1675		checkCompletedNormally(f, v1);
1676		checkCompletedNormally(g, v2);
1402	–	r.assertValue(subtract(v1, v2));
1677		}}
1678
1679		/**
1680		* thenCombine result completes exceptionally after exceptional
1681		* completion of either source
1682		*/
1683	<	public void testThenCombine_exceptionalCompletion() {
1683	>	public void testThenCombine_exceptionalCompletion() throws Throwable {
1684		for (ExecutionMode m : ExecutionMode.values())
1411	–	for (boolean createIncomplete : new boolean[] { true, false })
1685		for (boolean fFirst : new boolean[] { true, false })
1686	+	for (boolean failFirst : new boolean[] { true, false })
1687		for (Integer v1 : new Integer[] { 1, null })
1688		{
1689		final CompletableFuture<Integer> f = new CompletableFuture<>();
1690		final CompletableFuture<Integer> g = new CompletableFuture<>();
1691		final CFException ex = new CFException();
1692	<	final SubtractFunction r = new SubtractFunction(m);
1693	<
1694	<	(fFirst ? f : g).complete(v1);
1695	<	if (!createIncomplete)
1696	<	(!fFirst ? f : g).completeExceptionally(ex);
1697	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1698	<	if (createIncomplete) {
1699	<	checkIncomplete(h);
1700	<	(!fFirst ? f : g).completeExceptionally(ex);
1701	<	}
1692	>	final SubtractFunction r1 = new SubtractFunction(m);
1693	>	final SubtractFunction r2 = new SubtractFunction(m);
1694	>	final SubtractFunction r3 = new SubtractFunction(m);
1695	>
1696	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1697	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1698	>	final Callable<Boolean> complete1 = failFirst ?
1699	>	() -> fst.completeExceptionally(ex) :
1700	>	() -> fst.complete(v1);
1701	>	final Callable<Boolean> complete2 = failFirst ?
1702	>	() -> snd.complete(v1) :
1703	>	() -> snd.completeExceptionally(ex);
1704	>
1705	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1706	>	assertTrue(complete1.call());
1707	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1708	>	checkIncomplete(h1);
1709	>	checkIncomplete(h2);
1710	>	assertTrue(complete2.call());
1711	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1712
1713	<	checkCompletedWithWrappedException(h, ex);
1714	<	r.assertNotInvoked();
1715	<	checkCompletedNormally(fFirst ? f : g, v1);
1716	<	checkCompletedExceptionally(!fFirst ? f : g, ex);
1713	>	checkCompletedWithWrappedException(h1, ex);
1714	>	checkCompletedWithWrappedException(h2, ex);
1715	>	checkCompletedWithWrappedException(h3, ex);
1716	>	r1.assertNotInvoked();
1717	>	r2.assertNotInvoked();
1718	>	r3.assertNotInvoked();
1719	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1720	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1721		}}
1722
1723		/**
1724		* thenCombine result completes exceptionally if either source cancelled
1725		*/
1726	<	public void testThenCombine_sourceCancelled() {
1726	>	public void testThenCombine_sourceCancelled() throws Throwable {
1727		for (ExecutionMode m : ExecutionMode.values())
1728		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1441	–	for (boolean createIncomplete : new boolean[] { true, false })
1729		for (boolean fFirst : new boolean[] { true, false })
1730	+	for (boolean failFirst : new boolean[] { true, false })
1731		for (Integer v1 : new Integer[] { 1, null })
1732		{
1733		final CompletableFuture<Integer> f = new CompletableFuture<>();
1734		final CompletableFuture<Integer> g = new CompletableFuture<>();
1735	<	final SubtractFunction r = new SubtractFunction(m);
1736	<
1737	<	(fFirst ? f : g).complete(v1);
1738	<	if (!createIncomplete)
1739	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1740	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1741	<	if (createIncomplete) {
1742	<	checkIncomplete(h);
1743	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1744	<	}
1735	>	final SubtractFunction r1 = new SubtractFunction(m);
1736	>	final SubtractFunction r2 = new SubtractFunction(m);
1737	>	final SubtractFunction r3 = new SubtractFunction(m);
1738	>
1739	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1740	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1741	>	final Callable<Boolean> complete1 = failFirst ?
1742	>	() -> fst.cancel(mayInterruptIfRunning) :
1743	>	() -> fst.complete(v1);
1744	>	final Callable<Boolean> complete2 = failFirst ?
1745	>	() -> snd.complete(v1) :
1746	>	() -> snd.cancel(mayInterruptIfRunning);
1747	>
1748	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1749	>	assertTrue(complete1.call());
1750	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1751	>	checkIncomplete(h1);
1752	>	checkIncomplete(h2);
1753	>	assertTrue(complete2.call());
1754	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1755
1756	<	checkCompletedWithWrappedCancellationException(h);
1757	<	checkCancelled(!fFirst ? f : g);
1758	<	r.assertNotInvoked();
1759	<	checkCompletedNormally(fFirst ? f : g, v1);
1756	>	checkCompletedWithWrappedCancellationException(h1);
1757	>	checkCompletedWithWrappedCancellationException(h2);
1758	>	checkCompletedWithWrappedCancellationException(h3);
1759	>	r1.assertNotInvoked();
1760	>	r2.assertNotInvoked();
1761	>	r3.assertNotInvoked();
1762	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1763	>	checkCancelled(failFirst ? fst : snd);
1764		}}
1765
1766		/**
#	Line 1472 | Line 1774 | public class CompletableFutureTest exten
1774		{
1775		final CompletableFuture<Integer> f = new CompletableFuture<>();
1776		final CompletableFuture<Integer> g = new CompletableFuture<>();
1777	<	final FailingBiFunction r = new FailingBiFunction(m);
1778	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1779	<
1780	<	if (fFirst) {
1781	<	f.complete(v1);
1782	<	g.complete(v2);
1783	<	} else {
1784	<	g.complete(v2);
1785	<	f.complete(v1);
1786	<	}
1787	<
1788	<	checkCompletedWithWrappedCFException(h);
1777	>	final FailingBiFunction r1 = new FailingBiFunction(m);
1778	>	final FailingBiFunction r2 = new FailingBiFunction(m);
1779	>	final FailingBiFunction r3 = new FailingBiFunction(m);
1780	>
1781	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1782	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1783	>	final Integer w1 =  fFirst ? v1 : v2;
1784	>	final Integer w2 = !fFirst ? v1 : v2;
1785	>
1786	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1787	>	assertTrue(fst.complete(w1));
1788	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1789	>	assertTrue(snd.complete(w2));
1790	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1791	>
1792	>	checkCompletedWithWrappedException(h1, r1.ex);
1793	>	checkCompletedWithWrappedException(h2, r2.ex);
1794	>	checkCompletedWithWrappedException(h3, r3.ex);
1795	>	r1.assertInvoked();
1796	>	r2.assertInvoked();
1797	>	r3.assertInvoked();
1798		checkCompletedNormally(f, v1);
1799		checkCompletedNormally(g, v2);
1800		}}
#	Line 1494 | Line 1805 | public class CompletableFutureTest exten
1805		*/
1806		public void testThenAcceptBoth_normalCompletion() {
1807		for (ExecutionMode m : ExecutionMode.values())
1497	–	for (boolean createIncomplete : new boolean[] { true, false })
1808		for (boolean fFirst : new boolean[] { true, false })
1809		for (Integer v1 : new Integer[] { 1, null })
1810		for (Integer v2 : new Integer[] { 2, null })
1811		{
1812		final CompletableFuture<Integer> f = new CompletableFuture<>();
1813		final CompletableFuture<Integer> g = new CompletableFuture<>();
1814	<	final SubtractAction r = new SubtractAction(m);
1815	<
1816	<	if (fFirst) f.complete(v1); else g.complete(v2);
1817	<	if (!createIncomplete)
1818	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1819	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1820	<	if (createIncomplete) {
1821	<	checkIncomplete(h);
1822	<	r.assertNotInvoked();
1823	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1824	<	}
1814	>	final SubtractAction r1 = new SubtractAction(m);
1815	>	final SubtractAction r2 = new SubtractAction(m);
1816	>	final SubtractAction r3 = new SubtractAction(m);
1817	>
1818	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1819	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1820	>	final Integer w1 =  fFirst ? v1 : v2;
1821	>	final Integer w2 = !fFirst ? v1 : v2;
1822	>
1823	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1824	>	assertTrue(fst.complete(w1));
1825	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1826	>	checkIncomplete(h1);
1827	>	checkIncomplete(h2);
1828	>	r1.assertNotInvoked();
1829	>	r2.assertNotInvoked();
1830	>	assertTrue(snd.complete(w2));
1831	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1832
1833	<	checkCompletedNormally(h, null);
1834	<	r.assertValue(subtract(v1, v2));
1833	>	checkCompletedNormally(h1, null);
1834	>	checkCompletedNormally(h2, null);
1835	>	checkCompletedNormally(h3, null);
1836	>	r1.assertValue(subtract(v1, v2));
1837	>	r2.assertValue(subtract(v1, v2));
1838	>	r3.assertValue(subtract(v1, v2));
1839		checkCompletedNormally(f, v1);
1840		checkCompletedNormally(g, v2);
1841		}}
#	Line 1523 | Line 1844 | public class CompletableFutureTest exten
1844		* thenAcceptBoth result completes exceptionally after exceptional
1845		* completion of either source
1846		*/
1847	<	public void testThenAcceptBoth_exceptionalCompletion() {
1847	>	public void testThenAcceptBoth_exceptionalCompletion() throws Throwable {
1848		for (ExecutionMode m : ExecutionMode.values())
1528	–	for (boolean createIncomplete : new boolean[] { true, false })
1849		for (boolean fFirst : new boolean[] { true, false })
1850	+	for (boolean failFirst : new boolean[] { true, false })
1851		for (Integer v1 : new Integer[] { 1, null })
1852		{
1853		final CompletableFuture<Integer> f = new CompletableFuture<>();
1854		final CompletableFuture<Integer> g = new CompletableFuture<>();
1855		final CFException ex = new CFException();
1856	<	final SubtractAction r = new SubtractAction(m);
1857	<
1858	<	(fFirst ? f : g).complete(v1);
1859	<	if (!createIncomplete)
1860	<	(!fFirst ? f : g).completeExceptionally(ex);
1861	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1862	<	if (createIncomplete) {
1863	<	checkIncomplete(h);
1864	<	(!fFirst ? f : g).completeExceptionally(ex);
1865	<	}
1856	>	final SubtractAction r1 = new SubtractAction(m);
1857	>	final SubtractAction r2 = new SubtractAction(m);
1858	>	final SubtractAction r3 = new SubtractAction(m);
1859	>
1860	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1861	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1862	>	final Callable<Boolean> complete1 = failFirst ?
