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Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.24 by jsr166, Sun Apr 14 05:45:38 2013 UTC vs.
Revision 1.169 by jsr166, Mon Jul 18 17:42:35 2016 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.TimeUnit;
36		import java.util.concurrent.atomic.AtomicInteger;
37	<	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;
37	>	import java.util.concurrent.atomic.AtomicReference;
38		import java.util.function.BiConsumer;
27	–	import java.util.function.Function;
39		import java.util.function.BiFunction;
40	+	import java.util.function.Consumer;
41	+	import java.util.function.Function;
42	+	import java.util.function.Predicate;
43	+	import java.util.function.Supplier;
44	+
45	+	import junit.framework.AssertionFailedError;
46	+	import junit.framework.Test;
47	+	import junit.framework.TestSuite;
48
49		public class CompletableFutureTest extends JSR166TestCase {
50
51		public static void main(String[] args) {
52	<	junit.textui.TestRunner.run(suite());
52	>	main(suite(), args);
53		}
54		public static Test suite() {
55		return new TestSuite(CompletableFutureTest.class);
#	Line 41 | Line 60 | public class CompletableFutureTest exten
60		void checkIncomplete(CompletableFuture<?> f) {
61		assertFalse(f.isDone());
62		assertFalse(f.isCancelled());
63	<	assertTrue(f.toString().contains("[Not completed]"));
63	>	assertTrue(f.toString().contains("Not completed"));
64		try {
65		assertNull(f.getNow(null));
66		} catch (Throwable fail) { threadUnexpectedException(fail); }
#	Line 54 | Line 73 | public class CompletableFutureTest exten
73		}
74
75		<T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
76	<	try {
77	<	assertEquals(value, f.get(LONG_DELAY_MS, MILLISECONDS));
59	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
76	>	checkTimedGet(f, value);
77	>
78		try {
79		assertEquals(value, f.join());
80		} catch (Throwable fail) { threadUnexpectedException(fail); }
#	Line 68 | Line 86 | public class CompletableFutureTest exten
86		} catch (Throwable fail) { threadUnexpectedException(fail); }
87		assertTrue(f.isDone());
88		assertFalse(f.isCancelled());
89	+	assertFalse(f.isCompletedExceptionally());
90		assertTrue(f.toString().contains("[Completed normally]"));
91		}
92
93	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
93	>	/**
94	>	* Returns the "raw" internal exceptional completion of f,
95	>	* without any additional wrapping with CompletionException.
96	>	*/
97	>	<U> Throwable exceptionalCompletion(CompletableFuture<U> f) {
98	>	// handle (and whenComplete) can distinguish between "direct"
99	>	// and "wrapped" exceptional completion
100	>	return f.handle((U u, Throwable t) -> t).join();
101	>	}
102	>
103	>	void checkCompletedExceptionally(CompletableFuture<?> f,
104	>	boolean wrapped,
105	>	Consumer<Throwable> checker) {
106	>	Throwable cause = exceptionalCompletion(f);
107	>	if (wrapped) {
108	>	assertTrue(cause instanceof CompletionException);
109	>	cause = cause.getCause();
110	>	}
111	>	checker.accept(cause);
112	>
113	>	long startTime = System.nanoTime();
114		try {
115		f.get(LONG_DELAY_MS, MILLISECONDS);
116		shouldThrow();
117		} catch (ExecutionException success) {
118	<	assertTrue(success.getCause() instanceof CFException);
118	>	assertSame(cause, success.getCause());
119		} catch (Throwable fail) { threadUnexpectedException(fail); }
120	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
121	+
122		try {
123		f.join();
124		shouldThrow();
125		} catch (CompletionException success) {
126	<	assertTrue(success.getCause() instanceof CFException);
127	<	}
126	>	assertSame(cause, success.getCause());
127	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
128	>
129		try {
130		f.getNow(null);
131		shouldThrow();
132		} catch (CompletionException success) {
133	<	assertTrue(success.getCause() instanceof CFException);
134	<	}
133	>	assertSame(cause, success.getCause());
134	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
135	>
136		try {
137		f.get();
138		shouldThrow();
139		} catch (ExecutionException success) {
140	<	assertTrue(success.getCause() instanceof CFException);
140	>	assertSame(cause, success.getCause());
141		} catch (Throwable fail) { threadUnexpectedException(fail); }
142	<	assertTrue(f.isDone());
142	>
143		assertFalse(f.isCancelled());
144	+	assertTrue(f.isDone());
145	+	assertTrue(f.isCompletedExceptionally());
146		assertTrue(f.toString().contains("[Completed exceptionally]"));
147		}
148
149	+	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
150	+	checkCompletedExceptionally(f, true,
151	+	(t) -> assertTrue(t instanceof CFException));
152	+	}
153	+
154	+	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
155	+	checkCompletedExceptionally(f, true,
156	+	(t) -> assertTrue(t instanceof CancellationException));
157	+	}
158	+
159	+	void checkCompletedWithTimeoutException(CompletableFuture<?> f) {
160	+	checkCompletedExceptionally(f, false,
161	+	(t) -> assertTrue(t instanceof TimeoutException));
162	+	}
163	+
164	+	void checkCompletedWithWrappedException(CompletableFuture<?> f,
165	+	Throwable ex) {
166	+	checkCompletedExceptionally(f, true, (t) -> assertSame(t, ex));
167	+	}
168	+
169	+	void checkCompletedExceptionally(CompletableFuture<?> f, Throwable ex) {
170	+	checkCompletedExceptionally(f, false, (t) -> assertSame(t, ex));
171	+	}
172	+
173		void checkCancelled(CompletableFuture<?> f) {
174	+	long startTime = System.nanoTime();
175		try {
176		f.get(LONG_DELAY_MS, MILLISECONDS);
177		shouldThrow();
178		} catch (CancellationException success) {
179		} catch (Throwable fail) { threadUnexpectedException(fail); }
180	+	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
181	+
182		try {
183		f.join();
184		shouldThrow();
#	Line 120 | Line 192 | public class CompletableFutureTest exten
192		shouldThrow();
193		} catch (CancellationException success) {
194		} catch (Throwable fail) { threadUnexpectedException(fail); }
123	–	assertTrue(f.isDone());
124	–	assertTrue(f.isCancelled());
125	–	assertTrue(f.toString().contains("[Completed exceptionally]"));
126	–	}
195
196	<	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
197	<	try {
130	<	f.get(LONG_DELAY_MS, MILLISECONDS);
131	<	shouldThrow();
132	<	} catch (ExecutionException success) {
133	<	assertTrue(success.getCause() instanceof CancellationException);
134	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
135	<	try {
136	<	f.join();
137	<	shouldThrow();
138	<	} catch (CompletionException success) {
139	<	assertTrue(success.getCause() instanceof CancellationException);
140	<	}
141	<	try {
142	<	f.getNow(null);
143	<	shouldThrow();
144	<	} catch (CompletionException success) {
145	<	assertTrue(success.getCause() instanceof CancellationException);
146	<	}
147	<	try {
148	<	f.get();
149	<	shouldThrow();
150	<	} catch (ExecutionException success) {
151	<	assertTrue(success.getCause() instanceof CancellationException);
152	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
196	>	assertTrue(exceptionalCompletion(f) instanceof CancellationException);
197	>
198		assertTrue(f.isDone());
199	<	assertFalse(f.isCancelled());
199	>	assertTrue(f.isCompletedExceptionally());
200	>	assertTrue(f.isCancelled());
201		assertTrue(f.toString().contains("[Completed exceptionally]"));
202		}
203
#	Line 169 | Line 215 | public class CompletableFutureTest exten
215		* isCancelled, join, get, and getNow
216		*/
217		public void testComplete() {
218	+	for (Integer v1 : new Integer[] { 1, null })
219	+	{
220		CompletableFuture<Integer> f = new CompletableFuture<>();
221		checkIncomplete(f);
222	<	f.complete(one);
223	<	checkCompletedNormally(f, one);
224	<	}
222	>	assertTrue(f.complete(v1));
223	>	assertFalse(f.complete(v1));
224	>	checkCompletedNormally(f, v1);
225	>	}}
226
227		/**
228		* completeExceptionally completes exceptionally, as indicated by
#	Line 181 | Line 230 | public class CompletableFutureTest exten
230		*/
231		public void testCompleteExceptionally() {
232		CompletableFuture<Integer> f = new CompletableFuture<>();
233	+	CFException ex = new CFException();
234		checkIncomplete(f);
235	<	f.completeExceptionally(new CFException());
236	<	checkCompletedWithWrappedCFException(f);
235	>	f.completeExceptionally(ex);
236	>	checkCompletedExceptionally(f, ex);
237		}
238
239		/**
#	Line 191 | Line 241 | public class CompletableFutureTest exten
241		* methods isDone, isCancelled, join, get, and getNow
242		*/
243		public void testCancel() {
244	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
245	+	{
246		CompletableFuture<Integer> f = new CompletableFuture<>();
247		checkIncomplete(f);
248	<	assertTrue(f.cancel(true));
248	>	assertTrue(f.cancel(mayInterruptIfRunning));
249	>	assertTrue(f.cancel(mayInterruptIfRunning));
250	>	assertTrue(f.cancel(!mayInterruptIfRunning));
251		checkCancelled(f);
252	<	}
252	>	}}
253
254		/**
255		* obtrudeValue forces completion with given value
#	Line 203 | Line 257 | public class CompletableFutureTest exten
257		public void testObtrudeValue() {
258		CompletableFuture<Integer> f = new CompletableFuture<>();
259		checkIncomplete(f);
260	<	f.complete(one);
260	>	assertTrue(f.complete(one));
261		checkCompletedNormally(f, one);
262		f.obtrudeValue(three);
263		checkCompletedNormally(f, three);
#	Line 212 | Line 266 | public class CompletableFutureTest exten
266		f = new CompletableFuture<>();
267		f.obtrudeValue(three);
268		checkCompletedNormally(f, three);
269	+	f.obtrudeValue(null);
270	+	checkCompletedNormally(f, null);
271		f = new CompletableFuture<>();
272		f.completeExceptionally(new CFException());
273		f.obtrudeValue(four);
#	Line 222 | Line 278 | public class CompletableFutureTest exten
278		* obtrudeException forces completion with given exception
279		*/
280		public void testObtrudeException() {
281	<	CompletableFuture<Integer> f = new CompletableFuture<>();
282	<	checkIncomplete(f);
283	<	f.complete(one);
284	<	checkCompletedNormally(f, one);
285	<	f.obtrudeException(new CFException());
286	<	checkCompletedWithWrappedCFException(f);
281	>	for (Integer v1 : new Integer[] { 1, null })
282	>	{
283	>	CFException ex;
284	>	CompletableFuture<Integer> f;
285	>
286	>	f = new CompletableFuture<>();
287	>	assertTrue(f.complete(v1));
288	>	for (int i = 0; i < 2; i++) {
289	>	f.obtrudeException(ex = new CFException());
290	>	checkCompletedExceptionally(f, ex);
291	>	}
292	>
293		f = new CompletableFuture<>();
294	<	f.obtrudeException(new CFException());
295	<	checkCompletedWithWrappedCFException(f);
294	>	for (int i = 0; i < 2; i++) {
295	>	f.obtrudeException(ex = new CFException());
296	>	checkCompletedExceptionally(f, ex);
297	>	}
298	>
299		f = new CompletableFuture<>();
300	<	f.completeExceptionally(new CFException());
301	<	f.obtrudeValue(four);
302	<	checkCompletedNormally(f, four);
303	<	f.obtrudeException(new CFException());
304	<	checkCompletedWithWrappedCFException(f);
305	<	}
300	>	f.completeExceptionally(ex = new CFException());
301	>	f.obtrudeValue(v1);
302	>	checkCompletedNormally(f, v1);
303	>	f.obtrudeException(ex = new CFException());
304	>	checkCompletedExceptionally(f, ex);
305	>	f.completeExceptionally(new CFException());
306	>	checkCompletedExceptionally(f, ex);
307	>	assertFalse(f.complete(v1));
308	>	checkCompletedExceptionally(f, ex);
309	>	}}
310
311		/**
312		* getNumberOfDependents returns number of dependent tasks
313		*/
314		public void testGetNumberOfDependents() {
315	<	CompletableFuture<Integer> f = new CompletableFuture<>();
316	<	assertEquals(f.getNumberOfDependents(), 0);
317	<	CompletableFuture g = f.thenRun(new Noop());
318	<	assertEquals(f.getNumberOfDependents(), 1);
319	<	assertEquals(g.getNumberOfDependents(), 0);
320	<	CompletableFuture h = f.thenRun(new Noop());
321	<	assertEquals(f.getNumberOfDependents(), 2);
322	<	f.complete(1);
315	>	for (ExecutionMode m : ExecutionMode.values())
316	>	for (Integer v1 : new Integer[] { 1, null })
317	>	{
318	>	CompletableFuture<Integer> f = new CompletableFuture<>();
319	>	assertEquals(0, f.getNumberOfDependents());
320	>	final CompletableFuture<Void> g = m.thenRun(f, new Noop(m));
321	>	assertEquals(1, f.getNumberOfDependents());
322	>	assertEquals(0, g.getNumberOfDependents());
323	>	final CompletableFuture<Void> h = m.thenRun(f, new Noop(m));
324	>	assertEquals(2, f.getNumberOfDependents());
325	>	assertEquals(0, h.getNumberOfDependents());
326	>	assertTrue(f.complete(v1));
327		checkCompletedNormally(g, null);
328	<	assertEquals(f.getNumberOfDependents(), 0);
329	<	assertEquals(g.getNumberOfDependents(), 0);
330	<	}
331	<
328	>	checkCompletedNormally(h, null);
329	>	assertEquals(0, f.getNumberOfDependents());
330	>	assertEquals(0, g.getNumberOfDependents());
331	>	assertEquals(0, h.getNumberOfDependents());
332	>	}}
333
334		/**
335		* toString indicates current completion state
#	Line 266 | Line 340 | public class CompletableFutureTest exten
340		f = new CompletableFuture<String>();
341		assertTrue(f.toString().contains("[Not completed]"));
342
343	<	f.complete("foo");
343	>	assertTrue(f.complete("foo"));
344		assertTrue(f.toString().contains("[Completed normally]"));
345
346		f = new CompletableFuture<String>();
347	<	f.completeExceptionally(new IndexOutOfBoundsException());
347	>	assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
348		assertTrue(f.toString().contains("[Completed exceptionally]"));
349	+
350	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
351	+	f = new CompletableFuture<String>();
352	+	assertTrue(f.cancel(mayInterruptIfRunning));
353	+	assertTrue(f.toString().contains("[Completed exceptionally]"));
354	+	}
355		}
356
357		/**
#	Line 282 | Line 362 | public class CompletableFutureTest exten
362		checkCompletedNormally(f, "test");
363		}
364
365	<	// Choose non-commutative actions for better coverage
365	>	abstract class CheckedAction {
366	>	int invocationCount = 0;
367	>	final ExecutionMode m;
368	>	CheckedAction(ExecutionMode m) { this.m = m; }
369	>	void invoked() {
370	>	m.checkExecutionMode();
371	>	assertEquals(0, invocationCount++);
372	>	}
373	>	void assertNotInvoked() { assertEquals(0, invocationCount); }
374	>	void assertInvoked() { assertEquals(1, invocationCount); }
375	>	}
376	>
377	>	abstract class CheckedIntegerAction extends CheckedAction {
378	>	Integer value;
379	>	CheckedIntegerAction(ExecutionMode m) { super(m); }
380	>	void assertValue(Integer expected) {
381	>	assertInvoked();
382	>	assertEquals(expected, value);
383	>	}
384	>	}
385	>
386	>	class IntegerSupplier extends CheckedAction
387	>	implements Supplier<Integer>
388	>	{
389	>	final Integer value;
390	>	IntegerSupplier(ExecutionMode m, Integer value) {
391	>	super(m);
392	>	this.value = value;
393	>	}
394	>	public Integer get() {
395	>	invoked();
396	>	return value;
397	>	}
398	>	}
399
400	<	static final Supplier<Integer> supplyOne =
401	<	() -> Integer.valueOf(1);
402	<	static final Function<Integer, Integer> inc =
290	<	(Integer x) -> Integer.valueOf(x.intValue() + 1);
291	<	static final BiFunction<Integer, Integer, Integer> subtract =
292	<	(Integer x, Integer y) -> Integer.valueOf(x.intValue() - y.intValue());
293	<	static final class IncAction implements Consumer<Integer> {
294	<	int value;
295	<	public void accept(Integer x) { value = x.intValue() + 1; }
400	>	// A function that handles and produces null values as well.
401	>	static Integer inc(Integer x) {
402	>	return (x == null) ? null : x + 1;
403		}
404	<	static final class SubtractAction implements BiConsumer<Integer, Integer> {
405	<	int value;
404	>
405	>	class NoopConsumer extends CheckedIntegerAction
406	>	implements Consumer<Integer>
407	>	{
408	>	NoopConsumer(ExecutionMode m) { super(m); }
409	>	public void accept(Integer x) {
410	>	invoked();
411	>	value = x;
412	>	}
413	>	}
414	>
415	>	class IncFunction extends CheckedIntegerAction
416	>	implements Function<Integer,Integer>
417	>	{
418	>	IncFunction(ExecutionMode m) { super(m); }
419	>	public Integer apply(Integer x) {
420	>	invoked();
421	>	return value = inc(x);
422	>	}
423	>	}
424	>
425	>	// Choose non-commutative actions for better coverage
426	>	// A non-commutative function that handles and produces null values as well.
427	>	static Integer subtract(Integer x, Integer y) {
428	>	return (x == null && y == null) ? null :
429	>	((x == null) ? 42 : x.intValue())
430	>	- ((y == null) ? 99 : y.intValue());
431	>	}
432	>
433	>	class SubtractAction extends CheckedIntegerAction
434	>	implements BiConsumer<Integer, Integer>
435	>	{
436	>	SubtractAction(ExecutionMode m) { super(m); }
437		public void accept(Integer x, Integer y) {
438	<	value = x.intValue() - y.intValue();
438	>	invoked();
439	>	value = subtract(x, y);
440		}
441		}
442	<	static final class Noop implements Runnable {
443	<	boolean ran;
444	<	public void run() { ran = true; }
442	>
443	>	class SubtractFunction extends CheckedIntegerAction
444	>	implements BiFunction<Integer, Integer, Integer>
445	>	{
446	>	SubtractFunction(ExecutionMode m) { super(m); }
447	>	public Integer apply(Integer x, Integer y) {
448	>	invoked();
449	>	return value = subtract(x, y);
450	>	}
451		}
452
453	<	static final class FailingSupplier implements Supplier<Integer> {
454	<	boolean ran;
455	<	public Integer get() { ran = true; throw new CFException(); }
453	>	class Noop extends CheckedAction implements Runnable {
454	>	Noop(ExecutionMode m) { super(m); }
455	>	public void run() {
456	>	invoked();
457	>	}
458		}
459	<	static final class FailingConsumer implements Consumer<Integer> {
460	<	boolean ran;
461	<	public void accept(Integer x) { ran = true; throw new CFException(); }
459	>
460	>	class FailingSupplier extends CheckedAction
461	>	implements Supplier<Integer>
462	>	{
463	>	final CFException ex;
464	>	FailingSupplier(ExecutionMode m) { super(m); ex = new CFException(); }
465	>	public Integer get() {
466	>	invoked();
467	>	throw ex;
468	>	}
469		}
470	<	static final class FailingBiConsumer implements BiConsumer<Integer, Integer> {
471	<	boolean ran;
472	<	public void accept(Integer x, Integer y) { ran = true; throw new CFException(); }
470	>
471	>	class FailingConsumer extends CheckedIntegerAction
472	>	implements Consumer<Integer>
473	>	{
474	>	final CFException ex;
475	>	FailingConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
476	>	public void accept(Integer x) {
477	>	invoked();
478	>	value = x;
479	>	throw ex;
480	>	}
481		}
482	<	static final class FailingFunction implements Function<Integer, Integer> {
483	<	boolean ran;
484	<	public Integer apply(Integer x) { ran = true; throw new CFException(); }
482	>
483	>	class FailingBiConsumer extends CheckedIntegerAction
484	>	implements BiConsumer<Integer, Integer>
485	>	{
486	>	final CFException ex;
487	>	FailingBiConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
488	>	public void accept(Integer x, Integer y) {
489	>	invoked();
490	>	value = subtract(x, y);
491	>	throw ex;
492	>	}
493		}
494	<	static final class FailingBiFunction implements BiFunction<Integer, Integer, Integer> {
495	<	boolean ran;
496	<	public Integer apply(Integer x, Integer y) { ran = true; throw new CFException(); }
494	>
495	>	class FailingFunction extends CheckedIntegerAction
496	>	implements Function<Integer, Integer>
497	>	{
498	>	final CFException ex;
499	>	FailingFunction(ExecutionMode m) { super(m); ex = new CFException(); }
500	>	public Integer apply(Integer x) {
501	>	invoked();
502	>	value = x;
503	>	throw ex;
504	>	}
505		}
506	<	static final class FailingNoop implements Runnable {
507	<	boolean ran;
508	<	public void run() { ran = true; throw new CFException(); }
506	>
507	>	class FailingBiFunction extends CheckedIntegerAction
508	>	implements BiFunction<Integer, Integer, Integer>
509	>	{
510	>	final CFException ex;
511	>	FailingBiFunction(ExecutionMode m) { super(m); ex = new CFException(); }
512	>	public Integer apply(Integer x, Integer y) {
513	>	invoked();
514	>	value = subtract(x, y);
515	>	throw ex;
516	>	}
517		}
518
519	<	static final class CompletableFutureInc
520	<	implements Function<Integer, CompletableFuture<Integer>> {
521	<	boolean ran;
519	>	class FailingRunnable extends CheckedAction implements Runnable {
520	>	final CFException ex;
521	>	FailingRunnable(ExecutionMode m) { super(m); ex = new CFException(); }
522	>	public void run() {
523	>	invoked();
524	>	throw ex;
525	>	}
526	>	}
527	>
528	>	class CompletableFutureInc extends CheckedIntegerAction
529	>	implements Function<Integer, CompletableFuture<Integer>>
530	>	{
531	>	CompletableFutureInc(ExecutionMode m) { super(m); }
532		public CompletableFuture<Integer> apply(Integer x) {
533	<	ran = true;
533	>	invoked();
534	>	value = x;
535		CompletableFuture<Integer> f = new CompletableFuture<>();
536	<	f.complete(Integer.valueOf(x.intValue() + 1));
536	>	assertTrue(f.complete(inc(x)));
537		return f;
538		}
539		}
540
541	<	static final class FailingCompletableFutureFunction
542	<	implements Function<Integer, CompletableFuture<Integer>> {
543	<	boolean ran;
541	>	class FailingCompletableFutureFunction extends CheckedIntegerAction
542	>	implements Function<Integer, CompletableFuture<Integer>>
543	>	{
544	>	final CFException ex;
545	>	FailingCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
546		public CompletableFuture<Integer> apply(Integer x) {
547	<	ran = true; throw new CFException();
547	>	invoked();
548	>	value = x;
549	>	throw ex;
550	>	}
551	>	}
552	>
553	>	static class CountingRejectingExecutor implements Executor {
554	>	final RejectedExecutionException ex = new RejectedExecutionException();
555	>	final AtomicInteger count = new AtomicInteger(0);
556	>	public void execute(Runnable r) {
557	>	count.getAndIncrement();
558	>	throw ex;
559		}
560		}
561
562		// Used for explicit executor tests
563		static final class ThreadExecutor implements Executor {
564	<	AtomicInteger count = new AtomicInteger(0);
564	>	final AtomicInteger count = new AtomicInteger(0);
565	>	static final ThreadGroup tg = new ThreadGroup("ThreadExecutor");
566	>	static boolean startedCurrentThread() {
567	>	return Thread.currentThread().getThreadGroup() == tg;
568	>	}
569
570		public void execute(Runnable r) {
571		count.getAndIncrement();
572	<	new Thread(r).start();
572	>	new Thread(tg, r).start();
573		}
574		}
575
576	<	static final class ExceptionToInteger implements Function<Throwable, Integer> {
577	<	public Integer apply(Throwable x) { return Integer.valueOf(3); }
364	<	}
576	>	static final boolean defaultExecutorIsCommonPool
577	>	= ForkJoinPool.getCommonPoolParallelism() > 1;
578
579	<	static final class IntegerHandler implements BiFunction<Integer, Throwable, Integer> {
580	<	boolean ran;
581	<	public Integer apply(Integer x, Throwable t) {
582	<	ran = true;
583	<	return (t == null) ? two : three;
584	<	}
585	<	}
579	>	/**
580	>	* Permits the testing of parallel code for the 3 different
581	>	* execution modes without copy/pasting all the test methods.
