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

Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.28 by jsr166, Sun Jul 14 16:34:49 2013 UTC vs.
Revision 1.187 by jsr166, Mon Jul 3 21:18:37 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	>	@SuppressWarnings("FutureReturnValueIgnored")
1242	>	public void testRunAsync_rejectingExecutor() {
1243	>	CountingRejectingExecutor e = new CountingRejectingExecutor();
1244	>	try {
1245	>	CompletableFuture.runAsync(() -> {}, e);
1246	>	shouldThrow();
1247	>	} catch (Throwable t) {
1248	>	assertSame(e.ex, t);
1249	>	}
1250
1251	<	/**
464	<	* supplyAsync completes with result of supplier
465	<	*/
466	<	public void testSupplyAsync() {
467	<	CompletableFuture<Integer> f;
468	<	f = CompletableFuture.supplyAsync(supplyOne);
469	<	assertEquals(f.join(), one);
470	<	checkCompletedNormally(f, one);
1251	>	assertEquals(1, e.count.get());
1252		}
1253
1254		/**
1255	<	* supplyAsync with executor completes with result of supplier
1255	>	* supplyAsync completes with result of supplier
1256		*/
1257	<	public void testSupplyAsync2() {
1258	<	CompletableFuture<Integer> f;
1259	<	f = CompletableFuture.supplyAsync(supplyOne, new ThreadExecutor());
1260	<	assertEquals(f.join(), one);
1261	<	checkCompletedNormally(f, one);
1262	<	}
1257	>	public void testSupplyAsync_normalCompletion() {
1258	>	ExecutionMode[] executionModes = {
1259	>	ExecutionMode.ASYNC,
1260	>	ExecutionMode.EXECUTOR,
1261	>	};
1262	>	for (ExecutionMode m : executionModes)
1263	>	for (Integer v1 : new Integer[] { 1, null })
1264	>	{
1265	>	final IntegerSupplier r = new IntegerSupplier(m, v1);
1266	>	final CompletableFuture<Integer> f = m.supplyAsync(r);
1267	>	assertSame(v1, f.join());
1268	>	checkCompletedNormally(f, v1);
1269	>	r.assertInvoked();
1270	>	}}
1271
1272		/**
1273		* Failing supplyAsync completes exceptionally
1274		*/
1275	<	public void testSupplyAsync3() {
1276	<	FailingSupplier r = new FailingSupplier();
1277	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(r);
1278	<	checkCompletedWithWrappedCFException(f);
1279	<	assertTrue(r.ran);
1275	>	public void testSupplyAsync_exceptionalCompletion() {
1276	>	ExecutionMode[] executionModes = {
1277	>	ExecutionMode.ASYNC,
1278	>	ExecutionMode.EXECUTOR,
1279	>	};
1280	>	for (ExecutionMode m : executionModes)
1281	>	{
1282	>	FailingSupplier r = new FailingSupplier(m);
1283	>	CompletableFuture<Integer> f = m.supplyAsync(r);
1284	>	checkCompletedWithWrappedException(f, r.ex);
1285	>	r.assertInvoked();
1286	>	}}
1287	>
1288	>	@SuppressWarnings("FutureReturnValueIgnored")
1289	>	public void testSupplyAsync_rejectingExecutor() {
1290	>	CountingRejectingExecutor e = new CountingRejectingExecutor();
1291	>	try {
1292	>	CompletableFuture.supplyAsync(() -> null, e);
1293	>	shouldThrow();
1294	>	} catch (Throwable t) {
1295	>	assertSame(e.ex, t);
1296	>	}
1297	>
1298	>	assertEquals(1, e.count.get());
1299		}
1300
1301		// seq completion methods
#	Line 495 | Line 1303 | public class CompletableFutureTest exten
1303		/**
1304		* thenRun result completes normally after normal completion of source
1305		*/
1306	<	public void testThenRun() {
1307	<	CompletableFuture<Integer> f;
1308	<	CompletableFuture<Void> g;
1309	<	Noop r;
1310	<
1311	<	f = new CompletableFuture<>();
1312	<	g = f.thenRun(r = new Noop());
1313	<	f.complete(null);
1314	<	checkCompletedNormally(g, null);
1315	<	assertTrue(r.ran);
1316	<
1317	<	f = new CompletableFuture<>();
1318	<	f.complete(null);
1319	<	g = f.thenRun(r = new Noop());
1320	<	checkCompletedNormally(g, null);
1321	<	assertTrue(r.ran);
1322	<	}
1306	>	public void testThenRun_normalCompletion() {
1307	>	for (ExecutionMode m : ExecutionMode.values())
1308	>	for (Integer v1 : new Integer[] { 1, null })
1309	>	{
1310	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1311	>	final Noop[] rs = new Noop[6];
1312	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1313	>
1314	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1315	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1316	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1317	>	checkIncomplete(h0);
1318	>	checkIncomplete(h1);
1319	>	checkIncomplete(h2);
1320	>	assertTrue(f.complete(v1));
1321	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1322	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1323	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1324	>
1325	>	checkCompletedNormally(h0, null);
1326	>	checkCompletedNormally(h1, null);
1327	>	checkCompletedNormally(h2, null);
1328	>	checkCompletedNormally(h3, null);
1329	>	checkCompletedNormally(h4, null);
1330	>	checkCompletedNormally(h5, null);
1331	>	checkCompletedNormally(f, v1);
1332	>	for (Noop r : rs) r.assertInvoked();
1333	>	}}
1334
1335		/**
1336		* thenRun result completes exceptionally after exceptional
1337		* completion of source
1338		*/
1339	<	public void testThenRun2() {
1340	<	CompletableFuture<Integer> f;
1341	<	CompletableFuture<Void> g;
1342	<	Noop r;
1343	<
1344	<	f = new CompletableFuture<>();
1345	<	g = f.thenRun(r = new Noop());
1346	<	f.completeExceptionally(new CFException());
1347	<	checkCompletedWithWrappedCFException(g);
1348	<	assertFalse(r.ran);
1349	<
1350	<	f = new CompletableFuture<>();
1351	<	f.completeExceptionally(new CFException());
1352	<	g = f.thenRun(r = new Noop());
1353	<	checkCompletedWithWrappedCFException(g);
1354	<	assertFalse(r.ran);
1355	<	}
1339	>	public void testThenRun_exceptionalCompletion() {
1340	>	for (ExecutionMode m : ExecutionMode.values())
1341	>	{
1342	>	final CFException ex = new CFException();
1343	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1344	>	final Noop[] rs = new Noop[6];
1345	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1346	>
1347	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1348	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1349	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1350	>	checkIncomplete(h0);
1351	>	checkIncomplete(h1);
1352	>	checkIncomplete(h2);
1353	>	assertTrue(f.completeExceptionally(ex));
1354	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1355	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1356	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1357	>
1358	>	checkCompletedWithWrappedException(h0, ex);
1359	>	checkCompletedWithWrappedException(h1, ex);
1360	>	checkCompletedWithWrappedException(h2, ex);
1361	>	checkCompletedWithWrappedException(h3, ex);
1362	>	checkCompletedWithWrappedException(h4, ex);
1363	>	checkCompletedWithWrappedException(h5, ex);
1364	>	checkCompletedExceptionally(f, ex);
1365	>	for (Noop r : rs) r.assertNotInvoked();
1366	>	}}
1367
1368		/**
1369	<	* thenRun result completes exceptionally if action does
1369	>	* thenRun result completes exceptionally if source cancelled
1370		*/
1371	<	public void testThenRun3() {
1372	<	CompletableFuture<Integer> f;
1373	<	CompletableFuture<Void> g;
1374	<	FailingNoop r;
1375	<
1376	<	f = new CompletableFuture<>();
1377	<	g = f.thenRun(r = new FailingNoop());
1378	<	f.complete(null);
1379	<	checkCompletedWithWrappedCFException(g);
1380	<
1381	<	f = new CompletableFuture<>();
1382	<	f.complete(null);
1383	<	g = f.thenRun(r = new FailingNoop());
1384	<	checkCompletedWithWrappedCFException(g);
1385	<	}
1371	>	public void testThenRun_sourceCancelled() {
1372	>	for (ExecutionMode m : ExecutionMode.values())
1373	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1374	>	{
1375	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1376	>	final Noop[] rs = new Noop[6];
1377	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1378	>
1379	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1380	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1381	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1382	>	checkIncomplete(h0);
1383	>	checkIncomplete(h1);
1384	>	checkIncomplete(h2);
1385	>	assertTrue(f.cancel(mayInterruptIfRunning));
1386	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1387	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1388	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1389	>
1390	>	checkCompletedWithWrappedCancellationException(h0);
1391	>	checkCompletedWithWrappedCancellationException(h1);
1392	>	checkCompletedWithWrappedCancellationException(h2);
1393	>	checkCompletedWithWrappedCancellationException(h3);
1394	>	checkCompletedWithWrappedCancellationException(h4);
1395	>	checkCompletedWithWrappedCancellationException(h5);
1396	>	checkCancelled(f);
1397	>	for (Noop r : rs) r.assertNotInvoked();
1398	>	}}
1399
1400		/**
1401	<	* thenRun result completes exceptionally if source cancelled
1401	>	* thenRun result completes exceptionally if action does
1402		*/
1403	<	public void testThenRun4() {
1404	<	CompletableFuture<Integer> f;
1405	<	CompletableFuture<Void> g;
1406	<	Noop r;
1407	<
1408	<	f = new CompletableFuture<>();
1409	<	g = f.thenRun(r = new Noop());
1410	<	assertTrue(f.cancel(true));
1411	<	checkCompletedWithWrappedCancellationException(g);
1412	<
1413	<	f = new CompletableFuture<>();
1414	<	assertTrue(f.cancel(true));
1415	<	g = f.thenRun(r = new Noop());
1416	<	checkCompletedWithWrappedCancellationException(g);
1417	<	}
1403	>	public void testThenRun_actionFailed() {
1404	>	for (ExecutionMode m : ExecutionMode.values())
1405	>	for (Integer v1 : new Integer[] { 1, null })
1406	>	{
1407	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1408	>	final FailingRunnable[] rs = new FailingRunnable[6];
1409	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1410	>
1411	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1412	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1413	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1414	>	assertTrue(f.complete(v1));
1415	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1416	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1417	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1418	>
1419	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1420	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1421	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1422	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1423	>	checkCompletedWithWrappedException(h4, rs[4].ex);
1424	>	checkCompletedWithWrappedException(h5, rs[5].ex);
1425	>	checkCompletedNormally(f, v1);
1426	>	}}
1427
1428		/**
1429		* thenApply result completes normally after normal completion of source
1430		*/
1431	<	public void testThenApply() {
1432	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1433	<	CompletableFuture<Integer> g = f.thenApply(inc);
1434	<	f.complete(one);
1435	<	checkCompletedNormally(g, two);
1436	<	}
1431	>	public void testThenApply_normalCompletion() {
1432	>	for (ExecutionMode m : ExecutionMode.values())
1433	>	for (Integer v1 : new Integer[] { 1, null })
1434	>	{
1435	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1436	>	final IncFunction[] rs = new IncFunction[4];
1437	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1438	>
1439	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1440	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1441	>	checkIncomplete(h0);
1442	>	checkIncomplete(h1);
1443	>	assertTrue(f.complete(v1));
1444	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1445	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1446	>
1447	>	checkCompletedNormally(h0, inc(v1));
1448	>	checkCompletedNormally(h1, inc(v1));
1449	>	checkCompletedNormally(h2, inc(v1));
1450	>	checkCompletedNormally(h3, inc(v1));
1451	>	checkCompletedNormally(f, v1);
1452	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1453	>	}}
1454
1455		/**
1456		* thenApply result completes exceptionally after exceptional
1457		* completion of source
1458		*/
1459	<	public void testThenApply2() {
1460	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1461	<	CompletableFuture<Integer> g = f.thenApply(inc);
1462	<	f.completeExceptionally(new CFException());
1463	<	checkCompletedWithWrappedCFException(g);
1464	<	}
1459	>	public void testThenApply_exceptionalCompletion() {
1460	>	for (ExecutionMode m : ExecutionMode.values())
1461	>	{
1462	>	final CFException ex = new CFException();
1463	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1464	>	final IncFunction[] rs = new IncFunction[4];
1465	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1466	>
1467	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1468	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1469	>	assertTrue(f.completeExceptionally(ex));
1470	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1471	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1472	>
1473	>	checkCompletedWithWrappedException(h0, ex);
1474	>	checkCompletedWithWrappedException(h1, ex);
1475	>	checkCompletedWithWrappedException(h2, ex);
1476	>	checkCompletedWithWrappedException(h3, ex);
1477	>	checkCompletedExceptionally(f, ex);
1478	>	for (IncFunction r : rs) r.assertNotInvoked();
1479	>	}}
1480
1481		/**
1482	<	* thenApply result completes exceptionally if action does
1482	>	* thenApply result completes exceptionally if source cancelled
1483		*/
1484	<	public void testThenApply3() {
1485	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1486	<	CompletableFuture<Integer> g = f.thenApply(new FailingFunction());
1487	<	f.complete(one);
1488	<	checkCompletedWithWrappedCFException(g);
1489	<	}
1484	>	public void testThenApply_sourceCancelled() {
1485	>	for (ExecutionMode m : ExecutionMode.values())
1486	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1487	>	{
1488	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1489	>	final IncFunction[] rs = new IncFunction[4];
1490	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1491	>
1492	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1493	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1494	>	assertTrue(f.cancel(mayInterruptIfRunning));
1495	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1496	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1497	>
1498	>	checkCompletedWithWrappedCancellationException(h0);
1499	>	checkCompletedWithWrappedCancellationException(h1);
1500	>	checkCompletedWithWrappedCancellationException(h2);
1501	>	checkCompletedWithWrappedCancellationException(h3);
1502	>	checkCancelled(f);
1503	>	for (IncFunction r : rs) r.assertNotInvoked();
1504	>	}}
1505
1506		/**
1507	<	* thenApply result completes exceptionally if source cancelled
1507	>	* thenApply result completes exceptionally if action does
1508		*/
1509	<	public void testThenApply4() {
1510	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1511	<	CompletableFuture<Integer> g = f.thenApply(inc);
1512	<	assertTrue(f.cancel(true));
1513	<	checkCompletedWithWrappedCancellationException(g);
1514	<	}
1509	>	public void testThenApply_actionFailed() {
1510	>	for (ExecutionMode m : ExecutionMode.values())
1511	>	for (Integer v1 : new Integer[] { 1, null })
1512	>	{
1513	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1514	>	final FailingFunction[] rs = new FailingFunction[4];
1515	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1516	>
1517	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1518	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1519	>	assertTrue(f.complete(v1));
1520	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1521	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1522	>
1523	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1524	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1525	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1526	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1527	>	checkCompletedNormally(f, v1);
1528	>	}}
1529
1530		/**
1531		* thenAccept result completes normally after normal completion of source
1532		*/
1533	<	public void testThenAccept() {
1534	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1535	<	IncAction r = new IncAction();
1536	<	CompletableFuture<Void> g = f.thenAccept(r);
1537	<	f.complete(one);
1538	<	checkCompletedNormally(g, null);
1539	<	assertEquals(r.value, 2);
1540	<	}
1533	>	public void testThenAccept_normalCompletion() {
1534	>	for (ExecutionMode m : ExecutionMode.values())
1535	>	for (Integer v1 : new Integer[] { 1, null })
1536	>	{
1537	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1538	>	final NoopConsumer[] rs = new NoopConsumer[4];
1539	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1540	>
1541	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1542	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1543	>	checkIncomplete(h0);
1544	>	checkIncomplete(h1);
1545	>	assertTrue(f.complete(v1));
1546	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1547	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1548	>
1549	>	checkCompletedNormally(h0, null);
1550	>	checkCompletedNormally(h1, null);
1551	>	checkCompletedNormally(h2, null);
1552	>	checkCompletedNormally(h3, null);
1553	>	checkCompletedNormally(f, v1);
1554	>	for (NoopConsumer r : rs) r.assertValue(v1);
1555	>	}}
1556
1557		/**
1558		* thenAccept result completes exceptionally after exceptional
1559		* completion of source
1560		*/
1561	<	public void testThenAccept2() {
1562	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1563	<	IncAction r = new IncAction();
1564	<	CompletableFuture<Void> g = f.thenAccept(r);
1565	<	f.completeExceptionally(new CFException());
1566	<	checkCompletedWithWrappedCFException(g);
1567	<	}
1561	>	public void testThenAccept_exceptionalCompletion() {
1562	>	for (ExecutionMode m : ExecutionMode.values())
1563	>	{
1564	>	final CFException ex = new CFException();
1565	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1566	>	final NoopConsumer[] rs = new NoopConsumer[4];
1567	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1568	>
1569	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1570	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1571	>	assertTrue(f.completeExceptionally(ex));
1572	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1573	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1574	>
1575	>	checkCompletedWithWrappedException(h0, ex);
1576	>	checkCompletedWithWrappedException(h1, ex);
1577	>	checkCompletedWithWrappedException(h2, ex);
1578	>	checkCompletedWithWrappedException(h3, ex);
1579	>	checkCompletedExceptionally(f, ex);
1580	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1581	>	}}
1582
1583		/**
1584	<	* thenAccept result completes exceptionally if action does
1584	>	* thenAccept result completes exceptionally if source cancelled
1585		*/
1586	<	public void testThenAccept3() {
1587	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1588	<	FailingConsumer r = new FailingConsumer();
1589	<	CompletableFuture<Void> g = f.thenAccept(r);
1590	<	f.complete(one);
1591	<	checkCompletedWithWrappedCFException(g);
1592	<	assertTrue(r.ran);
1593	<	}
1586	>	public void testThenAccept_sourceCancelled() {
1587	>	for (ExecutionMode m : ExecutionMode.values())
1588	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1589	>	{
1590	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1591	>	final NoopConsumer[] rs = new NoopConsumer[4];
1592	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1593	>
1594	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1595	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1596	>	assertTrue(f.cancel(mayInterruptIfRunning));
1597	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1598	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1599	>
1600	>	checkCompletedWithWrappedCancellationException(h0);
1601	>	checkCompletedWithWrappedCancellationException(h1);
1602	>	checkCompletedWithWrappedCancellationException(h2);
1603	>	checkCompletedWithWrappedCancellationException(h3);
1604	>	checkCancelled(f);
1605	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1606	>	}}
1607
1608		/**
1609	<	* thenAccept result completes exceptionally if source cancelled
1609	>	* thenAccept result completes exceptionally if action does
1610		*/
1611	<	public void testThenAccept4() {
1612	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1613	<	IncAction r = new IncAction();
1614	<	CompletableFuture<Void> g = f.thenAccept(r);
1615	<	assertTrue(f.cancel(true));
1616	<	checkCompletedWithWrappedCancellationException(g);
1617	<	}
1611	>	public void testThenAccept_actionFailed() {
1612	>	for (ExecutionMode m : ExecutionMode.values())
1613	>	for (Integer v1 : new Integer[] { 1, null })
1614	>	{
1615	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1616	>	final FailingConsumer[] rs = new FailingConsumer[4];
1617	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1618	>
1619	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1620	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1621	>	assertTrue(f.complete(v1));
1622	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1623	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1624	>
1625	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1626	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1627	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1628	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1629	>	checkCompletedNormally(f, v1);
1630	>	}}
1631
1632		/**
1633		* thenCombine result completes normally after normal completion
1634		* of sources
1635		*/
1636	<	public void testThenCombine() {
1637	<	CompletableFuture<Integer> f, g, h;
1638	<
1639	<	f = new CompletableFuture<>();
1640	<	g = new CompletableFuture<>();
1641	<	h = f.thenCombine(g, subtract);
1642	<	f.complete(3);
1643	<	checkIncomplete(h);
1644	<	g.complete(1);
1645	<	checkCompletedNormally(h, 2);
1646	<
1647	<	f = new CompletableFuture<>();
1648	<	g = new CompletableFuture<>();
1649	<	h = f.thenCombine(g, subtract);
1650	<	g.complete(1);
1651	<	checkIncomplete(h);
1652	<	f.complete(3);
1653	<	checkCompletedNormally(h, 2);
1654	<
1655	<	f = new CompletableFuture<>();
1656	<	g = new CompletableFuture<>();
1657	<	g.complete(1);
1658	<	f.complete(3);
1659	<	h = f.thenCombine(g, subtract);
1660	<	checkCompletedNormally(h, 2);
1661	<	}
1636	>	public void testThenCombine_normalCompletion() {
1637	>	for (ExecutionMode m : ExecutionMode.values())
1638	>	for (boolean fFirst : new boolean[] { true, false })
1639	>	for (Integer v1 : new Integer[] { 1, null })
1640	>	for (Integer v2 : new Integer[] { 2, null })
1641	>	{
1642	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1643	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1644	>	final SubtractFunction[] rs = new SubtractFunction[6];
1645	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1646	>
1647	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1648	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1649	>	final Integer w1 =  fFirst ? v1 : v2;
1650	>	final Integer w2 = !fFirst ? v1 : v2;
1651	>
1652	>	final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1653	>	final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1654	>	assertTrue(fst.complete(w1));
1655	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1656	>	final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1657	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1658	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1659	>	checkCompletedNormally(h1, subtract(w1, w1));
1660	>	checkCompletedNormally(h3, subtract(w1, w1));
1661	>	rs[1].assertValue(subtract(w1, w1));
1662	>	rs[3].assertValue(subtract(w1, w1));
1663	>	assertTrue(snd.complete(w2));
1664	>	final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1665	>
1666	>	checkCompletedNormally(h0, subtract(v1, v2));
1667	>	checkCompletedNormally(h2, subtract(v1, v2));
1668	>	checkCompletedNormally(h4, subtract(v1, v2));
1669	>	rs[0].assertValue(subtract(v1, v2));
1670	>	rs[2].assertValue(subtract(v1, v2));
1671	>	rs[4].assertValue(subtract(v1, v2));
1672	>
1673	>	checkCompletedNormally(f, v1);
1674	>	checkCompletedNormally(g, v2);
1675	>	}}
1676
1677		/**
1678		* thenCombine result completes exceptionally after exceptional
1679		* completion of either source
1680		*/
1681	<	public void testThenCombine2() {
1682	<	CompletableFuture<Integer> f, g, h;
1683	<
1684	<	f = new CompletableFuture<>();
1685	<	g = new CompletableFuture<>();
1686	<	h = f.thenCombine(g, subtract);
1687	<	f.completeExceptionally(new CFException());
1688	<	checkIncomplete(h);
1689	<	g.complete(1);
1690	<	checkCompletedWithWrappedCFException(h);
1691	<
1692	<	f = new CompletableFuture<>();
1693	<	g = new CompletableFuture<>();
1694	<	h = f.thenCombine(g, subtract);
1695	<	g.completeExceptionally(new CFException());
1696	<	checkIncomplete(h);
1697	<	f.complete(3);
1698	<	checkCompletedWithWrappedCFException(h);
1699	<
1700	<	f = new CompletableFuture<>();
1701	<	g = new CompletableFuture<>();
1702	<	f.complete(3);
1703	<	g.completeExceptionally(new CFException());
1704	<	h = f.thenCombine(g, subtract);
1705	<	checkCompletedWithWrappedCFException(h);
1706	<
1707	<	f = new CompletableFuture<>();
1708	<	g = new CompletableFuture<>();
1709	<	f.completeExceptionally(new CFException());
1710	<	g.complete(3);
1711	<	h = f.thenCombine(g, subtract);
1712	<	checkCompletedWithWrappedCFException(h);
1713	<	}
1681	>	public void testThenCombine_exceptionalCompletion() throws Throwable {
1682	>	for (ExecutionMode m : ExecutionMode.values())
1683	>	for (boolean fFirst : new boolean[] { true, false })
1684	>	for (boolean failFirst : new boolean[] { true, false })
1685	>	for (Integer v1 : new Integer[] { 1, null })
1686	>	{
1687	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1688	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1689	>	final CFException ex = new CFException();
1690	>	final SubtractFunction r1 = new SubtractFunction(m);
1691	>	final SubtractFunction r2 = new SubtractFunction(m);
1692	>	final SubtractFunction r3 = new SubtractFunction(m);
1693	>
1694	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1695	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1696	>	final Callable<Boolean> complete1 = failFirst ?
1697	>	() -> fst.completeExceptionally(ex) :
1698	>	() -> fst.complete(v1);
1699	>	final Callable<Boolean> complete2 = failFirst ?
1700	>	() -> snd.complete(v1) :
1701	>	() -> snd.completeExceptionally(ex);
1702	>
1703	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1704	>	assertTrue(complete1.call());
1705	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1706	>	checkIncomplete(h1);
1707	>	checkIncomplete(h2);
1708	>	assertTrue(complete2.call());
1709	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1710	>
1711	>	checkCompletedWithWrappedException(h1, ex);
1712	>	checkCompletedWithWrappedException(h2, ex);
1713	>	checkCompletedWithWrappedException(h3, ex);
1714	>	r1.assertNotInvoked();
1715	>	r2.assertNotInvoked();
1716	>	r3.assertNotInvoked();
1717	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1718	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1719	>	}}
1720
1721		/**
1722	<	* thenCombine result completes exceptionally if action does
1722	>	* thenCombine result completes exceptionally if either source cancelled
1723		*/
1724	<	public void testThenCombine3() {
1725	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1726	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1727	<	FailingBiFunction r = new FailingBiFunction();
1728	<	CompletableFuture<Integer> g = f.thenCombine(f2, r);
1729	<	f.complete(one);
1730	<	checkIncomplete(g);
1731	<	assertFalse(r.ran);
1732	<	f2.complete(two);
1733	<	checkCompletedWithWrappedCFException(g);
1734	<	assertTrue(r.ran);
1735	<	}
1724	>	public void testThenCombine_sourceCancelled() throws Throwable {
1725	>	for (ExecutionMode m : ExecutionMode.values())
1726	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1727	>	for (boolean fFirst : new boolean[] { true, false })
1728	>	for (boolean failFirst : new boolean[] { true, false })
1729	>	for (Integer v1 : new Integer[] { 1, null })
1730	>	{
1731	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1732	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1733	>	final SubtractFunction r1 = new SubtractFunction(m);
1734	>	final SubtractFunction r2 = new SubtractFunction(m);
1735	>	final SubtractFunction r3 = new SubtractFunction(m);
1736	>
1737	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1738	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1739	>	final Callable<Boolean> complete1 = failFirst ?
1740	>	() -> fst.cancel(mayInterruptIfRunning) :
1741	>	() -> fst.complete(v1);
1742	>	final Callable<Boolean> complete2 = failFirst ?
