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

Comparing jsr166/src/test/tck/CompletableFutureTest.java (file contents):
Revision 1.9 by dl, Wed Mar 27 19:45:42 2013 UTC vs.
Revision 1.186 by jsr166, Mon Jul 3 20:55:45 2017 UTC

#	Line 5 | Line 5
5		* http://creativecommons.org/publicdomain/zero/1.0/
6		*/
7
8	<	import junit.framework.*;
8	>	import static java.util.concurrent.TimeUnit.MILLISECONDS;
9	>	import static java.util.concurrent.TimeUnit.SECONDS;
10	>	import static java.util.concurrent.CompletableFuture.completedFuture;
11	>	import static java.util.concurrent.CompletableFuture.failedFuture;
12	>
13	>	import java.lang.reflect.Method;
14	>	import java.lang.reflect.Modifier;
15	>
16	>	import java.util.stream.Collectors;
17	>	import java.util.stream.Stream;
18	>
19	>	import java.util.ArrayList;
20	>	import java.util.Arrays;
21	>	import java.util.List;
22	>	import java.util.Objects;
23	>	import java.util.Set;
24		import java.util.concurrent.Callable;
10	–	import java.util.concurrent.Executor;
11	–	import java.util.concurrent.ExecutorService;
12	–	import java.util.concurrent.Executors;
25		import java.util.concurrent.CancellationException;
14	–	import java.util.concurrent.CountDownLatch;
15	–	import java.util.concurrent.ExecutionException;
16	–	import java.util.concurrent.Future;
26		import java.util.concurrent.CompletableFuture;
27		import java.util.concurrent.CompletionException;
28	+	import java.util.concurrent.CompletionStage;
29	+	import java.util.concurrent.ExecutionException;
30	+	import java.util.concurrent.Executor;
31	+	import java.util.concurrent.ForkJoinPool;
32	+	import java.util.concurrent.ForkJoinTask;
33	+	import java.util.concurrent.RejectedExecutionException;
34		import java.util.concurrent.TimeoutException;
35		import java.util.concurrent.atomic.AtomicInteger;
36	<	import static java.util.concurrent.TimeUnit.MILLISECONDS;
22	<	import static java.util.concurrent.TimeUnit.SECONDS;
23	<	import java.util.*;
24	<	import java.util.function.Supplier;
25	<	import java.util.function.Consumer;
36	>	import java.util.concurrent.atomic.AtomicReference;
37		import java.util.function.BiConsumer;
27	–	import java.util.function.Function;
38		import java.util.function.BiFunction;
39	+	import java.util.function.Consumer;
40	+	import java.util.function.Function;
41	+	import java.util.function.Predicate;
42	+	import java.util.function.Supplier;
43	+
44	+	import junit.framework.AssertionFailedError;
45	+	import junit.framework.Test;
46	+	import junit.framework.TestSuite;
47
48		public class CompletableFutureTest extends JSR166TestCase {
49
50		public static void main(String[] args) {
51	<	junit.textui.TestRunner.run(suite());
51	>	main(suite(), args);
52		}
53		public static Test suite() {
54		return new TestSuite(CompletableFutureTest.class);
#	Line 41 | Line 59 | public class CompletableFutureTest exten
59		void checkIncomplete(CompletableFuture<?> f) {
60		assertFalse(f.isDone());
61		assertFalse(f.isCancelled());
62	<	assertTrue(f.toString().contains("[Not completed]"));
62	>	assertTrue(f.toString().contains("Not completed"));
63		try {
64		assertNull(f.getNow(null));
65		} catch (Throwable fail) { threadUnexpectedException(fail); }
66		try {
67	<	f.get(0L, SECONDS);
67	>	f.get(randomExpiredTimeout(), randomTimeUnit());
68		shouldThrow();
69		}
70		catch (TimeoutException success) {}
71		catch (Throwable fail) { threadUnexpectedException(fail); }
72		}
73
74	<	void checkCompletedNormally(CompletableFuture<?> f, Object value) {
74	>	<T> void checkCompletedNormally(CompletableFuture<T> f, T value) {
75	>	checkTimedGet(f, value);
76	>
77		try {
78		assertEquals(value, f.join());
59	–	} catch (Throwable fail) { threadUnexpectedException(fail); }
60	–	try {
79		assertEquals(value, f.getNow(null));
62	–	} catch (Throwable fail) { threadUnexpectedException(fail); }
63	–	try {
80		assertEquals(value, f.get());
81		} catch (Throwable fail) { threadUnexpectedException(fail); }
66	–	try {
67	–	assertEquals(value, f.get(0L, SECONDS));
68	–	} catch (Throwable fail) { threadUnexpectedException(fail); }
82		assertTrue(f.isDone());
83		assertFalse(f.isCancelled());
84	+	assertFalse(f.isCompletedExceptionally());
85		assertTrue(f.toString().contains("[Completed normally]"));
86		}
87
88	<	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
88	>	/**
89	>	* Returns the "raw" internal exceptional completion of f,
90	>	* without any additional wrapping with CompletionException.
91	>	*/
92	>	Throwable exceptionalCompletion(CompletableFuture<?> f) {
93	>	// handle (and whenComplete and exceptionally) can distinguish
94	>	// between "direct" and "wrapped" exceptional completion
95	>	return f.handle((u, t) -> t).join();
96	>	}
97	>
98	>	void checkCompletedExceptionally(CompletableFuture<?> f,
99	>	boolean wrapped,
100	>	Consumer<Throwable> checker) {
101	>	Throwable cause = exceptionalCompletion(f);
102	>	if (wrapped) {
103	>	assertTrue(cause instanceof CompletionException);
104	>	cause = cause.getCause();
105	>	}
106	>	checker.accept(cause);
107	>
108	>	long startTime = System.nanoTime();
109	>	try {
110	>	f.get(LONG_DELAY_MS, MILLISECONDS);
111	>	shouldThrow();
112	>	} catch (ExecutionException success) {
113	>	assertSame(cause, success.getCause());
114	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
115	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
116	>
117		try {
118		f.join();
119		shouldThrow();
120		} catch (CompletionException success) {
121	<	assertTrue(success.getCause() instanceof CFException);
122	<	}
121	>	assertSame(cause, success.getCause());
122	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
123	>
124		try {
125		f.getNow(null);
126		shouldThrow();
127		} catch (CompletionException success) {
128	<	assertTrue(success.getCause() instanceof CFException);
86	<	}
87	<	try {
88	<	f.get();
89	<	shouldThrow();
90	<	} catch (ExecutionException success) {
91	<	assertTrue(success.getCause() instanceof CFException);
128	>	assertSame(cause, success.getCause());
129		} catch (Throwable fail) { threadUnexpectedException(fail); }
130	+
131		try {
132	<	f.get(0L, SECONDS);
132	>	f.get();
133		shouldThrow();
134		} catch (ExecutionException success) {
135	<	assertTrue(success.getCause() instanceof CFException);
135	>	assertSame(cause, success.getCause());
136		} catch (Throwable fail) { threadUnexpectedException(fail); }
137	<	assertTrue(f.isDone());
137	>
138		assertFalse(f.isCancelled());
139	+	assertTrue(f.isDone());
140	+	assertTrue(f.isCompletedExceptionally());
141	+	assertTrue(f.toString().contains("[Completed exceptionally]"));
142	+	}
143	+
144	+	void checkCompletedWithWrappedCFException(CompletableFuture<?> f) {
145	+	checkCompletedExceptionally(f, true,
146	+	t -> assertTrue(t instanceof CFException));
147	+	}
148	+
149	+	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
150	+	checkCompletedExceptionally(f, true,
151	+	t -> assertTrue(t instanceof CancellationException));
152	+	}
153	+
154	+	void checkCompletedWithTimeoutException(CompletableFuture<?> f) {
155	+	checkCompletedExceptionally(f, false,
156	+	t -> assertTrue(t instanceof TimeoutException));
157	+	}
158	+
159	+	void checkCompletedWithWrappedException(CompletableFuture<?> f,
160	+	Throwable ex) {
161	+	checkCompletedExceptionally(f, true, t -> assertSame(t, ex));
162	+	}
163	+
164	+	void checkCompletedExceptionally(CompletableFuture<?> f, Throwable ex) {
165	+	checkCompletedExceptionally(f, false, t -> assertSame(t, ex));
166		}
167
168		void checkCancelled(CompletableFuture<?> f) {
169	+	long startTime = System.nanoTime();
170		try {
171	<	f.join();
106	<	shouldThrow();
107	<	} catch (CancellationException success) {}
108	<	try {
109	<	f.getNow(null);
110	<	shouldThrow();
111	<	} catch (CancellationException success) {}
112	<	try {
113	<	f.get();
114	<	shouldThrow();
115	<	} catch (CancellationException success) {
116	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
117	<	try {
118	<	f.get(0L, SECONDS);
171	>	f.get(LONG_DELAY_MS, MILLISECONDS);
172		shouldThrow();
173		} catch (CancellationException success) {
174		} catch (Throwable fail) { threadUnexpectedException(fail); }
175	<	assertTrue(f.isDone());
123	<	assertTrue(f.isCancelled());
124	<	}
175	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
176
126	–	void checkCompletedWithWrappedCancellationException(CompletableFuture<?> f) {
177		try {
178		f.join();
179		shouldThrow();
180	<	} catch (CompletionException success) {
131	<	assertTrue(success.getCause() instanceof CancellationException);
132	<	}
180	>	} catch (CancellationException success) {}
181		try {
182		f.getNow(null);
183		shouldThrow();
184	<	} catch (CompletionException success) {
137	<	assertTrue(success.getCause() instanceof CancellationException);
138	<	}
184	>	} catch (CancellationException success) {}
185		try {
186		f.get();
187		shouldThrow();
188	<	} catch (ExecutionException success) {
143	<	assertTrue(success.getCause() instanceof CancellationException);
144	<	} catch (Throwable fail) { threadUnexpectedException(fail); }
145	<	try {
146	<	f.get(0L, SECONDS);
147	<	shouldThrow();
148	<	} catch (ExecutionException success) {
149	<	assertTrue(success.getCause() instanceof CancellationException);
188	>	} catch (CancellationException success) {
189		} catch (Throwable fail) { threadUnexpectedException(fail); }
190	+
191	+	assertTrue(exceptionalCompletion(f) instanceof CancellationException);
192	+
193		assertTrue(f.isDone());
194	<	assertFalse(f.isCancelled());
194	>	assertTrue(f.isCompletedExceptionally());
195	>	assertTrue(f.isCancelled());
196	>	assertTrue(f.toString().contains("[Completed exceptionally]"));
197		}
198
199		/**
#	Line 157 | Line 201 | public class CompletableFutureTest exten
201		* by methods isDone, isCancelled, and getNow
202		*/
203		public void testConstructor() {
204	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
204	>	CompletableFuture<Integer> f = new CompletableFuture<>();
205		checkIncomplete(f);
206		}
207
#	Line 166 | Line 210 | public class CompletableFutureTest exten
210		* isCancelled, join, get, and getNow
211		*/
212		public void testComplete() {
213	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
213	>	for (Integer v1 : new Integer[] { 1, null })
214	>	{
215	>	CompletableFuture<Integer> f = new CompletableFuture<>();
216		checkIncomplete(f);
217	<	f.complete(one);
218	<	checkCompletedNormally(f, one);
219	<	}
217	>	assertTrue(f.complete(v1));
218	>	assertFalse(f.complete(v1));
219	>	checkCompletedNormally(f, v1);
220	>	}}
221
222		/**
223		* completeExceptionally completes exceptionally, as indicated by
224		* methods isDone, isCancelled, join, get, and getNow
225		*/
226		public void testCompleteExceptionally() {
227	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
227	>	CompletableFuture<Integer> f = new CompletableFuture<>();
228	>	CFException ex = new CFException();
229		checkIncomplete(f);
230	<	f.completeExceptionally(new CFException());
231	<	checkCompletedWithWrappedCFException(f);
230	>	f.completeExceptionally(ex);
231	>	checkCompletedExceptionally(f, ex);
232		}
233
234		/**
#	Line 188 | Line 236 | public class CompletableFutureTest exten
236		* methods isDone, isCancelled, join, get, and getNow
237		*/
238		public void testCancel() {
239	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
239	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
240	>	{
241	>	CompletableFuture<Integer> f = new CompletableFuture<>();
242		checkIncomplete(f);
243	<	assertTrue(f.cancel(true));
243	>	assertTrue(f.cancel(mayInterruptIfRunning));
244	>	assertTrue(f.cancel(mayInterruptIfRunning));
245	>	assertTrue(f.cancel(!mayInterruptIfRunning));
246		checkCancelled(f);
247	<	}
247	>	}}
248
249		/**
250		* obtrudeValue forces completion with given value
251		*/
252		public void testObtrudeValue() {
253	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
253	>	CompletableFuture<Integer> f = new CompletableFuture<>();
254		checkIncomplete(f);
255	<	f.complete(one);
255	>	assertTrue(f.complete(one));
256		checkCompletedNormally(f, one);
257		f.obtrudeValue(three);
258		checkCompletedNormally(f, three);
259		f.obtrudeValue(two);
260		checkCompletedNormally(f, two);
261	<	f = new CompletableFuture<Integer>();
261	>	f = new CompletableFuture<>();
262		f.obtrudeValue(three);
263		checkCompletedNormally(f, three);
264	<	f = new CompletableFuture<Integer>();
264	>	f.obtrudeValue(null);
265	>	checkCompletedNormally(f, null);
266	>	f = new CompletableFuture<>();
267		f.completeExceptionally(new CFException());
268		f.obtrudeValue(four);
269		checkCompletedNormally(f, four);
#	Line 219 | Line 273 | public class CompletableFutureTest exten
273		* obtrudeException forces completion with given exception
274		*/
275		public void testObtrudeException() {
276	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
277	<	checkIncomplete(f);
278	<	f.complete(one);
279	<	checkCompletedNormally(f, one);
280	<	f.obtrudeException(new CFException());
281	<	checkCompletedWithWrappedCFException(f);
282	<	f = new CompletableFuture<Integer>();
283	<	f.obtrudeException(new CFException());
284	<	checkCompletedWithWrappedCFException(f);
285	<	f = new CompletableFuture<Integer>();
276	>	for (Integer v1 : new Integer[] { 1, null })
277	>	{
278	>	CFException ex;
279	>	CompletableFuture<Integer> f;
280	>
281	>	f = new CompletableFuture<>();
282	>	assertTrue(f.complete(v1));
283	>	for (int i = 0; i < 2; i++) {
284	>	f.obtrudeException(ex = new CFException());
285	>	checkCompletedExceptionally(f, ex);
286	>	}
287	>
288	>	f = new CompletableFuture<>();
289	>	for (int i = 0; i < 2; i++) {
290	>	f.obtrudeException(ex = new CFException());
291	>	checkCompletedExceptionally(f, ex);
292	>	}
293	>
294	>	f = new CompletableFuture<>();
295	>	f.completeExceptionally(ex = new CFException());
296	>	f.obtrudeValue(v1);
297	>	checkCompletedNormally(f, v1);
298	>	f.obtrudeException(ex = new CFException());
299	>	checkCompletedExceptionally(f, ex);
300		f.completeExceptionally(new CFException());
301	<	f.obtrudeValue(four);
302	<	checkCompletedNormally(f, four);
303	<	f.obtrudeException(new CFException());
304	<	checkCompletedWithWrappedCFException(f);
237	<	}
301	>	checkCompletedExceptionally(f, ex);
302	>	assertFalse(f.complete(v1));
303	>	checkCompletedExceptionally(f, ex);
304	>	}}
305
306		/**
307		* getNumberOfDependents returns number of dependent tasks
308		*/
309		public void testGetNumberOfDependents() {
310	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
311	<	assertEquals(f.getNumberOfDependents(), 0);
312	<	CompletableFuture g = f.thenRun(new Noop());
313	<	assertEquals(f.getNumberOfDependents(), 1);
314	<	assertEquals(g.getNumberOfDependents(), 0);
315	<	CompletableFuture h = f.thenRun(new Noop());
316	<	assertEquals(f.getNumberOfDependents(), 2);
317	<	f.complete(1);
310	>	for (ExecutionMode m : ExecutionMode.values())
311	>	for (Integer v1 : new Integer[] { 1, null })
312	>	{
313	>	CompletableFuture<Integer> f = new CompletableFuture<>();
314	>	assertEquals(0, f.getNumberOfDependents());
315	>	final CompletableFuture<Void> g = m.thenRun(f, new Noop(m));
316	>	assertEquals(1, f.getNumberOfDependents());
317	>	assertEquals(0, g.getNumberOfDependents());
318	>	final CompletableFuture<Void> h = m.thenRun(f, new Noop(m));
319	>	assertEquals(2, f.getNumberOfDependents());
320	>	assertEquals(0, h.getNumberOfDependents());
321	>	assertTrue(f.complete(v1));
322		checkCompletedNormally(g, null);
323	<	assertEquals(f.getNumberOfDependents(), 0);
324	<	assertEquals(g.getNumberOfDependents(), 0);
325	<	}
326	<
323	>	checkCompletedNormally(h, null);
324	>	assertEquals(0, f.getNumberOfDependents());
325	>	assertEquals(0, g.getNumberOfDependents());
326	>	assertEquals(0, h.getNumberOfDependents());
327	>	}}
328
329		/**
330		* toString indicates current completion state
#	Line 263 | Line 335 | public class CompletableFutureTest exten
335		f = new CompletableFuture<String>();
336		assertTrue(f.toString().contains("[Not completed]"));
337
338	<	f.complete("foo");
338	>	assertTrue(f.complete("foo"));
339		assertTrue(f.toString().contains("[Completed normally]"));
340
341		f = new CompletableFuture<String>();
342	<	f.completeExceptionally(new IndexOutOfBoundsException());
342	>	assertTrue(f.completeExceptionally(new IndexOutOfBoundsException()));
343		assertTrue(f.toString().contains("[Completed exceptionally]"));
344	+
345	+	for (boolean mayInterruptIfRunning : new boolean[] { true, false }) {
346	+	f = new CompletableFuture<String>();
347	+	assertTrue(f.cancel(mayInterruptIfRunning));
348	+	assertTrue(f.toString().contains("[Completed exceptionally]"));
349	+	}
350		}
351
352		/**
353	<	* completedFuture returns a completed CompletableFuture with give value
353	>	* completedFuture returns a completed CompletableFuture with given value
354		*/
355		public void testCompletedFuture() {
356		CompletableFuture<String> f = CompletableFuture.completedFuture("test");
357		checkCompletedNormally(f, "test");
358		}
359
360	<	static final Supplier<Integer> supplyOne =
361	<	() -> Integer.valueOf(1);
362	<	static final Function<Integer, Integer> inc =
363	<	(Integer x) -> Integer.valueOf(x.intValue() + 1);
364	<	static final BiFunction<Integer, Integer, Integer> add =
365	<	(Integer x, Integer y) -> Integer.valueOf(x.intValue() + y.intValue());
366	<	static final class IncAction implements Consumer<Integer> {
367	<	int value;
368	<	public void accept(Integer x) { value = x.intValue() + 1; }
360	>	abstract static class CheckedAction {
361	>	int invocationCount = 0;
362	>	final ExecutionMode m;
363	>	CheckedAction(ExecutionMode m) { this.m = m; }
364	>	void invoked() {
365	>	m.checkExecutionMode();
366	>	assertEquals(0, invocationCount++);
367	>	}
368	>	void assertNotInvoked() { assertEquals(0, invocationCount); }
369	>	void assertInvoked() { assertEquals(1, invocationCount); }
370	>	}
371	>
372	>	abstract static class CheckedIntegerAction extends CheckedAction {
373	>	Integer value;
374	>	CheckedIntegerAction(ExecutionMode m) { super(m); }
375	>	void assertValue(Integer expected) {
376	>	assertInvoked();
377	>	assertEquals(expected, value);
378	>	}
379	>	}
380	>
381	>	static class IntegerSupplier extends CheckedAction
382	>	implements Supplier<Integer>
383	>	{
384	>	final Integer value;
385	>	IntegerSupplier(ExecutionMode m, Integer value) {
386	>	super(m);
387	>	this.value = value;
388	>	}
389	>	public Integer get() {
390	>	invoked();
391	>	return value;
392	>	}
393	>	}
394	>
395	>	// A function that handles and produces null values as well.
396	>	static Integer inc(Integer x) {
397	>	return (x == null) ? null : x + 1;
398	>	}
399	>
400	>	static class NoopConsumer extends CheckedIntegerAction
401	>	implements Consumer<Integer>
402	>	{
403	>	NoopConsumer(ExecutionMode m) { super(m); }
404	>	public void accept(Integer x) {
405	>	invoked();
406	>	value = x;
407	>	}
408		}
409	<	static final class AddAction implements BiConsumer<Integer, Integer> {
410	<	int value;
409	>
410	>	static class IncFunction extends CheckedIntegerAction
411	>	implements Function<Integer,Integer>
412	>	{
413	>	IncFunction(ExecutionMode m) { super(m); }
414	>	public Integer apply(Integer x) {
415	>	invoked();
416	>	return value = inc(x);
417	>	}
418	>	}
419	>
420	>	// Choose non-commutative actions for better coverage
421	>	// A non-commutative function that handles and produces null values as well.
422	>	static Integer subtract(Integer x, Integer y) {
423	>	return (x == null && y == null) ? null :
424	>	((x == null) ? 42 : x.intValue())
425	>	- ((y == null) ? 99 : y.intValue());
426	>	}
427	>
428	>	static class SubtractAction extends CheckedIntegerAction
429	>	implements BiConsumer<Integer, Integer>
430	>	{
431	>	SubtractAction(ExecutionMode m) { super(m); }
432		public void accept(Integer x, Integer y) {
433	<	value = x.intValue() + y.intValue();
433	>	invoked();
434	>	value = subtract(x, y);
435		}
436		}
437	<	static final class Noop implements Runnable {
438	<	boolean ran;
439	<	public void run() { ran = true; }
437	>
438	>	static class SubtractFunction extends CheckedIntegerAction
439	>	implements BiFunction<Integer, Integer, Integer>
440	>	{
441	>	SubtractFunction(ExecutionMode m) { super(m); }
442	>	public Integer apply(Integer x, Integer y) {
443	>	invoked();
444	>	return value = subtract(x, y);
445	>	}
446		}
447
448	<	static final class FailingSupplier implements Supplier<Integer> {
449	<	boolean ran;
450	<	public Integer get() { ran = true; throw new CFException(); }
448	>	static class Noop extends CheckedAction implements Runnable {
449	>	Noop(ExecutionMode m) { super(m); }
450	>	public void run() {
451	>	invoked();
452	>	}
453		}
454	<	static final class FailingConsumer implements Consumer<Integer> {
455	<	boolean ran;
456	<	public void accept(Integer x) { ran = true; throw new CFException(); }
454	>
455	>	static class FailingSupplier extends CheckedAction
456	>	implements Supplier<Integer>
457	>	{
458	>	final CFException ex;
459	>	FailingSupplier(ExecutionMode m) { super(m); ex = new CFException(); }
460	>	public Integer get() {
461	>	invoked();
462	>	throw ex;
463	>	}
464		}
465	<	static final class FailingBiConsumer implements BiConsumer<Integer, Integer> {
466	<	boolean ran;
467	<	public void accept(Integer x, Integer y) { ran = true; throw new CFException(); }
465	>
466	>	static class FailingConsumer extends CheckedIntegerAction
467	>	implements Consumer<Integer>
468	>	{
469	>	final CFException ex;
470	>	FailingConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
471	>	public void accept(Integer x) {
472	>	invoked();
473	>	value = x;
474	>	throw ex;
475	>	}
476		}
477	<	static final class FailingFunction implements Function<Integer, Integer> {
478	<	boolean ran;
479	<	public Integer apply(Integer x) { ran = true; throw new CFException(); }
477	>
478	>	static class FailingBiConsumer extends CheckedIntegerAction
479	>	implements BiConsumer<Integer, Integer>
480	>	{
481	>	final CFException ex;
482	>	FailingBiConsumer(ExecutionMode m) { super(m); ex = new CFException(); }
483	>	public void accept(Integer x, Integer y) {
484	>	invoked();
485	>	value = subtract(x, y);
486	>	throw ex;
487	>	}
488		}
489	<	static final class FailingBiFunction implements BiFunction<Integer, Integer, Integer> {
490	<	boolean ran;
491	<	public Integer apply(Integer x, Integer y) { ran = true; throw new CFException(); }
489	>
490	>	static class FailingFunction extends CheckedIntegerAction
491	>	implements Function<Integer, Integer>
492	>	{
493	>	final CFException ex;
494	>	FailingFunction(ExecutionMode m) { super(m); ex = new CFException(); }
495	>	public Integer apply(Integer x) {
496	>	invoked();
497	>	value = x;
498	>	throw ex;
499	>	}
500	>	}
501	>
502	>	static class FailingBiFunction extends CheckedIntegerAction
503	>	implements BiFunction<Integer, Integer, Integer>
504	>	{
505	>	final CFException ex;
506	>	FailingBiFunction(ExecutionMode m) { super(m); ex = new CFException(); }
507	>	public Integer apply(Integer x, Integer y) {
508	>	invoked();
509	>	value = subtract(x, y);
510	>	throw ex;
511	>	}
512		}
513	<	static final class FailingNoop implements Runnable {
514	<	boolean ran;
515	<	public void run() { ran = true; throw new CFException(); }
513	>
514	>	static class FailingRunnable extends CheckedAction implements Runnable {
515	>	final CFException ex;
516	>	FailingRunnable(ExecutionMode m) { super(m); ex = new CFException(); }
517	>	public void run() {
518	>	invoked();
519	>	throw ex;
520	>	}
521		}
522
523	<	static final class CompletableFutureInc implements Function<Integer, CompletableFuture<Integer>> {
523	>	static class CompletableFutureInc extends CheckedIntegerAction
524	>	implements Function<Integer, CompletableFuture<Integer>>
525	>	{
526	>	CompletableFutureInc(ExecutionMode m) { super(m); }
527		public CompletableFuture<Integer> apply(Integer x) {
528	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
529	<	f.complete(Integer.valueOf(x.intValue() + 1));
528	>	invoked();
529	>	value = x;
530	>	CompletableFuture<Integer> f = new CompletableFuture<>();
531	>	assertTrue(f.complete(inc(x)));
532		return f;
533		}
534		}
535
536	<	static final class FailingCompletableFutureFunction implements Function<Integer, CompletableFuture<Integer>> {
537	<	boolean ran;
536	>	static class FailingCompletableFutureFunction extends CheckedIntegerAction
537	>	implements Function<Integer, CompletableFuture<Integer>>
538	>	{
539	>	final CFException ex;
540	>	FailingCompletableFutureFunction(ExecutionMode m) { super(m); ex = new CFException(); }
541		public CompletableFuture<Integer> apply(Integer x) {
542	<	ran = true; throw new CFException();
542	>	invoked();
543	>	value = x;
544	>	throw ex;
545		}
546		}
547
548	<	// Used for explicit executor tests
549	<	static final class ThreadExecutor implements Executor {
548	>	static class CountingRejectingExecutor implements Executor {
549	>	final RejectedExecutionException ex = new RejectedExecutionException();
550	>	final AtomicInteger count = new AtomicInteger(0);
551		public void execute(Runnable r) {
552	<	new Thread(r).start();
552	>	count.getAndIncrement();
553	>	throw ex;
554		}
555		}
556
557	<	static final class ExceptionToInteger implements Function<Throwable, Integer> {
558	<	public Integer apply(Throwable x) { return Integer.valueOf(3); }
559	<	}
557	>	// Used for explicit executor tests
558	>	static final class ThreadExecutor implements Executor {
559	>	final AtomicInteger count = new AtomicInteger(0);
560	>	static final ThreadGroup tg = new ThreadGroup("ThreadExecutor");
561	>	static boolean startedCurrentThread() {
562	>	return Thread.currentThread().getThreadGroup() == tg;
563	>	}
564
565	<	static final class IntegerHandler implements BiFunction<Integer, Throwable, Integer> {
566	<	public Integer apply(Integer x, Throwable t) {
567	<	return (t == null) ? two : three;
565	>	public void execute(Runnable r) {
566	>	count.getAndIncrement();
567	>	new Thread(tg, r).start();
568		}
569		}
570
571	+	static final boolean defaultExecutorIsCommonPool
572	+	= ForkJoinPool.getCommonPoolParallelism() > 1;
573	+
574	+	/**
575	+	* Permits the testing of parallel code for the 3 different
576	+	* execution modes without copy/pasting all the test methods.
