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

Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.86 by jsr166, Mon Jun 16 21:04:23 2014 UTC vs.
Revision 1.105 by dl, Thu Sep 3 16:30:05 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	>
11	>	import java.util.ArrayList;
12	>	import java.util.List;
13	>	import java.util.Objects;
14		import java.util.concurrent.Callable;
10	–	import java.util.concurrent.Executor;
11	–	import java.util.concurrent.ExecutorService;
12	–	import java.util.concurrent.Executors;
15		import java.util.concurrent.CancellationException;
14	–	import java.util.concurrent.CountDownLatch;
15	–	import java.util.concurrent.ExecutionException;
16	–	import java.util.concurrent.Future;
16		import java.util.concurrent.CompletableFuture;
17		import java.util.concurrent.CompletionException;
18		import java.util.concurrent.CompletionStage;
19	+	import java.util.concurrent.ExecutionException;
20	+	import java.util.concurrent.Executor;
21		import java.util.concurrent.ForkJoinPool;
22		import java.util.concurrent.ForkJoinTask;
23		import java.util.concurrent.TimeoutException;
24	+	import java.util.concurrent.TimeUnit;
25		import java.util.concurrent.atomic.AtomicInteger;
26	<	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;
26	>	import java.util.concurrent.atomic.AtomicReference;
27		import java.util.function.BiConsumer;
30	–	import java.util.function.Function;
28		import java.util.function.BiFunction;
29	+	import java.util.function.Consumer;
30	+	import java.util.function.Function;
31	+	import java.util.function.Supplier;
32	+
33	+	import junit.framework.Test;
34	+	import junit.framework.TestSuite;
35
36		public class CompletableFutureTest extends JSR166TestCase {
37
38		public static void main(String[] args) {
39	<	junit.textui.TestRunner.run(suite());
39	>	main(suite(), args);
40		}
41		public static Test suite() {
42		return new TestSuite(CompletableFutureTest.class);
#	Line 44 | Line 47 | public class CompletableFutureTest exten
47		void checkIncomplete(CompletableFuture<?> f) {
48		assertFalse(f.isDone());
49		assertFalse(f.isCancelled());
50	<	assertTrue(f.toString().contains("[Not completed]"));
50	>	assertTrue(f.toString().contains("Not completed"));
51		try {
52		assertNull(f.getNow(null));
53		} catch (Throwable fail) { threadUnexpectedException(fail); }
#	Line 57 | Line 60 | public class CompletableFutureTest exten
60		}
61
62		<T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
63	<	try {
64	<	assertEquals(value, f.get(LONG_DELAY_MS, MILLISECONDS));
62	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
63	>	checkTimedGet(f, value);
64	>
65		try {
66		assertEquals(value, f.join());
67		} catch (Throwable fail) { threadUnexpectedException(fail); }
#	Line 76 | Line 78 | public class CompletableFutureTest exten
78		}
79
80		void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
81	+	long startTime = System.nanoTime();
82	+	long timeoutMillis = LONG_DELAY_MS;
83		try {
84	<	f.get(LONG_DELAY_MS, MILLISECONDS);
84	>	f.get(timeoutMillis, MILLISECONDS);
85		shouldThrow();
86		} catch (ExecutionException success) {
87		assertTrue(success.getCause() instanceof CFException);
88		} catch (Throwable fail) { threadUnexpectedException(fail); }
89	+	assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
90	+
91		try {
92		f.join();
93		shouldThrow();
#	Line 107 | Line 113 | public class CompletableFutureTest exten
113
114		<U> void checkCompletedExceptionallyWithRootCause(CompletableFuture<U> f,
115		Throwable ex) {
116	+	long startTime = System.nanoTime();
117	+	long timeoutMillis = LONG_DELAY_MS;
118		try {
119	<	f.get(LONG_DELAY_MS, MILLISECONDS);
119	>	f.get(timeoutMillis, MILLISECONDS);
120		shouldThrow();
121		} catch (ExecutionException success) {
122		assertSame(ex, success.getCause());
123		} catch (Throwable fail) { threadUnexpectedException(fail); }
124	+	assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
125	+
126		try {
127		f.join();
128		shouldThrow();
#	Line 137 | Line 147 | public class CompletableFutureTest exten
147		assertTrue(f.toString().contains("[Completed exceptionally]"));
148		}
149
150	+	<U> void checkCompletedExceptionallyWithTimeout(CompletableFuture<U> f) {
151	+	long startTime = System.nanoTime();
152	+	long timeoutMillis = LONG_DELAY_MS;
153	+	try {
154	+	f.get(timeoutMillis, MILLISECONDS);
155	+	shouldThrow();
156	+	} catch (ExecutionException ex) {
157	+	assertTrue(ex.getCause() instanceof TimeoutException);
158	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
159	+	assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
160	+
161	+	try {
162	+	f.join();
163	+	shouldThrow();
164	+	} catch (Throwable ex) {
165	+	assertTrue(ex.getCause() instanceof TimeoutException);
166	+	}
167	+
168	+	try {
169	+	f.getNow(null);
170	+	shouldThrow();
171	+	} catch (Throwable ex) {
172	+	assertTrue(ex.getCause() instanceof TimeoutException);
173	+	}
174	+
175	+	try {
176	+	f.get();
177	+	shouldThrow();
178	+	} catch (ExecutionException ex) {
179	+	assertTrue(ex.getCause() instanceof TimeoutException);
180	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
181	+
182	+	assertTrue(f.isDone());
183	+	assertFalse(f.isCancelled());
184	+	assertTrue(f.toString().contains("[Completed exceptionally]"));
185	+	}
186	+
187		<U> void checkCompletedWithWrappedException(CompletableFuture<U> f,
188		Throwable ex) {
189		checkCompletedExceptionallyWithRootCause(f, ex);
#	Line 158 | Line 205 | public class CompletableFutureTest exten
205		}
206
207		void checkCancelled(CompletableFuture<?> f) {
208	+	long startTime = System.nanoTime();
209	+	long timeoutMillis = LONG_DELAY_MS;
210		try {
211	<	f.get(LONG_DELAY_MS, MILLISECONDS);
211	>	f.get(timeoutMillis, MILLISECONDS);
212		shouldThrow();
213		} catch (CancellationException success) {
214		} catch (Throwable fail) { threadUnexpectedException(fail); }
215	+	assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
216	+
217		try {
218		f.join();
219		shouldThrow();
