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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.96 by jsr166, Sat Nov 1 14:50:26 2014 UTC vs.
Revision 1.204 by jsr166, Sun Sep 23 00:52:18 2018 UTC

#	Line 5 | Line 5
5		* http://creativecommons.org/publicdomain/zero/1.0/
6		*/
7
8	<	import junit.framework.*;
8	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
9	>	import static java.util.concurrent.TimeUnit.SECONDS;
10	>	import static java.util.concurrent.CompletableFuture.completedFuture;
11	>	import static java.util.concurrent.CompletableFuture.failedFuture;
12	>
13	>	import java.lang.reflect.Method;
14	>	import java.lang.reflect.Modifier;
15	>
16	>	import java.util.stream.Collectors;
17	>	import java.util.stream.Stream;
18	>
19	>	import java.util.ArrayList;
20	>	import java.util.Arrays;
21	>	import java.util.List;
22	>	import java.util.Objects;
23	>	import java.util.Set;
24		import java.util.concurrent.Callable;
10	–	import java.util.concurrent.Executor;
11	–	import java.util.concurrent.ExecutorService;
12	–	import java.util.concurrent.Executors;
25		import java.util.concurrent.CancellationException;
14	–	import java.util.concurrent.CountDownLatch;
15	–	import java.util.concurrent.ExecutionException;
16	–	import java.util.concurrent.Future;
26		import java.util.concurrent.CompletableFuture;
27		import java.util.concurrent.CompletionException;
28		import java.util.concurrent.CompletionStage;
29	+	import java.util.concurrent.ExecutionException;
30	+	import java.util.concurrent.Executor;
31		import java.util.concurrent.ForkJoinPool;
32		import java.util.concurrent.ForkJoinTask;
33	+	import java.util.concurrent.RejectedExecutionException;
34		import java.util.concurrent.TimeoutException;
35		import java.util.concurrent.atomic.AtomicInteger;
36	<	import static java.util.concurrent.TimeUnit.MILLISECONDS;
25	<	import static java.util.concurrent.TimeUnit.SECONDS;
26	<	import java.util.*;
27	<	import java.util.function.Supplier;
28	<	import java.util.function.Consumer;
36	>	import java.util.concurrent.atomic.AtomicReference;
37		import java.util.function.BiConsumer;
30	–	import java.util.function.Function;
38		import java.util.function.BiFunction;
39	+	import java.util.function.Consumer;
40	+	import java.util.function.Function;
41	+	import java.util.function.Predicate;
42	+	import java.util.function.Supplier;
43	+
44	+	import junit.framework.Test;
45	+	import junit.framework.TestSuite;
46
47		public class CompletableFutureTest extends JSR166TestCase {
48
49		public static void main(String[] args) {
50	<	junit.textui.TestRunner.run(suite());
50	>	main(suite(), args);
51		}
52		public static Test suite() {
53		return new TestSuite(CompletableFutureTest.class);
#	Line 44 | Line 58 | public class CompletableFutureTest exten
58		void checkIncomplete(CompletableFuture<?> f) {
59		assertFalse(f.isDone());
60		assertFalse(f.isCancelled());
61	<	assertTrue(f.toString().contains("[Not completed]"));
61	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
62	>
63	>	Object result = null;
64		try {
65	<	assertNull(f.getNow(null));
65	>	result = f.getNow(null);
66		} catch (Throwable fail) { threadUnexpectedException(fail); }
67	+	assertNull(result);
68	+
69		try {
70	<	f.get(0L, SECONDS);
70	>	f.get(randomExpiredTimeout(), randomTimeUnit());
71		shouldThrow();
72		}
73		catch (TimeoutException success) {}
74		catch (Throwable fail) { threadUnexpectedException(fail); }
75		}
76
77	<	<T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
78	<	checkTimedGet(f, value);
77	>	<T> void checkCompletedNormally(CompletableFuture<T> f, T expectedValue) {
78	>	checkTimedGet(f, expectedValue);
79
80	+	assertEquals(expectedValue, f.join());
81	+	assertEquals(expectedValue, f.getNow(null));
82	+
83	+	T result = null;
84		try {
85	<	assertEquals(value, f.join());
64	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
65	<	try {
66	<	assertEquals(value, f.getNow(null));
67	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
68	<	try {
69	<	assertEquals(value, f.get());
85	>	result = f.get();
86		} catch (Throwable fail) { threadUnexpectedException(fail); }
87	+	assertEquals(expectedValue, result);
88	+
89		assertTrue(f.isDone());
90		assertFalse(f.isCancelled());
91		assertFalse(f.isCompletedExceptionally());
92	<	assertTrue(f.toString().contains("[Completed normally]"));
92	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
93		}
94
95	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
96	<	long startTime = System.nanoTime();
97	<	long timeoutMillis = LONG_DELAY_MS;
98	<	try {
99	<	f.get(timeoutMillis, MILLISECONDS);
100	<	shouldThrow();
101	<	} catch (ExecutionException success) {
102	<	assertTrue(success.getCause() instanceof CFException);
103	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
86	<	assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
95	>	/**
96	>	* Returns the "raw" internal exceptional completion of f,
97	>	* without any additional wrapping with CompletionException.
98	>	*/
99	>	Throwable exceptionalCompletion(CompletableFuture<?> f) {
100	>	// handle (and whenComplete and exceptionally) can distinguish
101	>	// between "direct" and "wrapped" exceptional completion
102	>	return f.handle((u, t) -> t).join();
103	>	}
104
105	<	try {
106	<	f.join();
107	<	shouldThrow();
108	<	} catch (CompletionException success) {
109	<	assertTrue(success.getCause() instanceof CFException);
110	<	}
111	<	try {
95	<	f.getNow(null);
96	<	shouldThrow();
97	<	} catch (CompletionException success) {
98	<	assertTrue(success.getCause() instanceof CFException);
105	>	void checkCompletedExceptionally(CompletableFuture<?> f,
106	>	boolean wrapped,
107	>	Consumer<Throwable> checker) {
108	>	Throwable cause = exceptionalCompletion(f);
109	>	if (wrapped) {
110	>	assertTrue(cause instanceof CompletionException);
111	>	cause = cause.getCause();
112		}
113	<	try {
101	<	f.get();
102	<	shouldThrow();
103	<	} catch (ExecutionException success) {
104	<	assertTrue(success.getCause() instanceof CFException);
105	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
106	<	assertTrue(f.isDone());
107	<	assertFalse(f.isCancelled());
108	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
109	<	}
113	>	checker.accept(cause);
114
111	–	<U> void checkCompletedExceptionallyWithRootCause(CompletableFuture<U> f,
112	–	Throwable ex) {
115		long startTime = System.nanoTime();
114	–	long timeoutMillis = LONG_DELAY_MS;
116		try {
117	<	f.get(timeoutMillis, MILLISECONDS);
117	>	f.get(LONG_DELAY_MS, MILLISECONDS);
118		shouldThrow();
119		} catch (ExecutionException success) {
120	<	assertSame(ex, success.getCause());
120	>	assertSame(cause, success.getCause());
121		} catch (Throwable fail) { threadUnexpectedException(fail); }
122	<	assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
122	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
123
124		try {
125		f.join();
126		shouldThrow();
127		} catch (CompletionException success) {
128	<	assertSame(ex, success.getCause());
129	<	}
128	>	assertSame(cause, success.getCause());
129	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
130	>
131		try {
132		f.getNow(null);
133		shouldThrow();
134		} catch (CompletionException success) {
135	<	assertSame(ex, success.getCause());
136	<	}
135	>	assertSame(cause, success.getCause());
136	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
137	>
138		try {
139		f.get();
140		shouldThrow();
141		} catch (ExecutionException success) {
142	<	assertSame(ex, success.getCause());
142	>	assertSame(cause, success.getCause());
143		} catch (Throwable fail) { threadUnexpectedException(fail); }
144
142	–	assertTrue(f.isDone());
145		assertFalse(f.isCancelled());
146	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
146	>	assertTrue(f.isDone());
147	>	assertTrue(f.isCompletedExceptionally());
148	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
149		}
150
151	<	<U> void checkCompletedWithWrappedException(CompletableFuture<U> f,
152	<	Throwable ex) {
153	<	checkCompletedExceptionallyWithRootCause(f, ex);
150	<	try {
151	<	CompletableFuture<Throwable> spy = f.handle
152	<	((U u, Throwable t) -> t);
153	<	assertTrue(spy.join() instanceof CompletionException);
154	<	assertSame(ex, spy.join().getCause());
155	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
151	>	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
152	>	checkCompletedExceptionally(f, true,
153	>	t -> assertTrue(t instanceof CFException));
154		}
155
156	<	<U> void checkCompletedExceptionally(CompletableFuture<U> f, Throwable ex) {
157	<	checkCompletedExceptionallyWithRootCause(f, ex);
158	<	try {
159	<	CompletableFuture<Throwable> spy = f.handle
160	<	((U u, Throwable t) -> t);
161	<	assertSame(ex, spy.join());
162	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
156	>	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
157	>	checkCompletedExceptionally(f, true,
158	>	t -> assertTrue(t instanceof CancellationException));
159	>	}
160	>
161	>	void checkCompletedWithTimeoutException(CompletableFuture<?> f) {
162	>	checkCompletedExceptionally(f, false,
163	>	t -> assertTrue(t instanceof TimeoutException));
164	>	}
165	>
166	>	void checkCompletedWithWrappedException(CompletableFuture<?> f,
167	>	Throwable ex) {
168	>	checkCompletedExceptionally(f, true, t -> assertSame(t, ex));
169	>	}
170	>
171	>	void checkCompletedExceptionally(CompletableFuture<?> f, Throwable ex) {
172	>	checkCompletedExceptionally(f, false, t -> assertSame(t, ex));
173		}
174
175		void checkCancelled(CompletableFuture<?> f) {
176		long startTime = System.nanoTime();
169	–	long timeoutMillis = LONG_DELAY_MS;
177		try {
178	<	f.get(timeoutMillis, MILLISECONDS);
178	>	f.get(LONG_DELAY_MS, MILLISECONDS);
179		shouldThrow();
180		} catch (CancellationException success) {
181		} catch (Throwable fail) { threadUnexpectedException(fail); }
182	<	assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
182	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
183
184		try {
185		f.join();
#	Line 187 | Line 194 | public class CompletableFutureTest exten
194		shouldThrow();
195		} catch (CancellationException success) {
196		} catch (Throwable fail) { threadUnexpectedException(fail); }
190	–	assertTrue(f.isDone());
191	–	assertTrue(f.isCompletedExceptionally());
192	–	assertTrue(f.isCancelled());
193	–	assertTrue(f.toString().contains("[Completed exceptionally]"));
194	–	}
197
198	<	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
197	<	long startTime = System.nanoTime();
198	<	long timeoutMillis = LONG_DELAY_MS;
199	<	try {
200	<	f.get(timeoutMillis, MILLISECONDS);
201	<	shouldThrow();
202	<	} catch (ExecutionException success) {
203	<	assertTrue(success.getCause() instanceof CancellationException);
204	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
205	<	assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
198	>	assertTrue(exceptionalCompletion(f) instanceof CancellationException);
199
207	–	try {
208	–	f.join();
209	–	shouldThrow();
210	–	} catch (CompletionException success) {
211	–	assertTrue(success.getCause() instanceof CancellationException);
212	–	}
213	–	try {
214	–	f.getNow(null);
215	–	shouldThrow();
216	–	} catch (CompletionException success) {
217	–	assertTrue(success.getCause() instanceof CancellationException);
218	–	}
219	–	try {
220	–	f.get();
221	–	shouldThrow();
222	–	} catch (ExecutionException success) {
223	–	assertTrue(success.getCause() instanceof CancellationException);
224	–	} catch (Throwable fail) { threadUnexpectedException(fail); }
200		assertTrue(f.isDone());
226	–	assertFalse(f.isCancelled());
201		assertTrue(f.isCompletedExceptionally());
202	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
202	>	assertTrue(f.isCancelled());
203	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
204		}
205
206		/**
#	Line 272 | Line 247 | public class CompletableFutureTest exten
247		{
248		CompletableFuture<Integer> f = new CompletableFuture<>();
249		checkIncomplete(f);
250	<	assertTrue(f.cancel(true));
251	<	assertTrue(f.cancel(true));
250	>	assertTrue(f.cancel(mayInterruptIfRunning));
251	>	assertTrue(f.cancel(mayInterruptIfRunning));
252	>	assertTrue(f.cancel(!mayInterruptIfRunning));
253		checkCancelled(f);
254		}}
255
#	Line 323 | Line 299 | public class CompletableFutureTest exten
299		}
300
301		f = new CompletableFuture<>();
302	<	f.completeExceptionally(ex = new CFException());
302	>	f.completeExceptionally(new CFException());
303		f.obtrudeValue(v1);
304		checkCompletedNormally(f, v1);
305		f.obtrudeException(ex = new CFException());
#	Line 360 | Line 336 | public class CompletableFutureTest exten
336		/**
337		* toString indicates current completion state
338		*/
339	<	public void testToString() {
340	<	CompletableFuture<String> f;
341	<
342	<	f = new CompletableFuture<String>();
343	<	assertTrue(f.toString().contains("[Not completed]"));
339	>	public void testToString_incomplete() {
340	>	CompletableFuture<String> f = new CompletableFuture<>();
341	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
342	>	if (testImplementationDetails)
343	>	assertEquals(identityString(f) + "[Not completed]",
344	>	f.toString());
345	>	}
346
347	+	public void testToString_normal() {
348	+	CompletableFuture<String> f = new CompletableFuture<>();
349		assertTrue(f.complete("foo"));
350	<	assertTrue(f.toString().contains("[Completed normally]"));
350	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
351	>	if (testImplementationDetails)
352	>	assertEquals(identityString(f) + "[Completed normally]",
353	>	f.toString());
354	>	}
355
356	<	f = new CompletableFuture<String>();
356	>	public void testToString_exception() {
357	>	CompletableFuture<String> f = new CompletableFuture<>();
358		assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
359	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