582	>	*/
583	>	enum ExecutionMode {
584	>	SYNC {
585	>	public void checkExecutionMode() {
586	>	assertFalse(ThreadExecutor.startedCurrentThread());
587	>	assertNull(ForkJoinTask.getPool());
588	>	}
589	>	public CompletableFuture<Void> runAsync(Runnable a) {
590	>	throw new UnsupportedOperationException();
591	>	}
592	>	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
593	>	throw new UnsupportedOperationException();
594	>	}
595	>	public <T> CompletableFuture<Void> thenRun
596	>	(CompletableFuture<T> f, Runnable a) {
597	>	return f.thenRun(a);
598	>	}
599	>	public <T> CompletableFuture<Void> thenAccept
600	>	(CompletableFuture<T> f, Consumer<? super T> a) {
601	>	return f.thenAccept(a);
602	>	}
603	>	public <T,U> CompletableFuture<U> thenApply
604	>	(CompletableFuture<T> f, Function<? super T,U> a) {
605	>	return f.thenApply(a);
606	>	}
607	>	public <T,U> CompletableFuture<U> thenCompose
608	>	(CompletableFuture<T> f,
609	>	Function<? super T,? extends CompletionStage<U>> a) {
610	>	return f.thenCompose(a);
611	>	}
612	>	public <T,U> CompletableFuture<U> handle
613	>	(CompletableFuture<T> f,
614	>	BiFunction<? super T,Throwable,? extends U> a) {
615	>	return f.handle(a);
616	>	}
617	>	public <T> CompletableFuture<T> whenComplete
618	>	(CompletableFuture<T> f,
619	>	BiConsumer<? super T,? super Throwable> a) {
620	>	return f.whenComplete(a);
621	>	}
622	>	public <T,U> CompletableFuture<Void> runAfterBoth
623	>	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
624	>	return f.runAfterBoth(g, a);
625	>	}
626	>	public <T,U> CompletableFuture<Void> thenAcceptBoth
627	>	(CompletableFuture<T> f,
628	>	CompletionStage<? extends U> g,
629	>	BiConsumer<? super T,? super U> a) {
630	>	return f.thenAcceptBoth(g, a);
631	>	}
632	>	public <T,U,V> CompletableFuture<V> thenCombine
633	>	(CompletableFuture<T> f,
634	>	CompletionStage<? extends U> g,
635	>	BiFunction<? super T,? super U,? extends V> a) {
636	>	return f.thenCombine(g, a);
637	>	}
638	>	public <T> CompletableFuture<Void> runAfterEither
639	>	(CompletableFuture<T> f,
640	>	CompletionStage<?> g,
641	>	java.lang.Runnable a) {
642	>	return f.runAfterEither(g, a);
643	>	}
644	>	public <T> CompletableFuture<Void> acceptEither
645	>	(CompletableFuture<T> f,
646	>	CompletionStage<? extends T> g,
647	>	Consumer<? super T> a) {
648	>	return f.acceptEither(g, a);
649	>	}
650	>	public <T,U> CompletableFuture<U> applyToEither
651	>	(CompletableFuture<T> f,
652	>	CompletionStage<? extends T> g,
653	>	Function<? super T,U> a) {
654	>	return f.applyToEither(g, a);
655	>	}
656	>	},
657
658	+	ASYNC {
659	+	public void checkExecutionMode() {
660	+	assertEquals(defaultExecutorIsCommonPool,
661	+	(ForkJoinPool.commonPool() == ForkJoinTask.getPool()));
662	+	}
663	+	public CompletableFuture<Void> runAsync(Runnable a) {
664	+	return CompletableFuture.runAsync(a);
665	+	}
666	+	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
667	+	return CompletableFuture.supplyAsync(a);
668	+	}
669	+	public <T> CompletableFuture<Void> thenRun
670	+	(CompletableFuture<T> f, Runnable a) {
671	+	return f.thenRunAsync(a);
672	+	}
673	+	public <T> CompletableFuture<Void> thenAccept
674	+	(CompletableFuture<T> f, Consumer<? super T> a) {
675	+	return f.thenAcceptAsync(a);
676	+	}
677	+	public <T,U> CompletableFuture<U> thenApply
678	+	(CompletableFuture<T> f, Function<? super T,U> a) {
679	+	return f.thenApplyAsync(a);
680	+	}
681	+	public <T,U> CompletableFuture<U> thenCompose
682	+	(CompletableFuture<T> f,
683	+	Function<? super T,? extends CompletionStage<U>> a) {
684	+	return f.thenComposeAsync(a);
685	+	}
686	+	public <T,U> CompletableFuture<U> handle
687	+	(CompletableFuture<T> f,
688	+	BiFunction<? super T,Throwable,? extends U> a) {
689	+	return f.handleAsync(a);
690	+	}
691	+	public <T> CompletableFuture<T> whenComplete
692	+	(CompletableFuture<T> f,
693	+	BiConsumer<? super T,? super Throwable> a) {
694	+	return f.whenCompleteAsync(a);
695	+	}
696	+	public <T,U> CompletableFuture<Void> runAfterBoth
697	+	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
698	+	return f.runAfterBothAsync(g, a);
699	+	}
700	+	public <T,U> CompletableFuture<Void> thenAcceptBoth
701	+	(CompletableFuture<T> f,
702	+	CompletionStage<? extends U> g,
703	+	BiConsumer<? super T,? super U> a) {
704	+	return f.thenAcceptBothAsync(g, a);
705	+	}
706	+	public <T,U,V> CompletableFuture<V> thenCombine
707	+	(CompletableFuture<T> f,
708	+	CompletionStage<? extends U> g,
709	+	BiFunction<? super T,? super U,? extends V> a) {
710	+	return f.thenCombineAsync(g, a);
711	+	}
712	+	public <T> CompletableFuture<Void> runAfterEither
713	+	(CompletableFuture<T> f,
714	+	CompletionStage<?> g,
715	+	java.lang.Runnable a) {
716	+	return f.runAfterEitherAsync(g, a);
717	+	}
718	+	public <T> CompletableFuture<Void> acceptEither
719	+	(CompletableFuture<T> f,
720	+	CompletionStage<? extends T> g,
721	+	Consumer<? super T> a) {
722	+	return f.acceptEitherAsync(g, a);
723	+	}
724	+	public <T,U> CompletableFuture<U> applyToEither
725	+	(CompletableFuture<T> f,
726	+	CompletionStage<? extends T> g,
727	+	Function<? super T,U> a) {
728	+	return f.applyToEitherAsync(g, a);
729	+	}
730	+	},
731	+
732	+	EXECUTOR {
733	+	public void checkExecutionMode() {
734	+	assertTrue(ThreadExecutor.startedCurrentThread());
735	+	}
736	+	public CompletableFuture<Void> runAsync(Runnable a) {
737	+	return CompletableFuture.runAsync(a, new ThreadExecutor());
738	+	}
739	+	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
740	+	return CompletableFuture.supplyAsync(a, new ThreadExecutor());
741	+	}
742	+	public <T> CompletableFuture<Void> thenRun
743	+	(CompletableFuture<T> f, Runnable a) {
744	+	return f.thenRunAsync(a, new ThreadExecutor());
745	+	}
746	+	public <T> CompletableFuture<Void> thenAccept
747	+	(CompletableFuture<T> f, Consumer<? super T> a) {
748	+	return f.thenAcceptAsync(a, new ThreadExecutor());
749	+	}
750	+	public <T,U> CompletableFuture<U> thenApply
751	+	(CompletableFuture<T> f, Function<? super T,U> a) {
752	+	return f.thenApplyAsync(a, new ThreadExecutor());
753	+	}
754	+	public <T,U> CompletableFuture<U> thenCompose
755	+	(CompletableFuture<T> f,
756	+	Function<? super T,? extends CompletionStage<U>> a) {
757	+	return f.thenComposeAsync(a, new ThreadExecutor());
758	+	}
759	+	public <T,U> CompletableFuture<U> handle
760	+	(CompletableFuture<T> f,
761	+	BiFunction<? super T,Throwable,? extends U> a) {
762	+	return f.handleAsync(a, new ThreadExecutor());
763	+	}
764	+	public <T> CompletableFuture<T> whenComplete
765	+	(CompletableFuture<T> f,
766	+	BiConsumer<? super T,? super Throwable> a) {
767	+	return f.whenCompleteAsync(a, new ThreadExecutor());
768	+	}
769	+	public <T,U> CompletableFuture<Void> runAfterBoth
770	+	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
771	+	return f.runAfterBothAsync(g, a, new ThreadExecutor());
772	+	}
773	+	public <T,U> CompletableFuture<Void> thenAcceptBoth
774	+	(CompletableFuture<T> f,
775	+	CompletionStage<? extends U> g,
776	+	BiConsumer<? super T,? super U> a) {
777	+	return f.thenAcceptBothAsync(g, a, new ThreadExecutor());
778	+	}
779	+	public <T,U,V> CompletableFuture<V> thenCombine
780	+	(CompletableFuture<T> f,
781	+	CompletionStage<? extends U> g,
782	+	BiFunction<? super T,? super U,? extends V> a) {
783	+	return f.thenCombineAsync(g, a, new ThreadExecutor());
784	+	}
785	+	public <T> CompletableFuture<Void> runAfterEither
786	+	(CompletableFuture<T> f,
787	+	CompletionStage<?> g,
788	+	java.lang.Runnable a) {
789	+	return f.runAfterEitherAsync(g, a, new ThreadExecutor());
790	+	}
791	+	public <T> CompletableFuture<Void> acceptEither
792	+	(CompletableFuture<T> f,
793	+	CompletionStage<? extends T> g,
794	+	Consumer<? super T> a) {
795	+	return f.acceptEitherAsync(g, a, new ThreadExecutor());
796	+	}
797	+	public <T,U> CompletableFuture<U> applyToEither
798	+	(CompletableFuture<T> f,
799	+	CompletionStage<? extends T> g,
800	+	Function<? super T,U> a) {
801	+	return f.applyToEitherAsync(g, a, new ThreadExecutor());
802	+	}
803	+	};
804	+
805	+	public abstract void checkExecutionMode();
806	+	public abstract CompletableFuture<Void> runAsync(Runnable a);
807	+	public abstract <U> CompletableFuture<U> supplyAsync(Supplier<U> a);
808	+	public abstract <T> CompletableFuture<Void> thenRun
809	+	(CompletableFuture<T> f, Runnable a);
810	+	public abstract <T> CompletableFuture<Void> thenAccept
811	+	(CompletableFuture<T> f, Consumer<? super T> a);
812	+	public abstract <T,U> CompletableFuture<U> thenApply
813	+	(CompletableFuture<T> f, Function<? super T,U> a);
814	+	public abstract <T,U> CompletableFuture<U> thenCompose
815	+	(CompletableFuture<T> f,
816	+	Function<? super T,? extends CompletionStage<U>> a);
817	+	public abstract <T,U> CompletableFuture<U> handle
818	+	(CompletableFuture<T> f,
819	+	BiFunction<? super T,Throwable,? extends U> a);
820	+	public abstract <T> CompletableFuture<T> whenComplete
821	+	(CompletableFuture<T> f,
822	+	BiConsumer<? super T,? super Throwable> a);
823	+	public abstract <T,U> CompletableFuture<Void> runAfterBoth
824	+	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a);
825	+	public abstract <T,U> CompletableFuture<Void> thenAcceptBoth
826	+	(CompletableFuture<T> f,
827	+	CompletionStage<? extends U> g,
828	+	BiConsumer<? super T,? super U> a);
829	+	public abstract <T,U,V> CompletableFuture<V> thenCombine
830	+	(CompletableFuture<T> f,
831	+	CompletionStage<? extends U> g,
832	+	BiFunction<? super T,? super U,? extends V> a);
833	+	public abstract <T> CompletableFuture<Void> runAfterEither
834	+	(CompletableFuture<T> f,
835	+	CompletionStage<?> g,
836	+	java.lang.Runnable a);
837	+	public abstract <T> CompletableFuture<Void> acceptEither
838	+	(CompletableFuture<T> f,
839	+	CompletionStage<? extends T> g,
840	+	Consumer<? super T> a);
841	+	public abstract <T,U> CompletableFuture<U> applyToEither
842	+	(CompletableFuture<T> f,
843	+	CompletionStage<? extends T> g,
844	+	Function<? super T,U> a);
845	+	}
846	+
847	+	/**
848	+	* exceptionally action is not invoked when source completes
849	+	* normally, and source result is propagated
850	+	*/
851	+	public void testExceptionally_normalCompletion() {
852	+	for (boolean createIncomplete : new boolean[] { true, false })
853	+	for (Integer v1 : new Integer[] { 1, null })
854	+	{
855	+	final AtomicInteger a = new AtomicInteger(0);
856	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
857	+	if (!createIncomplete) assertTrue(f.complete(v1));
858	+	final CompletableFuture<Integer> g = f.exceptionally
859	+	((Throwable t) -> {
860	+	a.getAndIncrement();
861	+	threadFail("should not be called");
862	+	return null;            // unreached
863	+	});
864	+	if (createIncomplete) assertTrue(f.complete(v1));
865	+
866	+	checkCompletedNormally(g, v1);
867	+	checkCompletedNormally(f, v1);
868	+	assertEquals(0, a.get());
869	+	}}
870
871		/**
872		* exceptionally action completes with function value on source
873	<	* exception;  otherwise with source value
873	>	* exception
874		*/
875	<	public void testExceptionally() {
876	<	CompletableFuture<Integer> f = new CompletableFuture<>();
877	<	ExceptionToInteger r = new ExceptionToInteger();
878	<	CompletableFuture<Integer> g = f.exceptionally(r);
879	<	f.completeExceptionally(new CFException());
880	<	checkCompletedNormally(g, three);
875	>	public void testExceptionally_exceptionalCompletion() {
876	>	for (boolean createIncomplete : new boolean[] { true, false })
877	>	for (Integer v1 : new Integer[] { 1, null })
878	>	{
879	>	final AtomicInteger a = new AtomicInteger(0);
880	>	final CFException ex = new CFException();
881	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
882	>	if (!createIncomplete) f.completeExceptionally(ex);
883	>	final CompletableFuture<Integer> g = f.exceptionally
884	>	((Throwable t) -> {
885	>	ExecutionMode.SYNC.checkExecutionMode();
886	>	threadAssertSame(t, ex);
887	>	a.getAndIncrement();
888	>	return v1;
889	>	});
890	>	if (createIncomplete) f.completeExceptionally(ex);
891	>
892	>	checkCompletedNormally(g, v1);
893	>	assertEquals(1, a.get());
894	>	}}
895	>
896	>	/**
897	>	* If an "exceptionally action" throws an exception, it completes
898	>	* exceptionally with that exception
899	>	*/
900	>	public void testExceptionally_exceptionalCompletionActionFailed() {
901	>	for (boolean createIncomplete : new boolean[] { true, false })
902	>	{
903	>	final AtomicInteger a = new AtomicInteger(0);
904	>	final CFException ex1 = new CFException();
905	>	final CFException ex2 = new CFException();
906	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
907	>	if (!createIncomplete) f.completeExceptionally(ex1);
908	>	final CompletableFuture<Integer> g = f.exceptionally
909	>	((Throwable t) -> {
910	>	ExecutionMode.SYNC.checkExecutionMode();
911	>	threadAssertSame(t, ex1);
912	>	a.getAndIncrement();
913	>	throw ex2;
914	>	});
915	>	if (createIncomplete) f.completeExceptionally(ex1);
916	>
917	>	checkCompletedWithWrappedException(g, ex2);
918	>	checkCompletedExceptionally(f, ex1);
919	>	assertEquals(1, a.get());
920	>	}}
921	>
922	>	/**
923	>	* whenComplete action executes on normal completion, propagating
924	>	* source result.
925	>	*/
926	>	public void testWhenComplete_normalCompletion() {
927	>	for (ExecutionMode m : ExecutionMode.values())
928	>	for (boolean createIncomplete : new boolean[] { true, false })
929	>	for (Integer v1 : new Integer[] { 1, null })
930	>	{
931	>	final AtomicInteger a = new AtomicInteger(0);
932	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
933	>	if (!createIncomplete) assertTrue(f.complete(v1));
934	>	final CompletableFuture<Integer> g = m.whenComplete
935	>	(f,
936	>	(Integer result, Throwable t) -> {
937	>	m.checkExecutionMode();
938	>	threadAssertSame(result, v1);
939	>	threadAssertNull(t);
940	>	a.getAndIncrement();
941	>	});
942	>	if (createIncomplete) assertTrue(f.complete(v1));
943	>
944	>	checkCompletedNormally(g, v1);
945	>	checkCompletedNormally(f, v1);
946	>	assertEquals(1, a.get());
947	>	}}
948	>
949	>	/**
950	>	* whenComplete action executes on exceptional completion, propagating
951	>	* source result.
952	>	*/
953	>	public void testWhenComplete_exceptionalCompletion() {
954	>	for (ExecutionMode m : ExecutionMode.values())
955	>	for (boolean createIncomplete : new boolean[] { true, false })
956	>	{
957	>	final AtomicInteger a = new AtomicInteger(0);
958	>	final CFException ex = new CFException();
959	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
960	>	if (!createIncomplete) f.completeExceptionally(ex);
961	>	final CompletableFuture<Integer> g = m.whenComplete
962	>	(f,
963	>	(Integer result, Throwable t) -> {
964	>	m.checkExecutionMode();
965	>	threadAssertNull(result);
966	>	threadAssertSame(t, ex);
967	>	a.getAndIncrement();
968	>	});
969	>	if (createIncomplete) f.completeExceptionally(ex);
970	>
971	>	checkCompletedWithWrappedException(g, ex);
972	>	checkCompletedExceptionally(f, ex);
973	>	assertEquals(1, a.get());
974	>	}}
975	>
976	>	/**
977	>	* whenComplete action executes on cancelled source, propagating
978	>	* CancellationException.
979	>	*/
980	>	public void testWhenComplete_sourceCancelled() {
981	>	for (ExecutionMode m : ExecutionMode.values())
982	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
983	>	for (boolean createIncomplete : new boolean[] { true, false })
984	>	{
985	>	final AtomicInteger a = new AtomicInteger(0);
986	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
987	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
988	>	final CompletableFuture<Integer> g = m.whenComplete
989	>	(f,
990	>	(Integer result, Throwable t) -> {
991	>	m.checkExecutionMode();
992	>	threadAssertNull(result);
993	>	threadAssertTrue(t instanceof CancellationException);
994	>	a.getAndIncrement();
995	>	});
996	>	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
997
998	<	f = new CompletableFuture<>();
999	<	r = new ExceptionToInteger();
1000	<	g = f.exceptionally(r);
1001	<	f.complete(one);
390	<	checkCompletedNormally(g, one);
391	<	}
998	>	checkCompletedWithWrappedCancellationException(g);
999	>	checkCancelled(f);
1000	>	assertEquals(1, a.get());
1001	>	}}
1002
1003		/**
1004	<	* handle action completes normally with function value on either
1005	<	* normal or exceptional completion of source
1004	>	* If a whenComplete action throws an exception when triggered by
1005	>	* a normal completion, it completes exceptionally
1006		*/
1007	<	public void testHandle() {
1008	<	CompletableFuture<Integer> f, g;
1009	<	IntegerHandler r;
1010	<
1011	<	f = new CompletableFuture<>();
1012	<	f.completeExceptionally(new CFException());
1013	<	g = f.handle(r = new IntegerHandler());
1014	<	assertTrue(r.ran);
1015	<	checkCompletedNormally(g, three);
1007	>	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
1008	>	for (boolean createIncomplete : new boolean[] { true, false })
1009	>	for (ExecutionMode m : ExecutionMode.values())
1010	>	for (Integer v1 : new Integer[] { 1, null })
1011	>	{
1012	>	final AtomicInteger a = new AtomicInteger(0);
1013	>	final CFException ex = new CFException();
1014	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1015	>	if (!createIncomplete) assertTrue(f.complete(v1));
1016	>	final CompletableFuture<Integer> g = m.whenComplete
1017	>	(f,
1018	>	(Integer result, Throwable t) -> {
1019	>	m.checkExecutionMode();
1020	>	threadAssertSame(result, v1);
1021	>	threadAssertNull(t);
1022	>	a.getAndIncrement();
1023	>	throw ex;
1024	>	});
1025	>	if (createIncomplete) assertTrue(f.complete(v1));
1026	>
1027	>	checkCompletedWithWrappedException(g, ex);
1028	>	checkCompletedNormally(f, v1);
1029	>	assertEquals(1, a.get());
1030	>	}}
1031	>
1032	>	/**
1033	>	* If a whenComplete action throws an exception when triggered by
1034	>	* a source completion that also throws an exception, the source
1035	>	* exception takes precedence (unlike handle)
1036	>	*/
1037	>	public void testWhenComplete_sourceFailedActionFailed() {
1038	>	for (boolean createIncomplete : new boolean[] { true, false })
1039	>	for (ExecutionMode m : ExecutionMode.values())
1040	>	{
1041	>	final AtomicInteger a = new AtomicInteger(0);
1042	>	final CFException ex1 = new CFException();
1043	>	final CFException ex2 = new CFException();
1044	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1045	>
1046	>	if (!createIncomplete) f.completeExceptionally(ex1);
1047	>	final CompletableFuture<Integer> g = m.whenComplete
1048	>	(f,
1049	>	(Integer result, Throwable t) -> {
1050	>	m.checkExecutionMode();
1051	>	threadAssertSame(t, ex1);
1052	>	threadAssertNull(result);
1053	>	a.getAndIncrement();
1054	>	throw ex2;
1055	>	});
1056	>	if (createIncomplete) f.completeExceptionally(ex1);
1057	>
1058	>	checkCompletedWithWrappedException(g, ex1);
1059	>	checkCompletedExceptionally(f, ex1);
1060	>	if (testImplementationDetails) {
1061	>	assertEquals(1, ex1.getSuppressed().length);
1062	>	assertSame(ex2, ex1.getSuppressed()[0]);
1063	>	}
1064	>	assertEquals(1, a.get());
1065	>	}}
1066
1067	<	f = new CompletableFuture<>();
1068	<	g = f.handle(r = new IntegerHandler());
1069	<	assertFalse(r.ran);
1070	<	f.completeExceptionally(new CFException());
1071	<	checkCompletedNormally(g, three);
1072	<	assertTrue(r.ran);
1067	>	/**
1068	>	* handle action completes normally with function value on normal
1069	>	* completion of source
1070	>	*/
1071	>	public void testHandle_normalCompletion() {
1072	>	for (ExecutionMode m : ExecutionMode.values())
1073	>	for (boolean createIncomplete : new boolean[] { true, false })
1074	>	for (Integer v1 : new Integer[] { 1, null })
1075	>	{
1076	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1077	>	final AtomicInteger a = new AtomicInteger(0);
1078	>	if (!createIncomplete) assertTrue(f.complete(v1));
1079	>	final CompletableFuture<Integer> g = m.handle
1080	>	(f,
1081	>	(Integer result, Throwable t) -> {
1082	>	m.checkExecutionMode();
1083	>	threadAssertSame(result, v1);
1084	>	threadAssertNull(t);
1085	>	a.getAndIncrement();
1086	>	return inc(v1);
1087	>	});
1088	>	if (createIncomplete) assertTrue(f.complete(v1));
1089	>
1090	>	checkCompletedNormally(g, inc(v1));
1091	>	checkCompletedNormally(f, v1);
1092	>	assertEquals(1, a.get());
1093	>	}}
1094
1095	<	f = new CompletableFuture<>();
1096	<	f.complete(one);
1097	<	g = f.handle(r = new IntegerHandler());
1098	<	assertTrue(r.ran);
1099	<	checkCompletedNormally(g, two);
1095	>	/**
1096	>	* handle action completes normally with function value on
1097	>	* exceptional completion of source
1098	>	*/
1099	>	public void testHandle_exceptionalCompletion() {
1100	>	for (ExecutionMode m : ExecutionMode.values())
1101	>	for (boolean createIncomplete : new boolean[] { true, false })
1102	>	for (Integer v1 : new Integer[] { 1, null })
1103	>	{
1104	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1105	>	final AtomicInteger a = new AtomicInteger(0);
1106	>	final CFException ex = new CFException();
1107	>	if (!createIncomplete) f.completeExceptionally(ex);
1108	>	final CompletableFuture<Integer> g = m.handle
1109	>	(f,
1110	>	(Integer result, Throwable t) -> {
1111	>	m.checkExecutionMode();
1112	>	threadAssertNull(result);
1113	>	threadAssertSame(t, ex);
1114	>	a.getAndIncrement();
1115	>	return v1;
1116	>	});
1117	>	if (createIncomplete) f.completeExceptionally(ex);
1118	>
1119	>	checkCompletedNormally(g, v1);
1120	>	checkCompletedExceptionally(f, ex);
1121	>	assertEquals(1, a.get());
1122	>	}}
1123	>
1124	>	/**
1125	>	* handle action completes normally with function value on
1126	>	* cancelled source
1127	>	*/
1128	>	public void testHandle_sourceCancelled() {
1129	>	for (ExecutionMode m : ExecutionMode.values())
1130	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1131	>	for (boolean createIncomplete : new boolean[] { true, false })
1132	>	for (Integer v1 : new Integer[] { 1, null })
1133	>	{
1134	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1135	>	final AtomicInteger a = new AtomicInteger(0);
1136	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1137	>	final CompletableFuture<Integer> g = m.handle
1138	>	(f,
1139	>	(Integer result, Throwable t) -> {
1140	>	m.checkExecutionMode();
1141	>	threadAssertNull(result);
1142	>	threadAssertTrue(t instanceof CancellationException);
1143	>	a.getAndIncrement();
1144	>	return v1;
1145	>	});
1146	>	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1147
1148	<	f = new CompletableFuture<>();
1149	<	g = f.handle(r = new IntegerHandler());
1150	<	assertFalse(r.ran);
1151	<	f.complete(one);
424	<	assertTrue(r.ran);
425	<	checkCompletedNormally(g, two);
426	<	}
1148	>	checkCompletedNormally(g, v1);
1149	>	checkCancelled(f);
1150	>	assertEquals(1, a.get());
1151	>	}}
1152
1153		/**
1154	<	* runAsync completes after running Runnable
1154	>	* If a "handle action" throws an exception when triggered by
1155	>	* a normal completion, it completes exceptionally
1156		*/
1157	<	public void testRunAsync() {
1158	<	Noop r = new Noop();
1159	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r);
1160	<	assertNull(f.join());
1161	<	assertTrue(r.ran);
1162	<	checkCompletedNormally(f, null);
1163	<	}
1157	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1158	>	for (ExecutionMode m : ExecutionMode.values())
1159	>	for (boolean createIncomplete : new boolean[] { true, false })
1160	>	for (Integer v1 : new Integer[] { 1, null })
1161	>	{
1162	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1163	>	final AtomicInteger a = new AtomicInteger(0);
1164	>	final CFException ex = new CFException();
1165	>	if (!createIncomplete) assertTrue(f.complete(v1));
1166	>	final CompletableFuture<Integer> g = m.handle
1167	>	(f,
1168	>	(Integer result, Throwable t) -> {
1169	>	m.checkExecutionMode();
1170	>	threadAssertSame(result, v1);
1171	>	threadAssertNull(t);
1172	>	a.getAndIncrement();
1173	>	throw ex;
1174	>	});
1175	>	if (createIncomplete) assertTrue(f.complete(v1));
1176	>
1177	>	checkCompletedWithWrappedException(g, ex);
1178	>	checkCompletedNormally(f, v1);
1179	>	assertEquals(1, a.get());
1180	>	}}
1181	>
1182	>	/**
1183	>	* If a "handle action" throws an exception when triggered by
1184	>	* a source completion that also throws an exception, the action
1185	>	* exception takes precedence (unlike whenComplete)
1186	>	*/
1187	>	public void testHandle_sourceFailedActionFailed() {
1188	>	for (boolean createIncomplete : new boolean[] { true, false })
1189	>	for (ExecutionMode m : ExecutionMode.values())
1190	>	{
1191	>	final AtomicInteger a = new AtomicInteger(0);
1192	>	final CFException ex1 = new CFException();
1193	>	final CFException ex2 = new CFException();
1194	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1195	>
1196	>	if (!createIncomplete) f.completeExceptionally(ex1);
1197	>	final CompletableFuture<Integer> g = m.handle
1198	>	(f,
1199	>	(Integer result, Throwable t) -> {
1200	>	m.checkExecutionMode();
1201	>	threadAssertNull(result);
1202	>	threadAssertSame(ex1, t);
1203	>	a.getAndIncrement();
1204	>	throw ex2;
1205	>	});
1206	>	if (createIncomplete) f.completeExceptionally(ex1);
1207	>
1208	>	checkCompletedWithWrappedException(g, ex2);
1209	>	checkCompletedExceptionally(f, ex1);
1210	>	assertEquals(1, a.get());
1211	>	}}
1212
1213		/**
1214	<	* runAsync with executor completes after running Runnable
1214	>	* runAsync completes after running Runnable
1215		*/
1216	<	public void testRunAsync2() {
1217	<	Noop r = new Noop();
1218	<	ThreadExecutor exec = new ThreadExecutor();
1219	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r, exec);
1216	>	public void testRunAsync_normalCompletion() {
1217	>	ExecutionMode[] executionModes = {
1218	>	ExecutionMode.ASYNC,
1219	>	ExecutionMode.EXECUTOR,
1220	>	};
1221	>	for (ExecutionMode m : executionModes)
1222	>	{
1223	>	final Noop r = new Noop(m);
1224	>	final CompletableFuture<Void> f = m.runAsync(r);
1225		assertNull(f.join());
447	–	assertTrue(r.ran);
1226		checkCompletedNormally(f, null);
1227	<	assertEquals(1, exec.count.get());
1228	<	}
1227	>	r.assertInvoked();
1228	>	}}
1229
1230		/**
1231		* failing runAsync completes exceptionally after running Runnable
1232		*/
1233	<	public void testRunAsync3() {
1234	<	FailingNoop r = new FailingNoop();
1235	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r);
1236	<	checkCompletedWithWrappedCFException(f);
1237	<	assertTrue(r.ran);
1238	<	}
1233	>	public void testRunAsync_exceptionalCompletion() {
1234	>	ExecutionMode[] executionModes = {
1235	>	ExecutionMode.ASYNC,
1236	>	ExecutionMode.EXECUTOR,
1237	>	};
1238	>	for (ExecutionMode m : executionModes)
1239	>	{
1240	>	final FailingRunnable r = new FailingRunnable(m);
1241	>	final CompletableFuture<Void> f = m.runAsync(r);
1242	>	checkCompletedWithWrappedException(f, r.ex);
1243	>	r.assertInvoked();
1244	>	}}
1245
1246	<	/**
1247	<	* supplyAsync completes with result of supplier
1248	<	*/
1249	<	public void testSupplyAsync() {
1250	<	CompletableFuture<Integer> f;
1251	<	f = CompletableFuture.supplyAsync(supplyOne);
1252	<	assertEquals(f.join(), one);
1253	<	checkCompletedNormally(f, one);
1246	>	public void testRunAsync_rejectingExecutor() {
1247	>	CountingRejectingExecutor e = new CountingRejectingExecutor();
1248	>	try {
1249	>	CompletableFuture.runAsync(() -> {}, e);
1250	>	shouldThrow();
1251	>	} catch (Throwable t) {
1252	>	assertSame(e.ex, t);
1253	>	}
1254	>
1255	>	assertEquals(1, e.count.get());
1256		}
1257
1258		/**
1259	<	* supplyAsync with executor completes with result of supplier
1259	>	* supplyAsync completes with result of supplier
1260		*/
1261	<	public void testSupplyAsync2() {
1262	<	CompletableFuture<Integer> f;
1263	<	f = CompletableFuture.supplyAsync(supplyOne, new ThreadExecutor());
1264	<	assertEquals(f.join(), one);
1265	<	checkCompletedNormally(f, one);
1266	<	}
1261	>	public void testSupplyAsync_normalCompletion() {
1262	>	ExecutionMode[] executionModes = {
1263	>	ExecutionMode.ASYNC,
1264	>	ExecutionMode.EXECUTOR,
1265	>	};
1266	>	for (ExecutionMode m : executionModes)
1267	>	for (Integer v1 : new Integer[] { 1, null })
1268	>	{
1269	>	final IntegerSupplier r = new IntegerSupplier(m, v1);
1270	>	final CompletableFuture<Integer> f = m.supplyAsync(r);
1271	>	assertSame(v1, f.join());
1272	>	checkCompletedNormally(f, v1);
1273	>	r.assertInvoked();
1274	>	}}
1275
1276		/**
1277		* Failing supplyAsync completes exceptionally
1278		*/
1279	<	public void testSupplyAsync3() {
1280	<	FailingSupplier r = new FailingSupplier();
1281	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(r);
1282	<	checkCompletedWithWrappedCFException(f);
1283	<	assertTrue(r.ran);
1279	>	public void testSupplyAsync_exceptionalCompletion() {
1280	>	ExecutionMode[] executionModes = {
1281	>	ExecutionMode.ASYNC,
1282	>	ExecutionMode.EXECUTOR,
1283	>	};
1284	>	for (ExecutionMode m : executionModes)
1285	>	{
1286	>	FailingSupplier r = new FailingSupplier(m);
1287	>	CompletableFuture<Integer> f = m.supplyAsync(r);
1288	>	checkCompletedWithWrappedException(f, r.ex);
1289	>	r.assertInvoked();
1290	>	}}
1291	>
1292	>	public void testSupplyAsync_rejectingExecutor() {
1293	>	CountingRejectingExecutor e = new CountingRejectingExecutor();
1294	>	try {
1295	>	CompletableFuture.supplyAsync(() -> null, e);
1296	>	shouldThrow();
1297	>	} catch (Throwable t) {
1298	>	assertSame(e.ex, t);
1299	>	}
1300	>
1301	>	assertEquals(1, e.count.get());
1302		}
1303
1304		// seq completion methods
#	Line 494 | Line 1306 | public class CompletableFutureTest exten
1306		/**
1307		* thenRun result completes normally after normal completion of source
1308		*/
1309	<	public void testThenRun() {
1310	<	CompletableFuture<Integer> f;
1311	<	CompletableFuture<Void> g;
1312	<	Noop r;
1313	<
1314	<	f = new CompletableFuture<>();
1315	<	g = f.thenRun(r = new Noop());
1316	<	f.complete(null);
1317	<	checkCompletedNormally(g, null);
1318	<	assertTrue(r.ran);
1319	<
1320	<	f = new CompletableFuture<>();
1321	<	f.complete(null);
1322	<	g = f.thenRun(r = new Noop());
1323	<	checkCompletedNormally(g, null);
1324	<	assertTrue(r.ran);
1325	<	}
1309	>	public void testThenRun_normalCompletion() {
1310	>	for (ExecutionMode m : ExecutionMode.values())
1311	>	for (Integer v1 : new Integer[] { 1, null })
1312	>	{
1313	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1314	>	final Noop[] rs = new Noop[6];
1315	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1316	>
1317	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1318	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1319	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1320	>	checkIncomplete(h0);
1321	>	checkIncomplete(h1);
1322	>	checkIncomplete(h2);
1323	>	assertTrue(f.complete(v1));
1324	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1325	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1326	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1327	>
1328	>	checkCompletedNormally(h0, null);
1329	>	checkCompletedNormally(h1, null);
1330	>	checkCompletedNormally(h2, null);
1331	>	checkCompletedNormally(h3, null);
1332	>	checkCompletedNormally(h4, null);
1333	>	checkCompletedNormally(h5, null);
1334	>	checkCompletedNormally(f, v1);
1335	>	for (Noop r : rs) r.assertInvoked();
1336	>	}}
1337
1338		/**
1339		* thenRun result completes exceptionally after exceptional
1340		* completion of source
1341		*/
1342	<	public void testThenRun2() {
1343	<	CompletableFuture<Integer> f;
1344	<	CompletableFuture<Void> g;
1345	<	Noop r;
1346	<
1347	<	f = new CompletableFuture<>();
1348	<	g = f.thenRun(r = new Noop());
1349	<	f.completeExceptionally(new CFException());
1350	<	checkCompletedWithWrappedCFException(g);
1351	<	assertFalse(r.ran);
1352	<
1353	<	f = new CompletableFuture<>();
1354	<	f.completeExceptionally(new CFException());
1355	<	g = f.thenRun(r = new Noop());
1356	<	checkCompletedWithWrappedCFException(g);
1357	<	assertFalse(r.ran);
1358	<	}
1342	>	public void testThenRun_exceptionalCompletion() {
1343	>	for (ExecutionMode m : ExecutionMode.values())
1344	>	{
1345	>	final CFException ex = new CFException();
1346	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1347	>	final Noop[] rs = new Noop[6];
1348	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1349	>
1350	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1351	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1352	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1353	>	checkIncomplete(h0);
1354	>	checkIncomplete(h1);
1355	>	checkIncomplete(h2);
1356	>	assertTrue(f.completeExceptionally(ex));
1357	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1358	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1359	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1360	>
1361	>	checkCompletedWithWrappedException(h0, ex);
1362	>	checkCompletedWithWrappedException(h1, ex);
1363	>	checkCompletedWithWrappedException(h2, ex);
