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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.108 by jsr166, Thu Sep 3 17:45:22 2015 UTC vs.
Revision 1.222 by jsr166, Mon Dec 16 21:18:49 2019 UTC

#	Line 7 | Line 7
7
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;
25		import java.util.concurrent.CancellationException;
26		import java.util.concurrent.CompletableFuture;
#	Line 20 | Line 30 | import java.util.concurrent.ExecutionExc
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;
24	–	import java.util.concurrent.TimeUnit;
35		import java.util.concurrent.atomic.AtomicInteger;
36		import java.util.concurrent.atomic.AtomicReference;
37		import java.util.function.BiConsumer;
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;
#	Line 47 | 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());
67	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
68	<	try {
69	<	assertEquals(value, f.getNow(null));
70	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
71	<	try {
72	<	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); }
89	<	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);
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 {
98	<	f.getNow(null);
99	<	shouldThrow();
100	<	} catch (CompletionException success) {
101	<	assertTrue(success.getCause() instanceof CFException);
102	<	}
103	<	try {
104	<	f.get();
105	<	shouldThrow();
106	<	} catch (ExecutionException success) {
107	<	assertTrue(success.getCause() instanceof CFException);
108	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
109	<	assertTrue(f.isDone());
110	<	assertFalse(f.isCancelled());
111	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
112	<	}
113	>	checker.accept(cause);
114
114	–	<U> void checkCompletedExceptionallyWithRootCause(CompletableFuture<U> f,
115	–	Throwable ex) {
115		long startTime = System.nanoTime();
117	–	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
145	–	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 checkCompletedExceptionallyWithTimeout(CompletableFuture<U> f) {
152	<	long startTime = System.nanoTime();
153	<	long timeoutMillis = LONG_DELAY_MS;
154	<	try {
154	<	f.get(timeoutMillis, MILLISECONDS);
155	<	shouldThrow();
156	<	} catch (ExecutionException ex) {
157	<	assertTrue(ex.getCause() instanceof TimeoutException);
158	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
159	<	assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
160	<
161	<	try {
162	<	f.join();
163	<	shouldThrow();
164	<	} catch (Throwable ex) {
165	<	assertTrue(ex.getCause() instanceof TimeoutException);
166	<	}
167	<
168	<	try {
169	<	f.getNow(null);
170	<	shouldThrow();
171	<	} catch (Throwable ex) {
172	<	assertTrue(ex.getCause() instanceof TimeoutException);
173	<	}
151	>	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
152	>	checkCompletedExceptionally(f, true,
153	>	t -> assertTrue(t instanceof CFException));
154	>	}
155
156	<	try {
157	<	f.get();
158	<	shouldThrow();
159	<	} catch (ExecutionException ex) {
179	<	assertTrue(ex.getCause() instanceof TimeoutException);
180	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
156	>	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
157	>	checkCompletedExceptionally(f, true,
158	>	t -> assertTrue(t instanceof CancellationException));
159	>	}
160
161	<	assertTrue(f.isDone());
162	<	assertFalse(f.isCancelled());
163	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
161	>	void checkCompletedWithTimeoutException(CompletableFuture<?> f) {
162	>	checkCompletedExceptionally(f, false,
163	>	t -> assertTrue(t instanceof TimeoutException));
164		}
165
166	<	<U> void checkCompletedWithWrappedException(CompletableFuture<U> f,
167	<	Throwable ex) {
168	<	checkCompletedExceptionallyWithRootCause(f, ex);
190	<	try {
191	<	CompletableFuture<Throwable> spy = f.handle
192	<	((U u, Throwable t) -> t);
193	<	assertTrue(spy.join() instanceof CompletionException);
194	<	assertSame(ex, spy.join().getCause());
195	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
166	>	void checkCompletedWithWrappedException(CompletableFuture<?> f,
167	>	Throwable ex) {
168	>	checkCompletedExceptionally(f, true, t -> assertSame(t, ex));
169		}
170
171	<	<U> void checkCompletedExceptionally(CompletableFuture<U> f, Throwable ex) {
172	<	checkCompletedExceptionallyWithRootCause(f, ex);
200	<	try {
201	<	CompletableFuture<Throwable> spy = f.handle
202	<	((U u, Throwable t) -> t);
203	<	assertSame(ex, spy.join());
204	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
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();
209	–	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 227 | Line 194 | public class CompletableFutureTest exten
194		shouldThrow();
195		} catch (CancellationException success) {
196		} catch (Throwable fail) { threadUnexpectedException(fail); }
230	–	assertTrue(f.isDone());
231	–	assertTrue(f.isCompletedExceptionally());
232	–	assertTrue(f.isCancelled());
233	–	assertTrue(f.toString().contains("[Completed exceptionally]"));
234	–	}
197
198	<	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
237	<	long startTime = System.nanoTime();
238	<	long timeoutMillis = LONG_DELAY_MS;
239	<	try {
240	<	f.get(timeoutMillis, MILLISECONDS);
241	<	shouldThrow();
242	<	} catch (ExecutionException success) {
243	<	assertTrue(success.getCause() instanceof CancellationException);
244	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
245	<	assertTrue(millisElapsedSince(startTime) < timeoutMillis/2);
198	>	assertTrue(exceptionalCompletion(f) instanceof CancellationException);
199
247	–	try {
248	–	f.join();
249	–	shouldThrow();
250	–	} catch (CompletionException success) {
251	–	assertTrue(success.getCause() instanceof CancellationException);
252	–	}
253	–	try {
254	–	f.getNow(null);
255	–	shouldThrow();
256	–	} catch (CompletionException success) {
257	–	assertTrue(success.getCause() instanceof CancellationException);
258	–	}
259	–	try {
260	–	f.get();
261	–	shouldThrow();
262	–	} catch (ExecutionException success) {
263	–	assertTrue(success.getCause() instanceof CancellationException);
264	–	} catch (Throwable fail) { threadUnexpectedException(fail); }
200		assertTrue(f.isDone());
266	–	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 364 | 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 401 | 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 429 | 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 441 | 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 450 | 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 469 | 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 479 | 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 497 | 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 507 | 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 517 | 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	<	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<>();
597	<	assertTrue(f.complete(inc(x)));
598	<	return f;
554	>	return CompletableFuture.completedFuture(inc(x));
555		}
556		}
557
558	<	class FailingCompletableFutureFunction extends CheckedIntegerAction
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	>	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 704 | 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		},
708	–
704		ASYNC {
705		public void checkExecutionMode() {
706		assertEquals(defaultExecutorIsCommonPool,
#	Line 778 | 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 851 | 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 893 | 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 900 | 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);
929	>	final AtomicInteger ran = 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) -> {
934	<	// Should not be called
935	<	a.getAndIncrement();
913	<	throw new AssertionError();
932	>	final CompletableFuture<Integer> g = m.exceptionally
933	>	(f, (Throwable t) -> {
934	>	ran.getAndIncrement();
935	>	throw new AssertionError("should not be called");
936		});
937		if (createIncomplete) assertTrue(f.complete(v1));
938
939		checkCompletedNormally(g, v1);
940		checkCompletedNormally(f, v1);
941	<	assertEquals(0, a.get());
941	>	assertEquals(0, ran.get());
942		}}
943
944		/**
#	Line 924 | Line 946 | public class CompletableFutureTest exten
946		* exception
947		*/
948		public void testExceptionally_exceptionalCompletion() {
949	+	for (ExecutionMode m : ExecutionMode.values())
950		for (boolean createIncomplete : new boolean[] { true, false })
951		for (Integer v1 : new Integer[] { 1, null })
952		{
953	<	final AtomicInteger a = new AtomicInteger(0);
953	>	final AtomicInteger ran = new AtomicInteger(0);
954		final CFException ex = new CFException();
955		final CompletableFuture<Integer> f = new CompletableFuture<>();
956		if (!createIncomplete) f.completeExceptionally(ex);
957	<	final CompletableFuture<Integer> g = f.exceptionally
958	<	((Throwable t) -> {
959	<	ExecutionMode.SYNC.checkExecutionMode();
960	<	threadAssertSame(t, ex);
961	<	a.getAndIncrement();
957	>	final CompletableFuture<Integer> g = m.exceptionally
958	>	(f, (Throwable t) -> {
959	>	m.checkExecutionMode();
960	>	assertSame(t, ex);
961	>	ran.getAndIncrement();
962		return v1;
963		});
964		if (createIncomplete) f.completeExceptionally(ex);
965
966		checkCompletedNormally(g, v1);
967	<	assertEquals(1, a.get());
967	>	assertEquals(1, ran.get());
968		}}
969
970	+	/**
971	+	* If an "exceptionally action" throws an exception, it completes
972	+	* exceptionally with that exception
973	+	*/
974		public void testExceptionally_exceptionalCompletionActionFailed() {
975	+	for (ExecutionMode m : ExecutionMode.values())
976		for (boolean createIncomplete : new boolean[] { true, false })
977		{
978	<	final AtomicInteger a = new AtomicInteger(0);
978	>	final AtomicInteger ran = new AtomicInteger(0);
979		final CFException ex1 = new CFException();
980		final CFException ex2 = new CFException();
981		final CompletableFuture<Integer> f = new CompletableFuture<>();
982		if (!createIncomplete) f.completeExceptionally(ex1);
983	<	final CompletableFuture<Integer> g = f.exceptionally
984	<	((Throwable t) -> {
985	<	ExecutionMode.SYNC.checkExecutionMode();
986	<	threadAssertSame(t, ex1);
987	<	a.getAndIncrement();
983	>	final CompletableFuture<Integer> g = m.exceptionally
984	>	(f, (Throwable t) -> {
985	>	m.checkExecutionMode();
986	>	assertSame(t, ex1);
987	>	ran.getAndIncrement();
988		throw ex2;
989		});
990		if (createIncomplete) f.completeExceptionally(ex1);
991
992		checkCompletedWithWrappedException(g, ex2);
993	<	assertEquals(1, a.get());
993	>	checkCompletedExceptionally(f, ex1);
994	>	assertEquals(1, ran.get());
995		}}
996
997		/**
998		* whenComplete action executes on normal completion, propagating
999		* source result.
1000		*/
1001	<	public void testWhenComplete_normalCompletion1() {
1001	>	public void testWhenComplete_normalCompletion() {
1002		for (ExecutionMode m : ExecutionMode.values())
1003		for (boolean createIncomplete : new boolean[] { true, false })
1004		for (Integer v1 : new Integer[] { 1, null })
1005		{
1006	<	final AtomicInteger a = new AtomicInteger(0);
1006	>	final AtomicInteger ran = new AtomicInteger(0);
1007		final CompletableFuture<Integer> f = new CompletableFuture<>();
1008		if (!createIncomplete) assertTrue(f.complete(v1));
1009		final CompletableFuture<Integer> g = m.whenComplete
1010		(f,
1011	<	(Integer x, Throwable t) -> {
1011	>	(Integer result, Throwable t) -> {
1012		m.checkExecutionMode();
1013	<	threadAssertSame(x, v1);
1014	<	threadAssertNull(t);
1015	<	a.getAndIncrement();
1013	>	assertSame(result, v1);
1014	>	assertNull(t);
1015	>	ran.getAndIncrement();
1016		});
1017		if (createIncomplete) assertTrue(f.complete(v1));
1018
1019		checkCompletedNormally(g, v1);
1020		checkCompletedNormally(f, v1);
1021	<	assertEquals(1, a.get());
1021	>	assertEquals(1, ran.get());
1022		}}
1023
1024		/**
#	Line 1000 | Line 1029 | public class CompletableFutureTest exten
1029		for (ExecutionMode m : ExecutionMode.values())
1030		for (boolean createIncomplete : new boolean[] { true, false })
1031		{
1032	<	final AtomicInteger a = new AtomicInteger(0);
1032	>	final AtomicInteger ran = new AtomicInteger(0);
1033		final CFException ex = new CFException();
1034		final CompletableFuture<Integer> f = new CompletableFuture<>();
1035		if (!createIncomplete) f.completeExceptionally(ex);
1036		final CompletableFuture<Integer> g = m.whenComplete
1037		(f,
1038	<	(Integer x, Throwable t) -> {
1038	>	(Integer result, Throwable t) -> {
1039		m.checkExecutionMode();
1040	<	threadAssertNull(x);
1041	<	threadAssertSame(t, ex);
1042	<	a.getAndIncrement();
1040	>	assertNull(result);
1041	>	assertSame(t, ex);
1042	>	ran.getAndIncrement();
1043		});
1044		if (createIncomplete) f.completeExceptionally(ex);
1045
1046		checkCompletedWithWrappedException(g, ex);
1047		checkCompletedExceptionally(f, ex);
1048	<	assertEquals(1, a.get());
1048	>	assertEquals(1, ran.get());
1049		}}
1050
1051		/**
#	Line 1028 | Line 1057 | public class CompletableFutureTest exten
1057		for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1058		for (boolean createIncomplete : new boolean[] { true, false })
1059		{
1060	<	final AtomicInteger a = new AtomicInteger(0);
1060	>	final AtomicInteger ran = new AtomicInteger(0);
1061		final CompletableFuture<Integer> f = new CompletableFuture<>();
1062		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1063		final CompletableFuture<Integer> g = m.whenComplete
1064		(f,
1065	<	(Integer x, Throwable t) -> {
1065	>	(Integer result, Throwable t) -> {
1066		m.checkExecutionMode();
1067	<	threadAssertNull(x);
1068	<	threadAssertTrue(t instanceof CancellationException);
1069	<	a.getAndIncrement();
1067	>	assertNull(result);
1068	>	assertTrue(t instanceof CancellationException);
1069	>	ran.getAndIncrement();
1070		});
1071		if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1072
1073		checkCompletedWithWrappedCancellationException(g);
1074		checkCancelled(f);
1075	<	assertEquals(1, a.get());
1075	>	assertEquals(1, ran.get());
1076		}}
1077
1078		/**
1079		* If a whenComplete action throws an exception when triggered by
1080		* a normal completion, it completes exceptionally
1081		*/
1082	<	public void testWhenComplete_actionFailed() {
1082	>	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
1083		for (boolean createIncomplete : new boolean[] { true, false })
1084		for (ExecutionMode m : ExecutionMode.values())
1085		for (Integer v1 : new Integer[] { 1, null })
1086		{
1087	<	final AtomicInteger a = new AtomicInteger(0);
1087	>	final AtomicInteger ran = new AtomicInteger(0);
1088		final CFException ex = new CFException();
1089		final CompletableFuture<Integer> f = new CompletableFuture<>();
1090		if (!createIncomplete) assertTrue(f.complete(v1));
1091		final CompletableFuture<Integer> g = m.whenComplete
1092		(f,
1093	<	(Integer x, Throwable t) -> {
1093	>	(Integer result, Throwable t) -> {
1094		m.checkExecutionMode();
1095	<	threadAssertSame(x, v1);
1096	<	threadAssertNull(t);
1097	<	a.getAndIncrement();
1095	>	assertSame(result, v1);
1096	>	assertNull(t);
1097	>	ran.getAndIncrement();
1098		throw ex;
1099		});
1100		if (createIncomplete) assertTrue(f.complete(v1));
1101
1102		checkCompletedWithWrappedException(g, ex);
1103		checkCompletedNormally(f, v1);
1104	<	assertEquals(1, a.get());
1104	>	assertEquals(1, ran.get());
1105		}}
1106
1107		/**
1108		* If a whenComplete action throws an exception when triggered by
1109		* a source completion that also throws an exception, the source
1110	<	* exception takes precedence.