359	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
360	>	if (testImplementationDetails)
361	>	assertTrue(f.toString().startsWith(
362	>	identityString(f) + "[Completed exceptionally: "));
363	>	}
364
365	+	public void testToString_cancelled() {
366		for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
367	<	f = new CompletableFuture<String>();
367	>	CompletableFuture<String> f = new CompletableFuture<>();
368		assertTrue(f.cancel(mayInterruptIfRunning));
369	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
369	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
370	>	if (testImplementationDetails)
371	>	assertTrue(f.toString().startsWith(
372	>	identityString(f) + "[Completed exceptionally: "));
373		}
374		}
375
#	Line 388 | Line 381 | public class CompletableFutureTest exten
381		checkCompletedNormally(f, "test");
382		}
383
384	<	abstract class CheckedAction {
384	>	abstract static class CheckedAction {
385		int invocationCount = 0;
386		final ExecutionMode m;
387		CheckedAction(ExecutionMode m) { this.m = m; }
#	Line 400 | Line 393 | public class CompletableFutureTest exten
393		void assertInvoked() { assertEquals(1, invocationCount); }
394		}
395
396	<	abstract class CheckedIntegerAction extends CheckedAction {
396	>	abstract static class CheckedIntegerAction extends CheckedAction {
397		Integer value;
398		CheckedIntegerAction(ExecutionMode m) { super(m); }
399		void assertValue(Integer expected) {
#	Line 409 | Line 402 | public class CompletableFutureTest exten
402		}
403		}
404
405	<	class IntegerSupplier extends CheckedAction
405	>	static class IntegerSupplier extends CheckedAction
406		implements Supplier<Integer>
407		{
408		final Integer value;
#	Line 428 | Line 421 | public class CompletableFutureTest exten
421		return (x == null) ? null : x + 1;
422		}
423
424	<	class NoopConsumer extends CheckedIntegerAction
424	>	static class NoopConsumer extends CheckedIntegerAction
425		implements Consumer<Integer>
426		{
427		NoopConsumer(ExecutionMode m) { super(m); }
#	Line 438 | Line 431 | public class CompletableFutureTest exten
431		}
432		}
433
434	<	class IncFunction extends CheckedIntegerAction
434	>	static class IncFunction extends CheckedIntegerAction
435		implements Function<Integer,Integer>
436		{
437		IncFunction(ExecutionMode m) { super(m); }
#	Line 456 | Line 449 | public class CompletableFutureTest exten
449		- ((y == null) ? 99 : y.intValue());
450		}
451
452	<	class SubtractAction extends CheckedIntegerAction
452	>	static class SubtractAction extends CheckedIntegerAction
453		implements BiConsumer<Integer, Integer>
454		{
455		SubtractAction(ExecutionMode m) { super(m); }
#	Line 466 | Line 459 | public class CompletableFutureTest exten
459		}
460		}
461
462	<	class SubtractFunction extends CheckedIntegerAction
462	>	static class SubtractFunction extends CheckedIntegerAction
463		implements BiFunction<Integer, Integer, Integer>
464		{
465		SubtractFunction(ExecutionMode m) { super(m); }
#	Line 476 | Line 469 | public class CompletableFutureTest exten
469		}
470		}
471
472	<	class Noop extends CheckedAction implements Runnable {
472	>	static class Noop extends CheckedAction implements Runnable {
473		Noop(ExecutionMode m) { super(m); }
474		public void run() {
475		invoked();
476		}
477		}
478
479	<	class FailingSupplier extends CheckedAction
479	>	static class FailingSupplier extends CheckedAction
480		implements Supplier<Integer>
481		{
482	<	FailingSupplier(ExecutionMode m) { super(m); }
482	>	final CFException ex;
483	>	FailingSupplier(ExecutionMode m) { super(m); ex = new CFException(); }
484		public Integer get() {
485		invoked();
486	<	throw new CFException();
486	>	throw ex;
487		}
488		}
489
490	<	class FailingConsumer extends CheckedIntegerAction
490	>	static class FailingConsumer extends CheckedIntegerAction
491		implements Consumer<Integer>
492		{
493	<	FailingConsumer(ExecutionMode m) { super(m); }
493	>	final CFException ex;
494	>	FailingConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
495		public void accept(Integer x) {
496		invoked();
497		value = x;
498	<	throw new CFException();
498	>	throw ex;
499		}
500		}
501
502	<	class FailingBiConsumer extends CheckedIntegerAction
502	>	static class FailingBiConsumer extends CheckedIntegerAction
503		implements BiConsumer<Integer, Integer>
504		{
505	<	FailingBiConsumer(ExecutionMode m) { super(m); }
505	>	final CFException ex;
506	>	FailingBiConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
507		public void accept(Integer x, Integer y) {
508		invoked();
509		value = subtract(x, y);
510	<	throw new CFException();
510	>	throw ex;
511		}
512		}
513
514	<	class FailingFunction extends CheckedIntegerAction
514	>	static class FailingFunction extends CheckedIntegerAction
515		implements Function<Integer, Integer>
516		{
517	<	FailingFunction(ExecutionMode m) { super(m); }
517	>	final CFException ex;
518	>	FailingFunction(ExecutionMode m) { super(m); ex = new CFException(); }
519		public Integer apply(Integer x) {
520		invoked();
521		value = x;
522	<	throw new CFException();
522	>	throw ex;
523		}
524		}
525
526	<	class FailingBiFunction extends CheckedIntegerAction
526	>	static class FailingBiFunction extends CheckedIntegerAction
527		implements BiFunction<Integer, Integer, Integer>
528		{
529	<	FailingBiFunction(ExecutionMode m) { super(m); }
529	>	final CFException ex;
530	>	FailingBiFunction(ExecutionMode m) { super(m); ex = new CFException(); }
531		public Integer apply(Integer x, Integer y) {
532		invoked();
533		value = subtract(x, y);
534	<	throw new CFException();
534	>	throw ex;
535		}
536		}
537
538	<	class FailingRunnable extends CheckedAction implements Runnable {
539	<	FailingRunnable(ExecutionMode m) { super(m); }
538	>	static class FailingRunnable extends CheckedAction implements Runnable {
539	>	final CFException ex;
540	>	FailingRunnable(ExecutionMode m) { super(m); ex = new CFException(); }
541		public void run() {
542		invoked();
543	<	throw new CFException();
543	>	throw ex;
544		}
545		}
546
547	<
549	<	class CompletableFutureInc extends CheckedIntegerAction
547	>	static class CompletableFutureInc extends CheckedIntegerAction
548		implements Function<Integer, CompletableFuture<Integer>>
549		{
550		CompletableFutureInc(ExecutionMode m) { super(m); }
551		public CompletableFuture<Integer> apply(Integer x) {
552		invoked();
553		value = x;
554	<	CompletableFuture<Integer> f = new CompletableFuture<>();
555	<	assertTrue(f.complete(inc(x)));
556	<	return f;
554	>	return CompletableFuture.completedFuture(inc(x));
555	>	}
556	>	}
557	>
558	>	static class FailingExceptionalCompletableFutureFunction extends CheckedAction
559	>	implements Function<Throwable, CompletableFuture<Integer>>
560	>	{
561	>	final CFException ex;
562	>	FailingExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
563	>	public CompletableFuture<Integer> apply(Throwable x) {
564	>	invoked();
565	>	throw ex;
566		}
567		}
568
569	<	class FailingCompletableFutureFunction extends CheckedIntegerAction
569	>	static class ExceptionalCompletableFutureFunction extends CheckedAction
570	>	implements Function<Throwable, CompletionStage<Integer>> {
571	>	final Integer value = 3;
572	>	ExceptionalCompletableFutureFunction(ExecutionMode m) { super(m); }
573	>	public CompletionStage<Integer> apply(Throwable x) {
574	>	invoked();
575	>	return CompletableFuture.completedFuture(value);
576	>	}
577	>	}
578	>
579	>	static class FailingCompletableFutureFunction extends CheckedIntegerAction
580		implements Function<Integer, CompletableFuture<Integer>>
581		{
582	<	FailingCompletableFutureFunction(ExecutionMode m) { super(m); }
582	>	final CFException ex;
583	>	FailingCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
584		public CompletableFuture<Integer> apply(Integer x) {
585		invoked();
586		value = x;
587	<	throw new CFException();
587	>	throw ex;
588	>	}
589	>	}
590	>
591	>	static class CountingRejectingExecutor implements Executor {
592	>	final RejectedExecutionException ex = new RejectedExecutionException();
593	>	final AtomicInteger count = new AtomicInteger(0);
594	>	public void execute(Runnable r) {
595	>	count.getAndIncrement();
596	>	throw ex;
597		}
598		}
599
#	Line 664 | Line 691 | public class CompletableFutureTest exten
691		Function<? super T,U> a) {
692		return f.applyToEither(g, a);
693		}
694	+	public <T> CompletableFuture<T> exceptionally
695	+	(CompletableFuture<T> f,
696	+	Function<Throwable, ? extends T> fn) {
697	+	return f.exceptionally(fn);
698	+	}
699	+	public <T> CompletableFuture<T> exceptionallyCompose
700	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
701	+	return f.exceptionallyCompose(fn);
702	+	}
703		},
668	–
704		ASYNC {
705		public void checkExecutionMode() {
706		assertEquals(defaultExecutorIsCommonPool,
#	Line 738 | Line 773 | public class CompletableFutureTest exten
773		Function<? super T,U> a) {
774		return f.applyToEitherAsync(g, a);
775		}
776	+	public <T> CompletableFuture<T> exceptionally
777	+	(CompletableFuture<T> f,
778	+	Function<Throwable, ? extends T> fn) {
779	+	return f.exceptionallyAsync(fn);
780	+	}
781	+
782	+	public <T> CompletableFuture<T> exceptionallyCompose
783	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
784	+	return f.exceptionallyComposeAsync(fn);
785	+	}
786	+
787		},
788
789		EXECUTOR {
#	Line 811 | Line 857 | public class CompletableFutureTest exten
857		Function<? super T,U> a) {
858		return f.applyToEitherAsync(g, a, new ThreadExecutor());
859		}
860	+	public <T> CompletableFuture<T> exceptionally
861	+	(CompletableFuture<T> f,
862	+	Function<Throwable, ? extends T> fn) {
863	+	return f.exceptionallyAsync(fn, new ThreadExecutor());
864	+	}
865	+	public <T> CompletableFuture<T> exceptionallyCompose
866	+	(CompletableFuture<T> f, Function<Throwable, ? extends CompletionStage<T>> fn) {
867	+	return f.exceptionallyComposeAsync(fn, new ThreadExecutor());
868	+	}
869	+
870		};
871
872		public abstract void checkExecutionMode();
#	Line 853 | Line 909 | public class CompletableFutureTest exten
909		(CompletableFuture<T> f,
910		CompletionStage<? extends T> g,
911		Function<? super T,U> a);
912	+	public abstract <T> CompletableFuture<T> exceptionally
913	+	(CompletableFuture<T> f,
914	+	Function<Throwable, ? extends T> fn);
915	+	public abstract <T> CompletableFuture<T> exceptionallyCompose
916	+	(CompletableFuture<T> f,
917	+	Function<Throwable, ? extends CompletionStage<T>> fn);
918		}
919
920		/**
#	Line 860 | Line 922 | public class CompletableFutureTest exten
922		* normally, and source result is propagated
923		*/
924		public void testExceptionally_normalCompletion() {
925	+	for (ExecutionMode m : ExecutionMode.values())
926		for (boolean createIncomplete : new boolean[] { true, false })
927		for (Integer v1 : new Integer[] { 1, null })
928		{
929		final AtomicInteger a = new AtomicInteger(0);
930		final CompletableFuture<Integer> f = new CompletableFuture<>();
931		if (!createIncomplete) assertTrue(f.complete(v1));
932	<	final CompletableFuture<Integer> g = f.exceptionally
933	<	((Throwable t) -> {
871	<	// Should not be called
932	>	final CompletableFuture<Integer> g = m.exceptionally
933	>	(f, (Throwable t) -> {
934		a.getAndIncrement();
935	<	throw new AssertionError();
935	>	threadFail("should not be called");
936	>	return null;            // unreached
937		});
938		if (createIncomplete) assertTrue(f.complete(v1));
939
#	Line 884 | Line 947 | public class CompletableFutureTest exten
947		* exception
948		*/
949		public void testExceptionally_exceptionalCompletion() {
950	+	for (ExecutionMode m : ExecutionMode.values())
951		for (boolean createIncomplete : new boolean[] { true, false })
952		for (Integer v1 : new Integer[] { 1, null })
953		{
#	Line 891 | Line 955 | public class CompletableFutureTest exten
955		final CFException ex = new CFException();
956		final CompletableFuture<Integer> f = new CompletableFuture<>();
957		if (!createIncomplete) f.completeExceptionally(ex);
958	<	final CompletableFuture<Integer> g = f.exceptionally
959	<	((Throwable t) -> {
960	<	ExecutionMode.SYNC.checkExecutionMode();
958	>	final CompletableFuture<Integer> g = m.exceptionally
959	>	(f, (Throwable t) -> {
960	>	m.checkExecutionMode();
961		threadAssertSame(t, ex);
962		a.getAndIncrement();
963		return v1;
#	Line 904 | Line 968 | public class CompletableFutureTest exten
968		assertEquals(1, a.get());
969		}}
970
971	+	/**
972	+	* If an "exceptionally action" throws an exception, it completes
973	+	* exceptionally with that exception
974	+	*/
975		public void testExceptionally_exceptionalCompletionActionFailed() {
976	+	for (ExecutionMode m : ExecutionMode.values())
977		for (boolean createIncomplete : new boolean[] { true, false })
909	–	for (Integer v1 : new Integer[] { 1, null })
978		{
979		final AtomicInteger a = new AtomicInteger(0);
980		final CFException ex1 = new CFException();
981		final CFException ex2 = new CFException();
982		final CompletableFuture<Integer> f = new CompletableFuture<>();
983		if (!createIncomplete) f.completeExceptionally(ex1);
984	<	final CompletableFuture<Integer> g = f.exceptionally
985	<	((Throwable t) -> {
986	<	ExecutionMode.SYNC.checkExecutionMode();
984	>	final CompletableFuture<Integer> g = m.exceptionally
985	>	(f, (Throwable t) -> {
986	>	m.checkExecutionMode();
987		threadAssertSame(t, ex1);
988		a.getAndIncrement();
989		throw ex2;
#	Line 923 | Line 991 | public class CompletableFutureTest exten
991		if (createIncomplete) f.completeExceptionally(ex1);
992
993		checkCompletedWithWrappedException(g, ex2);
994	+	checkCompletedExceptionally(f, ex1);
995		assertEquals(1, a.get());
996		}}
997
#	Line 930 | Line 999 | public class CompletableFutureTest exten
999		* whenComplete action executes on normal completion, propagating
1000		* source result.
