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

Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.27 by jsr166, Mon Jul 8 21:12:28 2013 UTC vs.
Revision 1.188 by jsr166, Wed Aug 16 17:18:34 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().matches(".*\\[.*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());
83		assertFalse(f.isCancelled());
84		assertFalse(f.isCompletedExceptionally());
85	<	assertTrue(f.toString().contains("[Completed normally]"));
85	>	assertTrue(f.toString().matches(".*\\[.*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.toString().contains("[Completed exceptionally]"));
139	>	assertTrue(f.isDone());
140	>	assertTrue(f.isCompletedExceptionally());
141	>	assertTrue(f.toString().matches(".*\\[.*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.toString().contains("[Completed exceptionally]"));
195	>	assertTrue(f.isCancelled());
196	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
197		}
198
199		/**
#	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	<	}
326	<
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
331		*/
332	<	public void testToString() {
333	<	CompletableFuture<String> f;
334	<
335	<	f = new CompletableFuture<String>();
336	<	assertTrue(f.toString().contains("[Not completed]"));
337	<
338	<	f.complete("foo");
339	<	assertTrue(f.toString().contains("[Completed normally]"));
340	<
341	<	f = new CompletableFuture<String>();
342	<	f.completeExceptionally(new IndexOutOfBoundsException());
343	<	assertTrue(f.toString().contains("[Completed exceptionally]"));
332	>	public void testToString_incomplete() {
333	>	CompletableFuture<String> f = new CompletableFuture<String>();
334	>	assertTrue(f.toString().matches(".*\\[.*Not completed.*\\]"));
335	>	if (testImplementationDetails)
336	>	assertEquals(identityString(f) + "[Not completed]",
337	>	f.toString());
338	>	}
339	>
340	>	public void testToString_normal() {
341	>	CompletableFuture<String> f = new CompletableFuture<String>();
342	>	assertTrue(f.complete("foo"));
343	>	assertTrue(f.toString().matches(".*\\[.*Completed normally.*\\]"));
344	>	if (testImplementationDetails)
345	>	assertEquals(identityString(f) + "[Completed normally]",
346	>	f.toString());
347	>	}
348	>
349	>	public void testToString_exception() {
350	>	CompletableFuture<String> f = new CompletableFuture<String>();
351	>	assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
352	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
353	>	if (testImplementationDetails)
354	>	assertTrue(f.toString().startsWith(
355	>	identityString(f) + "[Completed exceptionally: "));
356	>	}
357	>
358	>	public void testToString_cancelled() {
359	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
360	>	CompletableFuture<String> f = new CompletableFuture<String>();
361	>	assertTrue(f.cancel(mayInterruptIfRunning));
362	>	assertTrue(f.toString().matches(".*\\[.*Completed exceptionally.*\\]"));
363	>	if (testImplementationDetails)
364	>	assertTrue(f.toString().startsWith(
365	>	identityString(f) + "[Completed exceptionally: "));
366	>	}
367		}
368
369		/**
#	Line 285 | Line 374 | public class CompletableFutureTest exten
374		checkCompletedNormally(f, "test");
375		}
376
377	<	// Choose non-commutative actions for better coverage
377	>	abstract static class CheckedAction {
378	>	int invocationCount = 0;
379	>	final ExecutionMode m;
380	>	CheckedAction(ExecutionMode m) { this.m = m; }
381	>	void invoked() {
382	>	m.checkExecutionMode();
383	>	assertEquals(0, invocationCount++);
384	>	}
385	>	void assertNotInvoked() { assertEquals(0, invocationCount); }
386	>	void assertInvoked() { assertEquals(1, invocationCount); }
387	>	}
388	>
389	>	abstract static class CheckedIntegerAction extends CheckedAction {
390	>	Integer value;
391	>	CheckedIntegerAction(ExecutionMode m) { super(m); }
392	>	void assertValue(Integer expected) {
393	>	assertInvoked();
394	>	assertEquals(expected, value);
395	>	}
396	>	}
397	>
398	>	static class IntegerSupplier extends CheckedAction
399	>	implements Supplier<Integer>
400	>	{
401	>	final Integer value;
402	>	IntegerSupplier(ExecutionMode m, Integer value) {
403	>	super(m);
404	>	this.value = value;
405	>	}
406	>	public Integer get() {
407	>	invoked();
408	>	return value;
409	>	}
410	>	}
411	>
412	>	// A function that handles and produces null values as well.
413	>	static Integer inc(Integer x) {
414	>	return (x == null) ? null : x + 1;
415	>	}
416
417	<	static final Supplier<Integer> supplyOne =
418	<	() -> Integer.valueOf(1);
419	<	static final Function<Integer, Integer> inc =
420	<	(Integer x) -> Integer.valueOf(x.intValue() + 1);
421	<	static final BiFunction<Integer, Integer, Integer> subtract =
422	<	(Integer x, Integer y) -> Integer.valueOf(x.intValue() - y.intValue());
423	<	static final class IncAction implements Consumer<Integer> {
424	<	int value;
298	<	public void accept(Integer x) { value = x.intValue() + 1; }
417	>	static class NoopConsumer extends CheckedIntegerAction
418	>	implements Consumer<Integer>
419	>	{
420	>	NoopConsumer(ExecutionMode m) { super(m); }
421	>	public void accept(Integer x) {
422	>	invoked();
423	>	value = x;
424	>	}
425		}
426	<	static final class SubtractAction implements BiConsumer<Integer, Integer> {
427	<	int value;
426	>
427	>	static class IncFunction extends CheckedIntegerAction
428	>	implements Function<Integer,Integer>
429	>	{
430	>	IncFunction(ExecutionMode m) { super(m); }
431	>	public Integer apply(Integer x) {
432	>	invoked();
433	>	return value = inc(x);
434	>	}
435	>	}
436	>
437	>	// Choose non-commutative actions for better coverage
438	>	// A non-commutative function that handles and produces null values as well.
439	>	static Integer subtract(Integer x, Integer y) {
440	>	return (x == null && y == null) ? null :
441	>	((x == null) ? 42 : x.intValue())
442	>	- ((y == null) ? 99 : y.intValue());
443	>	}
444	>
445	>	static class SubtractAction extends CheckedIntegerAction
446	>	implements BiConsumer<Integer, Integer>
447	>	{
448	>	SubtractAction(ExecutionMode m) { super(m); }
449		public void accept(Integer x, Integer y) {
450	<	value = x.intValue() - y.intValue();
450	>	invoked();
451	>	value = subtract(x, y);
452		}
453		}
454	<	static final class Noop implements Runnable {
455	<	boolean ran;
456	<	public void run() { ran = true; }
454	>
455	>	static class SubtractFunction extends CheckedIntegerAction
456	>	implements BiFunction<Integer, Integer, Integer>
457	>	{
458	>	SubtractFunction(ExecutionMode m) { super(m); }
459	>	public Integer apply(Integer x, Integer y) {
460	>	invoked();
461	>	return value = subtract(x, y);
462	>	}
463		}
464
465	<	static final class FailingSupplier implements Supplier<Integer> {
466	<	boolean ran;
467	<	public Integer get() { ran = true; throw new CFException(); }
465	>	static class Noop extends CheckedAction implements Runnable {
466	>	Noop(ExecutionMode m) { super(m); }
467	>	public void run() {
468	>	invoked();
469	>	}
470		}
471	<	static final class FailingConsumer implements Consumer<Integer> {
472	<	boolean ran;
473	<	public void accept(Integer x) { ran = true; throw new CFException(); }
471	>
472	>	static class FailingSupplier extends CheckedAction
473	>	implements Supplier<Integer>
474	>	{
475	>	final CFException ex;
476	>	FailingSupplier(ExecutionMode m) { super(m); ex = new CFException(); }
477	>	public Integer get() {
478	>	invoked();
479	>	throw ex;
480	>	}
481		}
482	<	static final class FailingBiConsumer implements BiConsumer<Integer, Integer> {
483	<	boolean ran;
484	<	public void accept(Integer x, Integer y) { ran = true; throw new CFException(); }
482	>
483	>	static class FailingConsumer extends CheckedIntegerAction
484	>	implements Consumer<Integer>
485	>	{
486	>	final CFException ex;
487	>	FailingConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
488	>	public void accept(Integer x) {
489	>	invoked();
490	>	value = x;
491	>	throw ex;
492	>	}
493	>	}
494	>
495	>	static class FailingBiConsumer extends CheckedIntegerAction
496	>	implements BiConsumer<Integer, Integer>
497	>	{
498	>	final CFException ex;
499	>	FailingBiConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
500	>	public void accept(Integer x, Integer y) {
501	>	invoked();
502	>	value = subtract(x, y);
503	>	throw ex;
504	>	}
505		}
506	<	static final class FailingFunction implements Function<Integer, Integer> {
507	<	boolean ran;
508	<	public Integer apply(Integer x) { ran = true; throw new CFException(); }
506	>
507	>	static class FailingFunction extends CheckedIntegerAction
508	>	implements Function<Integer, Integer>
509	>	{
510	>	final CFException ex;
511	>	FailingFunction(ExecutionMode m) { super(m); ex = new CFException(); }
512	>	public Integer apply(Integer x) {
513	>	invoked();
514	>	value = x;
515	>	throw ex;
516	>	}
517		}
518	<	static final class FailingBiFunction implements BiFunction<Integer, Integer, Integer> {
519	<	boolean ran;
520	<	public Integer apply(Integer x, Integer y) { ran = true; throw new CFException(); }
518	>
519	>	static class FailingBiFunction extends CheckedIntegerAction
520	>	implements BiFunction<Integer, Integer, Integer>
521	>	{
522	>	final CFException ex;
523	>	FailingBiFunction(ExecutionMode m) { super(m); ex = new CFException(); }
524	>	public Integer apply(Integer x, Integer y) {
525	>	invoked();
526	>	value = subtract(x, y);
527	>	throw ex;
528	>	}
529		}
530	<	static final class FailingNoop implements Runnable {
531	<	boolean ran;
532	<	public void run() { ran = true; throw new CFException(); }
530	>
531	>	static class FailingRunnable extends CheckedAction implements Runnable {
532	>	final CFException ex;
533	>	FailingRunnable(ExecutionMode m) { super(m); ex = new CFException(); }
534	>	public void run() {
535	>	invoked();
536	>	throw ex;
537	>	}
538		}
539
540	<	static final class CompletableFutureInc
541	<	implements Function<Integer, CompletableFuture<Integer>> {
542	<	boolean ran;
540	>	static class CompletableFutureInc extends CheckedIntegerAction
541	>	implements Function<Integer, CompletableFuture<Integer>>
542	>	{
543	>	CompletableFutureInc(ExecutionMode m) { super(m); }
544		public CompletableFuture<Integer> apply(Integer x) {
545	<	ran = true;
545	>	invoked();
546	>	value = x;
547		CompletableFuture<Integer> f = new CompletableFuture<>();
548	<	f.complete(Integer.valueOf(x.intValue() + 1));
548	>	assertTrue(f.complete(inc(x)));
549		return f;
550		}
551		}
552
553	<	static final class FailingCompletableFutureFunction
554	<	implements Function<Integer, CompletableFuture<Integer>> {
555	<	boolean ran;
553	>	static class FailingCompletableFutureFunction extends CheckedIntegerAction
554	>	implements Function<Integer, CompletableFuture<Integer>>
555	>	{
556	>	final CFException ex;
557	>	FailingCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
558		public CompletableFuture<Integer> apply(Integer x) {
559	<	ran = true; throw new CFException();
559	>	invoked();
560	>	value = x;
561	>	throw ex;
562	>	}
563	>	}
564	>
565	>	static class CountingRejectingExecutor implements Executor {
566	>	final RejectedExecutionException ex = new RejectedExecutionException();
567	>	final AtomicInteger count = new AtomicInteger(0);
568	>	public void execute(Runnable r) {
569	>	count.getAndIncrement();
570	>	throw ex;
571		}
572		}
573
574		// Used for explicit executor tests
575		static final class ThreadExecutor implements Executor {
576	<	AtomicInteger count = new AtomicInteger(0);
576	>	final AtomicInteger count = new AtomicInteger(0);
577	>	static final ThreadGroup tg = new ThreadGroup("ThreadExecutor");
578	>	static boolean startedCurrentThread() {
579	>	return Thread.currentThread().getThreadGroup() == tg;
580	>	}
581
582		public void execute(Runnable r) {
583		count.getAndIncrement();
584	<	new Thread(r).start();
584	>	new Thread(tg, r).start();
585		}
586		}
587
588	<	static final class ExceptionToInteger implements Function<Throwable, Integer> {
589	<	public Integer apply(Throwable x) { return Integer.valueOf(3); }
367	<	}
588	>	static final boolean defaultExecutorIsCommonPool
589	>	= ForkJoinPool.getCommonPoolParallelism() > 1;
590
591	<	static final class IntegerHandler implements BiFunction<Integer, Throwable, Integer> {
592	<	boolean ran;
593	<	public Integer apply(Integer x, Throwable t) {
594	<	ran = true;
595	<	return (t == null) ? two : three;
596	<	}
597	<	}
591	>	/**
592	>	* Permits the testing of parallel code for the 3 different
593	>	* execution modes without copy/pasting all the test methods.
594	>	*/
595	>	enum ExecutionMode {
596	>	SYNC {
597	>	public void checkExecutionMode() {
598	>	assertFalse(ThreadExecutor.startedCurrentThread());
599	>	assertNull(ForkJoinTask.getPool());
600	>	}
601	>	public CompletableFuture<Void> runAsync(Runnable a) {
602	>	throw new UnsupportedOperationException();
603	>	}
604	>	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
605	>	throw new UnsupportedOperationException();
606	>	}
607	>	public <T> CompletableFuture<Void> thenRun
608	>	(CompletableFuture<T> f, Runnable a) {
609	>	return f.thenRun(a);
610	>	}
611	>	public <T> CompletableFuture<Void> thenAccept
612	>	(CompletableFuture<T> f, Consumer<? super T> a) {
613	>	return f.thenAccept(a);
614	>	}
615	>	public <T,U> CompletableFuture<U> thenApply
616	>	(CompletableFuture<T> f, Function<? super T,U> a) {
617	>	return f.thenApply(a);
618	>	}
619	>	public <T,U> CompletableFuture<U> thenCompose
620	>	(CompletableFuture<T> f,
621	>	Function<? super T,? extends CompletionStage<U>> a) {
622	>	return f.thenCompose(a);
623	>	}
624	>	public <T,U> CompletableFuture<U> handle
625	>	(CompletableFuture<T> f,
626	>	BiFunction<? super T,Throwable,? extends U> a) {
627	>	return f.handle(a);
628	>	}
629	>	public <T> CompletableFuture<T> whenComplete
630	>	(CompletableFuture<T> f,
631	>	BiConsumer<? super T,? super Throwable> a) {
632	>	return f.whenComplete(a);
633	>	}
634	>	public <T,U> CompletableFuture<Void> runAfterBoth
635	>	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
636	>	return f.runAfterBoth(g, a);
637	>	}
638	>	public <T,U> CompletableFuture<Void> thenAcceptBoth
639	>	(CompletableFuture<T> f,
640	>	CompletionStage<? extends U> g,
641	>	BiConsumer<? super T,? super U> a) {
642	>	return f.thenAcceptBoth(g, a);
643	>	}
644	>	public <T,U,V> CompletableFuture<V> thenCombine
645	>	(CompletableFuture<T> f,
646	>	CompletionStage<? extends U> g,
647	>	BiFunction<? super T,? super U,? extends V> a) {
648	>	return f.thenCombine(g, a);
649	>	}
650	>	public <T> CompletableFuture<Void> runAfterEither
651	>	(CompletableFuture<T> f,
652	>	CompletionStage<?> g,
653	>	java.lang.Runnable a) {
654	>	return f.runAfterEither(g, a);
655	>	}
656	>	public <T> CompletableFuture<Void> acceptEither
657	>	(CompletableFuture<T> f,
658	>	CompletionStage<? extends T> g,
659	>	Consumer<? super T> a) {
660	>	return f.acceptEither(g, a);
661	>	}
662	>	public <T,U> CompletableFuture<U> applyToEither
663	>	(CompletableFuture<T> f,
664	>	CompletionStage<? extends T> g,
665	>	Function<? super T,U> a) {
666	>	return f.applyToEither(g, a);
667	>	}
668	>	},
669
670	+	ASYNC {
671	+	public void checkExecutionMode() {
672	+	assertEquals(defaultExecutorIsCommonPool,
673	+	(ForkJoinPool.commonPool() == ForkJoinTask.getPool()));
674	+	}
675	+	public CompletableFuture<Void> runAsync(Runnable a) {
676	+	return CompletableFuture.runAsync(a);
677	+	}
678	+	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
679	+	return CompletableFuture.supplyAsync(a);
680	+	}
681	+	public <T> CompletableFuture<Void> thenRun
682	+	(CompletableFuture<T> f, Runnable a) {
683	+	return f.thenRunAsync(a);
684	+	}
685	+	public <T> CompletableFuture<Void> thenAccept
686	+	(CompletableFuture<T> f, Consumer<? super T> a) {
687	+	return f.thenAcceptAsync(a);
688	+	}
689	+	public <T,U> CompletableFuture<U> thenApply
690	+	(CompletableFuture<T> f, Function<? super T,U> a) {
691	+	return f.thenApplyAsync(a);
692	+	}
693	+	public <T,U> CompletableFuture<U> thenCompose
694	+	(CompletableFuture<T> f,
695	+	Function<? super T,? extends CompletionStage<U>> a) {
696	+	return f.thenComposeAsync(a);
697	+	}
698	+	public <T,U> CompletableFuture<U> handle
699	+	(CompletableFuture<T> f,
700	+	BiFunction<? super T,Throwable,? extends U> a) {
701	+	return f.handleAsync(a);
702	+	}
703	+	public <T> CompletableFuture<T> whenComplete
704	+	(CompletableFuture<T> f,
705	+	BiConsumer<? super T,? super Throwable> a) {
706	+	return f.whenCompleteAsync(a);
707	+	}
708	+	public <T,U> CompletableFuture<Void> runAfterBoth
709	+	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
710	+	return f.runAfterBothAsync(g, a);
711	+	}
712	+	public <T,U> CompletableFuture<Void> thenAcceptBoth
713	+	(CompletableFuture<T> f,
714	+	CompletionStage<? extends U> g,
715	+	BiConsumer<? super T,? super U> a) {
716	+	return f.thenAcceptBothAsync(g, a);
717	+	}
718	+	public <T,U,V> CompletableFuture<V> thenCombine
719	+	(CompletableFuture<T> f,
720	+	CompletionStage<? extends U> g,
721	+	BiFunction<? super T,? super U,? extends V> a) {
722	+	return f.thenCombineAsync(g, a);
723	+	}
724	+	public <T> CompletableFuture<Void> runAfterEither
725	+	(CompletableFuture<T> f,
726	+	CompletionStage<?> g,
727	+	java.lang.Runnable a) {
728	+	return f.runAfterEitherAsync(g, a);
729	+	}
730	+	public <T> CompletableFuture<Void> acceptEither
731	+	(CompletableFuture<T> f,
732	+	CompletionStage<? extends T> g,
733	+	Consumer<? super T> a) {
734	+	return f.acceptEitherAsync(g, a);
735	+	}
736	+	public <T,U> CompletableFuture<U> applyToEither
737	+	(CompletableFuture<T> f,
738	+	CompletionStage<? extends T> g,
739	+	Function<? super T,U> a) {
740	+	return f.applyToEitherAsync(g, a);
741	+	}
742	+	},
743	+
744	+	EXECUTOR {
745	+	public void checkExecutionMode() {
746	+	assertTrue(ThreadExecutor.startedCurrentThread());
747	+	}
748	+	public CompletableFuture<Void> runAsync(Runnable a) {
749	+	return CompletableFuture.runAsync(a, new ThreadExecutor());
750	+	}
751	+	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
752	+	return CompletableFuture.supplyAsync(a, new ThreadExecutor());
753	+	}
754	+	public <T> CompletableFuture<Void> thenRun
755	+	(CompletableFuture<T> f, Runnable a) {
756	+	return f.thenRunAsync(a, new ThreadExecutor());
757	+	}
758	+	public <T> CompletableFuture<Void> thenAccept
759	+	(CompletableFuture<T> f, Consumer<? super T> a) {
760	+	return f.thenAcceptAsync(a, new ThreadExecutor());
761	+	}
762	+	public <T,U> CompletableFuture<U> thenApply
763	+	(CompletableFuture<T> f, Function<? super T,U> a) {
764	+	return f.thenApplyAsync(a, new ThreadExecutor());
765	+	}
766	+	public <T,U> CompletableFuture<U> thenCompose
767	+	(CompletableFuture<T> f,
768	+	Function<? super T,? extends CompletionStage<U>> a) {
769	+	return f.thenComposeAsync(a, new ThreadExecutor());
770	+	}
771	+	public <T,U> CompletableFuture<U> handle
772	+	(CompletableFuture<T> f,
773	+	BiFunction<? super T,Throwable,? extends U> a) {
774	+	return f.handleAsync(a, new ThreadExecutor());
775	+	}
776	+	public <T> CompletableFuture<T> whenComplete
777	+	(CompletableFuture<T> f,
778	+	BiConsumer<? super T,? super Throwable> a) {
779	+	return f.whenCompleteAsync(a, new ThreadExecutor());
780	+	}
781	+	public <T,U> CompletableFuture<Void> runAfterBoth
782	+	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
783	+	return f.runAfterBothAsync(g, a, new ThreadExecutor());
784	+	}
785	+	public <T,U> CompletableFuture<Void> thenAcceptBoth
786	+	(CompletableFuture<T> f,
787	+	CompletionStage<? extends U> g,
788	+	BiConsumer<? super T,? super U> a) {
789	+	return f.thenAcceptBothAsync(g, a, new ThreadExecutor());
790	+	}
791	+	public <T,U,V> CompletableFuture<V> thenCombine
792	+	(CompletableFuture<T> f,
793	+	CompletionStage<? extends U> g,
794	+	BiFunction<? super T,? super U,? extends V> a) {
795	+	return f.thenCombineAsync(g, a, new ThreadExecutor());
796	+	}
797	+	public <T> CompletableFuture<Void> runAfterEither
798	+	(CompletableFuture<T> f,
799	+	CompletionStage<?> g,
800	+	java.lang.Runnable a) {
801	+	return f.runAfterEitherAsync(g, a, new ThreadExecutor());
802	+	}
803	+	public <T> CompletableFuture<Void> acceptEither
804	+	(CompletableFuture<T> f,
805	+	CompletionStage<? extends T> g,
806	+	Consumer<? super T> a) {
807	+	return f.acceptEitherAsync(g, a, new ThreadExecutor());
808	+	}
809	+	public <T,U> CompletableFuture<U> applyToEither
810	+	(CompletableFuture<T> f,
811	+	CompletionStage<? extends T> g,
812	+	Function<? super T,U> a) {
813	+	return f.applyToEitherAsync(g, a, new ThreadExecutor());
814	+	}
815	+	};
816	+
817	+	public abstract void checkExecutionMode();
818	+	public abstract CompletableFuture<Void> runAsync(Runnable a);
819	+	public abstract <U> CompletableFuture<U> supplyAsync(Supplier<U> a);
820	+	public abstract <T> CompletableFuture<Void> thenRun
821	+	(CompletableFuture<T> f, Runnable a);
822	+	public abstract <T> CompletableFuture<Void> thenAccept
823	+	(CompletableFuture<T> f, Consumer<? super T> a);
824	+	public abstract <T,U> CompletableFuture<U> thenApply
825	+	(CompletableFuture<T> f, Function<? super T,U> a);
826	+	public abstract <T,U> CompletableFuture<U> thenCompose
827	+	(CompletableFuture<T> f,
828	+	Function<? super T,? extends CompletionStage<U>> a);
829	+	public abstract <T,U> CompletableFuture<U> handle
830	+	(CompletableFuture<T> f,
831	+	BiFunction<? super T,Throwable,? extends U> a);
832	+	public abstract <T> CompletableFuture<T> whenComplete
833	+	(CompletableFuture<T> f,
834	+	BiConsumer<? super T,? super Throwable> a);
835	+	public abstract <T,U> CompletableFuture<Void> runAfterBoth
836	+	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a);
837	+	public abstract <T,U> CompletableFuture<Void> thenAcceptBoth
838	+	(CompletableFuture<T> f,
839	+	CompletionStage<? extends U> g,
840	+	BiConsumer<? super T,? super U> a);
841	+	public abstract <T,U,V> CompletableFuture<V> thenCombine
842	+	(CompletableFuture<T> f,
843	+	CompletionStage<? extends U> g,
844	+	BiFunction<? super T,? super U,? extends V> a);
845	+	public abstract <T> CompletableFuture<Void> runAfterEither
846	+	(CompletableFuture<T> f,
847	+	CompletionStage<?> g,
848	+	java.lang.Runnable a);
849	+	public abstract <T> CompletableFuture<Void> acceptEither
850	+	(CompletableFuture<T> f,
851	+	CompletionStage<? extends T> g,
852	+	Consumer<? super T> a);
853	+	public abstract <T,U> CompletableFuture<U> applyToEither
854	+	(CompletableFuture<T> f,
855	+	CompletionStage<? extends T> g,
856	+	Function<? super T,U> a);
857	+	}
858	+
859	+	/**
860	+	* exceptionally action is not invoked when source completes
861	+	* normally, and source result is propagated
862	+	*/
863	+	public void testExceptionally_normalCompletion() {
864	+	for (boolean createIncomplete : new boolean[] { true, false })
865	+	for (Integer v1 : new Integer[] { 1, null })
866	+	{
867	+	final AtomicInteger a = new AtomicInteger(0);
868	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
869	+	if (!createIncomplete) assertTrue(f.complete(v1));
870	+	final CompletableFuture<Integer> g = f.exceptionally
871	+	((Throwable t) -> {
872	+	a.getAndIncrement();
873	+	threadFail("should not be called");
874	+	return null;            // unreached
875	+	});
876	+	if (createIncomplete) assertTrue(f.complete(v1));
877	+
878	+	checkCompletedNormally(g, v1);
879	+	checkCompletedNormally(f, v1);
880	+	assertEquals(0, a.get());
881	+	}}
882
883		/**
884		* exceptionally action completes with function value on source
885	<	* exception;  otherwise with source value
885	>	* exception
886		*/
887	<	public void testExceptionally() {
888	<	CompletableFuture<Integer> f = new CompletableFuture<>();
889	<	ExceptionToInteger r = new ExceptionToInteger();
890	<	CompletableFuture<Integer> g = f.exceptionally(r);
891	<	f.completeExceptionally(new CFException());
892	<	checkCompletedNormally(g, three);
887	>	public void testExceptionally_exceptionalCompletion() {
888	>	for (boolean createIncomplete : new boolean[] { true, false })
889	>	for (Integer v1 : new Integer[] { 1, null })
890	>	{
891	>	final AtomicInteger a = new AtomicInteger(0);
892	>	final CFException ex = new CFException();
893	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
894	>	if (!createIncomplete) f.completeExceptionally(ex);
895	>	final CompletableFuture<Integer> g = f.exceptionally
896	>	((Throwable t) -> {
897	>	ExecutionMode.SYNC.checkExecutionMode();
898	>	threadAssertSame(t, ex);
899	>	a.getAndIncrement();
900	>	return v1;
901	>	});
902	>	if (createIncomplete) f.completeExceptionally(ex);
903	>
904	>	checkCompletedNormally(g, v1);
905	>	assertEquals(1, a.get());
906	>	}}
907	>
908	>	/**
909	>	* If an "exceptionally action" throws an exception, it completes
910	>	* exceptionally with that exception
911	>	*/
912	>	public void testExceptionally_exceptionalCompletionActionFailed() {
913	>	for (boolean createIncomplete : new boolean[] { true, false })
914	>	{
915	>	final AtomicInteger a = new AtomicInteger(0);
916	>	final CFException ex1 = new CFException();
917	>	final CFException ex2 = new CFException();
918	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
919	>	if (!createIncomplete) f.completeExceptionally(ex1);
920	>	final CompletableFuture<Integer> g = f.exceptionally
921	>	((Throwable t) -> {
922	>	ExecutionMode.SYNC.checkExecutionMode();
923	>	threadAssertSame(t, ex1);
924	>	a.getAndIncrement();
925	>	throw ex2;
926	>	});
927	>	if (createIncomplete) f.completeExceptionally(ex1);
928	>
929	>	checkCompletedWithWrappedException(g, ex2);
930	>	checkCompletedExceptionally(f, ex1);
931	>	assertEquals(1, a.get());
932	>	}}
933
934	<	f = new CompletableFuture<>();
935	<	r = new ExceptionToInteger();
936	<	g = f.exceptionally(r);
937	<	f.complete(one);
938	<	checkCompletedNormally(g, one);
939	<	}
934	>	/**
935	>	* whenComplete action executes on normal completion, propagating
936	>	* source result.
937	>	*/
938	>	public void testWhenComplete_normalCompletion() {
939	>	for (ExecutionMode m : ExecutionMode.values())
940	>	for (boolean createIncomplete : new boolean[] { true, false })
941	>	for (Integer v1 : new Integer[] { 1, null })
942	>	{
943	>	final AtomicInteger a = new AtomicInteger(0);
944	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
945	>	if (!createIncomplete) assertTrue(f.complete(v1));
946	>	final CompletableFuture<Integer> g = m.whenComplete
947	>	(f,
948	>	(Integer result, Throwable t) -> {
949	>	m.checkExecutionMode();
950	>	threadAssertSame(result, v1);
951	>	threadAssertNull(t);
952	>	a.getAndIncrement();
953	>	});
954	>	if (createIncomplete) assertTrue(f.complete(v1));
955	>
956	>	checkCompletedNormally(g, v1);
957	>	checkCompletedNormally(f, v1);
958	>	assertEquals(1, a.get());
959	>	}}
960
961		/**
962	<	* handle action completes normally with function value on either
963	<	* normal or exceptional completion of source
962	>	* whenComplete action executes on exceptional completion, propagating
963	>	* source result.
964		*/
965	<	public void testHandle() {
966	<	CompletableFuture<Integer> f, g;
967	<	IntegerHandler r;
965	>	public void testWhenComplete_exceptionalCompletion() {
966	>	for (ExecutionMode m : ExecutionMode.values())
967	>	for (boolean createIncomplete : new boolean[] { true, false })
968	>	{
969	>	final AtomicInteger a = new AtomicInteger(0);
970	>	final CFException ex = new CFException();
971	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
972	>	if (!createIncomplete) f.completeExceptionally(ex);
973	>	final CompletableFuture<Integer> g = m.whenComplete
974	>	(f,
975	>	(Integer result, Throwable t) -> {
976	>	m.checkExecutionMode();
977	>	threadAssertNull(result);
978	>	threadAssertSame(t, ex);
979	>	a.getAndIncrement();
980	>	});
981	>	if (createIncomplete) f.completeExceptionally(ex);
982	>
983	>	checkCompletedWithWrappedException(g, ex);
984	>	checkCompletedExceptionally(f, ex);
985	>	assertEquals(1, a.get());
986	>	}}
987	>
988	>	/**
989	>	* whenComplete action executes on cancelled source, propagating
990	>	* CancellationException.