577	+	*/
578	+	enum ExecutionMode {
579	+	SYNC {
580	+	public void checkExecutionMode() {
581	+	assertFalse(ThreadExecutor.startedCurrentThread());
582	+	assertNull(ForkJoinTask.getPool());
583	+	}
584	+	public CompletableFuture<Void> runAsync(Runnable a) {
585	+	throw new UnsupportedOperationException();
586	+	}
587	+	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
588	+	throw new UnsupportedOperationException();
589	+	}
590	+	public <T> CompletableFuture<Void> thenRun
591	+	(CompletableFuture<T> f, Runnable a) {
592	+	return f.thenRun(a);
593	+	}
594	+	public <T> CompletableFuture<Void> thenAccept
595	+	(CompletableFuture<T> f, Consumer<? super T> a) {
596	+	return f.thenAccept(a);
597	+	}
598	+	public <T,U> CompletableFuture<U> thenApply
599	+	(CompletableFuture<T> f, Function<? super T,U> a) {
600	+	return f.thenApply(a);
601	+	}
602	+	public <T,U> CompletableFuture<U> thenCompose
603	+	(CompletableFuture<T> f,
604	+	Function<? super T,? extends CompletionStage<U>> a) {
605	+	return f.thenCompose(a);
606	+	}
607	+	public <T,U> CompletableFuture<U> handle
608	+	(CompletableFuture<T> f,
609	+	BiFunction<? super T,Throwable,? extends U> a) {
610	+	return f.handle(a);
611	+	}
612	+	public <T> CompletableFuture<T> whenComplete
613	+	(CompletableFuture<T> f,
614	+	BiConsumer<? super T,? super Throwable> a) {
615	+	return f.whenComplete(a);
616	+	}
617	+	public <T,U> CompletableFuture<Void> runAfterBoth
618	+	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
619	+	return f.runAfterBoth(g, a);
620	+	}
621	+	public <T,U> CompletableFuture<Void> thenAcceptBoth
622	+	(CompletableFuture<T> f,
623	+	CompletionStage<? extends U> g,
624	+	BiConsumer<? super T,? super U> a) {
625	+	return f.thenAcceptBoth(g, a);
626	+	}
627	+	public <T,U,V> CompletableFuture<V> thenCombine
628	+	(CompletableFuture<T> f,
629	+	CompletionStage<? extends U> g,
630	+	BiFunction<? super T,? super U,? extends V> a) {
631	+	return f.thenCombine(g, a);
632	+	}
633	+	public <T> CompletableFuture<Void> runAfterEither
634	+	(CompletableFuture<T> f,
635	+	CompletionStage<?> g,
636	+	java.lang.Runnable a) {
637	+	return f.runAfterEither(g, a);
638	+	}
639	+	public <T> CompletableFuture<Void> acceptEither
640	+	(CompletableFuture<T> f,
641	+	CompletionStage<? extends T> g,
642	+	Consumer<? super T> a) {
643	+	return f.acceptEither(g, a);
644	+	}
645	+	public <T,U> CompletableFuture<U> applyToEither
646	+	(CompletableFuture<T> f,
647	+	CompletionStage<? extends T> g,
648	+	Function<? super T,U> a) {
649	+	return f.applyToEither(g, a);
650	+	}
651	+	},
652	+
653	+	ASYNC {
654	+	public void checkExecutionMode() {
655	+	assertEquals(defaultExecutorIsCommonPool,
656	+	(ForkJoinPool.commonPool() == ForkJoinTask.getPool()));
657	+	}
658	+	public CompletableFuture<Void> runAsync(Runnable a) {
659	+	return CompletableFuture.runAsync(a);
660	+	}
661	+	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
662	+	return CompletableFuture.supplyAsync(a);
663	+	}
664	+	public <T> CompletableFuture<Void> thenRun
665	+	(CompletableFuture<T> f, Runnable a) {
666	+	return f.thenRunAsync(a);
667	+	}
668	+	public <T> CompletableFuture<Void> thenAccept
669	+	(CompletableFuture<T> f, Consumer<? super T> a) {
670	+	return f.thenAcceptAsync(a);
671	+	}
672	+	public <T,U> CompletableFuture<U> thenApply
673	+	(CompletableFuture<T> f, Function<? super T,U> a) {
674	+	return f.thenApplyAsync(a);
675	+	}
676	+	public <T,U> CompletableFuture<U> thenCompose
677	+	(CompletableFuture<T> f,
678	+	Function<? super T,? extends CompletionStage<U>> a) {
679	+	return f.thenComposeAsync(a);
680	+	}
681	+	public <T,U> CompletableFuture<U> handle
682	+	(CompletableFuture<T> f,
683	+	BiFunction<? super T,Throwable,? extends U> a) {
684	+	return f.handleAsync(a);
685	+	}
686	+	public <T> CompletableFuture<T> whenComplete
687	+	(CompletableFuture<T> f,
688	+	BiConsumer<? super T,? super Throwable> a) {
689	+	return f.whenCompleteAsync(a);
690	+	}
691	+	public <T,U> CompletableFuture<Void> runAfterBoth
692	+	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
693	+	return f.runAfterBothAsync(g, a);
694	+	}
695	+	public <T,U> CompletableFuture<Void> thenAcceptBoth
696	+	(CompletableFuture<T> f,
697	+	CompletionStage<? extends U> g,
698	+	BiConsumer<? super T,? super U> a) {
699	+	return f.thenAcceptBothAsync(g, a);
700	+	}
701	+	public <T,U,V> CompletableFuture<V> thenCombine
702	+	(CompletableFuture<T> f,
703	+	CompletionStage<? extends U> g,
704	+	BiFunction<? super T,? super U,? extends V> a) {
705	+	return f.thenCombineAsync(g, a);
706	+	}
707	+	public <T> CompletableFuture<Void> runAfterEither
708	+	(CompletableFuture<T> f,
709	+	CompletionStage<?> g,
710	+	java.lang.Runnable a) {
711	+	return f.runAfterEitherAsync(g, a);
712	+	}
713	+	public <T> CompletableFuture<Void> acceptEither
714	+	(CompletableFuture<T> f,
715	+	CompletionStage<? extends T> g,
716	+	Consumer<? super T> a) {
717	+	return f.acceptEitherAsync(g, a);
718	+	}
719	+	public <T,U> CompletableFuture<U> applyToEither
720	+	(CompletableFuture<T> f,
721	+	CompletionStage<? extends T> g,
722	+	Function<? super T,U> a) {
723	+	return f.applyToEitherAsync(g, a);
724	+	}
725	+	},
726	+
727	+	EXECUTOR {
728	+	public void checkExecutionMode() {
729	+	assertTrue(ThreadExecutor.startedCurrentThread());
730	+	}
731	+	public CompletableFuture<Void> runAsync(Runnable a) {
732	+	return CompletableFuture.runAsync(a, new ThreadExecutor());
733	+	}
734	+	public <U> CompletableFuture<U> supplyAsync(Supplier<U> a) {
735	+	return CompletableFuture.supplyAsync(a, new ThreadExecutor());
736	+	}
737	+	public <T> CompletableFuture<Void> thenRun
738	+	(CompletableFuture<T> f, Runnable a) {
739	+	return f.thenRunAsync(a, new ThreadExecutor());
740	+	}
741	+	public <T> CompletableFuture<Void> thenAccept
742	+	(CompletableFuture<T> f, Consumer<? super T> a) {
743	+	return f.thenAcceptAsync(a, new ThreadExecutor());
744	+	}
745	+	public <T,U> CompletableFuture<U> thenApply
746	+	(CompletableFuture<T> f, Function<? super T,U> a) {
747	+	return f.thenApplyAsync(a, new ThreadExecutor());
748	+	}
749	+	public <T,U> CompletableFuture<U> thenCompose
750	+	(CompletableFuture<T> f,
751	+	Function<? super T,? extends CompletionStage<U>> a) {
752	+	return f.thenComposeAsync(a, new ThreadExecutor());
753	+	}
754	+	public <T,U> CompletableFuture<U> handle
755	+	(CompletableFuture<T> f,
756	+	BiFunction<? super T,Throwable,? extends U> a) {
757	+	return f.handleAsync(a, new ThreadExecutor());
758	+	}
759	+	public <T> CompletableFuture<T> whenComplete
760	+	(CompletableFuture<T> f,
761	+	BiConsumer<? super T,? super Throwable> a) {
762	+	return f.whenCompleteAsync(a, new ThreadExecutor());
763	+	}
764	+	public <T,U> CompletableFuture<Void> runAfterBoth
765	+	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a) {
766	+	return f.runAfterBothAsync(g, a, new ThreadExecutor());
767	+	}
768	+	public <T,U> CompletableFuture<Void> thenAcceptBoth
769	+	(CompletableFuture<T> f,
770	+	CompletionStage<? extends U> g,
771	+	BiConsumer<? super T,? super U> a) {
772	+	return f.thenAcceptBothAsync(g, a, new ThreadExecutor());
773	+	}
774	+	public <T,U,V> CompletableFuture<V> thenCombine
775	+	(CompletableFuture<T> f,
776	+	CompletionStage<? extends U> g,
777	+	BiFunction<? super T,? super U,? extends V> a) {
778	+	return f.thenCombineAsync(g, a, new ThreadExecutor());
779	+	}
780	+	public <T> CompletableFuture<Void> runAfterEither
781	+	(CompletableFuture<T> f,
782	+	CompletionStage<?> g,
783	+	java.lang.Runnable a) {
784	+	return f.runAfterEitherAsync(g, a, new ThreadExecutor());
785	+	}
786	+	public <T> CompletableFuture<Void> acceptEither
787	+	(CompletableFuture<T> f,
788	+	CompletionStage<? extends T> g,
789	+	Consumer<? super T> a) {
790	+	return f.acceptEitherAsync(g, a, new ThreadExecutor());
791	+	}
792	+	public <T,U> CompletableFuture<U> applyToEither
793	+	(CompletableFuture<T> f,
794	+	CompletionStage<? extends T> g,
795	+	Function<? super T,U> a) {
796	+	return f.applyToEitherAsync(g, a, new ThreadExecutor());
797	+	}
798	+	};
799	+
800	+	public abstract void checkExecutionMode();
801	+	public abstract CompletableFuture<Void> runAsync(Runnable a);
802	+	public abstract <U> CompletableFuture<U> supplyAsync(Supplier<U> a);
803	+	public abstract <T> CompletableFuture<Void> thenRun
804	+	(CompletableFuture<T> f, Runnable a);
805	+	public abstract <T> CompletableFuture<Void> thenAccept
806	+	(CompletableFuture<T> f, Consumer<? super T> a);
807	+	public abstract <T,U> CompletableFuture<U> thenApply
808	+	(CompletableFuture<T> f, Function<? super T,U> a);
809	+	public abstract <T,U> CompletableFuture<U> thenCompose
810	+	(CompletableFuture<T> f,
811	+	Function<? super T,? extends CompletionStage<U>> a);
812	+	public abstract <T,U> CompletableFuture<U> handle
813	+	(CompletableFuture<T> f,
814	+	BiFunction<? super T,Throwable,? extends U> a);
815	+	public abstract <T> CompletableFuture<T> whenComplete
816	+	(CompletableFuture<T> f,
817	+	BiConsumer<? super T,? super Throwable> a);
818	+	public abstract <T,U> CompletableFuture<Void> runAfterBoth
819	+	(CompletableFuture<T> f, CompletableFuture<U> g, Runnable a);
820	+	public abstract <T,U> CompletableFuture<Void> thenAcceptBoth
821	+	(CompletableFuture<T> f,
822	+	CompletionStage<? extends U> g,
823	+	BiConsumer<? super T,? super U> a);
824	+	public abstract <T,U,V> CompletableFuture<V> thenCombine
825	+	(CompletableFuture<T> f,
826	+	CompletionStage<? extends U> g,
827	+	BiFunction<? super T,? super U,? extends V> a);
828	+	public abstract <T> CompletableFuture<Void> runAfterEither
829	+	(CompletableFuture<T> f,
830	+	CompletionStage<?> g,
831	+	java.lang.Runnable a);
832	+	public abstract <T> CompletableFuture<Void> acceptEither
833	+	(CompletableFuture<T> f,
834	+	CompletionStage<? extends T> g,
835	+	Consumer<? super T> a);
836	+	public abstract <T,U> CompletableFuture<U> applyToEither
837	+	(CompletableFuture<T> f,
838	+	CompletionStage<? extends T> g,
839	+	Function<? super T,U> a);
840	+	}
841	+
842	+	/**
843	+	* exceptionally action is not invoked when source completes
844	+	* normally, and source result is propagated
845	+	*/
846	+	public void testExceptionally_normalCompletion() {
847	+	for (boolean createIncomplete : new boolean[] { true, false })
848	+	for (Integer v1 : new Integer[] { 1, null })
849	+	{
850	+	final AtomicInteger a = new AtomicInteger(0);
851	+	final CompletableFuture<Integer> f = new CompletableFuture<>();
852	+	if (!createIncomplete) assertTrue(f.complete(v1));
853	+	final CompletableFuture<Integer> g = f.exceptionally
854	+	((Throwable t) -> {
855	+	a.getAndIncrement();
856	+	threadFail("should not be called");
857	+	return null;            // unreached
858	+	});
859	+	if (createIncomplete) assertTrue(f.complete(v1));
860	+
861	+	checkCompletedNormally(g, v1);
862	+	checkCompletedNormally(f, v1);
863	+	assertEquals(0, a.get());
864	+	}}
865
866		/**
867		* exceptionally action completes with function value on source
868	<	* exception;  otherwise with source value
868	>	* exception
869		*/
870	<	public void testExceptionally() {
871	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
872	<	ExceptionToInteger r = new ExceptionToInteger();
873	<	CompletableFuture<Integer> g = f.exceptionally(r);
874	<	f.completeExceptionally(new CFException());
875	<	checkCompletedNormally(g, three);
870	>	public void testExceptionally_exceptionalCompletion() {
871	>	for (boolean createIncomplete : new boolean[] { true, false })
872	>	for (Integer v1 : new Integer[] { 1, null })
873	>	{
874	>	final AtomicInteger a = new AtomicInteger(0);
875	>	final CFException ex = new CFException();
876	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
877	>	if (!createIncomplete) f.completeExceptionally(ex);
878	>	final CompletableFuture<Integer> g = f.exceptionally
879	>	((Throwable t) -> {
880	>	ExecutionMode.SYNC.checkExecutionMode();
881	>	threadAssertSame(t, ex);
882	>	a.getAndIncrement();
883	>	return v1;
884	>	});
885	>	if (createIncomplete) f.completeExceptionally(ex);
886	>
887	>	checkCompletedNormally(g, v1);
888	>	assertEquals(1, a.get());
889	>	}}
890	>
891	>	/**
892	>	* If an "exceptionally action" throws an exception, it completes
893	>	* exceptionally with that exception
894	>	*/
895	>	public void testExceptionally_exceptionalCompletionActionFailed() {
896	>	for (boolean createIncomplete : new boolean[] { true, false })
897	>	{
898	>	final AtomicInteger a = new AtomicInteger(0);
899	>	final CFException ex1 = new CFException();
900	>	final CFException ex2 = new CFException();
901	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
902	>	if (!createIncomplete) f.completeExceptionally(ex1);
903	>	final CompletableFuture<Integer> g = f.exceptionally
904	>	((Throwable t) -> {
905	>	ExecutionMode.SYNC.checkExecutionMode();
906	>	threadAssertSame(t, ex1);
907	>	a.getAndIncrement();
908	>	throw ex2;
909	>	});
910	>	if (createIncomplete) f.completeExceptionally(ex1);
911	>
912	>	checkCompletedWithWrappedException(g, ex2);
913	>	checkCompletedExceptionally(f, ex1);
914	>	assertEquals(1, a.get());
915	>	}}
916	>
917	>	/**
918	>	* whenComplete action executes on normal completion, propagating
919	>	* source result.
920	>	*/
921	>	public void testWhenComplete_normalCompletion() {
922	>	for (ExecutionMode m : ExecutionMode.values())
923	>	for (boolean createIncomplete : new boolean[] { true, false })
924	>	for (Integer v1 : new Integer[] { 1, null })
925	>	{
926	>	final AtomicInteger a = new AtomicInteger(0);
927	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
928	>	if (!createIncomplete) assertTrue(f.complete(v1));
929	>	final CompletableFuture<Integer> g = m.whenComplete
930	>	(f,
931	>	(Integer result, Throwable t) -> {
932	>	m.checkExecutionMode();
933	>	threadAssertSame(result, v1);
934	>	threadAssertNull(t);
935	>	a.getAndIncrement();
936	>	});
937	>	if (createIncomplete) assertTrue(f.complete(v1));
938	>
939	>	checkCompletedNormally(g, v1);
940	>	checkCompletedNormally(f, v1);
941	>	assertEquals(1, a.get());
942	>	}}
943	>
944	>	/**
945	>	* whenComplete action executes on exceptional completion, propagating
946	>	* source result.
947	>	*/
948	>	public void testWhenComplete_exceptionalCompletion() {
949	>	for (ExecutionMode m : ExecutionMode.values())
950	>	for (boolean createIncomplete : new boolean[] { true, false })
951	>	{
952	>	final AtomicInteger a = new AtomicInteger(0);
953	>	final CFException ex = new CFException();
954	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
955	>	if (!createIncomplete) f.completeExceptionally(ex);
956	>	final CompletableFuture<Integer> g = m.whenComplete
957	>	(f,
958	>	(Integer result, Throwable t) -> {
959	>	m.checkExecutionMode();
960	>	threadAssertNull(result);
961	>	threadAssertSame(t, ex);
962	>	a.getAndIncrement();
963	>	});
964	>	if (createIncomplete) f.completeExceptionally(ex);
965	>
966	>	checkCompletedWithWrappedException(g, ex);
967	>	checkCompletedExceptionally(f, ex);
968	>	assertEquals(1, a.get());
969	>	}}
970	>
971	>	/**
972	>	* whenComplete action executes on cancelled source, propagating
973	>	* CancellationException.
974	>	*/
975	>	public void testWhenComplete_sourceCancelled() {
976	>	for (ExecutionMode m : ExecutionMode.values())
977	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
978	>	for (boolean createIncomplete : new boolean[] { true, false })
979	>	{
980	>	final AtomicInteger a = new AtomicInteger(0);
981	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
982	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
983	>	final CompletableFuture<Integer> g = m.whenComplete
984	>	(f,
985	>	(Integer result, Throwable t) -> {
986	>	m.checkExecutionMode();
987	>	threadAssertNull(result);
988	>	threadAssertTrue(t instanceof CancellationException);
989	>	a.getAndIncrement();
990	>	});
991	>	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
992
993	<	f = new CompletableFuture<Integer>();
994	<	r = new ExceptionToInteger();
995	<	g = f.exceptionally(r);
996	<	f.complete(one);
376	<	checkCompletedNormally(g, one);
377	<	}
993	>	checkCompletedWithWrappedCancellationException(g);
994	>	checkCancelled(f);
995	>	assertEquals(1, a.get());
996	>	}}
997
998		/**
999	<	* handle action completes normally with function value on either
1000	<	* normal or exceptional completion of source
999	>	* If a whenComplete action throws an exception when triggered by
1000	>	* a normal completion, it completes exceptionally
1001		*/
1002	<	public void testHandle() {
1003	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1004	<	IntegerHandler r = new IntegerHandler();
1005	<	CompletableFuture<Integer> g = f.handle(r);
1006	<	f.completeExceptionally(new CFException());
1007	<	checkCompletedNormally(g, three);
1002	>	public void testWhenComplete_sourceCompletedNormallyActionFailed() {
1003	>	for (boolean createIncomplete : new boolean[] { true, false })
1004	>	for (ExecutionMode m : ExecutionMode.values())
1005	>	for (Integer v1 : new Integer[] { 1, null })
1006	>	{
1007	>	final AtomicInteger a = new AtomicInteger(0);
1008	>	final CFException ex = new CFException();
1009	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1010	>	if (!createIncomplete) assertTrue(f.complete(v1));
1011	>	final CompletableFuture<Integer> g = m.whenComplete
1012	>	(f,
1013	>	(Integer result, Throwable t) -> {
1014	>	m.checkExecutionMode();
1015	>	threadAssertSame(result, v1);
1016	>	threadAssertNull(t);
1017	>	a.getAndIncrement();
1018	>	throw ex;
1019	>	});
1020	>	if (createIncomplete) assertTrue(f.complete(v1));
1021	>
1022	>	checkCompletedWithWrappedException(g, ex);
1023	>	checkCompletedNormally(f, v1);
1024	>	assertEquals(1, a.get());
1025	>	}}
1026	>
1027	>	/**
1028	>	* If a whenComplete action throws an exception when triggered by
1029	>	* a source completion that also throws an exception, the source
1030	>	* exception takes precedence (unlike handle)
1031	>	*/
1032	>	public void testWhenComplete_sourceFailedActionFailed() {
1033	>	for (boolean createIncomplete : new boolean[] { true, false })
1034	>	for (ExecutionMode m : ExecutionMode.values())
1035	>	{
1036	>	final AtomicInteger a = new AtomicInteger(0);
1037	>	final CFException ex1 = new CFException();
1038	>	final CFException ex2 = new CFException();
1039	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1040	>
1041	>	if (!createIncomplete) f.completeExceptionally(ex1);
1042	>	final CompletableFuture<Integer> g = m.whenComplete
1043	>	(f,
1044	>	(Integer result, Throwable t) -> {
1045	>	m.checkExecutionMode();
1046	>	threadAssertSame(t, ex1);
1047	>	threadAssertNull(result);
1048	>	a.getAndIncrement();
1049	>	throw ex2;
1050	>	});
1051	>	if (createIncomplete) f.completeExceptionally(ex1);
1052	>
1053	>	checkCompletedWithWrappedException(g, ex1);
1054	>	checkCompletedExceptionally(f, ex1);
1055	>	if (testImplementationDetails) {
1056	>	assertEquals(1, ex1.getSuppressed().length);
1057	>	assertSame(ex2, ex1.getSuppressed()[0]);
1058	>	}
1059	>	assertEquals(1, a.get());
1060	>	}}
1061
1062	<	f = new CompletableFuture<Integer>();
1063	<	r = new IntegerHandler();
1064	<	g = f.handle(r);
1065	<	f.complete(one);
1066	<	checkCompletedNormally(g, two);
1067	<	}
1062	>	/**
1063	>	* handle action completes normally with function value on normal
1064	>	* completion of source
1065	>	*/
1066	>	public void testHandle_normalCompletion() {
1067	>	for (ExecutionMode m : ExecutionMode.values())
1068	>	for (boolean createIncomplete : new boolean[] { true, false })
1069	>	for (Integer v1 : new Integer[] { 1, null })
1070	>	{
1071	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1072	>	final AtomicInteger a = new AtomicInteger(0);
1073	>	if (!createIncomplete) assertTrue(f.complete(v1));
1074	>	final CompletableFuture<Integer> g = m.handle
1075	>	(f,
1076	>	(Integer result, Throwable t) -> {
1077	>	m.checkExecutionMode();
1078	>	threadAssertSame(result, v1);
1079	>	threadAssertNull(t);
1080	>	a.getAndIncrement();
1081	>	return inc(v1);
1082	>	});
1083	>	if (createIncomplete) assertTrue(f.complete(v1));
1084	>
1085	>	checkCompletedNormally(g, inc(v1));
1086	>	checkCompletedNormally(f, v1);
1087	>	assertEquals(1, a.get());
1088	>	}}
1089
1090		/**
1091	<	* runAsync completes after running Runnable
1091	>	* handle action completes normally with function value on
1092	>	* exceptional completion of source
1093		*/
1094	<	public void testRunAsync() {
1095	<	Noop r = new Noop();
1096	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r);
1097	<	assertNull(f.join());
1098	<	assertTrue(r.ran);
1099	<	}
1094	>	public void testHandle_exceptionalCompletion() {
1095	>	for (ExecutionMode m : ExecutionMode.values())
1096	>	for (boolean createIncomplete : new boolean[] { true, false })
1097	>	for (Integer v1 : new Integer[] { 1, null })
1098	>	{
1099	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1100	>	final AtomicInteger a = new AtomicInteger(0);
1101	>	final CFException ex = new CFException();
1102	>	if (!createIncomplete) f.completeExceptionally(ex);
1103	>	final CompletableFuture<Integer> g = m.handle
1104	>	(f,
1105	>	(Integer result, Throwable t) -> {
1106	>	m.checkExecutionMode();
1107	>	threadAssertNull(result);
1108	>	threadAssertSame(t, ex);
1109	>	a.getAndIncrement();
1110	>	return v1;
1111	>	});
1112	>	if (createIncomplete) f.completeExceptionally(ex);
1113	>
1114	>	checkCompletedNormally(g, v1);
1115	>	checkCompletedExceptionally(f, ex);
1116	>	assertEquals(1, a.get());
1117	>	}}
1118	>
1119	>	/**
1120	>	* handle action completes normally with function value on
1121	>	* cancelled source
1122	>	*/
1123	>	public void testHandle_sourceCancelled() {
1124	>	for (ExecutionMode m : ExecutionMode.values())
1125	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1126	>	for (boolean createIncomplete : new boolean[] { true, false })
1127	>	for (Integer v1 : new Integer[] { 1, null })
1128	>	{
1129	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1130	>	final AtomicInteger a = new AtomicInteger(0);
1131	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1132	>	final CompletableFuture<Integer> g = m.handle
1133	>	(f,
1134	>	(Integer result, Throwable t) -> {
1135	>	m.checkExecutionMode();
1136	>	threadAssertNull(result);
1137	>	threadAssertTrue(t instanceof CancellationException);
1138	>	a.getAndIncrement();
1139	>	return v1;
1140	>	});
1141	>	if (createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
1142	>
1143	>	checkCompletedNormally(g, v1);
1144	>	checkCancelled(f);
1145	>	assertEquals(1, a.get());
1146	>	}}
1147
1148		/**
1149	<	* runAsync with executor completes after running Runnable
1149	>	* If a "handle action" throws an exception when triggered by
1150	>	* a normal completion, it completes exceptionally
1151		*/
1152	<	public void testRunAsync2() {
1153	<	Noop r = new Noop();
1154	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r, new ThreadExecutor());
1155	<	assertNull(f.join());
1156	<	assertTrue(r.ran);
1157	<	}
1152	>	public void testHandle_sourceCompletedNormallyActionFailed() {
1153	>	for (ExecutionMode m : ExecutionMode.values())
1154	>	for (boolean createIncomplete : new boolean[] { true, false })
1155	>	for (Integer v1 : new Integer[] { 1, null })
1156	>	{
1157	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1158	>	final AtomicInteger a = new AtomicInteger(0);
1159	>	final CFException ex = new CFException();
1160	>	if (!createIncomplete) assertTrue(f.complete(v1));
1161	>	final CompletableFuture<Integer> g = m.handle
1162	>	(f,
1163	>	(Integer result, Throwable t) -> {
1164	>	m.checkExecutionMode();
1165	>	threadAssertSame(result, v1);
1166	>	threadAssertNull(t);
1167	>	a.getAndIncrement();
1168	>	throw ex;
1169	>	});
1170	>	if (createIncomplete) assertTrue(f.complete(v1));
1171	>
1172	>	checkCompletedWithWrappedException(g, ex);
1173	>	checkCompletedNormally(f, v1);
1174	>	assertEquals(1, a.get());
1175	>	}}
1176	>
1177	>	/**
1178	>	* If a "handle action" throws an exception when triggered by
1179	>	* a source completion that also throws an exception, the action
1180	>	* exception takes precedence (unlike whenComplete)
1181	>	*/
1182	>	public void testHandle_sourceFailedActionFailed() {
1183	>	for (boolean createIncomplete : new boolean[] { true, false })
1184	>	for (ExecutionMode m : ExecutionMode.values())
1185	>	{
1186	>	final AtomicInteger a = new AtomicInteger(0);
1187	>	final CFException ex1 = new CFException();
1188	>	final CFException ex2 = new CFException();
1189	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1190	>
1191	>	if (!createIncomplete) f.completeExceptionally(ex1);
1192	>	final CompletableFuture<Integer> g = m.handle
1193	>	(f,
1194	>	(Integer result, Throwable t) -> {
1195	>	m.checkExecutionMode();
1196	>	threadAssertNull(result);
1197	>	threadAssertSame(ex1, t);
1198	>	a.getAndIncrement();
1199	>	throw ex2;
1200	>	});
1201	>	if (createIncomplete) f.completeExceptionally(ex1);
1202	>
1203	>	checkCompletedWithWrappedException(g, ex2);
1204	>	checkCompletedExceptionally(f, ex1);
1205	>	assertEquals(1, a.get());
1206	>	}}
1207
1208		/**
1209	<	* failing runAsync completes exceptionally after running Runnable
1209	>	* runAsync completes after running Runnable
1210		*/
1211	<	public void testRunAsync3() {
1212	<	FailingNoop r = new FailingNoop();
1213	<	CompletableFuture<Void> f = CompletableFuture.runAsync(r);
1214	<	checkCompletedWithWrappedCFException(f);
1215	<	assertTrue(r.ran);
1216	<	}
1211	>	public void testRunAsync_normalCompletion() {
1212	>	ExecutionMode[] executionModes = {
1213	>	ExecutionMode.ASYNC,
1214	>	ExecutionMode.EXECUTOR,
1215	>	};
1216	>	for (ExecutionMode m : executionModes)
1217	>	{
1218	>	final Noop r = new Noop(m);
1219	>	final CompletableFuture<Void> f = m.runAsync(r);
1220	>	assertNull(f.join());
1221	>	checkCompletedNormally(f, null);
1222	>	r.assertInvoked();
1223	>	}}
1224
1225		/**
1226	<	* supplyAsync completes with result of supplier
1226	>	* failing runAsync completes exceptionally after running Runnable
1227		*/
1228	<	public void testSupplyAsync() {
1229	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(supplyOne);
1230	<	assertEquals(f.join(), one);
1228	>	public void testRunAsync_exceptionalCompletion() {
1229	>	ExecutionMode[] executionModes = {
1230	>	ExecutionMode.ASYNC,
1231	>	ExecutionMode.EXECUTOR,
1232	>	};
1233	>	for (ExecutionMode m : executionModes)
1234	>	{
1235	>	final FailingRunnable r = new FailingRunnable(m);
1236	>	final CompletableFuture<Void> f = m.runAsync(r);
1237	>	checkCompletedWithWrappedException(f, r.ex);
1238	>	r.assertInvoked();
1239	>	}}
1240	>
1241	>	public void testRunAsync_rejectingExecutor() {
1242	>	CountingRejectingExecutor e = new CountingRejectingExecutor();
1243	>	try {
1244	>	CompletableFuture.runAsync(() -> {}, e);
1245	>	shouldThrow();
1246	>	} catch (Throwable t) {
1247	>	assertSame(e.ex, t);
1248	>	}
1249	>
1250	>	assertEquals(1, e.count.get());
1251		}
1252
1253		/**
1254	<	* supplyAsync with executor completes with result of supplier
1254	>	* supplyAsync completes with result of supplier
1255		*/
1256	<	public void testSupplyAsync2() {
1257	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(supplyOne, new ThreadExecutor());
1258	<	assertEquals(f.join(), one);
1259	<	}
1256	>	public void testSupplyAsync_normalCompletion() {
1257	>	ExecutionMode[] executionModes = {
1258	>	ExecutionMode.ASYNC,
1259	>	ExecutionMode.EXECUTOR,
1260	>	};
1261	>	for (ExecutionMode m : executionModes)
1262	>	for (Integer v1 : new Integer[] { 1, null })
1263	>	{
1264	>	final IntegerSupplier r = new IntegerSupplier(m, v1);
1265	>	final CompletableFuture<Integer> f = m.supplyAsync(r);
1266	>	assertSame(v1, f.join());
1267	>	checkCompletedNormally(f, v1);
1268	>	r.assertInvoked();
1269	>	}}
1270
1271		/**
1272		* Failing supplyAsync completes exceptionally
1273		*/
1274	<	public void testSupplyAsync3() {
1275	<	FailingSupplier r = new FailingSupplier();
1276	<	CompletableFuture<Integer> f = CompletableFuture.supplyAsync(r);
1277	<	checkCompletedWithWrappedCFException(f);
1278	<	assertTrue(r.ran);
1274	>	public void testSupplyAsync_exceptionalCompletion() {
1275	>	ExecutionMode[] executionModes = {
1276	>	ExecutionMode.ASYNC,
1277	>	ExecutionMode.EXECUTOR,
1278	>	};
1279	>	for (ExecutionMode m : executionModes)
1280	>	{
1281	>	FailingSupplier r = new FailingSupplier(m);
1282	>	CompletableFuture<Integer> f = m.supplyAsync(r);
1283	>	checkCompletedWithWrappedException(f, r.ex);
1284	>	r.assertInvoked();
1285	>	}}
1286	>
1287	>	public void testSupplyAsync_rejectingExecutor() {
1288	>	CountingRejectingExecutor e = new CountingRejectingExecutor();
1289	>	try {
1290	>	CompletableFuture.supplyAsync(() -> null, e);
1291	>	shouldThrow();
1292	>	} catch (Throwable t) {
1293	>	assertSame(e.ex, t);
1294	>	}
1295	>
1296	>	assertEquals(1, e.count.get());
1297		}
1298
1299		// seq completion methods
#	Line 455 | Line 1301 | public class CompletableFutureTest exten
1301		/**
1302		* thenRun result completes normally after normal completion of source
1303		*/
1304	<	public void testThenRun() {
1305	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1306	<	Noop r = new Noop();
1307	<	CompletableFuture<Void> g = f.thenRun(r);
1308	<	f.complete(null);
1309	<	checkCompletedNormally(g, null);
1310	<	// reordered version
1311	<	f = new CompletableFuture<Integer>();
1312	<	f.complete(null);
1313	<	r = new Noop();
1314	<	g = f.thenRun(r);
1315	<	checkCompletedNormally(g, null);
1316	<	}
1304	>	public void testThenRun_normalCompletion() {
1305	>	for (ExecutionMode m : ExecutionMode.values())
1306	>	for (Integer v1 : new Integer[] { 1, null })
1307	>	{
1308	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1309	>	final Noop[] rs = new Noop[6];
1310	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1311	>
1312	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1313	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1314	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1315	>	checkIncomplete(h0);
1316	>	checkIncomplete(h1);
1317	>	checkIncomplete(h2);
1318	>	assertTrue(f.complete(v1));