#	Line 183 | Line 234 | public class CompletableFutureTest exten
234		}
235
236		void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
237	+	long startTime = System.nanoTime();
238	+	long timeoutMillis = LONG_DELAY_MS;
239		try {
240	<	f.get(LONG_DELAY_MS, MILLISECONDS);
240	>	f.get(timeoutMillis, MILLISECONDS);
241		shouldThrow();
242		} catch (ExecutionException success) {
243		assertTrue(success.getCause() instanceof CancellationException);
244		} catch (Throwable fail) { threadUnexpectedException(fail); }
245	+	assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
246	+
247		try {
248		f.join();
249		shouldThrow();
#	Line 257 | Line 312 | public class CompletableFutureTest exten
312		{
313		CompletableFuture<Integer> f = new CompletableFuture<>();
314		checkIncomplete(f);
315	<	assertTrue(f.cancel(true));
316	<	assertTrue(f.cancel(true));
315	>	assertTrue(f.cancel(mayInterruptIfRunning));
316	>	assertTrue(f.cancel(mayInterruptIfRunning));
317	>	assertTrue(f.cancel(!mayInterruptIfRunning));
318		checkCancelled(f);
319		}}
320
#	Line 530 | Line 586 | public class CompletableFutureTest exten
586		}
587		}
588
533	–
589		class CompletableFutureInc extends CheckedIntegerAction
590		implements Function<Integer, CompletableFuture<Integer>>
591		{
#	Line 569 | Line 624 | public class CompletableFutureTest exten
624		}
625		}
626
627	+	static final boolean defaultExecutorIsCommonPool
628	+	= ForkJoinPool.getCommonPoolParallelism() > 1;
629	+
630		/**
631		* Permits the testing of parallel code for the 3 different
632		* execution modes without copy/pasting all the test methods.
633		*/
634		enum ExecutionMode {
635	<	DEFAULT {
635	>	SYNC {
636		public void checkExecutionMode() {
637		assertFalse(ThreadExecutor.startedCurrentThread());
638		assertNull(ForkJoinTask.getPool());
#	Line 650 | Line 708 | public class CompletableFutureTest exten
708
709		ASYNC {
710		public void checkExecutionMode() {
711	<	assertSame(ForkJoinPool.commonPool(),
712	<	ForkJoinTask.getPool());
711	>	assertEquals(defaultExecutorIsCommonPool,
712	>	(ForkJoinPool.commonPool() == ForkJoinTask.getPool()));
713		}
714		public CompletableFuture<Void> runAsync(Runnable a) {
715		return CompletableFuture.runAsync(a);
#	Line 875 | Line 933 | public class CompletableFutureTest exten
933		if (!createIncomplete) f.completeExceptionally(ex);
934		final CompletableFuture<Integer> g = f.exceptionally
935		((Throwable t) -> {
936	<	ExecutionMode.DEFAULT.checkExecutionMode();
936	>	ExecutionMode.SYNC.checkExecutionMode();
937		threadAssertSame(t, ex);
938		a.getAndIncrement();
939		return v1;
#	Line 888 | Line 946 | public class CompletableFutureTest exten
946
947		public void testExceptionally_exceptionalCompletionActionFailed() {
948		for (boolean createIncomplete : new boolean[] { true, false })
891	–	for (Integer v1 : new Integer[] { 1, null })
949		{
950		final AtomicInteger a = new AtomicInteger(0);
951		final CFException ex1 = new CFException();
#	Line 897 | Line 954 | public class CompletableFutureTest exten
954		if (!createIncomplete) f.completeExceptionally(ex1);
955		final CompletableFuture<Integer> g = f.exceptionally
956		((Throwable t) -> {
957	<	ExecutionMode.DEFAULT.checkExecutionMode();
957	>	ExecutionMode.SYNC.checkExecutionMode();
958		threadAssertSame(t, ex1);
959		a.getAndIncrement();
960		throw ex2;
#	Line 942 | Line 999 | public class CompletableFutureTest exten
999		public void testWhenComplete_exceptionalCompletion() {
1000		for (ExecutionMode m : ExecutionMode.values())
1001		for (boolean createIncomplete : new boolean[] { true, false })
945	–	for (Integer v1 : new Integer[] { 1, null })
1002		{
1003		final AtomicInteger a = new AtomicInteger(0);
1004		final CFException ex = new CFException();
#	Line 1027 | Line 1083 | public class CompletableFutureTest exten
1083		public void testWhenComplete_actionFailedSourceFailed() {
1084		for (boolean createIncomplete : new boolean[] { true, false })
1085		for (ExecutionMode m : ExecutionMode.values())
1030	–	for (Integer v1 : new Integer[] { 1, null })
1086		{
1087		final AtomicInteger a = new AtomicInteger(0);
1088		final CFException ex1 = new CFException();
#	Line 1264 | Line 1319 | public class CompletableFutureTest exten
1319		*/
1320		public void testThenRun_normalCompletion() {
1321		for (ExecutionMode m : ExecutionMode.values())
1267	–	for (boolean createIncomplete : new boolean[] { true, false })
1322		for (Integer v1 : new Integer[] { 1, null })
1323		{
1324		final CompletableFuture<Integer> f = new CompletableFuture<>();
1325	<	final Noop r = new Noop(m);
1326	<	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	<	}
1325	>	final Noop[] rs = new Noop[6];
1326	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1327
1328	<	checkCompletedNormally(g, null);
1328	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1329	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1330	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1331	>	checkIncomplete(h0);
1332	>	checkIncomplete(h1);
1333	>	checkIncomplete(h2);
1334	>	assertTrue(f.complete(v1));
1335	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1336	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1337	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1338	>
1339	>	checkCompletedNormally(h0, null);
1340	>	checkCompletedNormally(h1, null);
1341	>	checkCompletedNormally(h2, null);
1342	>	checkCompletedNormally(h3, null);
1343	>	checkCompletedNormally(h4, null);
1344	>	checkCompletedNormally(h5, null);
1345		checkCompletedNormally(f, v1);
1346	<	r.assertInvoked();
1346	>	for (Noop r : rs) r.assertInvoked();
1347		}}
1348
1349		/**
#	Line 1287 | Line 1352 | public class CompletableFutureTest exten
1352		*/
1353		public void testThenRun_exceptionalCompletion() {
1354		for (ExecutionMode m : ExecutionMode.values())
1290	–	for (boolean createIncomplete : new boolean[] { true, false })
1355		{
1356		final CFException ex = new CFException();
1357		final CompletableFuture<Integer> f = new CompletableFuture<>();
