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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.72 by jsr166, Fri Jun 6 21:10:34 2014 UTC vs.
Revision 1.148 by jsr166, Sun Jun 26 15:46:22 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.TimeoutException;
34	+	import java.util.concurrent.TimeUnit;
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());
141	>
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());
346	>	assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
347		assertTrue(f.toString().contains("[Completed exceptionally]"));
348	+
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 512 | Line 518 | public class CompletableFutureTest exten
518		}
519		}
520
515	–
521		class CompletableFutureInc extends CheckedIntegerAction
522		implements Function<Integer, CompletableFuture<Integer>>
523		{
#	Line 521 | Line 526 | public class CompletableFutureTest exten
526		invoked();
527		value = x;
528		CompletableFuture<Integer> f = new CompletableFuture<>();
529	<	f.complete(inc(x));
529	>	assertTrue(f.complete(inc(x)));
530		return f;
531		}
532		}
#	Line 551 | Line 556 | public class CompletableFutureTest exten
556		}
557		}
558
559	+	static final boolean defaultExecutorIsCommonPool
560	+	= ForkJoinPool.getCommonPoolParallelism() > 1;
561	+
562		/**
563		* Permits the testing of parallel code for the 3 different
564		* execution modes without copy/pasting all the test methods.
565		*/
566		enum ExecutionMode {
567	<	DEFAULT {
567	>	SYNC {
568		public void checkExecutionMode() {
569		assertFalse(ThreadExecutor.startedCurrentThread());
570		assertNull(ForkJoinTask.getPool());
#	Line 632 | Line 640 | public class CompletableFutureTest exten
640
641		ASYNC {
642		public void checkExecutionMode() {
643	<	assertSame(ForkJoinPool.commonPool(),
644	<	ForkJoinTask.getPool());
643	>	assertEquals(defaultExecutorIsCommonPool,
644	>	(ForkJoinPool.commonPool() == ForkJoinTask.getPool()));
645		}
646		public CompletableFuture<Void> runAsync(Runnable a) {
647		return CompletableFuture.runAsync(a);
#	Line 829 | Line 837 | public class CompletableFutureTest exten
837		{
838		final AtomicInteger a = new AtomicInteger(0);
839		final CompletableFuture<Integer> f = new CompletableFuture<>();
840	<	if (!createIncomplete) f.complete(v1);
840	>	if (!createIncomplete) assertTrue(f.complete(v1));
841		final CompletableFuture<Integer> g = f.exceptionally
842		((Throwable t) -> {
835	–	// Should not be called
843		a.getAndIncrement();
844	<	throw new AssertionError();
844	>	threadFail("should not be called");
845	>	return null;            // unreached
846		});
847	<	if (createIncomplete) f.complete(v1);
847	>	if (createIncomplete) assertTrue(f.complete(v1));
848
849		checkCompletedNormally(g, v1);
850		checkCompletedNormally(f, v1);
851		assertEquals(0, a.get());
852		}}
853
846	–
854		/**
855		* exceptionally action completes with function value on source
856		* exception
#	Line 858 | Line 865 | public class CompletableFutureTest exten
865		if (!createIncomplete) f.completeExceptionally(ex);
866		final CompletableFuture<Integer> g = f.exceptionally
867		((Throwable t) -> {
868	<	ExecutionMode.DEFAULT.checkExecutionMode();
868	>	ExecutionMode.SYNC.checkExecutionMode();
869		threadAssertSame(t, ex);
870		a.getAndIncrement();
871		return v1;
#	Line 869 | Line 876 | public class CompletableFutureTest exten
876		assertEquals(1, a.get());
877		}}
878
879	+	/**
880	+	* If an "exceptionally action" throws an exception, it completes
881	+	* exceptionally with that exception
882	+	*/
883		public void testExceptionally_exceptionalCompletionActionFailed() {
884		for (boolean createIncomplete : new boolean[] { true, false })
874	–	for (Integer v1 : new Integer[] { 1, null })
885		{
886		final AtomicInteger a = new AtomicInteger(0);
887		final CFException ex1 = new CFException();
#	Line 880 | Line 890 | public class CompletableFutureTest exten
890		if (!createIncomplete) f.completeExceptionally(ex1);
891		final CompletableFuture<Integer> g = f.exceptionally
892		((Throwable t) -> {
893	<	ExecutionMode.DEFAULT.checkExecutionMode();
893	>	ExecutionMode.SYNC.checkExecutionMode();
894		threadAssertSame(t, ex1);
895		a.getAndIncrement();
896		throw ex2;
#	Line 888 | Line 898 | public class CompletableFutureTest exten
898		if (createIncomplete) f.completeExceptionally(ex1);
899
900		checkCompletedWithWrappedException(g, ex2);
901	+	checkCompletedExceptionally(f, ex1);
902	+	assertEquals(1, a.get());
903	+	}}
904	+
905	+	/**
906	+	* whenComplete action executes on normal completion, propagating
907	+	* source result.
908	+	*/
909	+	public void testWhenComplete_normalCompletion() {
910	+	for (ExecutionMode m : ExecutionMode.values())
911	+	for (boolean createIncomplete : new boolean[] { true, false })
912	+	for (Integer v1 : new Integer[] { 1, null })
913	+	{
914	+	final AtomicInteger a = new AtomicInteger(0);
915	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
916	+	if (!createIncomplete) assertTrue(f.complete(v1));
917	+	final CompletableFuture<Integer> g = m.whenComplete
918	+	(f,
919	+	(Integer result, Throwable t) -> {
920	+	m.checkExecutionMode();
921	+	threadAssertSame(result, v1);
922	+	threadAssertNull(t);
923	+	a.getAndIncrement();
924	+	});
925	+	if (createIncomplete) assertTrue(f.complete(v1));
926	+
927	+	checkCompletedNormally(g, v1);
928	+	checkCompletedNormally(f, v1);
929	+	assertEquals(1, a.get());
930	+	}}
931	+
932	+	/**
933	+	* whenComplete action executes on exceptional completion, propagating
934	+	* source result.
935	+	*/
936	+	public void testWhenComplete_exceptionalCompletion() {
937	+	for (ExecutionMode m : ExecutionMode.values())
938	+	for (boolean createIncomplete : new boolean[] { true, false })
939	+	{
940	+	final AtomicInteger a = new AtomicInteger(0);
941	+	final CFException ex = new CFException();
942	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
943	+	if (!createIncomplete) f.completeExceptionally(ex);
944	+	final CompletableFuture<Integer> g = m.whenComplete
945	+	(f,
946	+	(Integer result, Throwable t) -> {
947	+	m.checkExecutionMode();
948	+	threadAssertNull(result);
949	+	threadAssertSame(t, ex);
950	+	a.getAndIncrement();
951	+	});
952	+	if (createIncomplete) f.completeExceptionally(ex);
953	+
954	+	checkCompletedWithWrappedException(g, ex);
955	+	checkCompletedExceptionally(f, ex);
956	+	assertEquals(1, a.get());
957	+	}}
958	+
959	+	/**
960	+	* whenComplete action executes on cancelled source, propagating
961	+	* CancellationException.
962	+	*/
963	+	public void testWhenComplete_sourceCancelled() {
964	+	for (ExecutionMode m : ExecutionMode.values())
965	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
966	+	for (boolean createIncomplete : new boolean[] { true, false })
967	+	{
968	+	final AtomicInteger a = new AtomicInteger(0);
969	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
970	+	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
971	+	final CompletableFuture<Integer> g = m.whenComplete
972	+	(f,
973	+	(Integer result, Throwable t) -> {
974	+	m.checkExecutionMode();
975	+	threadAssertNull(result);
976	+	threadAssertTrue(t instanceof CancellationException);
977	+	a.getAndIncrement();
978	+	});
979	+	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
980	+
981	+	checkCompletedWithWrappedCancellationException(g);
982	+	checkCancelled(f);
983	+	assertEquals(1, a.get());
984	+	}}
985	+
986	+	/**
987	+	* If a whenComplete action throws an exception when triggered by
988	+	* a normal completion, it completes exceptionally
989	+	*/
990	+	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
991	+	for (boolean createIncomplete : new boolean[] { true, false })
992	+	for (ExecutionMode m : ExecutionMode.values())
993	+	for (Integer v1 : new Integer[] { 1, null })
994	+	{
995	+	final AtomicInteger a = new AtomicInteger(0);
996	+	final CFException ex = new CFException();
997	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
998	+	if (!createIncomplete) assertTrue(f.complete(v1));
999	+	final CompletableFuture<Integer> g = m.whenComplete
1000	+	(f,
1001	+	(Integer result, Throwable t) -> {
1002	+	m.checkExecutionMode();
1003	+	threadAssertSame(result, v1);
1004	+	threadAssertNull(t);
1005	+	a.getAndIncrement();
1006	+	throw ex;
1007	+	});
1008	+	if (createIncomplete) assertTrue(f.complete(v1));
1009	+
1010	+	checkCompletedWithWrappedException(g, ex);
1011	+	checkCompletedNormally(f, v1);
1012	+	assertEquals(1, a.get());
1013	+	}}
1014	+
1015	+	/**
1016	+	* If a whenComplete action throws an exception when triggered by
1017	+	* a source completion that also throws an exception, the source
1018	+	* exception takes precedence (unlike handle)
1019	+	*/
1020	+	public void testWhenComplete_sourceFailedActionFailed() {
1021	+	for (boolean createIncomplete : new boolean[] { true, false })
1022	+	for (ExecutionMode m : ExecutionMode.values())
1023	+	{
1024	+	final AtomicInteger a = new AtomicInteger(0);
1025	+	final CFException ex1 = new CFException();
1026	+	final CFException ex2 = new CFException();
1027	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
1028	+
1029	+	if (!createIncomplete) f.completeExceptionally(ex1);
1030	+	final CompletableFuture<Integer> g = m.whenComplete
1031	+	(f,
1032	+	(Integer result, Throwable t) -> {
1033	+	m.checkExecutionMode();
1034	+	threadAssertSame(t, ex1);
1035	+	threadAssertNull(result);
1036	+	a.getAndIncrement();
1037	+	throw ex2;
1038	+	});
1039	+	if (createIncomplete) f.completeExceptionally(ex1);
1040	+
1041	+	checkCompletedWithWrappedException(g, ex1);
1042	+	checkCompletedExceptionally(f, ex1);
1043	+	if (testImplementationDetails) {
1044	+	assertEquals(1, ex1.getSuppressed().length);
1045	+	assertSame(ex2, ex1.getSuppressed()[0]);
1046	+	}
1047		assertEquals(1, a.get());
1048		}}
1049
#	Line 902 | Line 1058 | public class CompletableFutureTest exten
1058		{
1059		final CompletableFuture<Integer> f = new CompletableFuture<>();
1060		final AtomicInteger a = new AtomicInteger(0);
1061	<	if (!createIncomplete) f.complete(v1);
1061	>	if (!createIncomplete) assertTrue(f.complete(v1));
1062		final CompletableFuture<Integer> g = m.handle
1063		(f,
1064	<	(Integer x, Throwable t) -> {
1064	>	(Integer result, Throwable t) -> {
1065		m.checkExecutionMode();
1066	<	threadAssertSame(x, v1);
1066	>	threadAssertSame(result, v1);
1067		threadAssertNull(t);
1068		a.getAndIncrement();
1069		return inc(v1);
1070		});
1071	<	if (createIncomplete) f.complete(v1);
1071	>	if (createIncomplete) assertTrue(f.complete(v1));
1072
1073		checkCompletedNormally(g, inc(v1));
1074		checkCompletedNormally(f, v1);
#	Line 934 | Line 1090 | public class CompletableFutureTest exten
1090		if (!createIncomplete) f.completeExceptionally(ex);
1091		final CompletableFuture<Integer> g = m.handle
1092		(f,
1093	<	(Integer x, Throwable t) -> {
1093	>	(Integer result, Throwable t) -> {
1094		m.checkExecutionMode();
1095	<	threadAssertNull(x);
1095	>	threadAssertNull(result);
1096		threadAssertSame(t, ex);
1097		a.getAndIncrement();
1098		return v1;
#	Line 963 | Line 1119 | public class CompletableFutureTest exten
1119		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1120		final CompletableFuture<Integer> g = m.handle
1121		(f,
1122	<	(Integer x, Throwable t) -> {
1122	>	(Integer result, Throwable t) -> {
1123		m.checkExecutionMode();
1124	<	threadAssertNull(x);
1124	>	threadAssertNull(result);
1125		threadAssertTrue(t instanceof CancellationException);
1126		a.getAndIncrement();
1127		return v1;
#	Line 978 | Line 1134 | public class CompletableFutureTest exten
1134		}}
1135
1136		/**
1137	<	* handle result completes exceptionally if action does
1137	>	* If a "handle action" throws an exception when triggered by
1138	>	* a normal completion, it completes exceptionally
1139		*/
1140	<	public void testHandle_sourceFailedActionFailed() {
1140	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1141		for (ExecutionMode m : ExecutionMode.values())
1142		for (boolean createIncomplete : new boolean[] { true, false })
1143	+	for (Integer v1 : new Integer[] { 1, null })
1144		{
1145		final CompletableFuture<Integer> f = new CompletableFuture<>();
1146		final AtomicInteger a = new AtomicInteger(0);
1147	<	final CFException ex1 = new CFException();
1148	<	final CFException ex2 = new CFException();
991	<	if (!createIncomplete) f.completeExceptionally(ex1);
1147	>	final CFException ex = new CFException();
1148	>	if (!createIncomplete) assertTrue(f.complete(v1));
1149		final CompletableFuture<Integer> g = m.handle
1150		(f,
1151	<	(Integer x, Throwable t) -> {
1151	>	(Integer result, Throwable t) -> {
1152		m.checkExecutionMode();
1153	<	threadAssertNull(x);
1154	<	threadAssertSame(ex1, t);
1153	>	threadAssertSame(result, v1);
1154	>	threadAssertNull(t);
1155		a.getAndIncrement();
1156	<	throw ex2;
1156	>	throw ex;
1157		});
1158	<	if (createIncomplete) f.completeExceptionally(ex1);
1158	>	if (createIncomplete) assertTrue(f.complete(v1));
1159
1160	<	checkCompletedWithWrappedException(g, ex2);
1161	<	checkCompletedExceptionally(f, ex1);
1160	>	checkCompletedWithWrappedException(g, ex);
1161	>	checkCompletedNormally(f, v1);
1162		assertEquals(1, a.get());
1163		}}
1164
1165	<	public void testHandle_sourceCompletedNormallyActionFailed() {