1001		*/
1002	<	public void testWhenComplete_normalCompletion1() {
1002	>	public void testWhenComplete_normalCompletion() {
1003		for (ExecutionMode m : ExecutionMode.values())
1004		for (boolean createIncomplete : new boolean[] { true, false })
1005		for (Integer v1 : new Integer[] { 1, null })
#	Line 940 | Line 1009 | public class CompletableFutureTest exten
1009		if (!createIncomplete) assertTrue(f.complete(v1));
1010		final CompletableFuture<Integer> g = m.whenComplete
1011		(f,
1012	<	(Integer x, Throwable t) -> {
1012	>	(Integer result, Throwable t) -> {
1013		m.checkExecutionMode();
1014	<	threadAssertSame(x, v1);
1014	>	threadAssertSame(result, v1);
1015		threadAssertNull(t);
1016		a.getAndIncrement();
1017		});
#	Line 960 | Line 1029 | public class CompletableFutureTest exten
1029		public void testWhenComplete_exceptionalCompletion() {
1030		for (ExecutionMode m : ExecutionMode.values())
1031		for (boolean createIncomplete : new boolean[] { true, false })
963	–	for (Integer v1 : new Integer[] { 1, null })
1032		{
1033		final AtomicInteger a = new AtomicInteger(0);
1034		final CFException ex = new CFException();
#	Line 968 | Line 1036 | public class CompletableFutureTest exten
1036		if (!createIncomplete) f.completeExceptionally(ex);
1037		final CompletableFuture<Integer> g = m.whenComplete
1038		(f,
1039	<	(Integer x, Throwable t) -> {
1039	>	(Integer result, Throwable t) -> {
1040		m.checkExecutionMode();
1041	<	threadAssertNull(x);
1041	>	threadAssertNull(result);
1042		threadAssertSame(t, ex);
1043		a.getAndIncrement();
1044		});
#	Line 995 | Line 1063 | public class CompletableFutureTest exten
1063		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1064		final CompletableFuture<Integer> g = m.whenComplete
1065		(f,
1066	<	(Integer x, Throwable t) -> {
1066	>	(Integer result, Throwable t) -> {
1067		m.checkExecutionMode();
1068	<	threadAssertNull(x);
1068	>	threadAssertNull(result);
1069		threadAssertTrue(t instanceof CancellationException);
1070		a.getAndIncrement();
1071		});
#	Line 1012 | Line 1080 | public class CompletableFutureTest exten
1080		* If a whenComplete action throws an exception when triggered by
1081		* a normal completion, it completes exceptionally
1082		*/
1083	<	public void testWhenComplete_actionFailed() {
1083	>	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
1084		for (boolean createIncomplete : new boolean[] { true, false })
1085		for (ExecutionMode m : ExecutionMode.values())
1086		for (Integer v1 : new Integer[] { 1, null })
#	Line 1023 | Line 1091 | public class CompletableFutureTest exten
1091		if (!createIncomplete) assertTrue(f.complete(v1));
1092		final CompletableFuture<Integer> g = m.whenComplete
1093		(f,
1094	<	(Integer x, Throwable t) -> {
1094	>	(Integer result, Throwable t) -> {
1095		m.checkExecutionMode();
1096	<	threadAssertSame(x, v1);
1096	>	threadAssertSame(result, v1);
1097		threadAssertNull(t);
1098		a.getAndIncrement();
1099		throw ex;
#	Line 1040 | Line 1108 | public class CompletableFutureTest exten
1108		/**
1109		* If a whenComplete action throws an exception when triggered by
1110		* a source completion that also throws an exception, the source
1111	<	* exception takes precedence.
1111	>	* exception takes precedence (unlike handle)
1112		*/
1113	<	public void testWhenComplete_actionFailedSourceFailed() {
1113	>	public void testWhenComplete_sourceFailedActionFailed() {
1114		for (boolean createIncomplete : new boolean[] { true, false })
1115		for (ExecutionMode m : ExecutionMode.values())
1048	–	for (Integer v1 : new Integer[] { 1, null })
1116		{
1117		final AtomicInteger a = new AtomicInteger(0);
1118		final CFException ex1 = new CFException();
#	Line 1055 | Line 1122 | public class CompletableFutureTest exten
1122		if (!createIncomplete) f.completeExceptionally(ex1);
1123		final CompletableFuture<Integer> g = m.whenComplete
1124		(f,
1125	<	(Integer x, Throwable t) -> {
1125	>	(Integer result, Throwable t) -> {
1126		m.checkExecutionMode();
1127		threadAssertSame(t, ex1);
1128	<	threadAssertNull(x);
1128	>	threadAssertNull(result);
1129		a.getAndIncrement();
1130		throw ex2;
1131		});
#	Line 1066 | Line 1133 | public class CompletableFutureTest exten
1133
1134		checkCompletedWithWrappedException(g, ex1);
1135		checkCompletedExceptionally(f, ex1);
1136	+	if (testImplementationDetails) {
1137	+	assertEquals(1, ex1.getSuppressed().length);
1138	+	assertSame(ex2, ex1.getSuppressed()[0]);
1139	+	}
1140		assertEquals(1, a.get());
1141		}}
1142
#	Line 1083 | Line 1154 | public class CompletableFutureTest exten
1154		if (!createIncomplete) assertTrue(f.complete(v1));
1155		final CompletableFuture<Integer> g = m.handle
1156		(f,
1157	<	(Integer x, Throwable t) -> {
1157	>	(Integer result, Throwable t) -> {
1158		m.checkExecutionMode();
1159	<	threadAssertSame(x, v1);
1159	>	threadAssertSame(result, v1);
1160		threadAssertNull(t);
1161		a.getAndIncrement();
1162		return inc(v1);
#	Line 1112 | Line 1183 | public class CompletableFutureTest exten
1183		if (!createIncomplete) f.completeExceptionally(ex);
1184		final CompletableFuture<Integer> g = m.handle
1185		(f,
1186	<	(Integer x, Throwable t) -> {
1186	>	(Integer result, Throwable t) -> {
1187		m.checkExecutionMode();
1188	<	threadAssertNull(x);
1188	>	threadAssertNull(result);
1189		threadAssertSame(t, ex);
1190		a.getAndIncrement();
1191		return v1;
#	Line 1141 | Line 1212 | public class CompletableFutureTest exten
1212		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1213		final CompletableFuture<Integer> g = m.handle
1214		(f,
1215	<	(Integer x, Throwable t) -> {
1215	>	(Integer result, Throwable t) -> {
1216		m.checkExecutionMode();
1217	<	threadAssertNull(x);
1217	>	threadAssertNull(result);
1218		threadAssertTrue(t instanceof CancellationException);
1219		a.getAndIncrement();
1220		return v1;
#	Line 1156 | Line 1227 | public class CompletableFutureTest exten
1227		}}
1228
1229		/**
1230	<	* handle result completes exceptionally if action does
1230	>	* If a "handle action" throws an exception when triggered by
1231	>	* a normal completion, it completes exceptionally
1232		*/
1233	<	public void testHandle_sourceFailedActionFailed() {
1233	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1234		for (ExecutionMode m : ExecutionMode.values())
1235		for (boolean createIncomplete : new boolean[] { true, false })
1236	+	for (Integer v1 : new Integer[] { 1, null })
1237		{
1238		final CompletableFuture<Integer> f = new CompletableFuture<>();
1239		final AtomicInteger a = new AtomicInteger(0);
1240	<	final CFException ex1 = new CFException();
1241	<	final CFException ex2 = new CFException();
1169	<	if (!createIncomplete) f.completeExceptionally(ex1);
1240	>	final CFException ex = new CFException();
1241	>	if (!createIncomplete) assertTrue(f.complete(v1));
1242		final CompletableFuture<Integer> g = m.handle
1243		(f,
1244	<	(Integer x, Throwable t) -> {
1244	>	(Integer result, Throwable t) -> {
1245		m.checkExecutionMode();
1246	<	threadAssertNull(x);
1247	<	threadAssertSame(ex1, t);
1246	>	threadAssertSame(result, v1);
1247	>	threadAssertNull(t);
1248		a.getAndIncrement();
1249	<	throw ex2;
1249	>	throw ex;
1250		});
1251	<	if (createIncomplete) f.completeExceptionally(ex1);
1251	>	if (createIncomplete) assertTrue(f.complete(v1));
1252
1253	<	checkCompletedWithWrappedException(g, ex2);
1254	<	checkCompletedExceptionally(f, ex1);
1253	>	checkCompletedWithWrappedException(g, ex);
1254	>	checkCompletedNormally(f, v1);
1255		assertEquals(1, a.get());
1256		}}
1257
1258	<	public void testHandle_sourceCompletedNormallyActionFailed() {
1259	<	for (ExecutionMode m : ExecutionMode.values())
1258	>	/**
1259	>	* If a "handle action" throws an exception when triggered by
1260	>	* a source completion that also throws an exception, the action
1261	>	* exception takes precedence (unlike whenComplete)
1262	>	*/
1263	>	public void testHandle_sourceFailedActionFailed() {
1264		for (boolean createIncomplete : new boolean[] { true, false })
1265	<	for (Integer v1 : new Integer[] { 1, null })
1265	>	for (ExecutionMode m : ExecutionMode.values())
1266		{
1191	–	final CompletableFuture<Integer> f = new CompletableFuture<>();
1267		final AtomicInteger a = new AtomicInteger(0);
1268	<	final CFException ex = new CFException();
1269	<	if (!createIncomplete) assertTrue(f.complete(v1));
1268	>	final CFException ex1 = new CFException();
1269	>	final CFException ex2 = new CFException();
1270	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1271	>
1272	>	if (!createIncomplete) f.completeExceptionally(ex1);
1273		final CompletableFuture<Integer> g = m.handle
1274		(f,
1275	<	(Integer x, Throwable t) -> {
1275	>	(Integer result, Throwable t) -> {
1276		m.checkExecutionMode();
1277	<	threadAssertSame(x, v1);
1278	<	threadAssertNull(t);
1277	>	threadAssertNull(result);
1278	>	threadAssertSame(ex1, t);
1279		a.getAndIncrement();
1280	<	throw ex;
1280	>	throw ex2;
1281		});
1282	<	if (createIncomplete) assertTrue(f.complete(v1));
1282	>	if (createIncomplete) f.completeExceptionally(ex1);
1283
1284	<	checkCompletedWithWrappedException(g, ex);
1285	<	checkCompletedNormally(f, v1);
1284	>	checkCompletedWithWrappedException(g, ex2);
1285	>	checkCompletedExceptionally(f, ex1);
1286		assertEquals(1, a.get());
1287		}}
1288
#	Line 1237 | Line 1315 | public class CompletableFutureTest exten
1315		{
1316		final FailingRunnable r = new FailingRunnable(m);
1317		final CompletableFuture<Void> f = m.runAsync(r);
1318	<	checkCompletedWithWrappedCFException(f);
1318	>	checkCompletedWithWrappedException(f, r.ex);
1319		r.assertInvoked();
1320		}}
1321
1322	+	@SuppressWarnings("FutureReturnValueIgnored")
1323	+	public void testRunAsync_rejectingExecutor() {
1324	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1325	+	try {
1326	+	CompletableFuture.runAsync(() -> {}, e);
1327	+	shouldThrow();
1328	+	} catch (Throwable t) {
1329	+	assertSame(e.ex, t);
1330	+	}
1331	+
1332	+	assertEquals(1, e.count.get());
1333	+	}
1334	+
1335		/**
1336		* supplyAsync completes with result of supplier
1337		*/
#	Line 1271 | Line 1362 | public class CompletableFutureTest exten
1362		{
1363		FailingSupplier r = new FailingSupplier(m);
1364		CompletableFuture<Integer> f = m.supplyAsync(r);
1365	<	checkCompletedWithWrappedCFException(f);
1365	>	checkCompletedWithWrappedException(f, r.ex);
1366		r.assertInvoked();
1367		}}
1368
1369	+	@SuppressWarnings("FutureReturnValueIgnored")
1370	+	public void testSupplyAsync_rejectingExecutor() {
1371	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1372	+	try {
1373	+	CompletableFuture.supplyAsync(() -> null, e);
1374	+	shouldThrow();
1375	+	} catch (Throwable t) {
1376	+	assertSame(e.ex, t);
1377	+	}
1378	+
1379	+	assertEquals(1, e.count.get());
1380	+	}
1381	+
1382		// seq completion methods
1383
1384		/**
#	Line 1393 | Line 1497 | public class CompletableFutureTest exten
1497		final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1498		final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1499
1500	<	checkCompletedWithWrappedCFException(h0);
1501	<	checkCompletedWithWrappedCFException(h1);
1502	<	checkCompletedWithWrappedCFException(h2);
1503	<	checkCompletedWithWrappedCFException(h3);
1504	<	checkCompletedWithWrappedCFException(h4);
1505	<	checkCompletedWithWrappedCFException(h5);
1500	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1501	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1502	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1503	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1504	>	checkCompletedWithWrappedException(h4, rs[4].ex);
1505	>	checkCompletedWithWrappedException(h5, rs[5].ex);
1506		checkCompletedNormally(f, v1);
1507		}}
1508
#	Line 1497 | Line 1601 | public class CompletableFutureTest exten
1601		final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1602		final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1603
1604	<	checkCompletedWithWrappedCFException(h0);
1605	<	checkCompletedWithWrappedCFException(h1);
1606	<	checkCompletedWithWrappedCFException(h2);
1607	<	checkCompletedWithWrappedCFException(h3);
1604	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1605	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1606	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1607	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1608		checkCompletedNormally(f, v1);
1609		}}
1610
#	Line 1599 | Line 1703 | public class CompletableFutureTest exten
1703		final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1704		final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1705
1706	<	checkCompletedWithWrappedCFException(h0);
1707	<	checkCompletedWithWrappedCFException(h1);
1708	<	checkCompletedWithWrappedCFException(h2);
1709	<	checkCompletedWithWrappedCFException(h3);
1706	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1707	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1708	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1709	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1710		checkCompletedNormally(f, v1);
1711		}}
1712
#	Line 1764 | Line 1868 | public class CompletableFutureTest exten
1868		assertTrue(snd.complete(w2));
1869		final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1870
1871	<	checkCompletedWithWrappedCFException(h1);
1872	<	checkCompletedWithWrappedCFException(h2);
1873	<	checkCompletedWithWrappedCFException(h3);
1871	>	checkCompletedWithWrappedException(h1, r1.ex);
1872	>	checkCompletedWithWrappedException(h2, r2.ex);
1873	>	checkCompletedWithWrappedException(h3, r3.ex);
1874		r1.assertInvoked();
1875		r2.assertInvoked();
1876		r3.assertInvoked();
#	Line 1928 | Line 2032 | public class CompletableFutureTest exten
2032		assertTrue(snd.complete(w2));
2033		final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
2034
2035	<	checkCompletedWithWrappedCFException(h1);
2036	<	checkCompletedWithWrappedCFException(h2);
2037	<	checkCompletedWithWrappedCFException(h3);
2035	>	checkCompletedWithWrappedException(h1, r1.ex);
2036	>	checkCompletedWithWrappedException(h2, r2.ex);
2037	>	checkCompletedWithWrappedException(h3, r3.ex);
2038		r1.assertInvoked();
2039		r2.assertInvoked();
2040		r3.assertInvoked();
#	Line 2092 | Line 2196 | public class CompletableFutureTest exten
2196		assertTrue(snd.complete(w2));
2197		final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2198
2199	<	checkCompletedWithWrappedCFException(h1);
2200	<	checkCompletedWithWrappedCFException(h2);
2201	<	checkCompletedWithWrappedCFException(h3);
2199	>	checkCompletedWithWrappedException(h1, r1.ex);
2200	>	checkCompletedWithWrappedException(h2, r2.ex);
2201	>	checkCompletedWithWrappedException(h3, r3.ex);
2202		r1.assertInvoked();
2203		r2.assertInvoked();
2204		r3.assertInvoked();
#	Line 2384 | Line 2488 | public class CompletableFutureTest exten
2488		f.complete(v1);
2489		final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2490		final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2491	<	checkCompletedWithWrappedCFException(h0);
2492	<	checkCompletedWithWrappedCFException(h1);
2493	<	checkCompletedWithWrappedCFException(h2);
