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root/jsr166/jsr166/src/test/tck/CompletableFutureTest.java

Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.79 by jsr166, Mon Jun 16 17:08:15 2014 UTC vs.
Revision 1.133 by jsr166, Sun Nov 15 19:39:25 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 257 | Line 244 | public class CompletableFutureTest exten
244		{
245		CompletableFuture<Integer> f = new CompletableFuture<>();
246		checkIncomplete(f);
247	<	assertTrue(f.cancel(true));
248	<	assertTrue(f.cancel(true));
247	>	assertTrue(f.cancel(mayInterruptIfRunning));
248	>	assertTrue(f.cancel(mayInterruptIfRunning));
249	>	assertTrue(f.cancel(!mayInterruptIfRunning));
250		checkCancelled(f);
251		}}
252
#	Line 530 | Line 518 | public class CompletableFutureTest exten
518		}
519		}
520
533	–
521		class CompletableFutureInc extends CheckedIntegerAction
522		implements Function<Integer, CompletableFuture<Integer>>
523		{
#	Line 569 | 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 650 | 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 850 | Line 840 | public class CompletableFutureTest exten
840		if (!createIncomplete) assertTrue(f.complete(v1));
841		final CompletableFuture<Integer> g = f.exceptionally
842		((Throwable t) -> {
853	–	// 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) assertTrue(f.complete(v1));
848
#	Line 875 | 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 888 | Line 878 | public class CompletableFutureTest exten
878
879		public void testExceptionally_exceptionalCompletionActionFailed() {
880		for (boolean createIncomplete : new boolean[] { true, false })
891	–	for (Integer v1 : new Integer[] { 1, null })
881		{
882		final AtomicInteger a = new AtomicInteger(0);
883		final CFException ex1 = new CFException();
#	Line 897 | Line 886 | public class CompletableFutureTest exten
886		if (!createIncomplete) f.completeExceptionally(ex1);
887		final CompletableFuture<Integer> g = f.exceptionally
888		((Throwable t) -> {
889	<	ExecutionMode.DEFAULT.checkExecutionMode();
889	>	ExecutionMode.SYNC.checkExecutionMode();
890		threadAssertSame(t, ex1);
891		a.getAndIncrement();
892		throw ex2;
#	Line 912 | Line 901 | public class CompletableFutureTest exten
901		* whenComplete action executes on normal completion, propagating
902		* source result.
903		*/
904	<	public void testWhenComplete_normalCompletion1() {
904	>	public void testWhenComplete_normalCompletion() {
905		for (ExecutionMode m : ExecutionMode.values())
906		for (boolean createIncomplete : new boolean[] { true, false })
907		for (Integer v1 : new Integer[] { 1, null })
#	Line 942 | Line 931 | public class CompletableFutureTest exten
931		public void testWhenComplete_exceptionalCompletion() {
932		for (ExecutionMode m : ExecutionMode.values())
933		for (boolean createIncomplete : new boolean[] { true, false })
945	–	for (Integer v1 : new Integer[] { 1, null })
934		{
935		final AtomicInteger a = new AtomicInteger(0);
936		final CFException ex = new CFException();
#	Line 994 | Line 982 | public class CompletableFutureTest exten
982		* If a whenComplete action throws an exception when triggered by
983		* a normal completion, it completes exceptionally
984		*/
985	<	public void testWhenComplete_actionFailed() {
985	>	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
986		for (boolean createIncomplete : new boolean[] { true, false })
987		for (ExecutionMode m : ExecutionMode.values())
988		for (Integer v1 : new Integer[] { 1, null })
#	Line 1027 | Line 1015 | public class CompletableFutureTest exten
1015		public void testWhenComplete_actionFailedSourceFailed() {
1016		for (boolean createIncomplete : new boolean[] { true, false })
1017		for (ExecutionMode m : ExecutionMode.values())
1030	–	for (Integer v1 : new Integer[] { 1, null })
1018		{
1019		final AtomicInteger a = new AtomicInteger(0);
1020		final CFException ex1 = new CFException();
#	Line 1165 | Line 1152 | public class CompletableFutureTest exten
1152		assertEquals(1, a.get());
1153		}}
1154
1155	+	/**
1156	+	* If a "handle action" throws an exception when triggered by
1157	+	* a normal completion, it completes exceptionally
1158	+	*/
1159		public void testHandle_sourceCompletedNormallyActionFailed() {
1160		for (ExecutionMode m : ExecutionMode.values())
1161		for (boolean createIncomplete : new boolean[] { true, false })
#	Line 1264 | Line 1255 | public class CompletableFutureTest exten
1255		*/
1256		public void testThenRun_normalCompletion() {
1257		for (ExecutionMode m : ExecutionMode.values())
1267	–	for (boolean createIncomplete : new boolean[] { true, false })
1258		for (Integer v1 : new Integer[] { 1, null })
1259		{
1260		final CompletableFuture<Integer> f = new CompletableFuture<>();
1261	<	final Noop r = new Noop(m);
1262	<	if (!createIncomplete) assertTrue(f.complete(v1));
1273	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1274	<	if (createIncomplete) {
1275	<	checkIncomplete(g);
1276	<	assertTrue(f.complete(v1));
1277	<	}
1261	>	final Noop[] rs = new Noop[6];
1262	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1263
1264	<	checkCompletedNormally(g, null);
1264	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1265	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1266	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1267	>	checkIncomplete(h0);
1268	>	checkIncomplete(h1);
1269	>	checkIncomplete(h2);
1270	>	assertTrue(f.complete(v1));
1271	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1272	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1273	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1274	>
1275	>	checkCompletedNormally(h0, null);
1276	>	checkCompletedNormally(h1, null);
1277	>	checkCompletedNormally(h2, null);
1278	>	checkCompletedNormally(h3, null);
1279	>	checkCompletedNormally(h4, null);
1280	>	checkCompletedNormally(h5, null);
1281		checkCompletedNormally(f, v1);
1282	<	r.assertInvoked();
1282	>	for (Noop r : rs) r.assertInvoked();
1283		}}
1284
1285		/**
#	Line 1287 | Line 1288 | public class CompletableFutureTest exten
1288		*/
1289		public void testThenRun_exceptionalCompletion() {
1290		for (ExecutionMode m : ExecutionMode.values())
1290	–	for (boolean createIncomplete : new boolean[] { true, false })
1291		{
1292		final CFException ex = new CFException();
1293		final CompletableFuture<Integer> f = new CompletableFuture<>();
1294	<	final Noop r = new Noop(m);
1295	<	if (!createIncomplete) f.completeExceptionally(ex);
1296	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1297	<	if (createIncomplete) {
1298	<	checkIncomplete(g);
1299	<	f.completeExceptionally(ex);
1300	<	}
1294	>	final Noop[] rs = new Noop[6];
1295	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1296
1297	<	checkCompletedWithWrappedException(g, ex);
1297	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1298	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1299	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1300	>	checkIncomplete(h0);
1301	>	checkIncomplete(h1);
1302	>	checkIncomplete(h2);
1303	>	assertTrue(f.completeExceptionally(ex));
1304	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1305	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1306	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1307	>
1308	>	checkCompletedWithWrappedException(h0, ex);
1309	>	checkCompletedWithWrappedException(h1, ex);
1310	>	checkCompletedWithWrappedException(h2, ex);
1311	>	checkCompletedWithWrappedException(h3, ex);
1312	>	checkCompletedWithWrappedException(h4, ex);
1313	>	checkCompletedWithWrappedException(h5, ex);
1314		checkCompletedExceptionally(f, ex);
1315	<	r.assertNotInvoked();
1315	>	for (Noop r : rs) r.assertNotInvoked();
1316		}}
1317
1318		/**
#	Line 1309 | Line 1320 | public class CompletableFutureTest exten
1320		*/
1321		public void testThenRun_sourceCancelled() {
1322		for (ExecutionMode m : ExecutionMode.values())
1312	–	for (boolean createIncomplete : new boolean[] { true, false })
1323		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1324		{
1325		final CompletableFuture<Integer> f = new CompletableFuture<>();
1326	<	final Noop r = new Noop(m);
1327	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1318	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1319	<	if (createIncomplete) {
1320	<	checkIncomplete(g);
1321	<	assertTrue(f.cancel(mayInterruptIfRunning));
1322	<	}
1326	>	final Noop[] rs = new Noop[6];
1327	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1328
1329	<	checkCompletedWithWrappedCancellationException(g);
1329	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1330	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1331	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1332	>	checkIncomplete(h0);
1333	>	checkIncomplete(h1);
1334	>	checkIncomplete(h2);
1335	>	assertTrue(f.cancel(mayInterruptIfRunning));
1336	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1337	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1338	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1339	>
1340	>	checkCompletedWithWrappedCancellationException(h0);
1341	>	checkCompletedWithWrappedCancellationException(h1);
1342	>	checkCompletedWithWrappedCancellationException(h2);
1343	>	checkCompletedWithWrappedCancellationException(h3);
1344	>	checkCompletedWithWrappedCancellationException(h4);
1345	>	checkCompletedWithWrappedCancellationException(h5);
1346		checkCancelled(f);
1347	<	r.assertNotInvoked();
1347	>	for (Noop r : rs) r.assertNotInvoked();
1348		}}
1349
1350		/**
#	Line 1331 | Line 1352 | public class CompletableFutureTest exten
1352		*/
1353		public void testThenRun_actionFailed() {
1354		for (ExecutionMode m : ExecutionMode.values())
1334	–	for (boolean createIncomplete : new boolean[] { true, false })