991	>	*/
992	>	public void testWhenComplete_sourceCancelled() {
993	>	for (ExecutionMode m : ExecutionMode.values())
994	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
995	>	for (boolean createIncomplete : new boolean[] { true, false })
996	>	{
997	>	final AtomicInteger a = new AtomicInteger(0);
998	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
999	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1000	>	final CompletableFuture<Integer> g = m.whenComplete
1001	>	(f,
1002	>	(Integer result, Throwable t) -> {
1003	>	m.checkExecutionMode();
1004	>	threadAssertNull(result);
1005	>	threadAssertTrue(t instanceof CancellationException);
1006	>	a.getAndIncrement();
1007	>	});
1008	>	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1009
1010	<	f = new CompletableFuture<>();
1011	<	f.completeExceptionally(new CFException());
1012	<	g = f.handle(r = new IntegerHandler());
1013	<	assertTrue(r.ran);
408	<	checkCompletedNormally(g, three);
1010	>	checkCompletedWithWrappedCancellationException(g);
1011	>	checkCancelled(f);
1012	>	assertEquals(1, a.get());
1013	>	}}
1014
1015	<	f = new CompletableFuture<>();
1016	<	g = f.handle(r = new IntegerHandler());
1017	<	assertFalse(r.ran);
1018	<	f.completeExceptionally(new CFException());
1019	<	checkCompletedNormally(g, three);
1020	<	assertTrue(r.ran);
1015	>	/**
1016	>	* If a whenComplete action throws an exception when triggered by
1017	>	* a normal completion, it completes exceptionally
1018	>	*/
1019	>	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
1020	>	for (boolean createIncomplete : new boolean[] { true, false })
1021	>	for (ExecutionMode m : ExecutionMode.values())
1022	>	for (Integer v1 : new Integer[] { 1, null })
1023	>	{
1024	>	final AtomicInteger a = new AtomicInteger(0);
1025	>	final CFException ex = new CFException();
1026	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1027	>	if (!createIncomplete) assertTrue(f.complete(v1));
1028	>	final CompletableFuture<Integer> g = m.whenComplete
1029	>	(f,
1030	>	(Integer result, Throwable t) -> {
1031	>	m.checkExecutionMode();
1032	>	threadAssertSame(result, v1);
1033	>	threadAssertNull(t);
1034	>	a.getAndIncrement();
1035	>	throw ex;
1036	>	});
1037	>	if (createIncomplete) assertTrue(f.complete(v1));
1038	>
1039	>	checkCompletedWithWrappedException(g, ex);
1040	>	checkCompletedNormally(f, v1);
1041	>	assertEquals(1, a.get());
1042	>	}}
1043
1044	<	f = new CompletableFuture<>();
1045	<	f.complete(one);
1046	<	g = f.handle(r = new IntegerHandler());
1047	<	assertTrue(r.ran);
1048	<	checkCompletedNormally(g, two);
1044	>	/**
1045	>	* If a whenComplete action throws an exception when triggered by
1046	>	* a source completion that also throws an exception, the source
1047	>	* exception takes precedence (unlike handle)
1048	>	*/
1049	>	public void testWhenComplete_sourceFailedActionFailed() {
1050	>	for (boolean createIncomplete : new boolean[] { true, false })
1051	>	for (ExecutionMode m : ExecutionMode.values())
1052	>	{
1053	>	final AtomicInteger a = new AtomicInteger(0);
1054	>	final CFException ex1 = new CFException();
1055	>	final CFException ex2 = new CFException();
1056	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1057	>
1058	>	if (!createIncomplete) f.completeExceptionally(ex1);
1059	>	final CompletableFuture<Integer> g = m.whenComplete
1060	>	(f,
1061	>	(Integer result, Throwable t) -> {
1062	>	m.checkExecutionMode();
1063	>	threadAssertSame(t, ex1);
1064	>	threadAssertNull(result);
1065	>	a.getAndIncrement();
1066	>	throw ex2;
1067	>	});
1068	>	if (createIncomplete) f.completeExceptionally(ex1);
1069	>
1070	>	checkCompletedWithWrappedException(g, ex1);
1071	>	checkCompletedExceptionally(f, ex1);
1072	>	if (testImplementationDetails) {
1073	>	assertEquals(1, ex1.getSuppressed().length);
1074	>	assertSame(ex2, ex1.getSuppressed()[0]);
1075	>	}
1076	>	assertEquals(1, a.get());
1077	>	}}
1078
1079	<	f = new CompletableFuture<>();
1080	<	g = f.handle(r = new IntegerHandler());
1081	<	assertFalse(r.ran);
1082	<	f.complete(one);
1083	<	assertTrue(r.ran);
1084	<	checkCompletedNormally(g, two);
1085	<	}
1079	>	/**
1080	>	* handle action completes normally with function value on normal
1081	>	* completion of source
1082	>	*/
1083	>	public void testHandle_normalCompletion() {
1084	>	for (ExecutionMode m : ExecutionMode.values())
1085	>	for (boolean createIncomplete : new boolean[] { true, false })
1086	>	for (Integer v1 : new Integer[] { 1, null })
1087	>	{
1088	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1089	>	final AtomicInteger a = new AtomicInteger(0);
1090	>	if (!createIncomplete) assertTrue(f.complete(v1));
1091	>	final CompletableFuture<Integer> g = m.handle
1092	>	(f,
1093	>	(Integer result, Throwable t) -> {
1094	>	m.checkExecutionMode();
1095	>	threadAssertSame(result, v1);
1096	>	threadAssertNull(t);
1097	>	a.getAndIncrement();
1098	>	return inc(v1);
1099	>	});
1100	>	if (createIncomplete) assertTrue(f.complete(v1));
1101	>
1102	>	checkCompletedNormally(g, inc(v1));
1103	>	checkCompletedNormally(f, v1);
1104	>	assertEquals(1, a.get());
1105	>	}}
1106
1107		/**
1108	<	* runAsync completes after running Runnable
1108	>	* handle action completes normally with function value on
1109	>	* exceptional completion of source
1110		*/
1111	<	public void testRunAsync() {
1112	<	Noop r = new Noop();
1113	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r);
1114	<	assertNull(f.join());
1115	<	assertTrue(r.ran);
1116	<	checkCompletedNormally(f, null);
1117	<	}
1111	>	public void testHandle_exceptionalCompletion() {
1112	>	for (ExecutionMode m : ExecutionMode.values())
1113	>	for (boolean createIncomplete : new boolean[] { true, false })
1114	>	for (Integer v1 : new Integer[] { 1, null })
1115	>	{
1116	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1117	>	final AtomicInteger a = new AtomicInteger(0);
1118	>	final CFException ex = new CFException();
1119	>	if (!createIncomplete) f.completeExceptionally(ex);
1120	>	final CompletableFuture<Integer> g = m.handle
1121	>	(f,
1122	>	(Integer result, Throwable t) -> {
1123	>	m.checkExecutionMode();
1124	>	threadAssertNull(result);
1125	>	threadAssertSame(t, ex);
1126	>	a.getAndIncrement();
1127	>	return v1;
1128	>	});
1129	>	if (createIncomplete) f.completeExceptionally(ex);
1130	>
1131	>	checkCompletedNormally(g, v1);
1132	>	checkCompletedExceptionally(f, ex);
1133	>	assertEquals(1, a.get());
1134	>	}}
1135	>
1136	>	/**
1137	>	* handle action completes normally with function value on
1138	>	* cancelled source
1139	>	*/
1140	>	public void testHandle_sourceCancelled() {
1141	>	for (ExecutionMode m : ExecutionMode.values())
1142	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1143	>	for (boolean createIncomplete : new boolean[] { true, false })
1144	>	for (Integer v1 : new Integer[] { 1, null })
1145	>	{
1146	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1147	>	final AtomicInteger a = new AtomicInteger(0);
1148	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1149	>	final CompletableFuture<Integer> g = m.handle
1150	>	(f,
1151	>	(Integer result, Throwable t) -> {
1152	>	m.checkExecutionMode();
1153	>	threadAssertNull(result);
1154	>	threadAssertTrue(t instanceof CancellationException);
1155	>	a.getAndIncrement();
1156	>	return v1;
1157	>	});
1158	>	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1159	>
1160	>	checkCompletedNormally(g, v1);
1161	>	checkCancelled(f);
1162	>	assertEquals(1, a.get());
1163	>	}}
1164
1165		/**
1166	<	* runAsync with executor completes after running Runnable
1166	>	* If a "handle action" throws an exception when triggered by
1167	>	* a normal completion, it completes exceptionally
1168		*/
1169	<	public void testRunAsync2() {
1170	<	Noop r = new Noop();
1171	<	ThreadExecutor exec = new ThreadExecutor();
1172	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r, exec);
1169	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1170	>	for (ExecutionMode m : ExecutionMode.values())
1171	>	for (boolean createIncomplete : new boolean[] { true, false })
1172	>	for (Integer v1 : new Integer[] { 1, null })
1173	>	{
1174	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1175	>	final AtomicInteger a = new AtomicInteger(0);
1176	>	final CFException ex = new CFException();
1177	>	if (!createIncomplete) assertTrue(f.complete(v1));
1178	>	final CompletableFuture<Integer> g = m.handle
1179	>	(f,
1180	>	(Integer result, Throwable t) -> {
1181	>	m.checkExecutionMode();
1182	>	threadAssertSame(result, v1);
1183	>	threadAssertNull(t);
1184	>	a.getAndIncrement();
1185	>	throw ex;
1186	>	});
1187	>	if (createIncomplete) assertTrue(f.complete(v1));
1188	>
1189	>	checkCompletedWithWrappedException(g, ex);
1190	>	checkCompletedNormally(f, v1);
1191	>	assertEquals(1, a.get());
1192	>	}}
1193	>
1194	>	/**
1195	>	* If a "handle action" throws an exception when triggered by
1196	>	* a source completion that also throws an exception, the action
1197	>	* exception takes precedence (unlike whenComplete)
1198	>	*/
1199	>	public void testHandle_sourceFailedActionFailed() {
1200	>	for (boolean createIncomplete : new boolean[] { true, false })
1201	>	for (ExecutionMode m : ExecutionMode.values())
1202	>	{
1203	>	final AtomicInteger a = new AtomicInteger(0);
1204	>	final CFException ex1 = new CFException();
1205	>	final CFException ex2 = new CFException();
1206	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1207	>
1208	>	if (!createIncomplete) f.completeExceptionally(ex1);
1209	>	final CompletableFuture<Integer> g = m.handle
1210	>	(f,
1211	>	(Integer result, Throwable t) -> {
1212	>	m.checkExecutionMode();
1213	>	threadAssertNull(result);
1214	>	threadAssertSame(ex1, t);
1215	>	a.getAndIncrement();
1216	>	throw ex2;
1217	>	});
1218	>	if (createIncomplete) f.completeExceptionally(ex1);
1219	>
1220	>	checkCompletedWithWrappedException(g, ex2);
1221	>	checkCompletedExceptionally(f, ex1);
1222	>	assertEquals(1, a.get());
1223	>	}}
1224	>
1225	>	/**
1226	>	* runAsync completes after running Runnable
1227	>	*/
1228	>	public void testRunAsync_normalCompletion() {
1229	>	ExecutionMode[] executionModes = {
1230	>	ExecutionMode.ASYNC,
1231	>	ExecutionMode.EXECUTOR,
1232	>	};
1233	>	for (ExecutionMode m : executionModes)
1234	>	{
1235	>	final Noop r = new Noop(m);
1236	>	final CompletableFuture<Void> f = m.runAsync(r);
1237		assertNull(f.join());
450	–	assertTrue(r.ran);
1238		checkCompletedNormally(f, null);
1239	<	assertEquals(1, exec.count.get());
1240	<	}
1239	>	r.assertInvoked();
1240	>	}}
1241
1242		/**
1243		* failing runAsync completes exceptionally after running Runnable
1244		*/
1245	<	public void testRunAsync3() {
1246	<	FailingNoop r = new FailingNoop();
1247	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r);
1248	<	checkCompletedWithWrappedCFException(f);
1249	<	assertTrue(r.ran);
1250	<	}
1245	>	public void testRunAsync_exceptionalCompletion() {
1246	>	ExecutionMode[] executionModes = {
1247	>	ExecutionMode.ASYNC,
1248	>	ExecutionMode.EXECUTOR,
1249	>	};
1250	>	for (ExecutionMode m : executionModes)
1251	>	{
1252	>	final FailingRunnable r = new FailingRunnable(m);
1253	>	final CompletableFuture<Void> f = m.runAsync(r);
1254	>	checkCompletedWithWrappedException(f, r.ex);
1255	>	r.assertInvoked();
1256	>	}}
1257	>
1258	>	@SuppressWarnings("FutureReturnValueIgnored")
1259	>	public void testRunAsync_rejectingExecutor() {
1260	>	CountingRejectingExecutor e = new CountingRejectingExecutor();
1261	>	try {
1262	>	CompletableFuture.runAsync(() -> {}, e);
1263	>	shouldThrow();
1264	>	} catch (Throwable t) {
1265	>	assertSame(e.ex, t);
1266	>	}
1267
1268	<	/**
466	<	* supplyAsync completes with result of supplier
467	<	*/
468	<	public void testSupplyAsync() {
469	<	CompletableFuture<Integer> f;
470	<	f = CompletableFuture.supplyAsync(supplyOne);
471	<	assertEquals(f.join(), one);
472	<	checkCompletedNormally(f, one);
1268	>	assertEquals(1, e.count.get());
1269		}
1270
1271		/**
1272	<	* supplyAsync with executor completes with result of supplier
1272	>	* supplyAsync completes with result of supplier
1273		*/
1274	<	public void testSupplyAsync2() {
1275	<	CompletableFuture<Integer> f;
1276	<	f = CompletableFuture.supplyAsync(supplyOne, new ThreadExecutor());
1277	<	assertEquals(f.join(), one);
1278	<	checkCompletedNormally(f, one);
1279	<	}
1274	>	public void testSupplyAsync_normalCompletion() {
1275	>	ExecutionMode[] executionModes = {
1276	>	ExecutionMode.ASYNC,
1277	>	ExecutionMode.EXECUTOR,
1278	>	};
1279	>	for (ExecutionMode m : executionModes)
1280	>	for (Integer v1 : new Integer[] { 1, null })
1281	>	{
1282	>	final IntegerSupplier r = new IntegerSupplier(m, v1);
1283	>	final CompletableFuture<Integer> f = m.supplyAsync(r);
1284	>	assertSame(v1, f.join());
1285	>	checkCompletedNormally(f, v1);
1286	>	r.assertInvoked();
1287	>	}}
1288
1289		/**
1290		* Failing supplyAsync completes exceptionally
1291		*/
1292	<	public void testSupplyAsync3() {
1293	<	FailingSupplier r = new FailingSupplier();
1294	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(r);
1295	<	checkCompletedWithWrappedCFException(f);
1296	<	assertTrue(r.ran);
1292	>	public void testSupplyAsync_exceptionalCompletion() {
1293	>	ExecutionMode[] executionModes = {
1294	>	ExecutionMode.ASYNC,
1295	>	ExecutionMode.EXECUTOR,
1296	>	};
1297	>	for (ExecutionMode m : executionModes)
1298	>	{
1299	>	FailingSupplier r = new FailingSupplier(m);
1300	>	CompletableFuture<Integer> f = m.supplyAsync(r);
1301	>	checkCompletedWithWrappedException(f, r.ex);
1302	>	r.assertInvoked();
1303	>	}}
1304	>
1305	>	@SuppressWarnings("FutureReturnValueIgnored")
1306	>	public void testSupplyAsync_rejectingExecutor() {
1307	>	CountingRejectingExecutor e = new CountingRejectingExecutor();
1308	>	try {
1309	>	CompletableFuture.supplyAsync(() -> null, e);
1310	>	shouldThrow();
1311	>	} catch (Throwable t) {
1312	>	assertSame(e.ex, t);
1313	>	}
1314	>
1315	>	assertEquals(1, e.count.get());
1316		}
1317
1318		// seq completion methods
#	Line 497 | Line 1320 | public class CompletableFutureTest exten
1320		/**
1321		* thenRun result completes normally after normal completion of source
1322		*/
1323	<	public void testThenRun() {
1324	<	CompletableFuture<Integer> f;
1325	<	CompletableFuture<Void> g;
1326	<	Noop r;
1327	<
1328	<	f = new CompletableFuture<>();
1329	<	g = f.thenRun(r = new Noop());
1330	<	f.complete(null);
1331	<	checkCompletedNormally(g, null);
1332	<	assertTrue(r.ran);
1333	<
1334	<	f = new CompletableFuture<>();
1335	<	f.complete(null);
1336	<	g = f.thenRun(r = new Noop());
1337	<	checkCompletedNormally(g, null);
1338	<	assertTrue(r.ran);
1339	<	}
1323	>	public void testThenRun_normalCompletion() {
1324	>	for (ExecutionMode m : ExecutionMode.values())
1325	>	for (Integer v1 : new Integer[] { 1, null })
1326	>	{
1327	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1328	>	final Noop[] rs = new Noop[6];
1329	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1330	>
1331	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1332	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1333	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1334	>	checkIncomplete(h0);
1335	>	checkIncomplete(h1);
1336	>	checkIncomplete(h2);
1337	>	assertTrue(f.complete(v1));
1338	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1339	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1340	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1341	>
1342	>	checkCompletedNormally(h0, null);
1343	>	checkCompletedNormally(h1, null);
1344	>	checkCompletedNormally(h2, null);
1345	>	checkCompletedNormally(h3, null);
1346	>	checkCompletedNormally(h4, null);
1347	>	checkCompletedNormally(h5, null);
1348	>	checkCompletedNormally(f, v1);
1349	>	for (Noop r : rs) r.assertInvoked();
1350	>	}}
1351
1352		/**
1353		* thenRun result completes exceptionally after exceptional
1354		* completion of source
1355		*/
1356	<	public void testThenRun2() {
1357	<	CompletableFuture<Integer> f;
1358	<	CompletableFuture<Void> g;
1359	<	Noop r;
1360	<
1361	<	f = new CompletableFuture<>();
1362	<	g = f.thenRun(r = new Noop());
1363	<	f.completeExceptionally(new CFException());
1364	<	checkCompletedWithWrappedCFException(g);
1365	<	assertFalse(r.ran);
1366	<
1367	<	f = new CompletableFuture<>();
1368	<	f.completeExceptionally(new CFException());
1369	<	g = f.thenRun(r = new Noop());
1370	<	checkCompletedWithWrappedCFException(g);
1371	<	assertFalse(r.ran);
1372	<	}
1356	>	public void testThenRun_exceptionalCompletion() {
1357	>	for (ExecutionMode m : ExecutionMode.values())
1358	>	{
1359	>	final CFException ex = new CFException();
1360	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1361	>	final Noop[] rs = new Noop[6];
1362	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1363	>
1364	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1365	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1366	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1367	>	checkIncomplete(h0);
1368	>	checkIncomplete(h1);
1369	>	checkIncomplete(h2);
1370	>	assertTrue(f.completeExceptionally(ex));
1371	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1372	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1373	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1374	>
1375	>	checkCompletedWithWrappedException(h0, ex);
1376	>	checkCompletedWithWrappedException(h1, ex);
1377	>	checkCompletedWithWrappedException(h2, ex);
1378	>	checkCompletedWithWrappedException(h3, ex);
1379	>	checkCompletedWithWrappedException(h4, ex);
1380	>	checkCompletedWithWrappedException(h5, ex);
1381	>	checkCompletedExceptionally(f, ex);
1382	>	for (Noop r : rs) r.assertNotInvoked();
1383	>	}}
1384
1385		/**
1386	<	* thenRun result completes exceptionally if action does
1386	>	* thenRun result completes exceptionally if source cancelled
1387		*/
1388	<	public void testThenRun3() {
1389	<	CompletableFuture<Integer> f;
1390	<	CompletableFuture<Void> g;
1391	<	FailingNoop r;
1392	<
1393	<	f = new CompletableFuture<>();
1394	<	g = f.thenRun(r = new FailingNoop());
1395	<	f.complete(null);
1396	<	checkCompletedWithWrappedCFException(g);
1397	<
1398	<	f = new CompletableFuture<>();
1399	<	f.complete(null);
1400	<	g = f.thenRun(r = new FailingNoop());
1401	<	checkCompletedWithWrappedCFException(g);
1402	<	}
1388	>	public void testThenRun_sourceCancelled() {
1389	>	for (ExecutionMode m : ExecutionMode.values())
1390	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1391	>	{
1392	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1393	>	final Noop[] rs = new Noop[6];
1394	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1395	>
1396	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1397	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1398	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1399	>	checkIncomplete(h0);
1400	>	checkIncomplete(h1);
1401	>	checkIncomplete(h2);
1402	>	assertTrue(f.cancel(mayInterruptIfRunning));
1403	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1404	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1405	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1406	>
1407	>	checkCompletedWithWrappedCancellationException(h0);
1408	>	checkCompletedWithWrappedCancellationException(h1);
1409	>	checkCompletedWithWrappedCancellationException(h2);
1410	>	checkCompletedWithWrappedCancellationException(h3);
1411	>	checkCompletedWithWrappedCancellationException(h4);
1412	>	checkCompletedWithWrappedCancellationException(h5);
1413	>	checkCancelled(f);
1414	>	for (Noop r : rs) r.assertNotInvoked();
1415	>	}}
1416
1417		/**
1418	<	* thenRun result completes exceptionally if source cancelled
1418	>	* thenRun result completes exceptionally if action does
1419		*/
1420	<	public void testThenRun4() {
1421	<	CompletableFuture<Integer> f;
1422	<	CompletableFuture<Void> g;
1423	<	Noop r;
1424	<
1425	<	f = new CompletableFuture<>();
1426	<	g = f.thenRun(r = new Noop());
1427	<	assertTrue(f.cancel(true));
1428	<	checkCompletedWithWrappedCancellationException(g);
1429	<
1430	<	f = new CompletableFuture<>();
1431	<	assertTrue(f.cancel(true));
1432	<	g = f.thenRun(r = new Noop());
1433	<	checkCompletedWithWrappedCancellationException(g);
1434	<	}
1420	>	public void testThenRun_actionFailed() {
1421	>	for (ExecutionMode m : ExecutionMode.values())
1422	>	for (Integer v1 : new Integer[] { 1, null })
1423	>	{
1424	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1425	>	final FailingRunnable[] rs = new FailingRunnable[6];
1426	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1427	>
1428	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1429	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1430	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1431	>	assertTrue(f.complete(v1));
1432	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1433	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1434	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1435	>
1436	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1437	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1438	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1439	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1440	>	checkCompletedWithWrappedException(h4, rs[4].ex);
1441	>	checkCompletedWithWrappedException(h5, rs[5].ex);
1442	>	checkCompletedNormally(f, v1);
1443	>	}}
1444
1445		/**
1446		* thenApply result completes normally after normal completion of source
1447		*/
1448	<	public void testThenApply() {
1449	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1450	<	CompletableFuture<Integer> g = f.thenApply(inc);
1451	<	f.complete(one);
1452	<	checkCompletedNormally(g, two);
1453	<	}
1448	>	public void testThenApply_normalCompletion() {
1449	>	for (ExecutionMode m : ExecutionMode.values())
1450	>	for (Integer v1 : new Integer[] { 1, null })
1451	>	{
1452	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1453	>	final IncFunction[] rs = new IncFunction[4];
1454	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1455	>
1456	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1457	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1458	>	checkIncomplete(h0);
1459	>	checkIncomplete(h1);
1460	>	assertTrue(f.complete(v1));
1461	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1462	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1463	>
1464	>	checkCompletedNormally(h0, inc(v1));
1465	>	checkCompletedNormally(h1, inc(v1));
1466	>	checkCompletedNormally(h2, inc(v1));
1467	>	checkCompletedNormally(h3, inc(v1));
1468	>	checkCompletedNormally(f, v1);
1469	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1470	>	}}
1471
1472		/**
1473		* thenApply result completes exceptionally after exceptional
1474		* completion of source
1475		*/
1476	<	public void testThenApply2() {
1477	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1478	<	CompletableFuture<Integer> g = f.thenApply(inc);
1479	<	f.completeExceptionally(new CFException());
1480	<	checkCompletedWithWrappedCFException(g);
1481	<	}
1476	>	public void testThenApply_exceptionalCompletion() {
1477	>	for (ExecutionMode m : ExecutionMode.values())
1478	>	{
1479	>	final CFException ex = new CFException();
1480	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1481	>	final IncFunction[] rs = new IncFunction[4];
1482	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1483	>
1484	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1485	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1486	>	assertTrue(f.completeExceptionally(ex));
1487	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1488	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1489	>
1490	>	checkCompletedWithWrappedException(h0, ex);
1491	>	checkCompletedWithWrappedException(h1, ex);
1492	>	checkCompletedWithWrappedException(h2, ex);
1493	>	checkCompletedWithWrappedException(h3, ex);
1494	>	checkCompletedExceptionally(f, ex);
1495	>	for (IncFunction r : rs) r.assertNotInvoked();
1496	>	}}
1497
1498		/**
1499	<	* thenApply result completes exceptionally if action does
1499	>	* thenApply result completes exceptionally if source cancelled
1500		*/
1501	<	public void testThenApply3() {
1502	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1503	<	CompletableFuture<Integer> g = f.thenApply(new FailingFunction());
1504	<	f.complete(one);
1505	<	checkCompletedWithWrappedCFException(g);
1506	<	}
1501	>	public void testThenApply_sourceCancelled() {
1502	>	for (ExecutionMode m : ExecutionMode.values())
1503	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1504	>	{
1505	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1506	>	final IncFunction[] rs = new IncFunction[4];
1507	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1508	>
1509	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1510	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1511	>	assertTrue(f.cancel(mayInterruptIfRunning));
1512	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1513	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1514	>
1515	>	checkCompletedWithWrappedCancellationException(h0);
1516	>	checkCompletedWithWrappedCancellationException(h1);
1517	>	checkCompletedWithWrappedCancellationException(h2);
1518	>	checkCompletedWithWrappedCancellationException(h3);
1519	>	checkCancelled(f);
1520	>	for (IncFunction r : rs) r.assertNotInvoked();
1521	>	}}
1522
1523		/**
1524	<	* thenApply result completes exceptionally if source cancelled
1524	>	* thenApply result completes exceptionally if action does
1525		*/
1526	<	public void testThenApply4() {
1527	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1528	<	CompletableFuture<Integer> g = f.thenApply(inc);
1529	<	assertTrue(f.cancel(true));
1530	<	checkCompletedWithWrappedCancellationException(g);
1531	<	}
1526	>	public void testThenApply_actionFailed() {
1527	>	for (ExecutionMode m : ExecutionMode.values())
1528	>	for (Integer v1 : new Integer[] { 1, null })
1529	>	{
1530	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1531	>	final FailingFunction[] rs = new FailingFunction[4];
1532	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1533	>
1534	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1535	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1536	>	assertTrue(f.complete(v1));
1537	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1538	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1539	>
1540	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1541	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1542	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1543	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1544	>	checkCompletedNormally(f, v1);
1545	>	}}
1546
1547		/**
1548		* thenAccept result completes normally after normal completion of source
1549		*/
1550	<	public void testThenAccept() {
1551	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1552	<	IncAction r = new IncAction();
1553	<	CompletableFuture<Void> g = f.thenAccept(r);
1554	<	f.complete(one);
1555	<	checkCompletedNormally(g, null);
1556	<	assertEquals(r.value, 2);
1557	<	}
1550	>	public void testThenAccept_normalCompletion() {
1551	>	for (ExecutionMode m : ExecutionMode.values())
1552	>	for (Integer v1 : new Integer[] { 1, null })
1553	>	{
1554	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1555	>	final NoopConsumer[] rs = new NoopConsumer[4];
1556	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1557	>
1558	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1559	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1560	>	checkIncomplete(h0);
1561	>	checkIncomplete(h1);
1562	>	assertTrue(f.complete(v1));
1563	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1564	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1565	>
1566	>	checkCompletedNormally(h0, null);
1567	>	checkCompletedNormally(h1, null);
1568	>	checkCompletedNormally(h2, null);
1569	>	checkCompletedNormally(h3, null);
1570	>	checkCompletedNormally(f, v1);
1571	>	for (NoopConsumer r : rs) r.assertValue(v1);
1572	>	}}
1573
1574		/**
1575		* thenAccept result completes exceptionally after exceptional
1576		* completion of source
1577		*/
1578	<	public void testThenAccept2() {
1579	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1580	<	IncAction r = new IncAction();
1581	<	CompletableFuture<Void> g = f.thenAccept(r);
1582	<	f.completeExceptionally(new CFException());
1583	<	checkCompletedWithWrappedCFException(g);
1584	<	}
1578	>	public void testThenAccept_exceptionalCompletion() {
1579	>	for (ExecutionMode m : ExecutionMode.values())
1580	>	{
1581	>	final CFException ex = new CFException();
1582	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1583	>	final NoopConsumer[] rs = new NoopConsumer[4];
1584	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1585	>
1586	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1587	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1588	>	assertTrue(f.completeExceptionally(ex));
1589	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1590	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1591	>
1592	>	checkCompletedWithWrappedException(h0, ex);
1593	>	checkCompletedWithWrappedException(h1, ex);
1594	>	checkCompletedWithWrappedException(h2, ex);
1595	>	checkCompletedWithWrappedException(h3, ex);
1596	>	checkCompletedExceptionally(f, ex);
1597	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1598	>	}}
1599
1600		/**
1601	<	* thenAccept result completes exceptionally if action does
1601	>	* thenAccept result completes exceptionally if source cancelled
1602		*/
1603	<	public void testThenAccept3() {
1604	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1605	<	FailingConsumer r = new FailingConsumer();
1606	<	CompletableFuture<Void> g = f.thenAccept(r);
1607	<	f.complete(one);
1608	<	checkCompletedWithWrappedCFException(g);
1609	<	assertTrue(r.ran);
1610	<	}
1603	>	public void testThenAccept_sourceCancelled() {
1604	>	for (ExecutionMode m : ExecutionMode.values())
1605	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1606	>	{
1607	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1608	>	final NoopConsumer[] rs = new NoopConsumer[4];
1609	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1610	>
1611	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1612	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1613	>	assertTrue(f.cancel(mayInterruptIfRunning));
1614	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1615	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1616	>
1617	>	checkCompletedWithWrappedCancellationException(h0);
1618	>	checkCompletedWithWrappedCancellationException(h1);
1619	>	checkCompletedWithWrappedCancellationException(h2);
1620	>	checkCompletedWithWrappedCancellationException(h3);
1621	>	checkCancelled(f);
1622	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1623	>	}}
1624
1625		/**
1626	<	* thenAccept result completes exceptionally if source cancelled
1626	>	* thenAccept result completes exceptionally if action does
1627		*/
1628	<	public void testThenAccept4() {
1629	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1630	<	IncAction r = new IncAction();
1631	<	CompletableFuture<Void> g = f.thenAccept(r);
1632	<	assertTrue(f.cancel(true));
1633	<	checkCompletedWithWrappedCancellationException(g);
1634	<	}
1635	<
1628	>	public void testThenAccept_actionFailed() {
1629	>	for (ExecutionMode m : ExecutionMode.values())
1630	>	for (Integer v1 : new Integer[] { 1, null })
1631	>	{
1632	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1633	>	final FailingConsumer[] rs = new FailingConsumer[4];
1634	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1635	>
1636	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1637	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1638	>	assertTrue(f.complete(v1));
1639	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1640	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1641	>
1642	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1643	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1644	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1645	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1646	>	checkCompletedNormally(f, v1);
1647	>	}}
1648
1649		/**
1650		* thenCombine result completes normally after normal completion
1651		* of sources
1652		*/
1653	<	public void testThenCombine() {
1654	<	CompletableFuture<Integer> f, g, h;
1655	<
1656	<	f = new CompletableFuture<>();
1657	<	g = new CompletableFuture<>();
1658	<	h = f.thenCombine(g, subtract);
1659	<	f.complete(3);
1660	<	checkIncomplete(h);
1661	<	g.complete(1);
1662	<	checkCompletedNormally(h, 2);
1663	<
1664	<	f = new CompletableFuture<>();
1665	<	g = new CompletableFuture<>();
1666	<	h = f.thenCombine(g, subtract);
1667	<	g.complete(1);
1668	<	checkIncomplete(h);
1669	<	f.complete(3);
1670	<	checkCompletedNormally(h, 2);
1671	<
1672	<	f = new CompletableFuture<>();
1673	<	g = new CompletableFuture<>();
1674	<	g.complete(1);
1675	<	f.complete(3);
1676	<	h = f.thenCombine(g, subtract);
1677	<	checkCompletedNormally(h, 2);
1678	<	}
1653	>	public void testThenCombine_normalCompletion() {
1654	>	for (ExecutionMode m : ExecutionMode.values())
1655	>	for (boolean fFirst : new boolean[] { true, false })
1656	>	for (Integer v1 : new Integer[] { 1, null })
1657	>	for (Integer v2 : new Integer[] { 2, null })
1658	>	{
1659	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1660	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1661	>	final SubtractFunction[] rs = new SubtractFunction[6];
1662	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1663	>
1664	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1665	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1666	>	final Integer w1 =  fFirst ? v1 : v2;
1667	>	final Integer w2 = !fFirst ? v1 : v2;
1668	>
1669	>	final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1670	>	final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1671	>	assertTrue(fst.complete(w1));
1672	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1673	>	final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1674	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1675	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1676	>	checkCompletedNormally(h1, subtract(w1, w1));
1677	>	checkCompletedNormally(h3, subtract(w1, w1));
1678	>	rs[1].assertValue(subtract(w1, w1));
1679	>	rs[3].assertValue(subtract(w1, w1));
1680	>	assertTrue(snd.complete(w2));
1681	>	final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1682	>
1683	>	checkCompletedNormally(h0, subtract(v1, v2));
1684	>	checkCompletedNormally(h2, subtract(v1, v2));
1685	>	checkCompletedNormally(h4, subtract(v1, v2));
1686	>	rs[0].assertValue(subtract(v1, v2));
1687	>	rs[2].assertValue(subtract(v1, v2));
1688	>	rs[4].assertValue(subtract(v1, v2));
1689	>
1690	>	checkCompletedNormally(f, v1);
1691	>	checkCompletedNormally(g, v2);
1692	>	}}
1693
1694		/**
1695		* thenCombine result completes exceptionally after exceptional
1696		* completion of either source
1697		*/
1698	<	public void testThenCombine2() {
1699	<	CompletableFuture<Integer> f, g, h;
1700	<
1701	<	f = new CompletableFuture<>();
1702	<	g = new CompletableFuture<>();
1703	<	h = f.thenCombine(g, subtract);
1704	<	f.completeExceptionally(new CFException());
1705	<	checkIncomplete(h);
1706	<	g.complete(1);
1707	<	checkCompletedWithWrappedCFException(h);
1708	<
1709	<	f = new CompletableFuture<>();
1710	<	g = new CompletableFuture<>();
1711	<	h = f.thenCombine(g, subtract);
1712	<	g.completeExceptionally(new CFException());
1713	<	checkIncomplete(h);
1714	<	f.complete(3);
1715	<	checkCompletedWithWrappedCFException(h);
1716	<
1717	<	f = new CompletableFuture<>();
1718	<	g = new CompletableFuture<>();
1719	<	f.complete(3);
1720	<	g.completeExceptionally(new CFException());
1721	<	h = f.thenCombine(g, subtract);
1722	<	checkCompletedWithWrappedCFException(h);
1723	<
1724	<	f = new CompletableFuture<>();
1725	<	g = new CompletableFuture<>();
1726	<	f.completeExceptionally(new CFException());
1727	<	g.complete(3);
1728	<	h = f.thenCombine(g, subtract);
1729	<	checkCompletedWithWrappedCFException(h);
1730	<	}
1698	>	public void testThenCombine_exceptionalCompletion() throws Throwable {
1699	>	for (ExecutionMode m : ExecutionMode.values())
1700	>	for (boolean fFirst : new boolean[] { true, false })
1701	>	for (boolean failFirst : new boolean[] { true, false })
1702	>	for (Integer v1 : new Integer[] { 1, null })
1703	>	{
1704	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1705	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1706	>	final CFException ex = new CFException();
1707	>	final SubtractFunction r1 = new SubtractFunction(m);
1708	>	final SubtractFunction r2 = new SubtractFunction(m);
1709	>	final SubtractFunction r3 = new SubtractFunction(m);
1710	>
1711	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1712	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1713	>	final Callable<Boolean> complete1 = failFirst ?