1110	>	* exception takes precedence (unlike handle)
1111		*/
1112	<	public void testWhenComplete_actionFailedSourceFailed() {
1112	>	public void testWhenComplete_sourceFailedActionFailed() {
1113		for (boolean createIncomplete : new boolean[] { true, false })
1114		for (ExecutionMode m : ExecutionMode.values())
1115		{
1116	<	final AtomicInteger a = new AtomicInteger(0);
1116	>	final AtomicInteger ran = new AtomicInteger(0);
1117		final CFException ex1 = new CFException();
1118		final CFException ex2 = new CFException();
1119		final CompletableFuture<Integer> f = new CompletableFuture<>();
#	Line 1092 | Line 1121 | public class CompletableFutureTest exten
1121		if (!createIncomplete) f.completeExceptionally(ex1);
1122		final CompletableFuture<Integer> g = m.whenComplete
1123		(f,
1124	<	(Integer x, Throwable t) -> {
1124	>	(Integer result, Throwable t) -> {
1125		m.checkExecutionMode();
1126	<	threadAssertSame(t, ex1);
1127	<	threadAssertNull(x);
1128	<	a.getAndIncrement();
1126	>	assertSame(t, ex1);
1127	>	assertNull(result);
1128	>	ran.getAndIncrement();
1129		throw ex2;
1130		});
1131		if (createIncomplete) f.completeExceptionally(ex1);
1132
1133		checkCompletedWithWrappedException(g, ex1);
1134		checkCompletedExceptionally(f, ex1);
1135	<	assertEquals(1, a.get());
1135	>	if (testImplementationDetails) {
1136	>	assertEquals(1, ex1.getSuppressed().length);
1137	>	assertSame(ex2, ex1.getSuppressed()[0]);
1138	>	}
1139	>	assertEquals(1, ran.get());
1140		}}
1141
1142		/**
#	Line 1116 | Line 1149 | public class CompletableFutureTest exten
1149		for (Integer v1 : new Integer[] { 1, null })
1150		{
1151		final CompletableFuture<Integer> f = new CompletableFuture<>();
1152	<	final AtomicInteger a = new AtomicInteger(0);
1152	>	final AtomicInteger ran = new AtomicInteger(0);
1153		if (!createIncomplete) assertTrue(f.complete(v1));
1154		final CompletableFuture<Integer> g = m.handle
1155		(f,
1156	<	(Integer x, Throwable t) -> {
1156	>	(Integer result, Throwable t) -> {
1157		m.checkExecutionMode();
1158	<	threadAssertSame(x, v1);
1159	<	threadAssertNull(t);
1160	<	a.getAndIncrement();
1158	>	assertSame(result, v1);
1159	>	assertNull(t);
1160	>	ran.getAndIncrement();
1161		return inc(v1);
1162		});
1163		if (createIncomplete) assertTrue(f.complete(v1));
1164
1165		checkCompletedNormally(g, inc(v1));
1166		checkCompletedNormally(f, v1);
1167	<	assertEquals(1, a.get());
1167	>	assertEquals(1, ran.get());
1168		}}
1169
1170		/**
#	Line 1144 | Line 1177 | public class CompletableFutureTest exten
1177		for (Integer v1 : new Integer[] { 1, null })
1178		{
1179		final CompletableFuture<Integer> f = new CompletableFuture<>();
1180	<	final AtomicInteger a = new AtomicInteger(0);
1180	>	final AtomicInteger ran = new AtomicInteger(0);
1181		final CFException ex = new CFException();
1182		if (!createIncomplete) f.completeExceptionally(ex);
1183		final CompletableFuture<Integer> g = m.handle
1184		(f,
1185	<	(Integer x, Throwable t) -> {
1185	>	(Integer result, Throwable t) -> {
1186		m.checkExecutionMode();
1187	<	threadAssertNull(x);
1188	<	threadAssertSame(t, ex);
1189	<	a.getAndIncrement();
1187	>	assertNull(result);
1188	>	assertSame(t, ex);
1189	>	ran.getAndIncrement();
1190		return v1;
1191		});
1192		if (createIncomplete) f.completeExceptionally(ex);
1193
1194		checkCompletedNormally(g, v1);
1195		checkCompletedExceptionally(f, ex);
1196	<	assertEquals(1, a.get());
1196	>	assertEquals(1, ran.get());
1197		}}
1198
1199		/**
#	Line 1174 | Line 1207 | public class CompletableFutureTest exten
1207		for (Integer v1 : new Integer[] { 1, null })
1208		{
1209		final CompletableFuture<Integer> f = new CompletableFuture<>();
1210	<	final AtomicInteger a = new AtomicInteger(0);
1210	>	final AtomicInteger ran = new AtomicInteger(0);
1211		if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1212		final CompletableFuture<Integer> g = m.handle
1213		(f,
1214	<	(Integer x, Throwable t) -> {
1214	>	(Integer result, Throwable t) -> {
1215		m.checkExecutionMode();
1216	<	threadAssertNull(x);
1217	<	threadAssertTrue(t instanceof CancellationException);
1218	<	a.getAndIncrement();
1216	>	assertNull(result);
1217	>	assertTrue(t instanceof CancellationException);
1218	>	ran.getAndIncrement();
1219		return v1;
1220		});
1221		if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1222
1223		checkCompletedNormally(g, v1);
1224		checkCancelled(f);
1225	<	assertEquals(1, a.get());
1225	>	assertEquals(1, ran.get());
1226		}}
1227
1228		/**
1229	<	* handle result completes exceptionally if action does
1229	>	* If a "handle action" throws an exception when triggered by
1230	>	* a normal completion, it completes exceptionally
1231		*/
1232	<	public void testHandle_sourceFailedActionFailed() {
1232	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1233		for (ExecutionMode m : ExecutionMode.values())
1234		for (boolean createIncomplete : new boolean[] { true, false })
1235	+	for (Integer v1 : new Integer[] { 1, null })
1236		{
1237		final CompletableFuture<Integer> f = new CompletableFuture<>();
1238	<	final AtomicInteger a = new AtomicInteger(0);
1239	<	final CFException ex1 = new CFException();
1240	<	final CFException ex2 = new CFException();
1206	<	if (!createIncomplete) f.completeExceptionally(ex1);
1238	>	final AtomicInteger ran = new AtomicInteger(0);
1239	>	final CFException ex = new CFException();
1240	>	if (!createIncomplete) assertTrue(f.complete(v1));
1241		final CompletableFuture<Integer> g = m.handle
1242		(f,
1243	<	(Integer x, Throwable t) -> {
1243	>	(Integer result, Throwable t) -> {
1244		m.checkExecutionMode();
1245	<	threadAssertNull(x);
1246	<	threadAssertSame(ex1, t);
1247	<	a.getAndIncrement();
1248	<	throw ex2;
1245	>	assertSame(result, v1);
1246	>	assertNull(t);
1247	>	ran.getAndIncrement();
1248	>	throw ex;
1249		});
1250	<	if (createIncomplete) f.completeExceptionally(ex1);
1250	>	if (createIncomplete) assertTrue(f.complete(v1));
1251
1252	<	checkCompletedWithWrappedException(g, ex2);
1253	<	checkCompletedExceptionally(f, ex1);
1254	<	assertEquals(1, a.get());
1252	>	checkCompletedWithWrappedException(g, ex);
1253	>	checkCompletedNormally(f, v1);
1254	>	assertEquals(1, ran.get());
1255		}}
1256
1257	<	public void testHandle_sourceCompletedNormallyActionFailed() {
1258	<	for (ExecutionMode m : ExecutionMode.values())
1257	>	/**
1258	>	* If a "handle action" throws an exception when triggered by
1259	>	* a source completion that also throws an exception, the action
1260	>	* exception takes precedence (unlike whenComplete)
1261	>	*/
1262	>	public void testHandle_sourceFailedActionFailed() {
1263		for (boolean createIncomplete : new boolean[] { true, false })
1264	<	for (Integer v1 : new Integer[] { 1, null })
1264	>	for (ExecutionMode m : ExecutionMode.values())
1265		{
1266	+	final AtomicInteger ran = new AtomicInteger(0);
1267	+	final CFException ex1 = new CFException();
1268	+	final CFException ex2 = new CFException();
1269		final CompletableFuture<Integer> f = new CompletableFuture<>();
1270	<	final AtomicInteger a = new AtomicInteger(0);
1271	<	final CFException ex = new CFException();
1231	<	if (!createIncomplete) assertTrue(f.complete(v1));
1270	>
1271	>	if (!createIncomplete) f.completeExceptionally(ex1);
1272		final CompletableFuture<Integer> g = m.handle
1273		(f,
1274	<	(Integer x, Throwable t) -> {
1274	>	(Integer result, Throwable t) -> {
1275		m.checkExecutionMode();
1276	<	threadAssertSame(x, v1);
1277	<	threadAssertNull(t);
1278	<	a.getAndIncrement();
1279	<	throw ex;
1276	>	assertNull(result);
1277	>	assertSame(ex1, t);
1278	>	ran.getAndIncrement();
1279	>	throw ex2;
1280		});
1281	<	if (createIncomplete) assertTrue(f.complete(v1));
1281	>	if (createIncomplete) f.completeExceptionally(ex1);
1282
1283	<	checkCompletedWithWrappedException(g, ex);
1284	<	checkCompletedNormally(f, v1);
1285	<	assertEquals(1, a.get());
1283	>	checkCompletedWithWrappedException(g, ex2);
1284	>	checkCompletedExceptionally(f, ex1);
1285	>	assertEquals(1, ran.get());
1286		}}
1287
1288		/**
#	Line 1274 | Line 1314 | public class CompletableFutureTest exten
1314		{
1315		final FailingRunnable r = new FailingRunnable(m);
1316		final CompletableFuture<Void> f = m.runAsync(r);
1317	<	checkCompletedWithWrappedCFException(f);
1317	>	checkCompletedWithWrappedException(f, r.ex);
1318		r.assertInvoked();
1319		}}
1320
1321	+	@SuppressWarnings("FutureReturnValueIgnored")
1322	+	public void testRunAsync_rejectingExecutor() {
1323	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1324	+	try {
1325	+	CompletableFuture.runAsync(() -> {}, e);
1326	+	shouldThrow();
1327	+	} catch (Throwable t) {
1328	+	assertSame(e.ex, t);
1329	+	}
1330	+
1331	+	assertEquals(1, e.count.get());
1332	+	}
1333	+
1334		/**
1335		* supplyAsync completes with result of supplier
1336		*/
#	Line 1308 | Line 1361 | public class CompletableFutureTest exten
1361		{
1362		FailingSupplier r = new FailingSupplier(m);
1363		CompletableFuture<Integer> f = m.supplyAsync(r);
1364	<	checkCompletedWithWrappedCFException(f);
1364	>	checkCompletedWithWrappedException(f, r.ex);
1365		r.assertInvoked();
1366		}}
1367
1368	+	@SuppressWarnings("FutureReturnValueIgnored")
1369	+	public void testSupplyAsync_rejectingExecutor() {
1370	+	CountingRejectingExecutor e = new CountingRejectingExecutor();
1371	+	try {
1372	+	CompletableFuture.supplyAsync(() -> null, e);
1373	+	shouldThrow();
1374	+	} catch (Throwable t) {
1375	+	assertSame(e.ex, t);
1376	+	}
1377	+
1378	+	assertEquals(1, e.count.get());
1379	+	}
1380	+
1381		// seq completion methods
1382
1383		/**
#	Line 1430 | Line 1496 | public class CompletableFutureTest exten
1496		final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1497		final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1498
1499	<	checkCompletedWithWrappedCFException(h0);
1500	<	checkCompletedWithWrappedCFException(h1);
1501	<	checkCompletedWithWrappedCFException(h2);
1502	<	checkCompletedWithWrappedCFException(h3);
1503	<	checkCompletedWithWrappedCFException(h4);
1504	<	checkCompletedWithWrappedCFException(h5);
1499	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1500	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1501	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1502	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1503	>	checkCompletedWithWrappedException(h4, rs[4].ex);
1504	>	checkCompletedWithWrappedException(h5, rs[5].ex);
1505		checkCompletedNormally(f, v1);
1506		}}
1507
#	Line 1534 | Line 1600 | public class CompletableFutureTest exten
1600		final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1601		final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1602
1603	<	checkCompletedWithWrappedCFException(h0);
1604	<	checkCompletedWithWrappedCFException(h1);
1605	<	checkCompletedWithWrappedCFException(h2);
1606	<	checkCompletedWithWrappedCFException(h3);
1603	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1604	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1605	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1606	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1607		checkCompletedNormally(f, v1);
1608		}}
1609
#	Line 1636 | Line 1702 | public class CompletableFutureTest exten
1702		final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1703		final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1704
1705	<	checkCompletedWithWrappedCFException(h0);
1706	<	checkCompletedWithWrappedCFException(h1);
1707	<	checkCompletedWithWrappedCFException(h2);
1708	<	checkCompletedWithWrappedCFException(h3);
1705	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1706	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1707	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1708	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1709		checkCompletedNormally(f, v1);
1710		}}
1711
#	Line 1801 | Line 1867 | public class CompletableFutureTest exten
1867		assertTrue(snd.complete(w2));
1868		final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1869
1870	<	checkCompletedWithWrappedCFException(h1);
1871	<	checkCompletedWithWrappedCFException(h2);
1872	<	checkCompletedWithWrappedCFException(h3);
1870	>	checkCompletedWithWrappedException(h1, r1.ex);
1871	>	checkCompletedWithWrappedException(h2, r2.ex);
1872	>	checkCompletedWithWrappedException(h3, r3.ex);
1873		r1.assertInvoked();
1874		r2.assertInvoked();
1875		r3.assertInvoked();
#	Line 1965 | Line 2031 | public class CompletableFutureTest exten
2031		assertTrue(snd.complete(w2));
2032		final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
2033
2034	<	checkCompletedWithWrappedCFException(h1);
2035	<	checkCompletedWithWrappedCFException(h2);
2036	<	checkCompletedWithWrappedCFException(h3);
2034	>	checkCompletedWithWrappedException(h1, r1.ex);
2035	>	checkCompletedWithWrappedException(h2, r2.ex);
2036	>	checkCompletedWithWrappedException(h3, r3.ex);
2037		r1.assertInvoked();
2038		r2.assertInvoked();
2039		r3.assertInvoked();
#	Line 2129 | Line 2195 | public class CompletableFutureTest exten
2195		assertTrue(snd.complete(w2));
2196		final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2197
2198	<	checkCompletedWithWrappedCFException(h1);
2199	<	checkCompletedWithWrappedCFException(h2);
2200	<	checkCompletedWithWrappedCFException(h3);