2494	<	checkCompletedWithWrappedCFException(h3);
2491	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2492	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2493	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2494	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2495		for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2496
2497		g.complete(v2);
#	Line 2396 | Line 2500 | public class CompletableFutureTest exten
2500		final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2501		final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2502
2503	<	checkCompletedWithWrappedCFException(h4);
2503	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2504		assertTrue(Objects.equals(v1, rs[4].value) ||
2505		Objects.equals(v2, rs[4].value));
2506	<	checkCompletedWithWrappedCFException(h5);
2506	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2507		assertTrue(Objects.equals(v1, rs[5].value) ||
2508		Objects.equals(v2, rs[5].value));
2509
#	Line 2537 | Line 2641 | public class CompletableFutureTest exten
2641
2642		// unspecified behavior - both source completions available
2643		try {
2644	<	assertEquals(null, h0.join());
2644	>	assertNull(h0.join());
2645		rs[0].assertValue(v1);
2646		} catch (CompletionException ok) {
2647		checkCompletedWithWrappedException(h0, ex);
2648		rs[0].assertNotInvoked();
2649		}
2650		try {
2651	<	assertEquals(null, h1.join());
2651	>	assertNull(h1.join());
2652		rs[1].assertValue(v1);
2653		} catch (CompletionException ok) {
2654		checkCompletedWithWrappedException(h1, ex);
2655		rs[1].assertNotInvoked();
2656		}
2657		try {
2658	<	assertEquals(null, h2.join());
2658	>	assertNull(h2.join());
2659		rs[2].assertValue(v1);
2660		} catch (CompletionException ok) {
2661		checkCompletedWithWrappedException(h2, ex);
2662		rs[2].assertNotInvoked();
2663		}
2664		try {
2665	<	assertEquals(null, h3.join());
2665	>	assertNull(h3.join());
2666		rs[3].assertValue(v1);
2667		} catch (CompletionException ok) {
2668		checkCompletedWithWrappedException(h3, ex);
#	Line 2643 | Line 2747 | public class CompletableFutureTest exten
2747		f.complete(v1);
2748		final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2749		final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2750	<	checkCompletedWithWrappedCFException(h0);
2751	<	checkCompletedWithWrappedCFException(h1);
2752	<	checkCompletedWithWrappedCFException(h2);
2753	<	checkCompletedWithWrappedCFException(h3);
2750	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2751	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2752	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2753	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2754		for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2755
2756		g.complete(v2);
#	Line 2655 | Line 2759 | public class CompletableFutureTest exten
2759		final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2760		final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2761
2762	<	checkCompletedWithWrappedCFException(h4);
2762	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2763		assertTrue(Objects.equals(v1, rs[4].value) ||
2764		Objects.equals(v2, rs[4].value));
2765	<	checkCompletedWithWrappedCFException(h5);
2765	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2766		assertTrue(Objects.equals(v1, rs[5].value) ||
2767		Objects.equals(v2, rs[5].value));
2768
#	Line 2674 | Line 2778 | public class CompletableFutureTest exten
2778		for (ExecutionMode m : ExecutionMode.values())
2779		for (Integer v1 : new Integer[] { 1, null })
2780		for (Integer v2 : new Integer[] { 2, null })
2781	+	for (boolean pushNop : new boolean[] { true, false })
2782		{
2783		final CompletableFuture<Integer> f = new CompletableFuture<>();
2784		final CompletableFuture<Integer> g = new CompletableFuture<>();
#	Line 2686 | Line 2791 | public class CompletableFutureTest exten
2791		checkIncomplete(h1);
2792		rs[0].assertNotInvoked();
2793		rs[1].assertNotInvoked();
2794	+	if (pushNop) {          // ad hoc test of intra-completion interference
2795	+	m.thenRun(f, () -> {});
2796	+	m.thenRun(g, () -> {});
2797	+	}
2798		f.complete(v1);
2799		checkCompletedNormally(h0, null);
2800		checkCompletedNormally(h1, null);
#	Line 2792 | Line 2901 | public class CompletableFutureTest exten
2901
2902		// unspecified behavior - both source completions available
2903		try {
2904	<	assertEquals(null, h0.join());
2904	>	assertNull(h0.join());
2905		rs[0].assertInvoked();
2906		} catch (CompletionException ok) {
2907		checkCompletedWithWrappedException(h0, ex);
2908		rs[0].assertNotInvoked();
2909		}
2910		try {
2911	<	assertEquals(null, h1.join());
2911	>	assertNull(h1.join());
2912		rs[1].assertInvoked();
2913		} catch (CompletionException ok) {
2914		checkCompletedWithWrappedException(h1, ex);
2915		rs[1].assertNotInvoked();
2916		}
2917		try {
2918	<	assertEquals(null, h2.join());
2918	>	assertNull(h2.join());
2919		rs[2].assertInvoked();
2920		} catch (CompletionException ok) {
2921		checkCompletedWithWrappedException(h2, ex);
2922		rs[2].assertNotInvoked();
2923		}
2924		try {
2925	<	assertEquals(null, h3.join());
2925	>	assertNull(h3.join());
2926		rs[3].assertInvoked();
2927		} catch (CompletionException ok) {
2928		checkCompletedWithWrappedException(h3, ex);
#	Line 2898 | Line 3007 | public class CompletableFutureTest exten
3007		assertTrue(f.complete(v1));
3008		final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
3009		final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
3010	<	checkCompletedWithWrappedCFException(h0);
3011	<	checkCompletedWithWrappedCFException(h1);
3012	<	checkCompletedWithWrappedCFException(h2);
3013	<	checkCompletedWithWrappedCFException(h3);
3010	>	checkCompletedWithWrappedException(h0, rs[0].ex);
3011	>	checkCompletedWithWrappedException(h1, rs[1].ex);
3012	>	checkCompletedWithWrappedException(h2, rs[2].ex);
3013	>	checkCompletedWithWrappedException(h3, rs[3].ex);
3014		for (int i = 0; i < 4; i++) rs[i].assertInvoked();
3015		assertTrue(g.complete(v2));
3016		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
3017		final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
3018	<	checkCompletedWithWrappedCFException(h4);
3019	<	checkCompletedWithWrappedCFException(h5);
3018	>	checkCompletedWithWrappedException(h4, rs[4].ex);
3019	>	checkCompletedWithWrappedException(h5, rs[5].ex);
3020
3021		checkCompletedNormally(f, v1);
3022		checkCompletedNormally(g, v2);
#	Line 2968 | Line 3077 | public class CompletableFutureTest exten
3077		final CompletableFuture<Integer> g = m.thenCompose(f, r);
3078		if (createIncomplete) assertTrue(f.complete(v1));
3079
3080	<	checkCompletedWithWrappedCFException(g);
3080	>	checkCompletedWithWrappedException(g, r.ex);
3081		checkCompletedNormally(f, v1);
3082		}}
3083
#	Line 2993 | Line 3102 | public class CompletableFutureTest exten
3102		checkCancelled(f);
3103		}}
3104
3105	+	/**
3106	+	* thenCompose result completes exceptionally if the result of the action does
3107	+	*/
3108	+	public void testThenCompose_actionReturnsFailingFuture() {
3109	+	for (ExecutionMode m : ExecutionMode.values())
3110	+	for (int order = 0; order < 6; order++)
3111	+	for (Integer v1 : new Integer[] { 1, null })
3112	+	{
3113	+	final CFException ex = new CFException();
3114	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3115	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
3116	+	final CompletableFuture<Integer> h;
3117	+	// Test all permutations of orders
3118	+	switch (order) {
3119	+	case 0:
3120	+	assertTrue(f.complete(v1));
3121	+	assertTrue(g.completeExceptionally(ex));
3122	+	h = m.thenCompose(f, (x -> g));
3123	+	break;
3124	+	case 1:
3125	+	assertTrue(f.complete(v1));
3126	+	h = m.thenCompose(f, (x -> g));
3127	+	assertTrue(g.completeExceptionally(ex));
3128	+	break;
3129	+	case 2:
3130	+	assertTrue(g.completeExceptionally(ex));
3131	+	assertTrue(f.complete(v1));
3132	+	h = m.thenCompose(f, (x -> g));
3133	+	break;
3134	+	case 3:
3135	+	assertTrue(g.completeExceptionally(ex));
3136	+	h = m.thenCompose(f, (x -> g));
3137	+	assertTrue(f.complete(v1));
3138	+	break;
3139	+	case 4:
3140	+	h = m.thenCompose(f, (x -> g));
3141	+	assertTrue(f.complete(v1));
3142	+	assertTrue(g.completeExceptionally(ex));
3143	+	break;
3144	+	case 5:
3145	+	h = m.thenCompose(f, (x -> g));
3146	+	assertTrue(f.complete(v1));
3147	+	assertTrue(g.completeExceptionally(ex));
3148	+	break;
3149	+	default: throw new AssertionError();
3150	+	}
3151	+
3152	+	checkCompletedExceptionally(g, ex);
3153	+	checkCompletedWithWrappedException(h, ex);
3154	+	checkCompletedNormally(f, v1);
3155	+	}}
3156	+
3157	+	/**
3158	+	* exceptionallyCompose result completes normally after normal
3159	+	* completion of source
3160	+	*/
3161	+	public void testExceptionallyCompose_normalCompletion() {
3162	+	for (ExecutionMode m : ExecutionMode.values())
3163	+	for (boolean createIncomplete : new boolean[] { true, false })
3164	+	for (Integer v1 : new Integer[] { 1, null })
3165	+	{
3166	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3167	+	final ExceptionalCompletableFutureFunction r =
3168	+	new ExceptionalCompletableFutureFunction(m);
3169	+	if (!createIncomplete) assertTrue(f.complete(v1));
3170	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3171	+	if (createIncomplete) assertTrue(f.complete(v1));
3172	+
3173	+	checkCompletedNormally(f, v1);
3174	+	checkCompletedNormally(g, v1);
3175	+	r.assertNotInvoked();
3176	+	}}
3177	+
3178	+	/**
3179	+	* exceptionallyCompose result completes normally after exceptional
3180	+	* completion of source
3181	+	*/
3182	+	public void testExceptionallyCompose_exceptionalCompletion() {
3183	+	for (ExecutionMode m : ExecutionMode.values())
3184	+	for (boolean createIncomplete : new boolean[] { true, false })
3185	+	{
3186	+	final CFException ex = new CFException();
3187	+	final ExceptionalCompletableFutureFunction r =
3188	+	new ExceptionalCompletableFutureFunction(m);
3189	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3190	+	if (!createIncomplete) f.completeExceptionally(ex);
3191	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3192	+	if (createIncomplete) f.completeExceptionally(ex);
3193	+
3194	+	checkCompletedExceptionally(f, ex);
3195	+	checkCompletedNormally(g, r.value);
3196	+	r.assertInvoked();
3197	+	}}
3198	+
3199	+	/**
3200	+	* exceptionallyCompose completes exceptionally on exception if action does
3201	+	*/
3202	+	public void testExceptionallyCompose_actionFailed() {
3203	+	for (ExecutionMode m : ExecutionMode.values())
3204	+	for (boolean createIncomplete : new boolean[] { true, false })
3205	+	for (Integer v1 : new Integer[] { 1, null })
3206	+	{
3207	+	final CFException ex = new CFException();
3208	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3209	+	final FailingExceptionalCompletableFutureFunction r
3210	+	= new FailingExceptionalCompletableFutureFunction(m);
3211	+	if (!createIncomplete) f.completeExceptionally(ex);
3212	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3213	+	if (createIncomplete) f.completeExceptionally(ex);
3214	+
3215	+	checkCompletedExceptionally(f, ex);
3216	+	checkCompletedWithWrappedException(g, r.ex);
3217	+	r.assertInvoked();
3218	+	}}
3219	+
3220	+
3221		// other static methods
3222
3223		/**
#	Line 3025 | Line 3250 | public class CompletableFutureTest exten
3250		}
3251		}
3252
3253	<	public void testAllOf_backwards() throws Exception {
3253	>	public void testAllOf_normal_backwards() throws Exception {
3254		for (int k = 1; k < 10; k++) {
3255		CompletableFuture<Integer>[] fs
3256		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
#	Line 3053 | Line 3278 | public class CompletableFutureTest exten
3278		for (int i = 0; i < k; i++) {
3279		checkIncomplete(f);
3280		checkIncomplete(CompletableFuture.allOf(fs));
3281	<	if (i != k/2) {
3281	>	if (i != k / 2) {
3282		fs[i].complete(i);
3283		checkCompletedNormally(fs[i], i);
3284		} else {
#	Line 3156 | Line 3381 | public class CompletableFutureTest exten
3381		/**
3382		* Completion methods throw NullPointerException with null arguments
3383		*/
3384	+	@SuppressWarnings("FutureReturnValueIgnored")
3385		public void testNPE() {
3386		CompletableFuture<Integer> f = new CompletableFuture<>();
3387		CompletableFuture<Integer> g = new CompletableFuture<>();
3388		CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
3163	–	CompletableFuture<?> h;
3389		ThreadExecutor exec = new ThreadExecutor();
3390
3391		Runnable[] throwingActions = {
#	Line 3176 | Line 3401 | public class CompletableFutureTest exten
3401
3402		() -> f.thenApply(null),
3403		() -> f.thenApplyAsync(null),
3404	<	() -> f.thenApplyAsync((x) -> x, null),
3404	>	() -> f.thenApplyAsync(x -> x, null),
3405		() -> f.thenApplyAsync(null, exec),
3406
3407		() -> f.thenAccept(null),
3408		() -> f.thenAcceptAsync(null),
3409	<	() -> f.thenAcceptAsync((x) -> {} , null),
3409	>	() -> f.thenAcceptAsync(x -> {} , null),
3410		() -> f.thenAcceptAsync(null, exec),
3411
3412		() -> f.thenRun(null),
#	Line 3216 | Line 3441 | public class CompletableFutureTest exten
3441		() -> f.applyToEither(g, null),
3442		() -> f.applyToEitherAsync(g, null),
3443		() -> f.applyToEitherAsync(g, null, exec),
3444	<	() -> f.applyToEither(nullFuture, (x) -> x),
3445	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x),
3446	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
3447	<	() -> f.applyToEitherAsync(g, (x) -> x, null),
3444	>	() -> f.applyToEither(nullFuture, x -> x),
3445	>	() -> f.applyToEitherAsync(nullFuture, x -> x),
3446	>	() -> f.applyToEitherAsync(nullFuture, x -> x, exec),
3447	>	() -> f.applyToEitherAsync(g, x -> x, null),
3448
3449		() -> f.acceptEither(g, null),
3450		() -> f.acceptEitherAsync(g, null),
3451		() -> f.acceptEitherAsync(g, null, exec),
3452	<	() -> f.acceptEither(nullFuture, (x) -> {}),
3453	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}),
3454	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
3455	<	() -> f.acceptEitherAsync(g, (x) -> {}, null),
3452	>	() -> f.acceptEither(nullFuture, x -> {}),
3453	>	() -> f.acceptEitherAsync(nullFuture, x -> {}),
3454	>	() -> f.acceptEitherAsync(nullFuture, x -> {}, exec),
3455	>	() -> f.acceptEitherAsync(g, x -> {}, null),
3456
3457		() -> f.runAfterEither(g, null),
3458		() -> f.runAfterEitherAsync(g, null),
#	Line 3257 | Line 3482 | public class CompletableFutureTest exten
3482		() -> CompletableFuture.anyOf(null, f),
3483
3484		() -> f.obtrudeException(null),
3485	+
3486	+	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3487	+	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3488	+	() -> CompletableFuture.delayedExecutor(1L, null),
3489	+
3490	+	() -> f.orTimeout(1L, null),
3491	+	() -> f.completeOnTimeout(42, 1L, null),
3492	+
3493	+	() -> CompletableFuture.failedFuture(null),
3494	+	() -> CompletableFuture.failedStage(null),
3495		};
3496
3497		assertThrows(NullPointerException.class, throwingActions);
#	Line 3264 | Line 3499 | public class CompletableFutureTest exten
3499		}
3500
3501		/**
3502	+	* Test submissions to an executor that rejects all tasks.