1863	>	() -> fst.completeExceptionally(ex) :
1864	>	() -> fst.complete(v1);
1865	>	final Callable<Boolean> complete2 = failFirst ?
1866	>	() -> snd.complete(v1) :
1867	>	() -> snd.completeExceptionally(ex);
1868	>
1869	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1870	>	assertTrue(complete1.call());
1871	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1872	>	checkIncomplete(h1);
1873	>	checkIncomplete(h2);
1874	>	assertTrue(complete2.call());
1875	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1876
1877	<	checkCompletedWithWrappedException(h, ex);
1878	<	r.assertNotInvoked();
1879	<	checkCompletedNormally(fFirst ? f : g, v1);
1880	<	checkCompletedExceptionally(!fFirst ? f : g, ex);
1877	>	checkCompletedWithWrappedException(h1, ex);
1878	>	checkCompletedWithWrappedException(h2, ex);
1879	>	checkCompletedWithWrappedException(h3, ex);
1880	>	r1.assertNotInvoked();
1881	>	r2.assertNotInvoked();
1882	>	r3.assertNotInvoked();
1883	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1884	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1885		}}
1886
1887		/**
1888		* thenAcceptBoth result completes exceptionally if either source cancelled
1889		*/
1890	<	public void testThenAcceptBoth_sourceCancelled() {
1890	>	public void testThenAcceptBoth_sourceCancelled() throws Throwable {
1891		for (ExecutionMode m : ExecutionMode.values())
1892		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1558	–	for (boolean createIncomplete : new boolean[] { true, false })
1893		for (boolean fFirst : new boolean[] { true, false })
1894	+	for (boolean failFirst : new boolean[] { true, false })
1895		for (Integer v1 : new Integer[] { 1, null })
1896		{
1897		final CompletableFuture<Integer> f = new CompletableFuture<>();
1898		final CompletableFuture<Integer> g = new CompletableFuture<>();
1899	<	final SubtractAction r = new SubtractAction(m);
1900	<
1901	<	(fFirst ? f : g).complete(v1);
1902	<	if (!createIncomplete)
1903	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1904	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1905	<	if (createIncomplete) {
1906	<	checkIncomplete(h);
1907	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1908	<	}
1899	>	final SubtractAction r1 = new SubtractAction(m);
1900	>	final SubtractAction r2 = new SubtractAction(m);
1901	>	final SubtractAction r3 = new SubtractAction(m);
1902	>
1903	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1904	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1905	>	final Callable<Boolean> complete1 = failFirst ?
1906	>	() -> fst.cancel(mayInterruptIfRunning) :
1907	>	() -> fst.complete(v1);
1908	>	final Callable<Boolean> complete2 = failFirst ?
1909	>	() -> snd.complete(v1) :
1910	>	() -> snd.cancel(mayInterruptIfRunning);
1911	>
1912	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1913	>	assertTrue(complete1.call());
1914	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1915	>	checkIncomplete(h1);
1916	>	checkIncomplete(h2);
1917	>	assertTrue(complete2.call());
1918	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1919
1920	<	checkCompletedWithWrappedCancellationException(h);
1921	<	checkCancelled(!fFirst ? f : g);
1922	<	r.assertNotInvoked();
1923	<	checkCompletedNormally(fFirst ? f : g, v1);
1920	>	checkCompletedWithWrappedCancellationException(h1);
1921	>	checkCompletedWithWrappedCancellationException(h2);
1922	>	checkCompletedWithWrappedCancellationException(h3);
1923	>	r1.assertNotInvoked();
1924	>	r2.assertNotInvoked();
1925	>	r3.assertNotInvoked();
1926	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1927	>	checkCancelled(failFirst ? fst : snd);
1928		}}
1929
1930		/**
#	Line 1589 | Line 1938 | public class CompletableFutureTest exten
1938		{
1939		final CompletableFuture<Integer> f = new CompletableFuture<>();
1940		final CompletableFuture<Integer> g = new CompletableFuture<>();
1941	<	final FailingBiConsumer r = new FailingBiConsumer(m);
1942	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1943	<
1944	<	if (fFirst) {
1945	<	f.complete(v1);
1946	<	g.complete(v2);
1947	<	} else {
1948	<	g.complete(v2);
1949	<	f.complete(v1);
1950	<	}
1951	<
1952	<	checkCompletedWithWrappedCFException(h);
1941	>	final FailingBiConsumer r1 = new FailingBiConsumer(m);
1942	>	final FailingBiConsumer r2 = new FailingBiConsumer(m);
1943	>	final FailingBiConsumer r3 = new FailingBiConsumer(m);
1944	>
1945	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1946	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1947	>	final Integer w1 =  fFirst ? v1 : v2;
1948	>	final Integer w2 = !fFirst ? v1 : v2;
1949	>
1950	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1951	>	assertTrue(fst.complete(w1));
1952	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1953	>	assertTrue(snd.complete(w2));
1954	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1955	>
1956	>	checkCompletedWithWrappedException(h1, r1.ex);
1957	>	checkCompletedWithWrappedException(h2, r2.ex);
1958	>	checkCompletedWithWrappedException(h3, r3.ex);
1959	>	r1.assertInvoked();
1960	>	r2.assertInvoked();
1961	>	r3.assertInvoked();
1962		checkCompletedNormally(f, v1);
1963		checkCompletedNormally(g, v2);
1964		}}
#	Line 1611 | Line 1969 | public class CompletableFutureTest exten
1969		*/
1970		public void testRunAfterBoth_normalCompletion() {
1971		for (ExecutionMode m : ExecutionMode.values())
1614	–	for (boolean createIncomplete : new boolean[] { true, false })
1972		for (boolean fFirst : new boolean[] { true, false })
1973		for (Integer v1 : new Integer[] { 1, null })
1974		for (Integer v2 : new Integer[] { 2, null })
1975		{
1976		final CompletableFuture<Integer> f = new CompletableFuture<>();
1977		final CompletableFuture<Integer> g = new CompletableFuture<>();
1978	<	final Noop r = new Noop(m);
1979	<
1980	<	if (fFirst) f.complete(v1); else g.complete(v2);
1981	<	if (!createIncomplete)
1982	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1983	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1984	<	if (createIncomplete) {
1985	<	checkIncomplete(h);
1986	<	r.assertNotInvoked();
1987	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1988	<	}
1978	>	final Noop r1 = new Noop(m);
1979	>	final Noop r2 = new Noop(m);
1980	>	final Noop r3 = new Noop(m);
1981	>
1982	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1983	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1984	>	final Integer w1 =  fFirst ? v1 : v2;
1985	>	final Integer w2 = !fFirst ? v1 : v2;
1986	>
1987	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1988	>	assertTrue(fst.complete(w1));
1989	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1990	>	checkIncomplete(h1);
1991	>	checkIncomplete(h2);
1992	>	r1.assertNotInvoked();
1993	>	r2.assertNotInvoked();
1994	>	assertTrue(snd.complete(w2));
1995	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
1996
1997	<	checkCompletedNormally(h, null);
1998	<	r.assertInvoked();
1997	>	checkCompletedNormally(h1, null);
1998	>	checkCompletedNormally(h2, null);
1999	>	checkCompletedNormally(h3, null);
2000	>	r1.assertInvoked();
2001	>	r2.assertInvoked();
2002	>	r3.assertInvoked();
2003		checkCompletedNormally(f, v1);
2004		checkCompletedNormally(g, v2);
2005		}}
#	Line 1640 | Line 2008 | public class CompletableFutureTest exten
2008		* runAfterBoth result completes exceptionally after exceptional
2009		* completion of either source
2010		*/
2011	<	public void testRunAfterBoth_exceptionalCompletion() {
2011	>	public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
2012		for (ExecutionMode m : ExecutionMode.values())
1645	–	for (boolean createIncomplete : new boolean[] { true, false })
2013		for (boolean fFirst : new boolean[] { true, false })
2014	+	for (boolean failFirst : new boolean[] { true, false })
2015		for (Integer v1 : new Integer[] { 1, null })
2016		{
2017		final CompletableFuture<Integer> f = new CompletableFuture<>();
2018		final CompletableFuture<Integer> g = new CompletableFuture<>();
2019		final CFException ex = new CFException();
2020	<	final Noop r = new Noop(m);
2021	<
2022	<	(fFirst ? f : g).complete(v1);
2023	<	if (!createIncomplete)
2024	<	(!fFirst ? f : g).completeExceptionally(ex);
2025	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2026	<	if (createIncomplete) {
2027	<	checkIncomplete(h);
2028	<	(!fFirst ? f : g).completeExceptionally(ex);
2029	<	}
2020	>	final Noop r1 = new Noop(m);
2021	>	final Noop r2 = new Noop(m);
2022	>	final Noop r3 = new Noop(m);
2023	>
2024	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2025	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2026	>	final Callable<Boolean> complete1 = failFirst ?
2027	>	() -> fst.completeExceptionally(ex) :
2028	>	() -> fst.complete(v1);
2029	>	final Callable<Boolean> complete2 = failFirst ?
2030	>	() -> snd.complete(v1) :
2031	>	() -> snd.completeExceptionally(ex);
2032	>
2033	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2034	>	assertTrue(complete1.call());
2035	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2036	>	checkIncomplete(h1);
2037	>	checkIncomplete(h2);
2038	>	assertTrue(complete2.call());
2039	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2040
2041	<	checkCompletedWithWrappedException(h, ex);
2042	<	r.assertNotInvoked();
2043	<	checkCompletedNormally(fFirst ? f : g, v1);
2044	<	checkCompletedExceptionally(!fFirst ? f : g, ex);
2041	>	checkCompletedWithWrappedException(h1, ex);
2042	>	checkCompletedWithWrappedException(h2, ex);
2043	>	checkCompletedWithWrappedException(h3, ex);
2044	>	r1.assertNotInvoked();
2045	>	r2.assertNotInvoked();
2046	>	r3.assertNotInvoked();
2047	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2048	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
2049		}}
2050
2051		/**
2052		* runAfterBoth result completes exceptionally if either source cancelled
2053		*/
2054	<	public void testRunAfterBoth_sourceCancelled() {
2054	>	public void testRunAfterBoth_sourceCancelled() throws Throwable {
2055		for (ExecutionMode m : ExecutionMode.values())
2056		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1675	–	for (boolean createIncomplete : new boolean[] { true, false })
2057		for (boolean fFirst : new boolean[] { true, false })
2058	+	for (boolean failFirst : new boolean[] { true, false })
2059		for (Integer v1 : new Integer[] { 1, null })
2060		{
2061		final CompletableFuture<Integer> f = new CompletableFuture<>();
2062		final CompletableFuture<Integer> g = new CompletableFuture<>();
2063	<	final Noop r = new Noop(m);
2064	<
2065	<
2066	<	(fFirst ? f : g).complete(v1);
2067	<	if (!createIncomplete)
2068	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
2069	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2070	<	if (createIncomplete) {
2071	<	checkIncomplete(h);
2072	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
2073	<	}
2063	>	final Noop r1 = new Noop(m);
2064	>	final Noop r2 = new Noop(m);
2065	>	final Noop r3 = new Noop(m);
2066	>
2067	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2068	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2069	>	final Callable<Boolean> complete1 = failFirst ?