1319	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1320	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1321	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1322	>
1323	>	checkCompletedNormally(h0, null);
1324	>	checkCompletedNormally(h1, null);
1325	>	checkCompletedNormally(h2, null);
1326	>	checkCompletedNormally(h3, null);
1327	>	checkCompletedNormally(h4, null);
1328	>	checkCompletedNormally(h5, null);
1329	>	checkCompletedNormally(f, v1);
1330	>	for (Noop r : rs) r.assertInvoked();
1331	>	}}
1332
1333		/**
1334		* thenRun result completes exceptionally after exceptional
1335		* completion of source
1336		*/
1337	<	public void testThenRun2() {
1338	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1339	<	Noop r = new Noop();
1340	<	CompletableFuture<Void> g = f.thenRun(r);
1341	<	f.completeExceptionally(new CFException());
1342	<	checkCompletedWithWrappedCFException(g);
1343	<	}
1337	>	public void testThenRun_exceptionalCompletion() {
1338	>	for (ExecutionMode m : ExecutionMode.values())
1339	>	{
1340	>	final CFException ex = new CFException();
1341	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1342	>	final Noop[] rs = new Noop[6];
1343	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1344	>
1345	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1346	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1347	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1348	>	checkIncomplete(h0);
1349	>	checkIncomplete(h1);
1350	>	checkIncomplete(h2);
1351	>	assertTrue(f.completeExceptionally(ex));
1352	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1353	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1354	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1355	>
1356	>	checkCompletedWithWrappedException(h0, ex);
1357	>	checkCompletedWithWrappedException(h1, ex);
1358	>	checkCompletedWithWrappedException(h2, ex);
1359	>	checkCompletedWithWrappedException(h3, ex);
1360	>	checkCompletedWithWrappedException(h4, ex);
1361	>	checkCompletedWithWrappedException(h5, ex);
1362	>	checkCompletedExceptionally(f, ex);
1363	>	for (Noop r : rs) r.assertNotInvoked();
1364	>	}}
1365
1366		/**
1367	<	* thenRun result completes exceptionally if action does
1367	>	* thenRun result completes exceptionally if source cancelled
1368		*/
1369	<	public void testThenRun3() {
1370	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1371	<	FailingNoop r = new FailingNoop();
1372	<	CompletableFuture<Void> g = f.thenRun(r);
1373	<	f.complete(null);
1374	<	checkCompletedWithWrappedCFException(g);
1375	<	}
1369	>	public void testThenRun_sourceCancelled() {
1370	>	for (ExecutionMode m : ExecutionMode.values())
1371	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1372	>	{
1373	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1374	>	final Noop[] rs = new Noop[6];
1375	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
1376	>
1377	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1378	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1379	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1380	>	checkIncomplete(h0);
1381	>	checkIncomplete(h1);
1382	>	checkIncomplete(h2);
1383	>	assertTrue(f.cancel(mayInterruptIfRunning));
1384	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1385	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1386	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1387	>
1388	>	checkCompletedWithWrappedCancellationException(h0);
1389	>	checkCompletedWithWrappedCancellationException(h1);
1390	>	checkCompletedWithWrappedCancellationException(h2);
1391	>	checkCompletedWithWrappedCancellationException(h3);
1392	>	checkCompletedWithWrappedCancellationException(h4);
1393	>	checkCompletedWithWrappedCancellationException(h5);
1394	>	checkCancelled(f);
1395	>	for (Noop r : rs) r.assertNotInvoked();
1396	>	}}
1397
1398		/**
1399	<	* thenRun result completes exceptionally if source cancelled
1399	>	* thenRun result completes exceptionally if action does
1400		*/
1401	<	public void testThenRun4() {
1402	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1403	<	Noop r = new Noop();
1404	<	CompletableFuture<Void> g = f.thenRun(r);
1405	<	assertTrue(f.cancel(true));
1406	<	checkCompletedWithWrappedCancellationException(g);
1407	<	}
1401	>	public void testThenRun_actionFailed() {
1402	>	for (ExecutionMode m : ExecutionMode.values())
1403	>	for (Integer v1 : new Integer[] { 1, null })
1404	>	{
1405	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1406	>	final FailingRunnable[] rs = new FailingRunnable[6];
1407	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
1408	>
1409	>	final CompletableFuture<Void> h0 = m.thenRun(f, rs[0]);
1410	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, f, rs[1]);
1411	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, f, rs[2]);
1412	>	assertTrue(f.complete(v1));
1413	>	final CompletableFuture<Void> h3 = m.thenRun(f, rs[3]);
1414	>	final CompletableFuture<Void> h4 = m.runAfterBoth(f, f, rs[4]);
1415	>	final CompletableFuture<Void> h5 = m.runAfterEither(f, f, rs[5]);
1416	>
1417	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1418	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1419	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1420	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1421	>	checkCompletedWithWrappedException(h4, rs[4].ex);
1422	>	checkCompletedWithWrappedException(h5, rs[5].ex);
1423	>	checkCompletedNormally(f, v1);
1424	>	}}
1425
1426		/**
1427		* thenApply result completes normally after normal completion of source
1428		*/
1429	<	public void testThenApply() {
1430	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1431	<	CompletableFuture<Integer> g = f.thenApply(inc);
1432	<	f.complete(one);
1433	<	checkCompletedNormally(g, two);
1434	<	}
1429	>	public void testThenApply_normalCompletion() {
1430	>	for (ExecutionMode m : ExecutionMode.values())
1431	>	for (Integer v1 : new Integer[] { 1, null })
1432	>	{
1433	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1434	>	final IncFunction[] rs = new IncFunction[4];
1435	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1436	>
1437	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1438	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1439	>	checkIncomplete(h0);
1440	>	checkIncomplete(h1);
1441	>	assertTrue(f.complete(v1));
1442	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1443	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1444	>
1445	>	checkCompletedNormally(h0, inc(v1));
1446	>	checkCompletedNormally(h1, inc(v1));
1447	>	checkCompletedNormally(h2, inc(v1));
1448	>	checkCompletedNormally(h3, inc(v1));
1449	>	checkCompletedNormally(f, v1);
1450	>	for (IncFunction r : rs) r.assertValue(inc(v1));
1451	>	}}
1452
1453		/**
1454		* thenApply result completes exceptionally after exceptional
1455		* completion of source
1456		*/
1457	<	public void testThenApply2() {
1458	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1459	<	CompletableFuture<Integer> g = f.thenApply(inc);
1460	<	f.completeExceptionally(new CFException());
1461	<	checkCompletedWithWrappedCFException(g);
1462	<	}
1457	>	public void testThenApply_exceptionalCompletion() {
1458	>	for (ExecutionMode m : ExecutionMode.values())
1459	>	{
1460	>	final CFException ex = new CFException();
1461	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1462	>	final IncFunction[] rs = new IncFunction[4];
1463	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1464	>
1465	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1466	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1467	>	assertTrue(f.completeExceptionally(ex));
1468	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1469	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1470	>
1471	>	checkCompletedWithWrappedException(h0, ex);
1472	>	checkCompletedWithWrappedException(h1, ex);
1473	>	checkCompletedWithWrappedException(h2, ex);
1474	>	checkCompletedWithWrappedException(h3, ex);
1475	>	checkCompletedExceptionally(f, ex);
1476	>	for (IncFunction r : rs) r.assertNotInvoked();
1477	>	}}
1478
1479		/**
1480	<	* thenApply result completes exceptionally if action does
1480	>	* thenApply result completes exceptionally if source cancelled
1481		*/
1482	<	public void testThenApply3() {
1483	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1484	<	CompletableFuture<Integer> g = f.thenApply(new FailingFunction());
1485	<	f.complete(one);
1486	<	checkCompletedWithWrappedCFException(g);
1487	<	}
1482	>	public void testThenApply_sourceCancelled() {
1483	>	for (ExecutionMode m : ExecutionMode.values())
1484	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1485	>	{
1486	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1487	>	final IncFunction[] rs = new IncFunction[4];
1488	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
1489	>
1490	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1491	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1492	>	assertTrue(f.cancel(mayInterruptIfRunning));
1493	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1494	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1495	>
1496	>	checkCompletedWithWrappedCancellationException(h0);
1497	>	checkCompletedWithWrappedCancellationException(h1);
1498	>	checkCompletedWithWrappedCancellationException(h2);
1499	>	checkCompletedWithWrappedCancellationException(h3);
1500	>	checkCancelled(f);
1501	>	for (IncFunction r : rs) r.assertNotInvoked();
1502	>	}}
1503
1504		/**
1505	<	* thenApply result completes exceptionally if source cancelled
1505	>	* thenApply result completes exceptionally if action does
1506		*/
1507	<	public void testThenApply4() {
1508	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1509	<	CompletableFuture<Integer> g = f.thenApply(inc);
1510	<	assertTrue(f.cancel(true));
1511	<	checkCompletedWithWrappedCancellationException(g);
1512	<	}
1507	>	public void testThenApply_actionFailed() {
1508	>	for (ExecutionMode m : ExecutionMode.values())
1509	>	for (Integer v1 : new Integer[] { 1, null })
1510	>	{
1511	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1512	>	final FailingFunction[] rs = new FailingFunction[4];
1513	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
1514	>
1515	>	final CompletableFuture<Integer> h0 = m.thenApply(f, rs[0]);
1516	>	final CompletableFuture<Integer> h1 = m.applyToEither(f, f, rs[1]);
1517	>	assertTrue(f.complete(v1));
1518	>	final CompletableFuture<Integer> h2 = m.thenApply(f, rs[2]);
1519	>	final CompletableFuture<Integer> h3 = m.applyToEither(f, f, rs[3]);
1520	>
1521	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1522	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1523	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1524	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1525	>	checkCompletedNormally(f, v1);
1526	>	}}
1527
1528		/**
1529		* thenAccept result completes normally after normal completion of source
1530		*/
1531	<	public void testThenAccept() {
1532	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1533	<	IncAction r = new IncAction();
1534	<	CompletableFuture<Void> g = f.thenAccept(r);
1535	<	f.complete(one);
1536	<	checkCompletedNormally(g, null);
1537	<	assertEquals(r.value, 2);
1538	<	}
1531	>	public void testThenAccept_normalCompletion() {
1532	>	for (ExecutionMode m : ExecutionMode.values())
1533	>	for (Integer v1 : new Integer[] { 1, null })
1534	>	{
1535	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1536	>	final NoopConsumer[] rs = new NoopConsumer[4];
1537	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1538	>
1539	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1540	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1541	>	checkIncomplete(h0);
1542	>	checkIncomplete(h1);
1543	>	assertTrue(f.complete(v1));
1544	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1545	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1546	>
1547	>	checkCompletedNormally(h0, null);
1548	>	checkCompletedNormally(h1, null);
1549	>	checkCompletedNormally(h2, null);
1550	>	checkCompletedNormally(h3, null);
1551	>	checkCompletedNormally(f, v1);
1552	>	for (NoopConsumer r : rs) r.assertValue(v1);
1553	>	}}
1554
1555		/**
1556		* thenAccept result completes exceptionally after exceptional
1557		* completion of source
1558		*/
1559	<	public void testThenAccept2() {
1560	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1561	<	IncAction r = new IncAction();
1562	<	CompletableFuture<Void> g = f.thenAccept(r);
1563	<	f.completeExceptionally(new CFException());
1564	<	checkCompletedWithWrappedCFException(g);
1565	<	}
1566	<
1567	<	/**
1568	<	* thenAccept result completes exceptionally if action does
1569	<	*/
1570	<	public void testThenAccept3() {
1571	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1572	<	FailingConsumer r = new FailingConsumer();
1573	<	CompletableFuture<Void> g = f.thenAccept(r);
1574	<	f.complete(one);
1575	<	checkCompletedWithWrappedCFException(g);
1576	<	assertTrue(r.ran);
1577	<	}
1559	>	public void testThenAccept_exceptionalCompletion() {
1560	>	for (ExecutionMode m : ExecutionMode.values())
1561	>	{
1562	>	final CFException ex = new CFException();
1563	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1564	>	final NoopConsumer[] rs = new NoopConsumer[4];
1565	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1566	>
1567	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1568	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1569	>	assertTrue(f.completeExceptionally(ex));
1570	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1571	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1572	>
1573	>	checkCompletedWithWrappedException(h0, ex);
1574	>	checkCompletedWithWrappedException(h1, ex);
1575	>	checkCompletedWithWrappedException(h2, ex);
1576	>	checkCompletedWithWrappedException(h3, ex);
1577	>	checkCompletedExceptionally(f, ex);
1578	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1579	>	}}
1580
1581		/**
1582		* thenAccept result completes exceptionally if source cancelled
1583		*/
1584	<	public void testThenAccept4() {
1585	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1586	<	IncAction r = new IncAction();
1587	<	CompletableFuture<Void> g = f.thenAccept(r);
1588	<	assertTrue(f.cancel(true));
1589	<	checkCompletedWithWrappedCancellationException(g);
1590	<	}
1591	<
1584	>	public void testThenAccept_sourceCancelled() {
1585	>	for (ExecutionMode m : ExecutionMode.values())
1586	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1587	>	{
1588	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1589	>	final NoopConsumer[] rs = new NoopConsumer[4];
1590	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
1591	>
1592	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1593	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1594	>	assertTrue(f.cancel(mayInterruptIfRunning));
1595	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1596	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1597	>
1598	>	checkCompletedWithWrappedCancellationException(h0);
1599	>	checkCompletedWithWrappedCancellationException(h1);
1600	>	checkCompletedWithWrappedCancellationException(h2);
1601	>	checkCompletedWithWrappedCancellationException(h3);
1602	>	checkCancelled(f);
1603	>	for (NoopConsumer r : rs) r.assertNotInvoked();
1604	>	}}
1605
1606		/**
1607	<	* thenCombine result completes normally after normal completion of sources
1607	>	* thenAccept result completes exceptionally if action does
1608		*/
1609	<	public void testThenCombine() {
1610	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1611	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1612	<	CompletableFuture<Integer> g = f.thenCombine(f2, add);
1613	<	f.complete(one);
1614	<	checkIncomplete(g);
1615	<	f2.complete(two);
1616	<	checkCompletedNormally(g, three);
1617	<
1618	<	f = new CompletableFuture<Integer>();
1619	<	f.complete(one);
1620	<	f2 = new CompletableFuture<Integer>();
1621	<	g = f.thenCombine(f2, add);
1622	<	checkIncomplete(g);
1623	<	f2.complete(two);
1624	<	checkCompletedNormally(g, three);
1625	<	}
1609	>	public void testThenAccept_actionFailed() {
1610	>	for (ExecutionMode m : ExecutionMode.values())
1611	>	for (Integer v1 : new Integer[] { 1, null })
1612	>	{
1613	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1614	>	final FailingConsumer[] rs = new FailingConsumer[4];
1615	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
1616	>
1617	>	final CompletableFuture<Void> h0 = m.thenAccept(f, rs[0]);
1618	>	final CompletableFuture<Void> h1 = m.acceptEither(f, f, rs[1]);
1619	>	assertTrue(f.complete(v1));
1620	>	final CompletableFuture<Void> h2 = m.thenAccept(f, rs[2]);
1621	>	final CompletableFuture<Void> h3 = m.acceptEither(f, f, rs[3]);
1622	>
1623	>	checkCompletedWithWrappedException(h0, rs[0].ex);
1624	>	checkCompletedWithWrappedException(h1, rs[1].ex);
1625	>	checkCompletedWithWrappedException(h2, rs[2].ex);
1626	>	checkCompletedWithWrappedException(h3, rs[3].ex);
1627	>	checkCompletedNormally(f, v1);
1628	>	}}
1629	>
1630	>	/**
1631	>	* thenCombine result completes normally after normal completion
1632	>	* of sources
1633	>	*/
1634	>	public void testThenCombine_normalCompletion() {
1635	>	for (ExecutionMode m : ExecutionMode.values())
1636	>	for (boolean fFirst : new boolean[] { true, false })
1637	>	for (Integer v1 : new Integer[] { 1, null })
1638	>	for (Integer v2 : new Integer[] { 2, null })
1639	>	{
1640	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1641	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1642	>	final SubtractFunction[] rs = new SubtractFunction[6];
1643	>	for (int i = 0; i < rs.length; i++) rs[i] = new SubtractFunction(m);
1644	>
1645	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1646	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1647	>	final Integer w1 =  fFirst ? v1 : v2;
1648	>	final Integer w2 = !fFirst ? v1 : v2;
1649	>
1650	>	final CompletableFuture<Integer> h0 = m.thenCombine(f, g, rs[0]);
1651	>	final CompletableFuture<Integer> h1 = m.thenCombine(fst, fst, rs[1]);
1652	>	assertTrue(fst.complete(w1));
1653	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, rs[2]);
1654	>	final CompletableFuture<Integer> h3 = m.thenCombine(fst, fst, rs[3]);
1655	>	checkIncomplete(h0); rs[0].assertNotInvoked();
1656	>	checkIncomplete(h2); rs[2].assertNotInvoked();
1657	>	checkCompletedNormally(h1, subtract(w1, w1));
1658	>	checkCompletedNormally(h3, subtract(w1, w1));
1659	>	rs[1].assertValue(subtract(w1, w1));
1660	>	rs[3].assertValue(subtract(w1, w1));
1661	>	assertTrue(snd.complete(w2));
1662	>	final CompletableFuture<Integer> h4 = m.thenCombine(f, g, rs[4]);
1663	>
1664	>	checkCompletedNormally(h0, subtract(v1, v2));
1665	>	checkCompletedNormally(h2, subtract(v1, v2));
1666	>	checkCompletedNormally(h4, subtract(v1, v2));
1667	>	rs[0].assertValue(subtract(v1, v2));
1668	>	rs[2].assertValue(subtract(v1, v2));
1669	>	rs[4].assertValue(subtract(v1, v2));
1670	>
1671	>	checkCompletedNormally(f, v1);
1672	>	checkCompletedNormally(g, v2);
1673	>	}}
1674
1675		/**
1676		* thenCombine result completes exceptionally after exceptional
1677		* completion of either source
1678		*/
1679	<	public void testThenCombine2() {
1680	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1681	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1682	<	CompletableFuture<Integer> g = f.thenCombine(f2, add);
1683	<	f.completeExceptionally(new CFException());
1684	<	f2.complete(two);
1685	<	checkCompletedWithWrappedCFException(g);
1686	<
1687	<	f = new CompletableFuture<Integer>();
1688	<	f.complete(one);
1689	<	f2 = new CompletableFuture<Integer>();
1690	<	g = f.thenCombine(f2, add);
1691	<	f2.completeExceptionally(new CFException());
1692	<	checkCompletedWithWrappedCFException(g);
1693	<	}
1679	>	public void testThenCombine_exceptionalCompletion() throws Throwable {
1680	>	for (ExecutionMode m : ExecutionMode.values())
1681	>	for (boolean fFirst : new boolean[] { true, false })
1682	>	for (boolean failFirst : new boolean[] { true, false })
1683	>	for (Integer v1 : new Integer[] { 1, null })
1684	>	{
1685	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1686	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1687	>	final CFException ex = new CFException();
1688	>	final SubtractFunction r1 = new SubtractFunction(m);
1689	>	final SubtractFunction r2 = new SubtractFunction(m);
1690	>	final SubtractFunction r3 = new SubtractFunction(m);
1691	>
1692	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1693	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1694	>	final Callable<Boolean> complete1 = failFirst ?
1695	>	() -> fst.completeExceptionally(ex) :
1696	>	() -> fst.complete(v1);
1697	>	final Callable<Boolean> complete2 = failFirst ?
1698	>	() -> snd.complete(v1) :
1699	>	() -> snd.completeExceptionally(ex);
1700	>
1701	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1702	>	assertTrue(complete1.call());
1703	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1704	>	checkIncomplete(h1);
1705	>	checkIncomplete(h2);
1706	>	assertTrue(complete2.call());
1707	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1708	>
1709	>	checkCompletedWithWrappedException(h1, ex);
1710	>	checkCompletedWithWrappedException(h2, ex);
1711	>	checkCompletedWithWrappedException(h3, ex);
1712	>	r1.assertNotInvoked();
1713	>	r2.assertNotInvoked();
1714	>	r3.assertNotInvoked();
1715	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1716	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1717	>	}}
1718
1719		/**
1720	<	* thenCombine result completes exceptionally if action does
1720	>	* thenCombine result completes exceptionally if either source cancelled
1721		*/
1722	<	public void testThenCombine3() {
1723	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1724	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1725	<	FailingBiFunction r = new FailingBiFunction();
1726	<	CompletableFuture<Integer> g = f.thenCombine(f2, r);
1727	<	f.complete(one);
1728	<	checkIncomplete(g);
1729	<	f2.complete(two);
1730	<	checkCompletedWithWrappedCFException(g);
1731	<	}
1722	>	public void testThenCombine_sourceCancelled() throws Throwable {
1723	>	for (ExecutionMode m : ExecutionMode.values())
1724	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1725	>	for (boolean fFirst : new boolean[] { true, false })
1726	>	for (boolean failFirst : new boolean[] { true, false })
1727	>	for (Integer v1 : new Integer[] { 1, null })
1728	>	{
1729	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1730	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1731	>	final SubtractFunction r1 = new SubtractFunction(m);
1732	>	final SubtractFunction r2 = new SubtractFunction(m);
1733	>	final SubtractFunction r3 = new SubtractFunction(m);
1734	>
1735	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1736	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1737	>	final Callable<Boolean> complete1 = failFirst ?
1738	>	() -> fst.cancel(mayInterruptIfRunning) :
1739	>	() -> fst.complete(v1);
1740	>	final Callable<Boolean> complete2 = failFirst ?
1741	>	() -> snd.complete(v1) :
1742	>	() -> snd.cancel(mayInterruptIfRunning);
1743	>
1744	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1745	>	assertTrue(complete1.call());
1746	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1747	>	checkIncomplete(h1);
1748	>	checkIncomplete(h2);
1749	>	assertTrue(complete2.call());
1750	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1751	>
1752	>	checkCompletedWithWrappedCancellationException(h1);
1753	>	checkCompletedWithWrappedCancellationException(h2);
1754	>	checkCompletedWithWrappedCancellationException(h3);
1755	>	r1.assertNotInvoked();
1756	>	r2.assertNotInvoked();
1757	>	r3.assertNotInvoked();
1758	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1759	>	checkCancelled(failFirst ? fst : snd);
1760	>	}}
1761
1762		/**
1763	<	* thenCombine result completes exceptionally if either source cancelled
1763	>	* thenCombine result completes exceptionally if action does
1764		*/
1765	<	public void testThenCombine4() {
1766	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1767	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1768	<	CompletableFuture<Integer> g = f.thenCombine(f2, add);
1769	<	assertTrue(f.cancel(true));
1770	<	f2.complete(two);
1771	<	checkCompletedWithWrappedCancellationException(g);
1772	<	f = new CompletableFuture<Integer>();
1773	<	f2 = new CompletableFuture<Integer>();
1774	<	g = f.thenCombine(f2, add);
1775	<	f.complete(one);
1776	<	assertTrue(f2.cancel(true));
1777	<	checkCompletedWithWrappedCancellationException(g);
1778	<	}
1765	>	public void testThenCombine_actionFailed() {
1766	>	for (ExecutionMode m : ExecutionMode.values())
1767	>	for (boolean fFirst : new boolean[] { true, false })
1768	>	for (Integer v1 : new Integer[] { 1, null })
1769	>	for (Integer v2 : new Integer[] { 2, null })
1770	>	{
1771	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1772	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1773	>	final FailingBiFunction r1 = new FailingBiFunction(m);
1774	>	final FailingBiFunction r2 = new FailingBiFunction(m);
1775	>	final FailingBiFunction r3 = new FailingBiFunction(m);
1776	>
1777	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1778	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1779	>	final Integer w1 =  fFirst ? v1 : v2;
1780	>	final Integer w2 = !fFirst ? v1 : v2;
1781	>
1782	>	final CompletableFuture<Integer> h1 = m.thenCombine(f, g, r1);
1783	>	assertTrue(fst.complete(w1));
1784	>	final CompletableFuture<Integer> h2 = m.thenCombine(f, g, r2);
1785	>	assertTrue(snd.complete(w2));
1786	>	final CompletableFuture<Integer> h3 = m.thenCombine(f, g, r3);
1787	>
1788	>	checkCompletedWithWrappedException(h1, r1.ex);
1789	>	checkCompletedWithWrappedException(h2, r2.ex);
1790	>	checkCompletedWithWrappedException(h3, r3.ex);
1791	>	r1.assertInvoked();
1792	>	r2.assertInvoked();
1793	>	r3.assertInvoked();
1794	>	checkCompletedNormally(f, v1);
1795	>	checkCompletedNormally(g, v2);
1796	>	}}
1797
1798		/**
1799		* thenAcceptBoth result completes normally after normal
1800		* completion of sources
1801		*/
1802	<	public void testThenAcceptBoth() {
1803	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1804	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1805	<	AddAction r = new AddAction();
1806	<	CompletableFuture<Void> g = f.thenAcceptBoth(f2, r);
1807	<	f.complete(one);
1808	<	checkIncomplete(g);
1809	<	f2.complete(two);
1810	<	checkCompletedNormally(g, null);
1811	<	assertEquals(r.value, 3);
1812	<
1813	<	r = new AddAction();
1814	<	f = new CompletableFuture<Integer>();
1815	<	f.complete(one);
1816	<	f2 = new CompletableFuture<Integer>();
1817	<	g = f.thenAcceptBoth(f2, r);
1818	<	checkIncomplete(g);
1819	<	f2.complete(two);
1820	<	checkCompletedNormally(g, null);
1821	<	assertEquals(r.value, 3);
1822	<	}
1802	>	public void testThenAcceptBoth_normalCompletion() {
1803	>	for (ExecutionMode m : ExecutionMode.values())
1804	>	for (boolean fFirst : new boolean[] { true, false })
1805	>	for (Integer v1 : new Integer[] { 1, null })
1806	>	for (Integer v2 : new Integer[] { 2, null })
1807	>	{
1808	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1809	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1810	>	final SubtractAction r1 = new SubtractAction(m);
1811	>	final SubtractAction r2 = new SubtractAction(m);
1812	>	final SubtractAction r3 = new SubtractAction(m);
1813	>
1814	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1815	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1816	>	final Integer w1 =  fFirst ? v1 : v2;
1817	>	final Integer w2 = !fFirst ? v1 : v2;
1818	>
1819	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1820	>	assertTrue(fst.complete(w1));
1821	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1822	>	checkIncomplete(h1);
1823	>	checkIncomplete(h2);
1824	>	r1.assertNotInvoked();
1825	>	r2.assertNotInvoked();
1826	>	assertTrue(snd.complete(w2));
1827	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1828	>
1829	>	checkCompletedNormally(h1, null);
1830	>	checkCompletedNormally(h2, null);
1831	>	checkCompletedNormally(h3, null);
1832	>	r1.assertValue(subtract(v1, v2));
1833	>	r2.assertValue(subtract(v1, v2));
1834	>	r3.assertValue(subtract(v1, v2));
1835	>	checkCompletedNormally(f, v1);
1836	>	checkCompletedNormally(g, v2);
1837	>	}}
1838
1839		/**
1840		* thenAcceptBoth result completes exceptionally after exceptional
1841		* completion of either source
1842		*/
1843	<	public void testThenAcceptBoth2() {
1844	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1845	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1846	<	AddAction r = new AddAction();
1847	<	CompletableFuture<Void> g = f.thenAcceptBoth(f2, r);
1848	<	f.completeExceptionally(new CFException());
1849	<	f2.complete(two);
1850	<	checkCompletedWithWrappedCFException(g);
1851	<
1852	<	r = new AddAction();
1853	<	f = new CompletableFuture<Integer>();
1854	<	f.complete(one);
1855	<	f2 = new CompletableFuture<Integer>();
1856	<	g = f.thenAcceptBoth(f2, r);
1857	<	f2.completeExceptionally(new CFException());
1858	<	checkCompletedWithWrappedCFException(g);
1859	<	}
1843	>	public void testThenAcceptBoth_exceptionalCompletion() throws Throwable {
1844	>	for (ExecutionMode m : ExecutionMode.values())
1845	>	for (boolean fFirst : new boolean[] { true, false })
1846	>	for (boolean failFirst : new boolean[] { true, false })
1847	>	for (Integer v1 : new Integer[] { 1, null })
1848	>	{
1849	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1850	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1851	>	final CFException ex = new CFException();
1852	>	final SubtractAction r1 = new SubtractAction(m);
1853	>	final SubtractAction r2 = new SubtractAction(m);
1854	>	final SubtractAction r3 = new SubtractAction(m);
1855	>
1856	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1857	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1858	>	final Callable<Boolean> complete1 = failFirst ?
