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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.77 by jsr166, Sat Jun 7 21:46:50 2014 UTC vs.
Revision 1.136 by jsr166, Sun Nov 15 20:17:11 2015 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());
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 318 | Line 312 | public class CompletableFutureTest exten
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());
#	Line 327 | Line 322 | public class CompletableFutureTest exten
322		final CompletableFuture<Void> h = m.thenRun(f, new Noop(m));
323		assertEquals(2, f.getNumberOfDependents());
324		assertEquals(0, h.getNumberOfDependents());
325	<	f.complete(1);
325	>	assertTrue(f.complete(v1));
326		checkCompletedNormally(g, null);
327		checkCompletedNormally(h, null);
328		assertEquals(0, f.getNumberOfDependents());
#	Line 344 | 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	<	f.cancel(mayInterruptIfRunning);
351	>	assertTrue(f.cancel(mayInterruptIfRunning));
352		assertTrue(f.toString().contains("[Completed exceptionally]"));
353		}
354		}
#	Line 523 | Line 518 | public class CompletableFutureTest exten
518		}
519		}
520
526	–
521		class CompletableFutureInc extends CheckedIntegerAction
522		implements Function<Integer, CompletableFuture<Integer>>
523		{
#	Line 532 | 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 562 | 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 643 | 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 840 | 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) -> {
846	–	// 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);
#	Line 868 | 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 879 | 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 })
884	–	for (Integer v1 : new Integer[] { 1, null })
885		{
886		final AtomicInteger a = new AtomicInteger(0);
887		final CFException ex1 = new CFException();
#	Line 890 | 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 898 | 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
#	Line 905 | Line 906 | public class CompletableFutureTest exten
906		* whenComplete action executes on normal completion, propagating
907		* source result.
908		*/
909	<	public void testWhenComplete_normalCompletion1() {
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) f.complete(v1);
916	>	if (!createIncomplete) assertTrue(f.complete(v1));
917		final CompletableFuture<Integer> g = m.whenComplete
918		(f,
919	<	(Integer x, Throwable t) -> {
919	>	(Integer result, Throwable t) -> {
920		m.checkExecutionMode();
921	<	threadAssertSame(x, v1);
921	>	threadAssertSame(result, v1);
922		threadAssertNull(t);
923		a.getAndIncrement();
924		});
925	<	if (createIncomplete) f.complete(v1);
925	>	if (createIncomplete) assertTrue(f.complete(v1));
926
927		checkCompletedNormally(g, v1);
928		checkCompletedNormally(f, v1);
#	Line 935 | Line 936 | public class CompletableFutureTest exten
936		public void testWhenComplete_exceptionalCompletion() {
937		for (ExecutionMode m : ExecutionMode.values())
938		for (boolean createIncomplete : new boolean[] { true, false })
938	–	for (Integer v1 : new Integer[] { 1, null })
939		{
940		final AtomicInteger a = new AtomicInteger(0);
941		final CFException ex = new CFException();
#	Line 943 | Line 943 | public class CompletableFutureTest exten
943		if (!createIncomplete) f.completeExceptionally(ex);
944		final CompletableFuture<Integer> g = m.whenComplete
945		(f,
946	<	(Integer x, Throwable t) -> {
946	>	(Integer result, Throwable t) -> {
947		m.checkExecutionMode();
948	<	threadAssertNull(x);
948	>	threadAssertNull(result);
949		threadAssertSame(t, ex);
950		a.getAndIncrement();
951		});
#	Line 970 | Line 970 | public class CompletableFutureTest exten
970		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
971		final CompletableFuture<Integer> g = m.whenComplete
972		(f,
973	<	(Integer x, Throwable t) -> {
973	>	(Integer result, Throwable t) -> {
974		m.checkExecutionMode();
975	<	threadAssertNull(x);
975	>	threadAssertNull(result);
976		threadAssertTrue(t instanceof CancellationException);
977		a.getAndIncrement();
978		});
#	Line 987 | Line 987 | public class CompletableFutureTest exten
987		* If a whenComplete action throws an exception when triggered by
988		* a normal completion, it completes exceptionally
989		*/
990	<	public void testWhenComplete_actionFailed() {
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 })
#	Line 995 | Line 995 | public class CompletableFutureTest exten
995		final AtomicInteger a = new AtomicInteger(0);
996		final CFException ex = new CFException();
997		final CompletableFuture<Integer> f = new CompletableFuture<>();
998	<	if (!createIncomplete) f.complete(v1);
998	>	if (!createIncomplete) assertTrue(f.complete(v1));
999		final CompletableFuture<Integer> g = m.whenComplete
1000		(f,
1001	<	(Integer x, Throwable t) -> {
1001	>	(Integer result, Throwable t) -> {
1002		m.checkExecutionMode();
1003	<	threadAssertSame(x, v1);
1003	>	threadAssertSame(result, v1);
1004		threadAssertNull(t);
1005		a.getAndIncrement();
1006		throw ex;
1007		});
1008	<	if (createIncomplete) f.complete(v1);
1008	>	if (createIncomplete) assertTrue(f.complete(v1));
1009
1010		checkCompletedWithWrappedException(g, ex);
1011		checkCompletedNormally(f, v1);
#	Line 1015 | Line 1015 | public class CompletableFutureTest exten
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.
1018	>	* exception takes precedence (unlike handle)
1019		*/
1020	<	public void testWhenComplete_actionFailedSourceFailed() {
1020	>	public void testWhenComplete_sourceFailedActionFailed() {
1021		for (boolean createIncomplete : new boolean[] { true, false })
1022		for (ExecutionMode m : ExecutionMode.values())
1023	–	for (Integer v1 : new Integer[] { 1, null })
1023		{
1024		final AtomicInteger a = new AtomicInteger(0);
1025		final CFException ex1 = new CFException();
#	Line 1030 | Line 1029 | public class CompletableFutureTest exten
1029		if (!createIncomplete) f.completeExceptionally(ex1);
1030		final CompletableFuture<Integer> g = m.whenComplete
1031		(f,
1032	<	(Integer x, Throwable t) -> {
1032	>	(Integer result, Throwable t) -> {
1033		m.checkExecutionMode();
1034		threadAssertSame(t, ex1);
1035	<	threadAssertNull(x);
1035	>	threadAssertNull(result);
1036		a.getAndIncrement();
1037		throw ex2;
1038		});
#	Line 1055 | Line 1054 | public class CompletableFutureTest exten
1054		{
1055		final CompletableFuture<Integer> f = new CompletableFuture<>();
1056		final AtomicInteger a = new AtomicInteger(0);
1057	<	if (!createIncomplete) f.complete(v1);
1057	>	if (!createIncomplete) assertTrue(f.complete(v1));
1058		final CompletableFuture<Integer> g = m.handle
1059		(f,
1060	<	(Integer x, Throwable t) -> {
1060	>	(Integer result, Throwable t) -> {
1061		m.checkExecutionMode();
1062	<	threadAssertSame(x, v1);
1062	>	threadAssertSame(result, v1);
1063		threadAssertNull(t);
1064		a.getAndIncrement();
1065		return inc(v1);
1066		});
1067	<	if (createIncomplete) f.complete(v1);
1067	>	if (createIncomplete) assertTrue(f.complete(v1));
1068
1069		checkCompletedNormally(g, inc(v1));
1070		checkCompletedNormally(f, v1);
#	Line 1087 | Line 1086 | public class CompletableFutureTest exten
1086		if (!createIncomplete) f.completeExceptionally(ex);
1087		final CompletableFuture<Integer> g = m.handle
1088		(f,
1089	<	(Integer x, Throwable t) -> {
1089	>	(Integer result, Throwable t) -> {
1090		m.checkExecutionMode();
1091	<	threadAssertNull(x);
1091	>	threadAssertNull(result);
1092		threadAssertSame(t, ex);
1093		a.getAndIncrement();
1094		return v1;
#	Line 1116 | Line 1115 | public class CompletableFutureTest exten
1115		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1116		final CompletableFuture<Integer> g = m.handle
1117		(f,
1118	<	(Integer x, Throwable t) -> {
1118	>	(Integer result, Throwable t) -> {
1119		m.checkExecutionMode();
1120	<	threadAssertNull(x);
1120	>	threadAssertNull(result);
1121		threadAssertTrue(t instanceof CancellationException);
1122		a.getAndIncrement();
1123		return v1;
#	Line 1131 | Line 1130 | public class CompletableFutureTest exten
1130		}}
1131
1132		/**
1133	<	* handle result completes exceptionally if action does
1133	>	* If a "handle action" throws an exception when triggered by
1134	>	* a normal completion, it completes exceptionally
1135		*/
1136	<	public void testHandle_sourceFailedActionFailed() {
1136	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1137		for (ExecutionMode m : ExecutionMode.values())
1138		for (boolean createIncomplete : new boolean[] { true, false })
1139	+	for (Integer v1 : new Integer[] { 1, null })
1140		{
1141		final CompletableFuture<Integer> f = new CompletableFuture<>();
1142		final AtomicInteger a = new AtomicInteger(0);
1143	<	final CFException ex1 = new CFException();
1144	<	final CFException ex2 = new CFException();
1144	<	if (!createIncomplete) f.completeExceptionally(ex1);
1143	>	final CFException ex = new CFException();
1144	>	if (!createIncomplete) assertTrue(f.complete(v1));
1145		final CompletableFuture<Integer> g = m.handle
1146		(f,
1147	<	(Integer x, Throwable t) -> {
1147	>	(Integer result, Throwable t) -> {
1148		m.checkExecutionMode();
1149	<	threadAssertNull(x);
1150	<	threadAssertSame(ex1, t);
1149	>	threadAssertSame(result, v1);
1150	>	threadAssertNull(t);
1151		a.getAndIncrement();
1152	<	throw ex2;
1152	>	throw ex;
1153		});
1154	<	if (createIncomplete) f.completeExceptionally(ex1);
1154	>	if (createIncomplete) assertTrue(f.complete(v1));
1155
1156	<	checkCompletedWithWrappedException(g, ex2);
1157	<	checkCompletedExceptionally(f, ex1);
1156	>	checkCompletedWithWrappedException(g, ex);
1157	>	checkCompletedNormally(f, v1);
1158		assertEquals(1, a.get());
1159		}}
1160
1161	<	public void testHandle_sourceCompletedNormallyActionFailed() {
1162	<	for (ExecutionMode m : ExecutionMode.values())
1161	>	/**
1162	>	* If a "handle action" throws an exception when triggered by
1163	>	* a source completion that also throws an exception, the action
1164	>	* exception takes precedence (unlike whenComplete)
1165	>	*/
1166	>	public void testHandle_sourceFailedActionFailed() {
1167		for (boolean createIncomplete : new boolean[] { true, false })
1168	<	for (Integer v1 : new Integer[] { 1, null })
1168	>	for (ExecutionMode m : ExecutionMode.values())
1169		{
1166	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
1170		final AtomicInteger a = new AtomicInteger(0);
1171	<	final CFException ex = new CFException();
1172	<	if (!createIncomplete) f.complete(v1);
1171	>	final CFException ex1 = new CFException();
1172	>	final CFException ex2 = new CFException();
1173	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1174	>
1175	>	if (!createIncomplete) f.completeExceptionally(ex1);
1176		final CompletableFuture<Integer> g = m.handle
1177		(f,
1178	<	(Integer x, Throwable t) -> {
1178	>	(Integer result, Throwable t) -> {
1179		m.checkExecutionMode();
1180	<	threadAssertSame(x, v1);
1181	<	threadAssertNull(t);
1180	>	threadAssertNull(result);
1181	>	threadAssertSame(ex1, t);
1182		a.getAndIncrement();
1183	<	throw ex;
1183	>	throw ex2;
1184		});
1185	<	if (createIncomplete) f.complete(v1);
1185	>	if (createIncomplete) f.completeExceptionally(ex1);
1186
1187	<	checkCompletedWithWrappedException(g, ex);
1188	<	checkCompletedNormally(f, v1);
1187	>	checkCompletedWithWrappedException(g, ex2);
1188	>	checkCompletedExceptionally(f, ex1);
1189		assertEquals(1, a.get());
1190		}}
1191
#	Line 1257 | Line 1263 | public class CompletableFutureTest exten
1263		*/
1264		public void testThenRun_normalCompletion() {
1265		for (ExecutionMode m : ExecutionMode.values())
1260	–	for (boolean createIncomplete : new boolean[] { true, false })
1266		for (Integer v1 : new Integer[] { 1, null })
1267		{
1268		final CompletableFuture<Integer> f = new CompletableFuture<>();
1269	<	final Noop r = new Noop(m);
1270	<	if (!createIncomplete) f.complete(v1);
1266	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1267	<	if (createIncomplete) {
1268	<	checkIncomplete(g);
1269	<	f.complete(v1);
1270	<	}