1364	>	checkCompletedWithWrappedException(h3, ex);
1365	>	checkCompletedWithWrappedException(h4, ex);
1366	>	checkCompletedWithWrappedException(h5, ex);
1367	>	checkCompletedExceptionally(f, ex);
1368	>	for (Noop r : rs) r.assertNotInvoked();
1369	>	}}
1370
1371		/**
1372	<	* thenRun result completes exceptionally if action does
1372	>	* thenRun result completes exceptionally if source cancelled
1373		*/
1374	<	public void testThenRun3() {
1375	<	CompletableFuture<Integer> f;
1376	<	CompletableFuture<Void> g;
1377	<	FailingNoop r;
1378	<
1379	<	f = new CompletableFuture<>();
1380	<	g = f.thenRun(r = new FailingNoop());
1381	<	f.complete(null);
1382	<	checkCompletedWithWrappedCFException(g);
1383	<
1384	<	f = new CompletableFuture<>();
1385	<	f.complete(null);
1386	<	g = f.thenRun(r = new FailingNoop());
1387	<	checkCompletedWithWrappedCFException(g);
1388	<	}
1374	>	public void testThenRun_sourceCancelled() {
1375	>	for (ExecutionMode m : ExecutionMode.values())
1376	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1377	>	{
1378	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1379	>	final Noop[] rs = new Noop[6];
1380	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1381	>
1382	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1383	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1384	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1385	>	checkIncomplete(h0);
1386	>	checkIncomplete(h1);
1387	>	checkIncomplete(h2);
1388	>	assertTrue(f.cancel(mayInterruptIfRunning));
1389	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1390	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1391	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1392	>
1393	>	checkCompletedWithWrappedCancellationException(h0);
1394	>	checkCompletedWithWrappedCancellationException(h1);
1395	>	checkCompletedWithWrappedCancellationException(h2);
1396	>	checkCompletedWithWrappedCancellationException(h3);
1397	>	checkCompletedWithWrappedCancellationException(h4);
1398	>	checkCompletedWithWrappedCancellationException(h5);
1399	>	checkCancelled(f);
1400	>	for (Noop r : rs) r.assertNotInvoked();
1401	>	}}
1402
1403		/**
1404	<	* thenRun result completes exceptionally if source cancelled
1404	>	* thenRun result completes exceptionally if action does
1405		*/
1406	<	public void testThenRun4() {
1407	<	CompletableFuture<Integer> f;
1408	<	CompletableFuture<Void> g;
1409	<	Noop r;
1410	<
1411	<	f = new CompletableFuture<>();
1412	<	g = f.thenRun(r = new Noop());
1413	<	assertTrue(f.cancel(true));
1414	<	checkCompletedWithWrappedCancellationException(g);
1415	<
1416	<	f = new CompletableFuture<>();
1417	<	assertTrue(f.cancel(true));
1418	<	g = f.thenRun(r = new Noop());
1419	<	checkCompletedWithWrappedCancellationException(g);
1420	<	}
1406	>	public void testThenRun_actionFailed() {
1407	>	for (ExecutionMode m : ExecutionMode.values())
1408	>	for (Integer v1 : new Integer[] { 1, null })
1409	>	{
1410	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1411	>	final FailingRunnable[] rs = new FailingRunnable[6];
1412	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1413	>
1414	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1415	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1416	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1417	>	assertTrue(f.complete(v1));
1418	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1419	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1420	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1421	>
1422	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1423	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1424	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1425	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1426	>	checkCompletedWithWrappedException(h4, rs[4].ex);
1427	>	checkCompletedWithWrappedException(h5, rs[5].ex);
1428	>	checkCompletedNormally(f, v1);
1429	>	}}
1430
1431		/**
1432		* thenApply result completes normally after normal completion of source
1433		*/
1434	<	public void testThenApply() {
1435	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1436	<	CompletableFuture<Integer> g = f.thenApply(inc);
1437	<	f.complete(one);
1438	<	checkCompletedNormally(g, two);
1439	<	}
1434	>	public void testThenApply_normalCompletion() {
1435	>	for (ExecutionMode m : ExecutionMode.values())
1436	>	for (Integer v1 : new Integer[] { 1, null })
1437	>	{
1438	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1439	>	final IncFunction[] rs = new IncFunction[4];
1440	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1441	>
1442	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1443	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1444	>	checkIncomplete(h0);
1445	>	checkIncomplete(h1);
1446	>	assertTrue(f.complete(v1));
1447	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1448	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1449	>
1450	>	checkCompletedNormally(h0, inc(v1));
1451	>	checkCompletedNormally(h1, inc(v1));
1452	>	checkCompletedNormally(h2, inc(v1));
1453	>	checkCompletedNormally(h3, inc(v1));
1454	>	checkCompletedNormally(f, v1);
1455	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1456	>	}}
1457
1458		/**
1459		* thenApply result completes exceptionally after exceptional
1460		* completion of source
1461		*/
1462	<	public void testThenApply2() {
1463	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1464	<	CompletableFuture<Integer> g = f.thenApply(inc);
1465	<	f.completeExceptionally(new CFException());
1466	<	checkCompletedWithWrappedCFException(g);
1467	<	}
1462	>	public void testThenApply_exceptionalCompletion() {
1463	>	for (ExecutionMode m : ExecutionMode.values())
1464	>	{
1465	>	final CFException ex = new CFException();
1466	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1467	>	final IncFunction[] rs = new IncFunction[4];
1468	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1469	>
1470	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1471	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1472	>	assertTrue(f.completeExceptionally(ex));
1473	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1474	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1475	>
1476	>	checkCompletedWithWrappedException(h0, ex);
1477	>	checkCompletedWithWrappedException(h1, ex);
1478	>	checkCompletedWithWrappedException(h2, ex);
1479	>	checkCompletedWithWrappedException(h3, ex);
1480	>	checkCompletedExceptionally(f, ex);
1481	>	for (IncFunction r : rs) r.assertNotInvoked();
1482	>	}}
1483
1484		/**
1485	<	* thenApply result completes exceptionally if action does
1485	>	* thenApply result completes exceptionally if source cancelled
1486		*/
1487	<	public void testThenApply3() {
1488	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1489	<	CompletableFuture<Integer> g = f.thenApply(new FailingFunction());
1490	<	f.complete(one);
1491	<	checkCompletedWithWrappedCFException(g);
1492	<	}
1487	>	public void testThenApply_sourceCancelled() {
1488	>	for (ExecutionMode m : ExecutionMode.values())
1489	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1490	>	{
1491	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1492	>	final IncFunction[] rs = new IncFunction[4];
1493	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1494	>
1495	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1496	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1497	>	assertTrue(f.cancel(mayInterruptIfRunning));
1498	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1499	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1500	>
1501	>	checkCompletedWithWrappedCancellationException(h0);
1502	>	checkCompletedWithWrappedCancellationException(h1);
1503	>	checkCompletedWithWrappedCancellationException(h2);
1504	>	checkCompletedWithWrappedCancellationException(h3);
1505	>	checkCancelled(f);
1506	>	for (IncFunction r : rs) r.assertNotInvoked();
1507	>	}}
1508
1509		/**
1510	<	* thenApply result completes exceptionally if source cancelled
1510	>	* thenApply result completes exceptionally if action does
1511		*/
1512	<	public void testThenApply4() {
1513	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1514	<	CompletableFuture<Integer> g = f.thenApply(inc);
1515	<	assertTrue(f.cancel(true));
1516	<	checkCompletedWithWrappedCancellationException(g);
1517	<	}
1512	>	public void testThenApply_actionFailed() {
1513	>	for (ExecutionMode m : ExecutionMode.values())
1514	>	for (Integer v1 : new Integer[] { 1, null })
1515	>	{
1516	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1517	>	final FailingFunction[] rs = new FailingFunction[4];
1518	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1519	>
1520	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1521	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1522	>	assertTrue(f.complete(v1));
1523	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1524	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1525	>
1526	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1527	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1528	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1529	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1530	>	checkCompletedNormally(f, v1);
1531	>	}}
1532
1533		/**
1534		* thenAccept result completes normally after normal completion of source
1535		*/
1536	<	public void testThenAccept() {
1537	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1538	<	IncAction r = new IncAction();
1539	<	CompletableFuture<Void> g = f.thenAccept(r);
1540	<	f.complete(one);
1541	<	checkCompletedNormally(g, null);
1542	<	assertEquals(r.value, 2);
1543	<	}
1536	>	public void testThenAccept_normalCompletion() {
1537	>	for (ExecutionMode m : ExecutionMode.values())
1538	>	for (Integer v1 : new Integer[] { 1, null })
1539	>	{
1540	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1541	>	final NoopConsumer[] rs = new NoopConsumer[4];
1542	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1543	>
1544	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1545	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1546	>	checkIncomplete(h0);
1547	>	checkIncomplete(h1);
1548	>	assertTrue(f.complete(v1));
1549	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1550	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1551	>
1552	>	checkCompletedNormally(h0, null);
1553	>	checkCompletedNormally(h1, null);
1554	>	checkCompletedNormally(h2, null);
1555	>	checkCompletedNormally(h3, null);
1556	>	checkCompletedNormally(f, v1);
1557	>	for (NoopConsumer r : rs) r.assertValue(v1);
1558	>	}}
1559
1560		/**
1561		* thenAccept result completes exceptionally after exceptional
1562		* completion of source
1563		*/
1564	<	public void testThenAccept2() {
1565	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1566	<	IncAction r = new IncAction();
1567	<	CompletableFuture<Void> g = f.thenAccept(r);
1568	<	f.completeExceptionally(new CFException());
1569	<	checkCompletedWithWrappedCFException(g);
1570	<	}
1564	>	public void testThenAccept_exceptionalCompletion() {
1565	>	for (ExecutionMode m : ExecutionMode.values())
1566	>	{
1567	>	final CFException ex = new CFException();
1568	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1569	>	final NoopConsumer[] rs = new NoopConsumer[4];
1570	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1571	>
1572	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1573	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1574	>	assertTrue(f.completeExceptionally(ex));
1575	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1576	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1577	>
1578	>	checkCompletedWithWrappedException(h0, ex);
1579	>	checkCompletedWithWrappedException(h1, ex);
1580	>	checkCompletedWithWrappedException(h2, ex);
1581	>	checkCompletedWithWrappedException(h3, ex);
1582	>	checkCompletedExceptionally(f, ex);
1583	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1584	>	}}
1585
1586		/**
1587	<	* thenAccept result completes exceptionally if action does
1587	>	* thenAccept result completes exceptionally if source cancelled
1588		*/
1589	<	public void testThenAccept3() {
1590	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1591	<	FailingConsumer r = new FailingConsumer();
1592	<	CompletableFuture<Void> g = f.thenAccept(r);
1593	<	f.complete(one);
1594	<	checkCompletedWithWrappedCFException(g);
1595	<	assertTrue(r.ran);
1596	<	}
1589	>	public void testThenAccept_sourceCancelled() {
1590	>	for (ExecutionMode m : ExecutionMode.values())
1591	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1592	>	{
1593	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1594	>	final NoopConsumer[] rs = new NoopConsumer[4];
1595	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1596	>
1597	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1598	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1599	>	assertTrue(f.cancel(mayInterruptIfRunning));
1600	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1601	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1602	>
1603	>	checkCompletedWithWrappedCancellationException(h0);
1604	>	checkCompletedWithWrappedCancellationException(h1);
1605	>	checkCompletedWithWrappedCancellationException(h2);
1606	>	checkCompletedWithWrappedCancellationException(h3);
1607	>	checkCancelled(f);
1608	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1609	>	}}
1610
1611		/**
1612	<	* thenAccept result completes exceptionally if source cancelled
1612	>	* thenAccept result completes exceptionally if action does
1613		*/
1614	<	public void testThenAccept4() {
1615	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1616	<	IncAction r = new IncAction();
1617	<	CompletableFuture<Void> g = f.thenAccept(r);
1618	<	assertTrue(f.cancel(true));
1619	<	checkCompletedWithWrappedCancellationException(g);
1620	<	}
1621	<
1614	>	public void testThenAccept_actionFailed() {
1615	>	for (ExecutionMode m : ExecutionMode.values())
1616	>	for (Integer v1 : new Integer[] { 1, null })
1617	>	{
1618	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1619	>	final FailingConsumer[] rs = new FailingConsumer[4];
1620	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1621	>
1622	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1623	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1624	>	assertTrue(f.complete(v1));
1625	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1626	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1627	>
1628	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1629	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1630	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1631	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1632	>	checkCompletedNormally(f, v1);
1633	>	}}
1634
1635		/**
1636		* thenCombine result completes normally after normal completion
1637		* of sources
1638		*/
1639	<	public void testThenCombine() {
1640	<	CompletableFuture<Integer> f, g, h;
1641	<
1642	<	f = new CompletableFuture<>();
1643	<	g = new CompletableFuture<>();
1644	<	h = f.thenCombine(g, subtract);
1645	<	f.complete(3);
1646	<	checkIncomplete(h);
1647	<	g.complete(1);
1648	<	checkCompletedNormally(h, 2);
1649	<
1650	<	f = new CompletableFuture<>();
1651	<	g = new CompletableFuture<>();
1652	<	h = f.thenCombine(g, subtract);
1653	<	g.complete(1);
1654	<	checkIncomplete(h);
1655	<	f.complete(3);
1656	<	checkCompletedNormally(h, 2);
1657	<
1658	<	f = new CompletableFuture<>();
1659	<	g = new CompletableFuture<>();
1660	<	g.complete(1);
1661	<	f.complete(3);
1662	<	h = f.thenCombine(g, subtract);
1663	<	checkCompletedNormally(h, 2);
1664	<	}
1639	>	public void testThenCombine_normalCompletion() {
1640	>	for (ExecutionMode m : ExecutionMode.values())
1641	>	for (boolean fFirst : new boolean[] { true, false })
1642	>	for (Integer v1 : new Integer[] { 1, null })
1643	>	for (Integer v2 : new Integer[] { 2, null })
1644	>	{
1645	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1646	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1647	>	final SubtractFunction[] rs = new SubtractFunction[6];
1648	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1649	>
1650	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1651	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1652	>	final Integer w1 =  fFirst ? v1 : v2;
1653	>	final Integer w2 = !fFirst ? v1 : v2;
1654	>
1655	>	final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1656	>	final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1657	>	assertTrue(fst.complete(w1));
1658	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1659	>	final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1660	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1661	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1662	>	checkCompletedNormally(h1, subtract(w1, w1));
1663	>	checkCompletedNormally(h3, subtract(w1, w1));
1664	>	rs[1].assertValue(subtract(w1, w1));
1665	>	rs[3].assertValue(subtract(w1, w1));
1666	>	assertTrue(snd.complete(w2));
1667	>	final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1668	>
1669	>	checkCompletedNormally(h0, subtract(v1, v2));
1670	>	checkCompletedNormally(h2, subtract(v1, v2));
1671	>	checkCompletedNormally(h4, subtract(v1, v2));
1672	>	rs[0].assertValue(subtract(v1, v2));
1673	>	rs[2].assertValue(subtract(v1, v2));
1674	>	rs[4].assertValue(subtract(v1, v2));
1675	>
1676	>	checkCompletedNormally(f, v1);
1677	>	checkCompletedNormally(g, v2);
1678	>	}}
1679
1680		/**
1681		* thenCombine result completes exceptionally after exceptional
1682		* completion of either source
1683		*/
1684	<	public void testThenCombine2() {
1685	<	CompletableFuture<Integer> f, g, h;
1686	<
1687	<	f = new CompletableFuture<>();
1688	<	g = new CompletableFuture<>();
1689	<	h = f.thenCombine(g, subtract);
1690	<	f.completeExceptionally(new CFException());
1691	<	checkIncomplete(h);
1692	<	g.complete(1);
1693	<	checkCompletedWithWrappedCFException(h);
1694	<
1695	<	f = new CompletableFuture<>();
1696	<	g = new CompletableFuture<>();
1697	<	h = f.thenCombine(g, subtract);
1698	<	g.completeExceptionally(new CFException());
1699	<	checkIncomplete(h);
1700	<	f.complete(3);
1701	<	checkCompletedWithWrappedCFException(h);
1702	<
1703	<	f = new CompletableFuture<>();
1704	<	g = new CompletableFuture<>();
1705	<	f.complete(3);
1706	<	g.completeExceptionally(new CFException());
1707	<	h = f.thenCombine(g, subtract);
1708	<	checkCompletedWithWrappedCFException(h);
1709	<
1710	<	f = new CompletableFuture<>();
1711	<	g = new CompletableFuture<>();
1712	<	f.completeExceptionally(new CFException());
1713	<	g.complete(3);
1714	<	h = f.thenCombine(g, subtract);
1715	<	checkCompletedWithWrappedCFException(h);
1716	<	}
1684	>	public void testThenCombine_exceptionalCompletion() throws Throwable {
1685	>	for (ExecutionMode m : ExecutionMode.values())
1686	>	for (boolean fFirst : new boolean[] { true, false })
1687	>	for (boolean failFirst : new boolean[] { true, false })
1688	>	for (Integer v1 : new Integer[] { 1, null })
1689	>	{
1690	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1691	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1692	>	final CFException ex = new CFException();
1693	>	final SubtractFunction r1 = new SubtractFunction(m);
1694	>	final SubtractFunction r2 = new SubtractFunction(m);
1695	>	final SubtractFunction r3 = new SubtractFunction(m);
1696	>
1697	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1698	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1699	>	final Callable<Boolean> complete1 = failFirst ?
1700	>	() -> fst.completeExceptionally(ex) :
1701	>	() -> fst.complete(v1);
1702	>	final Callable<Boolean> complete2 = failFirst ?
1703	>	() -> snd.complete(v1) :
1704	>	() -> snd.completeExceptionally(ex);
1705	>
1706	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1707	>	assertTrue(complete1.call());
1708	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1709	>	checkIncomplete(h1);
1710	>	checkIncomplete(h2);
1711	>	assertTrue(complete2.call());
1712	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1713	>
1714	>	checkCompletedWithWrappedException(h1, ex);
1715	>	checkCompletedWithWrappedException(h2, ex);
1716	>	checkCompletedWithWrappedException(h3, ex);
1717	>	r1.assertNotInvoked();
1718	>	r2.assertNotInvoked();
1719	>	r3.assertNotInvoked();
1720	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1721	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1722	>	}}
1723
1724		/**
1725	<	* thenCombine result completes exceptionally if action does
1725	>	* thenCombine result completes exceptionally if either source cancelled
1726		*/
1727	<	public void testThenCombine3() {
1728	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1729	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1730	<	FailingBiFunction r = new FailingBiFunction();
1731	<	CompletableFuture<Integer> g = f.thenCombine(f2, r);
1732	<	f.complete(one);
1733	<	checkIncomplete(g);
1734	<	assertFalse(r.ran);
1735	<	f2.complete(two);
1736	<	checkCompletedWithWrappedCFException(g);
1737	<	assertTrue(r.ran);
1738	<	}
1727	>	public void testThenCombine_sourceCancelled() throws Throwable {
1728	>	for (ExecutionMode m : ExecutionMode.values())
1729	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1730	>	for (boolean fFirst : new boolean[] { true, false })
1731	>	for (boolean failFirst : new boolean[] { true, false })
1732	>	for (Integer v1 : new Integer[] { 1, null })
1733	>	{
1734	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1735	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1736	>	final SubtractFunction r1 = new SubtractFunction(m);
1737	>	final SubtractFunction r2 = new SubtractFunction(m);
1738	>	final SubtractFunction r3 = new SubtractFunction(m);
1739	>
1740	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1741	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1742	>	final Callable<Boolean> complete1 = failFirst ?
1743	>	() -> fst.cancel(mayInterruptIfRunning) :
1744	>	() -> fst.complete(v1);
1745	>	final Callable<Boolean> complete2 = failFirst ?
1746	>	() -> snd.complete(v1) :
1747	>	() -> snd.cancel(mayInterruptIfRunning);
1748	>
1749	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1750	>	assertTrue(complete1.call());
1751	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1752	>	checkIncomplete(h1);
1753	>	checkIncomplete(h2);
1754	>	assertTrue(complete2.call());
1755	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1756	>
1757	>	checkCompletedWithWrappedCancellationException(h1);
1758	>	checkCompletedWithWrappedCancellationException(h2);
1759	>	checkCompletedWithWrappedCancellationException(h3);
1760	>	r1.assertNotInvoked();
1761	>	r2.assertNotInvoked();
1762	>	r3.assertNotInvoked();
1763	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1764	>	checkCancelled(failFirst ? fst : snd);
1765	>	}}
1766
1767		/**
1768	<	* thenCombine result completes exceptionally if either source cancelled
1768	>	* thenCombine result completes exceptionally if action does
1769		*/
1770	<	public void testThenCombine4() {
1771	<	CompletableFuture<Integer> f, g, h;
1772	<
1773	<	f = new CompletableFuture<>();
1774	<	g = new CompletableFuture<>();
1775	<	h = f.thenCombine(g, subtract);
1776	<	assertTrue(f.cancel(true));
1777	<	checkIncomplete(h);
1778	<	g.complete(1);
1779	<	checkCompletedWithWrappedCancellationException(h);
1780	<
1781	<	f = new CompletableFuture<>();
1782	<	g = new CompletableFuture<>();
1783	<	h = f.thenCombine(g, subtract);
1784	<	assertTrue(g.cancel(true));
1785	<	checkIncomplete(h);
1786	<	f.complete(3);
1787	<	checkCompletedWithWrappedCancellationException(h);
1788	<
1789	<	f = new CompletableFuture<>();
1790	<	g = new CompletableFuture<>();
1791	<	assertTrue(f.cancel(true));
1792	<	assertTrue(g.cancel(true));
1793	<	h = f.thenCombine(g, subtract);
1794	<	checkCompletedWithWrappedCancellationException(h);
1795	<	}
1770	>	public void testThenCombine_actionFailed() {
1771	>	for (ExecutionMode m : ExecutionMode.values())
1772	>	for (boolean fFirst : new boolean[] { true, false })
1773	>	for (Integer v1 : new Integer[] { 1, null })
1774	>	for (Integer v2 : new Integer[] { 2, null })
1775	>	{
1776	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1777	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1778	>	final FailingBiFunction r1 = new FailingBiFunction(m);
1779	>	final FailingBiFunction r2 = new FailingBiFunction(m);
1780	>	final FailingBiFunction r3 = new FailingBiFunction(m);
1781	>
1782	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1783	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1784	>	final Integer w1 =  fFirst ? v1 : v2;
1785	>	final Integer w2 = !fFirst ? v1 : v2;
1786	>
1787	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1788	>	assertTrue(fst.complete(w1));
1789	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1790	>	assertTrue(snd.complete(w2));
1791	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1792	>
1793	>	checkCompletedWithWrappedException(h1, r1.ex);
1794	>	checkCompletedWithWrappedException(h2, r2.ex);
1795	>	checkCompletedWithWrappedException(h3, r3.ex);
1796	>	r1.assertInvoked();
1797	>	r2.assertInvoked();
1798	>	r3.assertInvoked();
1799	>	checkCompletedNormally(f, v1);
1800	>	checkCompletedNormally(g, v2);
1801	>	}}
1802
1803		/**
1804		* thenAcceptBoth result completes normally after normal
1805		* completion of sources
1806		*/
1807	<	public void testThenAcceptBoth() {
1808	<	CompletableFuture<Integer> f, g;
1809	<	CompletableFuture<Void> h;
1810	<	SubtractAction r;
1811	<
1812	<	f = new CompletableFuture<>();
1813	<	g = new CompletableFuture<>();
1814	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1815	<	f.complete(3);
1816	<	checkIncomplete(h);
1817	<	g.complete(1);
1818	<	checkCompletedNormally(h, null);
1819	<	assertEquals(r.value, 2);
1820	<
1821	<	f = new CompletableFuture<>();
1822	<	g = new CompletableFuture<>();
1823	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1824	<	g.complete(1);
1825	<	checkIncomplete(h);
1826	<	f.complete(3);
1827	<	checkCompletedNormally(h, null);
1828	<	assertEquals(r.value, 2);
1829	<
1830	<	f = new CompletableFuture<>();
1831	<	g = new CompletableFuture<>();
1832	<	g.complete(1);
1833	<	f.complete(3);
1834	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1835	<	checkCompletedNormally(h, null);
1836	<	assertEquals(r.value, 2);
1837	<	}
1807	>	public void testThenAcceptBoth_normalCompletion() {
1808	>	for (ExecutionMode m : ExecutionMode.values())
1809	>	for (boolean fFirst : new boolean[] { true, false })
1810	>	for (Integer v1 : new Integer[] { 1, null })
1811	>	for (Integer v2 : new Integer[] { 2, null })
1812	>	{
1813	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1814	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1815	>	final SubtractAction r1 = new SubtractAction(m);
1816	>	final SubtractAction r2 = new SubtractAction(m);
1817	>	final SubtractAction r3 = new SubtractAction(m);
1818	>
1819	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1820	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1821	>	final Integer w1 =  fFirst ? v1 : v2;
1822	>	final Integer w2 = !fFirst ? v1 : v2;
1823	>
1824	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1825	>	assertTrue(fst.complete(w1));
1826	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1827	>	checkIncomplete(h1);
1828	>	checkIncomplete(h2);
1829	>	r1.assertNotInvoked();
1830	>	r2.assertNotInvoked();
1831	>	assertTrue(snd.complete(w2));
1832	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1833	>
1834	>	checkCompletedNormally(h1, null);
1835	>	checkCompletedNormally(h2, null);
1836	>	checkCompletedNormally(h3, null);
1837	>	r1.assertValue(subtract(v1, v2));
1838	>	r2.assertValue(subtract(v1, v2));
1839	>	r3.assertValue(subtract(v1, v2));
1840	>	checkCompletedNormally(f, v1);
1841	>	checkCompletedNormally(g, v2);
1842	>	}}
1843
1844		/**
1845		* thenAcceptBoth result completes exceptionally after exceptional
1846		* completion of either source
1847		*/
1848	<	public void testThenAcceptBoth2() {
1849	<	CompletableFuture<Integer> f, g;
1850	<	CompletableFuture<Void> h;
1851	<	SubtractAction r;
1852	<
1853	<	f = new CompletableFuture<>();
1854	<	g = new CompletableFuture<>();
1855	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1856	<	f.completeExceptionally(new CFException());
1857	<	checkIncomplete(h);
1858	<	g.complete(1);
1859	<	checkCompletedWithWrappedCFException(h);
1860	<
1861	<	f = new CompletableFuture<>();
1862	<	g = new CompletableFuture<>();
1863	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1864	<	g.completeExceptionally(new CFException());
1865	<	checkIncomplete(h);
1866	<	f.complete(3);
1867	<	checkCompletedWithWrappedCFException(h);
1868	<
1869	<	f = new CompletableFuture<>();
1870	<	g = new CompletableFuture<>();
1871	<	f.complete(3);
1872	<	g.completeExceptionally(new CFException());
1873	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1874	<	checkCompletedWithWrappedCFException(h);
1875	<
1876	<	f = new CompletableFuture<>();
1877	<	g = new CompletableFuture<>();
1878	<	f.completeExceptionally(new CFException());
1879	<	g.complete(3);
1880	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1881	<	checkCompletedWithWrappedCFException(h);
1882	<	}
1848	>	public void testThenAcceptBoth_exceptionalCompletion() throws Throwable {
1849	>	for (ExecutionMode m : ExecutionMode.values())
1850	>	for (boolean fFirst : new boolean[] { true, false })
1851	>	for (boolean failFirst : new boolean[] { true, false })
1852	>	for (Integer v1 : new Integer[] { 1, null })
1853	>	{
1854	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1855	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1856	>	final CFException ex = new CFException();
1857	>	final SubtractAction r1 = new SubtractAction(m);
1858	>	final SubtractAction r2 = new SubtractAction(m);
1859	>	final SubtractAction r3 = new SubtractAction(m);
1860	>
1861	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1862	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1863	>	final Callable<Boolean> complete1 = failFirst ?
1864	>	() -> fst.completeExceptionally(ex) :
1865	>	() -> fst.complete(v1);
1866	>	final Callable<Boolean> complete2 = failFirst ?
1867	>	() -> snd.complete(v1) :
1868	>	() -> snd.completeExceptionally(ex);
1869	>
1870	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1871	>	assertTrue(complete1.call());
1872	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1873	>	checkIncomplete(h1);
1874	>	checkIncomplete(h2);
1875	>	assertTrue(complete2.call());
1876	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1877	>
1878	>	checkCompletedWithWrappedException(h1, ex);
1879	>	checkCompletedWithWrappedException(h2, ex);
1880	>	checkCompletedWithWrappedException(h3, ex);
1881	>	r1.assertNotInvoked();
1882	>	r2.assertNotInvoked();
1883	>	r3.assertNotInvoked();
1884	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1885	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1886	>	}}
1887
1888		/**
1889	<	* thenAcceptBoth result completes exceptionally if action does
1889	>	* thenAcceptBoth result completes exceptionally if either source cancelled
1890		*/
1891	<	public void testThenAcceptBoth3() {
1892	<	CompletableFuture<Integer> f, g;
1893	<	CompletableFuture<Void> h;
1894	<	FailingBiConsumer r;
1895	<
1896	<	f = new CompletableFuture<>();
1897	<	g = new CompletableFuture<>();
1898	<	h = f.thenAcceptBoth(g, r = new FailingBiConsumer());
1899	<	f.complete(3);
1900	<	checkIncomplete(h);
1901	<	g.complete(1);
1902	<	checkCompletedWithWrappedCFException(h);
1903	<
1904	<	f = new CompletableFuture<>();
1905	<	g = new CompletableFuture<>();
1906	<	f.complete(3);
1907	<	g.complete(1);
1908	<	h = f.thenAcceptBoth(g, r = new FailingBiConsumer());
1909	<	checkCompletedWithWrappedCFException(h);
1910	<	}
1891	>	public void testThenAcceptBoth_sourceCancelled() throws Throwable {
1892	>	for (ExecutionMode m : ExecutionMode.values())
1893	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1894	>	for (boolean fFirst : new boolean[] { true, false })
1895	>	for (boolean failFirst : new boolean[] { true, false })
1896	>	for (Integer v1 : new Integer[] { 1, null })
1897	>	{
1898	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1899	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1900	>	final SubtractAction r1 = new SubtractAction(m);
1901	>	final SubtractAction r2 = new SubtractAction(m);
1902	>	final SubtractAction r3 = new SubtractAction(m);
1903	>
1904	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1905	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1906	>	final Callable<Boolean> complete1 = failFirst ?
1907	>	() -> fst.cancel(mayInterruptIfRunning) :
1908	>	() -> fst.complete(v1);
1909	>	final Callable<Boolean> complete2 = failFirst ?