1859	>	() -> fst.completeExceptionally(ex) :
1860	>	() -> fst.complete(v1);
1861	>	final Callable<Boolean> complete2 = failFirst ?
1862	>	() -> snd.complete(v1) :
1863	>	() -> snd.completeExceptionally(ex);
1864	>
1865	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1866	>	assertTrue(complete1.call());
1867	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1868	>	checkIncomplete(h1);
1869	>	checkIncomplete(h2);
1870	>	assertTrue(complete2.call());
1871	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1872	>
1873	>	checkCompletedWithWrappedException(h1, ex);
1874	>	checkCompletedWithWrappedException(h2, ex);
1875	>	checkCompletedWithWrappedException(h3, ex);
1876	>	r1.assertNotInvoked();
1877	>	r2.assertNotInvoked();
1878	>	r3.assertNotInvoked();
1879	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1880	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
1881	>	}}
1882
1883		/**
1884	<	* thenAcceptBoth result completes exceptionally if action does
1884	>	* thenAcceptBoth result completes exceptionally if either source cancelled
1885		*/
1886	<	public void testThenAcceptBoth3() {
1887	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1888	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1889	<	FailingBiConsumer r = new FailingBiConsumer();
1890	<	CompletableFuture<Void> g = f.thenAcceptBoth(f2, r);
1891	<	f.complete(one);
1892	<	checkIncomplete(g);
1893	<	f2.complete(two);
1894	<	checkCompletedWithWrappedCFException(g);
1895	<	}
1886	>	public void testThenAcceptBoth_sourceCancelled() throws Throwable {
1887	>	for (ExecutionMode m : ExecutionMode.values())
1888	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
1889	>	for (boolean fFirst : new boolean[] { true, false })
1890	>	for (boolean failFirst : new boolean[] { true, false })
1891	>	for (Integer v1 : new Integer[] { 1, null })
1892	>	{
1893	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1894	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1895	>	final SubtractAction r1 = new SubtractAction(m);
1896	>	final SubtractAction r2 = new SubtractAction(m);
1897	>	final SubtractAction r3 = new SubtractAction(m);
1898	>
1899	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1900	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1901	>	final Callable<Boolean> complete1 = failFirst ?
1902	>	() -> fst.cancel(mayInterruptIfRunning) :
1903	>	() -> fst.complete(v1);
1904	>	final Callable<Boolean> complete2 = failFirst ?
1905	>	() -> snd.complete(v1) :
1906	>	() -> snd.cancel(mayInterruptIfRunning);
1907	>
1908	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1909	>	assertTrue(complete1.call());
1910	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1911	>	checkIncomplete(h1);
1912	>	checkIncomplete(h2);
1913	>	assertTrue(complete2.call());
1914	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1915	>
1916	>	checkCompletedWithWrappedCancellationException(h1);
1917	>	checkCompletedWithWrappedCancellationException(h2);
1918	>	checkCompletedWithWrappedCancellationException(h3);
1919	>	r1.assertNotInvoked();
1920	>	r2.assertNotInvoked();
1921	>	r3.assertNotInvoked();
1922	>	checkCompletedNormally(failFirst ? snd : fst, v1);
1923	>	checkCancelled(failFirst ? fst : snd);
1924	>	}}
1925
1926		/**
1927	<	* thenAcceptBoth result completes exceptionally if either source cancelled
1927	>	* thenAcceptBoth result completes exceptionally if action does
1928		*/
1929	<	public void testThenAcceptBoth4() {
1930	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1931	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1932	<	AddAction r = new AddAction();
1933	<	CompletableFuture<Void> g = f.thenAcceptBoth(f2, r);
1934	<	assertTrue(f.cancel(true));
1935	<	f2.complete(two);
1936	<	checkCompletedWithWrappedCancellationException(g);
1937	<	f = new CompletableFuture<Integer>();
1938	<	f2 = new CompletableFuture<Integer>();
1939	<	r = new AddAction();
1940	<	g = f.thenAcceptBoth(f2, r);
1941	<	f.complete(one);
1942	<	assertTrue(f2.cancel(true));
1943	<	checkCompletedWithWrappedCancellationException(g);
1944	<	}
1929	>	public void testThenAcceptBoth_actionFailed() {
1930	>	for (ExecutionMode m : ExecutionMode.values())
1931	>	for (boolean fFirst : new boolean[] { true, false })
1932	>	for (Integer v1 : new Integer[] { 1, null })
1933	>	for (Integer v2 : new Integer[] { 2, null })
1934	>	{
1935	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1936	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1937	>	final FailingBiConsumer r1 = new FailingBiConsumer(m);
1938	>	final FailingBiConsumer r2 = new FailingBiConsumer(m);
1939	>	final FailingBiConsumer r3 = new FailingBiConsumer(m);
1940	>
1941	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1942	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1943	>	final Integer w1 =  fFirst ? v1 : v2;
1944	>	final Integer w2 = !fFirst ? v1 : v2;
1945	>
1946	>	final CompletableFuture<Void> h1 = m.thenAcceptBoth(f, g, r1);
1947	>	assertTrue(fst.complete(w1));
1948	>	final CompletableFuture<Void> h2 = m.thenAcceptBoth(f, g, r2);
1949	>	assertTrue(snd.complete(w2));
1950	>	final CompletableFuture<Void> h3 = m.thenAcceptBoth(f, g, r3);
1951	>
1952	>	checkCompletedWithWrappedException(h1, r1.ex);
1953	>	checkCompletedWithWrappedException(h2, r2.ex);
1954	>	checkCompletedWithWrappedException(h3, r3.ex);
1955	>	r1.assertInvoked();
1956	>	r2.assertInvoked();
1957	>	r3.assertInvoked();
1958	>	checkCompletedNormally(f, v1);
1959	>	checkCompletedNormally(g, v2);
1960	>	}}
1961
1962		/**
1963		* runAfterBoth result completes normally after normal
1964		* completion of sources
1965		*/
1966	<	public void testRunAfterBoth() {
1967	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1968	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1969	<	Noop r = new Noop();
1970	<	CompletableFuture<Void> g = f.runAfterBoth(f2, r);
1971	<	f.complete(one);
1972	<	checkIncomplete(g);
1973	<	f2.complete(two);
1974	<	checkCompletedNormally(g, null);
1975	<	assertTrue(r.ran);
1976	<
1977	<	r = new Noop();
1978	<	f = new CompletableFuture<Integer>();
1979	<	f.complete(one);
1980	<	f2 = new CompletableFuture<Integer>();
1981	<	g = f.runAfterBoth(f2, r);
1982	<	checkIncomplete(g);
1983	<	f2.complete(two);
1984	<	checkCompletedNormally(g, null);
1985	<	assertTrue(r.ran);
1986	<	}
1966	>	public void testRunAfterBoth_normalCompletion() {
1967	>	for (ExecutionMode m : ExecutionMode.values())
1968	>	for (boolean fFirst : new boolean[] { true, false })
1969	>	for (Integer v1 : new Integer[] { 1, null })
1970	>	for (Integer v2 : new Integer[] { 2, null })
1971	>	{
1972	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
1973	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
1974	>	final Noop r1 = new Noop(m);
1975	>	final Noop r2 = new Noop(m);
1976	>	final Noop r3 = new Noop(m);
1977	>
1978	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
1979	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
1980	>	final Integer w1 =  fFirst ? v1 : v2;
1981	>	final Integer w2 = !fFirst ? v1 : v2;
1982	>
1983	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
1984	>	assertTrue(fst.complete(w1));
1985	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
1986	>	checkIncomplete(h1);
1987	>	checkIncomplete(h2);
1988	>	r1.assertNotInvoked();
1989	>	r2.assertNotInvoked();
1990	>	assertTrue(snd.complete(w2));
1991	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
1992	>
1993	>	checkCompletedNormally(h1, null);
1994	>	checkCompletedNormally(h2, null);
1995	>	checkCompletedNormally(h3, null);
1996	>	r1.assertInvoked();
1997	>	r2.assertInvoked();
1998	>	r3.assertInvoked();
1999	>	checkCompletedNormally(f, v1);
2000	>	checkCompletedNormally(g, v2);
2001	>	}}
2002
2003		/**
2004		* runAfterBoth result completes exceptionally after exceptional
2005		* completion of either source
2006		*/
2007	<	public void testRunAfterBoth2() {
2008	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2009	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2010	<	Noop r = new Noop();
2011	<	CompletableFuture<Void> g = f.runAfterBoth(f2, r);
2012	<	f.completeExceptionally(new CFException());
2013	<	f2.complete(two);
2014	<	checkCompletedWithWrappedCFException(g);
2015	<
2016	<	r = new Noop();
2017	<	f = new CompletableFuture<Integer>();
2018	<	f.complete(one);
2019	<	f2 = new CompletableFuture<Integer>();
2020	<	g = f.runAfterBoth(f2, r);
2021	<	f2.completeExceptionally(new CFException());
2022	<	checkCompletedWithWrappedCFException(g);
2023	<	}
2007	>	public void testRunAfterBoth_exceptionalCompletion() throws Throwable {
2008	>	for (ExecutionMode m : ExecutionMode.values())
2009	>	for (boolean fFirst : new boolean[] { true, false })
2010	>	for (boolean failFirst : new boolean[] { true, false })
2011	>	for (Integer v1 : new Integer[] { 1, null })
2012	>	{
2013	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2014	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2015	>	final CFException ex = new CFException();
2016	>	final Noop r1 = new Noop(m);
2017	>	final Noop r2 = new Noop(m);
2018	>	final Noop r3 = new Noop(m);
2019	>
2020	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2021	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2022	>	final Callable<Boolean> complete1 = failFirst ?
2023	>	() -> fst.completeExceptionally(ex) :
2024	>	() -> fst.complete(v1);
2025	>	final Callable<Boolean> complete2 = failFirst ?
2026	>	() -> snd.complete(v1) :
2027	>	() -> snd.completeExceptionally(ex);
2028	>
2029	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2030	>	assertTrue(complete1.call());
2031	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2032	>	checkIncomplete(h1);
2033	>	checkIncomplete(h2);
2034	>	assertTrue(complete2.call());
2035	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2036	>
2037	>	checkCompletedWithWrappedException(h1, ex);
2038	>	checkCompletedWithWrappedException(h2, ex);
2039	>	checkCompletedWithWrappedException(h3, ex);
2040	>	r1.assertNotInvoked();
2041	>	r2.assertNotInvoked();
2042	>	r3.assertNotInvoked();
2043	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2044	>	checkCompletedExceptionally(failFirst ? fst : snd, ex);
2045	>	}}
2046
2047		/**
2048	<	* runAfterBoth result completes exceptionally if action does
2048	>	* runAfterBoth result completes exceptionally if either source cancelled
2049		*/
2050	<	public void testRunAfterBoth3() {
2051	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2052	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2053	<	FailingNoop r = new FailingNoop();
2054	<	CompletableFuture<Void> g = f.runAfterBoth(f2, r);
2055	<	f.complete(one);
2056	<	checkIncomplete(g);
2057	<	f2.complete(two);
2058	<	checkCompletedWithWrappedCFException(g);
2059	<	}
2050	>	public void testRunAfterBoth_sourceCancelled() throws Throwable {
2051	>	for (ExecutionMode m : ExecutionMode.values())
2052	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2053	>	for (boolean fFirst : new boolean[] { true, false })
2054	>	for (boolean failFirst : new boolean[] { true, false })
2055	>	for (Integer v1 : new Integer[] { 1, null })
2056	>	{
2057	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2058	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2059	>	final Noop r1 = new Noop(m);
2060	>	final Noop r2 = new Noop(m);
2061	>	final Noop r3 = new Noop(m);
2062	>
2063	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2064	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2065	>	final Callable<Boolean> complete1 = failFirst ?
2066	>	() -> fst.cancel(mayInterruptIfRunning) :
2067	>	() -> fst.complete(v1);
2068	>	final Callable<Boolean> complete2 = failFirst ?
2069	>	() -> snd.complete(v1) :
2070	>	() -> snd.cancel(mayInterruptIfRunning);
2071	>
2072	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2073	>	assertTrue(complete1.call());
2074	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2075	>	checkIncomplete(h1);
2076	>	checkIncomplete(h2);
2077	>	assertTrue(complete2.call());
2078	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2079	>
2080	>	checkCompletedWithWrappedCancellationException(h1);
2081	>	checkCompletedWithWrappedCancellationException(h2);
2082	>	checkCompletedWithWrappedCancellationException(h3);
2083	>	r1.assertNotInvoked();
2084	>	r2.assertNotInvoked();
2085	>	r3.assertNotInvoked();
2086	>	checkCompletedNormally(failFirst ? snd : fst, v1);
2087	>	checkCancelled(failFirst ? fst : snd);
2088	>	}}
2089
2090		/**
2091	<	* runAfterBoth result completes exceptionally if either source cancelled
2091	>	* runAfterBoth result completes exceptionally if action does
2092		*/
2093	<	public void testRunAfterBoth4() {
2094	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2095	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2096	<	Noop r = new Noop();
2097	<	CompletableFuture<Void> g = f.runAfterBoth(f2, r);
2098	<	assertTrue(f.cancel(true));
2099	<	f2.complete(two);
2100	<	checkCompletedWithWrappedCancellationException(g);
2101	<	f = new CompletableFuture<Integer>();
2102	<	f2 = new CompletableFuture<Integer>();
2103	<	r = new Noop();
2104	<	g = f.runAfterBoth(f2, r);
2105	<	f.complete(one);
2106	<	assertTrue(f2.cancel(true));
2107	<	checkCompletedWithWrappedCancellationException(g);
2108	<	}
2093	>	public void testRunAfterBoth_actionFailed() {
2094	>	for (ExecutionMode m : ExecutionMode.values())
2095	>	for (boolean fFirst : new boolean[] { true, false })
2096	>	for (Integer v1 : new Integer[] { 1, null })
2097	>	for (Integer v2 : new Integer[] { 2, null })
2098	>	{
2099	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2100	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2101	>	final FailingRunnable r1 = new FailingRunnable(m);
2102	>	final FailingRunnable r2 = new FailingRunnable(m);
2103	>	final FailingRunnable r3 = new FailingRunnable(m);
2104	>
2105	>	final CompletableFuture<Integer> fst =  fFirst ? f : g;
2106	>	final CompletableFuture<Integer> snd = !fFirst ? f : g;
2107	>	final Integer w1 =  fFirst ? v1 : v2;
2108	>	final Integer w2 = !fFirst ? v1 : v2;
2109	>
2110	>	final CompletableFuture<Void> h1 = m.runAfterBoth(f, g, r1);
2111	>	assertTrue(fst.complete(w1));
2112	>	final CompletableFuture<Void> h2 = m.runAfterBoth(f, g, r2);
2113	>	assertTrue(snd.complete(w2));
2114	>	final CompletableFuture<Void> h3 = m.runAfterBoth(f, g, r3);
2115	>
2116	>	checkCompletedWithWrappedException(h1, r1.ex);
2117	>	checkCompletedWithWrappedException(h2, r2.ex);
2118	>	checkCompletedWithWrappedException(h3, r3.ex);
2119	>	r1.assertInvoked();
2120	>	r2.assertInvoked();
2121	>	r3.assertInvoked();
2122	>	checkCompletedNormally(f, v1);
2123	>	checkCompletedNormally(g, v2);
2124	>	}}
2125
2126		/**
2127		* applyToEither result completes normally after normal completion
2128		* of either source
2129		*/
2130	<	public void testApplyToEither() {
2131	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2132	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2133	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
2134	<	f.complete(one);
2135	<	checkCompletedNormally(g, two);
2136	<	f2.complete(one);
2137	<	checkCompletedNormally(g, two);
2138	<
2139	<	f = new CompletableFuture<Integer>();
2140	<	f.complete(one);
2141	<	f2 = new CompletableFuture<Integer>();
2142	<	g = f.applyToEither(f2, inc);
2143	<	checkCompletedNormally(g, two);
2144	<	}
2130	>	public void testApplyToEither_normalCompletion() {
2131	>	for (ExecutionMode m : ExecutionMode.values())
2132	>	for (Integer v1 : new Integer[] { 1, null })
2133	>	for (Integer v2 : new Integer[] { 2, null })
2134	>	{
2135	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2136	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2137	>	final IncFunction[] rs = new IncFunction[6];
2138	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2139	>
2140	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2141	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2142	>	checkIncomplete(h0);
2143	>	checkIncomplete(h1);
2144	>	rs[0].assertNotInvoked();
2145	>	rs[1].assertNotInvoked();
2146	>	f.complete(v1);
2147	>	checkCompletedNormally(h0, inc(v1));
2148	>	checkCompletedNormally(h1, inc(v1));
2149	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2150	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2151	>	checkCompletedNormally(h2, inc(v1));
2152	>	checkCompletedNormally(h3, inc(v1));
2153	>	g.complete(v2);
2154	>
2155	>	// unspecified behavior - both source completions available
2156	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2157	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2158	>	rs[4].assertValue(h4.join());
2159	>	rs[5].assertValue(h5.join());
2160	>	assertTrue(Objects.equals(inc(v1), h4.join()) ||
2161	>	Objects.equals(inc(v2), h4.join()));
2162	>	assertTrue(Objects.equals(inc(v1), h5.join()) ||
2163	>	Objects.equals(inc(v2), h5.join()));
2164	>
2165	>	checkCompletedNormally(f, v1);
2166	>	checkCompletedNormally(g, v2);
2167	>	checkCompletedNormally(h0, inc(v1));
2168	>	checkCompletedNormally(h1, inc(v1));
2169	>	checkCompletedNormally(h2, inc(v1));
2170	>	checkCompletedNormally(h3, inc(v1));
2171	>	for (int i = 0; i < 4; i++) rs[i].assertValue(inc(v1));
2172	>	}}
2173
2174		/**
2175		* applyToEither result completes exceptionally after exceptional
2176		* completion of either source
2177		*/
2178	<	public void testApplyToEither2() {
2179	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2180	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2181	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
2182	<	f.completeExceptionally(new CFException());
2183	<	f2.complete(one);
2184	<	checkCompletedWithWrappedCFException(g);
2178	>	public void testApplyToEither_exceptionalCompletion() {
2179	>	for (ExecutionMode m : ExecutionMode.values())
2180	>	for (Integer v1 : new Integer[] { 1, null })
2181	>	{
2182	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2183	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2184	>	final CFException ex = new CFException();
2185	>	final IncFunction[] rs = new IncFunction[6];
2186	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2187	>
2188	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2189	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2190	>	checkIncomplete(h0);
2191	>	checkIncomplete(h1);
2192	>	rs[0].assertNotInvoked();
2193	>	rs[1].assertNotInvoked();
2194	>	f.completeExceptionally(ex);
2195	>	checkCompletedWithWrappedException(h0, ex);
2196	>	checkCompletedWithWrappedException(h1, ex);
2197	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2198	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2199	>	checkCompletedWithWrappedException(h2, ex);
2200	>	checkCompletedWithWrappedException(h3, ex);
2201	>	g.complete(v1);
2202	>
2203	>	// unspecified behavior - both source completions available
2204	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2205	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2206	>	try {
2207	>	assertEquals(inc(v1), h4.join());
2208	>	rs[4].assertValue(inc(v1));
2209	>	} catch (CompletionException ok) {
2210	>	checkCompletedWithWrappedException(h4, ex);
2211	>	rs[4].assertNotInvoked();
2212	>	}
2213	>	try {
2214	>	assertEquals(inc(v1), h5.join());
2215	>	rs[5].assertValue(inc(v1));
2216	>	} catch (CompletionException ok) {
2217	>	checkCompletedWithWrappedException(h5, ex);
2218	>	rs[5].assertNotInvoked();
2219	>	}
2220
2221	<	f = new CompletableFuture<Integer>();
2222	<	f2 = new CompletableFuture<Integer>();
2223	<	f2.completeExceptionally(new CFException());
2224	<	g = f.applyToEither(f2, inc);
2225	<	checkCompletedWithWrappedCFException(g);
2226	<	}
2221	>	checkCompletedExceptionally(f, ex);
2222	>	checkCompletedNormally(g, v1);
2223	>	checkCompletedWithWrappedException(h0, ex);
2224	>	checkCompletedWithWrappedException(h1, ex);
2225	>	checkCompletedWithWrappedException(h2, ex);
2226	>	checkCompletedWithWrappedException(h3, ex);
2227	>	checkCompletedWithWrappedException(h4, ex);
2228	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2229	>	}}
2230	>
2231	>	public void testApplyToEither_exceptionalCompletion2() {
2232	>	for (ExecutionMode m : ExecutionMode.values())
2233	>	for (boolean fFirst : new boolean[] { true, false })
2234	>	for (Integer v1 : new Integer[] { 1, null })
2235	>	{
2236	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2237	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2238	>	final CFException ex = new CFException();
2239	>	final IncFunction[] rs = new IncFunction[6];
2240	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2241	>
2242	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2243	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2244	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2245	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2246	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2247	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2248
2249	<	/**
2250	<	* applyToEither result completes exceptionally if action does
2251	<	*/
2252	<	public void testApplyToEither3() {
2253	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2254	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2255	<	FailingFunction r = new FailingFunction();
2256	<	CompletableFuture<Integer> g = f.applyToEither(f2, r);
2257	<	f2.complete(two);
2258	<	checkCompletedWithWrappedCFException(g);
2259	<	}
2249	>	// unspecified behavior - both source completions available
2250	>	try {
2251	>	assertEquals(inc(v1), h0.join());
2252	>	rs[0].assertValue(inc(v1));
2253	>	} catch (CompletionException ok) {
2254	>	checkCompletedWithWrappedException(h0, ex);
2255	>	rs[0].assertNotInvoked();
2256	>	}
2257	>	try {
2258	>	assertEquals(inc(v1), h1.join());
2259	>	rs[1].assertValue(inc(v1));
2260	>	} catch (CompletionException ok) {
2261	>	checkCompletedWithWrappedException(h1, ex);
2262	>	rs[1].assertNotInvoked();
2263	>	}
2264	>	try {
2265	>	assertEquals(inc(v1), h2.join());
2266	>	rs[2].assertValue(inc(v1));
2267	>	} catch (CompletionException ok) {
2268	>	checkCompletedWithWrappedException(h2, ex);
2269	>	rs[2].assertNotInvoked();
2270	>	}
2271	>	try {
2272	>	assertEquals(inc(v1), h3.join());
2273	>	rs[3].assertValue(inc(v1));
2274	>	} catch (CompletionException ok) {
2275	>	checkCompletedWithWrappedException(h3, ex);
2276	>	rs[3].assertNotInvoked();
2277	>	}
2278
2279	<	/**
2280	<	* applyToEither result completes exceptionally if either source cancelled
2281	<	*/
886	<	public void testApplyToEither4() {
887	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
888	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
889	<	CompletableFuture<Integer> g = f.applyToEither(f2, inc);
890	<	assertTrue(f.cancel(true));
891	<	checkCompletedWithWrappedCancellationException(g);
892	<	f = new CompletableFuture<Integer>();
893	<	f2 = new CompletableFuture<Integer>();
894	<	assertTrue(f2.cancel(true));
895	<	checkCompletedWithWrappedCancellationException(g);
896	<	}
2279	>	checkCompletedNormally(f, v1);
2280	>	checkCompletedExceptionally(g, ex);
2281	>	}}
2282
2283		/**
2284	<	* acceptEither result completes normally after normal completion
900	<	* of either source
2284	>	* applyToEither result completes exceptionally if either source cancelled
2285		*/
2286	<	public void testAcceptEither() {
2287	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2288	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2289	<	IncAction r = new IncAction();
2290	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2291	<	f.complete(one);
2292	<	checkCompletedNormally(g, null);
2293	<	f2.complete(one);
2294	<	checkCompletedNormally(g, null);
2295	<	assertEquals(r.value, 2);
2296	<
2297	<	r = new IncAction();
2298	<	f = new CompletableFuture<Integer>();
2299	<	f.complete(one);
2300	<	f2 = new CompletableFuture<Integer>();
2301	<	g = f.acceptEither(f2, r);
2302	<	checkCompletedNormally(g, null);
2303	<	assertEquals(r.value, 2);
2304	<	}
2286	>	public void testApplyToEither_sourceCancelled() {
2287	>	for (ExecutionMode m : ExecutionMode.values())
2288	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2289	>	for (Integer v1 : new Integer[] { 1, null })
2290	>	{
2291	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2292	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2293	>	final IncFunction[] rs = new IncFunction[6];
2294	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2295	>
2296	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2297	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2298	>	checkIncomplete(h0);
2299	>	checkIncomplete(h1);
2300	>	rs[0].assertNotInvoked();
2301	>	rs[1].assertNotInvoked();
2302	>	f.cancel(mayInterruptIfRunning);
2303	>	checkCompletedWithWrappedCancellationException(h0);
2304	>	checkCompletedWithWrappedCancellationException(h1);
2305	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2306	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2307	>	checkCompletedWithWrappedCancellationException(h2);
2308	>	checkCompletedWithWrappedCancellationException(h3);
2309	>	g.complete(v1);
2310	>
2311	>	// unspecified behavior - both source completions available
2312	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2313	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2314	>	try {
2315	>	assertEquals(inc(v1), h4.join());
2316	>	rs[4].assertValue(inc(v1));
2317	>	} catch (CompletionException ok) {
2318	>	checkCompletedWithWrappedCancellationException(h4);
2319	>	rs[4].assertNotInvoked();
2320	>	}
2321	>	try {
2322	>	assertEquals(inc(v1), h5.join());
2323	>	rs[5].assertValue(inc(v1));
2324	>	} catch (CompletionException ok) {
2325	>	checkCompletedWithWrappedCancellationException(h5);
2326	>	rs[5].assertNotInvoked();
2327	>	}
2328
2329	<	/**
2330	<	* acceptEither result completes exceptionally after exceptional
2331	<	* completion of either source
2332	<	*/
2333	<	public void testAcceptEither2() {
2334	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2335	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2336	<	IncAction r = new IncAction();
2337	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2338	<	f.completeExceptionally(new CFException());
2339	<	f2.complete(one);
2340	<	checkCompletedWithWrappedCFException(g);
2329	>	checkCancelled(f);
2330	>	checkCompletedNormally(g, v1);
2331	>	checkCompletedWithWrappedCancellationException(h0);
2332	>	checkCompletedWithWrappedCancellationException(h1);
2333	>	checkCompletedWithWrappedCancellationException(h2);
2334	>	checkCompletedWithWrappedCancellationException(h3);
2335	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2336	>	}}
2337	>
2338	>	public void testApplyToEither_sourceCancelled2() {
2339	>	for (ExecutionMode m : ExecutionMode.values())
2340	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2341	>	for (boolean fFirst : new boolean[] { true, false })
2342	>	for (Integer v1 : new Integer[] { 1, null })
2343	>	{
2344	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2345	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2346	>	final IncFunction[] rs = new IncFunction[6];
2347	>	for (int i = 0; i < rs.length; i++) rs[i] = new IncFunction(m);
2348	>
2349	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2350	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2351	>	assertTrue(fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2352	>	assertTrue(!fFirst ? f.complete(v1) : g.cancel(mayInterruptIfRunning));
2353	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2354	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2355
2356	<	r = new IncAction();
2357	<	f = new CompletableFuture<Integer>();
2358	<	f2 = new CompletableFuture<Integer>();
2359	<	f2.completeExceptionally(new CFException());
2360	<	g = f.acceptEither(f2, r);
2361	<	checkCompletedWithWrappedCFException(g);
2362	<	}
2356	>	// unspecified behavior - both source completions available
2357	>	try {
2358	>	assertEquals(inc(v1), h0.join());
2359	>	rs[0].assertValue(inc(v1));
2360	>	} catch (CompletionException ok) {
2361	>	checkCompletedWithWrappedCancellationException(h0);
2362	>	rs[0].assertNotInvoked();
2363	>	}
2364	>	try {
2365	>	assertEquals(inc(v1), h1.join());
2366	>	rs[1].assertValue(inc(v1));
2367	>	} catch (CompletionException ok) {
2368	>	checkCompletedWithWrappedCancellationException(h1);
2369	>	rs[1].assertNotInvoked();
2370	>	}
2371	>	try {