1166	<	for (ExecutionMode m : ExecutionMode.values())
1165	>	/**
1166	>	* If a "handle action" throws an exception when triggered by
1167	>	* a source completion that also throws an exception, the action
1168	>	* exception takes precedence (unlike whenComplete)
1169	>	*/
1170	>	public void testHandle_sourceFailedActionFailed() {
1171		for (boolean createIncomplete : new boolean[] { true, false })
1172	<	for (Integer v1 : new Integer[] { 1, null })
1172	>	for (ExecutionMode m : ExecutionMode.values())
1173		{
1013	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
1174		final AtomicInteger a = new AtomicInteger(0);
1175	<	final CFException ex = new CFException();
1176	<	if (!createIncomplete) f.complete(v1);
1175	>	final CFException ex1 = new CFException();
1176	>	final CFException ex2 = new CFException();
1177	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1178	>
1179	>	if (!createIncomplete) f.completeExceptionally(ex1);
1180		final CompletableFuture<Integer> g = m.handle
1181		(f,
1182	<	(Integer x, Throwable t) -> {
1182	>	(Integer result, Throwable t) -> {
1183		m.checkExecutionMode();
1184	<	threadAssertSame(x, v1);
1185	<	threadAssertNull(t);
1184	>	threadAssertNull(result);
1185	>	threadAssertSame(ex1, t);
1186		a.getAndIncrement();
1187	<	throw ex;
1187	>	throw ex2;
1188		});
1189	<	if (createIncomplete) f.complete(v1);
1189	>	if (createIncomplete) f.completeExceptionally(ex1);
1190
1191	<	checkCompletedWithWrappedException(g, ex);
1192	<	checkCompletedNormally(f, v1);
1191	>	checkCompletedWithWrappedException(g, ex2);
1192	>	checkCompletedExceptionally(f, ex1);
1193		assertEquals(1, a.get());
1194		}}
1195
#	Line 1104 | Line 1267 | public class CompletableFutureTest exten
1267		*/
1268		public void testThenRun_normalCompletion() {
1269		for (ExecutionMode m : ExecutionMode.values())
1107	–	for (boolean createIncomplete : new boolean[] { true, false })
1270		for (Integer v1 : new Integer[] { 1, null })
1271		{
1272		final CompletableFuture<Integer> f = new CompletableFuture<>();
1273	<	final Noop r = new Noop(m);
1274	<	if (!createIncomplete) f.complete(v1);
1113	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1114	<	if (createIncomplete) {
1115	<	checkIncomplete(g);
1116	<	f.complete(v1);
1117	<	}
1273	>	final Noop[] rs = new Noop[6];
1274	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1275
1276	<	checkCompletedNormally(g, null);
1276	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1277	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1278	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1279	>	checkIncomplete(h0);
1280	>	checkIncomplete(h1);
1281	>	checkIncomplete(h2);
1282	>	assertTrue(f.complete(v1));
1283	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1284	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1285	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1286	>
1287	>	checkCompletedNormally(h0, null);
1288	>	checkCompletedNormally(h1, null);
1289	>	checkCompletedNormally(h2, null);
1290	>	checkCompletedNormally(h3, null);
1291	>	checkCompletedNormally(h4, null);
1292	>	checkCompletedNormally(h5, null);
1293		checkCompletedNormally(f, v1);
1294	<	r.assertInvoked();
1294	>	for (Noop r : rs) r.assertInvoked();
1295		}}
1296
1297		/**
#	Line 1127 | Line 1300 | public class CompletableFutureTest exten
1300		*/
1301		public void testThenRun_exceptionalCompletion() {
1302		for (ExecutionMode m : ExecutionMode.values())
1130	–	for (boolean createIncomplete : new boolean[] { true, false })
1303		{
1304		final CFException ex = new CFException();
1305		final CompletableFuture<Integer> f = new CompletableFuture<>();
1306	<	final Noop r = new Noop(m);
1307	<	if (!createIncomplete) f.completeExceptionally(ex);
1136	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1137	<	if (createIncomplete) {
1138	<	checkIncomplete(g);
1139	<	f.completeExceptionally(ex);
1140	<	}
1306	>	final Noop[] rs = new Noop[6];
1307	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1308
1309	<	checkCompletedWithWrappedException(g, ex);
1309	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1310	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1311	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1312	>	checkIncomplete(h0);
1313	>	checkIncomplete(h1);
1314	>	checkIncomplete(h2);
1315	>	assertTrue(f.completeExceptionally(ex));
1316	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1317	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1318	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1319	>
1320	>	checkCompletedWithWrappedException(h0, ex);
1321	>	checkCompletedWithWrappedException(h1, ex);
1322	>	checkCompletedWithWrappedException(h2, ex);
1323	>	checkCompletedWithWrappedException(h3, ex);
1324	>	checkCompletedWithWrappedException(h4, ex);
1325	>	checkCompletedWithWrappedException(h5, ex);
1326		checkCompletedExceptionally(f, ex);
1327	<	r.assertNotInvoked();
1327	>	for (Noop r : rs) r.assertNotInvoked();
1328		}}
1329
1330		/**
#	Line 1149 | Line 1332 | public class CompletableFutureTest exten
1332		*/
1333		public void testThenRun_sourceCancelled() {
1334		for (ExecutionMode m : ExecutionMode.values())
1152	–	for (boolean createIncomplete : new boolean[] { true, false })
1335		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1336		{
1337		final CompletableFuture<Integer> f = new CompletableFuture<>();
1338	<	final Noop r = new Noop(m);
1339	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1158	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1159	<	if (createIncomplete) {
1160	<	checkIncomplete(g);
1161	<	assertTrue(f.cancel(mayInterruptIfRunning));
1162	<	}
1338	>	final Noop[] rs = new Noop[6];
1339	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1340
1341	<	checkCompletedWithWrappedCancellationException(g);
1341	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1342	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1343	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1344	>	checkIncomplete(h0);
1345	>	checkIncomplete(h1);
1346	>	checkIncomplete(h2);
1347	>	assertTrue(f.cancel(mayInterruptIfRunning));
1348	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1349	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1350	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1351	>
1352	>	checkCompletedWithWrappedCancellationException(h0);
1353	>	checkCompletedWithWrappedCancellationException(h1);
1354	>	checkCompletedWithWrappedCancellationException(h2);
1355	>	checkCompletedWithWrappedCancellationException(h3);
1356	>	checkCompletedWithWrappedCancellationException(h4);
1357	>	checkCompletedWithWrappedCancellationException(h5);
1358		checkCancelled(f);
1359	<	r.assertNotInvoked();
1359	>	for (Noop r : rs) r.assertNotInvoked();
1360		}}
1361
1362		/**
#	Line 1171 | Line 1364 | public class CompletableFutureTest exten
1364		*/
1365		public void testThenRun_actionFailed() {
1366		for (ExecutionMode m : ExecutionMode.values())
1174	–	for (boolean createIncomplete : new boolean[] { true, false })
1367		for (Integer v1 : new Integer[] { 1, null })
1368		{
1369		final CompletableFuture<Integer> f = new CompletableFuture<>();
1370	<	final FailingRunnable r = new FailingRunnable(m);
1371	<	if (!createIncomplete) f.complete(v1);
1180	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1181	<	if (createIncomplete) {
1182	<	checkIncomplete(g);
1183	<	f.complete(v1);
1184	<	}
1370	>	final FailingRunnable[] rs = new FailingRunnable[6];
1371	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1372
1373	<	checkCompletedWithWrappedCFException(g);
1373	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1374	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1375	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1376	>	assertTrue(f.complete(v1));
1377	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1378	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1379	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1380	>
1381	>	checkCompletedWithWrappedCFException(h0);
1382	>	checkCompletedWithWrappedCFException(h1);
1383	>	checkCompletedWithWrappedCFException(h2);
1384	>	checkCompletedWithWrappedCFException(h3);
1385	>	checkCompletedWithWrappedCFException(h4);
1386	>	checkCompletedWithWrappedCFException(h5);
1387		checkCompletedNormally(f, v1);
1388		}}
1389
#	Line 1192 | Line 1392 | public class CompletableFutureTest exten
1392		*/
1393		public void testThenApply_normalCompletion() {
1394		for (ExecutionMode m : ExecutionMode.values())
1195	–	for (boolean createIncomplete : new boolean[] { true, false })
1395		for (Integer v1 : new Integer[] { 1, null })
1396		{
1397		final CompletableFuture<Integer> f = new CompletableFuture<>();
1398	<	final IncFunction r = new IncFunction(m);
1399	<	if (!createIncomplete) f.complete(v1);
1201	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1202	<	if (createIncomplete) {
1203	<	checkIncomplete(g);
1204	<	f.complete(v1);
1205	<	}
1398	>	final IncFunction[] rs = new IncFunction[4];
1399	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1400
1401	<	checkCompletedNormally(g, inc(v1));
1401	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1402	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1403	>	checkIncomplete(h0);
1404	>	checkIncomplete(h1);
1405	>	assertTrue(f.complete(v1));
1406	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1407	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1408	>
1409	>	checkCompletedNormally(h0, inc(v1));
1410	>	checkCompletedNormally(h1, inc(v1));
1411	>	checkCompletedNormally(h2, inc(v1));
1412	>	checkCompletedNormally(h3, inc(v1));
1413		checkCompletedNormally(f, v1);
1414	<	r.assertValue(inc(v1));
1414	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1415		}}
1416
1417		/**
#	Line 1215 | Line 1420 | public class CompletableFutureTest exten
1420		*/
1421		public void testThenApply_exceptionalCompletion() {
1422		for (ExecutionMode m : ExecutionMode.values())
1218	–	for (boolean createIncomplete : new boolean[] { true, false })
1423		{
1424		final CFException ex = new CFException();
1425		final CompletableFuture<Integer> f = new CompletableFuture<>();
1426	<	final IncFunction r = new IncFunction(m);
1427	<	if (!createIncomplete) f.completeExceptionally(ex);
1224	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1225	<	if (createIncomplete) {
1226	<	checkIncomplete(g);
1227	<	f.completeExceptionally(ex);
1228	<	}
1426	>	final IncFunction[] rs = new IncFunction[4];
1427	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1428
1429	<	checkCompletedWithWrappedException(g, ex);
1429	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1430	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1431	>	assertTrue(f.completeExceptionally(ex));
1432	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1433	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1434	>
1435	>	checkCompletedWithWrappedException(h0, ex);
1436	>	checkCompletedWithWrappedException(h1, ex);
1437	>	checkCompletedWithWrappedException(h2, ex);
1438	>	checkCompletedWithWrappedException(h3, ex);
1439		checkCompletedExceptionally(f, ex);
1440	<	r.assertNotInvoked();
1440	>	for (IncFunction r : rs) r.assertNotInvoked();
1441		}}
1442
1443		/**
#	Line 1237 | Line 1445 | public class CompletableFutureTest exten
1445		*/
1446		public void testThenApply_sourceCancelled() {
1447		for (ExecutionMode m : ExecutionMode.values())
1240	–	for (boolean createIncomplete : new boolean[] { true, false })
1448		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1449		{
1450		final CompletableFuture<Integer> f = new CompletableFuture<>();
1451	<	final IncFunction r = new IncFunction(m);
1452	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1246	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1247	<	if (createIncomplete) {
1248	<	checkIncomplete(g);
1249	<	assertTrue(f.cancel(mayInterruptIfRunning));
1250	<	}
1451	>	final IncFunction[] rs = new IncFunction[4];
1452	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1453
1454	<	checkCompletedWithWrappedCancellationException(g);
1454	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1455	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1456	>	assertTrue(f.cancel(mayInterruptIfRunning));
1457	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1458	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1459	>
1460	>	checkCompletedWithWrappedCancellationException(h0);
1461	>	checkCompletedWithWrappedCancellationException(h1);
1462	>	checkCompletedWithWrappedCancellationException(h2);
1463	>	checkCompletedWithWrappedCancellationException(h3);
1464		checkCancelled(f);
1465	<	r.assertNotInvoked();
1465	>	for (IncFunction r : rs) r.assertNotInvoked();
1466		}}
1467
1468		/**
#	Line 1259 | Line 1470 | public class CompletableFutureTest exten
1470		*/
1471		public void testThenApply_actionFailed() {
1472		for (ExecutionMode m : ExecutionMode.values())
1262	–	for (boolean createIncomplete : new boolean[] { true, false })
1473		for (Integer v1 : new Integer[] { 1, null })
1474		{
1475		final CompletableFuture<Integer> f = new CompletableFuture<>();
1476	<	final FailingFunction r = new FailingFunction(m);
1477	<	if (!createIncomplete) f.complete(v1);