2070	>	() -> fst.cancel(mayInterruptIfRunning) :
2071	>	() -> fst.complete(v1);
2072	>	final Callable<Boolean> complete2 = failFirst ?
2073	>	() -> snd.complete(v1) :
2074	>	() -> snd.cancel(mayInterruptIfRunning);
2075	>
2076	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2077	>	assertTrue(complete1.call());
2078	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2079	>	checkIncomplete(h1);
2080	>	checkIncomplete(h2);
2081	>	assertTrue(complete2.call());
2082	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2083
2084	<	checkCompletedWithWrappedCancellationException(h);
2085	<	checkCancelled(!fFirst ? f : g);
2086	<	r.assertNotInvoked();
2087	<	checkCompletedNormally(fFirst ? f : g, v1);
2084	>	checkCompletedWithWrappedCancellationException(h1);
2085	>	checkCompletedWithWrappedCancellationException(h2);
2086	>	checkCompletedWithWrappedCancellationException(h3);
2087	>	r1.assertNotInvoked();
2088	>	r2.assertNotInvoked();
2089	>	r3.assertNotInvoked();
2090	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2091	>	checkCancelled(failFirst ? fst : snd);
2092		}}
2093
2094		/**
#	Line 1709 | Line 2104 | public class CompletableFutureTest exten
2104		final CompletableFuture<Integer> g = new CompletableFuture<>();
2105		final FailingRunnable r1 = new FailingRunnable(m);
2106		final FailingRunnable r2 = new FailingRunnable(m);
2107	+	final FailingRunnable r3 = new FailingRunnable(m);
2108
2109	<	CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2110	<	if (fFirst) {
2111	<	f.complete(v1);
2112	<	g.complete(v2);
2113	<	} else {
2114	<	g.complete(v2);
2115	<	f.complete(v1);
2116	<	}
2117	<	CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2118	<
2119	<	checkCompletedWithWrappedCFException(h1);
2120	<	checkCompletedWithWrappedCFException(h2);
2109	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2110	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2111	>	final Integer w1 =  fFirst ? v1 : v2;
2112	>	final Integer w2 = !fFirst ? v1 : v2;
2113	>
2114	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2115	>	assertTrue(fst.complete(w1));
2116	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2117	>	assertTrue(snd.complete(w2));
2118	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2119	>
2120	>	checkCompletedWithWrappedException(h1, r1.ex);
2121	>	checkCompletedWithWrappedException(h2, r2.ex);
2122	>	checkCompletedWithWrappedException(h3, r3.ex);
2123	>	r1.assertInvoked();
2124	>	r2.assertInvoked();
2125	>	r3.assertInvoked();
2126		checkCompletedNormally(f, v1);
2127		checkCompletedNormally(g, v2);
2128		}}
#	Line 1844 | Line 2245 | public class CompletableFutureTest exten
2245
2246		final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2247		final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2248	<	if (fFirst) {
2249	<	f.complete(v1);
1849	<	g.completeExceptionally(ex);
1850	<	} else {
1851	<	g.completeExceptionally(ex);
1852	<	f.complete(v1);
1853	<	}
2248	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2249	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2250		final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2251		final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2252
#	Line 1956 | Line 2352 | public class CompletableFutureTest exten
2352
2353		final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2354		final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2355	<	if (fFirst) {
2356	<	f.complete(v1);
1961	<	g.cancel(mayInterruptIfRunning);
1962	<	} else {
1963	<	g.cancel(mayInterruptIfRunning);
1964	<	f.complete(v1);
1965	<	}
2355	>	assertTrue(fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2356	>	assertTrue(!fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2357		final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2358		final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2359
#	Line 2018 | Line 2409 | public class CompletableFutureTest exten
2409		f.complete(v1);
2410		final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2411		final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2412	<	checkCompletedWithWrappedCFException(h0);
2413	<	checkCompletedWithWrappedCFException(h1);
2414	<	checkCompletedWithWrappedCFException(h2);
2415	<	checkCompletedWithWrappedCFException(h3);
2412	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2413	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2414	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2415	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2416		for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2417
2418		g.complete(v2);
#	Line 2030 | Line 2421 | public class CompletableFutureTest exten
2421		final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2422		final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2423
2424	<	checkCompletedWithWrappedCFException(h4);
2424	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2425		assertTrue(Objects.equals(v1, rs[4].value) ||
2426		Objects.equals(v2, rs[4].value));
2427	<	checkCompletedWithWrappedCFException(h5);
2427	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2428		assertTrue(Objects.equals(v1, rs[5].value) ||
2429		Objects.equals(v2, rs[5].value));
2430
#	Line 2164 | Line 2555 | public class CompletableFutureTest exten
2555
2556		final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2557		final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2558	<	if (fFirst) {
2559	<	f.complete(v1);
2169	<	g.completeExceptionally(ex);
2170	<	} else {
2171	<	g.completeExceptionally(ex);
2172	<	f.complete(v1);
2173	<	}
2558	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2559	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2560		final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2561		final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2562
#	Line 2282 | Line 2668 | public class CompletableFutureTest exten
2668		f.complete(v1);
2669		final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2670		final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2671	<	checkCompletedWithWrappedCFException(h0);
2672	<	checkCompletedWithWrappedCFException(h1);
2673	<	checkCompletedWithWrappedCFException(h2);
2674	<	checkCompletedWithWrappedCFException(h3);
2671	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2672	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2673	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2674	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2675		for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2676
2677		g.complete(v2);
#	Line 2294 | Line 2680 | public class CompletableFutureTest exten
2680		final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2681		final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2682
2683	<	checkCompletedWithWrappedCFException(h4);
2683	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2684		assertTrue(Objects.equals(v1, rs[4].value) ||
2685		Objects.equals(v2, rs[4].value));
2686	<	checkCompletedWithWrappedCFException(h5);
2686	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2687		assertTrue(Objects.equals(v1, rs[5].value) ||
2688		Objects.equals(v2, rs[5].value));
2689
#	Line 2313 | Line 2699 | public class CompletableFutureTest exten
2699		for (ExecutionMode m : ExecutionMode.values())
2700		for (Integer v1 : new Integer[] { 1, null })
2701		for (Integer v2 : new Integer[] { 2, null })
2702	+	for (boolean pushNop : new boolean[] { true, false })
2703		{
2704		final CompletableFuture<Integer> f = new CompletableFuture<>();
2705		final CompletableFuture<Integer> g = new CompletableFuture<>();
#	Line 2325 | Line 2712 | public class CompletableFutureTest exten
2712		checkIncomplete(h1);
2713		rs[0].assertNotInvoked();
2714		rs[1].assertNotInvoked();
2715	+	if (pushNop) {          // ad hoc test of intra-completion interference
2716	+	m.thenRun(f, () -> {});
2717	+	m.thenRun(g, () -> {});
2718	+	}
2719		f.complete(v1);
2720		checkCompletedNormally(h0, null);
2721		checkCompletedNormally(h1, null);
#	Line 2373 | Line 2764 | public class CompletableFutureTest exten
2764		checkIncomplete(h1);
2765		rs[0].assertNotInvoked();
2766		rs[1].assertNotInvoked();
2767	<	f.completeExceptionally(ex);
2767	>	assertTrue(f.completeExceptionally(ex));
2768		checkCompletedWithWrappedException(h0, ex);
2769		checkCompletedWithWrappedException(h1, ex);
2770		final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
#	Line 2381 | Line 2772 | public class CompletableFutureTest exten
2772		checkCompletedWithWrappedException(h2, ex);
2773		checkCompletedWithWrappedException(h3, ex);
2774
2775	<	g.complete(v1);
2775	>	assertTrue(g.complete(v1));
2776
2777		// unspecified behavior - both source completions available
2778		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
#	Line 2424 | Line 2815 | public class CompletableFutureTest exten
2815
2816		final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2817		final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2818	<	if (fFirst) {
2819	<	f.complete(v1);
2429	<	g.completeExceptionally(ex);
2430	<	} else {
2431	<	g.completeExceptionally(ex);
2432	<	f.complete(v1);
2433	<	}
2818	>	assertTrue( fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2819	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2820		final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2821		final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2822
#	Line 2495 | Line 2881 | public class CompletableFutureTest exten
2881		checkCompletedWithWrappedCancellationException(h2);
2882		checkCompletedWithWrappedCancellationException(h3);
2883
2884	<	g.complete(v1);
2884	>	assertTrue(g.complete(v1));
2885
2886		// unspecified behavior - both source completions available
2887		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
#	Line 2539 | Line 2925 | public class CompletableFutureTest exten
2925
2926		final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2927		final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2928	<	f.complete(v1);
2928	>	assertTrue(f.complete(v1));
2929		final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2930		final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2931	<	checkCompletedWithWrappedCFException(h0);
2932	<	checkCompletedWithWrappedCFException(h1);
2933	<	checkCompletedWithWrappedCFException(h2);
2934	<	checkCompletedWithWrappedCFException(h3);
2931	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2932	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2933	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2934	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2935		for (int i = 0; i < 4; i++) rs[i].assertInvoked();
2936	<	g.complete(v2);
2936	>	assertTrue(g.complete(v2));