2198	>	checkCompletedWithWrappedException(h1, r1.ex);
2199	>	checkCompletedWithWrappedException(h2, r2.ex);
2200	>	checkCompletedWithWrappedException(h3, r3.ex);
2201		r1.assertInvoked();
2202		r2.assertInvoked();
2203		r3.assertInvoked();
#	Line 2421 | Line 2487 | public class CompletableFutureTest exten
2487		f.complete(v1);
2488		final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2489		final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2490	<	checkCompletedWithWrappedCFException(h0);
2491	<	checkCompletedWithWrappedCFException(h1);
2492	<	checkCompletedWithWrappedCFException(h2);
2493	<	checkCompletedWithWrappedCFException(h3);
2490	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2491	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2492	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2493	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2494		for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2495
2496		g.complete(v2);
#	Line 2433 | Line 2499 | public class CompletableFutureTest exten
2499		final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2500		final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2501
2502	<	checkCompletedWithWrappedCFException(h4);
2502	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2503		assertTrue(Objects.equals(v1, rs[4].value) ||
2504		Objects.equals(v2, rs[4].value));
2505	<	checkCompletedWithWrappedCFException(h5);
2505	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2506		assertTrue(Objects.equals(v1, rs[5].value) ||
2507		Objects.equals(v2, rs[5].value));
2508
#	Line 2574 | Line 2640 | public class CompletableFutureTest exten
2640
2641		// unspecified behavior - both source completions available
2642		try {
2643	<	assertEquals(null, h0.join());
2643	>	assertNull(h0.join());
2644		rs[0].assertValue(v1);
2645		} catch (CompletionException ok) {
2646		checkCompletedWithWrappedException(h0, ex);
2647		rs[0].assertNotInvoked();
2648		}
2649		try {
2650	<	assertEquals(null, h1.join());
2650	>	assertNull(h1.join());
2651		rs[1].assertValue(v1);
2652		} catch (CompletionException ok) {
2653		checkCompletedWithWrappedException(h1, ex);
2654		rs[1].assertNotInvoked();
2655		}
2656		try {
2657	<	assertEquals(null, h2.join());
2657	>	assertNull(h2.join());
2658		rs[2].assertValue(v1);
2659		} catch (CompletionException ok) {
2660		checkCompletedWithWrappedException(h2, ex);
2661		rs[2].assertNotInvoked();
2662		}
2663		try {
2664	<	assertEquals(null, h3.join());
2664	>	assertNull(h3.join());
2665		rs[3].assertValue(v1);
2666		} catch (CompletionException ok) {
2667		checkCompletedWithWrappedException(h3, ex);
#	Line 2680 | Line 2746 | public class CompletableFutureTest exten
2746		f.complete(v1);
2747		final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2748		final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2749	<	checkCompletedWithWrappedCFException(h0);
2750	<	checkCompletedWithWrappedCFException(h1);
2751	<	checkCompletedWithWrappedCFException(h2);
2752	<	checkCompletedWithWrappedCFException(h3);
2749	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2750	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2751	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2752	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2753		for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2754
2755		g.complete(v2);
#	Line 2692 | Line 2758 | public class CompletableFutureTest exten
2758		final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2759		final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2760
2761	<	checkCompletedWithWrappedCFException(h4);
2761	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2762		assertTrue(Objects.equals(v1, rs[4].value) ||
2763		Objects.equals(v2, rs[4].value));
2764	<	checkCompletedWithWrappedCFException(h5);
2764	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2765		assertTrue(Objects.equals(v1, rs[5].value) ||
2766		Objects.equals(v2, rs[5].value));
2767
#	Line 2711 | Line 2777 | public class CompletableFutureTest exten
2777		for (ExecutionMode m : ExecutionMode.values())
2778		for (Integer v1 : new Integer[] { 1, null })
2779		for (Integer v2 : new Integer[] { 2, null })
2780	+	for (boolean pushNop : new boolean[] { true, false })
2781		{
2782		final CompletableFuture<Integer> f = new CompletableFuture<>();
2783		final CompletableFuture<Integer> g = new CompletableFuture<>();
#	Line 2723 | Line 2790 | public class CompletableFutureTest exten
2790		checkIncomplete(h1);
2791		rs[0].assertNotInvoked();
2792		rs[1].assertNotInvoked();
2793	+	if (pushNop) {          // ad hoc test of intra-completion interference
2794	+	m.thenRun(f, () -> {});
2795	+	m.thenRun(g, () -> {});
2796	+	}
2797		f.complete(v1);
2798		checkCompletedNormally(h0, null);
2799		checkCompletedNormally(h1, null);
#	Line 2829 | Line 2900 | public class CompletableFutureTest exten
2900
2901		// unspecified behavior - both source completions available
2902		try {
2903	<	assertEquals(null, h0.join());
2903	>	assertNull(h0.join());
2904		rs[0].assertInvoked();
2905		} catch (CompletionException ok) {
2906		checkCompletedWithWrappedException(h0, ex);
2907		rs[0].assertNotInvoked();
2908		}
2909		try {
2910	<	assertEquals(null, h1.join());
2910	>	assertNull(h1.join());
2911		rs[1].assertInvoked();
2912		} catch (CompletionException ok) {
2913		checkCompletedWithWrappedException(h1, ex);
2914		rs[1].assertNotInvoked();
2915		}
2916		try {
2917	<	assertEquals(null, h2.join());
2917	>	assertNull(h2.join());
2918		rs[2].assertInvoked();
2919		} catch (CompletionException ok) {
2920		checkCompletedWithWrappedException(h2, ex);
2921		rs[2].assertNotInvoked();
2922		}
2923		try {
2924	<	assertEquals(null, h3.join());
2924	>	assertNull(h3.join());
2925		rs[3].assertInvoked();
2926		} catch (CompletionException ok) {
2927		checkCompletedWithWrappedException(h3, ex);
#	Line 2935 | Line 3006 | public class CompletableFutureTest exten
3006		assertTrue(f.complete(v1));
3007		final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
3008		final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
3009	<	checkCompletedWithWrappedCFException(h0);
3010	<	checkCompletedWithWrappedCFException(h1);
3011	<	checkCompletedWithWrappedCFException(h2);
3012	<	checkCompletedWithWrappedCFException(h3);
3009	>	checkCompletedWithWrappedException(h0, rs[0].ex);
3010	>	checkCompletedWithWrappedException(h1, rs[1].ex);
3011	>	checkCompletedWithWrappedException(h2, rs[2].ex);
3012	>	checkCompletedWithWrappedException(h3, rs[3].ex);
3013		for (int i = 0; i < 4; i++) rs[i].assertInvoked();
3014		assertTrue(g.complete(v2));
3015		final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
3016		final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
3017	<	checkCompletedWithWrappedCFException(h4);
3018	<	checkCompletedWithWrappedCFException(h5);
3017	>	checkCompletedWithWrappedException(h4, rs[4].ex);
3018	>	checkCompletedWithWrappedException(h5, rs[5].ex);
3019
3020		checkCompletedNormally(f, v1);
3021		checkCompletedNormally(g, v2);
#	Line 3005 | Line 3076 | public class CompletableFutureTest exten
3076		final CompletableFuture<Integer> g = m.thenCompose(f, r);
3077		if (createIncomplete) assertTrue(f.complete(v1));
3078
3079	<	checkCompletedWithWrappedCFException(g);
3079	>	checkCompletedWithWrappedException(g, r.ex);
3080		checkCompletedNormally(f, v1);
3081		}}
3082
#	Line 3047 | Line 3118 | public class CompletableFutureTest exten
3118		case 0:
3119		assertTrue(f.complete(v1));
3120		assertTrue(g.completeExceptionally(ex));
3121	<	h = m.thenCompose(f, (x -> g));
3121	>	h = m.thenCompose(f, x -> g);
3122		break;
3123		case 1:
3124		assertTrue(f.complete(v1));
3125	<	h = m.thenCompose(f, (x -> g));
3125	>	h = m.thenCompose(f, x -> g);
3126		assertTrue(g.completeExceptionally(ex));
3127		break;
3128		case 2:
3129		assertTrue(g.completeExceptionally(ex));
3130		assertTrue(f.complete(v1));
3131	<	h = m.thenCompose(f, (x -> g));
3131	>	h = m.thenCompose(f, x -> g);
3132		break;
3133		case 3:
3134		assertTrue(g.completeExceptionally(ex));
3135	<	h = m.thenCompose(f, (x -> g));
3135	>	h = m.thenCompose(f, x -> g);
3136		assertTrue(f.complete(v1));
3137		break;
3138		case 4:
3139	<	h = m.thenCompose(f, (x -> g));
3139	>	h = m.thenCompose(f, x -> g);
3140		assertTrue(f.complete(v1));
3141		assertTrue(g.completeExceptionally(ex));
3142		break;
3143		case 5:
3144	<	h = m.thenCompose(f, (x -> g));
3144	>	h = m.thenCompose(f, x -> g);
3145		assertTrue(f.complete(v1));
3146		assertTrue(g.completeExceptionally(ex));
3147		break;
#	Line 3082 | Line 3153 | public class CompletableFutureTest exten
3153		checkCompletedNormally(f, v1);
3154		}}
3155
3156	+	/**
3157	+	* exceptionallyCompose result completes normally after normal
3158	+	* completion of source
3159	+	*/
3160	+	public void testExceptionallyCompose_normalCompletion() {
3161	+	for (ExecutionMode m : ExecutionMode.values())
3162	+	for (boolean createIncomplete : new boolean[] { true, false })
3163	+	for (Integer v1 : new Integer[] { 1, null })
3164	+	{
3165	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3166	+	final ExceptionalCompletableFutureFunction r =
3167	+	new ExceptionalCompletableFutureFunction(m);
3168	+	if (!createIncomplete) assertTrue(f.complete(v1));
3169	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3170	+	if (createIncomplete) assertTrue(f.complete(v1));
3171	+
3172	+	checkCompletedNormally(f, v1);
3173	+	checkCompletedNormally(g, v1);
3174	+	r.assertNotInvoked();
3175	+	}}
3176	+
3177	+	/**
3178	+	* exceptionallyCompose result completes normally after exceptional
3179	+	* completion of source
3180	+	*/
3181	+	public void testExceptionallyCompose_exceptionalCompletion() {
3182	+	for (ExecutionMode m : ExecutionMode.values())
3183	+	for (boolean createIncomplete : new boolean[] { true, false })
3184	+	{
3185	+	final CFException ex = new CFException();
3186	+	final ExceptionalCompletableFutureFunction r =
3187	+	new ExceptionalCompletableFutureFunction(m);
3188	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3189	+	if (!createIncomplete) f.completeExceptionally(ex);
3190	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3191	+	if (createIncomplete) f.completeExceptionally(ex);
3192	+
3193	+	checkCompletedExceptionally(f, ex);
3194	+	checkCompletedNormally(g, r.value);
3195	+	r.assertInvoked();
3196	+	}}
3197	+
3198	+	/**
3199	+	* exceptionallyCompose completes exceptionally on exception if action does
3200	+	*/
3201	+	public void testExceptionallyCompose_actionFailed() {
3202	+	for (ExecutionMode m : ExecutionMode.values())
3203	+	for (boolean createIncomplete : new boolean[] { true, false })
3204	+	{
3205	+	final CFException ex = new CFException();
3206	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3207	+	final FailingExceptionalCompletableFutureFunction r
3208	+	= new FailingExceptionalCompletableFutureFunction(m);
3209	+	if (!createIncomplete) f.completeExceptionally(ex);
3210	+	final CompletableFuture<Integer> g = m.exceptionallyCompose(f, r);
3211	+	if (createIncomplete) f.completeExceptionally(ex);
3212	+
3213	+	checkCompletedExceptionally(f, ex);
3214	+	checkCompletedWithWrappedException(g, r.ex);
3215	+	r.assertInvoked();
3216	+	}}
3217	+
3218	+	/**
3219	+	* exceptionallyCompose result completes exceptionally if the
3220	+	* result of the action does
3221	+	*/
3222	+	public void testExceptionallyCompose_actionReturnsFailingFuture() {
3223	+	for (ExecutionMode m : ExecutionMode.values())
3224	+	for (int order = 0; order < 6; order++)
3225	+	{
3226	+	final CFException ex0 = new CFException();
3227	+	final CFException ex = new CFException();
3228	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
3229	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
3230	+	final CompletableFuture<Integer> h;
3231	+	// Test all permutations of orders
3232	+	switch (order) {
3233	+	case 0:
3234	+	assertTrue(f.completeExceptionally(ex0));
3235	+	assertTrue(g.completeExceptionally(ex));
3236	+	h = m.exceptionallyCompose(f, x -> g);
3237	+	break;
3238	+	case 1:
3239	+	assertTrue(f.completeExceptionally(ex0));
3240	+	h = m.exceptionallyCompose(f, x -> g);
3241	+	assertTrue(g.completeExceptionally(ex));
3242	+	break;
3243	+	case 2:
3244	+	assertTrue(g.completeExceptionally(ex));
3245	+	assertTrue(f.completeExceptionally(ex0));
3246	+	h = m.exceptionallyCompose(f, x -> g);
3247	+	break;
3248	+	case 3:
3249	+	assertTrue(g.completeExceptionally(ex));
3250	+	h = m.exceptionallyCompose(f, x -> g);
3251	+	assertTrue(f.completeExceptionally(ex0));
3252	+	break;
3253	+	case 4:
3254	+	h = m.exceptionallyCompose(f, x -> g);
3255	+	assertTrue(f.completeExceptionally(ex0));
3256	+	assertTrue(g.completeExceptionally(ex));
3257	+	break;
3258	+	case 5:
3259	+	h = m.exceptionallyCompose(f, x -> g);
3260	+	assertTrue(f.completeExceptionally(ex0));
3261	+	assertTrue(g.completeExceptionally(ex));
3262	+	break;
3263	+	default: throw new AssertionError();
3264	+	}
3265	+
3266	+	checkCompletedExceptionally(g, ex);
3267	+	checkCompletedWithWrappedException(h, ex);
3268	+	checkCompletedExceptionally(f, ex0);
3269	+	}}
3270	+
3271		// other static methods
3272
3273		/**
#	Line 3114 | Line 3300 | public class CompletableFutureTest exten
3300		}