1714	>	() -> fst.completeExceptionally(ex) :
1715	>	() -> fst.complete(v1);
1716	>	final Callable<Boolean> complete2 = failFirst ?
1717	>	() -> snd.complete(v1) :
1718	>	() -> snd.completeExceptionally(ex);
1719	>
1720	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1721	>	assertTrue(complete1.call());
1722	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1723	>	checkIncomplete(h1);
1724	>	checkIncomplete(h2);
1725	>	assertTrue(complete2.call());
1726	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1727	>
1728	>	checkCompletedWithWrappedException(h1, ex);
1729	>	checkCompletedWithWrappedException(h2, ex);
1730	>	checkCompletedWithWrappedException(h3, ex);
1731	>	r1.assertNotInvoked();
1732	>	r2.assertNotInvoked();
1733	>	r3.assertNotInvoked();
1734	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1735	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1736	>	}}
1737
1738		/**
1739	<	* thenCombine result completes exceptionally if action does
1739	>	* thenCombine result completes exceptionally if either source cancelled
1740		*/
1741	<	public void testThenCombine3() {
1742	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1743	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1744	<	FailingBiFunction r = new FailingBiFunction();
1745	<	CompletableFuture<Integer> g = f.thenCombine(f2, r);
1746	<	f.complete(one);
1747	<	checkIncomplete(g);
1748	<	assertFalse(r.ran);
1749	<	f2.complete(two);
1750	<	checkCompletedWithWrappedCFException(g);
1751	<	assertTrue(r.ran);
1752	<	}
1741	>	public void testThenCombine_sourceCancelled() throws Throwable {
1742	>	for (ExecutionMode m : ExecutionMode.values())
1743	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1744	>	for (boolean fFirst : new boolean[] { true, false })
1745	>	for (boolean failFirst : new boolean[] { true, false })
1746	>	for (Integer v1 : new Integer[] { 1, null })
1747	>	{
1748	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1749	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1750	>	final SubtractFunction r1 = new SubtractFunction(m);
1751	>	final SubtractFunction r2 = new SubtractFunction(m);
1752	>	final SubtractFunction r3 = new SubtractFunction(m);
1753	>
1754	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1755	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1756	>	final Callable<Boolean> complete1 = failFirst ?
1757	>	() -> fst.cancel(mayInterruptIfRunning) :
1758	>	() -> fst.complete(v1);
1759	>	final Callable<Boolean> complete2 = failFirst ?
1760	>	() -> snd.complete(v1) :
1761	>	() -> snd.cancel(mayInterruptIfRunning);
1762	>
1763	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1764	>	assertTrue(complete1.call());
1765	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1766	>	checkIncomplete(h1);
1767	>	checkIncomplete(h2);
1768	>	assertTrue(complete2.call());
1769	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1770	>
1771	>	checkCompletedWithWrappedCancellationException(h1);
1772	>	checkCompletedWithWrappedCancellationException(h2);
1773	>	checkCompletedWithWrappedCancellationException(h3);
1774	>	r1.assertNotInvoked();
1775	>	r2.assertNotInvoked();
1776	>	r3.assertNotInvoked();
1777	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1778	>	checkCancelled(failFirst ? fst : snd);
1779	>	}}
1780
1781		/**
1782	<	* thenCombine result completes exceptionally if either source cancelled
1782	>	* thenCombine result completes exceptionally if action does
1783		*/
1784	<	public void testThenCombine4() {
1785	<	CompletableFuture<Integer> f, g, h;
1786	<
1787	<	f = new CompletableFuture<>();
1788	<	g = new CompletableFuture<>();
1789	<	h = f.thenCombine(g, subtract);
1790	<	assertTrue(f.cancel(true));
1791	<	checkIncomplete(h);
1792	<	g.complete(1);
1793	<	checkCompletedWithWrappedCancellationException(h);
1794	<
1795	<	f = new CompletableFuture<>();
1796	<	g = new CompletableFuture<>();
1797	<	h = f.thenCombine(g, subtract);
1798	<	assertTrue(g.cancel(true));
1799	<	checkIncomplete(h);
1800	<	f.complete(3);
1801	<	checkCompletedWithWrappedCancellationException(h);
1802	<
1803	<	f = new CompletableFuture<>();
1804	<	g = new CompletableFuture<>();
1805	<	assertTrue(f.cancel(true));
1806	<	assertTrue(g.cancel(true));
1807	<	h = f.thenCombine(g, subtract);
1808	<	checkCompletedWithWrappedCancellationException(h);
1809	<	}
1784	>	public void testThenCombine_actionFailed() {
1785	>	for (ExecutionMode m : ExecutionMode.values())
1786	>	for (boolean fFirst : new boolean[] { true, false })
1787	>	for (Integer v1 : new Integer[] { 1, null })
1788	>	for (Integer v2 : new Integer[] { 2, null })
1789	>	{
1790	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1791	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1792	>	final FailingBiFunction r1 = new FailingBiFunction(m);
1793	>	final FailingBiFunction r2 = new FailingBiFunction(m);
1794	>	final FailingBiFunction r3 = new FailingBiFunction(m);
1795	>
1796	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1797	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1798	>	final Integer w1 =  fFirst ? v1 : v2;
1799	>	final Integer w2 = !fFirst ? v1 : v2;
1800	>
1801	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1802	>	assertTrue(fst.complete(w1));
1803	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1804	>	assertTrue(snd.complete(w2));
1805	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1806	>
1807	>	checkCompletedWithWrappedException(h1, r1.ex);
1808	>	checkCompletedWithWrappedException(h2, r2.ex);
1809	>	checkCompletedWithWrappedException(h3, r3.ex);
1810	>	r1.assertInvoked();
1811	>	r2.assertInvoked();
1812	>	r3.assertInvoked();
1813	>	checkCompletedNormally(f, v1);
1814	>	checkCompletedNormally(g, v2);
1815	>	}}
1816
1817		/**
1818		* thenAcceptBoth result completes normally after normal
1819		* completion of sources
1820		*/
1821	<	public void testThenAcceptBoth() {
1822	<	CompletableFuture<Integer> f, g;
1823	<	CompletableFuture<Void> h;
1824	<	SubtractAction r;
1825	<
1826	<	f = new CompletableFuture<>();
1827	<	g = new CompletableFuture<>();
1828	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1829	<	f.complete(3);
1830	<	checkIncomplete(h);
1831	<	g.complete(1);
1832	<	checkCompletedNormally(h, null);
1833	<	assertEquals(r.value, 2);
1834	<
1835	<	f = new CompletableFuture<>();
1836	<	g = new CompletableFuture<>();
1837	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1838	<	g.complete(1);
1839	<	checkIncomplete(h);
1840	<	f.complete(3);
1841	<	checkCompletedNormally(h, null);
1842	<	assertEquals(r.value, 2);
1843	<
1844	<	f = new CompletableFuture<>();
1845	<	g = new CompletableFuture<>();
1846	<	g.complete(1);
1847	<	f.complete(3);
1848	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1849	<	checkCompletedNormally(h, null);
1850	<	assertEquals(r.value, 2);
1851	<	}
1821	>	public void testThenAcceptBoth_normalCompletion() {
1822	>	for (ExecutionMode m : ExecutionMode.values())
1823	>	for (boolean fFirst : new boolean[] { true, false })
1824	>	for (Integer v1 : new Integer[] { 1, null })
1825	>	for (Integer v2 : new Integer[] { 2, null })
1826	>	{
1827	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1828	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1829	>	final SubtractAction r1 = new SubtractAction(m);
1830	>	final SubtractAction r2 = new SubtractAction(m);
1831	>	final SubtractAction r3 = new SubtractAction(m);
1832	>
1833	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1834	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1835	>	final Integer w1 =  fFirst ? v1 : v2;
1836	>	final Integer w2 = !fFirst ? v1 : v2;
1837	>
1838	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1839	>	assertTrue(fst.complete(w1));
1840	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1841	>	checkIncomplete(h1);
1842	>	checkIncomplete(h2);
1843	>	r1.assertNotInvoked();
1844	>	r2.assertNotInvoked();
1845	>	assertTrue(snd.complete(w2));
1846	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1847	>
1848	>	checkCompletedNormally(h1, null);
1849	>	checkCompletedNormally(h2, null);
1850	>	checkCompletedNormally(h3, null);
1851	>	r1.assertValue(subtract(v1, v2));
1852	>	r2.assertValue(subtract(v1, v2));
1853	>	r3.assertValue(subtract(v1, v2));
1854	>	checkCompletedNormally(f, v1);
1855	>	checkCompletedNormally(g, v2);
1856	>	}}
1857
1858		/**
1859		* thenAcceptBoth result completes exceptionally after exceptional
1860		* completion of either source
1861		*/
1862	<	public void testThenAcceptBoth2() {
1863	<	CompletableFuture<Integer> f, g;
1864	<	CompletableFuture<Void> h;
1865	<	SubtractAction r;
1866	<
1867	<	f = new CompletableFuture<>();
1868	<	g = new CompletableFuture<>();
1869	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1870	<	f.completeExceptionally(new CFException());
1871	<	checkIncomplete(h);
1872	<	g.complete(1);
1873	<	checkCompletedWithWrappedCFException(h);
1874	<
1875	<	f = new CompletableFuture<>();
1876	<	g = new CompletableFuture<>();
1877	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1878	<	g.completeExceptionally(new CFException());
1879	<	checkIncomplete(h);
1880	<	f.complete(3);
1881	<	checkCompletedWithWrappedCFException(h);
1882	<
1883	<	f = new CompletableFuture<>();
1884	<	g = new CompletableFuture<>();
1885	<	f.complete(3);
1886	<	g.completeExceptionally(new CFException());
1887	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1888	<	checkCompletedWithWrappedCFException(h);
1889	<
1890	<	f = new CompletableFuture<>();
1891	<	g = new CompletableFuture<>();
1892	<	f.completeExceptionally(new CFException());
1893	<	g.complete(3);
1894	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1895	<	checkCompletedWithWrappedCFException(h);
1896	<	}
1862	>	public void testThenAcceptBoth_exceptionalCompletion() throws Throwable {
1863	>	for (ExecutionMode m : ExecutionMode.values())
1864	>	for (boolean fFirst : new boolean[] { true, false })
1865	>	for (boolean failFirst : new boolean[] { true, false })
1866	>	for (Integer v1 : new Integer[] { 1, null })
1867	>	{
1868	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1869	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1870	>	final CFException ex = new CFException();
1871	>	final SubtractAction r1 = new SubtractAction(m);
1872	>	final SubtractAction r2 = new SubtractAction(m);
1873	>	final SubtractAction r3 = new SubtractAction(m);
1874	>
1875	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1876	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1877	>	final Callable<Boolean> complete1 = failFirst ?
1878	>	() -> fst.completeExceptionally(ex) :
1879	>	() -> fst.complete(v1);
1880	>	final Callable<Boolean> complete2 = failFirst ?
1881	>	() -> snd.complete(v1) :
1882	>	() -> snd.completeExceptionally(ex);
1883	>
1884	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1885	>	assertTrue(complete1.call());
1886	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1887	>	checkIncomplete(h1);
1888	>	checkIncomplete(h2);
1889	>	assertTrue(complete2.call());
1890	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1891	>
1892	>	checkCompletedWithWrappedException(h1, ex);
1893	>	checkCompletedWithWrappedException(h2, ex);
1894	>	checkCompletedWithWrappedException(h3, ex);
1895	>	r1.assertNotInvoked();
1896	>	r2.assertNotInvoked();
1897	>	r3.assertNotInvoked();
1898	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1899	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1900	>	}}
1901
1902		/**
1903	<	* thenAcceptBoth result completes exceptionally if action does
1903	>	* thenAcceptBoth result completes exceptionally if either source cancelled
1904		*/
1905	<	public void testThenAcceptBoth3() {
1906	<	CompletableFuture<Integer> f, g;
1907	<	CompletableFuture<Void> h;
1908	<	FailingBiConsumer r;
1909	<
1910	<	f = new CompletableFuture<>();
1911	<	g = new CompletableFuture<>();
1912	<	h = f.thenAcceptBoth(g, r = new FailingBiConsumer());
1913	<	f.complete(3);
1914	<	checkIncomplete(h);
1915	<	g.complete(1);
1916	<	checkCompletedWithWrappedCFException(h);
1917	<
1918	<	f = new CompletableFuture<>();
1919	<	g = new CompletableFuture<>();
1920	<	f.complete(3);
1921	<	g.complete(1);
1922	<	h = f.thenAcceptBoth(g, r = new FailingBiConsumer());
1923	<	checkCompletedWithWrappedCFException(h);
1924	<	}
1905	>	public void testThenAcceptBoth_sourceCancelled() throws Throwable {
1906	>	for (ExecutionMode m : ExecutionMode.values())
1907	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1908	>	for (boolean fFirst : new boolean[] { true, false })
1909	>	for (boolean failFirst : new boolean[] { true, false })
1910	>	for (Integer v1 : new Integer[] { 1, null })
1911	>	{
1912	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1913	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1914	>	final SubtractAction r1 = new SubtractAction(m);
1915	>	final SubtractAction r2 = new SubtractAction(m);
1916	>	final SubtractAction r3 = new SubtractAction(m);
1917	>
1918	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1919	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1920	>	final Callable<Boolean> complete1 = failFirst ?
1921	>	() -> fst.cancel(mayInterruptIfRunning) :
1922	>	() -> fst.complete(v1);
1923	>	final Callable<Boolean> complete2 = failFirst ?
1924	>	() -> snd.complete(v1) :
1925	>	() -> snd.cancel(mayInterruptIfRunning);
1926	>
1927	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1928	>	assertTrue(complete1.call());
1929	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1930	>	checkIncomplete(h1);
1931	>	checkIncomplete(h2);
1932	>	assertTrue(complete2.call());
1933	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1934	>
1935	>	checkCompletedWithWrappedCancellationException(h1);
1936	>	checkCompletedWithWrappedCancellationException(h2);
1937	>	checkCompletedWithWrappedCancellationException(h3);
1938	>	r1.assertNotInvoked();
1939	>	r2.assertNotInvoked();
1940	>	r3.assertNotInvoked();
1941	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1942	>	checkCancelled(failFirst ? fst : snd);
1943	>	}}
1944
1945		/**
1946	<	* thenAcceptBoth result completes exceptionally if either source cancelled
1946	>	* thenAcceptBoth result completes exceptionally if action does
1947		*/
1948	<	public void testThenAcceptBoth4() {
1949	<	CompletableFuture<Integer> f, g;
1950	<	CompletableFuture<Void> h;
1951	<	SubtractAction r;
1952	<
1953	<	f = new CompletableFuture<>();
1954	<	g = new CompletableFuture<>();
1955	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1956	<	assertTrue(f.cancel(true));
1957	<	checkIncomplete(h);
1958	<	g.complete(1);
1959	<	checkCompletedWithWrappedCancellationException(h);
1960	<
1961	<	f = new CompletableFuture<>();
1962	<	g = new CompletableFuture<>();
1963	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1964	<	assertTrue(g.cancel(true));
1965	<	checkIncomplete(h);
1966	<	f.complete(3);
1967	<	checkCompletedWithWrappedCancellationException(h);
1968	<
1969	<	f = new CompletableFuture<>();
1970	<	g = new CompletableFuture<>();
1971	<	f.complete(3);
1972	<	assertTrue(g.cancel(true));
1973	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1974	<	checkCompletedWithWrappedCancellationException(h);
1975	<
1976	<	f = new CompletableFuture<>();
1977	<	g = new CompletableFuture<>();
1978	<	assertTrue(f.cancel(true));
1979	<	g.complete(3);
917	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
918	<	checkCompletedWithWrappedCancellationException(h);
919	<	}
1948	>	public void testThenAcceptBoth_actionFailed() {
1949	>	for (ExecutionMode m : ExecutionMode.values())
1950	>	for (boolean fFirst : new boolean[] { true, false })
1951	>	for (Integer v1 : new Integer[] { 1, null })
1952	>	for (Integer v2 : new Integer[] { 2, null })
1953	>	{
1954	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1955	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1956	>	final FailingBiConsumer r1 = new FailingBiConsumer(m);
1957	>	final FailingBiConsumer r2 = new FailingBiConsumer(m);
1958	>	final FailingBiConsumer r3 = new FailingBiConsumer(m);
1959	>
1960	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1961	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1962	>	final Integer w1 =  fFirst ? v1 : v2;
1963	>	final Integer w2 = !fFirst ? v1 : v2;
1964	>
1965	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1966	>	assertTrue(fst.complete(w1));
1967	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1968	>	assertTrue(snd.complete(w2));
1969	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1970	>
1971	>	checkCompletedWithWrappedException(h1, r1.ex);
1972	>	checkCompletedWithWrappedException(h2, r2.ex);
1973	>	checkCompletedWithWrappedException(h3, r3.ex);
1974	>	r1.assertInvoked();
1975	>	r2.assertInvoked();
1976	>	r3.assertInvoked();
1977	>	checkCompletedNormally(f, v1);
1978	>	checkCompletedNormally(g, v2);
1979	>	}}
1980
1981		/**
1982		* runAfterBoth result completes normally after normal
1983		* completion of sources
1984		*/
1985	<	public void testRunAfterBoth() {
1986	<	CompletableFuture<Integer> f, g;
1987	<	CompletableFuture<Void> h;
1988	<	Noop r;
1989	<
1990	<	f = new CompletableFuture<>();
1991	<	g = new CompletableFuture<>();
1992	<	h = f.runAfterBoth(g, r = new Noop());
1993	<	f.complete(3);
1994	<	checkIncomplete(h);
1995	<	g.complete(1);
1996	<	checkCompletedNormally(h, null);
1997	<	assertTrue(r.ran);
1998	<
1999	<	f = new CompletableFuture<>();
2000	<	g = new CompletableFuture<>();
2001	<	h = f.runAfterBoth(g, r = new Noop());
2002	<	g.complete(1);
2003	<	checkIncomplete(h);
2004	<	f.complete(3);
2005	<	checkCompletedNormally(h, null);
2006	<	assertTrue(r.ran);
2007	<
2008	<	f = new CompletableFuture<>();
2009	<	g = new CompletableFuture<>();
2010	<	g.complete(1);
2011	<	f.complete(3);
2012	<	h = f.runAfterBoth(g, r = new Noop());
2013	<	checkCompletedNormally(h, null);
2014	<	assertTrue(r.ran);
2015	<	}
1985	>	public void testRunAfterBoth_normalCompletion() {
1986	>	for (ExecutionMode m : ExecutionMode.values())
1987	>	for (boolean fFirst : new boolean[] { true, false })
1988	>	for (Integer v1 : new Integer[] { 1, null })
1989	>	for (Integer v2 : new Integer[] { 2, null })
1990	>	{
1991	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1992	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1993	>	final Noop r1 = new Noop(m);
1994	>	final Noop r2 = new Noop(m);
1995	>	final Noop r3 = new Noop(m);
1996	>
1997	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1998	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1999	>	final Integer w1 =  fFirst ? v1 : v2;
2000	>	final Integer w2 = !fFirst ? v1 : v2;
2001	>
2002	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2003	>	assertTrue(fst.complete(w1));
2004	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2005	>	checkIncomplete(h1);
2006	>	checkIncomplete(h2);
2007	>	r1.assertNotInvoked();
2008	>	r2.assertNotInvoked();
2009	>	assertTrue(snd.complete(w2));
2010	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2011	>
2012	>	checkCompletedNormally(h1, null);
2013	>	checkCompletedNormally(h2, null);
2014	>	checkCompletedNormally(h3, null);
2015	>	r1.assertInvoked();
2016	>	r2.assertInvoked();
2017	>	r3.assertInvoked();
2018	>	checkCompletedNormally(f, v1);
2019	>	checkCompletedNormally(g, v2);
2020	>	}}
2021
2022		/**
2023		* runAfterBoth result completes exceptionally after exceptional
2024		* completion of either source
2025		*/
2026	<	public void testRunAfterBoth2() {
2027	<	CompletableFuture<Integer> f, g;
2028	<	CompletableFuture<Void> h;
2029	<	Noop r;
2030	<
2031	<	f = new CompletableFuture<>();
2032	<	g = new CompletableFuture<>();
2033	<	h = f.runAfterBoth(g, r = new Noop());
2034	<	f.completeExceptionally(new CFException());
2035	<	checkIncomplete(h);
2036	<	g.complete(1);
2037	<	checkCompletedWithWrappedCFException(h);
2038	<	assertFalse(r.ran);
2039	<
2040	<	f = new CompletableFuture<>();
2041	<	g = new CompletableFuture<>();
2042	<	h = f.runAfterBoth(g, r = new Noop());
2043	<	g.completeExceptionally(new CFException());
2044	<	checkIncomplete(h);
2045	<	f.complete(3);
2046	<	checkCompletedWithWrappedCFException(h);
2047	<	assertFalse(r.ran);
2048	<
2049	<	f = new CompletableFuture<>();
2050	<	g = new CompletableFuture<>();
2051	<	g.completeExceptionally(new CFException());
2052	<	f.complete(3);
2053	<	h = f.runAfterBoth(g, r = new Noop());
2054	<	checkCompletedWithWrappedCFException(h);
2055	<	assertFalse(r.ran);
2056	<
2057	<	f = new CompletableFuture<>();
2058	<	g = new CompletableFuture<>();
2059	<	f.completeExceptionally(new CFException());
2060	<	g.complete(1);
2061	<	h = f.runAfterBoth(g, r = new Noop());
2062	<	checkCompletedWithWrappedCFException(h);
2063	<	assertFalse(r.ran);
2064	<	}
2026	>	public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
2027	>	for (ExecutionMode m : ExecutionMode.values())
2028	>	for (boolean fFirst : new boolean[] { true, false })
2029	>	for (boolean failFirst : new boolean[] { true, false })
2030	>	for (Integer v1 : new Integer[] { 1, null })
2031	>	{
2032	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2033	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2034	>	final CFException ex = new CFException();
2035	>	final Noop r1 = new Noop(m);
2036	>	final Noop r2 = new Noop(m);
2037	>	final Noop r3 = new Noop(m);
2038	>
2039	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2040	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2041	>	final Callable<Boolean> complete1 = failFirst ?
2042	>	() -> fst.completeExceptionally(ex) :
2043	>	() -> fst.complete(v1);
2044	>	final Callable<Boolean> complete2 = failFirst ?
2045	>	() -> snd.complete(v1) :
2046	>	() -> snd.completeExceptionally(ex);
2047	>
2048	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2049	>	assertTrue(complete1.call());
2050	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2051	>	checkIncomplete(h1);
2052	>	checkIncomplete(h2);
2053	>	assertTrue(complete2.call());
2054	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2055	>
2056	>	checkCompletedWithWrappedException(h1, ex);
2057	>	checkCompletedWithWrappedException(h2, ex);
2058	>	checkCompletedWithWrappedException(h3, ex);
2059	>	r1.assertNotInvoked();
2060	>	r2.assertNotInvoked();
2061	>	r3.assertNotInvoked();
2062	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2063	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
2064	>	}}
2065
2066		/**
2067	<	* runAfterBoth result completes exceptionally if action does
2067	>	* runAfterBoth result completes exceptionally if either source cancelled
2068		*/
2069	<	public void testRunAfterBoth3() {
2070	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2071	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2072	<	FailingNoop r = new FailingNoop();
2073	<	CompletableFuture<Void> g = f.runAfterBoth(f2, r);
2074	<	f.complete(one);
2075	<	checkIncomplete(g);
2076	<	f2.complete(two);
2077	<	checkCompletedWithWrappedCFException(g);
2078	<	}
2069	>	public void testRunAfterBoth_sourceCancelled() throws Throwable {
2070	>	for (ExecutionMode m : ExecutionMode.values())
2071	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2072	>	for (boolean fFirst : new boolean[] { true, false })
2073	>	for (boolean failFirst : new boolean[] { true, false })
2074	>	for (Integer v1 : new Integer[] { 1, null })
2075	>	{
2076	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2077	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2078	>	final Noop r1 = new Noop(m);
2079	>	final Noop r2 = new Noop(m);
2080	>	final Noop r3 = new Noop(m);
2081	>
2082	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2083	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2084	>	final Callable<Boolean> complete1 = failFirst ?
2085	>	() -> fst.cancel(mayInterruptIfRunning) :
2086	>	() -> fst.complete(v1);
2087	>	final Callable<Boolean> complete2 = failFirst ?
