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

Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.29 by jsr166, Mon Jul 15 03:50:08 2013 UTC vs.
Revision 1.186 by jsr166, Mon Jul 3 20:55:45 2017 UTC

#	Line 5 | Line 5
5		* http://creativecommons.org/publicdomain/zero/1.0/
6		*/
7
8	<	import junit.framework.*;
8	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
9	>	import static java.util.concurrent.TimeUnit.SECONDS;
10	>	import static java.util.concurrent.CompletableFuture.completedFuture;
11	>	import static java.util.concurrent.CompletableFuture.failedFuture;
12	>
13	>	import java.lang.reflect.Method;
14	>	import java.lang.reflect.Modifier;
15	>
16	>	import java.util.stream.Collectors;
17	>	import java.util.stream.Stream;
18	>
19	>	import java.util.ArrayList;
20	>	import java.util.Arrays;
21	>	import java.util.List;
22	>	import java.util.Objects;
23	>	import java.util.Set;
24		import java.util.concurrent.Callable;
10	–	import java.util.concurrent.Executor;
11	–	import java.util.concurrent.ExecutorService;
12	–	import java.util.concurrent.Executors;
25		import java.util.concurrent.CancellationException;
14	–	import java.util.concurrent.CountDownLatch;
15	–	import java.util.concurrent.ExecutionException;
16	–	import java.util.concurrent.Future;
26		import java.util.concurrent.CompletableFuture;
27		import java.util.concurrent.CompletionException;
28	+	import java.util.concurrent.CompletionStage;
29	+	import java.util.concurrent.ExecutionException;
30	+	import java.util.concurrent.Executor;
31	+	import java.util.concurrent.ForkJoinPool;
32	+	import java.util.concurrent.ForkJoinTask;
33	+	import java.util.concurrent.RejectedExecutionException;
34		import java.util.concurrent.TimeoutException;
35		import java.util.concurrent.atomic.AtomicInteger;
36	<	import static java.util.concurrent.TimeUnit.MILLISECONDS;
22	<	import static java.util.concurrent.TimeUnit.SECONDS;
23	<	import java.util.*;
24	<	import java.util.function.Supplier;
25	<	import java.util.function.Consumer;
36	>	import java.util.concurrent.atomic.AtomicReference;
37		import java.util.function.BiConsumer;
27	–	import java.util.function.Function;
38		import java.util.function.BiFunction;
39	+	import java.util.function.Consumer;
40	+	import java.util.function.Function;
41	+	import java.util.function.Predicate;
42	+	import java.util.function.Supplier;
43	+
44	+	import junit.framework.AssertionFailedError;
45	+	import junit.framework.Test;
46	+	import junit.framework.TestSuite;
47
48		public class CompletableFutureTest extends JSR166TestCase {
49
50		public static void main(String[] args) {
51	<	junit.textui.TestRunner.run(suite());
51	>	main(suite(), args);
52		}
53		public static Test suite() {
54		return new TestSuite(CompletableFutureTest.class);
#	Line 41 | Line 59 | public class CompletableFutureTest exten
59		void checkIncomplete(CompletableFuture<?> f) {
60		assertFalse(f.isDone());
61		assertFalse(f.isCancelled());
62	<	assertTrue(f.toString().contains("[Not completed]"));
62	>	assertTrue(f.toString().contains("Not completed"));
63		try {
64		assertNull(f.getNow(null));
65		} catch (Throwable fail) { threadUnexpectedException(fail); }
66		try {
67	<	f.get(0L, SECONDS);
67	>	f.get(randomExpiredTimeout(), randomTimeUnit());
68		shouldThrow();
69		}
70		catch (TimeoutException success) {}
#	Line 54 | Line 72 | public class CompletableFutureTest exten
72		}
73
74		<T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
75	<	try {
76	<	assertEquals(value, f.get(LONG_DELAY_MS, MILLISECONDS));
59	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
75	>	checkTimedGet(f, value);
76	>
77		try {
78		assertEquals(value, f.join());
62	–	} catch (Throwable fail) { threadUnexpectedException(fail); }
63	–	try {
79		assertEquals(value, f.getNow(null));
65	–	} catch (Throwable fail) { threadUnexpectedException(fail); }
66	–	try {
80		assertEquals(value, f.get());
81		} catch (Throwable fail) { threadUnexpectedException(fail); }
82		assertTrue(f.isDone());
#	Line 72 | Line 85 | public class CompletableFutureTest exten
85		assertTrue(f.toString().contains("[Completed normally]"));
86		}
87
88	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
88	>	/**
89	>	* Returns the "raw" internal exceptional completion of f,
90	>	* without any additional wrapping with CompletionException.
91	>	*/
92	>	Throwable exceptionalCompletion(CompletableFuture<?> f) {
93	>	// handle (and whenComplete and exceptionally) can distinguish
94	>	// between "direct" and "wrapped" exceptional completion
95	>	return f.handle((u, t) -> t).join();
96	>	}
97	>
98	>	void checkCompletedExceptionally(CompletableFuture<?> f,
99	>	boolean wrapped,
100	>	Consumer<Throwable> checker) {
101	>	Throwable cause = exceptionalCompletion(f);
102	>	if (wrapped) {
103	>	assertTrue(cause instanceof CompletionException);
104	>	cause = cause.getCause();
105	>	}
106	>	checker.accept(cause);
107	>
108	>	long startTime = System.nanoTime();
109		try {
110		f.get(LONG_DELAY_MS, MILLISECONDS);
111		shouldThrow();
112		} catch (ExecutionException success) {
113	<	assertTrue(success.getCause() instanceof CFException);
113	>	assertSame(cause, success.getCause());
114		} catch (Throwable fail) { threadUnexpectedException(fail); }
115	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
116	+
117		try {
118		f.join();
119		shouldThrow();
120		} catch (CompletionException success) {
121	<	assertTrue(success.getCause() instanceof CFException);
122	<	}
121	>	assertSame(cause, success.getCause());
122	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
123	>
124		try {
125		f.getNow(null);
126		shouldThrow();
127		} catch (CompletionException success) {
128	<	assertTrue(success.getCause() instanceof CFException);
129	<	}
128	>	assertSame(cause, success.getCause());
129	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
130	>
131		try {
132		f.get();
133		shouldThrow();
134		} catch (ExecutionException success) {
135	<	assertTrue(success.getCause() instanceof CFException);
135	>	assertSame(cause, success.getCause());
136		} catch (Throwable fail) { threadUnexpectedException(fail); }
137	<	assertTrue(f.isDone());
137	>
138		assertFalse(f.isCancelled());
139	+	assertTrue(f.isDone());
140	+	assertTrue(f.isCompletedExceptionally());
141		assertTrue(f.toString().contains("[Completed exceptionally]"));
142		}
143
144	+	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
145	+	checkCompletedExceptionally(f, true,
146	+	t -> assertTrue(t instanceof CFException));
147	+	}
148	+
149	+	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
150	+	checkCompletedExceptionally(f, true,
151	+	t -> assertTrue(t instanceof CancellationException));
152	+	}
153	+
154	+	void checkCompletedWithTimeoutException(CompletableFuture<?> f) {
155	+	checkCompletedExceptionally(f, false,
156	+	t -> assertTrue(t instanceof TimeoutException));
157	+	}
158	+
159	+	void checkCompletedWithWrappedException(CompletableFuture<?> f,
160	+	Throwable ex) {
161	+	checkCompletedExceptionally(f, true, t -> assertSame(t, ex));
162	+	}
163	+
164	+	void checkCompletedExceptionally(CompletableFuture<?> f, Throwable ex) {
165	+	checkCompletedExceptionally(f, false, t -> assertSame(t, ex));
166	+	}
167	+
168		void checkCancelled(CompletableFuture<?> f) {
169	+	long startTime = System.nanoTime();
170		try {
171		f.get(LONG_DELAY_MS, MILLISECONDS);
172		shouldThrow();
173		} catch (CancellationException success) {
174		} catch (Throwable fail) { threadUnexpectedException(fail); }
175	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
176	+
177		try {
178		f.join();
179		shouldThrow();
#	Line 121 | Line 187 | public class CompletableFutureTest exten
187		shouldThrow();
188		} catch (CancellationException success) {
189		} catch (Throwable fail) { threadUnexpectedException(fail); }
124	–	assertTrue(f.isDone());
125	–	assertTrue(f.isCompletedExceptionally());
126	–	assertTrue(f.isCancelled());
127	–	assertTrue(f.toString().contains("[Completed exceptionally]"));
128	–	}
190
191	<	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
192	<	try {
132	<	f.get(LONG_DELAY_MS, MILLISECONDS);
133	<	shouldThrow();
134	<	} catch (ExecutionException success) {
135	<	assertTrue(success.getCause() instanceof CancellationException);
136	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
137	<	try {
138	<	f.join();
139	<	shouldThrow();
140	<	} catch (CompletionException success) {
141	<	assertTrue(success.getCause() instanceof CancellationException);
142	<	}
143	<	try {
144	<	f.getNow(null);
145	<	shouldThrow();
146	<	} catch (CompletionException success) {
147	<	assertTrue(success.getCause() instanceof CancellationException);
148	<	}
149	<	try {
150	<	f.get();
151	<	shouldThrow();
152	<	} catch (ExecutionException success) {
153	<	assertTrue(success.getCause() instanceof CancellationException);
154	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
191	>	assertTrue(exceptionalCompletion(f) instanceof CancellationException);
192	>
193		assertTrue(f.isDone());
156	–	assertFalse(f.isCancelled());
194		assertTrue(f.isCompletedExceptionally());
195	+	assertTrue(f.isCancelled());
196		assertTrue(f.toString().contains("[Completed exceptionally]"));
197		}
198
#	Line 172 | Line 210 | public class CompletableFutureTest exten
210		* isCancelled, join, get, and getNow
211		*/
212		public void testComplete() {
213	+	for (Integer v1 : new Integer[] { 1, null })
214	+	{
215		CompletableFuture<Integer> f = new CompletableFuture<>();
216		checkIncomplete(f);
217	<	f.complete(one);
218	<	checkCompletedNormally(f, one);
219	<	}
217	>	assertTrue(f.complete(v1));
218	>	assertFalse(f.complete(v1));
219	>	checkCompletedNormally(f, v1);
220	>	}}
221
222		/**
223		* completeExceptionally completes exceptionally, as indicated by
#	Line 184 | Line 225 | public class CompletableFutureTest exten
225		*/
226		public void testCompleteExceptionally() {
227		CompletableFuture<Integer> f = new CompletableFuture<>();
228	+	CFException ex = new CFException();
229		checkIncomplete(f);
230	<	f.completeExceptionally(new CFException());
231	<	checkCompletedWithWrappedCFException(f);
230	>	f.completeExceptionally(ex);
231	>	checkCompletedExceptionally(f, ex);
232		}
233
234		/**
#	Line 194 | Line 236 | public class CompletableFutureTest exten
236		* methods isDone, isCancelled, join, get, and getNow
237		*/
238		public void testCancel() {
239	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
240	+	{
241		CompletableFuture<Integer> f = new CompletableFuture<>();
242		checkIncomplete(f);
243	<	assertTrue(f.cancel(true));
243	>	assertTrue(f.cancel(mayInterruptIfRunning));
244	>	assertTrue(f.cancel(mayInterruptIfRunning));
245	>	assertTrue(f.cancel(!mayInterruptIfRunning));
246		checkCancelled(f);
247	<	}
247	>	}}
248
249		/**
250		* obtrudeValue forces completion with given value
#	Line 206 | Line 252 | public class CompletableFutureTest exten
252		public void testObtrudeValue() {
253		CompletableFuture<Integer> f = new CompletableFuture<>();
254		checkIncomplete(f);
255	<	f.complete(one);
255	>	assertTrue(f.complete(one));
256		checkCompletedNormally(f, one);
257		f.obtrudeValue(three);
258		checkCompletedNormally(f, three);
#	Line 215 | Line 261 | public class CompletableFutureTest exten
261		f = new CompletableFuture<>();
262		f.obtrudeValue(three);
263		checkCompletedNormally(f, three);
264	+	f.obtrudeValue(null);
265	+	checkCompletedNormally(f, null);
266		f = new CompletableFuture<>();
267		f.completeExceptionally(new CFException());
268		f.obtrudeValue(four);
#	Line 225 | Line 273 | public class CompletableFutureTest exten
273		* obtrudeException forces completion with given exception
274		*/
275		public void testObtrudeException() {
276	<	CompletableFuture<Integer> f = new CompletableFuture<>();
277	<	checkIncomplete(f);
278	<	f.complete(one);
279	<	checkCompletedNormally(f, one);
280	<	f.obtrudeException(new CFException());
233	<	checkCompletedWithWrappedCFException(f);
276	>	for (Integer v1 : new Integer[] { 1, null })
277	>	{
278	>	CFException ex;
279	>	CompletableFuture<Integer> f;
280	>
281		f = new CompletableFuture<>();
282	<	f.obtrudeException(new CFException());
283	<	checkCompletedWithWrappedCFException(f);
282	>	assertTrue(f.complete(v1));
283	>	for (int i = 0; i < 2; i++) {
284	>	f.obtrudeException(ex = new CFException());
285	>	checkCompletedExceptionally(f, ex);
286	>	}
287	>
288		f = new CompletableFuture<>();
289	<	f.completeExceptionally(new CFException());
290	<	f.obtrudeValue(four);
291	<	checkCompletedNormally(f, four);
292	<	f.obtrudeException(new CFException());
293	<	checkCompletedWithWrappedCFException(f);
294	<	}
289	>	for (int i = 0; i < 2; i++) {
290	>	f.obtrudeException(ex = new CFException());
291	>	checkCompletedExceptionally(f, ex);
292	>	}
293	>
294	>	f = new CompletableFuture<>();
295	>	f.completeExceptionally(ex = new CFException());
296	>	f.obtrudeValue(v1);
297	>	checkCompletedNormally(f, v1);
298	>	f.obtrudeException(ex = new CFException());
299	>	checkCompletedExceptionally(f, ex);
300	>	f.completeExceptionally(new CFException());
301	>	checkCompletedExceptionally(f, ex);
302	>	assertFalse(f.complete(v1));
303	>	checkCompletedExceptionally(f, ex);
304	>	}}
305
306		/**
307		* getNumberOfDependents returns number of dependent tasks
308		*/
309		public void testGetNumberOfDependents() {
310	<	CompletableFuture<Integer> f = new CompletableFuture<>();
311	<	assertEquals(f.getNumberOfDependents(), 0);
312	<	CompletableFuture g = f.thenRun(new Noop());
313	<	assertEquals(f.getNumberOfDependents(), 1);
314	<	assertEquals(g.getNumberOfDependents(), 0);
315	<	CompletableFuture h = f.thenRun(new Noop());
316	<	assertEquals(f.getNumberOfDependents(), 2);
317	<	f.complete(1);
310	>	for (ExecutionMode m : ExecutionMode.values())
311	>	for (Integer v1 : new Integer[] { 1, null })
312	>	{
313	>	CompletableFuture<Integer> f = new CompletableFuture<>();
314	>	assertEquals(0, f.getNumberOfDependents());
315	>	final CompletableFuture<Void> g = m.thenRun(f, new Noop(m));
316	>	assertEquals(1, f.getNumberOfDependents());
317	>	assertEquals(0, g.getNumberOfDependents());
318	>	final CompletableFuture<Void> h = m.thenRun(f, new Noop(m));
319	>	assertEquals(2, f.getNumberOfDependents());
320	>	assertEquals(0, h.getNumberOfDependents());
321	>	assertTrue(f.complete(v1));
322		checkCompletedNormally(g, null);
323	<	assertEquals(f.getNumberOfDependents(), 0);
324	<	assertEquals(g.getNumberOfDependents(), 0);
325	<	}
323	>	checkCompletedNormally(h, null);
324	>	assertEquals(0, f.getNumberOfDependents());
325	>	assertEquals(0, g.getNumberOfDependents());
326	>	assertEquals(0, h.getNumberOfDependents());
327	>	}}
328
329		/**
330		* toString indicates current completion state
#	Line 268 | Line 335 | public class CompletableFutureTest exten
335		f = new CompletableFuture<String>();
336		assertTrue(f.toString().contains("[Not completed]"));
337
338	<	f.complete("foo");
338	>	assertTrue(f.complete("foo"));
339		assertTrue(f.toString().contains("[Completed normally]"));
340
341		f = new CompletableFuture<String>();
342	<	f.completeExceptionally(new IndexOutOfBoundsException());
342	>	assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
343		assertTrue(f.toString().contains("[Completed exceptionally]"));
344	+
345	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
346	+	f = new CompletableFuture<String>();
347	+	assertTrue(f.cancel(mayInterruptIfRunning));
348	+	assertTrue(f.toString().contains("[Completed exceptionally]"));
349	+	}
350		}
351
352		/**
#	Line 284 | Line 357 | public class CompletableFutureTest exten
357		checkCompletedNormally(f, "test");
358		}
359
360	<	// Choose non-commutative actions for better coverage
360	>	abstract static class CheckedAction {
361	>	int invocationCount = 0;
362	>	final ExecutionMode m;
363	>	CheckedAction(ExecutionMode m) { this.m = m; }
364	>	void invoked() {
365	>	m.checkExecutionMode();
366	>	assertEquals(0, invocationCount++);
367	>	}
368	>	void assertNotInvoked() { assertEquals(0, invocationCount); }
369	>	void assertInvoked() { assertEquals(1, invocationCount); }
370	>	}
371	>
372	>	abstract static class CheckedIntegerAction extends CheckedAction {
373	>	Integer value;
374	>	CheckedIntegerAction(ExecutionMode m) { super(m); }
375	>	void assertValue(Integer expected) {
376	>	assertInvoked();
377	>	assertEquals(expected, value);
378	>	}
379	>	}
380	>
381	>	static class IntegerSupplier extends CheckedAction
382	>	implements Supplier<Integer>
383	>	{
384	>	final Integer value;
385	>	IntegerSupplier(ExecutionMode m, Integer value) {
386	>	super(m);
387	>	this.value = value;
388	>	}
389	>	public Integer get() {
390	>	invoked();
391	>	return value;
392	>	}
393	>	}
394	>
395	>	// A function that handles and produces null values as well.
396	>	static Integer inc(Integer x) {
397	>	return (x == null) ? null : x + 1;
398	>	}
399
400	<	static final Supplier<Integer> supplyOne =
401	<	() -> Integer.valueOf(1);
402	<	static final Function<Integer, Integer> inc =
403	<	(Integer x) -> Integer.valueOf(x.intValue() + 1);
404	<	static final BiFunction<Integer, Integer, Integer> subtract =
405	<	(Integer x, Integer y) -> Integer.valueOf(x.intValue() - y.intValue());
406	<	static final class IncAction implements Consumer<Integer> {
407	<	int value;
408	<	public void accept(Integer x) { value = x.intValue() + 1; }
400	>	static class NoopConsumer extends CheckedIntegerAction
401	>	implements Consumer<Integer>
402	>	{
403	>	NoopConsumer(ExecutionMode m) { super(m); }
404	>	public void accept(Integer x) {
405	>	invoked();
406	>	value = x;
407	>	}
408	>	}
409	>
410	>	static class IncFunction extends CheckedIntegerAction
411	>	implements Function<Integer,Integer>
412	>	{
413	>	IncFunction(ExecutionMode m) { super(m); }
414	>	public Integer apply(Integer x) {
415	>	invoked();
416	>	return value = inc(x);
417	>	}
418		}
419	<	static final class SubtractAction implements BiConsumer<Integer, Integer> {
420	<	int value;
419	>
420	>	// Choose non-commutative actions for better coverage
421	>	// A non-commutative function that handles and produces null values as well.
422	>	static Integer subtract(Integer x, Integer y) {
423	>	return (x == null && y == null) ? null :
424	>	((x == null) ? 42 : x.intValue())
425	>	- ((y == null) ? 99 : y.intValue());
426	>	}
427	>
428	>	static class SubtractAction extends CheckedIntegerAction
429	>	implements BiConsumer<Integer, Integer>
430	>	{
431	>	SubtractAction(ExecutionMode m) { super(m); }
432		public void accept(Integer x, Integer y) {
433	<	value = x.intValue() - y.intValue();
433	>	invoked();
434	>	value = subtract(x, y);
435		}
436		}
437	<	static final class Noop implements Runnable {
438	<	boolean ran;
439	<	public void run() { ran = true; }
437	>
438	>	static class SubtractFunction extends CheckedIntegerAction
439	>	implements BiFunction<Integer, Integer, Integer>
440	>	{
441	>	SubtractFunction(ExecutionMode m) { super(m); }
442	>	public Integer apply(Integer x, Integer y) {
443	>	invoked();
444	>	return value = subtract(x, y);
445	>	}
446		}
447
448	<	static final class FailingSupplier implements Supplier<Integer> {
449	<	boolean ran;
450	<	public Integer get() { ran = true; throw new CFException(); }
448	>	static class Noop extends CheckedAction implements Runnable {
449	>	Noop(ExecutionMode m) { super(m); }
450	>	public void run() {
451	>	invoked();
452	>	}
453		}
454	<	static final class FailingConsumer implements Consumer<Integer> {
455	<	boolean ran;
456	<	public void accept(Integer x) { ran = true; throw new CFException(); }
454	>
455	>	static class FailingSupplier extends CheckedAction
456	>	implements Supplier<Integer>
457	>	{
458	>	final CFException ex;
459	>	FailingSupplier(ExecutionMode m) { super(m); ex = new CFException(); }
460	>	public Integer get() {
461	>	invoked();
462	>	throw ex;
463	>	}
464		}
465	<	static final class FailingBiConsumer implements BiConsumer<Integer, Integer> {
466	<	boolean ran;
467	<	public void accept(Integer x, Integer y) { ran = true; throw new CFException(); }
465	>
466	>	static class FailingConsumer extends CheckedIntegerAction
467	>	implements Consumer<Integer>
468	>	{
469	>	final CFException ex;
470	>	FailingConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
471	>	public void accept(Integer x) {
472	>	invoked();
473	>	value = x;
474	>	throw ex;
475	>	}
476		}
477	<	static final class FailingFunction implements Function<Integer, Integer> {
478	<	boolean ran;
479	<	public Integer apply(Integer x) { ran = true; throw new CFException(); }
477	>
478	>	static class FailingBiConsumer extends CheckedIntegerAction
479	>	implements BiConsumer<Integer, Integer>
480	>	{
481	>	final CFException ex;
482	>	FailingBiConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
483	>	public void accept(Integer x, Integer y) {
484	>	invoked();
485	>	value = subtract(x, y);
486	>	throw ex;
487	>	}
488		}
489	<	static final class FailingBiFunction implements BiFunction<Integer, Integer, Integer> {
490	<	boolean ran;
491	<	public Integer apply(Integer x, Integer y) { ran = true; throw new CFException(); }
489	>
490	>	static class FailingFunction extends CheckedIntegerAction
491	>	implements Function<Integer, Integer>
492	>	{
493	>	final CFException ex;
494	>	FailingFunction(ExecutionMode m) { super(m); ex = new CFException(); }
495	>	public Integer apply(Integer x) {
496	>	invoked();
497	>	value = x;
498	>	throw ex;
499	>	}
500	>	}
501	>
502	>	static class FailingBiFunction extends CheckedIntegerAction
503	>	implements BiFunction<Integer, Integer, Integer>
504	>	{
505	>	final CFException ex;
506	>	FailingBiFunction(ExecutionMode m) { super(m); ex = new CFException(); }
507	>	public Integer apply(Integer x, Integer y) {
508	>	invoked();
509	>	value = subtract(x, y);
510	>	throw ex;
511	>	}
512		}
513	<	static final class FailingNoop implements Runnable {
514	<	boolean ran;
515	<	public void run() { ran = true; throw new CFException(); }
513	>
514	>	static class FailingRunnable extends CheckedAction implements Runnable {
515	>	final CFException ex;
516	>	FailingRunnable(ExecutionMode m) { super(m); ex = new CFException(); }
517	>	public void run() {
518	>	invoked();
519	>	throw ex;
520	>	}
521		}
522
523	<	static final class CompletableFutureInc
524	<	implements Function<Integer, CompletableFuture<Integer>> {
525	<	boolean ran;
523	>	static class CompletableFutureInc extends CheckedIntegerAction
524	>	implements Function<Integer, CompletableFuture<Integer>>
525	>	{
526	>	CompletableFutureInc(ExecutionMode m) { super(m); }
527		public CompletableFuture<Integer> apply(Integer x) {
528	<	ran = true;
528	>	invoked();
529	>	value = x;
530		CompletableFuture<Integer> f = new CompletableFuture<>();
531	<	f.complete(Integer.valueOf(x.intValue() + 1));
531	>	assertTrue(f.complete(inc(x)));
532		return f;
533		}
534		}
535
536	<	static final class FailingCompletableFutureFunction
537	<	implements Function<Integer, CompletableFuture<Integer>> {
538	<	boolean ran;
536	>	static class FailingCompletableFutureFunction extends CheckedIntegerAction
537	>	implements Function<Integer, CompletableFuture<Integer>>
538	>	{
539	>	final CFException ex;
540	>	FailingCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
541		public CompletableFuture<Integer> apply(Integer x) {
542	<	ran = true; throw new CFException();
542	>	invoked();
543	>	value = x;
544	>	throw ex;
545	>	}
546	>	}
547	>
548	>	static class CountingRejectingExecutor implements Executor {
549	>	final RejectedExecutionException ex = new RejectedExecutionException();
550	>	final AtomicInteger count = new AtomicInteger(0);
551	>	public void execute(Runnable r) {
552	>	count.getAndIncrement();
553	>	throw ex;
554		}
555		}
556
557		// Used for explicit executor tests
558		static final class ThreadExecutor implements Executor {
559	<	AtomicInteger count = new AtomicInteger(0);
559	>	final AtomicInteger count = new AtomicInteger(0);
560	>	static final ThreadGroup tg = new ThreadGroup("ThreadExecutor");
561	>	static boolean startedCurrentThread() {
562	>	return Thread.currentThread().getThreadGroup() == tg;
563	>	}
564
565		public void execute(Runnable r) {
566		count.getAndIncrement();
567	<	new Thread(r).start();
567	>	new Thread(tg, r).start();
568		}
569		}
570
571	<	static final class ExceptionToInteger implements Function<Throwable, Integer> {
572	<	public Integer apply(Throwable x) { return Integer.valueOf(3); }
366	<	}
571	>	static final boolean defaultExecutorIsCommonPool
572	>	= ForkJoinPool.getCommonPoolParallelism() > 1;
573
574	<	static final class IntegerHandler implements BiFunction<Integer, Throwable, Integer> {
575	<	boolean ran;
576	<	public Integer apply(Integer x, Throwable t) {
577	<	ran = true;
578	<	return (t == null) ? two : three;
579	<	}
580	<	}
574	>	/**
575	>	* Permits the testing of parallel code for the 3 different
576	>	* execution modes without copy/pasting all the test methods.