1268	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1269	<	if (createIncomplete) {
1270	<	checkIncomplete(g);
1271	<	f.complete(v1);
1272	<	}
1476	>	final FailingFunction[] rs = new FailingFunction[4];
1477	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1478
1479	<	checkCompletedWithWrappedCFException(g);
1479	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1480	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1481	>	assertTrue(f.complete(v1));
1482	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1483	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1484	>
1485	>	checkCompletedWithWrappedCFException(h0);
1486	>	checkCompletedWithWrappedCFException(h1);
1487	>	checkCompletedWithWrappedCFException(h2);
1488	>	checkCompletedWithWrappedCFException(h3);
1489		checkCompletedNormally(f, v1);
1490		}}
1491
#	Line 1280 | Line 1494 | public class CompletableFutureTest exten
1494		*/
1495		public void testThenAccept_normalCompletion() {
1496		for (ExecutionMode m : ExecutionMode.values())
1283	–	for (boolean createIncomplete : new boolean[] { true, false })
1497		for (Integer v1 : new Integer[] { 1, null })
1498		{
1499		final CompletableFuture<Integer> f = new CompletableFuture<>();
1500	<	final NoopConsumer r = new NoopConsumer(m);
1501	<	if (!createIncomplete) f.complete(v1);
1289	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1290	<	if (createIncomplete) {
1291	<	checkIncomplete(g);
1292	<	f.complete(v1);
1293	<	}
1500	>	final NoopConsumer[] rs = new NoopConsumer[4];
1501	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1502
1503	<	checkCompletedNormally(g, null);
1504	<	r.assertValue(v1);
1503	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1504	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1505	>	checkIncomplete(h0);
1506	>	checkIncomplete(h1);
1507	>	assertTrue(f.complete(v1));
1508	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1509	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1510	>
1511	>	checkCompletedNormally(h0, null);
1512	>	checkCompletedNormally(h1, null);
1513	>	checkCompletedNormally(h2, null);
1514	>	checkCompletedNormally(h3, null);
1515		checkCompletedNormally(f, v1);
1516	+	for (NoopConsumer r : rs) r.assertValue(v1);
1517		}}
1518
1519		/**
#	Line 1303 | Line 1522 | public class CompletableFutureTest exten
1522		*/
1523		public void testThenAccept_exceptionalCompletion() {
1524		for (ExecutionMode m : ExecutionMode.values())
1306	–	for (boolean createIncomplete : new boolean[] { true, false })
1525		{
1526		final CFException ex = new CFException();
1527		final CompletableFuture<Integer> f = new CompletableFuture<>();
1528	<	final NoopConsumer r = new NoopConsumer(m);
1529	<	if (!createIncomplete) f.completeExceptionally(ex);
1312	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1313	<	if (createIncomplete) {
1314	<	checkIncomplete(g);
1315	<	f.completeExceptionally(ex);
1316	<	}
1528	>	final NoopConsumer[] rs = new NoopConsumer[4];
1529	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1530
1531	<	checkCompletedWithWrappedException(g, ex);
1531	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1532	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1533	>	assertTrue(f.completeExceptionally(ex));
1534	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1535	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1536	>
1537	>	checkCompletedWithWrappedException(h0, ex);
1538	>	checkCompletedWithWrappedException(h1, ex);
1539	>	checkCompletedWithWrappedException(h2, ex);
1540	>	checkCompletedWithWrappedException(h3, ex);
1541		checkCompletedExceptionally(f, ex);
1542	<	r.assertNotInvoked();
1542	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1543		}}
1544
1545		/**
#	Line 1325 | Line 1547 | public class CompletableFutureTest exten
1547		*/
1548		public void testThenAccept_sourceCancelled() {
1549		for (ExecutionMode m : ExecutionMode.values())
1328	–	for (boolean createIncomplete : new boolean[] { true, false })
1550		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1551		{
1552		final CompletableFuture<Integer> f = new CompletableFuture<>();
1553	<	final NoopConsumer r = new NoopConsumer(m);
1554	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1334	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1335	<	if (createIncomplete) {
1336	<	checkIncomplete(g);
1337	<	assertTrue(f.cancel(mayInterruptIfRunning));
1338	<	}
1553	>	final NoopConsumer[] rs = new NoopConsumer[4];
1554	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1555
1556	<	checkCompletedWithWrappedCancellationException(g);
1556	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1557	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1558	>	assertTrue(f.cancel(mayInterruptIfRunning));
1559	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1560	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1561	>
1562	>	checkCompletedWithWrappedCancellationException(h0);
1563	>	checkCompletedWithWrappedCancellationException(h1);
1564	>	checkCompletedWithWrappedCancellationException(h2);
1565	>	checkCompletedWithWrappedCancellationException(h3);
1566		checkCancelled(f);
1567	<	r.assertNotInvoked();
1567	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1568		}}
1569
1570		/**
#	Line 1347 | Line 1572 | public class CompletableFutureTest exten
1572		*/
1573		public void testThenAccept_actionFailed() {
1574		for (ExecutionMode m : ExecutionMode.values())
1350	–	for (boolean createIncomplete : new boolean[] { true, false })
1575		for (Integer v1 : new Integer[] { 1, null })
1576		{
1577		final CompletableFuture<Integer> f = new CompletableFuture<>();
1578	<	final FailingConsumer r = new FailingConsumer(m);
1579	<	if (!createIncomplete) f.complete(v1);
1356	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1357	<	if (createIncomplete) {
1358	<	checkIncomplete(g);
1359	<	f.complete(v1);
1360	<	}
1578	>	final FailingConsumer[] rs = new FailingConsumer[4];
1579	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1580
1581	<	checkCompletedWithWrappedCFException(g);
1581	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1582	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1583	>	assertTrue(f.complete(v1));
1584	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1585	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1586	>
1587	>	checkCompletedWithWrappedCFException(h0);
1588	>	checkCompletedWithWrappedCFException(h1);
1589	>	checkCompletedWithWrappedCFException(h2);
1590	>	checkCompletedWithWrappedCFException(h3);
1591		checkCompletedNormally(f, v1);
1592		}}
1593
#	Line 1369 | Line 1597 | public class CompletableFutureTest exten
1597		*/
1598		public void testThenCombine_normalCompletion() {
1599		for (ExecutionMode m : ExecutionMode.values())
1372	–	for (boolean createIncomplete : new boolean[] { true, false })
1600		for (boolean fFirst : new boolean[] { true, false })
1601		for (Integer v1 : new Integer[] { 1, null })
1602		for (Integer v2 : new Integer[] { 2, null })
1603		{
1604		final CompletableFuture<Integer> f = new CompletableFuture<>();
1605		final CompletableFuture<Integer> g = new CompletableFuture<>();
1606	<	final SubtractFunction r = new SubtractFunction(m);
1606	>	final SubtractFunction[] rs = new SubtractFunction[6];
1607	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1608
1609	<	if (fFirst) f.complete(v1); else g.complete(v2);
1610	<	if (!createIncomplete)
1611	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1612	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1613	<	if (createIncomplete) {
1614	<	checkIncomplete(h);
1615	<	r.assertNotInvoked();
1616	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1617	<	}
1609	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1610	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1611	>	final Integer w1 =  fFirst ? v1 : v2;
1612	>	final Integer w2 = !fFirst ? v1 : v2;
1613	>
1614	>	final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1615	>	final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1616	>	assertTrue(fst.complete(w1));
1617	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1618	>	final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1619	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1620	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1621	>	checkCompletedNormally(h1, subtract(w1, w1));
1622	>	checkCompletedNormally(h3, subtract(w1, w1));
1623	>	rs[1].assertValue(subtract(w1, w1));
1624	>	rs[3].assertValue(subtract(w1, w1));
1625	>	assertTrue(snd.complete(w2));
1626	>	final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1627	>
1628	>	checkCompletedNormally(h0, subtract(v1, v2));
1629	>	checkCompletedNormally(h2, subtract(v1, v2));
1630	>	checkCompletedNormally(h4, subtract(v1, v2));
1631	>	rs[0].assertValue(subtract(v1, v2));
1632	>	rs[2].assertValue(subtract(v1, v2));
1633	>	rs[4].assertValue(subtract(v1, v2));
1634
1391	–	checkCompletedNormally(h, subtract(v1, v2));
1635		checkCompletedNormally(f, v1);
1636		checkCompletedNormally(g, v2);
1394	–	r.assertValue(subtract(v1, v2));
1637		}}
1638
1639		/**
1640		* thenCombine result completes exceptionally after exceptional
1641		* completion of either source
1642		*/
1643	<	public void testThenCombine_exceptionalCompletion() {
1643	>	public void testThenCombine_exceptionalCompletion() throws Throwable {
1644		for (ExecutionMode m : ExecutionMode.values())
1403	–	for (boolean createIncomplete : new boolean[] { true, false })
1645		for (boolean fFirst : new boolean[] { true, false })
1646	+	for (boolean failFirst : new boolean[] { true, false })
1647		for (Integer v1 : new Integer[] { 1, null })
1648		{
1649		final CompletableFuture<Integer> f = new CompletableFuture<>();
1650		final CompletableFuture<Integer> g = new CompletableFuture<>();
1651		final CFException ex = new CFException();
1652	<	final SubtractFunction r = new SubtractFunction(m);
1653	<
1654	<	(fFirst ? f : g).complete(v1);
1655	<	if (!createIncomplete)
1656	<	(!fFirst ? f : g).completeExceptionally(ex);
1657	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1658	<	if (createIncomplete) {
1659	<	checkIncomplete(h);
1660	<	(!fFirst ? f : g).completeExceptionally(ex);
1661	<	}
1652	>	final SubtractFunction r1 = new SubtractFunction(m);
1653	>	final SubtractFunction r2 = new SubtractFunction(m);
1654	>	final SubtractFunction r3 = new SubtractFunction(m);
1655	>
1656	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1657	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1658	>	final Callable<Boolean> complete1 = failFirst ?
1659	>	() -> fst.completeExceptionally(ex) :
1660	>	() -> fst.complete(v1);
1661	>	final Callable<Boolean> complete2 = failFirst ?
1662	>	() -> snd.complete(v1) :
1663	>	() -> snd.completeExceptionally(ex);
1664	>
1665	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1666	>	assertTrue(complete1.call());
1667	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1668	>	checkIncomplete(h1);
1669	>	checkIncomplete(h2);
1670	>	assertTrue(complete2.call());
1671	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1672
1673	<	checkCompletedWithWrappedException(h, ex);
1674	<	r.assertNotInvoked();
1675	<	checkCompletedNormally(fFirst ? f : g, v1);
1676	<	checkCompletedExceptionally(!fFirst ? f : g, ex);
1673	>	checkCompletedWithWrappedException(h1, ex);
1674	>	checkCompletedWithWrappedException(h2, ex);
1675	>	checkCompletedWithWrappedException(h3, ex);
1676	>	r1.assertNotInvoked();
1677	>	r2.assertNotInvoked();
1678	>	r3.assertNotInvoked();
1679	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1680	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1681		}}
1682
1683		/**
1684		* thenCombine result completes exceptionally if either source cancelled
1685		*/
1686	<	public void testThenCombine_sourceCancelled() {
1686	>	public void testThenCombine_sourceCancelled() throws Throwable {
1687		for (ExecutionMode m : ExecutionMode.values())
1688		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1433	–	for (boolean createIncomplete : new boolean[] { true, false })
1689		for (boolean fFirst : new boolean[] { true, false })
1690	+	for (boolean failFirst : new boolean[] { true, false })
1691		for (Integer v1 : new Integer[] { 1, null })
1692		{
1693		final CompletableFuture<Integer> f = new CompletableFuture<>();
1694		final CompletableFuture<Integer> g = new CompletableFuture<>();
1695	<	final SubtractFunction r = new SubtractFunction(m);
1695	>	final SubtractFunction r1 = new SubtractFunction(m);
1696	>	final SubtractFunction r2 = new SubtractFunction(m);
1697	>	final SubtractFunction r3 = new SubtractFunction(m);
1698
1699	<	(fFirst ? f : g).complete(v1);
1700	<	if (!createIncomplete)
1701	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1702	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1703	<	if (createIncomplete) {
1704	<	checkIncomplete(h);
1705	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1706	<	}
1699	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1700	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1701	>	final Callable<Boolean> complete1 = failFirst ?
1702	>	() -> fst.cancel(mayInterruptIfRunning) :
1703	>	() -> fst.complete(v1);
1704	>	final Callable<Boolean> complete2 = failFirst ?