2088	>	() -> snd.complete(v1) :
2089	>	() -> snd.cancel(mayInterruptIfRunning);
2090	>
2091	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2092	>	assertTrue(complete1.call());
2093	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2094	>	checkIncomplete(h1);
2095	>	checkIncomplete(h2);
2096	>	assertTrue(complete2.call());
2097	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2098	>
2099	>	checkCompletedWithWrappedCancellationException(h1);
2100	>	checkCompletedWithWrappedCancellationException(h2);
2101	>	checkCompletedWithWrappedCancellationException(h3);
2102	>	r1.assertNotInvoked();
2103	>	r2.assertNotInvoked();
2104	>	r3.assertNotInvoked();
2105	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2106	>	checkCancelled(failFirst ? fst : snd);
2107	>	}}
2108
2109		/**
2110	<	* runAfterBoth result completes exceptionally if either source cancelled
2110	>	* runAfterBoth result completes exceptionally if action does
2111		*/
2112	<	public void testRunAfterBoth4() {
2113	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2114	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2115	<	Noop r = new Noop();
2116	<	CompletableFuture<Void> g = f.runAfterBoth(f2, r);
2117	<	assertTrue(f.cancel(true));
2118	<	f2.complete(two);
2119	<	checkCompletedWithWrappedCancellationException(g);
2120	<	f = new CompletableFuture<>();
2121	<	f2 = new CompletableFuture<>();
2122	<	r = new Noop();
2123	<	g = f.runAfterBoth(f2, r);
2124	<	f.complete(one);
2125	<	assertTrue(f2.cancel(true));
2126	<	checkCompletedWithWrappedCancellationException(g);
2127	<	}
2112	>	public void testRunAfterBoth_actionFailed() {
2113	>	for (ExecutionMode m : ExecutionMode.values())
2114	>	for (boolean fFirst : new boolean[] { true, false })
2115	>	for (Integer v1 : new Integer[] { 1, null })
2116	>	for (Integer v2 : new Integer[] { 2, null })
2117	>	{
2118	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2119	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2120	>	final FailingRunnable r1 = new FailingRunnable(m);
2121	>	final FailingRunnable r2 = new FailingRunnable(m);
2122	>	final FailingRunnable r3 = new FailingRunnable(m);
2123	>
2124	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2125	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2126	>	final Integer w1 =  fFirst ? v1 : v2;
2127	>	final Integer w2 = !fFirst ? v1 : v2;
2128	>
2129	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2130	>	assertTrue(fst.complete(w1));
2131	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2132	>	assertTrue(snd.complete(w2));
2133	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2134	>
2135	>	checkCompletedWithWrappedException(h1, r1.ex);
2136	>	checkCompletedWithWrappedException(h2, r2.ex);
2137	>	checkCompletedWithWrappedException(h3, r3.ex);
2138	>	r1.assertInvoked();
2139	>	r2.assertInvoked();
2140	>	r3.assertInvoked();
2141	>	checkCompletedNormally(f, v1);
2142	>	checkCompletedNormally(g, v2);
2143	>	}}
2144
2145		/**
2146		* applyToEither result completes normally after normal completion
2147		* of either source
2148		*/
2149	<	public void testApplyToEither() {
2150	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2151	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2152	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
2153	<	f.complete(one);
2154	<	checkCompletedNormally(g, two);
2155	<	f2.complete(one);
2156	<	checkCompletedNormally(g, two);
2157	<
2158	<	f = new CompletableFuture<>();
2159	<	f.complete(one);
2160	<	f2 = new CompletableFuture<>();
2161	<	g = f.applyToEither(f2, inc);
2162	<	checkCompletedNormally(g, two);
2163	<	}
2149	>	public void testApplyToEither_normalCompletion() {
2150	>	for (ExecutionMode m : ExecutionMode.values())
2151	>	for (Integer v1 : new Integer[] { 1, null })
2152	>	for (Integer v2 : new Integer[] { 2, null })
2153	>	{
2154	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2155	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2156	>	final IncFunction[] rs = new IncFunction[6];
2157	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2158	>
2159	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2160	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2161	>	checkIncomplete(h0);
2162	>	checkIncomplete(h1);
2163	>	rs[0].assertNotInvoked();
2164	>	rs[1].assertNotInvoked();
2165	>	f.complete(v1);
2166	>	checkCompletedNormally(h0, inc(v1));
2167	>	checkCompletedNormally(h1, inc(v1));
2168	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2169	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2170	>	checkCompletedNormally(h2, inc(v1));
2171	>	checkCompletedNormally(h3, inc(v1));
2172	>	g.complete(v2);
2173	>
2174	>	// unspecified behavior - both source completions available
2175	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2176	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2177	>	rs[4].assertValue(h4.join());
2178	>	rs[5].assertValue(h5.join());
2179	>	assertTrue(Objects.equals(inc(v1), h4.join()) ||
2180	>	Objects.equals(inc(v2), h4.join()));
2181	>	assertTrue(Objects.equals(inc(v1), h5.join()) ||
2182	>	Objects.equals(inc(v2), h5.join()));
2183	>
2184	>	checkCompletedNormally(f, v1);
2185	>	checkCompletedNormally(g, v2);
2186	>	checkCompletedNormally(h0, inc(v1));
2187	>	checkCompletedNormally(h1, inc(v1));
2188	>	checkCompletedNormally(h2, inc(v1));
2189	>	checkCompletedNormally(h3, inc(v1));
2190	>	for (int i = 0; i < 4; i++) rs[i].assertValue(inc(v1));
2191	>	}}
2192
2193		/**
2194		* applyToEither result completes exceptionally after exceptional
2195		* completion of either source
2196		*/
2197	<	public void testApplyToEither2() {
2198	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2199	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2200	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
2201	<	f.completeExceptionally(new CFException());
2202	<	f2.complete(one);
2203	<	checkCompletedWithWrappedCFException(g);
2197	>	public void testApplyToEither_exceptionalCompletion() {
2198	>	for (ExecutionMode m : ExecutionMode.values())
2199	>	for (Integer v1 : new Integer[] { 1, null })
2200	>	{
2201	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2202	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2203	>	final CFException ex = new CFException();
2204	>	final IncFunction[] rs = new IncFunction[6];
2205	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2206	>
2207	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2208	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2209	>	checkIncomplete(h0);
2210	>	checkIncomplete(h1);
2211	>	rs[0].assertNotInvoked();
2212	>	rs[1].assertNotInvoked();
2213	>	f.completeExceptionally(ex);
2214	>	checkCompletedWithWrappedException(h0, ex);
2215	>	checkCompletedWithWrappedException(h1, ex);
2216	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2217	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2218	>	checkCompletedWithWrappedException(h2, ex);
2219	>	checkCompletedWithWrappedException(h3, ex);
2220	>	g.complete(v1);
2221	>
2222	>	// unspecified behavior - both source completions available
2223	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2224	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2225	>	try {
2226	>	assertEquals(inc(v1), h4.join());
2227	>	rs[4].assertValue(inc(v1));
2228	>	} catch (CompletionException ok) {
2229	>	checkCompletedWithWrappedException(h4, ex);
2230	>	rs[4].assertNotInvoked();
2231	>	}
2232	>	try {
2233	>	assertEquals(inc(v1), h5.join());
2234	>	rs[5].assertValue(inc(v1));
2235	>	} catch (CompletionException ok) {
2236	>	checkCompletedWithWrappedException(h5, ex);
2237	>	rs[5].assertNotInvoked();
2238	>	}
2239
2240	<	f = new CompletableFuture<>();
2241	<	f2 = new CompletableFuture<>();
2242	<	f2.completeExceptionally(new CFException());
2243	<	g = f.applyToEither(f2, inc);
2244	<	checkCompletedWithWrappedCFException(g);
2245	<	}
2240	>	checkCompletedExceptionally(f, ex);
2241	>	checkCompletedNormally(g, v1);
2242	>	checkCompletedWithWrappedException(h0, ex);
2243	>	checkCompletedWithWrappedException(h1, ex);
2244	>	checkCompletedWithWrappedException(h2, ex);
2245	>	checkCompletedWithWrappedException(h3, ex);
2246	>	checkCompletedWithWrappedException(h4, ex);
2247	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2248	>	}}
2249	>
2250	>	public void testApplyToEither_exceptionalCompletion2() {
2251	>	for (ExecutionMode m : ExecutionMode.values())
2252	>	for (boolean fFirst : new boolean[] { true, false })
2253	>	for (Integer v1 : new Integer[] { 1, null })
2254	>	{
2255	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2256	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2257	>	final CFException ex = new CFException();
2258	>	final IncFunction[] rs = new IncFunction[6];
2259	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2260	>
2261	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2262	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2263	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2264	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2265	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2266	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2267
2268	<	/**
2269	<	* applyToEither result completes exceptionally if action does
2270	<	*/
2271	<	public void testApplyToEither3() {
2272	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2273	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2274	<	FailingFunction r = new FailingFunction();
2275	<	CompletableFuture<Integer> g = f.applyToEither(f2, r);
2276	<	f2.complete(two);
2277	<	checkCompletedWithWrappedCFException(g);
2278	<	}
2268	>	// unspecified behavior - both source completions available
2269	>	try {
2270	>	assertEquals(inc(v1), h0.join());
2271	>	rs[0].assertValue(inc(v1));
2272	>	} catch (CompletionException ok) {
2273	>	checkCompletedWithWrappedException(h0, ex);
2274	>	rs[0].assertNotInvoked();
2275	>	}
2276	>	try {
2277	>	assertEquals(inc(v1), h1.join());
2278	>	rs[1].assertValue(inc(v1));
2279	>	} catch (CompletionException ok) {
2280	>	checkCompletedWithWrappedException(h1, ex);
2281	>	rs[1].assertNotInvoked();
2282	>	}
2283	>	try {
2284	>	assertEquals(inc(v1), h2.join());
2285	>	rs[2].assertValue(inc(v1));
2286	>	} catch (CompletionException ok) {
2287	>	checkCompletedWithWrappedException(h2, ex);
2288	>	rs[2].assertNotInvoked();
2289	>	}
2290	>	try {
2291	>	assertEquals(inc(v1), h3.join());
2292	>	rs[3].assertValue(inc(v1));
2293	>	} catch (CompletionException ok) {
2294	>	checkCompletedWithWrappedException(h3, ex);
2295	>	rs[3].assertNotInvoked();
2296	>	}
2297
2298	<	/**
2299	<	* applyToEither result completes exceptionally if either source cancelled
2300	<	*/
1089	<	public void testApplyToEither4() {
1090	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1091	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1092	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
1093	<	assertTrue(f.cancel(true));
1094	<	checkCompletedWithWrappedCancellationException(g);
1095	<	f = new CompletableFuture<>();
1096	<	f2 = new CompletableFuture<>();
1097	<	assertTrue(f2.cancel(true));
1098	<	checkCompletedWithWrappedCancellationException(g);
1099	<	}
2298	>	checkCompletedNormally(f, v1);
2299	>	checkCompletedExceptionally(g, ex);
2300	>	}}
2301
2302		/**
2303	<	* acceptEither result completes normally after normal completion
1103	<	* of either source
2303	>	* applyToEither result completes exceptionally if either source cancelled
2304		*/
2305	<	public void testAcceptEither() {
2306	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2307	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2308	<	IncAction r = new IncAction();
2309	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2310	<	f.complete(one);
2311	<	checkCompletedNormally(g, null);
2312	<	f2.complete(one);
2313	<	checkCompletedNormally(g, null);
2314	<	assertEquals(r.value, 2);
2315	<
2316	<	r = new IncAction();
2317	<	f = new CompletableFuture<>();
2318	<	f.complete(one);
2319	<	f2 = new CompletableFuture<>();
2320	<	g = f.acceptEither(f2, r);
2321	<	checkCompletedNormally(g, null);
2322	<	assertEquals(r.value, 2);
2323	<	}
2305	>	public void testApplyToEither_sourceCancelled() {
2306	>	for (ExecutionMode m : ExecutionMode.values())
2307	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2308	>	for (Integer v1 : new Integer[] { 1, null })
2309	>	{
2310	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2311	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2312	>	final IncFunction[] rs = new IncFunction[6];
2313	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2314	>
2315	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2316	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2317	>	checkIncomplete(h0);
2318	>	checkIncomplete(h1);
2319	>	rs[0].assertNotInvoked();
2320	>	rs[1].assertNotInvoked();
2321	>	f.cancel(mayInterruptIfRunning);
2322	>	checkCompletedWithWrappedCancellationException(h0);
2323	>	checkCompletedWithWrappedCancellationException(h1);
2324	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2325	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2326	>	checkCompletedWithWrappedCancellationException(h2);
2327	>	checkCompletedWithWrappedCancellationException(h3);
2328	>	g.complete(v1);
2329	>
2330	>	// unspecified behavior - both source completions available
2331	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2332	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2333	>	try {
2334	>	assertEquals(inc(v1), h4.join());
2335	>	rs[4].assertValue(inc(v1));
2336	>	} catch (CompletionException ok) {
2337	>	checkCompletedWithWrappedCancellationException(h4);
2338	>	rs[4].assertNotInvoked();
2339	>	}
2340	>	try {
2341	>	assertEquals(inc(v1), h5.join());
2342	>	rs[5].assertValue(inc(v1));
2343	>	} catch (CompletionException ok) {
2344	>	checkCompletedWithWrappedCancellationException(h5);
2345	>	rs[5].assertNotInvoked();
2346	>	}
2347
2348	<	/**
2349	<	* acceptEither result completes exceptionally after exceptional
2350	<	* completion of either source
2351	<	*/
2352	<	public void testAcceptEither2() {
2353	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2354	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2355	<	IncAction r = new IncAction();
2356	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2357	<	f.completeExceptionally(new CFException());
2358	<	f2.complete(one);
2359	<	checkCompletedWithWrappedCFException(g);
2348	>	checkCancelled(f);
2349	>	checkCompletedNormally(g, v1);
2350	>	checkCompletedWithWrappedCancellationException(h0);
2351	>	checkCompletedWithWrappedCancellationException(h1);
2352	>	checkCompletedWithWrappedCancellationException(h2);
2353	>	checkCompletedWithWrappedCancellationException(h3);
2354	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2355	>	}}
2356	>
2357	>	public void testApplyToEither_sourceCancelled2() {
2358	>	for (ExecutionMode m : ExecutionMode.values())
2359	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2360	>	for (boolean fFirst : new boolean[] { true, false })
2361	>	for (Integer v1 : new Integer[] { 1, null })
2362	>	{
2363	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2364	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2365	>	final IncFunction[] rs = new IncFunction[6];
2366	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2367	>
2368	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2369	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2370	>	assertTrue(fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2371	>	assertTrue(!fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2372	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2373	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2374
2375	<	r = new IncAction();
2376	<	f = new CompletableFuture<>();
2377	<	f2 = new CompletableFuture<>();
2378	<	f2.completeExceptionally(new CFException());
2379	<	g = f.acceptEither(f2, r);
2380	<	checkCompletedWithWrappedCFException(g);
2381	<	}
2375	>	// unspecified behavior - both source completions available
2376	>	try {
2377	>	assertEquals(inc(v1), h0.join());
2378	>	rs[0].assertValue(inc(v1));
2379	>	} catch (CompletionException ok) {
2380	>	checkCompletedWithWrappedCancellationException(h0);
2381	>	rs[0].assertNotInvoked();
2382	>	}
2383	>	try {
2384	>	assertEquals(inc(v1), h1.join());
2385	>	rs[1].assertValue(inc(v1));
2386	>	} catch (CompletionException ok) {
2387	>	checkCompletedWithWrappedCancellationException(h1);
2388	>	rs[1].assertNotInvoked();
2389	>	}
2390	>	try {
2391	>	assertEquals(inc(v1), h2.join());
2392	>	rs[2].assertValue(inc(v1));
2393	>	} catch (CompletionException ok) {
2394	>	checkCompletedWithWrappedCancellationException(h2);
2395	>	rs[2].assertNotInvoked();
2396	>	}
2397	>	try {
2398	>	assertEquals(inc(v1), h3.join());
2399	>	rs[3].assertValue(inc(v1));
2400	>	} catch (CompletionException ok) {
2401	>	checkCompletedWithWrappedCancellationException(h3);
2402	>	rs[3].assertNotInvoked();
2403	>	}
2404
2405	<	/**
2406	<	* acceptEither result completes exceptionally if action does
2407	<	*/
1149	<	public void testAcceptEither3() {
1150	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1151	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1152	<	FailingConsumer r = new FailingConsumer();
1153	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
1154	<	f2.complete(two);
1155	<	checkCompletedWithWrappedCFException(g);
1156	<	}
2405	>	checkCompletedNormally(f, v1);
2406	>	checkCancelled(g);
2407	>	}}
2408
2409		/**
2410	<	* acceptEither result completes exceptionally if either source cancelled
2410	>	* applyToEither result completes exceptionally if action does
2411		*/
2412	<	public void testAcceptEither4() {
2413	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2414	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2415	<	IncAction r = new IncAction();
2416	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2417	<	assertTrue(f.cancel(true));
2418	<	checkCompletedWithWrappedCancellationException(g);
2419	<	f = new CompletableFuture<>();
2420	<	f2 = new CompletableFuture<>();
2421	<	assertTrue(f2.cancel(true));
2422	<	checkCompletedWithWrappedCancellationException(g);
2423	<	}
2424	<
2412	>	public void testApplyToEither_actionFailed() {
2413	>	for (ExecutionMode m : ExecutionMode.values())
2414	>	for (Integer v1 : new Integer[] { 1, null })
2415	>	for (Integer v2 : new Integer[] { 2, null })
2416	>	{
2417	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2418	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2419	>	final FailingFunction[] rs = new FailingFunction[6];
2420	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
2421	>
2422	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2423	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2424	>	f.complete(v1);
2425	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2426	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2427	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2428	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2429	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2430	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2431	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2432	>
2433	>	g.complete(v2);
2434	>
2435	>	// unspecified behavior - both source completions available
2436	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2437	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2438	>
2439	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2440	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2441	>	Objects.equals(v2, rs[4].value));
2442	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2443	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2444	>	Objects.equals(v2, rs[5].value));
2445	>
2446	>	checkCompletedNormally(f, v1);
2447	>	checkCompletedNormally(g, v2);
2448	>	}}
2449
2450		/**
2451	<	* runAfterEither result completes normally after normal completion
2451	>	* acceptEither result completes normally after normal completion
2452		* of either source
2453		*/
2454	<	public void testRunAfterEither() {
2455	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2456	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2457	<	Noop r = new Noop();
2458	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2459	<	f.complete(one);
2460	<	checkCompletedNormally(g, null);
2461	<	f2.complete(one);
2462	<	checkCompletedNormally(g, null);
2463	<	assertTrue(r.ran);
2464	<
2465	<	r = new Noop();
2466	<	f = new CompletableFuture<>();
2467	<	f.complete(one);
2468	<	f2 = new CompletableFuture<>();
2469	<	g = f.runAfterEither(f2, r);
2470	<	checkCompletedNormally(g, null);
2471	<	assertTrue(r.ran);
2472	<	}
2454	>	public void testAcceptEither_normalCompletion() {
2455	>	for (ExecutionMode m : ExecutionMode.values())
2456	>	for (Integer v1 : new Integer[] { 1, null })
2457	>	for (Integer v2 : new Integer[] { 2, null })
2458	>	{
2459	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2460	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2461	>	final NoopConsumer[] rs = new NoopConsumer[6];
2462	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2463	>
2464	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2465	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2466	>	checkIncomplete(h0);
2467	>	checkIncomplete(h1);
2468	>	rs[0].assertNotInvoked();
2469	>	rs[1].assertNotInvoked();
2470	>	f.complete(v1);
2471	>	checkCompletedNormally(h0, null);
2472	>	checkCompletedNormally(h1, null);
2473	>	rs[0].assertValue(v1);
2474	>	rs[1].assertValue(v1);
2475	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2476	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2477	>	checkCompletedNormally(h2, null);
2478	>	checkCompletedNormally(h3, null);
2479	>	rs[2].assertValue(v1);
2480	>	rs[3].assertValue(v1);
2481	>	g.complete(v2);
2482	>
2483	>	// unspecified behavior - both source completions available
2484	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2485	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2486	>	checkCompletedNormally(h4, null);
2487	>	checkCompletedNormally(h5, null);
2488	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2489	>	Objects.equals(v2, rs[4].value));
2490	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2491	>	Objects.equals(v2, rs[5].value));
2492	>
2493	>	checkCompletedNormally(f, v1);
2494	>	checkCompletedNormally(g, v2);
2495	>	checkCompletedNormally(h0, null);
2496	>	checkCompletedNormally(h1, null);
2497	>	checkCompletedNormally(h2, null);
2498	>	checkCompletedNormally(h3, null);
2499	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2500	>	}}
2501
2502		/**
2503	<	* runAfterEither result completes exceptionally after exceptional
2503	>	* acceptEither result completes exceptionally after exceptional
2504		* completion of either source
2505		*/
2506	<	public void testRunAfterEither2() {
2507	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2508	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2509	<	Noop r = new Noop();
2510	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2511	<	f.completeExceptionally(new CFException());
2512	<	f2.complete(one);
2513	<	checkCompletedWithWrappedCFException(g);
2514	<
2515	<	r = new Noop();
2516	<	f = new CompletableFuture<>();
2517	<	f2 = new CompletableFuture<>();
2518	<	f2.completeExceptionally(new CFException());
2519	<	g = f.runAfterEither(f2, r);
2520	<	checkCompletedWithWrappedCFException(g);
2521	<	}
2522	<
2523	<	/**
2524	<	* runAfterEither result completes exceptionally if action does
2525	<	*/
2526	<	public void testRunAfterEither3() {
2527	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2528	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2529	<	FailingNoop r = new FailingNoop();
2530	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2531	<	f2.complete(two);
2532	<	checkCompletedWithWrappedCFException(g);
2533	<	}
2534	<
2535	<	/**
2536	<	* runAfterEither result completes exceptionally if either source cancelled
2537	<	*/
2538	<	public void testRunAfterEither4() {
2539	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2540	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2541	<	Noop r = new Noop();
2542	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2543	<	assertTrue(f.cancel(true));
2544	<	checkCompletedWithWrappedCancellationException(g);
2545	<	f = new CompletableFuture<>();
2546	<	f2 = new CompletableFuture<>();
2547	<	assertTrue(f2.cancel(true));
2548	<	checkCompletedWithWrappedCancellationException(g);
1246	<	}
2506	>	public void testAcceptEither_exceptionalCompletion() {
2507	>	for (ExecutionMode m : ExecutionMode.values())
2508	>	for (Integer v1 : new Integer[] { 1, null })
2509	>	{
2510	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2511	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2512	>	final CFException ex = new CFException();
2513	>	final NoopConsumer[] rs = new NoopConsumer[6];
2514	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2515	>
2516	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2517	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2518	>	checkIncomplete(h0);
2519	>	checkIncomplete(h1);
2520	>	rs[0].assertNotInvoked();
2521	>	rs[1].assertNotInvoked();
2522	>	f.completeExceptionally(ex);
2523	>	checkCompletedWithWrappedException(h0, ex);
2524	>	checkCompletedWithWrappedException(h1, ex);
2525	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2526	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2527	>	checkCompletedWithWrappedException(h2, ex);
2528	>	checkCompletedWithWrappedException(h3, ex);
2529	>
2530	>	g.complete(v1);
2531	>
2532	>	// unspecified behavior - both source completions available
2533	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2534	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2535	>	try {
2536	>	assertNull(h4.join());
2537	>	rs[4].assertValue(v1);
2538	>	} catch (CompletionException ok) {
2539	>	checkCompletedWithWrappedException(h4, ex);
2540	>	rs[4].assertNotInvoked();
2541	>	}
2542	>	try {
2543	>	assertNull(h5.join());
2544	>	rs[5].assertValue(v1);
2545	>	} catch (CompletionException ok) {
2546	>	checkCompletedWithWrappedException(h5, ex);
2547	>	rs[5].assertNotInvoked();
2548	>	}
2549
2550	<	/**
2551	<	* thenCompose result completes normally after normal completion of source
2552	<	*/
2553	<	public void testThenCompose() {
2554	<	CompletableFuture<Integer> f, g;
2555	<	CompletableFutureInc r;
2550	>	checkCompletedExceptionally(f, ex);
2551	>	checkCompletedNormally(g, v1);
2552	>	checkCompletedWithWrappedException(h0, ex);
2553	>	checkCompletedWithWrappedException(h1, ex);
2554	>	checkCompletedWithWrappedException(h2, ex);
2555	>	checkCompletedWithWrappedException(h3, ex);
2556	>	checkCompletedWithWrappedException(h4, ex);
2557	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2558	>	}}
2559	>
2560	>	public void testAcceptEither_exceptionalCompletion2() {
2561	>	for (ExecutionMode m : ExecutionMode.values())
2562	>	for (boolean fFirst : new boolean[] { true, false })
2563	>	for (Integer v1 : new Integer[] { 1, null })
2564	>	{
2565	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2566	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2567	>	final CFException ex = new CFException();
2568	>	final NoopConsumer[] rs = new NoopConsumer[6];
2569	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2570	>
2571	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2572	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2573	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2574	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2575	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2576	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2577
2578	<	f = new CompletableFuture<>();
2579	<	g = f.thenCompose(r = new CompletableFutureInc());
2580	<	f.complete(one);
2581	<	checkCompletedNormally(g, two);
2582	<	assertTrue(r.ran);
2578	>	// unspecified behavior - both source completions available
2579	>	try {
2580	>	assertNull(h0.join());
2581	>	rs[0].assertValue(v1);
2582	>	} catch (CompletionException ok) {
2583	>	checkCompletedWithWrappedException(h0, ex);
2584	>	rs[0].assertNotInvoked();
2585	>	}
2586	>	try {
2587	>	assertNull(h1.join());
2588	>	rs[1].assertValue(v1);
2589	>	} catch (CompletionException ok) {
2590	>	checkCompletedWithWrappedException(h1, ex);
2591	>	rs[1].assertNotInvoked();
2592	>	}
2593	>	try {
2594	>	assertNull(h2.join());
2595	>	rs[2].assertValue(v1);
2596	>	} catch (CompletionException ok) {
2597	>	checkCompletedWithWrappedException(h2, ex);
2598	>	rs[2].assertNotInvoked();
2599	>	}
2600	>	try {
2601	>	assertNull(h3.join());
2602	>	rs[3].assertValue(v1);
2603	>	} catch (CompletionException ok) {
2604	>	checkCompletedWithWrappedException(h3, ex);
2605	>	rs[3].assertNotInvoked();
2606	>	}
2607
2608	<	f = new CompletableFuture<>();
2609	<	f.complete(one);
2610	<	g = f.thenCompose(r = new CompletableFutureInc());
1264	<	checkCompletedNormally(g, two);
1265	<	assertTrue(r.ran);
1266	<	}
2608	>	checkCompletedNormally(f, v1);
2609	>	checkCompletedExceptionally(g, ex);
2610	>	}}
2611
2612		/**
2613	<	* thenCompose result completes exceptionally after exceptional
1270	<	* completion of source
2613	>	* acceptEither result completes exceptionally if either source cancelled
2614		*/
2615	<	public void testThenCompose2() {
2616	<	CompletableFuture<Integer> f, g;
2617	<	CompletableFutureInc r;
2618	<
2619	<	f = new CompletableFuture<>();
2620	<	g = f.thenCompose(r = new CompletableFutureInc());
2621	<	f.completeExceptionally(new CFException());
2622	<	checkCompletedWithWrappedCFException(g);
2615	>	public void testAcceptEither_sourceCancelled() {
2616	>	for (ExecutionMode m : ExecutionMode.values())
2617	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2618	>	for (Integer v1 : new Integer[] { 1, null })
2619	>	{
2620	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2621	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2622	>	final NoopConsumer[] rs = new NoopConsumer[6];
2623	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2624	>
2625	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2626	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2627	>	checkIncomplete(h0);
2628	>	checkIncomplete(h1);
2629	>	rs[0].assertNotInvoked();
2630	>	rs[1].assertNotInvoked();
2631	>	f.cancel(mayInterruptIfRunning);
2632	>	checkCompletedWithWrappedCancellationException(h0);
2633	>	checkCompletedWithWrappedCancellationException(h1);
2634	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2635	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2636	>	checkCompletedWithWrappedCancellationException(h2);
2637	>	checkCompletedWithWrappedCancellationException(h3);
2638	>
2639	>	g.complete(v1);
2640	>
2641	>	// unspecified behavior - both source completions available
2642	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2643	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2644	>	try {
2645	>	assertNull(h4.join());
2646	>	rs[4].assertValue(v1);
2647	>	} catch (CompletionException ok) {
2648	>	checkCompletedWithWrappedCancellationException(h4);
2649	>	rs[4].assertNotInvoked();
2650	>	}
2651	>	try {
2652	>	assertNull(h5.join());
2653	>	rs[5].assertValue(v1);
2654	>	} catch (CompletionException ok) {
2655	>	checkCompletedWithWrappedCancellationException(h5);
2656	>	rs[5].assertNotInvoked();
2657	>	}
2658
2659	<	f = new CompletableFuture<>();
2660	<	f.completeExceptionally(new CFException());
2661	<	g = f.thenCompose(r = new CompletableFutureInc());
2662	<	checkCompletedWithWrappedCFException(g);
2663	<	}
2659	>	checkCancelled(f);
2660	>	checkCompletedNormally(g, v1);
2661	>	checkCompletedWithWrappedCancellationException(h0);
2662	>	checkCompletedWithWrappedCancellationException(h1);
2663	>	checkCompletedWithWrappedCancellationException(h2);
2664	>	checkCompletedWithWrappedCancellationException(h3);
2665	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2666	>	}}
2667
2668		/**
2669	<	* thenCompose result completes exceptionally if action does
2669	>	* acceptEither result completes exceptionally if action does
2670		*/
2671	<	public void testThenCompose3() {
2672	<	CompletableFuture<Integer> f, g;
2673	<	FailingCompletableFutureFunction r;
2674	<
2675	<	f = new CompletableFuture<>();
2676	<	g = f.thenCompose(r = new FailingCompletableFutureFunction());
2677	<	f.complete(one);
2678	<	checkCompletedWithWrappedCFException(g);
2679	<
2680	<	f = new CompletableFuture<>();
2681	<	f.complete(one);
2682	<	g = f.thenCompose(r = new FailingCompletableFutureFunction());
2683	<	checkCompletedWithWrappedCFException(g);
2684	<	}
2671	>	public void testAcceptEither_actionFailed() {
2672	>	for (ExecutionMode m : ExecutionMode.values())
2673	>	for (Integer v1 : new Integer[] { 1, null })
2674	>	for (Integer v2 : new Integer[] { 2, null })
2675	>	{
2676	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2677	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2678	>	final FailingConsumer[] rs = new FailingConsumer[6];
2679	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
2680	>
2681	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2682	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2683	>	f.complete(v1);
2684	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2685	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2686	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2687	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2688	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2689	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2690	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2691	>
2692	>	g.complete(v2);
2693	>
2694	>	// unspecified behavior - both source completions available
2695	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2696	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2697	>
2698	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2699	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2700	>	Objects.equals(v2, rs[4].value));
2701	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2702	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2703	>	Objects.equals(v2, rs[5].value));
2704	>
2705	>	checkCompletedNormally(f, v1);
2706	>	checkCompletedNormally(g, v2);
2707	>	}}
2708
2709		/**
2710	<	* thenCompose result completes exceptionally if source cancelled
2710	>	* runAfterEither result completes normally after normal completion
2711	>	* of either source
2712		*/
2713	<	public void testThenCompose4() {
2714	<	CompletableFuture<Integer> f, g;
2715	<	CompletableFutureInc r;
2716	<
2717	<	f = new CompletableFuture<>();
2718	<	g = f.thenCompose(r = new CompletableFutureInc());
2719	<	assertTrue(f.cancel(true));
2720	<	checkCompletedWithWrappedCancellationException(g);
2721	<
2722	<	f = new CompletableFuture<>();
2723	<	assertTrue(f.cancel(true));
2724	<	g = f.thenCompose(r = new CompletableFutureInc());
2725	<	checkCompletedWithWrappedCancellationException(g);
2726	<	}
2727	<
2728	<
2729	<	// asyncs