2372	>	assertEquals(inc(v1), h2.join());
2373	>	rs[2].assertValue(inc(v1));
2374	>	} catch (CompletionException ok) {
2375	>	checkCompletedWithWrappedCancellationException(h2);
2376	>	rs[2].assertNotInvoked();
2377	>	}
2378	>	try {
2379	>	assertEquals(inc(v1), h3.join());
2380	>	rs[3].assertValue(inc(v1));
2381	>	} catch (CompletionException ok) {
2382	>	checkCompletedWithWrappedCancellationException(h3);
2383	>	rs[3].assertNotInvoked();
2384	>	}
2385
2386	<	/**
2387	<	* acceptEither result completes exceptionally if action does
2388	<	*/
946	<	public void testAcceptEither3() {
947	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
948	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
949	<	FailingConsumer r = new FailingConsumer();
950	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
951	<	f2.complete(two);
952	<	checkCompletedWithWrappedCFException(g);
953	<	}
2386	>	checkCompletedNormally(f, v1);
2387	>	checkCancelled(g);
2388	>	}}
2389
2390		/**
2391	<	* acceptEither result completes exceptionally if either source cancelled
2391	>	* applyToEither result completes exceptionally if action does
2392		*/
2393	<	public void testAcceptEither4() {
2394	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2395	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2396	<	IncAction r = new IncAction();
2397	<	CompletableFuture<Void> g = f.acceptEither(f2, r);
2398	<	assertTrue(f.cancel(true));
2399	<	checkCompletedWithWrappedCancellationException(g);
2400	<	f = new CompletableFuture<Integer>();
2401	<	f2 = new CompletableFuture<Integer>();
2402	<	assertTrue(f2.cancel(true));
2403	<	checkCompletedWithWrappedCancellationException(g);
2404	<	}
2405	<
2393	>	public void testApplyToEither_actionFailed() {
2394	>	for (ExecutionMode m : ExecutionMode.values())
2395	>	for (Integer v1 : new Integer[] { 1, null })
2396	>	for (Integer v2 : new Integer[] { 2, null })
2397	>	{
2398	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2399	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2400	>	final FailingFunction[] rs = new FailingFunction[6];
2401	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingFunction(m);
2402	>
2403	>	final CompletableFuture<Integer> h0 = m.applyToEither(f, g, rs[0]);
2404	>	final CompletableFuture<Integer> h1 = m.applyToEither(g, f, rs[1]);
2405	>	f.complete(v1);
2406	>	final CompletableFuture<Integer> h2 = m.applyToEither(f, g, rs[2]);
2407	>	final CompletableFuture<Integer> h3 = m.applyToEither(g, f, rs[3]);
2408	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2409	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2410	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2411	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2412	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2413	>
2414	>	g.complete(v2);
2415	>
2416	>	// unspecified behavior - both source completions available
2417	>	final CompletableFuture<Integer> h4 = m.applyToEither(f, g, rs[4]);
2418	>	final CompletableFuture<Integer> h5 = m.applyToEither(g, f, rs[5]);
2419	>
2420	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2421	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2422	>	Objects.equals(v2, rs[4].value));
2423	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2424	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2425	>	Objects.equals(v2, rs[5].value));
2426	>
2427	>	checkCompletedNormally(f, v1);
2428	>	checkCompletedNormally(g, v2);
2429	>	}}
2430
2431		/**
2432	<	* runAfterEither result completes normally after normal completion
2432	>	* acceptEither result completes normally after normal completion
2433		* of either source
2434		*/
2435	<	public void testRunAfterEither() {
2436	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2437	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2438	<	Noop r = new Noop();
2439	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2440	<	f.complete(one);
2441	<	checkCompletedNormally(g, null);
2442	<	f2.complete(one);
2443	<	checkCompletedNormally(g, null);
2444	<	assertTrue(r.ran);
2445	<
2446	<	r = new Noop();
2447	<	f = new CompletableFuture<Integer>();
2448	<	f.complete(one);
2449	<	f2 = new CompletableFuture<Integer>();
2450	<	g = f.runAfterEither(f2, r);
2451	<	checkCompletedNormally(g, null);
2452	<	assertTrue(r.ran);
2453	<	}
2435	>	public void testAcceptEither_normalCompletion() {
2436	>	for (ExecutionMode m : ExecutionMode.values())
2437	>	for (Integer v1 : new Integer[] { 1, null })
2438	>	for (Integer v2 : new Integer[] { 2, null })
2439	>	{
2440	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2441	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2442	>	final NoopConsumer[] rs = new NoopConsumer[6];
2443	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2444	>
2445	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2446	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2447	>	checkIncomplete(h0);
2448	>	checkIncomplete(h1);
2449	>	rs[0].assertNotInvoked();
2450	>	rs[1].assertNotInvoked();
2451	>	f.complete(v1);
2452	>	checkCompletedNormally(h0, null);
2453	>	checkCompletedNormally(h1, null);
2454	>	rs[0].assertValue(v1);
2455	>	rs[1].assertValue(v1);
2456	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2457	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2458	>	checkCompletedNormally(h2, null);
2459	>	checkCompletedNormally(h3, null);
2460	>	rs[2].assertValue(v1);
2461	>	rs[3].assertValue(v1);
2462	>	g.complete(v2);
2463	>
2464	>	// unspecified behavior - both source completions available
2465	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2466	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2467	>	checkCompletedNormally(h4, null);
2468	>	checkCompletedNormally(h5, null);
2469	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2470	>	Objects.equals(v2, rs[4].value));
2471	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2472	>	Objects.equals(v2, rs[5].value));
2473	>
2474	>	checkCompletedNormally(f, v1);
2475	>	checkCompletedNormally(g, v2);
2476	>	checkCompletedNormally(h0, null);
2477	>	checkCompletedNormally(h1, null);
2478	>	checkCompletedNormally(h2, null);
2479	>	checkCompletedNormally(h3, null);
2480	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2481	>	}}
2482
2483		/**
2484	<	* runAfterEither result completes exceptionally after exceptional
2484	>	* acceptEither result completes exceptionally after exceptional
2485		* completion of either source
2486		*/
2487	<	public void testRunAfterEither2() {
2488	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2489	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2490	<	Noop r = new Noop();
2491	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2492	<	f.completeExceptionally(new CFException());
2493	<	f2.complete(one);
2494	<	checkCompletedWithWrappedCFException(g);
2487	>	public void testAcceptEither_exceptionalCompletion() {
2488	>	for (ExecutionMode m : ExecutionMode.values())
2489	>	for (Integer v1 : new Integer[] { 1, null })
2490	>	{
2491	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2492	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2493	>	final CFException ex = new CFException();
2494	>	final NoopConsumer[] rs = new NoopConsumer[6];
2495	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2496	>
2497	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2498	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2499	>	checkIncomplete(h0);
2500	>	checkIncomplete(h1);
2501	>	rs[0].assertNotInvoked();
2502	>	rs[1].assertNotInvoked();
2503	>	f.completeExceptionally(ex);
2504	>	checkCompletedWithWrappedException(h0, ex);
2505	>	checkCompletedWithWrappedException(h1, ex);
2506	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2507	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2508	>	checkCompletedWithWrappedException(h2, ex);
2509	>	checkCompletedWithWrappedException(h3, ex);
2510	>
2511	>	g.complete(v1);
2512	>
2513	>	// unspecified behavior - both source completions available
2514	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2515	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2516	>	try {
2517	>	assertNull(h4.join());
2518	>	rs[4].assertValue(v1);
2519	>	} catch (CompletionException ok) {
2520	>	checkCompletedWithWrappedException(h4, ex);
2521	>	rs[4].assertNotInvoked();
2522	>	}
2523	>	try {
2524	>	assertNull(h5.join());
2525	>	rs[5].assertValue(v1);
2526	>	} catch (CompletionException ok) {
2527	>	checkCompletedWithWrappedException(h5, ex);
2528	>	rs[5].assertNotInvoked();
2529	>	}
2530
2531	<	r = new Noop();
2532	<	f = new CompletableFuture<Integer>();
2533	<	f2 = new CompletableFuture<Integer>();
2534	<	f2.completeExceptionally(new CFException());
2535	<	g = f.runAfterEither(f2, r);
2536	<	checkCompletedWithWrappedCFException(g);
2537	<	}
2531	>	checkCompletedExceptionally(f, ex);
2532	>	checkCompletedNormally(g, v1);
2533	>	checkCompletedWithWrappedException(h0, ex);
2534	>	checkCompletedWithWrappedException(h1, ex);
2535	>	checkCompletedWithWrappedException(h2, ex);
2536	>	checkCompletedWithWrappedException(h3, ex);
2537	>	checkCompletedWithWrappedException(h4, ex);
2538	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2539	>	}}
2540	>
2541	>	public void testAcceptEither_exceptionalCompletion2() {
2542	>	for (ExecutionMode m : ExecutionMode.values())
2543	>	for (boolean fFirst : new boolean[] { true, false })
2544	>	for (Integer v1 : new Integer[] { 1, null })
2545	>	{
2546	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2547	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2548	>	final CFException ex = new CFException();
2549	>	final NoopConsumer[] rs = new NoopConsumer[6];
2550	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2551	>
2552	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2553	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2554	>	assertTrue(fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2555	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2556	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2557	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2558
2559	<	/**
2560	<	* runAfterEither result completes exceptionally if action does
2561	<	*/
2562	<	public void testRunAfterEither3() {
2563	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2564	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2565	<	FailingNoop r = new FailingNoop();
2566	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
2567	<	f2.complete(two);
2568	<	checkCompletedWithWrappedCFException(g);
2569	<	}
2559	>	// unspecified behavior - both source completions available
2560	>	try {
2561	>	assertNull(h0.join());
2562	>	rs[0].assertValue(v1);
2563	>	} catch (CompletionException ok) {
2564	>	checkCompletedWithWrappedException(h0, ex);
2565	>	rs[0].assertNotInvoked();
2566	>	}
2567	>	try {
2568	>	assertNull(h1.join());
2569	>	rs[1].assertValue(v1);
2570	>	} catch (CompletionException ok) {
2571	>	checkCompletedWithWrappedException(h1, ex);
2572	>	rs[1].assertNotInvoked();
2573	>	}
2574	>	try {
2575	>	assertNull(h2.join());
2576	>	rs[2].assertValue(v1);
2577	>	} catch (CompletionException ok) {
2578	>	checkCompletedWithWrappedException(h2, ex);
2579	>	rs[2].assertNotInvoked();
2580	>	}
2581	>	try {
2582	>	assertNull(h3.join());
2583	>	rs[3].assertValue(v1);
2584	>	} catch (CompletionException ok) {
2585	>	checkCompletedWithWrappedException(h3, ex);
2586	>	rs[3].assertNotInvoked();
2587	>	}
2588
2589	<	/**
2590	<	* runAfterEither result completes exceptionally if either source cancelled
2591	<	*/
1032	<	public void testRunAfterEither4() {
1033	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1034	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1035	<	Noop r = new Noop();
1036	<	CompletableFuture<Void> g = f.runAfterEither(f2, r);
1037	<	assertTrue(f.cancel(true));
1038	<	checkCompletedWithWrappedCancellationException(g);
1039	<	f = new CompletableFuture<Integer>();
1040	<	f2 = new CompletableFuture<Integer>();
1041	<	assertTrue(f2.cancel(true));
1042	<	checkCompletedWithWrappedCancellationException(g);
1043	<	}
2589	>	checkCompletedNormally(f, v1);
2590	>	checkCompletedExceptionally(g, ex);
2591	>	}}
2592
2593		/**
2594	<	* thenCompose result completes normally after normal completion of source
2594	>	* acceptEither result completes exceptionally if either source cancelled
2595		*/
2596	<	public void testThenCompose() {
2597	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2598	<	CompletableFutureInc r = new CompletableFutureInc();
2599	<	CompletableFuture<Integer> g = f.thenCompose(r);
2600	<	f.complete(one);
2601	<	checkCompletedNormally(g, two);
2602	<	}
2596	>	public void testAcceptEither_sourceCancelled() {
2597	>	for (ExecutionMode m : ExecutionMode.values())
2598	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2599	>	for (Integer v1 : new Integer[] { 1, null })
2600	>	{
2601	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2602	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2603	>	final NoopConsumer[] rs = new NoopConsumer[6];
2604	>	for (int i = 0; i < rs.length; i++) rs[i] = new NoopConsumer(m);
2605	>
2606	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2607	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2608	>	checkIncomplete(h0);
2609	>	checkIncomplete(h1);
2610	>	rs[0].assertNotInvoked();
2611	>	rs[1].assertNotInvoked();
2612	>	f.cancel(mayInterruptIfRunning);
2613	>	checkCompletedWithWrappedCancellationException(h0);
2614	>	checkCompletedWithWrappedCancellationException(h1);
2615	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2616	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2617	>	checkCompletedWithWrappedCancellationException(h2);
2618	>	checkCompletedWithWrappedCancellationException(h3);
2619	>
2620	>	g.complete(v1);
2621	>
2622	>	// unspecified behavior - both source completions available
2623	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2624	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2625	>	try {
2626	>	assertNull(h4.join());
2627	>	rs[4].assertValue(v1);
2628	>	} catch (CompletionException ok) {
2629	>	checkCompletedWithWrappedCancellationException(h4);
2630	>	rs[4].assertNotInvoked();
2631	>	}
2632	>	try {
2633	>	assertNull(h5.join());
2634	>	rs[5].assertValue(v1);
2635	>	} catch (CompletionException ok) {
2636	>	checkCompletedWithWrappedCancellationException(h5);
2637	>	rs[5].assertNotInvoked();
2638	>	}
2639
2640	<	/**
2641	<	* thenCompose result completes exceptionally after exceptional
2642	<	* completion of source
2643	<	*/
2644	<	public void testThenCompose2() {
2645	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2646	<	CompletableFutureInc r = new CompletableFutureInc();
2647	<	CompletableFuture<Integer> g = f.thenCompose(r);
1064	<	f.completeExceptionally(new CFException());
1065	<	checkCompletedWithWrappedCFException(g);
1066	<	}
2640	>	checkCancelled(f);
2641	>	checkCompletedNormally(g, v1);
2642	>	checkCompletedWithWrappedCancellationException(h0);
2643	>	checkCompletedWithWrappedCancellationException(h1);
2644	>	checkCompletedWithWrappedCancellationException(h2);
2645	>	checkCompletedWithWrappedCancellationException(h3);
2646	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2647	>	}}
2648
2649		/**
2650	<	* thenCompose result completes exceptionally if action does
2650	>	* acceptEither result completes exceptionally if action does
2651		*/
2652	<	public void testThenCompose3() {
2653	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2654	<	FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
2655	<	CompletableFuture<Integer> g = f.thenCompose(r);
2656	<	f.complete(one);
2657	<	checkCompletedWithWrappedCFException(g);
2658	<	}
2652	>	public void testAcceptEither_actionFailed() {
2653	>	for (ExecutionMode m : ExecutionMode.values())
2654	>	for (Integer v1 : new Integer[] { 1, null })
2655	>	for (Integer v2 : new Integer[] { 2, null })
2656	>	{
2657	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2658	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2659	>	final FailingConsumer[] rs = new FailingConsumer[6];
2660	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingConsumer(m);
2661	>
2662	>	final CompletableFuture<Void> h0 = m.acceptEither(f, g, rs[0]);
2663	>	final CompletableFuture<Void> h1 = m.acceptEither(g, f, rs[1]);
2664	>	f.complete(v1);
2665	>	final CompletableFuture<Void> h2 = m.acceptEither(f, g, rs[2]);
2666	>	final CompletableFuture<Void> h3 = m.acceptEither(g, f, rs[3]);
2667	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2668	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2669	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2670	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2671	>	for (int i = 0; i < 4; i++) rs[i].assertValue(v1);
2672	>
2673	>	g.complete(v2);
2674	>
2675	>	// unspecified behavior - both source completions available
2676	>	final CompletableFuture<Void> h4 = m.acceptEither(f, g, rs[4]);
2677	>	final CompletableFuture<Void> h5 = m.acceptEither(g, f, rs[5]);
2678	>
2679	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2680	>	assertTrue(Objects.equals(v1, rs[4].value) ||
2681	>	Objects.equals(v2, rs[4].value));
2682	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2683	>	assertTrue(Objects.equals(v1, rs[5].value) ||
2684	>	Objects.equals(v2, rs[5].value));
2685	>
2686	>	checkCompletedNormally(f, v1);
2687	>	checkCompletedNormally(g, v2);
2688	>	}}
2689
2690		/**
2691	<	* thenCompose result completes exceptionally if source cancelled
2691	>	* runAfterEither result completes normally after normal completion
2692	>	* of either source
2693		*/
2694	<	public void testThenCompose4() {
2695	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2696	<	CompletableFutureInc r = new CompletableFutureInc();
2697	<	CompletableFuture<Integer> g = f.thenCompose(r);
2698	<	assertTrue(f.cancel(true));
2699	<	checkCompletedWithWrappedCancellationException(g);
2700	<	}
2701	<
2702	<
2703	<	// asyncs
2694	>	public void testRunAfterEither_normalCompletion() {
2695	>	for (ExecutionMode m : ExecutionMode.values())
2696	>	for (Integer v1 : new Integer[] { 1, null })
2697	>	for (Integer v2 : new Integer[] { 2, null })
2698	>	for (boolean pushNop : new boolean[] { true, false })
2699	>	{
2700	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2701	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2702	>	final Noop[] rs = new Noop[6];
2703	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2704	>
2705	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2706	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2707	>	checkIncomplete(h0);
2708	>	checkIncomplete(h1);
2709	>	rs[0].assertNotInvoked();
2710	>	rs[1].assertNotInvoked();
2711	>	if (pushNop) {          // ad hoc test of intra-completion interference
2712	>	m.thenRun(f, () -> {});
2713	>	m.thenRun(g, () -> {});
2714	>	}
2715	>	f.complete(v1);
2716	>	checkCompletedNormally(h0, null);
2717	>	checkCompletedNormally(h1, null);
2718	>	rs[0].assertInvoked();
2719	>	rs[1].assertInvoked();
2720	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2721	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2722	>	checkCompletedNormally(h2, null);
2723	>	checkCompletedNormally(h3, null);
2724	>	rs[2].assertInvoked();
2725	>	rs[3].assertInvoked();
2726	>
2727	>	g.complete(v2);
2728	>
2729	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2730	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2731	>
2732	>	checkCompletedNormally(f, v1);
2733	>	checkCompletedNormally(g, v2);
2734	>	checkCompletedNormally(h0, null);
2735	>	checkCompletedNormally(h1, null);
2736	>	checkCompletedNormally(h2, null);
2737	>	checkCompletedNormally(h3, null);
2738	>	checkCompletedNormally(h4, null);
2739	>	checkCompletedNormally(h5, null);
2740	>	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2741	>	}}
2742
2743		/**
2744	<	* thenRunAsync result completes normally after normal completion of source
2744	>	* runAfterEither result completes exceptionally after exceptional
2745	>	* completion of either source
2746		*/
2747	<	public void testThenRunAsync() {
2748	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2749	<	Noop r = new Noop();
2750	<	CompletableFuture<Void> g = f.thenRunAsync(r);
2751	<	f.complete(null);
2752	<	checkCompletedNormally(g, null);
2747	>	public void testRunAfterEither_exceptionalCompletion() {
2748	>	for (ExecutionMode m : ExecutionMode.values())
2749	>	for (Integer v1 : new Integer[] { 1, null })
2750	>	{
2751	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2752	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2753	>	final CFException ex = new CFException();
2754	>	final Noop[] rs = new Noop[6];
2755	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2756	>
2757	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2758	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2759	>	checkIncomplete(h0);
2760	>	checkIncomplete(h1);
2761	>	rs[0].assertNotInvoked();
2762	>	rs[1].assertNotInvoked();
2763	>	assertTrue(f.completeExceptionally(ex));
2764	>	checkCompletedWithWrappedException(h0, ex);
2765	>	checkCompletedWithWrappedException(h1, ex);
2766	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2767	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2768	>	checkCompletedWithWrappedException(h2, ex);
2769	>	checkCompletedWithWrappedException(h3, ex);
2770	>
2771	>	assertTrue(g.complete(v1));
2772	>
2773	>	// unspecified behavior - both source completions available
2774	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2775	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2776	>	try {
2777	>	assertNull(h4.join());
2778	>	rs[4].assertInvoked();
2779	>	} catch (CompletionException ok) {
2780	>	checkCompletedWithWrappedException(h4, ex);
2781	>	rs[4].assertNotInvoked();
2782	>	}
2783	>	try {
2784	>	assertNull(h5.join());
2785	>	rs[5].assertInvoked();
2786	>	} catch (CompletionException ok) {
2787	>	checkCompletedWithWrappedException(h5, ex);
2788	>	rs[5].assertNotInvoked();
2789	>	}
2790
2791	<	// reordered version
2792	<	f = new CompletableFuture<Integer>();
2793	<	f.complete(null);
2794	<	r = new Noop();
2795	<	g = f.thenRunAsync(r);
2796	<	checkCompletedNormally(g, null);
2797	<	}
2791	>	checkCompletedExceptionally(f, ex);
2792	>	checkCompletedNormally(g, v1);
2793	>	checkCompletedWithWrappedException(h0, ex);
2794	>	checkCompletedWithWrappedException(h1, ex);
2795	>	checkCompletedWithWrappedException(h2, ex);
2796	>	checkCompletedWithWrappedException(h3, ex);
2797	>	checkCompletedWithWrappedException(h4, ex);
2798	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2799	>	}}
2800	>
2801	>	public void testRunAfterEither_exceptionalCompletion2() {
2802	>	for (ExecutionMode m : ExecutionMode.values())
2803	>	for (boolean fFirst : new boolean[] { true, false })
2804	>	for (Integer v1 : new Integer[] { 1, null })
2805	>	{
2806	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2807	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2808	>	final CFException ex = new CFException();
2809	>	final Noop[] rs = new Noop[6];
2810	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2811	>
2812	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2813	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2814	>	assertTrue( fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2815	>	assertTrue(!fFirst ? f.complete(v1) : g.completeExceptionally(ex));
2816	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2817	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2818
2819	<	/**
1112	<	* thenRunAsync result completes exceptionally after exceptional
1113	<	* completion of source
1114	<	*/
1115	<	public void testThenRunAsync2() {
1116	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1117	<	Noop r = new Noop();
1118	<	CompletableFuture<Void> g = f.thenRunAsync(r);
1119	<	f.completeExceptionally(new CFException());
2819	>	// unspecified behavior - both source completions available
2820		try {
2821	<	g.join();
2822	<	shouldThrow();
2823	<	} catch (Exception ok) {
2821	>	assertNull(h0.join());
2822	>	rs[0].assertInvoked();
2823	>	} catch (CompletionException ok) {
2824	>	checkCompletedWithWrappedException(h0, ex);
2825	>	rs[0].assertNotInvoked();
2826	>	}
2827	>	try {
2828	>	assertNull(h1.join());
2829	>	rs[1].assertInvoked();
2830	>	} catch (CompletionException ok) {
2831	>	checkCompletedWithWrappedException(h1, ex);
2832	>	rs[1].assertNotInvoked();
2833	>	}
2834	>	try {
2835	>	assertNull(h2.join());
2836	>	rs[2].assertInvoked();
2837	>	} catch (CompletionException ok) {
2838	>	checkCompletedWithWrappedException(h2, ex);
2839	>	rs[2].assertNotInvoked();
2840	>	}
2841	>	try {
2842	>	assertNull(h3.join());
2843	>	rs[3].assertInvoked();
2844	>	} catch (CompletionException ok) {
2845	>	checkCompletedWithWrappedException(h3, ex);
2846	>	rs[3].assertNotInvoked();
2847		}
1125	–	checkCompletedWithWrappedCFException(g);
1126	–	}
1127	–
1128	–	/**
1129	–	* thenRunAsync result completes exceptionally if action does
1130	–	*/
1131	–	public void testThenRunAsync3() {
1132	–	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1133	–	FailingNoop r = new FailingNoop();
1134	–	CompletableFuture<Void> g = f.thenRunAsync(r);
1135	–	f.complete(null);
1136	–	checkCompletedWithWrappedCFException(g);
1137	–	}
2848
2849	<	/**
2850	<	* thenRunAsync result completes exceptionally if source cancelled
2851	<	*/
1142	<	public void testThenRunAsync4() {
1143	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1144	<	Noop r = new Noop();
1145	<	CompletableFuture<Void> g = f.thenRunAsync(r);
1146	<	assertTrue(f.cancel(true));
1147	<	checkCompletedWithWrappedCancellationException(g);
1148	<	}
2849	>	checkCompletedNormally(f, v1);
2850	>	checkCompletedExceptionally(g, ex);
2851	>	}}
2852
2853		/**
2854	<	* thenApplyAsync result completes normally after normal completion of source
2854	>	* runAfterEither result completes exceptionally if either source cancelled
2855		*/
2856	<	public void testThenApplyAsync() {
2857	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2858	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
2859	<	f.complete(one);
2860	<	checkCompletedNormally(g, two);
2861	<	}
2856	>	public void testRunAfterEither_sourceCancelled() {
2857	>	for (ExecutionMode m : ExecutionMode.values())
2858	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
2859	>	for (Integer v1 : new Integer[] { 1, null })
2860	>	{
2861	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2862	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2863	>	final Noop[] rs = new Noop[6];
2864	>	for (int i = 0; i < rs.length; i++) rs[i] = new Noop(m);
2865	>
2866	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2867	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2868	>	checkIncomplete(h0);
2869	>	checkIncomplete(h1);
2870	>	rs[0].assertNotInvoked();
2871	>	rs[1].assertNotInvoked();
2872	>	f.cancel(mayInterruptIfRunning);
2873	>	checkCompletedWithWrappedCancellationException(h0);
2874	>	checkCompletedWithWrappedCancellationException(h1);
2875	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2876	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2877	>	checkCompletedWithWrappedCancellationException(h2);
2878	>	checkCompletedWithWrappedCancellationException(h3);
2879	>
2880	>	assertTrue(g.complete(v1));
2881	>
2882	>	// unspecified behavior - both source completions available
2883	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2884	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2885	>	try {
2886	>	assertNull(h4.join());
2887	>	rs[4].assertInvoked();
2888	>	} catch (CompletionException ok) {
2889	>	checkCompletedWithWrappedCancellationException(h4);
2890	>	rs[4].assertNotInvoked();
2891	>	}
2892	>	try {
2893	>	assertNull(h5.join());
2894	>	rs[5].assertInvoked();
2895	>	} catch (CompletionException ok) {
2896	>	checkCompletedWithWrappedCancellationException(h5);
2897	>	rs[5].assertNotInvoked();
2898	>	}
2899
2900	<	/**
2901	<	* thenApplyAsync result completes exceptionally after exceptional
2902	<	* completion of source
2903	<	*/
2904	<	public void testThenApplyAsync2() {
2905	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2906	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
2907	<	f.completeExceptionally(new CFException());
1168	<	checkCompletedWithWrappedCFException(g);