1355		for (Integer v1 : new Integer[] { 1, null })
1356		{
1357		final CompletableFuture<Integer> f = new CompletableFuture<>();
1358	<	final FailingRunnable r = new FailingRunnable(m);
1359	<	if (!createIncomplete) assertTrue(f.complete(v1));
1340	<	final CompletableFuture<Void> g = m.thenRun(f, r);
1341	<	if (createIncomplete) {
1342	<	checkIncomplete(g);
1343	<	assertTrue(f.complete(v1));
1344	<	}
1358	>	final FailingRunnable[] rs = new FailingRunnable[6];
1359	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1360
1361	<	checkCompletedWithWrappedCFException(g);
1361	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1362	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1363	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1364	>	assertTrue(f.complete(v1));
1365	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1366	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1367	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1368	>
1369	>	checkCompletedWithWrappedCFException(h0);
1370	>	checkCompletedWithWrappedCFException(h1);
1371	>	checkCompletedWithWrappedCFException(h2);
1372	>	checkCompletedWithWrappedCFException(h3);
1373	>	checkCompletedWithWrappedCFException(h4);
1374	>	checkCompletedWithWrappedCFException(h5);
1375		checkCompletedNormally(f, v1);
1376		}}
1377
#	Line 1352 | Line 1380 | public class CompletableFutureTest exten
1380		*/
1381		public void testThenApply_normalCompletion() {
1382		for (ExecutionMode m : ExecutionMode.values())
1355	–	for (boolean createIncomplete : new boolean[] { true, false })
1383		for (Integer v1 : new Integer[] { 1, null })
1384		{
1385		final CompletableFuture<Integer> f = new CompletableFuture<>();
1386	<	final IncFunction r = new IncFunction(m);
1387	<	if (!createIncomplete) assertTrue(f.complete(v1));
1361	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1362	<	if (createIncomplete) {
1363	<	checkIncomplete(g);
1364	<	assertTrue(f.complete(v1));
1365	<	}
1386	>	final IncFunction[] rs = new IncFunction[4];
1387	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1388
1389	<	checkCompletedNormally(g, inc(v1));
1389	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1390	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1391	>	checkIncomplete(h0);
1392	>	checkIncomplete(h1);
1393	>	assertTrue(f.complete(v1));
1394	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1395	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1396	>
1397	>	checkCompletedNormally(h0, inc(v1));
1398	>	checkCompletedNormally(h1, inc(v1));
1399	>	checkCompletedNormally(h2, inc(v1));
1400	>	checkCompletedNormally(h3, inc(v1));
1401		checkCompletedNormally(f, v1);
1402	<	r.assertValue(inc(v1));
1402	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1403		}}
1404
1405		/**
#	Line 1375 | Line 1408 | public class CompletableFutureTest exten
1408		*/
1409		public void testThenApply_exceptionalCompletion() {
1410		for (ExecutionMode m : ExecutionMode.values())
1378	–	for (boolean createIncomplete : new boolean[] { true, false })
1411		{
1412		final CFException ex = new CFException();
1413		final CompletableFuture<Integer> f = new CompletableFuture<>();
1414	<	final IncFunction r = new IncFunction(m);
1415	<	if (!createIncomplete) f.completeExceptionally(ex);
1384	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1385	<	if (createIncomplete) {
1386	<	checkIncomplete(g);
1387	<	f.completeExceptionally(ex);
1388	<	}
1414	>	final IncFunction[] rs = new IncFunction[4];
1415	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1416
1417	<	checkCompletedWithWrappedException(g, ex);
1417	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1418	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1419	>	assertTrue(f.completeExceptionally(ex));
1420	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1421	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1422	>
1423	>	checkCompletedWithWrappedException(h0, ex);
1424	>	checkCompletedWithWrappedException(h1, ex);
1425	>	checkCompletedWithWrappedException(h2, ex);
1426	>	checkCompletedWithWrappedException(h3, ex);
1427		checkCompletedExceptionally(f, ex);
1428	<	r.assertNotInvoked();
1428	>	for (IncFunction r : rs) r.assertNotInvoked();
1429		}}
1430
1431		/**
#	Line 1397 | Line 1433 | public class CompletableFutureTest exten
1433		*/
1434		public void testThenApply_sourceCancelled() {
1435		for (ExecutionMode m : ExecutionMode.values())
1400	–	for (boolean createIncomplete : new boolean[] { true, false })
1436		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1437		{
1438		final CompletableFuture<Integer> f = new CompletableFuture<>();
1439	<	final IncFunction r = new IncFunction(m);
1440	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1406	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1407	<	if (createIncomplete) {
1408	<	checkIncomplete(g);
1409	<	assertTrue(f.cancel(mayInterruptIfRunning));
1410	<	}
1439	>	final IncFunction[] rs = new IncFunction[4];
1440	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1441
1442	<	checkCompletedWithWrappedCancellationException(g);
1442	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1443	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1444	>	assertTrue(f.cancel(mayInterruptIfRunning));
1445	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1446	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1447	>
1448	>	checkCompletedWithWrappedCancellationException(h0);
1449	>	checkCompletedWithWrappedCancellationException(h1);
1450	>	checkCompletedWithWrappedCancellationException(h2);
1451	>	checkCompletedWithWrappedCancellationException(h3);
1452		checkCancelled(f);
1453	<	r.assertNotInvoked();
1453	>	for (IncFunction r : rs) r.assertNotInvoked();
1454		}}
1455
1456		/**
#	Line 1419 | Line 1458 | public class CompletableFutureTest exten
1458		*/
1459		public void testThenApply_actionFailed() {
1460		for (ExecutionMode m : ExecutionMode.values())
1422	–	for (boolean createIncomplete : new boolean[] { true, false })
1461		for (Integer v1 : new Integer[] { 1, null })
1462		{
1463		final CompletableFuture<Integer> f = new CompletableFuture<>();
1464	<	final FailingFunction r = new FailingFunction(m);
1465	<	if (!createIncomplete) assertTrue(f.complete(v1));
1428	<	final CompletableFuture<Integer> g = m.thenApply(f, r);
1429	<	if (createIncomplete) {
1430	<	checkIncomplete(g);
1431	<	assertTrue(f.complete(v1));
1432	<	}
1464	>	final FailingFunction[] rs = new FailingFunction[4];
1465	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1466
1467	<	checkCompletedWithWrappedCFException(g);
1467	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1468	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1469	>	assertTrue(f.complete(v1));
1470	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1471	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1472	>
1473	>	checkCompletedWithWrappedCFException(h0);
1474	>	checkCompletedWithWrappedCFException(h1);
1475	>	checkCompletedWithWrappedCFException(h2);
1476	>	checkCompletedWithWrappedCFException(h3);
1477		checkCompletedNormally(f, v1);
1478		}}
1479
#	Line 1440 | Line 1482 | public class CompletableFutureTest exten
1482		*/
1483		public void testThenAccept_normalCompletion() {
1484		for (ExecutionMode m : ExecutionMode.values())
1443	–	for (boolean createIncomplete : new boolean[] { true, false })
1485		for (Integer v1 : new Integer[] { 1, null })
1486		{
1487		final CompletableFuture<Integer> f = new CompletableFuture<>();
1488	<	final NoopConsumer r = new NoopConsumer(m);
1489	<	if (!createIncomplete) assertTrue(f.complete(v1));
1449	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1450	<	if (createIncomplete) {
1451	<	checkIncomplete(g);
1452	<	assertTrue(f.complete(v1));
1453	<	}
1488	>	final NoopConsumer[] rs = new NoopConsumer[4];
1489	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1490
1491	<	checkCompletedNormally(g, null);
1492	<	r.assertValue(v1);
1491	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1492	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1493	>	checkIncomplete(h0);
1494	>	checkIncomplete(h1);
1495	>	assertTrue(f.complete(v1));
1496	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1497	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1498	>
1499	>	checkCompletedNormally(h0, null);
1500	>	checkCompletedNormally(h1, null);
1501	>	checkCompletedNormally(h2, null);
1502	>	checkCompletedNormally(h3, null);
1503		checkCompletedNormally(f, v1);
1504	+	for (NoopConsumer r : rs) r.assertValue(v1);
1505		}}
1506
1507		/**
#	Line 1463 | Line 1510 | public class CompletableFutureTest exten
1510		*/
1511		public void testThenAccept_exceptionalCompletion() {
1512		for (ExecutionMode m : ExecutionMode.values())
1466	–	for (boolean createIncomplete : new boolean[] { true, false })
1513		{
1514		final CFException ex = new CFException();
1515		final CompletableFuture<Integer> f = new CompletableFuture<>();
1516	<	final NoopConsumer r = new NoopConsumer(m);
1517	<	if (!createIncomplete) f.completeExceptionally(ex);
1472	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1473	<	if (createIncomplete) {
1474	<	checkIncomplete(g);
1475	<	f.completeExceptionally(ex);
1476	<	}
1516	>	final NoopConsumer[] rs = new NoopConsumer[4];
1517	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1518
1519	<	checkCompletedWithWrappedException(g, ex);
1519	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1520	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1521	>	assertTrue(f.completeExceptionally(ex));
1522	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1523	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1524	>
1525	>	checkCompletedWithWrappedException(h0, ex);