2937		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2938		final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2939	<	checkCompletedWithWrappedCFException(h4);
2940	<	checkCompletedWithWrappedCFException(h5);
2939	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2940	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2941
2942		checkCompletedNormally(f, v1);
2943		checkCompletedNormally(g, v2);
#	Line 2568 | Line 2954 | public class CompletableFutureTest exten
2954		{
2955		final CompletableFuture<Integer> f = new CompletableFuture<>();
2956		final CompletableFutureInc r = new CompletableFutureInc(m);
2957	<	if (!createIncomplete) f.complete(v1);
2957	>	if (!createIncomplete) assertTrue(f.complete(v1));
2958		final CompletableFuture<Integer> g = m.thenCompose(f, r);
2959	<	if (createIncomplete) f.complete(v1);
2959	>	if (createIncomplete) assertTrue(f.complete(v1));
2960
2961		checkCompletedNormally(g, inc(v1));
2962		checkCompletedNormally(f, v1);
#	Line 2608 | Line 2994 | public class CompletableFutureTest exten
2994		final CompletableFuture<Integer> f = new CompletableFuture<>();
2995		final FailingCompletableFutureFunction r
2996		= new FailingCompletableFutureFunction(m);
2997	<	if (!createIncomplete) f.complete(v1);
2997	>	if (!createIncomplete) assertTrue(f.complete(v1));
2998		final CompletableFuture<Integer> g = m.thenCompose(f, r);
2999	<	if (createIncomplete) f.complete(v1);
2999	>	if (createIncomplete) assertTrue(f.complete(v1));
3000
3001	<	checkCompletedWithWrappedCFException(g);
3001	>	checkCompletedWithWrappedException(g, r.ex);
3002		checkCompletedNormally(f, v1);
3003		}}
3004
#	Line 2637 | Line 3023 | public class CompletableFutureTest exten
3023		checkCancelled(f);
3024		}}
3025
3026	+	/**
3027	+	* thenCompose result completes exceptionally if the result of the action does
3028	+	*/
3029	+	public void testThenCompose_actionReturnsFailingFuture() {
3030	+	for (ExecutionMode m : ExecutionMode.values())
3031	+	for (int order = 0; order < 6; order++)
3032	+	for (Integer v1 : new Integer[] { 1, null })
3033	+	{
3034	+	final CFException ex = new CFException();
3035	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3036	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
3037	+	final CompletableFuture<Integer> h;
3038	+	// Test all permutations of orders
3039	+	switch (order) {
3040	+	case 0:
3041	+	assertTrue(f.complete(v1));
3042	+	assertTrue(g.completeExceptionally(ex));
3043	+	h = m.thenCompose(f, (x -> g));
3044	+	break;
3045	+	case 1:
3046	+	assertTrue(f.complete(v1));
3047	+	h = m.thenCompose(f, (x -> g));
3048	+	assertTrue(g.completeExceptionally(ex));
3049	+	break;
3050	+	case 2:
3051	+	assertTrue(g.completeExceptionally(ex));
3052	+	assertTrue(f.complete(v1));
3053	+	h = m.thenCompose(f, (x -> g));
3054	+	break;
3055	+	case 3:
3056	+	assertTrue(g.completeExceptionally(ex));
3057	+	h = m.thenCompose(f, (x -> g));
3058	+	assertTrue(f.complete(v1));
3059	+	break;
3060	+	case 4:
3061	+	h = m.thenCompose(f, (x -> g));
3062	+	assertTrue(f.complete(v1));
3063	+	assertTrue(g.completeExceptionally(ex));
3064	+	break;
3065	+	case 5:
3066	+	h = m.thenCompose(f, (x -> g));
3067	+	assertTrue(f.complete(v1));
3068	+	assertTrue(g.completeExceptionally(ex));
3069	+	break;
3070	+	default: throw new AssertionError();
3071	+	}
3072	+
3073	+	checkCompletedExceptionally(g, ex);
3074	+	checkCompletedWithWrappedException(h, ex);
3075	+	checkCompletedNormally(f, v1);
3076	+	}}
3077	+
3078		// other static methods
3079
3080		/**
#	Line 2653 | Line 3091 | public class CompletableFutureTest exten
3091		* when all components complete normally
3092		*/
3093		public void testAllOf_normal() throws Exception {
3094	<	for (int k = 1; k < 20; ++k) {
3094	>	for (int k = 1; k < 10; k++) {
3095		CompletableFuture<Integer>[] fs
3096		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3097	<	for (int i = 0; i < k; ++i)
3097	>	for (int i = 0; i < k; i++)
3098		fs[i] = new CompletableFuture<>();
3099		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3100	<	for (int i = 0; i < k; ++i) {
3100	>	for (int i = 0; i < k; i++) {
3101		checkIncomplete(f);
3102		checkIncomplete(CompletableFuture.allOf(fs));
3103		fs[i].complete(one);
#	Line 2669 | Line 3107 | public class CompletableFutureTest exten
3107		}
3108		}
3109
3110	<	public void testAllOf_backwards() throws Exception {
3111	<	for (int k = 1; k < 20; ++k) {
3110	>	public void testAllOf_normal_backwards() throws Exception {
3111	>	for (int k = 1; k < 10; k++) {
3112		CompletableFuture<Integer>[] fs
3113		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3114	<	for (int i = 0; i < k; ++i)
3114	>	for (int i = 0; i < k; i++)
3115		fs[i] = new CompletableFuture<>();
3116		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3117		for (int i = k - 1; i >= 0; i--) {
#	Line 2686 | Line 3124 | public class CompletableFutureTest exten
3124		}
3125		}
3126
3127	+	public void testAllOf_exceptional() throws Exception {
3128	+	for (int k = 1; k < 10; k++) {
3129	+	CompletableFuture<Integer>[] fs
3130	+	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3131	+	CFException ex = new CFException();
3132	+	for (int i = 0; i < k; i++)
3133	+	fs[i] = new CompletableFuture<>();
3134	+	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3135	+	for (int i = 0; i < k; i++) {
3136	+	checkIncomplete(f);
3137	+	checkIncomplete(CompletableFuture.allOf(fs));
3138	+	if (i != k / 2) {
3139	+	fs[i].complete(i);
3140	+	checkCompletedNormally(fs[i], i);
3141	+	} else {
3142	+	fs[i].completeExceptionally(ex);
3143	+	checkCompletedExceptionally(fs[i], ex);
3144	+	}
3145	+	}
3146	+	checkCompletedWithWrappedException(f, ex);
3147	+	checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3148	+	}
3149	+	}
3150	+
3151		/**
3152		* anyOf(no component futures) returns an incomplete future
3153		*/
3154		public void testAnyOf_empty() throws Exception {
3155	+	for (Integer v1 : new Integer[] { 1, null })
3156	+	{
3157		CompletableFuture<Object> f = CompletableFuture.anyOf();
3158		checkIncomplete(f);
3159	<	}
3159	>
3160	>	f.complete(v1);
3161	>	checkCompletedNormally(f, v1);
3162	>	}}
3163
3164		/**
3165		* anyOf returns a future completed normally with a value when
3166		* a component future does
3167		*/
3168		public void testAnyOf_normal() throws Exception {
3169	<	for (int k = 0; k < 10; ++k) {
3169	>	for (int k = 0; k < 10; k++) {
3170		CompletableFuture[] fs = new CompletableFuture[k];
3171	<	for (int i = 0; i < k; ++i)
3171	>	for (int i = 0; i < k; i++)
3172		fs[i] = new CompletableFuture<>();
3173		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3174		checkIncomplete(f);
3175	<	for (int i = 0; i < k; ++i) {
3176	<	fs[i].complete(one);
3177	<	checkCompletedNormally(f, one);
3178	<	checkCompletedNormally(CompletableFuture.anyOf(fs), one);
3175	>	for (int i = 0; i < k; i++) {
3176	>	fs[i].complete(i);
3177	>	checkCompletedNormally(f, 0);
3178	>	int x = (int) CompletableFuture.anyOf(fs).join();
3179	>	assertTrue(0 <= x && x <= i);
3180	>	}
3181	>	}
3182	>	}
3183	>	public void testAnyOf_normal_backwards() throws Exception {
3184	>	for (int k = 0; k < 10; k++) {
3185	>	CompletableFuture[] fs = new CompletableFuture[k];
3186	>	for (int i = 0; i < k; i++)
3187	>	fs[i] = new CompletableFuture<>();
3188	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3189	>	checkIncomplete(f);
3190	>	for (int i = k - 1; i >= 0; i--) {
3191	>	fs[i].complete(i);
3192	>	checkCompletedNormally(f, k - 1);
3193	>	int x = (int) CompletableFuture.anyOf(fs).join();
3194	>	assertTrue(i <= x && x <= k - 1);
3195		}
3196		}
3197		}
#	Line 2717 | Line 3200 | public class CompletableFutureTest exten
3200		* anyOf result completes exceptionally when any component does.
3201		*/
3202		public void testAnyOf_exceptional() throws Exception {
3203	<	for (int k = 0; k < 10; ++k) {
3203	>	for (int k = 0; k < 10; k++) {
3204		CompletableFuture[] fs = new CompletableFuture[k];
3205	<	for (int i = 0; i < k; ++i)
3205	>	CFException[] exs = new CFException[k];
3206	>	for (int i = 0; i < k; i++) {
3207		fs[i] = new CompletableFuture<>();
3208	+	exs[i] = new CFException();
3209	+	}
3210		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3211		checkIncomplete(f);
3212	<	for (int i = 0; i < k; ++i) {
3213	<	fs[i].completeExceptionally(new CFException());
3214	<	checkCompletedWithWrappedCFException(f);
3212	>	for (int i = 0; i < k; i++) {
3213	>	fs[i].completeExceptionally(exs[i]);
3214	>	checkCompletedWithWrappedException(f, exs[0]);
3215	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3216	>	}
3217	>	}
3218	>	}
3219	>
3220	>	public void testAnyOf_exceptional_backwards() throws Exception {
3221	>	for (int k = 0; k < 10; k++) {
3222	>	CompletableFuture[] fs = new CompletableFuture[k];
3223	>	CFException[] exs = new CFException[k];
3224	>	for (int i = 0; i < k; i++) {
3225	>	fs[i] = new CompletableFuture<>();
3226	>	exs[i] = new CFException();
3227	>	}
3228	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3229	>	checkIncomplete(f);
3230	>	for (int i = k - 1; i >= 0; i--) {
3231	>	fs[i].completeExceptionally(exs[i]);
3232	>	checkCompletedWithWrappedException(f, exs[k - 1]);
3233		checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3234		}
3235		}
#	Line 2738 | Line 3242 | public class CompletableFutureTest exten
3242		CompletableFuture<Integer> f = new CompletableFuture<>();
3243		CompletableFuture<Integer> g = new CompletableFuture<>();
3244		CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
2741	–	CompletableFuture<?> h;
3245		ThreadExecutor exec = new ThreadExecutor();
3246
3247		Runnable[] throwingActions = {
3248		() -> CompletableFuture.supplyAsync(null),
3249		() -> CompletableFuture.supplyAsync(null, exec),
3250	<	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.DEFAULT, 42), null),
3250	>	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3251
3252		() -> CompletableFuture.runAsync(null),
3253		() -> CompletableFuture.runAsync(null, exec),
#	Line 2835 | Line 3338 | public class CompletableFutureTest exten
3338		() -> CompletableFuture.anyOf(null, f),
3339
3340		() -> f.obtrudeException(null),
3341	+
3342	+	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3343	+	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3344	+	() -> CompletableFuture.delayedExecutor(1L, null),
3345	+
3346	+	() -> f.orTimeout(1L, null),
3347	+	() -> f.completeOnTimeout(42, 1L, null),
3348	+
3349	+	() -> CompletableFuture.failedFuture(null),
3350	+	() -> CompletableFuture.failedStage(null),
3351		};
3352
3353		assertThrows(NullPointerException.class, throwingActions);
#	Line 2842 | Line 3355 | public class CompletableFutureTest exten
3355		}
3356
3357		/**
3358	+	* Test submissions to an executor that rejects all tasks.