1269	>	final Noop[] rs = new Noop[6];
1270	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1271
1272	<	checkCompletedNormally(g, null);
1272	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1273	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1274	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1275	>	checkIncomplete(h0);
1276	>	checkIncomplete(h1);
1277	>	checkIncomplete(h2);
1278	>	assertTrue(f.complete(v1));
1279	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1280	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1281	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1282	>
1283	>	checkCompletedNormally(h0, null);
1284	>	checkCompletedNormally(h1, null);
1285	>	checkCompletedNormally(h2, null);
1286	>	checkCompletedNormally(h3, null);
1287	>	checkCompletedNormally(h4, null);
1288	>	checkCompletedNormally(h5, null);
1289		checkCompletedNormally(f, v1);
1290	<	r.assertInvoked();
1290	>	for (Noop r : rs) r.assertInvoked();
1291		}}
1292
1293		/**
#	Line 1280 | Line 1296 | public class CompletableFutureTest exten
1296		*/
1297		public void testThenRun_exceptionalCompletion() {
1298		for (ExecutionMode m : ExecutionMode.values())
1283	–	for (boolean createIncomplete : new boolean[] { true, false })
1299		{
1300		final CFException ex = new CFException();
1301		final CompletableFuture<Integer> f = new CompletableFuture<>();
1302	<	final Noop r = new Noop(m);
1303	<	if (!createIncomplete) f.completeExceptionally(ex);
1289	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1290	<	if (createIncomplete) {
1291	<	checkIncomplete(g);
1292	<	f.completeExceptionally(ex);
1293	<	}
1302	>	final Noop[] rs = new Noop[6];
1303	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1304
1305	<	checkCompletedWithWrappedException(g, ex);
1305	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1306	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1307	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1308	>	checkIncomplete(h0);
1309	>	checkIncomplete(h1);
1310	>	checkIncomplete(h2);
1311	>	assertTrue(f.completeExceptionally(ex));
1312	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1313	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1314	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1315	>
1316	>	checkCompletedWithWrappedException(h0, ex);
1317	>	checkCompletedWithWrappedException(h1, ex);
1318	>	checkCompletedWithWrappedException(h2, ex);
1319	>	checkCompletedWithWrappedException(h3, ex);
1320	>	checkCompletedWithWrappedException(h4, ex);
1321	>	checkCompletedWithWrappedException(h5, ex);
1322		checkCompletedExceptionally(f, ex);
1323	<	r.assertNotInvoked();
1323	>	for (Noop r : rs) r.assertNotInvoked();
1324		}}
1325
1326		/**
#	Line 1302 | Line 1328 | public class CompletableFutureTest exten
1328		*/
1329		public void testThenRun_sourceCancelled() {
1330		for (ExecutionMode m : ExecutionMode.values())
1305	–	for (boolean createIncomplete : new boolean[] { true, false })
1331		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1332		{
1333		final CompletableFuture<Integer> f = new CompletableFuture<>();
1334	<	final Noop r = new Noop(m);
1335	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1311	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1312	<	if (createIncomplete) {
1313	<	checkIncomplete(g);
1314	<	assertTrue(f.cancel(mayInterruptIfRunning));
1315	<	}
1334	>	final Noop[] rs = new Noop[6];
1335	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1336
1337	<	checkCompletedWithWrappedCancellationException(g);
1337	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1338	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1339	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1340	>	checkIncomplete(h0);
1341	>	checkIncomplete(h1);
1342	>	checkIncomplete(h2);
1343	>	assertTrue(f.cancel(mayInterruptIfRunning));
1344	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1345	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1346	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1347	>
1348	>	checkCompletedWithWrappedCancellationException(h0);
1349	>	checkCompletedWithWrappedCancellationException(h1);
1350	>	checkCompletedWithWrappedCancellationException(h2);
1351	>	checkCompletedWithWrappedCancellationException(h3);
1352	>	checkCompletedWithWrappedCancellationException(h4);
1353	>	checkCompletedWithWrappedCancellationException(h5);
1354		checkCancelled(f);
1355	<	r.assertNotInvoked();
1355	>	for (Noop r : rs) r.assertNotInvoked();
1356		}}
1357
1358		/**
#	Line 1324 | Line 1360 | public class CompletableFutureTest exten
1360		*/
1361		public void testThenRun_actionFailed() {
1362		for (ExecutionMode m : ExecutionMode.values())
1327	–	for (boolean createIncomplete : new boolean[] { true, false })
1363		for (Integer v1 : new Integer[] { 1, null })
1364		{
1365		final CompletableFuture<Integer> f = new CompletableFuture<>();
1366	<	final FailingRunnable r = new FailingRunnable(m);
1367	<	if (!createIncomplete) f.complete(v1);
1333	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1334	<	if (createIncomplete) {
1335	<	checkIncomplete(g);
1336	<	f.complete(v1);
1337	<	}
1366	>	final FailingRunnable[] rs = new FailingRunnable[6];
1367	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1368
1369	<	checkCompletedWithWrappedCFException(g);
1369	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1370	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1371	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1372	>	assertTrue(f.complete(v1));
1373	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1374	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1375	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1376	>
1377	>	checkCompletedWithWrappedCFException(h0);
1378	>	checkCompletedWithWrappedCFException(h1);
1379	>	checkCompletedWithWrappedCFException(h2);
1380	>	checkCompletedWithWrappedCFException(h3);
1381	>	checkCompletedWithWrappedCFException(h4);
1382	>	checkCompletedWithWrappedCFException(h5);
1383		checkCompletedNormally(f, v1);
1384		}}
1385
#	Line 1345 | Line 1388 | public class CompletableFutureTest exten
1388		*/
1389		public void testThenApply_normalCompletion() {
1390		for (ExecutionMode m : ExecutionMode.values())
1348	–	for (boolean createIncomplete : new boolean[] { true, false })
1391		for (Integer v1 : new Integer[] { 1, null })
1392		{
1393		final CompletableFuture<Integer> f = new CompletableFuture<>();
1394	<	final IncFunction r = new IncFunction(m);
1395	<	if (!createIncomplete) f.complete(v1);
1354	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1355	<	if (createIncomplete) {
1356	<	checkIncomplete(g);
1357	<	f.complete(v1);
1358	<	}
1394	>	final IncFunction[] rs = new IncFunction[4];
1395	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1396
1397	<	checkCompletedNormally(g, inc(v1));
1397	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1398	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1399	>	checkIncomplete(h0);
1400	>	checkIncomplete(h1);
1401	>	assertTrue(f.complete(v1));
1402	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1403	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1404	>
1405	>	checkCompletedNormally(h0, inc(v1));
1406	>	checkCompletedNormally(h1, inc(v1));
1407	>	checkCompletedNormally(h2, inc(v1));
1408	>	checkCompletedNormally(h3, inc(v1));
1409		checkCompletedNormally(f, v1);
1410	<	r.assertValue(inc(v1));
1410	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1411		}}
1412
1413		/**
#	Line 1368 | Line 1416 | public class CompletableFutureTest exten
1416		*/
1417		public void testThenApply_exceptionalCompletion() {
1418		for (ExecutionMode m : ExecutionMode.values())
1371	–	for (boolean createIncomplete : new boolean[] { true, false })
1419		{
1420		final CFException ex = new CFException();
1421		final CompletableFuture<Integer> f = new CompletableFuture<>();
1422	<	final IncFunction r = new IncFunction(m);
1423	<	if (!createIncomplete) f.completeExceptionally(ex);
1377	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1378	<	if (createIncomplete) {
1379	<	checkIncomplete(g);
1380	<	f.completeExceptionally(ex);
1381	<	}
1422	>	final IncFunction[] rs = new IncFunction[4];
1423	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1424
1425	<	checkCompletedWithWrappedException(g, ex);
1425	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1426	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1427	>	assertTrue(f.completeExceptionally(ex));
1428	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1429	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1430	>
1431	>	checkCompletedWithWrappedException(h0, ex);
1432	>	checkCompletedWithWrappedException(h1, ex);
1433	>	checkCompletedWithWrappedException(h2, ex);
1434	>	checkCompletedWithWrappedException(h3, ex);
1435		checkCompletedExceptionally(f, ex);
1436	<	r.assertNotInvoked();
1436	>	for (IncFunction r : rs) r.assertNotInvoked();
1437		}}
1438
1439		/**
#	Line 1390 | Line 1441 | public class CompletableFutureTest exten
1441		*/
1442		public void testThenApply_sourceCancelled() {
1443		for (ExecutionMode m : ExecutionMode.values())
1393	–	for (boolean createIncomplete : new boolean[] { true, false })
1444		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1445		{
1446		final CompletableFuture<Integer> f = new CompletableFuture<>();
1447	<	final IncFunction r = new IncFunction(m);
1448	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1399	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1400	<	if (createIncomplete) {
1401	<	checkIncomplete(g);
1402	<	assertTrue(f.cancel(mayInterruptIfRunning));
1403	<	}
1447	>	final IncFunction[] rs = new IncFunction[4];
1448	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1449
1450	<	checkCompletedWithWrappedCancellationException(g);
1450	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1451	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1452	>	assertTrue(f.cancel(mayInterruptIfRunning));
1453	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1454	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1455	>
1456	>	checkCompletedWithWrappedCancellationException(h0);
1457	>	checkCompletedWithWrappedCancellationException(h1);
1458	>	checkCompletedWithWrappedCancellationException(h2);
1459	>	checkCompletedWithWrappedCancellationException(h3);
1460		checkCancelled(f);
1461	<	r.assertNotInvoked();
1461	>	for (IncFunction r : rs) r.assertNotInvoked();
1462		}}
1463
1464		/**
#	Line 1412 | Line 1466 | public class CompletableFutureTest exten
1466		*/
1467		public void testThenApply_actionFailed() {
1468		for (ExecutionMode m : ExecutionMode.values())
1415	–	for (boolean createIncomplete : new boolean[] { true, false })
1469		for (Integer v1 : new Integer[] { 1, null })
1470		{
1471		final CompletableFuture<Integer> f = new CompletableFuture<>();
1472	<	final FailingFunction r = new FailingFunction(m);
1473	<	if (!createIncomplete) f.complete(v1);
1421	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1422	<	if (createIncomplete) {
1423	<	checkIncomplete(g);
1424	<	f.complete(v1);
1425	<	}
1472	>	final FailingFunction[] rs = new FailingFunction[4];
1473	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1474
1475	<	checkCompletedWithWrappedCFException(g);
1475	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1476	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1477	>	assertTrue(f.complete(v1));
1478	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1479	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1480	>
1481	>	checkCompletedWithWrappedCFException(h0);
1482	>	checkCompletedWithWrappedCFException(h1);
1483	>	checkCompletedWithWrappedCFException(h2);
1484	>	checkCompletedWithWrappedCFException(h3);
1485		checkCompletedNormally(f, v1);
1486		}}
1487
#	Line 1433 | Line 1490 | public class CompletableFutureTest exten
1490		*/
1491		public void testThenAccept_normalCompletion() {
1492		for (ExecutionMode m : ExecutionMode.values())
1436	–	for (boolean createIncomplete : new boolean[] { true, false })
1493		for (Integer v1 : new Integer[] { 1, null })