1358	<	final Noop r = new Noop(m);
1359	<	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	<	}
1358	>	final Noop[] rs = new Noop[6];
1359	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1360
1361	<	checkCompletedWithWrappedException(g, ex);
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	>	checkIncomplete(h0);
1365	>	checkIncomplete(h1);
1366	>	checkIncomplete(h2);
1367	>	assertTrue(f.completeExceptionally(ex));
1368	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1369	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1370	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1371	>
1372	>	checkCompletedWithWrappedException(h0, ex);
1373	>	checkCompletedWithWrappedException(h1, ex);
1374	>	checkCompletedWithWrappedException(h2, ex);
1375	>	checkCompletedWithWrappedException(h3, ex);
1376	>	checkCompletedWithWrappedException(h4, ex);
1377	>	checkCompletedWithWrappedException(h5, ex);
1378		checkCompletedExceptionally(f, ex);
1379	<	r.assertNotInvoked();
1379	>	for (Noop r : rs) r.assertNotInvoked();
1380		}}
1381
1382		/**
#	Line 1309 | Line 1384 | public class CompletableFutureTest exten
1384		*/
1385		public void testThenRun_sourceCancelled() {
1386		for (ExecutionMode m : ExecutionMode.values())
1312	–	for (boolean createIncomplete : new boolean[] { true, false })
1387		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1388		{
1389		final CompletableFuture<Integer> f = new CompletableFuture<>();
1390	<	final Noop r = new Noop(m);
1391	<	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	<	}
1390	>	final Noop[] rs = new Noop[6];
1391	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1392
1393	<	checkCompletedWithWrappedCancellationException(g);
1393	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1394	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1395	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1396	>	checkIncomplete(h0);
1397	>	checkIncomplete(h1);
1398	>	checkIncomplete(h2);
1399	>	assertTrue(f.cancel(mayInterruptIfRunning));
1400	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1401	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1402	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1403	>
1404	>	checkCompletedWithWrappedCancellationException(h0);
1405	>	checkCompletedWithWrappedCancellationException(h1);
1406	>	checkCompletedWithWrappedCancellationException(h2);
1407	>	checkCompletedWithWrappedCancellationException(h3);
1408	>	checkCompletedWithWrappedCancellationException(h4);
1409	>	checkCompletedWithWrappedCancellationException(h5);
1410		checkCancelled(f);
1411	<	r.assertNotInvoked();
1411	>	for (Noop r : rs) r.assertNotInvoked();
1412		}}
1413
1414		/**
#	Line 1331 | Line 1416 | public class CompletableFutureTest exten
1416		*/
1417		public void testThenRun_actionFailed() {
1418		for (ExecutionMode m : ExecutionMode.values())
1334	–	for (boolean createIncomplete : new boolean[] { true, false })
1419		for (Integer v1 : new Integer[] { 1, null })
1420		{
1421		final CompletableFuture<Integer> f = new CompletableFuture<>();
1422	<	final FailingRunnable r = new FailingRunnable(m);
1423	<	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	<	}
1422	>	final FailingRunnable[] rs = new FailingRunnable[6];
1423	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1424
1425	<	checkCompletedWithWrappedCFException(g);
1425	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1426	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1427	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1428	>	assertTrue(f.complete(v1));
1429	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1430	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1431	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1432	>
1433	>	checkCompletedWithWrappedCFException(h0);
1434	>	checkCompletedWithWrappedCFException(h1);
1435	>	checkCompletedWithWrappedCFException(h2);
1436	>	checkCompletedWithWrappedCFException(h3);
1437	>	checkCompletedWithWrappedCFException(h4);
1438	>	checkCompletedWithWrappedCFException(h5);
1439		checkCompletedNormally(f, v1);
1440		}}
1441
#	Line 1352 | Line 1444 | public class CompletableFutureTest exten
1444		*/
1445		public void testThenApply_normalCompletion() {
1446		for (ExecutionMode m : ExecutionMode.values())
1355	–	for (boolean createIncomplete : new boolean[] { true, false })
1447		for (Integer v1 : new Integer[] { 1, null })
1448		{
1449		final CompletableFuture<Integer> f = new CompletableFuture<>();
1450	<	final IncFunction r = new IncFunction(m);
1451	<	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	<	}
1450	>	final IncFunction[] rs = new IncFunction[4];
1451	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1452
1453	<	checkCompletedNormally(g, inc(v1));
1453	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1454	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1455	>	checkIncomplete(h0);
1456	>	checkIncomplete(h1);
1457	>	assertTrue(f.complete(v1));
1458	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1459	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1460	>
1461	>	checkCompletedNormally(h0, inc(v1));
1462	>	checkCompletedNormally(h1, inc(v1));
1463	>	checkCompletedNormally(h2, inc(v1));
1464	>	checkCompletedNormally(h3, inc(v1));
1465		checkCompletedNormally(f, v1);
1466	<	r.assertValue(inc(v1));
1466	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1467		}}
1468
1469		/**
#	Line 1375 | Line 1472 | public class CompletableFutureTest exten
1472		*/
1473		public void testThenApply_exceptionalCompletion() {
1474		for (ExecutionMode m : ExecutionMode.values())
1378	–	for (boolean createIncomplete : new boolean[] { true, false })
1475		{
1476		final CFException ex = new CFException();
1477		final CompletableFuture<Integer> f = new CompletableFuture<>();
1478	<	final IncFunction r = new IncFunction(m);
1479	<	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	<	}
1478	>	final IncFunction[] rs = new IncFunction[4];