3301		}
3302
3303	<	public void testAllOf_backwards() throws Exception {
3303	>	public void testAllOf_normal_backwards() throws Exception {
3304		for (int k = 1; k < 10; k++) {
3305		CompletableFuture<Integer>[] fs
3306		= (CompletableFuture<Integer>[]) new CompletableFuture[k];
#	Line 3142 | Line 3328 | public class CompletableFutureTest exten
3328		for (int i = 0; i < k; i++) {
3329		checkIncomplete(f);
3330		checkIncomplete(CompletableFuture.allOf(fs));
3331	<	if (i != k/2) {
3331	>	if (i != k / 2) {
3332		fs[i].complete(i);
3333		checkCompletedNormally(fs[i], i);
3334		} else {
#	Line 3245 | Line 3431 | public class CompletableFutureTest exten
3431		/**
3432		* Completion methods throw NullPointerException with null arguments
3433		*/
3434	+	@SuppressWarnings("FutureReturnValueIgnored")
3435		public void testNPE() {
3436		CompletableFuture<Integer> f = new CompletableFuture<>();
3437		CompletableFuture<Integer> g = new CompletableFuture<>();
3438		CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
3439		ThreadExecutor exec = new ThreadExecutor();
3440
3441	<	Runnable[] throwingActions = {
3441	>	assertThrows(
3442	>	NullPointerException.class,
3443	>
3444		() -> CompletableFuture.supplyAsync(null),
3445		() -> CompletableFuture.supplyAsync(null, exec),
3446		() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
#	Line 3264 | Line 3453 | public class CompletableFutureTest exten
3453
3454		() -> f.thenApply(null),
3455		() -> f.thenApplyAsync(null),
3456	<	() -> f.thenApplyAsync((x) -> x, null),
3456	>	() -> f.thenApplyAsync(x -> x, null),
3457		() -> f.thenApplyAsync(null, exec),
3458
3459		() -> f.thenAccept(null),
3460		() -> f.thenAcceptAsync(null),
3461	<	() -> f.thenAcceptAsync((x) -> {} , null),
3461	>	() -> f.thenAcceptAsync(x -> {} , null),
3462		() -> f.thenAcceptAsync(null, exec),
3463
3464		() -> f.thenRun(null),
#	Line 3304 | Line 3493 | public class CompletableFutureTest exten
3493		() -> f.applyToEither(g, null),
3494		() -> f.applyToEitherAsync(g, null),
3495		() -> f.applyToEitherAsync(g, null, exec),
3496	<	() -> f.applyToEither(nullFuture, (x) -> x),
3497	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x),
3498	<	() -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
3499	<	() -> f.applyToEitherAsync(g, (x) -> x, null),
3496	>	() -> f.applyToEither(nullFuture, x -> x),
3497	>	() -> f.applyToEitherAsync(nullFuture, x -> x),
3498	>	() -> f.applyToEitherAsync(nullFuture, x -> x, exec),
3499	>	() -> f.applyToEitherAsync(g, x -> x, null),
3500
3501		() -> f.acceptEither(g, null),
3502		() -> f.acceptEitherAsync(g, null),
3503		() -> f.acceptEitherAsync(g, null, exec),
3504	<	() -> f.acceptEither(nullFuture, (x) -> {}),
3505	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}),
3506	<	() -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
3507	<	() -> f.acceptEitherAsync(g, (x) -> {}, null),
3504	>	() -> f.acceptEither(nullFuture, x -> {}),
3505	>	() -> f.acceptEitherAsync(nullFuture, x -> {}),
3506	>	() -> f.acceptEitherAsync(nullFuture, x -> {}, exec),
3507	>	() -> f.acceptEitherAsync(g, x -> {}, null),
3508
3509		() -> f.runAfterEither(g, null),
3510		() -> f.runAfterEitherAsync(g, null),
#	Line 3345 | Line 3534 | public class CompletableFutureTest exten
3534		() -> CompletableFuture.anyOf(null, f),
3535
3536		() -> f.obtrudeException(null),
3348	–	};
3537
3538	<	assertThrows(NullPointerException.class, throwingActions);
3538	>	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3539	>	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3540	>	() -> CompletableFuture.delayedExecutor(1L, null),
3541	>
3542	>	() -> f.orTimeout(1L, null),
3543	>	() -> f.completeOnTimeout(42, 1L, null),
3544	>
3545	>	() -> CompletableFuture.failedFuture(null),
3546	>	() -> CompletableFuture.failedStage(null));
3547	>
3548		assertEquals(0, exec.count.get());
3549		}
3550
3551		/**
3552	+	* Test submissions to an executor that rejects all tasks.
3553	+	*/
3554	+	public void testRejectingExecutor() {
3555	+	for (Integer v : new Integer[] { 1, null })
3556	+	{
3557	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3558	+
3559	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3560	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3561	+
3562	+	List<CompletableFuture<?>> futures = new ArrayList<>();
3563	+
3564	+	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3565	+	srcs.add(complete);
3566	+	srcs.add(incomplete);
3567	+
3568	+	for (CompletableFuture<Integer> src : srcs) {
3569	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3570	+	fs.add(src.thenRunAsync(() -> {}, e));
3571	+	fs.add(src.thenAcceptAsync(z -> {}, e));
3572	+	fs.add(src.thenApplyAsync(z -> z, e));
3573	+
3574	+	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3575	+	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3576	+	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3577	+
3578	+	fs.add(src.applyToEitherAsync(src, z -> z, e));
3579	+	fs.add(src.acceptEitherAsync(src, z -> {}, e));
3580	+	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3581	+
3582	+	fs.add(src.thenComposeAsync(z -> null, e));
3583	+	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3584	+	fs.add(src.handleAsync((z, t) -> null, e));
3585	+
3586	+	for (CompletableFuture<?> future : fs) {
3587	+	if (src.isDone())
3588	+	checkCompletedWithWrappedException(future, e.ex);
3589	+	else
3590	+	checkIncomplete(future);
3591	+	}
3592	+	futures.addAll(fs);
3593	+	}
3594	+
3595	+	{
3596	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3597	+
3598	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3599	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3600	+
3601	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3602	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3603	+
3604	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3605	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3606	+
3607	+	for (CompletableFuture<?> future : fs)
3608	+	checkIncomplete(future);
3609	+	futures.addAll(fs);
3610	+	}
3611	+
3612	+	{
3613	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3614	+
3615	+	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3616	+	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3617	+
3618	+	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3619	+	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3620	+
3621	+	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3622	+	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3623	+
3624	+	for (CompletableFuture<?> future : fs)
3625	+	checkCompletedWithWrappedException(future, e.ex);
3626	+	futures.addAll(fs);
3627	+	}
3628	+
3629	+	incomplete.complete(v);
3630	+
3631	+	for (CompletableFuture<?> future : futures)
3632	+	checkCompletedWithWrappedException(future, e.ex);
3633	+
3634	+	assertEquals(futures.size(), e.count.get());
3635	+	}}
3636	+
3637	+	/**
3638	+	* Test submissions to an executor that rejects all tasks, but
3639	+	* should never be invoked because the dependent future is
3640	+	* explicitly completed.
3641	+	*/
3642	+	public void testRejectingExecutorNeverInvoked() {
3643	+	for (Integer v : new Integer[] { 1, null })
3644	+	{
3645	+	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3646	+
3647	+	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3648	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3649	+
3650	+	List<CompletableFuture<?>> fs = new ArrayList<>();
3651	+	fs.add(incomplete.thenRunAsync(() -> {}, e));
3652	+	fs.add(incomplete.thenAcceptAsync(z -> {}, e));
3653	+	fs.add(incomplete.thenApplyAsync(z -> z, e));
3654	+
3655	+	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3656	+	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3657	+	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3658	+
3659	+	fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e));
3660	+	fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e));
3661	+	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3662	+
3663	+	fs.add(incomplete.thenComposeAsync(z -> null, e));
3664	+	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3665	+	fs.add(incomplete.handleAsync((z, t) -> null, e));
3666	+
3667	+	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3668	+	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3669	+
3670	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3671	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3672	+
3673	+	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3674	+	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3675	+
3676	+	for (CompletableFuture<?> future : fs)
3677	+	checkIncomplete(future);
3678	+
3679	+	for (CompletableFuture<?> future : fs)
3680	+	future.complete(null);
3681	+
3682	+	incomplete.complete(v);
3683	+
3684	+	for (CompletableFuture<?> future : fs)
3685	+	checkCompletedNormally(future, null);
3686	+
3687	+	assertEquals(0, e.count.get());
3688	+	}}
3689	+
3690	+	/**
3691		* toCompletableFuture returns this CompletableFuture.
3692		*/
3693		public void testToCompletableFuture() {
#	Line 3365 | Line 3701 | public class CompletableFutureTest exten
3701		* newIncompleteFuture returns an incomplete CompletableFuture
3702		*/
3703		public void testNewIncompleteFuture() {
3704	+	for (Integer v1 : new Integer[] { 1, null })
3705	+	{
3706		CompletableFuture<Integer> f = new CompletableFuture<>();
3707		CompletableFuture<Integer> g = f.newIncompleteFuture();
3708		checkIncomplete(f);
3709		checkIncomplete(g);
3710	<	}
3710	>	f.complete(v1);
3711	>	checkCompletedNormally(f, v1);
3712	>	checkIncomplete(g);
3713	>	g.complete(v1);
3714	>	checkCompletedNormally(g, v1);
3715	>	assertSame(g.getClass(), CompletableFuture.class);
3716	>	}}
3717
3718		/**
3719		* completedStage returns a completed CompletionStage
3720		*/
3721		public void testCompletedStage() {
3722	<	AtomicInteger x = new AtomicInteger();
3723	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3722	>	AtomicInteger x = new AtomicInteger(0);
3723	>	AtomicReference<Throwable> r = new AtomicReference<>();
3724		CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3725		f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3726		assertEquals(x.get(), 1);
#	Line 3385 | Line 3729 | public class CompletableFutureTest exten
3729
3730		/**
3731		* defaultExecutor by default returns the commonPool if
3732	<	* it supports at least one thread.
3732	>	* it supports more than one thread.
3733		*/
3734		public void testDefaultExecutor() {
3735		CompletableFuture<Integer> f = new CompletableFuture<>();
#	Line 3393 | Line 3737 | public class CompletableFutureTest exten
3737		Executor c = ForkJoinPool.commonPool();
3738		if (ForkJoinPool.getCommonPoolParallelism() > 1)
3739		assertSame(e, c);
3740	+	else
3741	+	assertNotSame(e, c);
3742		}
3743
3744		/**
#	Line 3402 | Line 3748 | public class CompletableFutureTest exten
3748		public void testFailedFuture() {
3749		CFException ex = new CFException();
3750		CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3751	<	checkCompletedExceptionallyWithRootCause(f, ex);
3751	>	checkCompletedExceptionally(f, ex);
3752		}
3753
3754		/**
3755		* failedFuture(null) throws NPE
3756		*/
3757	<	public void testFailedFuture2() {
3757	>	public void testFailedFuture_null() {
3758		try {
3759		CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3760		shouldThrow();
#	Line 3419 | Line 3765 | public class CompletableFutureTest exten
3765		* copy returns a CompletableFuture that is completed normally,
3766		* with the same value, when source is.
3767		*/
3768	<	public void testCopy() {
3768	>	public void testCopy_normalCompletion() {
3769	>	for (boolean createIncomplete : new boolean[] { true, false })
3770	>	for (Integer v1 : new Integer[] { 1, null })
3771	>	{
3772		CompletableFuture<Integer> f = new CompletableFuture<>();
3773	+	if (!createIncomplete) assertTrue(f.complete(v1));
3774		CompletableFuture<Integer> g = f.copy();
3775	<	checkIncomplete(f);
3776	<	checkIncomplete(g);
3777	<	f.complete(1);
3778	<	checkCompletedNormally(f, 1);
3779	<	checkCompletedNormally(g, 1);
3780	<	}
3775	>	if (createIncomplete) {
3776	>	checkIncomplete(f);
3777	>	checkIncomplete(g);
3778	>	assertTrue(f.complete(v1));
3779	>	}
3780	>	checkCompletedNormally(f, v1);
3781	>	checkCompletedNormally(g, v1);
3782	>	}}
3783
3784		/**
3785		* copy returns a CompletableFuture that is completed exceptionally
3786		* when source is.
3787		*/
3788	<	public void testCopy2() {
3788	>	public void testCopy_exceptionalCompletion() {
3789	>	for (boolean createIncomplete : new boolean[] { true, false })
3790	>	{
3791	>	CFException ex = new CFException();
3792		CompletableFuture<Integer> f = new CompletableFuture<>();
3793	+	if (!createIncomplete) f.completeExceptionally(ex);
3794		CompletableFuture<Integer> g = f.copy();
3795	<	checkIncomplete(f);
3796	<	checkIncomplete(g);
3797	<	CFException ex = new CFException();
3798	<	f.completeExceptionally(ex);
3795	>	if (createIncomplete) {
3796	>	checkIncomplete(f);
3797	>	checkIncomplete(g);
3798	>	f.completeExceptionally(ex);
3799	>	}
3800		checkCompletedExceptionally(f, ex);
3801	<	checkCompletedWithWrappedCFException(g);
3801	>	checkCompletedWithWrappedException(g, ex);
3802	>	}}
3803	>
3804	>	/**
3805	>	* Completion of a copy does not complete its source.