1705	>	() -> snd.complete(v1) :
1706	>	() -> snd.cancel(mayInterruptIfRunning);
1707
1708	<	checkCompletedWithWrappedCancellationException(h);
1709	<	checkCancelled(!fFirst ? f : g);
1710	<	r.assertNotInvoked();
1711	<	checkCompletedNormally(fFirst ? f : g, v1);
1708	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1709	>	assertTrue(complete1.call());
1710	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1711	>	checkIncomplete(h1);
1712	>	checkIncomplete(h2);
1713	>	assertTrue(complete2.call());
1714	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1715	>
1716	>	checkCompletedWithWrappedCancellationException(h1);
1717	>	checkCompletedWithWrappedCancellationException(h2);
1718	>	checkCompletedWithWrappedCancellationException(h3);
1719	>	r1.assertNotInvoked();
1720	>	r2.assertNotInvoked();
1721	>	r3.assertNotInvoked();
1722	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1723	>	checkCancelled(failFirst ? fst : snd);
1724		}}
1725
1726		/**
#	Line 1464 | Line 1734 | public class CompletableFutureTest exten
1734		{
1735		final CompletableFuture<Integer> f = new CompletableFuture<>();
1736		final CompletableFuture<Integer> g = new CompletableFuture<>();
1737	<	final FailingBiFunction r = new FailingBiFunction(m);
1738	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1739	<
1740	<	if (fFirst) {
1741	<	f.complete(v1);
1742	<	g.complete(v2);
1743	<	} else {
1744	<	g.complete(v2);
1745	<	f.complete(v1);
1746	<	}
1737	>	final FailingBiFunction r1 = new FailingBiFunction(m);
1738	>	final FailingBiFunction r2 = new FailingBiFunction(m);
1739	>	final FailingBiFunction r3 = new FailingBiFunction(m);
1740	>
1741	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1742	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1743	>	final Integer w1 =  fFirst ? v1 : v2;
1744	>	final Integer w2 = !fFirst ? v1 : v2;
1745	>
1746	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1747	>	assertTrue(fst.complete(w1));
1748	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1749	>	assertTrue(snd.complete(w2));
1750	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1751
1752	<	checkCompletedWithWrappedCFException(h);
1752	>	checkCompletedWithWrappedCFException(h1);
1753	>	checkCompletedWithWrappedCFException(h2);
1754	>	checkCompletedWithWrappedCFException(h3);
1755	>	r1.assertInvoked();
1756	>	r2.assertInvoked();
1757	>	r3.assertInvoked();
1758		checkCompletedNormally(f, v1);
1759		checkCompletedNormally(g, v2);
1760		}}
#	Line 1486 | Line 1765 | public class CompletableFutureTest exten
1765		*/
1766		public void testThenAcceptBoth_normalCompletion() {
1767		for (ExecutionMode m : ExecutionMode.values())
1489	–	for (boolean createIncomplete : new boolean[] { true, false })
1768		for (boolean fFirst : new boolean[] { true, false })
1769		for (Integer v1 : new Integer[] { 1, null })
1770		for (Integer v2 : new Integer[] { 2, null })
1771		{
1772		final CompletableFuture<Integer> f = new CompletableFuture<>();
1773		final CompletableFuture<Integer> g = new CompletableFuture<>();
1774	<	final SubtractAction r = new SubtractAction(m);
1775	<
1776	<	if (fFirst) f.complete(v1); else g.complete(v2);
1777	<	if (!createIncomplete)
1778	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1779	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1780	<	if (createIncomplete) {
1781	<	checkIncomplete(h);
1782	<	r.assertNotInvoked();
1783	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1784	<	}
1774	>	final SubtractAction r1 = new SubtractAction(m);
1775	>	final SubtractAction r2 = new SubtractAction(m);
1776	>	final SubtractAction r3 = new SubtractAction(m);
1777	>
1778	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1779	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1780	>	final Integer w1 =  fFirst ? v1 : v2;
1781	>	final Integer w2 = !fFirst ? v1 : v2;
1782	>
1783	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1784	>	assertTrue(fst.complete(w1));
1785	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1786	>	checkIncomplete(h1);
1787	>	checkIncomplete(h2);
1788	>	r1.assertNotInvoked();
1789	>	r2.assertNotInvoked();
1790	>	assertTrue(snd.complete(w2));
1791	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1792
1793	<	checkCompletedNormally(h, null);
1794	<	r.assertValue(subtract(v1, v2));
1793	>	checkCompletedNormally(h1, null);
1794	>	checkCompletedNormally(h2, null);
1795	>	checkCompletedNormally(h3, null);
1796	>	r1.assertValue(subtract(v1, v2));
1797	>	r2.assertValue(subtract(v1, v2));
1798	>	r3.assertValue(subtract(v1, v2));
1799		checkCompletedNormally(f, v1);
1800		checkCompletedNormally(g, v2);
1801		}}
#	Line 1515 | Line 1804 | public class CompletableFutureTest exten
1804		* thenAcceptBoth result completes exceptionally after exceptional
1805		* completion of either source
1806		*/
1807	<	public void testThenAcceptBoth_exceptionalCompletion() {
1807	>	public void testThenAcceptBoth_exceptionalCompletion() throws Throwable {
1808		for (ExecutionMode m : ExecutionMode.values())
1520	–	for (boolean createIncomplete : new boolean[] { true, false })
1809		for (boolean fFirst : new boolean[] { true, false })
1810	+	for (boolean failFirst : new boolean[] { true, false })
1811		for (Integer v1 : new Integer[] { 1, null })
1812		{
1813		final CompletableFuture<Integer> f = new CompletableFuture<>();
1814		final CompletableFuture<Integer> g = new CompletableFuture<>();
1815		final CFException ex = new CFException();
1816	<	final SubtractAction r = new SubtractAction(m);
1817	<
1818	<	(fFirst ? f : g).complete(v1);
1819	<	if (!createIncomplete)
1820	<	(!fFirst ? f : g).completeExceptionally(ex);
1821	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1822	<	if (createIncomplete) {
1823	<	checkIncomplete(h);
1824	<	(!fFirst ? f : g).completeExceptionally(ex);
1825	<	}
1816	>	final SubtractAction r1 = new SubtractAction(m);
1817	>	final SubtractAction r2 = new SubtractAction(m);
1818	>	final SubtractAction r3 = new SubtractAction(m);
1819	>
1820	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1821	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1822	>	final Callable<Boolean> complete1 = failFirst ?
1823	>	() -> fst.completeExceptionally(ex) :
1824	>	() -> fst.complete(v1);
1825	>	final Callable<Boolean> complete2 = failFirst ?
1826	>	() -> snd.complete(v1) :
1827	>	() -> snd.completeExceptionally(ex);
1828	>
1829	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1830	>	assertTrue(complete1.call());
1831	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1832	>	checkIncomplete(h1);
1833	>	checkIncomplete(h2);
1834	>	assertTrue(complete2.call());
1835	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1836
1837	<	checkCompletedWithWrappedException(h, ex);
1838	<	r.assertNotInvoked();
1839	<	checkCompletedNormally(fFirst ? f : g, v1);
1840	<	checkCompletedExceptionally(!fFirst ? f : g, ex);
1837	>	checkCompletedWithWrappedException(h1, ex);
1838	>	checkCompletedWithWrappedException(h2, ex);
1839	>	checkCompletedWithWrappedException(h3, ex);
1840	>	r1.assertNotInvoked();
1841	>	r2.assertNotInvoked();
1842	>	r3.assertNotInvoked();
1843	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1844	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1845		}}
1846
1847		/**
1848		* thenAcceptBoth result completes exceptionally if either source cancelled
1849		*/
1850	<	public void testThenAcceptBoth_sourceCancelled() {
1850	>	public void testThenAcceptBoth_sourceCancelled() throws Throwable {
1851		for (ExecutionMode m : ExecutionMode.values())
1852		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1550	–	for (boolean createIncomplete : new boolean[] { true, false })
1853		for (boolean fFirst : new boolean[] { true, false })
1854	+	for (boolean failFirst : new boolean[] { true, false })
1855		for (Integer v1 : new Integer[] { 1, null })
1856		{
1857		final CompletableFuture<Integer> f = new CompletableFuture<>();
1858		final CompletableFuture<Integer> g = new CompletableFuture<>();
1859	<	final SubtractAction r = new SubtractAction(m);
1859	>	final SubtractAction r1 = new SubtractAction(m);
1860	>	final SubtractAction r2 = new SubtractAction(m);
1861	>	final SubtractAction r3 = new SubtractAction(m);
1862
1863	<	(fFirst ? f : g).complete(v1);
1864	<	if (!createIncomplete)
1865	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1866	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1867	<	if (createIncomplete) {
1868	<	checkIncomplete(h);
1869	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1870	<	}
1863	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1864	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1865	>	final Callable<Boolean> complete1 = failFirst ?
1866	>	() -> fst.cancel(mayInterruptIfRunning) :
1867	>	() -> fst.complete(v1);
1868	>	final Callable<Boolean> complete2 = failFirst ?
1869	>	() -> snd.complete(v1) :
1870	>	() -> snd.cancel(mayInterruptIfRunning);
1871
1872	<	checkCompletedWithWrappedCancellationException(h);
1873	<	checkCancelled(!fFirst ? f : g);
1874	<	r.assertNotInvoked();
1875	<	checkCompletedNormally(fFirst ? f : g, v1);
1872	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1873	>	assertTrue(complete1.call());
1874	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1875	>	checkIncomplete(h1);
1876	>	checkIncomplete(h2);
1877	>	assertTrue(complete2.call());
1878	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1879	>
1880	>	checkCompletedWithWrappedCancellationException(h1);
1881	>	checkCompletedWithWrappedCancellationException(h2);
1882	>	checkCompletedWithWrappedCancellationException(h3);
1883	>	r1.assertNotInvoked();
1884	>	r2.assertNotInvoked();
1885	>	r3.assertNotInvoked();
1886	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1887	>	checkCancelled(failFirst ? fst : snd);
1888		}}
1889
1890		/**
#	Line 1581 | Line 1898 | public class CompletableFutureTest exten
1898		{
1899		final CompletableFuture<Integer> f = new CompletableFuture<>();
1900		final CompletableFuture<Integer> g = new CompletableFuture<>();
1901	<	final FailingBiConsumer r = new FailingBiConsumer(m);
1902	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1903	<
1904	<	if (fFirst) {
1905	<	f.complete(v1);
1906	<	g.complete(v2);
1907	<	} else {
1908	<	g.complete(v2);
1909	<	f.complete(v1);
1910	<	}
1901	>	final FailingBiConsumer r1 = new FailingBiConsumer(m);
1902	>	final FailingBiConsumer r2 = new FailingBiConsumer(m);
1903	>	final FailingBiConsumer r3 = new FailingBiConsumer(m);
1904	>
1905	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1906	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1907	>	final Integer w1 =  fFirst ? v1 : v2;
1908	>	final Integer w2 = !fFirst ? v1 : v2;
1909	>
1910	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1911	>	assertTrue(fst.complete(w1));
1912	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1913	>	assertTrue(snd.complete(w2));
1914	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1915
1916	<	checkCompletedWithWrappedCFException(h);
1916	>	checkCompletedWithWrappedCFException(h1);
1917	>	checkCompletedWithWrappedCFException(h2);
1918	>	checkCompletedWithWrappedCFException(h3);
1919	>	r1.assertInvoked();
1920	>	r2.assertInvoked();
1921	>	r3.assertInvoked();
1922		checkCompletedNormally(f, v1);
1923		checkCompletedNormally(g, v2);
1924		}}
#	Line 1603 | Line 1929 | public class CompletableFutureTest exten
1929		*/
1930		public void testRunAfterBoth_normalCompletion() {
1931		for (ExecutionMode m : ExecutionMode.values())
1606	–	for (boolean createIncomplete : new boolean[] { true, false })
1932		for (boolean fFirst : new boolean[] { true, false })
1933		for (Integer v1 : new Integer[] { 1, null })
1934		for (Integer v2 : new Integer[] { 2, null })
1935		{
1936		final CompletableFuture<Integer> f = new CompletableFuture<>();
1937		final CompletableFuture<Integer> g = new CompletableFuture<>();
1938	<	final Noop r = new Noop(m);
1939	<
1940	<	if (fFirst) f.complete(v1); else g.complete(v2);
1941	<	if (!createIncomplete)
1942	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1943	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1944	<	if (createIncomplete) {
1945	<	checkIncomplete(h);
1946	<	r.assertNotInvoked();
1947	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1948	<	}
1938	>	final Noop r1 = new Noop(m);
1939	>	final Noop r2 = new Noop(m);
1940	>	final Noop r3 = new Noop(m);
1941	>
1942	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1943	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1944	>	final Integer w1 =  fFirst ? v1 : v2;
1945	>	final Integer w2 = !fFirst ? v1 : v2;
1946	>
1947	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1948	>	assertTrue(fst.complete(w1));
1949	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1950	>	checkIncomplete(h1);
1951	>	checkIncomplete(h2);
1952	>	r1.assertNotInvoked();
1953	>	r2.assertNotInvoked();
1954	>	assertTrue(snd.complete(w2));
1955	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
1956
1957	<	checkCompletedNormally(h, null);
1958	<	r.assertInvoked();
1957	>	checkCompletedNormally(h1, null);
1958	>	checkCompletedNormally(h2, null);
1959	>	checkCompletedNormally(h3, null);
1960	>	r1.assertInvoked();
1961	>	r2.assertInvoked();
1962	>	r3.assertInvoked();
1963		checkCompletedNormally(f, v1);
1964		checkCompletedNormally(g, v2);
1965		}}
#	Line 1632 | Line 1968 | public class CompletableFutureTest exten
1968		* runAfterBoth result completes exceptionally after exceptional
1969		* completion of either source
1970		*/
1971	<	public void testRunAfterBoth_exceptionalCompletion() {
1971	>	public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
1972		for (ExecutionMode m : ExecutionMode.values())
1637	–	for (boolean createIncomplete : new boolean[] { true, false })
1973		for (boolean fFirst : new boolean[] { true, false })
1974	+	for (boolean failFirst : new boolean[] { true, false })
1975		for (Integer v1 : new Integer[] { 1, null })
1976		{
1977		final CompletableFuture<Integer> f = new CompletableFuture<>();
1978		final CompletableFuture<Integer> g = new CompletableFuture<>();
1979		final CFException ex = new CFException();
1980	<	final Noop r = new Noop(m);
1981	<
1982	<	(fFirst ? f : g).complete(v1);
1983	<	if (!createIncomplete)
1984	<	(!fFirst ? f : g).completeExceptionally(ex);
1985	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1986	<	if (createIncomplete) {
1987	<	checkIncomplete(h);
1988	<	(!fFirst ? f : g).completeExceptionally(ex);
1989	<	}
1980	>	final Noop r1 = new Noop(m);
1981	>	final Noop r2 = new Noop(m);
1982	>	final Noop r3 = new Noop(m);
1983	>
1984	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1985	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1986	>	final Callable<Boolean> complete1 = failFirst ?