1494		{
1495		final CompletableFuture<Integer> f = new CompletableFuture<>();
1496	<	final NoopConsumer r = new NoopConsumer(m);
1497	<	if (!createIncomplete) f.complete(v1);
1442	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1443	<	if (createIncomplete) {
1444	<	checkIncomplete(g);
1445	<	f.complete(v1);
1446	<	}
1496	>	final NoopConsumer[] rs = new NoopConsumer[4];
1497	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1498
1499	<	checkCompletedNormally(g, null);
1500	<	r.assertValue(v1);
1499	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1500	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1501	>	checkIncomplete(h0);
1502	>	checkIncomplete(h1);
1503	>	assertTrue(f.complete(v1));
1504	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1505	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1506	>
1507	>	checkCompletedNormally(h0, null);
1508	>	checkCompletedNormally(h1, null);
1509	>	checkCompletedNormally(h2, null);
1510	>	checkCompletedNormally(h3, null);
1511		checkCompletedNormally(f, v1);
1512	+	for (NoopConsumer r : rs) r.assertValue(v1);
1513		}}
1514
1515		/**
#	Line 1456 | Line 1518 | public class CompletableFutureTest exten
1518		*/
1519		public void testThenAccept_exceptionalCompletion() {
1520		for (ExecutionMode m : ExecutionMode.values())
1459	–	for (boolean createIncomplete : new boolean[] { true, false })
1521		{
1522		final CFException ex = new CFException();
1523		final CompletableFuture<Integer> f = new CompletableFuture<>();
1524	<	final NoopConsumer r = new NoopConsumer(m);
1525	<	if (!createIncomplete) f.completeExceptionally(ex);
1465	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1466	<	if (createIncomplete) {
1467	<	checkIncomplete(g);
1468	<	f.completeExceptionally(ex);
1469	<	}
1524	>	final NoopConsumer[] rs = new NoopConsumer[4];
1525	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1526
1527	<	checkCompletedWithWrappedException(g, ex);
1527	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1528	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1529	>	assertTrue(f.completeExceptionally(ex));
1530	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1531	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1532	>
1533	>	checkCompletedWithWrappedException(h0, ex);
1534	>	checkCompletedWithWrappedException(h1, ex);
1535	>	checkCompletedWithWrappedException(h2, ex);
1536	>	checkCompletedWithWrappedException(h3, ex);
1537		checkCompletedExceptionally(f, ex);
1538	<	r.assertNotInvoked();
1538	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1539		}}
1540
1541		/**
#	Line 1478 | Line 1543 | public class CompletableFutureTest exten
1543		*/
1544		public void testThenAccept_sourceCancelled() {
1545		for (ExecutionMode m : ExecutionMode.values())
1481	–	for (boolean createIncomplete : new boolean[] { true, false })
1546		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1547		{
1548		final CompletableFuture<Integer> f = new CompletableFuture<>();
1549	<	final NoopConsumer r = new NoopConsumer(m);
1550	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1487	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1488	<	if (createIncomplete) {
1489	<	checkIncomplete(g);
1490	<	assertTrue(f.cancel(mayInterruptIfRunning));
1491	<	}
1549	>	final NoopConsumer[] rs = new NoopConsumer[4];
1550	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1551
1552	<	checkCompletedWithWrappedCancellationException(g);
1552	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1553	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1554	>	assertTrue(f.cancel(mayInterruptIfRunning));
1555	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1556	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1557	>
1558	>	checkCompletedWithWrappedCancellationException(h0);
1559	>	checkCompletedWithWrappedCancellationException(h1);
1560	>	checkCompletedWithWrappedCancellationException(h2);
1561	>	checkCompletedWithWrappedCancellationException(h3);
1562		checkCancelled(f);
1563	<	r.assertNotInvoked();
1563	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1564		}}
1565
1566		/**
#	Line 1500 | Line 1568 | public class CompletableFutureTest exten
1568		*/
1569		public void testThenAccept_actionFailed() {
1570		for (ExecutionMode m : ExecutionMode.values())
1503	–	for (boolean createIncomplete : new boolean[] { true, false })
1571		for (Integer v1 : new Integer[] { 1, null })
1572		{
1573		final CompletableFuture<Integer> f = new CompletableFuture<>();
1574	<	final FailingConsumer r = new FailingConsumer(m);
1575	<	if (!createIncomplete) f.complete(v1);
1509	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1510	<	if (createIncomplete) {
1511	<	checkIncomplete(g);
1512	<	f.complete(v1);
1513	<	}
1574	>	final FailingConsumer[] rs = new FailingConsumer[4];
1575	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1576
1577	<	checkCompletedWithWrappedCFException(g);
1577	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1578	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1579	>	assertTrue(f.complete(v1));
1580	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1581	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1582	>
1583	>	checkCompletedWithWrappedCFException(h0);
1584	>	checkCompletedWithWrappedCFException(h1);
1585	>	checkCompletedWithWrappedCFException(h2);
1586	>	checkCompletedWithWrappedCFException(h3);
1587		checkCompletedNormally(f, v1);
1588		}}
1589
#	Line 1522 | Line 1593 | public class CompletableFutureTest exten
1593		*/
1594		public void testThenCombine_normalCompletion() {
1595		for (ExecutionMode m : ExecutionMode.values())
1525	–	for (boolean createIncomplete : new boolean[] { true, false })
1596		for (boolean fFirst : new boolean[] { true, false })
1597		for (Integer v1 : new Integer[] { 1, null })
1598		for (Integer v2 : new Integer[] { 2, null })
1599		{
1600		final CompletableFuture<Integer> f = new CompletableFuture<>();
1601		final CompletableFuture<Integer> g = new CompletableFuture<>();
1602	<	final SubtractFunction r = new SubtractFunction(m);
1602	>	final SubtractFunction[] rs = new SubtractFunction[6];
1603	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1604
1605	<	if (fFirst) f.complete(v1); else g.complete(v2);
1606	<	if (!createIncomplete)
1607	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1608	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1609	<	if (createIncomplete) {
1610	<	checkIncomplete(h);
1611	<	r.assertNotInvoked();
1612	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1613	<	}
1605	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1606	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1607	>	final Integer w1 =  fFirst ? v1 : v2;
1608	>	final Integer w2 = !fFirst ? v1 : v2;
1609	>
1610	>	final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1611	>	final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1612	>	assertTrue(fst.complete(w1));
1613	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1614	>	final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1615	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1616	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1617	>	checkCompletedNormally(h1, subtract(w1, w1));
1618	>	checkCompletedNormally(h3, subtract(w1, w1));
1619	>	rs[1].assertValue(subtract(w1, w1));
1620	>	rs[3].assertValue(subtract(w1, w1));
1621	>	assertTrue(snd.complete(w2));
1622	>	final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1623	>
1624	>	checkCompletedNormally(h0, subtract(v1, v2));
1625	>	checkCompletedNormally(h2, subtract(v1, v2));
1626	>	checkCompletedNormally(h4, subtract(v1, v2));
1627	>	rs[0].assertValue(subtract(v1, v2));
1628	>	rs[2].assertValue(subtract(v1, v2));
1629	>	rs[4].assertValue(subtract(v1, v2));
1630
1544	–	checkCompletedNormally(h, subtract(v1, v2));
1631		checkCompletedNormally(f, v1);
1632		checkCompletedNormally(g, v2);
1547	–	r.assertValue(subtract(v1, v2));
1633		}}
1634
1635		/**
1636		* thenCombine result completes exceptionally after exceptional
1637		* completion of either source
1638		*/
1639	<	public void testThenCombine_exceptionalCompletion() {
1639	>	public void testThenCombine_exceptionalCompletion() throws Throwable {
1640		for (ExecutionMode m : ExecutionMode.values())
1556	–	for (boolean createIncomplete : new boolean[] { true, false })
1641		for (boolean fFirst : new boolean[] { true, false })
1642	+	for (boolean failFirst : new boolean[] { true, false })
1643		for (Integer v1 : new Integer[] { 1, null })
1644		{
1645		final CompletableFuture<Integer> f = new CompletableFuture<>();
1646		final CompletableFuture<Integer> g = new CompletableFuture<>();
1647		final CFException ex = new CFException();
1648	<	final SubtractFunction r = new SubtractFunction(m);
1649	<
1650	<	(fFirst ? f : g).complete(v1);
1651	<	if (!createIncomplete)
1652	<	(!fFirst ? f : g).completeExceptionally(ex);
1653	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1654	<	if (createIncomplete) {
1655	<	checkIncomplete(h);
1656	<	(!fFirst ? f : g).completeExceptionally(ex);
1657	<	}
1648	>	final SubtractFunction r1 = new SubtractFunction(m);
1649	>	final SubtractFunction r2 = new SubtractFunction(m);
1650	>	final SubtractFunction r3 = new SubtractFunction(m);
1651	>
1652	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1653	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1654	>	final Callable<Boolean> complete1 = failFirst ?
1655	>	() -> fst.completeExceptionally(ex) :
1656	>	() -> fst.complete(v1);
1657	>	final Callable<Boolean> complete2 = failFirst ?
1658	>	() -> snd.complete(v1) :
1659	>	() -> snd.completeExceptionally(ex);
1660	>
1661	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1662	>	assertTrue(complete1.call());
1663	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1664	>	checkIncomplete(h1);
1665	>	checkIncomplete(h2);
1666	>	assertTrue(complete2.call());
1667	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1668
1669	<	checkCompletedWithWrappedException(h, ex);
1670	<	r.assertNotInvoked();
1671	<	checkCompletedNormally(fFirst ? f : g, v1);
1672	<	checkCompletedExceptionally(!fFirst ? f : g, ex);
1669	>	checkCompletedWithWrappedException(h1, ex);
1670	>	checkCompletedWithWrappedException(h2, ex);
1671	>	checkCompletedWithWrappedException(h3, ex);
1672	>	r1.assertNotInvoked();
1673	>	r2.assertNotInvoked();
1674	>	r3.assertNotInvoked();
1675	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1676	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1677		}}
1678
1679		/**
1680		* thenCombine result completes exceptionally if either source cancelled
1681		*/
1682	<	public void testThenCombine_sourceCancelled() {
1682	>	public void testThenCombine_sourceCancelled() throws Throwable {
1683		for (ExecutionMode m : ExecutionMode.values())
1684		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1586	–	for (boolean createIncomplete : new boolean[] { true, false })
1685		for (boolean fFirst : new boolean[] { true, false })
1686	+	for (boolean failFirst : new boolean[] { true, false })
1687		for (Integer v1 : new Integer[] { 1, null })
1688		{
1689		final CompletableFuture<Integer> f = new CompletableFuture<>();
1690		final CompletableFuture<Integer> g = new CompletableFuture<>();
1691	<	final SubtractFunction r = new SubtractFunction(m);
1691	>	final SubtractFunction r1 = new SubtractFunction(m);
1692	>	final SubtractFunction r2 = new SubtractFunction(m);
1693	>	final SubtractFunction r3 = new SubtractFunction(m);
1694
1695	<	(fFirst ? f : g).complete(v1);
1696	<	if (!createIncomplete)
1697	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1698	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1699	<	if (createIncomplete) {
1700	<	checkIncomplete(h);
1701	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1702	<	}
1695	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1696	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1697	>	final Callable<Boolean> complete1 = failFirst ?
1698	>	() -> fst.cancel(mayInterruptIfRunning) :
1699	>	() -> fst.complete(v1);
1700	>	final Callable<Boolean> complete2 = failFirst ?