2713	>	public void testRunAfterEither_normalCompletion() {
2714	>	for (ExecutionMode m : ExecutionMode.values())
2715	>	for (Integer v1 : new Integer[] { 1, null })
2716	>	for (Integer v2 : new Integer[] { 2, null })
2717	>	for (boolean pushNop : new boolean[] { true, false })
2718	>	{
2719	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2720	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2721	>	final Noop[] rs = new Noop[6];
2722	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2723	>
2724	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2725	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2726	>	checkIncomplete(h0);
2727	>	checkIncomplete(h1);
2728	>	rs[0].assertNotInvoked();
2729	>	rs[1].assertNotInvoked();
2730	>	if (pushNop) {          // ad hoc test of intra-completion interference
2731	>	m.thenRun(f, () -> {});
2732	>	m.thenRun(g, () -> {});
2733	>	}
2734	>	f.complete(v1);
2735	>	checkCompletedNormally(h0, null);
2736	>	checkCompletedNormally(h1, null);
2737	>	rs[0].assertInvoked();
2738	>	rs[1].assertInvoked();
2739	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2740	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2741	>	checkCompletedNormally(h2, null);
2742	>	checkCompletedNormally(h3, null);
2743	>	rs[2].assertInvoked();
2744	>	rs[3].assertInvoked();
2745	>
2746	>	g.complete(v2);
2747	>
2748	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2749	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2750	>
2751	>	checkCompletedNormally(f, v1);
2752	>	checkCompletedNormally(g, v2);
2753	>	checkCompletedNormally(h0, null);
2754	>	checkCompletedNormally(h1, null);
2755	>	checkCompletedNormally(h2, null);
2756	>	checkCompletedNormally(h3, null);
2757	>	checkCompletedNormally(h4, null);
2758	>	checkCompletedNormally(h5, null);
2759	>	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2760	>	}}
2761
2762		/**
2763	<	* thenRunAsync result completes normally after normal completion of source
2763	>	* runAfterEither result completes exceptionally after exceptional
2764	>	* completion of either source
2765		*/
2766	<	public void testThenRunAsync() {
2767	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2768	<	Noop r = new Noop();
2769	<	CompletableFuture<Void> g = f.thenRunAsync(r);
2770	<	f.complete(null);
2771	<	checkCompletedNormally(g, null);
2766	>	public void testRunAfterEither_exceptionalCompletion() {
2767	>	for (ExecutionMode m : ExecutionMode.values())
2768	>	for (Integer v1 : new Integer[] { 1, null })
2769	>	{
2770	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2771	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2772	>	final CFException ex = new CFException();
2773	>	final Noop[] rs = new Noop[6];
2774	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2775	>
2776	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2777	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2778	>	checkIncomplete(h0);
2779	>	checkIncomplete(h1);
2780	>	rs[0].assertNotInvoked();
2781	>	rs[1].assertNotInvoked();
2782	>	assertTrue(f.completeExceptionally(ex));
2783	>	checkCompletedWithWrappedException(h0, ex);
2784	>	checkCompletedWithWrappedException(h1, ex);
2785	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2786	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2787	>	checkCompletedWithWrappedException(h2, ex);
2788	>	checkCompletedWithWrappedException(h3, ex);
2789	>
2790	>	assertTrue(g.complete(v1));
2791	>
2792	>	// unspecified behavior - both source completions available
2793	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2794	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2795	>	try {
2796	>	assertNull(h4.join());
2797	>	rs[4].assertInvoked();
2798	>	} catch (CompletionException ok) {
2799	>	checkCompletedWithWrappedException(h4, ex);
2800	>	rs[4].assertNotInvoked();
2801	>	}
2802	>	try {
2803	>	assertNull(h5.join());
2804	>	rs[5].assertInvoked();
2805	>	} catch (CompletionException ok) {
2806	>	checkCompletedWithWrappedException(h5, ex);
2807	>	rs[5].assertNotInvoked();
2808	>	}
2809
2810	<	// reordered version
2811	<	f = new CompletableFuture<>();
2812	<	f.complete(null);
2813	<	r = new Noop();
2814	<	g = f.thenRunAsync(r);
2815	<	checkCompletedNormally(g, null);
2816	<	}
2810	>	checkCompletedExceptionally(f, ex);
2811	>	checkCompletedNormally(g, v1);
2812	>	checkCompletedWithWrappedException(h0, ex);
2813	>	checkCompletedWithWrappedException(h1, ex);
2814	>	checkCompletedWithWrappedException(h2, ex);
2815	>	checkCompletedWithWrappedException(h3, ex);
2816	>	checkCompletedWithWrappedException(h4, ex);
2817	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2818	>	}}
2819	>
2820	>	public void testRunAfterEither_exceptionalCompletion2() {
2821	>	for (ExecutionMode m : ExecutionMode.values())
2822	>	for (boolean fFirst : new boolean[] { true, false })
2823	>	for (Integer v1 : new Integer[] { 1, null })
2824	>	{
2825	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2826	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2827	>	final CFException ex = new CFException();
2828	>	final Noop[] rs = new Noop[6];
2829	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2830	>
2831	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2832	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2833	>	assertTrue( fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2834	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2835	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2836	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2837
2838	<	/**
1345	<	* thenRunAsync result completes exceptionally after exceptional
1346	<	* completion of source
1347	<	*/
1348	<	public void testThenRunAsync2() {
1349	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1350	<	Noop r = new Noop();
1351	<	CompletableFuture<Void> g = f.thenRunAsync(r);
1352	<	f.completeExceptionally(new CFException());
2838	>	// unspecified behavior - both source completions available
2839		try {
2840	<	g.join();
2841	<	shouldThrow();
2842	<	} catch (Exception ok) {
2840	>	assertNull(h0.join());
2841	>	rs[0].assertInvoked();
2842	>	} catch (CompletionException ok) {
2843	>	checkCompletedWithWrappedException(h0, ex);
2844	>	rs[0].assertNotInvoked();
2845	>	}
2846	>	try {
2847	>	assertNull(h1.join());
2848	>	rs[1].assertInvoked();
2849	>	} catch (CompletionException ok) {
2850	>	checkCompletedWithWrappedException(h1, ex);
2851	>	rs[1].assertNotInvoked();
2852	>	}
2853	>	try {
2854	>	assertNull(h2.join());
2855	>	rs[2].assertInvoked();
2856	>	} catch (CompletionException ok) {
2857	>	checkCompletedWithWrappedException(h2, ex);
2858	>	rs[2].assertNotInvoked();
2859	>	}
2860	>	try {
2861	>	assertNull(h3.join());
2862	>	rs[3].assertInvoked();
2863	>	} catch (CompletionException ok) {
2864	>	checkCompletedWithWrappedException(h3, ex);
2865	>	rs[3].assertNotInvoked();
2866		}
1358	–	checkCompletedWithWrappedCFException(g);
1359	–	}
2867
2868	<	/**
2869	<	* thenRunAsync result completes exceptionally if action does
2870	<	*/
1364	<	public void testThenRunAsync3() {
1365	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1366	<	FailingNoop r = new FailingNoop();
1367	<	CompletableFuture<Void> g = f.thenRunAsync(r);
1368	<	f.complete(null);
1369	<	checkCompletedWithWrappedCFException(g);
1370	<	}
2868	>	checkCompletedNormally(f, v1);
2869	>	checkCompletedExceptionally(g, ex);
2870	>	}}
2871
2872		/**
2873	<	* thenRunAsync result completes exceptionally if source cancelled
2873	>	* runAfterEither result completes exceptionally if either source cancelled
2874		*/
2875	<	public void testThenRunAsync4() {
2876	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2877	<	Noop r = new Noop();
2878	<	CompletableFuture<Void> g = f.thenRunAsync(r);
2879	<	assertTrue(f.cancel(true));
2880	<	checkCompletedWithWrappedCancellationException(g);
2881	<	}
2875	>	public void testRunAfterEither_sourceCancelled() {
2876	>	for (ExecutionMode m : ExecutionMode.values())
2877	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2878	>	for (Integer v1 : new Integer[] { 1, null })
2879	>	{
2880	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2881	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2882	>	final Noop[] rs = new Noop[6];
2883	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2884	>
2885	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2886	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2887	>	checkIncomplete(h0);
2888	>	checkIncomplete(h1);
2889	>	rs[0].assertNotInvoked();
2890	>	rs[1].assertNotInvoked();
2891	>	f.cancel(mayInterruptIfRunning);
2892	>	checkCompletedWithWrappedCancellationException(h0);
2893	>	checkCompletedWithWrappedCancellationException(h1);
2894	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2895	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2896	>	checkCompletedWithWrappedCancellationException(h2);
2897	>	checkCompletedWithWrappedCancellationException(h3);
2898	>
2899	>	assertTrue(g.complete(v1));
2900	>
2901	>	// unspecified behavior - both source completions available
2902	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2903	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2904	>	try {
2905	>	assertNull(h4.join());
2906	>	rs[4].assertInvoked();
2907	>	} catch (CompletionException ok) {
2908	>	checkCompletedWithWrappedCancellationException(h4);
2909	>	rs[4].assertNotInvoked();
2910	>	}
2911	>	try {
2912	>	assertNull(h5.join());
2913	>	rs[5].assertInvoked();
2914	>	} catch (CompletionException ok) {
2915	>	checkCompletedWithWrappedCancellationException(h5);
2916	>	rs[5].assertNotInvoked();
2917	>	}
2918
2919	<	/**
2920	<	* thenApplyAsync result completes normally after normal completion of source
2921	<	*/
2922	<	public void testThenApplyAsync() {
2923	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2924	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
2925	<	f.complete(one);
2926	<	checkCompletedNormally(g, two);
1391	<	}
2919	>	checkCancelled(f);
2920	>	checkCompletedNormally(g, v1);
2921	>	checkCompletedWithWrappedCancellationException(h0);
2922	>	checkCompletedWithWrappedCancellationException(h1);
2923	>	checkCompletedWithWrappedCancellationException(h2);
2924	>	checkCompletedWithWrappedCancellationException(h3);
2925	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2926	>	}}
2927
2928		/**
2929	<	* thenApplyAsync result completes exceptionally after exceptional
1395	<	* completion of source
2929	>	* runAfterEither result completes exceptionally if action does
2930		*/
2931	<	public void testThenApplyAsync2() {
2932	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2933	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
2934	<	f.completeExceptionally(new CFException());
2935	<	checkCompletedWithWrappedCFException(g);
2936	<	}
2931	>	public void testRunAfterEither_actionFailed() {
2932	>	for (ExecutionMode m : ExecutionMode.values())
2933	>	for (Integer v1 : new Integer[] { 1, null })
2934	>	for (Integer v2 : new Integer[] { 2, null })
2935	>	{
2936	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2937	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2938	>	final FailingRunnable[] rs = new FailingRunnable[6];
2939	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
2940	>
2941	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2942	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2943	>	assertTrue(f.complete(v1));
2944	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2945	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2946	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2947	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2948	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2949	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2950	>	for (int i = 0; i < 4; i++) rs[i].assertInvoked();
2951	>	assertTrue(g.complete(v2));
2952	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2953	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2954	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2955	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2956	>
2957	>	checkCompletedNormally(f, v1);
2958	>	checkCompletedNormally(g, v2);
2959	>	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2960	>	}}
2961
2962		/**
2963	<	* thenApplyAsync result completes exceptionally if action does
1406	<	*/
1407	<	public void testThenApplyAsync3() {
1408	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1409	<	FailingFunction r = new FailingFunction();
1410	<	CompletableFuture<Integer> g = f.thenApplyAsync(r);
1411	<	f.complete(null);
1412	<	checkCompletedWithWrappedCFException(g);
1413	<	}
1414	<
1415	<	/**
1416	<	* thenApplyAsync result completes exceptionally if source cancelled
2963	>	* thenCompose result completes normally after normal completion of source
2964		*/
2965	<	public void testThenApplyAsync4() {
2966	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2967	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
2968	<	assertTrue(f.cancel(true));
2969	<	checkCompletedWithWrappedCancellationException(g);
2970	<	}
2965	>	public void testThenCompose_normalCompletion() {
2966	>	for (ExecutionMode m : ExecutionMode.values())
2967	>	for (boolean createIncomplete : new boolean[] { true, false })
2968	>	for (Integer v1 : new Integer[] { 1, null })
2969	>	{
2970	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2971	>	final CompletableFutureInc r = new CompletableFutureInc(m);
2972	>	if (!createIncomplete) assertTrue(f.complete(v1));
2973	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
2974	>	if (createIncomplete) assertTrue(f.complete(v1));
2975	>
2976	>	checkCompletedNormally(g, inc(v1));
2977	>	checkCompletedNormally(f, v1);
2978	>	r.assertValue(v1);
2979	>	}}
2980
2981		/**
2982	<	* thenAcceptAsync result completes normally after normal
2982	>	* thenCompose result completes exceptionally after exceptional
2983		* completion of source
2984		*/
2985	<	public void testThenAcceptAsync() {
2986	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2987	<	IncAction r = new IncAction();
2988	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
2989	<	f.complete(one);
2990	<	checkCompletedNormally(g, null);
2991	<	assertEquals(r.value, 2);
2992	<	}
2985	>	public void testThenCompose_exceptionalCompletion() {
2986	>	for (ExecutionMode m : ExecutionMode.values())
2987	>	for (boolean createIncomplete : new boolean[] { true, false })
2988	>	{
2989	>	final CFException ex = new CFException();
2990	>	final CompletableFutureInc r = new CompletableFutureInc(m);
2991	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2992	>	if (!createIncomplete) f.completeExceptionally(ex);
2993	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
2994	>	if (createIncomplete) f.completeExceptionally(ex);
2995	>
2996	>	checkCompletedWithWrappedException(g, ex);
2997	>	checkCompletedExceptionally(f, ex);
2998	>	r.assertNotInvoked();
2999	>	}}
3000
3001		/**
3002	<	* thenAcceptAsync result completes exceptionally after exceptional
1440	<	* completion of source
3002	>	* thenCompose result completes exceptionally if action does
3003		*/
3004	<	public void testThenAcceptAsync2() {
3005	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3006	<	IncAction r = new IncAction();
3007	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
3008	<	f.completeExceptionally(new CFException());
3009	<	checkCompletedWithWrappedCFException(g);
3010	<	}
3004	>	public void testThenCompose_actionFailed() {
3005	>	for (ExecutionMode m : ExecutionMode.values())
3006	>	for (boolean createIncomplete : new boolean[] { true, false })
3007	>	for (Integer v1 : new Integer[] { 1, null })
3008	>	{
3009	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3010	>	final FailingCompletableFutureFunction r
3011	>	= new FailingCompletableFutureFunction(m);
3012	>	if (!createIncomplete) assertTrue(f.complete(v1));
3013	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3014	>	if (createIncomplete) assertTrue(f.complete(v1));
3015	>
3016	>	checkCompletedWithWrappedException(g, r.ex);
3017	>	checkCompletedNormally(f, v1);
3018	>	}}
3019
3020		/**
3021	<	* thenAcceptAsync result completes exceptionally if action does
3021	>	* thenCompose result completes exceptionally if source cancelled
3022		*/
3023	<	public void testThenAcceptAsync3() {
3024	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3025	<	FailingConsumer r = new FailingConsumer();
3026	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
3027	<	f.complete(null);
3028	<	checkCompletedWithWrappedCFException(g);
3029	<	}
3023	>	public void testThenCompose_sourceCancelled() {
3024	>	for (ExecutionMode m : ExecutionMode.values())
3025	>	for (boolean createIncomplete : new boolean[] { true, false })
3026	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3027	>	{
3028	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3029	>	final CompletableFutureInc r = new CompletableFutureInc(m);
3030	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3031	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3032	>	if (createIncomplete) {
3033	>	checkIncomplete(g);
3034	>	assertTrue(f.cancel(mayInterruptIfRunning));
3035	>	}
3036
1461	–	/**
1462	–	* thenAcceptAsync result completes exceptionally if source cancelled
1463	–	*/
1464	–	public void testThenAcceptAsync4() {
1465	–	CompletableFuture<Integer> f = new CompletableFuture<>();
1466	–	IncAction r = new IncAction();
1467	–	CompletableFuture<Void> g = f.thenAcceptAsync(r);
1468	–	assertTrue(f.cancel(true));
3037		checkCompletedWithWrappedCancellationException(g);
3038	<	}
3039	<
1472	<	/**
1473	<	* thenCombineAsync result completes normally after normal
1474	<	* completion of sources
1475	<	*/
1476	<	public void testThenCombineAsync() {
1477	<	CompletableFuture<Integer> f, g, h;
1478	<
1479	<	f = new CompletableFuture<>();
1480	<	g = new CompletableFuture<>();
1481	<	h = f.thenCombineAsync(g, subtract);
1482	<	f.complete(3);
1483	<	checkIncomplete(h);
1484	<	g.complete(1);
1485	<	checkCompletedNormally(h, 2);
1486	<
1487	<	f = new CompletableFuture<>();
1488	<	g = new CompletableFuture<>();
1489	<	h = f.thenCombineAsync(g, subtract);
1490	<	g.complete(1);
1491	<	checkIncomplete(h);
1492	<	f.complete(3);
1493	<	checkCompletedNormally(h, 2);
1494	<
1495	<	f = new CompletableFuture<>();
1496	<	g = new CompletableFuture<>();
1497	<	g.complete(1);
1498	<	f.complete(3);
1499	<	h = f.thenCombineAsync(g, subtract);
1500	<	checkCompletedNormally(h, 2);
1501	<	}
1502	<
1503	<	/**
1504	<	* thenCombineAsync result completes exceptionally after exceptional
1505	<	* completion of either source
1506	<	*/
1507	<	public void testThenCombineAsync2() {
1508	<	CompletableFuture<Integer> f, g, h;
1509	<
1510	<	f = new CompletableFuture<>();
1511	<	g = new CompletableFuture<>();
1512	<	h = f.thenCombineAsync(g, subtract);
1513	<	f.completeExceptionally(new CFException());
1514	<	checkIncomplete(h);
1515	<	g.complete(1);
1516	<	checkCompletedWithWrappedCFException(h);
1517	<
1518	<	f = new CompletableFuture<>();
1519	<	g = new CompletableFuture<>();
1520	<	h = f.thenCombineAsync(g, subtract);
1521	<	g.completeExceptionally(new CFException());
1522	<	checkIncomplete(h);
1523	<	f.complete(3);
1524	<	checkCompletedWithWrappedCFException(h);
1525	<
1526	<	f = new CompletableFuture<>();
1527	<	g = new CompletableFuture<>();
1528	<	g.completeExceptionally(new CFException());
1529	<	f.complete(3);
1530	<	h = f.thenCombineAsync(g, subtract);
1531	<	checkCompletedWithWrappedCFException(h);
1532	<	}
1533	<
1534	<	/**
1535	<	* thenCombineAsync result completes exceptionally if action does
1536	<	*/
1537	<	public void testThenCombineAsync3() {
1538	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1539	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1540	<	FailingBiFunction r = new FailingBiFunction();
1541	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, r);
1542	<	f.complete(one);
1543	<	checkIncomplete(g);
1544	<	assertFalse(r.ran);
1545	<	f2.complete(two);
1546	<	checkCompletedWithWrappedCFException(g);
1547	<	assertTrue(r.ran);
1548	<	}
1549	<
1550	<	/**
1551	<	* thenCombineAsync result completes exceptionally if either source cancelled
1552	<	*/
1553	<	public void testThenCombineAsync4() {
1554	<	CompletableFuture<Integer> f, g, h;
1555	<
1556	<	f = new CompletableFuture<>();
1557	<	g = new CompletableFuture<>();
1558	<	h = f.thenCombineAsync(g, subtract);
1559	<	assertTrue(f.cancel(true));
1560	<	checkIncomplete(h);
1561	<	g.complete(1);
1562	<	checkCompletedWithWrappedCancellationException(h);
1563	<
1564	<	f = new CompletableFuture<>();
1565	<	g = new CompletableFuture<>();
1566	<	h = f.thenCombineAsync(g, subtract);
1567	<	assertTrue(g.cancel(true));
1568	<	checkIncomplete(h);
1569	<	f.complete(3);
1570	<	checkCompletedWithWrappedCancellationException(h);
1571	<
1572	<	f = new CompletableFuture<>();
1573	<	g = new CompletableFuture<>();
1574	<	g.complete(3);
1575	<	assertTrue(f.cancel(true));
1576	<	h = f.thenCombineAsync(g, subtract);
1577	<	checkCompletedWithWrappedCancellationException(h);
1578	<
1579	<	f = new CompletableFuture<>();
1580	<	g = new CompletableFuture<>();
1581	<	f.complete(3);
1582	<	assertTrue(g.cancel(true));
1583	<	h = f.thenCombineAsync(g, subtract);
1584	<	checkCompletedWithWrappedCancellationException(h);
1585	<	}
1586	<
1587	<	/**
1588	<	* thenAcceptBothAsync result completes normally after normal
1589	<	* completion of sources
1590	<	*/
1591	<	public void testThenAcceptBothAsync() {
1592	<	CompletableFuture<Integer> f, g;
1593	<	CompletableFuture<Void> h;
1594	<	SubtractAction r;
1595	<
1596	<	f = new CompletableFuture<>();
1597	<	g = new CompletableFuture<>();
1598	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1599	<	f.complete(3);
1600	<	checkIncomplete(h);
1601	<	g.complete(1);
1602	<	checkCompletedNormally(h, null);
1603	<	assertEquals(r.value, 2);
1604	<
1605	<	f = new CompletableFuture<>();
1606	<	g = new CompletableFuture<>();
1607	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1608	<	g.complete(1);
1609	<	checkIncomplete(h);
1610	<	f.complete(3);
1611	<	checkCompletedNormally(h, null);
1612	<	assertEquals(r.value, 2);
1613	<
1614	<	f = new CompletableFuture<>();
1615	<	g = new CompletableFuture<>();
1616	<	g.complete(1);
1617	<	f.complete(3);
1618	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1619	<	checkCompletedNormally(h, null);
1620	<	assertEquals(r.value, 2);
1621	<	}
1622	<
1623	<	/**
1624	<	* thenAcceptBothAsync result completes exceptionally after exceptional
1625	<	* completion of source
1626	<	*/
1627	<	public void testThenAcceptBothAsync2() {
1628	<	CompletableFuture<Integer> f, g;
1629	<	CompletableFuture<Void> h;
1630	<	SubtractAction r;
1631	<
1632	<	f = new CompletableFuture<>();
1633	<	g = new CompletableFuture<>();
1634	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1635	<	f.completeExceptionally(new CFException());
1636	<	checkIncomplete(h);
1637	<	g.complete(1);
1638	<	checkCompletedWithWrappedCFException(h);
1639	<
1640	<	f = new CompletableFuture<>();
1641	<	g = new CompletableFuture<>();
1642	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1643	<	g.completeExceptionally(new CFException());
1644	<	checkIncomplete(h);
1645	<	f.complete(3);
1646	<	checkCompletedWithWrappedCFException(h);
1647	<
1648	<	f = new CompletableFuture<>();
1649	<	g = new CompletableFuture<>();
1650	<	f.complete(3);
1651	<	g.completeExceptionally(new CFException());
1652	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1653	<	checkCompletedWithWrappedCFException(h);
1654	<
1655	<	f = new CompletableFuture<>();
1656	<	g = new CompletableFuture<>();
1657	<	f.completeExceptionally(new CFException());
1658	<	g.complete(3);
1659	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1660	<	checkCompletedWithWrappedCFException(h);
1661	<	}
3038	>	checkCancelled(f);
3039	>	}}
3040
3041		/**
3042	<	* thenAcceptBothAsync result completes exceptionally if action does
3042	>	* thenCompose result completes exceptionally if the result of the action does
3043		*/
3044	<	public void testThenAcceptBothAsync3() {
3045	<	CompletableFuture<Integer> f, g;
3046	<	CompletableFuture<Void> h;
3047	<	FailingBiConsumer r;
3044	>	public void testThenCompose_actionReturnsFailingFuture() {
3045	>	for (ExecutionMode m : ExecutionMode.values())
3046	>	for (int order = 0; order < 6; order++)
3047	>	for (Integer v1 : new Integer[] { 1, null })
3048	>	{
3049	>	final CFException ex = new CFException();
3050	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3051	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
3052	>	final CompletableFuture<Integer> h;
3053	>	// Test all permutations of orders
3054	>	switch (order) {
3055	>	case 0:
3056	>	assertTrue(f.complete(v1));
3057	>	assertTrue(g.completeExceptionally(ex));
3058	>	h = m.thenCompose(f, (x -> g));
3059	>	break;
3060	>	case 1:
3061	>	assertTrue(f.complete(v1));
3062	>	h = m.thenCompose(f, (x -> g));
3063	>	assertTrue(g.completeExceptionally(ex));
3064	>	break;
3065	>	case 2:
3066	>	assertTrue(g.completeExceptionally(ex));
3067	>	assertTrue(f.complete(v1));
3068	>	h = m.thenCompose(f, (x -> g));
3069	>	break;
3070	>	case 3:
3071	>	assertTrue(g.completeExceptionally(ex));
3072	>	h = m.thenCompose(f, (x -> g));
3073	>	assertTrue(f.complete(v1));
3074	>	break;
3075	>	case 4:
3076	>	h = m.thenCompose(f, (x -> g));
3077	>	assertTrue(f.complete(v1));
3078	>	assertTrue(g.completeExceptionally(ex));
3079	>	break;
3080	>	case 5:
3081	>	h = m.thenCompose(f, (x -> g));
3082	>	assertTrue(f.complete(v1));
3083	>	assertTrue(g.completeExceptionally(ex));
3084	>	break;
3085	>	default: throw new AssertionError();
3086	>	}
3087
3088	<	f = new CompletableFuture<>();
3089	<	g = new CompletableFuture<>();
3090	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer());
3091	<	f.complete(3);
1675	<	checkIncomplete(h);
1676	<	g.complete(1);
1677	<	checkCompletedWithWrappedCFException(h);
3088	>	checkCompletedExceptionally(g, ex);
3089	>	checkCompletedWithWrappedException(h, ex);
3090	>	checkCompletedNormally(f, v1);
3091	>	}}
3092
3093	<	f = new CompletableFuture<>();
1680	<	g = new CompletableFuture<>();
1681	<	f.complete(3);
1682	<	g.complete(1);
1683	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer());
1684	<	checkCompletedWithWrappedCFException(h);
1685	<	}
3093	>	// other static methods
3094
3095		/**
3096	<	* thenAcceptBothAsync result completes exceptionally if either source cancelled
3096	>	* allOf(no component futures) returns a future completed normally
3097	>	* with the value null
3098		*/
3099	<	public void testThenAcceptBothAsync4() {
3100	<	CompletableFuture<Integer> f, g;
3101	<	CompletableFuture<Void> h;
1693	<	SubtractAction r;
1694	<
1695	<	f = new CompletableFuture<>();
1696	<	g = new CompletableFuture<>();
1697	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1698	<	assertTrue(f.cancel(true));
1699	<	checkIncomplete(h);
1700	<	g.complete(1);
1701	<	checkCompletedWithWrappedCancellationException(h);
1702	<
1703	<	f = new CompletableFuture<>();
1704	<	g = new CompletableFuture<>();
1705	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1706	<	assertTrue(g.cancel(true));
1707	<	checkIncomplete(h);
1708	<	f.complete(3);
1709	<	checkCompletedWithWrappedCancellationException(h);
1710	<
1711	<	f = new CompletableFuture<>();
1712	<	g = new CompletableFuture<>();
1713	<	f.complete(3);
1714	<	assertTrue(g.cancel(true));
1715	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1716	<	checkCompletedWithWrappedCancellationException(h);
1717	<
1718	<	f = new CompletableFuture<>();
1719	<	g = new CompletableFuture<>();
1720	<	assertTrue(f.cancel(true));
1721	<	g.complete(3);
1722	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1723	<	checkCompletedWithWrappedCancellationException(h);
3099	>	public void testAllOf_empty() throws Exception {
3100	>	CompletableFuture<Void> f = CompletableFuture.allOf();
3101	>	checkCompletedNormally(f, null);
3102		}
3103
3104		/**
3105	<	* runAfterBothAsync result completes normally after normal
3106	<	* completion of sources
3105	>	* allOf returns a future completed normally with the value null
3106	>	* when all components complete normally
3107		*/
3108	<	public void testRunAfterBothAsync() {
3109	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3110	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3111	<	Noop r = new Noop();
3112	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
3113	<	f.complete(one);
3114	<	checkIncomplete(g);
3115	<	f2.complete(two);
3116	<	checkCompletedNormally(g, null);
3117	<	assertTrue(r.ran);
3108	>	public void testAllOf_normal() 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 = 0; i < k; 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 exceptionally after exceptional
3127	<	* completion of source
3128	<	*/
3129	<	public void testRunAfterBothAsync2() {
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.completeExceptionally(new CFException());
3135	<	f2.complete(two);
3136	<	checkCompletedWithWrappedCFException(g);
3137	<
3138	<	r = new Noop();
3139	<	f = new CompletableFuture<>();
1757	<	f2 = new CompletableFuture<>();
1758	<	g = f.runAfterBothAsync(f2, r);
1759	<	f.complete(one);
1760	<	f2.completeExceptionally(new CFException());
1761	<	checkCompletedWithWrappedCFException(g);
3125	>	public void testAllOf_normal_backwards() throws Exception {
3126	>	for (int k = 1; k < 10; k++) {
3127	>	CompletableFuture<Integer>[] fs
3128	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3129	>	for (int i = 0; i < k; i++)
3130	>	fs[i] = new CompletableFuture<>();
3131	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3132	>	for (int i = k - 1; i >= 0; i--) {
3133	>	checkIncomplete(f);
3134	>	checkIncomplete(CompletableFuture.allOf(fs));
3135	>	fs[i].complete(one);
3136	>	}
3137	>	checkCompletedNormally(f, null);
3138	>	checkCompletedNormally(CompletableFuture.allOf(fs), null);
3139	>	}
3140		}
3141
3142	<	/**
3143	<	* runAfterBothAsync result completes exceptionally if action does
3144	<	*/
3145	<	public void testRunAfterBothAsync3() {
3146	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3147	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3148	<	FailingNoop r = new FailingNoop();
3149	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
3150	<	f.complete(one);
3151	<	checkIncomplete(g);
3152	<	f2.complete(two);
3153	<	checkCompletedWithWrappedCFException(g);
3142	>	public void testAllOf_exceptional() throws Exception {
3143	>	for (int k = 1; k < 10; k++) {
3144	>	CompletableFuture<Integer>[] fs
3145	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3146	>	CFException ex = new CFException();
3147	>	for (int i = 0; i < k; i++)
3148	>	fs[i] = new CompletableFuture<>();
3149	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3150	>	for (int i = 0; i < k; i++) {
3151	>	checkIncomplete(f);
3152	>	checkIncomplete(CompletableFuture.allOf(fs));
3153	>	if (i != k / 2) {
3154	>	fs[i].complete(i);
3155	>	checkCompletedNormally(fs[i], i);
3156	>	} else {
3157	>	fs[i].completeExceptionally(ex);
3158	>	checkCompletedExceptionally(fs[i], ex);
3159	>	}
3160	>	}
3161	>	checkCompletedWithWrappedException(f, ex);
3162	>	checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3163	>	}
3164		}
3165
3166		/**
3167	<	* runAfterBothAsync result completes exceptionally if either source cancelled
3167	>	* anyOf(no component futures) returns an incomplete future
3168		*/
3169	<	public void testRunAfterBothAsync4() {
3170	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3171	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3172	<	Noop r = new Noop();
3173	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1786	<	assertTrue(f.cancel(true));
1787	<	f2.complete(two);
1788	<	checkCompletedWithWrappedCancellationException(g);
3169	>	public void testAnyOf_empty() throws Exception {
3170	>	for (Integer v1 : new Integer[] { 1, null })
3171	>	{
3172	>	CompletableFuture<Object> f = CompletableFuture.anyOf();
3173	>	checkIncomplete(f);
3174
3175	<	r = new Noop();
3176	<	f = new CompletableFuture<>();
3177	<	f2 = new CompletableFuture<>();
1793	<	g = f.runAfterBothAsync(f2, r);
1794	<	f.complete(one);
1795	<	assertTrue(f2.cancel(true));
1796	<	checkCompletedWithWrappedCancellationException(g);
1797	<	}
3175	>	f.complete(v1);
3176	>	checkCompletedNormally(f, v1);
3177	>	}}
3178
3179		/**
3180	<	* applyToEitherAsync result completes normally after normal
3181	<	* completion of sources
3180	>	* anyOf returns a future completed normally with a value when
3181	>	* a component future does
3182		*/
3183	<	public void testApplyToEitherAsync() {
3184	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3185	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3186	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
3187	<	f.complete(one);
3188	<	checkCompletedNormally(g, two);
3189	<
3190	<	f = new CompletableFuture<>();
3191	<	f.complete(one);
3192	<	f2 = new CompletableFuture<>();
3193	<	g = f.applyToEitherAsync(f2, inc);
3194	<	checkCompletedNormally(g, two);
3183	>	public void testAnyOf_normal() throws Exception {
3184	>	for (int k = 0; k < 10; k++) {
3185	>	CompletableFuture[] fs = new CompletableFuture[k];
3186	>	for (int i = 0; i < k; i++)
3187	>	fs[i] = new CompletableFuture<>();
3188	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3189	>	checkIncomplete(f);
3190	>	for (int i = 0; i < k; i++) {
3191	>	fs[i].complete(i);
3192	>	checkCompletedNormally(f, 0);
3193	>	int x = (int) CompletableFuture.anyOf(fs).join();
3194	>	assertTrue(0 <= x && x <= i);
3195	>	}
3196	>	}
3197		}
3198	<
3199	<	/**
3200	<	* applyToEitherAsync result completes exceptionally after exceptional
3201	<	* completion of source
3202	<	*/
3203	<	public void testApplyToEitherAsync2() {
3204	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3205	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3206	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
3207	<	f.completeExceptionally(new CFException());
3208	<	checkCompletedWithWrappedCFException(g);
3209	<
3210	<	f = new CompletableFuture<>();
3211	<	f2 = new CompletableFuture<>();
1830	<	f2.completeExceptionally(new CFException());
1831	<	g = f.applyToEitherAsync(f2, inc);
1832	<	f.complete(one);
1833	<	checkCompletedWithWrappedCFException(g);
3198	>	public void testAnyOf_normal_backwards() throws Exception {
3199	>	for (int k = 0; k < 10; k++) {
3200	>	CompletableFuture[] fs = new CompletableFuture[k];
3201	>	for (int i = 0; i < k; i++)
3202	>	fs[i] = new CompletableFuture<>();
3203	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3204	>	checkIncomplete(f);
3205	>	for (int i = k - 1; i >= 0; i--) {
3206	>	fs[i].complete(i);
3207	>	checkCompletedNormally(f, k - 1);
3208	>	int x = (int) CompletableFuture.anyOf(fs).join();
3209	>	assertTrue(i <= x && x <= k - 1);
3210	>	}
3211	>	}
3212		}
3213
3214		/**
3215	<	* applyToEitherAsync result completes exceptionally if action does
3215	>	* anyOf result completes exceptionally when any component does.