1987	>	() -> fst.completeExceptionally(ex) :
1988	>	() -> fst.complete(v1);
1989	>	final Callable<Boolean> complete2 = failFirst ?
1990	>	() -> snd.complete(v1) :
1991	>	() -> snd.completeExceptionally(ex);
1992	>
1993	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1994	>	assertTrue(complete1.call());
1995	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1996	>	checkIncomplete(h1);
1997	>	checkIncomplete(h2);
1998	>	assertTrue(complete2.call());
1999	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2000
2001	<	checkCompletedWithWrappedException(h, ex);
2002	<	r.assertNotInvoked();
2003	<	checkCompletedNormally(fFirst ? f : g, v1);
2004	<	checkCompletedExceptionally(!fFirst ? f : g, ex);
2001	>	checkCompletedWithWrappedException(h1, ex);
2002	>	checkCompletedWithWrappedException(h2, ex);
2003	>	checkCompletedWithWrappedException(h3, ex);
2004	>	r1.assertNotInvoked();
2005	>	r2.assertNotInvoked();
2006	>	r3.assertNotInvoked();
2007	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2008	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
2009		}}
2010
2011		/**
2012		* runAfterBoth result completes exceptionally if either source cancelled
2013		*/
2014	<	public void testRunAfterBoth_sourceCancelled() {
2014	>	public void testRunAfterBoth_sourceCancelled() throws Throwable {
2015		for (ExecutionMode m : ExecutionMode.values())
2016		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1667	–	for (boolean createIncomplete : new boolean[] { true, false })
2017		for (boolean fFirst : new boolean[] { true, false })
2018	+	for (boolean failFirst : new boolean[] { true, false })
2019		for (Integer v1 : new Integer[] { 1, null })
2020		{
2021		final CompletableFuture<Integer> f = new CompletableFuture<>();
2022		final CompletableFuture<Integer> g = new CompletableFuture<>();
2023	<	final Noop r = new Noop(m);
2023	>	final Noop r1 = new Noop(m);
2024	>	final Noop r2 = new Noop(m);
2025	>	final Noop r3 = new Noop(m);
2026
2027	+	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2028	+	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2029	+	final Callable<Boolean> complete1 = failFirst ?
2030	+	() -> fst.cancel(mayInterruptIfRunning) :
2031	+	() -> fst.complete(v1);
2032	+	final Callable<Boolean> complete2 = failFirst ?
2033	+	() -> snd.complete(v1) :
2034	+	() -> snd.cancel(mayInterruptIfRunning);
2035
2036	<	(fFirst ? f : g).complete(v1);
2037	<	if (!createIncomplete)
2038	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
2039	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2040	<	if (createIncomplete) {
2041	<	checkIncomplete(h);
2042	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1683	<	}
2036	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2037	>	assertTrue(complete1.call());
2038	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2039	>	checkIncomplete(h1);
2040	>	checkIncomplete(h2);
2041	>	assertTrue(complete2.call());
2042	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2043
2044	<	checkCompletedWithWrappedCancellationException(h);
2045	<	checkCancelled(!fFirst ? f : g);
2046	<	r.assertNotInvoked();
2047	<	checkCompletedNormally(fFirst ? f : g, v1);
2044	>	checkCompletedWithWrappedCancellationException(h1);
2045	>	checkCompletedWithWrappedCancellationException(h2);
2046	>	checkCompletedWithWrappedCancellationException(h3);
2047	>	r1.assertNotInvoked();
2048	>	r2.assertNotInvoked();
2049	>	r3.assertNotInvoked();
2050	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2051	>	checkCancelled(failFirst ? fst : snd);
2052		}}
2053
2054		/**
#	Line 1701 | Line 2064 | public class CompletableFutureTest exten
2064		final CompletableFuture<Integer> g = new CompletableFuture<>();
2065		final FailingRunnable r1 = new FailingRunnable(m);
2066		final FailingRunnable r2 = new FailingRunnable(m);
2067	+	final FailingRunnable r3 = new FailingRunnable(m);
2068
2069	<	CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2070	<	if (fFirst) {
2071	<	f.complete(v1);
2072	<	g.complete(v2);
2073	<	} else {
2074	<	g.complete(v2);
2075	<	f.complete(v1);
2076	<	}
2077	<	CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2069	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2070	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2071	>	final Integer w1 =  fFirst ? v1 : v2;
2072	>	final Integer w2 = !fFirst ? v1 : v2;
2073	>
2074	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2075	>	assertTrue(fst.complete(w1));
2076	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2077	>	assertTrue(snd.complete(w2));
2078	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2079
2080		checkCompletedWithWrappedCFException(h1);
2081		checkCompletedWithWrappedCFException(h2);
2082	+	checkCompletedWithWrappedCFException(h3);
2083	+	r1.assertInvoked();
2084	+	r2.assertInvoked();
2085	+	r3.assertInvoked();
2086		checkCompletedNormally(f, v1);
2087		checkCompletedNormally(g, v2);
2088		}}
#	Line 1836 | Line 2205 | public class CompletableFutureTest exten
2205
2206		final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2207		final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2208	<	if (fFirst) {
2209	<	f.complete(v1);
1841	<	g.completeExceptionally(ex);
1842	<	} else {
1843	<	g.completeExceptionally(ex);
1844	<	f.complete(v1);
1845	<	}
2208	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2209	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2210		final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2211		final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2212
#	Line 1948 | Line 2312 | public class CompletableFutureTest exten
2312
2313		final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2314		final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2315	<	if (fFirst) {
2316	<	f.complete(v1);
1953	<	g.cancel(mayInterruptIfRunning);
1954	<	} else {
1955	<	g.cancel(mayInterruptIfRunning);
1956	<	f.complete(v1);
1957	<	}
2315	>	assertTrue(fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2316	>	assertTrue(!fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2317		final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2318		final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2319
#	Line 2156 | Line 2515 | public class CompletableFutureTest exten
2515
2516		final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2517		final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2518	<	if (fFirst) {
2519	<	f.complete(v1);
2161	<	g.completeExceptionally(ex);
2162	<	} else {
2163	<	g.completeExceptionally(ex);
2164	<	f.complete(v1);
2165	<	}
2518	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2519	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2520		final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2521		final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2522
#	Line 2365 | Line 2719 | public class CompletableFutureTest exten
2719		checkIncomplete(h1);
2720		rs[0].assertNotInvoked();
2721		rs[1].assertNotInvoked();
2722	<	f.completeExceptionally(ex);
2722	>	assertTrue(f.completeExceptionally(ex));
2723		checkCompletedWithWrappedException(h0, ex);
2724		checkCompletedWithWrappedException(h1, ex);
2725		final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
#	Line 2373 | Line 2727 | public class CompletableFutureTest exten
2727		checkCompletedWithWrappedException(h2, ex);
2728		checkCompletedWithWrappedException(h3, ex);
2729
2730	<	g.complete(v1);
2730	>	assertTrue(g.complete(v1));
2731
2732		// unspecified behavior - both source completions available
2733		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
#	Line 2416 | Line 2770 | public class CompletableFutureTest exten
2770
2771		final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2772		final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2773	<	if (fFirst) {
2774	<	f.complete(v1);
2421	<	g.completeExceptionally(ex);
2422	<	} else {
2423	<	g.completeExceptionally(ex);
2424	<	f.complete(v1);
2425	<	}
2773	>	assertTrue( fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2774	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2775		final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2776		final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2777
#	Line 2487 | Line 2836 | public class CompletableFutureTest exten
2836		checkCompletedWithWrappedCancellationException(h2);
2837		checkCompletedWithWrappedCancellationException(h3);
2838
2839	<	g.complete(v1);
2839	>	assertTrue(g.complete(v1));
2840
2841		// unspecified behavior - both source completions available
2842		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
#	Line 2531 | Line 2880 | public class CompletableFutureTest exten
2880
2881		final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2882		final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2883	<	f.complete(v1);
2883	>	assertTrue(f.complete(v1));
2884		final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2885		final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2886		checkCompletedWithWrappedCFException(h0);
#	Line 2539 | Line 2888 | public class CompletableFutureTest exten
2888		checkCompletedWithWrappedCFException(h2);
2889		checkCompletedWithWrappedCFException(h3);
2890		for (int i = 0; i < 4; i++) rs[i].assertInvoked();
2891	<	g.complete(v2);
2891	>	assertTrue(g.complete(v2));
2892		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2893		final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2894		checkCompletedWithWrappedCFException(h4);
#	Line 2560 | Line 2909 | public class CompletableFutureTest exten
2909		{
2910		final CompletableFuture<Integer> f = new CompletableFuture<>();
2911		final CompletableFutureInc r = new CompletableFutureInc(m);
2912	<	if (!createIncomplete) f.complete(v1);
2912	>	if (!createIncomplete) assertTrue(f.complete(v1));
2913		final CompletableFuture<Integer> g = m.thenCompose(f, r);
2914	<	if (createIncomplete) f.complete(v1);
2914	>	if (createIncomplete) assertTrue(f.complete(v1));
2915
2916		checkCompletedNormally(g, inc(v1));
2917		checkCompletedNormally(f, v1);
#	Line 2600 | Line 2949 | public class CompletableFutureTest exten
2949		final CompletableFuture<Integer> f = new CompletableFuture<>();
2950		final FailingCompletableFutureFunction r
2951		= new FailingCompletableFutureFunction(m);
2952	<	if (!createIncomplete) f.complete(v1);
2952	>	if (!createIncomplete) assertTrue(f.complete(v1));
2953		final CompletableFuture<Integer> g = m.thenCompose(f, r);
2954	<	if (createIncomplete) f.complete(v1);
2954	>	if (createIncomplete) assertTrue(f.complete(v1));
2955
2956		checkCompletedWithWrappedCFException(g);
2957		checkCompletedNormally(f, v1);
#	Line 2629 | Line 2978 | public class CompletableFutureTest exten
2978		checkCancelled(f);
2979		}}
2980
2981	+	/**
2982	+	* thenCompose result completes exceptionally if the result of the action does
2983	+	*/
2984	+	public void testThenCompose_actionReturnsFailingFuture() {
2985	+	for (ExecutionMode m : ExecutionMode.values())
2986	+	for (int order = 0; order < 6; order++)
2987	+	for (Integer v1 : new Integer[] { 1, null })
2988	+	{
2989	+	final CFException ex = new CFException();
2990	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
2991	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
2992	+	final CompletableFuture<Integer> h;
2993	+	// Test all permutations of orders
2994	+	switch (order) {
2995	+	case 0:
2996	+	assertTrue(f.complete(v1));
2997	+	assertTrue(g.completeExceptionally(ex));
2998	+	h = m.thenCompose(f, (x -> g));
2999	+	break;
3000	+	case 1:
3001	+	assertTrue(f.complete(v1));
3002	+	h = m.thenCompose(f, (x -> g));
3003	+	assertTrue(g.completeExceptionally(ex));
3004	+	break;
3005	+	case 2:
3006	+	assertTrue(g.completeExceptionally(ex));
3007	+	assertTrue(f.complete(v1));
3008	+	h = m.thenCompose(f, (x -> g));
3009	+	break;
3010	+	case 3:
3011	+	assertTrue(g.completeExceptionally(ex));
3012	+	h = m.thenCompose(f, (x -> g));
3013	+	assertTrue(f.complete(v1));
3014	+	break;
3015	+	case 4:
3016	+	h = m.thenCompose(f, (x -> g));
3017	+	assertTrue(f.complete(v1));
3018	+	assertTrue(g.completeExceptionally(ex));
3019	+	break;
3020	+	case 5:
3021	+	h = m.thenCompose(f, (x -> g));
3022	+	assertTrue(f.complete(v1));
3023	+	assertTrue(g.completeExceptionally(ex));
3024	+	break;
3025	+	default: throw new AssertionError();
3026	+	}
3027	+
3028	+	checkCompletedExceptionally(g, ex);
3029	+	checkCompletedWithWrappedException(h, ex);
3030	+	checkCompletedNormally(f, v1);
3031	+	}}
3032	+
3033		// other static methods
3034
3035		/**
#	Line 2645 | Line 3046 | public class CompletableFutureTest exten
3046		* when all components complete normally
3047		*/
3048		public void testAllOf_normal() throws Exception {
3049	<	for (int k = 1; k < 20; ++k) {
3049	>	for (int k = 1; k < 10; k++) {
3050		CompletableFuture<Integer>[] fs
3051		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3052	<	for (int i = 0; i < k; ++i)
3052	>	for (int i = 0; i < k; i++)
3053		fs[i] = new CompletableFuture<>();
3054		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3055	<	for (int i = 0; i < k; ++i) {
3055	>	for (int i = 0; i < k; i++) {
3056		checkIncomplete(f);
3057		checkIncomplete(CompletableFuture.allOf(fs));
3058		fs[i].complete(one);
#	Line 2662 | Line 3063 | public class CompletableFutureTest exten
3063		}
3064
3065		public void testAllOf_backwards() throws Exception {
3066	<	for (int k = 1; k < 20; ++k) {
3066	>	for (int k = 1; k < 10; k++) {
3067		CompletableFuture<Integer>[] fs
3068		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3069	<	for (int i = 0; i < k; ++i)
3069	>	for (int i = 0; i < k; i++)
3070		fs[i] = new CompletableFuture<>();
3071		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3072		for (int i = k - 1; i >= 0; i--) {
#	Line 2678 | Line 3079 | public class CompletableFutureTest exten
3079		}
3080		}
3081
3082	+	public void testAllOf_exceptional() throws Exception {
3083	+	for (int k = 1; k < 10; k++) {
3084	+	CompletableFuture<Integer>[] fs
3085	+	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3086	+	CFException ex = new CFException();
3087	+	for (int i = 0; i < k; i++)
3088	+	fs[i] = new CompletableFuture<>();
3089	+	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3090	+	for (int i = 0; i < k; i++) {
3091	+	checkIncomplete(f);
3092	+	checkIncomplete(CompletableFuture.allOf(fs));
3093	+	if (i != k / 2) {
3094	+	fs[i].complete(i);
3095	+	checkCompletedNormally(fs[i], i);
3096	+	} else {
3097	+	fs[i].completeExceptionally(ex);
3098	+	checkCompletedExceptionally(fs[i], ex);
3099	+	}
3100	+	}
3101	+	checkCompletedWithWrappedException(f, ex);
3102	+	checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3103	+	}
3104	+	}
3105	+
3106		/**
3107		* anyOf(no component futures) returns an incomplete future
3108		*/
3109		public void testAnyOf_empty() throws Exception {
3110	+	for (Integer v1 : new Integer[] { 1, null })
3111	+	{
3112		CompletableFuture<Object> f = CompletableFuture.anyOf();
3113		checkIncomplete(f);
3114	<	}
3114	>
3115	>	f.complete(v1);
3116	>	checkCompletedNormally(f, v1);
3117	>	}}
3118
3119		/**
3120		* anyOf returns a future completed normally with a value when
3121		* a component future does
3122		*/
3123		public void testAnyOf_normal() throws Exception {
3124	<	for (int k = 0; k < 10; ++k) {
3124	>	for (int k = 0; k < 10; k++) {
3125		CompletableFuture[] fs = new CompletableFuture[k];
3126	<	for (int i = 0; i < k; ++i)
3126	>	for (int i = 0; i < k; i++)
3127		fs[i] = new CompletableFuture<>();
3128		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3129		checkIncomplete(f);
3130	<	for (int i = 0; i < k; ++i) {
3131	<	fs[i].complete(one);
3132	<	checkCompletedNormally(f, one);
3133	<	checkCompletedNormally(CompletableFuture.anyOf(fs), one);
3130	>	for (int i = 0; i < k; i++) {
3131	>	fs[i].complete(i);
3132	>	checkCompletedNormally(f, 0);
3133	>	int x = (int) CompletableFuture.anyOf(fs).join();
3134	>	assertTrue(0 <= x && x <= i);
3135	>	}
3136	>	}
3137	>	}
3138	>	public void testAnyOf_normal_backwards() throws Exception {
3139	>	for (int k = 0; k < 10; k++) {
3140	>	CompletableFuture[] fs = new CompletableFuture[k];
3141	>	for (int i = 0; i < k; i++)
3142	>	fs[i] = new CompletableFuture<>();
3143	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3144	>	checkIncomplete(f);
3145	>	for (int i = k - 1; i >= 0; i--) {
3146	>	fs[i].complete(i);
3147	>	checkCompletedNormally(f, k - 1);
3148	>	int x = (int) CompletableFuture.anyOf(fs).join();
3149	>	assertTrue(i <= x && x <= k - 1);
3150		}
3151		}
3152		}
#	Line 2709 | Line 3155 | public class CompletableFutureTest exten
3155		* anyOf result completes exceptionally when any component does.
3156		*/
3157		public void testAnyOf_exceptional() throws Exception {
3158	<	for (int k = 0; k < 10; ++k) {
3158	>	for (int k = 0; k < 10; k++) {
3159	>	CompletableFuture[] fs = new CompletableFuture[k];
3160	>	CFException[] exs = new CFException[k];
3161	>	for (int i = 0; i < k; i++) {
3162	>	fs[i] = new CompletableFuture<>();
3163	>	exs[i] = new CFException();
3164	>	}
3165	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3166	>	checkIncomplete(f);
3167	>	for (int i = 0; i < k; i++) {
3168	>	fs[i].completeExceptionally(exs[i]);
3169	>	checkCompletedWithWrappedException(f, exs[0]);
3170	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3171	>	}
3172	>	}
3173	>	}
3174	>
3175	>	public void testAnyOf_exceptional_backwards() throws Exception {
3176	>	for (int k = 0; k < 10; k++) {
3177		CompletableFuture[] fs = new CompletableFuture[k];
3178	<	for (int i = 0; i < k; ++i)
3178	>	CFException[] exs = new CFException[k];
3179	>	for (int i = 0; i < k; i++) {
3180		fs[i] = new CompletableFuture<>();
3181	+	exs[i] = new CFException();
3182	+	}
3183		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3184		checkIncomplete(f);
3185	<	for (int i = 0; i < k; ++i) {
3186	<	fs[i].completeExceptionally(new CFException());
3187	<	checkCompletedWithWrappedCFException(f);
3185	>	for (int i = k - 1; i >= 0; i--) {
3186	>	fs[i].completeExceptionally(exs[i]);
3187	>	checkCompletedWithWrappedException(f, exs[k - 1]);
3188		checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3189		}
3190		}
#	Line 2730 | Line 3197 | public class CompletableFutureTest exten
3197		CompletableFuture<Integer> f = new CompletableFuture<>();
3198		CompletableFuture<Integer> g = new CompletableFuture<>();
3199		CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
2733	–	CompletableFuture<?> h;
3200		ThreadExecutor exec = new ThreadExecutor();
3201
3202		Runnable[] throwingActions = {
3203		() -> CompletableFuture.supplyAsync(null),
3204		() -> CompletableFuture.supplyAsync(null, exec),
3205	<	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.DEFAULT, 42), null),
3205	>	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3206
3207		() -> CompletableFuture.runAsync(null),
3208		() -> CompletableFuture.runAsync(null, exec),
#	Line 2827 | Line 3293 | public class CompletableFutureTest exten
3293		() -> CompletableFuture.anyOf(null, f),
3294
3295		() -> f.obtrudeException(null),
3296	+
3297	+	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3298	+	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3299	+	() -> CompletableFuture.delayedExecutor(1L, null),
3300	+
3301	+	() -> f.orTimeout(1L, null),
3302	+	() -> f.completeOnTimeout(42, 1L, null),
3303	+
3304	+	() -> CompletableFuture.failedFuture(null),
3305	+	() -> CompletableFuture.failedStage(null),
3306		};
3307
3308		assertThrows(NullPointerException.class, throwingActions);
#	Line 2841 | Line 3317 | public class CompletableFutureTest exten
3317		assertSame(f, f.toCompletableFuture());
3318		}
3319
3320	+	// jdk9
3321	+
3322		/**
3323	<	* whenComplete action executes on normal completion, propagating
2846	<	* source result.
3323	>	* newIncompleteFuture returns an incomplete CompletableFuture
3324		*/
3325	<	public void testWhenComplete_normalCompletion1() {
2849	<	for (ExecutionMode m : ExecutionMode.values())
2850	<	for (boolean createIncomplete : new boolean[] { true, false })
3325	>	public void testNewIncompleteFuture() {
3326		for (Integer v1 : new Integer[] { 1, null })
3327		{
3328	<	final AtomicInteger a = new AtomicInteger(0);
3329	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3330	<	if (!createIncomplete) f.complete(v1);
3331	<	final CompletableFuture<Integer> g = m.whenComplete
3332	<	(f,
2858	<	(Integer x, Throwable t) -> {
2859	<	m.checkExecutionMode();
2860	<	threadAssertSame(x, v1);
2861	<	threadAssertNull(t);
2862	<	a.getAndIncrement();
2863	<	});
2864	<	if (createIncomplete) f.complete(v1);
2865	<
2866	<	checkCompletedNormally(g, v1);
3328	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3329	>	CompletableFuture<Integer> g = f.newIncompleteFuture();
3330	>	checkIncomplete(f);
3331	>	checkIncomplete(g);
3332	>	f.complete(v1);
3333		checkCompletedNormally(f, v1);
3334	<	assertEquals(1, a.get());
3334	>	checkIncomplete(g);
3335	>	g.complete(v1);
3336	>	checkCompletedNormally(g, v1);
3337	>	assertSame(g.getClass(), CompletableFuture.class);
3338		}}
3339
3340		/**
3341	<	* whenComplete action executes on exceptional completion, propagating
2873	<	* source result.
3341	>	* completedStage returns a completed CompletionStage
3342		*/
3343	<	public void testWhenComplete_exceptionalCompletion() {
3344	<	for (ExecutionMode m : ExecutionMode.values())
3345	<	for (boolean createIncomplete : new boolean[] { true, false })
3346	<	for (Integer v1 : new Integer[] { 1, null })
3347	<	{
3348	<	final AtomicInteger a = new AtomicInteger(0);
3349	<	final CFException ex = new CFException();
3350	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3351	<	if (!createIncomplete) f.completeExceptionally(ex);
3352	<	final CompletableFuture<Integer> g = m.whenComplete
3353	<	(f,
3354	<	(Integer x, Throwable t) -> {
3355	<	m.checkExecutionMode();
3356	<	threadAssertNull(x);
3357	<	threadAssertSame(t, ex);
3358	<	a.getAndIncrement();
3359	<	});
3360	<	if (createIncomplete) f.completeExceptionally(ex);
3343	>	public void testCompletedStage() {
3344	>	AtomicInteger x = new AtomicInteger(0);
3345	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3346	>	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3347	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3348	>	assertEquals(x.get(), 1);
3349	>	assertNull(r.get());
3350	>	}
3351	>
3352	>	/**
3353	>	* defaultExecutor by default returns the commonPool if
3354	>	* it supports more than one thread.
3355	>	*/
3356	>	public void testDefaultExecutor() {
3357	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3358	>	Executor e = f.defaultExecutor();
3359	>	Executor c = ForkJoinPool.commonPool();
3360	>	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3361	>	assertSame(e, c);
3362	>	else
3363	>	assertNotSame(e, c);
3364	>	}
3365	>
3366	>	/**
3367	>	* failedFuture returns a CompletableFuture completed
3368	>	* exceptionally with the given Exception
3369	>	*/
3370	>	public void testFailedFuture() {
3371	>	CFException ex = new CFException();
3372	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3373	>	checkCompletedExceptionally(f, ex);
3374	>	}
3375	>
3376	>	/**
3377	>	* failedFuture(null) throws NPE
3378	>	*/
3379	>	public void testFailedFuture_null() {
3380	>	try {
3381	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3382	>	shouldThrow();
3383	>	} catch (NullPointerException success) {}
3384	>	}
3385	>
3386	>	/**
3387	>	* copy returns a CompletableFuture that is completed normally,
3388	>	* with the same value, when source is.
3389	>	*/
3390	>	public void testCopy() {
3391	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3392	>	CompletableFuture<Integer> g = f.copy();
3393	>	checkIncomplete(f);
3394	>	checkIncomplete(g);
3395	>	f.complete(1);
3396	>	checkCompletedNormally(f, 1);
3397	>	checkCompletedNormally(g, 1);
3398	>	}
3399	>
3400	>	/**
3401	>	* copy returns a CompletableFuture that is completed exceptionally
3402	>	* when source is.