3806	>	*/
3807	>	public void testCopy_oneWayPropagation() {
3808	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3809	>	assertTrue(f.copy().complete(1));
3810	>	assertTrue(f.copy().complete(null));
3811	>	assertTrue(f.copy().cancel(true));
3812	>	assertTrue(f.copy().cancel(false));
3813	>	assertTrue(f.copy().completeExceptionally(new CFException()));
3814	>	checkIncomplete(f);
3815		}
3816
3817		/**
#	Line 3451 | Line 3821 | public class CompletableFutureTest exten
3821		public void testMinimalCompletionStage() {
3822		CompletableFuture<Integer> f = new CompletableFuture<>();
3823		CompletionStage<Integer> g = f.minimalCompletionStage();
3824	<	AtomicInteger x = new AtomicInteger();
3825	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3824	>	AtomicInteger x = new AtomicInteger(0);
3825	>	AtomicReference<Throwable> r = new AtomicReference<>();
3826		checkIncomplete(f);
3827		g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3828		f.complete(1);
#	Line 3468 | Line 3838 | public class CompletableFutureTest exten
3838		public void testMinimalCompletionStage2() {
3839		CompletableFuture<Integer> f = new CompletableFuture<>();
3840		CompletionStage<Integer> g = f.minimalCompletionStage();
3841	<	AtomicInteger x = new AtomicInteger();
3842	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3841	>	AtomicInteger x = new AtomicInteger(0);
3842	>	AtomicReference<Throwable> r = new AtomicReference<>();
3843		g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3844		checkIncomplete(f);
3845		CFException ex = new CFException();
#	Line 3480 | Line 3850 | public class CompletableFutureTest exten
3850		}
3851
3852		/**
3853	<	* failedStage returns a Completionstage completed
3853	>	* failedStage returns a CompletionStage completed
3854		* exceptionally with the given Exception
3855		*/
3856		public void testFailedStage() {
3857		CFException ex = new CFException();
3858		CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3859	<	AtomicInteger x = new AtomicInteger();
3860	<	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3859	>	AtomicInteger x = new AtomicInteger(0);
3860	>	AtomicReference<Throwable> r = new AtomicReference<>();
3861		f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3862		assertEquals(x.get(), 0);
3863	<	assertEquals(r.get().getCause(), ex);
3863	>	assertEquals(r.get(), ex);
3864		}
3865
3866		/**
3867		* completeAsync completes with value of given supplier
3868		*/
3869		public void testCompleteAsync() {
3870	+	for (Integer v1 : new Integer[] { 1, null })
3871	+	{
3872		CompletableFuture<Integer> f = new CompletableFuture<>();
3873	<	f.completeAsync(() -> 1);
3873	>	f.completeAsync(() -> v1);
3874		f.join();
3875	<	checkCompletedNormally(f, 1);
3876	<	}
3875	>	checkCompletedNormally(f, v1);
3876	>	}}
3877
3878		/**
3879		* completeAsync completes exceptionally if given supplier throws
#	Line 3509 | Line 3881 | public class CompletableFutureTest exten
3881		public void testCompleteAsync2() {
3882		CompletableFuture<Integer> f = new CompletableFuture<>();
3883		CFException ex = new CFException();
3884	<	f.completeAsync(() -> {if (true) throw ex; return 1;});
3884	>	f.completeAsync(() -> { throw ex; });
3885		try {
3886		f.join();
3887		shouldThrow();
3888	<	} catch (Exception success) {}
3889	<	checkCompletedWithWrappedCFException(f);
3888	>	} catch (CompletionException success) {}
3889	>	checkCompletedWithWrappedException(f, ex);
3890		}
3891
3892		/**
3893		* completeAsync with given executor completes with value of given supplier
3894		*/
3895		public void testCompleteAsync3() {
3896	+	for (Integer v1 : new Integer[] { 1, null })
3897	+	{
3898		CompletableFuture<Integer> f = new CompletableFuture<>();
3899	<	f.completeAsync(() -> 1, new ThreadExecutor());
3900	<	f.join();
3901	<	checkCompletedNormally(f, 1);
3902	<	}
3899	>	ThreadExecutor executor = new ThreadExecutor();
3900	>	f.completeAsync(() -> v1, executor);
3901	>	assertSame(v1, f.join());
3902	>	checkCompletedNormally(f, v1);
3903	>	assertEquals(1, executor.count.get());
3904	>	}}
3905
3906		/**
3907		* completeAsync with given executor completes exceptionally if
#	Line 3534 | Line 3910 | public class CompletableFutureTest exten
3910		public void testCompleteAsync4() {
3911		CompletableFuture<Integer> f = new CompletableFuture<>();
3912		CFException ex = new CFException();
3913	<	f.completeAsync(() -> {if (true) throw ex; return 1;}, new ThreadExecutor());
3913	>	ThreadExecutor executor = new ThreadExecutor();
3914	>	f.completeAsync(() -> { throw ex; }, executor);
3915		try {
3916		f.join();
3917		shouldThrow();
3918	<	} catch (Exception success) {}
3919	<	checkCompletedWithWrappedCFException(f);
3918	>	} catch (CompletionException success) {}
3919	>	checkCompletedWithWrappedException(f, ex);
3920	>	assertEquals(1, executor.count.get());
3921		}
3922
3923		/**
3924		* orTimeout completes with TimeoutException if not complete
3925		*/
3926	<	public void testOrTimeout() {
3926	>	public void testOrTimeout_timesOut() {
3927	>	long timeoutMillis = timeoutMillis();
3928		CompletableFuture<Integer> f = new CompletableFuture<>();
3929	<	f.orTimeout(SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
3930	<	checkCompletedExceptionallyWithTimeout(f);
3929	>	long startTime = System.nanoTime();
3930	>	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3931	>	checkCompletedWithTimeoutException(f);
3932	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3933		}
3934
3935		/**
3936		* orTimeout completes normally if completed before timeout
3937		*/
3938	<	public void testOrTimeout2() {
3938	>	public void testOrTimeout_completed() {
3939	>	for (Integer v1 : new Integer[] { 1, null })
3940	>	{
3941		CompletableFuture<Integer> f = new CompletableFuture<>();
3942	<	f.complete(1);
3943	<	f.orTimeout(SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
3944	<	checkCompletedNormally(f, 1);
3942	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3943	>	long startTime = System.nanoTime();
3944	>	f.complete(v1);
3945	>	assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3946	>	assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3947	>	g.complete(v1);
3948	>	checkCompletedNormally(f, v1);
3949	>	checkCompletedNormally(g, v1);
3950	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3951	>	}}
3952	>
3953	>	/**
3954	>	* completeOnTimeout completes with given value if not complete
3955	>	*/
3956	>	public void testCompleteOnTimeout_timesOut() {
3957	>	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3958	>	() -> testCompleteOnTimeout_timesOut(null));
3959		}
3960
3961		/**
3962		* completeOnTimeout completes with given value if not complete
3963		*/
3964	<	public void testCompleteOnTimeout() {
3964	>	public void testCompleteOnTimeout_timesOut(Integer v) {
3965	>	long timeoutMillis = timeoutMillis();
3966		CompletableFuture<Integer> f = new CompletableFuture<>();
3967	<	f.completeOnTimeout(-1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
3968	<	f.join();
3969	<	checkCompletedNormally(f, -1);
3967	>	long startTime = System.nanoTime();
3968	>	assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS));
3969	>	assertSame(v, f.join());
3970	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3971	>	f.complete(99);         // should have no effect
3972	>	checkCompletedNormally(f, v);
3973		}
3974
3975		/**
3976		* completeOnTimeout has no effect if completed within timeout
3977		*/
3978	<	public void testCompleteOnTimeout2() {
3978	>	public void testCompleteOnTimeout_completed() {
3979	>	for (Integer v1 : new Integer[] { 1, null })
3980	>	{
3981		CompletableFuture<Integer> f = new CompletableFuture<>();
3982	<	f.complete(1);
3983	<	f.completeOnTimeout(-1, SHORT_DELAY_MS, TimeUnit.MILLISECONDS);
3984	<	checkCompletedNormally(f, 1);
3985	<	}
3982	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3983	>	long startTime = System.nanoTime();
3984	>	f.complete(v1);
3985	>	assertSame(f, f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3986	>	assertSame(g, g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3987	>	g.complete(v1);
3988	>	checkCompletedNormally(f, v1);
3989	>	checkCompletedNormally(g, v1);
3990	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3991	>	}}
3992
3993		/**
3994		* delayedExecutor returns an executor that delays submission
3995		*/
3996		public void testDelayedExecutor() {
3997	<	long timeoutMillis = SMALL_DELAY_MS;
3998	<	Executor d = CompletableFuture.delayedExecutor(timeoutMillis,
3999	<	MILLISECONDS);
3997	>	testInParallel(() -> testDelayedExecutor(null, null),
3998	>	() -> testDelayedExecutor(null, 1),
3999	>	() -> testDelayedExecutor(new ThreadExecutor(), 1),
4000	>	() -> testDelayedExecutor(new ThreadExecutor(), 1));
4001	>	}
4002	>
4003	>	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
4004	>	long timeoutMillis = timeoutMillis();
4005	>	// Use an "unreasonably long" long timeout to catch lingering threads
4006	>	long longTimeoutMillis = 1000 * 60 * 60 * 24;
4007	>	final Executor delayer, longDelayer;
4008	>	if (executor == null) {
4009	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
4010	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
4011	>	} else {
4012	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
4013	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
4014	>	}
4015		long startTime = System.nanoTime();
4016	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(() -> 1, d);
4017	<	assertNull(f.getNow(null));
4018	<	try {
4019	<	f.get(LONG_DELAY_MS, MILLISECONDS);
4020	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
4021	<	assertTrue(millisElapsedSince(startTime) > timeoutMillis/2);
4022	<	checkCompletedNormally(f, 1);
4023	<	}
4016	>	CompletableFuture<Integer> f =
4017	>	CompletableFuture.supplyAsync(() -> v, delayer);
4018	>	CompletableFuture<Integer> g =
4019	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
4020	>
4021	>	assertNull(g.getNow(null));
4022	>
4023	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
4024	>	long millisElapsed = millisElapsedSince(startTime);
4025	>	assertTrue(millisElapsed >= timeoutMillis);
4026	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
4027
4028	<	/**
4029	<	* delayedExecutor for a given executor returns an executor that
4030	<	* delays submission
4031	<	*/
3605	<	public void testDelayedExecutor2() {
3606	<	long timeoutMillis = SMALL_DELAY_MS;
3607	<	Executor d = CompletableFuture.delayedExecutor(timeoutMillis,
3608	<	MILLISECONDS,
3609	<	new ThreadExecutor());
3610	<	long startTime = System.nanoTime();
3611	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(() -> 1, d);
3612	<	assertNull(f.getNow(null));
3613	<	try {
3614	<	f.get(LONG_DELAY_MS, MILLISECONDS);
3615	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
3616	<	assertTrue(millisElapsedSince(startTime) > timeoutMillis/2);
3617	<	checkCompletedNormally(f, 1);
4028	>	checkCompletedNormally(f, v);
4029	>
4030	>	checkIncomplete(g);
4031	>	assertTrue(g.cancel(true));
4032		}
4033
4034		//--- tests of implementation details; not part of official tck ---
4035
4036		Object resultOf(CompletableFuture<?> f) {
4037	+	SecurityManager sm = System.getSecurityManager();
4038	+	if (sm != null) {
4039	+	try {
4040	+	System.setSecurityManager(null);
4041	+	} catch (SecurityException giveUp) {
4042	+	return "Reflection not available";
4043	+	}
4044	+	}
4045	+
4046		try {
4047		java.lang.reflect.Field resultField
4048		= CompletableFuture.class.getDeclaredField("result");
4049		resultField.setAccessible(true);
4050		return resultField.get(f);
4051	<	} catch (Throwable t) { throw new AssertionError(t); }
4051	>	} catch (Throwable t) {
4052	>	throw new AssertionError(t);
4053	>	} finally {
4054	>	if (sm != null) System.setSecurityManager(sm);
4055	>	}
4056		}
4057
4058		public void testExceptionPropagationReusesResultObject() {
#	Line 3636 | Line 4063 | public class CompletableFutureTest exten
4063		final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
4064		final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4065
4066	+	final Runnable noopRunnable = new Noop(m);
4067	+	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
4068	+	final Function<Integer, Integer> incFunction = new IncFunction(m);
4069	+
4070		List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
4071		= new ArrayList<>();
4072
4073	<	funs.add((y) -> m.thenRun(y, new Noop(m)));
4074	<	funs.add((y) -> m.thenAccept(y, new NoopConsumer(m)));
4075	<	funs.add((y) -> m.thenApply(y, new IncFunction(m)));
4076	<
4077	<	funs.add((y) -> m.runAfterEither(y, incomplete, new Noop(m)));
4078	<	funs.add((y) -> m.acceptEither(y, incomplete, new NoopConsumer(m)));
4079	<	funs.add((y) -> m.applyToEither(y, incomplete, new IncFunction(m)));
4080	<
4081	<	funs.add((y) -> m.runAfterBoth(y, v42, new Noop(m)));
4082	<	funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4083	<	funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
4084	<
4085	<	funs.add((y) -> m.whenComplete(y, (Integer x, Throwable t) -> {}));
4086	<
4087	<	funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
4088	<
4089	<	funs.add((y) -> CompletableFuture.allOf(new CompletableFuture<?>[] {y, v42}));
4090	<	funs.add((y) -> CompletableFuture.anyOf(new CompletableFuture<?>[] {y, incomplete}));
4073	>	funs.add(y -> m.thenRun(y, noopRunnable));
4074	>	funs.add(y -> m.thenAccept(y, noopConsumer));
4075	>	funs.add(y -> m.thenApply(y, incFunction));
4076	>
4077	>	funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable));