1910	>	() -> snd.complete(v1) :
1911	>	() -> snd.cancel(mayInterruptIfRunning);
1912	>
1913	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1914	>	assertTrue(complete1.call());
1915	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1916	>	checkIncomplete(h1);
1917	>	checkIncomplete(h2);
1918	>	assertTrue(complete2.call());
1919	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1920	>
1921	>	checkCompletedWithWrappedCancellationException(h1);
1922	>	checkCompletedWithWrappedCancellationException(h2);
1923	>	checkCompletedWithWrappedCancellationException(h3);
1924	>	r1.assertNotInvoked();
1925	>	r2.assertNotInvoked();
1926	>	r3.assertNotInvoked();
1927	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1928	>	checkCancelled(failFirst ? fst : snd);
1929	>	}}
1930
1931		/**
1932	<	* thenAcceptBoth result completes exceptionally if either source cancelled
1932	>	* thenAcceptBoth result completes exceptionally if action does
1933		*/
1934	<	public void testThenAcceptBoth4() {
1935	<	CompletableFuture<Integer> f, g;
1936	<	CompletableFuture<Void> h;
1937	<	SubtractAction r;
1938	<
1939	<	f = new CompletableFuture<>();
1940	<	g = new CompletableFuture<>();
1941	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1942	<	assertTrue(f.cancel(true));
1943	<	checkIncomplete(h);
1944	<	g.complete(1);
1945	<	checkCompletedWithWrappedCancellationException(h);
1946	<
1947	<	f = new CompletableFuture<>();
1948	<	g = new CompletableFuture<>();
1949	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1950	<	assertTrue(g.cancel(true));
1951	<	checkIncomplete(h);
1952	<	f.complete(3);
1953	<	checkCompletedWithWrappedCancellationException(h);
1954	<
1955	<	f = new CompletableFuture<>();
1956	<	g = new CompletableFuture<>();
1957	<	f.complete(3);
1958	<	assertTrue(g.cancel(true));
1959	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
1960	<	checkCompletedWithWrappedCancellationException(h);
1961	<
1962	<	f = new CompletableFuture<>();
1963	<	g = new CompletableFuture<>();
1964	<	assertTrue(f.cancel(true));
1965	<	g.complete(3);
914	<	h = f.thenAcceptBoth(g, r = new SubtractAction());
915	<	checkCompletedWithWrappedCancellationException(h);
916	<	}
1934	>	public void testThenAcceptBoth_actionFailed() {
1935	>	for (ExecutionMode m : ExecutionMode.values())
1936	>	for (boolean fFirst : new boolean[] { true, false })
1937	>	for (Integer v1 : new Integer[] { 1, null })
1938	>	for (Integer v2 : new Integer[] { 2, null })
1939	>	{
1940	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1941	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1942	>	final FailingBiConsumer r1 = new FailingBiConsumer(m);
1943	>	final FailingBiConsumer r2 = new FailingBiConsumer(m);
1944	>	final FailingBiConsumer r3 = new FailingBiConsumer(m);
1945	>
1946	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1947	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1948	>	final Integer w1 =  fFirst ? v1 : v2;
1949	>	final Integer w2 = !fFirst ? v1 : v2;
1950	>
1951	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1952	>	assertTrue(fst.complete(w1));
1953	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1954	>	assertTrue(snd.complete(w2));
1955	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1956	>
1957	>	checkCompletedWithWrappedException(h1, r1.ex);
1958	>	checkCompletedWithWrappedException(h2, r2.ex);
1959	>	checkCompletedWithWrappedException(h3, r3.ex);
1960	>	r1.assertInvoked();
1961	>	r2.assertInvoked();
1962	>	r3.assertInvoked();
1963	>	checkCompletedNormally(f, v1);
1964	>	checkCompletedNormally(g, v2);
1965	>	}}
1966
1967		/**
1968		* runAfterBoth result completes normally after normal
1969		* completion of sources
1970		*/
1971	<	public void testRunAfterBoth() {
1972	<	CompletableFuture<Integer> f, g;
1973	<	CompletableFuture<Void> h;
1974	<	Noop r;
1975	<
1976	<	f = new CompletableFuture<>();
1977	<	g = new CompletableFuture<>();
1978	<	h = f.runAfterBoth(g, r = new Noop());
1979	<	f.complete(3);
1980	<	checkIncomplete(h);
1981	<	g.complete(1);
1982	<	checkCompletedNormally(h, null);
1983	<	assertTrue(r.ran);
1984	<
1985	<	f = new CompletableFuture<>();
1986	<	g = new CompletableFuture<>();
1987	<	h = f.runAfterBoth(g, r = new Noop());
1988	<	g.complete(1);
1989	<	checkIncomplete(h);
1990	<	f.complete(3);
1991	<	checkCompletedNormally(h, null);
1992	<	assertTrue(r.ran);
1993	<
1994	<	f = new CompletableFuture<>();
1995	<	g = new CompletableFuture<>();
1996	<	g.complete(1);
1997	<	f.complete(3);
1998	<	h = f.runAfterBoth(g, r = new Noop());
1999	<	checkCompletedNormally(h, null);
2000	<	assertTrue(r.ran);
2001	<	}
1971	>	public void testRunAfterBoth_normalCompletion() {
1972	>	for (ExecutionMode m : ExecutionMode.values())
1973	>	for (boolean fFirst : new boolean[] { true, false })
1974	>	for (Integer v1 : new Integer[] { 1, null })
1975	>	for (Integer v2 : new Integer[] { 2, null })
1976	>	{
1977	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1978	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1979	>	final Noop r1 = new Noop(m);
1980	>	final Noop r2 = new Noop(m);
1981	>	final Noop r3 = new Noop(m);
1982	>
1983	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1984	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1985	>	final Integer w1 =  fFirst ? v1 : v2;
1986	>	final Integer w2 = !fFirst ? v1 : v2;
1987	>
1988	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1989	>	assertTrue(fst.complete(w1));
1990	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1991	>	checkIncomplete(h1);
1992	>	checkIncomplete(h2);
1993	>	r1.assertNotInvoked();
1994	>	r2.assertNotInvoked();
1995	>	assertTrue(snd.complete(w2));
1996	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
1997	>
1998	>	checkCompletedNormally(h1, null);
1999	>	checkCompletedNormally(h2, null);
2000	>	checkCompletedNormally(h3, null);
2001	>	r1.assertInvoked();
2002	>	r2.assertInvoked();
2003	>	r3.assertInvoked();
2004	>	checkCompletedNormally(f, v1);
2005	>	checkCompletedNormally(g, v2);
2006	>	}}
2007
2008		/**
2009		* runAfterBoth result completes exceptionally after exceptional
2010		* completion of either source
2011		*/
2012	<	public void testRunAfterBoth2() {
2013	<	CompletableFuture<Integer> f, g;
2014	<	CompletableFuture<Void> h;
2015	<	Noop r;
2016	<
2017	<	f = new CompletableFuture<>();
2018	<	g = new CompletableFuture<>();
2019	<	h = f.runAfterBoth(g, r = new Noop());
2020	<	f.completeExceptionally(new CFException());
2021	<	checkIncomplete(h);
2022	<	g.complete(1);
2023	<	checkCompletedWithWrappedCFException(h);
2024	<	assertFalse(r.ran);
2025	<
2026	<	f = new CompletableFuture<>();
2027	<	g = new CompletableFuture<>();
2028	<	h = f.runAfterBoth(g, r = new Noop());
2029	<	g.completeExceptionally(new CFException());
2030	<	checkIncomplete(h);
2031	<	f.complete(3);
2032	<	checkCompletedWithWrappedCFException(h);
2033	<	assertFalse(r.ran);
2034	<
2035	<	f = new CompletableFuture<>();
2036	<	g = new CompletableFuture<>();
2037	<	g.completeExceptionally(new CFException());
2038	<	f.complete(3);
2039	<	h = f.runAfterBoth(g, r = new Noop());
2040	<	checkCompletedWithWrappedCFException(h);
2041	<	assertFalse(r.ran);
2042	<
2043	<	f = new CompletableFuture<>();
2044	<	g = new CompletableFuture<>();
2045	<	f.completeExceptionally(new CFException());
2046	<	g.complete(1);
2047	<	h = f.runAfterBoth(g, r = new Noop());
2048	<	checkCompletedWithWrappedCFException(h);
2049	<	assertFalse(r.ran);
2050	<	}
2012	>	public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
2013	>	for (ExecutionMode m : ExecutionMode.values())
2014	>	for (boolean fFirst : new boolean[] { true, false })
2015	>	for (boolean failFirst : new boolean[] { true, false })
2016	>	for (Integer v1 : new Integer[] { 1, null })
2017	>	{
2018	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2019	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2020	>	final CFException ex = new CFException();
2021	>	final Noop r1 = new Noop(m);
2022	>	final Noop r2 = new Noop(m);
2023	>	final Noop r3 = new Noop(m);
2024	>
2025	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2026	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2027	>	final Callable<Boolean> complete1 = failFirst ?
2028	>	() -> fst.completeExceptionally(ex) :
2029	>	() -> fst.complete(v1);
2030	>	final Callable<Boolean> complete2 = failFirst ?
2031	>	() -> snd.complete(v1) :
2032	>	() -> snd.completeExceptionally(ex);
2033	>
2034	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2035	>	assertTrue(complete1.call());
2036	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2037	>	checkIncomplete(h1);
2038	>	checkIncomplete(h2);
2039	>	assertTrue(complete2.call());
2040	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2041	>
2042	>	checkCompletedWithWrappedException(h1, ex);
2043	>	checkCompletedWithWrappedException(h2, ex);
2044	>	checkCompletedWithWrappedException(h3, ex);
2045	>	r1.assertNotInvoked();
2046	>	r2.assertNotInvoked();
2047	>	r3.assertNotInvoked();
2048	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2049	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
2050	>	}}
2051
2052		/**
2053	<	* runAfterBoth result completes exceptionally if action does
2053	>	* runAfterBoth result completes exceptionally if either source cancelled
2054		*/
2055	<	public void testRunAfterBoth3() {
2056	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2057	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2058	<	FailingNoop r = new FailingNoop();
2059	<	CompletableFuture<Void> g = f.runAfterBoth(f2, r);
2060	<	f.complete(one);
2061	<	checkIncomplete(g);
2062	<	f2.complete(two);
2063	<	checkCompletedWithWrappedCFException(g);
2064	<	}
2055	>	public void testRunAfterBoth_sourceCancelled() throws Throwable {
2056	>	for (ExecutionMode m : ExecutionMode.values())
2057	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2058	>	for (boolean fFirst : new boolean[] { true, false })
2059	>	for (boolean failFirst : new boolean[] { true, false })
2060	>	for (Integer v1 : new Integer[] { 1, null })
2061	>	{
2062	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2063	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2064	>	final Noop r1 = new Noop(m);
2065	>	final Noop r2 = new Noop(m);
2066	>	final Noop r3 = new Noop(m);
2067	>
2068	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2069	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2070	>	final Callable<Boolean> complete1 = failFirst ?
2071	>	() -> fst.cancel(mayInterruptIfRunning) :
2072	>	() -> fst.complete(v1);
2073	>	final Callable<Boolean> complete2 = failFirst ?
2074	>	() -> snd.complete(v1) :
2075	>	() -> snd.cancel(mayInterruptIfRunning);
2076	>
2077	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2078	>	assertTrue(complete1.call());
2079	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2080	>	checkIncomplete(h1);
2081	>	checkIncomplete(h2);
2082	>	assertTrue(complete2.call());
2083	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2084	>
2085	>	checkCompletedWithWrappedCancellationException(h1);
2086	>	checkCompletedWithWrappedCancellationException(h2);
2087	>	checkCompletedWithWrappedCancellationException(h3);
2088	>	r1.assertNotInvoked();
2089	>	r2.assertNotInvoked();
2090	>	r3.assertNotInvoked();
2091	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2092	>	checkCancelled(failFirst ? fst : snd);
2093	>	}}
2094
2095		/**
2096	<	* runAfterBoth result completes exceptionally if either source cancelled
2096	>	* runAfterBoth result completes exceptionally if action does
2097		*/
2098	<	public void testRunAfterBoth4() {
2099	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2100	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2101	<	Noop r = new Noop();
2102	<	CompletableFuture<Void> g = f.runAfterBoth(f2, r);
2103	<	assertTrue(f.cancel(true));
2104	<	f2.complete(two);
2105	<	checkCompletedWithWrappedCancellationException(g);
2106	<	f = new CompletableFuture<>();
2107	<	f2 = new CompletableFuture<>();
2108	<	r = new Noop();
2109	<	g = f.runAfterBoth(f2, r);
2110	<	f.complete(one);
2111	<	assertTrue(f2.cancel(true));
2112	<	checkCompletedWithWrappedCancellationException(g);
2113	<	}
2098	>	public void testRunAfterBoth_actionFailed() {
2099	>	for (ExecutionMode m : ExecutionMode.values())
2100	>	for (boolean fFirst : new boolean[] { true, false })
2101	>	for (Integer v1 : new Integer[] { 1, null })
2102	>	for (Integer v2 : new Integer[] { 2, null })
2103	>	{
2104	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2105	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2106	>	final FailingRunnable r1 = new FailingRunnable(m);
2107	>	final FailingRunnable r2 = new FailingRunnable(m);
2108	>	final FailingRunnable r3 = new FailingRunnable(m);
2109	>
2110	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2111	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2112	>	final Integer w1 =  fFirst ? v1 : v2;
2113	>	final Integer w2 = !fFirst ? v1 : v2;
2114	>
2115	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2116	>	assertTrue(fst.complete(w1));
2117	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2118	>	assertTrue(snd.complete(w2));
2119	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2120	>
2121	>	checkCompletedWithWrappedException(h1, r1.ex);
2122	>	checkCompletedWithWrappedException(h2, r2.ex);
2123	>	checkCompletedWithWrappedException(h3, r3.ex);
2124	>	r1.assertInvoked();
2125	>	r2.assertInvoked();
2126	>	r3.assertInvoked();
2127	>	checkCompletedNormally(f, v1);
2128	>	checkCompletedNormally(g, v2);
2129	>	}}
2130
2131		/**
2132		* applyToEither result completes normally after normal completion
2133		* of either source
2134		*/
2135	<	public void testApplyToEither() {
2136	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2137	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2138	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
2139	<	f.complete(one);
2140	<	checkCompletedNormally(g, two);
2141	<	f2.complete(one);
2142	<	checkCompletedNormally(g, two);
2143	<
2144	<	f = new CompletableFuture<>();
2145	<	f.complete(one);
2146	<	f2 = new CompletableFuture<>();
2147	<	g = f.applyToEither(f2, inc);
2148	<	checkCompletedNormally(g, two);
2149	<	}
2135	>	public void testApplyToEither_normalCompletion() {
2136	>	for (ExecutionMode m : ExecutionMode.values())
2137	>	for (Integer v1 : new Integer[] { 1, null })
2138	>	for (Integer v2 : new Integer[] { 2, null })
2139	>	{
2140	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2141	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2142	>	final IncFunction[] rs = new IncFunction[6];
2143	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2144	>
2145	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2146	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2147	>	checkIncomplete(h0);
2148	>	checkIncomplete(h1);
2149	>	rs[0].assertNotInvoked();
2150	>	rs[1].assertNotInvoked();
2151	>	f.complete(v1);
2152	>	checkCompletedNormally(h0, inc(v1));
2153	>	checkCompletedNormally(h1, inc(v1));
2154	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2155	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2156	>	checkCompletedNormally(h2, inc(v1));
2157	>	checkCompletedNormally(h3, inc(v1));
2158	>	g.complete(v2);
2159	>
2160	>	// unspecified behavior - both source completions available
2161	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2162	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2163	>	rs[4].assertValue(h4.join());
2164	>	rs[5].assertValue(h5.join());
2165	>	assertTrue(Objects.equals(inc(v1), h4.join()) ||
2166	>	Objects.equals(inc(v2), h4.join()));
2167	>	assertTrue(Objects.equals(inc(v1), h5.join()) ||
2168	>	Objects.equals(inc(v2), h5.join()));
2169	>
2170	>	checkCompletedNormally(f, v1);
2171	>	checkCompletedNormally(g, v2);
2172	>	checkCompletedNormally(h0, inc(v1));
2173	>	checkCompletedNormally(h1, inc(v1));
2174	>	checkCompletedNormally(h2, inc(v1));
2175	>	checkCompletedNormally(h3, inc(v1));
2176	>	for (int i = 0; i < 4; i++) rs[i].assertValue(inc(v1));
2177	>	}}
2178
2179		/**
2180		* applyToEither result completes exceptionally after exceptional
2181		* completion of either source
2182		*/
2183	<	public void testApplyToEither2() {
2184	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2185	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2186	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
2187	<	f.completeExceptionally(new CFException());
2188	<	f2.complete(one);
2189	<	checkCompletedWithWrappedCFException(g);
2183	>	public void testApplyToEither_exceptionalCompletion() {
2184	>	for (ExecutionMode m : ExecutionMode.values())
2185	>	for (Integer v1 : new Integer[] { 1, null })
2186	>	{
2187	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2188	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2189	>	final CFException ex = new CFException();
2190	>	final IncFunction[] rs = new IncFunction[6];
2191	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2192	>
2193	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2194	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2195	>	checkIncomplete(h0);
2196	>	checkIncomplete(h1);
2197	>	rs[0].assertNotInvoked();
2198	>	rs[1].assertNotInvoked();
2199	>	f.completeExceptionally(ex);
2200	>	checkCompletedWithWrappedException(h0, ex);
2201	>	checkCompletedWithWrappedException(h1, ex);
2202	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2203	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2204	>	checkCompletedWithWrappedException(h2, ex);
2205	>	checkCompletedWithWrappedException(h3, ex);
2206	>	g.complete(v1);
2207	>
2208	>	// unspecified behavior - both source completions available
2209	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2210	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2211	>	try {
2212	>	assertEquals(inc(v1), h4.join());
2213	>	rs[4].assertValue(inc(v1));
2214	>	} catch (CompletionException ok) {
2215	>	checkCompletedWithWrappedException(h4, ex);
2216	>	rs[4].assertNotInvoked();
2217	>	}
2218	>	try {
2219	>	assertEquals(inc(v1), h5.join());
2220	>	rs[5].assertValue(inc(v1));
2221	>	} catch (CompletionException ok) {
2222	>	checkCompletedWithWrappedException(h5, ex);
2223	>	rs[5].assertNotInvoked();
2224	>	}
2225
2226	<	f = new CompletableFuture<>();
2227	<	f2 = new CompletableFuture<>();
2228	<	f2.completeExceptionally(new CFException());
2229	<	g = f.applyToEither(f2, inc);
2230	<	checkCompletedWithWrappedCFException(g);
2231	<	}
2226	>	checkCompletedExceptionally(f, ex);
2227	>	checkCompletedNormally(g, v1);
2228	>	checkCompletedWithWrappedException(h0, ex);
2229	>	checkCompletedWithWrappedException(h1, ex);
2230	>	checkCompletedWithWrappedException(h2, ex);
2231	>	checkCompletedWithWrappedException(h3, ex);
2232	>	checkCompletedWithWrappedException(h4, ex);
2233	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2234	>	}}
2235	>
2236	>	public void testApplyToEither_exceptionalCompletion2() {
2237	>	for (ExecutionMode m : ExecutionMode.values())
2238	>	for (boolean fFirst : new boolean[] { true, false })
2239	>	for (Integer v1 : new Integer[] { 1, null })
2240	>	{
2241	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2242	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2243	>	final CFException ex = new CFException();
2244	>	final IncFunction[] rs = new IncFunction[6];
2245	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2246	>
2247	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2248	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2249	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2250	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2251	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2252	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2253	>
2254	>	// unspecified behavior - both source completions available
2255	>	try {
2256	>	assertEquals(inc(v1), h0.join());
2257	>	rs[0].assertValue(inc(v1));
2258	>	} catch (CompletionException ok) {
2259	>	checkCompletedWithWrappedException(h0, ex);
2260	>	rs[0].assertNotInvoked();
2261	>	}
2262	>	try {
2263	>	assertEquals(inc(v1), h1.join());
2264	>	rs[1].assertValue(inc(v1));
2265	>	} catch (CompletionException ok) {
2266	>	checkCompletedWithWrappedException(h1, ex);
2267	>	rs[1].assertNotInvoked();
2268	>	}
2269	>	try {
2270	>	assertEquals(inc(v1), h2.join());
2271	>	rs[2].assertValue(inc(v1));
2272	>	} catch (CompletionException ok) {
2273	>	checkCompletedWithWrappedException(h2, ex);
2274	>	rs[2].assertNotInvoked();
2275	>	}
2276	>	try {
2277	>	assertEquals(inc(v1), h3.join());
2278	>	rs[3].assertValue(inc(v1));
2279	>	} catch (CompletionException ok) {
2280	>	checkCompletedWithWrappedException(h3, ex);
2281	>	rs[3].assertNotInvoked();
2282	>	}
2283	>
2284	>	checkCompletedNormally(f, v1);
2285	>	checkCompletedExceptionally(g, ex);
2286	>	}}
2287
2288		/**
2289	<	* applyToEither result completes exceptionally if action does
2289	>	* applyToEither result completes exceptionally if either source cancelled
2290		*/
2291	<	public void testApplyToEither3() {
2292	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2293	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2294	<	FailingFunction r = new FailingFunction();
2295	<	CompletableFuture<Integer> g = f.applyToEither(f2, r);
2296	<	f2.complete(two);
2297	<	checkCompletedWithWrappedCFException(g);
2298	<	}
2291	>	public void testApplyToEither_sourceCancelled() {
2292	>	for (ExecutionMode m : ExecutionMode.values())
2293	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2294	>	for (Integer v1 : new Integer[] { 1, null })
2295	>	{
2296	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2297	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2298	>	final IncFunction[] rs = new IncFunction[6];
2299	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2300	>
2301	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2302	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2303	>	checkIncomplete(h0);
2304	>	checkIncomplete(h1);
2305	>	rs[0].assertNotInvoked();
2306	>	rs[1].assertNotInvoked();
2307	>	f.cancel(mayInterruptIfRunning);
2308	>	checkCompletedWithWrappedCancellationException(h0);
2309	>	checkCompletedWithWrappedCancellationException(h1);
2310	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2311	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2312	>	checkCompletedWithWrappedCancellationException(h2);
2313	>	checkCompletedWithWrappedCancellationException(h3);
2314	>	g.complete(v1);
2315	>
2316	>	// unspecified behavior - both source completions available
2317	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2318	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2319	>	try {
2320	>	assertEquals(inc(v1), h4.join());
2321	>	rs[4].assertValue(inc(v1));
2322	>	} catch (CompletionException ok) {
2323	>	checkCompletedWithWrappedCancellationException(h4);
2324	>	rs[4].assertNotInvoked();
2325	>	}
2326	>	try {
2327	>	assertEquals(inc(v1), h5.join());
2328	>	rs[5].assertValue(inc(v1));
2329	>	} catch (CompletionException ok) {
2330	>	checkCompletedWithWrappedCancellationException(h5);
2331	>	rs[5].assertNotInvoked();
2332	>	}
2333	>
2334	>	checkCancelled(f);
2335	>	checkCompletedNormally(g, v1);
2336	>	checkCompletedWithWrappedCancellationException(h0);
2337	>	checkCompletedWithWrappedCancellationException(h1);
2338	>	checkCompletedWithWrappedCancellationException(h2);
2339	>	checkCompletedWithWrappedCancellationException(h3);
2340	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2341	>	}}
2342	>
2343	>	public void testApplyToEither_sourceCancelled2() {
2344	>	for (ExecutionMode m : ExecutionMode.values())
2345	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2346	>	for (boolean fFirst : new boolean[] { true, false })
2347	>	for (Integer v1 : new Integer[] { 1, null })
2348	>	{
2349	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2350	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2351	>	final IncFunction[] rs = new IncFunction[6];
2352	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2353	>
2354	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2355	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2356	>	assertTrue(fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2357	>	assertTrue(!fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2358	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2359	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2360	>
2361	>	// unspecified behavior - both source completions available
2362	>	try {
2363	>	assertEquals(inc(v1), h0.join());
2364	>	rs[0].assertValue(inc(v1));
2365	>	} catch (CompletionException ok) {
2366	>	checkCompletedWithWrappedCancellationException(h0);
2367	>	rs[0].assertNotInvoked();
2368	>	}
2369	>	try {
2370	>	assertEquals(inc(v1), h1.join());
2371	>	rs[1].assertValue(inc(v1));
2372	>	} catch (CompletionException ok) {
2373	>	checkCompletedWithWrappedCancellationException(h1);
2374	>	rs[1].assertNotInvoked();
2375	>	}
2376	>	try {
2377	>	assertEquals(inc(v1), h2.join());
2378	>	rs[2].assertValue(inc(v1));
2379	>	} catch (CompletionException ok) {
2380	>	checkCompletedWithWrappedCancellationException(h2);
2381	>	rs[2].assertNotInvoked();
2382	>	}
2383	>	try {
2384	>	assertEquals(inc(v1), h3.join());
2385	>	rs[3].assertValue(inc(v1));
2386	>	} catch (CompletionException ok) {
2387	>	checkCompletedWithWrappedCancellationException(h3);
2388	>	rs[3].assertNotInvoked();
2389	>	}
2390	>
2391	>	checkCompletedNormally(f, v1);
2392	>	checkCancelled(g);
2393	>	}}
2394
2395		/**
2396	<	* applyToEither result completes exceptionally if either source cancelled
2396	>	* applyToEither result completes exceptionally if action does
2397		*/
2398	<	public void testApplyToEither4() {
2399	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2400	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2401	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
2402	<	assertTrue(f.cancel(true));
2403	<	checkCompletedWithWrappedCancellationException(g);
2404	<	f = new CompletableFuture<>();
2405	<	f2 = new CompletableFuture<>();
2406	<	assertTrue(f2.cancel(true));
2407	<	checkCompletedWithWrappedCancellationException(g);
2408	<	}
2398	>	public void testApplyToEither_actionFailed() {
2399	>	for (ExecutionMode m : ExecutionMode.values())
2400	>	for (Integer v1 : new Integer[] { 1, null })
2401	>	for (Integer v2 : new Integer[] { 2, null })
2402	>	{
2403	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2404	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2405	>	final FailingFunction[] rs = new FailingFunction[6];
2406	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
2407	>
2408	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2409	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2410	>	f.complete(v1);
2411	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2412	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2413	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2414	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2415	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2416	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2417	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2418	>
2419	>	g.complete(v2);
2420	>
2421	>	// unspecified behavior - both source completions available
2422	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2423	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2424	>
2425	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2426	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2427	>	Objects.equals(v2, rs[4].value));
2428	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2429	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2430	>	Objects.equals(v2, rs[5].value));
2431	>
2432	>	checkCompletedNormally(f, v1);
2433	>	checkCompletedNormally(g, v2);
2434	>	}}
2435
2436		/**
2437		* acceptEither result completes normally after normal completion
2438		* of either source
2439		*/
2440	<	public void testAcceptEither() {
2441	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2442	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2443	<	IncAction r = new IncAction();
2444	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2445	<	f.complete(one);
2446	<	checkCompletedNormally(g, null);
2447	<	f2.complete(one);
2448	<	checkCompletedNormally(g, null);
2449	<	assertEquals(r.value, 2);
2450	<
2451	<	r = new IncAction();
2452	<	f = new CompletableFuture<>();
2453	<	f.complete(one);
2454	<	f2 = new CompletableFuture<>();
2455	<	g = f.acceptEither(f2, r);
2456	<	checkCompletedNormally(g, null);
2457	<	assertEquals(r.value, 2);
2458	<	}
2440	>	public void testAcceptEither_normalCompletion() {
2441	>	for (ExecutionMode m : ExecutionMode.values())
2442	>	for (Integer v1 : new Integer[] { 1, null })
2443	>	for (Integer v2 : new Integer[] { 2, null })
2444	>	{
2445	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2446	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2447	>	final NoopConsumer[] rs = new NoopConsumer[6];
2448	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2449	>
2450	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2451	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2452	>	checkIncomplete(h0);
2453	>	checkIncomplete(h1);
2454	>	rs[0].assertNotInvoked();
2455	>	rs[1].assertNotInvoked();
2456	>	f.complete(v1);
2457	>	checkCompletedNormally(h0, null);
2458	>	checkCompletedNormally(h1, null);
2459	>	rs[0].assertValue(v1);
2460	>	rs[1].assertValue(v1);
2461	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2462	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2463	>	checkCompletedNormally(h2, null);
2464	>	checkCompletedNormally(h3, null);
2465	>	rs[2].assertValue(v1);
2466	>	rs[3].assertValue(v1);
2467	>	g.complete(v2);
2468	>
2469	>	// unspecified behavior - both source completions available
2470	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2471	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2472	>	checkCompletedNormally(h4, null);
2473	>	checkCompletedNormally(h5, null);
2474	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2475	>	Objects.equals(v2, rs[4].value));
2476	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2477	>	Objects.equals(v2, rs[5].value));
2478	>
2479	>	checkCompletedNormally(f, v1);
2480	>	checkCompletedNormally(g, v2);
2481	>	checkCompletedNormally(h0, null);
2482	>	checkCompletedNormally(h1, null);
2483	>	checkCompletedNormally(h2, null);
2484	>	checkCompletedNormally(h3, null);
2485	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2486	>	}}
2487
2488		/**
2489		* acceptEither result completes exceptionally after exceptional
2490		* completion of either source
2491		*/
2492	<	public void testAcceptEither2() {
2493	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2494	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2495	<	IncAction r = new IncAction();
2496	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2497	<	f.completeExceptionally(new CFException());
2498	<	f2.complete(one);
2499	<	checkCompletedWithWrappedCFException(g);
2492	>	public void testAcceptEither_exceptionalCompletion() {
2493	>	for (ExecutionMode m : ExecutionMode.values())
2494	>	for (Integer v1 : new Integer[] { 1, null })
2495	>	{
2496	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2497	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2498	>	final CFException ex = new CFException();
2499	>	final NoopConsumer[] rs = new NoopConsumer[6];
2500	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2501	>
2502	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2503	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2504	>	checkIncomplete(h0);
2505	>	checkIncomplete(h1);
2506	>	rs[0].assertNotInvoked();
2507	>	rs[1].assertNotInvoked();
2508	>	f.completeExceptionally(ex);
2509	>	checkCompletedWithWrappedException(h0, ex);
2510	>	checkCompletedWithWrappedException(h1, ex);
2511	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2512	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2513	>	checkCompletedWithWrappedException(h2, ex);
2514	>	checkCompletedWithWrappedException(h3, ex);
2515	>
2516	>	g.complete(v1);
2517	>
2518	>	// unspecified behavior - both source completions available
2519	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2520	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2521	>	try {
2522	>	assertNull(h4.join());
2523	>	rs[4].assertValue(v1);
2524	>	} catch (CompletionException ok) {
2525	>	checkCompletedWithWrappedException(h4, ex);
2526	>	rs[4].assertNotInvoked();
2527	>	}
2528	>	try {
2529	>	assertNull(h5.join());
2530	>	rs[5].assertValue(v1);
2531	>	} catch (CompletionException ok) {
2532	>	checkCompletedWithWrappedException(h5, ex);
2533	>	rs[5].assertNotInvoked();
2534	>	}
2535
2536	<	r = new IncAction();
2537	<	f = new CompletableFuture<>();
2538	<	f2 = new CompletableFuture<>();
2539	<	f2.completeExceptionally(new CFException());
2540	<	g = f.acceptEither(f2, r);
2541	<	checkCompletedWithWrappedCFException(g);
2542	<	}
2536	>	checkCompletedExceptionally(f, ex);
2537	>	checkCompletedNormally(g, v1);
2538	>	checkCompletedWithWrappedException(h0, ex);
2539	>	checkCompletedWithWrappedException(h1, ex);
2540	>	checkCompletedWithWrappedException(h2, ex);
2541	>	checkCompletedWithWrappedException(h3, ex);
2542	>	checkCompletedWithWrappedException(h4, ex);
2543	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2544	>	}}
2545	>
2546	>	public void testAcceptEither_exceptionalCompletion2() {
2547	>	for (ExecutionMode m : ExecutionMode.values())
2548	>	for (boolean fFirst : new boolean[] { true, false })
2549	>	for (Integer v1 : new Integer[] { 1, null })
2550	>	{
2551	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2552	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2553	>	final CFException ex = new CFException();
2554	>	final NoopConsumer[] rs = new NoopConsumer[6];
2555	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2556	>
2557	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2558	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2559	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2560	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2561	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2562	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2563