3216		*/
3217	<	public void testApplyToEitherAsync3() {
3218	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3219	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3220	<	FailingFunction r = new FailingFunction();
3221	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r);
3222	<	f.complete(one);
3223	<	checkCompletedWithWrappedCFException(g);
3217	>	public void testAnyOf_exceptional() throws Exception {
3218	>	for (int k = 0; k < 10; k++) {
3219	>	CompletableFuture[] fs = new CompletableFuture[k];
3220	>	CFException[] exs = new CFException[k];
3221	>	for (int i = 0; i < k; i++) {
3222	>	fs[i] = new CompletableFuture<>();
3223	>	exs[i] = new CFException();
3224	>	}
3225	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3226	>	checkIncomplete(f);
3227	>	for (int i = 0; i < k; i++) {
3228	>	fs[i].completeExceptionally(exs[i]);
3229	>	checkCompletedWithWrappedException(f, exs[0]);
3230	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3231	>	}
3232	>	}
3233		}
3234
3235	<	/**
3236	<	* applyToEitherAsync result completes exceptionally if either source cancelled
3237	<	*/
3238	<	public void testApplyToEitherAsync4() {
3239	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3240	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3241	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
3242	<	assertTrue(f.cancel(true));
3243	<	checkCompletedWithWrappedCancellationException(g);
3244	<
3245	<	f = new CompletableFuture<>();
3246	<	f2 = new CompletableFuture<>();
3247	<	assertTrue(f2.cancel(true));
3248	<	g = f.applyToEitherAsync(f2, inc);
3249	<	checkCompletedWithWrappedCancellationException(g);
3235	>	public void testAnyOf_exceptional_backwards() throws Exception {
3236	>	for (int k = 0; k < 10; k++) {
3237	>	CompletableFuture[] fs = new CompletableFuture[k];
3238	>	CFException[] exs = new CFException[k];
3239	>	for (int i = 0; i < k; i++) {
3240	>	fs[i] = new CompletableFuture<>();
3241	>	exs[i] = new CFException();
3242	>	}
3243	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3244	>	checkIncomplete(f);
3245	>	for (int i = k - 1; i >= 0; i--) {
3246	>	fs[i].completeExceptionally(exs[i]);
3247	>	checkCompletedWithWrappedException(f, exs[k - 1]);
3248	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3249	>	}
3250	>	}
3251		}
3252
3253		/**
3254	<	* acceptEitherAsync result completes normally after normal
1867	<	* completion of sources
3254	>	* Completion methods throw NullPointerException with null arguments
3255		*/
3256	<	public void testAcceptEitherAsync() {
3256	>	@SuppressWarnings("FutureReturnValueIgnored")
3257	>	public void testNPE() {
3258		CompletableFuture<Integer> f = new CompletableFuture<>();
3259	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3260	<	IncAction r = new IncAction();
3261	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1874	<	f.complete(one);
1875	<	checkCompletedNormally(g, null);
1876	<	assertEquals(r.value, 2);
3259	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3260	>	CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
3261	>	ThreadExecutor exec = new ThreadExecutor();
3262
3263	<	r = new IncAction();
3264	<	f = new CompletableFuture<>();
3265	<	f.complete(one);
3266	<	f2 = new CompletableFuture<>();
3267	<	g = f.acceptEitherAsync(f2, r);
3268	<	checkCompletedNormally(g, null);
3269	<	assertEquals(r.value, 2);
3270	<	}
3263	>	Runnable[] throwingActions = {
3264	>	() -> CompletableFuture.supplyAsync(null),
3265	>	() -> CompletableFuture.supplyAsync(null, exec),
3266	>	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3267	>
3268	>	() -> CompletableFuture.runAsync(null),
3269	>	() -> CompletableFuture.runAsync(null, exec),
3270	>	() -> CompletableFuture.runAsync(() -> {}, null),
3271	>
3272	>	() -> f.completeExceptionally(null),
3273	>
3274	>	() -> f.thenApply(null),
3275	>	() -> f.thenApplyAsync(null),
3276	>	() -> f.thenApplyAsync(x -> x, null),
3277	>	() -> f.thenApplyAsync(null, exec),
3278	>
3279	>	() -> f.thenAccept(null),
3280	>	() -> f.thenAcceptAsync(null),
3281	>	() -> f.thenAcceptAsync(x -> {} , null),
3282	>	() -> f.thenAcceptAsync(null, exec),
3283	>
3284	>	() -> f.thenRun(null),
3285	>	() -> f.thenRunAsync(null),
3286	>	() -> f.thenRunAsync(() -> {} , null),
3287	>	() -> f.thenRunAsync(null, exec),
3288	>
3289	>	() -> f.thenCombine(g, null),
3290	>	() -> f.thenCombineAsync(g, null),
3291	>	() -> f.thenCombineAsync(g, null, exec),
3292	>	() -> f.thenCombine(nullFuture, (x, y) -> x),
3293	>	() -> f.thenCombineAsync(nullFuture, (x, y) -> x),
3294	>	() -> f.thenCombineAsync(nullFuture, (x, y) -> x, exec),
3295	>	() -> f.thenCombineAsync(g, (x, y) -> x, null),
3296	>
3297	>	() -> f.thenAcceptBoth(g, null),
3298	>	() -> f.thenAcceptBothAsync(g, null),
3299	>	() -> f.thenAcceptBothAsync(g, null, exec),
3300	>	() -> f.thenAcceptBoth(nullFuture, (x, y) -> {}),
3301	>	() -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}),
3302	>	() -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}, exec),
3303	>	() -> f.thenAcceptBothAsync(g, (x, y) -> {}, null),
3304	>
3305	>	() -> f.runAfterBoth(g, null),
3306	>	() -> f.runAfterBothAsync(g, null),
3307	>	() -> f.runAfterBothAsync(g, null, exec),
3308	>	() -> f.runAfterBoth(nullFuture, () -> {}),
3309	>	() -> f.runAfterBothAsync(nullFuture, () -> {}),
3310	>	() -> f.runAfterBothAsync(nullFuture, () -> {}, exec),
3311	>	() -> f.runAfterBothAsync(g, () -> {}, null),
3312	>
3313	>	() -> f.applyToEither(g, null),
3314	>	() -> f.applyToEitherAsync(g, null),
3315	>	() -> f.applyToEitherAsync(g, null, exec),
3316	>	() -> f.applyToEither(nullFuture, x -> x),
3317	>	() -> f.applyToEitherAsync(nullFuture, x -> x),
3318	>	() -> f.applyToEitherAsync(nullFuture, x -> x, exec),
3319	>	() -> f.applyToEitherAsync(g, x -> x, null),
3320	>
3321	>	() -> f.acceptEither(g, null),
3322	>	() -> f.acceptEitherAsync(g, null),
3323	>	() -> f.acceptEitherAsync(g, null, exec),
3324	>	() -> f.acceptEither(nullFuture, x -> {}),
3325	>	() -> f.acceptEitherAsync(nullFuture, x -> {}),
3326	>	() -> f.acceptEitherAsync(nullFuture, x -> {}, exec),
3327	>	() -> f.acceptEitherAsync(g, x -> {}, null),
3328	>
3329	>	() -> f.runAfterEither(g, null),
3330	>	() -> f.runAfterEitherAsync(g, null),
3331	>	() -> f.runAfterEitherAsync(g, null, exec),
3332	>	() -> f.runAfterEither(nullFuture, () -> {}),
3333	>	() -> f.runAfterEitherAsync(nullFuture, () -> {}),
3334	>	() -> f.runAfterEitherAsync(nullFuture, () -> {}, exec),
3335	>	() -> f.runAfterEitherAsync(g, () -> {}, null),
3336	>
3337	>	() -> f.thenCompose(null),
3338	>	() -> f.thenComposeAsync(null),
3339	>	() -> f.thenComposeAsync(new CompletableFutureInc(ExecutionMode.EXECUTOR), null),
3340	>	() -> f.thenComposeAsync(null, exec),
3341	>
3342	>	() -> f.exceptionally(null),
3343	>
3344	>	() -> f.handle(null),
3345	>
3346	>	() -> CompletableFuture.allOf((CompletableFuture<?>)null),
3347	>	() -> CompletableFuture.allOf((CompletableFuture<?>[])null),
3348	>	() -> CompletableFuture.allOf(f, null),
3349	>	() -> CompletableFuture.allOf(null, f),
3350	>
3351	>	() -> CompletableFuture.anyOf((CompletableFuture<?>)null),
3352	>	() -> CompletableFuture.anyOf((CompletableFuture<?>[])null),
3353	>	() -> CompletableFuture.anyOf(f, null),
3354	>	() -> CompletableFuture.anyOf(null, f),
3355	>
3356	>	() -> f.obtrudeException(null),
3357	>
3358	>	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3359	>	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3360	>	() -> CompletableFuture.delayedExecutor(1L, null),
3361
3362	<	/**
3363	<	* acceptEitherAsync result completes exceptionally after exceptional
1889	<	* completion of source
1890	<	*/
1891	<	public void testAcceptEitherAsync2() {
1892	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1893	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1894	<	IncAction r = new IncAction();
1895	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1896	<	f.completeExceptionally(new CFException());
1897	<	checkCompletedWithWrappedCFException(g);
3362	>	() -> f.orTimeout(1L, null),
3363	>	() -> f.completeOnTimeout(42, 1L, null),
3364
3365	<	r = new IncAction();
3366	<	f = new CompletableFuture<>();
3367	<	f2 = new CompletableFuture<>();
1902	<	f2.completeExceptionally(new CFException());
1903	<	g = f.acceptEitherAsync(f2, r);
1904	<	f.complete(one);
1905	<	checkCompletedWithWrappedCFException(g);
1906	<	}
3365	>	() -> CompletableFuture.failedFuture(null),
3366	>	() -> CompletableFuture.failedStage(null),
3367	>	};
3368
3369	<	/**
3370	<	* acceptEitherAsync result completes exceptionally if action does
1910	<	*/
1911	<	public void testAcceptEitherAsync3() {
1912	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1913	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1914	<	FailingConsumer r = new FailingConsumer();
1915	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1916	<	f.complete(one);
1917	<	checkCompletedWithWrappedCFException(g);
3369	>	assertThrows(NullPointerException.class, throwingActions);
3370	>	assertEquals(0, exec.count.get());
3371		}
3372
3373		/**
3374	<	* acceptEitherAsync result completes exceptionally if either
1922	<	* source cancelled
3374	>	* Test submissions to an executor that rejects all tasks.
3375		*/
3376	<	public void testAcceptEitherAsync4() {
3377	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3378	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3379	<	IncAction r = new IncAction();
3380	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
3381	<	assertTrue(f.cancel(true));
3382	<	checkCompletedWithWrappedCancellationException(g);
3383	<
3384	<	r = new IncAction();
3385	<	f = new CompletableFuture<>();
3386	<	f2 = new CompletableFuture<>();
3387	<	assertTrue(f2.cancel(true));
3388	<	g = f.acceptEitherAsync(f2, r);
3389	<	checkCompletedWithWrappedCancellationException(g);
3390	<	}
3376	>	public void testRejectingExecutor() {
3377	>	for (Integer v : new Integer[] { 1, null })
3378	>	{
3379	>	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3380	>
3381	>	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3382	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3383	>
3384	>	List<CompletableFuture<?>> futures = new ArrayList<>();
3385	>
3386	>	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3387	>	srcs.add(complete);
3388	>	srcs.add(incomplete);
3389	>
3390	>	for (CompletableFuture<Integer> src : srcs) {
3391	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3392	>	fs.add(src.thenRunAsync(() -> {}, e));
3393	>	fs.add(src.thenAcceptAsync(z -> {}, e));
3394	>	fs.add(src.thenApplyAsync(z -> z, e));
3395	>
3396	>	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3397	>	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3398	>	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3399	>
3400	>	fs.add(src.applyToEitherAsync(src, z -> z, e));
3401	>	fs.add(src.acceptEitherAsync(src, z -> {}, e));
3402	>	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3403	>
3404	>	fs.add(src.thenComposeAsync(z -> null, e));
3405	>	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3406	>	fs.add(src.handleAsync((z, t) -> null, e));
3407	>
3408	>	for (CompletableFuture<?> future : fs) {
3409	>	if (src.isDone())
3410	>	checkCompletedWithWrappedException(future, e.ex);
3411	>	else
3412	>	checkIncomplete(future);
3413	>	}
3414	>	futures.addAll(fs);
3415	>	}
3416
3417	<	/**
3418	<	* runAfterEitherAsync result completes normally after normal
1942	<	* completion of sources
1943	<	*/
1944	<	public void testRunAfterEitherAsync() {
1945	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1946	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1947	<	Noop r = new Noop();
1948	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1949	<	f.complete(one);
1950	<	checkCompletedNormally(g, null);
1951	<	assertTrue(r.ran);
3417	>	{
3418	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3419
3420	<	r = new Noop();
3421	<	f = new CompletableFuture<>();
1955	<	f.complete(one);
1956	<	f2 = new CompletableFuture<>();
1957	<	g = f.runAfterEitherAsync(f2, r);
1958	<	checkCompletedNormally(g, null);
1959	<	assertTrue(r.ran);
1960	<	}
3420	>	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3421	>	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3422
3423	<	/**
3424	<	* runAfterEitherAsync result completes exceptionally after exceptional
1964	<	* completion of source
1965	<	*/
1966	<	public void testRunAfterEitherAsync2() {
1967	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1968	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1969	<	Noop r = new Noop();
1970	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1971	<	f.completeExceptionally(new CFException());
1972	<	checkCompletedWithWrappedCFException(g);
3423	>	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3424	>	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3425
3426	<	r = new Noop();
3427	<	f = new CompletableFuture<>();
1976	<	f2 = new CompletableFuture<>();
1977	<	f2.completeExceptionally(new CFException());
1978	<	g = f.runAfterEitherAsync(f2, r);
1979	<	f.complete(one);
1980	<	checkCompletedWithWrappedCFException(g);
1981	<	}
3426	>	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3427	>	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3428
3429	<	/**
3430	<	* runAfterEitherAsync result completes exceptionally if action does
3431	<	*/
3432	<	public void testRunAfterEitherAsync3() {
1987	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1988	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1989	<	FailingNoop r = new FailingNoop();
1990	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1991	<	f.complete(one);
1992	<	checkCompletedWithWrappedCFException(g);
1993	<	}
3429	>	for (CompletableFuture<?> future : fs)
3430	>	checkIncomplete(future);
3431	>	futures.addAll(fs);
3432	>	}
3433
3434	<	/**
3435	<	* runAfterEitherAsync result completes exceptionally if either
1997	<	* source cancelled
1998	<	*/
1999	<	public void testRunAfterEitherAsync4() {
2000	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2001	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2002	<	Noop r = new Noop();
2003	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
2004	<	assertTrue(f.cancel(true));
2005	<	checkCompletedWithWrappedCancellationException(g);
3434	>	{
3435	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3436
3437	<	r = new Noop();
3438	<	f = new CompletableFuture<>();
2009	<	f2 = new CompletableFuture<>();
2010	<	assertTrue(f2.cancel(true));
2011	<	g = f.runAfterEitherAsync(f2, r);
2012	<	checkCompletedWithWrappedCancellationException(g);
2013	<	}
3437	>	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3438	>	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3439
3440	<	/**
3441	<	* thenComposeAsync result completes normally after normal
2017	<	* completion of source
2018	<	*/
2019	<	public void testThenComposeAsync() {
2020	<	CompletableFuture<Integer> f, g;
2021	<	CompletableFutureInc r;
3440	>	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3441	>	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3442
3443	<	f = new CompletableFuture<>();
3444	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2025	<	f.complete(one);
2026	<	checkCompletedNormally(g, two);
3443	>	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3444	>	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3445
3446	<	f = new CompletableFuture<>();
3447	<	f.complete(one);
3448	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
3449	<	checkCompletedNormally(g, two);
2032	<	}
3446	>	for (CompletableFuture<?> future : fs)
3447	>	checkCompletedWithWrappedException(future, e.ex);
3448	>	futures.addAll(fs);
3449	>	}
3450
3451	<	/**
2035	<	* thenComposeAsync result completes exceptionally after
2036	<	* exceptional completion of source
2037	<	*/
2038	<	public void testThenComposeAsync2() {
2039	<	CompletableFuture<Integer> f, g;
2040	<	CompletableFutureInc r;
3451	>	incomplete.complete(v);
3452
3453	<	f = new CompletableFuture<>();
3454	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2044	<	f.completeExceptionally(new CFException());
2045	<	checkCompletedWithWrappedCFException(g);
2046	<	assertFalse(r.ran);
3453	>	for (CompletableFuture<?> future : futures)
3454	>	checkCompletedWithWrappedException(future, e.ex);
3455
3456	<	f = new CompletableFuture<>();
3457	<	f.completeExceptionally(new CFException());
2050	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2051	<	checkCompletedWithWrappedCFException(g);
2052	<	assertFalse(r.ran);
2053	<	}
3456	>	assertEquals(futures.size(), e.count.get());
3457	>	}}
3458
3459		/**
3460	<	* thenComposeAsync result completes exceptionally if action does
3460	>	* Test submissions to an executor that rejects all tasks, but
3461	>	* should never be invoked because the dependent future is
3462	>	* explicitly completed.
3463		*/
3464	<	public void testThenComposeAsync3() {
3465	<	CompletableFuture<Integer> f, g;
3466	<	FailingCompletableFutureFunction r;
3464	>	public void testRejectingExecutorNeverInvoked() {
3465	>	for (Integer v : new Integer[] { 1, null })
3466	>	{
3467	>	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3468
3469	<	f = new CompletableFuture<>();
3470	<	g = f.thenComposeAsync(r = new FailingCompletableFutureFunction());
2064	<	f.complete(one);
2065	<	checkCompletedWithWrappedCFException(g);
3469	>	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3470	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3471
3472	<	f = new CompletableFuture<>();
2068	<	f.complete(one);
2069	<	g = f.thenComposeAsync(r = new FailingCompletableFutureFunction());
2070	<	checkCompletedWithWrappedCFException(g);
2071	<	}
3472	>	List<CompletableFuture<?>> futures = new ArrayList<>();
3473
3474	<	/**
3475	<	* thenComposeAsync result completes exceptionally if source cancelled
3476	<	*/
2076	<	public void testThenComposeAsync4() {
2077	<	CompletableFuture<Integer> f, g;
2078	<	CompletableFutureInc r;
3474	>	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3475	>	srcs.add(complete);
3476	>	srcs.add(incomplete);
3477
3478	<	f = new CompletableFuture<>();
3479	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
3480	<	assertTrue(f.cancel(true));
3481	<	checkCompletedWithWrappedCancellationException(g);
3478	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3479	>	fs.add(incomplete.thenRunAsync(() -> {}, e));
3480	>	fs.add(incomplete.thenAcceptAsync(z -> {}, e));
3481	>	fs.add(incomplete.thenApplyAsync(z -> z, e));
3482
3483	<	f = new CompletableFuture<>();
3484	<	assertTrue(f.cancel(true));
3485	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2088	<	checkCompletedWithWrappedCancellationException(g);
2089	<	}
3483	>	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3484	>	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3485	>	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3486
3487	+	fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e));
3488	+	fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e));
3489	+	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3490
3491	<	// async with explicit executors
3491	>	fs.add(incomplete.thenComposeAsync(z -> null, e));
3492	>	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3493	>	fs.add(incomplete.handleAsync((z, t) -> null, e));
3494
3495	<	/**
3496	<	* thenRunAsync result completes normally after normal completion of source
2096	<	*/
2097	<	public void testThenRunAsyncE() {
2098	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2099	<	Noop r = new Noop();
2100	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2101	<	f.complete(null);
2102	<	checkCompletedNormally(g, null);
3495	>	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3496	>	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3497
3498	<	// reordered version
3499	<	f = new CompletableFuture<>();
2106	<	f.complete(null);
2107	<	r = new Noop();
2108	<	g = f.thenRunAsync(r, new ThreadExecutor());
2109	<	checkCompletedNormally(g, null);
2110	<	}
3498	>	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3499	>	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3500
3501	<	/**
3502	<	* thenRunAsync result completes exceptionally after exceptional
2114	<	* completion of source
2115	<	*/
2116	<	public void testThenRunAsync2E() {
2117	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2118	<	Noop r = new Noop();
2119	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2120	<	f.completeExceptionally(new CFException());
2121	<	try {
2122	<	g.join();
2123	<	shouldThrow();
2124	<	} catch (Exception ok) {
2125	<	}
2126	<	checkCompletedWithWrappedCFException(g);
2127	<	}
3501	>	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3502	>	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3503
3504	<	/**
3505	<	* thenRunAsync result completes exceptionally if action does
2131	<	*/
2132	<	public void testThenRunAsync3E() {
2133	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2134	<	FailingNoop r = new FailingNoop();
2135	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2136	<	f.complete(null);
2137	<	checkCompletedWithWrappedCFException(g);
2138	<	}
3504	>	for (CompletableFuture<?> future : fs)
3505	>	checkIncomplete(future);
3506
3507	<	/**
3508	<	* thenRunAsync result completes exceptionally if source cancelled
2142	<	*/
2143	<	public void testThenRunAsync4E() {
2144	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2145	<	Noop r = new Noop();
2146	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2147	<	assertTrue(f.cancel(true));
2148	<	checkCompletedWithWrappedCancellationException(g);
2149	<	}
3507	>	for (CompletableFuture<?> future : fs)
3508	>	future.complete(null);
3509
3510	<	/**
2152	<	* thenApplyAsync result completes normally after normal completion of source
2153	<	*/
2154	<	public void testThenApplyAsyncE() {
2155	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2156	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
2157	<	f.complete(one);
2158	<	checkCompletedNormally(g, two);
2159	<	}
3510	>	incomplete.complete(v);
3511
3512	<	/**
3513	<	* thenApplyAsync result completes exceptionally after exceptional
2163	<	* completion of source
2164	<	*/
2165	<	public void testThenApplyAsync2E() {
2166	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2167	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
2168	<	f.completeExceptionally(new CFException());
2169	<	checkCompletedWithWrappedCFException(g);
2170	<	}
3512	>	for (CompletableFuture<?> future : fs)
3513	>	checkCompletedNormally(future, null);
3514
3515	<	/**
3516	<	* thenApplyAsync result completes exceptionally if action does
2174	<	*/
2175	<	public void testThenApplyAsync3E() {
2176	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2177	<	FailingFunction r = new FailingFunction();
2178	<	CompletableFuture<Integer> g = f.thenApplyAsync(r, new ThreadExecutor());
2179	<	f.complete(null);
2180	<	checkCompletedWithWrappedCFException(g);
2181	<	}
3515	>	assertEquals(0, e.count.get());
3516	>	}}
3517
3518		/**
3519	<	* thenApplyAsync result completes exceptionally if source cancelled
3519	>	* toCompletableFuture returns this CompletableFuture.
3520		*/
3521	<	public void testThenApplyAsync4E() {
3521	>	public void testToCompletableFuture() {
3522		CompletableFuture<Integer> f = new CompletableFuture<>();
3523	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
2189	<	assertTrue(f.cancel(true));
2190	<	checkCompletedWithWrappedCancellationException(g);
3523	>	assertSame(f, f.toCompletableFuture());
3524		}
3525
3526	<	/**
2194	<	* thenAcceptAsync result completes normally after normal
2195	<	* completion of source
2196	<	*/
2197	<	public void testThenAcceptAsyncE() {
2198	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2199	<	IncAction r = new IncAction();
2200	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
2201	<	f.complete(one);
2202	<	checkCompletedNormally(g, null);
2203	<	assertEquals(r.value, 2);
2204	<	}
3526	>	// jdk9
3527
3528		/**
3529	<	* thenAcceptAsync result completes exceptionally after exceptional
2208	<	* completion of source
3529	>	* newIncompleteFuture returns an incomplete CompletableFuture
3530		*/
3531	<	public void testThenAcceptAsync2E() {
3531	>	public void testNewIncompleteFuture() {
3532	>	for (Integer v1 : new Integer[] { 1, null })
3533	>	{
3534		CompletableFuture<Integer> f = new CompletableFuture<>();
3535	<	IncAction r = new IncAction();
3536	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3537	<	f.completeExceptionally(new CFException());
3538	<	checkCompletedWithWrappedCFException(g);
3539	<	}
3535	>	CompletableFuture<Integer> g = f.newIncompleteFuture();
3536	>	checkIncomplete(f);
3537	>	checkIncomplete(g);
3538	>	f.complete(v1);
3539	>	checkCompletedNormally(f, v1);
3540	>	checkIncomplete(g);
3541	>	g.complete(v1);
3542	>	checkCompletedNormally(g, v1);
3543	>	assertSame(g.getClass(), CompletableFuture.class);
3544	>	}}
3545
3546		/**
3547	<	* thenAcceptAsync result completes exceptionally if action does
3547	>	* completedStage returns a completed CompletionStage
3548		*/
3549	<	public void testThenAcceptAsync3E() {
3550	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3551	<	FailingConsumer r = new FailingConsumer();
3552	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3553	<	f.complete(null);
3554	<	checkCompletedWithWrappedCFException(g);
3549	>	public void testCompletedStage() {
3550	>	AtomicInteger x = new AtomicInteger(0);
3551	>	AtomicReference<Throwable> r = new AtomicReference<>();
3552	>	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3553	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3554	>	assertEquals(x.get(), 1);
3555	>	assertNull(r.get());
3556		}
3557
3558		/**
3559	<	* thenAcceptAsync result completes exceptionally if source cancelled
3559	>	* defaultExecutor by default returns the commonPool if
3560	>	* it supports more than one thread.
3561		*/
3562	<	public void testThenAcceptAsync4E() {
3562	>	public void testDefaultExecutor() {
3563		CompletableFuture<Integer> f = new CompletableFuture<>();
3564	<	IncAction r = new IncAction();
3565	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3566	<	assertTrue(f.cancel(true));
3567	<	checkCompletedWithWrappedCancellationException(g);
3564	>	Executor e = f.defaultExecutor();
3565	>	Executor c = ForkJoinPool.commonPool();
3566	>	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3567	>	assertSame(e, c);
3568	>	else
3569	>	assertNotSame(e, c);
3570		}
3571
3572		/**
3573	<	* thenCombineAsync result completes normally after normal
3574	<	* completion of sources
3573	>	* failedFuture returns a CompletableFuture completed
3574	>	* exceptionally with the given Exception
3575		*/
3576	<	public void testThenCombineAsyncE() {
3577	<	CompletableFuture<Integer> f, g, h;
3578	<	ThreadExecutor e = new ThreadExecutor();
3579	<	int count = 0;
2248	<
2249	<	f = new CompletableFuture<>();
2250	<	g = new CompletableFuture<>();
2251	<	h = f.thenCombineAsync(g, subtract, e);
2252	<	f.complete(3);
2253	<	checkIncomplete(h);
2254	<	g.complete(1);
2255	<	checkCompletedNormally(h, 2);
2256	<	assertEquals(++count, e.count.get());
2257	<
2258	<	f = new CompletableFuture<>();
2259	<	g = new CompletableFuture<>();
2260	<	h = f.thenCombineAsync(g, subtract, e);
2261	<	g.complete(1);
2262	<	checkIncomplete(h);
2263	<	f.complete(3);
2264	<	checkCompletedNormally(h, 2);
2265	<	assertEquals(++count, e.count.get());
2266	<
2267	<	f = new CompletableFuture<>();
2268	<	g = new CompletableFuture<>();
2269	<	g.complete(1);
2270	<	f.complete(3);
2271	<	h = f.thenCombineAsync(g, subtract, e);
2272	<	checkCompletedNormally(h, 2);
2273	<	assertEquals(++count, e.count.get());
3576	>	public void testFailedFuture() {
3577	>	CFException ex = new CFException();
3578	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3579	>	checkCompletedExceptionally(f, ex);
3580		}
3581
3582		/**
3583	<	* thenCombineAsync result completes exceptionally after exceptional
2278	<	* completion of either source
3583	>	* failedFuture(null) throws NPE
3584		*/
3585	<	public void testThenCombineAsync2E() {
3586	<	CompletableFuture<Integer> f, g, h;
3587	<	ThreadExecutor e = new ThreadExecutor();
3588	<	int count = 0;
3589	<
2285	<	f = new CompletableFuture<>();
2286	<	g = new CompletableFuture<>();
2287	<	h = f.thenCombineAsync(g, subtract, e);
2288	<	f.completeExceptionally(new CFException());
2289	<	checkIncomplete(h);
2290	<	g.complete(1);
2291	<	checkCompletedWithWrappedCFException(h);
2292	<
2293	<	f = new CompletableFuture<>();
2294	<	g = new CompletableFuture<>();
2295	<	h = f.thenCombineAsync(g, subtract, e);
2296	<	g.completeExceptionally(new CFException());
2297	<	checkIncomplete(h);
2298	<	f.complete(3);
2299	<	checkCompletedWithWrappedCFException(h);
2300	<
2301	<	f = new CompletableFuture<>();
2302	<	g = new CompletableFuture<>();
2303	<	g.completeExceptionally(new CFException());
2304	<	h = f.thenCombineAsync(g, subtract, e);
2305	<	checkIncomplete(h);
2306	<	f.complete(3);
2307	<	checkCompletedWithWrappedCFException(h);
2308	<
2309	<	assertEquals(0, e.count.get());
3585	>	public void testFailedFuture_null() {
3586	>	try {
3587	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3588	>	shouldThrow();
3589	>	} catch (NullPointerException success) {}
3590		}
3591
3592		/**
3593	<	* thenCombineAsync result completes exceptionally if action does
3593	>	* copy returns a CompletableFuture that is completed normally,
3594	>	* with the same value, when source is.
3595		*/
3596	<	public void testThenCombineAsync3E() {
3596	>	public void testCopy_normalCompletion() {
3597	>	for (boolean createIncomplete : new boolean[] { true, false })
3598	>	for (Integer v1 : new Integer[] { 1, null })
3599	>	{
3600		CompletableFuture<Integer> f = new CompletableFuture<>();
3601	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3602	<	FailingBiFunction r = new FailingBiFunction();
3603	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, r, new ThreadExecutor());
3604	<	f.complete(one);
3605	<	checkIncomplete(g);
3606	<	assertFalse(r.ran);
3607	<	f2.complete(two);
3608	<	checkCompletedWithWrappedCFException(g);
3609	<	assertTrue(r.ran);
3610	<	}
3611	<
3612	<	/**
3613	<	* thenCombineAsync result completes exceptionally if either source cancelled
3614	<	*/
3615	<	public void testThenCombineAsync4E() {
3616	<	CompletableFuture<Integer> f, g, h;
3617	<	ThreadExecutor e = new ThreadExecutor();
3618	<
3619	<	f = new CompletableFuture<>();
3620	<	g = new CompletableFuture<>();
3621	<	h = f.thenCombineAsync(g, subtract, e);
3622	<	assertTrue(f.cancel(true));
3623	<	checkIncomplete(h);
3624	<	g.complete(1);
3625	<	checkCompletedWithWrappedCancellationException(h);
3626	<
3627	<	f = new CompletableFuture<>();
3628	<	g = new CompletableFuture<>();
3629	<	h = f.thenCombineAsync(g, subtract, e);
3630	<	assertTrue(g.cancel(true));
2347	<	checkIncomplete(h);
2348	<	f.complete(3);
2349	<	checkCompletedWithWrappedCancellationException(h);
2350	<
2351	<	f = new CompletableFuture<>();
2352	<	g = new CompletableFuture<>();
2353	<	assertTrue(g.cancel(true));
2354	<	h = f.thenCombineAsync(g, subtract, e);
2355	<	checkIncomplete(h);
2356	<	f.complete(3);
2357	<	checkCompletedWithWrappedCancellationException(h);
2358	<
2359	<	f = new CompletableFuture<>();
2360	<	g = new CompletableFuture<>();
2361	<	assertTrue(f.cancel(true));
2362	<	assertTrue(g.cancel(true));
2363	<	h = f.thenCombineAsync(g, subtract, e);
2364	<	checkCompletedWithWrappedCancellationException(h);
2365	<
2366	<	assertEquals(0, e.count.get());
2367	<	}
2368	<
2369	<	/**
2370	<	* thenAcceptBothAsync result completes normally after normal
2371	<	* completion of sources
2372	<	*/
2373	<	public void testThenAcceptBothAsyncE() {
2374	<	CompletableFuture<Integer> f, g;
2375	<	CompletableFuture<Void> h;
2376	<	SubtractAction r;
2377	<	ThreadExecutor e = new ThreadExecutor();
2378	<
2379	<	f = new CompletableFuture<>();
2380	<	g = new CompletableFuture<>();
2381	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2382	<	f.complete(3);
2383	<	checkIncomplete(h);
2384	<	g.complete(1);
2385	<	checkCompletedNormally(h, null);
2386	<	assertEquals(r.value, 2);
2387	<
2388	<	f = new CompletableFuture<>();
2389	<	g = new CompletableFuture<>();
2390	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2391	<	g.complete(1);
2392	<	checkIncomplete(h);
2393	<	f.complete(3);
2394	<	checkCompletedNormally(h, null);
2395	<	assertEquals(r.value, 2);
2396	<
2397	<	f = new CompletableFuture<>();
2398	<	g = new CompletableFuture<>();
2399	<	g.complete(1);
2400	<	f.complete(3);
2401	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2402	<	checkCompletedNormally(h, null);
2403	<	assertEquals(r.value, 2);
2404	<
2405	<	assertEquals(3, e.count.get());
2406	<	}
2407	<
2408	<	/**
2409	<	* thenAcceptBothAsync result completes exceptionally after exceptional
2410	<	* completion of source
2411	<	*/
2412	<	public void testThenAcceptBothAsync2E() {
2413	<	CompletableFuture<Integer> f, g;
2414	<	CompletableFuture<Void> h;
2415	<	SubtractAction r;
2416	<	ThreadExecutor e = new ThreadExecutor();
2417	<
2418	<	f = new CompletableFuture<>();
2419	<	g = new CompletableFuture<>();
2420	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2421	<	f.completeExceptionally(new CFException());
2422	<	checkIncomplete(h);
2423	<	g.complete(1);
2424	<	checkCompletedWithWrappedCFException(h);
2425	<
2426	<	f = new CompletableFuture<>();
2427	<	g = new CompletableFuture<>();
2428	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2429	<	g.completeExceptionally(new CFException());
2430	<	checkIncomplete(h);
2431	<	f.complete(3);
2432	<	checkCompletedWithWrappedCFException(h);
2433	<
2434	<	f = new CompletableFuture<>();
2435	<	g = new CompletableFuture<>();
2436	<	f.complete(3);
2437	<	g.completeExceptionally(new CFException());
2438	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2439	<	checkCompletedWithWrappedCFException(h);
2440	<
2441	<	f = new CompletableFuture<>();
2442	<	g = new CompletableFuture<>();
2443	<	f.completeExceptionally(new CFException());
2444	<	g.complete(3);
2445	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2446	<	checkCompletedWithWrappedCFException(h);
2447	<
2448	<	assertEquals(0, e.count.get());
2449	<	}
2450	<
2451	<	/**
2452	<	* thenAcceptBothAsync result completes exceptionally if action does
2453	<	*/
2454	<	public void testThenAcceptBothAsync3E() {
2455	<	CompletableFuture<Integer> f, g;
2456	<	CompletableFuture<Void> h;
2457	<	FailingBiConsumer r;
2458	<	ThreadExecutor e = new ThreadExecutor();
2459	<
2460	<	f = new CompletableFuture<>();
2461	<	g = new CompletableFuture<>();
2462	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer(), e);
2463	<	f.complete(3);
2464	<	checkIncomplete(h);
2465	<	g.complete(1);
2466	<	checkCompletedWithWrappedCFException(h);
2467	<
2468	<	f = new CompletableFuture<>();
2469	<	g = new CompletableFuture<>();
2470	<	f.complete(3);
2471	<	g.complete(1);
2472	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer(), e);
2473	<	checkCompletedWithWrappedCFException(h);
2474	<
2475	<	assertEquals(2, e.count.get());
2476	<	}
2477	<
2478	<	/**
2479	<	* thenAcceptBothAsync result completes exceptionally if either source cancelled
2480	<	*/
2481	<	public void testThenAcceptBothAsync4E() {
2482	<	CompletableFuture<Integer> f, g;
2483	<	CompletableFuture<Void> h;
2484	<	SubtractAction r;
2485	<	ThreadExecutor e = new ThreadExecutor();
2486	<
2487	<	f = new CompletableFuture<>();
2488	<	g = new CompletableFuture<>();
2489	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2490	<	assertTrue(f.cancel(true));
2491	<	checkIncomplete(h);
2492	<	g.complete(1);
2493	<	checkCompletedWithWrappedCancellationException(h);
2494	<
2495	<	f = new CompletableFuture<>();
2496	<	g = new CompletableFuture<>();
2497	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2498	<	assertTrue(g.cancel(true));
2499	<	checkIncomplete(h);
2500	<	f.complete(3);
2501	<	checkCompletedWithWrappedCancellationException(h);
2502	<
2503	<	f = new CompletableFuture<>();
2504	<	g = new CompletableFuture<>();
2505	<	f.complete(3);
2506	<	assertTrue(g.cancel(true));
2507	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2508	<	checkCompletedWithWrappedCancellationException(h);
2509	<
2510	<	f = new CompletableFuture<>();
2511	<	g = new CompletableFuture<>();
2512	<	assertTrue(f.cancel(true));
2513	<	g.complete(3);
2514	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2515	<	checkCompletedWithWrappedCancellationException(h);
2516	<
2517	<	assertEquals(0, e.count.get());
2518	<	}
3601	>	if (!createIncomplete) assertTrue(f.complete(v1));
3602	>	CompletableFuture<Integer> g = f.copy();
3603	>	if (createIncomplete) {
3604	>	checkIncomplete(f);
3605	>	checkIncomplete(g);
3606	>	assertTrue(f.complete(v1));
3607	>	}
3608	>	checkCompletedNormally(f, v1);
3609	>	checkCompletedNormally(g, v1);
3610	>	}}
3611	>
3612	>	/**
3613	>	* copy returns a CompletableFuture that is completed exceptionally
3614	>	* when source is.