3359	+	*/
3360	+	public void testRejectingExecutor() {
3361	+	for (Integer v : new Integer[] { 1, null })
3362	+	{
3363	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3364	+
3365	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3366	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3367	+
3368	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3369	+
3370	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3371	+	srcs.add(complete);
3372	+	srcs.add(incomplete);
3373	+
3374	+	for (CompletableFuture<Integer> src : srcs) {
3375	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3376	+	fs.add(src.thenRunAsync(() -> {}, e));
3377	+	fs.add(src.thenAcceptAsync((z) -> {}, e));
3378	+	fs.add(src.thenApplyAsync((z) -> z, e));
3379	+
3380	+	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3381	+	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3382	+	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3383	+
3384	+	fs.add(src.applyToEitherAsync(src, (z) -> z, e));
3385	+	fs.add(src.acceptEitherAsync(src, (z) -> {}, e));
3386	+	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3387	+
3388	+	fs.add(src.thenComposeAsync((z) -> null, e));
3389	+	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3390	+	fs.add(src.handleAsync((z, t) -> null, e));
3391	+
3392	+	for (CompletableFuture<?> future : fs) {
3393	+	if (src.isDone())
3394	+	checkCompletedWithWrappedException(future, e.ex);
3395	+	else
3396	+	checkIncomplete(future);
3397	+	}
3398	+	futures.addAll(fs);
3399	+	}
3400	+
3401	+	{
3402	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3403	+
3404	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3405	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3406	+
3407	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3408	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3409	+
3410	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3411	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3412	+
3413	+	for (CompletableFuture<?> future : fs)
3414	+	checkIncomplete(future);
3415	+	futures.addAll(fs);
3416	+	}
3417	+
3418	+	{
3419	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3420	+
3421	+	fs.add(complete.applyToEitherAsync(incomplete, (z) -> z, e));
3422	+	fs.add(incomplete.applyToEitherAsync(complete, (z) -> z, e));
3423	+
3424	+	fs.add(complete.acceptEitherAsync(incomplete, (z) -> {}, e));
3425	+	fs.add(incomplete.acceptEitherAsync(complete, (z) -> {}, e));
3426	+
3427	+	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3428	+	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3429	+
3430	+	for (CompletableFuture<?> future : fs)
3431	+	checkCompletedWithWrappedException(future, e.ex);
3432	+	futures.addAll(fs);
3433	+	}
3434	+
3435	+	incomplete.complete(v);
3436	+
3437	+	for (CompletableFuture<?> future : futures)
3438	+	checkCompletedWithWrappedException(future, e.ex);
3439	+
3440	+	assertEquals(futures.size(), e.count.get());
3441	+	}}
3442	+
3443	+	/**
3444	+	* Test submissions to an executor that rejects all tasks, but
3445	+	* should never be invoked because the dependent future is
3446	+	* explicitly completed.
3447	+	*/
3448	+	public void testRejectingExecutorNeverInvoked() {
3449	+	for (Integer v : new Integer[] { 1, null })
3450	+	{
3451	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3452	+
3453	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3454	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3455	+
3456	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3457	+
3458	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3459	+	srcs.add(complete);
3460	+	srcs.add(incomplete);
3461	+
3462	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3463	+	fs.add(incomplete.thenRunAsync(() -> {}, e));
3464	+	fs.add(incomplete.thenAcceptAsync((z) -> {}, e));
3465	+	fs.add(incomplete.thenApplyAsync((z) -> z, e));
3466	+
3467	+	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3468	+	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3469	+	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3470	+
3471	+	fs.add(incomplete.applyToEitherAsync(incomplete, (z) -> z, e));
3472	+	fs.add(incomplete.acceptEitherAsync(incomplete, (z) -> {}, e));
3473	+	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3474	+
3475	+	fs.add(incomplete.thenComposeAsync((z) -> null, e));
3476	+	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3477	+	fs.add(incomplete.handleAsync((z, t) -> null, e));
3478	+
3479	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3480	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3481	+
3482	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3483	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3484	+
3485	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3486	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3487	+
3488	+	for (CompletableFuture<?> future : fs)
3489	+	checkIncomplete(future);
3490	+
3491	+	for (CompletableFuture<?> future : fs)
3492	+	future.complete(null);
3493	+
3494	+	incomplete.complete(v);
3495	+
3496	+	for (CompletableFuture<?> future : fs)
3497	+	checkCompletedNormally(future, null);
3498	+
3499	+	assertEquals(0, e.count.get());
3500	+	}}
3501	+
3502	+	/**
3503		* toCompletableFuture returns this CompletableFuture.
3504		*/
3505		public void testToCompletableFuture() {
#	Line 2849 | Line 3507 | public class CompletableFutureTest exten
3507		assertSame(f, f.toCompletableFuture());
3508		}
3509
3510	+	// jdk9
3511	+
3512		/**
3513	<	* whenComplete action executes on normal completion, propagating
2854	<	* source result.
3513	>	* newIncompleteFuture returns an incomplete CompletableFuture
3514		*/
3515	<	public void testWhenComplete_normalCompletion1() {
2857	<	for (ExecutionMode m : ExecutionMode.values())
2858	<	for (boolean createIncomplete : new boolean[] { true, false })
3515	>	public void testNewIncompleteFuture() {
3516		for (Integer v1 : new Integer[] { 1, null })
3517		{
3518	<	final AtomicInteger a = new AtomicInteger(0);
3519	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3520	<	if (!createIncomplete) f.complete(v1);
3521	<	final CompletableFuture<Integer> g = m.whenComplete
3522	<	(f,
2866	<	(Integer x, Throwable t) -> {
2867	<	m.checkExecutionMode();
2868	<	threadAssertSame(x, v1);
2869	<	threadAssertNull(t);
2870	<	a.getAndIncrement();
2871	<	});
2872	<	if (createIncomplete) f.complete(v1);
2873	<
2874	<	checkCompletedNormally(g, v1);
3518	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3519	>	CompletableFuture<Integer> g = f.newIncompleteFuture();
3520	>	checkIncomplete(f);
3521	>	checkIncomplete(g);
3522	>	f.complete(v1);
3523		checkCompletedNormally(f, v1);
3524	<	assertEquals(1, a.get());
3524	>	checkIncomplete(g);
3525	>	g.complete(v1);
3526	>	checkCompletedNormally(g, v1);
3527	>	assertSame(g.getClass(), CompletableFuture.class);
3528		}}
3529
3530		/**
3531	<	* whenComplete action executes on exceptional completion, propagating
2881	<	* source result.
3531	>	* completedStage returns a completed CompletionStage
3532		*/
3533	<	public void testWhenComplete_exceptionalCompletion() {
3534	<	for (ExecutionMode m : ExecutionMode.values())
3535	<	for (boolean createIncomplete : new boolean[] { true, false })
3536	<	for (Integer v1 : new Integer[] { 1, null })
3537	<	{
3538	<	final AtomicInteger a = new AtomicInteger(0);
3539	<	final CFException ex = new CFException();
3540	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3541	<	if (!createIncomplete) f.completeExceptionally(ex);
3542	<	final CompletableFuture<Integer> g = m.whenComplete
3543	<	(f,
3544	<	(Integer x, Throwable t) -> {
3545	<	m.checkExecutionMode();
3546	<	threadAssertNull(x);
3547	<	threadAssertSame(t, ex);
3548	<	a.getAndIncrement();
3549	<	});
3550	<	if (createIncomplete) f.completeExceptionally(ex);
3533	>	public void testCompletedStage() {
3534	>	AtomicInteger x = new AtomicInteger(0);
3535	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3536	>	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3537	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3538	>	assertEquals(x.get(), 1);
3539	>	assertNull(r.get());
3540	>	}
3541	>
3542	>	/**
3543	>	* defaultExecutor by default returns the commonPool if
3544	>	* it supports more than one thread.
3545	>	*/
3546	>	public void testDefaultExecutor() {
3547	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3548	>	Executor e = f.defaultExecutor();
3549	>	Executor c = ForkJoinPool.commonPool();
3550	>	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3551	>	assertSame(e, c);
3552	>	else
3553	>	assertNotSame(e, c);
3554	>	}
3555	>
3556	>	/**
3557	>	* failedFuture returns a CompletableFuture completed
3558	>	* exceptionally with the given Exception
3559	>	*/
3560	>	public void testFailedFuture() {
3561	>	CFException ex = new CFException();
3562	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3563	>	checkCompletedExceptionally(f, ex);
3564	>	}
3565	>
3566	>	/**
3567	>	* failedFuture(null) throws NPE
3568	>	*/
3569	>	public void testFailedFuture_null() {
3570	>	try {
3571	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3572	>	shouldThrow();
3573	>	} catch (NullPointerException success) {}
3574	>	}
3575	>
3576	>	/**
3577	>	* copy returns a CompletableFuture that is completed normally,
3578	>	* with the same value, when source is.
3579	>	*/
3580	>	public void testCopy() {
3581	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3582	>	CompletableFuture<Integer> g = f.copy();
3583	>	checkIncomplete(f);
3584	>	checkIncomplete(g);
3585	>	f.complete(1);
3586	>	checkCompletedNormally(f, 1);
3587	>	checkCompletedNormally(g, 1);
3588	>	}
3589	>
3590	>	/**
3591	>	* copy returns a CompletableFuture that is completed exceptionally
3592	>	* when source is.