2564	<	/**
2565	<	* acceptEither result completes exceptionally if action does
2566	<	*/
2567	<	public void testAcceptEither3() {
2568	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2569	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2570	<	FailingConsumer r = new FailingConsumer();
2571	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2572	<	f2.complete(two);
2573	<	checkCompletedWithWrappedCFException(g);
2574	<	}
2564	>	// unspecified behavior - both source completions available
2565	>	try {
2566	>	assertEquals(null, h0.join());
2567	>	rs[0].assertValue(v1);
2568	>	} catch (CompletionException ok) {
2569	>	checkCompletedWithWrappedException(h0, ex);
2570	>	rs[0].assertNotInvoked();
2571	>	}
2572	>	try {
2573	>	assertEquals(null, h1.join());
2574	>	rs[1].assertValue(v1);
2575	>	} catch (CompletionException ok) {
2576	>	checkCompletedWithWrappedException(h1, ex);
2577	>	rs[1].assertNotInvoked();
2578	>	}
2579	>	try {
2580	>	assertEquals(null, h2.join());
2581	>	rs[2].assertValue(v1);
2582	>	} catch (CompletionException ok) {
2583	>	checkCompletedWithWrappedException(h2, ex);
2584	>	rs[2].assertNotInvoked();
2585	>	}
2586	>	try {
2587	>	assertEquals(null, h3.join());
2588	>	rs[3].assertValue(v1);
2589	>	} catch (CompletionException ok) {
2590	>	checkCompletedWithWrappedException(h3, ex);
2591	>	rs[3].assertNotInvoked();
2592	>	}
2593	>
2594	>	checkCompletedNormally(f, v1);
2595	>	checkCompletedExceptionally(g, ex);
2596	>	}}
2597
2598		/**
2599		* acceptEither result completes exceptionally if either source cancelled
2600		*/
2601	<	public void testAcceptEither4() {
2602	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2603	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2604	<	IncAction r = new IncAction();
2605	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2606	<	assertTrue(f.cancel(true));
2607	<	checkCompletedWithWrappedCancellationException(g);
2608	<	f = new CompletableFuture<>();
2609	<	f2 = new CompletableFuture<>();
2610	<	assertTrue(f2.cancel(true));
2611	<	checkCompletedWithWrappedCancellationException(g);
2612	<	}
2601	>	public void testAcceptEither_sourceCancelled() {
2602	>	for (ExecutionMode m : ExecutionMode.values())
2603	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2604	>	for (Integer v1 : new Integer[] { 1, null })
2605	>	{
2606	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2607	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2608	>	final NoopConsumer[] rs = new NoopConsumer[6];
2609	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2610	>
2611	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2612	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2613	>	checkIncomplete(h0);
2614	>	checkIncomplete(h1);
2615	>	rs[0].assertNotInvoked();
2616	>	rs[1].assertNotInvoked();
2617	>	f.cancel(mayInterruptIfRunning);
2618	>	checkCompletedWithWrappedCancellationException(h0);
2619	>	checkCompletedWithWrappedCancellationException(h1);
2620	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2621	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2622	>	checkCompletedWithWrappedCancellationException(h2);
2623	>	checkCompletedWithWrappedCancellationException(h3);
2624	>
2625	>	g.complete(v1);
2626	>
2627	>	// unspecified behavior - both source completions available
2628	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2629	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2630	>	try {
2631	>	assertNull(h4.join());
2632	>	rs[4].assertValue(v1);
2633	>	} catch (CompletionException ok) {
2634	>	checkCompletedWithWrappedCancellationException(h4);
2635	>	rs[4].assertNotInvoked();
2636	>	}
2637	>	try {
2638	>	assertNull(h5.join());
2639	>	rs[5].assertValue(v1);
2640	>	} catch (CompletionException ok) {
2641	>	checkCompletedWithWrappedCancellationException(h5);
2642	>	rs[5].assertNotInvoked();
2643	>	}
2644
2645	+	checkCancelled(f);
2646	+	checkCompletedNormally(g, v1);
2647	+	checkCompletedWithWrappedCancellationException(h0);
2648	+	checkCompletedWithWrappedCancellationException(h1);
2649	+	checkCompletedWithWrappedCancellationException(h2);
2650	+	checkCompletedWithWrappedCancellationException(h3);
2651	+	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2652	+	}}
2653	+
2654	+	/**
2655	+	* acceptEither result completes exceptionally if action does
2656	+	*/
2657	+	public void testAcceptEither_actionFailed() {
2658	+	for (ExecutionMode m : ExecutionMode.values())
2659	+	for (Integer v1 : new Integer[] { 1, null })
2660	+	for (Integer v2 : new Integer[] { 2, null })
2661	+	{
2662	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
2663	+	final CompletableFuture<Integer> g = new CompletableFuture<>();
2664	+	final FailingConsumer[] rs = new FailingConsumer[6];
2665	+	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
2666	+
2667	+	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2668	+	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2669	+	f.complete(v1);
2670	+	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2671	+	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2672	+	checkCompletedWithWrappedException(h0, rs[0].ex);
2673	+	checkCompletedWithWrappedException(h1, rs[1].ex);
2674	+	checkCompletedWithWrappedException(h2, rs[2].ex);
2675	+	checkCompletedWithWrappedException(h3, rs[3].ex);
2676	+	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2677	+
2678	+	g.complete(v2);
2679	+
2680	+	// unspecified behavior - both source completions available
2681	+	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2682	+	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2683	+
2684	+	checkCompletedWithWrappedException(h4, rs[4].ex);
2685	+	assertTrue(Objects.equals(v1, rs[4].value) ||
2686	+	Objects.equals(v2, rs[4].value));
2687	+	checkCompletedWithWrappedException(h5, rs[5].ex);
2688	+	assertTrue(Objects.equals(v1, rs[5].value) ||
2689	+	Objects.equals(v2, rs[5].value));
2690	+
2691	+	checkCompletedNormally(f, v1);
2692	+	checkCompletedNormally(g, v2);
2693	+	}}
2694
2695		/**
2696		* runAfterEither result completes normally after normal completion
2697		* of either source
2698		*/
2699	<	public void testRunAfterEither() {
2700	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2701	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2702	<	Noop r = new Noop();
2703	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2704	<	f.complete(one);
2705	<	checkCompletedNormally(g, null);
2706	<	f2.complete(one);
2707	<	checkCompletedNormally(g, null);
2708	<	assertTrue(r.ran);
2709	<
2710	<	r = new Noop();
2711	<	f = new CompletableFuture<>();
2712	<	f.complete(one);
2713	<	f2 = new CompletableFuture<>();
2714	<	g = f.runAfterEither(f2, r);
2715	<	checkCompletedNormally(g, null);
2716	<	assertTrue(r.ran);
2717	<	}
2699	>	public void testRunAfterEither_normalCompletion() {
2700	>	for (ExecutionMode m : ExecutionMode.values())
2701	>	for (Integer v1 : new Integer[] { 1, null })
2702	>	for (Integer v2 : new Integer[] { 2, null })
2703	>	for (boolean pushNop : new boolean[] { true, false })
2704	>	{
2705	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2706	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2707	>	final Noop[] rs = new Noop[6];
2708	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2709	>
2710	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2711	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2712	>	checkIncomplete(h0);
2713	>	checkIncomplete(h1);
2714	>	rs[0].assertNotInvoked();
2715	>	rs[1].assertNotInvoked();
2716	>	if (pushNop) {          // ad hoc test of intra-completion interference
2717	>	m.thenRun(f, () -> {});
2718	>	m.thenRun(g, () -> {});
2719	>	}
2720	>	f.complete(v1);
2721	>	checkCompletedNormally(h0, null);
2722	>	checkCompletedNormally(h1, null);
2723	>	rs[0].assertInvoked();
2724	>	rs[1].assertInvoked();
2725	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2726	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2727	>	checkCompletedNormally(h2, null);
2728	>	checkCompletedNormally(h3, null);
2729	>	rs[2].assertInvoked();
2730	>	rs[3].assertInvoked();
2731	>
2732	>	g.complete(v2);
2733	>
2734	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2735	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2736	>
2737	>	checkCompletedNormally(f, v1);
2738	>	checkCompletedNormally(g, v2);
2739	>	checkCompletedNormally(h0, null);
2740	>	checkCompletedNormally(h1, null);
2741	>	checkCompletedNormally(h2, null);
2742	>	checkCompletedNormally(h3, null);
2743	>	checkCompletedNormally(h4, null);
2744	>	checkCompletedNormally(h5, null);
2745	>	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2746	>	}}
2747
2748		/**
2749		* runAfterEither result completes exceptionally after exceptional
2750		* completion of either source
2751		*/
2752	<	public void testRunAfterEither2() {
2753	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2754	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2755	<	Noop r = new Noop();
2756	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2757	<	f.completeExceptionally(new CFException());
2758	<	f2.complete(one);
2759	<	checkCompletedWithWrappedCFException(g);
2752	>	public void testRunAfterEither_exceptionalCompletion() {
2753	>	for (ExecutionMode m : ExecutionMode.values())
2754	>	for (Integer v1 : new Integer[] { 1, null })
2755	>	{
2756	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2757	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2758	>	final CFException ex = new CFException();
2759	>	final Noop[] rs = new Noop[6];
2760	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2761	>
2762	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2763	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2764	>	checkIncomplete(h0);
2765	>	checkIncomplete(h1);
2766	>	rs[0].assertNotInvoked();
2767	>	rs[1].assertNotInvoked();
2768	>	assertTrue(f.completeExceptionally(ex));
2769	>	checkCompletedWithWrappedException(h0, ex);
2770	>	checkCompletedWithWrappedException(h1, ex);
2771	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2772	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2773	>	checkCompletedWithWrappedException(h2, ex);
2774	>	checkCompletedWithWrappedException(h3, ex);
2775	>
2776	>	assertTrue(g.complete(v1));
2777	>
2778	>	// unspecified behavior - both source completions available
2779	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2780	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2781	>	try {
2782	>	assertNull(h4.join());
2783	>	rs[4].assertInvoked();
2784	>	} catch (CompletionException ok) {
2785	>	checkCompletedWithWrappedException(h4, ex);
2786	>	rs[4].assertNotInvoked();
2787	>	}
2788	>	try {
2789	>	assertNull(h5.join());
2790	>	rs[5].assertInvoked();
2791	>	} catch (CompletionException ok) {
2792	>	checkCompletedWithWrappedException(h5, ex);
2793	>	rs[5].assertNotInvoked();
2794	>	}
2795
2796	<	r = new Noop();
2797	<	f = new CompletableFuture<>();
2798	<	f2 = new CompletableFuture<>();
2799	<	f2.completeExceptionally(new CFException());
2800	<	g = f.runAfterEither(f2, r);
2801	<	checkCompletedWithWrappedCFException(g);
2802	<	}
2796	>	checkCompletedExceptionally(f, ex);
2797	>	checkCompletedNormally(g, v1);
2798	>	checkCompletedWithWrappedException(h0, ex);
2799	>	checkCompletedWithWrappedException(h1, ex);
2800	>	checkCompletedWithWrappedException(h2, ex);
2801	>	checkCompletedWithWrappedException(h3, ex);
2802	>	checkCompletedWithWrappedException(h4, ex);
2803	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2804	>	}}
2805	>
2806	>	public void testRunAfterEither_exceptionalCompletion2() {
2807	>	for (ExecutionMode m : ExecutionMode.values())
2808	>	for (boolean fFirst : new boolean[] { true, false })
2809	>	for (Integer v1 : new Integer[] { 1, null })
2810	>	{
2811	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2812	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2813	>	final CFException ex = new CFException();
2814	>	final Noop[] rs = new Noop[6];
2815	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2816	>
2817	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2818	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2819	>	assertTrue( fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2820	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2821	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2822	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2823	>
2824	>	// unspecified behavior - both source completions available
2825	>	try {
2826	>	assertEquals(null, h0.join());
2827	>	rs[0].assertInvoked();
2828	>	} catch (CompletionException ok) {
2829	>	checkCompletedWithWrappedException(h0, ex);
2830	>	rs[0].assertNotInvoked();
2831	>	}
2832	>	try {
2833	>	assertEquals(null, h1.join());
2834	>	rs[1].assertInvoked();
2835	>	} catch (CompletionException ok) {
2836	>	checkCompletedWithWrappedException(h1, ex);
2837	>	rs[1].assertNotInvoked();
2838	>	}
2839	>	try {
2840	>	assertEquals(null, h2.join());
2841	>	rs[2].assertInvoked();
2842	>	} catch (CompletionException ok) {
2843	>	checkCompletedWithWrappedException(h2, ex);
2844	>	rs[2].assertNotInvoked();
2845	>	}
2846	>	try {
2847	>	assertEquals(null, h3.join());
2848	>	rs[3].assertInvoked();
2849	>	} catch (CompletionException ok) {
2850	>	checkCompletedWithWrappedException(h3, ex);
2851	>	rs[3].assertNotInvoked();
2852	>	}
2853	>
2854	>	checkCompletedNormally(f, v1);
2855	>	checkCompletedExceptionally(g, ex);
2856	>	}}
2857
2858		/**
2859	<	* runAfterEither result completes exceptionally if action does
2859	>	* runAfterEither result completes exceptionally if either source cancelled
2860		*/
2861	<	public void testRunAfterEither3() {
2862	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2863	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2864	<	FailingNoop r = new FailingNoop();
2865	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2866	<	f2.complete(two);
2867	<	checkCompletedWithWrappedCFException(g);
2868	<	}
2861	>	public void testRunAfterEither_sourceCancelled() {
2862	>	for (ExecutionMode m : ExecutionMode.values())
2863	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2864	>	for (Integer v1 : new Integer[] { 1, null })
2865	>	{
2866	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2867	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2868	>	final Noop[] rs = new Noop[6];
2869	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2870	>
2871	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2872	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2873	>	checkIncomplete(h0);
2874	>	checkIncomplete(h1);
2875	>	rs[0].assertNotInvoked();
2876	>	rs[1].assertNotInvoked();
2877	>	f.cancel(mayInterruptIfRunning);
2878	>	checkCompletedWithWrappedCancellationException(h0);
2879	>	checkCompletedWithWrappedCancellationException(h1);
2880	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2881	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2882	>	checkCompletedWithWrappedCancellationException(h2);
2883	>	checkCompletedWithWrappedCancellationException(h3);
2884	>
2885	>	assertTrue(g.complete(v1));
2886	>
2887	>	// unspecified behavior - both source completions available
2888	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2889	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2890	>	try {
2891	>	assertNull(h4.join());
2892	>	rs[4].assertInvoked();
2893	>	} catch (CompletionException ok) {
2894	>	checkCompletedWithWrappedCancellationException(h4);
2895	>	rs[4].assertNotInvoked();
2896	>	}
2897	>	try {
2898	>	assertNull(h5.join());
2899	>	rs[5].assertInvoked();
2900	>	} catch (CompletionException ok) {
2901	>	checkCompletedWithWrappedCancellationException(h5);
2902	>	rs[5].assertNotInvoked();
2903	>	}
2904	>
2905	>	checkCancelled(f);
2906	>	checkCompletedNormally(g, v1);
2907	>	checkCompletedWithWrappedCancellationException(h0);
2908	>	checkCompletedWithWrappedCancellationException(h1);
2909	>	checkCompletedWithWrappedCancellationException(h2);
2910	>	checkCompletedWithWrappedCancellationException(h3);
2911	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2912	>	}}
2913
2914		/**
2915	<	* runAfterEither result completes exceptionally if either source cancelled
2915	>	* runAfterEither result completes exceptionally if action does
2916		*/
2917	<	public void testRunAfterEither4() {
2918	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2919	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2920	<	Noop r = new Noop();
2921	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2922	<	assertTrue(f.cancel(true));
2923	<	checkCompletedWithWrappedCancellationException(g);
2924	<	f = new CompletableFuture<>();
2925	<	f2 = new CompletableFuture<>();
2926	<	assertTrue(f2.cancel(true));
2927	<	checkCompletedWithWrappedCancellationException(g);
2928	<	}
2917	>	public void testRunAfterEither_actionFailed() {
2918	>	for (ExecutionMode m : ExecutionMode.values())
2919	>	for (Integer v1 : new Integer[] { 1, null })
2920	>	for (Integer v2 : new Integer[] { 2, null })
2921	>	{
2922	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2923	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2924	>	final FailingRunnable[] rs = new FailingRunnable[6];
2925	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
2926	>
2927	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2928	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2929	>	assertTrue(f.complete(v1));
2930	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2931	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2932	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2933	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2934	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2935	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2936	>	for (int i = 0; i < 4; i++) rs[i].assertInvoked();
2937	>	assertTrue(g.complete(v2));
2938	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2939	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2940	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2941	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2942	>
2943	>	checkCompletedNormally(f, v1);
2944	>	checkCompletedNormally(g, v2);
2945	>	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2946	>	}}
2947
2948		/**
2949		* thenCompose result completes normally after normal completion of source
2950		*/
2951	<	public void testThenCompose() {
2952	<	CompletableFuture<Integer> f, g;
2953	<	CompletableFutureInc r;
2954	<
2955	<	f = new CompletableFuture<>();
2956	<	g = f.thenCompose(r = new CompletableFutureInc());
2957	<	f.complete(one);
2958	<	checkCompletedNormally(g, two);
2959	<	assertTrue(r.ran);
2960	<
2961	<	f = new CompletableFuture<>();
2962	<	f.complete(one);
2963	<	g = f.thenCompose(r = new CompletableFutureInc());
2964	<	checkCompletedNormally(g, two);
2965	<	assertTrue(r.ran);
1263	<	}
2951	>	public void testThenCompose_normalCompletion() {
2952	>	for (ExecutionMode m : ExecutionMode.values())
2953	>	for (boolean createIncomplete : new boolean[] { true, false })
2954	>	for (Integer v1 : new Integer[] { 1, null })
2955	>	{
2956	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2957	>	final CompletableFutureInc r = new CompletableFutureInc(m);
2958	>	if (!createIncomplete) assertTrue(f.complete(v1));
2959	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
2960	>	if (createIncomplete) assertTrue(f.complete(v1));
2961	>
2962	>	checkCompletedNormally(g, inc(v1));
2963	>	checkCompletedNormally(f, v1);
2964	>	r.assertValue(v1);
2965	>	}}
2966
2967		/**
2968		* thenCompose result completes exceptionally after exceptional
2969		* completion of source
2970		*/
2971	<	public void testThenCompose2() {
2972	<	CompletableFuture<Integer> f, g;
2973	<	CompletableFutureInc r;
2974	<
2975	<	f = new CompletableFuture<>();
2976	<	g = f.thenCompose(r = new CompletableFutureInc());
2977	<	f.completeExceptionally(new CFException());
2978	<	checkCompletedWithWrappedCFException(g);
2979	<
2980	<	f = new CompletableFuture<>();
2981	<	f.completeExceptionally(new CFException());
2982	<	g = f.thenCompose(r = new CompletableFutureInc());
2983	<	checkCompletedWithWrappedCFException(g);
2984	<	}
2971	>	public void testThenCompose_exceptionalCompletion() {
2972	>	for (ExecutionMode m : ExecutionMode.values())
2973	>	for (boolean createIncomplete : new boolean[] { true, false })
2974	>	{
2975	>	final CFException ex = new CFException();
2976	>	final CompletableFutureInc r = new CompletableFutureInc(m);
2977	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2978	>	if (!createIncomplete) f.completeExceptionally(ex);
2979	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
2980	>	if (createIncomplete) f.completeExceptionally(ex);
2981	>
2982	>	checkCompletedWithWrappedException(g, ex);
2983	>	checkCompletedExceptionally(f, ex);
2984	>	r.assertNotInvoked();
2985	>	}}
2986
2987		/**
2988		* thenCompose result completes exceptionally if action does
2989		*/
2990	<	public void testThenCompose3() {
2991	<	CompletableFuture<Integer> f, g;
2992	<	FailingCompletableFutureFunction r;
2993	<
2994	<	f = new CompletableFuture<>();
2995	<	g = f.thenCompose(r = new FailingCompletableFutureFunction());
2996	<	f.complete(one);
2997	<	checkCompletedWithWrappedCFException(g);
2998	<
2999	<	f = new CompletableFuture<>();
3000	<	f.complete(one);
3001	<	g = f.thenCompose(r = new FailingCompletableFutureFunction());
3002	<	checkCompletedWithWrappedCFException(g);
3003	<	}
2990	>	public void testThenCompose_actionFailed() {
2991	>	for (ExecutionMode m : ExecutionMode.values())
2992	>	for (boolean createIncomplete : new boolean[] { true, false })
2993	>	for (Integer v1 : new Integer[] { 1, null })
2994	>	{
2995	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2996	>	final FailingCompletableFutureFunction r
2997	>	= new FailingCompletableFutureFunction(m);
2998	>	if (!createIncomplete) assertTrue(f.complete(v1));
2999	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3000	>	if (createIncomplete) assertTrue(f.complete(v1));
3001	>
3002	>	checkCompletedWithWrappedException(g, r.ex);
3003	>	checkCompletedNormally(f, v1);
3004	>	}}
3005
3006		/**
3007		* thenCompose result completes exceptionally if source cancelled
3008		*/
3009	<	public void testThenCompose4() {
3010	<	CompletableFuture<Integer> f, g;
3011	<	CompletableFutureInc r;
3009	>	public void testThenCompose_sourceCancelled() {
3010	>	for (ExecutionMode m : ExecutionMode.values())
3011	>	for (boolean createIncomplete : new boolean[] { true, false })
3012	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3013	>	{
3014	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3015	>	final CompletableFutureInc r = new CompletableFutureInc(m);
3016	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3017	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3018	>	if (createIncomplete) {
3019	>	checkIncomplete(g);
3020	>	assertTrue(f.cancel(mayInterruptIfRunning));
3021	>	}
3022
1309	–	f = new CompletableFuture<>();
1310	–	g = f.thenCompose(r = new CompletableFutureInc());
1311	–	assertTrue(f.cancel(true));
3023		checkCompletedWithWrappedCancellationException(g);
3024	<
3025	<	f = new CompletableFuture<>();
1315	<	assertTrue(f.cancel(true));
1316	<	g = f.thenCompose(r = new CompletableFutureInc());
1317	<	checkCompletedWithWrappedCancellationException(g);
1318	<	}
1319	<
1320	<
1321	<	// asyncs
1322	<
1323	<	/**
1324	<	* thenRunAsync result completes normally after normal completion of source
1325	<	*/
1326	<	public void testThenRunAsync() {
1327	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1328	<	Noop r = new Noop();
1329	<	CompletableFuture<Void> g = f.thenRunAsync(r);
1330	<	f.complete(null);
1331	<	checkCompletedNormally(g, null);
1332	<
1333	<	// reordered version
1334	<	f = new CompletableFuture<>();
1335	<	f.complete(null);
1336	<	r = new Noop();
1337	<	g = f.thenRunAsync(r);
1338	<	checkCompletedNormally(g, null);
1339	<	}
3024	>	checkCancelled(f);
3025	>	}}
3026
3027		/**
3028	<	* thenRunAsync result completes exceptionally after exceptional
1343	<	* completion of source
3028	>	* thenCompose result completes exceptionally if the result of the action does
3029		*/
3030	<	public void testThenRunAsync2() {
3031	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3032	<	Noop r = new Noop();
3033	<	CompletableFuture<Void> g = f.thenRunAsync(r);
3034	<	f.completeExceptionally(new CFException());
3035	<	try {
3036	<	g.join();
3037	<	shouldThrow();
3038	<	} catch (Exception ok) {
3030	>	public void testThenCompose_actionReturnsFailingFuture() {
3031	>	for (ExecutionMode m : ExecutionMode.values())
3032	>	for (int order = 0; order < 6; order++)
3033	>	for (Integer v1 : new Integer[] { 1, null })
3034	>	{
3035	>	final CFException ex = new CFException();
3036	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3037	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
3038	>	final CompletableFuture<Integer> h;
3039	>	// Test all permutations of orders
3040	>	switch (order) {
3041	>	case 0:
3042	>	assertTrue(f.complete(v1));
3043	>	assertTrue(g.completeExceptionally(ex));
3044	>	h = m.thenCompose(f, (x -> g));
3045	>	break;
3046	>	case 1:
3047	>	assertTrue(f.complete(v1));
3048	>	h = m.thenCompose(f, (x -> g));
3049	>	assertTrue(g.completeExceptionally(ex));
3050	>	break;
3051	>	case 2:
3052	>	assertTrue(g.completeExceptionally(ex));
3053	>	assertTrue(f.complete(v1));
3054	>	h = m.thenCompose(f, (x -> g));
3055	>	break;
3056	>	case 3:
3057	>	assertTrue(g.completeExceptionally(ex));
3058	>	h = m.thenCompose(f, (x -> g));
3059	>	assertTrue(f.complete(v1));
3060	>	break;
3061	>	case 4:
3062	>	h = m.thenCompose(f, (x -> g));
3063	>	assertTrue(f.complete(v1));
3064	>	assertTrue(g.completeExceptionally(ex));
3065	>	break;
3066	>	case 5:
3067	>	h = m.thenCompose(f, (x -> g));
3068	>	assertTrue(f.complete(v1));
3069	>	assertTrue(g.completeExceptionally(ex));
3070	>	break;
3071	>	default: throw new AssertionError();
3072		}
1355	–	checkCompletedWithWrappedCFException(g);
1356	–	}
3073
3074	<	/**
3075	<	* thenRunAsync result completes exceptionally if action does
3076	<	*/
3077	<	public void testThenRunAsync3() {
1362	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1363	<	FailingNoop r = new FailingNoop();
1364	<	CompletableFuture<Void> g = f.thenRunAsync(r);
1365	<	f.complete(null);
1366	<	checkCompletedWithWrappedCFException(g);
1367	<	}
3074	>	checkCompletedExceptionally(g, ex);
3075	>	checkCompletedWithWrappedException(h, ex);
3076	>	checkCompletedNormally(f, v1);
3077	>	}}
3078
3079	<	/**
1370	<	* thenRunAsync result completes exceptionally if source cancelled
1371	<	*/
1372	<	public void testThenRunAsync4() {
1373	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1374	<	Noop r = new Noop();
1375	<	CompletableFuture<Void> g = f.thenRunAsync(r);
1376	<	assertTrue(f.cancel(true));
1377	<	checkCompletedWithWrappedCancellationException(g);
1378	<	}
3079	>	// other static methods
3080
3081		/**
3082	<	* thenApplyAsync result completes normally after normal completion of source
3082	>	* allOf(no component futures) returns a future completed normally
3083	>	* with the value null
3084		*/
3085	<	public void testThenApplyAsync() {
3086	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3087	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
1386	<	f.complete(one);
1387	<	checkCompletedNormally(g, two);
3085	>	public void testAllOf_empty() throws Exception {
3086	>	CompletableFuture<Void> f = CompletableFuture.allOf();
3087	>	checkCompletedNormally(f, null);
3088		}
3089
3090		/**
3091	<	* thenApplyAsync result completes exceptionally after exceptional
3092	<	* completion of source
3091	>	* allOf returns a future completed normally with the value null
3092	>	* when all components complete normally
3093		*/
3094	<	public void testThenApplyAsync2() {
3095	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3096	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
3097	<	f.completeExceptionally(new CFException());
3098	<	checkCompletedWithWrappedCFException(g);
3094	>	public void testAllOf_normal() throws Exception {
3095	>	for (int k = 1; k < 10; k++) {
3096	>	CompletableFuture<Integer>[] fs
3097	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3098	>	for (int i = 0; i < k; i++)
3099	>	fs[i] = new CompletableFuture<>();
3100	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3101	>	for (int i = 0; i < k; i++) {
3102	>	checkIncomplete(f);
3103	>	checkIncomplete(CompletableFuture.allOf(fs));
3104	>	fs[i].complete(one);
3105	>	}
3106	>	checkCompletedNormally(f, null);
3107	>	checkCompletedNormally(CompletableFuture.allOf(fs), null);
3108	>	}
3109		}
3110
3111	<	/**
3112	<	* thenApplyAsync result completes exceptionally if action does
3113	<	*/
3114	<	public void testThenApplyAsync3() {
3115	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3116	<	FailingFunction r = new FailingFunction();
3117	<	CompletableFuture<Integer> g = f.thenApplyAsync(r);
3118	<	f.complete(null);
3119	<	checkCompletedWithWrappedCFException(g);
3111	>	public void testAllOf_normal_backwards() throws Exception {
3112	>	for (int k = 1; k < 10; k++) {
3113	>	CompletableFuture<Integer>[] fs
3114	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3115	>	for (int i = 0; i < k; i++)
3116	>	fs[i] = new CompletableFuture<>();
3117	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3118	>	for (int i = k - 1; i >= 0; i--) {
3119	>	checkIncomplete(f);
3120	>	checkIncomplete(CompletableFuture.allOf(fs));
3121	>	fs[i].complete(one);
3122	>	}
3123	>	checkCompletedNormally(f, null);
3124	>	checkCompletedNormally(CompletableFuture.allOf(fs), null);
3125	>	}
3126		}
3127
3128	<	/**
3129	<	* thenApplyAsync result completes exceptionally if source cancelled
3130	<	*/
3131	<	public void testThenApplyAsync4() {
3132	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3133	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
3134	<	assertTrue(f.cancel(true));
3135	<	checkCompletedWithWrappedCancellationException(g);
3128	>	public void testAllOf_exceptional() throws Exception {
3129	>	for (int k = 1; k < 10; k++) {
3130	>	CompletableFuture<Integer>[] fs
3131	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3132	>	CFException ex = new CFException();
3133	>	for (int i = 0; i < k; i++)
3134	>	fs[i] = new CompletableFuture<>();
3135	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3136	>	for (int i = 0; i < k; i++) {
3137	>	checkIncomplete(f);
3138	>	checkIncomplete(CompletableFuture.allOf(fs));
3139	>	if (i != k / 2) {
3140	>	fs[i].complete(i);
3141	>	checkCompletedNormally(fs[i], i);
3142	>	} else {
3143	>	fs[i].completeExceptionally(ex);
3144	>	checkCompletedExceptionally(fs[i], ex);
3145	>	}
3146	>	}
3147	>	checkCompletedWithWrappedException(f, ex);
3148	>	checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3149	>	}
3150		}
3151
3152		/**
3153	<	* thenAcceptAsync result completes normally after normal
1424	<	* completion of source
3153	>	* anyOf(no component futures) returns an incomplete future
3154		*/
3155	<	public void testThenAcceptAsync() {
3156	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3157	<	IncAction r = new IncAction();
3158	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
3159	<	f.complete(one);
1431	<	checkCompletedNormally(g, null);
1432	<	assertEquals(r.value, 2);
1433	<	}
3155	>	public void testAnyOf_empty() throws Exception {
3156	>	for (Integer v1 : new Integer[] { 1, null })
3157	>	{
3158	>	CompletableFuture<Object> f = CompletableFuture.anyOf();
3159	>	checkIncomplete(f);
3160
3161	<	/**
3162	<	* thenAcceptAsync result completes exceptionally after exceptional
3163	<	* completion of source
1438	<	*/
1439	<	public void testThenAcceptAsync2() {
1440	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1441	<	IncAction r = new IncAction();
1442	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
1443	<	f.completeExceptionally(new CFException());
1444	<	checkCompletedWithWrappedCFException(g);
1445	<	}
3161	>	f.complete(v1);
3162	>	checkCompletedNormally(f, v1);
3163	>	}}
3164
3165		/**
3166	<	* thenAcceptAsync result completes exceptionally if action does
3166	>	* anyOf returns a future completed normally with a value when
3167	>	* a component future does
3168		*/
3169	<	public void testThenAcceptAsync3() {
3170	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3171	<	FailingConsumer r = new FailingConsumer();
3172	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
3173	<	f.complete(null);
3174	<	checkCompletedWithWrappedCFException(g);
3169	>	public void testAnyOf_normal() throws Exception {
3170	>	for (int k = 0; k < 10; k++) {
3171	>	CompletableFuture[] fs = new CompletableFuture[k];
3172	>	for (int i = 0; i < k; i++)
3173	>	fs[i] = new CompletableFuture<>();
3174	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3175	>	checkIncomplete(f);
3176	>	for (int i = 0; i < k; i++) {
3177	>	fs[i].complete(i);
3178	>	checkCompletedNormally(f, 0);
3179	>	int x = (int) CompletableFuture.anyOf(fs).join();
3180	>	assertTrue(0 <= x && x <= i);
3181	>	}
3182	>	}
3183		}
3184	<
3185	<	/**
3186	<	* thenAcceptAsync result completes exceptionally if source cancelled
3187	<	*/
3188	<	public void testThenAcceptAsync4() {
3189	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3190	<	IncAction r = new IncAction();
3191	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
3192	<	assertTrue(f.cancel(true));
3193	<	checkCompletedWithWrappedCancellationException(g);
3184	>	public void testAnyOf_normal_backwards() throws Exception {
3185	>	for (int k = 0; k < 10; k++) {
3186	>	CompletableFuture[] fs = new CompletableFuture[k];
3187	>	for (int i = 0; i < k; i++)
3188	>	fs[i] = new CompletableFuture<>();
3189	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3190	>	checkIncomplete(f);
3191	>	for (int i = k - 1; i >= 0; i--) {
3192	>	fs[i].complete(i);
3193	>	checkCompletedNormally(f, k - 1);
3194	>	int x = (int) CompletableFuture.anyOf(fs).join();
3195	>	assertTrue(i <= x && x <= k - 1);
3196	>	}
3197	>	}
3198		}
3199
3200		/**
3201	<	* thenCombineAsync result completes normally after normal
1471	<	* completion of sources
3201	>	* anyOf result completes exceptionally when any component does.