1701	>	() -> snd.complete(v1) :
1702	>	() -> snd.cancel(mayInterruptIfRunning);
1703
1704	<	checkCompletedWithWrappedCancellationException(h);
1705	<	checkCancelled(!fFirst ? f : g);
1706	<	r.assertNotInvoked();
1707	<	checkCompletedNormally(fFirst ? f : g, v1);
1704	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1705	>	assertTrue(complete1.call());
1706	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1707	>	checkIncomplete(h1);
1708	>	checkIncomplete(h2);
1709	>	assertTrue(complete2.call());
1710	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1711	>
1712	>	checkCompletedWithWrappedCancellationException(h1);
1713	>	checkCompletedWithWrappedCancellationException(h2);
1714	>	checkCompletedWithWrappedCancellationException(h3);
1715	>	r1.assertNotInvoked();
1716	>	r2.assertNotInvoked();
1717	>	r3.assertNotInvoked();
1718	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1719	>	checkCancelled(failFirst ? fst : snd);
1720		}}
1721
1722		/**
#	Line 1617 | Line 1730 | public class CompletableFutureTest exten
1730		{
1731		final CompletableFuture<Integer> f = new CompletableFuture<>();
1732		final CompletableFuture<Integer> g = new CompletableFuture<>();
1733	<	final FailingBiFunction r = new FailingBiFunction(m);
1734	<	final CompletableFuture<Integer> h = m.thenCombine(f, g, r);
1735	<
1736	<	if (fFirst) {
1737	<	f.complete(v1);
1738	<	g.complete(v2);
1739	<	} else {
1740	<	g.complete(v2);
1741	<	f.complete(v1);
1742	<	}
1733	>	final FailingBiFunction r1 = new FailingBiFunction(m);
1734	>	final FailingBiFunction r2 = new FailingBiFunction(m);
1735	>	final FailingBiFunction r3 = new FailingBiFunction(m);
1736	>
1737	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1738	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1739	>	final Integer w1 =  fFirst ? v1 : v2;
1740	>	final Integer w2 = !fFirst ? v1 : v2;
1741	>
1742	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1743	>	assertTrue(fst.complete(w1));
1744	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1745	>	assertTrue(snd.complete(w2));
1746	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1747
1748	<	checkCompletedWithWrappedCFException(h);
1748	>	checkCompletedWithWrappedCFException(h1);
1749	>	checkCompletedWithWrappedCFException(h2);
1750	>	checkCompletedWithWrappedCFException(h3);
1751	>	r1.assertInvoked();
1752	>	r2.assertInvoked();
1753	>	r3.assertInvoked();
1754		checkCompletedNormally(f, v1);
1755		checkCompletedNormally(g, v2);
1756		}}
#	Line 1639 | Line 1761 | public class CompletableFutureTest exten
1761		*/
1762		public void testThenAcceptBoth_normalCompletion() {
1763		for (ExecutionMode m : ExecutionMode.values())
1642	–	for (boolean createIncomplete : new boolean[] { true, false })
1764		for (boolean fFirst : new boolean[] { true, false })
1765		for (Integer v1 : new Integer[] { 1, null })
1766		for (Integer v2 : new Integer[] { 2, null })
1767		{
1768		final CompletableFuture<Integer> f = new CompletableFuture<>();
1769		final CompletableFuture<Integer> g = new CompletableFuture<>();
1770	<	final SubtractAction r = new SubtractAction(m);
1771	<
1772	<	if (fFirst) f.complete(v1); else g.complete(v2);
1773	<	if (!createIncomplete)
1774	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1775	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1776	<	if (createIncomplete) {
1777	<	checkIncomplete(h);
1778	<	r.assertNotInvoked();
1779	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1780	<	}
1770	>	final SubtractAction r1 = new SubtractAction(m);
1771	>	final SubtractAction r2 = new SubtractAction(m);
1772	>	final SubtractAction r3 = new SubtractAction(m);
1773	>
1774	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1775	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1776	>	final Integer w1 =  fFirst ? v1 : v2;
1777	>	final Integer w2 = !fFirst ? v1 : v2;
1778	>
1779	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1780	>	assertTrue(fst.complete(w1));
1781	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1782	>	checkIncomplete(h1);
1783	>	checkIncomplete(h2);
1784	>	r1.assertNotInvoked();
1785	>	r2.assertNotInvoked();
1786	>	assertTrue(snd.complete(w2));
1787	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1788
1789	<	checkCompletedNormally(h, null);
1790	<	r.assertValue(subtract(v1, v2));
1789	>	checkCompletedNormally(h1, null);
1790	>	checkCompletedNormally(h2, null);
1791	>	checkCompletedNormally(h3, null);
1792	>	r1.assertValue(subtract(v1, v2));
1793	>	r2.assertValue(subtract(v1, v2));
1794	>	r3.assertValue(subtract(v1, v2));
1795		checkCompletedNormally(f, v1);
1796		checkCompletedNormally(g, v2);
1797		}}
#	Line 1668 | Line 1800 | public class CompletableFutureTest exten
1800		* thenAcceptBoth result completes exceptionally after exceptional
1801		* completion of either source
1802		*/
1803	<	public void testThenAcceptBoth_exceptionalCompletion() {
1803	>	public void testThenAcceptBoth_exceptionalCompletion() throws Throwable {
1804		for (ExecutionMode m : ExecutionMode.values())
1673	–	for (boolean createIncomplete : new boolean[] { true, false })
1805		for (boolean fFirst : new boolean[] { true, false })
1806	+	for (boolean failFirst : new boolean[] { true, false })
1807		for (Integer v1 : new Integer[] { 1, null })
1808		{
1809		final CompletableFuture<Integer> f = new CompletableFuture<>();
1810		final CompletableFuture<Integer> g = new CompletableFuture<>();
1811		final CFException ex = new CFException();
1812	<	final SubtractAction r = new SubtractAction(m);
1813	<
1814	<	(fFirst ? f : g).complete(v1);
1815	<	if (!createIncomplete)
1816	<	(!fFirst ? f : g).completeExceptionally(ex);
1817	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1818	<	if (createIncomplete) {
1819	<	checkIncomplete(h);
1820	<	(!fFirst ? f : g).completeExceptionally(ex);
1821	<	}
1812	>	final SubtractAction r1 = new SubtractAction(m);
1813	>	final SubtractAction r2 = new SubtractAction(m);
1814	>	final SubtractAction r3 = new SubtractAction(m);
1815	>
1816	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1817	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1818	>	final Callable<Boolean> complete1 = failFirst ?
1819	>	() -> fst.completeExceptionally(ex) :
1820	>	() -> fst.complete(v1);
1821	>	final Callable<Boolean> complete2 = failFirst ?
1822	>	() -> snd.complete(v1) :
1823	>	() -> snd.completeExceptionally(ex);
1824	>
1825	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1826	>	assertTrue(complete1.call());
1827	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1828	>	checkIncomplete(h1);
1829	>	checkIncomplete(h2);
1830	>	assertTrue(complete2.call());
1831	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1832
1833	<	checkCompletedWithWrappedException(h, ex);
1834	<	r.assertNotInvoked();
1835	<	checkCompletedNormally(fFirst ? f : g, v1);
1836	<	checkCompletedExceptionally(!fFirst ? f : g, ex);
1833	>	checkCompletedWithWrappedException(h1, ex);
1834	>	checkCompletedWithWrappedException(h2, ex);
1835	>	checkCompletedWithWrappedException(h3, ex);
1836	>	r1.assertNotInvoked();
1837	>	r2.assertNotInvoked();
1838	>	r3.assertNotInvoked();
1839	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1840	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1841		}}
1842
1843		/**
1844		* thenAcceptBoth result completes exceptionally if either source cancelled
1845		*/
1846	<	public void testThenAcceptBoth_sourceCancelled() {
1846	>	public void testThenAcceptBoth_sourceCancelled() throws Throwable {
1847		for (ExecutionMode m : ExecutionMode.values())
1848		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1703	–	for (boolean createIncomplete : new boolean[] { true, false })
1849		for (boolean fFirst : new boolean[] { true, false })
1850	+	for (boolean failFirst : new boolean[] { true, false })
1851		for (Integer v1 : new Integer[] { 1, null })
1852		{
1853		final CompletableFuture<Integer> f = new CompletableFuture<>();
1854		final CompletableFuture<Integer> g = new CompletableFuture<>();
1855	<	final SubtractAction r = new SubtractAction(m);
1855	>	final SubtractAction r1 = new SubtractAction(m);
1856	>	final SubtractAction r2 = new SubtractAction(m);
1857	>	final SubtractAction r3 = new SubtractAction(m);
1858
1859	<	(fFirst ? f : g).complete(v1);
1860	<	if (!createIncomplete)
1861	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1862	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1863	<	if (createIncomplete) {
1864	<	checkIncomplete(h);
1865	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1866	<	}
1859	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1860	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1861	>	final Callable<Boolean> complete1 = failFirst ?
1862	>	() -> fst.cancel(mayInterruptIfRunning) :
1863	>	() -> fst.complete(v1);
1864	>	final Callable<Boolean> complete2 = failFirst ?