4078	>	funs.add(y -> m.acceptEither(y, incomplete, noopConsumer));
4079	>	funs.add(y -> m.applyToEither(y, incomplete, incFunction));
4080	>
4081	>	funs.add(y -> m.runAfterBoth(y, v42, noopRunnable));
4082	>	funs.add(y -> m.runAfterBoth(v42, y, noopRunnable));
4083	>	funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
4084	>	funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
4085	>	funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m)));
4086	>	funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m)));
4087	>
4088	>	funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
4089	>
4090	>	funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m)));
4091	>
4092	>	funs.add(y -> CompletableFuture.allOf(y));
4093	>	funs.add(y -> CompletableFuture.allOf(y, v42));
4094	>	funs.add(y -> CompletableFuture.allOf(v42, y));
4095	>	funs.add(y -> CompletableFuture.anyOf(y));
4096	>	funs.add(y -> CompletableFuture.anyOf(y, incomplete));
4097	>	funs.add(y -> CompletableFuture.anyOf(incomplete, y));
4098
4099		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4100		fun : funs) {
4101		CompletableFuture<Integer> f = new CompletableFuture<>();
4102		f.completeExceptionally(ex);
4103	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4103	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4104		checkCompletedWithWrappedException(src, ex);
4105		CompletableFuture<?> dep = fun.apply(src);
4106		checkCompletedWithWrappedException(dep, ex);
#	Line 3672 | Line 4110 | public class CompletableFutureTest exten
4110		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4111		fun : funs) {
4112		CompletableFuture<Integer> f = new CompletableFuture<>();
4113	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4113	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4114		CompletableFuture<?> dep = fun.apply(src);
4115		f.completeExceptionally(ex);
4116		checkCompletedWithWrappedException(src, ex);
#	Line 3686 | Line 4124 | public class CompletableFutureTest exten
4124		CompletableFuture<Integer> f = new CompletableFuture<>();
4125		f.cancel(mayInterruptIfRunning);
4126		checkCancelled(f);
4127	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4127	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4128		checkCompletedWithWrappedCancellationException(src);
4129		CompletableFuture<?> dep = fun.apply(src);
4130		checkCompletedWithWrappedCancellationException(dep);
#	Line 3697 | Line 4135 | public class CompletableFutureTest exten
4135		for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
4136		fun : funs) {
4137		CompletableFuture<Integer> f = new CompletableFuture<>();
4138	<	CompletableFuture<Integer> src = m.thenApply(f, new IncFunction(m));
4138	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
4139		CompletableFuture<?> dep = fun.apply(src);
4140		f.cancel(mayInterruptIfRunning);
4141		checkCancelled(f);
#	Line 3707 | Line 4145 | public class CompletableFutureTest exten
4145		}
4146		}}
4147
4148	+	/**
4149	+	* Minimal completion stages throw UOE for most non-CompletionStage methods
4150	+	*/
4151	+	public void testMinimalCompletionStage_minimality() {
4152	+	if (!testImplementationDetails) return;
4153	+	Function<Method, String> toSignature =
4154	+	method -> method.getName() + Arrays.toString(method.getParameterTypes());
4155	+	Predicate<Method> isNotStatic =
4156	+	method -> (method.getModifiers() & Modifier.STATIC) == 0;
4157	+	List<Method> minimalMethods =
4158	+	Stream.of(Object.class, CompletionStage.class)
4159	+	.flatMap(klazz -> Stream.of(klazz.getMethods()))
4160	+	.filter(isNotStatic)
4161	+	.collect(Collectors.toList());
4162	+	// Methods from CompletableFuture permitted NOT to throw UOE
4163	+	String[] signatureWhitelist = {
4164	+	"newIncompleteFuture[]",
4165	+	"defaultExecutor[]",
4166	+	"minimalCompletionStage[]",
4167	+	"copy[]",
4168	+	};
4169	+	Set<String> permittedMethodSignatures =
4170	+	Stream.concat(minimalMethods.stream().map(toSignature),
4171	+	Stream.of(signatureWhitelist))
4172	+	.collect(Collectors.toSet());
4173	+	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
4174	+	.filter(isNotStatic)
4175	+	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4176	+	.collect(Collectors.toList());
4177	+
4178	+	List<CompletionStage<Integer>> stages = new ArrayList<>();
4179	+	CompletionStage<Integer> min =
4180	+	new CompletableFuture<Integer>().minimalCompletionStage();
4181	+	stages.add(min);
4182	+	stages.add(min.thenApply(x -> x));
4183	+	stages.add(CompletableFuture.completedStage(1));
4184	+	stages.add(CompletableFuture.failedStage(new CFException()));
4185	+
4186	+	List<Method> bugs = new ArrayList<>();
4187	+	for (Method method : allMethods) {
4188	+	Class<?>[] parameterTypes = method.getParameterTypes();
4189	+	Object[] args = new Object[parameterTypes.length];
4190	+	// Manufacture boxed primitives for primitive params
4191	+	for (int i = 0; i < args.length; i++) {
4192	+	Class<?> type = parameterTypes[i];
4193	+	if      (type == boolean.class) args[i] = false;
4194	+	else if (type == int.class)     args[i] = 0;
4195	+	else if (type == long.class)    args[i] = 0L;
4196	+	}
4197	+	for (CompletionStage<Integer> stage : stages) {
4198	+	try {
4199	+	method.invoke(stage, args);
4200	+	bugs.add(method);
4201	+	}
4202	+	catch (java.lang.reflect.InvocationTargetException expected) {
4203	+	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4204	+	bugs.add(method);
4205	+	// expected.getCause().printStackTrace();
4206	+	}
4207	+	}
4208	+	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4209	+	}
4210	+	}
4211	+	if (!bugs.isEmpty())
4212	+	throw new Error("Methods did not throw UOE: " + bugs);
4213	+	}
4214	+
4215	+	/**
4216	+	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4217	+	* is completed normally, with the same value, when source is.
4218	+	*/
4219	+	public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() {
4220	+	for (boolean createIncomplete : new boolean[] { true, false })
4221	+	for (Integer v1 : new Integer[] { 1, null })
4222	+	{
4223	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4224	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4225	+	if (!createIncomplete) assertTrue(f.complete(v1));
4226	+	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4227	+	if (createIncomplete) {
4228	+	checkIncomplete(f);
4229	+	checkIncomplete(g);
4230	+	assertTrue(f.complete(v1));
4231	+	}
4232	+	checkCompletedNormally(f, v1);
4233	+	checkCompletedNormally(g, v1);
4234	+	}}
4235	+
4236	+	/**
4237	+	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4238	+	* is completed exceptionally when source is.
4239	+	*/
4240	+	public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() {
4241	+	for (boolean createIncomplete : new boolean[] { true, false })
4242	+	{
4243	+	CFException ex = new CFException();
4244	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4245	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4246	+	if (!createIncomplete) f.completeExceptionally(ex);
4247	+	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4248	+	if (createIncomplete) {
4249	+	checkIncomplete(f);
4250	+	checkIncomplete(g);
4251	+	f.completeExceptionally(ex);
4252	+	}
4253	+	checkCompletedExceptionally(f, ex);
4254	+	checkCompletedWithWrappedException(g, ex);
4255	+	}}
4256	+
4257	+	/**
4258	+	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4259	+	*/
4260	+	public void testMinimalCompletionStage_toCompletableFuture_mutable() {
4261	+	for (Integer v1 : new Integer[] { 1, null })
4262	+	{
4263	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4264	+	CompletionStage minimal = f.minimalCompletionStage();
4265	+	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4266	+	assertTrue(g.complete(v1));
4267	+	checkCompletedNormally(g, v1);
4268	+	checkIncomplete(f);
4269	+	checkIncomplete(minimal.toCompletableFuture());
4270	+	}}
4271	+
4272	+	/**
4273	+	* minimalStage.toCompletableFuture().join() awaits completion
4274	+	*/
4275	+	public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception {
4276	+	for (boolean createIncomplete : new boolean[] { true, false })
4277	+	for (Integer v1 : new Integer[] { 1, null })
4278	+	{
4279	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4280	+	if (!createIncomplete) assertTrue(f.complete(v1));
4281	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4282	+	if (createIncomplete) assertTrue(f.complete(v1));
4283	+	assertEquals(v1, minimal.toCompletableFuture().join());
4284	+	assertEquals(v1, minimal.toCompletableFuture().get());
4285	+	checkCompletedNormally(minimal.toCompletableFuture(), v1);
4286	+	}}
4287	+
4288	+	/**
4289	+	* Completion of a toCompletableFuture copy of a minimal stage
4290	+	* does not complete its source.
4291	+	*/
4292	+	public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() {
4293	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4294	+	CompletionStage<Integer> g = f.minimalCompletionStage();
4295	+	assertTrue(g.toCompletableFuture().complete(1));
4296	+	assertTrue(g.toCompletableFuture().complete(null));
4297	+	assertTrue(g.toCompletableFuture().cancel(true));
4298	+	assertTrue(g.toCompletableFuture().cancel(false));
4299	+	assertTrue(g.toCompletableFuture().completeExceptionally(new CFException()));
4300	+	checkIncomplete(g.toCompletableFuture());
4301	+	f.complete(1);
4302	+	checkCompletedNormally(g.toCompletableFuture(), 1);
4303	+	}
4304	+
4305	+	/** Demo utility method for external reliable toCompletableFuture */
4306	+	static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) {
4307	+	CompletableFuture<T> f = new CompletableFuture<>();
4308	+	stage.handle((T t, Throwable ex) -> {
4309	+	if (ex != null) f.completeExceptionally(ex);
4310	+	else f.complete(t);
4311	+	return null;
4312	+	});
4313	+	return f;
4314	+	}
4315	+
4316	+	/** Demo utility method to join a CompletionStage */
4317	+	static <T> T join(CompletionStage<T> stage) {
4318	+	return toCompletableFuture(stage).join();
4319	+	}
4320	+
4321	+	/**
4322	+	* Joining a minimal stage "by hand" works
4323	+	*/
4324	+	public void testMinimalCompletionStage_join_by_hand() {
4325	+	for (boolean createIncomplete : new boolean[] { true, false })
4326	+	for (Integer v1 : new Integer[] { 1, null })
4327	+	{
4328	+	CompletableFuture<Integer> f = new CompletableFuture<>();
4329	+	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4330	+	CompletableFuture<Integer> g = new CompletableFuture<>();
4331	+	if (!createIncomplete) assertTrue(f.complete(v1));
4332	+	minimal.thenAccept(x -> g.complete(x));
4333	+	if (createIncomplete) assertTrue(f.complete(v1));
4334	+	g.join();
4335	+	checkCompletedNormally(g, v1);
4336	+	checkCompletedNormally(f, v1);
4337	+	assertEquals(v1, join(minimal));
4338	+	}}
4339	+
4340	+	static class Monad {
4341	+	static class ZeroException extends RuntimeException {
4342	+	public ZeroException() { super("monadic zero"); }
4343	+	}
4344	+	// "return", "unit"
4345	+	static <T> CompletableFuture<T> unit(T value) {
4346	+	return completedFuture(value);
4347	+	}
4348	+	// monadic zero ?
4349	+	static <T> CompletableFuture<T> zero() {
4350	+	return failedFuture(new ZeroException());
4351	+	}
4352	+	// >=>
4353	+	static <T,U,V> Function<T, CompletableFuture<V>> compose
4354	+	(Function<T, CompletableFuture<U>> f,
4355	+	Function<U, CompletableFuture<V>> g) {
4356	+	return x -> f.apply(x).thenCompose(g);
4357	+	}
4358	+
4359	+	static void assertZero(CompletableFuture<?> f) {
4360	+	try {
4361	+	f.getNow(null);
4362	+	throw new AssertionError("should throw");
4363	+	} catch (CompletionException success) {
4364	+	assertTrue(success.getCause() instanceof ZeroException);
4365	+	}
4366	+	}
4367	+
4368	+	static <T> void assertFutureEquals(CompletableFuture<T> f,
4369	+	CompletableFuture<T> g) {
4370	+	T fval = null, gval = null;
4371	+	Throwable fex = null, gex = null;
4372	+
4373	+	try { fval = f.get(); }
4374	+	catch (ExecutionException ex) { fex = ex.getCause(); }
4375	+	catch (Throwable ex) { fex = ex; }
4376	+
4377	+	try { gval = g.get(); }
4378	+	catch (ExecutionException ex) { gex = ex.getCause(); }
4379	+	catch (Throwable ex) { gex = ex; }
4380	+
4381	+	if (fex != null || gex != null)
4382	+	assertSame(fex.getClass(), gex.getClass());
4383	+	else
4384	+	assertEquals(fval, gval);
4385	+	}
4386	+
4387	+	static class PlusFuture<T> extends CompletableFuture<T> {
4388	+	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4389	+	}
4390	+
4391	+	/** Implements "monadic plus". */
4392	+	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
4393	+	CompletableFuture<? extends T> g) {
4394	+	PlusFuture<T> plus = new PlusFuture<T>();
4395	+	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
4396	+	try {
4397	+	if (ex == null) {
4398	+	if (plus.complete(result))
4399	+	if (plus.firstFailure.get() != null)
4400	+	plus.firstFailure.set(null);
4401	+	}
4402	+	else if (plus.firstFailure.compareAndSet(null, ex)) {
4403	+	if (plus.isDone())
4404	+	plus.firstFailure.set(null);
4405	+	}
4406	+	else {
4407	+	// first failure has precedence
4408	+	Throwable first = plus.firstFailure.getAndSet(null);
4409	+
4410	+	// may fail with "Self-suppression not permitted"
4411	+	try { first.addSuppressed(ex); }
4412	+	catch (Exception ignored) {}
4413	+
4414	+	plus.completeExceptionally(first);
4415	+	}
4416	+	} catch (Throwable unexpected) {
4417	+	plus.completeExceptionally(unexpected);
4418	+	}
4419	+	};
4420	+	f.whenComplete(action);
4421	+	g.whenComplete(action);
4422	+	return plus;
4423	+	}
4424	+	}
4425	+
4426	+	/**
4427	+	* CompletableFuture is an additive monad - sort of.