3202		*/
3203	<	public void testThenCombineAsync() {
3204	<	CompletableFuture<Integer> f, g, h;
3205	<
3206	<	f = new CompletableFuture<>();
3207	<	g = new CompletableFuture<>();
3208	<	h = f.thenCombineAsync(g, subtract);
3209	<	f.complete(3);
3210	<	checkIncomplete(h);
3211	<	g.complete(1);
3212	<	checkCompletedNormally(h, 2);
3213	<
3214	<	f = new CompletableFuture<>();
3215	<	g = new CompletableFuture<>();
3216	<	h = f.thenCombineAsync(g, subtract);
3217	<	g.complete(1);
3218	<	checkIncomplete(h);
1489	<	f.complete(3);
1490	<	checkCompletedNormally(h, 2);
1491	<
1492	<	f = new CompletableFuture<>();
1493	<	g = new CompletableFuture<>();
1494	<	g.complete(1);
1495	<	f.complete(3);
1496	<	h = f.thenCombineAsync(g, subtract);
1497	<	checkCompletedNormally(h, 2);
3203	>	public void testAnyOf_exceptional() throws Exception {
3204	>	for (int k = 0; k < 10; k++) {
3205	>	CompletableFuture[] fs = new CompletableFuture[k];
3206	>	CFException[] exs = new CFException[k];
3207	>	for (int i = 0; i < k; i++) {
3208	>	fs[i] = new CompletableFuture<>();
3209	>	exs[i] = new CFException();
3210	>	}
3211	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3212	>	checkIncomplete(f);
3213	>	for (int i = 0; i < k; i++) {
3214	>	fs[i].completeExceptionally(exs[i]);
3215	>	checkCompletedWithWrappedException(f, exs[0]);
3216	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3217	>	}
3218	>	}
3219		}
3220
3221	<	/**
3222	<	* thenCombineAsync result completes exceptionally after exceptional
3223	<	* completion of either source
3224	<	*/
3225	<	public void testThenCombineAsync2() {
3226	<	CompletableFuture<Integer> f, g, h;
3227	<
3228	<	f = new CompletableFuture<>();
3229	<	g = new CompletableFuture<>();
3230	<	h = f.thenCombineAsync(g, subtract);
3231	<	f.completeExceptionally(new CFException());
3232	<	checkIncomplete(h);
3233	<	g.complete(1);
3234	<	checkCompletedWithWrappedCFException(h);
3235	<
3236	<	f = new CompletableFuture<>();
1516	<	g = new CompletableFuture<>();
1517	<	h = f.thenCombineAsync(g, subtract);
1518	<	g.completeExceptionally(new CFException());
1519	<	checkIncomplete(h);
1520	<	f.complete(3);
1521	<	checkCompletedWithWrappedCFException(h);
1522	<
1523	<	f = new CompletableFuture<>();
1524	<	g = new CompletableFuture<>();
1525	<	g.completeExceptionally(new CFException());
1526	<	f.complete(3);
1527	<	h = f.thenCombineAsync(g, subtract);
1528	<	checkCompletedWithWrappedCFException(h);
3221	>	public void testAnyOf_exceptional_backwards() throws Exception {
3222	>	for (int k = 0; k < 10; k++) {
3223	>	CompletableFuture[] fs = new CompletableFuture[k];
3224	>	CFException[] exs = new CFException[k];
3225	>	for (int i = 0; i < k; i++) {
3226	>	fs[i] = new CompletableFuture<>();
3227	>	exs[i] = new CFException();
3228	>	}
3229	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3230	>	checkIncomplete(f);
3231	>	for (int i = k - 1; i >= 0; i--) {
3232	>	fs[i].completeExceptionally(exs[i]);
3233	>	checkCompletedWithWrappedException(f, exs[k - 1]);
3234	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3235	>	}
3236	>	}
3237		}
3238
3239		/**
3240	<	* thenCombineAsync result completes exceptionally if action does
3240	>	* Completion methods throw NullPointerException with null arguments
3241		*/
3242	<	public void testThenCombineAsync3() {
3242	>	public void testNPE() {
3243		CompletableFuture<Integer> f = new CompletableFuture<>();
3244	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3245	<	FailingBiFunction r = new FailingBiFunction();
3246	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, r);
1539	<	f.complete(one);
1540	<	checkIncomplete(g);
1541	<	assertFalse(r.ran);
1542	<	f2.complete(two);
1543	<	checkCompletedWithWrappedCFException(g);
1544	<	assertTrue(r.ran);
1545	<	}
1546	<
1547	<	/**
1548	<	* thenCombineAsync result completes exceptionally if either source cancelled
1549	<	*/
1550	<	public void testThenCombineAsync4() {
1551	<	CompletableFuture<Integer> f, g, h;
3244	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3245	>	CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
3246	>	ThreadExecutor exec = new ThreadExecutor();
3247
3248	<	f = new CompletableFuture<>();
3249	<	g = new CompletableFuture<>();
3250	<	h = f.thenCombineAsync(g, subtract);
3251	<	assertTrue(f.cancel(true));
3252	<	checkIncomplete(h);
3253	<	g.complete(1);
3254	<	checkCompletedWithWrappedCancellationException(h);
3248	>	Runnable[] throwingActions = {
3249	>	() -> CompletableFuture.supplyAsync(null),
3250	>	() -> CompletableFuture.supplyAsync(null, exec),
3251	>	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3252	>
3253	>	() -> CompletableFuture.runAsync(null),
3254	>	() -> CompletableFuture.runAsync(null, exec),
3255	>	() -> CompletableFuture.runAsync(() -> {}, null),
3256	>
3257	>	() -> f.completeExceptionally(null),
3258	>
3259	>	() -> f.thenApply(null),
3260	>	() -> f.thenApplyAsync(null),
3261	>	() -> f.thenApplyAsync((x) -> x, null),
3262	>	() -> f.thenApplyAsync(null, exec),
3263	>
3264	>	() -> f.thenAccept(null),
3265	>	() -> f.thenAcceptAsync(null),
3266	>	() -> f.thenAcceptAsync((x) -> {} , null),
3267	>	() -> f.thenAcceptAsync(null, exec),
3268	>
3269	>	() -> f.thenRun(null),
3270	>	() -> f.thenRunAsync(null),
3271	>	() -> f.thenRunAsync(() -> {} , null),
3272	>	() -> f.thenRunAsync(null, exec),
3273	>
3274	>	() -> f.thenCombine(g, null),
3275	>	() -> f.thenCombineAsync(g, null),
3276	>	() -> f.thenCombineAsync(g, null, exec),
3277	>	() -> f.thenCombine(nullFuture, (x, y) -> x),
3278	>	() -> f.thenCombineAsync(nullFuture, (x, y) -> x),
3279	>	() -> f.thenCombineAsync(nullFuture, (x, y) -> x, exec),
3280	>	() -> f.thenCombineAsync(g, (x, y) -> x, null),
3281	>
3282	>	() -> f.thenAcceptBoth(g, null),
3283	>	() -> f.thenAcceptBothAsync(g, null),
3284	>	() -> f.thenAcceptBothAsync(g, null, exec),
3285	>	() -> f.thenAcceptBoth(nullFuture, (x, y) -> {}),
3286	>	() -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}),
3287	>	() -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}, exec),
3288	>	() -> f.thenAcceptBothAsync(g, (x, y) -> {}, null),
3289	>
3290	>	() -> f.runAfterBoth(g, null),
3291	>	() -> f.runAfterBothAsync(g, null),
3292	>	() -> f.runAfterBothAsync(g, null, exec),
3293	>	() -> f.runAfterBoth(nullFuture, () -> {}),
3294	>	() -> f.runAfterBothAsync(nullFuture, () -> {}),
3295	>	() -> f.runAfterBothAsync(nullFuture, () -> {}, exec),
3296	>	() -> f.runAfterBothAsync(g, () -> {}, null),
3297	>
3298	>	() -> f.applyToEither(g, null),
3299	>	() -> f.applyToEitherAsync(g, null),
3300	>	() -> f.applyToEitherAsync(g, null, exec),
3301	>	() -> f.applyToEither(nullFuture, (x) -> x),
3302	>	() -> f.applyToEitherAsync(nullFuture, (x) -> x),
3303	>	() -> f.applyToEitherAsync(nullFuture, (x) -> x, exec),
3304	>	() -> f.applyToEitherAsync(g, (x) -> x, null),
3305	>
3306	>	() -> f.acceptEither(g, null),
3307	>	() -> f.acceptEitherAsync(g, null),
3308	>	() -> f.acceptEitherAsync(g, null, exec),
3309	>	() -> f.acceptEither(nullFuture, (x) -> {}),
3310	>	() -> f.acceptEitherAsync(nullFuture, (x) -> {}),
3311	>	() -> f.acceptEitherAsync(nullFuture, (x) -> {}, exec),
3312	>	() -> f.acceptEitherAsync(g, (x) -> {}, null),
3313	>
3314	>	() -> f.runAfterEither(g, null),
3315	>	() -> f.runAfterEitherAsync(g, null),
3316	>	() -> f.runAfterEitherAsync(g, null, exec),
3317	>	() -> f.runAfterEither(nullFuture, () -> {}),
3318	>	() -> f.runAfterEitherAsync(nullFuture, () -> {}),
3319	>	() -> f.runAfterEitherAsync(nullFuture, () -> {}, exec),
3320	>	() -> f.runAfterEitherAsync(g, () -> {}, null),
3321	>
3322	>	() -> f.thenCompose(null),
3323	>	() -> f.thenComposeAsync(null),
3324	>	() -> f.thenComposeAsync(new CompletableFutureInc(ExecutionMode.EXECUTOR), null),
3325	>	() -> f.thenComposeAsync(null, exec),
3326	>
3327	>	() -> f.exceptionally(null),
3328	>
3329	>	() -> f.handle(null),
3330	>
3331	>	() -> CompletableFuture.allOf((CompletableFuture<?>)null),
3332	>	() -> CompletableFuture.allOf((CompletableFuture<?>[])null),
3333	>	() -> CompletableFuture.allOf(f, null),
3334	>	() -> CompletableFuture.allOf(null, f),
3335	>
3336	>	() -> CompletableFuture.anyOf((CompletableFuture<?>)null),
3337	>	() -> CompletableFuture.anyOf((CompletableFuture<?>[])null),
3338	>	() -> CompletableFuture.anyOf(f, null),
3339	>	() -> CompletableFuture.anyOf(null, f),
3340	>
3341	>	() -> f.obtrudeException(null),
3342	>
3343	>	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3344	>	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3345	>	() -> CompletableFuture.delayedExecutor(1L, null),
3346
3347	<	f = new CompletableFuture<>();
3348	<	g = new CompletableFuture<>();
1563	<	h = f.thenCombineAsync(g, subtract);
1564	<	assertTrue(g.cancel(true));
1565	<	checkIncomplete(h);
1566	<	f.complete(3);
1567	<	checkCompletedWithWrappedCancellationException(h);
3347	>	() -> f.orTimeout(1L, null),
3348	>	() -> f.completeOnTimeout(42, 1L, null),
3349
3350	<	f = new CompletableFuture<>();
3351	<	g = new CompletableFuture<>();
3352	<	g.complete(3);
1572	<	assertTrue(f.cancel(true));
1573	<	h = f.thenCombineAsync(g, subtract);
1574	<	checkCompletedWithWrappedCancellationException(h);
3350	>	() -> CompletableFuture.failedFuture(null),
3351	>	() -> CompletableFuture.failedStage(null),
3352	>	};
3353
3354	<	f = new CompletableFuture<>();
3355	<	g = new CompletableFuture<>();
1578	<	f.complete(3);
1579	<	assertTrue(g.cancel(true));
1580	<	h = f.thenCombineAsync(g, subtract);
1581	<	checkCompletedWithWrappedCancellationException(h);
3354	>	assertThrows(NullPointerException.class, throwingActions);
3355	>	assertEquals(0, exec.count.get());
3356		}
3357
3358		/**
3359	<	* thenAcceptBothAsync result completes normally after normal
1586	<	* completion of sources
3359	>	* Test submissions to an executor that rejects all tasks.
3360		*/
3361	<	public void testThenAcceptBothAsync() {
3362	<	CompletableFuture<Integer> f, g;
3363	<	CompletableFuture<Void> h;
3364	<	SubtractAction r;
3365	<
3366	<	f = new CompletableFuture<>();
3367	<	g = new CompletableFuture<>();
3368	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
3369	<	f.complete(3);
3370	<	checkIncomplete(h);
3371	<	g.complete(1);
3372	<	checkCompletedNormally(h, null);
3373	<	assertEquals(r.value, 2);
3374	<
3375	<	f = new CompletableFuture<>();
3376	<	g = new CompletableFuture<>();
3377	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
3378	<	g.complete(1);
3379	<	checkIncomplete(h);
3380	<	f.complete(3);
3381	<	checkCompletedNormally(h, null);
3382	<	assertEquals(r.value, 2);
3383	<
3384	<	f = new CompletableFuture<>();
3385	<	g = new CompletableFuture<>();
3386	<	g.complete(1);
3387	<	f.complete(3);
3388	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
3389	<	checkCompletedNormally(h, null);
3390	<	assertEquals(r.value, 2);
3391	<	}
3361	>	public void testRejectingExecutor() {
3362	>	for (Integer v : new Integer[] { 1, null })
3363	>	{
3364	>	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3365	>
3366	>	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3367	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3368	>
3369	>	List<CompletableFuture<?>> futures = new ArrayList<>();
3370	>
3371	>	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3372	>	srcs.add(complete);
3373	>	srcs.add(incomplete);
3374	>
3375	>	for (CompletableFuture<Integer> src : srcs) {
3376	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3377	>	fs.add(src.thenRunAsync(() -> {}, e));
3378	>	fs.add(src.thenAcceptAsync((z) -> {}, e));
3379	>	fs.add(src.thenApplyAsync((z) -> z, e));
3380	>
3381	>	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3382	>	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3383	>	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3384	>
3385	>	fs.add(src.applyToEitherAsync(src, (z) -> z, e));
3386	>	fs.add(src.acceptEitherAsync(src, (z) -> {}, e));
3387	>	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3388	>
3389	>	fs.add(src.thenComposeAsync((z) -> null, e));
3390	>	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3391	>	fs.add(src.handleAsync((z, t) -> null, e));
3392	>
3393	>	for (CompletableFuture<?> future : fs) {
3394	>	if (src.isDone())
3395	>	checkCompletedWithWrappedException(future, e.ex);
3396	>	else
3397	>	checkIncomplete(future);
3398	>	}
3399	>	futures.addAll(fs);
3400	>	}
3401
3402	<	/**
3403	<	* thenAcceptBothAsync result completes exceptionally after exceptional
1622	<	* completion of source
1623	<	*/
1624	<	public void testThenAcceptBothAsync2() {
1625	<	CompletableFuture<Integer> f, g;
1626	<	CompletableFuture<Void> h;
1627	<	SubtractAction r;
3402	>	{
3403	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3404
3405	<	f = new CompletableFuture<>();
3406	<	g = new CompletableFuture<>();
1631	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1632	<	f.completeExceptionally(new CFException());
1633	<	checkIncomplete(h);
1634	<	g.complete(1);
1635	<	checkCompletedWithWrappedCFException(h);
3405	>	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3406	>	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3407
3408	<	f = new CompletableFuture<>();
3409	<	g = new CompletableFuture<>();
1639	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1640	<	g.completeExceptionally(new CFException());
1641	<	checkIncomplete(h);
1642	<	f.complete(3);
1643	<	checkCompletedWithWrappedCFException(h);
3408	>	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3409	>	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3410
3411	<	f = new CompletableFuture<>();
3412	<	g = new CompletableFuture<>();
1647	<	f.complete(3);
1648	<	g.completeExceptionally(new CFException());
1649	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1650	<	checkCompletedWithWrappedCFException(h);
3411	>	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3412	>	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3413
3414	<	f = new CompletableFuture<>();
3415	<	g = new CompletableFuture<>();
3416	<	f.completeExceptionally(new CFException());
3417	<	g.complete(3);
1656	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1657	<	checkCompletedWithWrappedCFException(h);
1658	<	}
3414	>	for (CompletableFuture<?> future : fs)
3415	>	checkIncomplete(future);
3416	>	futures.addAll(fs);
3417	>	}
3418
3419	<	/**
3420	<	* thenAcceptBothAsync result completes exceptionally if action does
1662	<	*/
1663	<	public void testThenAcceptBothAsync3() {
1664	<	CompletableFuture<Integer> f, g;
1665	<	CompletableFuture<Void> h;
1666	<	FailingBiConsumer r;
3419	>	{
3420	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3421
3422	<	f = new CompletableFuture<>();
3423	<	g = new CompletableFuture<>();
1670	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer());
1671	<	f.complete(3);
1672	<	checkIncomplete(h);
1673	<	g.complete(1);
1674	<	checkCompletedWithWrappedCFException(h);
3422	>	fs.add(complete.applyToEitherAsync(incomplete, (z) -> z, e));
3423	>	fs.add(incomplete.applyToEitherAsync(complete, (z) -> z, e));
3424
3425	<	f = new CompletableFuture<>();
3426	<	g = new CompletableFuture<>();
1678	<	f.complete(3);
1679	<	g.complete(1);
1680	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer());
1681	<	checkCompletedWithWrappedCFException(h);
1682	<	}
3425	>	fs.add(complete.acceptEitherAsync(incomplete, (z) -> {}, e));
3426	>	fs.add(incomplete.acceptEitherAsync(complete, (z) -> {}, e));
3427
3428	<	/**
3429	<	* thenAcceptBothAsync result completes exceptionally if either source cancelled
1686	<	*/
1687	<	public void testThenAcceptBothAsync4() {
1688	<	CompletableFuture<Integer> f, g;
1689	<	CompletableFuture<Void> h;
1690	<	SubtractAction r;
3428	>	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3429	>	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3430
3431	<	f = new CompletableFuture<>();
3432	<	g = new CompletableFuture<>();
3433	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
3434	<	assertTrue(f.cancel(true));
1696	<	checkIncomplete(h);
1697	<	g.complete(1);
1698	<	checkCompletedWithWrappedCancellationException(h);
3431	>	for (CompletableFuture<?> future : fs)
3432	>	checkCompletedWithWrappedException(future, e.ex);
3433	>	futures.addAll(fs);
3434	>	}
3435
3436	<	f = new CompletableFuture<>();
1701	<	g = new CompletableFuture<>();
1702	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1703	<	assertTrue(g.cancel(true));
1704	<	checkIncomplete(h);
1705	<	f.complete(3);
1706	<	checkCompletedWithWrappedCancellationException(h);
3436	>	incomplete.complete(v);
3437
3438	<	f = new CompletableFuture<>();
3439	<	g = new CompletableFuture<>();
1710	<	f.complete(3);
1711	<	assertTrue(g.cancel(true));
1712	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1713	<	checkCompletedWithWrappedCancellationException(h);
3438	>	for (CompletableFuture<?> future : futures)
3439	>	checkCompletedWithWrappedException(future, e.ex);
3440
3441	<	f = new CompletableFuture<>();
3442	<	g = new CompletableFuture<>();
1717	<	assertTrue(f.cancel(true));
1718	<	g.complete(3);
1719	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction());
1720	<	checkCompletedWithWrappedCancellationException(h);
1721	<	}
3441	>	assertEquals(futures.size(), e.count.get());
3442	>	}}
3443
3444		/**
3445	<	* runAfterBothAsync result completes normally after normal
3446	<	* completion of sources
3445	>	* Test submissions to an executor that rejects all tasks, but
3446	>	* should never be invoked because the dependent future is
3447	>	* explicitly completed.
3448		*/
3449	<	public void testRunAfterBothAsync() {
3450	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3451	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3452	<	Noop r = new Noop();
1731	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1732	<	f.complete(one);
1733	<	checkIncomplete(g);
1734	<	f2.complete(two);
1735	<	checkCompletedNormally(g, null);
1736	<	assertTrue(r.ran);
1737	<	}
3449	>	public void testRejectingExecutorNeverInvoked() {
3450	>	for (Integer v : new Integer[] { 1, null })
3451	>	{
3452	>	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3453
3454	<	/**
3455	<	* runAfterBothAsync result completes exceptionally after exceptional
1741	<	* completion of source
1742	<	*/
1743	<	public void testRunAfterBothAsync2() {
1744	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1745	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1746	<	Noop r = new Noop();
1747	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1748	<	f.completeExceptionally(new CFException());
1749	<	f2.complete(two);
1750	<	checkCompletedWithWrappedCFException(g);
3454	>	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3455	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3456
3457	<	r = new Noop();
1753	<	f = new CompletableFuture<>();
1754	<	f2 = new CompletableFuture<>();
1755	<	g = f.runAfterBothAsync(f2, r);
1756	<	f.complete(one);
1757	<	f2.completeExceptionally(new CFException());
1758	<	checkCompletedWithWrappedCFException(g);
1759	<	}
3457	>	List<CompletableFuture<?>> futures = new ArrayList<>();
3458
3459	<	/**
3460	<	* runAfterBothAsync result completes exceptionally if action does
3461	<	*/
1764	<	public void testRunAfterBothAsync3() {
1765	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1766	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1767	<	FailingNoop r = new FailingNoop();
1768	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1769	<	f.complete(one);
1770	<	checkIncomplete(g);
1771	<	f2.complete(two);
1772	<	checkCompletedWithWrappedCFException(g);
1773	<	}
3459	>	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3460	>	srcs.add(complete);
3461	>	srcs.add(incomplete);
3462
3463	<	/**
3464	<	* runAfterBothAsync result completes exceptionally if either source cancelled
3465	<	*/
3466	<	public void testRunAfterBothAsync4() {
1779	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1780	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1781	<	Noop r = new Noop();
1782	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1783	<	assertTrue(f.cancel(true));
1784	<	f2.complete(two);
1785	<	checkCompletedWithWrappedCancellationException(g);
3463	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3464	>	fs.add(incomplete.thenRunAsync(() -> {}, e));
3465	>	fs.add(incomplete.thenAcceptAsync((z) -> {}, e));
3466	>	fs.add(incomplete.thenApplyAsync((z) -> z, e));
3467
3468	<	r = new Noop();
3469	<	f = new CompletableFuture<>();
3470	<	f2 = new CompletableFuture<>();
1790	<	g = f.runAfterBothAsync(f2, r);
1791	<	f.complete(one);
1792	<	assertTrue(f2.cancel(true));
1793	<	checkCompletedWithWrappedCancellationException(g);
1794	<	}
3468	>	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3469	>	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3470	>	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3471
3472	<	/**
3473	<	* applyToEitherAsync result completes normally after normal
3474	<	* completion of sources
1799	<	*/
1800	<	public void testApplyToEitherAsync() {
1801	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1802	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1803	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
1804	<	f.complete(one);
1805	<	checkCompletedNormally(g, two);
3472	>	fs.add(incomplete.applyToEitherAsync(incomplete, (z) -> z, e));
3473	>	fs.add(incomplete.acceptEitherAsync(incomplete, (z) -> {}, e));
3474	>	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3475
3476	<	f = new CompletableFuture<>();
3477	<	f.complete(one);
3478	<	f2 = new CompletableFuture<>();
1810	<	g = f.applyToEitherAsync(f2, inc);
1811	<	checkCompletedNormally(g, two);
1812	<	}
3476	>	fs.add(incomplete.thenComposeAsync((z) -> null, e));
3477	>	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3478	>	fs.add(incomplete.handleAsync((z, t) -> null, e));
3479
3480	<	/**
3481	<	* applyToEitherAsync result completes exceptionally after exceptional
1816	<	* completion of source
1817	<	*/
1818	<	public void testApplyToEitherAsync2() {
1819	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1820	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1821	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
1822	<	f.completeExceptionally(new CFException());
1823	<	checkCompletedWithWrappedCFException(g);
3480	>	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3481	>	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3482
3483	<	f = new CompletableFuture<>();
3484	<	f2 = new CompletableFuture<>();
1827	<	f2.completeExceptionally(new CFException());
1828	<	g = f.applyToEitherAsync(f2, inc);
1829	<	f.complete(one);
1830	<	checkCompletedWithWrappedCFException(g);
1831	<	}
3483	>	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3484	>	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3485
3486	<	/**
3487	<	* applyToEitherAsync result completes exceptionally if action does
1835	<	*/
1836	<	public void testApplyToEitherAsync3() {
1837	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1838	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1839	<	FailingFunction r = new FailingFunction();
1840	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r);
1841	<	f.complete(one);
1842	<	checkCompletedWithWrappedCFException(g);
1843	<	}
3486	>	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3487	>	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3488
3489	<	/**
3490	<	* applyToEitherAsync result completes exceptionally if either source cancelled
1847	<	*/
1848	<	public void testApplyToEitherAsync4() {
1849	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1850	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1851	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
1852	<	assertTrue(f.cancel(true));
1853	<	checkCompletedWithWrappedCancellationException(g);
3489	>	for (CompletableFuture<?> future : fs)
3490	>	checkIncomplete(future);
3491
3492	<	f = new CompletableFuture<>();
3493	<	f2 = new CompletableFuture<>();
1857	<	assertTrue(f2.cancel(true));
1858	<	g = f.applyToEitherAsync(f2, inc);
1859	<	checkCompletedWithWrappedCancellationException(g);
1860	<	}
3492	>	for (CompletableFuture<?> future : fs)
3493	>	future.complete(null);
3494
3495	<	/**
1863	<	* acceptEitherAsync result completes normally after normal
1864	<	* completion of sources
1865	<	*/
1866	<	public void testAcceptEitherAsync() {
1867	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1868	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1869	<	IncAction r = new IncAction();
1870	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1871	<	f.complete(one);
1872	<	checkCompletedNormally(g, null);
1873	<	assertEquals(r.value, 2);
1874	<
1875	<	r = new IncAction();
1876	<	f = new CompletableFuture<>();
1877	<	f.complete(one);
1878	<	f2 = new CompletableFuture<>();
1879	<	g = f.acceptEitherAsync(f2, r);
1880	<	checkCompletedNormally(g, null);
1881	<	assertEquals(r.value, 2);
1882	<	}
1883	<
1884	<	/**
1885	<	* acceptEitherAsync result completes exceptionally after exceptional
1886	<	* completion of source
1887	<	*/
1888	<	public void testAcceptEitherAsync2() {
1889	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1890	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1891	<	IncAction r = new IncAction();
1892	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1893	<	f.completeExceptionally(new CFException());
1894	<	checkCompletedWithWrappedCFException(g);
3495	>	incomplete.complete(v);
3496
3497	<	r = new IncAction();
3498	<	f = new CompletableFuture<>();
1898	<	f2 = new CompletableFuture<>();
1899	<	f2.completeExceptionally(new CFException());
1900	<	g = f.acceptEitherAsync(f2, r);
1901	<	f.complete(one);
1902	<	checkCompletedWithWrappedCFException(g);
1903	<	}
3497	>	for (CompletableFuture<?> future : fs)
3498	>	checkCompletedNormally(future, null);
3499
3500	<	/**
3501	<	* acceptEitherAsync result completes exceptionally if action does
1907	<	*/
1908	<	public void testAcceptEitherAsync3() {
1909	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1910	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1911	<	FailingConsumer r = new FailingConsumer();
1912	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1913	<	f.complete(one);
1914	<	checkCompletedWithWrappedCFException(g);
1915	<	}
3500	>	assertEquals(0, e.count.get());
3501	>	}}
3502
3503		/**
3504	<	* acceptEitherAsync result completes exceptionally if either
1919	<	* source cancelled
3504	>	* toCompletableFuture returns this CompletableFuture.
3505		*/
3506	<	public void testAcceptEitherAsync4() {
3506	>	public void testToCompletableFuture() {
3507		CompletableFuture<Integer> f = new CompletableFuture<>();
3508	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1924	<	IncAction r = new IncAction();
1925	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1926	<	assertTrue(f.cancel(true));
1927	<	checkCompletedWithWrappedCancellationException(g);
1928	<
1929	<	r = new IncAction();
1930	<	f = new CompletableFuture<>();
1931	<	f2 = new CompletableFuture<>();
1932	<	assertTrue(f2.cancel(true));
1933	<	g = f.acceptEitherAsync(f2, r);
1934	<	checkCompletedWithWrappedCancellationException(g);
3508	>	assertSame(f, f.toCompletableFuture());
3509		}
3510
3511	<	/**
1938	<	* runAfterEitherAsync result completes normally after normal
1939	<	* completion of sources
1940	<	*/
1941	<	public void testRunAfterEitherAsync() {
1942	<	CompletableFuture<Integer> f = new CompletableFuture<>();
1943	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
1944	<	Noop r = new Noop();
1945	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1946	<	f.complete(one);
1947	<	checkCompletedNormally(g, null);
1948	<	assertTrue(r.ran);
1949	<
1950	<	r = new Noop();
1951	<	f = new CompletableFuture<>();
1952	<	f.complete(one);
1953	<	f2 = new CompletableFuture<>();
1954	<	g = f.runAfterEitherAsync(f2, r);
1955	<	checkCompletedNormally(g, null);
1956	<	assertTrue(r.ran);
1957	<	}
3511	>	// jdk9
3512
3513		/**
3514	<	* runAfterEitherAsync result completes exceptionally after exceptional
1961	<	* completion of source
3514	>	* newIncompleteFuture returns an incomplete CompletableFuture
3515		*/
3516	<	public void testRunAfterEitherAsync2() {
3516	>	public void testNewIncompleteFuture() {
3517	>	for (Integer v1 : new Integer[] { 1, null })
3518	>	{
3519		CompletableFuture<Integer> f = new CompletableFuture<>();
3520	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3521	<	Noop r = new Noop();
3522	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
3523	<	f.completeExceptionally(new CFException());
3524	<	checkCompletedWithWrappedCFException(g);
3525	<
3526	<	r = new Noop();
3527	<	f = new CompletableFuture<>();
3528	<	f2 = new CompletableFuture<>();
3529	<	f2.completeExceptionally(new CFException());
1975	<	g = f.runAfterEitherAsync(f2, r);
1976	<	f.complete(one);
1977	<	checkCompletedWithWrappedCFException(g);
1978	<	}
3520	>	CompletableFuture<Integer> g = f.newIncompleteFuture();
3521	>	checkIncomplete(f);
3522	>	checkIncomplete(g);
3523	>	f.complete(v1);
3524	>	checkCompletedNormally(f, v1);
3525	>	checkIncomplete(g);
3526	>	g.complete(v1);
3527	>	checkCompletedNormally(g, v1);
3528	>	assertSame(g.getClass(), CompletableFuture.class);
3529	>	}}
3530
3531		/**
3532	<	* runAfterEitherAsync result completes exceptionally if action does
3532	>	* completedStage returns a completed CompletionStage
3533		*/
3534	<	public void testRunAfterEitherAsync3() {
3535	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3536	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3537	<	FailingNoop r = new FailingNoop();
3538	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
3539	<	f.complete(one);
3540	<	checkCompletedWithWrappedCFException(g);
3534	>	public void testCompletedStage() {
3535	>	AtomicInteger x = new AtomicInteger(0);
3536	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3537	>	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3538	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3539	>	assertEquals(x.get(), 1);
3540	>	assertNull(r.get());
3541		}
3542
3543		/**
3544	<	* runAfterEitherAsync result completes exceptionally if either
3545	<	* source cancelled
3544	>	* defaultExecutor by default returns the commonPool if
3545	>	* it supports more than one thread.
3546		*/
3547	<	public void testRunAfterEitherAsync4() {
3547	>	public void testDefaultExecutor() {
3548		CompletableFuture<Integer> f = new CompletableFuture<>();
3549	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3550	<	Noop r = new Noop();
3551	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
3552	<	assertTrue(f.cancel(true));
3553	<	checkCompletedWithWrappedCancellationException(g);
3554	<
2004	<	r = new Noop();
2005	<	f = new CompletableFuture<>();
2006	<	f2 = new CompletableFuture<>();
2007	<	assertTrue(f2.cancel(true));
2008	<	g = f.runAfterEitherAsync(f2, r);
2009	<	checkCompletedWithWrappedCancellationException(g);
2010	<	}
2011	<
2012	<	/**
2013	<	* thenComposeAsync result completes normally after normal
2014	<	* completion of source
2015	<	*/
2016	<	public void testThenComposeAsync() {
2017	<	CompletableFuture<Integer> f, g;
2018	<	CompletableFutureInc r;
2019	<
2020	<	f = new CompletableFuture<>();
2021	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2022	<	f.complete(one);
2023	<	checkCompletedNormally(g, two);
2024	<
2025	<	f = new CompletableFuture<>();
2026	<	f.complete(one);
2027	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2028	<	checkCompletedNormally(g, two);
2029	<	}
2030	<
2031	<	/**
2032	<	* thenComposeAsync result completes exceptionally after
2033	<	* exceptional completion of source
2034	<	*/
2035	<	public void testThenComposeAsync2() {
2036	<	CompletableFuture<Integer> f, g;
2037	<	CompletableFutureInc r;
2038	<
2039	<	f = new CompletableFuture<>();
2040	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2041	<	f.completeExceptionally(new CFException());
2042	<	checkCompletedWithWrappedCFException(g);
2043	<	assertFalse(r.ran);
2044	<
2045	<	f = new CompletableFuture<>();
2046	<	f.completeExceptionally(new CFException());
2047	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2048	<	checkCompletedWithWrappedCFException(g);
2049	<	assertFalse(r.ran);
2050	<	}
2051	<
2052	<	/**
2053	<	* thenComposeAsync result completes exceptionally if action does
2054	<	*/
2055	<	public void testThenComposeAsync3() {
2056	<	CompletableFuture<Integer> f, g;
2057	<	FailingCompletableFutureFunction r;
2058	<
2059	<	f = new CompletableFuture<>();
2060	<	g = f.thenComposeAsync(r = new FailingCompletableFutureFunction());
2061	<	f.complete(one);
2062	<	checkCompletedWithWrappedCFException(g);
2063	<
2064	<	f = new CompletableFuture<>();
2065	<	f.complete(one);
2066	<	g = f.thenComposeAsync(r = new FailingCompletableFutureFunction());
2067	<	checkCompletedWithWrappedCFException(g);
2068	<	}
2069	<
2070	<	/**
2071	<	* thenComposeAsync result completes exceptionally if source cancelled
2072	<	*/
2073	<	public void testThenComposeAsync4() {
2074	<	CompletableFuture<Integer> f, g;
2075	<	CompletableFutureInc r;
2076	<
2077	<	f = new CompletableFuture<>();
2078	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2079	<	assertTrue(f.cancel(true));
2080	<	checkCompletedWithWrappedCancellationException(g);
2081	<
2082	<	f = new CompletableFuture<>();
2083	<	assertTrue(f.cancel(true));
2084	<	g = f.thenComposeAsync(r = new CompletableFutureInc());
2085	<	checkCompletedWithWrappedCancellationException(g);
3549	>	Executor e = f.defaultExecutor();
3550	>	Executor c = ForkJoinPool.commonPool();
3551	>	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3552	>	assertSame(e, c);
3553	>	else
3554	>	assertNotSame(e, c);
3555		}
3556
2088	–
2089	–	// async with explicit executors
2090	–
3557		/**
3558	<	* thenRunAsync result completes normally after normal completion of source
3558	>	* failedFuture returns a CompletableFuture completed
3559	>	* exceptionally with the given Exception
3560		*/
3561	<	public void testThenRunAsyncE() {
3562	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3563	<	Noop r = new Noop();
3564	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2098	<	f.complete(null);
2099	<	checkCompletedNormally(g, null);
2100	<
2101	<	// reordered version
2102	<	f = new CompletableFuture<>();
2103	<	f.complete(null);
2104	<	r = new Noop();
2105	<	g = f.thenRunAsync(r, new ThreadExecutor());
2106	<	checkCompletedNormally(g, null);
3561	>	public void testFailedFuture() {
3562	>	CFException ex = new CFException();
3563	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3564	>	checkCompletedExceptionally(f, ex);
3565		}
3566
3567		/**
3568	<	* thenRunAsync result completes exceptionally after exceptional
2111	<	* completion of source
3568	>	* failedFuture(null) throws NPE
3569		*/
3570	<	public void testThenRunAsync2E() {
2114	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2115	<	Noop r = new Noop();
2116	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
2117	<	f.completeExceptionally(new CFException());
3570	>	public void testFailedFuture_null() {
3571		try {
3572	<	g.join();
3572	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3573		shouldThrow();
3574	<	} catch (Exception ok) {
2122	<	}
2123	<	checkCompletedWithWrappedCFException(g);
3574	>	} catch (NullPointerException success) {}
3575		}
3576
3577		/**
3578	<	* thenRunAsync result completes exceptionally if action does
3578	>	* copy returns a CompletableFuture that is completed normally,
3579	>	* with the same value, when source is.