1526	>	checkCompletedWithWrappedException(h1, ex);
1527	>	checkCompletedWithWrappedException(h2, ex);
1528	>	checkCompletedWithWrappedException(h3, ex);
1529		checkCompletedExceptionally(f, ex);
1530	<	r.assertNotInvoked();
1530	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1531		}}
1532
1533		/**
#	Line 1485 | Line 1535 | public class CompletableFutureTest exten
1535		*/
1536		public void testThenAccept_sourceCancelled() {
1537		for (ExecutionMode m : ExecutionMode.values())
1488	–	for (boolean createIncomplete : new boolean[] { true, false })
1538		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1539		{
1540		final CompletableFuture<Integer> f = new CompletableFuture<>();
1541	<	final NoopConsumer r = new NoopConsumer(m);
1542	<	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1494	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1495	<	if (createIncomplete) {
1496	<	checkIncomplete(g);
1497	<	assertTrue(f.cancel(mayInterruptIfRunning));
1498	<	}
1541	>	final NoopConsumer[] rs = new NoopConsumer[4];
1542	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1543
1544	<	checkCompletedWithWrappedCancellationException(g);
1544	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1545	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1546	>	assertTrue(f.cancel(mayInterruptIfRunning));
1547	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1548	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1549	>
1550	>	checkCompletedWithWrappedCancellationException(h0);
1551	>	checkCompletedWithWrappedCancellationException(h1);
1552	>	checkCompletedWithWrappedCancellationException(h2);
1553	>	checkCompletedWithWrappedCancellationException(h3);
1554		checkCancelled(f);
1555	<	r.assertNotInvoked();
1555	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1556		}}
1557
1558		/**
#	Line 1507 | Line 1560 | public class CompletableFutureTest exten
1560		*/
1561		public void testThenAccept_actionFailed() {
1562		for (ExecutionMode m : ExecutionMode.values())
1510	–	for (boolean createIncomplete : new boolean[] { true, false })
1563		for (Integer v1 : new Integer[] { 1, null })
1564		{
1565		final CompletableFuture<Integer> f = new CompletableFuture<>();
1566	<	final FailingConsumer r = new FailingConsumer(m);
1567	<	if (!createIncomplete) f.complete(v1);
1516	<	final CompletableFuture<Void> g = m.thenAccept(f, r);
1517	<	if (createIncomplete) {
1518	<	checkIncomplete(g);
1519	<	f.complete(v1);
1520	<	}
1566	>	final FailingConsumer[] rs = new FailingConsumer[4];
1567	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1568
1569	<	checkCompletedWithWrappedCFException(g);
1569	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1570	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1571	>	assertTrue(f.complete(v1));
1572	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1573	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1574	>
1575	>	checkCompletedWithWrappedCFException(h0);
1576	>	checkCompletedWithWrappedCFException(h1);
1577	>	checkCompletedWithWrappedCFException(h2);
1578	>	checkCompletedWithWrappedCFException(h3);
1579		checkCompletedNormally(f, v1);
1580		}}
1581
#	Line 1535 | Line 1591 | public class CompletableFutureTest exten
1591		{
1592		final CompletableFuture<Integer> f = new CompletableFuture<>();
1593		final CompletableFuture<Integer> g = new CompletableFuture<>();
1594	<	final SubtractFunction r1 = new SubtractFunction(m);
1595	<	final SubtractFunction r2 = new SubtractFunction(m);
1540	<	final SubtractFunction r3 = new SubtractFunction(m);
1594	>	final SubtractFunction[] rs = new SubtractFunction[6];
1595	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1596
1597		final CompletableFuture<Integer> fst =  fFirst ? f : g;
1598		final CompletableFuture<Integer> snd = !fFirst ? f : g;
1599		final Integer w1 =  fFirst ? v1 : v2;
1600		final Integer w2 = !fFirst ? v1 : v2;
1601
1602	<	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1602	>	final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1603	>	final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1604		assertTrue(fst.complete(w1));
1605	<	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1606	<	checkIncomplete(h1);
1607	<	checkIncomplete(h2);
1608	<	r1.assertNotInvoked();
1609	<	r2.assertNotInvoked();
1605	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1606	>	final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1607	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1608	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1609	>	checkCompletedNormally(h1, subtract(w1, w1));
1610	>	checkCompletedNormally(h3, subtract(w1, w1));
1611	>	rs[1].assertValue(subtract(w1, w1));
1612	>	rs[3].assertValue(subtract(w1, w1));
1613		assertTrue(snd.complete(w2));
1614	<	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1614	>	final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1615
1616	<	checkCompletedNormally(h1, subtract(v1, v2));
1616	>	checkCompletedNormally(h0, subtract(v1, v2));
1617		checkCompletedNormally(h2, subtract(v1, v2));
1618	<	checkCompletedNormally(h3, subtract(v1, v2));
1619	<	r1.assertValue(subtract(v1, v2));
1620	<	r2.assertValue(subtract(v1, v2));
1621	<	r3.assertValue(subtract(v1, v2));
1618	>	checkCompletedNormally(h4, subtract(v1, v2));
1619	>	rs[0].assertValue(subtract(v1, v2));
1620	>	rs[2].assertValue(subtract(v1, v2));
1621	>	rs[4].assertValue(subtract(v1, v2));
1622	>
1623		checkCompletedNormally(f, v1);
1624		checkCompletedNormally(g, v2);
1625		}}
#	Line 1680 | Line 1740 | public class CompletableFutureTest exten
1740		checkCompletedWithWrappedCFException(h1);
1741		checkCompletedWithWrappedCFException(h2);
1742		checkCompletedWithWrappedCFException(h3);
1743	+	r1.assertInvoked();
1744	+	r2.assertInvoked();
1745	+	r3.assertInvoked();
1746		checkCompletedNormally(f, v1);
1747		checkCompletedNormally(g, v2);
1748		}}
#	Line 1690 | Line 1753 | public class CompletableFutureTest exten
1753		*/
1754		public void testThenAcceptBoth_normalCompletion() {
1755		for (ExecutionMode m : ExecutionMode.values())
1693	–	for (boolean createIncomplete : new boolean[] { true, false })
1756		for (boolean fFirst : new boolean[] { true, false })
1757		for (Integer v1 : new Integer[] { 1, null })
1758		for (Integer v2 : new Integer[] { 2, null })
1759		{
1760		final CompletableFuture<Integer> f = new CompletableFuture<>();
1761		final CompletableFuture<Integer> g = new CompletableFuture<>();
1762	<	final SubtractAction r = new SubtractAction(m);
1762	>	final SubtractAction r1 = new SubtractAction(m);
1763	>	final SubtractAction r2 = new SubtractAction(m);
1764	>	final SubtractAction r3 = new SubtractAction(m);
1765
1766	<	assertTrue(fFirst ? f.complete(v1) : g.complete(v2));
1767	<	if (!createIncomplete)
1768	<	assertTrue(!fFirst ? f.complete(v1) : g.complete(v2));
1769	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1706	<	if (createIncomplete) {
1707	<	checkIncomplete(h);
1708	<	r.assertNotInvoked();
1709	<	assertTrue(!fFirst ? f.complete(v1) : g.complete(v2));
1710	<	}
1766	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1767	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1768	>	final Integer w1 =  fFirst ? v1 : v2;
1769	>	final Integer w2 = !fFirst ? v1 : v2;
1770
1771	<	checkCompletedNormally(h, null);
1772	<	r.assertValue(subtract(v1, v2));
1771	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1772	>	assertTrue(fst.complete(w1));
1773	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1774	>	checkIncomplete(h1);
1775	>	checkIncomplete(h2);
1776	>	r1.assertNotInvoked();
1777	>	r2.assertNotInvoked();
1778	>	assertTrue(snd.complete(w2));
1779	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1780	>
1781	>	checkCompletedNormally(h1, null);
1782	>	checkCompletedNormally(h2, null);
1783	>	checkCompletedNormally(h3, null);
1784	>	r1.assertValue(subtract(v1, v2));
1785	>	r2.assertValue(subtract(v1, v2));
1786	>	r3.assertValue(subtract(v1, v2));
1787		checkCompletedNormally(f, v1);
1788		checkCompletedNormally(g, v2);
1789		}}
#	Line 1719 | Line 1792 | public class CompletableFutureTest exten
1792		* thenAcceptBoth result completes exceptionally after exceptional
1793		* completion of either source
1794		*/
1795	<	public void testThenAcceptBoth_exceptionalCompletion() {
1795	>	public void testThenAcceptBoth_exceptionalCompletion() throws Throwable {
1796		for (ExecutionMode m : ExecutionMode.values())
1724	–	for (boolean createIncomplete : new boolean[] { true, false })
1797		for (boolean fFirst : new boolean[] { true, false })
1798	+	for (boolean failFirst : new boolean[] { true, false })
1799		for (Integer v1 : new Integer[] { 1, null })
1800		{
1801		final CompletableFuture<Integer> f = new CompletableFuture<>();
1802		final CompletableFuture<Integer> g = new CompletableFuture<>();
1803		final CFException ex = new CFException();
1804	<	final SubtractAction r = new SubtractAction(m);
1804	>	final SubtractAction r1 = new SubtractAction(m);
1805	>	final SubtractAction r2 = new SubtractAction(m);
1806	>	final SubtractAction r3 = new SubtractAction(m);
1807
1808	<	assertTrue((fFirst ? f : g).complete(v1));
1809	<	if (!createIncomplete)
1810	<	assertTrue((!fFirst ? f : g).completeExceptionally(ex));
1811	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1812	<	if (createIncomplete) {
1813	<	checkIncomplete(h);
1814	<	assertTrue((!fFirst ? f : g).completeExceptionally(ex));
1815	<	}
1808	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1809	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1810	>	final Callable<Boolean> complete1 = failFirst ?
1811	>	() -> fst.completeExceptionally(ex) :
1812	>	() -> fst.complete(v1);
1813	>	final Callable<Boolean> complete2 = failFirst ?