3503	+	*/
3504	+	public void testRejectingExecutor() {
3505	+	for (Integer v : new Integer[] { 1, null })
3506	+	{
3507	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3508	+
3509	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3510	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3511	+
3512	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3513	+
3514	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3515	+	srcs.add(complete);
3516	+	srcs.add(incomplete);
3517	+
3518	+	for (CompletableFuture<Integer> src : srcs) {
3519	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3520	+	fs.add(src.thenRunAsync(() -> {}, e));
3521	+	fs.add(src.thenAcceptAsync(z -> {}, e));
3522	+	fs.add(src.thenApplyAsync(z -> z, e));
3523	+
3524	+	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3525	+	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3526	+	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3527	+
3528	+	fs.add(src.applyToEitherAsync(src, z -> z, e));
3529	+	fs.add(src.acceptEitherAsync(src, z -> {}, e));
3530	+	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3531	+
3532	+	fs.add(src.thenComposeAsync(z -> null, e));
3533	+	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3534	+	fs.add(src.handleAsync((z, t) -> null, e));
3535	+
3536	+	for (CompletableFuture<?> future : fs) {
3537	+	if (src.isDone())
3538	+	checkCompletedWithWrappedException(future, e.ex);
3539	+	else
3540	+	checkIncomplete(future);
3541	+	}
3542	+	futures.addAll(fs);
3543	+	}
3544	+
3545	+	{
3546	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3547	+
3548	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3549	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3550	+
3551	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3552	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3553	+
3554	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3555	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3556	+
3557	+	for (CompletableFuture<?> future : fs)
3558	+	checkIncomplete(future);
3559	+	futures.addAll(fs);
3560	+	}
3561	+
3562	+	{
3563	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3564	+
3565	+	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3566	+	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3567	+
3568	+	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3569	+	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3570	+
3571	+	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3572	+	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3573	+
3574	+	for (CompletableFuture<?> future : fs)
3575	+	checkCompletedWithWrappedException(future, e.ex);
3576	+	futures.addAll(fs);
3577	+	}
3578	+
3579	+	incomplete.complete(v);
3580	+
3581	+	for (CompletableFuture<?> future : futures)
3582	+	checkCompletedWithWrappedException(future, e.ex);
3583	+
3584	+	assertEquals(futures.size(), e.count.get());
3585	+	}}
3586	+
3587	+	/**
3588	+	* Test submissions to an executor that rejects all tasks, but
3589	+	* should never be invoked because the dependent future is
3590	+	* explicitly completed.
3591	+	*/
3592	+	public void testRejectingExecutorNeverInvoked() {
3593	+	for (Integer v : new Integer[] { 1, null })
3594	+	{
3595	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3596	+
3597	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3598	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3599	+
3600	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3601	+
3602	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3603	+	srcs.add(complete);
3604	+	srcs.add(incomplete);
3605	+
3606	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3607	+	fs.add(incomplete.thenRunAsync(() -> {}, e));
3608	+	fs.add(incomplete.thenAcceptAsync(z -> {}, e));
3609	+	fs.add(incomplete.thenApplyAsync(z -> z, e));
3610	+
3611	+	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3612	+	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3613	+	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3614	+
3615	+	fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e));
3616	+	fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e));
3617	+	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3618	+
3619	+	fs.add(incomplete.thenComposeAsync(z -> null, e));
3620	+	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3621	+	fs.add(incomplete.handleAsync((z, t) -> null, e));
3622	+
3623	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3624	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3625	+
3626	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3627	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3628	+
3629	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3630	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3631	+
3632	+	for (CompletableFuture<?> future : fs)
3633	+	checkIncomplete(future);
3634	+
3635	+	for (CompletableFuture<?> future : fs)
3636	+	future.complete(null);
3637	+
3638	+	incomplete.complete(v);
3639	+
3640	+	for (CompletableFuture<?> future : fs)
3641	+	checkCompletedNormally(future, null);
3642	+
3643	+	assertEquals(0, e.count.get());
3644	+	}}
3645	+
3646	+	/**
3647		* toCompletableFuture returns this CompletableFuture.
3648		*/
3649		public void testToCompletableFuture() {
#	Line 3271 | Line 3651 | public class CompletableFutureTest exten
3651		assertSame(f, f.toCompletableFuture());
3652		}
3653
3654	+	// jdk9
3655	+
3656	+	/**
3657	+	* newIncompleteFuture returns an incomplete CompletableFuture
3658	+	*/
3659	+	public void testNewIncompleteFuture() {
3660	+	for (Integer v1 : new Integer[] { 1, null })
3661	+	{
3662	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3663	+	CompletableFuture<Integer> g = f.newIncompleteFuture();
3664	+	checkIncomplete(f);
3665	+	checkIncomplete(g);
3666	+	f.complete(v1);
3667	+	checkCompletedNormally(f, v1);
3668	+	checkIncomplete(g);
3669	+	g.complete(v1);
3670	+	checkCompletedNormally(g, v1);
3671	+	assertSame(g.getClass(), CompletableFuture.class);
3672	+	}}
3673	+
3674	+	/**
3675	+	* completedStage returns a completed CompletionStage
3676	+	*/
3677	+	public void testCompletedStage() {
3678	+	AtomicInteger x = new AtomicInteger(0);
3679	+	AtomicReference<Throwable> r = new AtomicReference<>();
3680	+	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3681	+	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3682	+	assertEquals(x.get(), 1);
3683	+	assertNull(r.get());
3684	+	}
3685	+
3686	+	/**
3687	+	* defaultExecutor by default returns the commonPool if
3688	+	* it supports more than one thread.
3689	+	*/
3690	+	public void testDefaultExecutor() {
3691	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3692	+	Executor e = f.defaultExecutor();
3693	+	Executor c = ForkJoinPool.commonPool();
3694	+	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3695	+	assertSame(e, c);
3696	+	else
3697	+	assertNotSame(e, c);
3698	+	}
3699	+
3700	+	/**
3701	+	* failedFuture returns a CompletableFuture completed
3702	+	* exceptionally with the given Exception
3703	+	*/
3704	+	public void testFailedFuture() {
3705	+	CFException ex = new CFException();
3706	+	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3707	+	checkCompletedExceptionally(f, ex);
3708	+	}
3709	+
3710	+	/**
3711	+	* failedFuture(null) throws NPE
3712	+	*/
3713	+	public void testFailedFuture_null() {
3714	+	try {
3715	+	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3716	+	shouldThrow();
3717	+	} catch (NullPointerException success) {}
3718	+	}
3719	+
3720	+	/**
3721	+	* copy returns a CompletableFuture that is completed normally,
3722	+	* with the same value, when source is.
3723	+	*/
3724	+	public void testCopy_normalCompletion() {
3725	+	for (boolean createIncomplete : new boolean[] { true, false })
3726	+	for (Integer v1 : new Integer[] { 1, null })
3727	+	{
3728	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3729	+	if (!createIncomplete) assertTrue(f.complete(v1));
3730	+	CompletableFuture<Integer> g = f.copy();
3731	+	if (createIncomplete) {
3732	+	checkIncomplete(f);
3733	+	checkIncomplete(g);
3734	+	assertTrue(f.complete(v1));
3735	+	}
3736	+	checkCompletedNormally(f, v1);
3737	+	checkCompletedNormally(g, v1);
3738	+	}}
3739	+
3740	+	/**
3741	+	* copy returns a CompletableFuture that is completed exceptionally
3742	+	* when source is.
3743	+	*/
3744	+	public void testCopy_exceptionalCompletion() {
3745	+	for (boolean createIncomplete : new boolean[] { true, false })
3746	+	{
3747	+	CFException ex = new CFException();
3748	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3749	+	if (!createIncomplete) f.completeExceptionally(ex);
3750	+	CompletableFuture<Integer> g = f.copy();
3751	+	if (createIncomplete) {
3752	+	checkIncomplete(f);
3753	+	checkIncomplete(g);
3754	+	f.completeExceptionally(ex);
3755	+	}
3756	+	checkCompletedExceptionally(f, ex);
3757	+	checkCompletedWithWrappedException(g, ex);
3758	+	}}
3759	+
3760	+	/**
3761	+	* Completion of a copy does not complete its source.
3762	+	*/
3763	+	public void testCopy_oneWayPropagation() {
3764	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3765	+	assertTrue(f.copy().complete(1));
3766	+	assertTrue(f.copy().complete(null));
3767	+	assertTrue(f.copy().cancel(true));
3768	+	assertTrue(f.copy().cancel(false));
3769	+	assertTrue(f.copy().completeExceptionally(new CFException()));
3770	+	checkIncomplete(f);
3771	+	}
3772	+
3773	+	/**
3774	+	* minimalCompletionStage returns a CompletableFuture that is
3775	+	* completed normally, with the same value, when source is.
3776	+	*/
3777	+	public void testMinimalCompletionStage() {
3778	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3779	+	CompletionStage<Integer> g = f.minimalCompletionStage();
3780	+	AtomicInteger x = new AtomicInteger(0);
3781	+	AtomicReference<Throwable> r = new AtomicReference<>();
3782	+	checkIncomplete(f);
3783	+	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3784	+	f.complete(1);
3785	+	checkCompletedNormally(f, 1);
3786	+	assertEquals(x.get(), 1);
3787	+	assertNull(r.get());
3788	+	}
3789	+
3790	+	/**
3791	+	* minimalCompletionStage returns a CompletableFuture that is
3792	+	* completed exceptionally when source is.
3793	+	*/
3794	+	public void testMinimalCompletionStage2() {
3795	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3796	+	CompletionStage<Integer> g = f.minimalCompletionStage();
3797	+	AtomicInteger x = new AtomicInteger(0);
3798	+	AtomicReference<Throwable> r = new AtomicReference<>();
3799	+	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3800	+	checkIncomplete(f);
3801	+	CFException ex = new CFException();
3802	+	f.completeExceptionally(ex);
3803	+	checkCompletedExceptionally(f, ex);
3804	+	assertEquals(x.get(), 0);
3805	+	assertEquals(r.get().getCause(), ex);
3806	+	}
3807	+
3808	+	/**
3809	+	* failedStage returns a CompletionStage completed
3810	+	* exceptionally with the given Exception
3811	+	*/
3812	+	public void testFailedStage() {
3813	+	CFException ex = new CFException();
3814	+	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3815	+	AtomicInteger x = new AtomicInteger(0);
3816	+	AtomicReference<Throwable> r = new AtomicReference<>();
3817	+	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3818	+	assertEquals(x.get(), 0);
3819	+	assertEquals(r.get(), ex);
3820	+	}
3821	+
3822	+	/**
3823	+	* completeAsync completes with value of given supplier
3824	+	*/
3825	+	public void testCompleteAsync() {
3826	+	for (Integer v1 : new Integer[] { 1, null })
3827	+	{
3828	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3829	+	f.completeAsync(() -> v1);
3830	+	f.join();
3831	+	checkCompletedNormally(f, v1);
3832	+	}}
3833	+
3834	+	/**
3835	+	* completeAsync completes exceptionally if given supplier throws
3836	+	*/
3837	+	public void testCompleteAsync2() {
3838	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3839	+	CFException ex = new CFException();
3840	+	f.completeAsync(() -> { throw ex; });
3841	+	try {
3842	+	f.join();
3843	+	shouldThrow();
3844	+	} catch (CompletionException success) {}
3845	+	checkCompletedWithWrappedException(f, ex);
3846	+	}
3847	+
3848	+	/**
3849	+	* completeAsync with given executor completes with value of given supplier
3850	+	*/
3851	+	public void testCompleteAsync3() {
3852	+	for (Integer v1 : new Integer[] { 1, null })
3853	+	{
3854	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3855	+	ThreadExecutor executor = new ThreadExecutor();
3856	+	f.completeAsync(() -> v1, executor);
3857	+	assertSame(v1, f.join());
3858	+	checkCompletedNormally(f, v1);
3859	+	assertEquals(1, executor.count.get());
3860	+	}}
3861	+
3862	+	/**
3863	+	* completeAsync with given executor completes exceptionally if
3864	+	* given supplier throws
3865	+	*/
3866	+	public void testCompleteAsync4() {
3867	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3868	+	CFException ex = new CFException();
3869	+	ThreadExecutor executor = new ThreadExecutor();
3870	+	f.completeAsync(() -> { throw ex; }, executor);
3871	+	try {
3872	+	f.join();
3873	+	shouldThrow();
3874	+	} catch (CompletionException success) {}
3875	+	checkCompletedWithWrappedException(f, ex);
3876	+	assertEquals(1, executor.count.get());
3877	+	}
3878	+
3879	+	/**
3880	+	* orTimeout completes with TimeoutException if not complete
3881	+	*/
3882	+	public void testOrTimeout_timesOut() {
3883	+	long timeoutMillis = timeoutMillis();
3884	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3885	+	long startTime = System.nanoTime();
3886	+	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3887	+	checkCompletedWithTimeoutException(f);
3888	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3889	+	}
3890	+
3891	+	/**
3892	+	* orTimeout completes normally if completed before timeout
3893	+	*/
3894	+	public void testOrTimeout_completed() {
3895	+	for (Integer v1 : new Integer[] { 1, null })
3896	+	{
3897	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3898	+	CompletableFuture<Integer> g = new CompletableFuture<>();
3899	+	long startTime = System.nanoTime();
3900	+	f.complete(v1);
3901	+	assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3902	+	assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3903	+	g.complete(v1);
3904	+	checkCompletedNormally(f, v1);
3905	+	checkCompletedNormally(g, v1);
3906	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3907	+	}}
3908	+
3909	+	/**
3910	+	* completeOnTimeout completes with given value if not complete
3911	+	*/
3912	+	public void testCompleteOnTimeout_timesOut() {
3913	+	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3914	+	() -> testCompleteOnTimeout_timesOut(null));
3915	+	}
3916	+
3917	+	/**
3918	+	* completeOnTimeout completes with given value if not complete
3919	+	*/
3920	+	public void testCompleteOnTimeout_timesOut(Integer v) {
3921	+	long timeoutMillis = timeoutMillis();
3922	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3923	+	long startTime = System.nanoTime();
3924	+	assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS));
3925	+	assertSame(v, f.join());
3926	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3927	+	f.complete(99);         // should have no effect
3928	+	checkCompletedNormally(f, v);
3929	+	}
3930	+
3931	+	/**
3932	+	* completeOnTimeout has no effect if completed within timeout
3933	+	*/
3934	+	public void testCompleteOnTimeout_completed() {
3935	+	for (Integer v1 : new Integer[] { 1, null })
3936	+	{
3937	+	CompletableFuture<Integer> f = new CompletableFuture<>();
3938	+	CompletableFuture<Integer> g = new CompletableFuture<>();