3403	>	*/
3404	>	public void testCopy2() {
3405	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3406	>	CompletableFuture<Integer> g = f.copy();
3407	>	checkIncomplete(f);
3408	>	checkIncomplete(g);
3409	>	CFException ex = new CFException();
3410	>	f.completeExceptionally(ex);
3411		checkCompletedExceptionally(f, ex);
3412		checkCompletedWithWrappedException(g, ex);
3413	<	assertEquals(1, a.get());
3413	>	}
3414	>
3415	>	/**
3416	>	* minimalCompletionStage returns a CompletableFuture that is
3417	>	* completed normally, with the same value, when source is.
3418	>	*/
3419	>	public void testMinimalCompletionStage() {
3420	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3421	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3422	>	AtomicInteger x = new AtomicInteger(0);
3423	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3424	>	checkIncomplete(f);
3425	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3426	>	f.complete(1);
3427	>	checkCompletedNormally(f, 1);
3428	>	assertEquals(x.get(), 1);
3429	>	assertNull(r.get());
3430	>	}
3431	>
3432	>	/**
3433	>	* minimalCompletionStage returns a CompletableFuture that is
3434	>	* completed exceptionally when source is.
3435	>	*/
3436	>	public void testMinimalCompletionStage2() {
3437	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3438	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3439	>	AtomicInteger x = new AtomicInteger(0);
3440	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3441	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3442	>	checkIncomplete(f);
3443	>	CFException ex = new CFException();
3444	>	f.completeExceptionally(ex);
3445	>	checkCompletedExceptionally(f, ex);
3446	>	assertEquals(x.get(), 0);
3447	>	assertEquals(r.get().getCause(), ex);
3448	>	}
3449	>
3450	>	/**
3451	>	* failedStage returns a CompletionStage completed
3452	>	* exceptionally with the given Exception
3453	>	*/
3454	>	public void testFailedStage() {
3455	>	CFException ex = new CFException();
3456	>	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3457	>	AtomicInteger x = new AtomicInteger(0);
3458	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3459	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3460	>	assertEquals(x.get(), 0);
3461	>	assertEquals(r.get(), ex);
3462	>	}
3463	>
3464	>	/**
3465	>	* completeAsync completes with value of given supplier
3466	>	*/
3467	>	public void testCompleteAsync() {
3468	>	for (Integer v1 : new Integer[] { 1, null })
3469	>	{
3470	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3471	>	f.completeAsync(() -> v1);
3472	>	f.join();
3473	>	checkCompletedNormally(f, v1);
3474		}}
3475
3476		/**
3477	<	* whenComplete action executes on cancelled source, propagating
2900	<	* CancellationException.
3477	>	* completeAsync completes exceptionally if given supplier throws
3478		*/
3479	<	public void testWhenComplete_sourceCancelled() {
3480	<	for (ExecutionMode m : ExecutionMode.values())
3481	<	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3482	<	for (boolean createIncomplete : new boolean[] { true, false })
3479	>	public void testCompleteAsync2() {
3480	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3481	>	CFException ex = new CFException();
3482	>	f.completeAsync(() -> {if (true) throw ex; return 1;});
3483	>	try {
3484	>	f.join();
3485	>	shouldThrow();
3486	>	} catch (CompletionException success) {}
3487	>	checkCompletedWithWrappedException(f, ex);
3488	>	}
3489	>
3490	>	/**
3491	>	* completeAsync with given executor completes with value of given supplier
3492	>	*/
3493	>	public void testCompleteAsync3() {
3494	>	for (Integer v1 : new Integer[] { 1, null })
3495		{
3496	<	final AtomicInteger a = new AtomicInteger(0);
3497	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3498	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3499	<	final CompletableFuture<Integer> g = m.whenComplete
3500	<	(f,
3501	<	(Integer x, Throwable t) -> {
3502	<	m.checkExecutionMode();
2914	<	threadAssertNull(x);
2915	<	threadAssertTrue(t instanceof CancellationException);
2916	<	a.getAndIncrement();
2917	<	});
2918	<	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3496	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3497	>	ThreadExecutor executor = new ThreadExecutor();
3498	>	f.completeAsync(() -> v1, executor);
3499	>	assertSame(v1, f.join());
3500	>	checkCompletedNormally(f, v1);
3501	>	assertEquals(1, executor.count.get());
3502	>	}}
3503
3504	<	checkCompletedWithWrappedCancellationException(g);
3505	<	checkCancelled(f);
3506	<	assertEquals(1, a.get());
3504	>	/**
3505	>	* completeAsync with given executor completes exceptionally if
3506	>	* given supplier throws
3507	>	*/
3508	>	public void testCompleteAsync4() {
3509	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3510	>	CFException ex = new CFException();
3511	>	ThreadExecutor executor = new ThreadExecutor();
3512	>	f.completeAsync(() -> {if (true) throw ex; return 1;}, executor);
3513	>	try {
3514	>	f.join();
3515	>	shouldThrow();
3516	>	} catch (CompletionException success) {}
3517	>	checkCompletedWithWrappedException(f, ex);
3518	>	assertEquals(1, executor.count.get());
3519	>	}
3520	>
3521	>	/**
3522	>	* orTimeout completes with TimeoutException if not complete
3523	>	*/
3524	>	public void testOrTimeout_timesOut() {
3525	>	long timeoutMillis = timeoutMillis();
3526	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3527	>	long startTime = System.nanoTime();
3528	>	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3529	>	checkCompletedWithTimeoutException(f);
3530	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3531	>	}
3532	>
3533	>	/**
3534	>	* orTimeout completes normally if completed before timeout
3535	>	*/
3536	>	public void testOrTimeout_completed() {
3537	>	for (Integer v1 : new Integer[] { 1, null })
3538	>	{
3539	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3540	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3541	>	long startTime = System.nanoTime();
3542	>	f.complete(v1);
3543	>	assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3544	>	assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3545	>	g.complete(v1);
3546	>	checkCompletedNormally(f, v1);
3547	>	checkCompletedNormally(g, v1);
3548	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3549		}}
3550
3551		/**
3552	<	* If a whenComplete action throws an exception when triggered by
2927	<	* a normal completion, it completes exceptionally
3552	>	* completeOnTimeout completes with given value if not complete
3553		*/
3554	<	public void testWhenComplete_actionFailed() {
3555	<	for (boolean createIncomplete : new boolean[] { true, false })
3556	<	for (ExecutionMode m : ExecutionMode.values())
3554	>	public void testCompleteOnTimeout_timesOut() {
3555	>	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3556	>	() -> testCompleteOnTimeout_timesOut(null));
3557	>	}
3558	>
3559	>	/**
3560	>	* completeOnTimeout completes with given value if not complete
3561	>	*/
3562	>	public void testCompleteOnTimeout_timesOut(Integer v) {
3563	>	long timeoutMillis = timeoutMillis();
3564	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3565	>	long startTime = System.nanoTime();
3566	>	assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS));
3567	>	assertSame(v, f.join());
3568	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3569	>	f.complete(99);         // should have no effect
3570	>	checkCompletedNormally(f, v);
3571	>	}
3572	>
3573	>	/**
3574	>	* completeOnTimeout has no effect if completed within timeout
3575	>	*/
3576	>	public void testCompleteOnTimeout_completed() {
3577		for (Integer v1 : new Integer[] { 1, null })
3578		{
3579	<	final AtomicInteger a = new AtomicInteger(0);
3580	<	final CFException ex = new CFException();
3581	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3582	<	if (!createIncomplete) f.complete(v1);
3583	<	final CompletableFuture<Integer> g = m.whenComplete
3584	<	(f,
3585	<	(Integer x, Throwable t) -> {
2941	<	m.checkExecutionMode();
2942	<	threadAssertSame(x, v1);
2943	<	threadAssertNull(t);
2944	<	a.getAndIncrement();
2945	<	throw ex;
2946	<	});
2947	<	if (createIncomplete) f.complete(v1);
3579	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3580	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3581	>	long startTime = System.nanoTime();
3582	>	f.complete(v1);
3583	>	assertSame(f, f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3584	>	assertSame(g, g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3585	>	g.complete(v1);
3586		checkCompletedNormally(f, v1);
3587	<	checkCompletedWithWrappedException(g, ex);
3588	<	assertEquals(1, a.get());
3587	>	checkCompletedNormally(g, v1);
3588	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3589		}}
3590
3591		/**
3592	<	* If a whenComplete action throws an exception when triggered by
2955	<	* a source completion that also throws an exception, the source
2956	<	* exception takes precedence.
3592	>	* delayedExecutor returns an executor that delays submission
3593		*/
3594	<	public void testWhenComplete_actionFailedSourceFailed() {
3595	<	for (boolean createIncomplete : new boolean[] { true, false })
3594	>	public void testDelayedExecutor() {
3595	>	testInParallel(() -> testDelayedExecutor(null, null),
3596	>	() -> testDelayedExecutor(null, 1),
3597	>	() -> testDelayedExecutor(new ThreadExecutor(), 1),
3598	>	() -> testDelayedExecutor(new ThreadExecutor(), 1));
3599	>	}
3600	>
3601	>	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
3602	>	long timeoutMillis = timeoutMillis();
3603	>	// Use an "unreasonably long" long timeout to catch lingering threads
3604	>	long longTimeoutMillis = 1000 * 60 * 60 * 24;
3605	>	final Executor delayer, longDelayer;
3606	>	if (executor == null) {
3607	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
3608	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
3609	>	} else {
3610	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
3611	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
3612	>	}
3613	>	long startTime = System.nanoTime();
3614	>	CompletableFuture<Integer> f =
3615	>	CompletableFuture.supplyAsync(() -> v, delayer);
3616	>	CompletableFuture<Integer> g =
3617	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
3618	>
3619	>	assertNull(g.getNow(null));
3620	>
3621	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
3622	>	long millisElapsed = millisElapsedSince(startTime);
3623	>	assertTrue(millisElapsed >= timeoutMillis);
3624	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
3625	>
3626	>	checkCompletedNormally(f, v);
3627	>
3628	>	checkIncomplete(g);
3629	>	assertTrue(g.cancel(true));
3630	>	}
3631	>
3632	>	//--- tests of implementation details; not part of official tck ---
3633	>
3634	>	Object resultOf(CompletableFuture<?> f) {
3635	>	SecurityManager sm = System.getSecurityManager();
3636	>	if (sm != null) {
3637	>	try {
3638	>	System.setSecurityManager(null);
3639	>	} catch (SecurityException giveUp) {
3640	>	return "Reflection not available";
3641	>	}
3642	>	}
3643	>
3644	>	try {
3645	>	java.lang.reflect.Field resultField
3646	>	= CompletableFuture.class.getDeclaredField("result");
3647	>	resultField.setAccessible(true);
3648	>	return resultField.get(f);
3649	>	} catch (Throwable t) {
3650	>	throw new AssertionError(t);
3651	>	} finally {
3652	>	if (sm != null) System.setSecurityManager(sm);
3653	>	}
3654	>	}
3655	>
3656	>	public void testExceptionPropagationReusesResultObject() {
3657	>	if (!testImplementationDetails) return;
3658		for (ExecutionMode m : ExecutionMode.values())
2961	–	for (Integer v1 : new Integer[] { 1, null })
3659		{
3660	<	final AtomicInteger a = new AtomicInteger(0);
3661	<	final CFException ex1 = new CFException();
3662	<	final CFException ex2 = new CFException();
2966	<	final CompletableFuture<Integer> f = new CompletableFuture<>();
3660	>	final CFException ex = new CFException();
3661	>	final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
3662	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3663
3664	<	if (!createIncomplete) f.completeExceptionally(ex1);
3665	<	final CompletableFuture<Integer> g = m.whenComplete
2970	<	(f,
2971	<	(Integer x, Throwable t) -> {
2972	<	m.checkExecutionMode();
2973	<	threadAssertSame(t, ex1);
2974	<	threadAssertNull(x);
2975	<	a.getAndIncrement();
2976	<	throw ex2;
2977	<	});
2978	<	if (createIncomplete) f.completeExceptionally(ex1);
3664	>	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
3665	>	= new ArrayList<>();
3666
3667	<	checkCompletedExceptionally(f, ex1);
3668	<	checkCompletedWithWrappedException(g, ex1);
3669	<	assertEquals(1, a.get());
3667	>	funs.add((y) -> m.thenRun(y, new Noop(m)));
3668	>	funs.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
3669	>	funs.add((y) -> m.thenApply(y, new IncFunction(m)));
3670	>
3671	>	funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
3672	>	funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
3673	>	funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
3674	>
3675	>	funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