1479	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1480
1481	<	checkCompletedWithWrappedException(g, ex);
1481	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1482	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1483	>	assertTrue(f.completeExceptionally(ex));
1484	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1485	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1486	>
1487	>	checkCompletedWithWrappedException(h0, ex);
1488	>	checkCompletedWithWrappedException(h1, ex);
1489	>	checkCompletedWithWrappedException(h2, ex);
1490	>	checkCompletedWithWrappedException(h3, ex);
1491		checkCompletedExceptionally(f, ex);
1492	<	r.assertNotInvoked();
1492	>	for (IncFunction r : rs) r.assertNotInvoked();
1493		}}
1494
1495		/**
#	Line 1397 | Line 1497 | public class CompletableFutureTest exten
1497		*/
1498		public void testThenApply_sourceCancelled() {
1499		for (ExecutionMode m : ExecutionMode.values())
1400	–	for (boolean createIncomplete : new boolean[] { true, false })
1500		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1501		{
1502		final CompletableFuture<Integer> f = new CompletableFuture<>();
1503	<	final IncFunction r = new IncFunction(m);
1504	<	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	<	}
1503	>	final IncFunction[] rs = new IncFunction[4];
1504	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1505
1506	<	checkCompletedWithWrappedCancellationException(g);
1506	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1507	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1508	>	assertTrue(f.cancel(mayInterruptIfRunning));
1509	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1510	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1511	>
1512	>	checkCompletedWithWrappedCancellationException(h0);
1513	>	checkCompletedWithWrappedCancellationException(h1);
1514	>	checkCompletedWithWrappedCancellationException(h2);
1515	>	checkCompletedWithWrappedCancellationException(h3);
1516		checkCancelled(f);
1517	<	r.assertNotInvoked();
1517	>	for (IncFunction r : rs) r.assertNotInvoked();
1518		}}
1519
1520		/**
#	Line 1419 | Line 1522 | public class CompletableFutureTest exten
1522		*/
1523		public void testThenApply_actionFailed() {
1524		for (ExecutionMode m : ExecutionMode.values())
1422	–	for (boolean createIncomplete : new boolean[] { true, false })
1525		for (Integer v1 : new Integer[] { 1, null })
1526		{
1527		final CompletableFuture<Integer> f = new CompletableFuture<>();
1528	<	final FailingFunction r = new FailingFunction(m);
1529	<	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	<	}
1528	>	final FailingFunction[] rs = new FailingFunction[4];
1529	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1530
1531	<	checkCompletedWithWrappedCFException(g);
1531	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1532	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1533	>	assertTrue(f.complete(v1));
1534	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1535	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1536	>
1537	>	checkCompletedWithWrappedCFException(h0);
1538	>	checkCompletedWithWrappedCFException(h1);
1539	>	checkCompletedWithWrappedCFException(h2);
1540	>	checkCompletedWithWrappedCFException(h3);
1541		checkCompletedNormally(f, v1);
1542		}}
1543
#	Line 1440 | Line 1546 | public class CompletableFutureTest exten
1546		*/
1547		public void testThenAccept_normalCompletion() {
1548		for (ExecutionMode m : ExecutionMode.values())
1443	–	for (boolean createIncomplete : new boolean[] { true, false })
1549		for (Integer v1 : new Integer[] { 1, null })
1550		{
1551		final CompletableFuture<Integer> f = new CompletableFuture<>();
1552	<	final NoopConsumer r = new NoopConsumer(m);
1553	<	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	<	}
1552	>	final NoopConsumer[] rs = new NoopConsumer[4];
1553	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1554
1555	<	checkCompletedNormally(g, null);
1556	<	r.assertValue(v1);
1555	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1556	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1557	>	checkIncomplete(h0);
1558	>	checkIncomplete(h1);
1559	>	assertTrue(f.complete(v1));
1560	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1561	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1562	>
1563	>	checkCompletedNormally(h0, null);
1564	>	checkCompletedNormally(h1, null);
1565	>	checkCompletedNormally(h2, null);
1566	>	checkCompletedNormally(h3, null);
1567		checkCompletedNormally(f, v1);
1568	+	for (NoopConsumer r : rs) r.assertValue(v1);
1569		}}
1570
1571		/**
#	Line 1463 | Line 1574 | public class CompletableFutureTest exten
1574		*/
1575		public void testThenAccept_exceptionalCompletion() {
1576		for (ExecutionMode m : ExecutionMode.values())
1466	–	for (boolean createIncomplete : new boolean[] { true, false })
1577		{
1578		final CFException ex = new CFException();
1579		final CompletableFuture<Integer> f = new CompletableFuture<>();
1580	<	final NoopConsumer r = new NoopConsumer(m);
1581	<	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	<	}
1580	>	final NoopConsumer[] rs = new NoopConsumer[4];
1581	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1582
1583	<	checkCompletedWithWrappedException(g, ex);
1583	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1584	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1585	>	assertTrue(f.completeExceptionally(ex));
1586	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1587	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1588	>
1589	>	checkCompletedWithWrappedException(h0, ex);
1590	>	checkCompletedWithWrappedException(h1, ex);
1591	>	checkCompletedWithWrappedException(h2, ex);
1592	>	checkCompletedWithWrappedException(h3, ex);
1593		checkCompletedExceptionally(f, ex);
1594	<	r.assertNotInvoked();
1594	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1595		}}
1596
1597		/**
#	Line 1485 | Line 1599 | public class CompletableFutureTest exten
1599		*/
1600		public void testThenAccept_sourceCancelled() {