1743	>	() -> snd.complete(v1) :
1744	>	() -> snd.cancel(mayInterruptIfRunning);
1745	>
1746	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1747	>	assertTrue(complete1.call());
1748	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1749	>	checkIncomplete(h1);
1750	>	checkIncomplete(h2);
1751	>	assertTrue(complete2.call());
1752	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1753	>
1754	>	checkCompletedWithWrappedCancellationException(h1);
1755	>	checkCompletedWithWrappedCancellationException(h2);
1756	>	checkCompletedWithWrappedCancellationException(h3);
1757	>	r1.assertNotInvoked();
1758	>	r2.assertNotInvoked();
1759	>	r3.assertNotInvoked();
1760	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1761	>	checkCancelled(failFirst ? fst : snd);
1762	>	}}
1763
1764		/**
1765	<	* thenCombine result completes exceptionally if either source cancelled
1765	>	* thenCombine result completes exceptionally if action does
1766		*/
1767	<	public void testThenCombine4() {
1768	<	CompletableFuture<Integer> f, g, h;
1769	<
1770	<	f = new CompletableFuture<>();
1771	<	g = new CompletableFuture<>();
1772	<	h = f.thenCombine(g, subtract);
1773	<	assertTrue(f.cancel(true));
1774	<	checkIncomplete(h);
1775	<	g.complete(1);
1776	<	checkCompletedWithWrappedCancellationException(h);
1777	<
1778	<	f = new CompletableFuture<>();
1779	<	g = new CompletableFuture<>();
1780	<	h = f.thenCombine(g, subtract);
1781	<	assertTrue(g.cancel(true));
1782	<	checkIncomplete(h);
1783	<	f.complete(3);
1784	<	checkCompletedWithWrappedCancellationException(h);
1785	<
1786	<	f = new CompletableFuture<>();
1787	<	g = new CompletableFuture<>();
1788	<	assertTrue(f.cancel(true));
1789	<	assertTrue(g.cancel(true));
1790	<	h = f.thenCombine(g, subtract);
1791	<	checkCompletedWithWrappedCancellationException(h);
1792	<	}
1767	>	public void testThenCombine_actionFailed() {
1768	>	for (ExecutionMode m : ExecutionMode.values())
1769	>	for (boolean fFirst : new boolean[] { true, false })
1770	>	for (Integer v1 : new Integer[] { 1, null })
1771	>	for (Integer v2 : new Integer[] { 2, null })
1772	>	{
1773	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1774	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1775	>	final FailingBiFunction r1 = new FailingBiFunction(m);
1776	>	final FailingBiFunction r2 = new FailingBiFunction(m);
1777	>	final FailingBiFunction r3 = new FailingBiFunction(m);
1778	>
1779	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1780	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1781	>	final Integer w1 =  fFirst ? v1 : v2;
1782	>	final Integer w2 = !fFirst ? v1 : v2;
1783	>
1784	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1785	>	assertTrue(fst.complete(w1));
1786	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1787	>	assertTrue(snd.complete(w2));
1788	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1789	>
1790	>	checkCompletedWithWrappedException(h1, r1.ex);
1791	>	checkCompletedWithWrappedException(h2, r2.ex);
1792	>	checkCompletedWithWrappedException(h3, r3.ex);
1793	>	r1.assertInvoked();
1794	>	r2.assertInvoked();
1795	>	r3.assertInvoked();
1796	>	checkCompletedNormally(f, v1);
1797	>	checkCompletedNormally(g, v2);
1798	>	}}
1799
1800		/**
1801		* thenAcceptBoth result completes normally after normal
1802		* completion of sources
1803		*/
1804	<	public void testThenAcceptBoth() {
1805	<	CompletableFuture<Integer> f, g;
1806	<	CompletableFuture<Void> h;
1807	<	SubtractAction r;
1808	<
1809	<	f = new CompletableFuture<>();
1810	<	g = new CompletableFuture<>();
1811	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1812	<	f.complete(3);
1813	<	checkIncomplete(h);
1814	<	g.complete(1);
1815	<	checkCompletedNormally(h, null);
1816	<	assertEquals(r.value, 2);
1817	<
1818	<	f = new CompletableFuture<>();
1819	<	g = new CompletableFuture<>();
1820	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1821	<	g.complete(1);
1822	<	checkIncomplete(h);
1823	<	f.complete(3);
1824	<	checkCompletedNormally(h, null);
1825	<	assertEquals(r.value, 2);
1826	<
1827	<	f = new CompletableFuture<>();
1828	<	g = new CompletableFuture<>();
1829	<	g.complete(1);
1830	<	f.complete(3);
1831	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1832	<	checkCompletedNormally(h, null);
1833	<	assertEquals(r.value, 2);
1834	<	}
1804	>	public void testThenAcceptBoth_normalCompletion() {
1805	>	for (ExecutionMode m : ExecutionMode.values())
1806	>	for (boolean fFirst : new boolean[] { true, false })
1807	>	for (Integer v1 : new Integer[] { 1, null })
1808	>	for (Integer v2 : new Integer[] { 2, null })
1809	>	{
1810	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1811	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1812	>	final SubtractAction r1 = new SubtractAction(m);
1813	>	final SubtractAction r2 = new SubtractAction(m);
1814	>	final SubtractAction r3 = new SubtractAction(m);
1815	>
1816	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1817	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1818	>	final Integer w1 =  fFirst ? v1 : v2;
1819	>	final Integer w2 = !fFirst ? v1 : v2;
1820	>
1821	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1822	>	assertTrue(fst.complete(w1));
1823	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1824	>	checkIncomplete(h1);
1825	>	checkIncomplete(h2);
1826	>	r1.assertNotInvoked();
1827	>	r2.assertNotInvoked();
1828	>	assertTrue(snd.complete(w2));
1829	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1830	>
1831	>	checkCompletedNormally(h1, null);
1832	>	checkCompletedNormally(h2, null);
1833	>	checkCompletedNormally(h3, null);
1834	>	r1.assertValue(subtract(v1, v2));
1835	>	r2.assertValue(subtract(v1, v2));
1836	>	r3.assertValue(subtract(v1, v2));
1837	>	checkCompletedNormally(f, v1);
1838	>	checkCompletedNormally(g, v2);
1839	>	}}
1840
1841		/**
1842		* thenAcceptBoth result completes exceptionally after exceptional
1843		* completion of either source
1844		*/
1845	<	public void testThenAcceptBoth2() {
1846	<	CompletableFuture<Integer> f, g;
1847	<	CompletableFuture<Void> h;
1848	<	SubtractAction r;
1849	<
1850	<	f = new CompletableFuture<>();
1851	<	g = new CompletableFuture<>();
1852	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1853	<	f.completeExceptionally(new CFException());
1854	<	checkIncomplete(h);
1855	<	g.complete(1);
1856	<	checkCompletedWithWrappedCFException(h);
1857	<
1858	<	f = new CompletableFuture<>();
1859	<	g = new CompletableFuture<>();
1860	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1861	<	g.completeExceptionally(new CFException());
1862	<	checkIncomplete(h);
1863	<	f.complete(3);
1864	<	checkCompletedWithWrappedCFException(h);
1865	<
1866	<	f = new CompletableFuture<>();
1867	<	g = new CompletableFuture<>();
1868	<	f.complete(3);
1869	<	g.completeExceptionally(new CFException());
1870	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1871	<	checkCompletedWithWrappedCFException(h);
1872	<
1873	<	f = new CompletableFuture<>();
1874	<	g = new CompletableFuture<>();
1875	<	f.completeExceptionally(new CFException());
1876	<	g.complete(3);
1877	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1878	<	checkCompletedWithWrappedCFException(h);
1879	<	}
1845	>	public void testThenAcceptBoth_exceptionalCompletion() throws Throwable {
1846	>	for (ExecutionMode m : ExecutionMode.values())
1847	>	for (boolean fFirst : new boolean[] { true, false })
1848	>	for (boolean failFirst : new boolean[] { true, false })
1849	>	for (Integer v1 : new Integer[] { 1, null })
1850	>	{
1851	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1852	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1853	>	final CFException ex = new CFException();
1854	>	final SubtractAction r1 = new SubtractAction(m);
1855	>	final SubtractAction r2 = new SubtractAction(m);
1856	>	final SubtractAction r3 = new SubtractAction(m);
1857	>
1858	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1859	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1860	>	final Callable<Boolean> complete1 = failFirst ?
1861	>	() -> fst.completeExceptionally(ex) :
1862	>	() -> fst.complete(v1);
1863	>	final Callable<Boolean> complete2 = failFirst ?
1864	>	() -> snd.complete(v1) :
1865	>	() -> snd.completeExceptionally(ex);
1866	>
1867	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1868	>	assertTrue(complete1.call());
1869	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1870	>	checkIncomplete(h1);
1871	>	checkIncomplete(h2);
1872	>	assertTrue(complete2.call());
1873	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1874	>
1875	>	checkCompletedWithWrappedException(h1, ex);
1876	>	checkCompletedWithWrappedException(h2, ex);
1877	>	checkCompletedWithWrappedException(h3, ex);
1878	>	r1.assertNotInvoked();
1879	>	r2.assertNotInvoked();
1880	>	r3.assertNotInvoked();
1881	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1882	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1883	>	}}
1884
1885		/**
1886	<	* thenAcceptBoth result completes exceptionally if action does
1886	>	* thenAcceptBoth result completes exceptionally if either source cancelled
1887		*/
1888	<	public void testThenAcceptBoth3() {
1889	<	CompletableFuture<Integer> f, g;
1890	<	CompletableFuture<Void> h;
1891	<	FailingBiConsumer r;
1892	<
1893	<	f = new CompletableFuture<>();
1894	<	g = new CompletableFuture<>();
1895	<	h = f.thenAcceptBoth(g, r = new FailingBiConsumer());
1896	<	f.complete(3);
1897	<	checkIncomplete(h);
1898	<	g.complete(1);
1899	<	checkCompletedWithWrappedCFException(h);
1900	<
1901	<	f = new CompletableFuture<>();
1902	<	g = new CompletableFuture<>();
1903	<	f.complete(3);
1904	<	g.complete(1);
1905	<	h = f.thenAcceptBoth(g, r = new FailingBiConsumer());
1906	<	checkCompletedWithWrappedCFException(h);
1907	<	}
1888	>	public void testThenAcceptBoth_sourceCancelled() throws Throwable {
1889	>	for (ExecutionMode m : ExecutionMode.values())
1890	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1891	>	for (boolean fFirst : new boolean[] { true, false })
1892	>	for (boolean failFirst : new boolean[] { true, false })
1893	>	for (Integer v1 : new Integer[] { 1, null })
1894	>	{
1895	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1896	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1897	>	final SubtractAction r1 = new SubtractAction(m);
1898	>	final SubtractAction r2 = new SubtractAction(m);
1899	>	final SubtractAction r3 = new SubtractAction(m);
1900	>
1901	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1902	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1903	>	final Callable<Boolean> complete1 = failFirst ?
1904	>	() -> fst.cancel(mayInterruptIfRunning) :
1905	>	() -> fst.complete(v1);
1906	>	final Callable<Boolean> complete2 = failFirst ?
1907	>	() -> snd.complete(v1) :
1908	>	() -> snd.cancel(mayInterruptIfRunning);
1909	>
1910	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1911	>	assertTrue(complete1.call());
1912	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1913	>	checkIncomplete(h1);
1914	>	checkIncomplete(h2);
1915	>	assertTrue(complete2.call());
1916	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1917	>
1918	>	checkCompletedWithWrappedCancellationException(h1);
1919	>	checkCompletedWithWrappedCancellationException(h2);
1920	>	checkCompletedWithWrappedCancellationException(h3);
1921	>	r1.assertNotInvoked();
1922	>	r2.assertNotInvoked();
1923	>	r3.assertNotInvoked();
1924	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1925	>	checkCancelled(failFirst ? fst : snd);
1926	>	}}
1927
1928		/**
1929	<	* thenAcceptBoth result completes exceptionally if either source cancelled
1929	>	* thenAcceptBoth result completes exceptionally if action does
1930		*/
1931	<	public void testThenAcceptBoth4() {
1932	<	CompletableFuture<Integer> f, g;
1933	<	CompletableFuture<Void> h;
1934	<	SubtractAction r;
1935	<
1936	<	f = new CompletableFuture<>();
1937	<	g = new CompletableFuture<>();
1938	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1939	<	assertTrue(f.cancel(true));
1940	<	checkIncomplete(h);
1941	<	g.complete(1);
1942	<	checkCompletedWithWrappedCancellationException(h);
1943	<
1944	<	f = new CompletableFuture<>();
1945	<	g = new CompletableFuture<>();
1946	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1947	<	assertTrue(g.cancel(true));
1948	<	checkIncomplete(h);
1949	<	f.complete(3);
1950	<	checkCompletedWithWrappedCancellationException(h);
1951	<
1952	<	f = new CompletableFuture<>();
1953	<	g = new CompletableFuture<>();
1954	<	f.complete(3);
1955	<	assertTrue(g.cancel(true));
1956	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1957	<	checkCompletedWithWrappedCancellationException(h);
1958	<
1959	<	f = new CompletableFuture<>();
1960	<	g = new CompletableFuture<>();
1961	<	assertTrue(f.cancel(true));
1962	<	g.complete(3);
914	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
915	<	checkCompletedWithWrappedCancellationException(h);
916	<	}
1931	>	public void testThenAcceptBoth_actionFailed() {
1932	>	for (ExecutionMode m : ExecutionMode.values())
1933	>	for (boolean fFirst : new boolean[] { true, false })
1934	>	for (Integer v1 : new Integer[] { 1, null })
1935	>	for (Integer v2 : new Integer[] { 2, null })
1936	>	{
1937	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1938	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1939	>	final FailingBiConsumer r1 = new FailingBiConsumer(m);
1940	>	final FailingBiConsumer r2 = new FailingBiConsumer(m);
1941	>	final FailingBiConsumer r3 = new FailingBiConsumer(m);
1942	>
1943	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1944	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1945	>	final Integer w1 =  fFirst ? v1 : v2;
1946	>	final Integer w2 = !fFirst ? v1 : v2;
1947	>
1948	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1949	>	assertTrue(fst.complete(w1));
1950	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1951	>	assertTrue(snd.complete(w2));
1952	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1953	>
1954	>	checkCompletedWithWrappedException(h1, r1.ex);
1955	>	checkCompletedWithWrappedException(h2, r2.ex);
1956	>	checkCompletedWithWrappedException(h3, r3.ex);
1957	>	r1.assertInvoked();
1958	>	r2.assertInvoked();
1959	>	r3.assertInvoked();
1960	>	checkCompletedNormally(f, v1);
1961	>	checkCompletedNormally(g, v2);
1962	>	}}
1963
1964		/**
1965		* runAfterBoth result completes normally after normal
1966		* completion of sources
1967		*/
1968	<	public void testRunAfterBoth() {
1969	<	CompletableFuture<Integer> f, g;
1970	<	CompletableFuture<Void> h;
1971	<	Noop r;
1972	<
1973	<	f = new CompletableFuture<>();
1974	<	g = new CompletableFuture<>();
1975	<	h = f.runAfterBoth(g, r = new Noop());
1976	<	f.complete(3);
1977	<	checkIncomplete(h);
1978	<	g.complete(1);
1979	<	checkCompletedNormally(h, null);
1980	<	assertTrue(r.ran);
1981	<
1982	<	f = new CompletableFuture<>();
1983	<	g = new CompletableFuture<>();
1984	<	h = f.runAfterBoth(g, r = new Noop());
1985	<	g.complete(1);
1986	<	checkIncomplete(h);
1987	<	f.complete(3);
1988	<	checkCompletedNormally(h, null);
1989	<	assertTrue(r.ran);
1990	<
1991	<	f = new CompletableFuture<>();
1992	<	g = new CompletableFuture<>();
1993	<	g.complete(1);
1994	<	f.complete(3);
1995	<	h = f.runAfterBoth(g, r = new Noop());
1996	<	checkCompletedNormally(h, null);
1997	<	assertTrue(r.ran);
1998	<	}
1968	>	public void testRunAfterBoth_normalCompletion() {
1969	>	for (ExecutionMode m : ExecutionMode.values())
1970	>	for (boolean fFirst : new boolean[] { true, false })
1971	>	for (Integer v1 : new Integer[] { 1, null })
1972	>	for (Integer v2 : new Integer[] { 2, null })
1973	>	{
1974	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1975	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1976	>	final Noop r1 = new Noop(m);
1977	>	final Noop r2 = new Noop(m);
1978	>	final Noop r3 = new Noop(m);
1979	>
1980	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1981	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1982	>	final Integer w1 =  fFirst ? v1 : v2;
1983	>	final Integer w2 = !fFirst ? v1 : v2;
1984	>
1985	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1986	>	assertTrue(fst.complete(w1));
1987	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1988	>	checkIncomplete(h1);
1989	>	checkIncomplete(h2);
1990	>	r1.assertNotInvoked();
1991	>	r2.assertNotInvoked();
1992	>	assertTrue(snd.complete(w2));
1993	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
1994	>
1995	>	checkCompletedNormally(h1, null);
1996	>	checkCompletedNormally(h2, null);
1997	>	checkCompletedNormally(h3, null);
1998	>	r1.assertInvoked();
1999	>	r2.assertInvoked();
2000	>	r3.assertInvoked();
2001	>	checkCompletedNormally(f, v1);
2002	>	checkCompletedNormally(g, v2);
2003	>	}}
2004
2005		/**
2006		* runAfterBoth result completes exceptionally after exceptional
2007		* completion of either source
2008		*/
2009	<	public void testRunAfterBoth2() {
2010	<	CompletableFuture<Integer> f, g;
2011	<	CompletableFuture<Void> h;
2012	<	Noop r;
2013	<
2014	<	f = new CompletableFuture<>();
2015	<	g = new CompletableFuture<>();
2016	<	h = f.runAfterBoth(g, r = new Noop());
2017	<	f.completeExceptionally(new CFException());
2018	<	checkIncomplete(h);
2019	<	g.complete(1);
2020	<	checkCompletedWithWrappedCFException(h);
2021	<	assertFalse(r.ran);
2022	<
2023	<	f = new CompletableFuture<>();
2024	<	g = new CompletableFuture<>();
2025	<	h = f.runAfterBoth(g, r = new Noop());
2026	<	g.completeExceptionally(new CFException());
2027	<	checkIncomplete(h);
2028	<	f.complete(3);
2029	<	checkCompletedWithWrappedCFException(h);
2030	<	assertFalse(r.ran);
2031	<
2032	<	f = new CompletableFuture<>();
2033	<	g = new CompletableFuture<>();
2034	<	g.completeExceptionally(new CFException());
2035	<	f.complete(3);
2036	<	h = f.runAfterBoth(g, r = new Noop());
2037	<	checkCompletedWithWrappedCFException(h);
2038	<	assertFalse(r.ran);
2039	<
2040	<	f = new CompletableFuture<>();
2041	<	g = new CompletableFuture<>();
2042	<	f.completeExceptionally(new CFException());
2043	<	g.complete(1);
2044	<	h = f.runAfterBoth(g, r = new Noop());
2045	<	checkCompletedWithWrappedCFException(h);
2046	<	assertFalse(r.ran);
2047	<	}
2009	>	public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
2010	>	for (ExecutionMode m : ExecutionMode.values())
2011	>	for (boolean fFirst : new boolean[] { true, false })
2012	>	for (boolean failFirst : new boolean[] { true, false })
2013	>	for (Integer v1 : new Integer[] { 1, null })
2014	>	{
2015	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2016	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2017	>	final CFException ex = new CFException();
2018	>	final Noop r1 = new Noop(m);
2019	>	final Noop r2 = new Noop(m);
2020	>	final Noop r3 = new Noop(m);
2021	>
2022	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2023	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2024	>	final Callable<Boolean> complete1 = failFirst ?
2025	>	() -> fst.completeExceptionally(ex) :
2026	>	() -> fst.complete(v1);
2027	>	final Callable<Boolean> complete2 = failFirst ?
2028	>	() -> snd.complete(v1) :
2029	>	() -> snd.completeExceptionally(ex);
2030	>
2031	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2032	>	assertTrue(complete1.call());
2033	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2034	>	checkIncomplete(h1);
2035	>	checkIncomplete(h2);
2036	>	assertTrue(complete2.call());
2037	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2038	>
2039	>	checkCompletedWithWrappedException(h1, ex);
2040	>	checkCompletedWithWrappedException(h2, ex);
2041	>	checkCompletedWithWrappedException(h3, ex);
2042	>	r1.assertNotInvoked();
2043	>	r2.assertNotInvoked();
2044	>	r3.assertNotInvoked();
2045	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2046	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
2047	>	}}
2048
2049		/**
2050	<	* runAfterBoth result completes exceptionally if action does
2050	>	* runAfterBoth result completes exceptionally if either source cancelled
2051		*/
2052	<	public void testRunAfterBoth3() {
2053	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2054	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2055	<	FailingNoop r = new FailingNoop();
2056	<	CompletableFuture<Void> g = f.runAfterBoth(f2, r);
2057	<	f.complete(one);
2058	<	checkIncomplete(g);
2059	<	f2.complete(two);
2060	<	checkCompletedWithWrappedCFException(g);
2061	<	}
2052	>	public void testRunAfterBoth_sourceCancelled() throws Throwable {
2053	>	for (ExecutionMode m : ExecutionMode.values())
2054	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2055	>	for (boolean fFirst : new boolean[] { true, false })
2056	>	for (boolean failFirst : new boolean[] { true, false })
2057	>	for (Integer v1 : new Integer[] { 1, null })
2058	>	{
2059	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2060	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2061	>	final Noop r1 = new Noop(m);
2062	>	final Noop r2 = new Noop(m);
2063	>	final Noop r3 = new Noop(m);
2064	>
2065	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2066	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2067	>	final Callable<Boolean> complete1 = failFirst ?
2068	>	() -> fst.cancel(mayInterruptIfRunning) :
2069	>	() -> fst.complete(v1);
2070	>	final Callable<Boolean> complete2 = failFirst ?