1865	>	() -> snd.complete(v1) :
1866	>	() -> snd.cancel(mayInterruptIfRunning);
1867
1868	<	checkCompletedWithWrappedCancellationException(h);
1869	<	checkCancelled(!fFirst ? f : g);
1870	<	r.assertNotInvoked();
1871	<	checkCompletedNormally(fFirst ? f : g, v1);
1868	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1869	>	assertTrue(complete1.call());
1870	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1871	>	checkIncomplete(h1);
1872	>	checkIncomplete(h2);
1873	>	assertTrue(complete2.call());
1874	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1875	>
1876	>	checkCompletedWithWrappedCancellationException(h1);
1877	>	checkCompletedWithWrappedCancellationException(h2);
1878	>	checkCompletedWithWrappedCancellationException(h3);
1879	>	r1.assertNotInvoked();
1880	>	r2.assertNotInvoked();
1881	>	r3.assertNotInvoked();
1882	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1883	>	checkCancelled(failFirst ? fst : snd);
1884		}}
1885
1886		/**
#	Line 1734 | Line 1894 | public class CompletableFutureTest exten
1894		{
1895		final CompletableFuture<Integer> f = new CompletableFuture<>();
1896		final CompletableFuture<Integer> g = new CompletableFuture<>();
1897	<	final FailingBiConsumer r = new FailingBiConsumer(m);
1898	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1899	<
1900	<	if (fFirst) {
1901	<	f.complete(v1);
1902	<	g.complete(v2);
1903	<	} else {
1904	<	g.complete(v2);
1905	<	f.complete(v1);
1906	<	}
1897	>	final FailingBiConsumer r1 = new FailingBiConsumer(m);
1898	>	final FailingBiConsumer r2 = new FailingBiConsumer(m);
1899	>	final FailingBiConsumer r3 = new FailingBiConsumer(m);
1900	>
1901	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1902	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1903	>	final Integer w1 =  fFirst ? v1 : v2;
1904	>	final Integer w2 = !fFirst ? v1 : v2;
1905	>
1906	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1907	>	assertTrue(fst.complete(w1));
1908	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1909	>	assertTrue(snd.complete(w2));
1910	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1911
1912	<	checkCompletedWithWrappedCFException(h);
1912	>	checkCompletedWithWrappedCFException(h1);
1913	>	checkCompletedWithWrappedCFException(h2);
1914	>	checkCompletedWithWrappedCFException(h3);
1915	>	r1.assertInvoked();
1916	>	r2.assertInvoked();
1917	>	r3.assertInvoked();
1918		checkCompletedNormally(f, v1);
1919		checkCompletedNormally(g, v2);
1920		}}
#	Line 1756 | Line 1925 | public class CompletableFutureTest exten
1925		*/
1926		public void testRunAfterBoth_normalCompletion() {
1927		for (ExecutionMode m : ExecutionMode.values())
1759	–	for (boolean createIncomplete : new boolean[] { true, false })
1928		for (boolean fFirst : new boolean[] { true, false })
1929		for (Integer v1 : new Integer[] { 1, null })
1930		for (Integer v2 : new Integer[] { 2, null })
1931		{
1932		final CompletableFuture<Integer> f = new CompletableFuture<>();
1933		final CompletableFuture<Integer> g = new CompletableFuture<>();
1934	<	final Noop r = new Noop(m);
1935	<
1936	<	if (fFirst) f.complete(v1); else g.complete(v2);
1937	<	if (!createIncomplete)
1938	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1939	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1940	<	if (createIncomplete) {
1941	<	checkIncomplete(h);
1942	<	r.assertNotInvoked();
1943	<	if (!fFirst) f.complete(v1); else g.complete(v2);
1944	<	}
1934	>	final Noop r1 = new Noop(m);
1935	>	final Noop r2 = new Noop(m);
1936	>	final Noop r3 = new Noop(m);
1937	>
1938	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1939	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1940	>	final Integer w1 =  fFirst ? v1 : v2;
1941	>	final Integer w2 = !fFirst ? v1 : v2;
1942	>
1943	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1944	>	assertTrue(fst.complete(w1));
1945	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1946	>	checkIncomplete(h1);
1947	>	checkIncomplete(h2);
1948	>	r1.assertNotInvoked();
1949	>	r2.assertNotInvoked();
1950	>	assertTrue(snd.complete(w2));
1951	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
1952
1953	<	checkCompletedNormally(h, null);
1954	<	r.assertInvoked();
1953	>	checkCompletedNormally(h1, null);
1954	>	checkCompletedNormally(h2, null);
1955	>	checkCompletedNormally(h3, null);
1956	>	r1.assertInvoked();
1957	>	r2.assertInvoked();
1958	>	r3.assertInvoked();
1959		checkCompletedNormally(f, v1);
1960		checkCompletedNormally(g, v2);
1961		}}
#	Line 1785 | Line 1964 | public class CompletableFutureTest exten
1964		* runAfterBoth result completes exceptionally after exceptional
1965		* completion of either source
1966		*/
1967	<	public void testRunAfterBoth_exceptionalCompletion() {
1967	>	public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
1968		for (ExecutionMode m : ExecutionMode.values())
1790	–	for (boolean createIncomplete : new boolean[] { true, false })
1969		for (boolean fFirst : new boolean[] { true, false })
1970	+	for (boolean failFirst : new boolean[] { true, false })
1971		for (Integer v1 : new Integer[] { 1, null })
1972		{
1973		final CompletableFuture<Integer> f = new CompletableFuture<>();
1974		final CompletableFuture<Integer> g = new CompletableFuture<>();
1975		final CFException ex = new CFException();
1976	<	final Noop r = new Noop(m);
1977	<
1978	<	(fFirst ? f : g).complete(v1);
1979	<	if (!createIncomplete)
1980	<	(!fFirst ? f : g).completeExceptionally(ex);
1981	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1982	<	if (createIncomplete) {
1983	<	checkIncomplete(h);
1984	<	(!fFirst ? f : g).completeExceptionally(ex);
1985	<	}
1976	>	final Noop r1 = new Noop(m);
1977	>	final Noop r2 = new Noop(m);
1978	>	final Noop r3 = new Noop(m);
1979	>
1980	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1981	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1982	>	final Callable<Boolean> complete1 = failFirst ?
1983	>	() -> fst.completeExceptionally(ex) :
1984	>	() -> fst.complete(v1);
1985	>	final Callable<Boolean> complete2 = failFirst ?
1986	>	() -> snd.complete(v1) :
1987	>	() -> snd.completeExceptionally(ex);
1988	>
1989	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1990	>	assertTrue(complete1.call());
1991	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1992	>	checkIncomplete(h1);
1993	>	checkIncomplete(h2);
1994	>	assertTrue(complete2.call());
1995	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
1996
1997	<	checkCompletedWithWrappedException(h, ex);
1998	<	r.assertNotInvoked();
1999	<	checkCompletedNormally(fFirst ? f : g, v1);
2000	<	checkCompletedExceptionally(!fFirst ? f : g, ex);
1997	>	checkCompletedWithWrappedException(h1, ex);
1998	>	checkCompletedWithWrappedException(h2, ex);
1999	>	checkCompletedWithWrappedException(h3, ex);
2000	>	r1.assertNotInvoked();
2001	>	r2.assertNotInvoked();
2002	>	r3.assertNotInvoked();
2003	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2004	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
2005		}}
2006
2007		/**
2008		* runAfterBoth result completes exceptionally if either source cancelled
2009		*/
2010	<	public void testRunAfterBoth_sourceCancelled() {
2010	>	public void testRunAfterBoth_sourceCancelled() throws Throwable {
2011		for (ExecutionMode m : ExecutionMode.values())
2012		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1820	–	for (boolean createIncomplete : new boolean[] { true, false })
2013		for (boolean fFirst : new boolean[] { true, false })
2014	+	for (boolean failFirst : new boolean[] { true, false })
2015		for (Integer v1 : new Integer[] { 1, null })
2016		{
2017		final CompletableFuture<Integer> f = new CompletableFuture<>();
2018		final CompletableFuture<Integer> g = new CompletableFuture<>();
2019	<	final Noop r = new Noop(m);
2019	>	final Noop r1 = new Noop(m);
2020	>	final Noop r2 = new Noop(m);
2021	>	final Noop r3 = new Noop(m);
2022
2023	<	(fFirst ? f : g).complete(v1);
2024	<	if (!createIncomplete)
2025	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
2026	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2027	<	if (createIncomplete) {
2028	<	checkIncomplete(h);
2029	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
2030	<	}
2023	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2024	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2025	>	final Callable<Boolean> complete1 = failFirst ?
2026	>	() -> fst.cancel(mayInterruptIfRunning) :
2027	>	() -> fst.complete(v1);
2028	>	final Callable<Boolean> complete2 = failFirst ?
2029	>	() -> snd.complete(v1) :
2030	>	() -> snd.cancel(mayInterruptIfRunning);
2031
2032	<	checkCompletedWithWrappedCancellationException(h);
2033	<	checkCancelled(!fFirst ? f : g);
2034	<	r.assertNotInvoked();
2035	<	checkCompletedNormally(fFirst ? f : g, v1);
2032	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2033	>	assertTrue(complete1.call());
2034	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2035	>	checkIncomplete(h1);
2036	>	checkIncomplete(h2);
2037	>	assertTrue(complete2.call());
2038	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2039	>
2040	>	checkCompletedWithWrappedCancellationException(h1);
2041	>	checkCompletedWithWrappedCancellationException(h2);
2042	>	checkCompletedWithWrappedCancellationException(h3);
2043	>	r1.assertNotInvoked();
2044	>	r2.assertNotInvoked();
2045	>	r3.assertNotInvoked();
2046	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2047	>	checkCancelled(failFirst ? fst : snd);
2048		}}
2049
2050		/**
#	Line 1853 | Line 2060 | public class CompletableFutureTest exten
2060		final CompletableFuture<Integer> g = new CompletableFuture<>();
2061		final FailingRunnable r1 = new FailingRunnable(m);
2062		final FailingRunnable r2 = new FailingRunnable(m);
2063	+	final FailingRunnable r3 = new FailingRunnable(m);
2064
2065	<	CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2066	<	if (fFirst) {
2067	<	f.complete(v1);
2068	<	g.complete(v2);
2069	<	} else {
2070	<	g.complete(v2);
2071	<	f.complete(v1);
2072	<	}
2073	<	CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2065	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2066	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2067	>	final Integer w1 =  fFirst ? v1 : v2;
2068	>	final Integer w2 = !fFirst ? v1 : v2;
2069	>
2070	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2071	>	assertTrue(fst.complete(w1));
2072	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2073	>	assertTrue(snd.complete(w2));
2074	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2075
2076		checkCompletedWithWrappedCFException(h1);
2077		checkCompletedWithWrappedCFException(h2);
2078	+	checkCompletedWithWrappedCFException(h3);
2079	+	r1.assertInvoked();
2080	+	r2.assertInvoked();
2081	+	r3.assertInvoked();
2082		checkCompletedNormally(f, v1);
2083		checkCompletedNormally(g, v2);
2084		}}
#	Line 1988 | Line 2201 | public class CompletableFutureTest exten
2201
2202		final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2203		final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2204	<	if (fFirst) {
2205	<	f.complete(v1);
1993	<	g.completeExceptionally(ex);
1994	<	} else {
1995	<	g.completeExceptionally(ex);
1996	<	f.complete(v1);
1997	<	}
2204	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2205	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2206		final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2207		final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2208
#	Line 2100 | Line 2308 | public class CompletableFutureTest exten
2308
2309		final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2310		final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2311	<	if (fFirst) {
2312	<	f.complete(v1);
2105	<	g.cancel(mayInterruptIfRunning);
2106	<	} else {
2107	<	g.cancel(mayInterruptIfRunning);
2108	<	f.complete(v1);
2109	<	}
2311	>	assertTrue(fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2312	>	assertTrue(!fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2313		final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2314		final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2315
#	Line 2308 | Line 2511 | public class CompletableFutureTest exten
2511
2512		final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2513		final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2514	<	if (fFirst) {
2515	<	f.complete(v1);
2313	<	g.completeExceptionally(ex);
2314	<	} else {
2315	<	g.completeExceptionally(ex);
2316	<	f.complete(v1);
2317	<	}
2514	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2515	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2516		final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2517		final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2518
#	Line 2517 | Line 2715 | public class CompletableFutureTest exten
2715		checkIncomplete(h1);
2716		rs[0].assertNotInvoked();
2717		rs[1].assertNotInvoked();
2718	<	f.completeExceptionally(ex);
2718	>	assertTrue(f.completeExceptionally(ex));
2719		checkCompletedWithWrappedException(h0, ex);
2720		checkCompletedWithWrappedException(h1, ex);
2721		final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
#	Line 2525 | Line 2723 | public class CompletableFutureTest exten
2723		checkCompletedWithWrappedException(h2, ex);
2724		checkCompletedWithWrappedException(h3, ex);
2725
2726	<	g.complete(v1);
2726	>	assertTrue(g.complete(v1));
2727