1601		for (ExecutionMode m : ExecutionMode.values())
1488	–	for (boolean createIncomplete : new boolean[] { true, false })
1602		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1603		{
1604		final CompletableFuture<Integer> f = new CompletableFuture<>();
1605	<	final NoopConsumer r = new NoopConsumer(m);
1606	<	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	<	}
1605	>	final NoopConsumer[] rs = new NoopConsumer[4];
1606	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1607
1608	<	checkCompletedWithWrappedCancellationException(g);
1608	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1609	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1610	>	assertTrue(f.cancel(mayInterruptIfRunning));
1611	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1612	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1613	>
1614	>	checkCompletedWithWrappedCancellationException(h0);
1615	>	checkCompletedWithWrappedCancellationException(h1);
1616	>	checkCompletedWithWrappedCancellationException(h2);
1617	>	checkCompletedWithWrappedCancellationException(h3);
1618		checkCancelled(f);
1619	<	r.assertNotInvoked();
1619	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1620		}}
1621
1622		/**
#	Line 1507 | Line 1624 | public class CompletableFutureTest exten
1624		*/
1625		public void testThenAccept_actionFailed() {
1626		for (ExecutionMode m : ExecutionMode.values())
1510	–	for (boolean createIncomplete : new boolean[] { true, false })
1627		for (Integer v1 : new Integer[] { 1, null })
1628		{
1629		final CompletableFuture<Integer> f = new CompletableFuture<>();
1630	<	final FailingConsumer r = new FailingConsumer(m);
1631	<	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	<	}
1630	>	final FailingConsumer[] rs = new FailingConsumer[4];
1631	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1632
1633	<	checkCompletedWithWrappedCFException(g);
1633	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1634	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1635	>	assertTrue(f.complete(v1));
1636	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1637	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1638	>
1639	>	checkCompletedWithWrappedCFException(h0);
1640	>	checkCompletedWithWrappedCFException(h1);
1641	>	checkCompletedWithWrappedCFException(h2);
1642	>	checkCompletedWithWrappedCFException(h3);
1643		checkCompletedNormally(f, v1);
1644		}}
1645
#	Line 1535 | Line 1655 | public class CompletableFutureTest exten
1655		{
1656		final CompletableFuture<Integer> f = new CompletableFuture<>();
1657		final CompletableFuture<Integer> g = new CompletableFuture<>();
1658	<	final SubtractFunction r1 = new SubtractFunction(m);
1659	<	final SubtractFunction r2 = new SubtractFunction(m);
1540	<	final SubtractFunction r3 = new SubtractFunction(m);
1658	>	final SubtractFunction[] rs = new SubtractFunction[6];
1659	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1660
1661		final CompletableFuture<Integer> fst =  fFirst ? f : g;
1662		final CompletableFuture<Integer> snd = !fFirst ? f : g;
1663		final Integer w1 =  fFirst ? v1 : v2;
1664		final Integer w2 = !fFirst ? v1 : v2;
1665
1666	<	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1666	>	final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1667	>	final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1668		assertTrue(fst.complete(w1));
1669	<	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1670	<	checkIncomplete(h1);
1671	<	checkIncomplete(h2);
1672	<	r1.assertNotInvoked();
1673	<	r2.assertNotInvoked();
1669	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1670	>	final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1671	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1672	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1673	>	checkCompletedNormally(h1, subtract(w1, w1));
1674	>	checkCompletedNormally(h3, subtract(w1, w1));
1675	>	rs[1].assertValue(subtract(w1, w1));
1676	>	rs[3].assertValue(subtract(w1, w1));
1677		assertTrue(snd.complete(w2));
1678	<	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1678	>	final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1679
1680	<	checkCompletedNormally(h1, subtract(v1, v2));
1680	>	checkCompletedNormally(h0, subtract(v1, v2));
1681		checkCompletedNormally(h2, subtract(v1, v2));
1682	<	checkCompletedNormally(h3, subtract(v1, v2));
1683	<	r1.assertValue(subtract(v1, v2));
1684	<	r2.assertValue(subtract(v1, v2));
1685	<	r3.assertValue(subtract(v1, v2));
1682	>	checkCompletedNormally(h4, subtract(v1, v2));
1683	>	rs[0].assertValue(subtract(v1, v2));
1684	>	rs[2].assertValue(subtract(v1, v2));
1685	>	rs[4].assertValue(subtract(v1, v2));
1686	>
1687		checkCompletedNormally(f, v1);
1688		checkCompletedNormally(g, v2);
1689		}}
#	Line 2906 | Line 3030 | public class CompletableFutureTest exten
3030		checkCancelled(f);
3031		}}
3032
3033	+	/**
3034	+	* thenCompose result completes exceptionally if the result of the action does
3035	+	*/
3036	+	public void testThenCompose_actionReturnsFailingFuture() {
3037	+	for (ExecutionMode m : ExecutionMode.values())
3038	+	for (int order = 0; order < 6; order++)
3039	+	for (Integer v1 : new Integer[] { 1, null })
3040	+	{
3041	+	final CFException ex = new CFException();
3042	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3043	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
3044	+	final CompletableFuture<Integer> h;
3045	+	// Test all permutations of orders
3046	+	switch (order) {
3047	+	case 0:
3048	+	assertTrue(f.complete(v1));
3049	+	assertTrue(g.completeExceptionally(ex));
3050	+	h = m.thenCompose(f, (x -> g));
3051	+	break;
3052	+	case 1:
3053	+	assertTrue(f.complete(v1));
3054	+	h = m.thenCompose(f, (x -> g));
3055	+	assertTrue(g.completeExceptionally(ex));
3056	+	break;
3057	+	case 2:
3058	+	assertTrue(g.completeExceptionally(ex));
3059	+	assertTrue(f.complete(v1));
3060	+	h = m.thenCompose(f, (x -> g));
3061	+	break;
3062	+	case 3:
3063	+	assertTrue(g.completeExceptionally(ex));
3064	+	h = m.thenCompose(f, (x -> g));
3065	+	assertTrue(f.complete(v1));
3066	+	break;
3067	+	case 4:
3068	+	h = m.thenCompose(f, (x -> g));
3069	+	assertTrue(f.complete(v1));
3070	+	assertTrue(g.completeExceptionally(ex));
3071	+	break;
3072	+	case 5:
3073	+	h = m.thenCompose(f, (x -> g));
3074	+	assertTrue(f.complete(v1));
3075	+	assertTrue(g.completeExceptionally(ex));
3076	+	break;
3077	+	default: throw new AssertionError();
3078	+	}
3079	+
3080	+	checkCompletedExceptionally(g, ex);
3081	+	checkCompletedWithWrappedException(h, ex);
3082	+	checkCompletedNormally(f, v1);
3083	+	}}
3084	+
3085		// other static methods
3086
3087		/**
#	Line 2922 | Line 3098 | public class CompletableFutureTest exten
3098		* when all components complete normally
3099		*/
3100		public void testAllOf_normal() throws Exception {
3101	<	for (int k = 1; k < 20; k++) {
3101	>	for (int k = 1; k < 10; k++) {
3102		CompletableFuture<Integer>[] fs
3103		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3104		for (int i = 0; i < k; i++)
#	Line 2939 | Line 3115 | public class CompletableFutureTest exten
3115		}
3116
3117		public void testAllOf_backwards() throws Exception {
3118	<	for (int k = 1; k < 20; k++) {
3118	>	for (int k = 1; k < 10; k++) {
3119		CompletableFuture<Integer>[] fs
3120		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3121		for (int i = 0; i < k; i++)
#	Line 2955 | Line 3131 | public class CompletableFutureTest exten
3131		}
3132		}
3133
3134	+	public void testAllOf_exceptional() throws Exception {
3135	+	for (int k = 1; k < 10; k++) {
3136	+	CompletableFuture<Integer>[] fs
3137	+	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3138	+	CFException ex = new CFException();
3139	+	for (int i = 0; i < k; i++)
3140	+	fs[i] = new CompletableFuture<>();
3141	+	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3142	+	for (int i = 0; i < k; i++) {
3143	+	checkIncomplete(f);
3144	+	checkIncomplete(CompletableFuture.allOf(fs));
3145	+	if (i != k/2) {
3146	+	fs[i].complete(i);
3147	+	checkCompletedNormally(fs[i], i);
3148	+	} else {
3149	+	fs[i].completeExceptionally(ex);
3150	+	checkCompletedExceptionally(fs[i], ex);
3151	+	}
3152	+	}
3153	+	checkCompletedWithWrappedException(f, ex);
3154	+	checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3155	+	}
3156	+	}
3157	+
3158		/**
3159		* anyOf(no component futures) returns an incomplete future
3160		*/
#	Line 3009 | Line 3209 | public class CompletableFutureTest exten
3209		public void testAnyOf_exceptional() throws Exception {
3210		for (int k = 0; k < 10; k++) {
3211		CompletableFuture[] fs = new CompletableFuture[k];
3212	<	for (int i = 0; i < k; i++)
3212	>	CFException[] exs = new CFException[k];
3213	>	for (int i = 0; i < k; i++) {
3214		fs[i] = new CompletableFuture<>();
3215	+	exs[i] = new CFException();
3216	+	}
3217		CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3218		checkIncomplete(f);
3219		for (int i = 0; i < k; i++) {
3220	<	fs[i].completeExceptionally(new CFException());
3221	<	checkCompletedWithWrappedCFException(f);
3220	>	fs[i].completeExceptionally(exs[i]);
3221	>	checkCompletedWithWrappedException(f, exs[0]);
3222	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3223	>	}
3224	>	}
3225	>	}
3226	>
3227	>	public void testAnyOf_exceptional_backwards() throws Exception {
3228	>	for (int k = 0; k < 10; k++) {
3229	>	CompletableFuture[] fs = new CompletableFuture[k];
3230	>	CFException[] exs = new CFException[k];
3231	>	for (int i = 0; i < k; i++) {
3232	>	fs[i] = new CompletableFuture<>();
3233	>	exs[i] = new CFException();
3234	>	}
3235	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3236	>	checkIncomplete(f);
3237	>	for (int i = k - 1; i >= 0; i--) {
3238	>	fs[i].completeExceptionally(exs[i]);
3239	>	checkCompletedWithWrappedException(f, exs[k - 1]);
3240		checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3241		}
3242		}
#	Line 3028 | Line 3249 | public class CompletableFutureTest exten
3249		CompletableFuture<Integer> f = new CompletableFuture<>();
3250		CompletableFuture<Integer> g = new CompletableFuture<>();
3251		CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
3031	–	CompletableFuture<?> h;
3252		ThreadExecutor exec = new ThreadExecutor();
3253
3254		Runnable[] throwingActions = {
3255		() -> CompletableFuture.supplyAsync(null),
3256		() -> CompletableFuture.supplyAsync(null, exec),
3257	<	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.DEFAULT, 42), null),
3257	>	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3258
3259		() -> CompletableFuture.runAsync(null),
3260		() -> CompletableFuture.runAsync(null, exec),
#	Line 3113 | Line 3333 | public class CompletableFutureTest exten
3333		() -> f.exceptionally(null),
3334
3335		() -> f.handle(null),
3116	–
3336		() -> CompletableFuture.allOf((CompletableFuture<?>)null),
3337		() -> CompletableFuture.allOf((CompletableFuture<?>[])null),
3338		() -> CompletableFuture.allOf(f, null),
#	Line 3139 | Line 3358 | public class CompletableFutureTest exten
3358		assertSame(f, f.toCompletableFuture());
3359		}
3360
3361	+	// jdk9
3362	+
3363	+	/**
3364	+	* newIncompleteFuture returns an incomplete CompletableFuture
3365	+	*/
3366	+	public void testNewIncompleteFuture() {
3367	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3368	+	CompletableFuture<Integer> g = f.newIncompleteFuture();
3369	+	checkIncomplete(f);
3370	+	checkIncomplete(g);
3371	+	}
3372	+
3373	+	/**
3374	+	* completedStage returns a completed CompletionStage
3375	+	*/
3376	+	public void testCompletedStage() {
3377	+	AtomicInteger x = new AtomicInteger();
3378	+	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3379	+	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3380	+	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3381	+	assertEquals(x.get(), 1);
3382	+	assertNull(r.get());
3383	+	}
3384	+
3385	+	/**
3386	+	* defaultExecutor by default returns the commonPool if
3387	+	* it supports at least one thread.