3593	>	*/
3594	>	public void testCopy2() {
3595	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3596	>	CompletableFuture<Integer> g = f.copy();
3597	>	checkIncomplete(f);
3598	>	checkIncomplete(g);
3599	>	CFException ex = new CFException();
3600	>	f.completeExceptionally(ex);
3601		checkCompletedExceptionally(f, ex);
3602		checkCompletedWithWrappedException(g, ex);
3603	<	assertEquals(1, a.get());
3603	>	}
3604	>
3605	>	/**
3606	>	* minimalCompletionStage returns a CompletableFuture that is
3607	>	* completed normally, with the same value, when source is.
3608	>	*/
3609	>	public void testMinimalCompletionStage() {
3610	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3611	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3612	>	AtomicInteger x = new AtomicInteger(0);
3613	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3614	>	checkIncomplete(f);
3615	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3616	>	f.complete(1);
3617	>	checkCompletedNormally(f, 1);
3618	>	assertEquals(x.get(), 1);
3619	>	assertNull(r.get());
3620	>	}
3621	>
3622	>	/**
3623	>	* minimalCompletionStage returns a CompletableFuture that is
3624	>	* completed exceptionally when source is.
3625	>	*/
3626	>	public void testMinimalCompletionStage2() {
3627	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3628	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3629	>	AtomicInteger x = new AtomicInteger(0);
3630	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3631	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3632	>	checkIncomplete(f);
3633	>	CFException ex = new CFException();
3634	>	f.completeExceptionally(ex);
3635	>	checkCompletedExceptionally(f, ex);
3636	>	assertEquals(x.get(), 0);
3637	>	assertEquals(r.get().getCause(), ex);
3638	>	}
3639	>
3640	>	/**
3641	>	* failedStage returns a CompletionStage completed
3642	>	* exceptionally with the given Exception
3643	>	*/
3644	>	public void testFailedStage() {
3645	>	CFException ex = new CFException();
3646	>	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3647	>	AtomicInteger x = new AtomicInteger(0);
3648	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3649	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3650	>	assertEquals(x.get(), 0);
3651	>	assertEquals(r.get(), ex);
3652	>	}
3653	>
3654	>	/**
3655	>	* completeAsync completes with value of given supplier
3656	>	*/
3657	>	public void testCompleteAsync() {
3658	>	for (Integer v1 : new Integer[] { 1, null })
3659	>	{
3660	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3661	>	f.completeAsync(() -> v1);
3662	>	f.join();
3663	>	checkCompletedNormally(f, v1);
3664		}}
3665
3666		/**
3667	<	* whenComplete action executes on cancelled source, propagating
2908	<	* CancellationException.
3667	>	* completeAsync completes exceptionally if given supplier throws
3668		*/
3669	<	public void testWhenComplete_sourceCancelled() {
3670	<	for (ExecutionMode m : ExecutionMode.values())
3671	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3672	<	for (boolean createIncomplete : new boolean[] { true, false })
3669	>	public void testCompleteAsync2() {
3670	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3671	>	CFException ex = new CFException();
3672	>	f.completeAsync(() -> {if (true) throw ex; return 1;});
3673	>	try {
3674	>	f.join();
3675	>	shouldThrow();
3676	>	} catch (CompletionException success) {}
3677	>	checkCompletedWithWrappedException(f, ex);
3678	>	}
3679	>
3680	>	/**
3681	>	* completeAsync with given executor completes with value of given supplier
3682	>	*/
3683	>	public void testCompleteAsync3() {
3684	>	for (Integer v1 : new Integer[] { 1, null })
3685		{
3686	<	final AtomicInteger a = new AtomicInteger(0);
3687	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3688	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3689	<	final CompletableFuture<Integer> g = m.whenComplete
3690	<	(f,
3691	<	(Integer x, Throwable t) -> {
3692	<	m.checkExecutionMode();
2922	<	threadAssertNull(x);
2923	<	threadAssertTrue(t instanceof CancellationException);
2924	<	a.getAndIncrement();
2925	<	});
2926	<	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3686	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3687	>	ThreadExecutor executor = new ThreadExecutor();
3688	>	f.completeAsync(() -> v1, executor);
3689	>	assertSame(v1, f.join());
3690	>	checkCompletedNormally(f, v1);
3691	>	assertEquals(1, executor.count.get());
3692	>	}}
3693
3694	<	checkCompletedWithWrappedCancellationException(g);
3695	<	checkCancelled(f);
3696	<	assertEquals(1, a.get());
3694	>	/**
3695	>	* completeAsync with given executor completes exceptionally if
3696	>	* given supplier throws
3697	>	*/
3698	>	public void testCompleteAsync4() {
3699	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3700	>	CFException ex = new CFException();
3701	>	ThreadExecutor executor = new ThreadExecutor();
3702	>	f.completeAsync(() -> {if (true) throw ex; return 1;}, executor);
3703	>	try {
3704	>	f.join();
3705	>	shouldThrow();
3706	>	} catch (CompletionException success) {}
3707	>	checkCompletedWithWrappedException(f, ex);
3708	>	assertEquals(1, executor.count.get());
3709	>	}
3710	>
3711	>	/**
3712	>	* orTimeout completes with TimeoutException if not complete
3713	>	*/
3714	>	public void testOrTimeout_timesOut() {
3715	>	long timeoutMillis = timeoutMillis();
3716	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3717	>	long startTime = System.nanoTime();
3718	>	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3719	>	checkCompletedWithTimeoutException(f);
3720	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3721	>	}
3722	>
3723	>	/**
3724	>	* orTimeout completes normally if completed before timeout
3725	>	*/
3726	>	public void testOrTimeout_completed() {
3727	>	for (Integer v1 : new Integer[] { 1, null })
3728	>	{
3729	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3730	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3731	>	long startTime = System.nanoTime();
3732	>	f.complete(v1);
3733	>	assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3734	>	assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3735	>	g.complete(v1);
3736	>	checkCompletedNormally(f, v1);
3737	>	checkCompletedNormally(g, v1);
3738	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3739		}}
3740
3741		/**
3742	<	* If a whenComplete action throws an exception when triggered by
2935	<	* a normal completion, it completes exceptionally
3742	>	* completeOnTimeout completes with given value if not complete
3743		*/
3744	<	public void testWhenComplete_actionFailed() {
3745	<	for (boolean createIncomplete : new boolean[] { true, false })
3746	<	for (ExecutionMode m : ExecutionMode.values())
3744	>	public void testCompleteOnTimeout_timesOut() {
3745	>	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3746	>	() -> testCompleteOnTimeout_timesOut(null));
3747	>	}
3748	>
3749	>	/**
3750	>	* completeOnTimeout completes with given value if not complete
3751	>	*/
3752	>	public void testCompleteOnTimeout_timesOut(Integer v) {
3753	>	long timeoutMillis = timeoutMillis();
3754	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3755	>	long startTime = System.nanoTime();
3756	>	assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS));
3757	>	assertSame(v, f.join());
3758	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3759	>	f.complete(99);         // should have no effect
3760	>	checkCompletedNormally(f, v);
3761	>	}
3762	>
3763	>	/**
3764	>	* completeOnTimeout has no effect if completed within timeout
3765	>	*/
3766	>	public void testCompleteOnTimeout_completed() {
3767		for (Integer v1 : new Integer[] { 1, null })
3768		{
3769	<	final AtomicInteger a = new AtomicInteger(0);
3770	<	final CFException ex = new CFException();
3771	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3772	<	if (!createIncomplete) f.complete(v1);
3773	<	final CompletableFuture<Integer> g = m.whenComplete
3774	<	(f,
3775	<	(Integer x, Throwable t) -> {
2949	<	m.checkExecutionMode();
2950	<	threadAssertSame(x, v1);
2951	<	threadAssertNull(t);
2952	<	a.getAndIncrement();
2953	<	throw ex;
2954	<	});
2955	<	if (createIncomplete) f.complete(v1);
3769	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3770	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3771	>	long startTime = System.nanoTime();
3772	>	f.complete(v1);
3773	>	assertSame(f, f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3774	>	assertSame(g, g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3775	>	g.complete(v1);
3776		checkCompletedNormally(f, v1);
3777	<	checkCompletedWithWrappedException(g, ex);
3778	<	assertEquals(1, a.get());
3777	>	checkCompletedNormally(g, v1);
3778	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3779		}}
3780
3781		/**
3782	<	* If a whenComplete action throws an exception when triggered by
2963	<	* a source completion that also throws an exception, the source
2964	<	* exception takes precedence.