2728		// unspecified behavior - both source completions available
2729		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
#	Line 2568 | Line 2766 | public class CompletableFutureTest exten
2766
2767		final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2768		final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2769	<	if (fFirst) {
2770	<	f.complete(v1);
2573	<	g.completeExceptionally(ex);
2574	<	} else {
2575	<	g.completeExceptionally(ex);
2576	<	f.complete(v1);
2577	<	}
2769	>	assertTrue( fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2770	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2771		final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2772		final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2773
#	Line 2639 | Line 2832 | public class CompletableFutureTest exten
2832		checkCompletedWithWrappedCancellationException(h2);
2833		checkCompletedWithWrappedCancellationException(h3);
2834
2835	<	g.complete(v1);
2835	>	assertTrue(g.complete(v1));
2836
2837		// unspecified behavior - both source completions available
2838		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
#	Line 2683 | Line 2876 | public class CompletableFutureTest exten
2876
2877		final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2878		final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2879	<	f.complete(v1);
2879	>	assertTrue(f.complete(v1));
2880		final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2881		final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2882		checkCompletedWithWrappedCFException(h0);
#	Line 2691 | Line 2884 | public class CompletableFutureTest exten
2884		checkCompletedWithWrappedCFException(h2);
2885		checkCompletedWithWrappedCFException(h3);
2886		for (int i = 0; i < 4; i++) rs[i].assertInvoked();
2887	<	g.complete(v2);
2887	>	assertTrue(g.complete(v2));
2888		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2889		final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2890		checkCompletedWithWrappedCFException(h4);
#	Line 2712 | Line 2905 | public class CompletableFutureTest exten
2905		{
2906		final CompletableFuture<Integer> f = new CompletableFuture<>();
2907		final CompletableFutureInc r = new CompletableFutureInc(m);
2908	<	if (!createIncomplete) f.complete(v1);
2908	>	if (!createIncomplete) assertTrue(f.complete(v1));
2909		final CompletableFuture<Integer> g = m.thenCompose(f, r);
2910	<	if (createIncomplete) f.complete(v1);
2910	>	if (createIncomplete) assertTrue(f.complete(v1));
2911
2912		checkCompletedNormally(g, inc(v1));
2913		checkCompletedNormally(f, v1);
#	Line 2752 | Line 2945 | public class CompletableFutureTest exten
2945		final CompletableFuture<Integer> f = new CompletableFuture<>();
2946		final FailingCompletableFutureFunction r
2947		= new FailingCompletableFutureFunction(m);
2948	<	if (!createIncomplete) f.complete(v1);
2948	>	if (!createIncomplete) assertTrue(f.complete(v1));
2949		final CompletableFuture<Integer> g = m.thenCompose(f, r);
2950	<	if (createIncomplete) f.complete(v1);
2950	>	if (createIncomplete) assertTrue(f.complete(v1));
2951
2952		checkCompletedWithWrappedCFException(g);
2953		checkCompletedNormally(f, v1);
#	Line 2781 | Line 2974 | public class CompletableFutureTest exten
2974		checkCancelled(f);
2975		}}
2976
2977	+	/**
2978	+	* thenCompose result completes exceptionally if the result of the action does
2979	+	*/
2980	+	public void testThenCompose_actionReturnsFailingFuture() {
2981	+	for (ExecutionMode m : ExecutionMode.values())
2982	+	for (int order = 0; order < 6; order++)
2983	+	for (Integer v1 : new Integer[] { 1, null })
2984	+	{
2985	+	final CFException ex = new CFException();
2986	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
2987	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
2988	+	final CompletableFuture<Integer> h;
2989	+	// Test all permutations of orders
2990	+	switch (order) {
2991	+	case 0:
2992	+	assertTrue(f.complete(v1));
2993	+	assertTrue(g.completeExceptionally(ex));
2994	+	h = m.thenCompose(f, (x -> g));
2995	+	break;
2996	+	case 1:
2997	+	assertTrue(f.complete(v1));
2998	+	h = m.thenCompose(f, (x -> g));
2999	+	assertTrue(g.completeExceptionally(ex));
3000	+	break;
3001	+	case 2:
3002	+	assertTrue(g.completeExceptionally(ex));
3003	+	assertTrue(f.complete(v1));
3004	+	h = m.thenCompose(f, (x -> g));
3005	+	break;
3006	+	case 3:
3007	+	assertTrue(g.completeExceptionally(ex));
3008	+	h = m.thenCompose(f, (x -> g));
3009	+	assertTrue(f.complete(v1));
3010	+	break;
3011	+	case 4:
3012	+	h = m.thenCompose(f, (x -> g));
3013	+	assertTrue(f.complete(v1));
3014	+	assertTrue(g.completeExceptionally(ex));
3015	+	break;
3016	+	case 5:
3017	+	h = m.thenCompose(f, (x -> g));
3018	+	assertTrue(f.complete(v1));
3019	+	assertTrue(g.completeExceptionally(ex));
3020	+	break;
3021	+	default: throw new AssertionError();
3022	+	}
3023	+
3024	+	checkCompletedExceptionally(g, ex);
3025	+	checkCompletedWithWrappedException(h, ex);
3026	+	checkCompletedNormally(f, v1);
3027	+	}}
3028	+
3029		// other static methods
3030
3031		/**
#	Line 2797 | Line 3042 | public class CompletableFutureTest exten
3042		* when all components complete normally
3043		*/
3044		public void testAllOf_normal() throws Exception {
3045	<	for (int k = 1; k < 20; ++k) {
3045	>	for (int k = 1; k < 10; k++) {
3046		CompletableFuture<Integer>[] fs
3047		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3048	<	for (int i = 0; i < k; ++i)
3048	>	for (int i = 0; i < k; i++)
3049		fs[i] = new CompletableFuture<>();
3050		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3051	<	for (int i = 0; i < k; ++i) {
3051	>	for (int i = 0; i < k; i++) {
3052		checkIncomplete(f);
3053		checkIncomplete(CompletableFuture.allOf(fs));
3054		fs[i].complete(one);
#	Line 2814 | Line 3059 | public class CompletableFutureTest exten
3059		}
3060
3061		public void testAllOf_backwards() throws Exception {
3062	<	for (int k = 1; k < 20; ++k) {
3062	>	for (int k = 1; k < 10; k++) {
3063		CompletableFuture<Integer>[] fs
3064		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3065	<	for (int i = 0; i < k; ++i)
3065	>	for (int i = 0; i < k; i++)
3066		fs[i] = new CompletableFuture<>();
3067		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3068		for (int i = k - 1; i >= 0; i--) {
#	Line 2830 | Line 3075 | public class CompletableFutureTest exten
3075		}
3076		}
3077
3078	+	public void testAllOf_exceptional() throws Exception {
3079	+	for (int k = 1; k < 10; k++) {
3080	+	CompletableFuture<Integer>[] fs
3081	+	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3082	+	CFException ex = new CFException();
3083	+	for (int i = 0; i < k; i++)
3084	+	fs[i] = new CompletableFuture<>();
3085	+	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3086	+	for (int i = 0; i < k; i++) {
3087	+	checkIncomplete(f);
3088	+	checkIncomplete(CompletableFuture.allOf(fs));
3089	+	if (i != k / 2) {
3090	+	fs[i].complete(i);
3091	+	checkCompletedNormally(fs[i], i);
3092	+	} else {
3093	+	fs[i].completeExceptionally(ex);
3094	+	checkCompletedExceptionally(fs[i], ex);
3095	+	}
3096	+	}
3097	+	checkCompletedWithWrappedException(f, ex);
3098	+	checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3099	+	}
3100	+	}
3101	+
3102		/**
3103		* anyOf(no component futures) returns an incomplete future
3104		*/
3105		public void testAnyOf_empty() throws Exception {
3106	+	for (Integer v1 : new Integer[] { 1, null })
3107	+	{
3108		CompletableFuture<Object> f = CompletableFuture.anyOf();
3109		checkIncomplete(f);
3110	<	}
3110	>
3111	>	f.complete(v1);
3112	>	checkCompletedNormally(f, v1);
3113	>	}}
3114
3115		/**
3116		* anyOf returns a future completed normally with a value when
3117		* a component future does
3118		*/
3119		public void testAnyOf_normal() throws Exception {
3120	<	for (int k = 0; k < 10; ++k) {
3120	>	for (int k = 0; k < 10; k++) {
3121		CompletableFuture[] fs = new CompletableFuture[k];
3122	<	for (int i = 0; i < k; ++i)
3122	>	for (int i = 0; i < k; i++)
3123		fs[i] = new CompletableFuture<>();
3124		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3125		checkIncomplete(f);
3126	<	for (int i = 0; i < k; ++i) {
3127	<	fs[i].complete(one);
3128	<	checkCompletedNormally(f, one);
3129	<	checkCompletedNormally(CompletableFuture.anyOf(fs), one);
3126	>	for (int i = 0; i < k; i++) {
3127	>	fs[i].complete(i);
3128	>	checkCompletedNormally(f, 0);
3129	>	int x = (int) CompletableFuture.anyOf(fs).join();
3130	>	assertTrue(0 <= x && x <= i);
3131	>	}
3132	>	}
3133	>	}
3134	>	public void testAnyOf_normal_backwards() throws Exception {
3135	>	for (int k = 0; k < 10; k++) {
3136	>	CompletableFuture[] fs = new CompletableFuture[k];
3137	>	for (int i = 0; i < k; i++)
3138	>	fs[i] = new CompletableFuture<>();
3139	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3140	>	checkIncomplete(f);
3141	>	for (int i = k - 1; i >= 0; i--) {
3142	>	fs[i].complete(i);
3143	>	checkCompletedNormally(f, k - 1);
3144	>	int x = (int) CompletableFuture.anyOf(fs).join();
3145	>	assertTrue(i <= x && x <= k - 1);
3146		}
3147		}
3148		}
#	Line 2861 | Line 3151 | public class CompletableFutureTest exten
3151		* anyOf result completes exceptionally when any component does.
3152		*/
3153		public void testAnyOf_exceptional() throws Exception {
3154	<	for (int k = 0; k < 10; ++k) {
3154	>	for (int k = 0; k < 10; k++) {
3155	>	CompletableFuture[] fs = new CompletableFuture[k];
3156	>	CFException[] exs = new CFException[k];
3157	>	for (int i = 0; i < k; i++) {
3158	>	fs[i] = new CompletableFuture<>();
3159	>	exs[i] = new CFException();
3160	>	}
3161	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3162	>	checkIncomplete(f);
3163	>	for (int i = 0; i < k; i++) {
3164	>	fs[i].completeExceptionally(exs[i]);
3165	>	checkCompletedWithWrappedException(f, exs[0]);
3166	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3167	>	}
3168	>	}
3169	>	}
3170	>
3171	>	public void testAnyOf_exceptional_backwards() throws Exception {
3172	>	for (int k = 0; k < 10; k++) {
3173		CompletableFuture[] fs = new CompletableFuture[k];
3174	<	for (int i = 0; i < k; ++i)
3174	>	CFException[] exs = new CFException[k];
3175	>	for (int i = 0; i < k; i++) {
3176		fs[i] = new CompletableFuture<>();
3177	+	exs[i] = new CFException();
3178	+	}
3179		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3180		checkIncomplete(f);
3181	<	for (int i = 0; i < k; ++i) {
3182	<	fs[i].completeExceptionally(new CFException());
3183	<	checkCompletedWithWrappedCFException(f);
3181	>	for (int i = k - 1; i >= 0; i--) {
3182	>	fs[i].completeExceptionally(exs[i]);
3183	>	checkCompletedWithWrappedException(f, exs[k - 1]);
3184		checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3185		}
3186		}
#	Line 2882 | Line 3193 | public class CompletableFutureTest exten
3193		CompletableFuture<Integer> f = new CompletableFuture<>();
3194		CompletableFuture<Integer> g = new CompletableFuture<>();
3195		CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
2885	–	CompletableFuture<?> h;
3196		ThreadExecutor exec = new ThreadExecutor();
3197
3198		Runnable[] throwingActions = {
3199		() -> CompletableFuture.supplyAsync(null),
3200		() -> CompletableFuture.supplyAsync(null, exec),
3201	<	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.DEFAULT, 42), null),
3201	>	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3202
3203		() -> CompletableFuture.runAsync(null),
3204		() -> CompletableFuture.runAsync(null, exec),
#	Line 2979 | Line 3289 | public class CompletableFutureTest exten
3289		() -> CompletableFuture.anyOf(null, f),
3290
3291		() -> f.obtrudeException(null),
3292	+
3293	+	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3294	+	() -> CompletableFuture.delayedExecutor(1L, null, new ThreadExecutor()),
3295	+	() -> CompletableFuture.delayedExecutor(1L, null),
3296	+
3297	+	() -> f.orTimeout(1L, null),
3298	+	() -> f.completeOnTimeout(42, 1L, null),
3299	+
3300	+	() -> CompletableFuture.failedFuture(null),
3301	+	() -> CompletableFuture.failedStage(null),
3302		};
3303
3304		assertThrows(NullPointerException.class, throwingActions);
#	Line 2993 | Line 3313 | public class CompletableFutureTest exten
3313		assertSame(f, f.toCompletableFuture());
3314		}
3315
3316	+	// jdk9
3317	+
3318	+	/**
3319	+	* newIncompleteFuture returns an incomplete CompletableFuture
3320	+	*/
3321	+	public void testNewIncompleteFuture() {
3322	+	for (Integer v1 : new Integer[] { 1, null })
3323	+	{
3324	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3325	+	CompletableFuture<Integer> g = f.newIncompleteFuture();
3326	+	checkIncomplete(f);
3327	+	checkIncomplete(g);
3328	+	f.complete(v1);
3329	+	checkCompletedNormally(f, v1);
3330	+	checkIncomplete(g);
3331	+	g.complete(v1);
3332	+	checkCompletedNormally(g, v1);
3333	+	assertSame(g.getClass(), CompletableFuture.class);
3334	+	}}
3335	+
3336	+	/**
3337	+	* completedStage returns a completed CompletionStage
3338	+	*/
3339	+	public void testCompletedStage() {
3340	+	AtomicInteger x = new AtomicInteger(0);
3341	+	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3342	+	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3343	+	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3344	+	assertEquals(x.get(), 1);
3345	+	assertNull(r.get());
3346	+	}
3347	+
3348	+	/**
3349	+	* defaultExecutor by default returns the commonPool if
3350	+	* it supports more than one thread.