2071	>	() -> snd.complete(v1) :
2072	>	() -> snd.cancel(mayInterruptIfRunning);
2073	>
2074	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2075	>	assertTrue(complete1.call());
2076	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2077	>	checkIncomplete(h1);
2078	>	checkIncomplete(h2);
2079	>	assertTrue(complete2.call());
2080	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2081	>
2082	>	checkCompletedWithWrappedCancellationException(h1);
2083	>	checkCompletedWithWrappedCancellationException(h2);
2084	>	checkCompletedWithWrappedCancellationException(h3);
2085	>	r1.assertNotInvoked();
2086	>	r2.assertNotInvoked();
2087	>	r3.assertNotInvoked();
2088	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2089	>	checkCancelled(failFirst ? fst : snd);
2090	>	}}
2091
2092		/**
2093	<	* runAfterBoth result completes exceptionally if either source cancelled
2093	>	* runAfterBoth result completes exceptionally if action does
2094		*/
2095	<	public void testRunAfterBoth4() {
2096	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2097	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2098	<	Noop r = new Noop();
2099	<	CompletableFuture<Void> g = f.runAfterBoth(f2, r);
2100	<	assertTrue(f.cancel(true));
2101	<	f2.complete(two);
2102	<	checkCompletedWithWrappedCancellationException(g);
2103	<	f = new CompletableFuture<>();
2104	<	f2 = new CompletableFuture<>();
2105	<	r = new Noop();
2106	<	g = f.runAfterBoth(f2, r);
2107	<	f.complete(one);
2108	<	assertTrue(f2.cancel(true));
2109	<	checkCompletedWithWrappedCancellationException(g);
2110	<	}
2095	>	public void testRunAfterBoth_actionFailed() {
2096	>	for (ExecutionMode m : ExecutionMode.values())
2097	>	for (boolean fFirst : new boolean[] { true, false })
2098	>	for (Integer v1 : new Integer[] { 1, null })
2099	>	for (Integer v2 : new Integer[] { 2, null })
2100	>	{
2101	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2102	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2103	>	final FailingRunnable r1 = new FailingRunnable(m);
2104	>	final FailingRunnable r2 = new FailingRunnable(m);
2105	>	final FailingRunnable r3 = new FailingRunnable(m);
2106	>
2107	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2108	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2109	>	final Integer w1 =  fFirst ? v1 : v2;
2110	>	final Integer w2 = !fFirst ? v1 : v2;
2111	>
2112	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2113	>	assertTrue(fst.complete(w1));
2114	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2115	>	assertTrue(snd.complete(w2));
2116	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2117	>
2118	>	checkCompletedWithWrappedException(h1, r1.ex);
2119	>	checkCompletedWithWrappedException(h2, r2.ex);
2120	>	checkCompletedWithWrappedException(h3, r3.ex);
2121	>	r1.assertInvoked();
2122	>	r2.assertInvoked();
2123	>	r3.assertInvoked();
2124	>	checkCompletedNormally(f, v1);
2125	>	checkCompletedNormally(g, v2);
2126	>	}}
2127
2128		/**
2129		* applyToEither result completes normally after normal completion
2130		* of either source
2131		*/
2132	<	public void testApplyToEither() {
2133	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2134	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2135	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
2136	<	f.complete(one);
2137	<	checkCompletedNormally(g, two);
2138	<	f2.complete(one);
2139	<	checkCompletedNormally(g, two);
2140	<
2141	<	f = new CompletableFuture<>();
2142	<	f.complete(one);
2143	<	f2 = new CompletableFuture<>();
2144	<	g = f.applyToEither(f2, inc);
2145	<	checkCompletedNormally(g, two);
2146	<	}
2132	>	public void testApplyToEither_normalCompletion() {
2133	>	for (ExecutionMode m : ExecutionMode.values())
2134	>	for (Integer v1 : new Integer[] { 1, null })
2135	>	for (Integer v2 : new Integer[] { 2, null })
2136	>	{
2137	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2138	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2139	>	final IncFunction[] rs = new IncFunction[6];
2140	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2141	>
2142	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2143	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2144	>	checkIncomplete(h0);
2145	>	checkIncomplete(h1);
2146	>	rs[0].assertNotInvoked();
2147	>	rs[1].assertNotInvoked();
2148	>	f.complete(v1);
2149	>	checkCompletedNormally(h0, inc(v1));
2150	>	checkCompletedNormally(h1, inc(v1));
2151	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2152	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2153	>	checkCompletedNormally(h2, inc(v1));
2154	>	checkCompletedNormally(h3, inc(v1));
2155	>	g.complete(v2);
2156	>
2157	>	// unspecified behavior - both source completions available
2158	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2159	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2160	>	rs[4].assertValue(h4.join());
2161	>	rs[5].assertValue(h5.join());
2162	>	assertTrue(Objects.equals(inc(v1), h4.join()) ||
2163	>	Objects.equals(inc(v2), h4.join()));
2164	>	assertTrue(Objects.equals(inc(v1), h5.join()) ||
2165	>	Objects.equals(inc(v2), h5.join()));
2166	>
2167	>	checkCompletedNormally(f, v1);
2168	>	checkCompletedNormally(g, v2);
2169	>	checkCompletedNormally(h0, inc(v1));
2170	>	checkCompletedNormally(h1, inc(v1));
2171	>	checkCompletedNormally(h2, inc(v1));
2172	>	checkCompletedNormally(h3, inc(v1));
2173	>	for (int i = 0; i < 4; i++) rs[i].assertValue(inc(v1));
2174	>	}}
2175
2176		/**
2177		* applyToEither result completes exceptionally after exceptional
2178		* completion of either source
2179		*/
2180	<	public void testApplyToEither2() {
2181	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2182	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2183	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
2184	<	f.completeExceptionally(new CFException());
2185	<	f2.complete(one);
2186	<	checkCompletedWithWrappedCFException(g);
2180	>	public void testApplyToEither_exceptionalCompletion() {
2181	>	for (ExecutionMode m : ExecutionMode.values())
2182	>	for (Integer v1 : new Integer[] { 1, null })
2183	>	{
2184	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2185	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2186	>	final CFException ex = new CFException();
2187	>	final IncFunction[] rs = new IncFunction[6];
2188	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2189	>
2190	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2191	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2192	>	checkIncomplete(h0);
2193	>	checkIncomplete(h1);
2194	>	rs[0].assertNotInvoked();
2195	>	rs[1].assertNotInvoked();
2196	>	f.completeExceptionally(ex);
2197	>	checkCompletedWithWrappedException(h0, ex);
2198	>	checkCompletedWithWrappedException(h1, ex);
2199	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2200	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2201	>	checkCompletedWithWrappedException(h2, ex);
2202	>	checkCompletedWithWrappedException(h3, ex);
2203	>	g.complete(v1);
2204	>
2205	>	// unspecified behavior - both source completions available
2206	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2207	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2208	>	try {
2209	>	assertEquals(inc(v1), h4.join());
2210	>	rs[4].assertValue(inc(v1));
2211	>	} catch (CompletionException ok) {
2212	>	checkCompletedWithWrappedException(h4, ex);
2213	>	rs[4].assertNotInvoked();
2214	>	}
2215	>	try {
2216	>	assertEquals(inc(v1), h5.join());
2217	>	rs[5].assertValue(inc(v1));
2218	>	} catch (CompletionException ok) {
2219	>	checkCompletedWithWrappedException(h5, ex);
2220	>	rs[5].assertNotInvoked();
2221	>	}
2222
2223	<	f = new CompletableFuture<>();
2224	<	f2 = new CompletableFuture<>();
2225	<	f2.completeExceptionally(new CFException());
2226	<	g = f.applyToEither(f2, inc);
2227	<	checkCompletedWithWrappedCFException(g);
2228	<	}
2223	>	checkCompletedExceptionally(f, ex);
2224	>	checkCompletedNormally(g, v1);
2225	>	checkCompletedWithWrappedException(h0, ex);
2226	>	checkCompletedWithWrappedException(h1, ex);
2227	>	checkCompletedWithWrappedException(h2, ex);
2228	>	checkCompletedWithWrappedException(h3, ex);
2229	>	checkCompletedWithWrappedException(h4, ex);
2230	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2231	>	}}
2232	>
2233	>	public void testApplyToEither_exceptionalCompletion2() {
2234	>	for (ExecutionMode m : ExecutionMode.values())
2235	>	for (boolean fFirst : new boolean[] { true, false })
2236	>	for (Integer v1 : new Integer[] { 1, null })
2237	>	{
2238	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2239	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2240	>	final CFException ex = new CFException();
2241	>	final IncFunction[] rs = new IncFunction[6];
2242	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2243	>
2244	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2245	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2246	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2247	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2248	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2249	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2250
2251	<	/**
2252	<	* applyToEither result completes exceptionally if action does
2253	<	*/
2254	<	public void testApplyToEither3() {
2255	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2256	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2257	<	FailingFunction r = new FailingFunction();
2258	<	CompletableFuture<Integer> g = f.applyToEither(f2, r);
2259	<	f2.complete(two);
2260	<	checkCompletedWithWrappedCFException(g);
2261	<	}
2251	>	// unspecified behavior - both source completions available
2252	>	try {
2253	>	assertEquals(inc(v1), h0.join());
2254	>	rs[0].assertValue(inc(v1));
2255	>	} catch (CompletionException ok) {
2256	>	checkCompletedWithWrappedException(h0, ex);
2257	>	rs[0].assertNotInvoked();
2258	>	}
2259	>	try {
2260	>	assertEquals(inc(v1), h1.join());
2261	>	rs[1].assertValue(inc(v1));
2262	>	} catch (CompletionException ok) {
2263	>	checkCompletedWithWrappedException(h1, ex);
2264	>	rs[1].assertNotInvoked();
2265	>	}
2266	>	try {
2267	>	assertEquals(inc(v1), h2.join());
2268	>	rs[2].assertValue(inc(v1));
2269	>	} catch (CompletionException ok) {
2270	>	checkCompletedWithWrappedException(h2, ex);
2271	>	rs[2].assertNotInvoked();
2272	>	}
2273	>	try {
2274	>	assertEquals(inc(v1), h3.join());
2275	>	rs[3].assertValue(inc(v1));
2276	>	} catch (CompletionException ok) {
2277	>	checkCompletedWithWrappedException(h3, ex);
2278	>	rs[3].assertNotInvoked();
2279	>	}
2280
2281	<	/**
2282	<	* applyToEither result completes exceptionally if either source cancelled
2283	<	*/
1086	<	public void testApplyToEither4() {
1087	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1088	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1089	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
1090	<	assertTrue(f.cancel(true));
1091	<	checkCompletedWithWrappedCancellationException(g);
1092	<	f = new CompletableFuture<>();
1093	<	f2 = new CompletableFuture<>();
1094	<	assertTrue(f2.cancel(true));
1095	<	checkCompletedWithWrappedCancellationException(g);
1096	<	}
2281	>	checkCompletedNormally(f, v1);
2282	>	checkCompletedExceptionally(g, ex);
2283	>	}}
2284
2285		/**
2286	<	* acceptEither result completes normally after normal completion
1100	<	* of either source
2286	>	* applyToEither result completes exceptionally if either source cancelled
2287		*/
2288	<	public void testAcceptEither() {
2289	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2290	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2291	<	IncAction r = new IncAction();
2292	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2293	<	f.complete(one);
2294	<	checkCompletedNormally(g, null);
2295	<	f2.complete(one);
2296	<	checkCompletedNormally(g, null);
2297	<	assertEquals(r.value, 2);
2298	<
2299	<	r = new IncAction();
2300	<	f = new CompletableFuture<>();
2301	<	f.complete(one);
2302	<	f2 = new CompletableFuture<>();
2303	<	g = f.acceptEither(f2, r);
2304	<	checkCompletedNormally(g, null);
2305	<	assertEquals(r.value, 2);
2306	<	}
2288	>	public void testApplyToEither_sourceCancelled() {
2289	>	for (ExecutionMode m : ExecutionMode.values())
2290	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2291	>	for (Integer v1 : new Integer[] { 1, null })
2292	>	{
2293	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2294	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2295	>	final IncFunction[] rs = new IncFunction[6];
2296	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2297	>
2298	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2299	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2300	>	checkIncomplete(h0);
2301	>	checkIncomplete(h1);
2302	>	rs[0].assertNotInvoked();
2303	>	rs[1].assertNotInvoked();
2304	>	f.cancel(mayInterruptIfRunning);
2305	>	checkCompletedWithWrappedCancellationException(h0);
2306	>	checkCompletedWithWrappedCancellationException(h1);
2307	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2308	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2309	>	checkCompletedWithWrappedCancellationException(h2);
2310	>	checkCompletedWithWrappedCancellationException(h3);
2311	>	g.complete(v1);
2312	>
2313	>	// unspecified behavior - both source completions available
2314	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2315	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2316	>	try {
2317	>	assertEquals(inc(v1), h4.join());
2318	>	rs[4].assertValue(inc(v1));
2319	>	} catch (CompletionException ok) {
2320	>	checkCompletedWithWrappedCancellationException(h4);
2321	>	rs[4].assertNotInvoked();
2322	>	}
2323	>	try {
2324	>	assertEquals(inc(v1), h5.join());
2325	>	rs[5].assertValue(inc(v1));
2326	>	} catch (CompletionException ok) {
2327	>	checkCompletedWithWrappedCancellationException(h5);
2328	>	rs[5].assertNotInvoked();
2329	>	}
2330
2331	<	/**
2332	<	* acceptEither result completes exceptionally after exceptional
2333	<	* completion of either source
2334	<	*/
2335	<	public void testAcceptEither2() {
2336	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2337	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2338	<	IncAction r = new IncAction();
2339	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2340	<	f.completeExceptionally(new CFException());
2341	<	f2.complete(one);
2342	<	checkCompletedWithWrappedCFException(g);
2331	>	checkCancelled(f);
2332	>	checkCompletedNormally(g, v1);
2333	>	checkCompletedWithWrappedCancellationException(h0);
2334	>	checkCompletedWithWrappedCancellationException(h1);
2335	>	checkCompletedWithWrappedCancellationException(h2);
2336	>	checkCompletedWithWrappedCancellationException(h3);
2337	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2338	>	}}
2339	>
2340	>	public void testApplyToEither_sourceCancelled2() {
2341	>	for (ExecutionMode m : ExecutionMode.values())
2342	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2343	>	for (boolean fFirst : new boolean[] { true, false })
2344	>	for (Integer v1 : new Integer[] { 1, null })
2345	>	{
2346	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2347	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2348	>	final IncFunction[] rs = new IncFunction[6];
2349	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2350	>
2351	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2352	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2353	>	assertTrue(fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2354	>	assertTrue(!fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2355	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2356	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2357
2358	<	r = new IncAction();
2359	<	f = new CompletableFuture<>();
2360	<	f2 = new CompletableFuture<>();
2361	<	f2.completeExceptionally(new CFException());
2362	<	g = f.acceptEither(f2, r);
2363	<	checkCompletedWithWrappedCFException(g);
2364	<	}
2358	>	// unspecified behavior - both source completions available
2359	>	try {
2360	>	assertEquals(inc(v1), h0.join());
2361	>	rs[0].assertValue(inc(v1));
2362	>	} catch (CompletionException ok) {
2363	>	checkCompletedWithWrappedCancellationException(h0);
2364	>	rs[0].assertNotInvoked();
2365	>	}
2366	>	try {
2367	>	assertEquals(inc(v1), h1.join());
2368	>	rs[1].assertValue(inc(v1));
2369	>	} catch (CompletionException ok) {
2370	>	checkCompletedWithWrappedCancellationException(h1);
2371	>	rs[1].assertNotInvoked();
2372	>	}
2373	>	try {
2374	>	assertEquals(inc(v1), h2.join());
2375	>	rs[2].assertValue(inc(v1));
2376	>	} catch (CompletionException ok) {
2377	>	checkCompletedWithWrappedCancellationException(h2);
2378	>	rs[2].assertNotInvoked();
2379	>	}
2380	>	try {
2381	>	assertEquals(inc(v1), h3.join());
2382	>	rs[3].assertValue(inc(v1));
2383	>	} catch (CompletionException ok) {
2384	>	checkCompletedWithWrappedCancellationException(h3);
2385	>	rs[3].assertNotInvoked();
2386	>	}
2387
2388	<	/**
2389	<	* acceptEither result completes exceptionally if action does
2390	<	*/
1146	<	public void testAcceptEither3() {
1147	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1148	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1149	<	FailingConsumer r = new FailingConsumer();
1150	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
1151	<	f2.complete(two);
1152	<	checkCompletedWithWrappedCFException(g);
1153	<	}
2388	>	checkCompletedNormally(f, v1);
2389	>	checkCancelled(g);
2390	>	}}
2391
2392		/**
2393	<	* acceptEither result completes exceptionally if either source cancelled
2393	>	* applyToEither result completes exceptionally if action does
2394		*/
2395	<	public void testAcceptEither4() {
2396	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2397	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2398	<	IncAction r = new IncAction();
2399	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2400	<	assertTrue(f.cancel(true));
2401	<	checkCompletedWithWrappedCancellationException(g);
2402	<	f = new CompletableFuture<>();
2403	<	f2 = new CompletableFuture<>();
2404	<	assertTrue(f2.cancel(true));
2405	<	checkCompletedWithWrappedCancellationException(g);
2406	<	}
2395	>	public void testApplyToEither_actionFailed() {
2396	>	for (ExecutionMode m : ExecutionMode.values())
2397	>	for (Integer v1 : new Integer[] { 1, null })
2398	>	for (Integer v2 : new Integer[] { 2, null })
2399	>	{
2400	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2401	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2402	>	final FailingFunction[] rs = new FailingFunction[6];
2403	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
2404	>
2405	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2406	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2407	>	f.complete(v1);
2408	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2409	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2410	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2411	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2412	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2413	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2414	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2415	>
2416	>	g.complete(v2);
2417	>
2418	>	// unspecified behavior - both source completions available
2419	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2420	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2421	>
2422	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2423	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2424	>	Objects.equals(v2, rs[4].value));
2425	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2426	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2427	>	Objects.equals(v2, rs[5].value));
2428	>
2429	>	checkCompletedNormally(f, v1);
2430	>	checkCompletedNormally(g, v2);
2431	>	}}
2432
2433		/**
2434	<	* runAfterEither result completes normally after normal completion
2434	>	* acceptEither result completes normally after normal completion
2435		* of either source
2436		*/
2437	<	public void testRunAfterEither() {
2438	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2439	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2440	<	Noop r = new Noop();
2441	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2442	<	f.complete(one);
2443	<	checkCompletedNormally(g, null);
2444	<	f2.complete(one);
2445	<	checkCompletedNormally(g, null);
2446	<	assertTrue(r.ran);
2447	<
2448	<	r = new Noop();
2449	<	f = new CompletableFuture<>();
2450	<	f.complete(one);
2451	<	f2 = new CompletableFuture<>();
2452	<	g = f.runAfterEither(f2, r);
2453	<	checkCompletedNormally(g, null);
2454	<	assertTrue(r.ran);
2455	<	}
2437	>	public void testAcceptEither_normalCompletion() {
2438	>	for (ExecutionMode m : ExecutionMode.values())
2439	>	for (Integer v1 : new Integer[] { 1, null })
2440	>	for (Integer v2 : new Integer[] { 2, null })
2441	>	{
2442	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2443	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2444	>	final NoopConsumer[] rs = new NoopConsumer[6];
2445	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2446	>
2447	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2448	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2449	>	checkIncomplete(h0);
2450	>	checkIncomplete(h1);
2451	>	rs[0].assertNotInvoked();
2452	>	rs[1].assertNotInvoked();
2453	>	f.complete(v1);
2454	>	checkCompletedNormally(h0, null);
2455	>	checkCompletedNormally(h1, null);
2456	>	rs[0].assertValue(v1);
2457	>	rs[1].assertValue(v1);
2458	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2459	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2460	>	checkCompletedNormally(h2, null);
2461	>	checkCompletedNormally(h3, null);
2462	>	rs[2].assertValue(v1);
2463	>	rs[3].assertValue(v1);
2464	>	g.complete(v2);
2465	>
2466	>	// unspecified behavior - both source completions available
2467	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2468	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2469	>	checkCompletedNormally(h4, null);
2470	>	checkCompletedNormally(h5, null);
2471	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2472	>	Objects.equals(v2, rs[4].value));
2473	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2474	>	Objects.equals(v2, rs[5].value));
2475	>
2476	>	checkCompletedNormally(f, v1);
2477	>	checkCompletedNormally(g, v2);
2478	>	checkCompletedNormally(h0, null);
2479	>	checkCompletedNormally(h1, null);
2480	>	checkCompletedNormally(h2, null);
2481	>	checkCompletedNormally(h3, null);
2482	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2483	>	}}
2484
2485		/**
2486	<	* runAfterEither result completes exceptionally after exceptional
2486	>	* acceptEither result completes exceptionally after exceptional
2487		* completion of either source
2488		*/
2489	<	public void testRunAfterEither2() {
2490	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2491	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2492	<	Noop r = new Noop();
2493	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2494	<	f.completeExceptionally(new CFException());
2495	<	f2.complete(one);
2496	<	checkCompletedWithWrappedCFException(g);
2497	<
2498	<	r = new Noop();
2499	<	f = new CompletableFuture<>();
2500	<	f2 = new CompletableFuture<>();
2501	<	f2.completeExceptionally(new CFException());
2502	<	g = f.runAfterEither(f2, r);
2503	<	checkCompletedWithWrappedCFException(g);
2504	<	}
2505	<
2506	<	/**
2507	<	* runAfterEither result completes exceptionally if action does
2508	<	*/
2509	<	public void testRunAfterEither3() {
2510	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2511	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2512	<	FailingNoop r = new FailingNoop();
2513	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2514	<	f2.complete(two);
2515	<	checkCompletedWithWrappedCFException(g);
2516	<	}
2517	<
2518	<	/**
2519	<	* runAfterEither result completes exceptionally if either source cancelled
2520	<	*/
2521	<	public void testRunAfterEither4() {
2522	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2523	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2524	<	Noop r = new Noop();
2525	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2526	<	assertTrue(f.cancel(true));
2527	<	checkCompletedWithWrappedCancellationException(g);
2528	<	f = new CompletableFuture<>();
2529	<	f2 = new CompletableFuture<>();
2530	<	assertTrue(f2.cancel(true));
2531	<	checkCompletedWithWrappedCancellationException(g);
1242	<	}
2489	>	public void testAcceptEither_exceptionalCompletion() {
2490	>	for (ExecutionMode m : ExecutionMode.values())
2491	>	for (Integer v1 : new Integer[] { 1, null })
2492	>	{
2493	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2494	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2495	>	final CFException ex = new CFException();
2496	>	final NoopConsumer[] rs = new NoopConsumer[6];
2497	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2498	>
2499	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2500	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2501	>	checkIncomplete(h0);
2502	>	checkIncomplete(h1);
2503	>	rs[0].assertNotInvoked();
2504	>	rs[1].assertNotInvoked();
2505	>	f.completeExceptionally(ex);
2506	>	checkCompletedWithWrappedException(h0, ex);
2507	>	checkCompletedWithWrappedException(h1, ex);
2508	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2509	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2510	>	checkCompletedWithWrappedException(h2, ex);
2511	>	checkCompletedWithWrappedException(h3, ex);
2512	>
2513	>	g.complete(v1);
2514	>
2515	>	// unspecified behavior - both source completions available
2516	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2517	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2518	>	try {
2519	>	assertNull(h4.join());
2520	>	rs[4].assertValue(v1);
2521	>	} catch (CompletionException ok) {
2522	>	checkCompletedWithWrappedException(h4, ex);
2523	>	rs[4].assertNotInvoked();
2524	>	}
2525	>	try {
2526	>	assertNull(h5.join());
2527	>	rs[5].assertValue(v1);
2528	>	} catch (CompletionException ok) {
2529	>	checkCompletedWithWrappedException(h5, ex);
2530	>	rs[5].assertNotInvoked();
2531	>	}
2532
2533	<	/**
2534	<	* thenCompose result completes normally after normal completion of source
2535	<	*/
2536	<	public void testThenCompose() {
2537	<	CompletableFuture<Integer> f, g;
2538	<	CompletableFutureInc r;
2533	>	checkCompletedExceptionally(f, ex);
2534	>	checkCompletedNormally(g, v1);
2535	>	checkCompletedWithWrappedException(h0, ex);
2536	>	checkCompletedWithWrappedException(h1, ex);
2537	>	checkCompletedWithWrappedException(h2, ex);
2538	>	checkCompletedWithWrappedException(h3, ex);
2539	>	checkCompletedWithWrappedException(h4, ex);
2540	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2541	>	}}
2542	>
2543	>	public void testAcceptEither_exceptionalCompletion2() {
2544	>	for (ExecutionMode m : ExecutionMode.values())
2545	>	for (boolean fFirst : new boolean[] { true, false })
2546	>	for (Integer v1 : new Integer[] { 1, null })
2547	>	{
2548	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2549	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2550	>	final CFException ex = new CFException();
2551	>	final NoopConsumer[] rs = new NoopConsumer[6];
2552	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2553	>
2554	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2555	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2556	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2557	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2558	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2559	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2560
2561	<	f = new CompletableFuture<>();
2562	<	g = f.thenCompose(r = new CompletableFutureInc());
2563	<	f.complete(one);
2564	<	checkCompletedNormally(g, two);
2565	<	assertTrue(r.ran);
2561	>	// unspecified behavior - both source completions available
2562	>	try {
2563	>	assertNull(h0.join());
2564	>	rs[0].assertValue(v1);
2565	>	} catch (CompletionException ok) {
2566	>	checkCompletedWithWrappedException(h0, ex);
2567	>	rs[0].assertNotInvoked();
2568	>	}
2569	>	try {
2570	>	assertNull(h1.join());
2571	>	rs[1].assertValue(v1);
2572	>	} catch (CompletionException ok) {
2573	>	checkCompletedWithWrappedException(h1, ex);
2574	>	rs[1].assertNotInvoked();
2575	>	}
2576	>	try {
2577	>	assertNull(h2.join());
2578	>	rs[2].assertValue(v1);
2579	>	} catch (CompletionException ok) {
2580	>	checkCompletedWithWrappedException(h2, ex);
2581	>	rs[2].assertNotInvoked();
2582	>	}
2583	>	try {
2584	>	assertNull(h3.join());
2585	>	rs[3].assertValue(v1);
2586	>	} catch (CompletionException ok) {
2587	>	checkCompletedWithWrappedException(h3, ex);
2588	>	rs[3].assertNotInvoked();
2589	>	}
2590
2591	<	f = new CompletableFuture<>();
2592	<	f.complete(one);
2593	<	g = f.thenCompose(r = new CompletableFutureInc());
1260	<	checkCompletedNormally(g, two);
1261	<	assertTrue(r.ran);
1262	<	}
2591	>	checkCompletedNormally(f, v1);
2592	>	checkCompletedExceptionally(g, ex);
2593	>	}}
2594
2595		/**
2596	<	* thenCompose result completes exceptionally after exceptional
1266	<	* completion of source
2596	>	* acceptEither result completes exceptionally if either source cancelled
2597		*/
2598	<	public void testThenCompose2() {
2599	<	CompletableFuture<Integer> f, g;
2600	<	CompletableFutureInc r;
2601	<
2602	<	f = new CompletableFuture<>();
2603	<	g = f.thenCompose(r = new CompletableFutureInc());
2604	<	f.completeExceptionally(new CFException());
2605	<	checkCompletedWithWrappedCFException(g);
2598	>	public void testAcceptEither_sourceCancelled() {
2599	>	for (ExecutionMode m : ExecutionMode.values())
2600	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2601	>	for (Integer v1 : new Integer[] { 1, null })
2602	>	{
2603	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2604	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2605	>	final NoopConsumer[] rs = new NoopConsumer[6];
2606	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2607	>
2608	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2609	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2610	>	checkIncomplete(h0);
2611	>	checkIncomplete(h1);
2612	>	rs[0].assertNotInvoked();
2613	>	rs[1].assertNotInvoked();
2614	>	f.cancel(mayInterruptIfRunning);
2615	>	checkCompletedWithWrappedCancellationException(h0);
2616	>	checkCompletedWithWrappedCancellationException(h1);
2617	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2618	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2619	>	checkCompletedWithWrappedCancellationException(h2);
2620	>	checkCompletedWithWrappedCancellationException(h3);
2621	>
2622	>	g.complete(v1);
2623	>
2624	>	// unspecified behavior - both source completions available
2625	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2626	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2627	>	try {
2628	>	assertNull(h4.join());
2629	>	rs[4].assertValue(v1);
2630	>	} catch (CompletionException ok) {
2631	>	checkCompletedWithWrappedCancellationException(h4);
2632	>	rs[4].assertNotInvoked();
2633	>	}
2634	>	try {
2635	>	assertNull(h5.join());
2636	>	rs[5].assertValue(v1);
2637	>	} catch (CompletionException ok) {
2638	>	checkCompletedWithWrappedCancellationException(h5);
2639	>	rs[5].assertNotInvoked();
2640	>	}
2641
2642	<	f = new CompletableFuture<>();
2643	<	f.completeExceptionally(new CFException());
2644	<	g = f.thenCompose(r = new CompletableFutureInc());
2645	<	checkCompletedWithWrappedCFException(g);
2646	<	}
2642	>	checkCancelled(f);
2643	>	checkCompletedNormally(g, v1);
2644	>	checkCompletedWithWrappedCancellationException(h0);
2645	>	checkCompletedWithWrappedCancellationException(h1);
2646	>	checkCompletedWithWrappedCancellationException(h2);
2647	>	checkCompletedWithWrappedCancellationException(h3);
2648	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2649	>	}}
2650
2651		/**
2652	<	* thenCompose result completes exceptionally if action does
2652	>	* acceptEither result completes exceptionally if action does
2653		*/
2654	<	public void testThenCompose3() {
2655	<	CompletableFuture<Integer> f, g;
2656	<	FailingCompletableFutureFunction r;
2657	<
2658	<	f = new CompletableFuture<>();
2659	<	g = f.thenCompose(r = new FailingCompletableFutureFunction());
2660	<	f.complete(one);
2661	<	checkCompletedWithWrappedCFException(g);
2662	<
2663	<	f = new CompletableFuture<>();
2664	<	f.complete(one);
2665	<	g = f.thenCompose(r = new FailingCompletableFutureFunction());
2666	<	checkCompletedWithWrappedCFException(g);
2667	<	}
2654	>	public void testAcceptEither_actionFailed() {
2655	>	for (ExecutionMode m : ExecutionMode.values())
2656	>	for (Integer v1 : new Integer[] { 1, null })
2657	>	for (Integer v2 : new Integer[] { 2, null })
2658	>	{
2659	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2660	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2661	>	final FailingConsumer[] rs = new FailingConsumer[6];
2662	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
2663	>
2664	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2665	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2666	>	f.complete(v1);
2667	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2668	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2669	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2670	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2671	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2672	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2673	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2674	>
2675	>	g.complete(v2);
2676	>
2677	>	// unspecified behavior - both source completions available
2678	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2679	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2680	>
2681	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2682	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2683	>	Objects.equals(v2, rs[4].value));
2684	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2685	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2686	>	Objects.equals(v2, rs[5].value));
2687	>
2688	>	checkCompletedNormally(f, v1);
2689	>	checkCompletedNormally(g, v2);
2690	>	}}
2691
2692		/**
2693	<	* thenCompose result completes exceptionally if source cancelled
2693	>	* runAfterEither result completes normally after normal completion
2694	>	* of either source
2695		*/
2696	<	public void testThenCompose4() {
2697	<	CompletableFuture<Integer> f, g;
2698	<	CompletableFutureInc r;
2699	<
2700	<	f = new CompletableFuture<>();