577	>	*/
578	>	enum ExecutionMode {
579	>	SYNC {
580	>	public void checkExecutionMode() {
581	>	assertFalse(ThreadExecutor.startedCurrentThread());
582	>	assertNull(ForkJoinTask.getPool());
583	>	}
584	>	public CompletableFuture<Void> runAsync(Runnable a) {
585	>	throw new UnsupportedOperationException();
586	>	}
587	>	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
588	>	throw new UnsupportedOperationException();
589	>	}
590	>	public <T> CompletableFuture<Void> thenRun
591	>	(CompletableFuture<T> f, Runnable a) {
592	>	return f.thenRun(a);
593	>	}
594	>	public <T> CompletableFuture<Void> thenAccept
595	>	(CompletableFuture<T> f, Consumer<? super T> a) {
596	>	return f.thenAccept(a);
597	>	}
598	>	public <T,U> CompletableFuture<U> thenApply
599	>	(CompletableFuture<T> f, Function<? super T,U> a) {
600	>	return f.thenApply(a);
601	>	}
602	>	public <T,U> CompletableFuture<U> thenCompose
603	>	(CompletableFuture<T> f,
604	>	Function<? super T,? extends CompletionStage<U>> a) {
605	>	return f.thenCompose(a);
606	>	}
607	>	public <T,U> CompletableFuture<U> handle
608	>	(CompletableFuture<T> f,
609	>	BiFunction<? super T,Throwable,? extends U> a) {
610	>	return f.handle(a);
611	>	}
612	>	public <T> CompletableFuture<T> whenComplete
613	>	(CompletableFuture<T> f,
614	>	BiConsumer<? super T,? super Throwable> a) {
615	>	return f.whenComplete(a);
616	>	}
617	>	public <T,U> CompletableFuture<Void> runAfterBoth
618	>	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
619	>	return f.runAfterBoth(g, a);
620	>	}
621	>	public <T,U> CompletableFuture<Void> thenAcceptBoth
622	>	(CompletableFuture<T> f,
623	>	CompletionStage<? extends U> g,
624	>	BiConsumer<? super T,? super U> a) {
625	>	return f.thenAcceptBoth(g, a);
626	>	}
627	>	public <T,U,V> CompletableFuture<V> thenCombine
628	>	(CompletableFuture<T> f,
629	>	CompletionStage<? extends U> g,
630	>	BiFunction<? super T,? super U,? extends V> a) {
631	>	return f.thenCombine(g, a);
632	>	}
633	>	public <T> CompletableFuture<Void> runAfterEither
634	>	(CompletableFuture<T> f,
635	>	CompletionStage<?> g,
636	>	java.lang.Runnable a) {
637	>	return f.runAfterEither(g, a);
638	>	}
639	>	public <T> CompletableFuture<Void> acceptEither
640	>	(CompletableFuture<T> f,
641	>	CompletionStage<? extends T> g,
642	>	Consumer<? super T> a) {
643	>	return f.acceptEither(g, a);
644	>	}
645	>	public <T,U> CompletableFuture<U> applyToEither
646	>	(CompletableFuture<T> f,
647	>	CompletionStage<? extends T> g,
648	>	Function<? super T,U> a) {
649	>	return f.applyToEither(g, a);
650	>	}
651	>	},
652	>
653	>	ASYNC {
654	>	public void checkExecutionMode() {
655	>	assertEquals(defaultExecutorIsCommonPool,
656	>	(ForkJoinPool.commonPool() == ForkJoinTask.getPool()));
657	>	}
658	>	public CompletableFuture<Void> runAsync(Runnable a) {
659	>	return CompletableFuture.runAsync(a);
660	>	}
661	>	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
662	>	return CompletableFuture.supplyAsync(a);
663	>	}
664	>	public <T> CompletableFuture<Void> thenRun
665	>	(CompletableFuture<T> f, Runnable a) {
666	>	return f.thenRunAsync(a);
667	>	}
668	>	public <T> CompletableFuture<Void> thenAccept
669	>	(CompletableFuture<T> f, Consumer<? super T> a) {
670	>	return f.thenAcceptAsync(a);
671	>	}
672	>	public <T,U> CompletableFuture<U> thenApply
673	>	(CompletableFuture<T> f, Function<? super T,U> a) {
674	>	return f.thenApplyAsync(a);
675	>	}
676	>	public <T,U> CompletableFuture<U> thenCompose
677	>	(CompletableFuture<T> f,
678	>	Function<? super T,? extends CompletionStage<U>> a) {
679	>	return f.thenComposeAsync(a);
680	>	}
681	>	public <T,U> CompletableFuture<U> handle
682	>	(CompletableFuture<T> f,
683	>	BiFunction<? super T,Throwable,? extends U> a) {
684	>	return f.handleAsync(a);
685	>	}
686	>	public <T> CompletableFuture<T> whenComplete
687	>	(CompletableFuture<T> f,
688	>	BiConsumer<? super T,? super Throwable> a) {
689	>	return f.whenCompleteAsync(a);
690	>	}
691	>	public <T,U> CompletableFuture<Void> runAfterBoth
692	>	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
693	>	return f.runAfterBothAsync(g, a);
694	>	}
695	>	public <T,U> CompletableFuture<Void> thenAcceptBoth
696	>	(CompletableFuture<T> f,
697	>	CompletionStage<? extends U> g,
698	>	BiConsumer<? super T,? super U> a) {
699	>	return f.thenAcceptBothAsync(g, a);
700	>	}
701	>	public <T,U,V> CompletableFuture<V> thenCombine
702	>	(CompletableFuture<T> f,
703	>	CompletionStage<? extends U> g,
704	>	BiFunction<? super T,? super U,? extends V> a) {
705	>	return f.thenCombineAsync(g, a);
706	>	}
707	>	public <T> CompletableFuture<Void> runAfterEither
708	>	(CompletableFuture<T> f,
709	>	CompletionStage<?> g,
710	>	java.lang.Runnable a) {
711	>	return f.runAfterEitherAsync(g, a);
712	>	}
713	>	public <T> CompletableFuture<Void> acceptEither
714	>	(CompletableFuture<T> f,
715	>	CompletionStage<? extends T> g,
716	>	Consumer<? super T> a) {
717	>	return f.acceptEitherAsync(g, a);
718	>	}
719	>	public <T,U> CompletableFuture<U> applyToEither
720	>	(CompletableFuture<T> f,
721	>	CompletionStage<? extends T> g,
722	>	Function<? super T,U> a) {
723	>	return f.applyToEitherAsync(g, a);
724	>	}
725	>	},
726	>
727	>	EXECUTOR {
728	>	public void checkExecutionMode() {
729	>	assertTrue(ThreadExecutor.startedCurrentThread());
730	>	}
731	>	public CompletableFuture<Void> runAsync(Runnable a) {
732	>	return CompletableFuture.runAsync(a, new ThreadExecutor());
733	>	}
734	>	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
735	>	return CompletableFuture.supplyAsync(a, new ThreadExecutor());
736	>	}
737	>	public <T> CompletableFuture<Void> thenRun
738	>	(CompletableFuture<T> f, Runnable a) {
739	>	return f.thenRunAsync(a, new ThreadExecutor());
740	>	}
741	>	public <T> CompletableFuture<Void> thenAccept
742	>	(CompletableFuture<T> f, Consumer<? super T> a) {
743	>	return f.thenAcceptAsync(a, new ThreadExecutor());
744	>	}
745	>	public <T,U> CompletableFuture<U> thenApply
746	>	(CompletableFuture<T> f, Function<? super T,U> a) {
747	>	return f.thenApplyAsync(a, new ThreadExecutor());
748	>	}
749	>	public <T,U> CompletableFuture<U> thenCompose
750	>	(CompletableFuture<T> f,
751	>	Function<? super T,? extends CompletionStage<U>> a) {
752	>	return f.thenComposeAsync(a, new ThreadExecutor());
753	>	}
754	>	public <T,U> CompletableFuture<U> handle
755	>	(CompletableFuture<T> f,
756	>	BiFunction<? super T,Throwable,? extends U> a) {
757	>	return f.handleAsync(a, new ThreadExecutor());
758	>	}
759	>	public <T> CompletableFuture<T> whenComplete
760	>	(CompletableFuture<T> f,
761	>	BiConsumer<? super T,? super Throwable> a) {
762	>	return f.whenCompleteAsync(a, new ThreadExecutor());
763	>	}
764	>	public <T,U> CompletableFuture<Void> runAfterBoth
765	>	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
766	>	return f.runAfterBothAsync(g, a, new ThreadExecutor());
767	>	}
768	>	public <T,U> CompletableFuture<Void> thenAcceptBoth
769	>	(CompletableFuture<T> f,
770	>	CompletionStage<? extends U> g,
771	>	BiConsumer<? super T,? super U> a) {
772	>	return f.thenAcceptBothAsync(g, a, new ThreadExecutor());
773	>	}
774	>	public <T,U,V> CompletableFuture<V> thenCombine
775	>	(CompletableFuture<T> f,
776	>	CompletionStage<? extends U> g,
777	>	BiFunction<? super T,? super U,? extends V> a) {
778	>	return f.thenCombineAsync(g, a, new ThreadExecutor());
779	>	}
780	>	public <T> CompletableFuture<Void> runAfterEither
781	>	(CompletableFuture<T> f,
782	>	CompletionStage<?> g,
783	>	java.lang.Runnable a) {
784	>	return f.runAfterEitherAsync(g, a, new ThreadExecutor());
785	>	}
786	>	public <T> CompletableFuture<Void> acceptEither
787	>	(CompletableFuture<T> f,
788	>	CompletionStage<? extends T> g,
789	>	Consumer<? super T> a) {
790	>	return f.acceptEitherAsync(g, a, new ThreadExecutor());
791	>	}
792	>	public <T,U> CompletableFuture<U> applyToEither
793	>	(CompletableFuture<T> f,
794	>	CompletionStage<? extends T> g,
795	>	Function<? super T,U> a) {
796	>	return f.applyToEitherAsync(g, a, new ThreadExecutor());
797	>	}
798	>	};
799	>
800	>	public abstract void checkExecutionMode();
801	>	public abstract CompletableFuture<Void> runAsync(Runnable a);
802	>	public abstract <U> CompletableFuture<U> supplyAsync(Supplier<U> a);
803	>	public abstract <T> CompletableFuture<Void> thenRun
804	>	(CompletableFuture<T> f, Runnable a);
805	>	public abstract <T> CompletableFuture<Void> thenAccept
806	>	(CompletableFuture<T> f, Consumer<? super T> a);
807	>	public abstract <T,U> CompletableFuture<U> thenApply
808	>	(CompletableFuture<T> f, Function<? super T,U> a);
809	>	public abstract <T,U> CompletableFuture<U> thenCompose
810	>	(CompletableFuture<T> f,
811	>	Function<? super T,? extends CompletionStage<U>> a);
812	>	public abstract <T,U> CompletableFuture<U> handle
813	>	(CompletableFuture<T> f,
814	>	BiFunction<? super T,Throwable,? extends U> a);
815	>	public abstract <T> CompletableFuture<T> whenComplete
816	>	(CompletableFuture<T> f,
817	>	BiConsumer<? super T,? super Throwable> a);
818	>	public abstract <T,U> CompletableFuture<Void> runAfterBoth
819	>	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a);
820	>	public abstract <T,U> CompletableFuture<Void> thenAcceptBoth
821	>	(CompletableFuture<T> f,
822	>	CompletionStage<? extends U> g,
823	>	BiConsumer<? super T,? super U> a);
824	>	public abstract <T,U,V> CompletableFuture<V> thenCombine
825	>	(CompletableFuture<T> f,
826	>	CompletionStage<? extends U> g,
827	>	BiFunction<? super T,? super U,? extends V> a);
828	>	public abstract <T> CompletableFuture<Void> runAfterEither
829	>	(CompletableFuture<T> f,
830	>	CompletionStage<?> g,
831	>	java.lang.Runnable a);
832	>	public abstract <T> CompletableFuture<Void> acceptEither
833	>	(CompletableFuture<T> f,
834	>	CompletionStage<? extends T> g,
835	>	Consumer<? super T> a);
836	>	public abstract <T,U> CompletableFuture<U> applyToEither
837	>	(CompletableFuture<T> f,
838	>	CompletionStage<? extends T> g,
839	>	Function<? super T,U> a);
840	>	}
841	>
842	>	/**
843	>	* exceptionally action is not invoked when source completes
844	>	* normally, and source result is propagated
845	>	*/
846	>	public void testExceptionally_normalCompletion() {
847	>	for (boolean createIncomplete : new boolean[] { true, false })
848	>	for (Integer v1 : new Integer[] { 1, null })
849	>	{
850	>	final AtomicInteger a = new AtomicInteger(0);
851	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
852	>	if (!createIncomplete) assertTrue(f.complete(v1));
853	>	final CompletableFuture<Integer> g = f.exceptionally
854	>	((Throwable t) -> {
855	>	a.getAndIncrement();
856	>	threadFail("should not be called");
857	>	return null;            // unreached
858	>	});
859	>	if (createIncomplete) assertTrue(f.complete(v1));
860	>
861	>	checkCompletedNormally(g, v1);
862	>	checkCompletedNormally(f, v1);
863	>	assertEquals(0, a.get());
864	>	}}
865
866		/**
867		* exceptionally action completes with function value on source
868	<	* exception;  otherwise with source value
868	>	* exception
869		*/
870	<	public void testExceptionally() {
871	<	CompletableFuture<Integer> f = new CompletableFuture<>();
872	<	ExceptionToInteger r = new ExceptionToInteger();
873	<	CompletableFuture<Integer> g = f.exceptionally(r);
874	<	f.completeExceptionally(new CFException());
875	<	checkCompletedNormally(g, three);
870	>	public void testExceptionally_exceptionalCompletion() {
871	>	for (boolean createIncomplete : new boolean[] { true, false })
872	>	for (Integer v1 : new Integer[] { 1, null })
873	>	{
874	>	final AtomicInteger a = new AtomicInteger(0);
875	>	final CFException ex = new CFException();
876	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
877	>	if (!createIncomplete) f.completeExceptionally(ex);
878	>	final CompletableFuture<Integer> g = f.exceptionally
879	>	((Throwable t) -> {
880	>	ExecutionMode.SYNC.checkExecutionMode();
881	>	threadAssertSame(t, ex);
882	>	a.getAndIncrement();
883	>	return v1;
884	>	});
885	>	if (createIncomplete) f.completeExceptionally(ex);
886	>
887	>	checkCompletedNormally(g, v1);
888	>	assertEquals(1, a.get());
889	>	}}
890	>
891	>	/**
892	>	* If an "exceptionally action" throws an exception, it completes
893	>	* exceptionally with that exception
894	>	*/
895	>	public void testExceptionally_exceptionalCompletionActionFailed() {
896	>	for (boolean createIncomplete : new boolean[] { true, false })
897	>	{
898	>	final AtomicInteger a = new AtomicInteger(0);
899	>	final CFException ex1 = new CFException();
900	>	final CFException ex2 = new CFException();
901	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
902	>	if (!createIncomplete) f.completeExceptionally(ex1);
903	>	final CompletableFuture<Integer> g = f.exceptionally
904	>	((Throwable t) -> {
905	>	ExecutionMode.SYNC.checkExecutionMode();
906	>	threadAssertSame(t, ex1);
907	>	a.getAndIncrement();
908	>	throw ex2;
909	>	});
910	>	if (createIncomplete) f.completeExceptionally(ex1);
911	>
912	>	checkCompletedWithWrappedException(g, ex2);
913	>	checkCompletedExceptionally(f, ex1);
914	>	assertEquals(1, a.get());
915	>	}}
916
917	<	f = new CompletableFuture<>();
918	<	r = new ExceptionToInteger();
919	<	g = f.exceptionally(r);
920	<	f.complete(one);
921	<	checkCompletedNormally(g, one);
922	<	}
917	>	/**
918	>	* whenComplete action executes on normal completion, propagating
919	>	* source result.
920	>	*/
921	>	public void testWhenComplete_normalCompletion() {
922	>	for (ExecutionMode m : ExecutionMode.values())
923	>	for (boolean createIncomplete : new boolean[] { true, false })
924	>	for (Integer v1 : new Integer[] { 1, null })
925	>	{
926	>	final AtomicInteger a = new AtomicInteger(0);
927	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
928	>	if (!createIncomplete) assertTrue(f.complete(v1));
929	>	final CompletableFuture<Integer> g = m.whenComplete
930	>	(f,
931	>	(Integer result, Throwable t) -> {
932	>	m.checkExecutionMode();
933	>	threadAssertSame(result, v1);
934	>	threadAssertNull(t);
935	>	a.getAndIncrement();
936	>	});
937	>	if (createIncomplete) assertTrue(f.complete(v1));
938	>
939	>	checkCompletedNormally(g, v1);
940	>	checkCompletedNormally(f, v1);
941	>	assertEquals(1, a.get());
942	>	}}
943
944		/**
945	<	* handle action completes normally with function value on either
946	<	* normal or exceptional completion of source
945	>	* whenComplete action executes on exceptional completion, propagating
946	>	* source result.
947		*/
948	<	public void testHandle() {
949	<	CompletableFuture<Integer> f, g;
950	<	IntegerHandler r;
948	>	public void testWhenComplete_exceptionalCompletion() {
949	>	for (ExecutionMode m : ExecutionMode.values())
950	>	for (boolean createIncomplete : new boolean[] { true, false })
951	>	{
952	>	final AtomicInteger a = new AtomicInteger(0);
953	>	final CFException ex = new CFException();
954	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
955	>	if (!createIncomplete) f.completeExceptionally(ex);
956	>	final CompletableFuture<Integer> g = m.whenComplete
957	>	(f,
958	>	(Integer result, Throwable t) -> {
959	>	m.checkExecutionMode();
960	>	threadAssertNull(result);
961	>	threadAssertSame(t, ex);
962	>	a.getAndIncrement();
963	>	});
964	>	if (createIncomplete) f.completeExceptionally(ex);
965	>
966	>	checkCompletedWithWrappedException(g, ex);
967	>	checkCompletedExceptionally(f, ex);
968	>	assertEquals(1, a.get());
969	>	}}
970	>
971	>	/**
972	>	* whenComplete action executes on cancelled source, propagating
973	>	* CancellationException.
974	>	*/
975	>	public void testWhenComplete_sourceCancelled() {
976	>	for (ExecutionMode m : ExecutionMode.values())
977	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
978	>	for (boolean createIncomplete : new boolean[] { true, false })
979	>	{
980	>	final AtomicInteger a = new AtomicInteger(0);
981	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
982	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
983	>	final CompletableFuture<Integer> g = m.whenComplete
984	>	(f,
985	>	(Integer result, Throwable t) -> {
986	>	m.checkExecutionMode();
987	>	threadAssertNull(result);
988	>	threadAssertTrue(t instanceof CancellationException);
989	>	a.getAndIncrement();
990	>	});
991	>	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
992
993	<	f = new CompletableFuture<>();
994	<	f.completeExceptionally(new CFException());
995	<	g = f.handle(r = new IntegerHandler());
996	<	assertTrue(r.ran);
406	<	checkCompletedNormally(g, three);
993	>	checkCompletedWithWrappedCancellationException(g);
994	>	checkCancelled(f);
995	>	assertEquals(1, a.get());
996	>	}}
997
998	<	f = new CompletableFuture<>();
999	<	g = f.handle(r = new IntegerHandler());
1000	<	assertFalse(r.ran);
1001	<	f.completeExceptionally(new CFException());
1002	<	checkCompletedNormally(g, three);
1003	<	assertTrue(r.ran);
998	>	/**
999	>	* If a whenComplete action throws an exception when triggered by
1000	>	* a normal completion, it completes exceptionally
1001	>	*/
1002	>	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
1003	>	for (boolean createIncomplete : new boolean[] { true, false })
1004	>	for (ExecutionMode m : ExecutionMode.values())
1005	>	for (Integer v1 : new Integer[] { 1, null })
1006	>	{
1007	>	final AtomicInteger a = new AtomicInteger(0);
1008	>	final CFException ex = new CFException();
1009	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1010	>	if (!createIncomplete) assertTrue(f.complete(v1));
1011	>	final CompletableFuture<Integer> g = m.whenComplete
1012	>	(f,
1013	>	(Integer result, Throwable t) -> {
1014	>	m.checkExecutionMode();
1015	>	threadAssertSame(result, v1);
1016	>	threadAssertNull(t);
1017	>	a.getAndIncrement();
1018	>	throw ex;
1019	>	});
1020	>	if (createIncomplete) assertTrue(f.complete(v1));
1021	>
1022	>	checkCompletedWithWrappedException(g, ex);
1023	>	checkCompletedNormally(f, v1);
1024	>	assertEquals(1, a.get());
1025	>	}}
1026
1027	<	f = new CompletableFuture<>();
1028	<	f.complete(one);
1029	<	g = f.handle(r = new IntegerHandler());
1030	<	assertTrue(r.ran);
1031	<	checkCompletedNormally(g, two);
1027	>	/**
1028	>	* If a whenComplete action throws an exception when triggered by
1029	>	* a source completion that also throws an exception, the source
1030	>	* exception takes precedence (unlike handle)
1031	>	*/
1032	>	public void testWhenComplete_sourceFailedActionFailed() {
1033	>	for (boolean createIncomplete : new boolean[] { true, false })
1034	>	for (ExecutionMode m : ExecutionMode.values())
1035	>	{
1036	>	final AtomicInteger a = new AtomicInteger(0);
1037	>	final CFException ex1 = new CFException();
1038	>	final CFException ex2 = new CFException();
1039	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1040	>
1041	>	if (!createIncomplete) f.completeExceptionally(ex1);
1042	>	final CompletableFuture<Integer> g = m.whenComplete
1043	>	(f,
1044	>	(Integer result, Throwable t) -> {
1045	>	m.checkExecutionMode();
1046	>	threadAssertSame(t, ex1);
1047	>	threadAssertNull(result);
1048	>	a.getAndIncrement();
1049	>	throw ex2;
1050	>	});
1051	>	if (createIncomplete) f.completeExceptionally(ex1);
1052	>
1053	>	checkCompletedWithWrappedException(g, ex1);
1054	>	checkCompletedExceptionally(f, ex1);
1055	>	if (testImplementationDetails) {
1056	>	assertEquals(1, ex1.getSuppressed().length);
1057	>	assertSame(ex2, ex1.getSuppressed()[0]);
1058	>	}
1059	>	assertEquals(1, a.get());
1060	>	}}
1061
1062	<	f = new CompletableFuture<>();
1063	<	g = f.handle(r = new IntegerHandler());
1064	<	assertFalse(r.ran);
1065	<	f.complete(one);
1066	<	assertTrue(r.ran);
1067	<	checkCompletedNormally(g, two);
1068	<	}
1062	>	/**
1063	>	* handle action completes normally with function value on normal
1064	>	* completion of source
1065	>	*/
1066	>	public void testHandle_normalCompletion() {
1067	>	for (ExecutionMode m : ExecutionMode.values())
1068	>	for (boolean createIncomplete : new boolean[] { true, false })
1069	>	for (Integer v1 : new Integer[] { 1, null })
1070	>	{
1071	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1072	>	final AtomicInteger a = new AtomicInteger(0);
1073	>	if (!createIncomplete) assertTrue(f.complete(v1));
1074	>	final CompletableFuture<Integer> g = m.handle
1075	>	(f,
1076	>	(Integer result, Throwable t) -> {
1077	>	m.checkExecutionMode();
1078	>	threadAssertSame(result, v1);
1079	>	threadAssertNull(t);
1080	>	a.getAndIncrement();
1081	>	return inc(v1);
1082	>	});
1083	>	if (createIncomplete) assertTrue(f.complete(v1));
1084	>
1085	>	checkCompletedNormally(g, inc(v1));
1086	>	checkCompletedNormally(f, v1);
1087	>	assertEquals(1, a.get());
1088	>	}}
1089
1090		/**
1091	<	* runAsync completes after running Runnable
1091	>	* handle action completes normally with function value on
1092	>	* exceptional completion of source
1093		*/
1094	<	public void testRunAsync() {
1095	<	Noop r = new Noop();
1096	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r);
1097	<	assertNull(f.join());
1098	<	assertTrue(r.ran);
1099	<	checkCompletedNormally(f, null);
1100	<	}
1094	>	public void testHandle_exceptionalCompletion() {
1095	>	for (ExecutionMode m : ExecutionMode.values())
1096	>	for (boolean createIncomplete : new boolean[] { true, false })
1097	>	for (Integer v1 : new Integer[] { 1, null })
1098	>	{
1099	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1100	>	final AtomicInteger a = new AtomicInteger(0);
1101	>	final CFException ex = new CFException();
1102	>	if (!createIncomplete) f.completeExceptionally(ex);
1103	>	final CompletableFuture<Integer> g = m.handle
1104	>	(f,
1105	>	(Integer result, Throwable t) -> {
1106	>	m.checkExecutionMode();
1107	>	threadAssertNull(result);
1108	>	threadAssertSame(t, ex);
1109	>	a.getAndIncrement();
1110	>	return v1;
1111	>	});
1112	>	if (createIncomplete) f.completeExceptionally(ex);
1113	>
1114	>	checkCompletedNormally(g, v1);
1115	>	checkCompletedExceptionally(f, ex);
1116	>	assertEquals(1, a.get());
1117	>	}}
1118	>
1119	>	/**
1120	>	* handle action completes normally with function value on
1121	>	* cancelled source
1122	>	*/
1123	>	public void testHandle_sourceCancelled() {
1124	>	for (ExecutionMode m : ExecutionMode.values())
1125	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1126	>	for (boolean createIncomplete : new boolean[] { true, false })
1127	>	for (Integer v1 : new Integer[] { 1, null })
1128	>	{
1129	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1130	>	final AtomicInteger a = new AtomicInteger(0);
1131	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1132	>	final CompletableFuture<Integer> g = m.handle
1133	>	(f,
1134	>	(Integer result, Throwable t) -> {
1135	>	m.checkExecutionMode();
1136	>	threadAssertNull(result);
1137	>	threadAssertTrue(t instanceof CancellationException);
1138	>	a.getAndIncrement();
1139	>	return v1;
1140	>	});
1141	>	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1142	>
1143	>	checkCompletedNormally(g, v1);
1144	>	checkCancelled(f);
1145	>	assertEquals(1, a.get());
1146	>	}}
1147
1148		/**
1149	<	* runAsync with executor completes after running Runnable
1149	>	* If a "handle action" throws an exception when triggered by
1150	>	* a normal completion, it completes exceptionally
1151		*/
1152	<	public void testRunAsync2() {
1153	<	Noop r = new Noop();
1154	<	ThreadExecutor exec = new ThreadExecutor();
1155	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r, exec);
1152	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1153	>	for (ExecutionMode m : ExecutionMode.values())
1154	>	for (boolean createIncomplete : new boolean[] { true, false })
1155	>	for (Integer v1 : new Integer[] { 1, null })
1156	>	{
1157	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1158	>	final AtomicInteger a = new AtomicInteger(0);
1159	>	final CFException ex = new CFException();
1160	>	if (!createIncomplete) assertTrue(f.complete(v1));
1161	>	final CompletableFuture<Integer> g = m.handle
1162	>	(f,
1163	>	(Integer result, Throwable t) -> {
1164	>	m.checkExecutionMode();
1165	>	threadAssertSame(result, v1);
1166	>	threadAssertNull(t);
1167	>	a.getAndIncrement();
1168	>	throw ex;
1169	>	});
1170	>	if (createIncomplete) assertTrue(f.complete(v1));
1171	>
1172	>	checkCompletedWithWrappedException(g, ex);
1173	>	checkCompletedNormally(f, v1);
1174	>	assertEquals(1, a.get());
1175	>	}}
1176	>
1177	>	/**
1178	>	* If a "handle action" throws an exception when triggered by
1179	>	* a source completion that also throws an exception, the action
1180	>	* exception takes precedence (unlike whenComplete)
1181	>	*/
1182	>	public void testHandle_sourceFailedActionFailed() {
1183	>	for (boolean createIncomplete : new boolean[] { true, false })
1184	>	for (ExecutionMode m : ExecutionMode.values())
1185	>	{
1186	>	final AtomicInteger a = new AtomicInteger(0);
1187	>	final CFException ex1 = new CFException();
1188	>	final CFException ex2 = new CFException();
1189	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1190	>
1191	>	if (!createIncomplete) f.completeExceptionally(ex1);
1192	>	final CompletableFuture<Integer> g = m.handle
1193	>	(f,
1194	>	(Integer result, Throwable t) -> {
1195	>	m.checkExecutionMode();
1196	>	threadAssertNull(result);
1197	>	threadAssertSame(ex1, t);
1198	>	a.getAndIncrement();
1199	>	throw ex2;
1200	>	});
1201	>	if (createIncomplete) f.completeExceptionally(ex1);
1202	>
1203	>	checkCompletedWithWrappedException(g, ex2);
1204	>	checkCompletedExceptionally(f, ex1);
1205	>	assertEquals(1, a.get());
1206	>	}}
1207	>
1208	>	/**
1209	>	* runAsync completes after running Runnable
1210	>	*/
1211	>	public void testRunAsync_normalCompletion() {
1212	>	ExecutionMode[] executionModes = {
1213	>	ExecutionMode.ASYNC,
1214	>	ExecutionMode.EXECUTOR,
1215	>	};
1216	>	for (ExecutionMode m : executionModes)
1217	>	{
1218	>	final Noop r = new Noop(m);
1219	>	final CompletableFuture<Void> f = m.runAsync(r);
1220		assertNull(f.join());
448	–	assertTrue(r.ran);
1221		checkCompletedNormally(f, null);
1222	<	assertEquals(1, exec.count.get());
1223	<	}
1222	>	r.assertInvoked();
1223	>	}}
1224
1225		/**
1226		* failing runAsync completes exceptionally after running Runnable
1227		*/
1228	<	public void testRunAsync3() {
1229	<	FailingNoop r = new FailingNoop();
1230	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r);
1231	<	checkCompletedWithWrappedCFException(f);
1232	<	assertTrue(r.ran);
1233	<	}
1228	>	public void testRunAsync_exceptionalCompletion() {
1229	>	ExecutionMode[] executionModes = {
1230	>	ExecutionMode.ASYNC,
1231	>	ExecutionMode.EXECUTOR,
1232	>	};
1233	>	for (ExecutionMode m : executionModes)
1234	>	{
1235	>	final FailingRunnable r = new FailingRunnable(m);
1236	>	final CompletableFuture<Void> f = m.runAsync(r);
1237	>	checkCompletedWithWrappedException(f, r.ex);
1238	>	r.assertInvoked();
1239	>	}}
1240
1241	<	/**
1242	<	* supplyAsync completes with result of supplier
1243	<	*/
1244	<	public void testSupplyAsync() {
1245	<	CompletableFuture<Integer> f;
1246	<	f = CompletableFuture.supplyAsync(supplyOne);
1247	<	assertEquals(f.join(), one);
1248	<	checkCompletedNormally(f, one);
1241	>	public void testRunAsync_rejectingExecutor() {
1242	>	CountingRejectingExecutor e = new CountingRejectingExecutor();
1243	>	try {
1244	>	CompletableFuture.runAsync(() -> {}, e);
1245	>	shouldThrow();
1246	>	} catch (Throwable t) {
1247	>	assertSame(e.ex, t);
1248	>	}
1249	>
1250	>	assertEquals(1, e.count.get());
1251		}
1252
1253		/**
1254	<	* supplyAsync with executor completes with result of supplier
1254	>	* supplyAsync completes with result of supplier
1255		*/
1256	<	public void testSupplyAsync2() {
1257	<	CompletableFuture<Integer> f;
1258	<	f = CompletableFuture.supplyAsync(supplyOne, new ThreadExecutor());
1259	<	assertEquals(f.join(), one);
1260	<	checkCompletedNormally(f, one);
1261	<	}
1256	>	public void testSupplyAsync_normalCompletion() {
1257	>	ExecutionMode[] executionModes = {
1258	>	ExecutionMode.ASYNC,
1259	>	ExecutionMode.EXECUTOR,
1260	>	};
1261	>	for (ExecutionMode m : executionModes)
1262	>	for (Integer v1 : new Integer[] { 1, null })
1263	>	{
1264	>	final IntegerSupplier r = new IntegerSupplier(m, v1);
1265	>	final CompletableFuture<Integer> f = m.supplyAsync(r);
1266	>	assertSame(v1, f.join());
1267	>	checkCompletedNormally(f, v1);
1268	>	r.assertInvoked();
1269	>	}}
1270
1271		/**
1272		* Failing supplyAsync completes exceptionally
1273		*/
1274	<	public void testSupplyAsync3() {
1275	<	FailingSupplier r = new FailingSupplier();
1276	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(r);
1277	<	checkCompletedWithWrappedCFException(f);
1278	<	assertTrue(r.ran);
1274	>	public void testSupplyAsync_exceptionalCompletion() {
1275	>	ExecutionMode[] executionModes = {
1276	>	ExecutionMode.ASYNC,
1277	>	ExecutionMode.EXECUTOR,
1278	>	};
1279	>	for (ExecutionMode m : executionModes)
1280	>	{
1281	>	FailingSupplier r = new FailingSupplier(m);
1282	>	CompletableFuture<Integer> f = m.supplyAsync(r);
1283	>	checkCompletedWithWrappedException(f, r.ex);
1284	>	r.assertInvoked();
1285	>	}}
1286	>
1287	>	public void testSupplyAsync_rejectingExecutor() {
1288	>	CountingRejectingExecutor e = new CountingRejectingExecutor();
1289	>	try {
1290	>	CompletableFuture.supplyAsync(() -> null, e);
1291	>	shouldThrow();
1292	>	} catch (Throwable t) {
1293	>	assertSame(e.ex, t);
1294	>	}
1295	>
1296	>	assertEquals(1, e.count.get());
1297		}
1298
1299		// seq completion methods
#	Line 495 | Line 1301 | public class CompletableFutureTest exten
1301		/**
1302		* thenRun result completes normally after normal completion of source
1303		*/
1304	<	public void testThenRun() {
1305	<	CompletableFuture<Integer> f;
1306	<	CompletableFuture<Void> g;
1307	<	Noop r;
1308	<
1309	<	f = new CompletableFuture<>();
1310	<	g = f.thenRun(r = new Noop());
1311	<	f.complete(null);
1312	<	checkCompletedNormally(g, null);
1313	<	assertTrue(r.ran);
1314	<
1315	<	f = new CompletableFuture<>();
1316	<	f.complete(null);
1317	<	g = f.thenRun(r = new Noop());
1318	<	checkCompletedNormally(g, null);
1319	<	assertTrue(r.ran);
1320	<	}
1304	>	public void testThenRun_normalCompletion() {
1305	>	for (ExecutionMode m : ExecutionMode.values())
1306	>	for (Integer v1 : new Integer[] { 1, null })
1307	>	{
1308	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1309	>	final Noop[] rs = new Noop[6];
1310	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1311	>
1312	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1313	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1314	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1315	>	checkIncomplete(h0);
1316	>	checkIncomplete(h1);
1317	>	checkIncomplete(h2);
1318	>	assertTrue(f.complete(v1));
1319	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1320	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1321	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1322	>
1323	>	checkCompletedNormally(h0, null);
1324	>	checkCompletedNormally(h1, null);
1325	>	checkCompletedNormally(h2, null);
1326	>	checkCompletedNormally(h3, null);
1327	>	checkCompletedNormally(h4, null);
1328	>	checkCompletedNormally(h5, null);
1329	>	checkCompletedNormally(f, v1);
1330	>	for (Noop r : rs) r.assertInvoked();
1331	>	}}
1332
1333		/**
1334		* thenRun result completes exceptionally after exceptional
1335		* completion of source
1336		*/
1337	<	public void testThenRun2() {
1338	<	CompletableFuture<Integer> f;
1339	<	CompletableFuture<Void> g;
1340	<	Noop r;
1341	<
1342	<	f = new CompletableFuture<>();
1343	<	g = f.thenRun(r = new Noop());
1344	<	f.completeExceptionally(new CFException());
1345	<	checkCompletedWithWrappedCFException(g);
1346	<	assertFalse(r.ran);
1347	<
1348	<	f = new CompletableFuture<>();
1349	<	f.completeExceptionally(new CFException());
1350	<	g = f.thenRun(r = new Noop());
1351	<	checkCompletedWithWrappedCFException(g);
1352	<	assertFalse(r.ran);
1353	<	}
1337	>	public void testThenRun_exceptionalCompletion() {
1338	>	for (ExecutionMode m : ExecutionMode.values())
1339	>	{
1340	>	final CFException ex = new CFException();
1341	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1342	>	final Noop[] rs = new Noop[6];
1343	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1344	>
1345	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1346	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1347	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1348	>	checkIncomplete(h0);
1349	>	checkIncomplete(h1);
1350	>	checkIncomplete(h2);
1351	>	assertTrue(f.completeExceptionally(ex));
1352	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1353	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1354	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1355	>
1356	>	checkCompletedWithWrappedException(h0, ex);
1357	>	checkCompletedWithWrappedException(h1, ex);
1358	>	checkCompletedWithWrappedException(h2, ex);
1359	>	checkCompletedWithWrappedException(h3, ex);
1360	>	checkCompletedWithWrappedException(h4, ex);
1361	>	checkCompletedWithWrappedException(h5, ex);
1362	>	checkCompletedExceptionally(f, ex);
1363	>	for (Noop r : rs) r.assertNotInvoked();
1364	>	}}
1365
1366		/**
1367	<	* thenRun result completes exceptionally if action does
1367	>	* thenRun result completes exceptionally if source cancelled
1368		*/
1369	<	public void testThenRun3() {
1370	<	CompletableFuture<Integer> f;
1371	<	CompletableFuture<Void> g;
1372	<	FailingNoop r;
1373	<
1374	<	f = new CompletableFuture<>();
1375	<	g = f.thenRun(r = new FailingNoop());
1376	<	f.complete(null);
1377	<	checkCompletedWithWrappedCFException(g);
1378	<
1379	<	f = new CompletableFuture<>();
1380	<	f.complete(null);
1381	<	g = f.thenRun(r = new FailingNoop());
1382	<	checkCompletedWithWrappedCFException(g);
1383	<	}
1369	>	public void testThenRun_sourceCancelled() {
1370	>	for (ExecutionMode m : ExecutionMode.values())
1371	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1372	>	{
1373	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1374	>	final Noop[] rs = new Noop[6];
1375	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1376	>
1377	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1378	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1379	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1380	>	checkIncomplete(h0);
1381	>	checkIncomplete(h1);
1382	>	checkIncomplete(h2);
1383	>	assertTrue(f.cancel(mayInterruptIfRunning));
1384	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1385	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1386	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1387	>
1388	>	checkCompletedWithWrappedCancellationException(h0);
1389	>	checkCompletedWithWrappedCancellationException(h1);
1390	>	checkCompletedWithWrappedCancellationException(h2);
1391	>	checkCompletedWithWrappedCancellationException(h3);
1392	>	checkCompletedWithWrappedCancellationException(h4);
1393	>	checkCompletedWithWrappedCancellationException(h5);
1394	>	checkCancelled(f);
1395	>	for (Noop r : rs) r.assertNotInvoked();
1396	>	}}
1397
1398		/**
1399	<	* thenRun result completes exceptionally if source cancelled
1399	>	* thenRun result completes exceptionally if action does
1400		*/
1401	<	public void testThenRun4() {
1402	<	CompletableFuture<Integer> f;
1403	<	CompletableFuture<Void> g;
1404	<	Noop r;
1405	<
1406	<	f = new CompletableFuture<>();
1407	<	g = f.thenRun(r = new Noop());
1408	<	assertTrue(f.cancel(true));
1409	<	checkCompletedWithWrappedCancellationException(g);
1410	<
1411	<	f = new CompletableFuture<>();
1412	<	assertTrue(f.cancel(true));
1413	<	g = f.thenRun(r = new Noop());
1414	<	checkCompletedWithWrappedCancellationException(g);
1415	<	}
1401	>	public void testThenRun_actionFailed() {
1402	>	for (ExecutionMode m : ExecutionMode.values())
1403	>	for (Integer v1 : new Integer[] { 1, null })
1404	>	{
1405	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1406	>	final FailingRunnable[] rs = new FailingRunnable[6];
1407	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1408	>
1409	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1410	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1411	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1412	>	assertTrue(f.complete(v1));
1413	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1414	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1415	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1416	>
1417	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1418	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1419	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1420	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1421	>	checkCompletedWithWrappedException(h4, rs[4].ex);
1422	>	checkCompletedWithWrappedException(h5, rs[5].ex);
1423	>	checkCompletedNormally(f, v1);
1424	>	}}
1425
1426		/**
1427		* thenApply result completes normally after normal completion of source
1428		*/
1429	<	public void testThenApply() {