1169	<	}
2900	>	checkCancelled(f);
2901	>	checkCompletedNormally(g, v1);
2902	>	checkCompletedWithWrappedCancellationException(h0);
2903	>	checkCompletedWithWrappedCancellationException(h1);
2904	>	checkCompletedWithWrappedCancellationException(h2);
2905	>	checkCompletedWithWrappedCancellationException(h3);
2906	>	for (int i = 0; i < 4; i++) rs[i].assertNotInvoked();
2907	>	}}
2908
2909		/**
2910	<	* thenApplyAsync result completes exceptionally if action does
2910	>	* runAfterEither result completes exceptionally if action does
2911		*/
2912	<	public void testThenApplyAsync3() {
2913	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2914	<	FailingFunction r = new FailingFunction();
2915	<	CompletableFuture<Integer> g = f.thenApplyAsync(r);
2916	<	f.complete(null);
2917	<	checkCompletedWithWrappedCFException(g);
2918	<	}
2912	>	public void testRunAfterEither_actionFailed() {
2913	>	for (ExecutionMode m : ExecutionMode.values())
2914	>	for (Integer v1 : new Integer[] { 1, null })
2915	>	for (Integer v2 : new Integer[] { 2, null })
2916	>	{
2917	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2918	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
2919	>	final FailingRunnable[] rs = new FailingRunnable[6];
2920	>	for (int i = 0; i < rs.length; i++) rs[i] = new FailingRunnable(m);
2921	>
2922	>	final CompletableFuture<Void> h0 = m.runAfterEither(f, g, rs[0]);
2923	>	final CompletableFuture<Void> h1 = m.runAfterEither(g, f, rs[1]);
2924	>	assertTrue(f.complete(v1));
2925	>	final CompletableFuture<Void> h2 = m.runAfterEither(f, g, rs[2]);
2926	>	final CompletableFuture<Void> h3 = m.runAfterEither(g, f, rs[3]);
2927	>	checkCompletedWithWrappedException(h0, rs[0].ex);
2928	>	checkCompletedWithWrappedException(h1, rs[1].ex);
2929	>	checkCompletedWithWrappedException(h2, rs[2].ex);
2930	>	checkCompletedWithWrappedException(h3, rs[3].ex);
2931	>	for (int i = 0; i < 4; i++) rs[i].assertInvoked();
2932	>	assertTrue(g.complete(v2));
2933	>	final CompletableFuture<Void> h4 = m.runAfterEither(f, g, rs[4]);
2934	>	final CompletableFuture<Void> h5 = m.runAfterEither(g, f, rs[5]);
2935	>	checkCompletedWithWrappedException(h4, rs[4].ex);
2936	>	checkCompletedWithWrappedException(h5, rs[5].ex);
2937	>
2938	>	checkCompletedNormally(f, v1);
2939	>	checkCompletedNormally(g, v2);
2940	>	for (int i = 0; i < 6; i++) rs[i].assertInvoked();
2941	>	}}
2942
2943		/**
2944	<	* thenApplyAsync result completes exceptionally if source cancelled
2944	>	* thenCompose result completes normally after normal completion of source
2945		*/
2946	<	public void testThenApplyAsync4() {
2947	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2948	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc);
2949	<	assertTrue(f.cancel(true));
2950	<	checkCompletedWithWrappedCancellationException(g);
2951	<	}
2946	>	public void testThenCompose_normalCompletion() {
2947	>	for (ExecutionMode m : ExecutionMode.values())
2948	>	for (boolean createIncomplete : new boolean[] { true, false })
2949	>	for (Integer v1 : new Integer[] { 1, null })
2950	>	{
2951	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2952	>	final CompletableFutureInc r = new CompletableFutureInc(m);
2953	>	if (!createIncomplete) assertTrue(f.complete(v1));
2954	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
2955	>	if (createIncomplete) assertTrue(f.complete(v1));
2956	>
2957	>	checkCompletedNormally(g, inc(v1));
2958	>	checkCompletedNormally(f, v1);
2959	>	r.assertValue(v1);
2960	>	}}
2961
2962		/**
2963	<	* thenAcceptAsync result completes normally after normal
2963	>	* thenCompose result completes exceptionally after exceptional
2964		* completion of source
2965		*/
2966	<	public void testThenAcceptAsync() {
2967	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2968	<	IncAction r = new IncAction();
2969	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
2970	<	f.complete(one);
2971	<	checkCompletedNormally(g, null);
2972	<	assertEquals(r.value, 2);
2973	<	}
2966	>	public void testThenCompose_exceptionalCompletion() {
2967	>	for (ExecutionMode m : ExecutionMode.values())
2968	>	for (boolean createIncomplete : new boolean[] { true, false })
2969	>	{
2970	>	final CFException ex = new CFException();
2971	>	final CompletableFutureInc r = new CompletableFutureInc(m);
2972	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2973	>	if (!createIncomplete) f.completeExceptionally(ex);
2974	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
2975	>	if (createIncomplete) f.completeExceptionally(ex);
2976	>
2977	>	checkCompletedWithWrappedException(g, ex);
2978	>	checkCompletedExceptionally(f, ex);
2979	>	r.assertNotInvoked();
2980	>	}}
2981
2982		/**
2983	<	* thenAcceptAsync result completes exceptionally after exceptional
1207	<	* completion of source
2983	>	* thenCompose result completes exceptionally if action does
2984		*/
2985	<	public void testThenAcceptAsync2() {
2986	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2987	<	IncAction r = new IncAction();
2988	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
2989	<	f.completeExceptionally(new CFException());
2990	<	checkCompletedWithWrappedCFException(g);
2991	<	}
2985	>	public void testThenCompose_actionFailed() {
2986	>	for (ExecutionMode m : ExecutionMode.values())
2987	>	for (boolean createIncomplete : new boolean[] { true, false })
2988	>	for (Integer v1 : new Integer[] { 1, null })
2989	>	{
2990	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
2991	>	final FailingCompletableFutureFunction r
2992	>	= new FailingCompletableFutureFunction(m);
2993	>	if (!createIncomplete) assertTrue(f.complete(v1));
2994	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
2995	>	if (createIncomplete) assertTrue(f.complete(v1));
2996	>
2997	>	checkCompletedWithWrappedException(g, r.ex);
2998	>	checkCompletedNormally(f, v1);
2999	>	}}
3000
3001		/**
3002	<	* thenAcceptAsync result completes exceptionally if action does
3002	>	* thenCompose result completes exceptionally if source cancelled
3003		*/
3004	<	public void testThenAcceptAsync3() {
3005	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3006	<	FailingConsumer r = new FailingConsumer();
3007	<	CompletableFuture<Void> g = f.thenAcceptAsync(r);
3008	<	f.complete(null);
3009	<	checkCompletedWithWrappedCFException(g);
3010	<	}
3004	>	public void testThenCompose_sourceCancelled() {
3005	>	for (ExecutionMode m : ExecutionMode.values())
3006	>	for (boolean createIncomplete : new boolean[] { true, false })
3007	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3008	>	{
3009	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3010	>	final CompletableFutureInc r = new CompletableFutureInc(m);
3011	>	if (!createIncomplete) assertTrue(f.cancel(mayInterruptIfRunning));
3012	>	final CompletableFuture<Integer> g = m.thenCompose(f, r);
3013	>	if (createIncomplete) {
3014	>	checkIncomplete(g);
3015	>	assertTrue(f.cancel(mayInterruptIfRunning));
3016	>	}
3017
1228	–	/**
1229	–	* thenAcceptAsync result completes exceptionally if source cancelled
1230	–	*/
1231	–	public void testThenAcceptAsync4() {
1232	–	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1233	–	IncAction r = new IncAction();
1234	–	CompletableFuture<Void> g = f.thenAcceptAsync(r);
1235	–	assertTrue(f.cancel(true));
3018		checkCompletedWithWrappedCancellationException(g);
3019	<	}
3020	<	/**
1239	<	* thenCombineAsync result completes normally after normal
1240	<	* completion of sources
1241	<	*/
1242	<	public void testThenCombineAsync() {
1243	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1244	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1245	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, add);
1246	<	f.complete(one);
1247	<	checkIncomplete(g);
1248	<	f2.complete(two);
1249	<	checkCompletedNormally(g, three);
1250	<	}
3019	>	checkCancelled(f);
3020	>	}}
3021
3022		/**
3023	<	* thenCombineAsync result completes exceptionally after exceptional
1254	<	* completion of source
3023	>	* thenCompose result completes exceptionally if the result of the action does
3024		*/
3025	<	public void testThenCombineAsync2() {
3026	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3027	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3028	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, add);
3029	<	f.completeExceptionally(new CFException());
3030	<	f2.complete(two);
3031	<	checkCompletedWithWrappedCFException(g);
3025	>	public void testThenCompose_actionReturnsFailingFuture() {
3026	>	for (ExecutionMode m : ExecutionMode.values())
3027	>	for (int order = 0; order < 6; order++)
3028	>	for (Integer v1 : new Integer[] { 1, null })
3029	>	{
3030	>	final CFException ex = new CFException();
3031	>	final CompletableFuture<Integer> f = new CompletableFuture<>();
3032	>	final CompletableFuture<Integer> g = new CompletableFuture<>();
3033	>	final CompletableFuture<Integer> h;
3034	>	// Test all permutations of orders
3035	>	switch (order) {
3036	>	case 0:
3037	>	assertTrue(f.complete(v1));
3038	>	assertTrue(g.completeExceptionally(ex));
3039	>	h = m.thenCompose(f, (x -> g));
3040	>	break;
3041	>	case 1:
3042	>	assertTrue(f.complete(v1));
3043	>	h = m.thenCompose(f, (x -> g));
3044	>	assertTrue(g.completeExceptionally(ex));
3045	>	break;
3046	>	case 2:
3047	>	assertTrue(g.completeExceptionally(ex));
3048	>	assertTrue(f.complete(v1));
3049	>	h = m.thenCompose(f, (x -> g));
3050	>	break;
3051	>	case 3:
3052	>	assertTrue(g.completeExceptionally(ex));
3053	>	h = m.thenCompose(f, (x -> g));
3054	>	assertTrue(f.complete(v1));
3055	>	break;
3056	>	case 4:
3057	>	h = m.thenCompose(f, (x -> g));
3058	>	assertTrue(f.complete(v1));
3059	>	assertTrue(g.completeExceptionally(ex));
3060	>	break;
3061	>	case 5:
3062	>	h = m.thenCompose(f, (x -> g));
3063	>	assertTrue(f.complete(v1));
3064	>	assertTrue(g.completeExceptionally(ex));
3065	>	break;
3066	>	default: throw new AssertionError();
3067	>	}
3068
3069	<	f = new CompletableFuture<Integer>();
3070	<	f2 = new CompletableFuture<Integer>();
3071	<	g = f.thenCombineAsync(f2, add);
3072	<	f.complete(one);
1268	<	f2.completeExceptionally(new CFException());
1269	<	checkCompletedWithWrappedCFException(g);
1270	<	}
3069	>	checkCompletedExceptionally(g, ex);
3070	>	checkCompletedWithWrappedException(h, ex);
3071	>	checkCompletedNormally(f, v1);
3072	>	}}
3073
3074	<	/**
1273	<	* thenCombineAsync result completes exceptionally if action does
1274	<	*/
1275	<	public void testThenCombineAsync3() {
1276	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1277	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1278	<	FailingBiFunction r = new FailingBiFunction();
1279	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, r);
1280	<	f.complete(one);
1281	<	checkIncomplete(g);
1282	<	f2.complete(two);
1283	<	checkCompletedWithWrappedCFException(g);
1284	<	}
3074	>	// other static methods
3075
3076		/**
3077	<	* thenCombineAsync result completes exceptionally if either source cancelled
3077	>	* allOf(no component futures) returns a future completed normally
3078	>	* with the value null
3079		*/
3080	<	public void testThenCombineAsync4() {
3081	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3082	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1292	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, add);
1293	<	assertTrue(f.cancel(true));
1294	<	f2.complete(two);
1295	<	checkCompletedWithWrappedCancellationException(g);
1296	<
1297	<	f = new CompletableFuture<Integer>();
1298	<	f2 = new CompletableFuture<Integer>();
1299	<	g = f.thenCombineAsync(f2, add);
1300	<	f.complete(one);
1301	<	assertTrue(f2.cancel(true));
1302	<	checkCompletedWithWrappedCancellationException(g);
3080	>	public void testAllOf_empty() throws Exception {
3081	>	CompletableFuture<Void> f = CompletableFuture.allOf();
3082	>	checkCompletedNormally(f, null);
3083		}
3084
3085		/**
3086	<	* thenAcceptBothAsync result completes normally after normal
3087	<	* completion of sources
3086	>	* allOf returns a future completed normally with the value null
3087	>	* when all components complete normally
3088		*/
3089	<	public void testThenAcceptBothAsync() {
3090	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3091	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3092	<	AddAction r = new AddAction();
3093	<	CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r);
3094	<	f.complete(one);
3095	<	checkIncomplete(g);
3096	<	f2.complete(two);
3097	<	checkCompletedNormally(g, null);
3098	<	assertEquals(r.value, 3);
3089	>	public void testAllOf_normal() throws Exception {
3090	>	for (int k = 1; k < 10; k++) {
3091	>	CompletableFuture<Integer>[] fs
3092	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3093	>	for (int i = 0; i < k; i++)
3094	>	fs[i] = new CompletableFuture<>();
3095	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3096	>	for (int i = 0; i < k; i++) {
3097	>	checkIncomplete(f);
3098	>	checkIncomplete(CompletableFuture.allOf(fs));
3099	>	fs[i].complete(one);
3100	>	}
3101	>	checkCompletedNormally(f, null);
3102	>	checkCompletedNormally(CompletableFuture.allOf(fs), null);
3103	>	}
3104		}
3105
3106	<	/**
3107	<	* thenAcceptBothAsync result completes exceptionally after exceptional
3108	<	* completion of source
3109	<	*/
3110	<	public void testThenAcceptBothAsync2() {
3111	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3112	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3113	<	AddAction r = new AddAction();
3114	<	CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r);
3115	<	f.completeExceptionally(new CFException());
3116	<	f2.complete(two);
3117	<	checkCompletedWithWrappedCFException(g);
3118	<
3119	<	r = new AddAction();
3120	<	f = new CompletableFuture<Integer>();
1336	<	f2 = new CompletableFuture<Integer>();
1337	<	g = f.thenAcceptBothAsync(f2, r);
1338	<	f.complete(one);
1339	<	f2.completeExceptionally(new CFException());
1340	<	checkCompletedWithWrappedCFException(g);
3106	>	public void testAllOf_normal_backwards() throws Exception {
3107	>	for (int k = 1; k < 10; k++) {
3108	>	CompletableFuture<Integer>[] fs
3109	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3110	>	for (int i = 0; i < k; i++)
3111	>	fs[i] = new CompletableFuture<>();
3112	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3113	>	for (int i = k - 1; i >= 0; i--) {
3114	>	checkIncomplete(f);
3115	>	checkIncomplete(CompletableFuture.allOf(fs));
3116	>	fs[i].complete(one);
3117	>	}
3118	>	checkCompletedNormally(f, null);
3119	>	checkCompletedNormally(CompletableFuture.allOf(fs), null);
3120	>	}
3121		}
3122
3123	<	/**
3124	<	* thenAcceptBothAsync result completes exceptionally if action does
3125	<	*/
3126	<	public void testThenAcceptBothAsync3() {
3127	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3128	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3129	<	FailingBiConsumer r = new FailingBiConsumer();
3130	<	CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r);
3131	<	f.complete(one);
3132	<	checkIncomplete(g);
3133	<	f2.complete(two);
3134	<	checkCompletedWithWrappedCFException(g);
3123	>	public void testAllOf_exceptional() throws Exception {
3124	>	for (int k = 1; k < 10; k++) {
3125	>	CompletableFuture<Integer>[] fs
3126	>	= (CompletableFuture<Integer>[]) new CompletableFuture[k];
3127	>	CFException ex = new CFException();
3128	>	for (int i = 0; i < k; i++)
3129	>	fs[i] = new CompletableFuture<>();
3130	>	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
3131	>	for (int i = 0; i < k; i++) {
3132	>	checkIncomplete(f);
3133	>	checkIncomplete(CompletableFuture.allOf(fs));
3134	>	if (i != k / 2) {
3135	>	fs[i].complete(i);
3136	>	checkCompletedNormally(fs[i], i);
3137	>	} else {
3138	>	fs[i].completeExceptionally(ex);
3139	>	checkCompletedExceptionally(fs[i], ex);
3140	>	}
3141	>	}
3142	>	checkCompletedWithWrappedException(f, ex);
3143	>	checkCompletedWithWrappedException(CompletableFuture.allOf(fs), ex);
3144	>	}
3145		}
3146
3147		/**
3148	<	* thenAcceptBothAsync result completes exceptionally if either source cancelled
3148	>	* anyOf(no component futures) returns an incomplete future
3149		*/
3150	<	public void testThenAcceptBothAsync4() {
3151	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3152	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3153	<	AddAction r = new AddAction();
3154	<	CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r);
1365	<	assertTrue(f.cancel(true));
1366	<	f2.complete(two);
1367	<	checkCompletedWithWrappedCancellationException(g);
3150	>	public void testAnyOf_empty() throws Exception {
3151	>	for (Integer v1 : new Integer[] { 1, null })
3152	>	{
3153	>	CompletableFuture<Object> f = CompletableFuture.anyOf();
3154	>	checkIncomplete(f);
3155
3156	<	r = new AddAction();
3157	<	f = new CompletableFuture<Integer>();
3158	<	f2 = new CompletableFuture<Integer>();
1372	<	g = f.thenAcceptBothAsync(f2, r);
1373	<	f.complete(one);
1374	<	assertTrue(f2.cancel(true));
1375	<	checkCompletedWithWrappedCancellationException(g);
1376	<	}
3156	>	f.complete(v1);
3157	>	checkCompletedNormally(f, v1);
3158	>	}}
3159
3160		/**
3161	<	* runAfterBothAsync result completes normally after normal
3162	<	* completion of sources
3161	>	* anyOf returns a future completed normally with a value when
3162	>	* a component future does
3163		*/
3164	<	public void testRunAfterBothAsync() {
3165	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3166	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3167	<	Noop r = new Noop();
3168	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
3169	<	f.complete(one);
3170	<	checkIncomplete(g);
3171	<	f2.complete(two);
3172	<	checkCompletedNormally(g, null);
3173	<	assertTrue(r.ran);
3174	<	}
3175	<
3176	<	/**
3177	<	* runAfterBothAsync result completes exceptionally after exceptional
1396	<	* completion of source
1397	<	*/
1398	<	public void testRunAfterBothAsync2() {
1399	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1400	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1401	<	Noop r = new Noop();
1402	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
1403	<	f.completeExceptionally(new CFException());
1404	<	f2.complete(two);
1405	<	checkCompletedWithWrappedCFException(g);
1406	<
1407	<	r = new Noop();
1408	<	f = new CompletableFuture<Integer>();
1409	<	f2 = new CompletableFuture<Integer>();
1410	<	g = f.runAfterBothAsync(f2, r);
1411	<	f.complete(one);
1412	<	f2.completeExceptionally(new CFException());
1413	<	checkCompletedWithWrappedCFException(g);
3164	>	public void testAnyOf_normal() throws Exception {
3165	>	for (int k = 0; k < 10; k++) {
3166	>	CompletableFuture[] fs = new CompletableFuture[k];
3167	>	for (int i = 0; i < k; i++)
3168	>	fs[i] = new CompletableFuture<>();
3169	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3170	>	checkIncomplete(f);
3171	>	for (int i = 0; i < k; i++) {
3172	>	fs[i].complete(i);
3173	>	checkCompletedNormally(f, 0);
3174	>	int x = (int) CompletableFuture.anyOf(fs).join();
3175	>	assertTrue(0 <= x && x <= i);
3176	>	}
3177	>	}
3178		}
3179	<
3180	<	/**
3181	<	* runAfterBothAsync result completes exceptionally if action does
3182	<	*/
3183	<	public void testRunAfterBothAsync3() {
3184	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3185	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3186	<	FailingNoop r = new FailingNoop();
3187	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
3188	<	f.complete(one);
3189	<	checkIncomplete(g);
3190	<	f2.complete(two);
3191	<	checkCompletedWithWrappedCFException(g);
3179	>	public void testAnyOf_normal_backwards() throws Exception {
3180	>	for (int k = 0; k < 10; k++) {
3181	>	CompletableFuture[] fs = new CompletableFuture[k];
3182	>	for (int i = 0; i < k; i++)
3183	>	fs[i] = new CompletableFuture<>();
3184	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3185	>	checkIncomplete(f);
3186	>	for (int i = k - 1; i >= 0; i--) {
3187	>	fs[i].complete(i);
3188	>	checkCompletedNormally(f, k - 1);
3189	>	int x = (int) CompletableFuture.anyOf(fs).join();
3190	>	assertTrue(i <= x && x <= k - 1);
3191	>	}
3192	>	}
3193		}
3194
3195		/**
3196	<	* runAfterBothAsync result completes exceptionally if either source cancelled
3196	>	* anyOf result completes exceptionally when any component does.
3197		*/
3198	<	public void testRunAfterBothAsync4() {
3199	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3200	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3201	<	Noop r = new Noop();
3202	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r);
3203	<	assertTrue(f.cancel(true));
3204	<	f2.complete(two);
3205	<	checkCompletedWithWrappedCancellationException(g);
3206	<
3207	<	r = new Noop();
3208	<	f = new CompletableFuture<Integer>();
3209	<	f2 = new CompletableFuture<Integer>();
3210	<	g = f.runAfterBothAsync(f2, r);
3211	<	f.complete(one);
3212	<	assertTrue(f2.cancel(true));
3213	<	checkCompletedWithWrappedCancellationException(g);
3198	>	public void testAnyOf_exceptional() throws Exception {
3199	>	for (int k = 0; k < 10; k++) {
3200	>	CompletableFuture[] fs = new CompletableFuture[k];
3201	>	CFException[] exs = new CFException[k];
3202	>	for (int i = 0; i < k; i++) {
3203	>	fs[i] = new CompletableFuture<>();
3204	>	exs[i] = new CFException();
3205	>	}
3206	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3207	>	checkIncomplete(f);
3208	>	for (int i = 0; i < k; i++) {
3209	>	fs[i].completeExceptionally(exs[i]);
3210	>	checkCompletedWithWrappedException(f, exs[0]);
3211	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3212	>	}
3213	>	}
3214		}
3215
3216	<	/**
3217	<	* applyToEitherAsync result completes normally after normal
3218	<	* completion of sources
3219	<	*/
3220	<	public void testApplyToEitherAsync() {
3221	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3222	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3223	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
3224	<	f.complete(one);
3225	<	checkCompletedNormally(g, two);
3226	<
3227	<	f = new CompletableFuture<Integer>();
3228	<	f.complete(one);
3229	<	f2 = new CompletableFuture<Integer>();
3230	<	g = f.applyToEitherAsync(f2, inc);
3231	<	checkCompletedNormally(g, two);
3216	>	public void testAnyOf_exceptional_backwards() throws Exception {
3217	>	for (int k = 0; k < 10; k++) {
3218	>	CompletableFuture[] fs = new CompletableFuture[k];
3219	>	CFException[] exs = new CFException[k];
3220	>	for (int i = 0; i < k; i++) {
3221	>	fs[i] = new CompletableFuture<>();
3222	>	exs[i] = new CFException();
3223	>	}
3224	>	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
3225	>	checkIncomplete(f);
3226	>	for (int i = k - 1; i >= 0; i--) {
3227	>	fs[i].completeExceptionally(exs[i]);
3228	>	checkCompletedWithWrappedException(f, exs[k - 1]);
3229	>	checkCompletedWithWrappedCFException(CompletableFuture.anyOf(fs));
3230	>	}
3231	>	}
3232		}
3233
3234		/**
3235	<	* applyToEitherAsync result completes exceptionally after exceptional
1471	<	* completion of source
3235	>	* Completion methods throw NullPointerException with null arguments
3236		*/
3237	<	public void testApplyToEitherAsync2() {
3238	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3239	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3240	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
3241	<	f.completeExceptionally(new CFException());
3242	<	checkCompletedWithWrappedCFException(g);
3237	>	@SuppressWarnings("FutureReturnValueIgnored")
3238	>	public void testNPE() {
3239	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3240	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3241	>	CompletableFuture<Integer> nullFuture = (CompletableFuture<Integer>)null;
3242	>	ThreadExecutor exec = new ThreadExecutor();
3243	>
3244	>	Runnable[] throwingActions = {
3245	>	() -> CompletableFuture.supplyAsync(null),
3246	>	() -> CompletableFuture.supplyAsync(null, exec),
3247	>	() -> CompletableFuture.supplyAsync(new IntegerSupplier(ExecutionMode.SYNC, 42), null),
3248	>
3249	>	() -> CompletableFuture.runAsync(null),
3250	>	() -> CompletableFuture.runAsync(null, exec),
3251	>	() -> CompletableFuture.runAsync(() -> {}, null),
3252	>
3253	>	() -> f.completeExceptionally(null),
3254	>
3255	>	() -> f.thenApply(null),
3256	>	() -> f.thenApplyAsync(null),
3257	>	() -> f.thenApplyAsync(x -> x, null),
3258	>	() -> f.thenApplyAsync(null, exec),
3259	>
3260	>	() -> f.thenAccept(null),
3261	>	() -> f.thenAcceptAsync(null),
3262	>	() -> f.thenAcceptAsync(x -> {} , null),
3263	>	() -> f.thenAcceptAsync(null, exec),
3264	>
3265	>	() -> f.thenRun(null),
3266	>	() -> f.thenRunAsync(null),
3267	>	() -> f.thenRunAsync(() -> {} , null),
3268	>	() -> f.thenRunAsync(null, exec),
3269	>
3270	>	() -> f.thenCombine(g, null),
3271	>	() -> f.thenCombineAsync(g, null),
3272	>	() -> f.thenCombineAsync(g, null, exec),
3273	>	() -> f.thenCombine(nullFuture, (x, y) -> x),
3274	>	() -> f.thenCombineAsync(nullFuture, (x, y) -> x),
3275	>	() -> f.thenCombineAsync(nullFuture, (x, y) -> x, exec),
3276	>	() -> f.thenCombineAsync(g, (x, y) -> x, null),
3277	>
3278	>	() -> f.thenAcceptBoth(g, null),
3279	>	() -> f.thenAcceptBothAsync(g, null),
3280	>	() -> f.thenAcceptBothAsync(g, null, exec),
3281	>	() -> f.thenAcceptBoth(nullFuture, (x, y) -> {}),
3282	>	() -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}),
3283	>	() -> f.thenAcceptBothAsync(nullFuture, (x, y) -> {}, exec),
3284	>	() -> f.thenAcceptBothAsync(g, (x, y) -> {}, null),
3285	>
3286	>	() -> f.runAfterBoth(g, null),
3287	>	() -> f.runAfterBothAsync(g, null),
3288	>	() -> f.runAfterBothAsync(g, null, exec),
3289	>	() -> f.runAfterBoth(nullFuture, () -> {}),
3290	>	() -> f.runAfterBothAsync(nullFuture, () -> {}),
3291	>	() -> f.runAfterBothAsync(nullFuture, () -> {}, exec),
3292	>	() -> f.runAfterBothAsync(g, () -> {}, null),
3293	>
3294	>	() -> f.applyToEither(g, null),
3295	>	() -> f.applyToEitherAsync(g, null),
3296	>	() -> f.applyToEitherAsync(g, null, exec),
3297	>	() -> f.applyToEither(nullFuture, x -> x),
3298	>	() -> f.applyToEitherAsync(nullFuture, x -> x),
3299	>	() -> f.applyToEitherAsync(nullFuture, x -> x, exec),
3300	>	() -> f.applyToEitherAsync(g, x -> x, null),
3301	>
3302	>	() -> f.acceptEither(g, null),
3303	>	() -> f.acceptEitherAsync(g, null),
3304	>	() -> f.acceptEitherAsync(g, null, exec),
3305	>	() -> f.acceptEither(nullFuture, x -> {}),
3306	>	() -> f.acceptEitherAsync(nullFuture, x -> {}),
3307	>	() -> f.acceptEitherAsync(nullFuture, x -> {}, exec),
3308	>	() -> f.acceptEitherAsync(g, x -> {}, null),
3309	>
3310	>	() -> f.runAfterEither(g, null),
3311	>	() -> f.runAfterEitherAsync(g, null),
3312	>	() -> f.runAfterEitherAsync(g, null, exec),
3313	>	() -> f.runAfterEither(nullFuture, () -> {}),
3314	>	() -> f.runAfterEitherAsync(nullFuture, () -> {}),
3315	>	() -> f.runAfterEitherAsync(nullFuture, () -> {}, exec),
3316	>	() -> f.runAfterEitherAsync(g, () -> {}, null),
3317	>
3318	>	() -> f.thenCompose(null),
3319	>	() -> f.thenComposeAsync(null),
3320	>	() -> f.thenComposeAsync(new CompletableFutureInc(ExecutionMode.EXECUTOR), null),
3321	>	() -> f.thenComposeAsync(null, exec),
3322	>
3323	>	() -> f.exceptionally(null),
3324	>
3325	>	() -> f.handle(null),
3326	>
3327	>	() -> CompletableFuture.allOf((CompletableFuture<?>)null),
3328	>	() -> CompletableFuture.allOf((CompletableFuture<?>[])null),
3329	>	() -> CompletableFuture.allOf(f, null),
3330	>	() -> CompletableFuture.allOf(null, f),
3331	>
3332	>	() -> CompletableFuture.anyOf((CompletableFuture<?>)null),
3333	>	() -> CompletableFuture.anyOf((CompletableFuture<?>[])null),
3334	>	() -> CompletableFuture.anyOf(f, null),
3335	>	() -> CompletableFuture.anyOf(null, f),
3336	>
3337	>	() -> f.obtrudeException(null),
3338	>
3339	>	() -> CompletableFuture.delayedExecutor(1L, SECONDS, null),
3340	>	() -> CompletableFuture.delayedExecutor(1L, null, exec),
3341	>	() -> CompletableFuture.delayedExecutor(1L, null),
3342	>
3343	>	() -> f.orTimeout(1L, null),
3344	>	() -> f.completeOnTimeout(42, 1L, null),
3345	>
3346	>	() -> CompletableFuture.failedFuture(null),
3347	>	() -> CompletableFuture.failedStage(null),
3348	>	};
3349	>
3350	>	assertThrows(NullPointerException.class, throwingActions);
3351	>	assertEquals(0, exec.count.get());
3352	>	}
3353	>
3354	>	/**
3355	>	* Test submissions to an executor that rejects all tasks.