3615	>	*/
3616	>	public void testCopy_exceptionalCompletion() {
3617	>	for (boolean createIncomplete : new boolean[] { true, false })
3618	>	{
3619	>	CFException ex = new CFException();
3620	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3621	>	if (!createIncomplete) f.completeExceptionally(ex);
3622	>	CompletableFuture<Integer> g = f.copy();
3623	>	if (createIncomplete) {
3624	>	checkIncomplete(f);
3625	>	checkIncomplete(g);
3626	>	f.completeExceptionally(ex);
3627	>	}
3628	>	checkCompletedExceptionally(f, ex);
3629	>	checkCompletedWithWrappedException(g, ex);
3630	>	}}
3631
3632		/**
3633	<	* runAfterBothAsync result completes normally after normal
2522	<	* completion of sources
3633	>	* Completion of a copy does not complete its source.
3634		*/
3635	<	public void testRunAfterBothAsyncE() {
3635	>	public void testCopy_oneWayPropagation() {
3636		CompletableFuture<Integer> f = new CompletableFuture<>();
3637	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3638	<	Noop r = new Noop();
3639	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
3640	<	f.complete(one);
3641	<	checkIncomplete(g);
3642	<	f2.complete(two);
2532	<	checkCompletedNormally(g, null);
2533	<	assertTrue(r.ran);
3637	>	assertTrue(f.copy().complete(1));
3638	>	assertTrue(f.copy().complete(null));
3639	>	assertTrue(f.copy().cancel(true));
3640	>	assertTrue(f.copy().cancel(false));
3641	>	assertTrue(f.copy().completeExceptionally(new CFException()));
3642	>	checkIncomplete(f);
3643		}
3644
3645		/**
3646	<	* runAfterBothAsync result completes exceptionally after exceptional
3647	<	* completion of source
3646	>	* minimalCompletionStage returns a CompletableFuture that is
3647	>	* completed normally, with the same value, when source is.
3648		*/
3649	<	public void testRunAfterBothAsync2E() {
3649	>	public void testMinimalCompletionStage() {
3650		CompletableFuture<Integer> f = new CompletableFuture<>();
3651	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3652	<	Noop r = new Noop();
3653	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
3654	<	f.completeExceptionally(new CFException());
3655	<	f2.complete(two);
3656	<	checkCompletedWithWrappedCFException(g);
3657	<
3658	<	r = new Noop();
3659	<	f = new CompletableFuture<>();
2551	<	f2 = new CompletableFuture<>();
2552	<	g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2553	<	f.complete(one);
2554	<	f2.completeExceptionally(new CFException());
2555	<	checkCompletedWithWrappedCFException(g);
3651	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3652	>	AtomicInteger x = new AtomicInteger(0);
3653	>	AtomicReference<Throwable> r = new AtomicReference<>();
3654	>	checkIncomplete(f);
3655	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3656	>	f.complete(1);
3657	>	checkCompletedNormally(f, 1);
3658	>	assertEquals(x.get(), 1);
3659	>	assertNull(r.get());
3660		}
3661
3662		/**
3663	<	* runAfterBothAsync result completes exceptionally if action does
3663	>	* minimalCompletionStage returns a CompletableFuture that is
3664	>	* completed exceptionally when source is.
3665		*/
3666	<	public void testRunAfterBothAsync3E() {
3666	>	public void testMinimalCompletionStage2() {
3667		CompletableFuture<Integer> f = new CompletableFuture<>();
3668	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3669	<	FailingNoop r = new FailingNoop();
3670	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
3671	<	f.complete(one);
3672	<	checkIncomplete(g);
3673	<	f2.complete(two);
3674	<	checkCompletedWithWrappedCFException(g);
3668	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3669	>	AtomicInteger x = new AtomicInteger(0);
3670	>	AtomicReference<Throwable> r = new AtomicReference<>();
3671	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3672	>	checkIncomplete(f);
3673	>	CFException ex = new CFException();
3674	>	f.completeExceptionally(ex);
3675	>	checkCompletedExceptionally(f, ex);
3676	>	assertEquals(x.get(), 0);
3677	>	assertEquals(r.get().getCause(), ex);
3678		}
3679
3680		/**
3681	<	* runAfterBothAsync result completes exceptionally if either source cancelled
3681	>	* failedStage returns a CompletionStage completed
3682	>	* exceptionally with the given Exception
3683		*/
3684	<	public void testRunAfterBothAsync4E() {
3685	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3686	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3687	<	Noop r = new Noop();
3688	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
3689	<	assertTrue(f.cancel(true));
3690	<	f2.complete(two);
3691	<	checkCompletedWithWrappedCancellationException(g);
2583	<
2584	<	r = new Noop();
2585	<	f = new CompletableFuture<>();
2586	<	f2 = new CompletableFuture<>();
2587	<	g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2588	<	f.complete(one);
2589	<	assertTrue(f2.cancel(true));
2590	<	checkCompletedWithWrappedCancellationException(g);
3684	>	public void testFailedStage() {
3685	>	CFException ex = new CFException();
3686	>	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3687	>	AtomicInteger x = new AtomicInteger(0);
3688	>	AtomicReference<Throwable> r = new AtomicReference<>();
3689	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3690	>	assertEquals(x.get(), 0);
3691	>	assertEquals(r.get(), ex);
3692		}
3693
3694		/**
3695	<	* applyToEitherAsync result completes normally after normal
2595	<	* completion of sources
3695	>	* completeAsync completes with value of given supplier
3696		*/
3697	<	public void testApplyToEitherAsyncE() {
3697	>	public void testCompleteAsync() {
3698	>	for (Integer v1 : new Integer[] { 1, null })
3699	>	{
3700		CompletableFuture<Integer> f = new CompletableFuture<>();
3701	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3702	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
3703	<	f.complete(one);
3704	<	checkCompletedNormally(g, two);
2603	<
2604	<	f = new CompletableFuture<>();
2605	<	f.complete(one);
2606	<	f2 = new CompletableFuture<>();
2607	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2608	<	checkCompletedNormally(g, two);
2609	<	}
3701	>	f.completeAsync(() -> v1);
3702	>	f.join();
3703	>	checkCompletedNormally(f, v1);
3704	>	}}
3705
3706		/**
3707	<	* applyToEitherAsync result completes exceptionally after exceptional
2613	<	* completion of source
3707	>	* completeAsync completes exceptionally if given supplier throws
3708		*/
3709	<	public void testApplyToEitherAsync2E() {
3709	>	public void testCompleteAsync2() {
3710		CompletableFuture<Integer> f = new CompletableFuture<>();
3711	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3712	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
3713	<	f.completeExceptionally(new CFException());
3714	<	checkCompletedWithWrappedCFException(g);
3715	<
3716	<	f = new CompletableFuture<>();
3717	<	f2 = new CompletableFuture<>();
2624	<	f2.completeExceptionally(new CFException());
2625	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2626	<	f.complete(one);
2627	<	checkCompletedWithWrappedCFException(g);
3711	>	CFException ex = new CFException();
3712	>	f.completeAsync(() -> { throw ex; });
3713	>	try {
3714	>	f.join();
3715	>	shouldThrow();
3716	>	} catch (CompletionException success) {}
3717	>	checkCompletedWithWrappedException(f, ex);
3718		}
3719
3720		/**
3721	<	* applyToEitherAsync result completes exceptionally if action does
3721	>	* completeAsync with given executor completes with value of given supplier
3722		*/
3723	<	public void testApplyToEitherAsync3E() {
3723	>	public void testCompleteAsync3() {
3724	>	for (Integer v1 : new Integer[] { 1, null })
3725	>	{
3726		CompletableFuture<Integer> f = new CompletableFuture<>();
3727	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3728	<	FailingFunction r = new FailingFunction();
3729	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r, new ThreadExecutor());
3730	<	f.complete(one);
3731	<	checkCompletedWithWrappedCFException(g);
3732	<	}
3727	>	ThreadExecutor executor = new ThreadExecutor();
3728	>	f.completeAsync(() -> v1, executor);
3729	>	assertSame(v1, f.join());
3730	>	checkCompletedNormally(f, v1);
3731	>	assertEquals(1, executor.count.get());
3732	>	}}
3733
3734		/**
3735	<	* applyToEitherAsync result completes exceptionally if either source cancelled
3735	>	* completeAsync with given executor completes exceptionally if
3736	>	* given supplier throws
3737		*/
3738	<	public void testApplyToEitherAsync4E() {
3738	>	public void testCompleteAsync4() {
3739		CompletableFuture<Integer> f = new CompletableFuture<>();
3740	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3741	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
3742	<	assertTrue(f.cancel(true));
3743	<	checkCompletedWithWrappedCancellationException(g);
3744	<
3745	<	f = new CompletableFuture<>();
3746	<	f2 = new CompletableFuture<>();
3747	<	assertTrue(f2.cancel(true));
3748	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2656	<	checkCompletedWithWrappedCancellationException(g);
3740	>	CFException ex = new CFException();
3741	>	ThreadExecutor executor = new ThreadExecutor();
3742	>	f.completeAsync(() -> { throw ex; }, executor);
3743	>	try {
3744	>	f.join();
3745	>	shouldThrow();
3746	>	} catch (CompletionException success) {}
3747	>	checkCompletedWithWrappedException(f, ex);
3748	>	assertEquals(1, executor.count.get());
3749		}
3750
3751		/**
3752	<	* acceptEitherAsync result completes normally after normal
2661	<	* completion of sources
3752	>	* orTimeout completes with TimeoutException if not complete
3753		*/
3754	<	public void testAcceptEitherAsyncE() {
3754	>	public void testOrTimeout_timesOut() {
3755	>	long timeoutMillis = timeoutMillis();
3756		CompletableFuture<Integer> f = new CompletableFuture<>();
3757	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3758	<	IncAction r = new IncAction();
3759	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
3760	<	f.complete(one);
2669	<	checkCompletedNormally(g, null);
2670	<	assertEquals(r.value, 2);
2671	<
2672	<	r = new IncAction();
2673	<	f = new CompletableFuture<>();
2674	<	f.complete(one);
2675	<	f2 = new CompletableFuture<>();
2676	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2677	<	checkCompletedNormally(g, null);
2678	<	assertEquals(r.value, 2);
3757	>	long startTime = System.nanoTime();
3758	>	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3759	>	checkCompletedWithTimeoutException(f);
3760	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3761		}
3762
3763		/**
3764	<	* acceptEitherAsync result completes exceptionally after exceptional
2683	<	* completion of source
3764	>	* orTimeout completes normally if completed before timeout
3765		*/
3766	<	public void testAcceptEitherAsync2E() {
3766	>	public void testOrTimeout_completed() {
3767	>	for (Integer v1 : new Integer[] { 1, null })
3768	>	{
3769		CompletableFuture<Integer> f = new CompletableFuture<>();
3770	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3771	<	IncAction r = new IncAction();
3772	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
3773	<	f.completeExceptionally(new CFException());
3774	<	checkCompletedWithWrappedCFException(g);
3775	<
3776	<	r = new IncAction();
3777	<	f = new CompletableFuture<>();
3778	<	f2 = new CompletableFuture<>();
3779	<	f2.completeExceptionally(new CFException());
2697	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2698	<	f.complete(one);
2699	<	checkCompletedWithWrappedCFException(g);
2700	<	}
3770	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3771	>	long startTime = System.nanoTime();
3772	>	f.complete(v1);
3773	>	assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3774	>	assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3775	>	g.complete(v1);
3776	>	checkCompletedNormally(f, v1);
3777	>	checkCompletedNormally(g, v1);
3778	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3779	>	}}
3780
3781		/**
3782	<	* acceptEitherAsync result completes exceptionally if action does
3782	>	* completeOnTimeout completes with given value if not complete
3783		*/
3784	<	public void testAcceptEitherAsync3E() {
3785	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3786	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2708	<	FailingConsumer r = new FailingConsumer();
2709	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2710	<	f.complete(one);
2711	<	checkCompletedWithWrappedCFException(g);
3784	>	public void testCompleteOnTimeout_timesOut() {
3785	>	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3786	>	() -> testCompleteOnTimeout_timesOut(null));
3787		}
3788
3789		/**
3790	<	* acceptEitherAsync result completes exceptionally if either
2716	<	* source cancelled
3790	>	* completeOnTimeout completes with given value if not complete
3791		*/
3792	<	public void testAcceptEitherAsync4E() {
3792	>	public void testCompleteOnTimeout_timesOut(Integer v) {
3793	>	long timeoutMillis = timeoutMillis();
3794		CompletableFuture<Integer> f = new CompletableFuture<>();
3795	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3796	<	IncAction r = new IncAction();
3797	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
3798	<	assertTrue(f.cancel(true));
3799	<	checkCompletedWithWrappedCancellationException(g);
3800	<
2726	<	r = new IncAction();
2727	<	f = new CompletableFuture<>();
2728	<	f2 = new CompletableFuture<>();
2729	<	assertTrue(f2.cancel(true));
2730	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2731	<	checkCompletedWithWrappedCancellationException(g);
3795	>	long startTime = System.nanoTime();
3796	>	assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS));
3797	>	assertSame(v, f.join());
3798	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3799	>	f.complete(99);         // should have no effect
3800	>	checkCompletedNormally(f, v);
3801		}
3802
3803		/**
3804	<	* runAfterEitherAsync result completes normally after normal
2736	<	* completion of sources
3804	>	* completeOnTimeout has no effect if completed within timeout
3805		*/
3806	<	public void testRunAfterEitherAsyncE() {
3806	>	public void testCompleteOnTimeout_completed() {
3807	>	for (Integer v1 : new Integer[] { 1, null })
3808	>	{
3809		CompletableFuture<Integer> f = new CompletableFuture<>();
3810	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3811	<	Noop r = new Noop();
3812	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
3813	<	f.complete(one);
3814	<	checkCompletedNormally(g, null);
3815	<	assertTrue(r.ran);
3810	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3811	>	long startTime = System.nanoTime();
3812	>	f.complete(v1);
3813	>	assertSame(f, f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3814	>	assertSame(g, g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3815	>	g.complete(v1);
3816	>	checkCompletedNormally(f, v1);
3817	>	checkCompletedNormally(g, v1);
3818	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3819	>	}}
3820	>
3821	>	/**
3822	>	* delayedExecutor returns an executor that delays submission
3823	>	*/
3824	>	public void testDelayedExecutor() {
3825	>	testInParallel(() -> testDelayedExecutor(null, null),
3826	>	() -> testDelayedExecutor(null, 1),
3827	>	() -> testDelayedExecutor(new ThreadExecutor(), 1),
3828	>	() -> testDelayedExecutor(new ThreadExecutor(), 1));
3829	>	}
3830	>
3831	>	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
3832	>	long timeoutMillis = timeoutMillis();
3833	>	// Use an "unreasonably long" long timeout to catch lingering threads
3834	>	long longTimeoutMillis = 1000 * 60 * 60 * 24;
3835	>	final Executor delayer, longDelayer;
3836	>	if (executor == null) {
3837	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
3838	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
3839	>	} else {
3840	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
3841	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
3842	>	}
3843	>	long startTime = System.nanoTime();
3844	>	CompletableFuture<Integer> f =
3845	>	CompletableFuture.supplyAsync(() -> v, delayer);
3846	>	CompletableFuture<Integer> g =
3847	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
3848
3849	<	r = new Noop();
2748	<	f = new CompletableFuture<>();
2749	<	f.complete(one);
2750	<	f2 = new CompletableFuture<>();
2751	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2752	<	checkCompletedNormally(g, null);
2753	<	assertTrue(r.ran);
2754	<	}
3849	>	assertNull(g.getNow(null));
3850
3851	<	/**
3852	<	* runAfterEitherAsync result completes exceptionally after exceptional
3853	<	* completion of source
3854	<	*/
2760	<	public void testRunAfterEitherAsync2E() {
2761	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2762	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2763	<	Noop r = new Noop();
2764	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2765	<	f.completeExceptionally(new CFException());
2766	<	checkCompletedWithWrappedCFException(g);
3851	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
3852	>	long millisElapsed = millisElapsedSince(startTime);
3853	>	assertTrue(millisElapsed >= timeoutMillis);
3854	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
3855
3856	<	r = new Noop();
2769	<	f = new CompletableFuture<>();
2770	<	f2 = new CompletableFuture<>();
2771	<	f2.completeExceptionally(new CFException());
2772	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2773	<	f.complete(one);
2774	<	checkCompletedWithWrappedCFException(g);
2775	<	}
3856	>	checkCompletedNormally(f, v);
3857
3858	<	/**
3859	<	* runAfterEitherAsync result completes exceptionally if action does
2779	<	*/
2780	<	public void testRunAfterEitherAsync3E() {
2781	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2782	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2783	<	FailingNoop r = new FailingNoop();
2784	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2785	<	f.complete(one);
2786	<	checkCompletedWithWrappedCFException(g);
3858	>	checkIncomplete(g);
3859	>	assertTrue(g.cancel(true));
3860		}
3861
3862	<	/**
2790	<	* runAfterEitherAsync result completes exceptionally if either
2791	<	* source cancelled
2792	<	*/
2793	<	public void testRunAfterEitherAsync4E() {
2794	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2795	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2796	<	Noop r = new Noop();
2797	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2798	<	assertTrue(f.cancel(true));
2799	<	checkCompletedWithWrappedCancellationException(g);
3862	>	//--- tests of implementation details; not part of official tck ---
3863
3864	<	r = new Noop();
3865	<	f = new CompletableFuture<>();
3866	<	f2 = new CompletableFuture<>();
3867	<	assertTrue(f2.cancel(true));
3868	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
3869	<	checkCompletedWithWrappedCancellationException(g);
3870	<	}
3864	>	Object resultOf(CompletableFuture<?> f) {
3865	>	SecurityManager sm = System.getSecurityManager();
3866	>	if (sm != null) {
3867	>	try {
3868	>	System.setSecurityManager(null);
3869	>	} catch (SecurityException giveUp) {
3870	>	return "Reflection not available";
3871	>	}
3872	>	}
3873
3874	<	/**
3875	<	* thenComposeAsync result completes normally after normal
3876	<	* completion of source
3877	<	*/
3878	<	public void testThenComposeAsyncE() {
3879	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3880	<	CompletableFutureInc r = new CompletableFutureInc();
3881	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
3882	<	f.complete(one);
3883	<	checkCompletedNormally(g, two);
3874	>	try {
3875	>	java.lang.reflect.Field resultField
3876	>	= CompletableFuture.class.getDeclaredField("result");
3877	>	resultField.setAccessible(true);
3878	>	return resultField.get(f);
3879	>	} catch (Throwable t) {
3880	>	throw new AssertionError(t);
3881	>	} finally {
3882	>	if (sm != null) System.setSecurityManager(sm);
3883	>	}
3884		}
3885
3886	<	/**
3887	<	* thenComposeAsync result completes exceptionally after
3888	<	* exceptional completion of source
3889	<	*/
3890	<	public void testThenComposeAsync2E() {
3891	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3892	<	CompletableFutureInc r = new CompletableFutureInc();
3893	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
3894	<	f.completeExceptionally(new CFException());
3895	<	checkCompletedWithWrappedCFException(g);
3896	<	}
3886	>	public void testExceptionPropagationReusesResultObject() {
3887	>	if (!testImplementationDetails) return;
3888	>	for (ExecutionMode m : ExecutionMode.values())
3889	>	{
3890	>	final CFException ex = new CFException();
3891	>	final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
3892	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3893	>
3894	>	final Runnable noopRunnable = new Noop(m);
3895	>	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
3896	>	final Function<Integer, Integer> incFunction = new IncFunction(m);
3897	>
3898	>	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
3899	>	= new ArrayList<>();
3900	>
3901	>	funs.add(y -> m.thenRun(y, noopRunnable));
3902	>	funs.add(y -> m.thenAccept(y, noopConsumer));
3903	>	funs.add(y -> m.thenApply(y, incFunction));
3904	>
3905	>	funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable));
3906	>	funs.add(y -> m.acceptEither(y, incomplete, noopConsumer));
3907	>	funs.add(y -> m.applyToEither(y, incomplete, incFunction));
3908	>
3909	>	funs.add(y -> m.runAfterBoth(y, v42, noopRunnable));
3910	>	funs.add(y -> m.runAfterBoth(v42, y, noopRunnable));
3911	>	funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3912	>	funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
3913	>	funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m)));
3914	>	funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m)));
3915	>
3916	>	funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
3917	>
3918	>	funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m)));
3919	>
3920	>	funs.add(y -> CompletableFuture.allOf(y));
3921	>	funs.add(y -> CompletableFuture.allOf(y, v42));
3922	>	funs.add(y -> CompletableFuture.allOf(v42, y));
3923	>	funs.add(y -> CompletableFuture.anyOf(y));
3924	>	funs.add(y -> CompletableFuture.anyOf(y, incomplete));
3925	>	funs.add(y -> CompletableFuture.anyOf(incomplete, y));
3926
3927	<	/**
3928	<	* thenComposeAsync result completes exceptionally if action does
3929	<	*/
3930	<	public void testThenComposeAsync3E() {
3931	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3932	<	FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
3933	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
3934	<	f.complete(one);
3935	<	checkCompletedWithWrappedCFException(g);
3936	<	}
3927	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3928	>	fun : funs) {
3929	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3930	>	f.completeExceptionally(ex);
3931	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3932	>	checkCompletedWithWrappedException(src, ex);
3933	>	CompletableFuture<?> dep = fun.apply(src);
3934	>	checkCompletedWithWrappedException(dep, ex);
3935	>	assertSame(resultOf(src), resultOf(dep));
3936	>	}
3937
3938	<	/**
3939	<	* thenComposeAsync result completes exceptionally if source cancelled
3940	<	*/
3941	<	public void testThenComposeAsync4E() {
3942	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3943	<	CompletableFutureInc r = new CompletableFutureInc();
3944	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
3945	<	assertTrue(f.cancel(true));
3946	<	checkCompletedWithWrappedCancellationException(g);
3947	<	}
3938	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3939	>	fun : funs) {
3940	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3941	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3942	>	CompletableFuture<?> dep = fun.apply(src);
3943	>	f.completeExceptionally(ex);
3944	>	checkCompletedWithWrappedException(src, ex);
3945	>	checkCompletedWithWrappedException(dep, ex);
3946	>	assertSame(resultOf(src), resultOf(dep));
3947	>	}
3948
3949	<	// other static methods
3949	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3950	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3951	>	fun : funs) {
3952	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3953	>	f.cancel(mayInterruptIfRunning);
3954	>	checkCancelled(f);
3955	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3956	>	checkCompletedWithWrappedCancellationException(src);
3957	>	CompletableFuture<?> dep = fun.apply(src);
3958	>	checkCompletedWithWrappedCancellationException(dep);
3959	>	assertSame(resultOf(src), resultOf(dep));
3960	>	}
3961
3962	<	/**
3963	<	* allOf(no component futures) returns a future completed normally
3964	<	* with the value null
3965	<	*/
3966	<	public void testAllOf_empty() throws Exception {
3967	<	CompletableFuture<Void> f = CompletableFuture.allOf();
3968	<	checkCompletedNormally(f, null);
3969	<	}
3962	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3963	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3964	>	fun : funs) {
3965	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3966	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3967	>	CompletableFuture<?> dep = fun.apply(src);
3968	>	f.cancel(mayInterruptIfRunning);
3969	>	checkCancelled(f);
3970	>	checkCompletedWithWrappedCancellationException(src);
3971	>	checkCompletedWithWrappedCancellationException(dep);
3972	>	assertSame(resultOf(src), resultOf(dep));
3973	>	}
3974	>	}}
3975
3976		/**
3977	<	* allOf returns a future completed normally with the value null
2868	<	* when all components complete normally
3977	>	* Minimal completion stages throw UOE for most non-CompletionStage methods
3978		*/
3979	<	public void testAllOf_normal() throws Exception {
3980	<	for (int k = 1; k < 20; ++k) {
3981	<	CompletableFuture<Integer>[] fs = (CompletableFuture<Integer>[]) new CompletableFuture[k];
3982	<	for (int i = 0; i < k; ++i)
3983	<	fs[i] = new CompletableFuture<>();
3984	<	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3985	<	for (int i = 0; i < k; ++i) {
3986	<	checkIncomplete(f);
3987	<	checkIncomplete(CompletableFuture.allOf(fs));
3988	<	fs[i].complete(one);
3979	>	public void testMinimalCompletionStage_minimality() {
3980	>	if (!testImplementationDetails) return;
3981	>	Function<Method, String> toSignature =
3982	>	method -> method.getName() + Arrays.toString(method.getParameterTypes());
3983	>	Predicate<Method> isNotStatic =
3984	>	method -> (method.getModifiers() & Modifier.STATIC) == 0;
3985	>	List<Method> minimalMethods =
3986	>	Stream.of(Object.class, CompletionStage.class)
3987	>	.flatMap(klazz -> Stream.of(klazz.getMethods()))
3988	>	.filter(isNotStatic)
3989	>	.collect(Collectors.toList());
3990	>	// Methods from CompletableFuture permitted NOT to throw UOE
3991	>	String[] signatureWhitelist = {
3992	>	"newIncompleteFuture[]",
3993	>	"defaultExecutor[]",
3994	>	"minimalCompletionStage[]",
3995	>	"copy[]",
3996	>	};
3997	>	Set<String> permittedMethodSignatures =
3998	>	Stream.concat(minimalMethods.stream().map(toSignature),
3999	>	Stream.of(signatureWhitelist))
4000	>	.collect(Collectors.toSet());
4001	>	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
4002	>	.filter(isNotStatic)
4003	>	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
4004	>	.collect(Collectors.toList());
4005	>
4006	>	List<CompletionStage<Integer>> stages = new ArrayList<>();
4007	>	CompletionStage<Integer> min =
4008	>	new CompletableFuture<Integer>().minimalCompletionStage();
4009	>	stages.add(min);
4010	>	stages.add(min.thenApply(x -> x));
4011	>	stages.add(CompletableFuture.completedStage(1));
4012	>	stages.add(CompletableFuture.failedStage(new CFException()));
4013	>
4014	>	List<Method> bugs = new ArrayList<>();
4015	>	for (Method method : allMethods) {
4016	>	Class<?>[] parameterTypes = method.getParameterTypes();
4017	>	Object[] args = new Object[parameterTypes.length];
4018	>	// Manufacture boxed primitives for primitive params
4019	>	for (int i = 0; i < args.length; i++) {
4020	>	Class<?> type = parameterTypes[i];
4021	>	if (parameterTypes[i] == boolean.class)
4022	>	args[i] = false;
4023	>	else if (parameterTypes[i] == int.class)
4024	>	args[i] = 0;
4025	>	else if (parameterTypes[i] == long.class)
4026	>	args[i] = 0L;
4027	>	}
4028	>	for (CompletionStage<Integer> stage : stages) {
4029	>	try {
4030	>	method.invoke(stage, args);
4031	>	bugs.add(method);
4032	>	}
4033	>	catch (java.lang.reflect.InvocationTargetException expected) {
4034	>	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4035	>	bugs.add(method);
4036	>	// expected.getCause().printStackTrace();
4037	>	}
4038	>	}
4039	>	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4040		}
2881	–	checkCompletedNormally(f, null);
2882	–	checkCompletedNormally(CompletableFuture.allOf(fs), null);
4041		}
4042	+	if (!bugs.isEmpty())
4043	+	throw new Error("Methods did not throw UOE: " + bugs);
4044		}
4045
4046		/**
4047	<	* anyOf(no component futures) returns an incomplete future
4048	<	*/
2889	<	public void testAnyOf_empty() throws Exception {
2890	<	CompletableFuture<Object> f = CompletableFuture.anyOf();
2891	<	checkIncomplete(f);
2892	<	}
2893	<
2894	<	/**
2895	<	* anyOf returns a future completed normally with a value when
2896	<	* a component future does
4047	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4048	>	* is completed normally, with the same value, when source is.
4049		*/
4050	<	public void testAnyOf_normal() throws Exception {
4051	<	for (int k = 0; k < 10; ++k) {
4052	<	CompletableFuture[] fs = new CompletableFuture[k];
4053	<	for (int i = 0; i < k; ++i)
4054	<	fs[i] = new CompletableFuture<>();
4055	<	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
4050	>	public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() {
4051	>	for (boolean createIncomplete : new boolean[] { true, false })
4052	>	for (Integer v1 : new Integer[] { 1, null })
4053	>	{
4054	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4055	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4056	>	if (!createIncomplete) assertTrue(f.complete(v1));
4057	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4058	>	if (createIncomplete) {
4059		checkIncomplete(f);
4060	<	for (int i = 0; i < k; ++i) {
4061	<	fs[i].complete(one);
2907	<	checkCompletedNormally(f, one);
2908	<	checkCompletedNormally(CompletableFuture.anyOf(fs), one);
2909	<	}
4060	>	checkIncomplete(g);
4061	>	assertTrue(f.complete(v1));
4062		}
4063	<	}
4064	<
4065	<	/**
4066	<	* anyOf result completes exceptionally when any component does.