3580		*/
3581	<	public void testThenRunAsync3E() {
3581	>	public void testCopy() {
3582		CompletableFuture<Integer> f = new CompletableFuture<>();
3583	<	FailingNoop r = new FailingNoop();
3584	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
3585	<	f.complete(null);
3586	<	checkCompletedWithWrappedCFException(g);
3583	>	CompletableFuture<Integer> g = f.copy();
3584	>	checkIncomplete(f);
3585	>	checkIncomplete(g);
3586	>	f.complete(1);
3587	>	checkCompletedNormally(f, 1);
3588	>	checkCompletedNormally(g, 1);
3589		}
3590
3591		/**
3592	<	* thenRunAsync result completes exceptionally if source cancelled
3592	>	* copy returns a CompletableFuture that is completed exceptionally
3593	>	* when source is.
3594		*/
3595	<	public void testThenRunAsync4E() {
3595	>	public void testCopy2() {
3596		CompletableFuture<Integer> f = new CompletableFuture<>();
3597	<	Noop r = new Noop();
3598	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
3599	<	assertTrue(f.cancel(true));
3600	<	checkCompletedWithWrappedCancellationException(g);
3597	>	CompletableFuture<Integer> g = f.copy();
3598	>	checkIncomplete(f);
3599	>	checkIncomplete(g);
3600	>	CFException ex = new CFException();
3601	>	f.completeExceptionally(ex);
3602	>	checkCompletedExceptionally(f, ex);
3603	>	checkCompletedWithWrappedException(g, ex);
3604		}
3605
3606		/**
3607	<	* thenApplyAsync result completes normally after normal completion of source
3607	>	* minimalCompletionStage returns a CompletableFuture that is
3608	>	* completed normally, with the same value, when source is.
3609		*/
3610	<	public void testThenApplyAsyncE() {
3610	>	public void testMinimalCompletionStage() {
3611		CompletableFuture<Integer> f = new CompletableFuture<>();
3612	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3613	<	f.complete(one);
3614	<	checkCompletedNormally(g, two);
3612	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3613	>	AtomicInteger x = new AtomicInteger(0);
3614	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3615	>	checkIncomplete(f);
3616	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3617	>	f.complete(1);
3618	>	checkCompletedNormally(f, 1);
3619	>	assertEquals(x.get(), 1);
3620	>	assertNull(r.get());
3621		}
3622
3623		/**
3624	<	* thenApplyAsync result completes exceptionally after exceptional
3625	<	* completion of source
3624	>	* minimalCompletionStage returns a CompletableFuture that is
3625	>	* completed exceptionally when source is.
3626		*/
3627	<	public void testThenApplyAsync2E() {
3627	>	public void testMinimalCompletionStage2() {
3628		CompletableFuture<Integer> f = new CompletableFuture<>();
3629	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3630	<	f.completeExceptionally(new CFException());
3631	<	checkCompletedWithWrappedCFException(g);
3629	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3630	>	AtomicInteger x = new AtomicInteger(0);
3631	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3632	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3633	>	checkIncomplete(f);
3634	>	CFException ex = new CFException();
3635	>	f.completeExceptionally(ex);
3636	>	checkCompletedExceptionally(f, ex);
3637	>	assertEquals(x.get(), 0);
3638	>	assertEquals(r.get().getCause(), ex);
3639		}
3640
3641		/**
3642	<	* thenApplyAsync result completes exceptionally if action does
3642	>	* failedStage returns a CompletionStage completed
3643	>	* exceptionally with the given Exception
3644		*/
3645	<	public void testThenApplyAsync3E() {
3646	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3647	<	FailingFunction r = new FailingFunction();
3648	<	CompletableFuture<Integer> g = f.thenApplyAsync(r, new ThreadExecutor());
3649	<	f.complete(null);
3650	<	checkCompletedWithWrappedCFException(g);
3645	>	public void testFailedStage() {
3646	>	CFException ex = new CFException();
3647	>	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3648	>	AtomicInteger x = new AtomicInteger(0);
3649	>	AtomicReference<Throwable> r = new AtomicReference<Throwable>();
3650	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3651	>	assertEquals(x.get(), 0);
3652	>	assertEquals(r.get(), ex);
3653		}
3654
3655		/**
3656	<	* thenApplyAsync result completes exceptionally if source cancelled
3656	>	* completeAsync completes with value of given supplier
3657		*/
3658	<	public void testThenApplyAsync4E() {
3658	>	public void testCompleteAsync() {
3659	>	for (Integer v1 : new Integer[] { 1, null })
3660	>	{
3661		CompletableFuture<Integer> f = new CompletableFuture<>();
3662	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
3663	<	assertTrue(f.cancel(true));
3664	<	checkCompletedWithWrappedCancellationException(g);
3665	<	}
3662	>	f.completeAsync(() -> v1);
3663	>	f.join();
3664	>	checkCompletedNormally(f, v1);
3665	>	}}
3666
3667		/**
3668	<	* thenAcceptAsync result completes normally after normal
2192	<	* completion of source
3668	>	* completeAsync completes exceptionally if given supplier throws
3669		*/
3670	<	public void testThenAcceptAsyncE() {
3670	>	public void testCompleteAsync2() {
3671		CompletableFuture<Integer> f = new CompletableFuture<>();
3672	<	IncAction r = new IncAction();
3673	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3674	<	f.complete(one);
3675	<	checkCompletedNormally(g, null);
3676	<	assertEquals(r.value, 2);
3672	>	CFException ex = new CFException();
3673	>	f.completeAsync(() -> {if (true) throw ex; return 1;});
3674	>	try {
3675	>	f.join();
3676	>	shouldThrow();
3677	>	} catch (CompletionException success) {}
3678	>	checkCompletedWithWrappedException(f, ex);
3679		}
3680
3681		/**
3682	<	* thenAcceptAsync result completes exceptionally after exceptional
2205	<	* completion of source
3682	>	* completeAsync with given executor completes with value of given supplier
3683		*/
3684	<	public void testThenAcceptAsync2E() {
3684	>	public void testCompleteAsync3() {
3685	>	for (Integer v1 : new Integer[] { 1, null })
3686	>	{
3687		CompletableFuture<Integer> f = new CompletableFuture<>();
3688	<	IncAction r = new IncAction();
3689	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3690	<	f.completeExceptionally(new CFException());
3691	<	checkCompletedWithWrappedCFException(g);
3692	<	}
3688	>	ThreadExecutor executor = new ThreadExecutor();
3689	>	f.completeAsync(() -> v1, executor);
3690	>	assertSame(v1, f.join());
3691	>	checkCompletedNormally(f, v1);
3692	>	assertEquals(1, executor.count.get());
3693	>	}}
3694
3695		/**
3696	<	* thenAcceptAsync result completes exceptionally if action does
3696	>	* completeAsync with given executor completes exceptionally if
3697	>	* given supplier throws
3698		*/
3699	<	public void testThenAcceptAsync3E() {
3699	>	public void testCompleteAsync4() {
3700		CompletableFuture<Integer> f = new CompletableFuture<>();
3701	<	FailingConsumer r = new FailingConsumer();
3702	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3703	<	f.complete(null);
3704	<	checkCompletedWithWrappedCFException(g);
3701	>	CFException ex = new CFException();
3702	>	ThreadExecutor executor = new ThreadExecutor();
3703	>	f.completeAsync(() -> {if (true) throw ex; return 1;}, executor);
3704	>	try {
3705	>	f.join();
3706	>	shouldThrow();
3707	>	} catch (CompletionException success) {}
3708	>	checkCompletedWithWrappedException(f, ex);
3709	>	assertEquals(1, executor.count.get());
3710		}
3711
3712		/**
3713	<	* thenAcceptAsync result completes exceptionally if source cancelled
3713	>	* orTimeout completes with TimeoutException if not complete
3714		*/
3715	<	public void testThenAcceptAsync4E() {
3715	>	public void testOrTimeout_timesOut() {
3716	>	long timeoutMillis = timeoutMillis();
3717		CompletableFuture<Integer> f = new CompletableFuture<>();
3718	<	IncAction r = new IncAction();
3719	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3720	<	assertTrue(f.cancel(true));
3721	<	checkCompletedWithWrappedCancellationException(g);
2235	<	}
2236	<
2237	<	/**
2238	<	* thenCombineAsync result completes normally after normal
2239	<	* completion of sources
2240	<	*/
2241	<	public void testThenCombineAsyncE() {
2242	<	CompletableFuture<Integer> f, g, h;
2243	<	ThreadExecutor e = new ThreadExecutor();
2244	<	int count = 0;
2245	<
2246	<	f = new CompletableFuture<>();
2247	<	g = new CompletableFuture<>();
2248	<	h = f.thenCombineAsync(g, subtract, e);
2249	<	f.complete(3);
2250	<	checkIncomplete(h);
2251	<	g.complete(1);
2252	<	checkCompletedNormally(h, 2);
2253	<	assertEquals(++count, e.count.get());
2254	<
2255	<	f = new CompletableFuture<>();
2256	<	g = new CompletableFuture<>();
2257	<	h = f.thenCombineAsync(g, subtract, e);
2258	<	g.complete(1);
2259	<	checkIncomplete(h);
2260	<	f.complete(3);
2261	<	checkCompletedNormally(h, 2);
2262	<	assertEquals(++count, e.count.get());
2263	<
2264	<	f = new CompletableFuture<>();
2265	<	g = new CompletableFuture<>();
2266	<	g.complete(1);
2267	<	f.complete(3);
2268	<	h = f.thenCombineAsync(g, subtract, e);
2269	<	checkCompletedNormally(h, 2);
2270	<	assertEquals(++count, e.count.get());
2271	<	}
2272	<
2273	<	/**
2274	<	* thenCombineAsync result completes exceptionally after exceptional
2275	<	* completion of either source
2276	<	*/
2277	<	public void testThenCombineAsync2E() {
2278	<	CompletableFuture<Integer> f, g, h;
2279	<	ThreadExecutor e = new ThreadExecutor();
2280	<	int count = 0;
2281	<
2282	<	f = new CompletableFuture<>();
2283	<	g = new CompletableFuture<>();
2284	<	h = f.thenCombineAsync(g, subtract, e);
2285	<	f.completeExceptionally(new CFException());
2286	<	checkIncomplete(h);
2287	<	g.complete(1);
2288	<	checkCompletedWithWrappedCFException(h);
2289	<
2290	<	f = new CompletableFuture<>();
2291	<	g = new CompletableFuture<>();
2292	<	h = f.thenCombineAsync(g, subtract, e);
2293	<	g.completeExceptionally(new CFException());
2294	<	checkIncomplete(h);
2295	<	f.complete(3);
2296	<	checkCompletedWithWrappedCFException(h);
2297	<
2298	<	f = new CompletableFuture<>();
2299	<	g = new CompletableFuture<>();
2300	<	g.completeExceptionally(new CFException());
2301	<	h = f.thenCombineAsync(g, subtract, e);
2302	<	checkIncomplete(h);
2303	<	f.complete(3);
2304	<	checkCompletedWithWrappedCFException(h);
2305	<
2306	<	assertEquals(0, e.count.get());
3718	>	long startTime = System.nanoTime();
3719	>	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3720	>	checkCompletedWithTimeoutException(f);
3721	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3722		}
3723
3724		/**
3725	<	* thenCombineAsync result completes exceptionally if action does
3725	>	* orTimeout completes normally if completed before timeout
3726		*/
3727	<	public void testThenCombineAsync3E() {
3727	>	public void testOrTimeout_completed() {
3728	>	for (Integer v1 : new Integer[] { 1, null })
3729	>	{
3730		CompletableFuture<Integer> f = new CompletableFuture<>();
3731	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3732	<	FailingBiFunction r = new FailingBiFunction();
3733	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, r, new ThreadExecutor());
3734	<	f.complete(one);
3735	<	checkIncomplete(g);
3736	<	assertFalse(r.ran);
3737	<	f2.complete(two);
3738	<	checkCompletedWithWrappedCFException(g);
3739	<	assertTrue(r.ran);
3740	<	}
2324	<
2325	<	/**
2326	<	* thenCombineAsync result completes exceptionally if either source cancelled
2327	<	*/
2328	<	public void testThenCombineAsync4E() {
2329	<	CompletableFuture<Integer> f, g, h;
2330	<	ThreadExecutor e = new ThreadExecutor();
2331	<
2332	<	f = new CompletableFuture<>();
2333	<	g = new CompletableFuture<>();
2334	<	h = f.thenCombineAsync(g, subtract, e);
2335	<	assertTrue(f.cancel(true));
2336	<	checkIncomplete(h);
2337	<	g.complete(1);
2338	<	checkCompletedWithWrappedCancellationException(h);
2339	<
2340	<	f = new CompletableFuture<>();
2341	<	g = new CompletableFuture<>();
2342	<	h = f.thenCombineAsync(g, subtract, e);
2343	<	assertTrue(g.cancel(true));
2344	<	checkIncomplete(h);
2345	<	f.complete(3);
2346	<	checkCompletedWithWrappedCancellationException(h);
2347	<
2348	<	f = new CompletableFuture<>();
2349	<	g = new CompletableFuture<>();
2350	<	assertTrue(g.cancel(true));
2351	<	h = f.thenCombineAsync(g, subtract, e);
2352	<	checkIncomplete(h);
2353	<	f.complete(3);
2354	<	checkCompletedWithWrappedCancellationException(h);
2355	<
2356	<	f = new CompletableFuture<>();
2357	<	g = new CompletableFuture<>();
2358	<	assertTrue(f.cancel(true));
2359	<	assertTrue(g.cancel(true));
2360	<	h = f.thenCombineAsync(g, subtract, e);
2361	<	checkCompletedWithWrappedCancellationException(h);
2362	<
2363	<	assertEquals(0, e.count.get());
2364	<	}
2365	<
2366	<	/**
2367	<	* thenAcceptBothAsync result completes normally after normal
2368	<	* completion of sources
2369	<	*/
2370	<	public void testThenAcceptBothAsyncE() {
2371	<	CompletableFuture<Integer> f, g;
2372	<	CompletableFuture<Void> h;
2373	<	SubtractAction r;
2374	<	ThreadExecutor e = new ThreadExecutor();
2375	<
2376	<	f = new CompletableFuture<>();
2377	<	g = new CompletableFuture<>();
2378	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2379	<	f.complete(3);
2380	<	checkIncomplete(h);
2381	<	g.complete(1);
2382	<	checkCompletedNormally(h, null);
2383	<	assertEquals(r.value, 2);
2384	<
2385	<	f = new CompletableFuture<>();
2386	<	g = new CompletableFuture<>();
2387	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2388	<	g.complete(1);
2389	<	checkIncomplete(h);
2390	<	f.complete(3);
2391	<	checkCompletedNormally(h, null);
2392	<	assertEquals(r.value, 2);
2393	<
2394	<	f = new CompletableFuture<>();
2395	<	g = new CompletableFuture<>();
2396	<	g.complete(1);
2397	<	f.complete(3);
2398	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2399	<	checkCompletedNormally(h, null);
2400	<	assertEquals(r.value, 2);
2401	<
2402	<	assertEquals(3, e.count.get());
2403	<	}
2404	<
2405	<	/**
2406	<	* thenAcceptBothAsync result completes exceptionally after exceptional
2407	<	* completion of source
2408	<	*/
2409	<	public void testThenAcceptBothAsync2E() {
2410	<	CompletableFuture<Integer> f, g;
2411	<	CompletableFuture<Void> h;
2412	<	SubtractAction r;
2413	<	ThreadExecutor e = new ThreadExecutor();
2414	<
2415	<	f = new CompletableFuture<>();
2416	<	g = new CompletableFuture<>();
2417	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2418	<	f.completeExceptionally(new CFException());
2419	<	checkIncomplete(h);
2420	<	g.complete(1);
2421	<	checkCompletedWithWrappedCFException(h);
2422	<
2423	<	f = new CompletableFuture<>();
2424	<	g = new CompletableFuture<>();
2425	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2426	<	g.completeExceptionally(new CFException());
2427	<	checkIncomplete(h);
2428	<	f.complete(3);
2429	<	checkCompletedWithWrappedCFException(h);
2430	<
2431	<	f = new CompletableFuture<>();
2432	<	g = new CompletableFuture<>();
2433	<	f.complete(3);
2434	<	g.completeExceptionally(new CFException());
2435	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2436	<	checkCompletedWithWrappedCFException(h);
2437	<
2438	<	f = new CompletableFuture<>();
2439	<	g = new CompletableFuture<>();
2440	<	f.completeExceptionally(new CFException());
2441	<	g.complete(3);
2442	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2443	<	checkCompletedWithWrappedCFException(h);
2444	<
2445	<	assertEquals(0, e.count.get());
2446	<	}
2447	<
2448	<	/**
2449	<	* thenAcceptBothAsync result completes exceptionally if action does
2450	<	*/
2451	<	public void testThenAcceptBothAsync3E() {
2452	<	CompletableFuture<Integer> f, g;
2453	<	CompletableFuture<Void> h;
2454	<	FailingBiConsumer r;
2455	<	ThreadExecutor e = new ThreadExecutor();
2456	<
2457	<	f = new CompletableFuture<>();
2458	<	g = new CompletableFuture<>();
2459	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer(), e);
2460	<	f.complete(3);
2461	<	checkIncomplete(h);
2462	<	g.complete(1);
2463	<	checkCompletedWithWrappedCFException(h);
2464	<
2465	<	f = new CompletableFuture<>();
2466	<	g = new CompletableFuture<>();
2467	<	f.complete(3);
2468	<	g.complete(1);
2469	<	h = f.thenAcceptBothAsync(g, r = new FailingBiConsumer(), e);
2470	<	checkCompletedWithWrappedCFException(h);
2471	<
2472	<	assertEquals(2, e.count.get());
2473	<	}
3731	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3732	>	long startTime = System.nanoTime();
3733	>	f.complete(v1);
3734	>	assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3735	>	assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3736	>	g.complete(v1);
3737	>	checkCompletedNormally(f, v1);
3738	>	checkCompletedNormally(g, v1);
3739	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3740	>	}}
3741
3742		/**
3743	<	* thenAcceptBothAsync result completes exceptionally if either source cancelled
3743	>	* completeOnTimeout completes with given value if not complete
3744		*/
3745	<	public void testThenAcceptBothAsync4E() {
3746	<	CompletableFuture<Integer> f, g;
3747	<	CompletableFuture<Void> h;
2481	<	SubtractAction r;
2482	<	ThreadExecutor e = new ThreadExecutor();
2483	<
2484	<	f = new CompletableFuture<>();
2485	<	g = new CompletableFuture<>();
2486	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2487	<	assertTrue(f.cancel(true));
2488	<	checkIncomplete(h);
2489	<	g.complete(1);
2490	<	checkCompletedWithWrappedCancellationException(h);
2491	<
2492	<	f = new CompletableFuture<>();
2493	<	g = new CompletableFuture<>();
2494	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2495	<	assertTrue(g.cancel(true));
2496	<	checkIncomplete(h);
2497	<	f.complete(3);
2498	<	checkCompletedWithWrappedCancellationException(h);
2499	<
2500	<	f = new CompletableFuture<>();
2501	<	g = new CompletableFuture<>();
2502	<	f.complete(3);
2503	<	assertTrue(g.cancel(true));
2504	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2505	<	checkCompletedWithWrappedCancellationException(h);
2506	<
2507	<	f = new CompletableFuture<>();
2508	<	g = new CompletableFuture<>();
2509	<	assertTrue(f.cancel(true));
2510	<	g.complete(3);
2511	<	h = f.thenAcceptBothAsync(g, r = new SubtractAction(), e);
2512	<	checkCompletedWithWrappedCancellationException(h);
2513	<
2514	<	assertEquals(0, e.count.get());
3745	>	public void testCompleteOnTimeout_timesOut() {
3746	>	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3747	>	() -> testCompleteOnTimeout_timesOut(null));
3748		}
3749
3750		/**
3751	<	* runAfterBothAsync result completes normally after normal
2519	<	* completion of sources
3751	>	* completeOnTimeout completes with given value if not complete
3752		*/
3753	<	public void testRunAfterBothAsyncE() {
3753	>	public void testCompleteOnTimeout_timesOut(Integer v) {
3754	>	long timeoutMillis = timeoutMillis();
3755		CompletableFuture<Integer> f = new CompletableFuture<>();
3756	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3757	<	Noop r = new Noop();
3758	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
3759	<	f.complete(one);
3760	<	checkIncomplete(g);
3761	<	f2.complete(two);
2529	<	checkCompletedNormally(g, null);
2530	<	assertTrue(r.ran);
3756	>	long startTime = System.nanoTime();
3757	>	assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS));
3758	>	assertSame(v, f.join());
3759	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3760	>	f.complete(99);         // should have no effect
3761	>	checkCompletedNormally(f, v);
3762		}
3763
3764		/**
3765	<	* runAfterBothAsync result completes exceptionally after exceptional
2535	<	* completion of source
3765	>	* completeOnTimeout has no effect if completed within timeout
3766		*/
3767	<	public void testRunAfterBothAsync2E() {
3767	>	public void testCompleteOnTimeout_completed() {
3768	>	for (Integer v1 : new Integer[] { 1, null })
3769	>	{
3770		CompletableFuture<Integer> f = new CompletableFuture<>();
3771	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3772	<	Noop r = new Noop();
3773	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
3774	<	f.completeExceptionally(new CFException());
3775	<	f2.complete(two);
3776	<	checkCompletedWithWrappedCFException(g);
3771	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3772	>	long startTime = System.nanoTime();
3773	>	f.complete(v1);
3774	>	assertSame(f, f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3775	>	assertSame(g, g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3776	>	g.complete(v1);
3777	>	checkCompletedNormally(f, v1);
3778	>	checkCompletedNormally(g, v1);
3779	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3780	>	}}
3781	>
3782	>	/**
3783	>	* delayedExecutor returns an executor that delays submission
3784	>	*/
3785	>	public void testDelayedExecutor() {
3786	>	testInParallel(() -> testDelayedExecutor(null, null),
3787	>	() -> testDelayedExecutor(null, 1),
3788	>	() -> testDelayedExecutor(new ThreadExecutor(), 1),
3789	>	() -> testDelayedExecutor(new ThreadExecutor(), 1));
3790	>	}
3791	>
3792	>	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
3793	>	long timeoutMillis = timeoutMillis();
3794	>	// Use an "unreasonably long" long timeout to catch lingering threads
3795	>	long longTimeoutMillis = 1000 * 60 * 60 * 24;
3796	>	final Executor delayer, longDelayer;
3797	>	if (executor == null) {
3798	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
3799	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
3800	>	} else {
3801	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
3802	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
3803	>	}
3804	>	long startTime = System.nanoTime();
3805	>	CompletableFuture<Integer> f =
3806	>	CompletableFuture.supplyAsync(() -> v, delayer);
3807	>	CompletableFuture<Integer> g =
3808	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
3809	>
3810	>	assertNull(g.getNow(null));
3811	>
3812	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
3813	>	long millisElapsed = millisElapsedSince(startTime);
3814	>	assertTrue(millisElapsed >= timeoutMillis);
3815	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
3816
3817	<	r = new Noop();
2547	<	f = new CompletableFuture<>();
2548	<	f2 = new CompletableFuture<>();
2549	<	g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2550	<	f.complete(one);
2551	<	f2.completeExceptionally(new CFException());
2552	<	checkCompletedWithWrappedCFException(g);
2553	<	}
3817	>	checkCompletedNormally(f, v);
3818
2555	–	/**
2556	–	* runAfterBothAsync result completes exceptionally if action does
2557	–	*/
2558	–	public void testRunAfterBothAsync3E() {
2559	–	CompletableFuture<Integer> f = new CompletableFuture<>();
2560	–	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2561	–	FailingNoop r = new FailingNoop();
2562	–	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2563	–	f.complete(one);
3819		checkIncomplete(g);
3820	<	f2.complete(two);
2566	<	checkCompletedWithWrappedCFException(g);
2567	<	}
2568	<
2569	<	/**
2570	<	* runAfterBothAsync result completes exceptionally if either source cancelled
2571	<	*/
2572	<	public void testRunAfterBothAsync4E() {
2573	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2574	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2575	<	Noop r = new Noop();
2576	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2577	<	assertTrue(f.cancel(true));
2578	<	f2.complete(two);
2579	<	checkCompletedWithWrappedCancellationException(g);
2580	<
2581	<	r = new Noop();
2582	<	f = new CompletableFuture<>();
2583	<	f2 = new CompletableFuture<>();
2584	<	g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2585	<	f.complete(one);
2586	<	assertTrue(f2.cancel(true));
2587	<	checkCompletedWithWrappedCancellationException(g);
2588	<	}
2589	<
2590	<	/**
2591	<	* applyToEitherAsync result completes normally after normal
2592	<	* completion of sources
2593	<	*/
2594	<	public void testApplyToEitherAsyncE() {
2595	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2596	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2597	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2598	<	f.complete(one);
2599	<	checkCompletedNormally(g, two);
2600	<
2601	<	f = new CompletableFuture<>();
2602	<	f.complete(one);
2603	<	f2 = new CompletableFuture<>();
2604	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2605	<	checkCompletedNormally(g, two);
2606	<	}
2607	<
2608	<	/**
2609	<	* applyToEitherAsync result completes exceptionally after exceptional
2610	<	* completion of source
2611	<	*/
2612	<	public void testApplyToEitherAsync2E() {
2613	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2614	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2615	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2616	<	f.completeExceptionally(new CFException());
2617	<	checkCompletedWithWrappedCFException(g);
2618	<
2619	<	f = new CompletableFuture<>();
2620	<	f2 = new CompletableFuture<>();
2621	<	f2.completeExceptionally(new CFException());
2622	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2623	<	f.complete(one);
2624	<	checkCompletedWithWrappedCFException(g);
2625	<	}
2626	<
2627	<	/**
2628	<	* applyToEitherAsync result completes exceptionally if action does
2629	<	*/
2630	<	public void testApplyToEitherAsync3E() {
2631	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2632	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2633	<	FailingFunction r = new FailingFunction();
2634	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r, new ThreadExecutor());
2635	<	f.complete(one);
2636	<	checkCompletedWithWrappedCFException(g);
2637	<	}
2638	<
2639	<	/**
2640	<	* applyToEitherAsync result completes exceptionally if either source cancelled
2641	<	*/
2642	<	public void testApplyToEitherAsync4E() {
2643	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2644	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2645	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2646	<	assertTrue(f.cancel(true));
2647	<	checkCompletedWithWrappedCancellationException(g);
2648	<
2649	<	f = new CompletableFuture<>();
2650	<	f2 = new CompletableFuture<>();
2651	<	assertTrue(f2.cancel(true));
2652	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2653	<	checkCompletedWithWrappedCancellationException(g);
2654	<	}
2655	<
2656	<	/**
2657	<	* acceptEitherAsync result completes normally after normal
2658	<	* completion of sources
2659	<	*/
2660	<	public void testAcceptEitherAsyncE() {
2661	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2662	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2663	<	IncAction r = new IncAction();
2664	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2665	<	f.complete(one);
2666	<	checkCompletedNormally(g, null);
2667	<	assertEquals(r.value, 2);
2668	<
2669	<	r = new IncAction();
2670	<	f = new CompletableFuture<>();
2671	<	f.complete(one);
2672	<	f2 = new CompletableFuture<>();
2673	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2674	<	checkCompletedNormally(g, null);
2675	<	assertEquals(r.value, 2);
2676	<	}
2677	<
2678	<	/**
2679	<	* acceptEitherAsync result completes exceptionally after exceptional
2680	<	* completion of source
2681	<	*/
2682	<	public void testAcceptEitherAsync2E() {
2683	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2684	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2685	<	IncAction r = new IncAction();
2686	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2687	<	f.completeExceptionally(new CFException());
2688	<	checkCompletedWithWrappedCFException(g);
2689	<
2690	<	r = new IncAction();
2691	<	f = new CompletableFuture<>();
2692	<	f2 = new CompletableFuture<>();
2693	<	f2.completeExceptionally(new CFException());
2694	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2695	<	f.complete(one);
2696	<	checkCompletedWithWrappedCFException(g);
2697	<	}
2698	<
2699	<	/**
2700	<	* acceptEitherAsync result completes exceptionally if action does
2701	<	*/
2702	<	public void testAcceptEitherAsync3E() {
2703	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2704	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2705	<	FailingConsumer r = new FailingConsumer();
2706	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2707	<	f.complete(one);
2708	<	checkCompletedWithWrappedCFException(g);
3820	>	assertTrue(g.cancel(true));
3821		}
3822
3823	<	/**
2712	<	* acceptEitherAsync result completes exceptionally if either
2713	<	* source cancelled
2714	<	*/
2715	<	public void testAcceptEitherAsync4E() {
2716	<	CompletableFuture<Integer> f = new CompletableFuture<>();
2717	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
2718	<	IncAction r = new IncAction();
2719	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2720	<	assertTrue(f.cancel(true));
2721	<	checkCompletedWithWrappedCancellationException(g);
2722	<
2723	<	r = new IncAction();
2724	<	f = new CompletableFuture<>();
2725	<	f2 = new CompletableFuture<>();
2726	<	assertTrue(f2.cancel(true));
2727	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
2728	<	checkCompletedWithWrappedCancellationException(g);
2729	<	}
3823	>	//--- tests of implementation details; not part of official tck ---
3824
3825	<	/**
3826	<	* runAfterEitherAsync result completes normally after normal
3827	<	* completion of sources
3828	<	*/
3829	<	public void testRunAfterEitherAsyncE() {
3830	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3831	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3832	<	Noop r = new Noop();
3833	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2740	<	f.complete(one);
2741	<	checkCompletedNormally(g, null);
2742	<	assertTrue(r.ran);
3825	>	Object resultOf(CompletableFuture<?> f) {
3826	>	SecurityManager sm = System.getSecurityManager();
3827	>	if (sm != null) {
3828	>	try {
3829	>	System.setSecurityManager(null);
3830	>	} catch (SecurityException giveUp) {
3831	>	return "Reflection not available";
3832	>	}
3833	>	}
3834
3835	<	r = new Noop();
3836	<	f = new CompletableFuture<>();
3837	<	f.complete(one);
3838	<	f2 = new CompletableFuture<>();
3839	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
3840	<	checkCompletedNormally(g, null);