2701	<	g = f.thenCompose(r = new CompletableFutureInc());
2702	<	assertTrue(f.cancel(true));
2703	<	checkCompletedWithWrappedCancellationException(g);
2704	<
2705	<	f = new CompletableFuture<>();
2706	<	assertTrue(f.cancel(true));
2707	<	g = f.thenCompose(r = new CompletableFutureInc());
2708	<	checkCompletedWithWrappedCancellationException(g);
2709	<	}
2710	<
2711	<	// asyncs
2696	>	public void testRunAfterEither_normalCompletion() {
2697	>	for (ExecutionMode m : ExecutionMode.values())
2698	>	for (Integer v1 : new Integer[] { 1, null })
2699	>	for (Integer v2 : new Integer[] { 2, null })
2700	>	for (boolean pushNop : new boolean[] { true, false })
2701	>	{
2702	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2703	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2704	>	final Noop[] rs = new Noop[6];
2705	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2706	>
2707	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2708	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2709	>	checkIncomplete(h0);
2710	>	checkIncomplete(h1);
2711	>	rs[0].assertNotInvoked();
2712	>	rs[1].assertNotInvoked();
2713	>	if (pushNop) {          // ad hoc test of intra-completion interference
2714	>	m.thenRun(f, () -> {});
2715	>	m.thenRun(g, () -> {});
2716	>	}
2717	>	f.complete(v1);
2718	>	checkCompletedNormally(h0, null);
2719	>	checkCompletedNormally(h1, null);
2720	>	rs[0].assertInvoked();
2721	>	rs[1].assertInvoked();
2722	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2723	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2724	>	checkCompletedNormally(h2, null);
2725	>	checkCompletedNormally(h3, null);
2726	>	rs[2].assertInvoked();
2727	>	rs[3].assertInvoked();
2728	>
2729	>	g.complete(v2);
2730	>
2731	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2732	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2733	>
2734	>	checkCompletedNormally(f, v1);
2735	>	checkCompletedNormally(g, v2);
2736	>	checkCompletedNormally(h0, null);
2737	>	checkCompletedNormally(h1, null);
2738	>	checkCompletedNormally(h2, null);
2739	>	checkCompletedNormally(h3, null);
2740	>	checkCompletedNormally(h4, null);
2741	>	checkCompletedNormally(h5, null);
2742	>	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2743	>	}}
2744
2745		/**
2746	<	* thenRunAsync result completes normally after normal completion of source
2746	>	* runAfterEither result completes exceptionally after exceptional
2747	>	* completion of either source
2748		*/
2749	<	public void testThenRunAsync() {
2750	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2751	<	Noop r = new Noop();
2752	<	CompletableFuture<Void> g = f.thenRunAsync(r);
2753	<	f.complete(null);
2754	<	checkCompletedNormally(g, null);
2749	>	public void testRunAfterEither_exceptionalCompletion() {
2750	>	for (ExecutionMode m : ExecutionMode.values())
2751	>	for (Integer v1 : new Integer[] { 1, null })
2752	>	{
2753	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2754	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2755	>	final CFException ex = new CFException();
2756	>	final Noop[] rs = new Noop[6];
2757	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2758	>
2759	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2760	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2761	>	checkIncomplete(h0);
2762	>	checkIncomplete(h1);
2763	>	rs[0].assertNotInvoked();
2764	>	rs[1].assertNotInvoked();
2765	>	assertTrue(f.completeExceptionally(ex));
2766	>	checkCompletedWithWrappedException(h0, ex);
2767	>	checkCompletedWithWrappedException(h1, ex);
2768	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2769	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2770	>	checkCompletedWithWrappedException(h2, ex);
2771	>	checkCompletedWithWrappedException(h3, ex);
2772	>
2773	>	assertTrue(g.complete(v1));
2774	>
2775	>	// unspecified behavior - both source completions available
2776	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2777	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2778	>	try {
2779	>	assertNull(h4.join());
2780	>	rs[4].assertInvoked();
2781	>	} catch (CompletionException ok) {
2782	>	checkCompletedWithWrappedException(h4, ex);
2783	>	rs[4].assertNotInvoked();
2784	>	}
2785	>	try {
2786	>	assertNull(h5.join());
2787	>	rs[5].assertInvoked();
2788	>	} catch (CompletionException ok) {
2789	>	checkCompletedWithWrappedException(h5, ex);
2790	>	rs[5].assertNotInvoked();
2791	>	}
2792
2793	<	// reordered version
2794	<	f = new CompletableFuture<>();
2795	<	f.complete(null);
2796	<	r = new Noop();
2797	<	g = f.thenRunAsync(r);
2798	<	checkCompletedNormally(g, null);
2799	<	}
2793	>	checkCompletedExceptionally(f, ex);
2794	>	checkCompletedNormally(g, v1);
2795	>	checkCompletedWithWrappedException(h0, ex);
2796	>	checkCompletedWithWrappedException(h1, ex);
2797	>	checkCompletedWithWrappedException(h2, ex);
2798	>	checkCompletedWithWrappedException(h3, ex);
2799	>	checkCompletedWithWrappedException(h4, ex);
2800	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2801	>	}}
2802	>
2803	>	public void testRunAfterEither_exceptionalCompletion2() {
2804	>	for (ExecutionMode m : ExecutionMode.values())
2805	>	for (boolean fFirst : new boolean[] { true, false })
2806	>	for (Integer v1 : new Integer[] { 1, null })
2807	>	{
2808	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2809	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2810	>	final CFException ex = new CFException();
2811	>	final Noop[] rs = new Noop[6];
2812	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2813	>
2814	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2815	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2816	>	assertTrue( fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2817	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2818	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2819	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2820
2821	<	/**
1340	<	* thenRunAsync result completes exceptionally after exceptional
1341	<	* completion of source
1342	<	*/
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());
2821	>	// unspecified behavior - both source completions available
2822		try {
2823	<	g.join();
2824	<	shouldThrow();
2825	<	} catch (Exception ok) {
2823	>	assertNull(h0.join());
2824	>	rs[0].assertInvoked();
2825	>	} catch (CompletionException ok) {
2826	>	checkCompletedWithWrappedException(h0, ex);
2827	>	rs[0].assertNotInvoked();
2828	>	}
2829	>	try {
2830	>	assertNull(h1.join());
2831	>	rs[1].assertInvoked();
2832	>	} catch (CompletionException ok) {
2833	>	checkCompletedWithWrappedException(h1, ex);
2834	>	rs[1].assertNotInvoked();
2835	>	}
2836	>	try {
2837	>	assertNull(h2.join());
2838	>	rs[2].assertInvoked();
2839	>	} catch (CompletionException ok) {
2840	>	checkCompletedWithWrappedException(h2, ex);
2841	>	rs[2].assertNotInvoked();
2842	>	}
2843	>	try {
2844	>	assertNull(h3.join());
2845	>	rs[3].assertInvoked();
2846	>	} catch (CompletionException ok) {
2847	>	checkCompletedWithWrappedException(h3, ex);
2848	>	rs[3].assertNotInvoked();
2849		}
1353	–	checkCompletedWithWrappedCFException(g);
1354	–	}
1355	–
1356	–	/**
1357	–	* thenRunAsync result completes exceptionally if action does
1358	–	*/
1359	–	public void testThenRunAsync3() {
1360	–	CompletableFuture<Integer> f = new CompletableFuture<>();
1361	–	FailingNoop r = new FailingNoop();
1362	–	CompletableFuture<Void> g = f.thenRunAsync(r);
1363	–	f.complete(null);
1364	–	checkCompletedWithWrappedCFException(g);
1365	–	}
2850
2851	<	/**
2852	<	* thenRunAsync result completes exceptionally if source cancelled
2853	<	*/
1370	<	public void testThenRunAsync4() {
1371	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1372	<	Noop r = new Noop();
1373	<	CompletableFuture<Void> g = f.thenRunAsync(r);
1374	<	assertTrue(f.cancel(true));
1375	<	checkCompletedWithWrappedCancellationException(g);
1376	<	}
2851	>	checkCompletedNormally(f, v1);
2852	>	checkCompletedExceptionally(g, ex);
2853	>	}}
2854
2855		/**
2856	<	* thenApplyAsync result completes normally after normal completion of source
2856	>	* runAfterEither result completes exceptionally if either source cancelled
2857		*/
2858	<	public void testThenApplyAsync() {
2859	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2860	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
2861	<	f.complete(one);
2862	<	checkCompletedNormally(g, two);
2863	<	}
2858	>	public void testRunAfterEither_sourceCancelled() {
2859	>	for (ExecutionMode m : ExecutionMode.values())
2860	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2861	>	for (Integer v1 : new Integer[] { 1, null })
2862	>	{
2863	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2864	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2865	>	final Noop[] rs = new Noop[6];
2866	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2867	>
2868	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2869	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2870	>	checkIncomplete(h0);
2871	>	checkIncomplete(h1);
2872	>	rs[0].assertNotInvoked();
2873	>	rs[1].assertNotInvoked();
2874	>	f.cancel(mayInterruptIfRunning);
2875	>	checkCompletedWithWrappedCancellationException(h0);
2876	>	checkCompletedWithWrappedCancellationException(h1);
2877	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2878	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2879	>	checkCompletedWithWrappedCancellationException(h2);
2880	>	checkCompletedWithWrappedCancellationException(h3);
2881	>
2882	>	assertTrue(g.complete(v1));
2883	>
2884	>	// unspecified behavior - both source completions available
2885	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2886	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2887	>	try {
2888	>	assertNull(h4.join());
2889	>	rs[4].assertInvoked();
2890	>	} catch (CompletionException ok) {
2891	>	checkCompletedWithWrappedCancellationException(h4);
2892	>	rs[4].assertNotInvoked();
2893	>	}
2894	>	try {
2895	>	assertNull(h5.join());
2896	>	rs[5].assertInvoked();
2897	>	} catch (CompletionException ok) {
2898	>	checkCompletedWithWrappedCancellationException(h5);
2899	>	rs[5].assertNotInvoked();
2900	>	}
2901
2902	<	/**
2903	<	* thenApplyAsync result completes exceptionally after exceptional
2904	<	* completion of source
2905	<	*/
2906	<	public void testThenApplyAsync2() {
2907	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2908	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
2909	<	f.completeExceptionally(new CFException());
1396	<	checkCompletedWithWrappedCFException(g);
1397	<	}
2902	>	checkCancelled(f);
2903	>	checkCompletedNormally(g, v1);
2904	>	checkCompletedWithWrappedCancellationException(h0);
2905	>	checkCompletedWithWrappedCancellationException(h1);
2906	>	checkCompletedWithWrappedCancellationException(h2);
2907	>	checkCompletedWithWrappedCancellationException(h3);
2908	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2909	>	}}
2910
2911		/**
2912	<	* thenApplyAsync result completes exceptionally if action does
2912	>	* runAfterEither result completes exceptionally if action does
2913		*/
2914	<	public void testThenApplyAsync3() {
2915	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2916	<	FailingFunction r = new FailingFunction();
2917	<	CompletableFuture<Integer> g = f.thenApplyAsync(r);
2918	<	f.complete(null);
2919	<	checkCompletedWithWrappedCFException(g);
2920	<	}
2914	>	public void testRunAfterEither_actionFailed() {
2915	>	for (ExecutionMode m : ExecutionMode.values())
2916	>	for (Integer v1 : new Integer[] { 1, null })
2917	>	for (Integer v2 : new Integer[] { 2, null })
2918	>	{
2919	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2920	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2921	>	final FailingRunnable[] rs = new FailingRunnable[6];
2922	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
2923	>
2924	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2925	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2926	>	assertTrue(f.complete(v1));
2927	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2928	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2929	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2930	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2931	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2932	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2933	>	for (int i = 0; i < 4; i++) rs[i].assertInvoked();
2934	>	assertTrue(g.complete(v2));
2935	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2936	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2937	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2938	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2939	>
2940	>	checkCompletedNormally(f, v1);
2941	>	checkCompletedNormally(g, v2);
2942	>	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2943	>	}}
2944
2945		/**
2946	<	* thenApplyAsync result completes exceptionally if source cancelled
2946	>	* thenCompose result completes normally after normal completion of source
2947		*/
2948	<	public void testThenApplyAsync4() {
2949	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2950	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
2951	<	assertTrue(f.cancel(true));
2952	<	checkCompletedWithWrappedCancellationException(g);
2953	<	}
2948	>	public void testThenCompose_normalCompletion() {
2949	>	for (ExecutionMode m : ExecutionMode.values())
2950	>	for (boolean createIncomplete : new boolean[] { true, false })
2951	>	for (Integer v1 : new Integer[] { 1, null })
2952	>	{
2953	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2954	>	final CompletableFutureInc r = new CompletableFutureInc(m);
2955	>	if (!createIncomplete) assertTrue(f.complete(v1));
2956	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
2957	>	if (createIncomplete) assertTrue(f.complete(v1));
2958	>
2959	>	checkCompletedNormally(g, inc(v1));
2960	>	checkCompletedNormally(f, v1);
2961	>	r.assertValue(v1);
2962	>	}}
2963
2964		/**
2965	<	* thenAcceptAsync result completes normally after normal
2965	>	* thenCompose result completes exceptionally after exceptional
2966		* completion of source
2967		*/
2968	<	public void testThenAcceptAsync() {
2969	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2970	<	IncAction r = new IncAction();
2971	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
2972	<	f.complete(one);
2973	<	checkCompletedNormally(g, null);
2974	<	assertEquals(r.value, 2);
2975	<	}
2968	>	public void testThenCompose_exceptionalCompletion() {
2969	>	for (ExecutionMode m : ExecutionMode.values())
2970	>	for (boolean createIncomplete : new boolean[] { true, false })
2971	>	{
2972	>	final CFException ex = new CFException();
2973	>	final CompletableFutureInc r = new CompletableFutureInc(m);
2974	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2975	>	if (!createIncomplete) f.completeExceptionally(ex);
2976	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
2977	>	if (createIncomplete) f.completeExceptionally(ex);
2978	>
2979	>	checkCompletedWithWrappedException(g, ex);
2980	>	checkCompletedExceptionally(f, ex);
2981	>	r.assertNotInvoked();
2982	>	}}
2983
2984		/**
2985	<	* thenAcceptAsync result completes exceptionally after exceptional
1435	<	* completion of source
2985	>	* thenCompose result completes exceptionally if action does
2986		*/
2987	<	public void testThenAcceptAsync2() {
2988	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2989	<	IncAction r = new IncAction();
2990	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
2991	<	f.completeExceptionally(new CFException());
2992	<	checkCompletedWithWrappedCFException(g);
2993	<	}
2987	>	public void testThenCompose_actionFailed() {
2988	>	for (ExecutionMode m : ExecutionMode.values())
2989	>	for (boolean createIncomplete : new boolean[] { true, false })
2990	>	for (Integer v1 : new Integer[] { 1, null })
2991	>	{
2992	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2993	>	final FailingCompletableFutureFunction r
2994	>	= new FailingCompletableFutureFunction(m);
2995	>	if (!createIncomplete) assertTrue(f.complete(v1));
2996	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
2997	>	if (createIncomplete) assertTrue(f.complete(v1));
2998	>
2999	>	checkCompletedWithWrappedException(g, r.ex);
3000	>	checkCompletedNormally(f, v1);
3001	>	}}
3002
3003		/**
3004	<	* thenAcceptAsync result completes exceptionally if action does
3004	>	* thenCompose result completes exceptionally if source cancelled
3005		*/
3006	<	public void testThenAcceptAsync3() {
3007	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3008	<	FailingConsumer r = new FailingConsumer();
3009	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
3010	<	f.complete(null);
3011	<	checkCompletedWithWrappedCFException(g);
3012	<	}
3006	>	public void testThenCompose_sourceCancelled() {
3007	>	for (ExecutionMode m : ExecutionMode.values())
3008	>	for (boolean createIncomplete : new boolean[] { true, false })
3009	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3010	>	{
3011	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3012	>	final CompletableFutureInc r = new CompletableFutureInc(m);
3013	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3014	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3015	>	if (createIncomplete) {
3016	>	checkIncomplete(g);
3017	>	assertTrue(f.cancel(mayInterruptIfRunning));
3018	>	}
3019
1456	–	/**
1457	–	* thenAcceptAsync result completes exceptionally if source cancelled
1458	–	*/
1459	–	public void testThenAcceptAsync4() {
1460	–	CompletableFuture<Integer> f = new CompletableFuture<>();
1461	–	IncAction r = new IncAction();
1462	–	CompletableFuture<Void> g = f.thenAcceptAsync(r);
1463	–	assertTrue(f.cancel(true));
3020		checkCompletedWithWrappedCancellationException(g);
3021	<	}
3022	<
1467	<	/**
1468	<	* thenCombineAsync result completes normally after normal
1469	<	* completion of sources
1470	<	*/
1471	<	public void testThenCombineAsync() {
1472	<	CompletableFuture<Integer> f, g, h;
1473	<
1474	<	f = new CompletableFuture<>();
1475	<	g = new CompletableFuture<>();
1476	<	h = f.thenCombineAsync(g, subtract);
1477	<	f.complete(3);
1478	<	checkIncomplete(h);
1479	<	g.complete(1);
1480	<	checkCompletedNormally(h, 2);
1481	<
1482	<	f = new CompletableFuture<>();
1483	<	g = new CompletableFuture<>();
1484	<	h = f.thenCombineAsync(g, subtract);
1485	<	g.complete(1);
1486	<	checkIncomplete(h);
1487	<	f.complete(3);
1488	<	checkCompletedNormally(h, 2);
1489	<
1490	<	f = new CompletableFuture<>();
1491	<	g = new CompletableFuture<>();
1492	<	g.complete(1);
1493	<	f.complete(3);
1494	<	h = f.thenCombineAsync(g, subtract);
1495	<	checkCompletedNormally(h, 2);
1496	<	}
1497	<
1498	<	/**
1499	<	* thenCombineAsync result completes exceptionally after exceptional
1500	<	* completion of either source
1501	<	*/
1502	<	public void testThenCombineAsync2() {
1503	<	CompletableFuture<Integer> f, g, h;
1504	<
1505	<	f = new CompletableFuture<>();
1506	<	g = new CompletableFuture<>();
1507	<	h = f.thenCombineAsync(g, subtract);
1508	<	f.completeExceptionally(new CFException());
1509	<	checkIncomplete(h);
1510	<	g.complete(1);
1511	<	checkCompletedWithWrappedCFException(h);
1512	<
1513	<	f = new CompletableFuture<>();
1514	<	g = new CompletableFuture<>();
1515	<	h = f.thenCombineAsync(g, subtract);
1516	<	g.completeExceptionally(new CFException());
1517	<	checkIncomplete(h);
1518	<	f.complete(3);
1519	<	checkCompletedWithWrappedCFException(h);
1520	<
1521	<	f = new CompletableFuture<>();
1522	<	g = new CompletableFuture<>();
1523	<	g.completeExceptionally(new CFException());
1524	<	f.complete(3);
1525	<	h = f.thenCombineAsync(g, subtract);
1526	<	checkCompletedWithWrappedCFException(h);
1527	<	}
1528	<
1529	<	/**
1530	<	* thenCombineAsync result completes exceptionally if action does
1531	<	*/
1532	<	public void testThenCombineAsync3() {
1533	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1534	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1535	<	FailingBiFunction r = new FailingBiFunction();
1536	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, r);
1537	<	f.complete(one);
1538	<	checkIncomplete(g);
1539	<	assertFalse(r.ran);
1540	<	f2.complete(two);
1541	<	checkCompletedWithWrappedCFException(g);
1542	<	assertTrue(r.ran);
1543	<	}
1544	<
1545	<	/**
1546	<	* thenCombineAsync result completes exceptionally if either source cancelled
1547	<	*/
1548	<	public void testThenCombineAsync4() {
1549	<	CompletableFuture<Integer> f, g, h;
1550	<
1551	<	f = new CompletableFuture<>();
1552	<	g = new CompletableFuture<>();
1553	<	h = f.thenCombineAsync(g, subtract);
1554	<	assertTrue(f.cancel(true));
1555	<	checkIncomplete(h);
1556	<	g.complete(1);
1557	<	checkCompletedWithWrappedCancellationException(h);
1558	<
1559	<	f = new CompletableFuture<>();
1560	<	g = new CompletableFuture<>();
1561	<	h = f.thenCombineAsync(g, subtract);
1562	<	assertTrue(g.cancel(true));
1563	<	checkIncomplete(h);
1564	<	f.complete(3);
1565	<	checkCompletedWithWrappedCancellationException(h);
1566	<
1567	<	f = new CompletableFuture<>();
1568	<	g = new CompletableFuture<>();
1569	<	g.complete(3);
1570	<	assertTrue(f.cancel(true));
1571	<	h = f.thenCombineAsync(g, subtract);
1572	<	checkCompletedWithWrappedCancellationException(h);
1573	<
1574	<	f = new CompletableFuture<>();
1575	<	g = new CompletableFuture<>();
1576	<	f.complete(3);
1577	<	assertTrue(g.cancel(true));
1578	<	h = f.thenCombineAsync(g, subtract);
1579	<	checkCompletedWithWrappedCancellationException(h);
1580	<	}
3021	>	checkCancelled(f);
3022	>	}}
3023
3024		/**
3025	<	* thenAcceptBothAsync result completes normally after normal
1584	<	* completion of sources
3025	>	* thenCompose result completes exceptionally if the result of the action does
3026		*/
3027	<	public void testThenAcceptBothAsync() {
3028	<	CompletableFuture<Integer> f, g;
3029	<	CompletableFuture<Void> h;
3030	<	SubtractAction r;
3027	>	public void testThenCompose_actionReturnsFailingFuture() {
3028	>	for (ExecutionMode m : ExecutionMode.values())
3029	>	for (int order = 0; order < 6; order++)
3030	>	for (Integer v1 : new Integer[] { 1, null })
3031	>	{
3032	>	final CFException ex = new CFException();
3033	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3034	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
3035	>	final CompletableFuture<Integer> h;
3036	>	// Test all permutations of orders
3037	>	switch (order) {
3038	>	case 0:
3039	>	assertTrue(f.complete(v1));
3040	>	assertTrue(g.completeExceptionally(ex));
3041	>	h = m.thenCompose(f, (x -> g));
3042	>	break;
3043	>	case 1:
3044	>	assertTrue(f.complete(v1));
3045	>	h = m.thenCompose(f, (x -> g));
3046	>	assertTrue(g.completeExceptionally(ex));
3047	>	break;
3048	>	case 2:
3049	>	assertTrue(g.completeExceptionally(ex));
3050	>	assertTrue(f.complete(v1));
3051	>	h = m.thenCompose(f, (x -> g));
3052	>	break;
3053	>	case 3:
3054	>	assertTrue(g.completeExceptionally(ex));
3055	>	h = m.thenCompose(f, (x -> g));
3056	>	assertTrue(f.complete(v1));
3057	>	break;
3058	>	case 4:
3059	>	h = m.thenCompose(f, (x -> g));
3060	>	assertTrue(f.complete(v1));
3061	>	assertTrue(g.completeExceptionally(ex));
3062	>	break;
3063	>	case 5:
3064	>	h = m.thenCompose(f, (x -> g));
3065	>	assertTrue(f.complete(v1));
3066	>	assertTrue(g.completeExceptionally(ex));
3067	>	break;
3068	>	default: throw new AssertionError();
3069	>	}
3070
3071	<	f = new CompletableFuture<>();
3072	<	g = new CompletableFuture<>();
3073	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
3074	<	f.complete(3);
1595	<	checkIncomplete(h);
1596	<	g.complete(1);
1597	<	checkCompletedNormally(h, null);
1598	<	assertEquals(r.value, 2);
3071	>	checkCompletedExceptionally(g, ex);
3072	>	checkCompletedWithWrappedException(h, ex);
3073	>	checkCompletedNormally(f, v1);
3074	>	}}
3075
3076	<	f = new CompletableFuture<>();
1601	<	g = new CompletableFuture<>();
1602	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1603	<	g.complete(1);
1604	<	checkIncomplete(h);
1605	<	f.complete(3);
1606	<	checkCompletedNormally(h, null);
1607	<	assertEquals(r.value, 2);
1608	<
1609	<	f = new CompletableFuture<>();
1610	<	g = new CompletableFuture<>();
1611	<	g.complete(1);
1612	<	f.complete(3);
1613	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1614	<	checkCompletedNormally(h, null);
1615	<	assertEquals(r.value, 2);
1616	<	}
3076	>	// other static methods
3077
3078		/**
3079	<	* thenAcceptBothAsync result completes exceptionally after exceptional
3080	<	* completion of source
3079	>	* allOf(no component futures) returns a future completed normally
3080	>	* with the value null
3081		*/
3082	<	public void testThenAcceptBothAsync2() {
3083	<	CompletableFuture<Integer> f, g;
3084	<	CompletableFuture<Void> h;
1625	<	SubtractAction r;
1626	<
1627	<	f = new CompletableFuture<>();
1628	<	g = new CompletableFuture<>();
1629	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1630	<	f.completeExceptionally(new CFException());
1631	<	checkIncomplete(h);
1632	<	g.complete(1);
1633	<	checkCompletedWithWrappedCFException(h);
1634	<
1635	<	f = new CompletableFuture<>();
1636	<	g = new CompletableFuture<>();
1637	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1638	<	g.completeExceptionally(new CFException());
1639	<	checkIncomplete(h);
1640	<	f.complete(3);
1641	<	checkCompletedWithWrappedCFException(h);
1642	<
1643	<	f = new CompletableFuture<>();
1644	<	g = new CompletableFuture<>();
1645	<	f.complete(3);
1646	<	g.completeExceptionally(new CFException());
1647	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1648	<	checkCompletedWithWrappedCFException(h);
1649	<
1650	<	f = new CompletableFuture<>();
1651	<	g = new CompletableFuture<>();
1652	<	f.completeExceptionally(new CFException());
1653	<	g.complete(3);
1654	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1655	<	checkCompletedWithWrappedCFException(h);
3082	>	public void testAllOf_empty() throws Exception {
3083	>	CompletableFuture<Void> f = CompletableFuture.allOf();
3084	>	checkCompletedNormally(f, null);
3085		}
3086
3087		/**
3088	<	* thenAcceptBothAsync result completes exceptionally if action does
3088	>	* allOf returns a future completed normally with the value null
3089	>	* when all components complete normally
3090		*/
3091	<	public void testThenAcceptBothAsync3() {
3092	<	CompletableFuture<Integer> f, g;
3093	<	CompletableFuture<Void> h;
3094	<	FailingBiConsumer r;
3095	<
3096	<	f = new CompletableFuture<>();
3097	<	g = new CompletableFuture<>();
3098	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer());
3099	<	f.complete(3);
3100	<	checkIncomplete(h);
3101	<	g.complete(1);
3102	<	checkCompletedWithWrappedCFException(h);
3103	<
3104	<	f = new CompletableFuture<>();
3105	<	g = new CompletableFuture<>();
1676	<	f.complete(3);
1677	<	g.complete(1);
1678	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer());
1679	<	checkCompletedWithWrappedCFException(h);
3091	>	public void testAllOf_normal() throws Exception {
3092	>	for (int k = 1; k < 10; k++) {
3093	>	CompletableFuture<Integer>[] fs
3094	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3095	>	for (int i = 0; i < k; i++)
3096	>	fs[i] = new CompletableFuture<>();
3097	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3098	>	for (int i = 0; i < k; i++) {
3099	>	checkIncomplete(f);
3100	>	checkIncomplete(CompletableFuture.allOf(fs));
3101	>	fs[i].complete(one);
3102	>	}
3103	>	checkCompletedNormally(f, null);
3104	>	checkCompletedNormally(CompletableFuture.allOf(fs), null);
3105	>	}
3106		}
3107
3108	<	/**
3109	<	* thenAcceptBothAsync result completes exceptionally if either source cancelled
3110	<	*/
3111	<	public void testThenAcceptBothAsync4() {
3112	<	CompletableFuture<Integer> f, g;
3113	<	CompletableFuture<Void> h;
3114	<	SubtractAction r;
3115	<
3116	<	f = new CompletableFuture<>();
3117	<	g = new CompletableFuture<>();
3118	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
3119	<	assertTrue(f.cancel(true));
3120	<	checkIncomplete(h);
3121	<	g.complete(1);
3122	<	checkCompletedWithWrappedCancellationException(h);
1697	<
1698	<	f = new CompletableFuture<>();
1699	<	g = new CompletableFuture<>();
1700	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1701	<	assertTrue(g.cancel(true));
1702	<	checkIncomplete(h);
1703	<	f.complete(3);
1704	<	checkCompletedWithWrappedCancellationException(h);
1705	<
1706	<	f = new CompletableFuture<>();
1707	<	g = new CompletableFuture<>();
1708	<	f.complete(3);
1709	<	assertTrue(g.cancel(true));
1710	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1711	<	checkCompletedWithWrappedCancellationException(h);
1712	<
1713	<	f = new CompletableFuture<>();
1714	<	g = new CompletableFuture<>();
1715	<	assertTrue(f.cancel(true));
1716	<	g.complete(3);
1717	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1718	<	checkCompletedWithWrappedCancellationException(h);
3108	>	public void testAllOf_normal_backwards() throws Exception {
3109	>	for (int k = 1; k < 10; k++) {
3110	>	CompletableFuture<Integer>[] fs
3111	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3112	>	for (int i = 0; i < k; i++)
3113	>	fs[i] = new CompletableFuture<>();
3114	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3115	>	for (int i = k - 1; i >= 0; i--) {
3116	>	checkIncomplete(f);
3117	>	checkIncomplete(CompletableFuture.allOf(fs));
3118	>	fs[i].complete(one);
3119	>	}
3120	>	checkCompletedNormally(f, null);
3121	>	checkCompletedNormally(CompletableFuture.allOf(fs), null);
3122	>	}
3123		}
3124
3125	<	/**
3126	<	* runAfterBothAsync result completes normally after normal
3127	<	* completion of sources
3128	<	*/
3129	<	public void testRunAfterBothAsync() {
3130	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3131	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3132	<	Noop r = new Noop();
3133	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
3134	<	f.complete(one);
3135	<	checkIncomplete(g);
3136	<	f2.complete(two);
3137	<	checkCompletedNormally(g, null);
3138	<	assertTrue(r.ran);
3125	>	public void testAllOf_exceptional() throws Exception {
3126	>	for (int k = 1; k < 10; k++) {
3127	>	CompletableFuture<Integer>[] fs
3128	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3129	>	CFException ex = new CFException();
3130	>	for (int i = 0; i < k; i++)
3131	>	fs[i] = new CompletableFuture<>();
3132	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3133	>	for (int i = 0; i < k; i++) {
3134	>	checkIncomplete(f);
3135	>	checkIncomplete(CompletableFuture.allOf(fs));
3136	>	if (i != k / 2) {
3137	>	fs[i].complete(i);
3138	>	checkCompletedNormally(fs[i], i);
3139	>	} else {
3140	>	fs[i].completeExceptionally(ex);
3141	>	checkCompletedExceptionally(fs[i], ex);
3142	>	}
3143	>	}
3144	>	checkCompletedWithWrappedException(f, ex);
3145	>	checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3146	>	}
3147		}
3148
3149		/**
3150	<	* runAfterBothAsync result completes exceptionally after exceptional
1739	<	* completion of source
3150	>	* anyOf(no component futures) returns an incomplete future
3151		*/
3152	<	public void testRunAfterBothAsync2() {
3153	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3154	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3155	<	Noop r = new Noop();
3156	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1746	<	f.completeExceptionally(new CFException());
1747	<	f2.complete(two);
1748	<	checkCompletedWithWrappedCFException(g);
3152	>	public void testAnyOf_empty() throws Exception {
3153	>	for (Integer v1 : new Integer[] { 1, null })
3154	>	{
3155	>	CompletableFuture<Object> f = CompletableFuture.anyOf();
3156	>	checkIncomplete(f);
3157
3158	<	r = new Noop();
3159	<	f = new CompletableFuture<>();
3160	<	f2 = new CompletableFuture<>();
1753	<	g = f.runAfterBothAsync(f2, r);
1754	<	f.complete(one);
1755	<	f2.completeExceptionally(new CFException());
1756	<	checkCompletedWithWrappedCFException(g);
1757	<	}
3158	>	f.complete(v1);
3159	>	checkCompletedNormally(f, v1);
3160	>	}}
3161
3162		/**
3163	<	* runAfterBothAsync result completes exceptionally if action does
3163	>	* anyOf returns a future completed normally with a value when
3164	>	* a component future does
3165		*/
3166	<	public void testRunAfterBothAsync3() {
3167	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3168	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3169	<	FailingNoop r = new FailingNoop();
3170	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
3171	<	f.complete(one);
3172	<	checkIncomplete(g);
3173	<	f2.complete(two);
3174	<	checkCompletedWithWrappedCFException(g);
3166	>	public void testAnyOf_normal() throws Exception {
3167	>	for (int k = 0; k < 10; k++) {
3168	>	CompletableFuture[] fs = new CompletableFuture[k];
3169	>	for (int i = 0; i < k; i++)
3170	>	fs[i] = new CompletableFuture<>();
3171	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3172	>	checkIncomplete(f);
3173	>	for (int i = 0; i < k; i++) {
3174	>	fs[i].complete(i);
3175	>	checkCompletedNormally(f, 0);
3176	>	int x = (int) CompletableFuture.anyOf(fs).join();
3177	>	assertTrue(0 <= x && x <= i);
3178	>	}
3179	>	}
3180		}
3181	<
3182	<	/**
3183	<	* runAfterBothAsync result completes exceptionally if either source cancelled
3184	<	*/
3185	<	public void testRunAfterBothAsync4() {
3186	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3187	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3188	<	Noop r = new Noop();
3189	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
3190	<	assertTrue(f.cancel(true));
3191	<	f2.complete(two);
3192	<	checkCompletedWithWrappedCancellationException(g);
3193	<
3194	<	r = new Noop();
1786	<	f = new CompletableFuture<>();
1787	<	f2 = new CompletableFuture<>();
1788	<	g = f.runAfterBothAsync(f2, r);
1789	<	f.complete(one);
1790	<	assertTrue(f2.cancel(true));
1791	<	checkCompletedWithWrappedCancellationException(g);
3181	>	public void testAnyOf_normal_backwards() throws Exception {
3182	>	for (int k = 0; k < 10; k++) {
3183	>	CompletableFuture[] fs = new CompletableFuture[k];
3184	>	for (int i = 0; i < k; i++)
3185	>	fs[i] = new CompletableFuture<>();
3186	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3187	>	checkIncomplete(f);
3188	>	for (int i = k - 1; i >= 0; i--) {
3189	>	fs[i].complete(i);
3190	>	checkCompletedNormally(f, k - 1);
3191	>	int x = (int) CompletableFuture.anyOf(fs).join();
3192	>	assertTrue(i <= x && x <= k - 1);
3193	>	}
3194	>	}
3195		}
3196
3197		/**
3198	<	* applyToEitherAsync result completes normally after normal
1796	<	* completion of sources
3198	>	* anyOf result completes exceptionally when any component does.