1814	>	() -> snd.complete(v1) :
1815	>	() -> snd.completeExceptionally(ex);
1816
1817	<	checkCompletedWithWrappedException(h, ex);
1818	<	r.assertNotInvoked();
1819	<	checkCompletedNormally(fFirst ? f : g, v1);
1820	<	checkCompletedExceptionally(!fFirst ? f : g, ex);
1817	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1818	>	assertTrue(complete1.call());
1819	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1820	>	checkIncomplete(h1);
1821	>	checkIncomplete(h2);
1822	>	assertTrue(complete2.call());
1823	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1824	>
1825	>	checkCompletedWithWrappedException(h1, ex);
1826	>	checkCompletedWithWrappedException(h2, ex);
1827	>	checkCompletedWithWrappedException(h3, ex);
1828	>	r1.assertNotInvoked();
1829	>	r2.assertNotInvoked();
1830	>	r3.assertNotInvoked();
1831	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1832	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1833		}}
1834
1835		/**
1836		* thenAcceptBoth result completes exceptionally if either source cancelled
1837		*/
1838	<	public void testThenAcceptBoth_sourceCancelled() {
1838	>	public void testThenAcceptBoth_sourceCancelled() throws Throwable {
1839		for (ExecutionMode m : ExecutionMode.values())
1840		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1754	–	for (boolean createIncomplete : new boolean[] { true, false })
1841		for (boolean fFirst : new boolean[] { true, false })
1842	+	for (boolean failFirst : new boolean[] { true, false })
1843		for (Integer v1 : new Integer[] { 1, null })
1844		{
1845		final CompletableFuture<Integer> f = new CompletableFuture<>();
1846		final CompletableFuture<Integer> g = new CompletableFuture<>();
1847	<	final SubtractAction r = new SubtractAction(m);
1847	>	final SubtractAction r1 = new SubtractAction(m);
1848	>	final SubtractAction r2 = new SubtractAction(m);
1849	>	final SubtractAction r3 = new SubtractAction(m);
1850
1851	<	assertTrue((fFirst ? f : g).complete(v1));
1852	<	if (!createIncomplete)
1853	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1854	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1855	<	if (createIncomplete) {
1856	<	checkIncomplete(h);
1857	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
1858	<	}
1851	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1852	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1853	>	final Callable<Boolean> complete1 = failFirst ?
1854	>	() -> fst.cancel(mayInterruptIfRunning) :
1855	>	() -> fst.complete(v1);
1856	>	final Callable<Boolean> complete2 = failFirst ?
1857	>	() -> snd.complete(v1) :
1858	>	() -> snd.cancel(mayInterruptIfRunning);
1859
1860	<	checkCompletedWithWrappedCancellationException(h);
1861	<	checkCancelled(!fFirst ? f : g);
1862	<	r.assertNotInvoked();
1863	<	checkCompletedNormally(fFirst ? f : g, v1);
1860	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1861	>	assertTrue(complete1.call());
1862	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1863	>	checkIncomplete(h1);
1864	>	checkIncomplete(h2);
1865	>	assertTrue(complete2.call());
1866	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1867	>
1868	>	checkCompletedWithWrappedCancellationException(h1);
1869	>	checkCompletedWithWrappedCancellationException(h2);
1870	>	checkCompletedWithWrappedCancellationException(h3);
1871	>	r1.assertNotInvoked();
1872	>	r2.assertNotInvoked();
1873	>	r3.assertNotInvoked();
1874	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1875	>	checkCancelled(failFirst ? fst : snd);
1876		}}
1877
1878		/**
#	Line 1785 | Line 1886 | public class CompletableFutureTest exten
1886		{
1887		final CompletableFuture<Integer> f = new CompletableFuture<>();
1888		final CompletableFuture<Integer> g = new CompletableFuture<>();
1889	<	final FailingBiConsumer r = new FailingBiConsumer(m);
1890	<	final CompletableFuture<Void> h = m.thenAcceptBoth(f, g, r);
1889	>	final FailingBiConsumer r1 = new FailingBiConsumer(m);
1890	>	final FailingBiConsumer r2 = new FailingBiConsumer(m);
1891	>	final FailingBiConsumer r3 = new FailingBiConsumer(m);
1892	>
1893	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1894	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1895	>	final Integer w1 =  fFirst ? v1 : v2;
1896	>	final Integer w2 = !fFirst ? v1 : v2;
1897
1898	<	assertTrue(fFirst ? f.complete(v1) : g.complete(v2));
1899	<	assertTrue(!fFirst ? f.complete(v1) : g.complete(v2));
1898	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1899	>	assertTrue(fst.complete(w1));
1900	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1901	>	assertTrue(snd.complete(w2));
1902	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1903
1904	<	checkCompletedWithWrappedCFException(h);
1904	>	checkCompletedWithWrappedCFException(h1);
1905	>	checkCompletedWithWrappedCFException(h2);
1906	>	checkCompletedWithWrappedCFException(h3);
1907	>	r1.assertInvoked();
1908	>	r2.assertInvoked();
1909	>	r3.assertInvoked();
1910		checkCompletedNormally(f, v1);
1911		checkCompletedNormally(g, v2);
1912		}}
#	Line 1802 | Line 1917 | public class CompletableFutureTest exten
1917		*/
1918		public void testRunAfterBoth_normalCompletion() {
1919		for (ExecutionMode m : ExecutionMode.values())
1805	–	for (boolean createIncomplete : new boolean[] { true, false })
1920		for (boolean fFirst : new boolean[] { true, false })
1921		for (Integer v1 : new Integer[] { 1, null })
1922		for (Integer v2 : new Integer[] { 2, null })
1923		{
1924		final CompletableFuture<Integer> f = new CompletableFuture<>();
1925		final CompletableFuture<Integer> g = new CompletableFuture<>();
1926	<	final Noop r = new Noop(m);
1926	>	final Noop r1 = new Noop(m);
1927	>	final Noop r2 = new Noop(m);
1928	>	final Noop r3 = new Noop(m);
1929
1930	<	assertTrue(fFirst ? f.complete(v1) : g.complete(v2));
1931	<	if (!createIncomplete)
1932	<	assertTrue(!fFirst ? f.complete(v1) : g.complete(v2));
1933	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1818	<	if (createIncomplete) {
1819	<	checkIncomplete(h);
1820	<	r.assertNotInvoked();
1821	<	assertTrue(!fFirst ? f.complete(v1) : g.complete(v2));
1822	<	}
1930	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1931	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1932	>	final Integer w1 =  fFirst ? v1 : v2;
1933	>	final Integer w2 = !fFirst ? v1 : v2;
1934
1935	<	checkCompletedNormally(h, null);
1936	<	r.assertInvoked();
1935	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1936	>	assertTrue(fst.complete(w1));
1937	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1938	>	checkIncomplete(h1);
1939	>	checkIncomplete(h2);
1940	>	r1.assertNotInvoked();
1941	>	r2.assertNotInvoked();
1942	>	assertTrue(snd.complete(w2));
1943	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
1944	>
1945	>	checkCompletedNormally(h1, null);
1946	>	checkCompletedNormally(h2, null);
1947	>	checkCompletedNormally(h3, null);
1948	>	r1.assertInvoked();
1949	>	r2.assertInvoked();
1950	>	r3.assertInvoked();
1951		checkCompletedNormally(f, v1);
1952		checkCompletedNormally(g, v2);
1953		}}
#	Line 1831 | Line 1956 | public class CompletableFutureTest exten
1956		* runAfterBoth result completes exceptionally after exceptional
1957		* completion of either source
1958		*/
1959	<	public void testRunAfterBoth_exceptionalCompletion() {
1959	>	public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
1960		for (ExecutionMode m : ExecutionMode.values())
1836	–	for (boolean createIncomplete : new boolean[] { true, false })
1961		for (boolean fFirst : new boolean[] { true, false })
1962	+	for (boolean failFirst : new boolean[] { true, false })
1963		for (Integer v1 : new Integer[] { 1, null })
1964		{
1965		final CompletableFuture<Integer> f = new CompletableFuture<>();
1966		final CompletableFuture<Integer> g = new CompletableFuture<>();
1967		final CFException ex = new CFException();
1968	<	final Noop r = new Noop(m);
1968	>	final Noop r1 = new Noop(m);
1969	>	final Noop r2 = new Noop(m);
1970	>	final Noop r3 = new Noop(m);
1971
1972	<	assertTrue((fFirst ? f : g).complete(v1));
1973	<	if (!createIncomplete)
1974	<	assertTrue((!fFirst ? f : g).completeExceptionally(ex));
1975	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
1976	<	if (createIncomplete) {
1977	<	checkIncomplete(h);
1978	<	assertTrue((!fFirst ? f : g).completeExceptionally(ex));
1979	<	}
1972	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1973	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1974	>	final Callable<Boolean> complete1 = failFirst ?
1975	>	() -> fst.completeExceptionally(ex) :
1976	>	() -> fst.complete(v1);
1977	>	final Callable<Boolean> complete2 = failFirst ?