1430	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1431	<	CompletableFuture<Integer> g = f.thenApply(inc);
1432	<	f.complete(one);
1433	<	checkCompletedNormally(g, two);
1434	<	}
1429	>	public void testThenApply_normalCompletion() {
1430	>	for (ExecutionMode m : ExecutionMode.values())
1431	>	for (Integer v1 : new Integer[] { 1, null })
1432	>	{
1433	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1434	>	final IncFunction[] rs = new IncFunction[4];
1435	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1436	>
1437	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1438	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1439	>	checkIncomplete(h0);
1440	>	checkIncomplete(h1);
1441	>	assertTrue(f.complete(v1));
1442	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1443	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1444	>
1445	>	checkCompletedNormally(h0, inc(v1));
1446	>	checkCompletedNormally(h1, inc(v1));
1447	>	checkCompletedNormally(h2, inc(v1));
1448	>	checkCompletedNormally(h3, inc(v1));
1449	>	checkCompletedNormally(f, v1);
1450	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1451	>	}}
1452
1453		/**
1454		* thenApply result completes exceptionally after exceptional
1455		* completion of source
1456		*/
1457	<	public void testThenApply2() {
1458	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1459	<	CompletableFuture<Integer> g = f.thenApply(inc);
1460	<	f.completeExceptionally(new CFException());
1461	<	checkCompletedWithWrappedCFException(g);
1462	<	}
1457	>	public void testThenApply_exceptionalCompletion() {
1458	>	for (ExecutionMode m : ExecutionMode.values())
1459	>	{
1460	>	final CFException ex = new CFException();
1461	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1462	>	final IncFunction[] rs = new IncFunction[4];
1463	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1464	>
1465	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1466	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1467	>	assertTrue(f.completeExceptionally(ex));
1468	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1469	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1470	>
1471	>	checkCompletedWithWrappedException(h0, ex);
1472	>	checkCompletedWithWrappedException(h1, ex);
1473	>	checkCompletedWithWrappedException(h2, ex);
1474	>	checkCompletedWithWrappedException(h3, ex);
1475	>	checkCompletedExceptionally(f, ex);
1476	>	for (IncFunction r : rs) r.assertNotInvoked();
1477	>	}}
1478
1479		/**
1480	<	* thenApply result completes exceptionally if action does
1480	>	* thenApply result completes exceptionally if source cancelled
1481		*/
1482	<	public void testThenApply3() {
1483	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1484	<	CompletableFuture<Integer> g = f.thenApply(new FailingFunction());
1485	<	f.complete(one);
1486	<	checkCompletedWithWrappedCFException(g);
1487	<	}
1482	>	public void testThenApply_sourceCancelled() {
1483	>	for (ExecutionMode m : ExecutionMode.values())
1484	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1485	>	{
1486	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1487	>	final IncFunction[] rs = new IncFunction[4];
1488	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1489	>
1490	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1491	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1492	>	assertTrue(f.cancel(mayInterruptIfRunning));
1493	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1494	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1495	>
1496	>	checkCompletedWithWrappedCancellationException(h0);
1497	>	checkCompletedWithWrappedCancellationException(h1);
1498	>	checkCompletedWithWrappedCancellationException(h2);
1499	>	checkCompletedWithWrappedCancellationException(h3);
1500	>	checkCancelled(f);
1501	>	for (IncFunction r : rs) r.assertNotInvoked();
1502	>	}}
1503
1504		/**
1505	<	* thenApply result completes exceptionally if source cancelled
1505	>	* thenApply result completes exceptionally if action does
1506		*/
1507	<	public void testThenApply4() {
1508	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1509	<	CompletableFuture<Integer> g = f.thenApply(inc);
1510	<	assertTrue(f.cancel(true));
1511	<	checkCompletedWithWrappedCancellationException(g);
1512	<	}
1507	>	public void testThenApply_actionFailed() {
1508	>	for (ExecutionMode m : ExecutionMode.values())
1509	>	for (Integer v1 : new Integer[] { 1, null })
1510	>	{
1511	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1512	>	final FailingFunction[] rs = new FailingFunction[4];
1513	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1514	>
1515	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1516	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1517	>	assertTrue(f.complete(v1));
1518	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1519	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1520	>
1521	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1522	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1523	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1524	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1525	>	checkCompletedNormally(f, v1);
1526	>	}}
1527
1528		/**
1529		* thenAccept result completes normally after normal completion of source
1530		*/
1531	<	public void testThenAccept() {
1532	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1533	<	IncAction r = new IncAction();
1534	<	CompletableFuture<Void> g = f.thenAccept(r);
1535	<	f.complete(one);
1536	<	checkCompletedNormally(g, null);
1537	<	assertEquals(r.value, 2);
1538	<	}
1531	>	public void testThenAccept_normalCompletion() {
1532	>	for (ExecutionMode m : ExecutionMode.values())
1533	>	for (Integer v1 : new Integer[] { 1, null })
1534	>	{
1535	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1536	>	final NoopConsumer[] rs = new NoopConsumer[4];
1537	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1538	>
1539	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1540	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1541	>	checkIncomplete(h0);
1542	>	checkIncomplete(h1);
1543	>	assertTrue(f.complete(v1));
1544	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1545	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1546	>
1547	>	checkCompletedNormally(h0, null);
1548	>	checkCompletedNormally(h1, null);
1549	>	checkCompletedNormally(h2, null);
1550	>	checkCompletedNormally(h3, null);
1551	>	checkCompletedNormally(f, v1);
1552	>	for (NoopConsumer r : rs) r.assertValue(v1);
1553	>	}}
1554
1555		/**
1556		* thenAccept result completes exceptionally after exceptional
1557		* completion of source
1558		*/
1559	<	public void testThenAccept2() {
1560	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1561	<	IncAction r = new IncAction();
1562	<	CompletableFuture<Void> g = f.thenAccept(r);
1563	<	f.completeExceptionally(new CFException());
1564	<	checkCompletedWithWrappedCFException(g);
1565	<	}
1559	>	public void testThenAccept_exceptionalCompletion() {
1560	>	for (ExecutionMode m : ExecutionMode.values())
1561	>	{
1562	>	final CFException ex = new CFException();
1563	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1564	>	final NoopConsumer[] rs = new NoopConsumer[4];
1565	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1566	>
1567	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1568	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1569	>	assertTrue(f.completeExceptionally(ex));
1570	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1571	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1572	>
1573	>	checkCompletedWithWrappedException(h0, ex);
1574	>	checkCompletedWithWrappedException(h1, ex);
1575	>	checkCompletedWithWrappedException(h2, ex);
1576	>	checkCompletedWithWrappedException(h3, ex);
1577	>	checkCompletedExceptionally(f, ex);
1578	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1579	>	}}
1580
1581		/**
1582	<	* thenAccept result completes exceptionally if action does
1582	>	* thenAccept result completes exceptionally if source cancelled
1583		*/
1584	<	public void testThenAccept3() {
1585	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1586	<	FailingConsumer r = new FailingConsumer();
1587	<	CompletableFuture<Void> g = f.thenAccept(r);
1588	<	f.complete(one);
1589	<	checkCompletedWithWrappedCFException(g);
1590	<	assertTrue(r.ran);
1591	<	}
1584	>	public void testThenAccept_sourceCancelled() {
1585	>	for (ExecutionMode m : ExecutionMode.values())
1586	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1587	>	{
1588	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1589	>	final NoopConsumer[] rs = new NoopConsumer[4];
1590	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1591	>
1592	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1593	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1594	>	assertTrue(f.cancel(mayInterruptIfRunning));
1595	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1596	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1597	>
1598	>	checkCompletedWithWrappedCancellationException(h0);
1599	>	checkCompletedWithWrappedCancellationException(h1);
1600	>	checkCompletedWithWrappedCancellationException(h2);
1601	>	checkCompletedWithWrappedCancellationException(h3);
1602	>	checkCancelled(f);
1603	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1604	>	}}
1605
1606		/**
1607	<	* thenAccept result completes exceptionally if source cancelled
1607	>	* thenAccept result completes exceptionally if action does
1608		*/
1609	<	public void testThenAccept4() {
1610	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1611	<	IncAction r = new IncAction();
1612	<	CompletableFuture<Void> g = f.thenAccept(r);
1613	<	assertTrue(f.cancel(true));
1614	<	checkCompletedWithWrappedCancellationException(g);
1615	<	}
1609	>	public void testThenAccept_actionFailed() {
1610	>	for (ExecutionMode m : ExecutionMode.values())
1611	>	for (Integer v1 : new Integer[] { 1, null })
1612	>	{
1613	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1614	>	final FailingConsumer[] rs = new FailingConsumer[4];
1615	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1616	>
1617	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1618	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1619	>	assertTrue(f.complete(v1));
1620	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1621	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1622	>
1623	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1624	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1625	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1626	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1627	>	checkCompletedNormally(f, v1);
1628	>	}}
1629
1630		/**
1631		* thenCombine result completes normally after normal completion
1632		* of sources
1633		*/
1634	<	public void testThenCombine() {
1635	<	CompletableFuture<Integer> f, g, h;
1636	<
1637	<	f = new CompletableFuture<>();
1638	<	g = new CompletableFuture<>();
1639	<	h = f.thenCombine(g, subtract);
1640	<	f.complete(3);
1641	<	checkIncomplete(h);
1642	<	g.complete(1);
1643	<	checkCompletedNormally(h, 2);
1644	<
1645	<	f = new CompletableFuture<>();
1646	<	g = new CompletableFuture<>();
1647	<	h = f.thenCombine(g, subtract);
1648	<	g.complete(1);
1649	<	checkIncomplete(h);
1650	<	f.complete(3);
1651	<	checkCompletedNormally(h, 2);
1652	<
1653	<	f = new CompletableFuture<>();
1654	<	g = new CompletableFuture<>();
1655	<	g.complete(1);
1656	<	f.complete(3);
1657	<	h = f.thenCombine(g, subtract);
1658	<	checkCompletedNormally(h, 2);
1659	<	}
1634	>	public void testThenCombine_normalCompletion() {
1635	>	for (ExecutionMode m : ExecutionMode.values())
1636	>	for (boolean fFirst : new boolean[] { true, false })
1637	>	for (Integer v1 : new Integer[] { 1, null })
1638	>	for (Integer v2 : new Integer[] { 2, null })
1639	>	{
1640	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1641	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1642	>	final SubtractFunction[] rs = new SubtractFunction[6];
1643	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1644	>
1645	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1646	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1647	>	final Integer w1 =  fFirst ? v1 : v2;
1648	>	final Integer w2 = !fFirst ? v1 : v2;
1649	>
1650	>	final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1651	>	final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1652	>	assertTrue(fst.complete(w1));
1653	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1654	>	final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1655	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1656	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1657	>	checkCompletedNormally(h1, subtract(w1, w1));
1658	>	checkCompletedNormally(h3, subtract(w1, w1));
1659	>	rs[1].assertValue(subtract(w1, w1));
1660	>	rs[3].assertValue(subtract(w1, w1));
1661	>	assertTrue(snd.complete(w2));
1662	>	final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1663	>
1664	>	checkCompletedNormally(h0, subtract(v1, v2));
1665	>	checkCompletedNormally(h2, subtract(v1, v2));
1666	>	checkCompletedNormally(h4, subtract(v1, v2));
1667	>	rs[0].assertValue(subtract(v1, v2));
1668	>	rs[2].assertValue(subtract(v1, v2));
1669	>	rs[4].assertValue(subtract(v1, v2));
1670	>
1671	>	checkCompletedNormally(f, v1);
1672	>	checkCompletedNormally(g, v2);
1673	>	}}
1674
1675		/**
1676		* thenCombine result completes exceptionally after exceptional
1677		* completion of either source
1678		*/
1679	<	public void testThenCombine2() {
1680	<	CompletableFuture<Integer> f, g, h;
1681	<
1682	<	f = new CompletableFuture<>();
1683	<	g = new CompletableFuture<>();
1684	<	h = f.thenCombine(g, subtract);
1685	<	f.completeExceptionally(new CFException());
1686	<	checkIncomplete(h);
1687	<	g.complete(1);
1688	<	checkCompletedWithWrappedCFException(h);
1689	<
1690	<	f = new CompletableFuture<>();
1691	<	g = new CompletableFuture<>();
1692	<	h = f.thenCombine(g, subtract);
1693	<	g.completeExceptionally(new CFException());
1694	<	checkIncomplete(h);
1695	<	f.complete(3);
1696	<	checkCompletedWithWrappedCFException(h);
1697	<
1698	<	f = new CompletableFuture<>();
1699	<	g = new CompletableFuture<>();
1700	<	f.complete(3);
1701	<	g.completeExceptionally(new CFException());
1702	<	h = f.thenCombine(g, subtract);
1703	<	checkCompletedWithWrappedCFException(h);
1704	<
1705	<	f = new CompletableFuture<>();
1706	<	g = new CompletableFuture<>();
1707	<	f.completeExceptionally(new CFException());
1708	<	g.complete(3);
1709	<	h = f.thenCombine(g, subtract);
1710	<	checkCompletedWithWrappedCFException(h);
1711	<	}
1679	>	public void testThenCombine_exceptionalCompletion() throws Throwable {
1680	>	for (ExecutionMode m : ExecutionMode.values())
1681	>	for (boolean fFirst : new boolean[] { true, false })
1682	>	for (boolean failFirst : new boolean[] { true, false })
1683	>	for (Integer v1 : new Integer[] { 1, null })
1684	>	{
1685	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1686	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1687	>	final CFException ex = new CFException();
1688	>	final SubtractFunction r1 = new SubtractFunction(m);
1689	>	final SubtractFunction r2 = new SubtractFunction(m);
1690	>	final SubtractFunction r3 = new SubtractFunction(m);
1691	>
1692	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1693	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1694	>	final Callable<Boolean> complete1 = failFirst ?
1695	>	() -> fst.completeExceptionally(ex) :
1696	>	() -> fst.complete(v1);
1697	>	final Callable<Boolean> complete2 = failFirst ?
1698	>	() -> snd.complete(v1) :
1699	>	() -> snd.completeExceptionally(ex);
1700	>
1701	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1702	>	assertTrue(complete1.call());
1703	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1704	>	checkIncomplete(h1);
1705	>	checkIncomplete(h2);
1706	>	assertTrue(complete2.call());
1707	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1708	>
1709	>	checkCompletedWithWrappedException(h1, ex);
1710	>	checkCompletedWithWrappedException(h2, ex);
1711	>	checkCompletedWithWrappedException(h3, ex);
1712	>	r1.assertNotInvoked();
1713	>	r2.assertNotInvoked();
1714	>	r3.assertNotInvoked();
1715	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1716	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1717	>	}}
1718
1719		/**
1720	<	* thenCombine result completes exceptionally if action does
1720	>	* thenCombine result completes exceptionally if either source cancelled
1721		*/
1722	<	public void testThenCombine3() {
1723	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1724	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1725	<	FailingBiFunction r = new FailingBiFunction();
1726	<	CompletableFuture<Integer> g = f.thenCombine(f2, r);
1727	<	f.complete(one);
1728	<	checkIncomplete(g);
1729	<	assertFalse(r.ran);
1730	<	f2.complete(two);
1731	<	checkCompletedWithWrappedCFException(g);
1732	<	assertTrue(r.ran);
1733	<	}
1722	>	public void testThenCombine_sourceCancelled() throws Throwable {
1723	>	for (ExecutionMode m : ExecutionMode.values())
1724	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1725	>	for (boolean fFirst : new boolean[] { true, false })
1726	>	for (boolean failFirst : new boolean[] { true, false })
1727	>	for (Integer v1 : new Integer[] { 1, null })
1728	>	{
1729	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1730	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1731	>	final SubtractFunction r1 = new SubtractFunction(m);
1732	>	final SubtractFunction r2 = new SubtractFunction(m);
1733	>	final SubtractFunction r3 = new SubtractFunction(m);
1734	>
1735	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1736	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1737	>	final Callable<Boolean> complete1 = failFirst ?
1738	>	() -> fst.cancel(mayInterruptIfRunning) :
1739	>	() -> fst.complete(v1);
1740	>	final Callable<Boolean> complete2 = failFirst ?
1741	>	() -> snd.complete(v1) :
1742	>	() -> snd.cancel(mayInterruptIfRunning);
1743	>
1744	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1745	>	assertTrue(complete1.call());
1746	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1747	>	checkIncomplete(h1);
1748	>	checkIncomplete(h2);
1749	>	assertTrue(complete2.call());
1750	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1751	>
1752	>	checkCompletedWithWrappedCancellationException(h1);
1753	>	checkCompletedWithWrappedCancellationException(h2);
1754	>	checkCompletedWithWrappedCancellationException(h3);
1755	>	r1.assertNotInvoked();
1756	>	r2.assertNotInvoked();
1757	>	r3.assertNotInvoked();
1758	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1759	>	checkCancelled(failFirst ? fst : snd);
1760	>	}}
1761
1762		/**
1763	<	* thenCombine result completes exceptionally if either source cancelled
1763	>	* thenCombine result completes exceptionally if action does
1764		*/
1765	<	public void testThenCombine4() {
1766	<	CompletableFuture<Integer> f, g, h;
1767	<
1768	<	f = new CompletableFuture<>();
1769	<	g = new CompletableFuture<>();
1770	<	h = f.thenCombine(g, subtract);
1771	<	assertTrue(f.cancel(true));
1772	<	checkIncomplete(h);
1773	<	g.complete(1);
1774	<	checkCompletedWithWrappedCancellationException(h);
1775	<
1776	<	f = new CompletableFuture<>();
1777	<	g = new CompletableFuture<>();
1778	<	h = f.thenCombine(g, subtract);
1779	<	assertTrue(g.cancel(true));
1780	<	checkIncomplete(h);
1781	<	f.complete(3);
1782	<	checkCompletedWithWrappedCancellationException(h);
1783	<
1784	<	f = new CompletableFuture<>();
1785	<	g = new CompletableFuture<>();
1786	<	assertTrue(f.cancel(true));
1787	<	assertTrue(g.cancel(true));
1788	<	h = f.thenCombine(g, subtract);
1789	<	checkCompletedWithWrappedCancellationException(h);
1790	<	}
1765	>	public void testThenCombine_actionFailed() {
1766	>	for (ExecutionMode m : ExecutionMode.values())
1767	>	for (boolean fFirst : new boolean[] { true, false })
1768	>	for (Integer v1 : new Integer[] { 1, null })
1769	>	for (Integer v2 : new Integer[] { 2, null })
1770	>	{
1771	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1772	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1773	>	final FailingBiFunction r1 = new FailingBiFunction(m);
1774	>	final FailingBiFunction r2 = new FailingBiFunction(m);
1775	>	final FailingBiFunction r3 = new FailingBiFunction(m);
1776	>
1777	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1778	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1779	>	final Integer w1 =  fFirst ? v1 : v2;
1780	>	final Integer w2 = !fFirst ? v1 : v2;
1781	>
1782	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1783	>	assertTrue(fst.complete(w1));
1784	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1785	>	assertTrue(snd.complete(w2));
1786	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1787	>
1788	>	checkCompletedWithWrappedException(h1, r1.ex);
1789	>	checkCompletedWithWrappedException(h2, r2.ex);
1790	>	checkCompletedWithWrappedException(h3, r3.ex);
1791	>	r1.assertInvoked();
1792	>	r2.assertInvoked();
1793	>	r3.assertInvoked();
1794	>	checkCompletedNormally(f, v1);
1795	>	checkCompletedNormally(g, v2);
1796	>	}}
1797
1798		/**
1799		* thenAcceptBoth result completes normally after normal
1800		* completion of sources
1801		*/
1802	<	public void testThenAcceptBoth() {
1803	<	CompletableFuture<Integer> f, g;
1804	<	CompletableFuture<Void> h;
1805	<	SubtractAction r;
1806	<
1807	<	f = new CompletableFuture<>();
1808	<	g = new CompletableFuture<>();
1809	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1810	<	f.complete(3);
1811	<	checkIncomplete(h);
1812	<	g.complete(1);
1813	<	checkCompletedNormally(h, null);
1814	<	assertEquals(r.value, 2);
1815	<
1816	<	f = new CompletableFuture<>();
1817	<	g = new CompletableFuture<>();
1818	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1819	<	g.complete(1);
1820	<	checkIncomplete(h);
1821	<	f.complete(3);
1822	<	checkCompletedNormally(h, null);
1823	<	assertEquals(r.value, 2);
1824	<
1825	<	f = new CompletableFuture<>();
1826	<	g = new CompletableFuture<>();
1827	<	g.complete(1);
1828	<	f.complete(3);
1829	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1830	<	checkCompletedNormally(h, null);
1831	<	assertEquals(r.value, 2);
1832	<	}
1802	>	public void testThenAcceptBoth_normalCompletion() {
1803	>	for (ExecutionMode m : ExecutionMode.values())
1804	>	for (boolean fFirst : new boolean[] { true, false })
1805	>	for (Integer v1 : new Integer[] { 1, null })
1806	>	for (Integer v2 : new Integer[] { 2, null })
1807	>	{
1808	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1809	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1810	>	final SubtractAction r1 = new SubtractAction(m);
1811	>	final SubtractAction r2 = new SubtractAction(m);
1812	>	final SubtractAction r3 = new SubtractAction(m);
1813	>
1814	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1815	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1816	>	final Integer w1 =  fFirst ? v1 : v2;
1817	>	final Integer w2 = !fFirst ? v1 : v2;
1818	>
1819	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1820	>	assertTrue(fst.complete(w1));
1821	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1822	>	checkIncomplete(h1);
1823	>	checkIncomplete(h2);
1824	>	r1.assertNotInvoked();
1825	>	r2.assertNotInvoked();
1826	>	assertTrue(snd.complete(w2));
1827	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1828	>
1829	>	checkCompletedNormally(h1, null);
1830	>	checkCompletedNormally(h2, null);
1831	>	checkCompletedNormally(h3, null);
1832	>	r1.assertValue(subtract(v1, v2));
1833	>	r2.assertValue(subtract(v1, v2));
1834	>	r3.assertValue(subtract(v1, v2));
1835	>	checkCompletedNormally(f, v1);
1836	>	checkCompletedNormally(g, v2);
1837	>	}}
1838
1839		/**
1840		* thenAcceptBoth result completes exceptionally after exceptional
1841		* completion of either source
1842		*/
1843	<	public void testThenAcceptBoth2() {
1844	<	CompletableFuture<Integer> f, g;
1845	<	CompletableFuture<Void> h;
1846	<	SubtractAction r;
1847	<
1848	<	f = new CompletableFuture<>();
1849	<	g = new CompletableFuture<>();
1850	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1851	<	f.completeExceptionally(new CFException());
1852	<	checkIncomplete(h);
1853	<	g.complete(1);
1854	<	checkCompletedWithWrappedCFException(h);
1855	<
1856	<	f = new CompletableFuture<>();
1857	<	g = new CompletableFuture<>();
1858	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1859	<	g.completeExceptionally(new CFException());
1860	<	checkIncomplete(h);
1861	<	f.complete(3);
1862	<	checkCompletedWithWrappedCFException(h);
1863	<
1864	<	f = new CompletableFuture<>();
1865	<	g = new CompletableFuture<>();
1866	<	f.complete(3);
1867	<	g.completeExceptionally(new CFException());
1868	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1869	<	checkCompletedWithWrappedCFException(h);
1870	<
1871	<	f = new CompletableFuture<>();
1872	<	g = new CompletableFuture<>();
1873	<	f.completeExceptionally(new CFException());
1874	<	g.complete(3);
1875	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1876	<	checkCompletedWithWrappedCFException(h);
1877	<	}
1843	>	public void testThenAcceptBoth_exceptionalCompletion() throws Throwable {
1844	>	for (ExecutionMode m : ExecutionMode.values())
1845	>	for (boolean fFirst : new boolean[] { true, false })
1846	>	for (boolean failFirst : new boolean[] { true, false })
1847	>	for (Integer v1 : new Integer[] { 1, null })
1848	>	{
1849	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1850	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1851	>	final CFException ex = new CFException();
1852	>	final SubtractAction r1 = new SubtractAction(m);
1853	>	final SubtractAction r2 = new SubtractAction(m);
1854	>	final SubtractAction r3 = new SubtractAction(m);
1855	>
1856	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1857	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1858	>	final Callable<Boolean> complete1 = failFirst ?
1859	>	() -> fst.completeExceptionally(ex) :
1860	>	() -> fst.complete(v1);
1861	>	final Callable<Boolean> complete2 = failFirst ?
1862	>	() -> snd.complete(v1) :
1863	>	() -> snd.completeExceptionally(ex);
1864	>
1865	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1866	>	assertTrue(complete1.call());
1867	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1868	>	checkIncomplete(h1);
1869	>	checkIncomplete(h2);
1870	>	assertTrue(complete2.call());
1871	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1872	>
1873	>	checkCompletedWithWrappedException(h1, ex);
1874	>	checkCompletedWithWrappedException(h2, ex);
1875	>	checkCompletedWithWrappedException(h3, ex);
1876	>	r1.assertNotInvoked();
1877	>	r2.assertNotInvoked();
1878	>	r3.assertNotInvoked();
1879	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1880	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1881	>	}}
1882
1883		/**
1884	<	* thenAcceptBoth result completes exceptionally if action does
1884	>	* thenAcceptBoth result completes exceptionally if either source cancelled
1885		*/
1886	<	public void testThenAcceptBoth3() {
1887	<	CompletableFuture<Integer> f, g;
1888	<	CompletableFuture<Void> h;
1889	<	FailingBiConsumer r;
1890	<
1891	<	f = new CompletableFuture<>();
1892	<	g = new CompletableFuture<>();
1893	<	h = f.thenAcceptBoth(g, r = new FailingBiConsumer());
1894	<	f.complete(3);
1895	<	checkIncomplete(h);
1896	<	g.complete(1);
1897	<	checkCompletedWithWrappedCFException(h);
1898	<
1899	<	f = new CompletableFuture<>();
1900	<	g = new CompletableFuture<>();
1901	<	f.complete(3);
1902	<	g.complete(1);
1903	<	h = f.thenAcceptBoth(g, r = new FailingBiConsumer());
1904	<	checkCompletedWithWrappedCFException(h);
1905	<	}
1886	>	public void testThenAcceptBoth_sourceCancelled() throws Throwable {
1887	>	for (ExecutionMode m : ExecutionMode.values())
1888	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1889	>	for (boolean fFirst : new boolean[] { true, false })
1890	>	for (boolean failFirst : new boolean[] { true, false })
1891	>	for (Integer v1 : new Integer[] { 1, null })
1892	>	{
1893	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1894	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1895	>	final SubtractAction r1 = new SubtractAction(m);
1896	>	final SubtractAction r2 = new SubtractAction(m);
1897	>	final SubtractAction r3 = new SubtractAction(m);
1898	>
1899	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1900	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1901	>	final Callable<Boolean> complete1 = failFirst ?
1902	>	() -> fst.cancel(mayInterruptIfRunning) :
1903	>	() -> fst.complete(v1);
1904	>	final Callable<Boolean> complete2 = failFirst ?
1905	>	() -> snd.complete(v1) :
1906	>	() -> snd.cancel(mayInterruptIfRunning);
1907	>
1908	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1909	>	assertTrue(complete1.call());
1910	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1911	>	checkIncomplete(h1);
1912	>	checkIncomplete(h2);
1913	>	assertTrue(complete2.call());
1914	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1915	>
1916	>	checkCompletedWithWrappedCancellationException(h1);
1917	>	checkCompletedWithWrappedCancellationException(h2);
1918	>	checkCompletedWithWrappedCancellationException(h3);
1919	>	r1.assertNotInvoked();
1920	>	r2.assertNotInvoked();
1921	>	r3.assertNotInvoked();
1922	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1923	>	checkCancelled(failFirst ? fst : snd);
1924	>	}}
1925
1926		/**
1927	<	* thenAcceptBoth result completes exceptionally if either source cancelled
1927	>	* thenAcceptBoth result completes exceptionally if action does
1928		*/
1929	<	public void testThenAcceptBoth4() {
1930	<	CompletableFuture<Integer> f, g;
1931	<	CompletableFuture<Void> h;
1932	<	SubtractAction r;
1933	<
1934	<	f = new CompletableFuture<>();
1935	<	g = new CompletableFuture<>();
1936	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1937	<	assertTrue(f.cancel(true));
1938	<	checkIncomplete(h);
1939	<	g.complete(1);
1940	<	checkCompletedWithWrappedCancellationException(h);
1941	<
1942	<	f = new CompletableFuture<>();
1943	<	g = new CompletableFuture<>();
1944	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1945	<	assertTrue(g.cancel(true));
1946	<	checkIncomplete(h);
1947	<	f.complete(3);
1948	<	checkCompletedWithWrappedCancellationException(h);
1949	<
1950	<	f = new CompletableFuture<>();
1951	<	g = new CompletableFuture<>();
1952	<	f.complete(3);
1953	<	assertTrue(g.cancel(true));
1954	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1955	<	checkCompletedWithWrappedCancellationException(h);
1956	<
1957	<	f = new CompletableFuture<>();
1958	<	g = new CompletableFuture<>();
1959	<	assertTrue(f.cancel(true));
1960	<	g.complete(3);
914	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
915	<	checkCompletedWithWrappedCancellationException(h);
916	<	}
1929	>	public void testThenAcceptBoth_actionFailed() {
1930	>	for (ExecutionMode m : ExecutionMode.values())
1931	>	for (boolean fFirst : new boolean[] { true, false })
1932	>	for (Integer v1 : new Integer[] { 1, null })
1933	>	for (Integer v2 : new Integer[] { 2, null })
1934	>	{
1935	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1936	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1937	>	final FailingBiConsumer r1 = new FailingBiConsumer(m);
1938	>	final FailingBiConsumer r2 = new FailingBiConsumer(m);
1939	>	final FailingBiConsumer r3 = new FailingBiConsumer(m);
1940	>
1941	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1942	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1943	>	final Integer w1 =  fFirst ? v1 : v2;
1944	>	final Integer w2 = !fFirst ? v1 : v2;
1945	>
1946	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1947	>	assertTrue(fst.complete(w1));
1948	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1949	>	assertTrue(snd.complete(w2));
1950	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1951	>
1952	>	checkCompletedWithWrappedException(h1, r1.ex);
1953	>	checkCompletedWithWrappedException(h2, r2.ex);
1954	>	checkCompletedWithWrappedException(h3, r3.ex);
1955	>	r1.assertInvoked();
1956	>	r2.assertInvoked();
1957	>	r3.assertInvoked();
1958	>	checkCompletedNormally(f, v1);
1959	>	checkCompletedNormally(g, v2);
1960	>	}}
1961
1962		/**
1963		* runAfterBoth result completes normally after normal
1964		* completion of sources
1965		*/
1966	<	public void testRunAfterBoth() {
1967	<	CompletableFuture<Integer> f, g;
1968	<	CompletableFuture<Void> h;
1969	<	Noop r;
1970	<
1971	<	f = new CompletableFuture<>();
1972	<	g = new CompletableFuture<>();
1973	<	h = f.runAfterBoth(g, r = new Noop());
1974	<	f.complete(3);
1975	<	checkIncomplete(h);
1976	<	g.complete(1);
1977	<	checkCompletedNormally(h, null);
1978	<	assertTrue(r.ran);
1979	<
1980	<	f = new CompletableFuture<>();
1981	<	g = new CompletableFuture<>();
1982	<	h = f.runAfterBoth(g, r = new Noop());
1983	<	g.complete(1);
1984	<	checkIncomplete(h);
1985	<	f.complete(3);
1986	<	checkCompletedNormally(h, null);
1987	<	assertTrue(r.ran);
1988	<
1989	<	f = new CompletableFuture<>();
1990	<	g = new CompletableFuture<>();
1991	<	g.complete(1);
1992	<	f.complete(3);
1993	<	h = f.runAfterBoth(g, r = new Noop());
1994	<	checkCompletedNormally(h, null);
1995	<	assertTrue(r.ran);
1996	<	}
1966	>	public void testRunAfterBoth_normalCompletion() {
1967	>	for (ExecutionMode m : ExecutionMode.values())
1968	>	for (boolean fFirst : new boolean[] { true, false })
1969	>	for (Integer v1 : new Integer[] { 1, null })
1970	>	for (Integer v2 : new Integer[] { 2, null })
1971	>	{
1972	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1973	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1974	>	final Noop r1 = new Noop(m);
1975	>	final Noop r2 = new Noop(m);
1976	>	final Noop r3 = new Noop(m);
1977	>
1978	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1979	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1980	>	final Integer w1 =  fFirst ? v1 : v2;
1981	>	final Integer w2 = !fFirst ? v1 : v2;
1982	>
1983	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1984	>	assertTrue(fst.complete(w1));
1985	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1986	>	checkIncomplete(h1);
1987	>	checkIncomplete(h2);
1988	>	r1.assertNotInvoked();
1989	>	r2.assertNotInvoked();
1990	>	assertTrue(snd.complete(w2));
1991	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
1992	>
1993	>	checkCompletedNormally(h1, null);
1994	>	checkCompletedNormally(h2, null);
1995	>	checkCompletedNormally(h3, null);
1996	>	r1.assertInvoked();
1997	>	r2.assertInvoked();
1998	>	r3.assertInvoked();
1999	>	checkCompletedNormally(f, v1);
2000	>	checkCompletedNormally(g, v2);
2001	>	}}
2002
2003		/**
2004		* runAfterBoth result completes exceptionally after exceptional
2005		* completion of either source
2006		*/
2007	<	public void testRunAfterBoth2() {
2008	<	CompletableFuture<Integer> f, g;
2009	<	CompletableFuture<Void> h;
2010	<	Noop r;
2011	<
2012	<	f = new CompletableFuture<>();
2013	<	g = new CompletableFuture<>();
2014	<	h = f.runAfterBoth(g, r = new Noop());
2015	<	f.completeExceptionally(new CFException());
2016	<	checkIncomplete(h);
2017	<	g.complete(1);
2018	<	checkCompletedWithWrappedCFException(h);
2019	<	assertFalse(r.ran);
2020	<
2021	<	f = new CompletableFuture<>();
2022	<	g = new CompletableFuture<>();
2023	<	h = f.runAfterBoth(g, r = new Noop());
2024	<	g.completeExceptionally(new CFException());
2025	<	checkIncomplete(h);
2026	<	f.complete(3);
2027	<	checkCompletedWithWrappedCFException(h);
2028	<	assertFalse(r.ran);
2029	<
2030	<	f = new CompletableFuture<>();
2031	<	g = new CompletableFuture<>();
2032	<	g.completeExceptionally(new CFException());
2033	<	f.complete(3);
2034	<	h = f.runAfterBoth(g, r = new Noop());
2035	<	checkCompletedWithWrappedCFException(h);
2036	<	assertFalse(r.ran);
2037	<
2038	<	f = new CompletableFuture<>();
2039	<	g = new CompletableFuture<>();
2040	<	f.completeExceptionally(new CFException());
2041	<	g.complete(1);
2042	<	h = f.runAfterBoth(g, r = new Noop());
2043	<	checkCompletedWithWrappedCFException(h);
2044	<	assertFalse(r.ran);
2045	<	}
2007	>	public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
2008	>	for (ExecutionMode m : ExecutionMode.values())
2009	>	for (boolean fFirst : new boolean[] { true, false })
2010	>	for (boolean failFirst : new boolean[] { true, false })
2011	>	for (Integer v1 : new Integer[] { 1, null })
2012	>	{
2013	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2014	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2015	>	final CFException ex = new CFException();
2016	>	final Noop r1 = new Noop(m);
2017	>	final Noop r2 = new Noop(m);
2018	>	final Noop r3 = new Noop(m);
2019	>
2020	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2021	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2022	>	final Callable<Boolean> complete1 = failFirst ?