3199		*/
3200	<	public void testApplyToEitherAsync() {
3201	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3202	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3203	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
3204	<	f.complete(one);
3205	<	checkCompletedNormally(g, two);
3206	<
3207	<	f = new CompletableFuture<>();
3208	<	f.complete(one);
3209	<	f2 = new CompletableFuture<>();
3210	<	g = f.applyToEitherAsync(f2, inc);
3211	<	checkCompletedNormally(g, two);
3200	>	public void testAnyOf_exceptional() throws Exception {
3201	>	for (int k = 0; k < 10; k++) {
3202	>	CompletableFuture[] fs = new CompletableFuture[k];
3203	>	CFException[] exs = new CFException[k];
3204	>	for (int i = 0; i < k; i++) {
3205	>	fs[i] = new CompletableFuture<>();
3206	>	exs[i] = new CFException();
3207	>	}
3208	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3209	>	checkIncomplete(f);
3210	>	for (int i = 0; i < k; i++) {
3211	>	fs[i].completeExceptionally(exs[i]);
3212	>	checkCompletedWithWrappedException(f, exs[0]);
3213	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3214	>	}
3215	>	}
3216		}
3217
3218	<	/**
3219	<	* applyToEitherAsync result completes exceptionally after exceptional
3220	<	* completion of source
3221	<	*/
3222	<	public void testApplyToEitherAsync2() {
3223	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3224	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3225	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
3226	<	f.completeExceptionally(new CFException());
3227	<	checkCompletedWithWrappedCFException(g);
3228	<
3229	<	f = new CompletableFuture<>();
3230	<	f2 = new CompletableFuture<>();
3231	<	f2.completeExceptionally(new CFException());
3232	<	g = f.applyToEitherAsync(f2, inc);
3233	<	f.complete(one);
1828	<	checkCompletedWithWrappedCFException(g);
3218	>	public void testAnyOf_exceptional_backwards() throws Exception {
3219	>	for (int k = 0; k < 10; k++) {
3220	>	CompletableFuture[] fs = new CompletableFuture[k];
3221	>	CFException[] exs = new CFException[k];
3222	>	for (int i = 0; i < k; i++) {
3223	>	fs[i] = new CompletableFuture<>();
3224	>	exs[i] = new CFException();
3225	>	}
3226	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3227	>	checkIncomplete(f);
3228	>	for (int i = k - 1; i >= 0; i--) {
3229	>	fs[i].completeExceptionally(exs[i]);
3230	>	checkCompletedWithWrappedException(f, exs[k - 1]);
3231	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3232	>	}
3233	>	}
3234		}
3235
3236		/**
3237	<	* applyToEitherAsync result completes exceptionally if action does
3237	>	* Completion methods throw NullPointerException with null arguments
3238		*/
3239	<	public void testApplyToEitherAsync3() {
3239	>	@SuppressWarnings("FutureReturnValueIgnored")
3240	>	public void testNPE() {
3241		CompletableFuture<Integer> f = new CompletableFuture<>();
3242	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3243	<	FailingFunction r = new FailingFunction();
3244	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r);
1839	<	f.complete(one);
1840	<	checkCompletedWithWrappedCFException(g);
1841	<	}
3242	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3243	>	CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
3244	>	ThreadExecutor exec = new ThreadExecutor();
3245
3246	<	/**
3247	<	* applyToEitherAsync result completes exceptionally if either source cancelled
3248	<	*/
3249	<	public void testApplyToEitherAsync4() {
3250	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3251	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3252	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
3253	<	assertTrue(f.cancel(true));
3254	<	checkCompletedWithWrappedCancellationException(g);
3246	>	Runnable[] throwingActions = {
3247	>	() -> CompletableFuture.supplyAsync(null),
3248	>	() -> CompletableFuture.supplyAsync(null, exec),
3249	>	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3250	>
3251	>	() -> CompletableFuture.runAsync(null),
3252	>	() -> CompletableFuture.runAsync(null, exec),
3253	>	() -> CompletableFuture.runAsync(() -> {}, null),
3254	>
3255	>	() -> f.completeExceptionally(null),
3256	>
3257	>	() -> f.thenApply(null),
3258	>	() -> f.thenApplyAsync(null),
3259	>	() -> f.thenApplyAsync(x -> x, null),
3260	>	() -> f.thenApplyAsync(null, exec),
3261	>
3262	>	() -> f.thenAccept(null),
3263	>	() -> f.thenAcceptAsync(null),
3264	>	() -> f.thenAcceptAsync(x -> {} , null),
3265	>	() -> f.thenAcceptAsync(null, exec),
3266	>
3267	>	() -> f.thenRun(null),
3268	>	() -> f.thenRunAsync(null),
3269	>	() -> f.thenRunAsync(() -> {} , null),
3270	>	() -> f.thenRunAsync(null, exec),
3271	>
3272	>	() -> f.thenCombine(g, null),
3273	>	() -> f.thenCombineAsync(g, null),
3274	>	() -> f.thenCombineAsync(g, null, exec),
3275	>	() -> f.thenCombine(nullFuture, (x, y) -> x),
3276	>	() -> f.thenCombineAsync(nullFuture, (x, y) -> x),
3277	>	() -> f.thenCombineAsync(nullFuture, (x, y) -> x, exec),
3278	>	() -> f.thenCombineAsync(g, (x, y) -> x, null),
3279	>
3280	>	() -> f.thenAcceptBoth(g, null),
3281	>	() -> f.thenAcceptBothAsync(g, null),
3282	>	() -> f.thenAcceptBothAsync(g, null, exec),
3283	>	() -> f.thenAcceptBoth(nullFuture, (x, y) -> {}),
3284	>	() -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}),
3285	>	() -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}, exec),
3286	>	() -> f.thenAcceptBothAsync(g, (x, y) -> {}, null),
3287	>
3288	>	() -> f.runAfterBoth(g, null),
3289	>	() -> f.runAfterBothAsync(g, null),
3290	>	() -> f.runAfterBothAsync(g, null, exec),
3291	>	() -> f.runAfterBoth(nullFuture, () -> {}),
3292	>	() -> f.runAfterBothAsync(nullFuture, () -> {}),
3293	>	() -> f.runAfterBothAsync(nullFuture, () -> {}, exec),
3294	>	() -> f.runAfterBothAsync(g, () -> {}, null),
3295	>
3296	>	() -> f.applyToEither(g, null),
3297	>	() -> f.applyToEitherAsync(g, null),
3298	>	() -> f.applyToEitherAsync(g, null, exec),
3299	>	() -> f.applyToEither(nullFuture, x -> x),
3300	>	() -> f.applyToEitherAsync(nullFuture, x -> x),
3301	>	() -> f.applyToEitherAsync(nullFuture, x -> x, exec),
3302	>	() -> f.applyToEitherAsync(g, x -> x, null),
3303	>
3304	>	() -> f.acceptEither(g, null),
3305	>	() -> f.acceptEitherAsync(g, null),
3306	>	() -> f.acceptEitherAsync(g, null, exec),
3307	>	() -> f.acceptEither(nullFuture, x -> {}),
3308	>	() -> f.acceptEitherAsync(nullFuture, x -> {}),
3309	>	() -> f.acceptEitherAsync(nullFuture, x -> {}, exec),
3310	>	() -> f.acceptEitherAsync(g, x -> {}, null),
3311	>
3312	>	() -> f.runAfterEither(g, null),
3313	>	() -> f.runAfterEitherAsync(g, null),
3314	>	() -> f.runAfterEitherAsync(g, null, exec),
3315	>	() -> f.runAfterEither(nullFuture, () -> {}),
3316	>	() -> f.runAfterEitherAsync(nullFuture, () -> {}),
3317	>	() -> f.runAfterEitherAsync(nullFuture, () -> {}, exec),
3318	>	() -> f.runAfterEitherAsync(g, () -> {}, null),
3319	>
3320	>	() -> f.thenCompose(null),
3321	>	() -> f.thenComposeAsync(null),
3322	>	() -> f.thenComposeAsync(new CompletableFutureInc(ExecutionMode.EXECUTOR), null),
3323	>	() -> f.thenComposeAsync(null, exec),
3324	>
3325	>	() -> f.exceptionally(null),
3326	>
3327	>	() -> f.handle(null),
3328	>
3329	>	() -> CompletableFuture.allOf((CompletableFuture<?>)null),
3330	>	() -> CompletableFuture.allOf((CompletableFuture<?>[])null),
3331	>	() -> CompletableFuture.allOf(f, null),
3332	>	() -> CompletableFuture.allOf(null, f),
3333	>
3334	>	() -> CompletableFuture.anyOf((CompletableFuture<?>)null),
3335	>	() -> CompletableFuture.anyOf((CompletableFuture<?>[])null),
3336	>	() -> CompletableFuture.anyOf(f, null),
3337	>	() -> CompletableFuture.anyOf(null, f),
3338	>
3339	>	() -> f.obtrudeException(null),
3340	>
3341	>	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3342	>	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3343	>	() -> CompletableFuture.delayedExecutor(1L, null),
3344
3345	<	f = new CompletableFuture<>();
3346	<	f2 = new CompletableFuture<>();
1855	<	assertTrue(f2.cancel(true));
1856	<	g = f.applyToEitherAsync(f2, inc);
1857	<	checkCompletedWithWrappedCancellationException(g);
1858	<	}
3345	>	() -> f.orTimeout(1L, null),
3346	>	() -> f.completeOnTimeout(42, 1L, null),
3347
3348	<	/**
3349	<	* acceptEitherAsync result completes normally after normal
3350	<	* completion of sources
1863	<	*/
1864	<	public void testAcceptEitherAsync() {
1865	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1866	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1867	<	IncAction r = new IncAction();
1868	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1869	<	f.complete(one);
1870	<	checkCompletedNormally(g, null);
1871	<	assertEquals(r.value, 2);
3348	>	() -> CompletableFuture.failedFuture(null),
3349	>	() -> CompletableFuture.failedStage(null),
3350	>	};
3351
3352	<	r = new IncAction();
3353	<	f = new CompletableFuture<>();
1875	<	f.complete(one);
1876	<	f2 = new CompletableFuture<>();
1877	<	g = f.acceptEitherAsync(f2, r);
1878	<	checkCompletedNormally(g, null);
1879	<	assertEquals(r.value, 2);
3352	>	assertThrows(NullPointerException.class, throwingActions);
3353	>	assertEquals(0, exec.count.get());
3354		}
3355
3356		/**
3357	<	* acceptEitherAsync result completes exceptionally after exceptional
1884	<	* completion of source
3357	>	* Test submissions to an executor that rejects all tasks.
3358		*/
3359	<	public void testAcceptEitherAsync2() {
3360	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3361	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3362	<	IncAction r = new IncAction();
3363	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
3364	<	f.completeExceptionally(new CFException());
3365	<	checkCompletedWithWrappedCFException(g);
3359	>	public void testRejectingExecutor() {
3360	>	for (Integer v : new Integer[] { 1, null })
3361	>	{
3362	>	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3363	>
3364	>	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3365	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3366	>
3367	>	List<CompletableFuture<?>> futures = new ArrayList<>();
3368	>
3369	>	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3370	>	srcs.add(complete);
3371	>	srcs.add(incomplete);
3372	>
3373	>	for (CompletableFuture<Integer> src : srcs) {
3374	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3375	>	fs.add(src.thenRunAsync(() -> {}, e));
3376	>	fs.add(src.thenAcceptAsync(z -> {}, e));
3377	>	fs.add(src.thenApplyAsync(z -> z, e));
3378	>
3379	>	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3380	>	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3381	>	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3382	>
3383	>	fs.add(src.applyToEitherAsync(src, z -> z, e));
3384	>	fs.add(src.acceptEitherAsync(src, z -> {}, e));
3385	>	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3386	>
3387	>	fs.add(src.thenComposeAsync(z -> null, e));
3388	>	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3389	>	fs.add(src.handleAsync((z, t) -> null, e));
3390	>
3391	>	for (CompletableFuture<?> future : fs) {
3392	>	if (src.isDone())
3393	>	checkCompletedWithWrappedException(future, e.ex);
3394	>	else
3395	>	checkIncomplete(future);
3396	>	}
3397	>	futures.addAll(fs);
3398	>	}
3399
3400	<	r = new IncAction();
3401	<	f = new CompletableFuture<>();
1896	<	f2 = new CompletableFuture<>();
1897	<	f2.completeExceptionally(new CFException());
1898	<	g = f.acceptEitherAsync(f2, r);
1899	<	f.complete(one);
1900	<	checkCompletedWithWrappedCFException(g);
1901	<	}
3400	>	{
3401	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3402
3403	<	/**
3404	<	* acceptEitherAsync result completes exceptionally if action does
1905	<	*/
1906	<	public void testAcceptEitherAsync3() {
1907	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1908	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1909	<	FailingConsumer r = new FailingConsumer();
1910	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1911	<	f.complete(one);
1912	<	checkCompletedWithWrappedCFException(g);
1913	<	}
3403	>	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3404	>	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3405
3406	<	/**
3407	<	* acceptEitherAsync result completes exceptionally if either
1917	<	* source cancelled
1918	<	*/
1919	<	public void testAcceptEitherAsync4() {
1920	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1921	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1922	<	IncAction r = new IncAction();
1923	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1924	<	assertTrue(f.cancel(true));
1925	<	checkCompletedWithWrappedCancellationException(g);
3406	>	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3407	>	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3408
3409	<	r = new IncAction();
3410	<	f = new CompletableFuture<>();
1929	<	f2 = new CompletableFuture<>();
1930	<	assertTrue(f2.cancel(true));
1931	<	g = f.acceptEitherAsync(f2, r);
1932	<	checkCompletedWithWrappedCancellationException(g);
1933	<	}
3409	>	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3410	>	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3411
3412	<	/**
3413	<	* runAfterEitherAsync result completes normally after normal
3414	<	* completion of sources
3415	<	*/
1939	<	public void testRunAfterEitherAsync() {
1940	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1941	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1942	<	Noop r = new Noop();
1943	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1944	<	f.complete(one);
1945	<	checkCompletedNormally(g, null);
1946	<	assertTrue(r.ran);
3412	>	for (CompletableFuture<?> future : fs)
3413	>	checkIncomplete(future);
3414	>	futures.addAll(fs);
3415	>	}
3416
3417	<	r = new Noop();
3418	<	f = new CompletableFuture<>();
1950	<	f.complete(one);
1951	<	f2 = new CompletableFuture<>();
1952	<	g = f.runAfterEitherAsync(f2, r);
1953	<	checkCompletedNormally(g, null);
1954	<	assertTrue(r.ran);
1955	<	}
3417	>	{
3418	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3419
3420	<	/**
3421	<	* runAfterEitherAsync result completes exceptionally after exceptional
1959	<	* completion of source
1960	<	*/
1961	<	public void testRunAfterEitherAsync2() {
1962	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1963	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1964	<	Noop r = new Noop();
1965	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1966	<	f.completeExceptionally(new CFException());
1967	<	checkCompletedWithWrappedCFException(g);
3420	>	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3421	>	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3422
3423	<	r = new Noop();
3424	<	f = new CompletableFuture<>();
1971	<	f2 = new CompletableFuture<>();
1972	<	f2.completeExceptionally(new CFException());
1973	<	g = f.runAfterEitherAsync(f2, r);
1974	<	f.complete(one);
1975	<	checkCompletedWithWrappedCFException(g);
1976	<	}
3423	>	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3424	>	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3425
3426	<	/**
3427	<	* runAfterEitherAsync result completes exceptionally if action does
1980	<	*/
1981	<	public void testRunAfterEitherAsync3() {
1982	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1983	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1984	<	FailingNoop r = new FailingNoop();
1985	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1986	<	f.complete(one);
1987	<	checkCompletedWithWrappedCFException(g);
1988	<	}
3426	>	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3427	>	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3428
3429	<	/**
3430	<	* runAfterEitherAsync result completes exceptionally if either
3431	<	* source cancelled
3432	<	*/
1994	<	public void testRunAfterEitherAsync4() {
1995	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1996	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1997	<	Noop r = new Noop();
1998	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1999	<	assertTrue(f.cancel(true));
2000	<	checkCompletedWithWrappedCancellationException(g);
2001	<
2002	<	r = new Noop();
2003	<	f = new CompletableFuture<>();
2004	<	f2 = new CompletableFuture<>();
2005	<	assertTrue(f2.cancel(true));
2006	<	g = f.runAfterEitherAsync(f2, r);
2007	<	checkCompletedWithWrappedCancellationException(g);
2008	<	}
3429	>	for (CompletableFuture<?> future : fs)
3430	>	checkCompletedWithWrappedException(future, e.ex);
3431	>	futures.addAll(fs);
3432	>	}
3433
3434	<	/**
2011	<	* thenComposeAsync result completes normally after normal
2012	<	* completion of source
2013	<	*/
2014	<	public void testThenComposeAsync() {
2015	<	CompletableFuture<Integer> f, g;
2016	<	CompletableFutureInc r;
3434	>	incomplete.complete(v);
3435
3436	<	f = new CompletableFuture<>();
3437	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2020	<	f.complete(one);
2021	<	checkCompletedNormally(g, two);
3436	>	for (CompletableFuture<?> future : futures)
3437	>	checkCompletedWithWrappedException(future, e.ex);
3438
3439	<	f = new CompletableFuture<>();
3440	<	f.complete(one);
2025	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2026	<	checkCompletedNormally(g, two);
2027	<	}
3439	>	assertEquals(futures.size(), e.count.get());
3440	>	}}
3441
3442		/**
3443	<	* thenComposeAsync result completes exceptionally after
3444	<	* exceptional completion of source
3443	>	* Test submissions to an executor that rejects all tasks, but
3444	>	* should never be invoked because the dependent future is
3445	>	* explicitly completed.