3676	>	funs.add((y) -> m.runAfterBoth(v42, y, new Noop(m)));
3677	>	funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3678	>	funs.add((y) -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
3679	>	funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
3680	>	funs.add((y) -> m.thenCombine(v42, y, new SubtractFunction(m)));
3681	>
3682	>	funs.add((y) -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
3683	>
3684	>	funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
3685	>
3686	>	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
3687	>	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {v42, y}));
3688	>	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
3689	>	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {incomplete, y}));
3690	>
3691	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3692	>	fun : funs) {
3693	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3694	>	f.completeExceptionally(ex);
3695	>	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3696	>	checkCompletedWithWrappedException(src, ex);
3697	>	CompletableFuture<?> dep = fun.apply(src);
3698	>	checkCompletedWithWrappedException(dep, ex);
3699	>	assertSame(resultOf(src), resultOf(dep));
3700	>	}
3701	>
3702	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3703	>	fun : funs) {
3704	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3705	>	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3706	>	CompletableFuture<?> dep = fun.apply(src);
3707	>	f.completeExceptionally(ex);
3708	>	checkCompletedWithWrappedException(src, ex);
3709	>	checkCompletedWithWrappedException(dep, ex);
3710	>	assertSame(resultOf(src), resultOf(dep));
3711	>	}
3712	>
3713	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3714	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3715	>	fun : funs) {
3716	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3717	>	f.cancel(mayInterruptIfRunning);
3718	>	checkCancelled(f);
3719	>	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3720	>	checkCompletedWithWrappedCancellationException(src);
3721	>	CompletableFuture<?> dep = fun.apply(src);
3722	>	checkCompletedWithWrappedCancellationException(dep);
3723	>	assertSame(resultOf(src), resultOf(dep));
3724	>	}
3725	>
3726	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3727	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3728	>	fun : funs) {
3729	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3730	>	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3731	>	CompletableFuture<?> dep = fun.apply(src);
3732	>	f.cancel(mayInterruptIfRunning);
3733	>	checkCancelled(f);
3734	>	checkCompletedWithWrappedCancellationException(src);
3735	>	checkCompletedWithWrappedCancellationException(dep);
3736	>	assertSame(resultOf(src), resultOf(dep));
3737	>	}
3738		}}
3739
3740	+	/**
3741	+	* Minimal completion stages throw UOE for all non-CompletionStage methods
3742	+	*/
3743	+	public void testMinimalCompletionStage_minimality() {
3744	+	if (!testImplementationDetails) return;
3745	+	Function<Method, String> toSignature =
3746	+	(method) -> method.getName() + Arrays.toString(method.getParameterTypes());
3747	+	Predicate<Method> isNotStatic =
3748	+	(method) -> (method.getModifiers() & Modifier.STATIC) == 0;
3749	+	List<Method> minimalMethods =
3750	+	Stream.of(Object.class, CompletionStage.class)
3751	+	.flatMap((klazz) -> Stream.of(klazz.getMethods()))
3752	+	.filter(isNotStatic)
3753	+	.collect(Collectors.toList());
3754	+	// Methods from CompletableFuture permitted NOT to throw UOE
3755	+	String[] signatureWhitelist = {
3756	+	"newIncompleteFuture[]",
3757	+	"defaultExecutor[]",
3758	+	"minimalCompletionStage[]",
3759	+	"copy[]",
3760	+	};
3761	+	Set<String> permittedMethodSignatures =
3762	+	Stream.concat(minimalMethods.stream().map(toSignature),
3763	+	Stream.of(signatureWhitelist))
3764	+	.collect(Collectors.toSet());
3765	+	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
3766	+	.filter(isNotStatic)
3767	+	.filter((method) -> !permittedMethodSignatures.contains(toSignature.apply(method)))
3768	+	.collect(Collectors.toList());
3769	+
3770	+	CompletionStage<Integer> minimalStage =
3771	+	new CompletableFuture<Integer>().minimalCompletionStage();
3772	+
3773	+	List<Method> bugs = new ArrayList<>();
3774	+	for (Method method : allMethods) {
3775	+	Class<?>[] parameterTypes = method.getParameterTypes();
3776	+	Object[] args = new Object[parameterTypes.length];
3777	+	// Manufacture boxed primitives for primitive params
3778	+	for (int i = 0; i < args.length; i++) {
3779	+	Class<?> type = parameterTypes[i];
3780	+	if (parameterTypes[i] == boolean.class)
3781	+	args[i] = false;
3782	+	else if (parameterTypes[i] == int.class)
3783	+	args[i] = 0;
3784	+	else if (parameterTypes[i] == long.class)
3785	+	args[i] = 0L;
3786	+	}
3787	+	try {
3788	+	method.invoke(minimalStage, args);
3789	+	bugs.add(method);
3790	+	}
3791	+	catch (java.lang.reflect.InvocationTargetException expected) {
3792	+	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
3793	+	bugs.add(method);
3794	+	// expected.getCause().printStackTrace();
3795	+	}
3796	+	}
3797	+	catch (ReflectiveOperationException bad) { throw new Error(bad); }
3798	+	}
3799	+	if (!bugs.isEmpty())
3800	+	throw new Error("Methods did not throw UOE: " + bugs.toString());
3801	+	}
3802	+
3803	+	static class Monad {
3804	+	static class ZeroException extends RuntimeException {
3805	+	public ZeroException() { super("monadic zero"); }
3806	+	}
3807	+	// "return", "unit"
3808	+	static <T> CompletableFuture<T> unit(T value) {
3809	+	return completedFuture(value);
3810	+	}
3811	+	// monadic zero ?
3812	+	static <T> CompletableFuture<T> zero() {
3813	+	return failedFuture(new ZeroException());
3814	+	}
3815	+	// >=>
3816	+	static <T,U,V> Function<T, CompletableFuture<V>> compose
3817	+	(Function<T, CompletableFuture<U>> f,
3818	+	Function<U, CompletableFuture<V>> g) {
3819	+	return (x) -> f.apply(x).thenCompose(g);
3820	+	}
3821	+
3822	+	static void assertZero(CompletableFuture<?> f) {
3823	+	try {
3824	+	f.getNow(null);
3825	+	throw new AssertionFailedError("should throw");
3826	+	} catch (CompletionException success) {
3827	+	assertTrue(success.getCause() instanceof ZeroException);
3828	+	}
3829	+	}
3830	+
3831	+	static <T> void assertFutureEquals(CompletableFuture<T> f,
3832	+	CompletableFuture<T> g) {
3833	+	T fval = null, gval = null;
3834	+	Throwable fex = null, gex = null;
3835	+
3836	+	try { fval = f.get(); }
3837	+	catch (ExecutionException ex) { fex = ex.getCause(); }
3838	+	catch (Throwable ex) { fex = ex; }
3839	+
3840	+	try { gval = g.get(); }
3841	+	catch (ExecutionException ex) { gex = ex.getCause(); }
3842	+	catch (Throwable ex) { gex = ex; }
3843	+
3844	+	if (fex != null || gex != null)
3845	+	assertSame(fex.getClass(), gex.getClass());
3846	+	else
3847	+	assertEquals(fval, gval);
3848	+	}
3849	+
3850	+	static class PlusFuture<T> extends CompletableFuture<T> {
3851	+	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
3852	+	}
3853	+
3854	+	/** Implements "monadic plus". */
3855	+	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
3856	+	CompletableFuture<? extends T> g) {
3857	+	PlusFuture<T> plus = new PlusFuture<T>();
3858	+	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
3859	+	try {
3860	+	if (ex == null) {
3861	+	if (plus.complete(result))
3862	+	if (plus.firstFailure.get() != null)
3863	+	plus.firstFailure.set(null);
3864	+	}
3865	+	else if (plus.firstFailure.compareAndSet(null, ex)) {
3866	+	if (plus.isDone())
3867	+	plus.firstFailure.set(null);
3868	+	}
3869	+	else {
3870	+	// first failure has precedence
3871	+	Throwable first = plus.firstFailure.getAndSet(null);
3872	+
3873	+	// may fail with "Self-suppression not permitted"
3874	+	try { first.addSuppressed(ex); }
3875	+	catch (Exception ignored) {}
3876	+
3877	+	plus.completeExceptionally(first);
3878	+	}
3879	+	} catch (Throwable unexpected) {
3880	+	plus.completeExceptionally(unexpected);
3881	+	}
3882	+	};
3883	+	f.whenComplete(action);
3884	+	g.whenComplete(action);
3885	+	return plus;
3886	+	}
3887	+	}
3888	+
3889	+	/**
3890	+	* CompletableFuture is an additive monad - sort of.
3891	+	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
3892	+	*/
3893	+	public void testAdditiveMonad() throws Throwable {
3894	+	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
3895	+	CompletableFuture<Long> zero = Monad.zero();
3896	+
3897	+	// Some mutually non-commutative functions
3898	+	Function<Long, CompletableFuture<Long>> triple
3899	+	= (x) -> Monad.unit(3 * x);
3900	+	Function<Long, CompletableFuture<Long>> inc
3901	+	= (x) -> Monad.unit(x + 1);
3902	+
3903	+	// unit is a right identity: m >>= unit === m
3904	+	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
3905	+	inc.apply(5L));
3906	+	// unit is a left identity: (unit x) >>= f === f x
3907	+	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
3908	+	inc.apply(5L));
3909	+
3910	+	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
3911	+	Monad.assertFutureEquals(
3912	+	unit.apply(5L).thenCompose(inc).thenCompose(triple),
3913	+	unit.apply(5L).thenCompose((x) -> inc.apply(x).thenCompose(triple)));
3914	+
3915	+	// The case for CompletableFuture as an additive monad is weaker...
3916	+
3917	+	// zero is a monadic zero
3918	+	Monad.assertZero(zero);
3919	+
3920	+	// left zero: zero >>= f === zero
3921	+	Monad.assertZero(zero.thenCompose(inc));
3922	+	// right zero: f >>= (\x -> zero) === zero
3923	+	Monad.assertZero(inc.apply(5L).thenCompose((x) -> zero));
3924	+
3925	+	// f plus zero === f
3926	+	Monad.assertFutureEquals(Monad.unit(5L),
3927	+	Monad.plus(Monad.unit(5L), zero));
3928	+	// zero plus f === f
3929	+	Monad.assertFutureEquals(Monad.unit(5L),
3930	+	Monad.plus(zero, Monad.unit(5L)));
3931	+	// zero plus zero === zero
3932	+	Monad.assertZero(Monad.plus(zero, zero));
3933	+	{
3934	+	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
3935	+	Monad.unit(8L));
3936	+	// non-determinism
3937	+	assertTrue(f.get() == 5L || f.get() == 8L);
3938	+	}
3939	+
3940	+	CompletableFuture<Long> godot = new CompletableFuture<>();
3941	+	// f plus godot === f (doesn't wait for godot)
3942	+	Monad.assertFutureEquals(Monad.unit(5L),
3943	+	Monad.plus(Monad.unit(5L), godot));
3944	+	// godot plus f === f (doesn't wait for godot)
3945	+	Monad.assertFutureEquals(Monad.unit(5L),
3946	+	Monad.plus(godot, Monad.unit(5L)));
3947	+	}
3948	+
3949	+	/**
3950	+	* A single CompletableFuture with many dependents.
3951	+	* A demo of scalability - runtime is O(n).
3952	+	*/
3953	+	public void testManyDependents() throws Throwable {
3954	+	final int n = 1_000;
3955	+	final CompletableFuture<Void> head = new CompletableFuture<>();
3956	+	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
3957	+	final AtomicInteger count = new AtomicInteger(0);
3958	+	for (int i = 0; i < n; i++) {
3959	+	head.thenRun(() -> count.getAndIncrement());
3960	+	head.thenAccept((x) -> count.getAndIncrement());
3961	+	head.thenApply((x) -> count.getAndIncrement());
3962	+
3963	+	head.runAfterBoth(complete, () -> count.getAndIncrement());
3964	+	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
3965	+	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
3966	+	complete.runAfterBoth(head, () -> count.getAndIncrement());
3967	+	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
3968	+	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
3969	+
3970	+	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
3971	+	head.acceptEither(new CompletableFuture<Void>(), (x) -> count.getAndIncrement());
3972	+	head.applyToEither(new CompletableFuture<Void>(), (x) -> count.getAndIncrement());
3973	+	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
3974	+	new CompletableFuture<Void>().acceptEither(head, (x) -> count.getAndIncrement());
3975	+	new CompletableFuture<Void>().applyToEither(head, (x) -> count.getAndIncrement());
3976	+	}
3977	+	head.complete(null);
3978	+	assertEquals(5 * 3 * n, count.get());
3979	+	}
3980	+
3981	+	//     static <U> U join(CompletionStage<U> stage) {
3982	+	//         CompletableFuture<U> f = new CompletableFuture<>();
3983	+	//         stage.whenComplete((v, ex) -> {
3984	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
3985	+	//         });
3986	+	//         return f.join();
3987	+	//     }
3988	+
3989	+	//     static <U> boolean isDone(CompletionStage<U> stage) {
3990	+	//         CompletableFuture<U> f = new CompletableFuture<>();
3991	+	//         stage.whenComplete((v, ex) -> {
3992	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
3993	+	//         });
3994	+	//         return f.isDone();
3995	+	//     }
3996	+
3997	+	//     static <U> U join2(CompletionStage<U> stage) {
3998	+	//         return stage.toCompletableFuture().copy().join();
3999	+	//     }
4000	+
4001	+	//     static <U> boolean isDone2(CompletionStage<U> stage) {
4002	+	//         return stage.toCompletableFuture().copy().isDone();
4003	+	//     }
4004	+
4005		}

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