2023	>	() -> fst.completeExceptionally(ex) :
2024	>	() -> fst.complete(v1);
2025	>	final Callable<Boolean> complete2 = failFirst ?
2026	>	() -> snd.complete(v1) :
2027	>	() -> snd.completeExceptionally(ex);
2028	>
2029	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2030	>	assertTrue(complete1.call());
2031	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2032	>	checkIncomplete(h1);
2033	>	checkIncomplete(h2);
2034	>	assertTrue(complete2.call());
2035	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2036	>
2037	>	checkCompletedWithWrappedException(h1, ex);
2038	>	checkCompletedWithWrappedException(h2, ex);
2039	>	checkCompletedWithWrappedException(h3, ex);
2040	>	r1.assertNotInvoked();
2041	>	r2.assertNotInvoked();
2042	>	r3.assertNotInvoked();
2043	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2044	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
2045	>	}}
2046
2047		/**
2048	<	* runAfterBoth result completes exceptionally if action does
2048	>	* runAfterBoth result completes exceptionally if either source cancelled
2049		*/
2050	<	public void testRunAfterBoth3() {
2051	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2052	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2053	<	FailingNoop r = new FailingNoop();
2054	<	CompletableFuture<Void> g = f.runAfterBoth(f2, r);
2055	<	f.complete(one);
2056	<	checkIncomplete(g);
2057	<	f2.complete(two);
2058	<	checkCompletedWithWrappedCFException(g);
2059	<	}
2050	>	public void testRunAfterBoth_sourceCancelled() throws Throwable {
2051	>	for (ExecutionMode m : ExecutionMode.values())
2052	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2053	>	for (boolean fFirst : new boolean[] { true, false })
2054	>	for (boolean failFirst : new boolean[] { true, false })
2055	>	for (Integer v1 : new Integer[] { 1, null })
2056	>	{
2057	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2058	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2059	>	final Noop r1 = new Noop(m);
2060	>	final Noop r2 = new Noop(m);
2061	>	final Noop r3 = new Noop(m);
2062	>
2063	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2064	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2065	>	final Callable<Boolean> complete1 = failFirst ?
2066	>	() -> fst.cancel(mayInterruptIfRunning) :
2067	>	() -> fst.complete(v1);
2068	>	final Callable<Boolean> complete2 = failFirst ?
2069	>	() -> snd.complete(v1) :
2070	>	() -> snd.cancel(mayInterruptIfRunning);
2071	>
2072	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2073	>	assertTrue(complete1.call());
2074	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2075	>	checkIncomplete(h1);
2076	>	checkIncomplete(h2);
2077	>	assertTrue(complete2.call());
2078	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2079	>
2080	>	checkCompletedWithWrappedCancellationException(h1);
2081	>	checkCompletedWithWrappedCancellationException(h2);
2082	>	checkCompletedWithWrappedCancellationException(h3);
2083	>	r1.assertNotInvoked();
2084	>	r2.assertNotInvoked();
2085	>	r3.assertNotInvoked();
2086	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2087	>	checkCancelled(failFirst ? fst : snd);
2088	>	}}
2089
2090		/**
2091	<	* runAfterBoth result completes exceptionally if either source cancelled
2091	>	* runAfterBoth result completes exceptionally if action does
2092		*/
2093	<	public void testRunAfterBoth4() {
2094	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2095	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2096	<	Noop r = new Noop();
2097	<	CompletableFuture<Void> g = f.runAfterBoth(f2, r);
2098	<	assertTrue(f.cancel(true));
2099	<	f2.complete(two);
2100	<	checkCompletedWithWrappedCancellationException(g);
2101	<	f = new CompletableFuture<>();
2102	<	f2 = new CompletableFuture<>();
2103	<	r = new Noop();
2104	<	g = f.runAfterBoth(f2, r);
2105	<	f.complete(one);
2106	<	assertTrue(f2.cancel(true));
2107	<	checkCompletedWithWrappedCancellationException(g);
2108	<	}
2093	>	public void testRunAfterBoth_actionFailed() {
2094	>	for (ExecutionMode m : ExecutionMode.values())
2095	>	for (boolean fFirst : new boolean[] { true, false })
2096	>	for (Integer v1 : new Integer[] { 1, null })
2097	>	for (Integer v2 : new Integer[] { 2, null })
2098	>	{
2099	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2100	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2101	>	final FailingRunnable r1 = new FailingRunnable(m);
2102	>	final FailingRunnable r2 = new FailingRunnable(m);
2103	>	final FailingRunnable r3 = new FailingRunnable(m);
2104	>
2105	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2106	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2107	>	final Integer w1 =  fFirst ? v1 : v2;
2108	>	final Integer w2 = !fFirst ? v1 : v2;
2109	>
2110	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2111	>	assertTrue(fst.complete(w1));
2112	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2113	>	assertTrue(snd.complete(w2));
2114	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2115	>
2116	>	checkCompletedWithWrappedException(h1, r1.ex);
2117	>	checkCompletedWithWrappedException(h2, r2.ex);
2118	>	checkCompletedWithWrappedException(h3, r3.ex);
2119	>	r1.assertInvoked();
2120	>	r2.assertInvoked();
2121	>	r3.assertInvoked();
2122	>	checkCompletedNormally(f, v1);
2123	>	checkCompletedNormally(g, v2);
2124	>	}}
2125
2126		/**
2127		* applyToEither result completes normally after normal completion
2128		* of either source
2129		*/
2130	<	public void testApplyToEither() {
2131	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2132	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2133	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
2134	<	f.complete(one);
2135	<	checkCompletedNormally(g, two);
2136	<	f2.complete(one);
2137	<	checkCompletedNormally(g, two);
2138	<
2139	<	f = new CompletableFuture<>();
2140	<	f.complete(one);
2141	<	f2 = new CompletableFuture<>();
2142	<	g = f.applyToEither(f2, inc);
2143	<	checkCompletedNormally(g, two);
2144	<	}
2130	>	public void testApplyToEither_normalCompletion() {
2131	>	for (ExecutionMode m : ExecutionMode.values())
2132	>	for (Integer v1 : new Integer[] { 1, null })
2133	>	for (Integer v2 : new Integer[] { 2, null })
2134	>	{
2135	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2136	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2137	>	final IncFunction[] rs = new IncFunction[6];
2138	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2139	>
2140	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2141	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2142	>	checkIncomplete(h0);
2143	>	checkIncomplete(h1);
2144	>	rs[0].assertNotInvoked();
2145	>	rs[1].assertNotInvoked();
2146	>	f.complete(v1);
2147	>	checkCompletedNormally(h0, inc(v1));
2148	>	checkCompletedNormally(h1, inc(v1));
2149	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2150	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2151	>	checkCompletedNormally(h2, inc(v1));
2152	>	checkCompletedNormally(h3, inc(v1));
2153	>	g.complete(v2);
2154	>
2155	>	// unspecified behavior - both source completions available
2156	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2157	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2158	>	rs[4].assertValue(h4.join());
2159	>	rs[5].assertValue(h5.join());
2160	>	assertTrue(Objects.equals(inc(v1), h4.join()) ||
2161	>	Objects.equals(inc(v2), h4.join()));
2162	>	assertTrue(Objects.equals(inc(v1), h5.join()) ||
2163	>	Objects.equals(inc(v2), h5.join()));
2164	>
2165	>	checkCompletedNormally(f, v1);
2166	>	checkCompletedNormally(g, v2);
2167	>	checkCompletedNormally(h0, inc(v1));
2168	>	checkCompletedNormally(h1, inc(v1));
2169	>	checkCompletedNormally(h2, inc(v1));
2170	>	checkCompletedNormally(h3, inc(v1));
2171	>	for (int i = 0; i < 4; i++) rs[i].assertValue(inc(v1));
2172	>	}}
2173
2174		/**
2175		* applyToEither result completes exceptionally after exceptional
2176		* completion of either source
2177		*/
2178	<	public void testApplyToEither2() {
2179	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2180	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2181	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
2182	<	f.completeExceptionally(new CFException());
2183	<	f2.complete(one);
2184	<	checkCompletedWithWrappedCFException(g);
2178	>	public void testApplyToEither_exceptionalCompletion() {
2179	>	for (ExecutionMode m : ExecutionMode.values())
2180	>	for (Integer v1 : new Integer[] { 1, null })
2181	>	{
2182	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2183	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2184	>	final CFException ex = new CFException();
2185	>	final IncFunction[] rs = new IncFunction[6];
2186	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2187	>
2188	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2189	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2190	>	checkIncomplete(h0);
2191	>	checkIncomplete(h1);
2192	>	rs[0].assertNotInvoked();
2193	>	rs[1].assertNotInvoked();
2194	>	f.completeExceptionally(ex);
2195	>	checkCompletedWithWrappedException(h0, ex);
2196	>	checkCompletedWithWrappedException(h1, ex);
2197	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2198	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2199	>	checkCompletedWithWrappedException(h2, ex);
2200	>	checkCompletedWithWrappedException(h3, ex);
2201	>	g.complete(v1);
2202	>
2203	>	// unspecified behavior - both source completions available
2204	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2205	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2206	>	try {
2207	>	assertEquals(inc(v1), h4.join());
2208	>	rs[4].assertValue(inc(v1));
2209	>	} catch (CompletionException ok) {
2210	>	checkCompletedWithWrappedException(h4, ex);
2211	>	rs[4].assertNotInvoked();
2212	>	}
2213	>	try {
2214	>	assertEquals(inc(v1), h5.join());
2215	>	rs[5].assertValue(inc(v1));
2216	>	} catch (CompletionException ok) {
2217	>	checkCompletedWithWrappedException(h5, ex);
2218	>	rs[5].assertNotInvoked();
2219	>	}
2220
2221	<	f = new CompletableFuture<>();
2222	<	f2 = new CompletableFuture<>();
2223	<	f2.completeExceptionally(new CFException());
2224	<	g = f.applyToEither(f2, inc);
2225	<	checkCompletedWithWrappedCFException(g);
2226	<	}
2221	>	checkCompletedExceptionally(f, ex);
2222	>	checkCompletedNormally(g, v1);
2223	>	checkCompletedWithWrappedException(h0, ex);
2224	>	checkCompletedWithWrappedException(h1, ex);
2225	>	checkCompletedWithWrappedException(h2, ex);
2226	>	checkCompletedWithWrappedException(h3, ex);
2227	>	checkCompletedWithWrappedException(h4, ex);
2228	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2229	>	}}
2230	>
2231	>	public void testApplyToEither_exceptionalCompletion2() {
2232	>	for (ExecutionMode m : ExecutionMode.values())
2233	>	for (boolean fFirst : new boolean[] { true, false })
2234	>	for (Integer v1 : new Integer[] { 1, null })
2235	>	{
2236	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2237	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2238	>	final CFException ex = new CFException();
2239	>	final IncFunction[] rs = new IncFunction[6];
2240	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2241	>
2242	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2243	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2244	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2245	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2246	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2247	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2248	>
2249	>	// unspecified behavior - both source completions available
2250	>	try {
2251	>	assertEquals(inc(v1), h0.join());
2252	>	rs[0].assertValue(inc(v1));
2253	>	} catch (CompletionException ok) {
2254	>	checkCompletedWithWrappedException(h0, ex);
2255	>	rs[0].assertNotInvoked();
2256	>	}
2257	>	try {
2258	>	assertEquals(inc(v1), h1.join());
2259	>	rs[1].assertValue(inc(v1));
2260	>	} catch (CompletionException ok) {
2261	>	checkCompletedWithWrappedException(h1, ex);
2262	>	rs[1].assertNotInvoked();
2263	>	}
2264	>	try {
2265	>	assertEquals(inc(v1), h2.join());
2266	>	rs[2].assertValue(inc(v1));
2267	>	} catch (CompletionException ok) {
2268	>	checkCompletedWithWrappedException(h2, ex);
2269	>	rs[2].assertNotInvoked();
2270	>	}
2271	>	try {
2272	>	assertEquals(inc(v1), h3.join());
2273	>	rs[3].assertValue(inc(v1));
2274	>	} catch (CompletionException ok) {
2275	>	checkCompletedWithWrappedException(h3, ex);
2276	>	rs[3].assertNotInvoked();
2277	>	}
2278	>
2279	>	checkCompletedNormally(f, v1);
2280	>	checkCompletedExceptionally(g, ex);
2281	>	}}
2282
2283		/**
2284	<	* applyToEither result completes exceptionally if action does
2284	>	* applyToEither result completes exceptionally if either source cancelled
2285		*/
2286	<	public void testApplyToEither3() {
2287	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2288	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2289	<	FailingFunction r = new FailingFunction();
2290	<	CompletableFuture<Integer> g = f.applyToEither(f2, r);
2291	<	f2.complete(two);
2292	<	checkCompletedWithWrappedCFException(g);
2293	<	}
2286	>	public void testApplyToEither_sourceCancelled() {
2287	>	for (ExecutionMode m : ExecutionMode.values())
2288	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2289	>	for (Integer v1 : new Integer[] { 1, null })
2290	>	{
2291	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2292	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2293	>	final IncFunction[] rs = new IncFunction[6];
2294	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2295	>
2296	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2297	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2298	>	checkIncomplete(h0);
2299	>	checkIncomplete(h1);
2300	>	rs[0].assertNotInvoked();
2301	>	rs[1].assertNotInvoked();
2302	>	f.cancel(mayInterruptIfRunning);
2303	>	checkCompletedWithWrappedCancellationException(h0);
2304	>	checkCompletedWithWrappedCancellationException(h1);
2305	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2306	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2307	>	checkCompletedWithWrappedCancellationException(h2);
2308	>	checkCompletedWithWrappedCancellationException(h3);
2309	>	g.complete(v1);
2310	>
2311	>	// unspecified behavior - both source completions available
2312	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2313	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2314	>	try {
2315	>	assertEquals(inc(v1), h4.join());
2316	>	rs[4].assertValue(inc(v1));
2317	>	} catch (CompletionException ok) {
2318	>	checkCompletedWithWrappedCancellationException(h4);
2319	>	rs[4].assertNotInvoked();
2320	>	}
2321	>	try {
2322	>	assertEquals(inc(v1), h5.join());
2323	>	rs[5].assertValue(inc(v1));
2324	>	} catch (CompletionException ok) {
2325	>	checkCompletedWithWrappedCancellationException(h5);
2326	>	rs[5].assertNotInvoked();
2327	>	}
2328	>
2329	>	checkCancelled(f);
2330	>	checkCompletedNormally(g, v1);
2331	>	checkCompletedWithWrappedCancellationException(h0);
2332	>	checkCompletedWithWrappedCancellationException(h1);
2333	>	checkCompletedWithWrappedCancellationException(h2);
2334	>	checkCompletedWithWrappedCancellationException(h3);
2335	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2336	>	}}
2337	>
2338	>	public void testApplyToEither_sourceCancelled2() {
2339	>	for (ExecutionMode m : ExecutionMode.values())
2340	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2341	>	for (boolean fFirst : new boolean[] { true, false })
2342	>	for (Integer v1 : new Integer[] { 1, null })
2343	>	{
2344	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2345	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2346	>	final IncFunction[] rs = new IncFunction[6];
2347	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2348	>
2349	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2350	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2351	>	assertTrue(fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2352	>	assertTrue(!fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2353	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2354	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2355	>
2356	>	// unspecified behavior - both source completions available
2357	>	try {
2358	>	assertEquals(inc(v1), h0.join());
2359	>	rs[0].assertValue(inc(v1));
2360	>	} catch (CompletionException ok) {
2361	>	checkCompletedWithWrappedCancellationException(h0);
2362	>	rs[0].assertNotInvoked();
2363	>	}
2364	>	try {
2365	>	assertEquals(inc(v1), h1.join());
2366	>	rs[1].assertValue(inc(v1));
2367	>	} catch (CompletionException ok) {
2368	>	checkCompletedWithWrappedCancellationException(h1);
2369	>	rs[1].assertNotInvoked();
2370	>	}
2371	>	try {
2372	>	assertEquals(inc(v1), h2.join());
2373	>	rs[2].assertValue(inc(v1));
2374	>	} catch (CompletionException ok) {
2375	>	checkCompletedWithWrappedCancellationException(h2);
2376	>	rs[2].assertNotInvoked();
2377	>	}
2378	>	try {
2379	>	assertEquals(inc(v1), h3.join());
2380	>	rs[3].assertValue(inc(v1));
2381	>	} catch (CompletionException ok) {
2382	>	checkCompletedWithWrappedCancellationException(h3);
2383	>	rs[3].assertNotInvoked();
2384	>	}
2385	>
2386	>	checkCompletedNormally(f, v1);
2387	>	checkCancelled(g);
2388	>	}}
2389
2390		/**
2391	<	* applyToEither result completes exceptionally if either source cancelled
2391	>	* applyToEither result completes exceptionally if action does
2392		*/
2393	<	public void testApplyToEither4() {
2394	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2395	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2396	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
2397	<	assertTrue(f.cancel(true));
2398	<	checkCompletedWithWrappedCancellationException(g);
2399	<	f = new CompletableFuture<>();
2400	<	f2 = new CompletableFuture<>();
2401	<	assertTrue(f2.cancel(true));
2402	<	checkCompletedWithWrappedCancellationException(g);
2403	<	}
2393	>	public void testApplyToEither_actionFailed() {
2394	>	for (ExecutionMode m : ExecutionMode.values())
2395	>	for (Integer v1 : new Integer[] { 1, null })
2396	>	for (Integer v2 : new Integer[] { 2, null })
2397	>	{
2398	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2399	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2400	>	final FailingFunction[] rs = new FailingFunction[6];
2401	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
2402	>
2403	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2404	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2405	>	f.complete(v1);
2406	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2407	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2408	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2409	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2410	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2411	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2412	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2413	>
2414	>	g.complete(v2);
2415	>
2416	>	// unspecified behavior - both source completions available
2417	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2418	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2419	>
2420	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2421	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2422	>	Objects.equals(v2, rs[4].value));
2423	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2424	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2425	>	Objects.equals(v2, rs[5].value));
2426	>
2427	>	checkCompletedNormally(f, v1);
2428	>	checkCompletedNormally(g, v2);
2429	>	}}
2430
2431		/**
2432		* acceptEither result completes normally after normal completion
2433		* of either source
2434		*/
2435	<	public void testAcceptEither() {
2436	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2437	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2438	<	IncAction r = new IncAction();
2439	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2440	<	f.complete(one);
2441	<	checkCompletedNormally(g, null);
2442	<	f2.complete(one);
2443	<	checkCompletedNormally(g, null);
2444	<	assertEquals(r.value, 2);
2445	<
2446	<	r = new IncAction();
2447	<	f = new CompletableFuture<>();
2448	<	f.complete(one);
2449	<	f2 = new CompletableFuture<>();
2450	<	g = f.acceptEither(f2, r);
2451	<	checkCompletedNormally(g, null);
2452	<	assertEquals(r.value, 2);
2453	<	}
2435	>	public void testAcceptEither_normalCompletion() {
2436	>	for (ExecutionMode m : ExecutionMode.values())
2437	>	for (Integer v1 : new Integer[] { 1, null })
2438	>	for (Integer v2 : new Integer[] { 2, null })
2439	>	{
2440	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2441	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2442	>	final NoopConsumer[] rs = new NoopConsumer[6];
2443	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2444	>
2445	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2446	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2447	>	checkIncomplete(h0);
2448	>	checkIncomplete(h1);
2449	>	rs[0].assertNotInvoked();
2450	>	rs[1].assertNotInvoked();
2451	>	f.complete(v1);
2452	>	checkCompletedNormally(h0, null);
2453	>	checkCompletedNormally(h1, null);
2454	>	rs[0].assertValue(v1);
2455	>	rs[1].assertValue(v1);
2456	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2457	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2458	>	checkCompletedNormally(h2, null);
2459	>	checkCompletedNormally(h3, null);
2460	>	rs[2].assertValue(v1);
2461	>	rs[3].assertValue(v1);
2462	>	g.complete(v2);
2463	>
2464	>	// unspecified behavior - both source completions available
2465	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2466	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2467	>	checkCompletedNormally(h4, null);
2468	>	checkCompletedNormally(h5, null);
2469	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2470	>	Objects.equals(v2, rs[4].value));
2471	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2472	>	Objects.equals(v2, rs[5].value));
2473	>
2474	>	checkCompletedNormally(f, v1);
2475	>	checkCompletedNormally(g, v2);
2476	>	checkCompletedNormally(h0, null);
2477	>	checkCompletedNormally(h1, null);
2478	>	checkCompletedNormally(h2, null);
2479	>	checkCompletedNormally(h3, null);
2480	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2481	>	}}
2482
2483		/**
2484		* acceptEither result completes exceptionally after exceptional
2485		* completion of either source
2486		*/
2487	<	public void testAcceptEither2() {
2488	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2489	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2490	<	IncAction r = new IncAction();
2491	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2492	<	f.completeExceptionally(new CFException());
2493	<	f2.complete(one);
2494	<	checkCompletedWithWrappedCFException(g);
2487	>	public void testAcceptEither_exceptionalCompletion() {
2488	>	for (ExecutionMode m : ExecutionMode.values())
2489	>	for (Integer v1 : new Integer[] { 1, null })
2490	>	{
2491	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2492	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2493	>	final CFException ex = new CFException();
2494	>	final NoopConsumer[] rs = new NoopConsumer[6];
2495	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2496	>
2497	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2498	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2499	>	checkIncomplete(h0);
2500	>	checkIncomplete(h1);
2501	>	rs[0].assertNotInvoked();
2502	>	rs[1].assertNotInvoked();
2503	>	f.completeExceptionally(ex);
2504	>	checkCompletedWithWrappedException(h0, ex);
2505	>	checkCompletedWithWrappedException(h1, ex);
2506	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2507	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2508	>	checkCompletedWithWrappedException(h2, ex);
2509	>	checkCompletedWithWrappedException(h3, ex);
2510	>
2511	>	g.complete(v1);
2512	>
2513	>	// unspecified behavior - both source completions available
2514	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2515	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2516	>	try {
2517	>	assertNull(h4.join());
2518	>	rs[4].assertValue(v1);
2519	>	} catch (CompletionException ok) {
2520	>	checkCompletedWithWrappedException(h4, ex);
2521	>	rs[4].assertNotInvoked();
2522	>	}
2523	>	try {
2524	>	assertNull(h5.join());
2525	>	rs[5].assertValue(v1);
2526	>	} catch (CompletionException ok) {
2527	>	checkCompletedWithWrappedException(h5, ex);
2528	>	rs[5].assertNotInvoked();
2529	>	}
2530
2531	<	r = new IncAction();
2532	<	f = new CompletableFuture<>();
2533	<	f2 = new CompletableFuture<>();
2534	<	f2.completeExceptionally(new CFException());
2535	<	g = f.acceptEither(f2, r);
2536	<	checkCompletedWithWrappedCFException(g);
2537	<	}
2531	>	checkCompletedExceptionally(f, ex);
2532	>	checkCompletedNormally(g, v1);
2533	>	checkCompletedWithWrappedException(h0, ex);
2534	>	checkCompletedWithWrappedException(h1, ex);
2535	>	checkCompletedWithWrappedException(h2, ex);
2536	>	checkCompletedWithWrappedException(h3, ex);
2537	>	checkCompletedWithWrappedException(h4, ex);
2538	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2539	>	}}
2540	>
2541	>	public void testAcceptEither_exceptionalCompletion2() {
2542	>	for (ExecutionMode m : ExecutionMode.values())
2543	>	for (boolean fFirst : new boolean[] { true, false })
2544	>	for (Integer v1 : new Integer[] { 1, null })
2545	>	{
2546	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2547	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2548	>	final CFException ex = new CFException();
2549	>	final NoopConsumer[] rs = new NoopConsumer[6];
2550	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2551	>
2552	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2553	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2554	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2555	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2556	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2557	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2558	>
2559	>	// unspecified behavior - both source completions available
2560	>	try {
2561	>	assertNull(h0.join());
2562	>	rs[0].assertValue(v1);
2563	>	} catch (CompletionException ok) {
2564	>	checkCompletedWithWrappedException(h0, ex);
2565	>	rs[0].assertNotInvoked();
2566	>	}
2567	>	try {
2568	>	assertNull(h1.join());
2569	>	rs[1].assertValue(v1);
2570	>	} catch (CompletionException ok) {
2571	>	checkCompletedWithWrappedException(h1, ex);
2572	>	rs[1].assertNotInvoked();
2573	>	}
2574	>	try {
2575	>	assertNull(h2.join());
2576	>	rs[2].assertValue(v1);
2577	>	} catch (CompletionException ok) {
2578	>	checkCompletedWithWrappedException(h2, ex);
2579	>	rs[2].assertNotInvoked();
2580	>	}
2581	>	try {
2582	>	assertNull(h3.join());
2583	>	rs[3].assertValue(v1);
2584	>	} catch (CompletionException ok) {
2585	>	checkCompletedWithWrappedException(h3, ex);
2586	>	rs[3].assertNotInvoked();
2587	>	}
2588	>
2589	>	checkCompletedNormally(f, v1);
2590	>	checkCompletedExceptionally(g, ex);
2591	>	}}
2592
2593		/**
2594	<	* acceptEither result completes exceptionally if action does
2594	>	* acceptEither result completes exceptionally if either source cancelled
2595		*/
2596	<	public void testAcceptEither3() {
2597	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2598	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2599	<	FailingConsumer r = new FailingConsumer();
2600	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2601	<	f2.complete(two);
2602	<	checkCompletedWithWrappedCFException(g);
2603	<	}
2596	>	public void testAcceptEither_sourceCancelled() {
2597	>	for (ExecutionMode m : ExecutionMode.values())
2598	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2599	>	for (Integer v1 : new Integer[] { 1, null })
2600	>	{
2601	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2602	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2603	>	final NoopConsumer[] rs = new NoopConsumer[6];
2604	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2605	>
2606	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2607	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2608	>	checkIncomplete(h0);
2609	>	checkIncomplete(h1);
2610	>	rs[0].assertNotInvoked();
2611	>	rs[1].assertNotInvoked();
2612	>	f.cancel(mayInterruptIfRunning);
2613	>	checkCompletedWithWrappedCancellationException(h0);
2614	>	checkCompletedWithWrappedCancellationException(h1);
2615	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2616	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2617	>	checkCompletedWithWrappedCancellationException(h2);
2618	>	checkCompletedWithWrappedCancellationException(h3);
2619	>
2620	>	g.complete(v1);
2621	>
2622	>	// unspecified behavior - both source completions available
2623	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2624	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2625	>	try {
2626	>	assertNull(h4.join());
2627	>	rs[4].assertValue(v1);
2628	>	} catch (CompletionException ok) {
2629	>	checkCompletedWithWrappedCancellationException(h4);
2630	>	rs[4].assertNotInvoked();
2631	>	}
2632	>	try {
2633	>	assertNull(h5.join());
2634	>	rs[5].assertValue(v1);
2635	>	} catch (CompletionException ok) {
2636	>	checkCompletedWithWrappedCancellationException(h5);
2637	>	rs[5].assertNotInvoked();
2638	>	}
2639	>
2640	>	checkCancelled(f);
2641	>	checkCompletedNormally(g, v1);
2642	>	checkCompletedWithWrappedCancellationException(h0);
2643	>	checkCompletedWithWrappedCancellationException(h1);
2644	>	checkCompletedWithWrappedCancellationException(h2);
2645	>	checkCompletedWithWrappedCancellationException(h3);
2646	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2647	>	}}
2648
2649		/**
2650	<	* acceptEither result completes exceptionally if either source cancelled
2650	>	* acceptEither result completes exceptionally if action does
2651		*/
2652	<	public void testAcceptEither4() {
2653	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2654	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2655	<	IncAction r = new IncAction();
2656	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2657	<	assertTrue(f.cancel(true));
2658	<	checkCompletedWithWrappedCancellationException(g);
2659	<	f = new CompletableFuture<>();
2660	<	f2 = new CompletableFuture<>();
2661	<	assertTrue(f2.cancel(true));
2662	<	checkCompletedWithWrappedCancellationException(g);
2663	<	}
2652	>	public void testAcceptEither_actionFailed() {
2653	>	for (ExecutionMode m : ExecutionMode.values())
2654	>	for (Integer v1 : new Integer[] { 1, null })
2655	>	for (Integer v2 : new Integer[] { 2, null })
2656	>	{
2657	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2658	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2659	>	final FailingConsumer[] rs = new FailingConsumer[6];
2660	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
2661	>
2662	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2663	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2664	>	f.complete(v1);
2665	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2666	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2667	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2668	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2669	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2670	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2671	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2672	>
2673	>	g.complete(v2);
2674	>
2675	>	// unspecified behavior - both source completions available
2676	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2677	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2678	>
2679	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2680	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2681	>	Objects.equals(v2, rs[4].value));
2682	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2683	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2684	>	Objects.equals(v2, rs[5].value));
2685	>
2686	>	checkCompletedNormally(f, v1);
2687	>	checkCompletedNormally(g, v2);
2688	>	}}
2689
2690		/**
2691		* runAfterEither result completes normally after normal completion
2692		* of either source
2693		*/
2694	<	public void testRunAfterEither() {
2695	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2696	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2697	<	Noop r = new Noop();
2698	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2699	<	f.complete(one);
2700	<	checkCompletedNormally(g, null);
2701	<	f2.complete(one);
2702	<	checkCompletedNormally(g, null);
2703	<	assertTrue(r.ran);
2704	<
2705	<	r = new Noop();
2706	<	f = new CompletableFuture<>();
2707	<	f.complete(one);
2708	<	f2 = new CompletableFuture<>();
2709	<	g = f.runAfterEither(f2, r);
2710	<	checkCompletedNormally(g, null);
2711	<	assertTrue(r.ran);
2712	<	}
2694	>	public void testRunAfterEither_normalCompletion() {
2695	>	for (ExecutionMode m : ExecutionMode.values())
2696	>	for (Integer v1 : new Integer[] { 1, null })
2697	>	for (Integer v2 : new Integer[] { 2, null })
2698	>	for (boolean pushNop : new boolean[] { true, false })
2699	>	{
2700	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2701	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2702	>	final Noop[] rs = new Noop[6];
2703	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2704	>
2705	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2706	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2707	>	checkIncomplete(h0);
2708	>	checkIncomplete(h1);
2709	>	rs[0].assertNotInvoked();
2710	>	rs[1].assertNotInvoked();
2711	>	if (pushNop) {          // ad hoc test of intra-completion interference
2712	>	m.thenRun(f, () -> {});
2713	>	m.thenRun(g, () -> {});
2714	>	}
2715	>	f.complete(v1);
2716	>	checkCompletedNormally(h0, null);
2717	>	checkCompletedNormally(h1, null);
2718	>	rs[0].assertInvoked();
2719	>	rs[1].assertInvoked();
2720	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2721	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2722	>	checkCompletedNormally(h2, null);
2723	>	checkCompletedNormally(h3, null);
2724	>	rs[2].assertInvoked();
2725	>	rs[3].assertInvoked();
2726	>
2727	>	g.complete(v2);
2728	>
2729	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2730	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2731	>
2732	>	checkCompletedNormally(f, v1);
2733	>	checkCompletedNormally(g, v2);
2734	>	checkCompletedNormally(h0, null);