3446		*/
3447	<	public void testThenComposeAsync2() {
3448	<	CompletableFuture<Integer> f, g;
3449	<	CompletableFutureInc r;
3447	>	public void testRejectingExecutorNeverInvoked() {
3448	>	for (Integer v : new Integer[] { 1, null })
3449	>	{
3450	>	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3451
3452	<	f = new CompletableFuture<>();
3453	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2039	<	f.completeExceptionally(new CFException());
2040	<	checkCompletedWithWrappedCFException(g);
2041	<	assertFalse(r.ran);
3452	>	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3453	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3454
3455	<	f = new CompletableFuture<>();
2044	<	f.completeExceptionally(new CFException());
2045	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2046	<	checkCompletedWithWrappedCFException(g);
2047	<	assertFalse(r.ran);
2048	<	}
3455	>	List<CompletableFuture<?>> futures = new ArrayList<>();
3456
3457	<	/**
3458	<	* thenComposeAsync result completes exceptionally if action does
3459	<	*/
2053	<	public void testThenComposeAsync3() {
2054	<	CompletableFuture<Integer> f, g;
2055	<	FailingCompletableFutureFunction r;
3457	>	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3458	>	srcs.add(complete);
3459	>	srcs.add(incomplete);
3460
3461	<	f = new CompletableFuture<>();
3462	<	g = f.thenComposeAsync(r = new FailingCompletableFutureFunction());
3463	<	f.complete(one);
3464	<	checkCompletedWithWrappedCFException(g);
3461	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3462	>	fs.add(incomplete.thenRunAsync(() -> {}, e));
3463	>	fs.add(incomplete.thenAcceptAsync(z -> {}, e));
3464	>	fs.add(incomplete.thenApplyAsync(z -> z, e));
3465
3466	<	f = new CompletableFuture<>();
3467	<	f.complete(one);
3468	<	g = f.thenComposeAsync(r = new FailingCompletableFutureFunction());
2065	<	checkCompletedWithWrappedCFException(g);
2066	<	}
3466	>	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3467	>	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3468	>	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3469
3470	<	/**
3471	<	* thenComposeAsync result completes exceptionally if source cancelled
3472	<	*/
2071	<	public void testThenComposeAsync4() {
2072	<	CompletableFuture<Integer> f, g;
2073	<	CompletableFutureInc r;
3470	>	fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e));
3471	>	fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e));
3472	>	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3473
3474	<	f = new CompletableFuture<>();
3475	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
3476	<	assertTrue(f.cancel(true));
2078	<	checkCompletedWithWrappedCancellationException(g);
2079	<
2080	<	f = new CompletableFuture<>();
2081	<	assertTrue(f.cancel(true));
2082	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2083	<	checkCompletedWithWrappedCancellationException(g);
2084	<	}
2085	<
2086	<	// async with explicit executors
3474	>	fs.add(incomplete.thenComposeAsync(z -> null, e));
3475	>	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3476	>	fs.add(incomplete.handleAsync((z, t) -> null, e));
3477
3478	<	/**
3479	<	* thenRunAsync result completes normally after normal completion of source
2090	<	*/
2091	<	public void testThenRunAsyncE() {
2092	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2093	<	Noop r = new Noop();
2094	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2095	<	f.complete(null);
2096	<	checkCompletedNormally(g, null);
3478	>	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3479	>	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3480
3481	<	// reordered version
3482	<	f = new CompletableFuture<>();
2100	<	f.complete(null);
2101	<	r = new Noop();
2102	<	g = f.thenRunAsync(r, new ThreadExecutor());
2103	<	checkCompletedNormally(g, null);
2104	<	}
3481	>	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3482	>	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3483
3484	<	/**
3485	<	* thenRunAsync result completes exceptionally after exceptional
2108	<	* completion of source
2109	<	*/
2110	<	public void testThenRunAsync2E() {
2111	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2112	<	Noop r = new Noop();
2113	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2114	<	f.completeExceptionally(new CFException());
2115	<	try {
2116	<	g.join();
2117	<	shouldThrow();
2118	<	} catch (Exception ok) {
2119	<	}
2120	<	checkCompletedWithWrappedCFException(g);
2121	<	}
3484	>	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3485	>	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3486
3487	<	/**
3488	<	* thenRunAsync result completes exceptionally if action does
2125	<	*/
2126	<	public void testThenRunAsync3E() {
2127	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2128	<	FailingNoop r = new FailingNoop();
2129	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2130	<	f.complete(null);
2131	<	checkCompletedWithWrappedCFException(g);
2132	<	}
3487	>	for (CompletableFuture<?> future : fs)
3488	>	checkIncomplete(future);
3489
3490	<	/**
3491	<	* thenRunAsync result completes exceptionally if source cancelled
2136	<	*/
2137	<	public void testThenRunAsync4E() {
2138	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2139	<	Noop r = new Noop();
2140	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2141	<	assertTrue(f.cancel(true));
2142	<	checkCompletedWithWrappedCancellationException(g);
2143	<	}
3490	>	for (CompletableFuture<?> future : fs)
3491	>	future.complete(null);
3492
3493	<	/**
2146	<	* thenApplyAsync result completes normally after normal completion of source
2147	<	*/
2148	<	public void testThenApplyAsyncE() {
2149	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2150	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
2151	<	f.complete(one);
2152	<	checkCompletedNormally(g, two);
2153	<	}
3493	>	incomplete.complete(v);
3494
3495	<	/**
3496	<	* thenApplyAsync result completes exceptionally after exceptional
2157	<	* completion of source
2158	<	*/
2159	<	public void testThenApplyAsync2E() {
2160	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2161	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
2162	<	f.completeExceptionally(new CFException());
2163	<	checkCompletedWithWrappedCFException(g);
2164	<	}
3495	>	for (CompletableFuture<?> future : fs)
3496	>	checkCompletedNormally(future, null);
3497
3498	<	/**
3499	<	* thenApplyAsync result completes exceptionally if action does
2168	<	*/
2169	<	public void testThenApplyAsync3E() {
2170	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2171	<	FailingFunction r = new FailingFunction();
2172	<	CompletableFuture<Integer> g = f.thenApplyAsync(r, new ThreadExecutor());
2173	<	f.complete(null);
2174	<	checkCompletedWithWrappedCFException(g);
2175	<	}
3498	>	assertEquals(0, e.count.get());
3499	>	}}
3500
3501		/**
3502	<	* thenApplyAsync result completes exceptionally if source cancelled
3502	>	* toCompletableFuture returns this CompletableFuture.
3503		*/
3504	<	public void testThenApplyAsync4E() {
3504	>	public void testToCompletableFuture() {
3505		CompletableFuture<Integer> f = new CompletableFuture<>();
3506	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
2183	<	assertTrue(f.cancel(true));
2184	<	checkCompletedWithWrappedCancellationException(g);
3506	>	assertSame(f, f.toCompletableFuture());
3507		}
3508
3509	<	/**
2188	<	* thenAcceptAsync result completes normally after normal
2189	<	* completion of source
2190	<	*/
2191	<	public void testThenAcceptAsyncE() {
2192	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2193	<	IncAction r = new IncAction();
2194	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
2195	<	f.complete(one);
2196	<	checkCompletedNormally(g, null);
2197	<	assertEquals(r.value, 2);
2198	<	}
3509	>	// jdk9
3510
3511		/**
3512	<	* thenAcceptAsync result completes exceptionally after exceptional
2202	<	* completion of source
3512	>	* newIncompleteFuture returns an incomplete CompletableFuture
3513		*/
3514	<	public void testThenAcceptAsync2E() {
3514	>	public void testNewIncompleteFuture() {
3515	>	for (Integer v1 : new Integer[] { 1, null })
3516	>	{
3517		CompletableFuture<Integer> f = new CompletableFuture<>();
3518	<	IncAction r = new IncAction();
3519	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3520	<	f.completeExceptionally(new CFException());
3521	<	checkCompletedWithWrappedCFException(g);
3522	<	}
3518	>	CompletableFuture<Integer> g = f.newIncompleteFuture();
3519	>	checkIncomplete(f);
3520	>	checkIncomplete(g);
3521	>	f.complete(v1);
3522	>	checkCompletedNormally(f, v1);
3523	>	checkIncomplete(g);
3524	>	g.complete(v1);
3525	>	checkCompletedNormally(g, v1);
3526	>	assertSame(g.getClass(), CompletableFuture.class);
3527	>	}}
3528
3529		/**
3530	<	* thenAcceptAsync result completes exceptionally if action does
3530	>	* completedStage returns a completed CompletionStage
3531		*/
3532	<	public void testThenAcceptAsync3E() {
3533	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3534	<	FailingConsumer r = new FailingConsumer();
3535	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3536	<	f.complete(null);
3537	<	checkCompletedWithWrappedCFException(g);
3532	>	public void testCompletedStage() {
3533	>	AtomicInteger x = new AtomicInteger(0);
3534	>	AtomicReference<Throwable> r = new AtomicReference<>();
3535	>	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3536	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3537	>	assertEquals(x.get(), 1);
3538	>	assertNull(r.get());
3539		}
3540
3541		/**
3542	<	* thenAcceptAsync result completes exceptionally if source cancelled
3542	>	* defaultExecutor by default returns the commonPool if
3543	>	* it supports more than one thread.
3544		*/
3545	<	public void testThenAcceptAsync4E() {
3545	>	public void testDefaultExecutor() {
3546		CompletableFuture<Integer> f = new CompletableFuture<>();
3547	<	IncAction r = new IncAction();
3548	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3549	<	assertTrue(f.cancel(true));
3550	<	checkCompletedWithWrappedCancellationException(g);
3547	>	Executor e = f.defaultExecutor();
3548	>	Executor c = ForkJoinPool.commonPool();
3549	>	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3550	>	assertSame(e, c);
3551	>	else
3552	>	assertNotSame(e, c);
3553		}
3554
3555		/**
3556	<	* thenCombineAsync result completes normally after normal
3557	<	* completion of sources
3556	>	* failedFuture returns a CompletableFuture completed
3557	>	* exceptionally with the given Exception
3558		*/
3559	<	public void testThenCombineAsyncE() {
3560	<	CompletableFuture<Integer> f, g, h;
3561	<	ThreadExecutor e = new ThreadExecutor();
3562	<	int count = 0;
2242	<
2243	<	f = new CompletableFuture<>();
2244	<	g = new CompletableFuture<>();
2245	<	h = f.thenCombineAsync(g, subtract, e);
2246	<	f.complete(3);
2247	<	checkIncomplete(h);
2248	<	g.complete(1);
2249	<	checkCompletedNormally(h, 2);
2250	<	assertEquals(++count, e.count.get());
2251	<
2252	<	f = new CompletableFuture<>();
2253	<	g = new CompletableFuture<>();
2254	<	h = f.thenCombineAsync(g, subtract, e);
2255	<	g.complete(1);
2256	<	checkIncomplete(h);
2257	<	f.complete(3);
2258	<	checkCompletedNormally(h, 2);
2259	<	assertEquals(++count, e.count.get());
2260	<
2261	<	f = new CompletableFuture<>();
2262	<	g = new CompletableFuture<>();
2263	<	g.complete(1);
2264	<	f.complete(3);
2265	<	h = f.thenCombineAsync(g, subtract, e);
2266	<	checkCompletedNormally(h, 2);
2267	<	assertEquals(++count, e.count.get());
3559	>	public void testFailedFuture() {
3560	>	CFException ex = new CFException();
3561	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3562	>	checkCompletedExceptionally(f, ex);
3563		}
3564
3565		/**
3566	<	* thenCombineAsync result completes exceptionally after exceptional
2272	<	* completion of either source
3566	>	* failedFuture(null) throws NPE
3567		*/
3568	<	public void testThenCombineAsync2E() {
3569	<	CompletableFuture<Integer> f, g, h;
3570	<	ThreadExecutor e = new ThreadExecutor();
3571	<	int count = 0;
3572	<
2279	<	f = new CompletableFuture<>();
2280	<	g = new CompletableFuture<>();
2281	<	h = f.thenCombineAsync(g, subtract, e);
2282	<	f.completeExceptionally(new CFException());
2283	<	checkIncomplete(h);
2284	<	g.complete(1);
2285	<	checkCompletedWithWrappedCFException(h);
2286	<
2287	<	f = new CompletableFuture<>();
2288	<	g = new CompletableFuture<>();
2289	<	h = f.thenCombineAsync(g, subtract, e);
2290	<	g.completeExceptionally(new CFException());
2291	<	checkIncomplete(h);
2292	<	f.complete(3);
2293	<	checkCompletedWithWrappedCFException(h);
2294	<
2295	<	f = new CompletableFuture<>();
2296	<	g = new CompletableFuture<>();
2297	<	g.completeExceptionally(new CFException());
2298	<	h = f.thenCombineAsync(g, subtract, e);
2299	<	checkIncomplete(h);
2300	<	f.complete(3);
2301	<	checkCompletedWithWrappedCFException(h);
2302	<
2303	<	assertEquals(0, e.count.get());
3568	>	public void testFailedFuture_null() {
3569	>	try {
3570	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3571	>	shouldThrow();
3572	>	} catch (NullPointerException success) {}
3573		}
3574
3575		/**
3576	<	* thenCombineAsync result completes exceptionally if action does
3576	>	* copy returns a CompletableFuture that is completed normally,
3577	>	* with the same value, when source is.
3578		*/
3579	<	public void testThenCombineAsync3E() {
3579	>	public void testCopy_normalCompletion() {
3580	>	for (boolean createIncomplete : new boolean[] { true, false })
3581	>	for (Integer v1 : new Integer[] { 1, null })
3582	>	{
3583		CompletableFuture<Integer> f = new CompletableFuture<>();
3584	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3585	<	FailingBiFunction r = new FailingBiFunction();
3586	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, r, new ThreadExecutor());
3587	<	f.complete(one);
3588	<	checkIncomplete(g);
3589	<	assertFalse(r.ran);
3590	<	f2.complete(two);
3591	<	checkCompletedWithWrappedCFException(g);
3592	<	assertTrue(r.ran);
3593	<	}
3594	<
3595	<	/**
3596	<	* thenCombineAsync result completes exceptionally if either source cancelled
3597	<	*/
3598	<	public void testThenCombineAsync4E() {
3599	<	CompletableFuture<Integer> f, g, h;
3600	<	ThreadExecutor e = new ThreadExecutor();
3601	<
3602	<	f = new CompletableFuture<>();
3603	<	g = new CompletableFuture<>();
3604	<	h = f.thenCombineAsync(g, subtract, e);
3605	<	assertTrue(f.cancel(true));
3606	<	checkIncomplete(h);
3607	<	g.complete(1);
3608	<	checkCompletedWithWrappedCancellationException(h);
3609	<
3610	<	f = new CompletableFuture<>();
3611	<	g = new CompletableFuture<>();
3612	<	h = f.thenCombineAsync(g, subtract, e);
3613	<	assertTrue(g.cancel(true));
2341	<	checkIncomplete(h);
2342	<	f.complete(3);
2343	<	checkCompletedWithWrappedCancellationException(h);
2344	<
2345	<	f = new CompletableFuture<>();
2346	<	g = new CompletableFuture<>();
2347	<	assertTrue(g.cancel(true));
2348	<	h = f.thenCombineAsync(g, subtract, e);
2349	<	checkIncomplete(h);
2350	<	f.complete(3);
2351	<	checkCompletedWithWrappedCancellationException(h);
2352	<
2353	<	f = new CompletableFuture<>();
2354	<	g = new CompletableFuture<>();
2355	<	assertTrue(f.cancel(true));
2356	<	assertTrue(g.cancel(true));
2357	<	h = f.thenCombineAsync(g, subtract, e);
2358	<	checkCompletedWithWrappedCancellationException(h);
2359	<
2360	<	assertEquals(0, e.count.get());
2361	<	}
2362	<
2363	<	/**
2364	<	* thenAcceptBothAsync result completes normally after normal
2365	<	* completion of sources
2366	<	*/
2367	<	public void testThenAcceptBothAsyncE() {
2368	<	CompletableFuture<Integer> f, g;
2369	<	CompletableFuture<Void> h;
2370	<	SubtractAction r;
2371	<	ThreadExecutor e = new ThreadExecutor();
2372	<
2373	<	f = new CompletableFuture<>();
2374	<	g = new CompletableFuture<>();
2375	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2376	<	f.complete(3);
2377	<	checkIncomplete(h);
2378	<	g.complete(1);
2379	<	checkCompletedNormally(h, null);
2380	<	assertEquals(r.value, 2);
2381	<
2382	<	f = new CompletableFuture<>();
2383	<	g = new CompletableFuture<>();
2384	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2385	<	g.complete(1);
2386	<	checkIncomplete(h);
2387	<	f.complete(3);
2388	<	checkCompletedNormally(h, null);
2389	<	assertEquals(r.value, 2);
2390	<
2391	<	f = new CompletableFuture<>();
2392	<	g = new CompletableFuture<>();
2393	<	g.complete(1);
2394	<	f.complete(3);
2395	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2396	<	checkCompletedNormally(h, null);
2397	<	assertEquals(r.value, 2);
2398	<
2399	<	assertEquals(3, e.count.get());
2400	<	}
2401	<
2402	<	/**
2403	<	* thenAcceptBothAsync result completes exceptionally after exceptional
2404	<	* completion of source
2405	<	*/
2406	<	public void testThenAcceptBothAsync2E() {
2407	<	CompletableFuture<Integer> f, g;
2408	<	CompletableFuture<Void> h;
2409	<	SubtractAction r;
2410	<	ThreadExecutor e = new ThreadExecutor();
2411	<
2412	<	f = new CompletableFuture<>();
2413	<	g = new CompletableFuture<>();
2414	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2415	<	f.completeExceptionally(new CFException());
2416	<	checkIncomplete(h);
2417	<	g.complete(1);
2418	<	checkCompletedWithWrappedCFException(h);
2419	<
2420	<	f = new CompletableFuture<>();
2421	<	g = new CompletableFuture<>();
2422	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2423	<	g.completeExceptionally(new CFException());
2424	<	checkIncomplete(h);
2425	<	f.complete(3);
2426	<	checkCompletedWithWrappedCFException(h);
2427	<
2428	<	f = new CompletableFuture<>();
2429	<	g = new CompletableFuture<>();
2430	<	f.complete(3);
2431	<	g.completeExceptionally(new CFException());
2432	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2433	<	checkCompletedWithWrappedCFException(h);
2434	<
2435	<	f = new CompletableFuture<>();
2436	<	g = new CompletableFuture<>();
2437	<	f.completeExceptionally(new CFException());
2438	<	g.complete(3);
2439	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2440	<	checkCompletedWithWrappedCFException(h);
2441	<
2442	<	assertEquals(0, e.count.get());
2443	<	}
2444	<
2445	<	/**
2446	<	* thenAcceptBothAsync result completes exceptionally if action does
2447	<	*/
2448	<	public void testThenAcceptBothAsync3E() {
2449	<	CompletableFuture<Integer> f, g;
2450	<	CompletableFuture<Void> h;
2451	<	FailingBiConsumer r;
2452	<	ThreadExecutor e = new ThreadExecutor();
2453	<
2454	<	f = new CompletableFuture<>();
2455	<	g = new CompletableFuture<>();
2456	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer(), e);
2457	<	f.complete(3);
2458	<	checkIncomplete(h);
2459	<	g.complete(1);
2460	<	checkCompletedWithWrappedCFException(h);
2461	<
2462	<	f = new CompletableFuture<>();
2463	<	g = new CompletableFuture<>();
2464	<	f.complete(3);
2465	<	g.complete(1);
2466	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer(), e);
2467	<	checkCompletedWithWrappedCFException(h);
2468	<
2469	<	assertEquals(2, e.count.get());
2470	<	}
2471	<
2472	<	/**
2473	<	* thenAcceptBothAsync result completes exceptionally if either source cancelled
2474	<	*/
2475	<	public void testThenAcceptBothAsync4E() {
2476	<	CompletableFuture<Integer> f, g;
2477	<	CompletableFuture<Void> h;
2478	<	SubtractAction r;
2479	<	ThreadExecutor e = new ThreadExecutor();
2480	<
2481	<	f = new CompletableFuture<>();
2482	<	g = new CompletableFuture<>();
2483	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2484	<	assertTrue(f.cancel(true));
2485	<	checkIncomplete(h);
2486	<	g.complete(1);
2487	<	checkCompletedWithWrappedCancellationException(h);
2488	<
2489	<	f = new CompletableFuture<>();
2490	<	g = new CompletableFuture<>();
2491	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2492	<	assertTrue(g.cancel(true));
2493	<	checkIncomplete(h);
2494	<	f.complete(3);
2495	<	checkCompletedWithWrappedCancellationException(h);
2496	<
2497	<	f = new CompletableFuture<>();
2498	<	g = new CompletableFuture<>();
2499	<	f.complete(3);
2500	<	assertTrue(g.cancel(true));
2501	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2502	<	checkCompletedWithWrappedCancellationException(h);
2503	<
2504	<	f = new CompletableFuture<>();
2505	<	g = new CompletableFuture<>();
2506	<	assertTrue(f.cancel(true));
2507	<	g.complete(3);
2508	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2509	<	checkCompletedWithWrappedCancellationException(h);
2510	<
2511	<	assertEquals(0, e.count.get());
2512	<	}
3584	>	if (!createIncomplete) assertTrue(f.complete(v1));
3585	>	CompletableFuture<Integer> g = f.copy();
3586	>	if (createIncomplete) {
3587	>	checkIncomplete(f);
3588	>	checkIncomplete(g);
3589	>	assertTrue(f.complete(v1));
3590	>	}
3591	>	checkCompletedNormally(f, v1);
3592	>	checkCompletedNormally(g, v1);
3593	>	}}
3594	>
3595	>	/**
3596	>	* copy returns a CompletableFuture that is completed exceptionally
3597	>	* when source is.
3598	>	*/
3599	>	public void testCopy_exceptionalCompletion() {
3600	>	for (boolean createIncomplete : new boolean[] { true, false })
3601	>	{
3602	>	CFException ex = new CFException();
3603	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3604	>	if (!createIncomplete) f.completeExceptionally(ex);
3605	>	CompletableFuture<Integer> g = f.copy();
3606	>	if (createIncomplete) {
3607	>	checkIncomplete(f);
3608	>	checkIncomplete(g);
3609	>	f.completeExceptionally(ex);
3610	>	}
3611	>	checkCompletedExceptionally(f, ex);
3612	>	checkCompletedWithWrappedException(g, ex);
3613	>	}}
3614
3615		/**
3616	<	* runAfterBothAsync result completes normally after normal
2516	<	* completion of sources
3616	>	* Completion of a copy does not complete its source.
3617		*/
3618	<	public void testRunAfterBothAsyncE() {
3618	>	public void testCopy_oneWayPropagation() {
3619		CompletableFuture<Integer> f = new CompletableFuture<>();
3620	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3621	<	Noop r = new Noop();
3622	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
3623	<	f.complete(one);
3624	<	checkIncomplete(g);
3625	<	f2.complete(two);
2526	<	checkCompletedNormally(g, null);
2527	<	assertTrue(r.ran);
3620	>	assertTrue(f.copy().complete(1));
3621	>	assertTrue(f.copy().complete(null));
3622	>	assertTrue(f.copy().cancel(true));
3623	>	assertTrue(f.copy().cancel(false));
3624	>	assertTrue(f.copy().completeExceptionally(new CFException()));
3625	>	checkIncomplete(f);
3626		}
3627
3628		/**
3629	<	* runAfterBothAsync result completes exceptionally after exceptional
3630	<	* completion of source
3629	>	* minimalCompletionStage returns a CompletableFuture that is
3630	>	* completed normally, with the same value, when source is.
3631		*/
3632	<	public void testRunAfterBothAsync2E() {
3632	>	public void testMinimalCompletionStage() {
3633		CompletableFuture<Integer> f = new CompletableFuture<>();
3634	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3635	<	Noop r = new Noop();
3636	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
3637	<	f.completeExceptionally(new CFException());
3638	<	f2.complete(two);
3639	<	checkCompletedWithWrappedCFException(g);
3640	<
3641	<	r = new Noop();
3642	<	f = new CompletableFuture<>();
2545	<	f2 = new CompletableFuture<>();
2546	<	g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2547	<	f.complete(one);
2548	<	f2.completeExceptionally(new CFException());
2549	<	checkCompletedWithWrappedCFException(g);
3634	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3635	>	AtomicInteger x = new AtomicInteger(0);
3636	>	AtomicReference<Throwable> r = new AtomicReference<>();
3637	>	checkIncomplete(f);
3638	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3639	>	f.complete(1);
3640	>	checkCompletedNormally(f, 1);
3641	>	assertEquals(x.get(), 1);
3642	>	assertNull(r.get());
3643		}
3644
3645		/**
3646	<	* runAfterBothAsync result completes exceptionally if action does
3646	>	* minimalCompletionStage returns a CompletableFuture that is
3647	>	* completed exceptionally when source is.