3388	+	*/
3389	+	public void testDefaultExecutor() {
3390	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3391	+	Executor e = f.defaultExecutor();
3392	+	Executor c =  ForkJoinPool.commonPool();
3393	+	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3394	+	assertSame(e, c);
3395	+	}
3396	+
3397	+	/**
3398	+	* failedFuture returns a CompletableFuture completed
3399	+	* exceptionally with the given Exception
3400	+	*/
3401	+	public void testFailedFuture() {
3402	+	CFException ex = new CFException();
3403	+	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3404	+	checkCompletedExceptionallyWithRootCause(f, ex);
3405	+	}
3406	+
3407	+	/**
3408	+	* failedFuture(null) throws NPE
3409	+	*/
3410	+	public void testFailedFuture2() {
3411	+	try {
3412	+	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3413	+	shouldThrow();
3414	+	} catch (NullPointerException success) {}
3415	+	}
3416	+
3417	+	/**
3418	+	* copy returns a CompletableFuture that is completed normally,
3419	+	* with the same value, when source is.
3420	+	*/
3421	+	public void testCopy() {
3422	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3423	+	CompletableFuture<Integer> g = f.copy();
3424	+	checkIncomplete(f);
3425	+	checkIncomplete(g);
3426	+	f.complete(1);
3427	+	checkCompletedNormally(f, 1);
3428	+	checkCompletedNormally(g, 1);
3429	+	}
3430	+
3431	+	/**
3432	+	* copy returns a CompletableFuture that is completed exceptionally
3433	+	* when source is.
3434	+	*/
3435	+	public void testCopy2() {
3436	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3437	+	CompletableFuture<Integer> g = f.copy();
3438	+	checkIncomplete(f);
3439	+	checkIncomplete(g);
3440	+	CFException ex = new CFException();
3441	+	f.completeExceptionally(ex);
3442	+	checkCompletedExceptionally(f, ex);
3443	+	checkCompletedWithWrappedCFException(g);
3444	+	}
3445	+
3446	+	/**
3447	+	* minimalCompletionStage returns a CompletableFuture that is
3448	+	* completed normally, with the same value, when source is.
3449	+	*/
3450	+	public void testMinimalCompletionStage() {
3451	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3452	+	CompletionStage<Integer> g = f.minimalCompletionStage();
3453	+	AtomicInteger x = new AtomicInteger();
3454	+	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3455	+	checkIncomplete(f);
3456	+	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3457	+	f.complete(1);
3458	+	checkCompletedNormally(f, 1);
3459	+	assertEquals(x.get(), 1);
3460	+	assertNull(r.get());
3461	+	}
3462	+
3463	+	/**
3464	+	* minimalCompletionStage returns a CompletableFuture that is
3465	+	* completed exceptionally when source is.
3466	+	*/
3467	+	public void testMinimalCompletionStage2() {
3468	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3469	+	CompletionStage<Integer> g = f.minimalCompletionStage();
3470	+	AtomicInteger x = new AtomicInteger();
3471	+	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3472	+	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3473	+	checkIncomplete(f);
3474	+	CFException ex = new CFException();
3475	+	f.completeExceptionally(ex);
3476	+	checkCompletedExceptionally(f, ex);
3477	+	assertEquals(x.get(), 0);
3478	+	assertEquals(r.get().getCause(), ex);
3479	+	}
3480	+
3481	+	/**
3482	+	* failedStage returns a Completionstage completed
3483	+	* exceptionally with the given Exception
3484	+	*/
3485	+	public void testFailedStage() {
3486	+	CFException ex = new CFException();
3487	+	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3488	+	AtomicInteger x = new AtomicInteger();
3489	+	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3490	+	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3491	+	assertEquals(x.get(), 0);
3492	+	assertEquals(r.get().getCause(), ex);
3493	+	}
3494	+
3495	+	/**
3496	+	* completeAsync completes with value of given supplier
3497	+	*/
3498	+	public void testCompleteAsync() {
3499	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3500	+	f.completeAsync(() -> 1);
3501	+	f.join();
3502	+	checkCompletedNormally(f, 1);
3503	+	}
3504	+
3505	+	/**
3506	+	* completeAsync completes exceptionally if given supplier throws
3507	+	*/
3508	+	public void testCompleteAsync2() {
3509	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3510	+	CFException ex = new CFException();
3511	+	f.completeAsync(() -> {if (true) throw ex; return 1;});
3512	+	try {
3513	+	f.join();
3514	+	shouldThrow();
3515	+	} catch (Exception success) {}
3516	+	checkCompletedWithWrappedCFException(f);
3517	+	}
3518	+
3519	+	/**
3520	+	* completeAsync with given executor completes with value of given supplier
3521	+	*/
3522	+	public void testCompleteAsync3() {
3523	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3524	+	f.completeAsync(() -> 1, new ThreadExecutor());
3525	+	f.join();
3526	+	checkCompletedNormally(f, 1);
3527	+	}
3528	+
3529	+	/**
3530	+	* completeAsync with given executor completes exceptionally if
3531	+	* given supplier throws
3532	+	*/
3533	+	public void testCompleteAsync4() {
3534	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3535	+	CFException ex = new CFException();
3536	+	f.completeAsync(() -> {if (true) throw ex; return 1;}, new ThreadExecutor());
3537	+	try {
3538	+	f.join();
3539	+	shouldThrow();
3540	+	} catch (Exception success) {}
3541	+	checkCompletedWithWrappedCFException(f);
3542	+	}
3543	+
3544	+	/**
3545	+	*  orTimeout completes with TimeoutException if not complete
3546	+	*/
3547	+	public void testOrTimeout() {
3548	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3549	+	f.orTimeout(SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
3550	+	checkCompletedExceptionallyWithTimeout(f);
3551	+	}
3552	+
3553	+	/**
3554	+	*  orTimeout completes normally if completed before timeout
3555	+	*/
3556	+	public void testOrTimeout2() {
3557	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3558	+	f.complete(1);
3559	+	f.orTimeout(SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
3560	+	checkCompletedNormally(f, 1);
3561	+	}
3562	+
3563	+	/**
3564	+	*  completeOnTimeout completes with given value if not complete
3565	+	*/
3566	+	public void testCompleteOnTimeout() {
3567	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3568	+	f.completeOnTimeout(-1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
3569	+	f.join();
3570	+	checkCompletedNormally(f, -1);
3571	+	}
3572	+
3573	+	/**
3574	+	*  completeOnTimeout has no effect if completed within timeout
3575	+	*/