3351	+	*/
3352	+	public void testDefaultExecutor() {
3353	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3354	+	Executor e = f.defaultExecutor();
3355	+	Executor c = ForkJoinPool.commonPool();
3356	+	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3357	+	assertSame(e, c);
3358	+	else
3359	+	assertNotSame(e, c);
3360	+	}
3361	+
3362	+	/**
3363	+	* failedFuture returns a CompletableFuture completed
3364	+	* exceptionally with the given Exception
3365	+	*/
3366	+	public void testFailedFuture() {
3367	+	CFException ex = new CFException();
3368	+	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3369	+	checkCompletedExceptionally(f, ex);
3370	+	}
3371	+
3372	+	/**
3373	+	* failedFuture(null) throws NPE
3374	+	*/
3375	+	public void testFailedFuture_null() {
3376	+	try {
3377	+	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3378	+	shouldThrow();
3379	+	} catch (NullPointerException success) {}
3380	+	}
3381	+
3382	+	/**
3383	+	* copy returns a CompletableFuture that is completed normally,
3384	+	* with the same value, when source is.
3385	+	*/
3386	+	public void testCopy() {
3387	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3388	+	CompletableFuture<Integer> g = f.copy();
3389	+	checkIncomplete(f);
3390	+	checkIncomplete(g);
3391	+	f.complete(1);
3392	+	checkCompletedNormally(f, 1);
3393	+	checkCompletedNormally(g, 1);
3394	+	}
3395	+
3396	+	/**
3397	+	* copy returns a CompletableFuture that is completed exceptionally
3398	+	* when source is.
3399	+	*/
3400	+	public void testCopy2() {
3401	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3402	+	CompletableFuture<Integer> g = f.copy();
3403	+	checkIncomplete(f);
3404	+	checkIncomplete(g);
3405	+	CFException ex = new CFException();
3406	+	f.completeExceptionally(ex);
3407	+	checkCompletedExceptionally(f, ex);
3408	+	checkCompletedWithWrappedException(g, ex);
3409	+	}
3410	+
3411	+	/**
3412	+	* minimalCompletionStage returns a CompletableFuture that is
3413	+	* completed normally, with the same value, when source is.
3414	+	*/
3415	+	public void testMinimalCompletionStage() {
3416	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3417	+	CompletionStage<Integer> g = f.minimalCompletionStage();
3418	+	AtomicInteger x = new AtomicInteger(0);
3419	+	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3420	+	checkIncomplete(f);
3421	+	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3422	+	f.complete(1);
3423	+	checkCompletedNormally(f, 1);
3424	+	assertEquals(x.get(), 1);
3425	+	assertNull(r.get());
3426	+	}
3427	+
3428	+	/**
3429	+	* minimalCompletionStage returns a CompletableFuture that is
3430	+	* completed exceptionally when source is.
3431	+	*/
3432	+	public void testMinimalCompletionStage2() {
3433	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3434	+	CompletionStage<Integer> g = f.minimalCompletionStage();
3435	+	AtomicInteger x = new AtomicInteger(0);
3436	+	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3437	+	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3438	+	checkIncomplete(f);
3439	+	CFException ex = new CFException();
3440	+	f.completeExceptionally(ex);
3441	+	checkCompletedExceptionally(f, ex);
3442	+	assertEquals(x.get(), 0);
3443	+	assertEquals(r.get().getCause(), ex);
3444	+	}
3445	+
3446	+	/**
3447	+	* failedStage returns a CompletionStage completed
3448	+	* exceptionally with the given Exception
3449	+	*/
3450	+	public void testFailedStage() {
3451	+	CFException ex = new CFException();
3452	+	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3453	+	AtomicInteger x = new AtomicInteger(0);
3454	+	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3455	+	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3456	+	assertEquals(x.get(), 0);
3457	+	assertEquals(r.get(), ex);
3458	+	}
3459	+
3460	+	/**
3461	+	* completeAsync completes with value of given supplier
3462	+	*/
3463	+	public void testCompleteAsync() {
3464	+	for (Integer v1 : new Integer[] { 1, null })
3465	+	{
3466	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3467	+	f.completeAsync(() -> v1);
3468	+	f.join();
3469	+	checkCompletedNormally(f, v1);
3470	+	}}
3471	+
3472	+	/**
3473	+	* completeAsync completes exceptionally if given supplier throws
3474	+	*/
3475	+	public void testCompleteAsync2() {
3476	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3477	+	CFException ex = new CFException();
3478	+	f.completeAsync(() -> {if (true) throw ex; return 1;});
3479	+	try {
3480	+	f.join();
3481	+	shouldThrow();
3482	+	} catch (CompletionException success) {}
3483	+	checkCompletedWithWrappedException(f, ex);
3484	+	}
3485	+
3486	+	/**
3487	+	* completeAsync with given executor completes with value of given supplier
3488	+	*/
3489	+	public void testCompleteAsync3() {
3490	+	for (Integer v1 : new Integer[] { 1, null })
3491	+	{
3492	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3493	+	ThreadExecutor executor = new ThreadExecutor();
3494	+	f.completeAsync(() -> v1, executor);
3495	+	assertSame(v1, f.join());
3496	+	checkCompletedNormally(f, v1);
3497	+	assertEquals(1, executor.count.get());
3498	+	}}
3499	+
3500	+	/**
3501	+	* completeAsync with given executor completes exceptionally if
3502	+	* given supplier throws
3503	+	*/
3504	+	public void testCompleteAsync4() {
3505	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3506	+	CFException ex = new CFException();
3507	+	ThreadExecutor executor = new ThreadExecutor();
3508	+	f.completeAsync(() -> {if (true) throw ex; return 1;}, executor);
3509	+	try {
3510	+	f.join();
3511	+	shouldThrow();
3512	+	} catch (CompletionException success) {}
3513	+	checkCompletedWithWrappedException(f, ex);
3514	+	assertEquals(1, executor.count.get());
3515	+	}
3516	+
3517	+	/**
3518	+	* orTimeout completes with TimeoutException if not complete
3519	+	*/
3520	+	public void testOrTimeout_timesOut() {
3521	+	long timeoutMillis = timeoutMillis();
3522	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3523	+	long startTime = System.nanoTime();
3524	+	f.orTimeout(timeoutMillis, MILLISECONDS);
3525	+	checkCompletedWithTimeoutException(f);
3526	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3527	+	}
3528	+
3529	+	/**
3530	+	* orTimeout completes normally if completed before timeout
3531	+	*/
3532	+	public void testOrTimeout_completed() {
3533	+	for (Integer v1 : new Integer[] { 1, null })
3534	+	{
3535	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3536	+	CompletableFuture<Integer> g = new CompletableFuture<>();
3537	+	long startTime = System.nanoTime();
3538	+	f.complete(v1);
3539	+	f.orTimeout(LONG_DELAY_MS, MILLISECONDS);
3540	+	g.orTimeout(LONG_DELAY_MS, MILLISECONDS);
3541	+	g.complete(v1);
3542	+	checkCompletedNormally(f, v1);
3543	+	checkCompletedNormally(g, v1);
3544	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3545	+	}}
3546	+
3547	+	/**
3548	+	* completeOnTimeout completes with given value if not complete
3549	+	*/
3550	+	public void testCompleteOnTimeout_timesOut() {
3551	+	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3552	+	() -> testCompleteOnTimeout_timesOut(null));
3553	+	}
3554	+
3555	+	public void testCompleteOnTimeout_timesOut(Integer v) {
3556	+	long timeoutMillis = timeoutMillis();
3557	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3558	+	long startTime = System.nanoTime();
3559	+	f.completeOnTimeout(v, timeoutMillis, MILLISECONDS);
3560	+	assertSame(v, f.join());
3561	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3562	+	f.complete(99);         // should have no effect
3563	+	checkCompletedNormally(f, v);
3564	+	}
3565	+
3566	+	/**
3567	+	* completeOnTimeout has no effect if completed within timeout
3568	+	*/
3569	+	public void testCompleteOnTimeout_completed() {
3570	+	for (Integer v1 : new Integer[] { 1, null })
3571	+	{
3572	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3573	+	CompletableFuture<Integer> g = new CompletableFuture<>();
3574	+	long startTime = System.nanoTime();
3575	+	f.complete(v1);
3576	+	f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS);
3577	+	g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS);
3578	+	g.complete(v1);
3579	+	checkCompletedNormally(f, v1);
3580	+	checkCompletedNormally(g, v1);
3581	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3582	+	}}
3583	+
3584	+	/**
3585	+	* delayedExecutor returns an executor that delays submission
3586	+	*/
3587	+	public void testDelayedExecutor() {
3588	+	testInParallel(() -> testDelayedExecutor(null, null),
3589	+	() -> testDelayedExecutor(null, 1),
3590	+	() -> testDelayedExecutor(new ThreadExecutor(), 1),
3591	+	() -> testDelayedExecutor(new ThreadExecutor(), 1));
3592	+	}
3593	+
3594	+	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
3595	+	long timeoutMillis = timeoutMillis();
3596	+	// Use an "unreasonably long" long timeout to catch lingering threads
3597	+	long longTimeoutMillis = 1000 * 60 * 60 * 24;
3598	+	final Executor delayer, longDelayer;
3599	+	if (executor == null) {
3600	+	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
3601	+	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
3602	+	} else {
3603	+	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
3604	+	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
3605	+	}
3606	+	long startTime = System.nanoTime();
3607	+	CompletableFuture<Integer> f =
3608	+	CompletableFuture.supplyAsync(() -> v, delayer);
3609	+	CompletableFuture<Integer> g =
3610	+	CompletableFuture.supplyAsync(() -> v, longDelayer);
3611	+
3612	+	assertNull(g.getNow(null));
3613	+
3614	+	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
3615	+	long millisElapsed = millisElapsedSince(startTime);
3616	+	assertTrue(millisElapsed >= timeoutMillis);
3617	+	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
3618	+
3619	+	checkCompletedNormally(f, v);
3620	+
3621	+	checkIncomplete(g);
3622	+	assertTrue(g.cancel(true));
3623	+	}
3624	+
3625	+	//--- tests of implementation details; not part of official tck ---
3626	+
3627	+	Object resultOf(CompletableFuture<?> f) {
3628	+	try {
3629	+	java.lang.reflect.Field resultField
3630	+	= CompletableFuture.class.getDeclaredField("result");
3631	+	resultField.setAccessible(true);
3632	+	return resultField.get(f);
3633	+	} catch (Throwable t) { throw new AssertionError(t); }
3634	+	}
3635	+
3636	+	public void testExceptionPropagationReusesResultObject() {
3637	+	if (!testImplementationDetails) return;
3638	+	for (ExecutionMode m : ExecutionMode.values())
3639	+	{
3640	+	final CFException ex = new CFException();
3641	+	final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
3642	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3643	+
3644	+	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
3645	+	= new ArrayList<>();
3646	+
3647	+	funs.add((y) -> m.thenRun(y, new Noop(m)));
3648	+	funs.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
3649	+	funs.add((y) -> m.thenApply(y, new IncFunction(m)));
3650	+
3651	+	funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