3648		*/
3649	<	public void testRunAfterBothAsync3E() {
3649	>	public void testMinimalCompletionStage2() {
3650		CompletableFuture<Integer> f = new CompletableFuture<>();
3651	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3652	<	FailingNoop r = new FailingNoop();
3653	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
3654	<	f.complete(one);
3655	<	checkIncomplete(g);
3656	<	f2.complete(two);
3657	<	checkCompletedWithWrappedCFException(g);
3651	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3652	>	AtomicInteger x = new AtomicInteger(0);
3653	>	AtomicReference<Throwable> r = new AtomicReference<>();
3654	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3655	>	checkIncomplete(f);
3656	>	CFException ex = new CFException();
3657	>	f.completeExceptionally(ex);
3658	>	checkCompletedExceptionally(f, ex);
3659	>	assertEquals(x.get(), 0);
3660	>	assertEquals(r.get().getCause(), ex);
3661		}
3662
3663		/**
3664	<	* runAfterBothAsync result completes exceptionally if either source cancelled
3664	>	* failedStage returns a CompletionStage completed
3665	>	* exceptionally with the given Exception
3666		*/
3667	<	public void testRunAfterBothAsync4E() {
3668	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3669	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3670	<	Noop r = new Noop();
3671	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
3672	<	assertTrue(f.cancel(true));
3673	<	f2.complete(two);
3674	<	checkCompletedWithWrappedCancellationException(g);
2577	<
2578	<	r = new Noop();
2579	<	f = new CompletableFuture<>();
2580	<	f2 = new CompletableFuture<>();
2581	<	g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2582	<	f.complete(one);
2583	<	assertTrue(f2.cancel(true));
2584	<	checkCompletedWithWrappedCancellationException(g);
3667	>	public void testFailedStage() {
3668	>	CFException ex = new CFException();
3669	>	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3670	>	AtomicInteger x = new AtomicInteger(0);
3671	>	AtomicReference<Throwable> r = new AtomicReference<>();
3672	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3673	>	assertEquals(x.get(), 0);
3674	>	assertEquals(r.get(), ex);
3675		}
3676
3677		/**
3678	<	* applyToEitherAsync result completes normally after normal
2589	<	* completion of sources
3678	>	* completeAsync completes with value of given supplier
3679		*/
3680	<	public void testApplyToEitherAsyncE() {
3680	>	public void testCompleteAsync() {
3681	>	for (Integer v1 : new Integer[] { 1, null })
3682	>	{
3683		CompletableFuture<Integer> f = new CompletableFuture<>();
3684	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3685	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
3686	<	f.complete(one);
3687	<	checkCompletedNormally(g, two);
2597	<
2598	<	f = new CompletableFuture<>();
2599	<	f.complete(one);
2600	<	f2 = new CompletableFuture<>();
2601	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2602	<	checkCompletedNormally(g, two);
2603	<	}
3684	>	f.completeAsync(() -> v1);
3685	>	f.join();
3686	>	checkCompletedNormally(f, v1);
3687	>	}}
3688
3689		/**
3690	<	* applyToEitherAsync result completes exceptionally after exceptional
2607	<	* completion of source
3690	>	* completeAsync completes exceptionally if given supplier throws
3691		*/
3692	<	public void testApplyToEitherAsync2E() {
3692	>	public void testCompleteAsync2() {
3693		CompletableFuture<Integer> f = new CompletableFuture<>();
3694	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3695	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
3696	<	f.completeExceptionally(new CFException());
3697	<	checkCompletedWithWrappedCFException(g);
3698	<
3699	<	f = new CompletableFuture<>();
3700	<	f2 = new CompletableFuture<>();
2618	<	f2.completeExceptionally(new CFException());
2619	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2620	<	f.complete(one);
2621	<	checkCompletedWithWrappedCFException(g);
3694	>	CFException ex = new CFException();
3695	>	f.completeAsync(() -> { throw ex; });
3696	>	try {
3697	>	f.join();
3698	>	shouldThrow();
3699	>	} catch (CompletionException success) {}
3700	>	checkCompletedWithWrappedException(f, ex);
3701		}
3702
3703		/**
3704	<	* applyToEitherAsync result completes exceptionally if action does
3704	>	* completeAsync with given executor completes with value of given supplier
3705		*/
3706	<	public void testApplyToEitherAsync3E() {
3706	>	public void testCompleteAsync3() {
3707	>	for (Integer v1 : new Integer[] { 1, null })
3708	>	{
3709		CompletableFuture<Integer> f = new CompletableFuture<>();
3710	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3711	<	FailingFunction r = new FailingFunction();
3712	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r, new ThreadExecutor());
3713	<	f.complete(one);
3714	<	checkCompletedWithWrappedCFException(g);
3715	<	}
3710	>	ThreadExecutor executor = new ThreadExecutor();
3711	>	f.completeAsync(() -> v1, executor);
3712	>	assertSame(v1, f.join());
3713	>	checkCompletedNormally(f, v1);
3714	>	assertEquals(1, executor.count.get());
3715	>	}}
3716
3717		/**
3718	<	* applyToEitherAsync result completes exceptionally if either source cancelled
3718	>	* completeAsync with given executor completes exceptionally if
3719	>	* given supplier throws
3720		*/
3721	<	public void testApplyToEitherAsync4E() {
3721	>	public void testCompleteAsync4() {
3722		CompletableFuture<Integer> f = new CompletableFuture<>();
3723	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3724	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
3725	<	assertTrue(f.cancel(true));
3726	<	checkCompletedWithWrappedCancellationException(g);
3727	<
3728	<	f = new CompletableFuture<>();
3729	<	f2 = new CompletableFuture<>();
3730	<	assertTrue(f2.cancel(true));
3731	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2650	<	checkCompletedWithWrappedCancellationException(g);
3723	>	CFException ex = new CFException();
3724	>	ThreadExecutor executor = new ThreadExecutor();
3725	>	f.completeAsync(() -> { throw ex; }, executor);
3726	>	try {
3727	>	f.join();
3728	>	shouldThrow();
3729	>	} catch (CompletionException success) {}
3730	>	checkCompletedWithWrappedException(f, ex);
3731	>	assertEquals(1, executor.count.get());
3732		}
3733
3734		/**
3735	<	* acceptEitherAsync result completes normally after normal
2655	<	* completion of sources
3735	>	* orTimeout completes with TimeoutException if not complete
3736		*/
3737	<	public void testAcceptEitherAsyncE() {
3737	>	public void testOrTimeout_timesOut() {
3738	>	long timeoutMillis = timeoutMillis();
3739		CompletableFuture<Integer> f = new CompletableFuture<>();
3740	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3741	<	IncAction r = new IncAction();
3742	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
3743	<	f.complete(one);
2663	<	checkCompletedNormally(g, null);
2664	<	assertEquals(r.value, 2);
2665	<
2666	<	r = new IncAction();
2667	<	f = new CompletableFuture<>();
2668	<	f.complete(one);
2669	<	f2 = new CompletableFuture<>();
2670	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2671	<	checkCompletedNormally(g, null);
2672	<	assertEquals(r.value, 2);
3740	>	long startTime = System.nanoTime();
3741	>	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3742	>	checkCompletedWithTimeoutException(f);
3743	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3744		}
3745
3746		/**
3747	<	* acceptEitherAsync result completes exceptionally after exceptional
2677	<	* completion of source
3747	>	* orTimeout completes normally if completed before timeout
3748		*/
3749	<	public void testAcceptEitherAsync2E() {
3749	>	public void testOrTimeout_completed() {
3750	>	for (Integer v1 : new Integer[] { 1, null })
3751	>	{
3752		CompletableFuture<Integer> f = new CompletableFuture<>();
3753	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3754	<	IncAction r = new IncAction();
3755	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
3756	<	f.completeExceptionally(new CFException());
3757	<	checkCompletedWithWrappedCFException(g);
3758	<
3759	<	r = new IncAction();
3760	<	f = new CompletableFuture<>();
3761	<	f2 = new CompletableFuture<>();
3762	<	f2.completeExceptionally(new CFException());
2691	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2692	<	f.complete(one);
2693	<	checkCompletedWithWrappedCFException(g);
2694	<	}
3753	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3754	>	long startTime = System.nanoTime();
3755	>	f.complete(v1);
3756	>	assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3757	>	assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3758	>	g.complete(v1);
3759	>	checkCompletedNormally(f, v1);
3760	>	checkCompletedNormally(g, v1);
3761	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3762	>	}}
3763
3764		/**
3765	<	* acceptEitherAsync result completes exceptionally if action does
3765	>	* completeOnTimeout completes with given value if not complete
3766		*/
3767	<	public void testAcceptEitherAsync3E() {
3768	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3769	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2702	<	FailingConsumer r = new FailingConsumer();
2703	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2704	<	f.complete(one);
2705	<	checkCompletedWithWrappedCFException(g);
3767	>	public void testCompleteOnTimeout_timesOut() {
3768	>	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3769	>	() -> testCompleteOnTimeout_timesOut(null));
3770		}
3771
3772		/**
3773	<	* acceptEitherAsync result completes exceptionally if either
2710	<	* source cancelled
3773	>	* completeOnTimeout completes with given value if not complete
3774		*/
3775	<	public void testAcceptEitherAsync4E() {
3775	>	public void testCompleteOnTimeout_timesOut(Integer v) {
3776	>	long timeoutMillis = timeoutMillis();
3777		CompletableFuture<Integer> f = new CompletableFuture<>();
3778	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3779	<	IncAction r = new IncAction();
3780	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
3781	<	assertTrue(f.cancel(true));
3782	<	checkCompletedWithWrappedCancellationException(g);
3783	<
2720	<	r = new IncAction();
2721	<	f = new CompletableFuture<>();
2722	<	f2 = new CompletableFuture<>();
2723	<	assertTrue(f2.cancel(true));
2724	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2725	<	checkCompletedWithWrappedCancellationException(g);
3778	>	long startTime = System.nanoTime();
3779	>	assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS));
3780	>	assertSame(v, f.join());
3781	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3782	>	f.complete(99);         // should have no effect
3783	>	checkCompletedNormally(f, v);
3784		}
3785
3786		/**
3787	<	* runAfterEitherAsync result completes normally after normal
2730	<	* completion of sources
3787	>	* completeOnTimeout has no effect if completed within timeout
3788		*/
3789	<	public void testRunAfterEitherAsyncE() {
3789	>	public void testCompleteOnTimeout_completed() {
3790	>	for (Integer v1 : new Integer[] { 1, null })
3791	>	{
3792		CompletableFuture<Integer> f = new CompletableFuture<>();
3793	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3794	<	Noop r = new Noop();
3795	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
3796	<	f.complete(one);
3797	<	checkCompletedNormally(g, null);
3798	<	assertTrue(r.ran);
3793	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3794	>	long startTime = System.nanoTime();
3795	>	f.complete(v1);
3796	>	assertSame(f, f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3797	>	assertSame(g, g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3798	>	g.complete(v1);
3799	>	checkCompletedNormally(f, v1);
3800	>	checkCompletedNormally(g, v1);
3801	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3802	>	}}
3803	>
3804	>	/**
3805	>	* delayedExecutor returns an executor that delays submission
3806	>	*/
3807	>	public void testDelayedExecutor() {
3808	>	testInParallel(() -> testDelayedExecutor(null, null),
3809	>	() -> testDelayedExecutor(null, 1),
3810	>	() -> testDelayedExecutor(new ThreadExecutor(), 1),
3811	>	() -> testDelayedExecutor(new ThreadExecutor(), 1));
3812	>	}
3813	>
3814	>	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
3815	>	long timeoutMillis = timeoutMillis();
3816	>	// Use an "unreasonably long" long timeout to catch lingering threads
3817	>	long longTimeoutMillis = 1000 * 60 * 60 * 24;
3818	>	final Executor delayer, longDelayer;
3819	>	if (executor == null) {
3820	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
3821	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
3822	>	} else {
3823	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
3824	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
3825	>	}
3826	>	long startTime = System.nanoTime();
3827	>	CompletableFuture<Integer> f =
3828	>	CompletableFuture.supplyAsync(() -> v, delayer);
3829	>	CompletableFuture<Integer> g =
3830	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
3831
3832	<	r = new Noop();
2742	<	f = new CompletableFuture<>();
2743	<	f.complete(one);
2744	<	f2 = new CompletableFuture<>();
2745	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2746	<	checkCompletedNormally(g, null);
2747	<	assertTrue(r.ran);
2748	<	}
3832	>	assertNull(g.getNow(null));
3833
3834	<	/**
3835	<	* runAfterEitherAsync result completes exceptionally after exceptional
3836	<	* completion of source
3837	<	*/
2754	<	public void testRunAfterEitherAsync2E() {
2755	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2756	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2757	<	Noop r = new Noop();
2758	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2759	<	f.completeExceptionally(new CFException());
2760	<	checkCompletedWithWrappedCFException(g);
3834	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
3835	>	long millisElapsed = millisElapsedSince(startTime);
3836	>	assertTrue(millisElapsed >= timeoutMillis);
3837	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
3838
3839	<	r = new Noop();
2763	<	f = new CompletableFuture<>();
2764	<	f2 = new CompletableFuture<>();
2765	<	f2.completeExceptionally(new CFException());
2766	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2767	<	f.complete(one);
2768	<	checkCompletedWithWrappedCFException(g);
2769	<	}
3839	>	checkCompletedNormally(f, v);
3840
3841	<	/**
3842	<	* runAfterEitherAsync result completes exceptionally if action does
2773	<	*/
2774	<	public void testRunAfterEitherAsync3E() {
2775	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2776	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2777	<	FailingNoop r = new FailingNoop();
2778	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2779	<	f.complete(one);
2780	<	checkCompletedWithWrappedCFException(g);
3841	>	checkIncomplete(g);
3842	>	assertTrue(g.cancel(true));
3843		}
3844
3845	<	/**
2784	<	* runAfterEitherAsync result completes exceptionally if either
2785	<	* source cancelled
2786	<	*/
2787	<	public void testRunAfterEitherAsync4E() {
2788	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2789	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2790	<	Noop r = new Noop();
2791	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2792	<	assertTrue(f.cancel(true));
2793	<	checkCompletedWithWrappedCancellationException(g);
3845	>	//--- tests of implementation details; not part of official tck ---
3846
3847	<	r = new Noop();
3848	<	f = new CompletableFuture<>();
3849	<	f2 = new CompletableFuture<>();
3850	<	assertTrue(f2.cancel(true));
3851	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
3852	<	checkCompletedWithWrappedCancellationException(g);
3853	<	}
3847	>	Object resultOf(CompletableFuture<?> f) {
3848	>	SecurityManager sm = System.getSecurityManager();
3849	>	if (sm != null) {
3850	>	try {
3851	>	System.setSecurityManager(null);
3852	>	} catch (SecurityException giveUp) {
3853	>	return "Reflection not available";
3854	>	}
3855	>	}
3856
3857	<	/**
3858	<	* thenComposeAsync result completes normally after normal
3859	<	* completion of source
3860	<	*/
3861	<	public void testThenComposeAsyncE() {
3862	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3863	<	CompletableFutureInc r = new CompletableFutureInc();
3864	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
3865	<	f.complete(one);
3866	<	checkCompletedNormally(g, two);
3857	>	try {
3858	>	java.lang.reflect.Field resultField
3859	>	= CompletableFuture.class.getDeclaredField("result");
3860	>	resultField.setAccessible(true);
3861	>	return resultField.get(f);
3862	>	} catch (Throwable t) {
3863	>	throw new AssertionError(t);
3864	>	} finally {
3865	>	if (sm != null) System.setSecurityManager(sm);
3866	>	}
3867		}
3868
3869	<	/**
3870	<	* thenComposeAsync result completes exceptionally after
3871	<	* exceptional completion of source
3872	<	*/
3873	<	public void testThenComposeAsync2E() {
3874	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3875	<	CompletableFutureInc r = new CompletableFutureInc();
3876	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
3877	<	f.completeExceptionally(new CFException());
3878	<	checkCompletedWithWrappedCFException(g);
3879	<	}
3869	>	public void testExceptionPropagationReusesResultObject() {
3870	>	if (!testImplementationDetails) return;
3871	>	for (ExecutionMode m : ExecutionMode.values())
3872	>	{
3873	>	final CFException ex = new CFException();
3874	>	final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
3875	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3876	>
3877	>	final Runnable noopRunnable = new Noop(m);
3878	>	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
3879	>	final Function<Integer, Integer> incFunction = new IncFunction(m);
3880	>
3881	>	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
3882	>	= new ArrayList<>();
3883	>
3884	>	funs.add(y -> m.thenRun(y, noopRunnable));
3885	>	funs.add(y -> m.thenAccept(y, noopConsumer));
3886	>	funs.add(y -> m.thenApply(y, incFunction));
3887	>
3888	>	funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable));
3889	>	funs.add(y -> m.acceptEither(y, incomplete, noopConsumer));
3890	>	funs.add(y -> m.applyToEither(y, incomplete, incFunction));
3891	>
3892	>	funs.add(y -> m.runAfterBoth(y, v42, noopRunnable));
3893	>	funs.add(y -> m.runAfterBoth(v42, y, noopRunnable));
3894	>	funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3895	>	funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
3896	>	funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m)));
3897	>	funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m)));
3898	>
3899	>	funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
3900	>
3901	>	funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m)));
3902	>
3903	>	funs.add(y -> CompletableFuture.allOf(y));
3904	>	funs.add(y -> CompletableFuture.allOf(y, v42));
3905	>	funs.add(y -> CompletableFuture.allOf(v42, y));
3906	>	funs.add(y -> CompletableFuture.anyOf(y));
3907	>	funs.add(y -> CompletableFuture.anyOf(y, incomplete));
3908	>	funs.add(y -> CompletableFuture.anyOf(incomplete, y));
3909
3910	<	/**
3911	<	* thenComposeAsync result completes exceptionally if action does
3912	<	*/
3913	<	public void testThenComposeAsync3E() {
3914	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3915	<	FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
3916	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
3917	<	f.complete(one);
3918	<	checkCompletedWithWrappedCFException(g);
3919	<	}
3910	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3911	>	fun : funs) {
3912	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3913	>	f.completeExceptionally(ex);
3914	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3915	>	checkCompletedWithWrappedException(src, ex);
3916	>	CompletableFuture<?> dep = fun.apply(src);
3917	>	checkCompletedWithWrappedException(dep, ex);
3918	>	assertSame(resultOf(src), resultOf(dep));
3919	>	}
3920
3921	<	/**
3922	<	* thenComposeAsync result completes exceptionally if source cancelled
3923	<	*/
3924	<	public void testThenComposeAsync4E() {
3925	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3926	<	CompletableFutureInc r = new CompletableFutureInc();
3927	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
3928	<	assertTrue(f.cancel(true));
3929	<	checkCompletedWithWrappedCancellationException(g);
3930	<	}
3921	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3922	>	fun : funs) {
3923	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3924	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3925	>	CompletableFuture<?> dep = fun.apply(src);
3926	>	f.completeExceptionally(ex);
3927	>	checkCompletedWithWrappedException(src, ex);
3928	>	checkCompletedWithWrappedException(dep, ex);
3929	>	assertSame(resultOf(src), resultOf(dep));
3930	>	}
3931
3932	<	// other static methods
3932	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3933	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3934	>	fun : funs) {
3935	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3936	>	f.cancel(mayInterruptIfRunning);
3937	>	checkCancelled(f);
3938	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3939	>	checkCompletedWithWrappedCancellationException(src);
3940	>	CompletableFuture<?> dep = fun.apply(src);
3941	>	checkCompletedWithWrappedCancellationException(dep);
3942	>	assertSame(resultOf(src), resultOf(dep));
3943	>	}
3944
3945	<	/**
3946	<	* allOf(no component futures) returns a future completed normally
3947	<	* with the value null
3948	<	*/
3949	<	public void testAllOf_empty() throws Exception {
3950	<	CompletableFuture<Void> f = CompletableFuture.allOf();
3951	<	checkCompletedNormally(f, null);
3952	<	}
3945	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3946	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3947	>	fun : funs) {
3948	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3949	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3950	>	CompletableFuture<?> dep = fun.apply(src);
3951	>	f.cancel(mayInterruptIfRunning);
3952	>	checkCancelled(f);
3953	>	checkCompletedWithWrappedCancellationException(src);
3954	>	checkCompletedWithWrappedCancellationException(dep);
3955	>	assertSame(resultOf(src), resultOf(dep));
3956	>	}
3957	>	}}
3958
3959		/**
3960	<	* allOf returns a future completed normally with the value null
2862	<	* when all components complete normally
3960	>	* Minimal completion stages throw UOE for most non-CompletionStage methods
3961		*/
3962	<	public void testAllOf_normal() throws Exception {
3963	<	for (int k = 1; k < 20; ++k) {
3964	<	CompletableFuture<Integer>[] fs = (CompletableFuture<Integer>[]) new CompletableFuture[k];
3965	<	for (int i = 0; i < k; ++i)
3966	<	fs[i] = new CompletableFuture<>();
3967	<	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3968	<	for (int i = 0; i < k; ++i) {
3969	<	checkIncomplete(f);
3970	<	checkIncomplete(CompletableFuture.allOf(fs));
3971	<	fs[i].complete(one);
3962	>	public void testMinimalCompletionStage_minimality() {
3963	>	if (!testImplementationDetails) return;
3964	>	Function<Method, String> toSignature =
3965	>	method -> method.getName() + Arrays.toString(method.getParameterTypes());
3966	>	Predicate<Method> isNotStatic =
3967	>	method -> (method.getModifiers() & Modifier.STATIC) == 0;
3968	>	List<Method> minimalMethods =
3969	>	Stream.of(Object.class, CompletionStage.class)
3970	>	.flatMap(klazz -> Stream.of(klazz.getMethods()))
3971	>	.filter(isNotStatic)
3972	>	.collect(Collectors.toList());
3973	>	// Methods from CompletableFuture permitted NOT to throw UOE
3974	>	String[] signatureWhitelist = {
3975	>	"newIncompleteFuture[]",
3976	>	"defaultExecutor[]",
3977	>	"minimalCompletionStage[]",
3978	>	"copy[]",
3979	>	};
3980	>	Set<String> permittedMethodSignatures =
3981	>	Stream.concat(minimalMethods.stream().map(toSignature),
3982	>	Stream.of(signatureWhitelist))
3983	>	.collect(Collectors.toSet());
3984	>	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
3985	>	.filter(isNotStatic)
3986	>	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
3987	>	.collect(Collectors.toList());
3988	>
3989	>	List<CompletionStage<Integer>> stages = new ArrayList<>();
3990	>	CompletionStage<Integer> min =
3991	>	new CompletableFuture<Integer>().minimalCompletionStage();
3992	>	stages.add(min);
3993	>	stages.add(min.thenApply(x -> x));
3994	>	stages.add(CompletableFuture.completedStage(1));
3995	>	stages.add(CompletableFuture.failedStage(new CFException()));
3996	>
3997	>	List<Method> bugs = new ArrayList<>();
3998	>	for (Method method : allMethods) {
3999	>	Class<?>[] parameterTypes = method.getParameterTypes();
4000	>	Object[] args = new Object[parameterTypes.length];
4001	>	// Manufacture boxed primitives for primitive params
4002	>	for (int i = 0; i < args.length; i++) {
4003	>	Class<?> type = parameterTypes[i];
4004	>	if (parameterTypes[i] == boolean.class)
4005	>	args[i] = false;
4006	>	else if (parameterTypes[i] == int.class)
4007	>	args[i] = 0;
4008	>	else if (parameterTypes[i] == long.class)
4009	>	args[i] = 0L;
4010	>	}
4011	>	for (CompletionStage<Integer> stage : stages) {
4012	>	try {
4013	>	method.invoke(stage, args);
4014	>	bugs.add(method);
4015	>	}
4016	>	catch (java.lang.reflect.InvocationTargetException expected) {
4017	>	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4018	>	bugs.add(method);
4019	>	// expected.getCause().printStackTrace();
4020	>	}
4021	>	}
4022	>	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4023		}
2875	–	checkCompletedNormally(f, null);
2876	–	checkCompletedNormally(CompletableFuture.allOf(fs), null);
4024		}
4025	+	if (!bugs.isEmpty())
4026	+	throw new Error("Methods did not throw UOE: " + bugs);
4027		}
4028
4029		/**
4030	<	* anyOf(no component futures) returns an incomplete future
4031	<	*/
2883	<	public void testAnyOf_empty() throws Exception {
2884	<	CompletableFuture<Object> f = CompletableFuture.anyOf();
2885	<	checkIncomplete(f);
2886	<	}
2887	<
2888	<	/**
2889	<	* anyOf returns a future completed normally with a value when
2890	<	* a component future does
4030	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4031	>	* is completed normally, with the same value, when source is.
4032		*/
4033	<	public void testAnyOf_normal() throws Exception {
4034	<	for (int k = 0; k < 10; ++k) {
4035	<	CompletableFuture[] fs = new CompletableFuture[k];
4036	<	for (int i = 0; i < k; ++i)
4037	<	fs[i] = new CompletableFuture<>();
4038	<	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
4033	>	public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() {
4034	>	for (boolean createIncomplete : new boolean[] { true, false })
4035	>	for (Integer v1 : new Integer[] { 1, null })
4036	>	{
4037	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4038	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4039	>	if (!createIncomplete) assertTrue(f.complete(v1));
4040	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4041	>	if (createIncomplete) {
4042		checkIncomplete(f);
4043	<	for (int i = 0; i < k; ++i) {
4044	<	fs[i].complete(one);
2901	<	checkCompletedNormally(f, one);
2902	<	checkCompletedNormally(CompletableFuture.anyOf(fs), one);
2903	<	}
4043	>	checkIncomplete(g);
4044	>	assertTrue(f.complete(v1));
4045		}
4046	<	}
4047	<
4048	<	/**
4049	<	* anyOf result completes exceptionally when any component does.
4050	<	*/
4051	<	public void testAnyOf_exceptional() throws Exception {
4052	<	for (int k = 0; k < 10; ++k) {
4053	<	CompletableFuture[] fs = new CompletableFuture[k];
4054	<	for (int i = 0; i < k; ++i)
4055	<	fs[i] = new CompletableFuture<>();
4056	<	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
4046	>	checkCompletedNormally(f, v1);
4047	>	checkCompletedNormally(g, v1);
4048	>	}}
4049	>
4050	>	/**
4051	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4052	>	* is completed exceptionally when source is.
4053	>	*/
4054	>	public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() {
4055	>	for (boolean createIncomplete : new boolean[] { true, false })
4056	>	{
4057	>	CFException ex = new CFException();
4058	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4059	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4060	>	if (!createIncomplete) f.completeExceptionally(ex);
4061	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4062	>	if (createIncomplete) {
4063		checkIncomplete(f);
4064	<	for (int i = 0; i < k; ++i) {
4065	<	fs[i].completeExceptionally(new CFException());
2919	<	checkCompletedWithWrappedCFException(f);
2920	<	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
2921	<	}
4064	>	checkIncomplete(g);
4065	>	f.completeExceptionally(ex);
4066		}
4067	<	}
4067	>	checkCompletedExceptionally(f, ex);
4068	>	checkCompletedWithWrappedException(g, ex);
4069	>	}}
4070
4071		/**
4072	<	* Completion methods throw NullPointerException with null arguments
4072	>	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4073		*/
4074	<	public void testNPE() {
4074	>	public void testMinimalCompletionStage_toCompletableFuture_mutable() {
4075	>	for (Integer v1 : new Integer[] { 1, null })
4076	>	{
4077		CompletableFuture<Integer> f = new CompletableFuture<>();
4078	<	CompletableFuture<Integer> g = new CompletableFuture<>();
4079	<	CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
4080	<	CompletableFuture<?> h;
4081	<	ThreadExecutor exec = new ThreadExecutor();
4082	<
4083	<	Runnable[] throwingActions = {
4084	<	() -> { CompletableFuture.supplyAsync(null); },
2937	<	() -> { CompletableFuture.supplyAsync(null, exec); },
2938	<	() -> { CompletableFuture.supplyAsync(supplyOne, null); },
2939	<
2940	<	() -> { CompletableFuture.runAsync(null); },
2941	<	() -> { CompletableFuture.runAsync(null, exec); },
2942	<	() -> { CompletableFuture.runAsync(() -> {}, null); },
2943	<
2944	<	() -> { f.completeExceptionally(null); },
2945	<
2946	<	() -> { f.thenApply(null); },
2947	<	() -> { f.thenApplyAsync(null); },
2948	<	() -> { f.thenApplyAsync((x) -> x, null); },
2949	<	() -> { f.thenApplyAsync(null, exec); },
2950	<
2951	<	() -> { f.thenAccept(null); },
2952	<	() -> { f.thenAcceptAsync(null); },
2953	<	() -> { f.thenAcceptAsync((x) -> { ; }, null); },
2954	<	() -> { f.thenAcceptAsync(null, exec); },
2955	<
2956	<	() -> { f.thenRun(null); },
2957	<	() -> { f.thenRunAsync(null); },
2958	<	() -> { f.thenRunAsync(() -> { ; }, null); },
2959	<	() -> { f.thenRunAsync(null, exec); },
2960	<
2961	<	() -> { f.thenCombine(g, null); },
2962	<	() -> { f.thenCombineAsync(g, null); },
2963	<	() -> { f.thenCombineAsync(g, null, exec); },
2964	<	() -> { f.thenCombine(nullFuture, (x, y) -> x); },
2965	<	() -> { f.thenCombineAsync(nullFuture, (x, y) -> x); },
2966	<	() -> { f.thenCombineAsync(nullFuture, (x, y) -> x, exec); },
2967	<	() -> { f.thenCombineAsync(g, (x, y) -> x, null); },
2968	<
2969	<	() -> { f.thenAcceptBoth(g, null); },
2970	<	() -> { f.thenAcceptBothAsync(g, null); },
2971	<	() -> { f.thenAcceptBothAsync(g, null, exec); },
2972	<	() -> { f.thenAcceptBoth(nullFuture, (x, y) -> {}); },
2973	<	() -> { f.thenAcceptBothAsync(nullFuture, (x, y) -> {}); },
2974	<	() -> { f.thenAcceptBothAsync(nullFuture, (x, y) -> {}, exec); },
2975	<	() -> { f.thenAcceptBothAsync(g, (x, y) -> {}, null); },
2976	<
2977	<	() -> { f.runAfterBoth(g, null); },
2978	<	() -> { f.runAfterBothAsync(g, null); },
2979	<	() -> { f.runAfterBothAsync(g, null, exec); },
2980	<	() -> { f.runAfterBoth(nullFuture, () -> {}); },
2981	<	() -> { f.runAfterBothAsync(nullFuture, () -> {}); },
2982	<	() -> { f.runAfterBothAsync(nullFuture, () -> {}, exec); },
2983	<	() -> { f.runAfterBothAsync(g, () -> {}, null); },
2984	<
2985	<	() -> { f.applyToEither(g, null); },
2986	<	() -> { f.applyToEitherAsync(g, null); },
2987	<	() -> { f.applyToEitherAsync(g, null, exec); },
2988	<	() -> { f.applyToEither(nullFuture, (x) -> x); },
2989	<	() -> { f.applyToEitherAsync(nullFuture, (x) -> x); },
2990	<	() -> { f.applyToEitherAsync(nullFuture, (x) -> x, exec); },
2991	<	() -> { f.applyToEitherAsync(g, (x) -> x, null); },
2992	<
2993	<	() -> { f.acceptEither(g, null); },
2994	<	() -> { f.acceptEitherAsync(g, null); },
2995	<	() -> { f.acceptEitherAsync(g, null, exec); },
2996	<	() -> { f.acceptEither(nullFuture, (x) -> {}); },
2997	<	() -> { f.acceptEitherAsync(nullFuture, (x) -> {}); },
2998	<	() -> { f.acceptEitherAsync(nullFuture, (x) -> {}, exec); },
2999	<	() -> { f.acceptEitherAsync(g, (x) -> {}, null); },
3000	<
3001	<	() -> { f.runAfterEither(g, null); },
3002	<	() -> { f.runAfterEitherAsync(g, null); },
3003	<	() -> { f.runAfterEitherAsync(g, null, exec); },
3004	<	() -> { f.runAfterEither(nullFuture, () -> {}); },
3005	<	() -> { f.runAfterEitherAsync(nullFuture, () -> {}); },
3006	<	() -> { f.runAfterEitherAsync(nullFuture, () -> {}, exec); },
3007	<	() -> { f.runAfterEitherAsync(g, () -> {}, null); },
3008	<
3009	<	() -> { f.thenCompose(null); },
3010	<	() -> { f.thenComposeAsync(null); },
3011	<	() -> { f.thenComposeAsync(new CompletableFutureInc(), null); },
3012	<	() -> { f.thenComposeAsync(null, exec); },
3013	<
3014	<	() -> { f.exceptionally(null); },
3015	<
3016	<	() -> { f.handle(null); },
3017	<
3018	<	() -> { CompletableFuture.allOf((CompletableFuture<?>)null); },
3019	<	() -> { CompletableFuture.allOf((CompletableFuture<?>[])null); },
3020	<	() -> { CompletableFuture.allOf(f, null); },
3021	<	() -> { CompletableFuture.allOf(null, f); },
3022	<
3023	<	() -> { CompletableFuture.anyOf((CompletableFuture<?>)null); },
3024	<	() -> { CompletableFuture.anyOf((CompletableFuture<?>[])null); },
3025	<	() -> { CompletableFuture.anyOf(f, null); },
3026	<	() -> { CompletableFuture.anyOf(null, f); },
3027	<	};
3028	<
3029	<	assertThrows(NullPointerException.class, throwingActions);
3030	<	assertEquals(0, exec.count.get());
3031	<	}
4078	>	CompletionStage minimal = f.minimalCompletionStage();
4079	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4080	>	assertTrue(g.complete(v1));
4081	>	checkCompletedNormally(g, v1);
4082	>	checkIncomplete(f);
4083	>	checkIncomplete(minimal.toCompletableFuture());
4084	>	}}
4085
4086		/**
4087	<	* toCompletableFuture returns this CompletableFuture.