3841	<	assertTrue(r.ran);
3835	>	try {
3836	>	java.lang.reflect.Field resultField
3837	>	= CompletableFuture.class.getDeclaredField("result");
3838	>	resultField.setAccessible(true);
3839	>	return resultField.get(f);
3840	>	} catch (Throwable t) {
3841	>	throw new AssertionError(t);
3842	>	} finally {
3843	>	if (sm != null) System.setSecurityManager(sm);
3844	>	}
3845		}
3846
3847	<	/**
3848	<	* runAfterEitherAsync result completes exceptionally after exceptional
3849	<	* completion of source
3850	<	*/
3851	<	public void testRunAfterEitherAsync2E() {
3852	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3853	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3854	<	Noop r = new Noop();
3855	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
3856	<	f.completeExceptionally(new CFException());
3857	<	checkCompletedWithWrappedCFException(g);
3847	>	public void testExceptionPropagationReusesResultObject() {
3848	>	if (!testImplementationDetails) return;
3849	>	for (ExecutionMode m : ExecutionMode.values())
3850	>	{
3851	>	final CFException ex = new CFException();
3852	>	final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
3853	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3854	>
3855	>	final Runnable noopRunnable = new Noop(m);
3856	>	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
3857	>	final Function<Integer, Integer> incFunction = new IncFunction(m);
3858	>
3859	>	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
3860	>	= new ArrayList<>();
3861	>
3862	>	funs.add((y) -> m.thenRun(y, noopRunnable));
3863	>	funs.add((y) -> m.thenAccept(y, noopConsumer));
3864	>	funs.add((y) -> m.thenApply(y, incFunction));
3865	>
3866	>	funs.add((y) -> m.runAfterEither(y, incomplete, noopRunnable));
3867	>	funs.add((y) -> m.acceptEither(y, incomplete, noopConsumer));
3868	>	funs.add((y) -> m.applyToEither(y, incomplete, incFunction));
3869	>
3870	>	funs.add((y) -> m.runAfterBoth(y, v42, noopRunnable));
3871	>	funs.add((y) -> m.runAfterBoth(v42, y, noopRunnable));
3872	>	funs.add((y) -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3873	>	funs.add((y) -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
3874	>	funs.add((y) -> m.thenCombine(y, v42, new SubtractFunction(m)));
3875	>	funs.add((y) -> m.thenCombine(v42, y, new SubtractFunction(m)));
3876	>
3877	>	funs.add((y) -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
3878	>
3879	>	funs.add((y) -> m.thenCompose(y, new CompletableFutureInc(m)));
3880	>
3881	>	funs.add((y) -> CompletableFuture.allOf(y));
3882	>	funs.add((y) -> CompletableFuture.allOf(y, v42));
3883	>	funs.add((y) -> CompletableFuture.allOf(v42, y));
3884	>	funs.add((y) -> CompletableFuture.anyOf(y));
3885	>	funs.add((y) -> CompletableFuture.anyOf(y, incomplete));
3886	>	funs.add((y) -> CompletableFuture.anyOf(incomplete, y));
3887
3888	<	r = new Noop();
3889	<	f = new CompletableFuture<>();
3890	<	f2 = new CompletableFuture<>();
3891	<	f2.completeExceptionally(new CFException());
3892	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
3893	<	f.complete(one);
3894	<	checkCompletedWithWrappedCFException(g);
3895	<	}
3888	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3889	>	fun : funs) {
3890	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3891	>	f.completeExceptionally(ex);
3892	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3893	>	checkCompletedWithWrappedException(src, ex);
3894	>	CompletableFuture<?> dep = fun.apply(src);
3895	>	checkCompletedWithWrappedException(dep, ex);
3896	>	assertSame(resultOf(src), resultOf(dep));
3897	>	}
3898
3899	<	/**
3900	<	* runAfterEitherAsync result completes exceptionally if action does
3901	<	*/
3902	<	public void testRunAfterEitherAsync3E() {
3903	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3904	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3905	<	FailingNoop r = new FailingNoop();
3906	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
3907	<	f.complete(one);
3908	<	checkCompletedWithWrappedCFException(g);
2784	<	}
3899	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3900	>	fun : funs) {
3901	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3902	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3903	>	CompletableFuture<?> dep = fun.apply(src);
3904	>	f.completeExceptionally(ex);
3905	>	checkCompletedWithWrappedException(src, ex);
3906	>	checkCompletedWithWrappedException(dep, ex);
3907	>	assertSame(resultOf(src), resultOf(dep));
3908	>	}
3909
3910	<	/**
3911	<	* runAfterEitherAsync result completes exceptionally if either
3912	<	* source cancelled
3913	<	*/
3914	<	public void testRunAfterEitherAsync4E() {
3915	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3916	<	CompletableFuture<Integer> f2 = new CompletableFuture<>();
3917	<	Noop r = new Noop();
3918	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
3919	<	assertTrue(f.cancel(true));
3920	<	checkCompletedWithWrappedCancellationException(g);
3910	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3911	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3912	>	fun : funs) {
3913	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3914	>	f.cancel(mayInterruptIfRunning);
3915	>	checkCancelled(f);
3916	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3917	>	checkCompletedWithWrappedCancellationException(src);
3918	>	CompletableFuture<?> dep = fun.apply(src);
3919	>	checkCompletedWithWrappedCancellationException(dep);
3920	>	assertSame(resultOf(src), resultOf(dep));
3921	>	}
3922
3923	<	r = new Noop();
3924	<	f = new CompletableFuture<>();
3925	<	f2 = new CompletableFuture<>();
3926	<	assertTrue(f2.cancel(true));
3927	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
3928	<	checkCompletedWithWrappedCancellationException(g);
3929	<	}
3923	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3924	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3925	>	fun : funs) {
3926	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3927	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3928	>	CompletableFuture<?> dep = fun.apply(src);
3929	>	f.cancel(mayInterruptIfRunning);
3930	>	checkCancelled(f);
3931	>	checkCompletedWithWrappedCancellationException(src);
3932	>	checkCompletedWithWrappedCancellationException(dep);
3933	>	assertSame(resultOf(src), resultOf(dep));
3934	>	}
3935	>	}}
3936
3937		/**
3938	<	* thenComposeAsync result completes normally after normal
2808	<	* completion of source
3938	>	* Minimal completion stages throw UOE for most non-CompletionStage methods
3939		*/
3940	<	public void testThenComposeAsyncE() {
3941	<	CompletableFuture<Integer> f = new CompletableFuture<>();
3942	<	CompletableFutureInc r = new CompletableFutureInc();
3943	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
3944	<	f.complete(one);
3945	<	checkCompletedNormally(g, two);
3940	>	public void testMinimalCompletionStage_minimality() {
3941	>	if (!testImplementationDetails) return;
3942	>	Function<Method, String> toSignature =
3943	>	(method) -> method.getName() + Arrays.toString(method.getParameterTypes());
3944	>	Predicate<Method> isNotStatic =
3945	>	(method) -> (method.getModifiers() & Modifier.STATIC) == 0;
3946	>	List<Method> minimalMethods =
3947	>	Stream.of(Object.class, CompletionStage.class)
3948	>	.flatMap((klazz) -> Stream.of(klazz.getMethods()))
3949	>	.filter(isNotStatic)
3950	>	.collect(Collectors.toList());
3951	>	// Methods from CompletableFuture permitted NOT to throw UOE
3952	>	String[] signatureWhitelist = {
3953	>	"newIncompleteFuture[]",
3954	>	"defaultExecutor[]",
3955	>	"minimalCompletionStage[]",
3956	>	"copy[]",
3957	>	};
3958	>	Set<String> permittedMethodSignatures =
3959	>	Stream.concat(minimalMethods.stream().map(toSignature),
3960	>	Stream.of(signatureWhitelist))
3961	>	.collect(Collectors.toSet());
3962	>	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
3963	>	.filter(isNotStatic)
3964	>	.filter((method) -> !permittedMethodSignatures.contains(toSignature.apply(method)))
3965	>	.collect(Collectors.toList());
3966	>
3967	>	List<CompletionStage<Integer>> stages = new ArrayList<>();
3968	>	stages.add(new CompletableFuture<Integer>().minimalCompletionStage());
3969	>	stages.add(CompletableFuture.completedStage(1));
3970	>	stages.add(CompletableFuture.failedStage(new CFException()));
3971	>
3972	>	List<Method> bugs = new ArrayList<>();
3973	>	for (Method method : allMethods) {
3974	>	Class<?>[] parameterTypes = method.getParameterTypes();
3975	>	Object[] args = new Object[parameterTypes.length];
3976	>	// Manufacture boxed primitives for primitive params
3977	>	for (int i = 0; i < args.length; i++) {
3978	>	Class<?> type = parameterTypes[i];
3979	>	if (parameterTypes[i] == boolean.class)
3980	>	args[i] = false;
3981	>	else if (parameterTypes[i] == int.class)
3982	>	args[i] = 0;
3983	>	else if (parameterTypes[i] == long.class)
3984	>	args[i] = 0L;
3985	>	}
3986	>	for (CompletionStage<Integer> stage : stages) {
3987	>	try {
3988	>	method.invoke(stage, args);
3989	>	bugs.add(method);
3990	>	}
3991	>	catch (java.lang.reflect.InvocationTargetException expected) {
3992	>	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
3993	>	bugs.add(method);
3994	>	// expected.getCause().printStackTrace();
3995	>	}
3996	>	}
3997	>	catch (ReflectiveOperationException bad) { throw new Error(bad); }
3998	>	}
3999	>	}
4000	>	if (!bugs.isEmpty())
4001	>	throw new Error("Methods did not throw UOE: " + bugs);
4002		}
4003
4004	<	/**
4005	<	* thenComposeAsync result completes exceptionally after
4006	<	* exceptional completion of source
4007	<	*/
4008	<	public void testThenComposeAsync2E() {
4009	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4010	<	CompletableFutureInc r = new CompletableFutureInc();
4011	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
4012	<	f.completeExceptionally(new CFException());
4013	<	checkCompletedWithWrappedCFException(g);
4014	<	}
4004	>	static class Monad {
4005	>	static class ZeroException extends RuntimeException {
4006	>	public ZeroException() { super("monadic zero"); }
4007	>	}
4008	>	// "return", "unit"
4009	>	static <T> CompletableFuture<T> unit(T value) {
4010	>	return completedFuture(value);
4011	>	}
4012	>	// monadic zero ?
4013	>	static <T> CompletableFuture<T> zero() {
4014	>	return failedFuture(new ZeroException());
4015	>	}
4016	>	// >=>
4017	>	static <T,U,V> Function<T, CompletableFuture<V>> compose
4018	>	(Function<T, CompletableFuture<U>> f,
4019	>	Function<U, CompletableFuture<V>> g) {
4020	>	return (x) -> f.apply(x).thenCompose(g);
4021	>	}
4022
4023	<	/**
4024	<	* thenComposeAsync result completes exceptionally if action does
4025	<	*/
4026	<	public void testThenComposeAsync3E() {
4027	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4028	<	FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
4029	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
4030	<	f.complete(one);
2838	<	checkCompletedWithWrappedCFException(g);
2839	<	}
4023	>	static void assertZero(CompletableFuture<?> f) {
4024	>	try {
4025	>	f.getNow(null);
4026	>	throw new AssertionFailedError("should throw");
4027	>	} catch (CompletionException success) {
4028	>	assertTrue(success.getCause() instanceof ZeroException);
4029	>	}
4030	>	}
4031
4032	<	/**
4033	<	* thenComposeAsync result completes exceptionally if source cancelled
4034	<	*/
4035	<	public void testThenComposeAsync4E() {
4036	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4037	<	CompletableFutureInc r = new CompletableFutureInc();
4038	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
4039	<	assertTrue(f.cancel(true));
4040	<	checkCompletedWithWrappedCancellationException(g);
4041	<	}
4032	>	static <T> void assertFutureEquals(CompletableFuture<T> f,
4033	>	CompletableFuture<T> g) {
4034	>	T fval = null, gval = null;
4035	>	Throwable fex = null, gex = null;
4036	>
4037	>	try { fval = f.get(); }
4038	>	catch (ExecutionException ex) { fex = ex.getCause(); }
4039	>	catch (Throwable ex) { fex = ex; }
4040	>
4041	>	try { gval = g.get(); }
4042	>	catch (ExecutionException ex) { gex = ex.getCause(); }
4043	>	catch (Throwable ex) { gex = ex; }
4044	>
4045	>	if (fex != null || gex != null)
4046	>	assertSame(fex.getClass(), gex.getClass());
4047	>	else
4048	>	assertEquals(fval, gval);
4049	>	}
4050
4051	<	// other static methods
4051	>	static class PlusFuture<T> extends CompletableFuture<T> {
4052	>	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4053	>	}
4054
4055	<	/**
4056	<	* allOf(no component futures) returns a future completed normally
4057	<	* with the value null
4058	<	*/
4059	<	public void testAllOf_empty() throws Exception {
4060	<	CompletableFuture<Void> f = CompletableFuture.allOf();
4061	<	checkCompletedNormally(f, null);
4055	>	/** Implements "monadic plus". */
4056	>	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
4057	>	CompletableFuture<? extends T> g) {
4058	>	PlusFuture<T> plus = new PlusFuture<T>();
4059	>	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
4060	>	try {
4061	>	if (ex == null) {
4062	>	if (plus.complete(result))
4063	>	if (plus.firstFailure.get() != null)
4064	>	plus.firstFailure.set(null);
4065	>	}
4066	>	else if (plus.firstFailure.compareAndSet(null, ex)) {
4067	>	if (plus.isDone())
4068	>	plus.firstFailure.set(null);
4069	>	}
4070	>	else {
4071	>	// first failure has precedence
4072	>	Throwable first = plus.firstFailure.getAndSet(null);
4073	>
4074	>	// may fail with "Self-suppression not permitted"
4075	>	try { first.addSuppressed(ex); }
4076	>	catch (Exception ignored) {}
4077	>
4078	>	plus.completeExceptionally(first);
4079	>	}
4080	>	} catch (Throwable unexpected) {
4081	>	plus.completeExceptionally(unexpected);
4082	>	}
4083	>	};
4084	>	f.whenComplete(action);
4085	>	g.whenComplete(action);
4086	>	return plus;
4087	>	}
4088		}
4089
4090		/**
4091	<	* allOf returns a future completed when all components complete
4091	>	* CompletableFuture is an additive monad - sort of.
4092	>	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
4093		*/
4094	<	public void testAllOf() throws Exception {
4095	<	for (int k = 1; k < 20; ++k) {
4096	<	CompletableFuture<Integer>[] fs = (CompletableFuture<Integer>[]) new CompletableFuture[k];
4097	<	for (int i = 0; i < k; ++i)
4098	<	fs[i] = new CompletableFuture<>();
4099	<	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
4100	<	for (int i = 0; i < k; ++i) {
4101	<	checkIncomplete(f);
4102	<	checkIncomplete(CompletableFuture.allOf(fs));
4103	<	fs[i].complete(one);
4104	<	}
4105	<	checkCompletedNormally(f, null);
4106	<	checkCompletedNormally(CompletableFuture.allOf(fs), null);
4094	>	public void testAdditiveMonad() throws Throwable {
4095	>	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
4096	>	CompletableFuture<Long> zero = Monad.zero();
4097	>
4098	>	// Some mutually non-commutative functions
4099	>	Function<Long, CompletableFuture<Long>> triple
4100	>	= (x) -> Monad.unit(3 * x);
4101	>	Function<Long, CompletableFuture<Long>> inc
4102	>	= (x) -> Monad.unit(x + 1);
4103	>
4104	>	// unit is a right identity: m >>= unit === m
4105	>	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
4106	>	inc.apply(5L));
4107	>	// unit is a left identity: (unit x) >>= f === f x
4108	>	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
4109	>	inc.apply(5L));
4110	>
4111	>	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4112	>	Monad.assertFutureEquals(
4113	>	unit.apply(5L).thenCompose(inc).thenCompose(triple),
4114	>	unit.apply(5L).thenCompose((x) -> inc.apply(x).thenCompose(triple)));
4115	>
4116	>	// The case for CompletableFuture as an additive monad is weaker...
4117	>
4118	>	// zero is a monadic zero
4119	>	Monad.assertZero(zero);
4120	>
4121	>	// left zero: zero >>= f === zero
4122	>	Monad.assertZero(zero.thenCompose(inc));
4123	>	// right zero: f >>= (\x -> zero) === zero
4124	>	Monad.assertZero(inc.apply(5L).thenCompose((x) -> zero));
4125	>
4126	>	// f plus zero === f
4127	>	Monad.assertFutureEquals(Monad.unit(5L),
4128	>	Monad.plus(Monad.unit(5L), zero));
4129	>	// zero plus f === f
4130	>	Monad.assertFutureEquals(Monad.unit(5L),
4131	>	Monad.plus(zero, Monad.unit(5L)));
4132	>	// zero plus zero === zero
4133	>	Monad.assertZero(Monad.plus(zero, zero));
4134	>	{
4135	>	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
4136	>	Monad.unit(8L));
4137	>	// non-determinism
4138	>	assertTrue(f.get() == 5L || f.get() == 8L);
4139		}
2880	–	}
4140
4141	<	/**
4142	<	* anyOf(no component futures) returns an incomplete future
4143	<	*/
4144	<	public void testAnyOf_empty() throws Exception {
4145	<	CompletableFuture<Object> f = CompletableFuture.anyOf();
4146	<	checkIncomplete(f);
4141	>	CompletableFuture<Long> godot = new CompletableFuture<>();
4142	>	// f plus godot === f (doesn't wait for godot)
4143	>	Monad.assertFutureEquals(Monad.unit(5L),
4144	>	Monad.plus(Monad.unit(5L), godot));
4145	>	// godot plus f === f (doesn't wait for godot)
4146	>	Monad.assertFutureEquals(Monad.unit(5L),
4147	>	Monad.plus(godot, Monad.unit(5L)));
4148	>	}
4149	>
4150	>	/** Test long recursive chains of CompletableFutures with cascading completions */
4151	>	public void testRecursiveChains() throws Throwable {
4152	>	for (ExecutionMode m : ExecutionMode.values())
4153	>	for (boolean addDeadEnds : new boolean[] { true, false })
4154	>	{
4155	>	final int val = 42;
4156	>	final int n = expensiveTests ? 1_000 : 2;
4157	>	CompletableFuture<Integer> head = new CompletableFuture<>();
4158	>	CompletableFuture<Integer> tail = head;
4159	>	for (int i = 0; i < n; i++) {
4160	>	if (addDeadEnds) m.thenApply(tail, v -> v + 1);
4161	>	tail = m.thenApply(tail, v -> v + 1);
4162	>	if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1);
4163	>	tail = m.applyToEither(tail, tail, v -> v + 1);
4164	>	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1);
4165	>	tail = m.thenCombine(tail, tail, (v, w) -> v + 1);
4166	>	}
4167	>	head.complete(val);
4168	>	assertEquals(val + 3 * n, (int) tail.join());
4169	>	}}
4170	>
4171	>	/**
4172	>	* A single CompletableFuture with many dependents.
4173	>	* A demo of scalability - runtime is O(n).
4174	>	*/
4175	>	public void testManyDependents() throws Throwable {
4176	>	final int n = expensiveTests ? 1_000_000 : 10;
4177	>	final CompletableFuture<Void> head = new CompletableFuture<>();
4178	>	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4179	>	final AtomicInteger count = new AtomicInteger(0);
4180	>	for (int i = 0; i < n; i++) {
4181	>	head.thenRun(() -> count.getAndIncrement());
4182	>	head.thenAccept((x) -> count.getAndIncrement());
4183	>	head.thenApply((x) -> count.getAndIncrement());
4184	>
4185	>	head.runAfterBoth(complete, () -> count.getAndIncrement());
4186	>	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
4187	>	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
4188	>	complete.runAfterBoth(head, () -> count.getAndIncrement());
4189	>	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
4190	>	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4191	>
4192	>	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4193	>	head.acceptEither(new CompletableFuture<Void>(), (x) -> count.getAndIncrement());
4194	>	head.applyToEither(new CompletableFuture<Void>(), (x) -> count.getAndIncrement());
4195	>	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4196	>	new CompletableFuture<Void>().acceptEither(head, (x) -> count.getAndIncrement());
4197	>	new CompletableFuture<Void>().applyToEither(head, (x) -> count.getAndIncrement());
4198	>	}
4199	>	head.complete(null);
4200	>	assertEquals(5 * 3 * n, count.get());
4201		}
4202
4203	<	/**
4204	<	* anyOf returns a future completed when any components complete
4205	<	*/
4206	<	public void testAnyOf_normal() throws Exception {
4207	<	for (int k = 0; k < 10; ++k) {
4208	<	CompletableFuture[] fs = new CompletableFuture[k];
4209	<	for (int i = 0; i < k; ++i)
4210	<	fs[i] = new CompletableFuture<>();
4211	<	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
4212	<	checkIncomplete(f);
4213	<	for (int i = 0; i < k; ++i) {
4214	<	fs[i].complete(one);
4215	<	checkCompletedNormally(f, one);
4216	<	checkCompletedNormally(CompletableFuture.anyOf(fs), one);
4217	<	}
4203	>	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4204	>	public void testCoCompletionGarbageRetention() throws Throwable {
4205	>	final int n = expensiveTests ? 1_000_000 : 10;
4206	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4207	>	CompletableFuture<Integer> f;
4208	>	for (int i = 0; i < n; i++) {
4209	>	f = new CompletableFuture<>();
4210	>	f.runAfterEither(incomplete, () -> {});
4211	>	f.complete(null);
4212	>
4213	>	f = new CompletableFuture<>();
4214	>	f.acceptEither(incomplete, (x) -> {});
4215	>	f.complete(null);
4216	>
4217	>	f = new CompletableFuture<>();
4218	>	f.applyToEither(incomplete, (x) -> x);
4219	>	f.complete(null);
4220	>
4221	>	f = new CompletableFuture<>();
4222	>	CompletableFuture.anyOf(new CompletableFuture<?>[] { f, incomplete });
4223	>	f.complete(null);
4224		}
2906	–	}
4225
4226	<	/**
4227	<	* anyOf result completes exceptionally when any component does.
4228	<	*/
4229	<	public void testAnyOf_exceptional() throws Exception {
4230	<	for (int k = 0; k < 10; ++k) {
4231	<	CompletableFuture[] fs = new CompletableFuture[k];
4232	<	for (int i = 0; i < k; ++i)
4233	<	fs[i] = new CompletableFuture<>();
4234	<	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
4235	<	checkIncomplete(f);
4236	<	for (int i = 0; i < k; ++i) {
4237	<	fs[i].completeExceptionally(new CFException());
4238	<	checkCompletedWithWrappedCFException(f);
4239	<	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
4240	<	}
4226	>	for (int i = 0; i < n; i++) {
4227	>	f = new CompletableFuture<>();
4228	>	incomplete.runAfterEither(f, () -> {});
4229	>	f.complete(null);
4230	>
4231	>	f = new CompletableFuture<>();
4232	>	incomplete.acceptEither(f, (x) -> {});
4233	>	f.complete(null);
4234	>
4235	>	f = new CompletableFuture<>();
4236	>	incomplete.applyToEither(f, (x) -> x);
4237	>	f.complete(null);
4238	>
4239	>	f = new CompletableFuture<>();
4240	>	CompletableFuture.anyOf(new CompletableFuture<?>[] { incomplete, f });
4241	>	f.complete(null);
4242		}
4243		}
4244
4245		/**
4246	<	* Completion methods throw NullPointerException with null arguments
4247	<	*/
4248	<	public void testNPE() {
4249	<	CompletableFuture<Integer> f = new CompletableFuture<>();
4250	<	CompletableFuture<Integer> g = new CompletableFuture<>();
4251	<	CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
4252	<	CompletableFuture<?> h;
4253	<	ThreadExecutor exec = new ThreadExecutor();
4254	<
4255	<	Runnable[] throwingActions = {
4256	<	() -> { CompletableFuture.supplyAsync(null); },
4257	<	() -> { CompletableFuture.supplyAsync(null, exec); },
4258	<	() -> { CompletableFuture.supplyAsync(supplyOne, null); },
4259	<
4260	<	() -> { CompletableFuture.runAsync(null); },
4261	<	() -> { CompletableFuture.runAsync(null, exec); },
4262	<	() -> { CompletableFuture.runAsync(() -> {}, null); },
4263	<
4264	<	() -> { f.completeExceptionally(null); },
4265	<
4266	<	() -> { f.thenApply(null); },
4267	<	() -> { f.thenApplyAsync(null); },
4268	<	() -> { f.thenApplyAsync((x) -> x, null); },
4269	<	() -> { f.thenApplyAsync(null, exec); },
4270	<
4271	<	() -> { f.thenAccept(null); },
4272	<	() -> { f.thenAcceptAsync(null); },
4273	<	() -> { f.thenAcceptAsync((x) -> { ; }, null); },
4274	<	() -> { f.thenAcceptAsync(null, exec); },
4275	<
4276	<	() -> { f.thenRun(null); },
4277	<	() -> { f.thenRunAsync(null); },
4278	<	() -> { f.thenRunAsync(() -> { ; }, null); },
4279	<	() -> { f.thenRunAsync(null, exec); },
4280	<
4281	<	() -> { f.thenCombine(g, null); },
4282	<	() -> { f.thenCombineAsync(g, null); },
4283	<	() -> { f.thenCombineAsync(g, null, exec); },
4284	<	() -> { f.thenCombine(nullFuture, (x, y) -> x); },
4285	<	() -> { f.thenCombineAsync(nullFuture, (x, y) -> x); },
4286	<	() -> { f.thenCombineAsync(nullFuture, (x, y) -> x, exec); },
4287	<	() -> { f.thenCombineAsync(g, (x, y) -> x, null); },
4288	<
4289	<	() -> { f.thenAcceptBoth(g, null); },
4290	<	() -> { f.thenAcceptBothAsync(g, null); },
4291	<	() -> { f.thenAcceptBothAsync(g, null, exec); },
4292	<	() -> { f.thenAcceptBoth(nullFuture, (x, y) -> {}); },
4293	<	() -> { f.thenAcceptBothAsync(nullFuture, (x, y) -> {}); },
4294	<	() -> { f.thenAcceptBothAsync(nullFuture, (x, y) -> {}, exec); },
4295	<	() -> { f.thenAcceptBothAsync(g, (x, y) -> {}, null); },
4296	<
4297	<	() -> { f.runAfterBoth(g, null); },
4298	<	() -> { f.runAfterBothAsync(g, null); },
4299	<	() -> { f.runAfterBothAsync(g, null, exec); },
4300	<	() -> { f.runAfterBoth(nullFuture, () -> {}); },
4301	<	() -> { f.runAfterBothAsync(nullFuture, () -> {}); },
4302	<	() -> { f.runAfterBothAsync(nullFuture, () -> {}, exec); },
4303	<	() -> { f.runAfterBothAsync(g, () -> {}, null); },
4304	<
4305	<	() -> { f.applyToEither(g, null); },
4306	<	() -> { f.applyToEitherAsync(g, null); },
4307	<	() -> { f.applyToEitherAsync(g, null, exec); },
4308	<	() -> { f.applyToEither(nullFuture, (x) -> x); },
4309	<	() -> { f.applyToEitherAsync(nullFuture, (x) -> x); },
4310	<	() -> { f.applyToEitherAsync(nullFuture, (x) -> x, exec); },
4311	<	() -> { f.applyToEitherAsync(g, (x) -> x, null); },
4312	<
4313	<	() -> { f.acceptEither(g, null); },
4314	<	() -> { f.acceptEitherAsync(g, null); },
4315	<	() -> { f.acceptEitherAsync(g, null, exec); },
4316	<	() -> { f.acceptEither(nullFuture, (x) -> {}); },
2998	<	() -> { f.acceptEitherAsync(nullFuture, (x) -> {}); },
2999	<	() -> { f.acceptEitherAsync(nullFuture, (x) -> {}, exec); },
3000	<	() -> { f.acceptEitherAsync(g, (x) -> {}, null); },
3001	<
3002	<	() -> { f.runAfterEither(g, null); },
3003	<	() -> { f.runAfterEitherAsync(g, null); },
3004	<	() -> { f.runAfterEitherAsync(g, null, exec); },
3005	<	() -> { f.runAfterEither(nullFuture, () -> {}); },
3006	<	() -> { f.runAfterEitherAsync(nullFuture, () -> {}); },
3007	<	() -> { f.runAfterEitherAsync(nullFuture, () -> {}, exec); },
3008	<	() -> { f.runAfterEitherAsync(g, () -> {}, null); },
3009	<
3010	<	() -> { f.thenCompose(null); },
3011	<	() -> { f.thenComposeAsync(null); },
3012	<	() -> { f.thenComposeAsync(new CompletableFutureInc(), null); },
3013	<	() -> { f.thenComposeAsync(null, exec); },
3014	<
3015	<	() -> { f.exceptionally(null); },
3016	<
3017	<	() -> { f.handle(null); },
3018	<
3019	<	() -> { CompletableFuture.allOf((CompletableFuture<?>)null); },
3020	<	() -> { CompletableFuture.allOf((CompletableFuture<?>[])null); },
3021	<	() -> { CompletableFuture.allOf(f, null); },
3022	<	() -> { CompletableFuture.allOf(null, f); },
3023	<
3024	<	() -> { CompletableFuture.anyOf((CompletableFuture<?>)null); },
3025	<	() -> { CompletableFuture.anyOf((CompletableFuture<?>[])null); },
3026	<	() -> { CompletableFuture.anyOf(f, null); },
3027	<	() -> { CompletableFuture.anyOf(null, f); },
3028	<	};
3029	<
3030	<	assertThrows(NullPointerException.class, throwingActions);
3031	<	assertEquals(0, exec.count.get());
3032	<	}
4246	>	* Checks for garbage retention with anyOf.
4247	>	* Following used to fail with OOME:
4248	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testAnyOfGarbageRetention tck
4249	>	*/
4250	>	public void testAnyOfGarbageRetention() throws Throwable {
4251	>	for (Integer v : new Integer[] { 1, null })
4252	>	{
4253	>	final int n = expensiveTests ? 100_000 : 10;
4254	>	CompletableFuture<Integer>[] fs
4255	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4256	>	for (int i = 0; i < fs.length; i++)
4257	>	fs[i] = new CompletableFuture<>();
4258	>	fs[fs.length - 1].complete(v);
4259	>	for (int i = 0; i < n; i++)
4260	>	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4261	>	}}
4262	>
4263	>	/**
4264	>	* Checks for garbage retention with allOf.
4265	>	*
4266	>	* As of 2016-07, fails with OOME:
4267	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4268	>	*/
4269	>	public void testCancelledAllOfGarbageRetention() throws Throwable {
4270	>	final int n = expensiveTests ? 100_000 : 10;
4271	>	CompletableFuture<Integer>[] fs
4272	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4273	>	for (int i = 0; i < fs.length; i++)
4274	>	fs[i] = new CompletableFuture<>();
4275	>	for (int i = 0; i < n; i++)
4276	>	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4277	>	}
4278	>
4279	>	/**
4280	>	* Checks for garbage retention when a dependent future is
4281	>	* cancelled and garbage-collected.
4282	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4283	>	*
4284	>	* As of 2016-07, fails with OOME:
4285	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4286	>	*/
4287	>	public void testCancelledGarbageRetention() throws Throwable {
4288	>	final int n = expensiveTests ? 100_000 : 10;
4289	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4290	>	for (int i = 0; i < n; i++)
4291	>	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4292	>	}
4293	>
4294	>	//     static <U> U join(CompletionStage<U> stage) {
4295	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4296	>	//         stage.whenComplete((v, ex) -> {
4297	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4298	>	//         });
4299	>	//         return f.join();
4300	>	//     }
4301	>
4302	>	//     static <U> boolean isDone(CompletionStage<U> stage) {
4303	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4304	>	//         stage.whenComplete((v, ex) -> {
4305	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4306	>	//         });
4307	>	//         return f.isDone();
4308	>	//     }
4309	>
4310	>	//     static <U> U join2(CompletionStage<U> stage) {
4311	>	//         return stage.toCompletableFuture().copy().join();
4312	>	//     }
4313	>
4314	>	//     static <U> boolean isDone2(CompletionStage<U> stage) {
4315	>	//         return stage.toCompletableFuture().copy().isDone();
4316	>	//     }
4317
4318		}

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