3939	+	long startTime = System.nanoTime();
3940	+	f.complete(v1);
3941	+	assertSame(f, f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3942	+	assertSame(g, g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3943	+	g.complete(v1);
3944	+	checkCompletedNormally(f, v1);
3945	+	checkCompletedNormally(g, v1);
3946	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3947	+	}}
3948	+
3949	+	/**
3950	+	* delayedExecutor returns an executor that delays submission
3951	+	*/
3952	+	public void testDelayedExecutor() {
3953	+	testInParallel(() -> testDelayedExecutor(null, null),
3954	+	() -> testDelayedExecutor(null, 1),
3955	+	() -> testDelayedExecutor(new ThreadExecutor(), 1),
3956	+	() -> testDelayedExecutor(new ThreadExecutor(), 1));
3957	+	}
3958	+
3959	+	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
3960	+	long timeoutMillis = timeoutMillis();
3961	+	// Use an "unreasonably long" long timeout to catch lingering threads
3962	+	long longTimeoutMillis = 1000 * 60 * 60 * 24;
3963	+	final Executor delayer, longDelayer;
3964	+	if (executor == null) {
3965	+	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
3966	+	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
3967	+	} else {
3968	+	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
3969	+	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
3970	+	}
3971	+	long startTime = System.nanoTime();
3972	+	CompletableFuture<Integer> f =
3973	+	CompletableFuture.supplyAsync(() -> v, delayer);
3974	+	CompletableFuture<Integer> g =
3975	+	CompletableFuture.supplyAsync(() -> v, longDelayer);
3976	+
3977	+	assertNull(g.getNow(null));
3978	+
3979	+	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
3980	+	long millisElapsed = millisElapsedSince(startTime);
3981	+	assertTrue(millisElapsed >= timeoutMillis);
3982	+	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
3983	+
3984	+	checkCompletedNormally(f, v);
3985	+
3986	+	checkIncomplete(g);
3987	+	assertTrue(g.cancel(true));
3988	+	}
3989	+
3990		//--- tests of implementation details; not part of official tck ---
3991
3992		Object resultOf(CompletableFuture<?> f) {
3993	+	SecurityManager sm = System.getSecurityManager();
3994	+	if (sm != null) {
3995	+	try {
3996	+	System.setSecurityManager(null);
3997	+	} catch (SecurityException giveUp) {
3998	+	return "Reflection not available";
3999	+	}
4000	+	}
4001	+
4002		try {
4003		java.lang.reflect.Field resultField
4004		= CompletableFuture.class.getDeclaredField("result");
4005		resultField.setAccessible(true);
4006		return resultField.get(f);
4007	<	} catch (Throwable t) { throw new AssertionError(t); }
4007	>	} catch (Throwable t) {
4008	>	throw new AssertionError(t);
4009	>	} finally {
4010	>	if (sm != null) System.setSecurityManager(sm);
4011	>	}
4012		}
4013
4014		public void testExceptionPropagationReusesResultObject() {
#	Line 3290 | Line 4019 | public class CompletableFutureTest exten
4019		final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
4020		final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4021
4022	+	final Runnable noopRunnable = new Noop(m);
4023	+	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
4024	+	final Function<Integer, Integer> incFunction = new IncFunction(m);
4025	+
4026		List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
4027		= new ArrayList<>();
4028
4029	<	funs.add((y) -> m.thenRun(y, new Noop(m)));
4030	<	funs.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
4031	<	funs.add((y) -> m.thenApply(y, new IncFunction(m)));
4032	<
4033	<	funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
4034	<	funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
4035	<	funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
4036	<
4037	<	funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
4038	<	funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4039	<	funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
4040	<
4041	<	funs.add((y) -> m.whenComplete(y, (Integer x, Throwable t) -> {}));
4042	<
4043	<	funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
4044	<
4045	<	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
4046	<	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
4029	>	funs.add(y -> m.thenRun(y, noopRunnable));
4030	>	funs.add(y -> m.thenAccept(y, noopConsumer));
4031	>	funs.add(y -> m.thenApply(y, incFunction));
4032	>
4033	>	funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable));
4034	>	funs.add(y -> m.acceptEither(y, incomplete, noopConsumer));
4035	>	funs.add(y -> m.applyToEither(y, incomplete, incFunction));
4036	>
4037	>	funs.add(y -> m.runAfterBoth(y, v42, noopRunnable));
4038	>	funs.add(y -> m.runAfterBoth(v42, y, noopRunnable));
4039	>	funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4040	>	funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
4041	>	funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m)));
4042	>	funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m)));
4043	>
4044	>	funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
4045	>
4046	>	funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m)));
4047	>
4048	>	funs.add(y -> CompletableFuture.allOf(y));
4049	>	funs.add(y -> CompletableFuture.allOf(y, v42));
4050	>	funs.add(y -> CompletableFuture.allOf(v42, y));
4051	>	funs.add(y -> CompletableFuture.anyOf(y));
4052	>	funs.add(y -> CompletableFuture.anyOf(y, incomplete));
4053	>	funs.add(y -> CompletableFuture.anyOf(incomplete, y));
4054
4055		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4056		fun : funs) {
4057		CompletableFuture<Integer> f = new CompletableFuture<>();
4058		f.completeExceptionally(ex);
4059	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4059	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4060		checkCompletedWithWrappedException(src, ex);
4061		CompletableFuture<?> dep = fun.apply(src);
4062		checkCompletedWithWrappedException(dep, ex);
#	Line 3326 | Line 4066 | public class CompletableFutureTest exten
4066		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4067		fun : funs) {
4068		CompletableFuture<Integer> f = new CompletableFuture<>();
4069	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4069	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4070		CompletableFuture<?> dep = fun.apply(src);
4071		f.completeExceptionally(ex);
4072		checkCompletedWithWrappedException(src, ex);
#	Line 3340 | Line 4080 | public class CompletableFutureTest exten
4080		CompletableFuture<Integer> f = new CompletableFuture<>();
4081		f.cancel(mayInterruptIfRunning);
4082		checkCancelled(f);
4083	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4083	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4084		checkCompletedWithWrappedCancellationException(src);
4085		CompletableFuture<?> dep = fun.apply(src);
4086		checkCompletedWithWrappedCancellationException(dep);
#	Line 3351 | Line 4091 | public class CompletableFutureTest exten
4091		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4092		fun : funs) {
4093		CompletableFuture<Integer> f = new CompletableFuture<>();
4094	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4094	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4095		CompletableFuture<?> dep = fun.apply(src);
4096		f.cancel(mayInterruptIfRunning);
4097		checkCancelled(f);
#	Line 3361 | Line 4101 | public class CompletableFutureTest exten
4101		}
4102		}}
4103
4104	+	/**
4105	+	* Minimal completion stages throw UOE for most non-CompletionStage methods
4106	+	*/
4107	+	public void testMinimalCompletionStage_minimality() {
4108	+	if (!testImplementationDetails) return;
4109	+	Function<Method, String> toSignature =
4110	+	method -> method.getName() + Arrays.toString(method.getParameterTypes());
4111	+	Predicate<Method> isNotStatic =
4112	+	method -> (method.getModifiers() & Modifier.STATIC) == 0;
4113	+	List<Method> minimalMethods =
4114	+	Stream.of(Object.class, CompletionStage.class)
4115	+	.flatMap(klazz -> Stream.of(klazz.getMethods()))
4116	+	.filter(isNotStatic)
4117	+	.collect(Collectors.toList());
4118	+	// Methods from CompletableFuture permitted NOT to throw UOE
4119	+	String[] signatureWhitelist = {
4120	+	"newIncompleteFuture[]",
4121	+	"defaultExecutor[]",
4122	+	"minimalCompletionStage[]",
4123	+	"copy[]",
4124	+	};
4125	+	Set<String> permittedMethodSignatures =
4126	+	Stream.concat(minimalMethods.stream().map(toSignature),
4127	+	Stream.of(signatureWhitelist))
4128	+	.collect(Collectors.toSet());
4129	+	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
4130	+	.filter(isNotStatic)
4131	+	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4132	+	.collect(Collectors.toList());
4133	+
4134	+	List<CompletionStage<Integer>> stages = new ArrayList<>();
4135	+	CompletionStage<Integer> min =
4136	+	new CompletableFuture<Integer>().minimalCompletionStage();
4137	+	stages.add(min);
4138	+	stages.add(min.thenApply(x -> x));
4139	+	stages.add(CompletableFuture.completedStage(1));
4140	+	stages.add(CompletableFuture.failedStage(new CFException()));
4141	+
4142	+	List<Method> bugs = new ArrayList<>();
4143	+	for (Method method : allMethods) {
4144	+	Class<?>[] parameterTypes = method.getParameterTypes();
4145	+	Object[] args = new Object[parameterTypes.length];
4146	+	// Manufacture boxed primitives for primitive params
4147	+	for (int i = 0; i < args.length; i++) {
4148	+	Class<?> type = parameterTypes[i];
4149	+	if (parameterTypes[i] == boolean.class)
4150	+	args[i] = false;
4151	+	else if (parameterTypes[i] == int.class)
4152	+	args[i] = 0;
4153	+	else if (parameterTypes[i] == long.class)
4154	+	args[i] = 0L;
4155	+	}
4156	+	for (CompletionStage<Integer> stage : stages) {
4157	+	try {
4158	+	method.invoke(stage, args);
4159	+	bugs.add(method);
4160	+	}
4161	+	catch (java.lang.reflect.InvocationTargetException expected) {
4162	+	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4163	+	bugs.add(method);
4164	+	// expected.getCause().printStackTrace();
4165	+	}
4166	+	}
4167	+	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4168	+	}
4169	+	}
4170	+	if (!bugs.isEmpty())
4171	+	throw new Error("Methods did not throw UOE: " + bugs);
4172	+	}
4173	+
4174	+	/**
4175	+	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4176	+	* is completed normally, with the same value, when source is.
4177	+	*/
4178	+	public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() {
4179	+	for (boolean createIncomplete : new boolean[] { true, false })
4180	+	for (Integer v1 : new Integer[] { 1, null })
4181	+	{
4182	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4183	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4184	+	if (!createIncomplete) assertTrue(f.complete(v1));
4185	+	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4186	+	if (createIncomplete) {
4187	+	checkIncomplete(f);
4188	+	checkIncomplete(g);
4189	+	assertTrue(f.complete(v1));
4190	+	}
4191	+	checkCompletedNormally(f, v1);
4192	+	checkCompletedNormally(g, v1);
4193	+	}}
4194	+
4195	+	/**
4196	+	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4197	+	* is completed exceptionally when source is.
4198	+	*/
4199	+	public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() {
4200	+	for (boolean createIncomplete : new boolean[] { true, false })
4201	+	{
4202	+	CFException ex = new CFException();
4203	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4204	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4205	+	if (!createIncomplete) f.completeExceptionally(ex);
4206	+	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4207	+	if (createIncomplete) {
4208	+	checkIncomplete(f);
4209	+	checkIncomplete(g);
4210	+	f.completeExceptionally(ex);
4211	+	}
4212	+	checkCompletedExceptionally(f, ex);
4213	+	checkCompletedWithWrappedException(g, ex);
4214	+	}}
4215	+
4216	+	/**
4217	+	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4218	+	*/
4219	+	public void testMinimalCompletionStage_toCompletableFuture_mutable() {
4220	+	for (Integer v1 : new Integer[] { 1, null })
4221	+	{
4222	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4223	+	CompletionStage minimal = f.minimalCompletionStage();
4224	+	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4225	+	assertTrue(g.complete(v1));
4226	+	checkCompletedNormally(g, v1);
4227	+	checkIncomplete(f);
4228	+	checkIncomplete(minimal.toCompletableFuture());
4229	+	}}
4230	+
4231	+	/**
4232	+	* minimalStage.toCompletableFuture().join() awaits completion
4233	+	*/
4234	+	public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception {
4235	+	for (boolean createIncomplete : new boolean[] { true, false })
4236	+	for (Integer v1 : new Integer[] { 1, null })
4237	+	{
4238	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4239	+	if (!createIncomplete) assertTrue(f.complete(v1));
4240	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4241	+	if (createIncomplete) assertTrue(f.complete(v1));
4242	+	assertEquals(v1, minimal.toCompletableFuture().join());
4243	+	assertEquals(v1, minimal.toCompletableFuture().get());
4244	+	checkCompletedNormally(minimal.toCompletableFuture(), v1);
4245	+	}}
4246	+
4247	+	/**
4248	+	* Completion of a toCompletableFuture copy of a minimal stage
4249	+	* does not complete its source.
4250	+	*/
4251	+	public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() {
4252	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4253	+	CompletionStage<Integer> g = f.minimalCompletionStage();
4254	+	assertTrue(g.toCompletableFuture().complete(1));
4255	+	assertTrue(g.toCompletableFuture().complete(null));
4256	+	assertTrue(g.toCompletableFuture().cancel(true));
4257	+	assertTrue(g.toCompletableFuture().cancel(false));
4258	+	assertTrue(g.toCompletableFuture().completeExceptionally(new CFException()));
4259	+	checkIncomplete(g.toCompletableFuture());
4260	+	f.complete(1);
4261	+	checkCompletedNormally(g.toCompletableFuture(), 1);
4262	+	}
4263	+
4264	+	/** Demo utility method for external reliable toCompletableFuture */
4265	+	static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) {
4266	+	CompletableFuture<T> f = new CompletableFuture<>();
4267	+	stage.handle((T t, Throwable ex) -> {
4268	+	if (ex != null) f.completeExceptionally(ex);
4269	+	else f.complete(t);
4270	+	return null;
4271	+	});
4272	+	return f;
4273	+	}
4274	+
4275	+	/** Demo utility method to join a CompletionStage */
4276	+	static <T> T join(CompletionStage<T> stage) {
4277	+	return toCompletableFuture(stage).join();
4278	+	}
4279	+
4280	+	/**
4281	+	* Joining a minimal stage "by hand" works
4282	+	*/
4283	+	public void testMinimalCompletionStage_join_by_hand() {
4284	+	for (boolean createIncomplete : new boolean[] { true, false })
4285	+	for (Integer v1 : new Integer[] { 1, null })
4286	+	{
4287	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4288	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4289	+	CompletableFuture<Integer> g = new CompletableFuture<>();
4290	+	if (!createIncomplete) assertTrue(f.complete(v1));
4291	+	minimal.thenAccept(x -> g.complete(x));
4292	+	if (createIncomplete) assertTrue(f.complete(v1));
4293	+	g.join();
4294	+	checkCompletedNormally(g, v1);
4295	+	checkCompletedNormally(f, v1);
4296	+	assertEquals(v1, join(minimal));
4297	+	}}
4298	+
4299	+	static class Monad {
4300	+	static class ZeroException extends RuntimeException {
4301	+	public ZeroException() { super("monadic zero"); }
4302	+	}
4303	+	// "return", "unit"
4304	+	static <T> CompletableFuture<T> unit(T value) {
4305	+	return completedFuture(value);
4306	+	}
4307	+	// monadic zero ?