1978	>	() -> snd.complete(v1) :
1979	>	() -> snd.completeExceptionally(ex);
1980
1981	<	checkCompletedWithWrappedException(h, ex);
1982	<	r.assertNotInvoked();
1983	<	checkCompletedNormally(fFirst ? f : g, v1);
1984	<	checkCompletedExceptionally(!fFirst ? f : g, ex);
1981	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1982	>	assertTrue(complete1.call());
1983	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1984	>	checkIncomplete(h1);
1985	>	checkIncomplete(h2);
1986	>	assertTrue(complete2.call());
1987	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
1988	>
1989	>	checkCompletedWithWrappedException(h1, ex);
1990	>	checkCompletedWithWrappedException(h2, ex);
1991	>	checkCompletedWithWrappedException(h3, ex);
1992	>	r1.assertNotInvoked();
1993	>	r2.assertNotInvoked();
1994	>	r3.assertNotInvoked();
1995	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1996	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1997		}}
1998
1999		/**
2000		* runAfterBoth result completes exceptionally if either source cancelled
2001		*/
2002	<	public void testRunAfterBoth_sourceCancelled() {
2002	>	public void testRunAfterBoth_sourceCancelled() throws Throwable {
2003		for (ExecutionMode m : ExecutionMode.values())
2004		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1866	–	for (boolean createIncomplete : new boolean[] { true, false })
2005		for (boolean fFirst : new boolean[] { true, false })
2006	+	for (boolean failFirst : new boolean[] { true, false })
2007		for (Integer v1 : new Integer[] { 1, null })
2008		{
2009		final CompletableFuture<Integer> f = new CompletableFuture<>();
2010		final CompletableFuture<Integer> g = new CompletableFuture<>();
2011	<	final Noop r = new Noop(m);
2011	>	final Noop r1 = new Noop(m);
2012	>	final Noop r2 = new Noop(m);
2013	>	final Noop r3 = new Noop(m);
2014
2015	<	assertTrue((fFirst ? f : g).complete(v1));
2016	<	if (!createIncomplete)
2017	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
2018	<	final CompletableFuture<Void> h = m.runAfterBoth(f, g, r);
2019	<	if (createIncomplete) {
2020	<	checkIncomplete(h);
2021	<	assertTrue((!fFirst ? f : g).cancel(mayInterruptIfRunning));
2022	<	}
2015	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2016	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2017	>	final Callable<Boolean> complete1 = failFirst ?
2018	>	() -> fst.cancel(mayInterruptIfRunning) :
2019	>	() -> fst.complete(v1);
2020	>	final Callable<Boolean> complete2 = failFirst ?
2021	>	() -> snd.complete(v1) :
2022	>	() -> snd.cancel(mayInterruptIfRunning);
2023
2024	<	checkCompletedWithWrappedCancellationException(h);
2025	<	checkCancelled(!fFirst ? f : g);
2026	<	r.assertNotInvoked();
2027	<	checkCompletedNormally(fFirst ? f : g, v1);
2024	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2025	>	assertTrue(complete1.call());
2026	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2027	>	checkIncomplete(h1);
2028	>	checkIncomplete(h2);
2029	>	assertTrue(complete2.call());
2030	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2031	>
2032	>	checkCompletedWithWrappedCancellationException(h1);
2033	>	checkCompletedWithWrappedCancellationException(h2);
2034	>	checkCompletedWithWrappedCancellationException(h3);
2035	>	r1.assertNotInvoked();
2036	>	r2.assertNotInvoked();
2037	>	r3.assertNotInvoked();
2038	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2039	>	checkCancelled(failFirst ? fst : snd);
2040		}}
2041
2042		/**
#	Line 1899 | Line 2052 | public class CompletableFutureTest exten
2052		final CompletableFuture<Integer> g = new CompletableFuture<>();
2053		final FailingRunnable r1 = new FailingRunnable(m);
2054		final FailingRunnable r2 = new FailingRunnable(m);
2055	+	final FailingRunnable r3 = new FailingRunnable(m);
2056	+
2057	+	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2058	+	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2059	+	final Integer w1 =  fFirst ? v1 : v2;
2060	+	final Integer w2 = !fFirst ? v1 : v2;
2061
2062	<	CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2063	<	assertTrue(fFirst ? f.complete(v1) : g.complete(v2));
2064	<	assertTrue(!fFirst ? f.complete(v1) : g.complete(v2));
2065	<	CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2062	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2063	>	assertTrue(fst.complete(w1));
2064	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2065	>	assertTrue(snd.complete(w2));
2066	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2067
2068		checkCompletedWithWrappedCFException(h1);
2069		checkCompletedWithWrappedCFException(h2);
2070	+	checkCompletedWithWrappedCFException(h3);
2071	+	r1.assertInvoked();
2072	+	r2.assertInvoked();
2073	+	r3.assertInvoked();
2074		checkCompletedNormally(f, v1);
2075		checkCompletedNormally(g, v2);
2076		}}
#	Line 2802 | Line 2966 | public class CompletableFutureTest exten
2966		checkCancelled(f);
2967		}}
2968
2969	+	/**
2970	+	* thenCompose result completes exceptionally if the result of the action does
2971	+	*/
2972	+	public void testThenCompose_actionReturnsFailingFuture() {
2973	+	for (ExecutionMode m : ExecutionMode.values())
2974	+	for (int order = 0; order < 6; order++)
2975	+	for (Integer v1 : new Integer[] { 1, null })
2976	+	{
2977	+	final CFException ex = new CFException();
2978	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
2979	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
2980	+	final CompletableFuture<Integer> h;
2981	+	// Test all permutations of orders
2982	+	switch (order) {
2983	+	case 0:
2984	+	assertTrue(f.complete(v1));
2985	+	assertTrue(g.completeExceptionally(ex));
2986	+	h = m.thenCompose(f, (x -> g));
2987	+	break;
2988	+	case 1:
2989	+	assertTrue(f.complete(v1));
2990	+	h = m.thenCompose(f, (x -> g));
2991	+	assertTrue(g.completeExceptionally(ex));
2992	+	break;
2993	+	case 2:
2994	+	assertTrue(g.completeExceptionally(ex));
2995	+	assertTrue(f.complete(v1));
2996	+	h = m.thenCompose(f, (x -> g));
2997	+	break;
2998	+	case 3:
2999	+	assertTrue(g.completeExceptionally(ex));
3000	+	h = m.thenCompose(f, (x -> g));
3001	+	assertTrue(f.complete(v1));
3002	+	break;
3003	+	case 4:
3004	+	h = m.thenCompose(f, (x -> g));
3005	+	assertTrue(f.complete(v1));
3006	+	assertTrue(g.completeExceptionally(ex));
3007	+	break;
3008	+	case 5:
3009	+	h = m.thenCompose(f, (x -> g));
3010	+	assertTrue(f.complete(v1));
3011	+	assertTrue(g.completeExceptionally(ex));
3012	+	break;
3013	+	default: throw new AssertionError();
3014	+	}
3015	+
3016	+	checkCompletedExceptionally(g, ex);
3017	+	checkCompletedWithWrappedException(h, ex);
3018	+	checkCompletedNormally(f, v1);
3019	+	}}
3020	+
3021		// other static methods
3022
3023		/**
#	Line 2818 | Line 3034 | public class CompletableFutureTest exten
3034		* when all components complete normally
3035		*/
3036		public void testAllOf_normal() throws Exception {
3037	<	for (int k = 1; k < 20; ++k) {
3037	>	for (int k = 1; k < 10; k++) {
3038		CompletableFuture<Integer>[] fs
3039		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3040	<	for (int i = 0; i < k; ++i)
3040	>	for (int i = 0; i < k; i++)
3041		fs[i] = new CompletableFuture<>();
3042		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3043	<	for (int i = 0; i < k; ++i) {
3043	>	for (int i = 0; i < k; i++) {
3044		checkIncomplete(f);
3045		checkIncomplete(CompletableFuture.allOf(fs));
3046		fs[i].complete(one);
#	Line 2835 | Line 3051 | public class CompletableFutureTest exten
3051		}
3052
3053		public void testAllOf_backwards() throws Exception {
3054	<	for (int k = 1; k < 20; ++k) {
3054	>	for (int k = 1; k < 10; k++) {
3055		CompletableFuture<Integer>[] fs
3056		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3057	<	for (int i = 0; i < k; ++i)
3057	>	for (int i = 0; i < k; i++)
3058		fs[i] = new CompletableFuture<>();
3059		CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3060		for (int i = k - 1; i >= 0; i--) {
#	Line 2851 | Line 3067 | public class CompletableFutureTest exten
3067		}
3068		}
3069
3070	+	public void testAllOf_exceptional() throws Exception {
3071	+	for (int k = 1; k < 10; k++) {
3072	+	CompletableFuture<Integer>[] fs
3073	+	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3074	+	CFException ex = new CFException();
3075	+	for (int i = 0; i < k; i++)
3076	+	fs[i] = new CompletableFuture<>();
3077	+	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3078	+	for (int i = 0; i < k; i++) {
3079	+	checkIncomplete(f);
3080	+	checkIncomplete(CompletableFuture.allOf(fs));
3081	+	if (i != k / 2) {
3082	+	fs[i].complete(i);
3083	+	checkCompletedNormally(fs[i], i);
3084	+	} else {
3085	+	fs[i].completeExceptionally(ex);
3086	+	checkCompletedExceptionally(fs[i], ex);
3087	+	}
3088	+	}
3089	+	checkCompletedWithWrappedException(f, ex);
3090	+	checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3091	+	}
3092	+	}
3093	+
3094		/**
3095		* anyOf(no component futures) returns an incomplete future
3096		*/
3097		public void testAnyOf_empty() throws Exception {
3098	+	for (Integer v1 : new Integer[] { 1, null })
3099	+	{
3100		CompletableFuture<Object> f = CompletableFuture.anyOf();
3101		checkIncomplete(f);
3102	<	}
3102	>
3103	>	f.complete(v1);
3104	>	checkCompletedNormally(f, v1);
3105	>	}}
3106
3107		/**
3108		* anyOf returns a future completed normally with a value when
3109		* a component future does
3110		*/
3111		public void testAnyOf_normal() throws Exception {
3112	<	for (int k = 0; k < 10; ++k) {
3112	>	for (int k = 0; k < 10; k++) {
3113		CompletableFuture[] fs = new CompletableFuture[k];
3114	<	for (int i = 0; i < k; ++i)
3114	>	for (int i = 0; i < k; i++)
3115		fs[i] = new CompletableFuture<>();
3116		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3117		checkIncomplete(f);
3118	<	for (int i = 0; i < k; ++i) {
3119	<	fs[i].complete(one);
3120	<	checkCompletedNormally(f, one);
3121	<	checkCompletedNormally(CompletableFuture.anyOf(fs), one);
3118	>	for (int i = 0; i < k; i++) {
3119	>	fs[i].complete(i);
3120	>	checkCompletedNormally(f, 0);
3121	>	int x = (int) CompletableFuture.anyOf(fs).join();
3122	>	assertTrue(0 <= x && x <= i);
3123	>	}
3124	>	}
3125	>	}
3126	>	public void testAnyOf_normal_backwards() throws Exception {
3127	>	for (int k = 0; k < 10; k++) {
3128	>	CompletableFuture[] fs = new CompletableFuture[k];
3129	>	for (int i = 0; i < k; i++)
3130	>	fs[i] = new CompletableFuture<>();
3131	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3132	>	checkIncomplete(f);
3133	>	for (int i = k - 1; i >= 0; i--) {
3134	>	fs[i].complete(i);
3135	>	checkCompletedNormally(f, k - 1);
3136	>	int x = (int) CompletableFuture.anyOf(fs).join();
3137	>	assertTrue(i <= x && x <= k - 1);
3138		}
3139		}
3140		}
#	Line 2882 | Line 3143 | public class CompletableFutureTest exten
3143		* anyOf result completes exceptionally when any component does.