2735	>	checkCompletedNormally(h1, null);
2736	>	checkCompletedNormally(h2, null);
2737	>	checkCompletedNormally(h3, null);
2738	>	checkCompletedNormally(h4, null);
2739	>	checkCompletedNormally(h5, null);
2740	>	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2741	>	}}
2742
2743		/**
2744		* runAfterEither result completes exceptionally after exceptional
2745		* completion of either source
2746		*/
2747	<	public void testRunAfterEither2() {
2748	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2749	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2750	<	Noop r = new Noop();
2751	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2752	<	f.completeExceptionally(new CFException());
2753	<	f2.complete(one);
2754	<	checkCompletedWithWrappedCFException(g);
2747	>	public void testRunAfterEither_exceptionalCompletion() {
2748	>	for (ExecutionMode m : ExecutionMode.values())
2749	>	for (Integer v1 : new Integer[] { 1, null })
2750	>	{
2751	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2752	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2753	>	final CFException ex = new CFException();
2754	>	final Noop[] rs = new Noop[6];
2755	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2756	>
2757	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2758	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2759	>	checkIncomplete(h0);
2760	>	checkIncomplete(h1);
2761	>	rs[0].assertNotInvoked();
2762	>	rs[1].assertNotInvoked();
2763	>	assertTrue(f.completeExceptionally(ex));
2764	>	checkCompletedWithWrappedException(h0, ex);
2765	>	checkCompletedWithWrappedException(h1, ex);
2766	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2767	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2768	>	checkCompletedWithWrappedException(h2, ex);
2769	>	checkCompletedWithWrappedException(h3, ex);
2770	>
2771	>	assertTrue(g.complete(v1));
2772	>
2773	>	// unspecified behavior - both source completions available
2774	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2775	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2776	>	try {
2777	>	assertNull(h4.join());
2778	>	rs[4].assertInvoked();
2779	>	} catch (CompletionException ok) {
2780	>	checkCompletedWithWrappedException(h4, ex);
2781	>	rs[4].assertNotInvoked();
2782	>	}
2783	>	try {
2784	>	assertNull(h5.join());
2785	>	rs[5].assertInvoked();
2786	>	} catch (CompletionException ok) {
2787	>	checkCompletedWithWrappedException(h5, ex);
2788	>	rs[5].assertNotInvoked();
2789	>	}
2790
2791	<	r = new Noop();
2792	<	f = new CompletableFuture<>();
2793	<	f2 = new CompletableFuture<>();
2794	<	f2.completeExceptionally(new CFException());
2795	<	g = f.runAfterEither(f2, r);
2796	<	checkCompletedWithWrappedCFException(g);
2797	<	}
2791	>	checkCompletedExceptionally(f, ex);
2792	>	checkCompletedNormally(g, v1);
2793	>	checkCompletedWithWrappedException(h0, ex);
2794	>	checkCompletedWithWrappedException(h1, ex);
2795	>	checkCompletedWithWrappedException(h2, ex);
2796	>	checkCompletedWithWrappedException(h3, ex);
2797	>	checkCompletedWithWrappedException(h4, ex);
2798	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2799	>	}}
2800	>
2801	>	public void testRunAfterEither_exceptionalCompletion2() {
2802	>	for (ExecutionMode m : ExecutionMode.values())
2803	>	for (boolean fFirst : new boolean[] { true, false })
2804	>	for (Integer v1 : new Integer[] { 1, null })
2805	>	{
2806	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2807	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2808	>	final CFException ex = new CFException();
2809	>	final Noop[] rs = new Noop[6];
2810	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2811	>
2812	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2813	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2814	>	assertTrue( fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2815	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2816	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2817	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2818	>
2819	>	// unspecified behavior - both source completions available
2820	>	try {
2821	>	assertNull(h0.join());
2822	>	rs[0].assertInvoked();
2823	>	} catch (CompletionException ok) {
2824	>	checkCompletedWithWrappedException(h0, ex);
2825	>	rs[0].assertNotInvoked();
2826	>	}
2827	>	try {
2828	>	assertNull(h1.join());
2829	>	rs[1].assertInvoked();
2830	>	} catch (CompletionException ok) {
2831	>	checkCompletedWithWrappedException(h1, ex);
2832	>	rs[1].assertNotInvoked();
2833	>	}
2834	>	try {
2835	>	assertNull(h2.join());
2836	>	rs[2].assertInvoked();
2837	>	} catch (CompletionException ok) {
2838	>	checkCompletedWithWrappedException(h2, ex);
2839	>	rs[2].assertNotInvoked();
2840	>	}
2841	>	try {
2842	>	assertNull(h3.join());
2843	>	rs[3].assertInvoked();
2844	>	} catch (CompletionException ok) {
2845	>	checkCompletedWithWrappedException(h3, ex);
2846	>	rs[3].assertNotInvoked();
2847	>	}
2848	>
2849	>	checkCompletedNormally(f, v1);
2850	>	checkCompletedExceptionally(g, ex);
2851	>	}}
2852
2853		/**
2854	<	* runAfterEither result completes exceptionally if action does
2854	>	* runAfterEither result completes exceptionally if either source cancelled
2855		*/
2856	<	public void testRunAfterEither3() {
2857	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2858	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2859	<	FailingNoop r = new FailingNoop();
2860	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2861	<	f2.complete(two);
2862	<	checkCompletedWithWrappedCFException(g);
2863	<	}
2856	>	public void testRunAfterEither_sourceCancelled() {
2857	>	for (ExecutionMode m : ExecutionMode.values())
2858	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2859	>	for (Integer v1 : new Integer[] { 1, null })
2860	>	{
2861	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2862	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2863	>	final Noop[] rs = new Noop[6];
2864	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2865	>
2866	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2867	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2868	>	checkIncomplete(h0);
2869	>	checkIncomplete(h1);
2870	>	rs[0].assertNotInvoked();
2871	>	rs[1].assertNotInvoked();
2872	>	f.cancel(mayInterruptIfRunning);
2873	>	checkCompletedWithWrappedCancellationException(h0);
2874	>	checkCompletedWithWrappedCancellationException(h1);
2875	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2876	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2877	>	checkCompletedWithWrappedCancellationException(h2);
2878	>	checkCompletedWithWrappedCancellationException(h3);
2879	>
2880	>	assertTrue(g.complete(v1));
2881	>
2882	>	// unspecified behavior - both source completions available
2883	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2884	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2885	>	try {
2886	>	assertNull(h4.join());
2887	>	rs[4].assertInvoked();
2888	>	} catch (CompletionException ok) {
2889	>	checkCompletedWithWrappedCancellationException(h4);
2890	>	rs[4].assertNotInvoked();
2891	>	}
2892	>	try {
2893	>	assertNull(h5.join());
2894	>	rs[5].assertInvoked();
2895	>	} catch (CompletionException ok) {
2896	>	checkCompletedWithWrappedCancellationException(h5);
2897	>	rs[5].assertNotInvoked();
2898	>	}
2899	>
2900	>	checkCancelled(f);
2901	>	checkCompletedNormally(g, v1);
2902	>	checkCompletedWithWrappedCancellationException(h0);
2903	>	checkCompletedWithWrappedCancellationException(h1);
2904	>	checkCompletedWithWrappedCancellationException(h2);
2905	>	checkCompletedWithWrappedCancellationException(h3);
2906	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2907	>	}}
2908
2909		/**
2910	<	* runAfterEither result completes exceptionally if either source cancelled
2910	>	* runAfterEither result completes exceptionally if action does
2911		*/
2912	<	public void testRunAfterEither4() {
2913	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2914	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2915	<	Noop r = new Noop();
2916	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2917	<	assertTrue(f.cancel(true));
2918	<	checkCompletedWithWrappedCancellationException(g);
2919	<	f = new CompletableFuture<>();
2920	<	f2 = new CompletableFuture<>();
2921	<	assertTrue(f2.cancel(true));
2922	<	checkCompletedWithWrappedCancellationException(g);
2923	<	}
2912	>	public void testRunAfterEither_actionFailed() {
2913	>	for (ExecutionMode m : ExecutionMode.values())
2914	>	for (Integer v1 : new Integer[] { 1, null })
2915	>	for (Integer v2 : new Integer[] { 2, null })
2916	>	{
2917	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2918	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2919	>	final FailingRunnable[] rs = new FailingRunnable[6];
2920	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
2921	>
2922	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2923	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2924	>	assertTrue(f.complete(v1));
2925	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2926	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2927	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2928	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2929	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2930	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2931	>	for (int i = 0; i < 4; i++) rs[i].assertInvoked();
2932	>	assertTrue(g.complete(v2));
2933	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2934	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2935	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2936	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2937	>
2938	>	checkCompletedNormally(f, v1);
2939	>	checkCompletedNormally(g, v2);
2940	>	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2941	>	}}
2942
2943		/**
2944		* thenCompose result completes normally after normal completion of source
2945		*/
2946	<	public void testThenCompose() {
2947	<	CompletableFuture<Integer> f, g;
2948	<	CompletableFutureInc r;
2949	<
2950	<	f = new CompletableFuture<>();
2951	<	g = f.thenCompose(r = new CompletableFutureInc());
2952	<	f.complete(one);
2953	<	checkCompletedNormally(g, two);
2954	<	assertTrue(r.ran);
2955	<
2956	<	f = new CompletableFuture<>();
2957	<	f.complete(one);
2958	<	g = f.thenCompose(r = new CompletableFutureInc());
2959	<	checkCompletedNormally(g, two);
2960	<	assertTrue(r.ran);
1262	<	}
2946	>	public void testThenCompose_normalCompletion() {
2947	>	for (ExecutionMode m : ExecutionMode.values())
2948	>	for (boolean createIncomplete : new boolean[] { true, false })
2949	>	for (Integer v1 : new Integer[] { 1, null })
2950	>	{
2951	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2952	>	final CompletableFutureInc r = new CompletableFutureInc(m);
2953	>	if (!createIncomplete) assertTrue(f.complete(v1));
2954	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
2955	>	if (createIncomplete) assertTrue(f.complete(v1));
2956	>
2957	>	checkCompletedNormally(g, inc(v1));
2958	>	checkCompletedNormally(f, v1);
2959	>	r.assertValue(v1);
2960	>	}}
2961
2962		/**
2963		* thenCompose result completes exceptionally after exceptional
2964		* completion of source
2965		*/
2966	<	public void testThenCompose2() {
2967	<	CompletableFuture<Integer> f, g;
2968	<	CompletableFutureInc r;
2969	<
2970	<	f = new CompletableFuture<>();
2971	<	g = f.thenCompose(r = new CompletableFutureInc());
2972	<	f.completeExceptionally(new CFException());
2973	<	checkCompletedWithWrappedCFException(g);
2974	<
2975	<	f = new CompletableFuture<>();
2976	<	f.completeExceptionally(new CFException());
2977	<	g = f.thenCompose(r = new CompletableFutureInc());
2978	<	checkCompletedWithWrappedCFException(g);
2979	<	}
2966	>	public void testThenCompose_exceptionalCompletion() {
2967	>	for (ExecutionMode m : ExecutionMode.values())
2968	>	for (boolean createIncomplete : new boolean[] { true, false })
2969	>	{
2970	>	final CFException ex = new CFException();
2971	>	final CompletableFutureInc r = new CompletableFutureInc(m);
2972	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2973	>	if (!createIncomplete) f.completeExceptionally(ex);
2974	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
2975	>	if (createIncomplete) f.completeExceptionally(ex);
2976	>
2977	>	checkCompletedWithWrappedException(g, ex);
2978	>	checkCompletedExceptionally(f, ex);
2979	>	r.assertNotInvoked();
2980	>	}}
2981
2982		/**
2983		* thenCompose result completes exceptionally if action does
2984		*/
2985	<	public void testThenCompose3() {
2986	<	CompletableFuture<Integer> f, g;
2987	<	FailingCompletableFutureFunction r;
2988	<
2989	<	f = new CompletableFuture<>();
2990	<	g = f.thenCompose(r = new FailingCompletableFutureFunction());
2991	<	f.complete(one);
2992	<	checkCompletedWithWrappedCFException(g);
2993	<
2994	<	f = new CompletableFuture<>();
2995	<	f.complete(one);
2996	<	g = f.thenCompose(r = new FailingCompletableFutureFunction());
2997	<	checkCompletedWithWrappedCFException(g);
2998	<	}
2985	>	public void testThenCompose_actionFailed() {
2986	>	for (ExecutionMode m : ExecutionMode.values())
2987	>	for (boolean createIncomplete : new boolean[] { true, false })
2988	>	for (Integer v1 : new Integer[] { 1, null })
2989	>	{
2990	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2991	>	final FailingCompletableFutureFunction r
2992	>	= new FailingCompletableFutureFunction(m);
2993	>	if (!createIncomplete) assertTrue(f.complete(v1));
2994	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
2995	>	if (createIncomplete) assertTrue(f.complete(v1));
2996	>
2997	>	checkCompletedWithWrappedException(g, r.ex);
2998	>	checkCompletedNormally(f, v1);
2999	>	}}
3000
3001		/**
3002		* thenCompose result completes exceptionally if source cancelled
3003		*/
3004	<	public void testThenCompose4() {
3005	<	CompletableFuture<Integer> f, g;
3006	<	CompletableFutureInc r;
3007	<
3008	<	f = new CompletableFuture<>();
3009	<	g = f.thenCompose(r = new CompletableFutureInc());
3010	<	assertTrue(f.cancel(true));
3011	<	checkCompletedWithWrappedCancellationException(g);
3004	>	public void testThenCompose_sourceCancelled() {
3005	>	for (ExecutionMode m : ExecutionMode.values())
3006	>	for (boolean createIncomplete : new boolean[] { true, false })
3007	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3008	>	{
3009	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3010	>	final CompletableFutureInc r = new CompletableFutureInc(m);
3011	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3012	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3013	>	if (createIncomplete) {
3014	>	checkIncomplete(g);
3015	>	assertTrue(f.cancel(mayInterruptIfRunning));
3016	>	}
3017
1313	–	f = new CompletableFuture<>();
1314	–	assertTrue(f.cancel(true));
1315	–	g = f.thenCompose(r = new CompletableFutureInc());
3018		checkCompletedWithWrappedCancellationException(g);
3019	<	}
3020	<
1319	<	// asyncs
3019	>	checkCancelled(f);
3020	>	}}
3021
3022		/**
3023	<	* thenRunAsync result completes normally after normal completion of source
3023	>	* thenCompose result completes exceptionally if the result of the action does
3024		*/
3025	<	public void testThenRunAsync() {
3026	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3027	<	Noop r = new Noop();
3028	<	CompletableFuture<Void> g = f.thenRunAsync(r);
3029	<	f.complete(null);
3030	<	checkCompletedNormally(g, null);
3031	<
3032	<	// reordered version
3033	<	f = new CompletableFuture<>();
3034	<	f.complete(null);
3035	<	r = new Noop();
3036	<	g = f.thenRunAsync(r);
3037	<	checkCompletedNormally(g, null);
3038	<	}
3025	>	public void testThenCompose_actionReturnsFailingFuture() {
3026	>	for (ExecutionMode m : ExecutionMode.values())
3027	>	for (int order = 0; order < 6; order++)
3028	>	for (Integer v1 : new Integer[] { 1, null })
3029	>	{
3030	>	final CFException ex = new CFException();
3031	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3032	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
3033	>	final CompletableFuture<Integer> h;
3034	>	// Test all permutations of orders
3035	>	switch (order) {
3036	>	case 0:
3037	>	assertTrue(f.complete(v1));
3038	>	assertTrue(g.completeExceptionally(ex));
3039	>	h = m.thenCompose(f, (x -> g));
3040	>	break;
3041	>	case 1:
3042	>	assertTrue(f.complete(v1));
3043	>	h = m.thenCompose(f, (x -> g));
3044	>	assertTrue(g.completeExceptionally(ex));
3045	>	break;
3046	>	case 2:
3047	>	assertTrue(g.completeExceptionally(ex));
3048	>	assertTrue(f.complete(v1));
3049	>	h = m.thenCompose(f, (x -> g));
3050	>	break;
3051	>	case 3:
3052	>	assertTrue(g.completeExceptionally(ex));
3053	>	h = m.thenCompose(f, (x -> g));
3054	>	assertTrue(f.complete(v1));
3055	>	break;
3056	>	case 4:
3057	>	h = m.thenCompose(f, (x -> g));
3058	>	assertTrue(f.complete(v1));
3059	>	assertTrue(g.completeExceptionally(ex));
3060	>	break;
3061	>	case 5:
3062	>	h = m.thenCompose(f, (x -> g));
3063	>	assertTrue(f.complete(v1));
3064	>	assertTrue(g.completeExceptionally(ex));
3065	>	break;
3066	>	default: throw new AssertionError();
3067	>	}
3068
3069	<	/**
3070	<	* thenRunAsync result completes exceptionally after exceptional
3071	<	* completion of source
3072	<	*/
1343	<	public void testThenRunAsync2() {
1344	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1345	<	Noop r = new Noop();
1346	<	CompletableFuture<Void> g = f.thenRunAsync(r);
1347	<	f.completeExceptionally(new CFException());
1348	<	try {
1349	<	g.join();
1350	<	shouldThrow();
1351	<	} catch (CompletionException success) {}
1352	<	checkCompletedWithWrappedCFException(g);
1353	<	}
3069	>	checkCompletedExceptionally(g, ex);
3070	>	checkCompletedWithWrappedException(h, ex);
3071	>	checkCompletedNormally(f, v1);
3072	>	}}
3073
3074	<	/**
1356	<	* thenRunAsync result completes exceptionally if action does
1357	<	*/
1358	<	public void testThenRunAsync3() {
1359	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1360	<	FailingNoop r = new FailingNoop();
1361	<	CompletableFuture<Void> g = f.thenRunAsync(r);
1362	<	f.complete(null);
1363	<	checkCompletedWithWrappedCFException(g);
1364	<	}
3074	>	// other static methods
3075
3076		/**
3077	<	* thenRunAsync result completes exceptionally if source cancelled
3077	>	* allOf(no component futures) returns a future completed normally
3078	>	* with the value null
3079		*/
3080	<	public void testThenRunAsync4() {
3081	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3082	<	Noop r = new Noop();
1372	<	CompletableFuture<Void> g = f.thenRunAsync(r);
1373	<	assertTrue(f.cancel(true));
1374	<	checkCompletedWithWrappedCancellationException(g);
3080	>	public void testAllOf_empty() throws Exception {
3081	>	CompletableFuture<Void> f = CompletableFuture.allOf();
3082	>	checkCompletedNormally(f, null);
3083		}
3084
3085		/**
3086	<	* thenApplyAsync result completes normally after normal completion of source
3086	>	* allOf returns a future completed normally with the value null
3087	>	* when all components complete normally
3088		*/
3089	<	public void testThenApplyAsync() {
3090	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3091	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
3092	<	f.complete(one);
3093	<	checkCompletedNormally(g, two);
3089	>	public void testAllOf_normal() throws Exception {
3090	>	for (int k = 1; k < 10; k++) {
3091	>	CompletableFuture<Integer>[] fs
3092	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3093	>	for (int i = 0; i < k; i++)
3094	>	fs[i] = new CompletableFuture<>();
3095	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3096	>	for (int i = 0; i < k; i++) {
3097	>	checkIncomplete(f);
3098	>	checkIncomplete(CompletableFuture.allOf(fs));
3099	>	fs[i].complete(one);
3100	>	}
3101	>	checkCompletedNormally(f, null);
3102	>	checkCompletedNormally(CompletableFuture.allOf(fs), null);
3103	>	}
3104		}
3105
3106	<	/**
3107	<	* thenApplyAsync result completes exceptionally after exceptional
3108	<	* completion of source
3109	<	*/
3110	<	public void testThenApplyAsync2() {
3111	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3112	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
3113	<	f.completeExceptionally(new CFException());
3114	<	checkCompletedWithWrappedCFException(g);
3106	>	public void testAllOf_normal_backwards() throws Exception {
3107	>	for (int k = 1; k < 10; k++) {
3108	>	CompletableFuture<Integer>[] fs
3109	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3110	>	for (int i = 0; i < k; i++)
3111	>	fs[i] = new CompletableFuture<>();
3112	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3113	>	for (int i = k - 1; i >= 0; i--) {
3114	>	checkIncomplete(f);
3115	>	checkIncomplete(CompletableFuture.allOf(fs));
3116	>	fs[i].complete(one);
3117	>	}
3118	>	checkCompletedNormally(f, null);
3119	>	checkCompletedNormally(CompletableFuture.allOf(fs), null);
3120	>	}
3121		}
3122
3123	<	/**
3124	<	* thenApplyAsync result completes exceptionally if action does
3125	<	*/
3126	<	public void testThenApplyAsync3() {
3127	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3128	<	FailingFunction r = new FailingFunction();
3129	<	CompletableFuture<Integer> g = f.thenApplyAsync(r);
3130	<	f.complete(null);
3131	<	checkCompletedWithWrappedCFException(g);
3123	>	public void testAllOf_exceptional() throws Exception {
3124	>	for (int k = 1; k < 10; k++) {
3125	>	CompletableFuture<Integer>[] fs
3126	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3127	>	CFException ex = new CFException();
3128	>	for (int i = 0; i < k; i++)
3129	>	fs[i] = new CompletableFuture<>();
3130	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3131	>	for (int i = 0; i < k; i++) {
3132	>	checkIncomplete(f);
3133	>	checkIncomplete(CompletableFuture.allOf(fs));
3134	>	if (i != k / 2) {
3135	>	fs[i].complete(i);
3136	>	checkCompletedNormally(fs[i], i);
3137	>	} else {
3138	>	fs[i].completeExceptionally(ex);
3139	>	checkCompletedExceptionally(fs[i], ex);
3140	>	}
3141	>	}
3142	>	checkCompletedWithWrappedException(f, ex);
3143	>	checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3144	>	}
3145		}
3146
3147		/**
3148	<	* thenApplyAsync result completes exceptionally if source cancelled
3148	>	* anyOf(no component futures) returns an incomplete future
3149		*/
3150	<	public void testThenApplyAsync4() {
3151	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3152	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
3153	<	assertTrue(f.cancel(true));
3154	<	checkCompletedWithWrappedCancellationException(g);
1417	<	}
3150	>	public void testAnyOf_empty() throws Exception {
3151	>	for (Integer v1 : new Integer[] { 1, null })
3152	>	{
3153	>	CompletableFuture<Object> f = CompletableFuture.anyOf();
3154	>	checkIncomplete(f);
3155
3156	<	/**
3157	<	* thenAcceptAsync result completes normally after normal
3158	<	* completion of source
1422	<	*/
1423	<	public void testThenAcceptAsync() {
1424	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1425	<	IncAction r = new IncAction();
1426	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
1427	<	f.complete(one);
1428	<	checkCompletedNormally(g, null);
1429	<	assertEquals(r.value, 2);
1430	<	}
3156	>	f.complete(v1);
3157	>	checkCompletedNormally(f, v1);
3158	>	}}
3159
3160		/**
3161	<	* thenAcceptAsync result completes exceptionally after exceptional
3162	<	* completion of source
3161	>	* anyOf returns a future completed normally with a value when
3162	>	* a component future does
3163		*/
3164	<	public void testThenAcceptAsync2() {
3165	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3166	<	IncAction r = new IncAction();
3167	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
3168	<	f.completeExceptionally(new CFException());
3169	<	checkCompletedWithWrappedCFException(g);
3164	>	public void testAnyOf_normal() throws Exception {
3165	>	for (int k = 0; k < 10; k++) {
3166	>	CompletableFuture[] fs = new CompletableFuture[k];
3167	>	for (int i = 0; i < k; i++)
3168	>	fs[i] = new CompletableFuture<>();
3169	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3170	>	checkIncomplete(f);
3171	>	for (int i = 0; i < k; i++) {
3172	>	fs[i].complete(i);
3173	>	checkCompletedNormally(f, 0);
3174	>	int x = (int) CompletableFuture.anyOf(fs).join();
3175	>	assertTrue(0 <= x && x <= i);
3176	>	}
3177	>	}
3178		}
3179	<
3180	<	/**
3181	<	* thenAcceptAsync result completes exceptionally if action does
3182	<	*/
3183	<	public void testThenAcceptAsync3() {
3184	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3185	<	FailingConsumer r = new FailingConsumer();
3186	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
3187	<	f.complete(null);
3188	<	checkCompletedWithWrappedCFException(g);
3179	>	public void testAnyOf_normal_backwards() throws Exception {
3180	>	for (int k = 0; k < 10; k++) {
3181	>	CompletableFuture[] fs = new CompletableFuture[k];
3182	>	for (int i = 0; i < k; i++)
3183	>	fs[i] = new CompletableFuture<>();
3184	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3185	>	checkIncomplete(f);
3186	>	for (int i = k - 1; i >= 0; i--) {
3187	>	fs[i].complete(i);
3188	>	checkCompletedNormally(f, k - 1);
3189	>	int x = (int) CompletableFuture.anyOf(fs).join();
3190	>	assertTrue(i <= x && x <= k - 1);
3191	>	}
3192	>	}
3193		}
3194
3195		/**
3196	<	* thenAcceptAsync result completes exceptionally if source cancelled
3196	>	* anyOf result completes exceptionally when any component does.
3197		*/
3198	<	public void testThenAcceptAsync4() {
3199	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3200	<	IncAction r = new IncAction();
3201	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
3202	<	assertTrue(f.cancel(true));
3203	<	checkCompletedWithWrappedCancellationException(g);
3198	>	public void testAnyOf_exceptional() throws Exception {
3199	>	for (int k = 0; k < 10; k++) {
3200	>	CompletableFuture[] fs = new CompletableFuture[k];
3201	>	CFException[] exs = new CFException[k];
3202	>	for (int i = 0; i < k; i++) {
3203	>	fs[i] = new CompletableFuture<>();
3204	>	exs[i] = new CFException();
3205	>	}
3206	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3207	>	checkIncomplete(f);
3208	>	for (int i = 0; i < k; i++) {
3209	>	fs[i].completeExceptionally(exs[i]);
3210	>	checkCompletedWithWrappedException(f, exs[0]);
3211	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3212	>	}
3213	>	}
3214		}
3215
3216	<	/**
3217	<	* thenCombineAsync result completes normally after normal
3218	<	* completion of sources
3219	<	*/
3220	<	public void testThenCombineAsync() {
3221	<	CompletableFuture<Integer> f, g, h;
3222	<
3223	<	f = new CompletableFuture<>();
3224	<	g = new CompletableFuture<>();
3225	<	h = f.thenCombineAsync(g, subtract);
3226	<	f.complete(3);
3227	<	checkIncomplete(h);
3228	<	g.complete(1);
3229	<	checkCompletedNormally(h, 2);
3230	<
3231	<	f = new CompletableFuture<>();
1482	<	g = new CompletableFuture<>();
1483	<	h = f.thenCombineAsync(g, subtract);
1484	<	g.complete(1);
1485	<	checkIncomplete(h);
1486	<	f.complete(3);
1487	<	checkCompletedNormally(h, 2);
1488	<
1489	<	f = new CompletableFuture<>();
1490	<	g = new CompletableFuture<>();
1491	<	g.complete(1);
1492	<	f.complete(3);
1493	<	h = f.thenCombineAsync(g, subtract);
1494	<	checkCompletedNormally(h, 2);
3216	>	public void testAnyOf_exceptional_backwards() throws Exception {
3217	>	for (int k = 0; k < 10; k++) {
3218	>	CompletableFuture[] fs = new CompletableFuture[k];
3219	>	CFException[] exs = new CFException[k];
3220	>	for (int i = 0; i < k; i++) {
3221	>	fs[i] = new CompletableFuture<>();
3222	>	exs[i] = new CFException();
3223	>	}
3224	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3225	>	checkIncomplete(f);
3226	>	for (int i = k - 1; i >= 0; i--) {
3227	>	fs[i].completeExceptionally(exs[i]);
3228	>	checkCompletedWithWrappedException(f, exs[k - 1]);
3229	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3230	>	}
3231	>	}
3232		}
3233
3234		/**
3235	<	* thenCombineAsync result completes exceptionally after exceptional
1499	<	* completion of either source
3235	>	* Completion methods throw NullPointerException with null arguments
3236		*/
3237	<	public void testThenCombineAsync2() {
3238	<	CompletableFuture<Integer> f, g, h;
3237	>	@SuppressWarnings("FutureReturnValueIgnored")
3238	>	public void testNPE() {
3239	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3240	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3241	>	CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
3242	>	ThreadExecutor exec = new ThreadExecutor();
3243
3244	<	f = new CompletableFuture<>();
3245	<	g = new CompletableFuture<>();
3246	<	h = f.thenCombineAsync(g, subtract);
3247	<	f.completeExceptionally(new CFException());
3248	<	checkIncomplete(h);
3249	<	g.complete(1);
3250	<	checkCompletedWithWrappedCFException(h);
3244	>	Runnable[] throwingActions = {
3245	>	() -> CompletableFuture.supplyAsync(null),
3246	>	() -> CompletableFuture.supplyAsync(null, exec),
3247	>	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3248	>
3249	>	() -> CompletableFuture.runAsync(null),
3250	>	() -> CompletableFuture.runAsync(null, exec),
3251	>	() -> CompletableFuture.runAsync(() -> {}, null),
3252	>
3253	>	() -> f.completeExceptionally(null),
3254	>
3255	>	() -> f.thenApply(null),
3256	>	() -> f.thenApplyAsync(null),
3257	>	() -> f.thenApplyAsync(x -> x, null),
3258	>	() -> f.thenApplyAsync(null, exec),
3259	>
3260	>	() -> f.thenAccept(null),
3261	>	() -> f.thenAcceptAsync(null),
3262	>	() -> f.thenAcceptAsync(x -> {} , null),
3263	>	() -> f.thenAcceptAsync(null, exec),
3264	>
3265	>	() -> f.thenRun(null),
3266	>	() -> f.thenRunAsync(null),
3267	>	() -> f.thenRunAsync(() -> {} , null),
3268	>	() -> f.thenRunAsync(null, exec),
3269	>
3270	>	() -> f.thenCombine(g, null),
3271	>	() -> f.thenCombineAsync(g, null),
3272	>	() -> f.thenCombineAsync(g, null, exec),
3273	>	() -> f.thenCombine(nullFuture, (x, y) -> x),
3274	>	() -> f.thenCombineAsync(nullFuture, (x, y) -> x),
3275	>	() -> f.thenCombineAsync(nullFuture, (x, y) -> x, exec),
3276	>	() -> f.thenCombineAsync(g, (x, y) -> x, null),
3277	>
3278	>	() -> f.thenAcceptBoth(g, null),
3279	>	() -> f.thenAcceptBothAsync(g, null),
3280	>	() -> f.thenAcceptBothAsync(g, null, exec),
3281	>	() -> f.thenAcceptBoth(nullFuture, (x, y) -> {}),
3282	>	() -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}),
3283	>	() -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}, exec),
3284	>	() -> f.thenAcceptBothAsync(g, (x, y) -> {}, null),
3285	>
3286	>	() -> f.runAfterBoth(g, null),
3287	>	() -> f.runAfterBothAsync(g, null),
3288	>	() -> f.runAfterBothAsync(g, null, exec),
3289	>	() -> f.runAfterBoth(nullFuture, () -> {}),
3290	>	() -> f.runAfterBothAsync(nullFuture, () -> {}),
3291	>	() -> f.runAfterBothAsync(nullFuture, () -> {}, exec),
3292	>	() -> f.runAfterBothAsync(g, () -> {}, null),
3293	>
3294	>	() -> f.applyToEither(g, null),
3295	>	() -> f.applyToEitherAsync(g, null),
3296	>	() -> f.applyToEitherAsync(g, null, exec),
3297	>	() -> f.applyToEither(nullFuture, x -> x),
3298	>	() -> f.applyToEitherAsync(nullFuture, x -> x),
3299	>	() -> f.applyToEitherAsync(nullFuture, x -> x, exec),
3300	>	() -> f.applyToEitherAsync(g, x -> x, null),
3301	>
3302	>	() -> f.acceptEither(g, null),
3303	>	() -> f.acceptEitherAsync(g, null),
3304	>	() -> f.acceptEitherAsync(g, null, exec),
3305	>	() -> f.acceptEither(nullFuture, x -> {}),
3306	>	() -> f.acceptEitherAsync(nullFuture, x -> {}),
3307	>	() -> f.acceptEitherAsync(nullFuture, x -> {}, exec),
3308	>	() -> f.acceptEitherAsync(g, x -> {}, null),
3309	>
3310	>	() -> f.runAfterEither(g, null),
3311	>	() -> f.runAfterEitherAsync(g, null),
3312	>	() -> f.runAfterEitherAsync(g, null, exec),
3313	>	() -> f.runAfterEither(nullFuture, () -> {}),
3314	>	() -> f.runAfterEitherAsync(nullFuture, () -> {}),
3315	>	() -> f.runAfterEitherAsync(nullFuture, () -> {}, exec),
3316	>	() -> f.runAfterEitherAsync(g, () -> {}, null),
3317	>
3318	>	() -> f.thenCompose(null),
3319	>	() -> f.thenComposeAsync(null),
3320	>	() -> f.thenComposeAsync(new CompletableFutureInc(ExecutionMode.EXECUTOR), null),
3321	>	() -> f.thenComposeAsync(null, exec),
3322	>
3323	>	() -> f.exceptionally(null),
3324	>
3325	>	() -> f.handle(null),
3326	>
3327	>	() -> CompletableFuture.allOf((CompletableFuture<?>)null),
3328	>	() -> CompletableFuture.allOf((CompletableFuture<?>[])null),
3329	>	() -> CompletableFuture.allOf(f, null),
3330	>	() -> CompletableFuture.allOf(null, f),
3331	>
3332	>	() -> CompletableFuture.anyOf((CompletableFuture<?>)null),
3333	>	() -> CompletableFuture.anyOf((CompletableFuture<?>[])null),
3334	>	() -> CompletableFuture.anyOf(f, null),
3335	>	() -> CompletableFuture.anyOf(null, f),
3336	>
3337	>	() -> f.obtrudeException(null),
3338	>
3339	>	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3340	>	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3341	>	() -> CompletableFuture.delayedExecutor(1L, null),
3342
3343	<	f = new CompletableFuture<>();
3344	<	g = new CompletableFuture<>();
1514	<	h = f.thenCombineAsync(g, subtract);
1515	<	g.completeExceptionally(new CFException());
1516	<	checkIncomplete(h);
1517	<	f.complete(3);
1518	<	checkCompletedWithWrappedCFException(h);
3343	>	() -> f.orTimeout(1L, null),
3344	>	() -> f.completeOnTimeout(42, 1L, null),
3345
3346	<	f = new CompletableFuture<>();
3347	<	g = new CompletableFuture<>();
3348	<	g.completeExceptionally(new CFException());
1523	<	f.complete(3);
1524	<	h = f.thenCombineAsync(g, subtract);
1525	<	checkCompletedWithWrappedCFException(h);
1526	<	}
3346	>	() -> CompletableFuture.failedFuture(null),
3347	>	() -> CompletableFuture.failedStage(null),
3348	>	};
3349
3350	<	/**
3351	<	* thenCombineAsync result completes exceptionally if action does
1530	<	*/
1531	<	public void testThenCombineAsync3() {
1532	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1533	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1534	<	FailingBiFunction r = new FailingBiFunction();
1535	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, r);
1536	<	f.complete(one);
1537	<	checkIncomplete(g);
1538	<	assertFalse(r.ran);
1539	<	f2.complete(two);
1540	<	checkCompletedWithWrappedCFException(g);
1541	<	assertTrue(r.ran);
3350	>	assertThrows(NullPointerException.class, throwingActions);
3351	>	assertEquals(0, exec.count.get());
3352		}
3353
3354		/**
3355	<	* thenCombineAsync result completes exceptionally if either source cancelled
3355	>	* Test submissions to an executor that rejects all tasks.