4308	+	static <T> CompletableFuture<T> zero() {
4309	+	return failedFuture(new ZeroException());
4310	+	}
4311	+	// >=>
4312	+	static <T,U,V> Function<T, CompletableFuture<V>> compose
4313	+	(Function<T, CompletableFuture<U>> f,
4314	+	Function<U, CompletableFuture<V>> g) {
4315	+	return x -> f.apply(x).thenCompose(g);
4316	+	}
4317	+
4318	+	static void assertZero(CompletableFuture<?> f) {
4319	+	try {
4320	+	f.getNow(null);
4321	+	throw new AssertionError("should throw");
4322	+	} catch (CompletionException success) {
4323	+	assertTrue(success.getCause() instanceof ZeroException);
4324	+	}
4325	+	}
4326	+
4327	+	static <T> void assertFutureEquals(CompletableFuture<T> f,
4328	+	CompletableFuture<T> g) {
4329	+	T fval = null, gval = null;
4330	+	Throwable fex = null, gex = null;
4331	+
4332	+	try { fval = f.get(); }
4333	+	catch (ExecutionException ex) { fex = ex.getCause(); }
4334	+	catch (Throwable ex) { fex = ex; }
4335	+
4336	+	try { gval = g.get(); }
4337	+	catch (ExecutionException ex) { gex = ex.getCause(); }
4338	+	catch (Throwable ex) { gex = ex; }
4339	+
4340	+	if (fex != null || gex != null)
4341	+	assertSame(fex.getClass(), gex.getClass());
4342	+	else
4343	+	assertEquals(fval, gval);
4344	+	}
4345	+
4346	+	static class PlusFuture<T> extends CompletableFuture<T> {
4347	+	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4348	+	}
4349	+
4350	+	/** Implements "monadic plus". */
4351	+	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
4352	+	CompletableFuture<? extends T> g) {
4353	+	PlusFuture<T> plus = new PlusFuture<T>();
4354	+	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
4355	+	try {
4356	+	if (ex == null) {
4357	+	if (plus.complete(result))
4358	+	if (plus.firstFailure.get() != null)
4359	+	plus.firstFailure.set(null);
4360	+	}
4361	+	else if (plus.firstFailure.compareAndSet(null, ex)) {
4362	+	if (plus.isDone())
4363	+	plus.firstFailure.set(null);
4364	+	}
4365	+	else {
4366	+	// first failure has precedence
4367	+	Throwable first = plus.firstFailure.getAndSet(null);
4368	+
4369	+	// may fail with "Self-suppression not permitted"
4370	+	try { first.addSuppressed(ex); }
4371	+	catch (Exception ignored) {}
4372	+
4373	+	plus.completeExceptionally(first);
4374	+	}
4375	+	} catch (Throwable unexpected) {
4376	+	plus.completeExceptionally(unexpected);
4377	+	}
4378	+	};
4379	+	f.whenComplete(action);
4380	+	g.whenComplete(action);
4381	+	return plus;
4382	+	}
4383	+	}
4384	+
4385	+	/**
4386	+	* CompletableFuture is an additive monad - sort of.
4387	+	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
4388	+	*/
4389	+	public void testAdditiveMonad() throws Throwable {
4390	+	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
4391	+	CompletableFuture<Long> zero = Monad.zero();
4392	+
4393	+	// Some mutually non-commutative functions
4394	+	Function<Long, CompletableFuture<Long>> triple
4395	+	= x -> Monad.unit(3 * x);
4396	+	Function<Long, CompletableFuture<Long>> inc
4397	+	= x -> Monad.unit(x + 1);
4398	+
4399	+	// unit is a right identity: m >>= unit === m
4400	+	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
4401	+	inc.apply(5L));
4402	+	// unit is a left identity: (unit x) >>= f === f x
4403	+	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
4404	+	inc.apply(5L));
4405	+
4406	+	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4407	+	Monad.assertFutureEquals(
4408	+	unit.apply(5L).thenCompose(inc).thenCompose(triple),
4409	+	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4410	+
4411	+	// The case for CompletableFuture as an additive monad is weaker...
4412	+
4413	+	// zero is a monadic zero
4414	+	Monad.assertZero(zero);
4415	+
4416	+	// left zero: zero >>= f === zero
4417	+	Monad.assertZero(zero.thenCompose(inc));
4418	+	// right zero: f >>= (\x -> zero) === zero
4419	+	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4420	+
4421	+	// f plus zero === f
4422	+	Monad.assertFutureEquals(Monad.unit(5L),
4423	+	Monad.plus(Monad.unit(5L), zero));
4424	+	// zero plus f === f
4425	+	Monad.assertFutureEquals(Monad.unit(5L),
4426	+	Monad.plus(zero, Monad.unit(5L)));
4427	+	// zero plus zero === zero
4428	+	Monad.assertZero(Monad.plus(zero, zero));
4429	+	{
4430	+	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
4431	+	Monad.unit(8L));
4432	+	// non-determinism
4433	+	assertTrue(f.get() == 5L || f.get() == 8L);
4434	+	}
4435	+
4436	+	CompletableFuture<Long> godot = new CompletableFuture<>();
4437	+	// f plus godot === f (doesn't wait for godot)
4438	+	Monad.assertFutureEquals(Monad.unit(5L),
4439	+	Monad.plus(Monad.unit(5L), godot));
4440	+	// godot plus f === f (doesn't wait for godot)
4441	+	Monad.assertFutureEquals(Monad.unit(5L),
4442	+	Monad.plus(godot, Monad.unit(5L)));
4443	+	}
4444	+
4445	+	/** Test long recursive chains of CompletableFutures with cascading completions */
4446	+	@SuppressWarnings("FutureReturnValueIgnored")
4447	+	public void testRecursiveChains() throws Throwable {
4448	+	for (ExecutionMode m : ExecutionMode.values())
4449	+	for (boolean addDeadEnds : new boolean[] { true, false })
4450	+	{
4451	+	final int val = 42;
4452	+	final int n = expensiveTests ? 1_000 : 2;
4453	+	CompletableFuture<Integer> head = new CompletableFuture<>();
4454	+	CompletableFuture<Integer> tail = head;
4455	+	for (int i = 0; i < n; i++) {
4456	+	if (addDeadEnds) m.thenApply(tail, v -> v + 1);
4457	+	tail = m.thenApply(tail, v -> v + 1);
4458	+	if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1);
4459	+	tail = m.applyToEither(tail, tail, v -> v + 1);
4460	+	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1);
4461	+	tail = m.thenCombine(tail, tail, (v, w) -> v + 1);
4462	+	}
4463	+	head.complete(val);
4464	+	assertEquals(val + 3 * n, (int) tail.join());
4465	+	}}
4466	+
4467	+	/**
4468	+	* A single CompletableFuture with many dependents.
4469	+	* A demo of scalability - runtime is O(n).
4470	+	*/
4471	+	@SuppressWarnings("FutureReturnValueIgnored")
4472	+	public void testManyDependents() throws Throwable {
4473	+	final int n = expensiveTests ? 1_000_000 : 10;
4474	+	final CompletableFuture<Void> head = new CompletableFuture<>();
4475	+	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4476	+	final AtomicInteger count = new AtomicInteger(0);
4477	+	for (int i = 0; i < n; i++) {
4478	+	head.thenRun(() -> count.getAndIncrement());
4479	+	head.thenAccept(x -> count.getAndIncrement());
4480	+	head.thenApply(x -> count.getAndIncrement());
4481	+
4482	+	head.runAfterBoth(complete, () -> count.getAndIncrement());
4483	+	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
4484	+	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
4485	+	complete.runAfterBoth(head, () -> count.getAndIncrement());
4486	+	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
4487	+	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4488	+
4489	+	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4490	+	head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4491	+	head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4492	+	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4493	+	new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement());
4494	+	new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement());
4495	+	}
4496	+	head.complete(null);
4497	+	assertEquals(5 * 3 * n, count.get());
4498	+	}
4499	+
4500	+	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4501	+	@SuppressWarnings("FutureReturnValueIgnored")
4502	+	public void testCoCompletionGarbageRetention() throws Throwable {
4503	+	final int n = expensiveTests ? 1_000_000 : 10;
4504	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4505	+	CompletableFuture<Integer> f;
4506	+	for (int i = 0; i < n; i++) {
4507	+	f = new CompletableFuture<>();
4508	+	f.runAfterEither(incomplete, () -> {});
4509	+	f.complete(null);
4510	+
4511	+	f = new CompletableFuture<>();
4512	+	f.acceptEither(incomplete, x -> {});
4513	+	f.complete(null);
4514	+
4515	+	f = new CompletableFuture<>();
4516	+	f.applyToEither(incomplete, x -> x);
4517	+	f.complete(null);
4518	+
4519	+	f = new CompletableFuture<>();
4520	+	CompletableFuture.anyOf(f, incomplete);
4521	+	f.complete(null);
4522	+	}
4523	+
4524	+	for (int i = 0; i < n; i++) {
4525	+	f = new CompletableFuture<>();
4526	+	incomplete.runAfterEither(f, () -> {});
4527	+	f.complete(null);
4528	+
4529	+	f = new CompletableFuture<>();
4530	+	incomplete.acceptEither(f, x -> {});
4531	+	f.complete(null);
4532	+
4533	+	f = new CompletableFuture<>();
4534	+	incomplete.applyToEither(f, x -> x);
4535	+	f.complete(null);
4536	+
4537	+	f = new CompletableFuture<>();
4538	+	CompletableFuture.anyOf(incomplete, f);
4539	+	f.complete(null);
4540	+	}
4541	+	}
4542	+
4543	+	/**
4544	+	* Reproduction recipe for:
4545	+	* 8160402: Garbage retention with CompletableFuture.anyOf
4546	+	* cvs update -D '2016-05-01' ./src/main/java/util/concurrent/CompletableFuture.java && ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testAnyOfGarbageRetention tck; cvs update -A
4547	+	*/
4548	+	public void testAnyOfGarbageRetention() throws Throwable {
4549	+	for (Integer v : new Integer[] { 1, null })
4550	+	{
4551	+	final int n = expensiveTests ? 100_000 : 10;
4552	+	CompletableFuture<Integer>[] fs
4553	+	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4554	+	for (int i = 0; i < fs.length; i++)
4555	+	fs[i] = new CompletableFuture<>();
4556	+	fs[fs.length - 1].complete(v);
4557	+	for (int i = 0; i < n; i++)
4558	+	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4559	+	}}
4560	+
4561	+	/**
4562	+	* Checks for garbage retention with allOf.
4563	+	*
4564	+	* As of 2016-07, fails with OOME:
4565	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4566	+	*/
4567	+	public void testCancelledAllOfGarbageRetention() throws Throwable {
4568	+	final int n = expensiveTests ? 100_000 : 10;
4569	+	CompletableFuture<Integer>[] fs
4570	+	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4571	+	for (int i = 0; i < fs.length; i++)
4572	+	fs[i] = new CompletableFuture<>();
4573	+	for (int i = 0; i < n; i++)
4574	+	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4575	+	}
4576	+
4577	+	/**
4578	+	* Checks for garbage retention when a dependent future is
4579	+	* cancelled and garbage-collected.
4580	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4581	+	*
4582	+	* As of 2016-07, fails with OOME:
4583	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4584	+	*/
4585	+	public void testCancelledGarbageRetention() throws Throwable {
4586	+	final int n = expensiveTests ? 100_000 : 10;
4587	+	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4588	+	for (int i = 0; i < n; i++)
4589	+	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4590	+	}
4591	+
4592	+	/**
4593	+	* Checks for garbage retention when MinimalStage.toCompletableFuture()
4594	+	* is invoked many times.
4595	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4596	+	*
4597	+	* As of 2016-07, fails with OOME:
4598	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck
4599	+	*/
4600	+	public void testToCompletableFutureGarbageRetention() throws Throwable {
4601	+	final int n = expensiveTests ? 900_000 : 10;
4602	+	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4603	+	CompletionStage minimal = neverCompleted.minimalCompletionStage();
4604	+	for (int i = 0; i < n; i++)
4605	+	assertTrue(minimal.toCompletableFuture().cancel(true));
4606	+	}
4607	+
4608	+	//     static <U> U join(CompletionStage<U> stage) {
4609	+	//         CompletableFuture<U> f = new CompletableFuture<>();
4610	+	//         stage.whenComplete((v, ex) -> {
4611	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4612	+	//         });
4613	+	//         return f.join();
4614	+	//     }
4615	+
4616	+	//     static <U> boolean isDone(CompletionStage<U> stage) {
4617	+	//         CompletableFuture<U> f = new CompletableFuture<>();
4618	+	//         stage.whenComplete((v, ex) -> {
4619	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4620	+	//         });
4621	+	//         return f.isDone();
4622	+	//     }
4623	+
4624	+	//     static <U> U join2(CompletionStage<U> stage) {
4625	+	//         return stage.toCompletableFuture().copy().join();
4626	+	//     }
4627	+
4628	+	//     static <U> boolean isDone2(CompletionStage<U> stage) {
4629	+	//         return stage.toCompletableFuture().copy().isDone();
4630	+	//     }
4631	+
4632	+	// For testing default implementations
4633	+	// Only non-default interface methods defined.