3144		*/
3145		public void testAnyOf_exceptional() throws Exception {
3146	<	for (int k = 0; k < 10; ++k) {
3146	>	for (int k = 0; k < 10; k++) {
3147	>	CompletableFuture[] fs = new CompletableFuture[k];
3148	>	CFException[] exs = new CFException[k];
3149	>	for (int i = 0; i < k; i++) {
3150	>	fs[i] = new CompletableFuture<>();
3151	>	exs[i] = new CFException();
3152	>	}
3153	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3154	>	checkIncomplete(f);
3155	>	for (int i = 0; i < k; i++) {
3156	>	fs[i].completeExceptionally(exs[i]);
3157	>	checkCompletedWithWrappedException(f, exs[0]);
3158	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3159	>	}
3160	>	}
3161	>	}
3162	>
3163	>	public void testAnyOf_exceptional_backwards() throws Exception {
3164	>	for (int k = 0; k < 10; k++) {
3165		CompletableFuture[] fs = new CompletableFuture[k];
3166	<	for (int i = 0; i < k; ++i)
3166	>	CFException[] exs = new CFException[k];
3167	>	for (int i = 0; i < k; i++) {
3168		fs[i] = new CompletableFuture<>();
3169	+	exs[i] = new CFException();
3170	+	}
3171		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3172		checkIncomplete(f);
3173	<	for (int i = 0; i < k; ++i) {
3174	<	fs[i].completeExceptionally(new CFException());
3175	<	checkCompletedWithWrappedCFException(f);
3173	>	for (int i = k - 1; i >= 0; i--) {
3174	>	fs[i].completeExceptionally(exs[i]);
3175	>	checkCompletedWithWrappedException(f, exs[k - 1]);
3176		checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3177		}
3178		}
#	Line 2903 | Line 3185 | public class CompletableFutureTest exten
3185		CompletableFuture<Integer> f = new CompletableFuture<>();
3186		CompletableFuture<Integer> g = new CompletableFuture<>();
3187		CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
2906	–	CompletableFuture<?> h;
3188		ThreadExecutor exec = new ThreadExecutor();
3189
3190		Runnable[] throwingActions = {
3191		() -> CompletableFuture.supplyAsync(null),
3192		() -> CompletableFuture.supplyAsync(null, exec),
3193	<	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.DEFAULT, 42), null),
3193	>	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3194
3195		() -> CompletableFuture.runAsync(null),
3196		() -> CompletableFuture.runAsync(null, exec),
#	Line 3000 | Line 3281 | public class CompletableFutureTest exten
3281		() -> CompletableFuture.anyOf(null, f),
3282
3283		() -> f.obtrudeException(null),
3284	+
3285	+	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3286	+	() -> CompletableFuture.delayedExecutor(1L, null, new ThreadExecutor()),
3287	+	() -> CompletableFuture.delayedExecutor(1L, null),
3288	+
3289	+	() -> f.orTimeout(1L, null),
3290	+	() -> f.completeOnTimeout(42, 1L, null),
3291	+
3292	+	() -> CompletableFuture.failedFuture(null),
3293	+	() -> CompletableFuture.failedStage(null),
3294		};
3295
3296		assertThrows(NullPointerException.class, throwingActions);
#	Line 3014 | Line 3305 | public class CompletableFutureTest exten
3305		assertSame(f, f.toCompletableFuture());
3306		}
3307
3308	<	//     public void testRunAfterEither_resultDeterminedAtTimeOfCreation() {
3309	<	//         for (ExecutionMode m : ExecutionMode.values())
3310	<	//         for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3311	<	//         for (Integer v1 : new Integer[] { 1, null })
3312	<	//     {
3313	<	//         final CompletableFuture<Integer> f = new CompletableFuture<>();
3314	<	//         final CompletableFuture<Integer> g = new CompletableFuture<>();
3315	<	//         final Noop[] rs = new Noop[2];
3316	<	//         for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
3317	<	//         f.complete(v1);
3318	<	//         final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
3319	<	//         final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
3320	<	//         assertTrue(g.cancel(mayInterruptIfRunning));
3321	<	//         checkCompletedNormally(h0, null);
3322	<	//         checkCompletedNormally(h1, null);
3323	<	//         for (Noop r : rs) r.assertInvoked();
3324	<	//     }}
3308	>	// jdk9
3309	>
3310	>	/**
3311	>	* newIncompleteFuture returns an incomplete CompletableFuture
3312	>	*/
3313	>	public void testNewIncompleteFuture() {
3314	>	for (Integer v1 : new Integer[] { 1, null })
3315	>	{
3316	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3317	>	CompletableFuture<Integer> g = f.newIncompleteFuture();
3318	>	checkIncomplete(f);
3319	>	checkIncomplete(g);
3320	>	f.complete(v1);
3321	>	checkCompletedNormally(f, v1);
3322	>	checkIncomplete(g);
3323	>	g.complete(v1);
3324	>	checkCompletedNormally(g, v1);
3325	>	assertSame(g.getClass(), CompletableFuture.class);
3326	>	}}
3327	>
3328	>	/**
3329	>	* completedStage returns a completed CompletionStage
3330	>	*/
3331	>	public void testCompletedStage() {
3332	>	AtomicInteger x = new AtomicInteger(0);
3333	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3334	>	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3335	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3336	>	assertEquals(x.get(), 1);
3337	>	assertNull(r.get());
3338	>	}
3339	>
3340	>	/**
3341	>	* defaultExecutor by default returns the commonPool if
3342	>	* it supports more than one thread.
3343	>	*/
3344	>	public void testDefaultExecutor() {
3345	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3346	>	Executor e = f.defaultExecutor();
3347	>	Executor c = ForkJoinPool.commonPool();
3348	>	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3349	>	assertSame(e, c);
3350	>	else
3351	>	assertNotSame(e, c);
3352	>	}
3353	>
3354	>	/**
3355	>	* failedFuture returns a CompletableFuture completed
3356	>	* exceptionally with the given Exception
3357	>	*/
3358	>	public void testFailedFuture() {
3359	>	CFException ex = new CFException();
3360	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3361	>	checkCompletedExceptionally(f, ex);
3362	>	}
3363	>
3364	>	/**
3365	>	* failedFuture(null) throws NPE
3366	>	*/
3367	>	public void testFailedFuture_null() {
3368	>	try {
3369	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3370	>	shouldThrow();
3371	>	} catch (NullPointerException success) {}
3372	>	}
3373	>
3374	>	/**
3375	>	* copy returns a CompletableFuture that is completed normally,
3376	>	* with the same value, when source is.
3377	>	*/
3378	>	public void testCopy() {
3379	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3380	>	CompletableFuture<Integer> g = f.copy();
3381	>	checkIncomplete(f);
3382	>	checkIncomplete(g);
3383	>	f.complete(1);
3384	>	checkCompletedNormally(f, 1);
3385	>	checkCompletedNormally(g, 1);
3386	>	}
3387	>
3388	>	/**
3389	>	* copy returns a CompletableFuture that is completed exceptionally
3390	>	* when source is.
3391	>	*/
3392	>	public void testCopy2() {
3393	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3394	>	CompletableFuture<Integer> g = f.copy();
3395	>	checkIncomplete(f);
3396	>	checkIncomplete(g);
3397	>	CFException ex = new CFException();
3398	>	f.completeExceptionally(ex);
3399	>	checkCompletedExceptionally(f, ex);
3400	>	checkCompletedWithWrappedException(g, ex);
3401	>	}
3402	>
3403	>	/**
3404	>	* minimalCompletionStage returns a CompletableFuture that is
3405	>	* completed normally, with the same value, when source is.
3406	>	*/
3407	>	public void testMinimalCompletionStage() {
3408	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3409	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3410	>	AtomicInteger x = new AtomicInteger(0);
3411	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3412	>	checkIncomplete(f);
3413	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3414	>	f.complete(1);
3415	>	checkCompletedNormally(f, 1);
3416	>	assertEquals(x.get(), 1);
3417	>	assertNull(r.get());
3418	>	}
3419	>
3420	>	/**
3421	>	* minimalCompletionStage returns a CompletableFuture that is
3422	>	* completed exceptionally when source is.