3356		*/
3357	<	public void testThenCombineAsync4() {
3358	<	CompletableFuture<Integer> f, g, h;
3357	>	public void testRejectingExecutor() {
3358	>	for (Integer v : new Integer[] { 1, null })
3359	>	{
3360	>	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3361	>
3362	>	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3363	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3364	>
3365	>	List<CompletableFuture<?>> futures = new ArrayList<>();
3366	>
3367	>	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3368	>	srcs.add(complete);
3369	>	srcs.add(incomplete);
3370	>
3371	>	for (CompletableFuture<Integer> src : srcs) {
3372	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3373	>	fs.add(src.thenRunAsync(() -> {}, e));
3374	>	fs.add(src.thenAcceptAsync(z -> {}, e));
3375	>	fs.add(src.thenApplyAsync(z -> z, e));
3376	>
3377	>	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3378	>	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3379	>	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3380	>
3381	>	fs.add(src.applyToEitherAsync(src, z -> z, e));
3382	>	fs.add(src.acceptEitherAsync(src, z -> {}, e));
3383	>	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3384	>
3385	>	fs.add(src.thenComposeAsync(z -> null, e));
3386	>	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3387	>	fs.add(src.handleAsync((z, t) -> null, e));
3388	>
3389	>	for (CompletableFuture<?> future : fs) {
3390	>	if (src.isDone())
3391	>	checkCompletedWithWrappedException(future, e.ex);
3392	>	else
3393	>	checkIncomplete(future);
3394	>	}
3395	>	futures.addAll(fs);
3396	>	}
3397
3398	<	f = new CompletableFuture<>();
3399	<	g = new CompletableFuture<>();
1552	<	h = f.thenCombineAsync(g, subtract);
1553	<	assertTrue(f.cancel(true));
1554	<	checkIncomplete(h);
1555	<	g.complete(1);
1556	<	checkCompletedWithWrappedCancellationException(h);
3398	>	{
3399	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3400
3401	<	f = new CompletableFuture<>();
3402	<	g = new CompletableFuture<>();
1560	<	h = f.thenCombineAsync(g, subtract);
1561	<	assertTrue(g.cancel(true));
1562	<	checkIncomplete(h);
1563	<	f.complete(3);
1564	<	checkCompletedWithWrappedCancellationException(h);
3401	>	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3402	>	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3403
3404	<	f = new CompletableFuture<>();
3405	<	g = new CompletableFuture<>();
1568	<	g.complete(3);
1569	<	assertTrue(f.cancel(true));
1570	<	h = f.thenCombineAsync(g, subtract);
1571	<	checkCompletedWithWrappedCancellationException(h);
3404	>	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3405	>	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3406
3407	<	f = new CompletableFuture<>();
3408	<	g = new CompletableFuture<>();
1575	<	f.complete(3);
1576	<	assertTrue(g.cancel(true));
1577	<	h = f.thenCombineAsync(g, subtract);
1578	<	checkCompletedWithWrappedCancellationException(h);
1579	<	}
3407	>	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3408	>	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3409
3410	<	/**
3411	<	* thenAcceptBothAsync result completes normally after normal
3412	<	* completion of sources
3413	<	*/
1585	<	public void testThenAcceptBothAsync() {
1586	<	CompletableFuture<Integer> f, g;
1587	<	CompletableFuture<Void> h;
1588	<	SubtractAction r;
3410	>	for (CompletableFuture<?> future : fs)
3411	>	checkIncomplete(future);
3412	>	futures.addAll(fs);
3413	>	}
3414
3415	<	f = new CompletableFuture<>();
3416	<	g = new CompletableFuture<>();
1592	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1593	<	f.complete(3);
1594	<	checkIncomplete(h);
1595	<	g.complete(1);
1596	<	checkCompletedNormally(h, null);
1597	<	assertEquals(r.value, 2);
3415	>	{
3416	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3417
3418	<	f = new CompletableFuture<>();
3419	<	g = new CompletableFuture<>();
1601	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1602	<	g.complete(1);
1603	<	checkIncomplete(h);
1604	<	f.complete(3);
1605	<	checkCompletedNormally(h, null);
1606	<	assertEquals(r.value, 2);
3418	>	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3419	>	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3420
3421	<	f = new CompletableFuture<>();
3422	<	g = new CompletableFuture<>();
1610	<	g.complete(1);
1611	<	f.complete(3);
1612	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1613	<	checkCompletedNormally(h, null);
1614	<	assertEquals(r.value, 2);
1615	<	}
3421	>	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3422	>	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3423
3424	<	/**
3425	<	* thenAcceptBothAsync result completes exceptionally after exceptional
1619	<	* completion of source
1620	<	*/
1621	<	public void testThenAcceptBothAsync2() {
1622	<	CompletableFuture<Integer> f, g;
1623	<	CompletableFuture<Void> h;
1624	<	SubtractAction r;
3424	>	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3425	>	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3426
3427	<	f = new CompletableFuture<>();
3428	<	g = new CompletableFuture<>();
3429	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
3430	<	f.completeExceptionally(new CFException());
1630	<	checkIncomplete(h);
1631	<	g.complete(1);
1632	<	checkCompletedWithWrappedCFException(h);
3427	>	for (CompletableFuture<?> future : fs)
3428	>	checkCompletedWithWrappedException(future, e.ex);
3429	>	futures.addAll(fs);
3430	>	}
3431
3432	<	f = new CompletableFuture<>();
1635	<	g = new CompletableFuture<>();
1636	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1637	<	g.completeExceptionally(new CFException());
1638	<	checkIncomplete(h);
1639	<	f.complete(3);
1640	<	checkCompletedWithWrappedCFException(h);
3432	>	incomplete.complete(v);
3433
3434	<	f = new CompletableFuture<>();
3435	<	g = new CompletableFuture<>();
1644	<	f.complete(3);
1645	<	g.completeExceptionally(new CFException());
1646	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1647	<	checkCompletedWithWrappedCFException(h);
3434	>	for (CompletableFuture<?> future : futures)
3435	>	checkCompletedWithWrappedException(future, e.ex);
3436
3437	<	f = new CompletableFuture<>();
3438	<	g = new CompletableFuture<>();
1651	<	f.completeExceptionally(new CFException());
1652	<	g.complete(3);
1653	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1654	<	checkCompletedWithWrappedCFException(h);
1655	<	}
3437	>	assertEquals(futures.size(), e.count.get());
3438	>	}}
3439
3440		/**
3441	<	* thenAcceptBothAsync result completes exceptionally if action does
3441	>	* Test submissions to an executor that rejects all tasks, but
3442	>	* should never be invoked because the dependent future is
3443	>	* explicitly completed.
3444		*/
3445	<	public void testThenAcceptBothAsync3() {
3446	<	CompletableFuture<Integer> f, g;
3447	<	CompletableFuture<Void> h;
3448	<	FailingBiConsumer r;
3445	>	public void testRejectingExecutorNeverInvoked() {
3446	>	for (Integer v : new Integer[] { 1, null })
3447	>	{
3448	>	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3449
3450	<	f = new CompletableFuture<>();
3451	<	g = new CompletableFuture<>();
1667	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer());
1668	<	f.complete(3);
1669	<	checkIncomplete(h);
1670	<	g.complete(1);
1671	<	checkCompletedWithWrappedCFException(h);
3450	>	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3451	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3452
3453	<	f = new CompletableFuture<>();
1674	<	g = new CompletableFuture<>();
1675	<	f.complete(3);
1676	<	g.complete(1);
1677	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer());
1678	<	checkCompletedWithWrappedCFException(h);
1679	<	}
3453	>	List<CompletableFuture<?>> futures = new ArrayList<>();
3454
3455	<	/**
3456	<	* thenAcceptBothAsync result completes exceptionally if either source cancelled
3457	<	*/
1684	<	public void testThenAcceptBothAsync4() {
1685	<	CompletableFuture<Integer> f, g;
1686	<	CompletableFuture<Void> h;
1687	<	SubtractAction r;
3455	>	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3456	>	srcs.add(complete);
3457	>	srcs.add(incomplete);
3458
3459	<	f = new CompletableFuture<>();
3460	<	g = new CompletableFuture<>();
3461	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
3462	<	assertTrue(f.cancel(true));
1693	<	checkIncomplete(h);
1694	<	g.complete(1);
1695	<	checkCompletedWithWrappedCancellationException(h);
3459	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3460	>	fs.add(incomplete.thenRunAsync(() -> {}, e));
3461	>	fs.add(incomplete.thenAcceptAsync(z -> {}, e));
3462	>	fs.add(incomplete.thenApplyAsync(z -> z, e));
3463
3464	<	f = new CompletableFuture<>();
3465	<	g = new CompletableFuture<>();
3466	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1700	<	assertTrue(g.cancel(true));
1701	<	checkIncomplete(h);
1702	<	f.complete(3);
1703	<	checkCompletedWithWrappedCancellationException(h);
3464	>	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3465	>	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3466	>	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3467
3468	<	f = new CompletableFuture<>();
3469	<	g = new CompletableFuture<>();
3470	<	f.complete(3);
1708	<	assertTrue(g.cancel(true));
1709	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1710	<	checkCompletedWithWrappedCancellationException(h);
3468	>	fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e));
3469	>	fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e));
3470	>	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3471
3472	<	f = new CompletableFuture<>();
3473	<	g = new CompletableFuture<>();
3474	<	assertTrue(f.cancel(true));
1715	<	g.complete(3);
1716	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1717	<	checkCompletedWithWrappedCancellationException(h);
1718	<	}
3472	>	fs.add(incomplete.thenComposeAsync(z -> null, e));
3473	>	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3474	>	fs.add(incomplete.handleAsync((z, t) -> null, e));
3475
3476	<	/**
3477	<	* runAfterBothAsync result completes normally after normal
1722	<	* completion of sources
1723	<	*/
1724	<	public void testRunAfterBothAsync() {
1725	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1726	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1727	<	Noop r = new Noop();
1728	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1729	<	f.complete(one);
1730	<	checkIncomplete(g);
1731	<	f2.complete(two);
1732	<	checkCompletedNormally(g, null);
1733	<	assertTrue(r.ran);
1734	<	}
3476	>	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3477	>	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3478
3479	<	/**
3480	<	* runAfterBothAsync result completes exceptionally after exceptional
1738	<	* completion of source
1739	<	*/
1740	<	public void testRunAfterBothAsync2() {
1741	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1742	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1743	<	Noop r = new Noop();
1744	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1745	<	f.completeExceptionally(new CFException());
1746	<	f2.complete(two);
1747	<	checkCompletedWithWrappedCFException(g);
3479	>	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3480	>	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3481
3482	<	r = new Noop();
3483	<	f = new CompletableFuture<>();
1751	<	f2 = new CompletableFuture<>();
1752	<	g = f.runAfterBothAsync(f2, r);
1753	<	f.complete(one);
1754	<	f2.completeExceptionally(new CFException());
1755	<	checkCompletedWithWrappedCFException(g);
1756	<	}
3482	>	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3483	>	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3484
3485	<	/**
3486	<	* runAfterBothAsync result completes exceptionally if action does
1760	<	*/
1761	<	public void testRunAfterBothAsync3() {
1762	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1763	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1764	<	FailingNoop r = new FailingNoop();
1765	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1766	<	f.complete(one);
1767	<	checkIncomplete(g);
1768	<	f2.complete(two);
1769	<	checkCompletedWithWrappedCFException(g);
1770	<	}
3485	>	for (CompletableFuture<?> future : fs)
3486	>	checkIncomplete(future);
3487
3488	<	/**
3489	<	* runAfterBothAsync result completes exceptionally if either source cancelled
1774	<	*/
1775	<	public void testRunAfterBothAsync4() {
1776	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1777	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1778	<	Noop r = new Noop();
1779	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1780	<	assertTrue(f.cancel(true));
1781	<	f2.complete(two);
1782	<	checkCompletedWithWrappedCancellationException(g);
3488	>	for (CompletableFuture<?> future : fs)
3489	>	future.complete(null);
3490
3491	<	r = new Noop();
1785	<	f = new CompletableFuture<>();
1786	<	f2 = new CompletableFuture<>();
1787	<	g = f.runAfterBothAsync(f2, r);
1788	<	f.complete(one);
1789	<	assertTrue(f2.cancel(true));
1790	<	checkCompletedWithWrappedCancellationException(g);
1791	<	}
3491	>	incomplete.complete(v);
3492
3493	<	/**
3494	<	* applyToEitherAsync result completes normally after normal
1795	<	* completion of sources
1796	<	*/
1797	<	public void testApplyToEitherAsync() {
1798	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1799	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1800	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
1801	<	f.complete(one);
1802	<	checkCompletedNormally(g, two);
3493	>	for (CompletableFuture<?> future : fs)
3494	>	checkCompletedNormally(future, null);
3495
3496	<	f = new CompletableFuture<>();
3497	<	f.complete(one);
1806	<	f2 = new CompletableFuture<>();
1807	<	g = f.applyToEitherAsync(f2, inc);
1808	<	checkCompletedNormally(g, two);
1809	<	}
3496	>	assertEquals(0, e.count.get());
3497	>	}}
3498
3499		/**
3500	<	* applyToEitherAsync result completes exceptionally after exceptional
1813	<	* completion of source
3500	>	* toCompletableFuture returns this CompletableFuture.
3501		*/
3502	<	public void testApplyToEitherAsync2() {
3502	>	public void testToCompletableFuture() {
3503		CompletableFuture<Integer> f = new CompletableFuture<>();
3504	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1818	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
1819	<	f.completeExceptionally(new CFException());
1820	<	checkCompletedWithWrappedCFException(g);
1821	<
1822	<	f = new CompletableFuture<>();
1823	<	f2 = new CompletableFuture<>();
1824	<	f2.completeExceptionally(new CFException());
1825	<	g = f.applyToEitherAsync(f2, inc);
1826	<	f.complete(one);
1827	<	checkCompletedWithWrappedCFException(g);
3504	>	assertSame(f, f.toCompletableFuture());
3505		}
3506
3507	<	/**
1831	<	* applyToEitherAsync result completes exceptionally if action does
1832	<	*/
1833	<	public void testApplyToEitherAsync3() {
1834	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1835	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1836	<	FailingFunction r = new FailingFunction();
1837	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r);
1838	<	f.complete(one);
1839	<	checkCompletedWithWrappedCFException(g);
1840	<	}
3507	>	// jdk9
3508
3509		/**
3510	<	* applyToEitherAsync result completes exceptionally if either source cancelled
3510	>	* newIncompleteFuture returns an incomplete CompletableFuture
3511		*/
3512	<	public void testApplyToEitherAsync4() {
3512	>	public void testNewIncompleteFuture() {
3513	>	for (Integer v1 : new Integer[] { 1, null })
3514	>	{
3515		CompletableFuture<Integer> f = new CompletableFuture<>();
3516	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3517	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
3518	<	assertTrue(f.cancel(true));
3519	<	checkCompletedWithWrappedCancellationException(g);
3520	<
3521	<	f = new CompletableFuture<>();
3522	<	f2 = new CompletableFuture<>();
3523	<	assertTrue(f2.cancel(true));
3524	<	g = f.applyToEitherAsync(f2, inc);
3525	<	checkCompletedWithWrappedCancellationException(g);
1857	<	}
3516	>	CompletableFuture<Integer> g = f.newIncompleteFuture();
3517	>	checkIncomplete(f);
3518	>	checkIncomplete(g);
3519	>	f.complete(v1);
3520	>	checkCompletedNormally(f, v1);
3521	>	checkIncomplete(g);
3522	>	g.complete(v1);
3523	>	checkCompletedNormally(g, v1);
3524	>	assertSame(g.getClass(), CompletableFuture.class);
3525	>	}}
3526
3527		/**
3528	<	* acceptEitherAsync result completes normally after normal
1861	<	* completion of sources
3528	>	* completedStage returns a completed CompletionStage
3529		*/
3530	<	public void testAcceptEitherAsync() {
3531	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3532	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3533	<	IncAction r = new IncAction();
3534	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
3535	<	f.complete(one);
3536	<	checkCompletedNormally(g, null);
1870	<	assertEquals(r.value, 2);
1871	<
1872	<	r = new IncAction();
1873	<	f = new CompletableFuture<>();
1874	<	f.complete(one);
1875	<	f2 = new CompletableFuture<>();
1876	<	g = f.acceptEitherAsync(f2, r);
1877	<	checkCompletedNormally(g, null);
1878	<	assertEquals(r.value, 2);
3530	>	public void testCompletedStage() {
3531	>	AtomicInteger x = new AtomicInteger(0);
3532	>	AtomicReference<Throwable> r = new AtomicReference<>();
3533	>	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3534	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3535	>	assertEquals(x.get(), 1);
3536	>	assertNull(r.get());
3537		}
3538
3539		/**
3540	<	* acceptEitherAsync result completes exceptionally after exceptional
3541	<	* completion of source
3540	>	* defaultExecutor by default returns the commonPool if
3541	>	* it supports more than one thread.
3542		*/
3543	<	public void testAcceptEitherAsync2() {
3543	>	public void testDefaultExecutor() {
3544		CompletableFuture<Integer> f = new CompletableFuture<>();
3545	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3546	<	IncAction r = new IncAction();
3547	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
3548	<	f.completeExceptionally(new CFException());
3549	<	checkCompletedWithWrappedCFException(g);
3550	<
1893	<	r = new IncAction();
1894	<	f = new CompletableFuture<>();
1895	<	f2 = new CompletableFuture<>();
1896	<	f2.completeExceptionally(new CFException());
1897	<	g = f.acceptEitherAsync(f2, r);
1898	<	f.complete(one);
1899	<	checkCompletedWithWrappedCFException(g);
3545	>	Executor e = f.defaultExecutor();
3546	>	Executor c = ForkJoinPool.commonPool();
3547	>	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3548	>	assertSame(e, c);
3549	>	else
3550	>	assertNotSame(e, c);
3551		}
3552
3553		/**
3554	<	* acceptEitherAsync result completes exceptionally if action does
3554	>	* failedFuture returns a CompletableFuture completed
3555	>	* exceptionally with the given Exception
3556		*/
3557	<	public void testAcceptEitherAsync3() {
3558	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3559	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3560	<	FailingConsumer r = new FailingConsumer();
1909	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1910	<	f.complete(one);
1911	<	checkCompletedWithWrappedCFException(g);
3557	>	public void testFailedFuture() {
3558	>	CFException ex = new CFException();
3559	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3560	>	checkCompletedExceptionally(f, ex);
3561		}
3562
3563		/**
3564	<	* acceptEitherAsync result completes exceptionally if either
1916	<	* source cancelled
3564	>	* failedFuture(null) throws NPE
3565		*/
3566	<	public void testAcceptEitherAsync4() {
3567	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3568	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3569	<	IncAction r = new IncAction();
3570	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1923	<	assertTrue(f.cancel(true));
1924	<	checkCompletedWithWrappedCancellationException(g);
1925	<
1926	<	r = new IncAction();
1927	<	f = new CompletableFuture<>();
1928	<	f2 = new CompletableFuture<>();
1929	<	assertTrue(f2.cancel(true));
1930	<	g = f.acceptEitherAsync(f2, r);
1931	<	checkCompletedWithWrappedCancellationException(g);
3566	>	public void testFailedFuture_null() {
3567	>	try {
3568	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3569	>	shouldThrow();
3570	>	} catch (NullPointerException success) {}
3571		}
3572
3573		/**
3574	<	* runAfterEitherAsync result completes normally after normal
3575	<	* completion of sources
3574	>	* copy returns a CompletableFuture that is completed normally,
3575	>	* with the same value, when source is.
3576		*/
3577	<	public void testRunAfterEitherAsync() {
3577	>	public void testCopy_normalCompletion() {
3578	>	for (boolean createIncomplete : new boolean[] { true, false })
3579	>	for (Integer v1 : new Integer[] { 1, null })
3580	>	{
3581		CompletableFuture<Integer> f = new CompletableFuture<>();
3582	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3583	<	Noop r = new Noop();
3584	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
3585	<	f.complete(one);
3586	<	checkCompletedNormally(g, null);
3587	<	assertTrue(r.ran);
3588	<
3589	<	r = new Noop();
3590	<	f = new CompletableFuture<>();
3591	<	f.complete(one);
3592	<	f2 = new CompletableFuture<>();
3593	<	g = f.runAfterEitherAsync(f2, r);
3594	<	checkCompletedNormally(g, null);
3595	<	assertTrue(r.ran);
3596	<	}
3582	>	if (!createIncomplete) assertTrue(f.complete(v1));
3583	>	CompletableFuture<Integer> g = f.copy();
3584	>	if (createIncomplete) {
3585	>	checkIncomplete(f);
3586	>	checkIncomplete(g);
3587	>	assertTrue(f.complete(v1));
3588	>	}
3589	>	checkCompletedNormally(f, v1);
3590	>	checkCompletedNormally(g, v1);
3591	>	}}
3592	>
3593	>	/**
3594	>	* copy returns a CompletableFuture that is completed exceptionally
3595	>	* when source is.
3596	>	*/
3597	>	public void testCopy_exceptionalCompletion() {
3598	>	for (boolean createIncomplete : new boolean[] { true, false })
3599	>	{
3600	>	CFException ex = new CFException();
3601	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3602	>	if (!createIncomplete) f.completeExceptionally(ex);
3603	>	CompletableFuture<Integer> g = f.copy();
3604	>	if (createIncomplete) {
3605	>	checkIncomplete(f);
3606	>	checkIncomplete(g);
3607	>	f.completeExceptionally(ex);
3608	>	}
3609	>	checkCompletedExceptionally(f, ex);
3610	>	checkCompletedWithWrappedException(g, ex);
3611	>	}}
3612
3613		/**
3614	<	* runAfterEitherAsync result completes exceptionally after exceptional
1958	<	* completion of source
3614	>	* Completion of a copy does not complete its source.
3615		*/
3616	<	public void testRunAfterEitherAsync2() {
3616	>	public void testCopy_oneWayPropagation() {
3617		CompletableFuture<Integer> f = new CompletableFuture<>();
3618	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3619	<	Noop r = new Noop();
3620	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
3621	<	f.completeExceptionally(new CFException());
3622	<	checkCompletedWithWrappedCFException(g);
3623	<
1968	<	r = new Noop();
1969	<	f = new CompletableFuture<>();
1970	<	f2 = new CompletableFuture<>();
1971	<	f2.completeExceptionally(new CFException());
1972	<	g = f.runAfterEitherAsync(f2, r);
1973	<	f.complete(one);
1974	<	checkCompletedWithWrappedCFException(g);
3618	>	assertTrue(f.copy().complete(1));
3619	>	assertTrue(f.copy().complete(null));
3620	>	assertTrue(f.copy().cancel(true));
3621	>	assertTrue(f.copy().cancel(false));
3622	>	assertTrue(f.copy().completeExceptionally(new CFException()));
3623	>	checkIncomplete(f);
3624		}
3625
3626		/**
3627	<	* runAfterEitherAsync result completes exceptionally if action does
3627	>	* minimalCompletionStage returns a CompletableFuture that is
3628	>	* completed normally, with the same value, when source is.
3629		*/
3630	<	public void testRunAfterEitherAsync3() {
3630	>	public void testMinimalCompletionStage() {
3631		CompletableFuture<Integer> f = new CompletableFuture<>();
3632	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3633	<	FailingNoop r = new FailingNoop();
3634	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
3635	<	f.complete(one);
3636	<	checkCompletedWithWrappedCFException(g);
3632	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3633	>	AtomicInteger x = new AtomicInteger(0);
3634	>	AtomicReference<Throwable> r = new AtomicReference<>();
3635	>	checkIncomplete(f);
3636	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3637	>	f.complete(1);
3638	>	checkCompletedNormally(f, 1);
3639	>	assertEquals(x.get(), 1);
3640	>	assertNull(r.get());
3641		}
3642
3643		/**
3644	<	* runAfterEitherAsync result completes exceptionally if either
3645	<	* source cancelled
3644	>	* minimalCompletionStage returns a CompletableFuture that is
3645	>	* completed exceptionally when source is.