3356	>	*/
3357	>	public void testRejectingExecutor() {
3358	>	for (Integer v : new Integer[] { 1, null })
3359	>	{
3360	>	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3361	>
3362	>	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3363	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3364	>
3365	>	List<CompletableFuture<?>> futures = new ArrayList<>();
3366	>
3367	>	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3368	>	srcs.add(complete);
3369	>	srcs.add(incomplete);
3370	>
3371	>	for (CompletableFuture<Integer> src : srcs) {
3372	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3373	>	fs.add(src.thenRunAsync(() -> {}, e));
3374	>	fs.add(src.thenAcceptAsync(z -> {}, e));
3375	>	fs.add(src.thenApplyAsync(z -> z, e));
3376	>
3377	>	fs.add(src.thenCombineAsync(src, (x, y) -> x, e));
3378	>	fs.add(src.thenAcceptBothAsync(src, (x, y) -> {}, e));
3379	>	fs.add(src.runAfterBothAsync(src, () -> {}, e));
3380	>
3381	>	fs.add(src.applyToEitherAsync(src, z -> z, e));
3382	>	fs.add(src.acceptEitherAsync(src, z -> {}, e));
3383	>	fs.add(src.runAfterEitherAsync(src, () -> {}, e));
3384	>
3385	>	fs.add(src.thenComposeAsync(z -> null, e));
3386	>	fs.add(src.whenCompleteAsync((z, t) -> {}, e));
3387	>	fs.add(src.handleAsync((z, t) -> null, e));
3388	>
3389	>	for (CompletableFuture<?> future : fs) {
3390	>	if (src.isDone())
3391	>	checkCompletedWithWrappedException(future, e.ex);
3392	>	else
3393	>	checkIncomplete(future);
3394	>	}
3395	>	futures.addAll(fs);
3396	>	}
3397
3398	<	f = new CompletableFuture<Integer>();
3399	<	f2 = new CompletableFuture<Integer>();
1482	<	f2.completeExceptionally(new CFException());
1483	<	g = f.applyToEitherAsync(f2, inc);
1484	<	f.complete(one);
1485	<	checkCompletedWithWrappedCFException(g);
1486	<	}
3398	>	{
3399	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3400
3401	<	/**
3402	<	* applyToEitherAsync result completes exceptionally if action does
1490	<	*/
1491	<	public void testApplyToEitherAsync3() {
1492	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1493	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1494	<	FailingFunction r = new FailingFunction();
1495	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r);
1496	<	f.complete(one);
1497	<	checkCompletedWithWrappedCFException(g);
1498	<	}
3401	>	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3402	>	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3403
3404	<	/**
3405	<	* applyToEitherAsync result completes exceptionally if either source cancelled
1502	<	*/
1503	<	public void testApplyToEitherAsync4() {
1504	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1505	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1506	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc);
1507	<	assertTrue(f.cancel(true));
1508	<	checkCompletedWithWrappedCancellationException(g);
3404	>	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3405	>	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3406
3407	<	f = new CompletableFuture<Integer>();
3408	<	f2 = new CompletableFuture<Integer>();
1512	<	assertTrue(f2.cancel(true));
1513	<	g = f.applyToEitherAsync(f2, inc);
1514	<	checkCompletedWithWrappedCancellationException(g);
1515	<	}
3407	>	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3408	>	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3409
3410	<	/**
3411	<	* acceptEitherAsync result completes normally after normal
3412	<	* completion of sources
3413	<	*/
1521	<	public void testAcceptEitherAsync() {
1522	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1523	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1524	<	IncAction r = new IncAction();
1525	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1526	<	f.complete(one);
1527	<	checkCompletedNormally(g, null);
1528	<	assertEquals(r.value, 2);
3410	>	for (CompletableFuture<?> future : fs)
3411	>	checkIncomplete(future);
3412	>	futures.addAll(fs);
3413	>	}
3414
3415	<	r = new IncAction();
3416	<	f = new CompletableFuture<Integer>();
1532	<	f.complete(one);
1533	<	f2 = new CompletableFuture<Integer>();
1534	<	g = f.acceptEitherAsync(f2, r);
1535	<	checkCompletedNormally(g, null);
1536	<	assertEquals(r.value, 2);
1537	<	}
3415	>	{
3416	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3417
3418	<	/**
3419	<	* acceptEitherAsync result completes exceptionally after exceptional
1541	<	* completion of source
1542	<	*/
1543	<	public void testAcceptEitherAsync2() {
1544	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1545	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1546	<	IncAction r = new IncAction();
1547	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1548	<	f.completeExceptionally(new CFException());
1549	<	checkCompletedWithWrappedCFException(g);
3418	>	fs.add(complete.applyToEitherAsync(incomplete, z -> z, e));
3419	>	fs.add(incomplete.applyToEitherAsync(complete, z -> z, e));
3420
3421	<	r = new IncAction();
3422	<	f = new CompletableFuture<Integer>();
1553	<	f2 = new CompletableFuture<Integer>();
1554	<	f2.completeExceptionally(new CFException());
1555	<	g = f.acceptEitherAsync(f2, r);
1556	<	f.complete(one);
1557	<	checkCompletedWithWrappedCFException(g);
1558	<	}
3421	>	fs.add(complete.acceptEitherAsync(incomplete, z -> {}, e));
3422	>	fs.add(incomplete.acceptEitherAsync(complete, z -> {}, e));
3423
3424	<	/**
3425	<	* acceptEitherAsync result completes exceptionally if action does
1562	<	*/
1563	<	public void testAcceptEitherAsync3() {
1564	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1565	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1566	<	FailingConsumer r = new FailingConsumer();
1567	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1568	<	f.complete(one);
1569	<	checkCompletedWithWrappedCFException(g);
1570	<	}
3424	>	fs.add(complete.runAfterEitherAsync(incomplete, () -> {}, e));
3425	>	fs.add(incomplete.runAfterEitherAsync(complete, () -> {}, e));
3426
3427	<	/**
3428	<	* acceptEitherAsync result completes exceptionally if either
3429	<	* source cancelled
3430	<	*/
1576	<	public void testAcceptEitherAsync4() {
1577	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1578	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1579	<	IncAction r = new IncAction();
1580	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r);
1581	<	assertTrue(f.cancel(true));
1582	<	checkCompletedWithWrappedCancellationException(g);
3427	>	for (CompletableFuture<?> future : fs)
3428	>	checkCompletedWithWrappedException(future, e.ex);
3429	>	futures.addAll(fs);
3430	>	}
3431
3432	<	r = new IncAction();
1585	<	f = new CompletableFuture<Integer>();
1586	<	f2 = new CompletableFuture<Integer>();
1587	<	assertTrue(f2.cancel(true));
1588	<	g = f.acceptEitherAsync(f2, r);
1589	<	checkCompletedWithWrappedCancellationException(g);
1590	<	}
3432	>	incomplete.complete(v);
3433
3434	<	/**
3435	<	* runAfterEitherAsync result completes normally after normal
1594	<	* completion of sources
1595	<	*/
1596	<	public void testRunAfterEitherAsync() {
1597	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1598	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1599	<	Noop r = new Noop();
1600	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1601	<	f.complete(one);
1602	<	checkCompletedNormally(g, null);
1603	<	assertTrue(r.ran);
3434	>	for (CompletableFuture<?> future : futures)
3435	>	checkCompletedWithWrappedException(future, e.ex);
3436
3437	<	r = new Noop();
3438	<	f = new CompletableFuture<Integer>();
1607	<	f.complete(one);
1608	<	f2 = new CompletableFuture<Integer>();
1609	<	g = f.runAfterEitherAsync(f2, r);
1610	<	checkCompletedNormally(g, null);
1611	<	assertTrue(r.ran);
1612	<	}
3437	>	assertEquals(futures.size(), e.count.get());
3438	>	}}
3439
3440		/**
3441	<	* runAfterEitherAsync result completes exceptionally after exceptional
3442	<	* completion of source
3441	>	* Test submissions to an executor that rejects all tasks, but
3442	>	* should never be invoked because the dependent future is
3443	>	* explicitly completed.
3444		*/
3445	<	public void testRunAfterEitherAsync2() {
3446	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3447	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3448	<	Noop r = new Noop();
1622	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1623	<	f.completeExceptionally(new CFException());
1624	<	checkCompletedWithWrappedCFException(g);
3445	>	public void testRejectingExecutorNeverInvoked() {
3446	>	for (Integer v : new Integer[] { 1, null })
3447	>	{
3448	>	final CountingRejectingExecutor e = new CountingRejectingExecutor();
3449
3450	<	r = new Noop();
3451	<	f = new CompletableFuture<Integer>();
1628	<	f2 = new CompletableFuture<Integer>();
1629	<	f2.completeExceptionally(new CFException());
1630	<	g = f.runAfterEitherAsync(f2, r);
1631	<	f.complete(one);
1632	<	checkCompletedWithWrappedCFException(g);
1633	<	}
3450	>	final CompletableFuture<Integer> complete = CompletableFuture.completedFuture(v);
3451	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3452
3453	<	/**
1636	<	* runAfterEitherAsync result completes exceptionally if action does
1637	<	*/
1638	<	public void testRunAfterEitherAsync3() {
1639	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1640	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1641	<	FailingNoop r = new FailingNoop();
1642	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1643	<	f.complete(one);
1644	<	checkCompletedWithWrappedCFException(g);
1645	<	}
3453	>	List<CompletableFuture<?>> futures = new ArrayList<>();
3454
3455	<	/**
3456	<	* runAfterEitherAsync result completes exceptionally if either
3457	<	* source cancelled
1650	<	*/
1651	<	public void testRunAfterEitherAsync4() {
1652	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1653	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1654	<	Noop r = new Noop();
1655	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r);
1656	<	assertTrue(f.cancel(true));
1657	<	checkCompletedWithWrappedCancellationException(g);
3455	>	List<CompletableFuture<Integer>> srcs = new ArrayList<>();
3456	>	srcs.add(complete);
3457	>	srcs.add(incomplete);
3458
3459	<	r = new Noop();
3460	<	f = new CompletableFuture<Integer>();
3461	<	f2 = new CompletableFuture<Integer>();
3462	<	assertTrue(f2.cancel(true));
1663	<	g = f.runAfterEitherAsync(f2, r);
1664	<	checkCompletedWithWrappedCancellationException(g);
1665	<	}
3459	>	List<CompletableFuture<?>> fs = new ArrayList<>();
3460	>	fs.add(incomplete.thenRunAsync(() -> {}, e));
3461	>	fs.add(incomplete.thenAcceptAsync(z -> {}, e));
3462	>	fs.add(incomplete.thenApplyAsync(z -> z, e));
3463
3464	<	/**
3465	<	* thenComposeAsync result completes normally after normal
3466	<	* completion of source
1670	<	*/
1671	<	public void testThenComposeAsync() {
1672	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1673	<	CompletableFutureInc r = new CompletableFutureInc();
1674	<	CompletableFuture<Integer> g = f.thenComposeAsync(r);
1675	<	f.complete(one);
1676	<	checkCompletedNormally(g, two);
1677	<	}
3464	>	fs.add(incomplete.thenCombineAsync(incomplete, (x, y) -> x, e));
3465	>	fs.add(incomplete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3466	>	fs.add(incomplete.runAfterBothAsync(incomplete, () -> {}, e));
3467
3468	<	/**
3469	<	* thenComposeAsync result completes exceptionally after
3470	<	* exceptional completion of source
1682	<	*/
1683	<	public void testThenComposeAsync2() {
1684	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1685	<	CompletableFutureInc r = new CompletableFutureInc();
1686	<	CompletableFuture<Integer> g = f.thenComposeAsync(r);
1687	<	f.completeExceptionally(new CFException());
1688	<	checkCompletedWithWrappedCFException(g);
1689	<	}
3468	>	fs.add(incomplete.applyToEitherAsync(incomplete, z -> z, e));
3469	>	fs.add(incomplete.acceptEitherAsync(incomplete, z -> {}, e));
3470	>	fs.add(incomplete.runAfterEitherAsync(incomplete, () -> {}, e));
3471
3472	<	/**
3473	<	* thenComposeAsync result completes exceptionally if action does
3474	<	*/
1694	<	public void testThenComposeAsync3() {
1695	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1696	<	FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
1697	<	CompletableFuture<Integer> g = f.thenComposeAsync(r);
1698	<	f.complete(one);
1699	<	checkCompletedWithWrappedCFException(g);
1700	<	}
3472	>	fs.add(incomplete.thenComposeAsync(z -> null, e));
3473	>	fs.add(incomplete.whenCompleteAsync((z, t) -> {}, e));
3474	>	fs.add(incomplete.handleAsync((z, t) -> null, e));
3475
3476	<	/**
3477	<	* thenComposeAsync result completes exceptionally if source cancelled
1704	<	*/
1705	<	public void testThenComposeAsync4() {
1706	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1707	<	CompletableFutureInc r = new CompletableFutureInc();
1708	<	CompletableFuture<Integer> g = f.thenComposeAsync(r);
1709	<	assertTrue(f.cancel(true));
1710	<	checkCompletedWithWrappedCancellationException(g);
1711	<	}
3476	>	fs.add(complete.thenCombineAsync(incomplete, (x, y) -> x, e));
3477	>	fs.add(incomplete.thenCombineAsync(complete, (x, y) -> x, e));
3478
3479	+	fs.add(complete.thenAcceptBothAsync(incomplete, (x, y) -> {}, e));
3480	+	fs.add(incomplete.thenAcceptBothAsync(complete, (x, y) -> {}, e));
3481
3482	<	// async with explicit executors
3482	>	fs.add(complete.runAfterBothAsync(incomplete, () -> {}, e));
3483	>	fs.add(incomplete.runAfterBothAsync(complete, () -> {}, e));
3484
3485	<	/**
3486	<	* thenRunAsync result completes normally after normal completion of source
1718	<	*/
1719	<	public void testThenRunAsyncE() {
1720	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1721	<	Noop r = new Noop();
1722	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
1723	<	f.complete(null);
1724	<	checkCompletedNormally(g, null);
3485	>	for (CompletableFuture<?> future : fs)
3486	>	checkIncomplete(future);
3487
3488	<	// reordered version
3489	<	f = new CompletableFuture<Integer>();
1728	<	f.complete(null);
1729	<	r = new Noop();
1730	<	g = f.thenRunAsync(r, new ThreadExecutor());
1731	<	checkCompletedNormally(g, null);
1732	<	}
3488	>	for (CompletableFuture<?> future : fs)
3489	>	future.complete(null);
3490
3491	<	/**
1735	<	* thenRunAsync result completes exceptionally after exceptional
1736	<	* completion of source
1737	<	*/
1738	<	public void testThenRunAsync2E() {
1739	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1740	<	Noop r = new Noop();
1741	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
1742	<	f.completeExceptionally(new CFException());
1743	<	try {
1744	<	g.join();
1745	<	shouldThrow();
1746	<	} catch (Exception ok) {
1747	<	}
1748	<	checkCompletedWithWrappedCFException(g);
1749	<	}
3491	>	incomplete.complete(v);
3492
3493	<	/**
3494	<	* thenRunAsync result completes exceptionally if action does
1753	<	*/
1754	<	public void testThenRunAsync3E() {
1755	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1756	<	FailingNoop r = new FailingNoop();
1757	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
1758	<	f.complete(null);
1759	<	checkCompletedWithWrappedCFException(g);
1760	<	}
3493	>	for (CompletableFuture<?> future : fs)
3494	>	checkCompletedNormally(future, null);
3495
3496	<	/**
3497	<	* thenRunAsync result completes exceptionally if source cancelled
1764	<	*/
1765	<	public void testThenRunAsync4E() {
1766	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1767	<	Noop r = new Noop();
1768	<	CompletableFuture<Void> g = f.thenRunAsync(r, new ThreadExecutor());
1769	<	assertTrue(f.cancel(true));
1770	<	checkCompletedWithWrappedCancellationException(g);
1771	<	}
3496	>	assertEquals(0, e.count.get());
3497	>	}}
3498
3499		/**
3500	<	* thenApplyAsync result completes normally after normal completion of source
3500	>	* toCompletableFuture returns this CompletableFuture.
3501		*/
3502	<	public void testThenApplyAsyncE() {
3503	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3504	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
1779	<	f.complete(one);
1780	<	checkCompletedNormally(g, two);
3502	>	public void testToCompletableFuture() {
3503	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3504	>	assertSame(f, f.toCompletableFuture());
3505		}
3506
3507	<	/**
1784	<	* thenApplyAsync result completes exceptionally after exceptional
1785	<	* completion of source
1786	<	*/
1787	<	public void testThenApplyAsync2E() {
1788	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1789	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
1790	<	f.completeExceptionally(new CFException());
1791	<	checkCompletedWithWrappedCFException(g);
1792	<	}
3507	>	// jdk9
3508
3509		/**
3510	<	* thenApplyAsync result completes exceptionally if action does
3510	>	* newIncompleteFuture returns an incomplete CompletableFuture
3511		*/
3512	<	public void testThenApplyAsync3E() {
3513	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3514	<	FailingFunction r = new FailingFunction();
3515	<	CompletableFuture<Integer> g = f.thenApplyAsync(r, new ThreadExecutor());
3516	<	f.complete(null);
3517	<	checkCompletedWithWrappedCFException(g);
3518	<	}
3519	<
3520	<	/**
3521	<	* thenApplyAsync result completes exceptionally if source cancelled
3522	<	*/
3523	<	public void testThenApplyAsync4E() {
3524	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3525	<	CompletableFuture<Integer> g = f.thenApplyAsync(inc, new ThreadExecutor());
1811	<	assertTrue(f.cancel(true));
1812	<	checkCompletedWithWrappedCancellationException(g);
1813	<	}
3512	>	public void testNewIncompleteFuture() {
3513	>	for (Integer v1 : new Integer[] { 1, null })
3514	>	{
3515	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3516	>	CompletableFuture<Integer> g = f.newIncompleteFuture();
3517	>	checkIncomplete(f);
3518	>	checkIncomplete(g);
3519	>	f.complete(v1);
3520	>	checkCompletedNormally(f, v1);
3521	>	checkIncomplete(g);
3522	>	g.complete(v1);
3523	>	checkCompletedNormally(g, v1);
3524	>	assertSame(g.getClass(), CompletableFuture.class);
3525	>	}}
3526
3527		/**
3528	<	* thenAcceptAsync result completes normally after normal
1817	<	* completion of source
3528	>	* completedStage returns a completed CompletionStage
3529		*/
3530	<	public void testThenAcceptAsyncE() {
3531	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3532	<	IncAction r = new IncAction();
3533	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3534	<	f.complete(one);
3535	<	checkCompletedNormally(g, null);
3536	<	assertEquals(r.value, 2);
3530	>	public void testCompletedStage() {
3531	>	AtomicInteger x = new AtomicInteger(0);
3532	>	AtomicReference<Throwable> r = new AtomicReference<>();
3533	>	CompletionStage<Integer> f = CompletableFuture.completedStage(1);
3534	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3535	>	assertEquals(x.get(), 1);
3536	>	assertNull(r.get());
3537		}
3538
3539		/**
3540	<	* thenAcceptAsync result completes exceptionally after exceptional
3541	<	* completion of source
3540	>	* defaultExecutor by default returns the commonPool if
3541	>	* it supports more than one thread.
3542		*/
3543	<	public void testThenAcceptAsync2E() {
3544	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3545	<	IncAction r = new IncAction();
3546	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
3547	<	f.completeExceptionally(new CFException());
3548	<	checkCompletedWithWrappedCFException(g);
3543	>	public void testDefaultExecutor() {
3544	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3545	>	Executor e = f.defaultExecutor();
3546	>	Executor c = ForkJoinPool.commonPool();
3547	>	if (ForkJoinPool.getCommonPoolParallelism() > 1)
3548	>	assertSame(e, c);
3549	>	else
3550	>	assertNotSame(e, c);
3551		}
3552
3553		/**
3554	<	* thenAcceptAsync result completes exceptionally if action does
3554	>	* failedFuture returns a CompletableFuture completed
3555	>	* exceptionally with the given Exception
3556		*/
3557	<	public void testThenAcceptAsync3E() {
3558	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3559	<	FailingConsumer r = new FailingConsumer();
3560	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
1847	<	f.complete(null);
1848	<	checkCompletedWithWrappedCFException(g);
3557	>	public void testFailedFuture() {
3558	>	CFException ex = new CFException();
3559	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(ex);
3560	>	checkCompletedExceptionally(f, ex);
3561		}
3562
3563		/**
3564	<	* thenAcceptAsync result completes exceptionally if source cancelled
1853	<	*/
1854	<	public void testThenAcceptAsync4E() {
1855	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1856	<	IncAction r = new IncAction();
1857	<	CompletableFuture<Void> g = f.thenAcceptAsync(r, new ThreadExecutor());
1858	<	assertTrue(f.cancel(true));
1859	<	checkCompletedWithWrappedCancellationException(g);
1860	<	}
1861	<	/**
1862	<	* thenCombineAsync result completes normally after normal
1863	<	* completion of sources
3564	>	* failedFuture(null) throws NPE
3565		*/
3566	<	public void testThenCombineAsyncE() {
3567	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3568	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3569	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, add, new ThreadExecutor());
3570	<	f.complete(one);
1870	<	checkIncomplete(g);
1871	<	f2.complete(two);
1872	<	checkCompletedNormally(g, three);
3566	>	public void testFailedFuture_null() {
3567	>	try {
3568	>	CompletableFuture<Integer> f = CompletableFuture.failedFuture(null);
3569	>	shouldThrow();
3570	>	} catch (NullPointerException success) {}
3571		}
3572
3573		/**
3574	<	* thenCombineAsync result completes exceptionally after exceptional
3575	<	* completion of source
3574	>	* copy returns a CompletableFuture that is completed normally,
3575	>	* with the same value, when source is.
3576		*/
3577	<	public void testThenCombineAsync2E() {
3578	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3579	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3580	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, add, new ThreadExecutor());
3581	<	f.completeExceptionally(new CFException());
3582	<	f2.complete(two);
3583	<	checkCompletedWithWrappedCFException(g);
3584	<
3585	<	f = new CompletableFuture<Integer>();
3586	<	f2 = new CompletableFuture<Integer>();
3587	<	g = f.thenCombineAsync(f2, add, new ThreadExecutor());
3588	<	f.complete(one);
3589	<	f2.completeExceptionally(new CFException());
3590	<	checkCompletedWithWrappedCFException(g);
3591	<	}
3592	<
3593	<	/**
3594	<	* thenCombineAsync result completes exceptionally if action does
3595	<	*/
3596	<	public void testThenCombineAsync3E() {
3597	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3598	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3599	<	FailingBiFunction r = new FailingBiFunction();
3600	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, r, new ThreadExecutor());
3601	<	f.complete(one);
3602	<	checkIncomplete(g);
3603	<	f2.complete(two);
3604	<	checkCompletedWithWrappedCFException(g);
3605	<	}
3577	>	public void testCopy_normalCompletion() {
3578	>	for (boolean createIncomplete : new boolean[] { true, false })
3579	>	for (Integer v1 : new Integer[] { 1, null })
3580	>	{
3581	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3582	>	if (!createIncomplete) assertTrue(f.complete(v1));
3583	>	CompletableFuture<Integer> g = f.copy();
3584	>	if (createIncomplete) {
3585	>	checkIncomplete(f);
3586	>	checkIncomplete(g);
3587	>	assertTrue(f.complete(v1));
3588	>	}
3589	>	checkCompletedNormally(f, v1);
3590	>	checkCompletedNormally(g, v1);
3591	>	}}
3592	>
3593	>	/**
3594	>	* copy returns a CompletableFuture that is completed exceptionally
3595	>	* when source is.
3596	>	*/
3597	>	public void testCopy_exceptionalCompletion() {
3598	>	for (boolean createIncomplete : new boolean[] { true, false })
3599	>	{
3600	>	CFException ex = new CFException();
3601	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3602	>	if (!createIncomplete) f.completeExceptionally(ex);
3603	>	CompletableFuture<Integer> g = f.copy();
3604	>	if (createIncomplete) {
3605	>	checkIncomplete(f);
3606	>	checkIncomplete(g);
3607	>	f.completeExceptionally(ex);
3608	>	}
3609	>	checkCompletedExceptionally(f, ex);
3610	>	checkCompletedWithWrappedException(g, ex);
3611	>	}}
3612
3613		/**
3614	<	* thenCombineAsync result completes exceptionally if either source cancelled
3615	<	*/
3616	<	public void testThenCombineAsync4E() {
3617	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3618	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3619	<	CompletableFuture<Integer> g = f.thenCombineAsync(f2, add, new ThreadExecutor());
3620	<	assertTrue(f.cancel(true));
3621	<	f2.complete(two);
3622	<	checkCompletedWithWrappedCancellationException(g);
3623	<
1920	<	f = new CompletableFuture<Integer>();
1921	<	f2 = new CompletableFuture<Integer>();
1922	<	g = f.thenCombineAsync(f2, add, new ThreadExecutor());
1923	<	f.complete(one);
1924	<	assertTrue(f2.cancel(true));
1925	<	checkCompletedWithWrappedCancellationException(g);
3614	>	* Completion of a copy does not complete its source.
3615	>	*/
3616	>	public void testCopy_oneWayPropagation() {
3617	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3618	>	assertTrue(f.copy().complete(1));
3619	>	assertTrue(f.copy().complete(null));
3620	>	assertTrue(f.copy().cancel(true));
3621	>	assertTrue(f.copy().cancel(false));
3622	>	assertTrue(f.copy().completeExceptionally(new CFException()));
3623	>	checkIncomplete(f);
3624		}
3625
3626		/**
3627	<	* thenAcceptBothAsync result completes normally after normal
3628	<	* completion of sources
3627	>	* minimalCompletionStage returns a CompletableFuture that is
3628	>	* completed normally, with the same value, when source is.
3629		*/
3630	<	public void testThenAcceptBothAsyncE() {
3631	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3632	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3633	<	AddAction r = new AddAction();
3634	<	CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
3635	<	f.complete(one);
3636	<	checkIncomplete(g);
3637	<	f2.complete(two);
3638	<	checkCompletedNormally(g, null);
3639	<	assertEquals(r.value, 3);
3630	>	public void testMinimalCompletionStage() {
3631	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3632	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3633	>	AtomicInteger x = new AtomicInteger(0);
3634	>	AtomicReference<Throwable> r = new AtomicReference<>();
3635	>	checkIncomplete(f);
3636	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3637	>	f.complete(1);
3638	>	checkCompletedNormally(f, 1);
3639	>	assertEquals(x.get(), 1);
3640	>	assertNull(r.get());
3641		}
3642
3643		/**
3644	<	* thenAcceptBothAsync result completes exceptionally after exceptional
3645	<	* completion of source
3644	>	* minimalCompletionStage returns a CompletableFuture that is
3645	>	* completed exceptionally when source is.