4087	>	* minimalStage.toCompletableFuture().join() awaits completion
4088		*/
4089	<	public void testToCompletableFuture() {
4090	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4091	<	assertSame(f, f.toCompletableFuture());
4089	>	public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception {
4090	>	for (boolean createIncomplete : new boolean[] { true, false })
4091	>	for (Integer v1 : new Integer[] { 1, null })
4092	>	{
4093	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4094	>	if (!createIncomplete) assertTrue(f.complete(v1));
4095	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4096	>	if (createIncomplete) assertTrue(f.complete(v1));
4097	>	assertEquals(v1, minimal.toCompletableFuture().join());
4098	>	assertEquals(v1, minimal.toCompletableFuture().get());
4099	>	checkCompletedNormally(minimal.toCompletableFuture(), v1);
4100	>	}}
4101	>
4102	>	/**
4103	>	* Completion of a toCompletableFuture copy of a minimal stage
4104	>	* does not complete its source.
4105	>	*/
4106	>	public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() {
4107	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4108	>	CompletionStage<Integer> g = f.minimalCompletionStage();
4109	>	assertTrue(g.toCompletableFuture().complete(1));
4110	>	assertTrue(g.toCompletableFuture().complete(null));
4111	>	assertTrue(g.toCompletableFuture().cancel(true));
4112	>	assertTrue(g.toCompletableFuture().cancel(false));
4113	>	assertTrue(g.toCompletableFuture().completeExceptionally(new CFException()));
4114	>	checkIncomplete(g.toCompletableFuture());
4115	>	f.complete(1);
4116	>	checkCompletedNormally(g.toCompletableFuture(), 1);
4117		}
4118
4119	<	/**
4120	<	* whenComplete action executes on normal completion, propagating
4121	<	* source result.
4122	<	*/
4123	<	public void testWhenComplete1() {
4124	<	final AtomicInteger a = new AtomicInteger();
4125	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4126	<	CompletableFuture<Integer> g =
4127	<	f.whenComplete((Integer x, Throwable t) -> a.getAndIncrement());
3050	<	f.complete(three);
3051	<	checkCompletedNormally(f, three);
3052	<	checkCompletedNormally(g, three);
3053	<	assertEquals(a.get(), 1);
4119	>	/** Demo utility method for external reliable toCompletableFuture */
4120	>	static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) {
4121	>	CompletableFuture<T> f = new CompletableFuture<>();
4122	>	stage.handle((T t, Throwable ex) -> {
4123	>	if (ex != null) f.completeExceptionally(ex);
4124	>	else f.complete(t);
4125	>	return null;
4126	>	});
4127	>	return f;
4128		}
4129
4130	<	/**
4131	<	* whenComplete action executes on exceptional completion, propagating
4132	<	* source result.
3059	<	*/
3060	<	public void testWhenComplete2() {
3061	<	final AtomicInteger a = new AtomicInteger();
3062	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3063	<	CompletableFuture<Integer> g =
3064	<	f.whenComplete((Integer x, Throwable t) -> a.getAndIncrement());
3065	<	f.completeExceptionally(new CFException());
3066	<	assertTrue(f.isCompletedExceptionally());
3067	<	assertTrue(g.isCompletedExceptionally());
3068	<	assertEquals(a.get(), 1);
4130	>	/** Demo utility method to join a CompletionStage */
4131	>	static <T> T join(CompletionStage<T> stage) {
4132	>	return toCompletableFuture(stage).join();
4133		}
4134
4135		/**
4136	<	* If a whenComplete action throws an exception when triggered by
3073	<	* a normal completion, it completes exceptionally
4136	>	* Joining a minimal stage "by hand" works
4137		*/
4138	<	public void testWhenComplete3() {
4138	>	public void testMinimalCompletionStage_join_by_hand() {
4139	>	for (boolean createIncomplete : new boolean[] { true, false })
4140	>	for (Integer v1 : new Integer[] { 1, null })
4141	>	{
4142		CompletableFuture<Integer> f = new CompletableFuture<>();
4143	<	CompletableFuture<Integer> g =
4144	<	f.whenComplete((Integer x, Throwable t) ->
4145	<	{ throw new CFException(); } );
4146	<	f.complete(three);
4147	<	checkCompletedNormally(f, three);
4148	<	assertTrue(g.isCompletedExceptionally());
4149	<	checkCompletedWithWrappedCFException(g);
4150	<	}
4143	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4144	>	CompletableFuture<Integer> g = new CompletableFuture<>();
4145	>	if (!createIncomplete) assertTrue(f.complete(v1));
4146	>	minimal.thenAccept(x -> g.complete(x));
4147	>	if (createIncomplete) assertTrue(f.complete(v1));
4148	>	g.join();
4149	>	checkCompletedNormally(g, v1);
4150	>	checkCompletedNormally(f, v1);
4151	>	assertEquals(v1, join(minimal));
4152	>	}}
4153	>
4154	>	static class Monad {
4155	>	static class ZeroException extends RuntimeException {
4156	>	public ZeroException() { super("monadic zero"); }
4157	>	}
4158	>	// "return", "unit"
4159	>	static <T> CompletableFuture<T> unit(T value) {
4160	>	return completedFuture(value);
4161	>	}
4162	>	// monadic zero ?
4163	>	static <T> CompletableFuture<T> zero() {
4164	>	return failedFuture(new ZeroException());
4165	>	}
4166	>	// >=>
4167	>	static <T,U,V> Function<T, CompletableFuture<V>> compose
4168	>	(Function<T, CompletableFuture<U>> f,
4169	>	Function<U, CompletableFuture<V>> g) {
4170	>	return x -> f.apply(x).thenCompose(g);
4171	>	}
4172
4173	<	/**
4174	<	* whenCompleteAsync action executes on normal completion, propagating
4175	<	* source result.
4176	<	*/
4177	<	public void testWhenCompleteAsync1() {
4178	<	final AtomicInteger a = new AtomicInteger();
4179	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4180	<	CompletableFuture<Integer> g =
3094	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement());
3095	<	f.complete(three);
3096	<	checkCompletedNormally(f, three);
3097	<	checkCompletedNormally(g, three);
3098	<	assertEquals(a.get(), 1);
3099	<	}
4173	>	static void assertZero(CompletableFuture<?> f) {
4174	>	try {
4175	>	f.getNow(null);
4176	>	throw new AssertionFailedError("should throw");
4177	>	} catch (CompletionException success) {
4178	>	assertTrue(success.getCause() instanceof ZeroException);
4179	>	}
4180	>	}
4181
4182	<	/**
4183	<	* whenCompleteAsync action executes on exceptional completion, propagating
4184	<	* source result.
4185	<	*/
4186	<	public void testWhenCompleteAsync2() {
4187	<	final AtomicInteger a = new AtomicInteger();
4188	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4189	<	CompletableFuture<Integer> g =
4190	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement());
4191	<	f.completeExceptionally(new CFException());
4192	<	checkCompletedWithWrappedCFException(f);
4193	<	checkCompletedWithWrappedCFException(g);
4194	<	}
4182	>	static <T> void assertFutureEquals(CompletableFuture<T> f,
4183	>	CompletableFuture<T> g) {
4184	>	T fval = null, gval = null;
4185	>	Throwable fex = null, gex = null;
4186	>
4187	>	try { fval = f.get(); }
4188	>	catch (ExecutionException ex) { fex = ex.getCause(); }
4189	>	catch (Throwable ex) { fex = ex; }
4190	>
4191	>	try { gval = g.get(); }
4192	>	catch (ExecutionException ex) { gex = ex.getCause(); }
4193	>	catch (Throwable ex) { gex = ex; }
4194	>
4195	>	if (fex != null || gex != null)
4196	>	assertSame(fex.getClass(), gex.getClass());
4197	>	else
4198	>	assertEquals(fval, gval);
4199	>	}
4200
4201	<	/**
4202	<	* If a whenCompleteAsync action throws an exception when
4203	<	* triggered by a normal completion, it completes exceptionally
3118	<	*/
3119	<	public void testWhenCompleteAsync3() {
3120	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3121	<	CompletableFuture<Integer> g =
3122	<	f.whenCompleteAsync((Integer x, Throwable t) ->
3123	<	{ throw new CFException(); } );
3124	<	f.complete(three);
3125	<	checkCompletedNormally(f, three);
3126	<	checkCompletedWithWrappedCFException(g);
3127	<	}
4201	>	static class PlusFuture<T> extends CompletableFuture<T> {
4202	>	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4203	>	}
4204
4205	<	/**
4206	<	* whenCompleteAsync action executes on normal completion, propagating
4207	<	* source result.
4208	<	*/
4209	<	public void testWhenCompleteAsync1e() {
4210	<	final AtomicInteger a = new AtomicInteger();
4211	<	ThreadExecutor exec = new ThreadExecutor();
4212	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4213	<	CompletableFuture<Integer> g =
4214	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement(),
4215	<	exec);
4216	<	f.complete(three);
4217	<	checkCompletedNormally(f, three);
4218	<	checkCompletedNormally(g, three);
4219	<	assertEquals(a.get(), 1);
4205	>	/** Implements "monadic plus". */
4206	>	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
4207	>	CompletableFuture<? extends T> g) {
4208	>	PlusFuture<T> plus = new PlusFuture<T>();
4209	>	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
4210	>	try {
4211	>	if (ex == null) {
4212	>	if (plus.complete(result))
4213	>	if (plus.firstFailure.get() != null)
4214	>	plus.firstFailure.set(null);
4215	>	}
4216	>	else if (plus.firstFailure.compareAndSet(null, ex)) {
4217	>	if (plus.isDone())
4218	>	plus.firstFailure.set(null);
4219	>	}
4220	>	else {
4221	>	// first failure has precedence
4222	>	Throwable first = plus.firstFailure.getAndSet(null);
4223	>
4224	>	// may fail with "Self-suppression not permitted"
4225	>	try { first.addSuppressed(ex); }
4226	>	catch (Exception ignored) {}
4227	>
4228	>	plus.completeExceptionally(first);
4229	>	}
4230	>	} catch (Throwable unexpected) {
4231	>	plus.completeExceptionally(unexpected);
4232	>	}
4233	>	};
4234	>	f.whenComplete(action);
4235	>	g.whenComplete(action);
4236	>	return plus;
4237	>	}
4238		}
4239
4240		/**
4241	<	* whenCompleteAsync action executes on exceptional completion, propagating
4242	<	* source result.
4241	>	* CompletableFuture is an additive monad - sort of.
4242	>	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
4243		*/
4244	<	public void testWhenCompleteAsync2e() {
4245	<	final AtomicInteger a = new AtomicInteger();
4246	<	ThreadExecutor exec = new ThreadExecutor();
4247	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4248	<	CompletableFuture<Integer> g =
4249	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement(),
4250	<	exec);
4251	<	f.completeExceptionally(new CFException());
4252	<	checkCompletedWithWrappedCFException(f);
4253	<	checkCompletedWithWrappedCFException(g);
4254	<	}
4244	>	public void testAdditiveMonad() throws Throwable {
4245	>	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
4246	>	CompletableFuture<Long> zero = Monad.zero();
4247	>
4248	>	// Some mutually non-commutative functions
4249	>	Function<Long, CompletableFuture<Long>> triple
4250	>	= x -> Monad.unit(3 * x);
4251	>	Function<Long, CompletableFuture<Long>> inc
4252	>	= x -> Monad.unit(x + 1);
4253	>
4254	>	// unit is a right identity: m >>= unit === m
4255	>	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
4256	>	inc.apply(5L));
4257	>	// unit is a left identity: (unit x) >>= f === f x
4258	>	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
4259	>	inc.apply(5L));
4260	>
4261	>	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4262	>	Monad.assertFutureEquals(
4263	>	unit.apply(5L).thenCompose(inc).thenCompose(triple),
4264	>	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4265	>
4266	>	// The case for CompletableFuture as an additive monad is weaker...
4267	>
4268	>	// zero is a monadic zero
4269	>	Monad.assertZero(zero);
4270	>
4271	>	// left zero: zero >>= f === zero
4272	>	Monad.assertZero(zero.thenCompose(inc));
4273	>	// right zero: f >>= (\x -> zero) === zero
4274	>	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4275	>
4276	>	// f plus zero === f
4277	>	Monad.assertFutureEquals(Monad.unit(5L),
4278	>	Monad.plus(Monad.unit(5L), zero));
4279	>	// zero plus f === f
4280	>	Monad.assertFutureEquals(Monad.unit(5L),
4281	>	Monad.plus(zero, Monad.unit(5L)));
4282	>	// zero plus zero === zero
4283	>	Monad.assertZero(Monad.plus(zero, zero));
4284	>	{
4285	>	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
4286	>	Monad.unit(8L));
4287	>	// non-determinism
4288	>	assertTrue(f.get() == 5L || f.get() == 8L);
4289	>	}
4290
4291	<	/**
4292	<	* If a whenCompleteAsync action throws an exception when triggered
4293	<	* by a normal completion, it completes exceptionally
4294	<	*/
4295	<	public void testWhenCompleteAsync3e() {
4296	<	ThreadExecutor exec = new ThreadExecutor();
4297	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4298	<	CompletableFuture<Integer> g =
4299	<	f.whenCompleteAsync((Integer x, Throwable t) ->
4300	<	{ throw new CFException(); },
4301	<	exec);
4302	<	f.complete(three);
4303	<	checkCompletedNormally(f, three);
4304	<	checkCompletedWithWrappedCFException(g);
4291	>	CompletableFuture<Long> godot = new CompletableFuture<>();
4292	>	// f plus godot === f (doesn't wait for godot)
4293	>	Monad.assertFutureEquals(Monad.unit(5L),
4294	>	Monad.plus(Monad.unit(5L), godot));
4295	>	// godot plus f === f (doesn't wait for godot)
4296	>	Monad.assertFutureEquals(Monad.unit(5L),
4297	>	Monad.plus(godot, Monad.unit(5L)));
4298	>	}
4299	>
4300	>	/** Test long recursive chains of CompletableFutures with cascading completions */
4301	>	@SuppressWarnings("FutureReturnValueIgnored")
4302	>	public void testRecursiveChains() throws Throwable {
4303	>	for (ExecutionMode m : ExecutionMode.values())
4304	>	for (boolean addDeadEnds : new boolean[] { true, false })
4305	>	{
4306	>	final int val = 42;
4307	>	final int n = expensiveTests ? 1_000 : 2;
4308	>	CompletableFuture<Integer> head = new CompletableFuture<>();
4309	>	CompletableFuture<Integer> tail = head;
4310	>	for (int i = 0; i < n; i++) {
4311	>	if (addDeadEnds) m.thenApply(tail, v -> v + 1);
4312	>	tail = m.thenApply(tail, v -> v + 1);
4313	>	if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1);
4314	>	tail = m.applyToEither(tail, tail, v -> v + 1);
4315	>	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1);
4316	>	tail = m.thenCombine(tail, tail, (v, w) -> v + 1);
4317	>	}
4318	>	head.complete(val);
4319	>	assertEquals(val + 3 * n, (int) tail.join());
4320	>	}}
4321	>
4322	>	/**
4323	>	* A single CompletableFuture with many dependents.
4324	>	* A demo of scalability - runtime is O(n).
4325	>	*/
4326	>	@SuppressWarnings("FutureReturnValueIgnored")
4327	>	public void testManyDependents() throws Throwable {
4328	>	final int n = expensiveTests ? 1_000_000 : 10;
4329	>	final CompletableFuture<Void> head = new CompletableFuture<>();
4330	>	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4331	>	final AtomicInteger count = new AtomicInteger(0);
4332	>	for (int i = 0; i < n; i++) {
4333	>	head.thenRun(() -> count.getAndIncrement());
4334	>	head.thenAccept(x -> count.getAndIncrement());
4335	>	head.thenApply(x -> count.getAndIncrement());
4336	>
4337	>	head.runAfterBoth(complete, () -> count.getAndIncrement());
4338	>	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
4339	>	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
4340	>	complete.runAfterBoth(head, () -> count.getAndIncrement());
4341	>	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
4342	>	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4343	>
4344	>	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4345	>	head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4346	>	head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4347	>	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4348	>	new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement());
4349	>	new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement());
4350	>	}
4351	>	head.complete(null);
4352	>	assertEquals(5 * 3 * n, count.get());
4353		}
4354
4355	<	/**
4356	<	* handleAsync action completes normally with function value on
4357	<	* either normal or exceptional completion of source
4358	<	*/
4359	<	public void testHandleAsync() {
4360	<	CompletableFuture<Integer> f, g;
4361	<	IntegerHandler r;
4362	<
4363	<	f = new CompletableFuture<>();
4364	<	g = f.handleAsync(r = new IntegerHandler());
4365	<	assertFalse(r.ran);
4366	<	f.completeExceptionally(new CFException());
4367	<	checkCompletedWithWrappedCFException(f);
4368	<	checkCompletedNormally(g, three);
4369	<	assertTrue(r.ran);
4370	<
4371	<	f = new CompletableFuture<>();
4372	<	g = f.handleAsync(r = new IntegerHandler());
4373	<	assertFalse(r.ran);
4374	<	f.completeExceptionally(new CFException());
4375	<	checkCompletedWithWrappedCFException(f);
4376	<	checkCompletedNormally(g, three);
4377	<	assertTrue(r.ran);
3201	<
3202	<	f = new CompletableFuture<>();
3203	<	g = f.handleAsync(r = new IntegerHandler());
3204	<	assertFalse(r.ran);
3205	<	f.complete(one);
3206	<	checkCompletedNormally(f, one);
3207	<	checkCompletedNormally(g, two);
3208	<	assertTrue(r.ran);
4355	>	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4356	>	@SuppressWarnings("FutureReturnValueIgnored")
4357	>	public void testCoCompletionGarbageRetention() throws Throwable {
4358	>	final int n = expensiveTests ? 1_000_000 : 10;
4359	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4360	>	CompletableFuture<Integer> f;
4361	>	for (int i = 0; i < n; i++) {
4362	>	f = new CompletableFuture<>();
4363	>	f.runAfterEither(incomplete, () -> {});
4364	>	f.complete(null);
4365	>
4366	>	f = new CompletableFuture<>();
4367	>	f.acceptEither(incomplete, x -> {});
4368	>	f.complete(null);
4369	>
4370	>	f = new CompletableFuture<>();
4371	>	f.applyToEither(incomplete, x -> x);
4372	>	f.complete(null);
4373	>
4374	>	f = new CompletableFuture<>();
4375	>	CompletableFuture.anyOf(new CompletableFuture<?>[] { f, incomplete });
4376	>	f.complete(null);
4377	>	}
4378
4379	<	f = new CompletableFuture<>();
4380	<	g = f.handleAsync(r = new IntegerHandler());
4381	<	assertFalse(r.ran);
4382	<	f.complete(one);
4383	<	checkCompletedNormally(f, one);
4384	<	checkCompletedNormally(g, two);
4385	<	assertTrue(r.ran);
4379	>	for (int i = 0; i < n; i++) {
4380	>	f = new CompletableFuture<>();
4381	>	incomplete.runAfterEither(f, () -> {});
4382	>	f.complete(null);
4383	>
4384	>	f = new CompletableFuture<>();
4385	>	incomplete.acceptEither(f, x -> {});
4386	>	f.complete(null);
4387	>
4388	>	f = new CompletableFuture<>();
4389	>	incomplete.applyToEither(f, x -> x);
4390	>	f.complete(null);
4391	>
4392	>	f = new CompletableFuture<>();
4393	>	CompletableFuture.anyOf(new CompletableFuture<?>[] { incomplete, f });
4394	>	f.complete(null);
4395	>	}
4396		}
4397
4398		/**
4399	<	* handleAsync action with Executor completes normally with
4400	<	* function value on either normal or exceptional completion of
4401	<	* source
4402	<	*/
4403	<	public void testHandleAsync2() {
4404	<	CompletableFuture<Integer> f, g;
4405	<	ThreadExecutor exec = new ThreadExecutor();
4406	<	IntegerHandler r;
4407	<
4408	<	f = new CompletableFuture<>();
4409	<	g = f.handleAsync(r = new IntegerHandler(), exec);
4410	<	assertFalse(r.ran);
4411	<	f.completeExceptionally(new CFException());
4412	<	checkCompletedWithWrappedCFException(f);
4413	<	checkCompletedNormally(g, three);
4414	<	assertTrue(r.ran);
4415	<
4416	<	f = new CompletableFuture<>();
4417	<	g = f.handleAsync(r = new IntegerHandler(), exec);
4418	<	assertFalse(r.ran);
4419	<	f.completeExceptionally(new CFException());
4420	<	checkCompletedWithWrappedCFException(f);
4421	<	checkCompletedNormally(g, three);
4422	<	assertTrue(r.ran);
4423	<
4424	<	f = new CompletableFuture<>();
4425	<	g = f.handleAsync(r = new IntegerHandler(), exec);
4426	<	assertFalse(r.ran);
4427	<	f.complete(one);
4428	<	checkCompletedNormally(f, one);
4429	<	checkCompletedNormally(g, two);
4430	<	assertTrue(r.ran);
4431	<
4432	<	f = new CompletableFuture<>();
4433	<	g = f.handleAsync(r = new IntegerHandler(), exec);
4434	<	assertFalse(r.ran);
4435	<	f.complete(one);
4436	<	checkCompletedNormally(f, one);
4437	<	checkCompletedNormally(g, two);
4438	<	assertTrue(r.ran);
4439	<	}
4399	>	* Reproduction recipe for:
4400	>	* 8160402: Garbage retention with CompletableFuture.anyOf
4401	>	* 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
4402	>	*/
4403	>	public void testAnyOfGarbageRetention() throws Throwable {
4404	>	for (Integer v : new Integer[] { 1, null })
4405	>	{
4406	>	final int n = expensiveTests ? 100_000 : 10;
4407	>	CompletableFuture<Integer>[] fs
4408	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4409	>	for (int i = 0; i < fs.length; i++)
4410	>	fs[i] = new CompletableFuture<>();
4411	>	fs[fs.length - 1].complete(v);
4412	>	for (int i = 0; i < n; i++)
4413	>	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4414	>	}}
4415	>
4416	>	/**
4417	>	* Checks for garbage retention with allOf.
4418	>	*
4419	>	* As of 2016-07, fails with OOME:
4420	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4421	>	*/
4422	>	public void testCancelledAllOfGarbageRetention() throws Throwable {
4423	>	final int n = expensiveTests ? 100_000 : 10;
4424	>	CompletableFuture<Integer>[] fs
4425	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4426	>	for (int i = 0; i < fs.length; i++)
4427	>	fs[i] = new CompletableFuture<>();
4428	>	for (int i = 0; i < n; i++)
4429	>	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4430	>	}
4431	>
4432	>	/**
4433	>	* Checks for garbage retention when a dependent future is
4434	>	* cancelled and garbage-collected.
4435	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4436	>	*
4437	>	* As of 2016-07, fails with OOME:
4438	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4439	>	*/
4440	>	public void testCancelledGarbageRetention() throws Throwable {
4441	>	final int n = expensiveTests ? 100_000 : 10;
4442	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4443	>	for (int i = 0; i < n; i++)
4444	>	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4445	>	}
4446	>
4447	>	/**
4448	>	* Checks for garbage retention when MinimalStage.toCompletableFuture()
4449	>	* is invoked many times.
4450	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4451	>	*
4452	>	* As of 2016-07, fails with OOME:
4453	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck
4454	>	*/
4455	>	public void testToCompletableFutureGarbageRetention() throws Throwable {
4456	>	final int n = expensiveTests ? 900_000 : 10;
4457	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4458	>	CompletionStage minimal = neverCompleted.minimalCompletionStage();
4459	>	for (int i = 0; i < n; i++)
4460	>	assertTrue(minimal.toCompletableFuture().cancel(true));
4461	>	}
4462	>
4463	>	//     static <U> U join(CompletionStage<U> stage) {
4464	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4465	>	//         stage.whenComplete((v, ex) -> {
4466	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4467	>	//         });
4468	>	//         return f.join();
4469	>	//     }
4470	>
4471	>	//     static <U> boolean isDone(CompletionStage<U> stage) {
4472	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4473	>	//         stage.whenComplete((v, ex) -> {
4474	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4475	>	//         });
4476	>	//         return f.isDone();
4477	>	//     }
4478	>
4479	>	//     static <U> U join2(CompletionStage<U> stage) {
4480	>	//         return stage.toCompletableFuture().copy().join();
4481	>	//     }
4482	>
4483	>	//     static <U> boolean isDone2(CompletionStage<U> stage) {
4484	>	//         return stage.toCompletableFuture().copy().isDone();
4485	>	//     }
4486
4487		}

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