4067	<	*/
4068	<	public void testAnyOf_exceptional() throws Exception {
4069	<	for (int k = 0; k < 10; ++k) {
4070	<	CompletableFuture[] fs = new CompletableFuture[k];
4071	<	for (int i = 0; i < k; ++i)
4072	<	fs[i] = new CompletableFuture<>();
4073	<	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
4063	>	checkCompletedNormally(f, v1);
4064	>	checkCompletedNormally(g, v1);
4065	>	}}
4066	>
4067	>	/**
4068	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4069	>	* is completed exceptionally when source is.
4070	>	*/
4071	>	public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() {
4072	>	for (boolean createIncomplete : new boolean[] { true, false })
4073	>	{
4074	>	CFException ex = new CFException();
4075	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4076	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4077	>	if (!createIncomplete) f.completeExceptionally(ex);
4078	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4079	>	if (createIncomplete) {
4080		checkIncomplete(f);
4081	<	for (int i = 0; i < k; ++i) {
4082	<	fs[i].completeExceptionally(new CFException());
2925	<	checkCompletedWithWrappedCFException(f);
2926	<	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
2927	<	}
4081	>	checkIncomplete(g);
4082	>	f.completeExceptionally(ex);
4083		}
4084	<	}
4084	>	checkCompletedExceptionally(f, ex);
4085	>	checkCompletedWithWrappedException(g, ex);
4086	>	}}
4087
4088		/**
4089	<	* Completion methods throw NullPointerException with null arguments
4089	>	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4090		*/
4091	<	public void testNPE() {
4091	>	public void testMinimalCompletionStage_toCompletableFuture_mutable() {
4092	>	for (Integer v1 : new Integer[] { 1, null })
4093	>	{
4094		CompletableFuture<Integer> f = new CompletableFuture<>();
4095	<	CompletableFuture<Integer> g = new CompletableFuture<>();
4096	<	CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
4097	<	CompletableFuture<?> h;
4098	<	ThreadExecutor exec = new ThreadExecutor();
4099	<
4100	<	Runnable[] throwingActions = {
4101	<	() -> { CompletableFuture.supplyAsync(null); },
2943	<	() -> { CompletableFuture.supplyAsync(null, exec); },
2944	<	() -> { CompletableFuture.supplyAsync(supplyOne, null); },
2945	<
2946	<	() -> { CompletableFuture.runAsync(null); },
2947	<	() -> { CompletableFuture.runAsync(null, exec); },
2948	<	() -> { CompletableFuture.runAsync(() -> {}, null); },
2949	<
2950	<	() -> { f.completeExceptionally(null); },
2951	<
2952	<	() -> { f.thenApply(null); },
2953	<	() -> { f.thenApplyAsync(null); },
2954	<	() -> { f.thenApplyAsync((x) -> x, null); },
2955	<	() -> { f.thenApplyAsync(null, exec); },
2956	<
2957	<	() -> { f.thenAccept(null); },
2958	<	() -> { f.thenAcceptAsync(null); },
2959	<	() -> { f.thenAcceptAsync((x) -> { ; }, null); },
2960	<	() -> { f.thenAcceptAsync(null, exec); },
2961	<
2962	<	() -> { f.thenRun(null); },
2963	<	() -> { f.thenRunAsync(null); },
2964	<	() -> { f.thenRunAsync(() -> { ; }, null); },
2965	<	() -> { f.thenRunAsync(null, exec); },
2966	<
2967	<	() -> { f.thenCombine(g, null); },
2968	<	() -> { f.thenCombineAsync(g, null); },
2969	<	() -> { f.thenCombineAsync(g, null, exec); },
2970	<	() -> { f.thenCombine(nullFuture, (x, y) -> x); },
2971	<	() -> { f.thenCombineAsync(nullFuture, (x, y) -> x); },
2972	<	() -> { f.thenCombineAsync(nullFuture, (x, y) -> x, exec); },
2973	<	() -> { f.thenCombineAsync(g, (x, y) -> x, null); },
2974	<
2975	<	() -> { f.thenAcceptBoth(g, null); },
2976	<	() -> { f.thenAcceptBothAsync(g, null); },
2977	<	() -> { f.thenAcceptBothAsync(g, null, exec); },
2978	<	() -> { f.thenAcceptBoth(nullFuture, (x, y) -> {}); },
2979	<	() -> { f.thenAcceptBothAsync(nullFuture, (x, y) -> {}); },
2980	<	() -> { f.thenAcceptBothAsync(nullFuture, (x, y) -> {}, exec); },
2981	<	() -> { f.thenAcceptBothAsync(g, (x, y) -> {}, null); },
2982	<
2983	<	() -> { f.runAfterBoth(g, null); },
2984	<	() -> { f.runAfterBothAsync(g, null); },
2985	<	() -> { f.runAfterBothAsync(g, null, exec); },
2986	<	() -> { f.runAfterBoth(nullFuture, () -> {}); },
2987	<	() -> { f.runAfterBothAsync(nullFuture, () -> {}); },
2988	<	() -> { f.runAfterBothAsync(nullFuture, () -> {}, exec); },
2989	<	() -> { f.runAfterBothAsync(g, () -> {}, null); },
2990	<
2991	<	() -> { f.applyToEither(g, null); },
2992	<	() -> { f.applyToEitherAsync(g, null); },
2993	<	() -> { f.applyToEitherAsync(g, null, exec); },
2994	<	() -> { f.applyToEither(nullFuture, (x) -> x); },
2995	<	() -> { f.applyToEitherAsync(nullFuture, (x) -> x); },
2996	<	() -> { f.applyToEitherAsync(nullFuture, (x) -> x, exec); },
2997	<	() -> { f.applyToEitherAsync(g, (x) -> x, null); },
2998	<
2999	<	() -> { f.acceptEither(g, null); },
3000	<	() -> { f.acceptEitherAsync(g, null); },
3001	<	() -> { f.acceptEitherAsync(g, null, exec); },
3002	<	() -> { f.acceptEither(nullFuture, (x) -> {}); },
3003	<	() -> { f.acceptEitherAsync(nullFuture, (x) -> {}); },
3004	<	() -> { f.acceptEitherAsync(nullFuture, (x) -> {}, exec); },
3005	<	() -> { f.acceptEitherAsync(g, (x) -> {}, null); },
3006	<
3007	<	() -> { f.runAfterEither(g, null); },
3008	<	() -> { f.runAfterEitherAsync(g, null); },
3009	<	() -> { f.runAfterEitherAsync(g, null, exec); },
3010	<	() -> { f.runAfterEither(nullFuture, () -> {}); },
3011	<	() -> { f.runAfterEitherAsync(nullFuture, () -> {}); },
3012	<	() -> { f.runAfterEitherAsync(nullFuture, () -> {}, exec); },
3013	<	() -> { f.runAfterEitherAsync(g, () -> {}, null); },
3014	<
3015	<	() -> { f.thenCompose(null); },
3016	<	() -> { f.thenComposeAsync(null); },
3017	<	() -> { f.thenComposeAsync(new CompletableFutureInc(), null); },
3018	<	() -> { f.thenComposeAsync(null, exec); },
3019	<
3020	<	() -> { f.exceptionally(null); },
3021	<
3022	<	() -> { f.handle(null); },
3023	<
3024	<	() -> { CompletableFuture.allOf((CompletableFuture<?>)null); },
3025	<	() -> { CompletableFuture.allOf((CompletableFuture<?>[])null); },
3026	<	() -> { CompletableFuture.allOf(f, null); },
3027	<	() -> { CompletableFuture.allOf(null, f); },
3028	<
3029	<	() -> { CompletableFuture.anyOf((CompletableFuture<?>)null); },
3030	<	() -> { CompletableFuture.anyOf((CompletableFuture<?>[])null); },
3031	<	() -> { CompletableFuture.anyOf(f, null); },
3032	<	() -> { CompletableFuture.anyOf(null, f); },
3033	<	};
3034	<
3035	<	assertThrows(NullPointerException.class, throwingActions);
3036	<	assertEquals(0, exec.count.get());
3037	<	}
4095	>	CompletionStage minimal = f.minimalCompletionStage();
4096	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4097	>	assertTrue(g.complete(v1));
4098	>	checkCompletedNormally(g, v1);
4099	>	checkIncomplete(f);
4100	>	checkIncomplete(minimal.toCompletableFuture());
4101	>	}}
4102
4103		/**
4104	<	* toCompletableFuture returns this CompletableFuture.
4104	>	* minimalStage.toCompletableFuture().join() awaits completion
4105		*/
4106	<	public void testToCompletableFuture() {
4107	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4108	<	assertSame(f, f.toCompletableFuture());
4106	>	public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception {
4107	>	for (boolean createIncomplete : new boolean[] { true, false })
4108	>	for (Integer v1 : new Integer[] { 1, null })
4109	>	{
4110	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4111	>	if (!createIncomplete) assertTrue(f.complete(v1));
4112	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4113	>	if (createIncomplete) assertTrue(f.complete(v1));
4114	>	assertEquals(v1, minimal.toCompletableFuture().join());
4115	>	assertEquals(v1, minimal.toCompletableFuture().get());
4116	>	checkCompletedNormally(minimal.toCompletableFuture(), v1);
4117	>	}}
4118	>
4119	>	/**
4120	>	* Completion of a toCompletableFuture copy of a minimal stage
4121	>	* does not complete its source.
4122	>	*/
4123	>	public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() {
4124	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4125	>	CompletionStage<Integer> g = f.minimalCompletionStage();
4126	>	assertTrue(g.toCompletableFuture().complete(1));
4127	>	assertTrue(g.toCompletableFuture().complete(null));
4128	>	assertTrue(g.toCompletableFuture().cancel(true));
4129	>	assertTrue(g.toCompletableFuture().cancel(false));
4130	>	assertTrue(g.toCompletableFuture().completeExceptionally(new CFException()));
4131	>	checkIncomplete(g.toCompletableFuture());
4132	>	f.complete(1);
4133	>	checkCompletedNormally(g.toCompletableFuture(), 1);
4134		}
4135
4136	<	/**
4137	<	* whenComplete action executes on normal completion, propagating
4138	<	* source result.
4139	<	*/
4140	<	public void testWhenComplete1() {
4141	<	final AtomicInteger a = new AtomicInteger();
4142	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4143	<	CompletableFuture<Integer> g =
4144	<	f.whenComplete((Integer x, Throwable t) -> a.getAndIncrement());
3056	<	f.complete(three);
3057	<	checkCompletedNormally(f, three);
3058	<	checkCompletedNormally(g, three);
3059	<	assertEquals(a.get(), 1);
4136	>	/** Demo utility method for external reliable toCompletableFuture */
4137	>	static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) {
4138	>	CompletableFuture<T> f = new CompletableFuture<>();
4139	>	stage.handle((T t, Throwable ex) -> {
4140	>	if (ex != null) f.completeExceptionally(ex);
4141	>	else f.complete(t);
4142	>	return null;
4143	>	});
4144	>	return f;
4145		}
4146
4147	<	/**
4148	<	* whenComplete action executes on exceptional completion, propagating
4149	<	* source result.
3065	<	*/
3066	<	public void testWhenComplete2() {
3067	<	final AtomicInteger a = new AtomicInteger();
3068	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3069	<	CompletableFuture<Integer> g =
3070	<	f.whenComplete((Integer x, Throwable t) -> a.getAndIncrement());
3071	<	f.completeExceptionally(new CFException());
3072	<	assertTrue(f.isCompletedExceptionally());
3073	<	assertTrue(g.isCompletedExceptionally());
3074	<	assertEquals(a.get(), 1);
4147	>	/** Demo utility method to join a CompletionStage */
4148	>	static <T> T join(CompletionStage<T> stage) {
4149	>	return toCompletableFuture(stage).join();
4150		}
4151
4152		/**
4153	<	* If a whenComplete action throws an exception when triggered by
3079	<	* a normal completion, it completes exceptionally
4153	>	* Joining a minimal stage "by hand" works
4154		*/
4155	<	public void testWhenComplete3() {
4155	>	public void testMinimalCompletionStage_join_by_hand() {
4156	>	for (boolean createIncomplete : new boolean[] { true, false })
4157	>	for (Integer v1 : new Integer[] { 1, null })
4158	>	{
4159		CompletableFuture<Integer> f = new CompletableFuture<>();
4160	<	CompletableFuture<Integer> g =
4161	<	f.whenComplete((Integer x, Throwable t) ->
4162	<	{ throw new CFException(); } );
4163	<	f.complete(three);
4164	<	checkCompletedNormally(f, three);
4165	<	assertTrue(g.isCompletedExceptionally());
4166	<	checkCompletedWithWrappedCFException(g);
4167	<	}
4160	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4161	>	CompletableFuture<Integer> g = new CompletableFuture<>();
4162	>	if (!createIncomplete) assertTrue(f.complete(v1));
4163	>	minimal.thenAccept(x -> g.complete(x));
4164	>	if (createIncomplete) assertTrue(f.complete(v1));
4165	>	g.join();
4166	>	checkCompletedNormally(g, v1);
4167	>	checkCompletedNormally(f, v1);
4168	>	assertEquals(v1, join(minimal));
4169	>	}}
4170	>
4171	>	static class Monad {
4172	>	static class ZeroException extends RuntimeException {
4173	>	public ZeroException() { super("monadic zero"); }
4174	>	}
4175	>	// "return", "unit"
4176	>	static <T> CompletableFuture<T> unit(T value) {
4177	>	return completedFuture(value);
4178	>	}
4179	>	// monadic zero ?
4180	>	static <T> CompletableFuture<T> zero() {
4181	>	return failedFuture(new ZeroException());
4182	>	}
4183	>	// >=>
4184	>	static <T,U,V> Function<T, CompletableFuture<V>> compose
4185	>	(Function<T, CompletableFuture<U>> f,
4186	>	Function<U, CompletableFuture<V>> g) {
4187	>	return x -> f.apply(x).thenCompose(g);
4188	>	}
4189
4190	<	/**
4191	<	* whenCompleteAsync action executes on normal completion, propagating
4192	<	* source result.
4193	<	*/
4194	<	public void testWhenCompleteAsync1() {
4195	<	final AtomicInteger a = new AtomicInteger();
4196	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4197	<	CompletableFuture<Integer> g =
3100	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement());
3101	<	f.complete(three);
3102	<	checkCompletedNormally(f, three);
3103	<	checkCompletedNormally(g, three);
3104	<	assertEquals(a.get(), 1);
3105	<	}
4190	>	static void assertZero(CompletableFuture<?> f) {
4191	>	try {
4192	>	f.getNow(null);
4193	>	throw new AssertionFailedError("should throw");
4194	>	} catch (CompletionException success) {
4195	>	assertTrue(success.getCause() instanceof ZeroException);
4196	>	}
4197	>	}
4198
4199	<	/**
4200	<	* whenCompleteAsync action executes on exceptional completion, propagating
4201	<	* source result.
4202	<	*/
4203	<	public void testWhenCompleteAsync2() {
4204	<	final AtomicInteger a = new AtomicInteger();
4205	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4206	<	CompletableFuture<Integer> g =
4207	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement());
4208	<	f.completeExceptionally(new CFException());
4209	<	checkCompletedWithWrappedCFException(f);
4210	<	checkCompletedWithWrappedCFException(g);
4211	<	}
4199	>	static <T> void assertFutureEquals(CompletableFuture<T> f,
4200	>	CompletableFuture<T> g) {
4201	>	T fval = null, gval = null;
4202	>	Throwable fex = null, gex = null;
4203	>
4204	>	try { fval = f.get(); }
4205	>	catch (ExecutionException ex) { fex = ex.getCause(); }
4206	>	catch (Throwable ex) { fex = ex; }
4207	>
4208	>	try { gval = g.get(); }
4209	>	catch (ExecutionException ex) { gex = ex.getCause(); }
4210	>	catch (Throwable ex) { gex = ex; }
4211	>
4212	>	if (fex != null || gex != null)
4213	>	assertSame(fex.getClass(), gex.getClass());
4214	>	else
4215	>	assertEquals(fval, gval);
4216	>	}
4217
4218	<	/**
4219	<	* If a whenCompleteAsync action throws an exception when
4220	<	* triggered by a normal completion, it completes exceptionally
3124	<	*/
3125	<	public void testWhenCompleteAsync3() {
3126	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3127	<	CompletableFuture<Integer> g =
3128	<	f.whenCompleteAsync((Integer x, Throwable t) ->
3129	<	{ throw new CFException(); } );
3130	<	f.complete(three);
3131	<	checkCompletedNormally(f, three);
3132	<	checkCompletedWithWrappedCFException(g);
3133	<	}
4218	>	static class PlusFuture<T> extends CompletableFuture<T> {
4219	>	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4220	>	}
4221
4222	<	/**
4223	<	* whenCompleteAsync action executes on normal completion, propagating
4224	<	* source result.
4225	<	*/
4226	<	public void testWhenCompleteAsync1e() {
4227	<	final AtomicInteger a = new AtomicInteger();
4228	<	ThreadExecutor exec = new ThreadExecutor();
4229	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4230	<	CompletableFuture<Integer> g =
4231	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement(),
4232	<	exec);
4233	<	f.complete(three);
4234	<	checkCompletedNormally(f, three);
4235	<	checkCompletedNormally(g, three);
4236	<	assertEquals(a.get(), 1);
4222	>	/** Implements "monadic plus". */
4223	>	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
4224	>	CompletableFuture<? extends T> g) {
4225	>	PlusFuture<T> plus = new PlusFuture<T>();
4226	>	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
4227	>	try {
4228	>	if (ex == null) {
4229	>	if (plus.complete(result))
4230	>	if (plus.firstFailure.get() != null)
4231	>	plus.firstFailure.set(null);
4232	>	}
4233	>	else if (plus.firstFailure.compareAndSet(null, ex)) {
4234	>	if (plus.isDone())
4235	>	plus.firstFailure.set(null);
4236	>	}
4237	>	else {
4238	>	// first failure has precedence
4239	>	Throwable first = plus.firstFailure.getAndSet(null);
4240	>
4241	>	// may fail with "Self-suppression not permitted"
4242	>	try { first.addSuppressed(ex); }
4243	>	catch (Exception ignored) {}
4244	>
4245	>	plus.completeExceptionally(first);
4246	>	}
4247	>	} catch (Throwable unexpected) {
4248	>	plus.completeExceptionally(unexpected);
4249	>	}
4250	>	};
4251	>	f.whenComplete(action);
4252	>	g.whenComplete(action);
4253	>	return plus;
4254	>	}
4255		}
4256
4257		/**
4258	<	* whenCompleteAsync action executes on exceptional completion, propagating
4259	<	* source result.
4258	>	* CompletableFuture is an additive monad - sort of.
4259	>	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
4260		*/
4261	<	public void testWhenCompleteAsync2e() {
4262	<	final AtomicInteger a = new AtomicInteger();
4263	<	ThreadExecutor exec = new ThreadExecutor();
4264	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4265	<	CompletableFuture<Integer> g =
4266	<	f.whenCompleteAsync((Integer x, Throwable t) -> a.getAndIncrement(),
4267	<	exec);
4268	<	f.completeExceptionally(new CFException());
4269	<	checkCompletedWithWrappedCFException(f);
4270	<	checkCompletedWithWrappedCFException(g);
4271	<	}
4261	>	public void testAdditiveMonad() throws Throwable {
4262	>	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
4263	>	CompletableFuture<Long> zero = Monad.zero();
4264	>
4265	>	// Some mutually non-commutative functions
4266	>	Function<Long, CompletableFuture<Long>> triple
4267	>	= x -> Monad.unit(3 * x);
4268	>	Function<Long, CompletableFuture<Long>> inc
4269	>	= x -> Monad.unit(x + 1);
4270	>
4271	>	// unit is a right identity: m >>= unit === m
4272	>	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
4273	>	inc.apply(5L));
4274	>	// unit is a left identity: (unit x) >>= f === f x
4275	>	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
4276	>	inc.apply(5L));
4277	>
4278	>	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4279	>	Monad.assertFutureEquals(
4280	>	unit.apply(5L).thenCompose(inc).thenCompose(triple),
4281	>	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4282	>
4283	>	// The case for CompletableFuture as an additive monad is weaker...
4284	>
4285	>	// zero is a monadic zero
4286	>	Monad.assertZero(zero);
4287	>
4288	>	// left zero: zero >>= f === zero
4289	>	Monad.assertZero(zero.thenCompose(inc));
4290	>	// right zero: f >>= (\x -> zero) === zero
4291	>	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4292	>
4293	>	// f plus zero === f
4294	>	Monad.assertFutureEquals(Monad.unit(5L),
4295	>	Monad.plus(Monad.unit(5L), zero));
4296	>	// zero plus f === f
4297	>	Monad.assertFutureEquals(Monad.unit(5L),
4298	>	Monad.plus(zero, Monad.unit(5L)));
4299	>	// zero plus zero === zero
4300	>	Monad.assertZero(Monad.plus(zero, zero));
4301	>	{
4302	>	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
4303	>	Monad.unit(8L));
4304	>	// non-determinism
4305	>	assertTrue(f.get() == 5L || f.get() == 8L);
4306	>	}
4307
4308	<	/**
4309	<	* If a whenCompleteAsync action throws an exception when triggered
4310	<	* by a normal completion, it completes exceptionally
4311	<	*/
4312	<	public void testWhenCompleteAsync3e() {
4313	<	ThreadExecutor exec = new ThreadExecutor();
4314	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4315	<	CompletableFuture<Integer> g =
4316	<	f.whenCompleteAsync((Integer x, Throwable t) ->
4317	<	{ throw new CFException(); },
4318	<	exec);
4319	<	f.complete(three);
4320	<	checkCompletedNormally(f, three);
4321	<	checkCompletedWithWrappedCFException(g);
4308	>	CompletableFuture<Long> godot = new CompletableFuture<>();
4309	>	// f plus godot === f (doesn't wait for godot)
4310	>	Monad.assertFutureEquals(Monad.unit(5L),
4311	>	Monad.plus(Monad.unit(5L), godot));
4312	>	// godot plus f === f (doesn't wait for godot)
4313	>	Monad.assertFutureEquals(Monad.unit(5L),
4314	>	Monad.plus(godot, Monad.unit(5L)));
4315	>	}
4316	>
4317	>	/** Test long recursive chains of CompletableFutures with cascading completions */
4318	>	@SuppressWarnings("FutureReturnValueIgnored")
4319	>	public void testRecursiveChains() throws Throwable {
4320	>	for (ExecutionMode m : ExecutionMode.values())
4321	>	for (boolean addDeadEnds : new boolean[] { true, false })
4322	>	{
4323	>	final int val = 42;
4324	>	final int n = expensiveTests ? 1_000 : 2;
4325	>	CompletableFuture<Integer> head = new CompletableFuture<>();
4326	>	CompletableFuture<Integer> tail = head;
4327	>	for (int i = 0; i < n; i++) {
4328	>	if (addDeadEnds) m.thenApply(tail, v -> v + 1);
4329	>	tail = m.thenApply(tail, v -> v + 1);
4330	>	if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1);
4331	>	tail = m.applyToEither(tail, tail, v -> v + 1);
4332	>	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1);
4333	>	tail = m.thenCombine(tail, tail, (v, w) -> v + 1);
4334	>	}
4335	>	head.complete(val);
4336	>	assertEquals(val + 3 * n, (int) tail.join());
4337	>	}}
4338	>
4339	>	/**
4340	>	* A single CompletableFuture with many dependents.
4341	>	* A demo of scalability - runtime is O(n).
4342	>	*/
4343	>	@SuppressWarnings("FutureReturnValueIgnored")
4344	>	public void testManyDependents() throws Throwable {
4345	>	final int n = expensiveTests ? 1_000_000 : 10;
4346	>	final CompletableFuture<Void> head = new CompletableFuture<>();
4347	>	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4348	>	final AtomicInteger count = new AtomicInteger(0);
4349	>	for (int i = 0; i < n; i++) {
4350	>	head.thenRun(() -> count.getAndIncrement());
4351	>	head.thenAccept(x -> count.getAndIncrement());
4352	>	head.thenApply(x -> count.getAndIncrement());
4353	>
4354	>	head.runAfterBoth(complete, () -> count.getAndIncrement());
4355	>	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
4356	>	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
4357	>	complete.runAfterBoth(head, () -> count.getAndIncrement());
4358	>	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
4359	>	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4360	>
4361	>	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4362	>	head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4363	>	head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4364	>	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4365	>	new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement());
4366	>	new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement());
4367	>	}
4368	>	head.complete(null);
4369	>	assertEquals(5 * 3 * n, count.get());
4370		}
4371
4372	+	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4373	+	@SuppressWarnings("FutureReturnValueIgnored")
4374	+	public void testCoCompletionGarbageRetention() throws Throwable {
4375	+	final int n = expensiveTests ? 1_000_000 : 10;
4376	+	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4377	+	CompletableFuture<Integer> f;
4378	+	for (int i = 0; i < n; i++) {
4379	+	f = new CompletableFuture<>();
4380	+	f.runAfterEither(incomplete, () -> {});
4381	+	f.complete(null);
4382	+
4383	+	f = new CompletableFuture<>();
4384	+	f.acceptEither(incomplete, x -> {});
4385	+	f.complete(null);
4386	+
4387	+	f = new CompletableFuture<>();
4388	+	f.applyToEither(incomplete, x -> x);
4389	+	f.complete(null);
4390	+
4391	+	f = new CompletableFuture<>();
4392	+	CompletableFuture.anyOf(new CompletableFuture<?>[] { f, incomplete });
4393	+	f.complete(null);
4394	+	}
4395
4396	<	/**
4397	<	* handleAsync action completes normally with function value on
4398	<	* either normal or exceptional completion of source
4399	<	*/
4400	<	public void testHandleAsync() {
4401	<	CompletableFuture<Integer> f, g;
4402	<	IntegerHandler r;
4403	<
4404	<	f = new CompletableFuture<>();
4405	<	g = f.handleAsync(r = new IntegerHandler());
4406	<	assertFalse(r.ran);
4407	<	f.completeExceptionally(new CFException());
4408	<	checkCompletedWithWrappedCFException(f);
4409	<	checkCompletedNormally(g, three);
4410	<	assertTrue(r.ran);
4411	<
4412	<	f = new CompletableFuture<>();
3202	<	g = f.handleAsync(r = new IntegerHandler());
3203	<	assertFalse(r.ran);
3204	<	f.completeExceptionally(new CFException());
3205	<	checkCompletedWithWrappedCFException(f);
3206	<	checkCompletedNormally(g, three);
3207	<	assertTrue(r.ran);
3208	<
3209	<	f = new CompletableFuture<>();
3210	<	g = f.handleAsync(r = new IntegerHandler());
3211	<	assertFalse(r.ran);
3212	<	f.complete(one);
3213	<	checkCompletedNormally(f, one);
3214	<	checkCompletedNormally(g, two);
3215	<	assertTrue(r.ran);
3216	<
3217	<	f = new CompletableFuture<>();
3218	<	g = f.handleAsync(r = new IntegerHandler());
3219	<	assertFalse(r.ran);
3220	<	f.complete(one);
3221	<	checkCompletedNormally(f, one);
3222	<	checkCompletedNormally(g, two);
3223	<	assertTrue(r.ran);
4396	>	for (int i = 0; i < n; i++) {
4397	>	f = new CompletableFuture<>();
4398	>	incomplete.runAfterEither(f, () -> {});
4399	>	f.complete(null);
4400	>
4401	>	f = new CompletableFuture<>();
4402	>	incomplete.acceptEither(f, x -> {});
4403	>	f.complete(null);
4404	>
4405	>	f = new CompletableFuture<>();
4406	>	incomplete.applyToEither(f, x -> x);
4407	>	f.complete(null);
4408	>
4409	>	f = new CompletableFuture<>();
4410	>	CompletableFuture.anyOf(new CompletableFuture<?>[] { incomplete, f });
4411	>	f.complete(null);
4412	>	}
4413		}
4414
4415		/**
4416	<	* handleAsync action with Executor completes normally with
4417	<	* function value on either normal or exceptional completion of
4418	<	* source
4419	<	*/
4420	<	public void testHandleAsync2() {
4421	<	CompletableFuture<Integer> f, g;
4422	<	ThreadExecutor exec = new ThreadExecutor();
4423	<	IntegerHandler r;
4424	<
4425	<	f = new CompletableFuture<>();
4426	<	g = f.handleAsync(r = new IntegerHandler(), exec);
4427	<	assertFalse(r.ran);
4428	<	f.completeExceptionally(new CFException());
4429	<	checkCompletedWithWrappedCFException(f);
4430	<	checkCompletedNormally(g, three);
4431	<	assertTrue(r.ran);
4432	<
4433	<	f = new CompletableFuture<>();
4434	<	g = f.handleAsync(r = new IntegerHandler(), exec);
4435	<	assertFalse(r.ran);
4436	<	f.completeExceptionally(new CFException());
4437	<	checkCompletedWithWrappedCFException(f);
4438	<	checkCompletedNormally(g, three);
4439	<	assertTrue(r.ran);
4440	<
4441	<	f = new CompletableFuture<>();
4442	<	g = f.handleAsync(r = new IntegerHandler(), exec);
4443	<	assertFalse(r.ran);
4444	<	f.complete(one);
4445	<	checkCompletedNormally(f, one);
4446	<	checkCompletedNormally(g, two);
4447	<	assertTrue(r.ran);
4448	<
4449	<	f = new CompletableFuture<>();
4450	<	g = f.handleAsync(r = new IntegerHandler(), exec);
4451	<	assertFalse(r.ran);
4452	<	f.complete(one);
4453	<	checkCompletedNormally(f, one);
4454	<	checkCompletedNormally(g, two);
4455	<	assertTrue(r.ran);
4456	<	}
4416	>	* Reproduction recipe for:
4417	>	* 8160402: Garbage retention with CompletableFuture.anyOf
4418	>	* 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
4419	>	*/
4420	>	public void testAnyOfGarbageRetention() throws Throwable {
4421	>	for (Integer v : new Integer[] { 1, null })
4422	>	{
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	>	fs[fs.length - 1].complete(v);
4429	>	for (int i = 0; i < n; i++)
4430	>	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4431	>	}}
4432	>
4433	>	/**
4434	>	* Checks for garbage retention with allOf.
4435	>	*
4436	>	* As of 2016-07, fails with OOME:
4437	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4438	>	*/
4439	>	public void testCancelledAllOfGarbageRetention() throws Throwable {
4440	>	final int n = expensiveTests ? 100_000 : 10;
4441	>	CompletableFuture<Integer>[] fs
4442	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4443	>	for (int i = 0; i < fs.length; i++)
4444	>	fs[i] = new CompletableFuture<>();
4445	>	for (int i = 0; i < n; i++)
4446	>	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4447	>	}
4448	>
4449	>	/**
4450	>	* Checks for garbage retention when a dependent future is
4451	>	* cancelled and garbage-collected.
4452	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4453	>	*
4454	>	* As of 2016-07, fails with OOME:
4455	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4456	>	*/
4457	>	public void testCancelledGarbageRetention() throws Throwable {
4458	>	final int n = expensiveTests ? 100_000 : 10;
4459	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4460	>	for (int i = 0; i < n; i++)
4461	>	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4462	>	}
4463	>
4464	>	/**
4465	>	* Checks for garbage retention when MinimalStage.toCompletableFuture()
4466	>	* is invoked many times.
4467	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4468	>	*
4469	>	* As of 2016-07, fails with OOME:
4470	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck
4471	>	*/
4472	>	public void testToCompletableFutureGarbageRetention() throws Throwable {
4473	>	final int n = expensiveTests ? 900_000 : 10;
4474	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4475	>	CompletionStage minimal = neverCompleted.minimalCompletionStage();
4476	>	for (int i = 0; i < n; i++)
4477	>	assertTrue(minimal.toCompletableFuture().cancel(true));
4478	>	}
4479	>
4480	>	//     static <U> U join(CompletionStage<U> stage) {
4481	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4482	>	//         stage.whenComplete((v, ex) -> {
4483	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4484	>	//         });
4485	>	//         return f.join();
4486	>	//     }
4487	>
4488	>	//     static <U> boolean isDone(CompletionStage<U> stage) {
4489	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4490	>	//         stage.whenComplete((v, ex) -> {
4491	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4492	>	//         });
4493	>	//         return f.isDone();
4494	>	//     }
4495	>
4496	>	//     static <U> U join2(CompletionStage<U> stage) {
4497	>	//         return stage.toCompletableFuture().copy().join();
4498	>	//     }
4499	>
4500	>	//     static <U> boolean isDone2(CompletionStage<U> stage) {
4501	>	//         return stage.toCompletableFuture().copy().isDone();
4502	>	//     }
4503
4504		}

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