3782	>	* delayedExecutor returns an executor that delays submission
3783		*/
3784	<	public void testWhenComplete_actionFailedSourceFailed() {
3785	<	for (boolean createIncomplete : new boolean[] { true, false })
3784	>	public void testDelayedExecutor() {
3785	>	testInParallel(() -> testDelayedExecutor(null, null),
3786	>	() -> testDelayedExecutor(null, 1),
3787	>	() -> testDelayedExecutor(new ThreadExecutor(), 1),
3788	>	() -> testDelayedExecutor(new ThreadExecutor(), 1));
3789	>	}
3790	>
3791	>	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
3792	>	long timeoutMillis = timeoutMillis();
3793	>	// Use an "unreasonably long" long timeout to catch lingering threads
3794	>	long longTimeoutMillis = 1000 * 60 * 60 * 24;
3795	>	final Executor delayer, longDelayer;
3796	>	if (executor == null) {
3797	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
3798	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
3799	>	} else {
3800	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
3801	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
3802	>	}
3803	>	long startTime = System.nanoTime();
3804	>	CompletableFuture<Integer> f =
3805	>	CompletableFuture.supplyAsync(() -> v, delayer);
3806	>	CompletableFuture<Integer> g =
3807	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
3808	>
3809	>	assertNull(g.getNow(null));
3810	>
3811	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
3812	>	long millisElapsed = millisElapsedSince(startTime);
3813	>	assertTrue(millisElapsed >= timeoutMillis);
3814	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
3815	>
3816	>	checkCompletedNormally(f, v);
3817	>
3818	>	checkIncomplete(g);
3819	>	assertTrue(g.cancel(true));
3820	>	}
3821	>
3822	>	//--- tests of implementation details; not part of official tck ---
3823	>
3824	>	Object resultOf(CompletableFuture<?> f) {
3825	>	SecurityManager sm = System.getSecurityManager();
3826	>	if (sm != null) {
3827	>	try {
3828	>	System.setSecurityManager(null);
3829	>	} catch (SecurityException giveUp) {
3830	>	return "Reflection not available";
3831	>	}
3832	>	}
3833	>
3834	>	try {
3835	>	java.lang.reflect.Field resultField
3836	>	= CompletableFuture.class.getDeclaredField("result");
3837	>	resultField.setAccessible(true);
3838	>	return resultField.get(f);
3839	>	} catch (Throwable t) {
3840	>	throw new AssertionError(t);
3841	>	} finally {
3842	>	if (sm != null) System.setSecurityManager(sm);
3843	>	}
3844	>	}
3845	>
3846	>	public void testExceptionPropagationReusesResultObject() {
3847	>	if (!testImplementationDetails) return;
3848		for (ExecutionMode m : ExecutionMode.values())
2969	–	for (Integer v1 : new Integer[] { 1, null })
3849		{
3850	<	final AtomicInteger a = new AtomicInteger(0);
3851	<	final CFException ex1 = new CFException();
3852	<	final CFException ex2 = new CFException();
2974	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3850	>	final CFException ex = new CFException();
3851	>	final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
3852	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3853
3854	<	if (!createIncomplete) f.completeExceptionally(ex1);
3855	<	final CompletableFuture<Integer> g = m.whenComplete
3856	<	(f,
3857	<	(Integer x, Throwable t) -> {
3858	<	m.checkExecutionMode();
3859	<	threadAssertSame(t, ex1);
3860	<	threadAssertNull(x);
3861	<	a.getAndIncrement();
3862	<	throw ex2;
3863	<	});
3864	<	if (createIncomplete) f.completeExceptionally(ex1);
3854	>	final Runnable noopRunnable = new Noop(m);
3855	>	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
3856	>	final Function<Integer, Integer> incFunction = new IncFunction(m);
3857	>
3858	>	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
3859	>	= new ArrayList<>();
3860	>
3861	>	funs.add((y) -> m.thenRun(y, noopRunnable));
3862	>	funs.add((y) -> m.thenAccept(y, noopConsumer));
3863	>	funs.add((y) -> m.thenApply(y, incFunction));
3864	>
3865	>	funs.add((y) -> m.runAfterEither(y, incomplete, noopRunnable));
3866	>	funs.add((y) -> m.acceptEither(y, incomplete, noopConsumer));
3867	>	funs.add((y) -> m.applyToEither(y, incomplete, incFunction));
3868	>
3869	>	funs.add((y) -> m.runAfterBoth(y, v42, noopRunnable));
3870	>	funs.add((y) -> m.runAfterBoth(v42, y, noopRunnable));
3871	>	funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3872	>	funs.add((y) -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
3873	>	funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
3874	>	funs.add((y) -> m.thenCombine(v42, y, new SubtractFunction(m)));
3875	>
3876	>	funs.add((y) -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
3877	>
3878	>	funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
3879	>
3880	>	funs.add((y) -> CompletableFuture.allOf(y));
3881	>	funs.add((y) -> CompletableFuture.allOf(y, v42));
3882	>	funs.add((y) -> CompletableFuture.allOf(v42, y));
3883	>	funs.add((y) -> CompletableFuture.anyOf(y));
3884	>	funs.add((y) -> CompletableFuture.anyOf(y, incomplete));
3885	>	funs.add((y) -> CompletableFuture.anyOf(incomplete, y));
3886
3887	<	checkCompletedExceptionally(f, ex1);
3888	<	checkCompletedWithWrappedException(g, ex1);
3889	<	assertEquals(1, a.get());
3887	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3888	>	fun : funs) {
3889	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3890	>	f.completeExceptionally(ex);
3891	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3892	>	checkCompletedWithWrappedException(src, ex);
3893	>	CompletableFuture<?> dep = fun.apply(src);
3894	>	checkCompletedWithWrappedException(dep, ex);
3895	>	assertSame(resultOf(src), resultOf(dep));
3896	>	}
3897	>
3898	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3899	>	fun : funs) {
3900	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3901	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3902	>	CompletableFuture<?> dep = fun.apply(src);
3903	>	f.completeExceptionally(ex);
3904	>	checkCompletedWithWrappedException(src, ex);
3905	>	checkCompletedWithWrappedException(dep, ex);
3906	>	assertSame(resultOf(src), resultOf(dep));
3907	>	}
3908	>
3909	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3910	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3911	>	fun : funs) {
3912	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3913	>	f.cancel(mayInterruptIfRunning);
3914	>	checkCancelled(f);
3915	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3916	>	checkCompletedWithWrappedCancellationException(src);
3917	>	CompletableFuture<?> dep = fun.apply(src);
3918	>	checkCompletedWithWrappedCancellationException(dep);
3919	>	assertSame(resultOf(src), resultOf(dep));
3920	>	}
3921	>
3922	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3923	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3924	>	fun : funs) {
3925	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3926	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3927	>	CompletableFuture<?> dep = fun.apply(src);
3928	>	f.cancel(mayInterruptIfRunning);
3929	>	checkCancelled(f);
3930	>	checkCompletedWithWrappedCancellationException(src);
3931	>	checkCompletedWithWrappedCancellationException(dep);
3932	>	assertSame(resultOf(src), resultOf(dep));
3933	>	}
3934		}}
3935
3936	+	/**
3937	+	* Minimal completion stages throw UOE for most non-CompletionStage methods
3938	+	*/
3939	+	public void testMinimalCompletionStage_minimality() {
3940	+	if (!testImplementationDetails) return;
3941	+	Function<Method, String> toSignature =
3942	+	(method) -> method.getName() + Arrays.toString(method.getParameterTypes());
3943	+	Predicate<Method> isNotStatic =
3944	+	(method) -> (method.getModifiers() & Modifier.STATIC) == 0;
3945	+	List<Method> minimalMethods =
3946	+	Stream.of(Object.class, CompletionStage.class)
3947	+	.flatMap((klazz) -> Stream.of(klazz.getMethods()))
3948	+	.filter(isNotStatic)
3949	+	.collect(Collectors.toList());
3950	+	// Methods from CompletableFuture permitted NOT to throw UOE
3951	+	String[] signatureWhitelist = {
3952	+	"newIncompleteFuture[]",
3953	+	"defaultExecutor[]",
3954	+	"minimalCompletionStage[]",
3955	+	"copy[]",
3956	+	};
3957	+	Set<String> permittedMethodSignatures =
3958	+	Stream.concat(minimalMethods.stream().map(toSignature),
3959	+	Stream.of(signatureWhitelist))
3960	+	.collect(Collectors.toSet());
3961	+	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
3962	+	.filter(isNotStatic)
3963	+	.filter((method) -> !permittedMethodSignatures.contains(toSignature.apply(method)))
3964	+	.collect(Collectors.toList());
3965	+
3966	+	List<CompletionStage<Integer>> stages = new ArrayList<>();
3967	+	stages.add(new CompletableFuture<Integer>().minimalCompletionStage());
3968	+	stages.add(CompletableFuture.completedStage(1));
3969	+	stages.add(CompletableFuture.failedStage(new CFException()));
3970	+
3971	+	List<Method> bugs = new ArrayList<>();
3972	+	for (Method method : allMethods) {
3973	+	Class<?>[] parameterTypes = method.getParameterTypes();
3974	+	Object[] args = new Object[parameterTypes.length];
3975	+	// Manufacture boxed primitives for primitive params
3976	+	for (int i = 0; i < args.length; i++) {
3977	+	Class<?> type = parameterTypes[i];
3978	+	if (parameterTypes[i] == boolean.class)
3979	+	args[i] = false;
3980	+	else if (parameterTypes[i] == int.class)
3981	+	args[i] = 0;
3982	+	else if (parameterTypes[i] == long.class)
3983	+	args[i] = 0L;
3984	+	}
3985	+	for (CompletionStage<Integer> stage : stages) {
3986	+	try {
3987	+	method.invoke(stage, args);
3988	+	bugs.add(method);
3989	+	}
3990	+	catch (java.lang.reflect.InvocationTargetException expected) {
3991	+	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
3992	+	bugs.add(method);
3993	+	// expected.getCause().printStackTrace();
3994	+	}
3995	+	}
3996	+	catch (ReflectiveOperationException bad) { throw new Error(bad); }
3997	+	}
3998	+	}
3999	+	if (!bugs.isEmpty())
4000	+	throw new Error("Methods did not throw UOE: " + bugs);
4001	+	}
4002	+
4003	+	static class Monad {
4004	+	static class ZeroException extends RuntimeException {
4005	+	public ZeroException() { super("monadic zero"); }
4006	+	}
4007	+	// "return", "unit"
4008	+	static <T> CompletableFuture<T> unit(T value) {
4009	+	return completedFuture(value);
4010	+	}
4011	+	// monadic zero ?
4012	+	static <T> CompletableFuture<T> zero() {
4013	+	return failedFuture(new ZeroException());
4014	+	}
4015	+	// >=>
4016	+	static <T,U,V> Function<T, CompletableFuture<V>> compose
4017	+	(Function<T, CompletableFuture<U>> f,
4018	+	Function<U, CompletableFuture<V>> g) {
4019	+	return (x) -> f.apply(x).thenCompose(g);
4020	+	}
4021	+
4022	+	static void assertZero(CompletableFuture<?> f) {
4023	+	try {
4024	+	f.getNow(null);
4025	+	throw new AssertionFailedError("should throw");
4026	+	} catch (CompletionException success) {
4027	+	assertTrue(success.getCause() instanceof ZeroException);
4028	+	}
4029	+	}
4030	+
4031	+	static <T> void assertFutureEquals(CompletableFuture<T> f,
4032	+	CompletableFuture<T> g) {
4033	+	T fval = null, gval = null;
4034	+	Throwable fex = null, gex = null;
4035	+
4036	+	try { fval = f.get(); }
4037	+	catch (ExecutionException ex) { fex = ex.getCause(); }
4038	+	catch (Throwable ex) { fex = ex; }
4039	+
4040	+	try { gval = g.get(); }
4041	+	catch (ExecutionException ex) { gex = ex.getCause(); }
4042	+	catch (Throwable ex) { gex = ex; }
4043	+
4044	+	if (fex != null || gex != null)
4045	+	assertSame(fex.getClass(), gex.getClass());
4046	+	else
4047	+	assertEquals(fval, gval);
4048	+	}
4049	+
4050	+	static class PlusFuture<T> extends CompletableFuture<T> {
4051	+	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4052	+	}
4053	+
4054	+	/** Implements "monadic plus". */
4055	+	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
4056	+	CompletableFuture<? extends T> g) {
4057	+	PlusFuture<T> plus = new PlusFuture<T>();
4058	+	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
4059	+	try {
4060	+	if (ex == null) {
4061	+	if (plus.complete(result))
4062	+	if (plus.firstFailure.get() != null)
4063	+	plus.firstFailure.set(null);
4064	+	}
4065	+	else if (plus.firstFailure.compareAndSet(null, ex)) {
4066	+	if (plus.isDone())
4067	+	plus.firstFailure.set(null);
4068	+	}
4069	+	else {
4070	+	// first failure has precedence
4071	+	Throwable first = plus.firstFailure.getAndSet(null);
4072	+
4073	+	// may fail with "Self-suppression not permitted"
4074	+	try { first.addSuppressed(ex); }
4075	+	catch (Exception ignored) {}
4076	+
4077	+	plus.completeExceptionally(first);
4078	+	}
4079	+	} catch (Throwable unexpected) {
4080	+	plus.completeExceptionally(unexpected);
4081	+	}
4082	+	};
4083	+	f.whenComplete(action);
4084	+	g.whenComplete(action);
4085	+	return plus;
4086	+	}
4087	+	}
4088	+
4089	+	/**
4090	+	* CompletableFuture is an additive monad - sort of.