3423	>	*/
3424	>	public void testMinimalCompletionStage2() {
3425	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3426	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3427	>	AtomicInteger x = new AtomicInteger(0);
3428	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3429	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3430	>	checkIncomplete(f);
3431	>	CFException ex = new CFException();
3432	>	f.completeExceptionally(ex);
3433	>	checkCompletedExceptionally(f, ex);
3434	>	assertEquals(x.get(), 0);
3435	>	assertEquals(r.get().getCause(), ex);
3436	>	}
3437	>
3438	>	/**
3439	>	* failedStage returns a CompletionStage completed
3440	>	* exceptionally with the given Exception
3441	>	*/
3442	>	public void testFailedStage() {
3443	>	CFException ex = new CFException();
3444	>	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3445	>	AtomicInteger x = new AtomicInteger(0);
3446	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3447	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3448	>	assertEquals(x.get(), 0);
3449	>	assertEquals(r.get(), ex);
3450	>	}
3451	>
3452	>	/**
3453	>	* completeAsync completes with value of given supplier
3454	>	*/
3455	>	public void testCompleteAsync() {
3456	>	for (Integer v1 : new Integer[] { 1, null })
3457	>	{
3458	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3459	>	f.completeAsync(() -> v1);
3460	>	f.join();
3461	>	checkCompletedNormally(f, v1);
3462	>	}}
3463	>
3464	>	/**
3465	>	* completeAsync completes exceptionally if given supplier throws
3466	>	*/
3467	>	public void testCompleteAsync2() {
3468	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3469	>	CFException ex = new CFException();
3470	>	f.completeAsync(() -> {if (true) throw ex; return 1;});
3471	>	try {
3472	>	f.join();
3473	>	shouldThrow();
3474	>	} catch (CompletionException success) {}
3475	>	checkCompletedWithWrappedException(f, ex);
3476	>	}
3477	>
3478	>	/**
3479	>	* completeAsync with given executor completes with value of given supplier
3480	>	*/
3481	>	public void testCompleteAsync3() {
3482	>	for (Integer v1 : new Integer[] { 1, null })
3483	>	{
3484	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3485	>	ThreadExecutor executor = new ThreadExecutor();
3486	>	f.completeAsync(() -> v1, executor);
3487	>	assertSame(v1, f.join());
3488	>	checkCompletedNormally(f, v1);
3489	>	assertEquals(1, executor.count.get());
3490	>	}}
3491	>
3492	>	/**
3493	>	* completeAsync with given executor completes exceptionally if
3494	>	* given supplier throws
3495	>	*/
3496	>	public void testCompleteAsync4() {
3497	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3498	>	CFException ex = new CFException();
3499	>	ThreadExecutor executor = new ThreadExecutor();
3500	>	f.completeAsync(() -> {if (true) throw ex; return 1;}, executor);
3501	>	try {
3502	>	f.join();
3503	>	shouldThrow();
3504	>	} catch (CompletionException success) {}
3505	>	checkCompletedWithWrappedException(f, ex);
3506	>	assertEquals(1, executor.count.get());
3507	>	}
3508	>
3509	>	/**
3510	>	* orTimeout completes with TimeoutException if not complete
3511	>	*/
3512	>	public void testOrTimeout_timesOut() {
3513	>	long timeoutMillis = timeoutMillis();
3514	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3515	>	long startTime = System.nanoTime();
3516	>	f.orTimeout(timeoutMillis, MILLISECONDS);
3517	>	checkCompletedWithTimeoutException(f);
3518	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3519	>	}
3520	>
3521	>	/**
3522	>	* orTimeout completes normally if completed before timeout
3523	>	*/
3524	>	public void testOrTimeout_completed() {
3525	>	for (Integer v1 : new Integer[] { 1, null })
3526	>	{
3527	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3528	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3529	>	long startTime = System.nanoTime();
3530	>	f.complete(v1);
3531	>	f.orTimeout(LONG_DELAY_MS, MILLISECONDS);
3532	>	g.orTimeout(LONG_DELAY_MS, MILLISECONDS);
3533	>	g.complete(v1);
3534	>	checkCompletedNormally(f, v1);
3535	>	checkCompletedNormally(g, v1);
3536	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3537	>	}}
3538	>
3539	>	/**
3540	>	* completeOnTimeout completes with given value if not complete
3541	>	*/
3542	>	public void testCompleteOnTimeout_timesOut() {
3543	>	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3544	>	() -> testCompleteOnTimeout_timesOut(null));
3545	>	}
3546	>
3547	>	public void testCompleteOnTimeout_timesOut(Integer v) {
3548	>	long timeoutMillis = timeoutMillis();
3549	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3550	>	long startTime = System.nanoTime();
3551	>	f.completeOnTimeout(v, timeoutMillis, MILLISECONDS);
3552	>	assertSame(v, f.join());
3553	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3554	>	f.complete(99);         // should have no effect
3555	>	checkCompletedNormally(f, v);
3556	>	}
3557	>
3558	>	/**
3559	>	* completeOnTimeout has no effect if completed within timeout
3560	>	*/
3561	>	public void testCompleteOnTimeout_completed() {
3562	>	for (Integer v1 : new Integer[] { 1, null })
3563	>	{
3564	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3565	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3566	>	long startTime = System.nanoTime();
3567	>	f.complete(v1);
3568	>	f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS);
3569	>	g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS);
3570	>	g.complete(v1);
3571	>	checkCompletedNormally(f, v1);
3572	>	checkCompletedNormally(g, v1);
3573	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3574	>	}}
3575	>
3576	>	/**
3577	>	* delayedExecutor returns an executor that delays submission
3578	>	*/
3579	>	public void testDelayedExecutor() {
3580	>	testInParallel(() -> testDelayedExecutor(null, null),
3581	>	() -> testDelayedExecutor(null, 1),
3582	>	() -> testDelayedExecutor(new ThreadExecutor(), 1),
3583	>	() -> testDelayedExecutor(new ThreadExecutor(), 1));
3584	>	}
3585	>
3586	>	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
3587	>	long timeoutMillis = timeoutMillis();
3588	>	// Use an "unreasonably long" long timeout to catch lingering threads
3589	>	long longTimeoutMillis = 1000 * 60 * 60 * 24;
3590	>	final Executor delayer, longDelayer;
3591	>	if (executor == null) {
3592	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
3593	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
3594	>	} else {
3595	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
3596	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
3597	>	}
3598	>	long startTime = System.nanoTime();
3599	>	CompletableFuture<Integer> f =
3600	>	CompletableFuture.supplyAsync(() -> v, delayer);
3601	>	CompletableFuture<Integer> g =
3602	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
3603	>
3604	>	assertNull(g.getNow(null));
3605	>
3606	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
3607	>	long millisElapsed = millisElapsedSince(startTime);
3608	>	assertTrue(millisElapsed >= timeoutMillis);
3609	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
3610	>
3611	>	checkCompletedNormally(f, v);
3612	>
3613	>	checkIncomplete(g);
3614	>	assertTrue(g.cancel(true));
3615	>	}
3616	>
3617	>	//--- tests of implementation details; not part of official tck ---
3618	>
3619	>	Object resultOf(CompletableFuture<?> f) {
3620	>	try {
3621	>	java.lang.reflect.Field resultField
3622	>	= CompletableFuture.class.getDeclaredField("result");
3623	>	resultField.setAccessible(true);
3624	>	return resultField.get(f);
3625	>	} catch (Throwable t) { throw new AssertionError(t); }
3626	>	}
3627	>
3628	>	public void testExceptionPropagationReusesResultObject() {
3629	>	if (!testImplementationDetails) return;
3630	>	for (ExecutionMode m : ExecutionMode.values())
3631	>	{
3632	>	final CFException ex = new CFException();
3633	>	final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
3634	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3635	>
3636	>	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
3637	>	= new ArrayList<>();
3638	>
3639	>	funs.add((y) -> m.thenRun(y, new Noop(m)));
3640	>	funs.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
3641	>	funs.add((y) -> m.thenApply(y, new IncFunction(m)));
3642	>
3643	>	funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
3644	>	funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
3645	>	funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
3646	>
3647	>	funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
3648	>	funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3649	>	funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
3650	>
3651	>	funs.add((y) -> m.whenComplete(y, (Integer x, Throwable t) -> {}));
3652	>
3653	>	funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
3654	>
3655	>	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
3656	>	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
3657	>
3658	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3659	>	fun : funs) {
3660	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3661	>	f.completeExceptionally(ex);
3662	>	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3663	>	checkCompletedWithWrappedException(src, ex);
3664	>	CompletableFuture<?> dep = fun.apply(src);
3665	>	checkCompletedWithWrappedException(dep, ex);
3666	>	assertSame(resultOf(src), resultOf(dep));
3667	>	}
3668	>
3669	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3670	>	fun : funs) {
3671	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3672	>	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3673	>	CompletableFuture<?> dep = fun.apply(src);
3674	>	f.completeExceptionally(ex);