3646		*/
3647	<	public void testRunAfterEitherAsync4() {
3647	>	public void testMinimalCompletionStage2() {
3648		CompletableFuture<Integer> f = new CompletableFuture<>();
3649	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3650	<	Noop r = new Noop();
3651	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
3652	<	assertTrue(f.cancel(true));
3653	<	checkCompletedWithWrappedCancellationException(g);
3654	<
3655	<	r = new Noop();
3656	<	f = new CompletableFuture<>();
3657	<	f2 = new CompletableFuture<>();
3658	<	assertTrue(f2.cancel(true));
2005	<	g = f.runAfterEitherAsync(f2, r);
2006	<	checkCompletedWithWrappedCancellationException(g);
2007	<	}
2008	<
2009	<	/**
2010	<	* thenComposeAsync result completes normally after normal
2011	<	* completion of source
2012	<	*/
2013	<	public void testThenComposeAsync() {
2014	<	CompletableFuture<Integer> f, g;
2015	<	CompletableFutureInc r;
2016	<
2017	<	f = new CompletableFuture<>();
2018	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2019	<	f.complete(one);
2020	<	checkCompletedNormally(g, two);
2021	<
2022	<	f = new CompletableFuture<>();
2023	<	f.complete(one);
2024	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2025	<	checkCompletedNormally(g, two);
2026	<	}
2027	<
2028	<	/**
2029	<	* thenComposeAsync result completes exceptionally after
2030	<	* exceptional completion of source
2031	<	*/
2032	<	public void testThenComposeAsync2() {
2033	<	CompletableFuture<Integer> f, g;
2034	<	CompletableFutureInc r;
2035	<
2036	<	f = new CompletableFuture<>();
2037	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2038	<	f.completeExceptionally(new CFException());
2039	<	checkCompletedWithWrappedCFException(g);
2040	<	assertFalse(r.ran);
2041	<
2042	<	f = new CompletableFuture<>();
2043	<	f.completeExceptionally(new CFException());
2044	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2045	<	checkCompletedWithWrappedCFException(g);
2046	<	assertFalse(r.ran);
3649	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3650	>	AtomicInteger x = new AtomicInteger(0);
3651	>	AtomicReference<Throwable> r = new AtomicReference<>();
3652	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3653	>	checkIncomplete(f);
3654	>	CFException ex = new CFException();
3655	>	f.completeExceptionally(ex);
3656	>	checkCompletedExceptionally(f, ex);
3657	>	assertEquals(x.get(), 0);
3658	>	assertEquals(r.get().getCause(), ex);
3659		}
3660
3661		/**
3662	<	* thenComposeAsync result completes exceptionally if action does
3662	>	* failedStage returns a CompletionStage completed
3663	>	* exceptionally with the given Exception
3664		*/
3665	<	public void testThenComposeAsync3() {
3666	<	CompletableFuture<Integer> f, g;
3667	<	FailingCompletableFutureFunction r;
3668	<
3669	<	f = new CompletableFuture<>();
3670	<	g = f.thenComposeAsync(r = new FailingCompletableFutureFunction());
3671	<	f.complete(one);
3672	<	checkCompletedWithWrappedCFException(g);
2060	<
2061	<	f = new CompletableFuture<>();
2062	<	f.complete(one);
2063	<	g = f.thenComposeAsync(r = new FailingCompletableFutureFunction());
2064	<	checkCompletedWithWrappedCFException(g);
3665	>	public void testFailedStage() {
3666	>	CFException ex = new CFException();
3667	>	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3668	>	AtomicInteger x = new AtomicInteger(0);
3669	>	AtomicReference<Throwable> r = new AtomicReference<>();
3670	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3671	>	assertEquals(x.get(), 0);
3672	>	assertEquals(r.get(), ex);
3673		}
3674
3675		/**
3676	<	* thenComposeAsync result completes exceptionally if source cancelled
3676	>	* completeAsync completes with value of given supplier
3677		*/
3678	<	public void testThenComposeAsync4() {
3679	<	CompletableFuture<Integer> f, g;
3680	<	CompletableFutureInc r;
2073	<
2074	<	f = new CompletableFuture<>();
2075	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2076	<	assertTrue(f.cancel(true));
2077	<	checkCompletedWithWrappedCancellationException(g);
2078	<
2079	<	f = new CompletableFuture<>();
2080	<	assertTrue(f.cancel(true));
2081	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2082	<	checkCompletedWithWrappedCancellationException(g);
2083	<	}
2084	<
2085	<	// async with explicit executors
2086	<
2087	<	/**
2088	<	* thenRunAsync result completes normally after normal completion of source
2089	<	*/
2090	<	public void testThenRunAsyncE() {
3678	>	public void testCompleteAsync() {
3679	>	for (Integer v1 : new Integer[] { 1, null })
3680	>	{
3681		CompletableFuture<Integer> f = new CompletableFuture<>();
3682	<	Noop r = new Noop();
3683	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
3684	<	f.complete(null);
3685	<	checkCompletedNormally(g, null);
2096	<
2097	<	// reordered version
2098	<	f = new CompletableFuture<>();
2099	<	f.complete(null);
2100	<	r = new Noop();
2101	<	g = f.thenRunAsync(r, new ThreadExecutor());
2102	<	checkCompletedNormally(g, null);
2103	<	}
3682	>	f.completeAsync(() -> v1);
3683	>	f.join();
3684	>	checkCompletedNormally(f, v1);
3685	>	}}
3686
3687		/**
3688	<	* thenRunAsync result completes exceptionally after exceptional
2107	<	* completion of source
3688	>	* completeAsync completes exceptionally if given supplier throws
3689		*/
3690	<	public void testThenRunAsync2E() {
3690	>	public void testCompleteAsync2() {
3691		CompletableFuture<Integer> f = new CompletableFuture<>();
3692	<	Noop r = new Noop();
3693	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2113	<	f.completeExceptionally(new CFException());
3692	>	CFException ex = new CFException();
3693	>	f.completeAsync(() -> { throw ex; });
3694		try {
3695	<	g.join();
3695	>	f.join();
3696		shouldThrow();
3697		} catch (CompletionException success) {}
3698	<	checkCompletedWithWrappedCFException(g);
3698	>	checkCompletedWithWrappedException(f, ex);
3699		}
3700
3701		/**
3702	<	* thenRunAsync result completes exceptionally if action does
3702	>	* completeAsync with given executor completes with value of given supplier
3703		*/
3704	<	public void testThenRunAsync3E() {
3704	>	public void testCompleteAsync3() {
3705	>	for (Integer v1 : new Integer[] { 1, null })
3706	>	{
3707		CompletableFuture<Integer> f = new CompletableFuture<>();
3708	<	FailingNoop r = new FailingNoop();
3709	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
3710	<	f.complete(null);
3711	<	checkCompletedWithWrappedCFException(g);
3712	<	}
3713	<
2132	<	/**
2133	<	* thenRunAsync result completes exceptionally if source cancelled
2134	<	*/
2135	<	public void testThenRunAsync4E() {
2136	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2137	<	Noop r = new Noop();
2138	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2139	<	assertTrue(f.cancel(true));
2140	<	checkCompletedWithWrappedCancellationException(g);
2141	<	}
3708	>	ThreadExecutor executor = new ThreadExecutor();
3709	>	f.completeAsync(() -> v1, executor);
3710	>	assertSame(v1, f.join());
3711	>	checkCompletedNormally(f, v1);
3712	>	assertEquals(1, executor.count.get());
3713	>	}}
3714
3715		/**
3716	<	* thenApplyAsync result completes normally after normal completion of source
3716	>	* completeAsync with given executor completes exceptionally if
3717	>	* given supplier throws
3718		*/
3719	<	public void testThenApplyAsyncE() {
3719	>	public void testCompleteAsync4() {
3720		CompletableFuture<Integer> f = new CompletableFuture<>();
3721	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3722	<	f.complete(one);
3723	<	checkCompletedNormally(g, two);
3724	<	}
3725	<
3726	<	/**
3727	<	* thenApplyAsync result completes exceptionally after exceptional
3728	<	* completion of source
3729	<	*/
2157	<	public void testThenApplyAsync2E() {
2158	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2159	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
2160	<	f.completeExceptionally(new CFException());
2161	<	checkCompletedWithWrappedCFException(g);
2162	<	}
2163	<
2164	<	/**
2165	<	* thenApplyAsync result completes exceptionally if action does
2166	<	*/
2167	<	public void testThenApplyAsync3E() {
2168	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2169	<	FailingFunction r = new FailingFunction();
2170	<	CompletableFuture<Integer> g = f.thenApplyAsync(r, new ThreadExecutor());
2171	<	f.complete(null);
2172	<	checkCompletedWithWrappedCFException(g);
3721	>	CFException ex = new CFException();
3722	>	ThreadExecutor executor = new ThreadExecutor();
3723	>	f.completeAsync(() -> { throw ex; }, executor);
3724	>	try {
3725	>	f.join();
3726	>	shouldThrow();
3727	>	} catch (CompletionException success) {}
3728	>	checkCompletedWithWrappedException(f, ex);
3729	>	assertEquals(1, executor.count.get());
3730		}
3731
3732		/**
3733	<	* thenApplyAsync result completes exceptionally if source cancelled
3733	>	* orTimeout completes with TimeoutException if not complete
3734		*/
3735	<	public void testThenApplyAsync4E() {
3735	>	public void testOrTimeout_timesOut() {
3736	>	long timeoutMillis = timeoutMillis();
3737		CompletableFuture<Integer> f = new CompletableFuture<>();
3738	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3739	<	assertTrue(f.cancel(true));
3740	<	checkCompletedWithWrappedCancellationException(g);
3738	>	long startTime = System.nanoTime();
3739	>	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3740	>	checkCompletedWithTimeoutException(f);
3741	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3742		}
3743
3744		/**
3745	<	* thenAcceptAsync result completes normally after normal
2187	<	* completion of source
3745	>	* orTimeout completes normally if completed before timeout
3746		*/
3747	<	public void testThenAcceptAsyncE() {
3747	>	public void testOrTimeout_completed() {
3748	>	for (Integer v1 : new Integer[] { 1, null })
3749	>	{
3750		CompletableFuture<Integer> f = new CompletableFuture<>();
3751	<	IncAction r = new IncAction();
3752	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3753	<	f.complete(one);
3754	<	checkCompletedNormally(g, null);
3755	<	assertEquals(r.value, 2);
3756	<	}
3751	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3752	>	long startTime = System.nanoTime();
3753	>	f.complete(v1);
3754	>	assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3755	>	assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3756	>	g.complete(v1);
3757	>	checkCompletedNormally(f, v1);
3758	>	checkCompletedNormally(g, v1);
3759	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3760	>	}}
3761
3762		/**
3763	<	* thenAcceptAsync result completes exceptionally after exceptional
2200	<	* completion of source
3763	>	* completeOnTimeout completes with given value if not complete
3764		*/
3765	<	public void testThenAcceptAsync2E() {
3766	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3767	<	IncAction r = new IncAction();
2205	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
2206	<	f.completeExceptionally(new CFException());
2207	<	checkCompletedWithWrappedCFException(g);
3765	>	public void testCompleteOnTimeout_timesOut() {
3766	>	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3767	>	() -> testCompleteOnTimeout_timesOut(null));
3768		}
3769
3770		/**
3771	<	* thenAcceptAsync result completes exceptionally if action does
3771	>	* completeOnTimeout completes with given value if not complete
3772		*/
3773	<	public void testThenAcceptAsync3E() {
3773	>	public void testCompleteOnTimeout_timesOut(Integer v) {
3774	>	long timeoutMillis = timeoutMillis();
3775		CompletableFuture<Integer> f = new CompletableFuture<>();
3776	<	FailingConsumer r = new FailingConsumer();
3777	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3778	<	f.complete(null);
3779	<	checkCompletedWithWrappedCFException(g);
3776	>	long startTime = System.nanoTime();
3777	>	assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS));
3778	>	assertSame(v, f.join());
3779	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3780	>	f.complete(99);         // should have no effect
3781	>	checkCompletedNormally(f, v);
3782		}
3783
3784		/**
3785	<	* thenAcceptAsync result completes exceptionally if source cancelled
3785	>	* completeOnTimeout has no effect if completed within timeout
3786		*/
3787	<	public void testThenAcceptAsync4E() {
3787	>	public void testCompleteOnTimeout_completed() {
3788	>	for (Integer v1 : new Integer[] { 1, null })
3789	>	{
3790		CompletableFuture<Integer> f = new CompletableFuture<>();
3791	<	IncAction r = new IncAction();
3792	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3793	<	assertTrue(f.cancel(true));
3794	<	checkCompletedWithWrappedCancellationException(g);
3795	<	}
3796	<
3797	<	/**
3798	<	* thenCombineAsync result completes normally after normal
3799	<	* completion of sources
3800	<	*/
3801	<	public void testThenCombineAsyncE() {
3802	<	CompletableFuture<Integer> f, g, h;
3803	<	ThreadExecutor e = new ThreadExecutor();
3804	<	int count = 0;
3805	<
3806	<	f = new CompletableFuture<>();
3807	<	g = new CompletableFuture<>();
3808	<	h = f.thenCombineAsync(g, subtract, e);
3809	<	f.complete(3);
3810	<	checkIncomplete(h);
3811	<	g.complete(1);
3812	<	checkCompletedNormally(h, 2);
3813	<	assertEquals(++count, e.count.get());
3814	<
3815	<	f = new CompletableFuture<>();
3816	<	g = new CompletableFuture<>();
3817	<	h = f.thenCombineAsync(g, subtract, e);
3818	<	g.complete(1);
3819	<	checkIncomplete(h);
3820	<	f.complete(3);
3821	<	checkCompletedNormally(h, 2);
3822	<	assertEquals(++count, e.count.get());
3823	<
3824	<	f = new CompletableFuture<>();
3825	<	g = new CompletableFuture<>();
3826	<	g.complete(1);
3827	<	f.complete(3);
3828	<	h = f.thenCombineAsync(g, subtract, e);
2264	<	checkCompletedNormally(h, 2);
2265	<	assertEquals(++count, e.count.get());
2266	<	}
2267	<
2268	<	/**
2269	<	* thenCombineAsync result completes exceptionally after exceptional
2270	<	* completion of either source
2271	<	*/
2272	<	public void testThenCombineAsync2E() {
2273	<	CompletableFuture<Integer> f, g, h;
2274	<	ThreadExecutor e = new ThreadExecutor();
2275	<	int count = 0;
2276	<
2277	<	f = new CompletableFuture<>();
2278	<	g = new CompletableFuture<>();
2279	<	h = f.thenCombineAsync(g, subtract, e);
2280	<	f.completeExceptionally(new CFException());
2281	<	checkIncomplete(h);
2282	<	g.complete(1);
2283	<	checkCompletedWithWrappedCFException(h);
3791	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3792	>	long startTime = System.nanoTime();
3793	>	f.complete(v1);
3794	>	assertSame(f, f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3795	>	assertSame(g, g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3796	>	g.complete(v1);
3797	>	checkCompletedNormally(f, v1);
3798	>	checkCompletedNormally(g, v1);
3799	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3800	>	}}
3801	>
3802	>	/**
3803	>	* delayedExecutor returns an executor that delays submission
3804	>	*/
3805	>	public void testDelayedExecutor() {
3806	>	testInParallel(() -> testDelayedExecutor(null, null),
3807	>	() -> testDelayedExecutor(null, 1),
3808	>	() -> testDelayedExecutor(new ThreadExecutor(), 1),
3809	>	() -> testDelayedExecutor(new ThreadExecutor(), 1));
3810	>	}
3811	>
3812	>	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
3813	>	long timeoutMillis = timeoutMillis();
3814	>	// Use an "unreasonably long" long timeout to catch lingering threads
3815	>	long longTimeoutMillis = 1000 * 60 * 60 * 24;
3816	>	final Executor delayer, longDelayer;
3817	>	if (executor == null) {
3818	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
3819	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
3820	>	} else {
3821	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
3822	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
3823	>	}
3824	>	long startTime = System.nanoTime();
3825	>	CompletableFuture<Integer> f =
3826	>	CompletableFuture.supplyAsync(() -> v, delayer);
3827	>	CompletableFuture<Integer> g =
3828	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
3829
3830	<	f = new CompletableFuture<>();
2286	<	g = new CompletableFuture<>();
2287	<	h = f.thenCombineAsync(g, subtract, e);
2288	<	g.completeExceptionally(new CFException());
2289	<	checkIncomplete(h);
2290	<	f.complete(3);
2291	<	checkCompletedWithWrappedCFException(h);
3830	>	assertNull(g.getNow(null));
3831
3832	<	f = new CompletableFuture<>();
3833	<	g = new CompletableFuture<>();
3834	<	g.completeExceptionally(new CFException());
3835	<	h = f.thenCombineAsync(g, subtract, e);
2297	<	checkIncomplete(h);
2298	<	f.complete(3);
2299	<	checkCompletedWithWrappedCFException(h);
3832	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
3833	>	long millisElapsed = millisElapsedSince(startTime);
3834	>	assertTrue(millisElapsed >= timeoutMillis);
3835	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
3836
3837	<	assertEquals(0, e.count.get());
2302	<	}
3837	>	checkCompletedNormally(f, v);
3838
2304	–	/**
2305	–	* thenCombineAsync result completes exceptionally if action does
2306	–	*/
2307	–	public void testThenCombineAsync3E() {
2308	–	CompletableFuture<Integer> f = new CompletableFuture<>();
2309	–	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2310	–	FailingBiFunction r = new FailingBiFunction();
2311	–	CompletableFuture<Integer> g = f.thenCombineAsync(f2, r, new ThreadExecutor());
2312	–	f.complete(one);
3839		checkIncomplete(g);
2314	–	assertFalse(r.ran);
2315	–	f2.complete(two);
2316	–	checkCompletedWithWrappedCFException(g);
2317	–	assertTrue(r.ran);
2318	–	}
2319	–
2320	–	/**
2321	–	* thenCombineAsync result completes exceptionally if either source cancelled
2322	–	*/
2323	–	public void testThenCombineAsync4E() {
2324	–	CompletableFuture<Integer> f, g, h;
2325	–	ThreadExecutor e = new ThreadExecutor();
2326	–
2327	–	f = new CompletableFuture<>();
2328	–	g = new CompletableFuture<>();
2329	–	h = f.thenCombineAsync(g, subtract, e);
2330	–	assertTrue(f.cancel(true));
2331	–	checkIncomplete(h);
2332	–	g.complete(1);
2333	–	checkCompletedWithWrappedCancellationException(h);
2334	–
2335	–	f = new CompletableFuture<>();
2336	–	g = new CompletableFuture<>();
2337	–	h = f.thenCombineAsync(g, subtract, e);
2338	–	assertTrue(g.cancel(true));
2339	–	checkIncomplete(h);
2340	–	f.complete(3);
2341	–	checkCompletedWithWrappedCancellationException(h);
2342	–
2343	–	f = new CompletableFuture<>();
2344	–	g = new CompletableFuture<>();
3840		assertTrue(g.cancel(true));
2346	–	h = f.thenCombineAsync(g, subtract, e);
2347	–	checkIncomplete(h);
2348	–	f.complete(3);
2349	–	checkCompletedWithWrappedCancellationException(h);
2350	–
2351	–	f = new CompletableFuture<>();
2352	–	g = new CompletableFuture<>();
2353	–	assertTrue(f.cancel(true));
2354	–	assertTrue(g.cancel(true));
2355	–	h = f.thenCombineAsync(g, subtract, e);
2356	–	checkCompletedWithWrappedCancellationException(h);
2357	–
2358	–	assertEquals(0, e.count.get());
2359	–	}
2360	–
2361	–	/**
2362	–	* thenAcceptBothAsync result completes normally after normal
2363	–	* completion of sources
2364	–	*/
2365	–	public void testThenAcceptBothAsyncE() {
2366	–	CompletableFuture<Integer> f, g;
2367	–	CompletableFuture<Void> h;
2368	–	SubtractAction r;
2369	–	ThreadExecutor e = new ThreadExecutor();
2370	–
2371	–	f = new CompletableFuture<>();
2372	–	g = new CompletableFuture<>();
2373	–	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2374	–	f.complete(3);
2375	–	checkIncomplete(h);
2376	–	g.complete(1);
2377	–	checkCompletedNormally(h, null);
2378	–	assertEquals(r.value, 2);
2379	–
2380	–	f = new CompletableFuture<>();
2381	–	g = new CompletableFuture<>();
2382	–	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2383	–	g.complete(1);
2384	–	checkIncomplete(h);
2385	–	f.complete(3);
2386	–	checkCompletedNormally(h, null);
2387	–	assertEquals(r.value, 2);
2388	–
2389	–	f = new CompletableFuture<>();
2390	–	g = new CompletableFuture<>();
2391	–	g.complete(1);
2392	–	f.complete(3);
2393	–	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2394	–	checkCompletedNormally(h, null);
2395	–	assertEquals(r.value, 2);
2396	–
2397	–	assertEquals(3, e.count.get());
3841		}
3842
3843	<	/**
2401	<	* thenAcceptBothAsync result completes exceptionally after exceptional
2402	<	* completion of source
2403	<	*/
2404	<	public void testThenAcceptBothAsync2E() {
2405	<	CompletableFuture<Integer> f, g;
2406	<	CompletableFuture<Void> h;
2407	<	SubtractAction r;
2408	<	ThreadExecutor e = new ThreadExecutor();
2409	<
2410	<	f = new CompletableFuture<>();
2411	<	g = new CompletableFuture<>();
2412	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2413	<	f.completeExceptionally(new CFException());
2414	<	checkIncomplete(h);
2415	<	g.complete(1);
2416	<	checkCompletedWithWrappedCFException(h);
2417	<
2418	<	f = new CompletableFuture<>();
2419	<	g = new CompletableFuture<>();
2420	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2421	<	g.completeExceptionally(new CFException());
2422	<	checkIncomplete(h);
2423	<	f.complete(3);
2424	<	checkCompletedWithWrappedCFException(h);
2425	<
2426	<	f = new CompletableFuture<>();
2427	<	g = new CompletableFuture<>();
2428	<	f.complete(3);
2429	<	g.completeExceptionally(new CFException());
2430	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2431	<	checkCompletedWithWrappedCFException(h);
2432	<
2433	<	f = new CompletableFuture<>();
2434	<	g = new CompletableFuture<>();
2435	<	f.completeExceptionally(new CFException());
2436	<	g.complete(3);
2437	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2438	<	checkCompletedWithWrappedCFException(h);
2439	<
2440	<	assertEquals(0, e.count.get());
2441	<	}
2442	<
2443	<	/**
2444	<	* thenAcceptBothAsync result completes exceptionally if action does
2445	<	*/
2446	<	public void testThenAcceptBothAsync3E() {
2447	<	CompletableFuture<Integer> f, g;
2448	<	CompletableFuture<Void> h;
2449	<	FailingBiConsumer r;
2450	<	ThreadExecutor e = new ThreadExecutor();
2451	<
2452	<	f = new CompletableFuture<>();
2453	<	g = new CompletableFuture<>();
2454	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer(), e);
2455	<	f.complete(3);
2456	<	checkIncomplete(h);
2457	<	g.complete(1);
2458	<	checkCompletedWithWrappedCFException(h);
2459	<
2460	<	f = new CompletableFuture<>();
2461	<	g = new CompletableFuture<>();
2462	<	f.complete(3);
2463	<	g.complete(1);
2464	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer(), e);
2465	<	checkCompletedWithWrappedCFException(h);
3843	>	//--- tests of implementation details; not part of official tck ---
3844
3845	<	assertEquals(2, e.count.get());
3846	<	}
3847	<
3848	<	/**
3849	<	* thenAcceptBothAsync result completes exceptionally if either source cancelled
3850	<	*/
3851	<	public void testThenAcceptBothAsync4E() {
3852	<	CompletableFuture<Integer> f, g;
3853	<	CompletableFuture<Void> h;
2476	<	SubtractAction r;
2477	<	ThreadExecutor e = new ThreadExecutor();
2478	<
2479	<	f = new CompletableFuture<>();
2480	<	g = new CompletableFuture<>();
2481	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2482	<	assertTrue(f.cancel(true));
2483	<	checkIncomplete(h);
2484	<	g.complete(1);
2485	<	checkCompletedWithWrappedCancellationException(h);
2486	<
2487	<	f = new CompletableFuture<>();
2488	<	g = new CompletableFuture<>();
2489	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2490	<	assertTrue(g.cancel(true));
2491	<	checkIncomplete(h);
2492	<	f.complete(3);
2493	<	checkCompletedWithWrappedCancellationException(h);
2494	<
2495	<	f = new CompletableFuture<>();
2496	<	g = new CompletableFuture<>();
2497	<	f.complete(3);
2498	<	assertTrue(g.cancel(true));
2499	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2500	<	checkCompletedWithWrappedCancellationException(h);
2501	<
2502	<	f = new CompletableFuture<>();
2503	<	g = new CompletableFuture<>();
2504	<	assertTrue(f.cancel(true));
2505	<	g.complete(3);
2506	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2507	<	checkCompletedWithWrappedCancellationException(h);
2508	<
2509	<	assertEquals(0, e.count.get());
2510	<	}
2511	<
2512	<	/**
2513	<	* runAfterBothAsync result completes normally after normal
2514	<	* completion of sources
2515	<	*/
2516	<	public void testRunAfterBothAsyncE() {
2517	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2518	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2519	<	Noop r = new Noop();
2520	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2521	<	f.complete(one);
2522	<	checkIncomplete(g);
2523	<	f2.complete(two);
2524	<	checkCompletedNormally(g, null);
2525	<	assertTrue(r.ran);
2526	<	}
2527	<
2528	<	/**
2529	<	* runAfterBothAsync result completes exceptionally after exceptional
2530	<	* completion of source
2531	<	*/
2532	<	public void testRunAfterBothAsync2E() {
2533	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2534	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2535	<	Noop r = new Noop();
2536	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2537	<	f.completeExceptionally(new CFException());
2538	<	f2.complete(two);
2539	<	checkCompletedWithWrappedCFException(g);
2540	<
2541	<	r = new Noop();
2542	<	f = new CompletableFuture<>();
2543	<	f2 = new CompletableFuture<>();
2544	<	g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2545	<	f.complete(one);
2546	<	f2.completeExceptionally(new CFException());
2547	<	checkCompletedWithWrappedCFException(g);
2548	<	}
2549	<
2550	<	/**
2551	<	* runAfterBothAsync result completes exceptionally if action does
2552	<	*/
2553	<	public void testRunAfterBothAsync3E() {
2554	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2555	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2556	<	FailingNoop r = new FailingNoop();
2557	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2558	<	f.complete(one);
2559	<	checkIncomplete(g);
2560	<	f2.complete(two);
2561	<	checkCompletedWithWrappedCFException(g);
2562	<	}
2563	<
2564	<	/**
2565	<	* runAfterBothAsync result completes exceptionally if either source cancelled
2566	<	*/
2567	<	public void testRunAfterBothAsync4E() {
2568	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2569	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2570	<	Noop r = new Noop();
2571	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2572	<	assertTrue(f.cancel(true));
2573	<	f2.complete(two);
2574	<	checkCompletedWithWrappedCancellationException(g);
2575	<
2576	<	r = new Noop();
2577	<	f = new CompletableFuture<>();
2578	<	f2 = new CompletableFuture<>();
2579	<	g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2580	<	f.complete(one);
2581	<	assertTrue(f2.cancel(true));
2582	<	checkCompletedWithWrappedCancellationException(g);
2583	<	}
2584	<
2585	<	/**
2586	<	* applyToEitherAsync result completes normally after normal
2587	<	* completion of sources
2588	<	*/
2589	<	public void testApplyToEitherAsyncE() {
2590	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2591	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2592	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2593	<	f.complete(one);
2594	<	checkCompletedNormally(g, two);
2595	<
2596	<	f = new CompletableFuture<>();
2597	<	f.complete(one);
2598	<	f2 = new CompletableFuture<>();
2599	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2600	<	checkCompletedNormally(g, two);
2601	<	}
2602	<
2603	<	/**
2604	<	* applyToEitherAsync result completes exceptionally after exceptional
2605	<	* completion of source
2606	<	*/
2607	<	public void testApplyToEitherAsync2E() {
2608	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2609	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2610	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2611	<	f.completeExceptionally(new CFException());
2612	<	checkCompletedWithWrappedCFException(g);
2613	<
2614	<	f = new CompletableFuture<>();
2615	<	f2 = new CompletableFuture<>();
2616	<	f2.completeExceptionally(new CFException());
2617	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2618	<	f.complete(one);
2619	<	checkCompletedWithWrappedCFException(g);
2620	<	}
2621	<
2622	<	/**
2623	<	* applyToEitherAsync result completes exceptionally if action does
2624	<	*/
2625	<	public void testApplyToEitherAsync3E() {
2626	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2627	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2628	<	FailingFunction r = new FailingFunction();
2629	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r, new ThreadExecutor());
2630	<	f.complete(one);
2631	<	checkCompletedWithWrappedCFException(g);
2632	<	}
2633	<
2634	<	/**
2635	<	* applyToEitherAsync result completes exceptionally if either source cancelled
2636	<	*/
2637	<	public void testApplyToEitherAsync4E() {
2638	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2639	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2640	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2641	<	assertTrue(f.cancel(true));
2642	<	checkCompletedWithWrappedCancellationException(g);
2643	<
2644	<	f = new CompletableFuture<>();
2645	<	f2 = new CompletableFuture<>();
2646	<	assertTrue(f2.cancel(true));
2647	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2648	<	checkCompletedWithWrappedCancellationException(g);
2649	<	}
2650	<
2651	<	/**
2652	<	* acceptEitherAsync result completes normally after normal
2653	<	* completion of sources
2654	<	*/
2655	<	public void testAcceptEitherAsyncE() {
2656	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2657	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2658	<	IncAction r = new IncAction();
2659	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2660	<	f.complete(one);
2661	<	checkCompletedNormally(g, null);
2662	<	assertEquals(r.value, 2);
2663	<
2664	<	r = new IncAction();
2665	<	f = new CompletableFuture<>();
2666	<	f.complete(one);
2667	<	f2 = new CompletableFuture<>();
2668	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2669	<	checkCompletedNormally(g, null);
2670	<	assertEquals(r.value, 2);
2671	<	}
2672	<
2673	<	/**
2674	<	* acceptEitherAsync result completes exceptionally after exceptional
2675	<	* completion of source
2676	<	*/
2677	<	public void testAcceptEitherAsync2E() {
2678	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2679	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2680	<	IncAction r = new IncAction();
2681	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2682	<	f.completeExceptionally(new CFException());
2683	<	checkCompletedWithWrappedCFException(g);
2684	<
2685	<	r = new IncAction();
2686	<	f = new CompletableFuture<>();
2687	<	f2 = new CompletableFuture<>();
2688	<	f2.completeExceptionally(new CFException());
2689	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2690	<	f.complete(one);
2691	<	checkCompletedWithWrappedCFException(g);
2692	<	}
2693	<
2694	<	/**
2695	<	* acceptEitherAsync result completes exceptionally if action does
2696	<	*/
2697	<	public void testAcceptEitherAsync3E() {
2698	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2699	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2700	<	FailingConsumer r = new FailingConsumer();
2701	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2702	<	f.complete(one);
2703	<	checkCompletedWithWrappedCFException(g);
2704	<	}
2705	<
2706	<	/**
2707	<	* acceptEitherAsync result completes exceptionally if either
2708	<	* source cancelled
2709	<	*/
2710	<	public void testAcceptEitherAsync4E() {
2711	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2712	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2713	<	IncAction r = new IncAction();
2714	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2715	<	assertTrue(f.cancel(true));
2716	<	checkCompletedWithWrappedCancellationException(g);
2717	<
2718	<	r = new IncAction();
2719	<	f = new CompletableFuture<>();
2720	<	f2 = new CompletableFuture<>();
2721	<	assertTrue(f2.cancel(true));
2722	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2723	<	checkCompletedWithWrappedCancellationException(g);
2724	<	}
2725	<
2726	<	/**
2727	<	* runAfterEitherAsync result completes normally after normal
2728	<	* completion of sources
2729	<	*/
2730	<	public void testRunAfterEitherAsyncE() {
2731	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2732	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2733	<	Noop r = new Noop();
2734	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2735	<	f.complete(one);
2736	<	checkCompletedNormally(g, null);
2737	<	assertTrue(r.ran);
2738	<
2739	<	r = new Noop();
2740	<	f = new CompletableFuture<>();
2741	<	f.complete(one);
2742	<	f2 = new CompletableFuture<>();
2743	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2744	<	checkCompletedNormally(g, null);
2745	<	assertTrue(r.ran);
2746	<	}
2747	<
2748	<	/**
2749	<	* runAfterEitherAsync result completes exceptionally after exceptional
2750	<	* completion of source
2751	<	*/
2752	<	public void testRunAfterEitherAsync2E() {
2753	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2754	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2755	<	Noop r = new Noop();
2756	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2757	<	f.completeExceptionally(new CFException());
2758	<	checkCompletedWithWrappedCFException(g);
2759	<
2760	<	r = new Noop();
2761	<	f = new CompletableFuture<>();
2762	<	f2 = new CompletableFuture<>();
2763	<	f2.completeExceptionally(new CFException());
2764	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2765	<	f.complete(one);
2766	<	checkCompletedWithWrappedCFException(g);
2767	<	}
2768	<
2769	<	/**
2770	<	* runAfterEitherAsync result completes exceptionally if action does
2771	<	*/
2772	<	public void testRunAfterEitherAsync3E() {
2773	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2774	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2775	<	FailingNoop r = new FailingNoop();
2776	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2777	<	f.complete(one);
2778	<	checkCompletedWithWrappedCFException(g);
2779	<	}
2780	<
2781	<	/**
2782	<	* runAfterEitherAsync result completes exceptionally if either
2783	<	* source cancelled
2784	<	*/
2785	<	public void testRunAfterEitherAsync4E() {
2786	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2787	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2788	<	Noop r = new Noop();
2789	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2790	<	assertTrue(f.cancel(true));
2791	<	checkCompletedWithWrappedCancellationException(g);
2792	<
2793	<	r = new Noop();
2794	<	f = new CompletableFuture<>();
2795	<	f2 = new CompletableFuture<>();
2796	<	assertTrue(f2.cancel(true));
2797	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2798	<	checkCompletedWithWrappedCancellationException(g);
2799	<	}
3845	>	Object resultOf(CompletableFuture<?> f) {
3846	>	SecurityManager sm = System.getSecurityManager();
3847	>	if (sm != null) {
3848	>	try {
3849	>	System.setSecurityManager(null);
3850	>	} catch (SecurityException giveUp) {
3851	>	return "Reflection not available";
3852	>	}
3853	>	}
3854
3855	<	/**
3856	<	* thenComposeAsync result completes normally after normal
3857	<	* completion of source
3858	<	*/
3859	<	public void testThenComposeAsyncE() {
3860	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3861	<	CompletableFutureInc r = new CompletableFutureInc();
3862	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
3863	<	f.complete(one);
3864	<	checkCompletedNormally(g, two);
3855	>	try {
3856	>	java.lang.reflect.Field resultField
3857	>	= CompletableFuture.class.getDeclaredField("result");
3858	>	resultField.setAccessible(true);
3859	>	return resultField.get(f);
3860	>	} catch (Throwable t) {
3861	>	throw new AssertionError(t);
3862	>	} finally {
3863	>	if (sm != null) System.setSecurityManager(sm);
3864	>	}
3865		}
3866
3867	<	/**
3868	<	* thenComposeAsync result completes exceptionally after
3869	<	* exceptional completion of source
3870	<	*/
3871	<	public void testThenComposeAsync2E() {
3872	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3873	<	CompletableFutureInc r = new CompletableFutureInc();
3874	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
3875	<	f.completeExceptionally(new CFException());
3876	<	checkCompletedWithWrappedCFException(g);
3877	<	}
3867	>	public void testExceptionPropagationReusesResultObject() {
3868	>	if (!testImplementationDetails) return;
3869	>	for (ExecutionMode m : ExecutionMode.values())
3870	>	{
3871	>	final CFException ex = new CFException();
3872	>	final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
3873	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3874	>
3875	>	final Runnable noopRunnable = new Noop(m);
3876	>	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
3877	>	final Function<Integer, Integer> incFunction = new IncFunction(m);
3878	>
3879	>	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
3880	>	= new ArrayList<>();
3881	>
3882	>	funs.add(y -> m.thenRun(y, noopRunnable));
3883	>	funs.add(y -> m.thenAccept(y, noopConsumer));
3884	>	funs.add(y -> m.thenApply(y, incFunction));
3885	>
3886	>	funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable));
3887	>	funs.add(y -> m.acceptEither(y, incomplete, noopConsumer));
3888	>	funs.add(y -> m.applyToEither(y, incomplete, incFunction));
3889	>
3890	>	funs.add(y -> m.runAfterBoth(y, v42, noopRunnable));
3891	>	funs.add(y -> m.runAfterBoth(v42, y, noopRunnable));
3892	>	funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3893	>	funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
3894	>	funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m)));
3895	>	funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m)));
3896	>
3897	>	funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
3898	>
3899	>	funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m)));
3900	>
3901	>	funs.add(y -> CompletableFuture.allOf(y));
3902	>	funs.add(y -> CompletableFuture.allOf(y, v42));
3903	>	funs.add(y -> CompletableFuture.allOf(v42, y));
3904	>	funs.add(y -> CompletableFuture.anyOf(y));
3905	>	funs.add(y -> CompletableFuture.anyOf(y, incomplete));
3906	>	funs.add(y -> CompletableFuture.anyOf(incomplete, y));
3907
3908	<	/**
3909	<	* thenComposeAsync result completes exceptionally if action does
3910	<	*/
3911	<	public void testThenComposeAsync3E() {
3912	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3913	<	FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
3914	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
3915	<	f.complete(one);
3916	<	checkCompletedWithWrappedCFException(g);
3917	<	}
3908	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3909	>	fun : funs) {
3910	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3911	>	f.completeExceptionally(ex);
3912	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3913	>	checkCompletedWithWrappedException(src, ex);
3914	>	CompletableFuture<?> dep = fun.apply(src);
3915	>	checkCompletedWithWrappedException(dep, ex);
3916	>	assertSame(resultOf(src), resultOf(dep));
3917	>	}
3918
3919	<	/**
3920	<	* thenComposeAsync result completes exceptionally if source cancelled
3921	<	*/
3922	<	public void testThenComposeAsync4E() {
3923	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3924	<	CompletableFutureInc r = new CompletableFutureInc();
3925	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
3926	<	assertTrue(f.cancel(true));
3927	<	checkCompletedWithWrappedCancellationException(g);
3928	<	}
3919	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3920	>	fun : funs) {
3921	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3922	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3923	>	CompletableFuture<?> dep = fun.apply(src);
3924	>	f.completeExceptionally(ex);
3925	>	checkCompletedWithWrappedException(src, ex);
3926	>	checkCompletedWithWrappedException(dep, ex);
3927	>	assertSame(resultOf(src), resultOf(dep));
3928	>	}
3929
3930	<	// other static methods
3930	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3931	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3932	>	fun : funs) {
3933	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3934	>	f.cancel(mayInterruptIfRunning);
3935	>	checkCancelled(f);
3936	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3937	>	checkCompletedWithWrappedCancellationException(src);
3938	>	CompletableFuture<?> dep = fun.apply(src);
3939	>	checkCompletedWithWrappedCancellationException(dep);
3940	>	assertSame(resultOf(src), resultOf(dep));
3941	>	}
3942
3943	<	/**
3944	<	* allOf(no component futures) returns a future completed normally
3945	<	* with the value null
3946	<	*/
3947	<	public void testAllOf_empty() throws Exception {
3948	<	CompletableFuture<Void> f = CompletableFuture.allOf();
3949	<	checkCompletedNormally(f, null);
3950	<	}
3943	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3944	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3945	>	fun : funs) {
3946	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3947	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3948	>	CompletableFuture<?> dep = fun.apply(src);
3949	>	f.cancel(mayInterruptIfRunning);
3950	>	checkCancelled(f);
3951	>	checkCompletedWithWrappedCancellationException(src);
3952	>	checkCompletedWithWrappedCancellationException(dep);
3953	>	assertSame(resultOf(src), resultOf(dep));
3954	>	}
3955	>	}}
3956
3957		/**
3958	<	* allOf returns a future completed normally with the value null
2860	<	* when all components complete normally
3958	>	* Minimal completion stages throw UOE for most non-CompletionStage methods
3959		*/
3960	<	public void testAllOf_normal() throws Exception {
3961	<	for (int k = 1; k < 20; ++k) {
3962	<	CompletableFuture<Integer>[] fs = (CompletableFuture<Integer>[]) new CompletableFuture[k];
3963	<	for (int i = 0; i < k; ++i)
3964	<	fs[i] = new CompletableFuture<>();
3965	<	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3966	<	for (int i = 0; i < k; ++i) {
3967	<	checkIncomplete(f);
3968	<	checkIncomplete(CompletableFuture.allOf(fs));
3969	<	fs[i].complete(one);
3960	>	public void testMinimalCompletionStage_minimality() {
3961	>	if (!testImplementationDetails) return;
3962	>	Function<Method, String> toSignature =
3963	>	method -> method.getName() + Arrays.toString(method.getParameterTypes());
3964	>	Predicate<Method> isNotStatic =
3965	>	method -> (method.getModifiers() & Modifier.STATIC) == 0;
3966	>	List<Method> minimalMethods =
3967	>	Stream.of(Object.class, CompletionStage.class)
3968	>	.flatMap(klazz -> Stream.of(klazz.getMethods()))
3969	>	.filter(isNotStatic)
3970	>	.collect(Collectors.toList());
3971	>	// Methods from CompletableFuture permitted NOT to throw UOE
3972	>	String[] signatureWhitelist = {
3973	>	"newIncompleteFuture[]",
3974	>	"defaultExecutor[]",
3975	>	"minimalCompletionStage[]",
3976	>	"copy[]",
3977	>	};
3978	>	Set<String> permittedMethodSignatures =
3979	>	Stream.concat(minimalMethods.stream().map(toSignature),
3980	>	Stream.of(signatureWhitelist))
3981	>	.collect(Collectors.toSet());
3982	>	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
3983	>	.filter(isNotStatic)
3984	>	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
3985	>	.collect(Collectors.toList());
3986	>
3987	>	List<CompletionStage<Integer>> stages = new ArrayList<>();
3988	>	CompletionStage<Integer> min =
3989	>	new CompletableFuture<Integer>().minimalCompletionStage();
3990	>	stages.add(min);
3991	>	stages.add(min.thenApply(x -> x));
3992	>	stages.add(CompletableFuture.completedStage(1));
3993	>	stages.add(CompletableFuture.failedStage(new CFException()));
3994	>
3995	>	List<Method> bugs = new ArrayList<>();
3996	>	for (Method method : allMethods) {
3997	>	Class<?>[] parameterTypes = method.getParameterTypes();
3998	>	Object[] args = new Object[parameterTypes.length];
3999	>	// Manufacture boxed primitives for primitive params
4000	>	for (int i = 0; i < args.length; i++) {
4001	>	Class<?> type = parameterTypes[i];
4002	>	if (parameterTypes[i] == boolean.class)
4003	>	args[i] = false;
4004	>	else if (parameterTypes[i] == int.class)
4005	>	args[i] = 0;
4006	>	else if (parameterTypes[i] == long.class)
4007	>	args[i] = 0L;
4008	>	}
4009	>	for (CompletionStage<Integer> stage : stages) {
4010	>	try {
4011	>	method.invoke(stage, args);
4012	>	bugs.add(method);
4013	>	}
4014	>	catch (java.lang.reflect.InvocationTargetException expected) {
4015	>	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4016	>	bugs.add(method);
4017	>	// expected.getCause().printStackTrace();
4018	>	}
4019	>	}
4020	>	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4021		}
2873	–	checkCompletedNormally(f, null);
2874	–	checkCompletedNormally(CompletableFuture.allOf(fs), null);
4022		}
4023	+	if (!bugs.isEmpty())
4024	+	throw new Error("Methods did not throw UOE: " + bugs);
4025		}
4026
4027		/**
4028	<	* anyOf(no component futures) returns an incomplete future
4029	<	*/
2881	<	public void testAnyOf_empty() throws Exception {
2882	<	CompletableFuture<Object> f = CompletableFuture.anyOf();
2883	<	checkIncomplete(f);
2884	<	}
2885	<
2886	<	/**
2887	<	* anyOf returns a future completed normally with a value when
2888	<	* a component future does
4028	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4029	>	* is completed normally, with the same value, when source is.