4091	+	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
4092	+	*/
4093	+	public void testAdditiveMonad() throws Throwable {
4094	+	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
4095	+	CompletableFuture<Long> zero = Monad.zero();
4096	+
4097	+	// Some mutually non-commutative functions
4098	+	Function<Long, CompletableFuture<Long>> triple
4099	+	= (x) -> Monad.unit(3 * x);
4100	+	Function<Long, CompletableFuture<Long>> inc
4101	+	= (x) -> Monad.unit(x + 1);
4102	+
4103	+	// unit is a right identity: m >>= unit === m
4104	+	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
4105	+	inc.apply(5L));
4106	+	// unit is a left identity: (unit x) >>= f === f x
4107	+	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
4108	+	inc.apply(5L));
4109	+
4110	+	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4111	+	Monad.assertFutureEquals(
4112	+	unit.apply(5L).thenCompose(inc).thenCompose(triple),
4113	+	unit.apply(5L).thenCompose((x) -> inc.apply(x).thenCompose(triple)));
4114	+
4115	+	// The case for CompletableFuture as an additive monad is weaker...
4116	+
4117	+	// zero is a monadic zero
4118	+	Monad.assertZero(zero);
4119	+
4120	+	// left zero: zero >>= f === zero
4121	+	Monad.assertZero(zero.thenCompose(inc));
4122	+	// right zero: f >>= (\x -> zero) === zero
4123	+	Monad.assertZero(inc.apply(5L).thenCompose((x) -> zero));
4124	+
4125	+	// f plus zero === f
4126	+	Monad.assertFutureEquals(Monad.unit(5L),
4127	+	Monad.plus(Monad.unit(5L), zero));
4128	+	// zero plus f === f
4129	+	Monad.assertFutureEquals(Monad.unit(5L),
4130	+	Monad.plus(zero, Monad.unit(5L)));
4131	+	// zero plus zero === zero
4132	+	Monad.assertZero(Monad.plus(zero, zero));
4133	+	{
4134	+	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
4135	+	Monad.unit(8L));
4136	+	// non-determinism
4137	+	assertTrue(f.get() == 5L || f.get() == 8L);
4138	+	}
4139	+
4140	+	CompletableFuture<Long> godot = new CompletableFuture<>();
4141	+	// f plus godot === f (doesn't wait for godot)
4142	+	Monad.assertFutureEquals(Monad.unit(5L),
4143	+	Monad.plus(Monad.unit(5L), godot));
4144	+	// godot plus f === f (doesn't wait for godot)
4145	+	Monad.assertFutureEquals(Monad.unit(5L),
4146	+	Monad.plus(godot, Monad.unit(5L)));
4147	+	}
4148	+
4149	+	/** Test long recursive chains of CompletableFutures with cascading completions */
4150	+	public void testRecursiveChains() throws Throwable {
4151	+	for (ExecutionMode m : ExecutionMode.values())
4152	+	for (boolean addDeadEnds : new boolean[] { true, false })
4153	+	{
4154	+	final int val = 42;
4155	+	final int n = expensiveTests ? 1_000 : 2;
4156	+	CompletableFuture<Integer> head = new CompletableFuture<>();
4157	+	CompletableFuture<Integer> tail = head;
4158	+	for (int i = 0; i < n; i++) {
4159	+	if (addDeadEnds) m.thenApply(tail, v -> v + 1);
4160	+	tail = m.thenApply(tail, v -> v + 1);
4161	+	if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1);
4162	+	tail = m.applyToEither(tail, tail, v -> v + 1);
4163	+	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1);
4164	+	tail = m.thenCombine(tail, tail, (v, w) -> v + 1);
4165	+	}
4166	+	head.complete(val);
4167	+	assertEquals(val + 3 * n, (int) tail.join());
4168	+	}}
4169	+
4170	+	/**
4171	+	* A single CompletableFuture with many dependents.
4172	+	* A demo of scalability - runtime is O(n).
4173	+	*/
4174	+	public void testManyDependents() throws Throwable {
4175	+	final int n = expensiveTests ? 1_000_000 : 10;
4176	+	final CompletableFuture<Void> head = new CompletableFuture<>();
4177	+	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4178	+	final AtomicInteger count = new AtomicInteger(0);
4179	+	for (int i = 0; i < n; i++) {
4180	+	head.thenRun(() -> count.getAndIncrement());
4181	+	head.thenAccept((x) -> count.getAndIncrement());
4182	+	head.thenApply((x) -> count.getAndIncrement());
4183	+
4184	+	head.runAfterBoth(complete, () -> count.getAndIncrement());
4185	+	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
4186	+	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
4187	+	complete.runAfterBoth(head, () -> count.getAndIncrement());
4188	+	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
4189	+	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4190	+
4191	+	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4192	+	head.acceptEither(new CompletableFuture<Void>(), (x) -> count.getAndIncrement());
4193	+	head.applyToEither(new CompletableFuture<Void>(), (x) -> count.getAndIncrement());
4194	+	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4195	+	new CompletableFuture<Void>().acceptEither(head, (x) -> count.getAndIncrement());
4196	+	new CompletableFuture<Void>().applyToEither(head, (x) -> count.getAndIncrement());
4197	+	}
4198	+	head.complete(null);
4199	+	assertEquals(5 * 3 * n, count.get());
4200	+	}
4201	+
4202	+	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4203	+	public void testCoCompletionGarbageRetention() throws Throwable {
4204	+	final int n = expensiveTests ? 1_000_000 : 10;
4205	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4206	+	CompletableFuture<Integer> f;
4207	+	for (int i = 0; i < n; i++) {
4208	+	f = new CompletableFuture<>();
4209	+	f.runAfterEither(incomplete, () -> {});
4210	+	f.complete(null);
4211	+
4212	+	f = new CompletableFuture<>();
4213	+	f.acceptEither(incomplete, (x) -> {});
4214	+	f.complete(null);
4215	+
4216	+	f = new CompletableFuture<>();
4217	+	f.applyToEither(incomplete, (x) -> x);
4218	+	f.complete(null);
4219	+
4220	+	f = new CompletableFuture<>();
4221	+	CompletableFuture.anyOf(new CompletableFuture<?>[] { f, incomplete });
4222	+	f.complete(null);
4223	+	}
4224	+
4225	+	for (int i = 0; i < n; i++) {
4226	+	f = new CompletableFuture<>();
4227	+	incomplete.runAfterEither(f, () -> {});
4228	+	f.complete(null);
4229	+
4230	+	f = new CompletableFuture<>();
4231	+	incomplete.acceptEither(f, (x) -> {});
4232	+	f.complete(null);
4233	+
4234	+	f = new CompletableFuture<>();
4235	+	incomplete.applyToEither(f, (x) -> x);
4236	+	f.complete(null);
4237	+
4238	+	f = new CompletableFuture<>();
4239	+	CompletableFuture.anyOf(new CompletableFuture<?>[] { incomplete, f });
4240	+	f.complete(null);
4241	+	}
4242	+	}
4243	+
4244	+	/**
4245	+	* Reproduction recipe for:
4246	+	* 8160402: Garbage retention with CompletableFuture.anyOf
4247	+	* 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
4248	+	*/
4249	+	public void testAnyOfGarbageRetention() throws Throwable {
4250	+	for (Integer v : new Integer[] { 1, null })
4251	+	{
4252	+	final int n = expensiveTests ? 100_000 : 10;
4253	+	CompletableFuture<Integer>[] fs
4254	+	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4255	+	for (int i = 0; i < fs.length; i++)
4256	+	fs[i] = new CompletableFuture<>();
4257	+	fs[fs.length - 1].complete(v);
4258	+	for (int i = 0; i < n; i++)
4259	+	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4260	+	}}
4261	+
4262	+	/**
4263	+	* Checks for garbage retention with allOf.
4264	+	*
4265	+	* As of 2016-07, fails with OOME:
4266	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4267	+	*/
4268	+	public void testCancelledAllOfGarbageRetention() throws Throwable {
4269	+	final int n = expensiveTests ? 100_000 : 10;
4270	+	CompletableFuture<Integer>[] fs
4271	+	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4272	+	for (int i = 0; i < fs.length; i++)
4273	+	fs[i] = new CompletableFuture<>();
4274	+	for (int i = 0; i < n; i++)
4275	+	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4276	+	}
4277	+
4278	+	/**
4279	+	* Checks for garbage retention when a dependent future is
4280	+	* cancelled and garbage-collected.
4281	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4282	+	*
4283	+	* As of 2016-07, fails with OOME:
4284	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4285	+	*/
4286	+	public void testCancelledGarbageRetention() throws Throwable {
4287	+	final int n = expensiveTests ? 100_000 : 10;
4288	+	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4289	+	for (int i = 0; i < n; i++)
4290	+	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4291	+	}
4292	+
4293	+	//     static <U> U join(CompletionStage<U> stage) {
4294	+	//         CompletableFuture<U> f = new CompletableFuture<>();
4295	+	//         stage.whenComplete((v, ex) -> {
4296	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4297	+	//         });
4298	+	//         return f.join();
4299	+	//     }
4300	+
4301	+	//     static <U> boolean isDone(CompletionStage<U> stage) {
4302	+	//         CompletableFuture<U> f = new CompletableFuture<>();
4303	+	//         stage.whenComplete((v, ex) -> {
4304	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4305	+	//         });
4306	+	//         return f.isDone();
4307	+	//     }
4308	+
4309	+	//     static <U> U join2(CompletionStage<U> stage) {
4310	+	//         return stage.toCompletableFuture().copy().join();
4311	+	//     }
4312	+
4313	+	//     static <U> boolean isDone2(CompletionStage<U> stage) {
4314	+	//         return stage.toCompletableFuture().copy().isDone();
4315	+	//     }
4316	+
4317		}

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