4634	+	static final class DelegatedCompletionStage<T> implements CompletionStage<T> {
4635	+	final CompletableFuture<T> cf;
4636	+	DelegatedCompletionStage(CompletableFuture<T> cf) { this.cf = cf; }
4637	+	public CompletableFuture<T> toCompletableFuture() {
4638	+	return cf; }
4639	+	public CompletionStage<Void> thenRun
4640	+	(Runnable action) {
4641	+	return cf.thenRun(action); }
4642	+	public CompletionStage<Void> thenRunAsync
4643	+	(Runnable action) {
4644	+	return cf.thenRunAsync(action); }
4645	+	public CompletionStage<Void> thenRunAsync
4646	+	(Runnable action,
4647	+	Executor executor) {
4648	+	return cf.thenRunAsync(action, executor); }
4649	+	public CompletionStage<Void> thenAccept
4650	+	(Consumer<? super T> action) {
4651	+	return cf.thenAccept(action); }
4652	+	public CompletionStage<Void> thenAcceptAsync
4653	+	(Consumer<? super T> action) {
4654	+	return cf.thenAcceptAsync(action); }
4655	+	public CompletionStage<Void> thenAcceptAsync
4656	+	(Consumer<? super T> action,
4657	+	Executor executor) {
4658	+	return cf.thenAcceptAsync(action, executor); }
4659	+	public <U> CompletionStage<U> thenApply
4660	+	(Function<? super T,? extends U> a) {
4661	+	return cf.thenApply(a); }
4662	+	public <U> CompletionStage<U> thenApplyAsync
4663	+	(Function<? super T,? extends U> fn) {
4664	+	return cf.thenApplyAsync(fn); }
4665	+	public <U> CompletionStage<U> thenApplyAsync
4666	+	(Function<? super T,? extends U> fn,
4667	+	Executor executor) {
4668	+	return cf.thenApplyAsync(fn, executor); }
4669	+	public <U,V> CompletionStage<V> thenCombine
4670	+	(CompletionStage<? extends U> other,
4671	+	BiFunction<? super T,? super U,? extends V> fn) {
4672	+	return cf.thenCombine(other, fn); }
4673	+	public <U,V> CompletionStage<V> thenCombineAsync
4674	+	(CompletionStage<? extends U> other,
4675	+	BiFunction<? super T,? super U,? extends V> fn) {
4676	+	return cf.thenCombineAsync(other, fn); }
4677	+	public <U,V> CompletionStage<V> thenCombineAsync
4678	+	(CompletionStage<? extends U> other,
4679	+	BiFunction<? super T,? super U,? extends V> fn,
4680	+	Executor executor) {
4681	+	return cf.thenCombineAsync(other, fn, executor); }
4682	+	public <U> CompletionStage<Void> thenAcceptBoth
4683	+	(CompletionStage<? extends U> other,
4684	+	BiConsumer<? super T, ? super U> action) {
4685	+	return cf.thenAcceptBoth(other, action); }
4686	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4687	+	(CompletionStage<? extends U> other,
4688	+	BiConsumer<? super T, ? super U> action) {
4689	+	return cf.thenAcceptBothAsync(other, action); }
4690	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4691	+	(CompletionStage<? extends U> other,
4692	+	BiConsumer<? super T, ? super U> action,
4693	+	Executor executor) {
4694	+	return cf.thenAcceptBothAsync(other, action, executor); }
4695	+	public CompletionStage<Void> runAfterBoth
4696	+	(CompletionStage<?> other,
4697	+	Runnable action) {
4698	+	return cf.runAfterBoth(other, action); }
4699	+	public CompletionStage<Void> runAfterBothAsync
4700	+	(CompletionStage<?> other,
4701	+	Runnable action) {
4702	+	return cf.runAfterBothAsync(other, action); }
4703	+	public CompletionStage<Void> runAfterBothAsync
4704	+	(CompletionStage<?> other,
4705	+	Runnable action,
4706	+	Executor executor) {
4707	+	return cf.runAfterBothAsync(other, action, executor); }
4708	+	public <U> CompletionStage<U> applyToEither
4709	+	(CompletionStage<? extends T> other,
4710	+	Function<? super T, U> fn) {
4711	+	return cf.applyToEither(other, fn); }
4712	+	public <U> CompletionStage<U> applyToEitherAsync
4713	+	(CompletionStage<? extends T> other,
4714	+	Function<? super T, U> fn) {
4715	+	return cf.applyToEitherAsync(other, fn); }
4716	+	public <U> CompletionStage<U> applyToEitherAsync
4717	+	(CompletionStage<? extends T> other,
4718	+	Function<? super T, U> fn,
4719	+	Executor executor) {
4720	+	return cf.applyToEitherAsync(other, fn, executor); }
4721	+	public CompletionStage<Void> acceptEither
4722	+	(CompletionStage<? extends T> other,
4723	+	Consumer<? super T> action) {
4724	+	return cf.acceptEither(other, action); }
4725	+	public CompletionStage<Void> acceptEitherAsync
4726	+	(CompletionStage<? extends T> other,
4727	+	Consumer<? super T> action) {
4728	+	return cf.acceptEitherAsync(other, action); }
4729	+	public CompletionStage<Void> acceptEitherAsync
4730	+	(CompletionStage<? extends T> other,
4731	+	Consumer<? super T> action,
4732	+	Executor executor) {
4733	+	return cf.acceptEitherAsync(other, action, executor); }
4734	+	public CompletionStage<Void> runAfterEither
4735	+	(CompletionStage<?> other,
4736	+	Runnable action) {
4737	+	return cf.runAfterEither(other, action); }
4738	+	public CompletionStage<Void> runAfterEitherAsync
4739	+	(CompletionStage<?> other,
4740	+	Runnable action) {
4741	+	return cf.runAfterEitherAsync(other, action); }
4742	+	public CompletionStage<Void> runAfterEitherAsync
4743	+	(CompletionStage<?> other,
4744	+	Runnable action,
4745	+	Executor executor) {
4746	+	return cf.runAfterEitherAsync(other, action, executor); }
4747	+	public <U> CompletionStage<U> thenCompose
4748	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4749	+	return cf.thenCompose(fn); }
4750	+	public <U> CompletionStage<U> thenComposeAsync
4751	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4752	+	return cf.thenComposeAsync(fn); }
4753	+	public <U> CompletionStage<U> thenComposeAsync
4754	+	(Function<? super T, ? extends CompletionStage<U>> fn,
4755	+	Executor executor) {
4756	+	return cf.thenComposeAsync(fn, executor); }
4757	+	public <U> CompletionStage<U> handle
4758	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4759	+	return cf.handle(fn); }
4760	+	public <U> CompletionStage<U> handleAsync
4761	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4762	+	return cf.handleAsync(fn); }
4763	+	public <U> CompletionStage<U> handleAsync
4764	+	(BiFunction<? super T, Throwable, ? extends U> fn,
4765	+	Executor executor) {
4766	+	return cf.handleAsync(fn, executor); }
4767	+	public CompletionStage<T> whenComplete
4768	+	(BiConsumer<? super T, ? super Throwable> action) {
4769	+	return cf.whenComplete(action); }
4770	+	public CompletionStage<T> whenCompleteAsync
4771	+	(BiConsumer<? super T, ? super Throwable> action) {
4772	+	return cf.whenCompleteAsync(action); }
4773	+	public CompletionStage<T> whenCompleteAsync
4774	+	(BiConsumer<? super T, ? super Throwable> action,
4775	+	Executor executor) {
4776	+	return cf.whenCompleteAsync(action, executor); }
4777	+	public CompletionStage<T> exceptionally
4778	+	(Function<Throwable, ? extends T> fn) {
4779	+	return cf.exceptionally(fn); }
4780	+	}
4781	+
4782	+	/**
4783	+	* default-implemented exceptionallyAsync action completes with
4784	+	* function value on source exception
4785	+	*/
4786	+	public void testDefaultExceptionallyAsync_exceptionalCompletion() {
4787	+	for (boolean createIncomplete : new boolean[] { true, false })
4788	+	for (Integer v1 : new Integer[] { 1, null })
4789	+	{
4790	+	final AtomicInteger a = new AtomicInteger(0);
4791	+	final CFException ex = new CFException();
4792	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4793	+	final DelegatedCompletionStage<Integer> d =
4794	+	new DelegatedCompletionStage<Integer>(f);
4795	+	if (!createIncomplete) f.completeExceptionally(ex);
4796	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4797	+	((Throwable t) -> {
4798	+	threadAssertSame(t, ex);
4799	+	a.getAndIncrement();
4800	+	return v1;
4801	+	});
4802	+	if (createIncomplete) f.completeExceptionally(ex);
4803	+
4804	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4805	+	assertEquals(1, a.get());
4806	+	}}
4807	+
4808	+	/**
4809	+	* Under default implementation, if an "exceptionally action"
4810	+	* throws an exception, it completes exceptionally with that
4811	+	* exception
4812	+	*/
4813	+	public void testDefaultExceptionallyAsync_exceptionalCompletionActionFailed() {
4814	+	for (boolean createIncomplete : new boolean[] { true, false })
4815	+	{
4816	+	final AtomicInteger a = new AtomicInteger(0);
4817	+	final CFException ex1 = new CFException();
4818	+	final CFException ex2 = new CFException();
4819	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4820	+	final DelegatedCompletionStage<Integer> d =
4821	+	new DelegatedCompletionStage<Integer>(f);
4822	+	if (!createIncomplete) f.completeExceptionally(ex1);
4823	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4824	+	((Throwable t) -> {
4825	+	threadAssertSame(t, ex1);
4826	+	a.getAndIncrement();
4827	+	throw ex2;
4828	+	});
4829	+	if (createIncomplete) f.completeExceptionally(ex1);
4830	+
4831	+	checkCompletedWithWrappedException(g.toCompletableFuture(), ex2);
4832	+	checkCompletedExceptionally(f, ex1);
4833	+	checkCompletedExceptionally(d.toCompletableFuture(), ex1);
4834	+	assertEquals(1, a.get());
4835	+	}}
4836	+
4837	+	/**
4838	+	* default exceptionallyCompose result completes normally after normal
4839	+	* completion of source
4840	+	*/
4841	+	public void testDefaultExceptionallyCompose_normalCompletion() {
4842	+	for (boolean createIncomplete : new boolean[] { true, false })
4843	+	for (Integer v1 : new Integer[] { 1, null })
4844	+	{
4845	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4846	+	final ExceptionalCompletableFutureFunction r =
4847	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4848	+	final DelegatedCompletionStage<Integer> d =
4849	+	new DelegatedCompletionStage<Integer>(f);
4850	+	if (!createIncomplete) assertTrue(f.complete(v1));
4851	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4852	+	if (createIncomplete) assertTrue(f.complete(v1));
4853	+
4854	+	checkCompletedNormally(f, v1);
4855	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4856	+	r.assertNotInvoked();
4857	+	}}
4858	+
4859	+	/**
4860	+	* default-implemented exceptionallyCompose result completes
4861	+	* normally after exceptional completion of source
4862	+	*/
4863	+	public void testDefaultExceptionallyCompose_exceptionalCompletion() {
4864	+	for (boolean createIncomplete : new boolean[] { true, false })
4865	+	{
4866	+	final CFException ex = new CFException();
4867	+	final ExceptionalCompletableFutureFunction r =
4868	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4869	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4870	+	final DelegatedCompletionStage<Integer> d =
4871	+	new DelegatedCompletionStage<Integer>(f);
4872	+	if (!createIncomplete) f.completeExceptionally(ex);
4873	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4874	+	if (createIncomplete) f.completeExceptionally(ex);
4875	+
4876	+	checkCompletedExceptionally(f, ex);
4877	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
4878	+	r.assertInvoked();
4879	+	}}
4880	+
4881	+	/**
4882	+	* default-implemented exceptionallyCompose completes
4883	+	* exceptionally on exception if action does
4884	+	*/
4885	+	public void testDefaultExceptionallyCompose_actionFailed() {
4886	+	for (boolean createIncomplete : new boolean[] { true, false })
4887	+	for (Integer v1 : new Integer[] { 1, null })
4888	+	{
4889	+	final CFException ex = new CFException();
4890	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4891	+	final FailingExceptionalCompletableFutureFunction r
4892	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4893	+	final DelegatedCompletionStage<Integer> d =
4894	+	new DelegatedCompletionStage<Integer>(f);
4895	+	if (!createIncomplete) f.completeExceptionally(ex);
4896	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4897	+	if (createIncomplete) f.completeExceptionally(ex);
4898	+
4899	+	checkCompletedExceptionally(f, ex);
4900	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4901	+	r.assertInvoked();
4902	+	}}
4903	+
4904	+	/**
4905	+	* default exceptionallyComposeAsync result completes normally after normal
4906	+	* completion of source
4907	+	*/
4908	+	public void testDefaultExceptionallyComposeAsync_normalCompletion() {
4909	+	for (boolean createIncomplete : new boolean[] { true, false })
4910	+	for (Integer v1 : new Integer[] { 1, null })
4911	+	{
4912	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4913	+	final ExceptionalCompletableFutureFunction r =
4914	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4915	+	final DelegatedCompletionStage<Integer> d =
4916	+	new DelegatedCompletionStage<Integer>(f);
4917	+	if (!createIncomplete) assertTrue(f.complete(v1));
4918	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4919	+	if (createIncomplete) assertTrue(f.complete(v1));
4920	+
4921	+	checkCompletedNormally(f, v1);
4922	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4923	+	r.assertNotInvoked();
4924	+	}}
4925	+
4926	+	/**
4927	+	* default-implemented exceptionallyComposeAsync result completes
4928	+	* normally after exceptional completion of source
4929	+	*/
4930	+	public void testDefaultExceptionallyComposeAsync_exceptionalCompletion() {
4931	+	for (boolean createIncomplete : new boolean[] { true, false })
4932	+	{
4933	+	final CFException ex = new CFException();
4934	+	final ExceptionalCompletableFutureFunction r =
4935	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4936	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4937	+	final DelegatedCompletionStage<Integer> d =
4938	+	new DelegatedCompletionStage<Integer>(f);
4939	+	if (!createIncomplete) f.completeExceptionally(ex);
4940	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4941	+	if (createIncomplete) f.completeExceptionally(ex);
4942	+
4943	+	checkCompletedExceptionally(f, ex);
4944	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
4945	+	r.assertInvoked();
4946	+	}}
4947	+
4948	+	/**
4949	+	* default-implemented exceptionallyComposeAsync completes
4950	+	* exceptionally on exception if action does
4951	+	*/
4952	+	public void testDefaultExceptionallyComposeAsync_actionFailed() {
4953	+	for (boolean createIncomplete : new boolean[] { true, false })
4954	+	for (Integer v1 : new Integer[] { 1, null })
4955	+	{
4956	+	final CFException ex = new CFException();
4957	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4958	+	final FailingExceptionalCompletableFutureFunction r
4959	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4960	+	final DelegatedCompletionStage<Integer> d =
4961	+	new DelegatedCompletionStage<Integer>(f);
4962	+	if (!createIncomplete) f.completeExceptionally(ex);
4963	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4964	+	if (createIncomplete) f.completeExceptionally(ex);
4965	+
4966	+	checkCompletedExceptionally(f, ex);
4967	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4968	+	r.assertInvoked();
4969	+	}}
4970	+
4971	+
4972	+	/**
4973	+	* default exceptionallyComposeAsync result completes normally after normal
4974	+	* completion of source
4975	+	*/
4976	+	public void testDefaultExceptionallyComposeAsyncExecutor_normalCompletion() {
4977	+	for (boolean createIncomplete : new boolean[] { true, false })
4978	+	for (Integer v1 : new Integer[] { 1, null })
4979	+	{
4980	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4981	+	final ExceptionalCompletableFutureFunction r =
4982	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
4983	+	final DelegatedCompletionStage<Integer> d =
4984	+	new DelegatedCompletionStage<Integer>(f);
4985	+	if (!createIncomplete) assertTrue(f.complete(v1));
4986	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r,  new ThreadExecutor());
4987	+	if (createIncomplete) assertTrue(f.complete(v1));
4988	+
4989	+	checkCompletedNormally(f, v1);
4990	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4991	+	r.assertNotInvoked();
4992	+	}}
4993	+
4994	+	/**
4995	+	* default-implemented exceptionallyComposeAsync result completes
4996	+	* normally after exceptional completion of source
4997	+	*/
4998	+	public void testDefaultExceptionallyComposeAsyncExecutor_exceptionalCompletion() {
4999	+	for (boolean createIncomplete : new boolean[] { true, false })
5000	+	{
5001	+	final CFException ex = new CFException();
5002	+	final ExceptionalCompletableFutureFunction r =
5003	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5004	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5005	+	final DelegatedCompletionStage<Integer> d =
5006	+	new DelegatedCompletionStage<Integer>(f);
5007	+	if (!createIncomplete) f.completeExceptionally(ex);
5008	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r,  new ThreadExecutor());
5009	+	if (createIncomplete) f.completeExceptionally(ex);
5010	+
5011	+	checkCompletedExceptionally(f, ex);
5012	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5013	+	r.assertInvoked();
5014	+	}}
5015	+
5016	+	/**
5017	+	* default-implemented exceptionallyComposeAsync completes
5018	+	* exceptionally on exception if action does
5019	+	*/
5020	+	public void testDefaultExceptionallyComposeAsyncExecutor_actionFailed() {
5021	+	for (boolean createIncomplete : new boolean[] { true, false })
5022	+	for (Integer v1 : new Integer[] { 1, null })
5023	+	{
5024	+	final CFException ex = new CFException();
5025	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5026	+	final FailingExceptionalCompletableFutureFunction r
5027	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5028	+	final DelegatedCompletionStage<Integer> d =
5029	+	new DelegatedCompletionStage<Integer>(f);
5030	+	if (!createIncomplete) f.completeExceptionally(ex);
5031	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r,  new ThreadExecutor());
5032	+	if (createIncomplete) f.completeExceptionally(ex);
5033	+
5034	+	checkCompletedExceptionally(f, ex);
5035	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5036	+	r.assertInvoked();
5037	+	}}
5038	+
5039		}

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