4030		*/
4031	<	public void testAnyOf_normal() throws Exception {
4032	<	for (int k = 0; k < 10; ++k) {
4033	<	CompletableFuture[] fs = new CompletableFuture[k];
4034	<	for (int i = 0; i < k; ++i)
4035	<	fs[i] = new CompletableFuture<>();
4036	<	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
4031	>	public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() {
4032	>	for (boolean createIncomplete : new boolean[] { true, false })
4033	>	for (Integer v1 : new Integer[] { 1, null })
4034	>	{
4035	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4036	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4037	>	if (!createIncomplete) assertTrue(f.complete(v1));
4038	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4039	>	if (createIncomplete) {
4040		checkIncomplete(f);
4041	<	for (int i = 0; i < k; ++i) {
4042	<	fs[i].complete(one);
2899	<	checkCompletedNormally(f, one);
2900	<	checkCompletedNormally(CompletableFuture.anyOf(fs), one);
2901	<	}
4041	>	checkIncomplete(g);
4042	>	assertTrue(f.complete(v1));
4043		}
4044	<	}
4045	<
4046	<	/**
4047	<	* anyOf result completes exceptionally when any component does.
4048	<	*/
4049	<	public void testAnyOf_exceptional() throws Exception {
4050	<	for (int k = 0; k < 10; ++k) {
4051	<	CompletableFuture[] fs = new CompletableFuture[k];
4052	<	for (int i = 0; i < k; ++i)
4053	<	fs[i] = new CompletableFuture<>();
4054	<	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
4044	>	checkCompletedNormally(f, v1);
4045	>	checkCompletedNormally(g, v1);
4046	>	}}
4047	>
4048	>	/**
4049	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4050	>	* is completed exceptionally when source is.
4051	>	*/
4052	>	public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() {
4053	>	for (boolean createIncomplete : new boolean[] { true, false })
4054	>	{
4055	>	CFException ex = new CFException();
4056	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4057	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4058	>	if (!createIncomplete) f.completeExceptionally(ex);
4059	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4060	>	if (createIncomplete) {
4061		checkIncomplete(f);
4062	<	for (int i = 0; i < k; ++i) {
4063	<	fs[i].completeExceptionally(new CFException());
2917	<	checkCompletedWithWrappedCFException(f);
2918	<	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
2919	<	}
4062	>	checkIncomplete(g);
4063	>	f.completeExceptionally(ex);
4064		}
4065	<	}
4065	>	checkCompletedExceptionally(f, ex);
4066	>	checkCompletedWithWrappedException(g, ex);
4067	>	}}
4068
4069		/**
4070	<	* Completion methods throw NullPointerException with null arguments
4070	>	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4071		*/
4072	<	public void testNPE() {
4072	>	public void testMinimalCompletionStage_toCompletableFuture_mutable() {
4073	>	for (Integer v1 : new Integer[] { 1, null })
4074	>	{
4075		CompletableFuture<Integer> f = new CompletableFuture<>();
4076	<	CompletableFuture<Integer> g = new CompletableFuture<>();
4077	<	CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
4078	<	CompletableFuture<?> h;
4079	<	ThreadExecutor exec = new ThreadExecutor();
4080	<
4081	<	Runnable[] throwingActions = {
4082	<	() -> { CompletableFuture.supplyAsync(null); },
2935	<	() -> { CompletableFuture.supplyAsync(null, exec); },
2936	<	() -> { CompletableFuture.supplyAsync(supplyOne, null); },
2937	<
2938	<	() -> { CompletableFuture.runAsync(null); },
2939	<	() -> { CompletableFuture.runAsync(null, exec); },
2940	<	() -> { CompletableFuture.runAsync(() -> {}, null); },
2941	<
2942	<	() -> { f.completeExceptionally(null); },
2943	<
2944	<	() -> { f.thenApply(null); },
2945	<	() -> { f.thenApplyAsync(null); },
2946	<	() -> { f.thenApplyAsync((x) -> x, null); },
2947	<	() -> { f.thenApplyAsync(null, exec); },
2948	<
2949	<	() -> { f.thenAccept(null); },
2950	<	() -> { f.thenAcceptAsync(null); },
2951	<	() -> { f.thenAcceptAsync((x) -> { ; }, null); },
2952	<	() -> { f.thenAcceptAsync(null, exec); },
2953	<
2954	<	() -> { f.thenRun(null); },
2955	<	() -> { f.thenRunAsync(null); },
2956	<	() -> { f.thenRunAsync(() -> { ; }, null); },
2957	<	() -> { f.thenRunAsync(null, exec); },
2958	<
2959	<	() -> { f.thenCombine(g, null); },
2960	<	() -> { f.thenCombineAsync(g, null); },
2961	<	() -> { f.thenCombineAsync(g, null, exec); },
2962	<	() -> { f.thenCombine(nullFuture, (x, y) -> x); },
2963	<	() -> { f.thenCombineAsync(nullFuture, (x, y) -> x); },
2964	<	() -> { f.thenCombineAsync(nullFuture, (x, y) -> x, exec); },
2965	<	() -> { f.thenCombineAsync(g, (x, y) -> x, null); },
2966	<
2967	<	() -> { f.thenAcceptBoth(g, null); },
2968	<	() -> { f.thenAcceptBothAsync(g, null); },
2969	<	() -> { f.thenAcceptBothAsync(g, null, exec); },
2970	<	() -> { f.thenAcceptBoth(nullFuture, (x, y) -> {}); },
2971	<	() -> { f.thenAcceptBothAsync(nullFuture, (x, y) -> {}); },
2972	<	() -> { f.thenAcceptBothAsync(nullFuture, (x, y) -> {}, exec); },
2973	<	() -> { f.thenAcceptBothAsync(g, (x, y) -> {}, null); },
2974	<
2975	<	() -> { f.runAfterBoth(g, null); },
2976	<	() -> { f.runAfterBothAsync(g, null); },
2977	<	() -> { f.runAfterBothAsync(g, null, exec); },
2978	<	() -> { f.runAfterBoth(nullFuture, () -> {}); },
2979	<	() -> { f.runAfterBothAsync(nullFuture, () -> {}); },
2980	<	() -> { f.runAfterBothAsync(nullFuture, () -> {}, exec); },
2981	<	() -> { f.runAfterBothAsync(g, () -> {}, null); },
2982	<
2983	<	() -> { f.applyToEither(g, null); },
2984	<	() -> { f.applyToEitherAsync(g, null); },
2985	<	() -> { f.applyToEitherAsync(g, null, exec); },
2986	<	() -> { f.applyToEither(nullFuture, (x) -> x); },
2987	<	() -> { f.applyToEitherAsync(nullFuture, (x) -> x); },
2988	<	() -> { f.applyToEitherAsync(nullFuture, (x) -> x, exec); },
2989	<	() -> { f.applyToEitherAsync(g, (x) -> x, null); },
2990	<
2991	<	() -> { f.acceptEither(g, null); },
2992	<	() -> { f.acceptEitherAsync(g, null); },
2993	<	() -> { f.acceptEitherAsync(g, null, exec); },
2994	<	() -> { f.acceptEither(nullFuture, (x) -> {}); },
2995	<	() -> { f.acceptEitherAsync(nullFuture, (x) -> {}); },
2996	<	() -> { f.acceptEitherAsync(nullFuture, (x) -> {}, exec); },
2997	<	() -> { f.acceptEitherAsync(g, (x) -> {}, null); },
2998	<
2999	<	() -> { f.runAfterEither(g, null); },
3000	<	() -> { f.runAfterEitherAsync(g, null); },
3001	<	() -> { f.runAfterEitherAsync(g, null, exec); },
3002	<	() -> { f.runAfterEither(nullFuture, () -> {}); },
3003	<	() -> { f.runAfterEitherAsync(nullFuture, () -> {}); },
3004	<	() -> { f.runAfterEitherAsync(nullFuture, () -> {}, exec); },
3005	<	() -> { f.runAfterEitherAsync(g, () -> {}, null); },
3006	<
3007	<	() -> { f.thenCompose(null); },
3008	<	() -> { f.thenComposeAsync(null); },
3009	<	() -> { f.thenComposeAsync(new CompletableFutureInc(), null); },
3010	<	() -> { f.thenComposeAsync(null, exec); },
3011	<
3012	<	() -> { f.exceptionally(null); },
3013	<
3014	<	() -> { f.handle(null); },
3015	<
3016	<	() -> { CompletableFuture.allOf((CompletableFuture<?>)null); },
3017	<	() -> { CompletableFuture.allOf((CompletableFuture<?>[])null); },
3018	<	() -> { CompletableFuture.allOf(f, null); },
3019	<	() -> { CompletableFuture.allOf(null, f); },
3020	<
3021	<	() -> { CompletableFuture.anyOf((CompletableFuture<?>)null); },
3022	<	() -> { CompletableFuture.anyOf((CompletableFuture<?>[])null); },
3023	<	() -> { CompletableFuture.anyOf(f, null); },
3024	<	() -> { CompletableFuture.anyOf(null, f); },
3025	<	};
3026	<
3027	<	assertThrows(NullPointerException.class, throwingActions);
3028	<	assertEquals(0, exec.count.get());
3029	<	}
4076	>	CompletionStage minimal = f.minimalCompletionStage();
4077	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4078	>	assertTrue(g.complete(v1));
4079	>	checkCompletedNormally(g, v1);
4080	>	checkIncomplete(f);
4081	>	checkIncomplete(minimal.toCompletableFuture());
4082	>	}}
4083
4084		/**
4085	<	* toCompletableFuture returns this CompletableFuture.
4085	>	* minimalStage.toCompletableFuture().join() awaits completion
4086		*/
4087	<	public void testToCompletableFuture() {
4088	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4089	<	assertSame(f, f.toCompletableFuture());
4087	>	public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception {
4088	>	for (boolean createIncomplete : new boolean[] { true, false })
4089	>	for (Integer v1 : new Integer[] { 1, null })
4090	>	{
4091	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4092	>	if (!createIncomplete) assertTrue(f.complete(v1));
4093	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4094	>	if (createIncomplete) assertTrue(f.complete(v1));
4095	>	assertEquals(v1, minimal.toCompletableFuture().join());
4096	>	assertEquals(v1, minimal.toCompletableFuture().get());
4097	>	checkCompletedNormally(minimal.toCompletableFuture(), v1);
4098	>	}}
4099	>
4100	>	/**
4101	>	* Completion of a toCompletableFuture copy of a minimal stage
4102	>	* does not complete its source.
4103	>	*/
4104	>	public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() {
4105	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4106	>	CompletionStage<Integer> g = f.minimalCompletionStage();
4107	>	assertTrue(g.toCompletableFuture().complete(1));
4108	>	assertTrue(g.toCompletableFuture().complete(null));
4109	>	assertTrue(g.toCompletableFuture().cancel(true));
4110	>	assertTrue(g.toCompletableFuture().cancel(false));
4111	>	assertTrue(g.toCompletableFuture().completeExceptionally(new CFException()));
4112	>	checkIncomplete(g.toCompletableFuture());
4113	>	f.complete(1);
4114	>	checkCompletedNormally(g.toCompletableFuture(), 1);
4115		}
4116
4117	<	/**
4118	<	* whenComplete action executes on normal completion, propagating
4119	<	* source result.
4120	<	*/
4121	<	public void testWhenComplete1() {
4122	<	final AtomicInteger a = new AtomicInteger();
4123	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4124	<	CompletableFuture<Integer> g =
4125	<	f.whenComplete((Integer x, Throwable t) -> a.getAndIncrement());
3048	<	f.complete(three);
3049	<	checkCompletedNormally(f, three);
3050	<	checkCompletedNormally(g, three);
3051	<	assertEquals(a.get(), 1);
4117	>	/** Demo utility method for external reliable toCompletableFuture */
4118	>	static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) {
4119	>	CompletableFuture<T> f = new CompletableFuture<>();
4120	>	stage.handle((T t, Throwable ex) -> {
4121	>	if (ex != null) f.completeExceptionally(ex);
4122	>	else f.complete(t);
4123	>	return null;
4124	>	});
4125	>	return f;
4126		}
4127
4128	<	/**
4129	<	* whenComplete action executes on exceptional completion, propagating
4130	<	* source result.
3057	<	*/
3058	<	public void testWhenComplete2() {
3059	<	final AtomicInteger a = new AtomicInteger();
3060	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3061	<	CompletableFuture<Integer> g =
3062	<	f.whenComplete((Integer x, Throwable t) -> a.getAndIncrement());
3063	<	f.completeExceptionally(new CFException());
3064	<	assertTrue(f.isCompletedExceptionally());
3065	<	assertTrue(g.isCompletedExceptionally());
3066	<	assertEquals(a.get(), 1);
4128	>	/** Demo utility method to join a CompletionStage */
4129	>	static <T> T join(CompletionStage<T> stage) {
4130	>	return toCompletableFuture(stage).join();
4131		}
4132
4133		/**
4134	<	* If a whenComplete action throws an exception when triggered by
3071	<	* a normal completion, it completes exceptionally
4134	>	* Joining a minimal stage "by hand" works
4135		*/
4136	<	public void testWhenComplete3() {
4136	>	public void testMinimalCompletionStage_join_by_hand() {
4137	>	for (boolean createIncomplete : new boolean[] { true, false })
4138	>	for (Integer v1 : new Integer[] { 1, null })
4139	>	{
4140		CompletableFuture<Integer> f = new CompletableFuture<>();
4141	<	CompletableFuture<Integer> g =
4142	<	f.whenComplete((Integer x, Throwable t) ->
4143	<	{ throw new CFException(); } );
4144	<	f.complete(three);
4145	<	checkCompletedNormally(f, three);
4146	<	assertTrue(g.isCompletedExceptionally());
4147	<	checkCompletedWithWrappedCFException(g);
4148	<	}
4141	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4142	>	CompletableFuture<Integer> g = new CompletableFuture<>();
4143	>	if (!createIncomplete) assertTrue(f.complete(v1));
4144	>	minimal.thenAccept(x -> g.complete(x));
4145	>	if (createIncomplete) assertTrue(f.complete(v1));
4146	>	g.join();
4147	>	checkCompletedNormally(g, v1);
4148	>	checkCompletedNormally(f, v1);
4149	>	assertEquals(v1, join(minimal));
4150	>	}}
4151	>
4152	>	static class Monad {
4153	>	static class ZeroException extends RuntimeException {
4154	>	public ZeroException() { super("monadic zero"); }
4155	>	}
4156	>	// "return", "unit"
4157	>	static <T> CompletableFuture<T> unit(T value) {
4158	>	return completedFuture(value);
4159	>	}
4160	>	// monadic zero ?
4161	>	static <T> CompletableFuture<T> zero() {
4162	>	return failedFuture(new ZeroException());
4163	>	}
4164	>	// >=>
4165	>	static <T,U,V> Function<T, CompletableFuture<V>> compose
4166	>	(Function<T, CompletableFuture<U>> f,
4167	>	Function<U, CompletableFuture<V>> g) {
4168	>	return x -> f.apply(x).thenCompose(g);
4169	>	}
4170
4171	<	/**
4172	<	* whenCompleteAsync action executes on normal completion, propagating
4173	<	* source result.
4174	<	*/
4175	<	public void testWhenCompleteAsync1() {
4176	<	final AtomicInteger a = new AtomicInteger();
4177	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4178	<	CompletableFuture<Integer> g =
3092	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement());
3093	<	f.complete(three);
3094	<	checkCompletedNormally(f, three);
3095	<	checkCompletedNormally(g, three);
3096	<	assertEquals(a.get(), 1);
3097	<	}
4171	>	static void assertZero(CompletableFuture<?> f) {
4172	>	try {
4173	>	f.getNow(null);
4174	>	throw new AssertionFailedError("should throw");
4175	>	} catch (CompletionException success) {
4176	>	assertTrue(success.getCause() instanceof ZeroException);
4177	>	}
4178	>	}
4179
4180	<	/**
4181	<	* whenCompleteAsync action executes on exceptional completion, propagating
4182	<	* source result.
4183	<	*/
4184	<	public void testWhenCompleteAsync2() {
4185	<	final AtomicInteger a = new AtomicInteger();
4186	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4187	<	CompletableFuture<Integer> g =
4188	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement());
4189	<	f.completeExceptionally(new CFException());
4190	<	checkCompletedWithWrappedCFException(f);
4191	<	checkCompletedWithWrappedCFException(g);
4192	<	}
4180	>	static <T> void assertFutureEquals(CompletableFuture<T> f,
4181	>	CompletableFuture<T> g) {
4182	>	T fval = null, gval = null;
4183	>	Throwable fex = null, gex = null;
4184	>
4185	>	try { fval = f.get(); }
4186	>	catch (ExecutionException ex) { fex = ex.getCause(); }
4187	>	catch (Throwable ex) { fex = ex; }
4188	>
4189	>	try { gval = g.get(); }
4190	>	catch (ExecutionException ex) { gex = ex.getCause(); }
4191	>	catch (Throwable ex) { gex = ex; }
4192	>
4193	>	if (fex != null || gex != null)
4194	>	assertSame(fex.getClass(), gex.getClass());
4195	>	else
4196	>	assertEquals(fval, gval);
4197	>	}
4198
4199	<	/**
4200	<	* If a whenCompleteAsync action throws an exception when
4201	<	* triggered by a normal completion, it completes exceptionally
3116	<	*/
3117	<	public void testWhenCompleteAsync3() {
3118	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3119	<	CompletableFuture<Integer> g =
3120	<	f.whenCompleteAsync((Integer x, Throwable t) ->
3121	<	{ throw new CFException(); } );
3122	<	f.complete(three);
3123	<	checkCompletedNormally(f, three);
3124	<	checkCompletedWithWrappedCFException(g);
3125	<	}
4199	>	static class PlusFuture<T> extends CompletableFuture<T> {
4200	>	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4201	>	}
4202
4203	<	/**
4204	<	* whenCompleteAsync action executes on normal completion, propagating
4205	<	* source result.
4206	<	*/
4207	<	public void testWhenCompleteAsync1e() {
4208	<	final AtomicInteger a = new AtomicInteger();
4209	<	ThreadExecutor exec = new ThreadExecutor();
4210	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4211	<	CompletableFuture<Integer> g =
4212	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement(),
4213	<	exec);
4214	<	f.complete(three);
4215	<	checkCompletedNormally(f, three);
4216	<	checkCompletedNormally(g, three);
4217	<	assertEquals(a.get(), 1);
4203	>	/** Implements "monadic plus". */
4204	>	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
4205	>	CompletableFuture<? extends T> g) {
4206	>	PlusFuture<T> plus = new PlusFuture<T>();
4207	>	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
4208	>	try {
4209	>	if (ex == null) {
4210	>	if (plus.complete(result))
4211	>	if (plus.firstFailure.get() != null)
4212	>	plus.firstFailure.set(null);
4213	>	}
4214	>	else if (plus.firstFailure.compareAndSet(null, ex)) {
4215	>	if (plus.isDone())
4216	>	plus.firstFailure.set(null);
4217	>	}
4218	>	else {
4219	>	// first failure has precedence
4220	>	Throwable first = plus.firstFailure.getAndSet(null);
4221	>
4222	>	// may fail with "Self-suppression not permitted"
4223	>	try { first.addSuppressed(ex); }
4224	>	catch (Exception ignored) {}
4225	>
4226	>	plus.completeExceptionally(first);
4227	>	}
4228	>	} catch (Throwable unexpected) {
4229	>	plus.completeExceptionally(unexpected);
4230	>	}
4231	>	};
4232	>	f.whenComplete(action);
4233	>	g.whenComplete(action);
4234	>	return plus;
4235	>	}
4236		}
4237
4238		/**
4239	<	* whenCompleteAsync action executes on exceptional completion, propagating
4240	<	* source result.
4239	>	* CompletableFuture is an additive monad - sort of.
4240	>	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
4241		*/
4242	<	public void testWhenCompleteAsync2e() {
4243	<	final AtomicInteger a = new AtomicInteger();
4244	<	ThreadExecutor exec = new ThreadExecutor();
4245	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4246	<	CompletableFuture<Integer> g =
4247	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement(),
4248	<	exec);
4249	<	f.completeExceptionally(new CFException());
4250	<	checkCompletedWithWrappedCFException(f);
4251	<	checkCompletedWithWrappedCFException(g);
4252	<	}
4242	>	public void testAdditiveMonad() throws Throwable {
4243	>	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
4244	>	CompletableFuture<Long> zero = Monad.zero();
4245	>
4246	>	// Some mutually non-commutative functions
4247	>	Function<Long, CompletableFuture<Long>> triple
4248	>	= x -> Monad.unit(3 * x);
4249	>	Function<Long, CompletableFuture<Long>> inc
4250	>	= x -> Monad.unit(x + 1);
4251	>
4252	>	// unit is a right identity: m >>= unit === m
4253	>	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
4254	>	inc.apply(5L));
4255	>	// unit is a left identity: (unit x) >>= f === f x
4256	>	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
4257	>	inc.apply(5L));
4258	>
4259	>	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4260	>	Monad.assertFutureEquals(
4261	>	unit.apply(5L).thenCompose(inc).thenCompose(triple),
4262	>	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4263	>
4264	>	// The case for CompletableFuture as an additive monad is weaker...
4265	>
4266	>	// zero is a monadic zero
4267	>	Monad.assertZero(zero);
4268	>
4269	>	// left zero: zero >>= f === zero
4270	>	Monad.assertZero(zero.thenCompose(inc));
4271	>	// right zero: f >>= (\x -> zero) === zero
4272	>	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4273	>
4274	>	// f plus zero === f
4275	>	Monad.assertFutureEquals(Monad.unit(5L),
4276	>	Monad.plus(Monad.unit(5L), zero));
4277	>	// zero plus f === f
4278	>	Monad.assertFutureEquals(Monad.unit(5L),
4279	>	Monad.plus(zero, Monad.unit(5L)));
4280	>	// zero plus zero === zero
4281	>	Monad.assertZero(Monad.plus(zero, zero));
4282	>	{
4283	>	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
4284	>	Monad.unit(8L));
4285	>	// non-determinism
4286	>	assertTrue(f.get() == 5L || f.get() == 8L);
4287	>	}
4288
4289	<	/**
4290	<	* If a whenCompleteAsync action throws an exception when triggered
4291	<	* by a normal completion, it completes exceptionally
4292	<	*/
4293	<	public void testWhenCompleteAsync3e() {
4294	<	ThreadExecutor exec = new ThreadExecutor();
4295	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4296	<	CompletableFuture<Integer> g =
4297	<	f.whenCompleteAsync((Integer x, Throwable t) ->
4298	<	{ throw new CFException(); },
4299	<	exec);
4300	<	f.complete(three);
4301	<	checkCompletedNormally(f, three);
4302	<	checkCompletedWithWrappedCFException(g);
4289	>	CompletableFuture<Long> godot = new CompletableFuture<>();
4290	>	// f plus godot === f (doesn't wait for godot)
4291	>	Monad.assertFutureEquals(Monad.unit(5L),
4292	>	Monad.plus(Monad.unit(5L), godot));
4293	>	// godot plus f === f (doesn't wait for godot)
4294	>	Monad.assertFutureEquals(Monad.unit(5L),
4295	>	Monad.plus(godot, Monad.unit(5L)));
4296	>	}
4297	>
4298	>	/** Test long recursive chains of CompletableFutures with cascading completions */
4299	>	public void testRecursiveChains() throws Throwable {
4300	>	for (ExecutionMode m : ExecutionMode.values())
4301	>	for (boolean addDeadEnds : new boolean[] { true, false })
4302	>	{
4303	>	final int val = 42;
4304	>	final int n = expensiveTests ? 1_000 : 2;
4305	>	CompletableFuture<Integer> head = new CompletableFuture<>();
4306	>	CompletableFuture<Integer> tail = head;
4307	>	for (int i = 0; i < n; i++) {
4308	>	if (addDeadEnds) m.thenApply(tail, v -> v + 1);
4309	>	tail = m.thenApply(tail, v -> v + 1);
4310	>	if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1);
4311	>	tail = m.applyToEither(tail, tail, v -> v + 1);
4312	>	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1);
4313	>	tail = m.thenCombine(tail, tail, (v, w) -> v + 1);
4314	>	}
4315	>	head.complete(val);
4316	>	assertEquals(val + 3 * n, (int) tail.join());
4317	>	}}
4318	>
4319	>	/**
4320	>	* A single CompletableFuture with many dependents.
4321	>	* A demo of scalability - runtime is O(n).
4322	>	*/
4323	>	public void testManyDependents() throws Throwable {
4324	>	final int n = expensiveTests ? 1_000_000 : 10;
4325	>	final CompletableFuture<Void> head = new CompletableFuture<>();
4326	>	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4327	>	final AtomicInteger count = new AtomicInteger(0);
4328	>	for (int i = 0; i < n; i++) {
4329	>	head.thenRun(() -> count.getAndIncrement());
4330	>	head.thenAccept(x -> count.getAndIncrement());
4331	>	head.thenApply(x -> count.getAndIncrement());
4332	>
4333	>	head.runAfterBoth(complete, () -> count.getAndIncrement());
4334	>	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
4335	>	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
4336	>	complete.runAfterBoth(head, () -> count.getAndIncrement());
4337	>	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
4338	>	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4339	>
4340	>	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4341	>	head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4342	>	head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4343	>	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4344	>	new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement());
4345	>	new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement());
4346	>	}
4347	>	head.complete(null);
4348	>	assertEquals(5 * 3 * n, count.get());
4349		}
4350
4351	<	/**
4352	<	* handleAsync action completes normally with function value on
4353	<	* either normal or exceptional completion of source
4354	<	*/
4355	<	public void testHandleAsync() {
4356	<	CompletableFuture<Integer> f, g;
4357	<	IntegerHandler r;
4358	<
4359	<	f = new CompletableFuture<>();
4360	<	g = f.handleAsync(r = new IntegerHandler());
4361	<	assertFalse(r.ran);
4362	<	f.completeExceptionally(new CFException());
4363	<	checkCompletedWithWrappedCFException(f);
4364	<	checkCompletedNormally(g, three);
4365	<	assertTrue(r.ran);
4366	<
4367	<	f = new CompletableFuture<>();
4368	<	g = f.handleAsync(r = new IntegerHandler());
4369	<	assertFalse(r.ran);
4370	<	f.completeExceptionally(new CFException());
4371	<	checkCompletedWithWrappedCFException(f);
4372	<	checkCompletedNormally(g, three);
3198	<	assertTrue(r.ran);
3199	<
3200	<	f = new CompletableFuture<>();
3201	<	g = f.handleAsync(r = new IntegerHandler());
3202	<	assertFalse(r.ran);
3203	<	f.complete(one);
3204	<	checkCompletedNormally(f, one);
3205	<	checkCompletedNormally(g, two);
3206	<	assertTrue(r.ran);
4351	>	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4352	>	public void testCoCompletionGarbageRetention() throws Throwable {
4353	>	final int n = expensiveTests ? 1_000_000 : 10;
4354	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4355	>	CompletableFuture<Integer> f;
4356	>	for (int i = 0; i < n; i++) {
4357	>	f = new CompletableFuture<>();
4358	>	f.runAfterEither(incomplete, () -> {});
4359	>	f.complete(null);
4360	>
4361	>	f = new CompletableFuture<>();
4362	>	f.acceptEither(incomplete, x -> {});
4363	>	f.complete(null);
4364	>
4365	>	f = new CompletableFuture<>();
4366	>	f.applyToEither(incomplete, x -> x);
4367	>	f.complete(null);
4368	>
4369	>	f = new CompletableFuture<>();
4370	>	CompletableFuture.anyOf(new CompletableFuture<?>[] { f, incomplete });
4371	>	f.complete(null);
4372	>	}
4373
4374	<	f = new CompletableFuture<>();
4375	<	g = f.handleAsync(r = new IntegerHandler());
4376	<	assertFalse(r.ran);
4377	<	f.complete(one);
4378	<	checkCompletedNormally(f, one);
4379	<	checkCompletedNormally(g, two);
4380	<	assertTrue(r.ran);
4374	>	for (int i = 0; i < n; i++) {
4375	>	f = new CompletableFuture<>();
4376	>	incomplete.runAfterEither(f, () -> {});
4377	>	f.complete(null);
4378	>
4379	>	f = new CompletableFuture<>();
4380	>	incomplete.acceptEither(f, x -> {});
4381	>	f.complete(null);
4382	>
4383	>	f = new CompletableFuture<>();
4384	>	incomplete.applyToEither(f, x -> x);
4385	>	f.complete(null);
4386	>
4387	>	f = new CompletableFuture<>();
4388	>	CompletableFuture.anyOf(new CompletableFuture<?>[] { incomplete, f });
4389	>	f.complete(null);
4390	>	}
4391		}
4392
4393		/**
4394	<	* handleAsync action with Executor completes normally with
4395	<	* function value on either normal or exceptional completion of
4396	<	* source
4397	<	*/
4398	<	public void testHandleAsync2() {
4399	<	CompletableFuture<Integer> f, g;
4400	<	ThreadExecutor exec = new ThreadExecutor();
4401	<	IntegerHandler r;
4402	<
4403	<	f = new CompletableFuture<>();
4404	<	g = f.handleAsync(r = new IntegerHandler(), exec);
4405	<	assertFalse(r.ran);
4406	<	f.completeExceptionally(new CFException());
4407	<	checkCompletedWithWrappedCFException(f);
4408	<	checkCompletedNormally(g, three);
4409	<	assertTrue(r.ran);
4410	<
4411	<	f = new CompletableFuture<>();
4412	<	g = f.handleAsync(r = new IntegerHandler(), exec);
4413	<	assertFalse(r.ran);
4414	<	f.completeExceptionally(new CFException());
4415	<	checkCompletedWithWrappedCFException(f);
4416	<	checkCompletedNormally(g, three);
4417	<	assertTrue(r.ran);
4418	<
4419	<	f = new CompletableFuture<>();
4420	<	g = f.handleAsync(r = new IntegerHandler(), exec);
4421	<	assertFalse(r.ran);
4422	<	f.complete(one);
4423	<	checkCompletedNormally(f, one);
4424	<	checkCompletedNormally(g, two);
4425	<	assertTrue(r.ran);
4426	<
4427	<	f = new CompletableFuture<>();
4428	<	g = f.handleAsync(r = new IntegerHandler(), exec);
4429	<	assertFalse(r.ran);
4430	<	f.complete(one);
4431	<	checkCompletedNormally(f, one);
4432	<	checkCompletedNormally(g, two);
4433	<	assertTrue(r.ran);
4434	<	}
4394	>	* Reproduction recipe for:
4395	>	* 8160402: Garbage retention with CompletableFuture.anyOf
4396	>	* 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
4397	>	*/
4398	>	public void testAnyOfGarbageRetention() throws Throwable {
4399	>	for (Integer v : new Integer[] { 1, null })
4400	>	{
4401	>	final int n = expensiveTests ? 100_000 : 10;
4402	>	CompletableFuture<Integer>[] fs
4403	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4404	>	for (int i = 0; i < fs.length; i++)
4405	>	fs[i] = new CompletableFuture<>();
4406	>	fs[fs.length - 1].complete(v);
4407	>	for (int i = 0; i < n; i++)
4408	>	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4409	>	}}
4410	>
4411	>	/**
4412	>	* Checks for garbage retention with allOf.
4413	>	*
4414	>	* As of 2016-07, fails with OOME:
4415	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4416	>	*/
4417	>	public void testCancelledAllOfGarbageRetention() throws Throwable {
4418	>	final int n = expensiveTests ? 100_000 : 10;
4419	>	CompletableFuture<Integer>[] fs
4420	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4421	>	for (int i = 0; i < fs.length; i++)
4422	>	fs[i] = new CompletableFuture<>();
4423	>	for (int i = 0; i < n; i++)
4424	>	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4425	>	}
4426	>
4427	>	/**
4428	>	* Checks for garbage retention when a dependent future is
4429	>	* cancelled and garbage-collected.
4430	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4431	>	*
4432	>	* As of 2016-07, fails with OOME:
4433	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4434	>	*/
4435	>	public void testCancelledGarbageRetention() throws Throwable {
4436	>	final int n = expensiveTests ? 100_000 : 10;
4437	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4438	>	for (int i = 0; i < n; i++)
4439	>	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4440	>	}
4441	>
4442	>	/**
4443	>	* Checks for garbage retention when MinimalStage.toCompletableFuture()
4444	>	* is invoked many times.
4445	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4446	>	*
4447	>	* As of 2016-07, fails with OOME:
4448	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck
4449	>	*/
4450	>	public void testToCompletableFutureGarbageRetention() throws Throwable {
4451	>	final int n = expensiveTests ? 900_000 : 10;
4452	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4453	>	CompletionStage minimal = neverCompleted.minimalCompletionStage();
4454	>	for (int i = 0; i < n; i++)
4455	>	assertTrue(minimal.toCompletableFuture().cancel(true));
4456	>	}
4457	>
4458	>	//     static <U> U join(CompletionStage<U> stage) {
4459	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4460	>	//         stage.whenComplete((v, ex) -> {
4461	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4462	>	//         });
4463	>	//         return f.join();
4464	>	//     }
4465	>
4466	>	//     static <U> boolean isDone(CompletionStage<U> stage) {
4467	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4468	>	//         stage.whenComplete((v, ex) -> {
4469	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4470	>	//         });
4471	>	//         return f.isDone();
4472	>	//     }
4473	>
4474	>	//     static <U> U join2(CompletionStage<U> stage) {
4475	>	//         return stage.toCompletableFuture().copy().join();
4476	>	//     }
4477	>
4478	>	//     static <U> boolean isDone2(CompletionStage<U> stage) {
4479	>	//         return stage.toCompletableFuture().copy().isDone();
4480	>	//     }
4481
4482		}

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