3652	+	funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
3653	+	funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
3654	+
3655	+	funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
3656	+	funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3657	+	funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
3658	+
3659	+	funs.add((y) -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
3660	+
3661	+	funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
3662	+
3663	+	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
3664	+	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
3665	+
3666	+	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3667	+	fun : funs) {
3668	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3669	+	f.completeExceptionally(ex);
3670	+	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3671	+	checkCompletedWithWrappedException(src, ex);
3672	+	CompletableFuture<?> dep = fun.apply(src);
3673	+	checkCompletedWithWrappedException(dep, ex);
3674	+	assertSame(resultOf(src), resultOf(dep));
3675	+	}
3676	+
3677	+	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3678	+	fun : funs) {
3679	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3680	+	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3681	+	CompletableFuture<?> dep = fun.apply(src);
3682	+	f.completeExceptionally(ex);
3683	+	checkCompletedWithWrappedException(src, ex);
3684	+	checkCompletedWithWrappedException(dep, ex);
3685	+	assertSame(resultOf(src), resultOf(dep));
3686	+	}
3687	+
3688	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3689	+	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3690	+	fun : funs) {
3691	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3692	+	f.cancel(mayInterruptIfRunning);
3693	+	checkCancelled(f);
3694	+	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3695	+	checkCompletedWithWrappedCancellationException(src);
3696	+	CompletableFuture<?> dep = fun.apply(src);
3697	+	checkCompletedWithWrappedCancellationException(dep);
3698	+	assertSame(resultOf(src), resultOf(dep));
3699	+	}
3700	+
3701	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
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.cancel(mayInterruptIfRunning);
3708	+	checkCancelled(f);
3709	+	checkCompletedWithWrappedCancellationException(src);
3710	+	checkCompletedWithWrappedCancellationException(dep);
3711	+	assertSame(resultOf(src), resultOf(dep));
3712	+	}
3713	+	}}
3714	+
3715	+	/**
3716	+	* Minimal completion stages throw UOE for all non-CompletionStage methods
3717	+	*/
3718	+	public void testMinimalCompletionStage_minimality() {
3719	+	if (!testImplementationDetails) return;
3720	+	Function<Method, String> toSignature =
3721	+	(method) -> method.getName() + Arrays.toString(method.getParameterTypes());
3722	+	Predicate<Method> isNotStatic =
3723	+	(method) -> (method.getModifiers() & Modifier.STATIC) == 0;
3724	+	List<Method> minimalMethods =
3725	+	Stream.of(Object.class, CompletionStage.class)
3726	+	.flatMap((klazz) -> Stream.of(klazz.getMethods()))
3727	+	.filter(isNotStatic)
3728	+	.collect(Collectors.toList());
3729	+	// Methods from CompletableFuture permitted NOT to throw UOE
3730	+	String[] signatureWhitelist = {
3731	+	"newIncompleteFuture[]",
3732	+	"defaultExecutor[]",
3733	+	"minimalCompletionStage[]",
3734	+	"copy[]",
3735	+	};
3736	+	Set<String> permittedMethodSignatures =
3737	+	Stream.concat(minimalMethods.stream().map(toSignature),
3738	+	Stream.of(signatureWhitelist))
3739	+	.collect(Collectors.toSet());
3740	+	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
3741	+	.filter(isNotStatic)
3742	+	.filter((method) -> !permittedMethodSignatures.contains(toSignature.apply(method)))
3743	+	.collect(Collectors.toList());
3744	+
3745	+	CompletionStage<Integer> minimalStage =
3746	+	new CompletableFuture<Integer>().minimalCompletionStage();
3747	+
3748	+	List<Method> bugs = new ArrayList<>();
3749	+	for (Method method : allMethods) {
3750	+	Class<?>[] parameterTypes = method.getParameterTypes();
3751	+	Object[] args = new Object[parameterTypes.length];
3752	+	// Manufacture boxed primitives for primitive params
3753	+	for (int i = 0; i < args.length; i++) {
3754	+	Class<?> type = parameterTypes[i];
3755	+	if (parameterTypes[i] == boolean.class)
3756	+	args[i] = false;
3757	+	else if (parameterTypes[i] == int.class)
3758	+	args[i] = 0;
3759	+	else if (parameterTypes[i] == long.class)
3760	+	args[i] = 0L;
3761	+	}
3762	+	try {
3763	+	method.invoke(minimalStage, args);
3764	+	bugs.add(method);
3765	+	}
3766	+	catch (java.lang.reflect.InvocationTargetException expected) {
3767	+	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
3768	+	bugs.add(method);
3769	+	// expected.getCause().printStackTrace();
3770	+	}
3771	+	}
3772	+	catch (ReflectiveOperationException bad) { throw new Error(bad); }
3773	+	}
3774	+	if (!bugs.isEmpty())
3775	+	throw new Error("Methods did not throw UOE: " + bugs.toString());
3776	+	}
3777	+
3778	+	static class Monad {
3779	+	static class ZeroException extends RuntimeException {
3780	+	public ZeroException() { super("monadic zero"); }
3781	+	}
3782	+	// "return", "unit"
3783	+	static <T> CompletableFuture<T> unit(T value) {
3784	+	return completedFuture(value);
3785	+	}
3786	+	// monadic zero ?
3787	+	static <T> CompletableFuture<T> zero() {
3788	+	return failedFuture(new ZeroException());
3789	+	}
3790	+	// >=>
3791	+	static <T,U,V> Function<T, CompletableFuture<V>> compose
3792	+	(Function<T, CompletableFuture<U>> f,
3793	+	Function<U, CompletableFuture<V>> g) {
3794	+	return (x) -> f.apply(x).thenCompose(g);
3795	+	}
3796	+
3797	+	static void assertZero(CompletableFuture<?> f) {
3798	+	try {
3799	+	f.getNow(null);
3800	+	throw new AssertionFailedError("should throw");
3801	+	} catch (CompletionException success) {
3802	+	assertTrue(success.getCause() instanceof ZeroException);
3803	+	}
3804	+	}
3805	+
3806	+	static <T> void assertFutureEquals(CompletableFuture<T> f,
3807	+	CompletableFuture<T> g) {
3808	+	T fval = null, gval = null;
3809	+	Throwable fex = null, gex = null;
3810	+
3811	+	try { fval = f.get(); }
3812	+	catch (ExecutionException ex) { fex = ex.getCause(); }
3813	+	catch (Throwable ex) { fex = ex; }
3814	+
3815	+	try { gval = g.get(); }
3816	+	catch (ExecutionException ex) { gex = ex.getCause(); }
3817	+	catch (Throwable ex) { gex = ex; }
3818	+
3819	+	if (fex != null || gex != null)
3820	+	assertSame(fex.getClass(), gex.getClass());
3821	+	else
3822	+	assertEquals(fval, gval);
3823	+	}
3824	+
3825	+	static class PlusFuture<T> extends CompletableFuture<T> {
3826	+	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
3827	+	}
3828	+
3829	+	// Monadic "plus"
3830	+	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
3831	+	CompletableFuture<? extends T> g) {
3832	+	PlusFuture<T> plus = new PlusFuture<T>();
3833	+	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
3834	+	if (ex == null) {
3835	+	if (plus.complete(result))
3836	+	if (plus.firstFailure.get() != null)
3837	+	plus.firstFailure.set(null);
3838	+	}
3839	+	else if (plus.firstFailure.compareAndSet(null, ex)) {
3840	+	if (plus.isDone())
3841	+	plus.firstFailure.set(null);
3842	+	}
3843	+	else {
3844	+	// first failure has precedence
3845	+	Throwable first = plus.firstFailure.getAndSet(null);
3846	+
3847	+	// may fail with "Self-suppression not permitted"
3848	+	try { first.addSuppressed(ex); }
3849	+	catch (Exception ignored) {}
3850	+
3851	+	plus.completeExceptionally(first);
3852	+	}
3853	+	};
3854	+	f.whenComplete(action);
3855	+	g.whenComplete(action);
3856	+	return plus;
3857	+	}
3858	+	}
3859	+
3860	+	/**
3861	+	* CompletableFuture is an additive monad - sort of.
3862	+	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
3863	+	*/
3864	+	public void testAdditiveMonad() throws Throwable {
3865	+	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
3866	+	CompletableFuture<Long> zero = Monad.zero();
3867	+
3868	+	// Some mutually non-commutative functions
3869	+	Function<Long, CompletableFuture<Long>> triple
3870	+	= (x) -> Monad.unit(3 * x);
3871	+	Function<Long, CompletableFuture<Long>> inc
3872	+	= (x) -> Monad.unit(x + 1);
3873	+
3874	+	// unit is a right identity: m >>= unit === m
3875	+	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
3876	+	inc.apply(5L));
3877	+	// unit is a left identity: (unit x) >>= f === f x
3878	+	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
3879	+	inc.apply(5L));
3880	+
3881	+	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
3882	+	Monad.assertFutureEquals(
3883	+	unit.apply(5L).thenCompose(inc).thenCompose(triple),
3884	+	unit.apply(5L).thenCompose((x) -> inc.apply(x).thenCompose(triple)));
3885	+
3886	+	// The case for CompletableFuture as an additive monad is weaker...
3887	+
3888	+	// zero is a monadic zero
3889	+	Monad.assertZero(zero);
3890	+
3891	+	// left zero: zero >>= f === zero
3892	+	Monad.assertZero(zero.thenCompose(inc));
3893	+	// right zero: f >>= (\x -> zero) === zero
3894	+	Monad.assertZero(inc.apply(5L).thenCompose((x) -> zero));
3895	+
3896	+	// f plus zero === f
3897	+	Monad.assertFutureEquals(Monad.unit(5L),
3898	+	Monad.plus(Monad.unit(5L), zero));
3899	+	// zero plus f === f
3900	+	Monad.assertFutureEquals(Monad.unit(5L),
3901	+	Monad.plus(zero, Monad.unit(5L)));
3902	+	// zero plus zero === zero
3903	+	Monad.assertZero(Monad.plus(zero, zero));
3904	+	{
3905	+	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
3906	+	Monad.unit(8L));
3907	+	// non-determinism
3908	+	assertTrue(f.get() == 5L || f.get() == 8L);
3909	+	}
3910	+
3911	+	CompletableFuture<Long> godot = new CompletableFuture<>();
3912	+	// f plus godot === f (doesn't wait for godot)
3913	+	Monad.assertFutureEquals(Monad.unit(5L),
3914	+	Monad.plus(Monad.unit(5L), godot));
3915	+	// godot plus f === f (doesn't wait for godot)
3916	+	Monad.assertFutureEquals(Monad.unit(5L),
3917	+	Monad.plus(godot, Monad.unit(5L)));
3918	+	}
3919	+
3920	+	//     static <U> U join(CompletionStage<U> stage) {
3921	+	//         CompletableFuture<U> f = new CompletableFuture<>();
3922	+	//         stage.whenComplete((v, ex) -> {
3923	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
3924	+	//         });
3925	+	//         return f.join();
3926	+	//     }
3927	+
3928	+	//     static <U> boolean isDone(CompletionStage<U> stage) {
3929	+	//         CompletableFuture<U> f = new CompletableFuture<>();
3930	+	//         stage.whenComplete((v, ex) -> {
3931	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
3932	+	//         });
3933	+	//         return f.isDone();
3934	+	//     }
3935	+
3936	+	//     static <U> U join2(CompletionStage<U> stage) {
3937	+	//         return stage.toCompletableFuture().copy().join();
3938	+	//     }
3939	+
3940	+	//     static <U> boolean isDone2(CompletionStage<U> stage) {
3941	+	//         return stage.toCompletableFuture().copy().isDone();
3942	+	//     }
3943	+
3944		}

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