3675	>	checkCompletedWithWrappedException(src, ex);
3676	>	checkCompletedWithWrappedException(dep, ex);
3677	>	assertSame(resultOf(src), resultOf(dep));
3678	>	}
3679	>
3680	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3681	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3682	>	fun : funs) {
3683	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3684	>	f.cancel(mayInterruptIfRunning);
3685	>	checkCancelled(f);
3686	>	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3687	>	checkCompletedWithWrappedCancellationException(src);
3688	>	CompletableFuture<?> dep = fun.apply(src);
3689	>	checkCompletedWithWrappedCancellationException(dep);
3690	>	assertSame(resultOf(src), resultOf(dep));
3691	>	}
3692	>
3693	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3694	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3695	>	fun : funs) {
3696	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3697	>	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3698	>	CompletableFuture<?> dep = fun.apply(src);
3699	>	f.cancel(mayInterruptIfRunning);
3700	>	checkCancelled(f);
3701	>	checkCompletedWithWrappedCancellationException(src);
3702	>	checkCompletedWithWrappedCancellationException(dep);
3703	>	assertSame(resultOf(src), resultOf(dep));
3704	>	}
3705	>	}}
3706	>
3707	>	/**
3708	>	* Minimal completion stages throw UOE for all non-CompletionStage methods
3709	>	*/
3710	>	public void testMinimalCompletionStage_minimality() {
3711	>	if (!testImplementationDetails) return;
3712	>	Function<Method, String> toSignature =
3713	>	(method) -> method.getName() + Arrays.toString(method.getParameterTypes());
3714	>	Predicate<Method> isNotStatic =
3715	>	(method) -> (method.getModifiers() & Modifier.STATIC) == 0;
3716	>	List<Method> minimalMethods =
3717	>	Stream.of(Object.class, CompletionStage.class)
3718	>	.flatMap((klazz) -> Stream.of(klazz.getMethods()))
3719	>	.filter(isNotStatic)
3720	>	.collect(Collectors.toList());
3721	>	// Methods from CompletableFuture permitted NOT to throw UOE
3722	>	String[] signatureWhitelist = {
3723	>	"newIncompleteFuture[]",
3724	>	"defaultExecutor[]",
3725	>	"minimalCompletionStage[]",
3726	>	"copy[]",
3727	>	};
3728	>	Set<String> permittedMethodSignatures =
3729	>	Stream.concat(minimalMethods.stream().map(toSignature),
3730	>	Stream.of(signatureWhitelist))
3731	>	.collect(Collectors.toSet());
3732	>	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
3733	>	.filter(isNotStatic)
3734	>	.filter((method) -> !permittedMethodSignatures.contains(toSignature.apply(method)))
3735	>	.collect(Collectors.toList());
3736	>
3737	>	CompletionStage<Integer> minimalStage =
3738	>	new CompletableFuture<Integer>().minimalCompletionStage();
3739	>
3740	>	List<Method> bugs = new ArrayList<>();
3741	>	for (Method method : allMethods) {
3742	>	Class<?>[] parameterTypes = method.getParameterTypes();
3743	>	Object[] args = new Object[parameterTypes.length];
3744	>	// Manufacture boxed primitives for primitive params
3745	>	for (int i = 0; i < args.length; i++) {
3746	>	Class<?> type = parameterTypes[i];
3747	>	if (parameterTypes[i] == boolean.class)
3748	>	args[i] = false;
3749	>	else if (parameterTypes[i] == int.class)
3750	>	args[i] = 0;
3751	>	else if (parameterTypes[i] == long.class)
3752	>	args[i] = 0L;
3753	>	}
3754	>	try {
3755	>	method.invoke(minimalStage, args);
3756	>	bugs.add(method);
3757	>	}
3758	>	catch (java.lang.reflect.InvocationTargetException expected) {
3759	>	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
3760	>	bugs.add(method);
3761	>	// expected.getCause().printStackTrace();
3762	>	}
3763	>	}
3764	>	catch (ReflectiveOperationException bad) { throw new Error(bad); }
3765	>	}
3766	>	if (!bugs.isEmpty())
3767	>	throw new Error("Methods did not throw UOE: " + bugs.toString());
3768	>	}
3769	>
3770	>	static class Monad {
3771	>	static class ZeroException extends RuntimeException {
3772	>	public ZeroException() { super("monadic zero"); }
3773	>	}
3774	>	// "return", "unit"
3775	>	static <T> CompletableFuture<T> unit(T value) {
3776	>	return completedFuture(value);
3777	>	}
3778	>	// monadic zero ?
3779	>	static <T> CompletableFuture<T> zero() {
3780	>	return failedFuture(new ZeroException());
3781	>	}
3782	>	// >=>
3783	>	static <T,U,V> Function<T, CompletableFuture<V>> compose
3784	>	(Function<T, CompletableFuture<U>> f,
3785	>	Function<U, CompletableFuture<V>> g) {
3786	>	return (x) -> f.apply(x).thenCompose(g);
3787	>	}
3788	>
3789	>	static void assertZero(CompletableFuture<?> f) {
3790	>	try {
3791	>	f.getNow(null);
3792	>	throw new AssertionFailedError("should throw");
3793	>	} catch (CompletionException success) {
3794	>	assertTrue(success.getCause() instanceof ZeroException);
3795	>	}
3796	>	}
3797	>
3798	>	static <T> void assertFutureEquals(CompletableFuture<T> f,
3799	>	CompletableFuture<T> g) {
3800	>	T fval = null, gval = null;
3801	>	Throwable fex = null, gex = null;
3802	>
3803	>	try { fval = f.get(); }
3804	>	catch (ExecutionException ex) { fex = ex.getCause(); }
3805	>	catch (Throwable ex) { fex = ex; }
3806	>
3807	>	try { gval = g.get(); }
3808	>	catch (ExecutionException ex) { gex = ex.getCause(); }
3809	>	catch (Throwable ex) { gex = ex; }
3810	>
3811	>	if (fex != null || gex != null)
3812	>	assertSame(fex.getClass(), gex.getClass());
3813	>	else
3814	>	assertEquals(fval, gval);
3815	>	}
3816	>
3817	>	static class PlusFuture<T> extends CompletableFuture<T> {
3818	>	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
3819	>	}
3820	>
3821	>	// Monadic "plus"
3822	>	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
3823	>	CompletableFuture<? extends T> g) {
3824	>	PlusFuture<T> plus = new PlusFuture<T>();
3825	>	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
3826	>	if (ex == null) {
3827	>	if (plus.complete(result))
3828	>	if (plus.firstFailure.get() != null)
3829	>	plus.firstFailure.set(null);
3830	>	}
3831	>	else if (plus.firstFailure.compareAndSet(null, ex)) {
3832	>	if (plus.isDone())
3833	>	plus.firstFailure.set(null);
3834	>	}
3835	>	else {
3836	>	// first failure has precedence
3837	>	Throwable first = plus.firstFailure.getAndSet(null);
3838	>
3839	>	// may fail with "Self-suppression not permitted"
3840	>	try { first.addSuppressed(ex); }
3841	>	catch (Exception ignored) {}
3842	>
3843	>	plus.completeExceptionally(first);
3844	>	}
3845	>	};
3846	>	f.whenComplete(action);
3847	>	g.whenComplete(action);
3848	>	return plus;
3849	>	}
3850	>	}
3851	>
3852	>	/**
3853	>	* CompletableFuture is an additive monad - sort of.
3854	>	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
3855	>	*/
3856	>	public void testAdditiveMonad() throws Throwable {
3857	>	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
3858	>	CompletableFuture<Long> zero = Monad.zero();
3859	>
3860	>	// Some mutually non-commutative functions
3861	>	Function<Long, CompletableFuture<Long>> triple
3862	>	= (x) -> Monad.unit(3 * x);
3863	>	Function<Long, CompletableFuture<Long>> inc
3864	>	= (x) -> Monad.unit(x + 1);
3865	>
3866	>	// unit is a right identity: m >>= unit === m
3867	>	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
3868	>	inc.apply(5L));
3869	>	// unit is a left identity: (unit x) >>= f === f x
3870	>	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
3871	>	inc.apply(5L));
3872	>
3873	>	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
3874	>	Monad.assertFutureEquals(
3875	>	unit.apply(5L).thenCompose(inc).thenCompose(triple),
3876	>	unit.apply(5L).thenCompose((x) -> inc.apply(x).thenCompose(triple)));
3877	>
3878	>	// The case for CompletableFuture as an additive monad is weaker...
3879	>
3880	>	// zero is a monadic zero
3881	>	Monad.assertZero(zero);
3882	>
3883	>	// left zero: zero >>= f === zero
3884	>	Monad.assertZero(zero.thenCompose(inc));
3885	>	// right zero: f >>= (\x -> zero) === zero
3886	>	Monad.assertZero(inc.apply(5L).thenCompose((x) -> zero));
3887	>
3888	>	// f plus zero === f
3889	>	Monad.assertFutureEquals(Monad.unit(5L),
3890	>	Monad.plus(Monad.unit(5L), zero));
3891	>	// zero plus f === f
3892	>	Monad.assertFutureEquals(Monad.unit(5L),
3893	>	Monad.plus(zero, Monad.unit(5L)));
3894	>	// zero plus zero === zero
3895	>	Monad.assertZero(Monad.plus(zero, zero));
3896	>	{
3897	>	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
3898	>	Monad.unit(8L));
3899	>	// non-determinism
3900	>	assertTrue(f.get() == 5L || f.get() == 8L);
3901	>	}
3902	>
3903	>	CompletableFuture<Long> godot = new CompletableFuture<>();
3904	>	// f plus godot === f (doesn't wait for godot)
3905	>	Monad.assertFutureEquals(Monad.unit(5L),
3906	>	Monad.plus(Monad.unit(5L), godot));
3907	>	// godot plus f === f (doesn't wait for godot)
3908	>	Monad.assertFutureEquals(Monad.unit(5L),
3909	>	Monad.plus(godot, Monad.unit(5L)));
3910	>	}
3911	>
3912	>	//     static <U> U join(CompletionStage<U> stage) {
3913	>	//         CompletableFuture<U> f = new CompletableFuture<>();
3914	>	//         stage.whenComplete((v, ex) -> {
3915	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
3916	>	//         });
3917	>	//         return f.join();
3918	>	//     }
3919	>
3920	>	//     static <U> boolean isDone(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.isDone();
3926	>	//     }
3927	>
3928	>	//     static <U> U join2(CompletionStage<U> stage) {
3929	>	//         return stage.toCompletableFuture().copy().join();
3930	>	//     }
3931	>
3932	>	//     static <U> boolean isDone2(CompletionStage<U> stage) {
3933	>	//         return stage.toCompletableFuture().copy().isDone();
3934	>	//     }
3935
3936		}

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