4428	+	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
4429	+	*/
4430	+	public void testAdditiveMonad() throws Throwable {
4431	+	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
4432	+	CompletableFuture<Long> zero = Monad.zero();
4433	+
4434	+	// Some mutually non-commutative functions
4435	+	Function<Long, CompletableFuture<Long>> triple
4436	+	= x -> Monad.unit(3 * x);
4437	+	Function<Long, CompletableFuture<Long>> inc
4438	+	= x -> Monad.unit(x + 1);
4439	+
4440	+	// unit is a right identity: m >>= unit === m
4441	+	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
4442	+	inc.apply(5L));
4443	+	// unit is a left identity: (unit x) >>= f === f x
4444	+	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
4445	+	inc.apply(5L));
4446	+
4447	+	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4448	+	Monad.assertFutureEquals(
4449	+	unit.apply(5L).thenCompose(inc).thenCompose(triple),
4450	+	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4451	+
4452	+	// The case for CompletableFuture as an additive monad is weaker...
4453	+
4454	+	// zero is a monadic zero
4455	+	Monad.assertZero(zero);
4456	+
4457	+	// left zero: zero >>= f === zero
4458	+	Monad.assertZero(zero.thenCompose(inc));
4459	+	// right zero: f >>= (\x -> zero) === zero
4460	+	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4461	+
4462	+	// f plus zero === f
4463	+	Monad.assertFutureEquals(Monad.unit(5L),
4464	+	Monad.plus(Monad.unit(5L), zero));
4465	+	// zero plus f === f
4466	+	Monad.assertFutureEquals(Monad.unit(5L),
4467	+	Monad.plus(zero, Monad.unit(5L)));
4468	+	// zero plus zero === zero
4469	+	Monad.assertZero(Monad.plus(zero, zero));
4470	+	{
4471	+	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
4472	+	Monad.unit(8L));
4473	+	// non-determinism
4474	+	assertTrue(f.get() == 5L || f.get() == 8L);
4475	+	}
4476	+
4477	+	CompletableFuture<Long> godot = new CompletableFuture<>();
4478	+	// f plus godot === f (doesn't wait for godot)
4479	+	Monad.assertFutureEquals(Monad.unit(5L),
4480	+	Monad.plus(Monad.unit(5L), godot));
4481	+	// godot plus f === f (doesn't wait for godot)
4482	+	Monad.assertFutureEquals(Monad.unit(5L),
4483	+	Monad.plus(godot, Monad.unit(5L)));
4484	+	}
4485	+
4486	+	/** Test long recursive chains of CompletableFutures with cascading completions */
4487	+	@SuppressWarnings("FutureReturnValueIgnored")
4488	+	public void testRecursiveChains() throws Throwable {
4489	+	for (ExecutionMode m : ExecutionMode.values())
4490	+	for (boolean addDeadEnds : new boolean[] { true, false })
4491	+	{
4492	+	final int val = 42;
4493	+	final int n = expensiveTests ? 1_000 : 2;
4494	+	CompletableFuture<Integer> head = new CompletableFuture<>();
4495	+	CompletableFuture<Integer> tail = head;
4496	+	for (int i = 0; i < n; i++) {
4497	+	if (addDeadEnds) m.thenApply(tail, v -> v + 1);
4498	+	tail = m.thenApply(tail, v -> v + 1);
4499	+	if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1);
4500	+	tail = m.applyToEither(tail, tail, v -> v + 1);
4501	+	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1);
4502	+	tail = m.thenCombine(tail, tail, (v, w) -> v + 1);
4503	+	}
4504	+	head.complete(val);
4505	+	assertEquals(val + 3 * n, (int) tail.join());
4506	+	}}
4507	+
4508	+	/**
4509	+	* A single CompletableFuture with many dependents.
4510	+	* A demo of scalability - runtime is O(n).
4511	+	*/
4512	+	@SuppressWarnings("FutureReturnValueIgnored")
4513	+	public void testManyDependents() throws Throwable {
4514	+	final int n = expensiveTests ? 1_000_000 : 10;
4515	+	final CompletableFuture<Void> head = new CompletableFuture<>();
4516	+	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4517	+	final AtomicInteger count = new AtomicInteger(0);
4518	+	for (int i = 0; i < n; i++) {
4519	+	head.thenRun(() -> count.getAndIncrement());
4520	+	head.thenAccept(x -> count.getAndIncrement());
4521	+	head.thenApply(x -> count.getAndIncrement());
4522	+
4523	+	head.runAfterBoth(complete, () -> count.getAndIncrement());
4524	+	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
4525	+	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
4526	+	complete.runAfterBoth(head, () -> count.getAndIncrement());
4527	+	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
4528	+	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4529	+
4530	+	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4531	+	head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4532	+	head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4533	+	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4534	+	new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement());
4535	+	new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement());
4536	+	}
4537	+	head.complete(null);
4538	+	assertEquals(5 * 3 * n, count.get());
4539	+	}
4540	+
4541	+	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4542	+	@SuppressWarnings("FutureReturnValueIgnored")
4543	+	public void testCoCompletionGarbageRetention() throws Throwable {
4544	+	final int n = expensiveTests ? 1_000_000 : 10;
4545	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4546	+	CompletableFuture<Integer> f;
4547	+	for (int i = 0; i < n; i++) {
4548	+	f = new CompletableFuture<>();
4549	+	f.runAfterEither(incomplete, () -> {});
4550	+	f.complete(null);
4551	+
4552	+	f = new CompletableFuture<>();
4553	+	f.acceptEither(incomplete, x -> {});
4554	+	f.complete(null);
4555	+
4556	+	f = new CompletableFuture<>();
4557	+	f.applyToEither(incomplete, x -> x);
4558	+	f.complete(null);
4559	+
4560	+	f = new CompletableFuture<>();
4561	+	CompletableFuture.anyOf(f, incomplete);
4562	+	f.complete(null);
4563	+	}
4564	+
4565	+	for (int i = 0; i < n; i++) {
4566	+	f = new CompletableFuture<>();
4567	+	incomplete.runAfterEither(f, () -> {});
4568	+	f.complete(null);
4569	+
4570	+	f = new CompletableFuture<>();
4571	+	incomplete.acceptEither(f, x -> {});
4572	+	f.complete(null);
4573	+
4574	+	f = new CompletableFuture<>();
4575	+	incomplete.applyToEither(f, x -> x);
4576	+	f.complete(null);
4577	+
4578	+	f = new CompletableFuture<>();
4579	+	CompletableFuture.anyOf(incomplete, f);
4580	+	f.complete(null);
4581	+	}
4582	+	}
4583	+
4584	+	/**
4585	+	* Reproduction recipe for:
4586	+	* 8160402: Garbage retention with CompletableFuture.anyOf
4587	+	* 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
4588	+	*/
4589	+	public void testAnyOfGarbageRetention() throws Throwable {
4590	+	for (Integer v : new Integer[] { 1, null })
4591	+	{
4592	+	final int n = expensiveTests ? 100_000 : 10;
4593	+	CompletableFuture<Integer>[] fs
4594	+	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4595	+	for (int i = 0; i < fs.length; i++)
4596	+	fs[i] = new CompletableFuture<>();
4597	+	fs[fs.length - 1].complete(v);
4598	+	for (int i = 0; i < n; i++)
4599	+	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4600	+	}}
4601	+
4602	+	/**
4603	+	* Checks for garbage retention with allOf.
4604	+	*
4605	+	* As of 2016-07, fails with OOME:
4606	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4607	+	*/
4608	+	public void testCancelledAllOfGarbageRetention() throws Throwable {
4609	+	final int n = expensiveTests ? 100_000 : 10;
4610	+	CompletableFuture<Integer>[] fs
4611	+	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4612	+	for (int i = 0; i < fs.length; i++)
4613	+	fs[i] = new CompletableFuture<>();
4614	+	for (int i = 0; i < n; i++)
4615	+	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4616	+	}
4617	+
4618	+	/**
4619	+	* Checks for garbage retention when a dependent future is
4620	+	* cancelled and garbage-collected.
4621	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4622	+	*
4623	+	* As of 2016-07, fails with OOME:
4624	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4625	+	*/
4626	+	public void testCancelledGarbageRetention() throws Throwable {
4627	+	final int n = expensiveTests ? 100_000 : 10;
4628	+	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4629	+	for (int i = 0; i < n; i++)
4630	+	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4631	+	}
4632	+
4633	+	/**
4634	+	* Checks for garbage retention when MinimalStage.toCompletableFuture()
4635	+	* is invoked many times.
4636	+	* 8161600: Garbage retention when source CompletableFutures are never completed
4637	+	*
4638	+	* As of 2016-07, fails with OOME:
4639	+	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck
4640	+	*/
4641	+	public void testToCompletableFutureGarbageRetention() throws Throwable {
4642	+	final int n = expensiveTests ? 900_000 : 10;
4643	+	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4644	+	CompletionStage minimal = neverCompleted.minimalCompletionStage();
4645	+	for (int i = 0; i < n; i++)
4646	+	assertTrue(minimal.toCompletableFuture().cancel(true));
4647	+	}
4648	+
4649	+	//     static <U> U join(CompletionStage<U> stage) {
4650	+	//         CompletableFuture<U> f = new CompletableFuture<>();
4651	+	//         stage.whenComplete((v, ex) -> {
4652	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4653	+	//         });
4654	+	//         return f.join();
4655	+	//     }
4656	+
4657	+	//     static <U> boolean isDone(CompletionStage<U> stage) {
4658	+	//         CompletableFuture<U> f = new CompletableFuture<>();
4659	+	//         stage.whenComplete((v, ex) -> {
4660	+	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4661	+	//         });
4662	+	//         return f.isDone();
4663	+	//     }
4664	+
4665	+	//     static <U> U join2(CompletionStage<U> stage) {
4666	+	//         return stage.toCompletableFuture().copy().join();
4667	+	//     }
4668	+
4669	+	//     static <U> boolean isDone2(CompletionStage<U> stage) {
4670	+	//         return stage.toCompletableFuture().copy().isDone();
4671	+	//     }
4672	+
4673	+	// For testing default implementations
4674	+	// Only non-default interface methods defined.
4675	+	static final class DelegatedCompletionStage<T> implements CompletionStage<T> {
4676	+	final CompletableFuture<T> cf;
4677	+	DelegatedCompletionStage(CompletableFuture<T> cf) { this.cf = cf; }
4678	+	public CompletableFuture<T> toCompletableFuture() {
4679	+	return cf; }
4680	+	public CompletionStage<Void> thenRun
4681	+	(Runnable action) {
4682	+	return cf.thenRun(action); }
4683	+	public CompletionStage<Void> thenRunAsync
4684	+	(Runnable action) {
4685	+	return cf.thenRunAsync(action); }
4686	+	public CompletionStage<Void> thenRunAsync
4687	+	(Runnable action,
4688	+	Executor executor) {
4689	+	return cf.thenRunAsync(action, executor); }
4690	+	public CompletionStage<Void> thenAccept
4691	+	(Consumer<? super T> action) {
4692	+	return cf.thenAccept(action); }
4693	+	public CompletionStage<Void> thenAcceptAsync
4694	+	(Consumer<? super T> action) {
4695	+	return cf.thenAcceptAsync(action); }
4696	+	public CompletionStage<Void> thenAcceptAsync
4697	+	(Consumer<? super T> action,
4698	+	Executor executor) {
4699	+	return cf.thenAcceptAsync(action, executor); }
4700	+	public <U> CompletionStage<U> thenApply
4701	+	(Function<? super T,? extends U> a) {
4702	+	return cf.thenApply(a); }
4703	+	public <U> CompletionStage<U> thenApplyAsync
4704	+	(Function<? super T,? extends U> fn) {
4705	+	return cf.thenApplyAsync(fn); }
4706	+	public <U> CompletionStage<U> thenApplyAsync
4707	+	(Function<? super T,? extends U> fn,
4708	+	Executor executor) {
4709	+	return cf.thenApplyAsync(fn, executor); }
4710	+	public <U,V> CompletionStage<V> thenCombine
4711	+	(CompletionStage<? extends U> other,
4712	+	BiFunction<? super T,? super U,? extends V> fn) {
4713	+	return cf.thenCombine(other, fn); }
4714	+	public <U,V> CompletionStage<V> thenCombineAsync
4715	+	(CompletionStage<? extends U> other,
4716	+	BiFunction<? super T,? super U,? extends V> fn) {
4717	+	return cf.thenCombineAsync(other, fn); }
4718	+	public <U,V> CompletionStage<V> thenCombineAsync
4719	+	(CompletionStage<? extends U> other,
4720	+	BiFunction<? super T,? super U,? extends V> fn,
4721	+	Executor executor) {
4722	+	return cf.thenCombineAsync(other, fn, executor); }
4723	+	public <U> CompletionStage<Void> thenAcceptBoth
4724	+	(CompletionStage<? extends U> other,
4725	+	BiConsumer<? super T, ? super U> action) {
4726	+	return cf.thenAcceptBoth(other, action); }
4727	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4728	+	(CompletionStage<? extends U> other,
4729	+	BiConsumer<? super T, ? super U> action) {
4730	+	return cf.thenAcceptBothAsync(other, action); }
4731	+	public <U> CompletionStage<Void> thenAcceptBothAsync
4732	+	(CompletionStage<? extends U> other,
4733	+	BiConsumer<? super T, ? super U> action,
4734	+	Executor executor) {
4735	+	return cf.thenAcceptBothAsync(other, action, executor); }
4736	+	public CompletionStage<Void> runAfterBoth
4737	+	(CompletionStage<?> other,
4738	+	Runnable action) {
4739	+	return cf.runAfterBoth(other, action); }
4740	+	public CompletionStage<Void> runAfterBothAsync
4741	+	(CompletionStage<?> other,
4742	+	Runnable action) {
4743	+	return cf.runAfterBothAsync(other, action); }
4744	+	public CompletionStage<Void> runAfterBothAsync
4745	+	(CompletionStage<?> other,
4746	+	Runnable action,
4747	+	Executor executor) {
4748	+	return cf.runAfterBothAsync(other, action, executor); }
4749	+	public <U> CompletionStage<U> applyToEither
4750	+	(CompletionStage<? extends T> other,
4751	+	Function<? super T, U> fn) {
4752	+	return cf.applyToEither(other, fn); }
4753	+	public <U> CompletionStage<U> applyToEitherAsync
4754	+	(CompletionStage<? extends T> other,
4755	+	Function<? super T, U> fn) {
4756	+	return cf.applyToEitherAsync(other, fn); }
4757	+	public <U> CompletionStage<U> applyToEitherAsync
4758	+	(CompletionStage<? extends T> other,
4759	+	Function<? super T, U> fn,
4760	+	Executor executor) {
4761	+	return cf.applyToEitherAsync(other, fn, executor); }
4762	+	public CompletionStage<Void> acceptEither
4763	+	(CompletionStage<? extends T> other,