3576	+	public void testCompleteOnTimeout2() {
3577	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3578	+	f.complete(1);
3579	+	f.completeOnTimeout(-1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
3580	+	checkCompletedNormally(f, 1);
3581	+	}
3582	+
3583	+	/**
3584	+	* delayedExecutor returns an executor that delays submission
3585	+	*/
3586	+	public void testDelayedExecutor() {
3587	+	long timeoutMillis = SMALL_DELAY_MS;
3588	+	Executor d = CompletableFuture.delayedExecutor(timeoutMillis,
3589	+	MILLISECONDS);
3590	+	long startTime = System.nanoTime();
3591	+	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(() -> 1, d);
3592	+	assertNull(f.getNow(null));
3593	+	try {
3594	+	f.get(LONG_DELAY_MS, MILLISECONDS);
3595	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
3596	+	assertTrue(millisElapsedSince(startTime) > timeoutMillis/2);
3597	+	checkCompletedNormally(f, 1);
3598	+	}
3599	+
3600	+	/**
3601	+	* delayedExecutor for a given executor returns an executor that
3602	+	* delays submission
3603	+	*/
3604	+	public void testDelayedExecutor2() {
3605	+	long timeoutMillis = SMALL_DELAY_MS;
3606	+	Executor d = CompletableFuture.delayedExecutor(timeoutMillis,
3607	+	MILLISECONDS,
3608	+	new ThreadExecutor());
3609	+	long startTime = System.nanoTime();
3610	+	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(() -> 1, d);
3611	+	assertNull(f.getNow(null));
3612	+	try {
3613	+	f.get(LONG_DELAY_MS, MILLISECONDS);
3614	+	} catch (Throwable fail) { threadUnexpectedException(fail); }
3615	+	assertTrue(millisElapsedSince(startTime) > timeoutMillis/2);
3616	+	checkCompletedNormally(f, 1);
3617	+	}
3618	+
3619		//--- tests of implementation details; not part of official tck ---
3620
3621		Object resultOf(CompletableFuture<?> f) {
#	Line 3158 | Line 3635 | public class CompletableFutureTest exten
3635		final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
3636		final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3637
3638	<	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> dependentFactories
3638	>	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
3639		= new ArrayList<>();
3640
3641	<	dependentFactories.add((y) -> m.thenRun(y, new Noop(m)));
3642	<	dependentFactories.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
3643	<	dependentFactories.add((y) -> m.thenApply(y, new IncFunction(m)));
3641	>	funs.add((y) -> m.thenRun(y, new Noop(m)));
3642	>	funs.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
3643	>	funs.add((y) -> m.thenApply(y, new IncFunction(m)));
3644
3645	<	dependentFactories.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
3646	<	dependentFactories.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
3647	<	dependentFactories.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
3645	>	funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
3646	>	funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
3647	>	funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
3648
3649	<	dependentFactories.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
3650	<	dependentFactories.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3651	<	dependentFactories.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
3649	>	funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
3650	>	funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3651	>	funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
3652
3653	<	dependentFactories.add((y) -> m.whenComplete(y, (Integer x, Throwable t) -> {}));
3653	>	funs.add((y) -> m.whenComplete(y, (Integer x, Throwable t) -> {}));
3654
3655	<	dependentFactories.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
3655	>	funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
3656
3657	<	dependentFactories.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
3658	<	dependentFactories.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
3657	>	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
3658	>	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
3659
3660		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3661	<	dependentFactory : dependentFactories) {
3661	>	fun : funs) {
3662		CompletableFuture<Integer> f = new CompletableFuture<>();
3663		f.completeExceptionally(ex);
3664		CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3665		checkCompletedWithWrappedException(src, ex);
3666	<	CompletableFuture<?> dep = dependentFactory.apply(src);
3666	>	CompletableFuture<?> dep = fun.apply(src);
3667		checkCompletedWithWrappedException(dep, ex);
3668		assertSame(resultOf(src), resultOf(dep));
3669		}
3670
3671		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3672	<	dependentFactory : dependentFactories) {
3672	>	fun : funs) {
3673		CompletableFuture<Integer> f = new CompletableFuture<>();
3674		CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3675	<	CompletableFuture<?> dep = dependentFactory.apply(src);
3675	>	CompletableFuture<?> dep = fun.apply(src);
3676		f.completeExceptionally(ex);
3677		checkCompletedWithWrappedException(src, ex);
3678		checkCompletedWithWrappedException(dep, ex);
#	Line 3204 | Line 3681 | public class CompletableFutureTest exten
3681
3682		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3683		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3684	<	dependentFactory : dependentFactories) {
3684	>	fun : funs) {
3685		CompletableFuture<Integer> f = new CompletableFuture<>();
3686		f.cancel(mayInterruptIfRunning);
3687		checkCancelled(f);
3688		CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3689		checkCompletedWithWrappedCancellationException(src);
3690	<	CompletableFuture<?> dep = dependentFactory.apply(src);
3690	>	CompletableFuture<?> dep = fun.apply(src);
3691		checkCompletedWithWrappedCancellationException(dep);
3692		assertSame(resultOf(src), resultOf(dep));
3693		}
3694
3695		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3696		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3697	<	dependentFactory : dependentFactories) {
3697	>	fun : funs) {
3698		CompletableFuture<Integer> f = new CompletableFuture<>();
3699		CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
3700	<	CompletableFuture<?> dep = dependentFactory.apply(src);
3700	>	CompletableFuture<?> dep = fun.apply(src);
3701		f.cancel(mayInterruptIfRunning);
3702		checkCancelled(f);
3703		checkCompletedWithWrappedCancellationException(src);

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