4764	+	Consumer<? super T> action) {
4765	+	return cf.acceptEither(other, action); }
4766	+	public CompletionStage<Void> acceptEitherAsync
4767	+	(CompletionStage<? extends T> other,
4768	+	Consumer<? super T> action) {
4769	+	return cf.acceptEitherAsync(other, action); }
4770	+	public CompletionStage<Void> acceptEitherAsync
4771	+	(CompletionStage<? extends T> other,
4772	+	Consumer<? super T> action,
4773	+	Executor executor) {
4774	+	return cf.acceptEitherAsync(other, action, executor); }
4775	+	public CompletionStage<Void> runAfterEither
4776	+	(CompletionStage<?> other,
4777	+	Runnable action) {
4778	+	return cf.runAfterEither(other, action); }
4779	+	public CompletionStage<Void> runAfterEitherAsync
4780	+	(CompletionStage<?> other,
4781	+	Runnable action) {
4782	+	return cf.runAfterEitherAsync(other, action); }
4783	+	public CompletionStage<Void> runAfterEitherAsync
4784	+	(CompletionStage<?> other,
4785	+	Runnable action,
4786	+	Executor executor) {
4787	+	return cf.runAfterEitherAsync(other, action, executor); }
4788	+	public <U> CompletionStage<U> thenCompose
4789	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4790	+	return cf.thenCompose(fn); }
4791	+	public <U> CompletionStage<U> thenComposeAsync
4792	+	(Function<? super T, ? extends CompletionStage<U>> fn) {
4793	+	return cf.thenComposeAsync(fn); }
4794	+	public <U> CompletionStage<U> thenComposeAsync
4795	+	(Function<? super T, ? extends CompletionStage<U>> fn,
4796	+	Executor executor) {
4797	+	return cf.thenComposeAsync(fn, executor); }
4798	+	public <U> CompletionStage<U> handle
4799	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4800	+	return cf.handle(fn); }
4801	+	public <U> CompletionStage<U> handleAsync
4802	+	(BiFunction<? super T, Throwable, ? extends U> fn) {
4803	+	return cf.handleAsync(fn); }
4804	+	public <U> CompletionStage<U> handleAsync
4805	+	(BiFunction<? super T, Throwable, ? extends U> fn,
4806	+	Executor executor) {
4807	+	return cf.handleAsync(fn, executor); }
4808	+	public CompletionStage<T> whenComplete
4809	+	(BiConsumer<? super T, ? super Throwable> action) {
4810	+	return cf.whenComplete(action); }
4811	+	public CompletionStage<T> whenCompleteAsync
4812	+	(BiConsumer<? super T, ? super Throwable> action) {
4813	+	return cf.whenCompleteAsync(action); }
4814	+	public CompletionStage<T> whenCompleteAsync
4815	+	(BiConsumer<? super T, ? super Throwable> action,
4816	+	Executor executor) {
4817	+	return cf.whenCompleteAsync(action, executor); }
4818	+	public CompletionStage<T> exceptionally
4819	+	(Function<Throwable, ? extends T> fn) {
4820	+	return cf.exceptionally(fn); }
4821	+	}
4822	+
4823	+	/**
4824	+	* default-implemented exceptionallyAsync action is not invoked when
4825	+	* source completes normally, and source result is propagated
4826	+	*/
4827	+	public void testDefaultExceptionallyAsync_normalCompletion() {
4828	+	for (boolean createIncomplete : new boolean[] { true, false })
4829	+	for (Integer v1 : new Integer[] { 1, null })
4830	+	{
4831	+	final AtomicInteger ran = new AtomicInteger(0);
4832	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4833	+	final DelegatedCompletionStage<Integer> d =
4834	+	new DelegatedCompletionStage<Integer>(f);
4835	+	if (!createIncomplete) assertTrue(f.complete(v1));
4836	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4837	+	((Throwable t) -> {
4838	+	ran.getAndIncrement();
4839	+	throw new AssertionError("should not be called");
4840	+	});
4841	+	if (createIncomplete) assertTrue(f.complete(v1));
4842	+
4843	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4844	+	checkCompletedNormally(f, v1);
4845	+	assertEquals(0, ran.get());
4846	+	}}
4847	+
4848	+	/**
4849	+	* default-implemented exceptionallyAsync action completes with
4850	+	* function value on source exception
4851	+	*/
4852	+	public void testDefaultExceptionallyAsync_exceptionalCompletion() {
4853	+	for (boolean createIncomplete : new boolean[] { true, false })
4854	+	for (Integer v1 : new Integer[] { 1, null })
4855	+	{
4856	+	final AtomicInteger ran = new AtomicInteger(0);
4857	+	final CFException ex = new CFException();
4858	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4859	+	final DelegatedCompletionStage<Integer> d =
4860	+	new DelegatedCompletionStage<Integer>(f);
4861	+	if (!createIncomplete) f.completeExceptionally(ex);
4862	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4863	+	((Throwable t) -> {
4864	+	assertSame(t, ex);
4865	+	ran.getAndIncrement();
4866	+	return v1;
4867	+	});
4868	+	if (createIncomplete) f.completeExceptionally(ex);
4869	+
4870	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4871	+	checkCompletedExceptionally(f, ex);
4872	+	assertEquals(1, ran.get());
4873	+	}}
4874	+
4875	+	/**
4876	+	* Under default implementation, if an "exceptionally action"
4877	+	* throws an exception, it completes exceptionally with that
4878	+	* exception
4879	+	*/
4880	+	public void testDefaultExceptionallyAsync_exceptionalCompletionActionFailed() {
4881	+	for (boolean createIncomplete : new boolean[] { true, false })
4882	+	{
4883	+	final AtomicInteger ran = new AtomicInteger(0);
4884	+	final CFException ex1 = new CFException();
4885	+	final CFException ex2 = new CFException();
4886	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4887	+	final DelegatedCompletionStage<Integer> d =
4888	+	new DelegatedCompletionStage<Integer>(f);
4889	+	if (!createIncomplete) f.completeExceptionally(ex1);
4890	+	final CompletionStage<Integer> g = d.exceptionallyAsync
4891	+	((Throwable t) -> {
4892	+	assertSame(t, ex1);
4893	+	ran.getAndIncrement();
4894	+	throw ex2;
4895	+	});
4896	+	if (createIncomplete) f.completeExceptionally(ex1);
4897	+
4898	+	checkCompletedWithWrappedException(g.toCompletableFuture(), ex2);
4899	+	checkCompletedExceptionally(f, ex1);
4900	+	checkCompletedExceptionally(d.toCompletableFuture(), ex1);
4901	+	assertEquals(1, ran.get());
4902	+	}}
4903	+
4904	+	/**
4905	+	* default-implemented exceptionallyCompose result completes
4906	+	* normally after normal completion of source
4907	+	*/
4908	+	public void testDefaultExceptionallyCompose_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.SYNC);
4915	+	final DelegatedCompletionStage<Integer> d =
4916	+	new DelegatedCompletionStage<Integer>(f);
4917	+	if (!createIncomplete) assertTrue(f.complete(v1));
4918	+	final CompletionStage<Integer> g = d.exceptionallyCompose(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 exceptionallyCompose result completes
4928	+	* normally after exceptional completion of source
4929	+	*/
4930	+	public void testDefaultExceptionallyCompose_exceptionalCompletion() {
4931	+	for (boolean createIncomplete : new boolean[] { true, false })
4932	+	{
4933	+	final CFException ex = new CFException();
4934	+	final ExceptionalCompletableFutureFunction r =
4935	+	new ExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
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.exceptionallyCompose(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 exceptionallyCompose completes
4950	+	* exceptionally on exception if action does
4951	+	*/
4952	+	public void testDefaultExceptionallyCompose_actionFailed() {
4953	+	for (boolean createIncomplete : new boolean[] { true, false })
4954	+	{
4955	+	final CFException ex = new CFException();
4956	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4957	+	final FailingExceptionalCompletableFutureFunction r
4958	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.SYNC);
4959	+	final DelegatedCompletionStage<Integer> d =
4960	+	new DelegatedCompletionStage<Integer>(f);
4961	+	if (!createIncomplete) f.completeExceptionally(ex);
4962	+	final CompletionStage<Integer> g = d.exceptionallyCompose(r);
4963	+	if (createIncomplete) f.completeExceptionally(ex);
4964	+
4965	+	checkCompletedExceptionally(f, ex);
4966	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
4967	+	r.assertInvoked();
4968	+	}}
4969	+
4970	+	/**
4971	+	* default-implemented exceptionallyComposeAsync result completes
4972	+	* normally after normal completion of source
4973	+	*/
4974	+	public void testDefaultExceptionallyComposeAsync_normalCompletion() {
4975	+	for (boolean createIncomplete : new boolean[] { true, false })
4976	+	for (Integer v1 : new Integer[] { 1, null })
4977	+	{
4978	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
4979	+	final ExceptionalCompletableFutureFunction r =
4980	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
4981	+	final DelegatedCompletionStage<Integer> d =
4982	+	new DelegatedCompletionStage<Integer>(f);
4983	+	if (!createIncomplete) assertTrue(f.complete(v1));
4984	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
4985	+	if (createIncomplete) assertTrue(f.complete(v1));
4986	+
4987	+	checkCompletedNormally(f, v1);
4988	+	checkCompletedNormally(g.toCompletableFuture(), v1);
4989	+	r.assertNotInvoked();
4990	+	}}
4991	+
4992	+	/**
4993	+	* default-implemented exceptionallyComposeAsync result completes
4994	+	* normally after exceptional completion of source
4995	+	*/
4996	+	public void testDefaultExceptionallyComposeAsync_exceptionalCompletion() {
4997	+	for (boolean createIncomplete : new boolean[] { true, false })
4998	+	{
4999	+	final CFException ex = new CFException();
5000	+	final ExceptionalCompletableFutureFunction r =
5001	+	new ExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
5002	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5003	+	final DelegatedCompletionStage<Integer> d =
5004	+	new DelegatedCompletionStage<Integer>(f);
5005	+	if (!createIncomplete) f.completeExceptionally(ex);
5006	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5007	+	if (createIncomplete) f.completeExceptionally(ex);
5008	+
5009	+	checkCompletedExceptionally(f, ex);
5010	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5011	+	r.assertInvoked();
5012	+	}}
5013	+
5014	+	/**
5015	+	* default-implemented exceptionallyComposeAsync completes
5016	+	* exceptionally on exception if action does
5017	+	*/
5018	+	public void testDefaultExceptionallyComposeAsync_actionFailed() {
5019	+	for (boolean createIncomplete : new boolean[] { true, false })
5020	+	{
5021	+	final CFException ex = new CFException();
5022	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5023	+	final FailingExceptionalCompletableFutureFunction r
5024	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.ASYNC);
5025	+	final DelegatedCompletionStage<Integer> d =
5026	+	new DelegatedCompletionStage<Integer>(f);
5027	+	if (!createIncomplete) f.completeExceptionally(ex);
5028	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r);
5029	+	if (createIncomplete) f.completeExceptionally(ex);
5030	+
5031	+	checkCompletedExceptionally(f, ex);
5032	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5033	+	r.assertInvoked();
5034	+	}}
5035	+
5036	+	/**
5037	+	* default-implemented exceptionallyComposeAsync result completes
5038	+	* normally after normal completion of source
5039	+	*/
5040	+	public void testDefaultExceptionallyComposeAsyncExecutor_normalCompletion() {
5041	+	for (boolean createIncomplete : new boolean[] { true, false })
5042	+	for (Integer v1 : new Integer[] { 1, null })
5043	+	{
5044	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5045	+	final ExceptionalCompletableFutureFunction r =
5046	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5047	+	final DelegatedCompletionStage<Integer> d =
5048	+	new DelegatedCompletionStage<Integer>(f);
5049	+	if (!createIncomplete) assertTrue(f.complete(v1));
5050	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5051	+	if (createIncomplete) assertTrue(f.complete(v1));
5052	+
5053	+	checkCompletedNormally(f, v1);
5054	+	checkCompletedNormally(g.toCompletableFuture(), v1);
5055	+	r.assertNotInvoked();
5056	+	}}
5057	+
5058	+	/**
5059	+	* default-implemented exceptionallyComposeAsync result completes
5060	+	* normally after exceptional completion of source
5061	+	*/
5062	+	public void testDefaultExceptionallyComposeAsyncExecutor_exceptionalCompletion() {
5063	+	for (boolean createIncomplete : new boolean[] { true, false })
5064	+	{
5065	+	final CFException ex = new CFException();
5066	+	final ExceptionalCompletableFutureFunction r =
5067	+	new ExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5068	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5069	+	final DelegatedCompletionStage<Integer> d =
5070	+	new DelegatedCompletionStage<Integer>(f);
5071	+	if (!createIncomplete) f.completeExceptionally(ex);
5072	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5073	+	if (createIncomplete) f.completeExceptionally(ex);
5074	+
5075	+	checkCompletedExceptionally(f, ex);
5076	+	checkCompletedNormally(g.toCompletableFuture(), r.value);
5077	+	r.assertInvoked();
5078	+	}}
5079	+
5080	+	/**
5081	+	* default-implemented exceptionallyComposeAsync completes
5082	+	* exceptionally on exception if action does
5083	+	*/
5084	+	public void testDefaultExceptionallyComposeAsyncExecutor_actionFailed() {
5085	+	for (boolean createIncomplete : new boolean[] { true, false })
5086	+	{
5087	+	final CFException ex = new CFException();
5088	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
5089	+	final FailingExceptionalCompletableFutureFunction r
5090	+	= new FailingExceptionalCompletableFutureFunction(ExecutionMode.EXECUTOR);
5091	+	final DelegatedCompletionStage<Integer> d =
5092	+	new DelegatedCompletionStage<Integer>(f);
5093	+	if (!createIncomplete) f.completeExceptionally(ex);
5094	+	final CompletionStage<Integer> g = d.exceptionallyComposeAsync(r, new ThreadExecutor());
5095	+	if (createIncomplete) f.completeExceptionally(ex);
5096	+
5097	+	checkCompletedExceptionally(f, ex);
5098	+	checkCompletedWithWrappedException(g.toCompletableFuture(), r.ex);
5099	+	r.assertInvoked();
5100	+	}}
5101	+
5102		}

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