3646		*/
3647	<	public void testThenAcceptBothAsync2E() {
3648	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3649	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3650	<	AddAction r = new AddAction();
3651	<	CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
3652	<	f.completeExceptionally(new CFException());
3653	<	f2.complete(two);
3654	<	checkCompletedWithWrappedCFException(g);
3655	<
3656	<	r = new AddAction();
3657	<	f = new CompletableFuture<Integer>();
3658	<	f2 = new CompletableFuture<Integer>();
1960	<	g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
1961	<	f.complete(one);
1962	<	f2.completeExceptionally(new CFException());
1963	<	checkCompletedWithWrappedCFException(g);
1964	<	}
1965	<
1966	<	/**
1967	<	* thenAcceptBothAsync result completes exceptionally if action does
1968	<	*/
1969	<	public void testThenAcceptBothAsync3E() {
1970	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
1971	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
1972	<	FailingBiConsumer r = new FailingBiConsumer();
1973	<	CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
1974	<	f.complete(one);
1975	<	checkIncomplete(g);
1976	<	f2.complete(two);
1977	<	checkCompletedWithWrappedCFException(g);
3647	>	public void testMinimalCompletionStage2() {
3648	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3649	>	CompletionStage<Integer> g = f.minimalCompletionStage();
3650	>	AtomicInteger x = new AtomicInteger(0);
3651	>	AtomicReference<Throwable> r = new AtomicReference<>();
3652	>	g.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3653	>	checkIncomplete(f);
3654	>	CFException ex = new CFException();
3655	>	f.completeExceptionally(ex);
3656	>	checkCompletedExceptionally(f, ex);
3657	>	assertEquals(x.get(), 0);
3658	>	assertEquals(r.get().getCause(), ex);
3659		}
3660
3661		/**
3662	<	* thenAcceptBothAsync result completes exceptionally if either source cancelled
3662	>	* failedStage returns a CompletionStage completed
3663	>	* exceptionally with the given Exception
3664		*/
3665	<	public void testThenAcceptBothAsync4E() {
3666	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3667	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3668	<	AddAction r = new AddAction();
3669	<	CompletableFuture<Void> g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
3670	<	assertTrue(f.cancel(true));
3671	<	f2.complete(two);
3672	<	checkCompletedWithWrappedCancellationException(g);
1991	<
1992	<	r = new AddAction();
1993	<	f = new CompletableFuture<Integer>();
1994	<	f2 = new CompletableFuture<Integer>();
1995	<	g = f.thenAcceptBothAsync(f2, r, new ThreadExecutor());
1996	<	f.complete(one);
1997	<	assertTrue(f2.cancel(true));
1998	<	checkCompletedWithWrappedCancellationException(g);
3665	>	public void testFailedStage() {
3666	>	CFException ex = new CFException();
3667	>	CompletionStage<Integer> f = CompletableFuture.failedStage(ex);
3668	>	AtomicInteger x = new AtomicInteger(0);
3669	>	AtomicReference<Throwable> r = new AtomicReference<>();
3670	>	f.whenComplete((v, e) -> {if (e != null) r.set(e); else x.set(v);});
3671	>	assertEquals(x.get(), 0);
3672	>	assertEquals(r.get(), ex);
3673		}
3674
3675		/**
3676	<	* runAfterBothAsync result completes normally after normal
2003	<	* completion of sources
3676	>	* completeAsync completes with value of given supplier
3677		*/
3678	<	public void testRunAfterBothAsyncE() {
3679	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3680	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3681	<	Noop r = new Noop();
3682	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
3683	<	f.complete(one);
3684	<	checkIncomplete(g);
3685	<	f2.complete(two);
2013	<	checkCompletedNormally(g, null);
2014	<	assertTrue(r.ran);
2015	<	}
3678	>	public void testCompleteAsync() {
3679	>	for (Integer v1 : new Integer[] { 1, null })
3680	>	{
3681	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3682	>	f.completeAsync(() -> v1);
3683	>	f.join();
3684	>	checkCompletedNormally(f, v1);
3685	>	}}
3686
3687		/**
3688	<	* runAfterBothAsync result completes exceptionally after exceptional
2019	<	* completion of source
3688	>	* completeAsync completes exceptionally if given supplier throws
3689		*/
3690	<	public void testRunAfterBothAsync2E() {
3691	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3692	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3693	<	Noop r = new Noop();
3694	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
3695	<	f.completeExceptionally(new CFException());
3696	<	f2.complete(two);
3697	<	checkCompletedWithWrappedCFException(g);
3698	<
2030	<	r = new Noop();
2031	<	f = new CompletableFuture<Integer>();
2032	<	f2 = new CompletableFuture<Integer>();
2033	<	g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2034	<	f.complete(one);
2035	<	f2.completeExceptionally(new CFException());
2036	<	checkCompletedWithWrappedCFException(g);
2037	<	}
2038	<
2039	<	/**
2040	<	* runAfterBothAsync result completes exceptionally if action does
2041	<	*/
2042	<	public void testRunAfterBothAsync3E() {
2043	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2044	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2045	<	FailingNoop r = new FailingNoop();
2046	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2047	<	f.complete(one);
2048	<	checkIncomplete(g);
2049	<	f2.complete(two);
2050	<	checkCompletedWithWrappedCFException(g);
3690	>	public void testCompleteAsync2() {
3691	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3692	>	CFException ex = new CFException();
3693	>	f.completeAsync(() -> { throw ex; });
3694	>	try {
3695	>	f.join();
3696	>	shouldThrow();
3697	>	} catch (CompletionException success) {}
3698	>	checkCompletedWithWrappedException(f, ex);
3699		}
3700
3701		/**
3702	<	* runAfterBothAsync result completes exceptionally if either source cancelled
3702	>	* completeAsync with given executor completes with value of given supplier
3703		*/
3704	<	public void testRunAfterBothAsync4E() {
3705	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3706	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3707	<	Noop r = new Noop();
3708	<	CompletableFuture<Void> g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
3709	<	assertTrue(f.cancel(true));
3710	<	f2.complete(two);
3711	<	checkCompletedWithWrappedCancellationException(g);
3712	<
3713	<	r = new Noop();
2066	<	f = new CompletableFuture<Integer>();
2067	<	f2 = new CompletableFuture<Integer>();
2068	<	g = f.runAfterBothAsync(f2, r, new ThreadExecutor());
2069	<	f.complete(one);
2070	<	assertTrue(f2.cancel(true));
2071	<	checkCompletedWithWrappedCancellationException(g);
2072	<	}
3704	>	public void testCompleteAsync3() {
3705	>	for (Integer v1 : new Integer[] { 1, null })
3706	>	{
3707	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3708	>	ThreadExecutor executor = new ThreadExecutor();
3709	>	f.completeAsync(() -> v1, executor);
3710	>	assertSame(v1, f.join());
3711	>	checkCompletedNormally(f, v1);
3712	>	assertEquals(1, executor.count.get());
3713	>	}}
3714
3715		/**
3716	<	* applyToEitherAsync result completes normally after normal
3717	<	* completion of sources
3716	>	* completeAsync with given executor completes exceptionally if
3717	>	* given supplier throws
3718		*/
3719	<	public void testApplyToEitherAsyncE() {
3720	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3721	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3722	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
3723	<	f.complete(one);
3724	<	checkCompletedNormally(g, two);
3725	<
3726	<	f = new CompletableFuture<Integer>();
3727	<	f.complete(one);
3728	<	f2 = new CompletableFuture<Integer>();
3729	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
3730	<	checkCompletedNormally(g, two);
3731	<	}
3719	>	public void testCompleteAsync4() {
3720	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3721	>	CFException ex = new CFException();
3722	>	ThreadExecutor executor = new ThreadExecutor();
3723	>	f.completeAsync(() -> { throw ex; }, executor);
3724	>	try {
3725	>	f.join();
3726	>	shouldThrow();
3727	>	} catch (CompletionException success) {}
3728	>	checkCompletedWithWrappedException(f, ex);
3729	>	assertEquals(1, executor.count.get());
3730	>	}
3731	>
3732	>	/**
3733	>	* orTimeout completes with TimeoutException if not complete
3734	>	*/
3735	>	public void testOrTimeout_timesOut() {
3736	>	long timeoutMillis = timeoutMillis();
3737	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3738	>	long startTime = System.nanoTime();
3739	>	assertSame(f, f.orTimeout(timeoutMillis, MILLISECONDS));
3740	>	checkCompletedWithTimeoutException(f);
3741	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3742	>	}
3743	>
3744	>	/**
3745	>	* orTimeout completes normally if completed before timeout
3746	>	*/
3747	>	public void testOrTimeout_completed() {
3748	>	for (Integer v1 : new Integer[] { 1, null })
3749	>	{
3750	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3751	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3752	>	long startTime = System.nanoTime();
3753	>	f.complete(v1);
3754	>	assertSame(f, f.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3755	>	assertSame(g, g.orTimeout(LONG_DELAY_MS, MILLISECONDS));
3756	>	g.complete(v1);
3757	>	checkCompletedNormally(f, v1);
3758	>	checkCompletedNormally(g, v1);
3759	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3760	>	}}
3761	>
3762	>	/**
3763	>	* completeOnTimeout completes with given value if not complete
3764	>	*/
3765	>	public void testCompleteOnTimeout_timesOut() {
3766	>	testInParallel(() -> testCompleteOnTimeout_timesOut(42),
3767	>	() -> testCompleteOnTimeout_timesOut(null));
3768	>	}
3769	>
3770	>	/**
3771	>	* completeOnTimeout completes with given value if not complete
3772	>	*/
3773	>	public void testCompleteOnTimeout_timesOut(Integer v) {
3774	>	long timeoutMillis = timeoutMillis();
3775	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3776	>	long startTime = System.nanoTime();
3777	>	assertSame(f, f.completeOnTimeout(v, timeoutMillis, MILLISECONDS));
3778	>	assertSame(v, f.join());
3779	>	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
3780	>	f.complete(99);         // should have no effect
3781	>	checkCompletedNormally(f, v);
3782	>	}
3783	>
3784	>	/**
3785	>	* completeOnTimeout has no effect if completed within timeout
3786	>	*/
3787	>	public void testCompleteOnTimeout_completed() {
3788	>	for (Integer v1 : new Integer[] { 1, null })
3789	>	{
3790	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3791	>	CompletableFuture<Integer> g = new CompletableFuture<>();
3792	>	long startTime = System.nanoTime();
3793	>	f.complete(v1);
3794	>	assertSame(f, f.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3795	>	assertSame(g, g.completeOnTimeout(-1, LONG_DELAY_MS, MILLISECONDS));
3796	>	g.complete(v1);
3797	>	checkCompletedNormally(f, v1);
3798	>	checkCompletedNormally(g, v1);
3799	>	assertTrue(millisElapsedSince(startTime) < LONG_DELAY_MS / 2);
3800	>	}}
3801	>
3802	>	/**
3803	>	* delayedExecutor returns an executor that delays submission
3804	>	*/
3805	>	public void testDelayedExecutor() {
3806	>	testInParallel(() -> testDelayedExecutor(null, null),
3807	>	() -> testDelayedExecutor(null, 1),
3808	>	() -> testDelayedExecutor(new ThreadExecutor(), 1),
3809	>	() -> testDelayedExecutor(new ThreadExecutor(), 1));
3810	>	}
3811	>
3812	>	public void testDelayedExecutor(Executor executor, Integer v) throws Exception {
3813	>	long timeoutMillis = timeoutMillis();
3814	>	// Use an "unreasonably long" long timeout to catch lingering threads
3815	>	long longTimeoutMillis = 1000 * 60 * 60 * 24;
3816	>	final Executor delayer, longDelayer;
3817	>	if (executor == null) {
3818	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS);
3819	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS);
3820	>	} else {
3821	>	delayer = CompletableFuture.delayedExecutor(timeoutMillis, MILLISECONDS, executor);
3822	>	longDelayer = CompletableFuture.delayedExecutor(longTimeoutMillis, MILLISECONDS, executor);
3823	>	}
3824	>	long startTime = System.nanoTime();
3825	>	CompletableFuture<Integer> f =
3826	>	CompletableFuture.supplyAsync(() -> v, delayer);
3827	>	CompletableFuture<Integer> g =
3828	>	CompletableFuture.supplyAsync(() -> v, longDelayer);
3829	>
3830	>	assertNull(g.getNow(null));
3831	>
3832	>	assertSame(v, f.get(LONG_DELAY_MS, MILLISECONDS));
3833	>	long millisElapsed = millisElapsedSince(startTime);
3834	>	assertTrue(millisElapsed >= timeoutMillis);
3835	>	assertTrue(millisElapsed < LONG_DELAY_MS / 2);
3836
3837	<	/**
2093	<	* applyToEitherAsync result completes exceptionally after exceptional
2094	<	* completion of source
2095	<	*/
2096	<	public void testApplyToEitherAsync2E() {
2097	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2098	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2099	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2100	<	f.completeExceptionally(new CFException());
2101	<	checkCompletedWithWrappedCFException(g);
3837	>	checkCompletedNormally(f, v);
3838
3839	<	f = new CompletableFuture<Integer>();
3840	<	f2 = new CompletableFuture<Integer>();
2105	<	f2.completeExceptionally(new CFException());
2106	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
2107	<	f.complete(one);
2108	<	checkCompletedWithWrappedCFException(g);
3839	>	checkIncomplete(g);
3840	>	assertTrue(g.cancel(true));
3841		}
3842
3843	<	/**
2112	<	* applyToEitherAsync result completes exceptionally if action does
2113	<	*/
2114	<	public void testApplyToEitherAsync3E() {
2115	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2116	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
2117	<	FailingFunction r = new FailingFunction();
2118	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, r, new ThreadExecutor());
2119	<	f.complete(one);
2120	<	checkCompletedWithWrappedCFException(g);
2121	<	}
3843	>	//--- tests of implementation details; not part of official tck ---
3844
3845	<	/**
3846	<	* applyToEitherAsync result completes exceptionally if either source cancelled
3847	<	*/
3848	<	public void testApplyToEitherAsync4E() {
3849	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3850	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3851	<	CompletableFuture<Integer> g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
3852	<	assertTrue(f.cancel(true));
3853	<	checkCompletedWithWrappedCancellationException(g);
3845	>	Object resultOf(CompletableFuture<?> f) {
3846	>	SecurityManager sm = System.getSecurityManager();
3847	>	if (sm != null) {
3848	>	try {
3849	>	System.setSecurityManager(null);
3850	>	} catch (SecurityException giveUp) {
3851	>	return "Reflection not available";
3852	>	}
3853	>	}
3854
3855	<	f = new CompletableFuture<Integer>();
3856	<	f2 = new CompletableFuture<Integer>();
3857	<	assertTrue(f2.cancel(true));
3858	<	g = f.applyToEitherAsync(f2, inc, new ThreadExecutor());
3859	<	checkCompletedWithWrappedCancellationException(g);
3855	>	try {
3856	>	java.lang.reflect.Field resultField
3857	>	= CompletableFuture.class.getDeclaredField("result");
3858	>	resultField.setAccessible(true);
3859	>	return resultField.get(f);
3860	>	} catch (Throwable t) {
3861	>	throw new AssertionError(t);
3862	>	} finally {
3863	>	if (sm != null) System.setSecurityManager(sm);
3864	>	}
3865		}
3866
3867	<	/**
3868	<	* acceptEitherAsync result completes normally after normal
3869	<	* completion of sources
3870	<	*/
3871	<	public void testAcceptEitherAsyncE() {
3872	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3873	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3874	<	IncAction r = new IncAction();
3875	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
3876	<	f.complete(one);
3877	<	checkCompletedNormally(g, null);
3878	<	assertEquals(r.value, 2);
3867	>	public void testExceptionPropagationReusesResultObject() {
3868	>	if (!testImplementationDetails) return;
3869	>	for (ExecutionMode m : ExecutionMode.values())
3870	>	{
3871	>	final CFException ex = new CFException();
3872	>	final CompletableFuture<Integer> v42 = CompletableFuture.completedFuture(42);
3873	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
3874	>
3875	>	final Runnable noopRunnable = new Noop(m);
3876	>	final Consumer<Integer> noopConsumer = new NoopConsumer(m);
3877	>	final Function<Integer, Integer> incFunction = new IncFunction(m);
3878	>
3879	>	List<Function<CompletableFuture<Integer>, CompletableFuture<?>>> funs
3880	>	= new ArrayList<>();
3881	>
3882	>	funs.add(y -> m.thenRun(y, noopRunnable));
3883	>	funs.add(y -> m.thenAccept(y, noopConsumer));
3884	>	funs.add(y -> m.thenApply(y, incFunction));
3885	>
3886	>	funs.add(y -> m.runAfterEither(y, incomplete, noopRunnable));
3887	>	funs.add(y -> m.acceptEither(y, incomplete, noopConsumer));
3888	>	funs.add(y -> m.applyToEither(y, incomplete, incFunction));
3889	>
3890	>	funs.add(y -> m.runAfterBoth(y, v42, noopRunnable));
3891	>	funs.add(y -> m.runAfterBoth(v42, y, noopRunnable));
3892	>	funs.add(y -> m.thenAcceptBoth(y, v42, new SubtractAction(m)));
3893	>	funs.add(y -> m.thenAcceptBoth(v42, y, new SubtractAction(m)));
3894	>	funs.add(y -> m.thenCombine(y, v42, new SubtractFunction(m)));
3895	>	funs.add(y -> m.thenCombine(v42, y, new SubtractFunction(m)));
3896	>
3897	>	funs.add(y -> m.whenComplete(y, (Integer r, Throwable t) -> {}));
3898	>
3899	>	funs.add(y -> m.thenCompose(y, new CompletableFutureInc(m)));
3900	>
3901	>	funs.add(y -> CompletableFuture.allOf(y));
3902	>	funs.add(y -> CompletableFuture.allOf(y, v42));
3903	>	funs.add(y -> CompletableFuture.allOf(v42, y));
3904	>	funs.add(y -> CompletableFuture.anyOf(y));
3905	>	funs.add(y -> CompletableFuture.anyOf(y, incomplete));
3906	>	funs.add(y -> CompletableFuture.anyOf(incomplete, y));
3907	>
3908	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3909	>	fun : funs) {
3910	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3911	>	f.completeExceptionally(ex);
3912	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3913	>	checkCompletedWithWrappedException(src, ex);
3914	>	CompletableFuture<?> dep = fun.apply(src);
3915	>	checkCompletedWithWrappedException(dep, ex);
3916	>	assertSame(resultOf(src), resultOf(dep));
3917	>	}
3918
3919	<	r = new IncAction();
3920	<	f = new CompletableFuture<Integer>();
3921	<	f.complete(one);
3922	<	f2 = new CompletableFuture<Integer>();
3923	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
3924	<	checkCompletedNormally(g, null);
3925	<	assertEquals(r.value, 2);
3926	<	}
3919	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3920	>	fun : funs) {
3921	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3922	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3923	>	CompletableFuture<?> dep = fun.apply(src);
3924	>	f.completeExceptionally(ex);
3925	>	checkCompletedWithWrappedException(src, ex);
3926	>	checkCompletedWithWrappedException(dep, ex);
3927	>	assertSame(resultOf(src), resultOf(dep));
3928	>	}
3929
3930	<	/**
3931	<	* acceptEitherAsync result completes exceptionally after exceptional
3932	<	* completion of source
3933	<	*/
3934	<	public void testAcceptEitherAsync2E() {
3935	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3936	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3937	<	IncAction r = new IncAction();
3938	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
3939	<	f.completeExceptionally(new CFException());
3940	<	checkCompletedWithWrappedCFException(g);
3930	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3931	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3932	>	fun : funs) {
3933	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3934	>	f.cancel(mayInterruptIfRunning);
3935	>	checkCancelled(f);
3936	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3937	>	checkCompletedWithWrappedCancellationException(src);
3938	>	CompletableFuture<?> dep = fun.apply(src);
3939	>	checkCompletedWithWrappedCancellationException(dep);
3940	>	assertSame(resultOf(src), resultOf(dep));
3941	>	}
3942
3943	<	r = new IncAction();
3944	<	f = new CompletableFuture<Integer>();
3945	<	f2 = new CompletableFuture<Integer>();
3946	<	f2.completeExceptionally(new CFException());
3947	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
3948	<	f.complete(one);
3949	<	checkCompletedWithWrappedCFException(g);
3950	<	}
3943	>	for (boolean mayInterruptIfRunning : new boolean[] { true, false })
3944	>	for (Function<CompletableFuture<Integer>, CompletableFuture<?>>
3945	>	fun : funs) {
3946	>	CompletableFuture<Integer> f = new CompletableFuture<>();
3947	>	CompletableFuture<Integer> src = m.thenApply(f, incFunction);
3948	>	CompletableFuture<?> dep = fun.apply(src);
3949	>	f.cancel(mayInterruptIfRunning);
3950	>	checkCancelled(f);
3951	>	checkCompletedWithWrappedCancellationException(src);
3952	>	checkCompletedWithWrappedCancellationException(dep);
3953	>	assertSame(resultOf(src), resultOf(dep));
3954	>	}
3955	>	}}
3956
3957		/**
3958	<	* acceptEitherAsync result completes exceptionally if action does
3958	>	* Minimal completion stages throw UOE for most non-CompletionStage methods
3959		*/
3960	<	public void testAcceptEitherAsync3E() {
3961	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
3962	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
3963	<	FailingConsumer r = new FailingConsumer();
3964	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
3965	<	f.complete(one);
3966	<	checkCompletedWithWrappedCFException(g);
3960	>	public void testMinimalCompletionStage_minimality() {
3961	>	if (!testImplementationDetails) return;
3962	>	Function<Method, String> toSignature =
3963	>	method -> method.getName() + Arrays.toString(method.getParameterTypes());
3964	>	Predicate<Method> isNotStatic =
3965	>	method -> (method.getModifiers() & Modifier.STATIC) == 0;
3966	>	List<Method> minimalMethods =
3967	>	Stream.of(Object.class, CompletionStage.class)
3968	>	.flatMap(klazz -> Stream.of(klazz.getMethods()))
3969	>	.filter(isNotStatic)
3970	>	.collect(Collectors.toList());
3971	>	// Methods from CompletableFuture permitted NOT to throw UOE
3972	>	String[] signatureWhitelist = {
3973	>	"newIncompleteFuture[]",
3974	>	"defaultExecutor[]",
3975	>	"minimalCompletionStage[]",
3976	>	"copy[]",
3977	>	};
3978	>	Set<String> permittedMethodSignatures =
3979	>	Stream.concat(minimalMethods.stream().map(toSignature),
3980	>	Stream.of(signatureWhitelist))
3981	>	.collect(Collectors.toSet());
3982	>	List<Method> allMethods = Stream.of(CompletableFuture.class.getMethods())
3983	>	.filter(isNotStatic)
3984	>	.filter(method -> !permittedMethodSignatures.contains(toSignature.apply(method)))
3985	>	.collect(Collectors.toList());
3986	>
3987	>	List<CompletionStage<Integer>> stages = new ArrayList<>();
3988	>	CompletionStage<Integer> min =
3989	>	new CompletableFuture<Integer>().minimalCompletionStage();
3990	>	stages.add(min);
3991	>	stages.add(min.thenApply(x -> x));
3992	>	stages.add(CompletableFuture.completedStage(1));
3993	>	stages.add(CompletableFuture.failedStage(new CFException()));
3994	>
3995	>	List<Method> bugs = new ArrayList<>();
3996	>	for (Method method : allMethods) {
3997	>	Class<?>[] parameterTypes = method.getParameterTypes();
3998	>	Object[] args = new Object[parameterTypes.length];
3999	>	// Manufacture boxed primitives for primitive params
4000	>	for (int i = 0; i < args.length; i++) {
4001	>	Class<?> type = parameterTypes[i];
4002	>	if (parameterTypes[i] == boolean.class)
4003	>	args[i] = false;
4004	>	else if (parameterTypes[i] == int.class)
4005	>	args[i] = 0;
4006	>	else if (parameterTypes[i] == long.class)
4007	>	args[i] = 0L;
4008	>	}
4009	>	for (CompletionStage<Integer> stage : stages) {
4010	>	try {
4011	>	method.invoke(stage, args);
4012	>	bugs.add(method);
4013	>	}
4014	>	catch (java.lang.reflect.InvocationTargetException expected) {
4015	>	if (! (expected.getCause() instanceof UnsupportedOperationException)) {
4016	>	bugs.add(method);
4017	>	// expected.getCause().printStackTrace();
4018	>	}
4019	>	}
4020	>	catch (ReflectiveOperationException bad) { throw new Error(bad); }
4021	>	}
4022	>	}
4023	>	if (!bugs.isEmpty())
4024	>	throw new Error("Methods did not throw UOE: " + bugs);
4025		}
4026
4027		/**
4028	<	* acceptEitherAsync result completes exceptionally if either
4029	<	* source cancelled
4028	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4029	>	* is completed normally, with the same value, when source is.
4030		*/
4031	<	public void testAcceptEitherAsync4E() {
4032	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4033	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4034	<	IncAction r = new IncAction();
4035	<	CompletableFuture<Void> g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
4036	<	assertTrue(f.cancel(true));
4037	<	checkCompletedWithWrappedCancellationException(g);
4038	<
4039	<	r = new IncAction();
4040	<	f = new CompletableFuture<Integer>();
4041	<	f2 = new CompletableFuture<Integer>();
4042	<	assertTrue(f2.cancel(true));
4043	<	g = f.acceptEitherAsync(f2, r, new ThreadExecutor());
4044	<	checkCompletedWithWrappedCancellationException(g);
4045	<	}
4031	>	public void testMinimalCompletionStage_toCompletableFuture_normalCompletion() {
4032	>	for (boolean createIncomplete : new boolean[] { true, false })
4033	>	for (Integer v1 : new Integer[] { 1, null })
4034	>	{
4035	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4036	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4037	>	if (!createIncomplete) assertTrue(f.complete(v1));
4038	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4039	>	if (createIncomplete) {
4040	>	checkIncomplete(f);
4041	>	checkIncomplete(g);
4042	>	assertTrue(f.complete(v1));
4043	>	}
4044	>	checkCompletedNormally(f, v1);
4045	>	checkCompletedNormally(g, v1);
4046	>	}}
4047	>
4048	>	/**
4049	>	* minimalStage.toCompletableFuture() returns a CompletableFuture that
4050	>	* is completed exceptionally when source is.
4051	>	*/
4052	>	public void testMinimalCompletionStage_toCompletableFuture_exceptionalCompletion() {
4053	>	for (boolean createIncomplete : new boolean[] { true, false })
4054	>	{
4055	>	CFException ex = new CFException();
4056	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4057	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4058	>	if (!createIncomplete) f.completeExceptionally(ex);
4059	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4060	>	if (createIncomplete) {
4061	>	checkIncomplete(f);
4062	>	checkIncomplete(g);
4063	>	f.completeExceptionally(ex);
4064	>	}
4065	>	checkCompletedExceptionally(f, ex);
4066	>	checkCompletedWithWrappedException(g, ex);
4067	>	}}
4068
4069		/**
4070	<	* runAfterEitherAsync result completes normally after normal
4071	<	* completion of sources
4072	<	*/
4073	<	public void testRunAfterEitherAsyncE() {
4074	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4075	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4076	<	Noop r = new Noop();
4077	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4078	<	f.complete(one);
4079	<	checkCompletedNormally(g, null);
4080	<	assertTrue(r.ran);
4081	<
4082	<	r = new Noop();
2229	<	f = new CompletableFuture<Integer>();
2230	<	f.complete(one);
2231	<	f2 = new CompletableFuture<Integer>();
2232	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
2233	<	checkCompletedNormally(g, null);
2234	<	assertTrue(r.ran);
2235	<	}
4070	>	* minimalStage.toCompletableFuture() gives mutable CompletableFuture
4071	>	*/
4072	>	public void testMinimalCompletionStage_toCompletableFuture_mutable() {
4073	>	for (Integer v1 : new Integer[] { 1, null })
4074	>	{
4075	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4076	>	CompletionStage minimal = f.minimalCompletionStage();
4077	>	CompletableFuture<Integer> g = minimal.toCompletableFuture();
4078	>	assertTrue(g.complete(v1));
4079	>	checkCompletedNormally(g, v1);
4080	>	checkIncomplete(f);
4081	>	checkIncomplete(minimal.toCompletableFuture());
4082	>	}}
4083
4084		/**
4085	<	* runAfterEitherAsync result completes exceptionally after exceptional
2239	<	* completion of source
4085	>	* minimalStage.toCompletableFuture().join() awaits completion
4086		*/
4087	<	public void testRunAfterEitherAsync2E() {
4088	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4089	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4090	<	Noop r = new Noop();
4091	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4092	<	f.completeExceptionally(new CFException());
4093	<	checkCompletedWithWrappedCFException(g);
4094	<
4095	<	r = new Noop();
4096	<	f = new CompletableFuture<Integer>();
4097	<	f2 = new CompletableFuture<Integer>();
4098	<	f2.completeExceptionally(new CFException());
4099	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4100	<	f.complete(one);
4101	<	checkCompletedWithWrappedCFException(g);
4087	>	public void testMinimalCompletionStage_toCompletableFuture_join() throws Exception {
4088	>	for (boolean createIncomplete : new boolean[] { true, false })
4089	>	for (Integer v1 : new Integer[] { 1, null })
4090	>	{
4091	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4092	>	if (!createIncomplete) assertTrue(f.complete(v1));
4093	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4094	>	if (createIncomplete) assertTrue(f.complete(v1));
4095	>	assertEquals(v1, minimal.toCompletableFuture().join());
4096	>	assertEquals(v1, minimal.toCompletableFuture().get());
4097	>	checkCompletedNormally(minimal.toCompletableFuture(), v1);
4098	>	}}
4099	>
4100	>	/**
4101	>	* Completion of a toCompletableFuture copy of a minimal stage
4102	>	* does not complete its source.
4103	>	*/
4104	>	public void testMinimalCompletionStage_toCompletableFuture_oneWayPropagation() {
4105	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4106	>	CompletionStage<Integer> g = f.minimalCompletionStage();
4107	>	assertTrue(g.toCompletableFuture().complete(1));
4108	>	assertTrue(g.toCompletableFuture().complete(null));
4109	>	assertTrue(g.toCompletableFuture().cancel(true));
4110	>	assertTrue(g.toCompletableFuture().cancel(false));
4111	>	assertTrue(g.toCompletableFuture().completeExceptionally(new CFException()));
4112	>	checkIncomplete(g.toCompletableFuture());
4113	>	f.complete(1);
4114	>	checkCompletedNormally(g.toCompletableFuture(), 1);
4115		}
4116
4117	<	/**
4118	<	* runAfterEitherAsync result completes exceptionally if action does
4119	<	*/
4120	<	public void testRunAfterEitherAsync3E() {
4121	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4122	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4123	<	FailingNoop r = new FailingNoop();
4124	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4125	<	f.complete(one);
4126	<	checkCompletedWithWrappedCFException(g);
4117	>	/** Demo utility method for external reliable toCompletableFuture */
4118	>	static <T> CompletableFuture<T> toCompletableFuture(CompletionStage<T> stage) {
4119	>	CompletableFuture<T> f = new CompletableFuture<>();
4120	>	stage.handle((T t, Throwable ex) -> {
4121	>	if (ex != null) f.completeExceptionally(ex);
4122	>	else f.complete(t);
4123	>	return null;
4124	>	});
4125	>	return f;
4126	>	}
4127	>
4128	>	/** Demo utility method to join a CompletionStage */
4129	>	static <T> T join(CompletionStage<T> stage) {
4130	>	return toCompletableFuture(stage).join();
4131		}
4132
4133		/**
4134	<	* runAfterEitherAsync result completes exceptionally if either
4135	<	* source cancelled
4136	<	*/
4137	<	public void testRunAfterEitherAsync4E() {
4138	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4139	<	CompletableFuture<Integer> f2 = new CompletableFuture<Integer>();
4140	<	Noop r = new Noop();
4141	<	CompletableFuture<Void> g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4142	<	assertTrue(f.cancel(true));
4143	<	checkCompletedWithWrappedCancellationException(g);
4144	<
4145	<	r = new Noop();
4146	<	f = new CompletableFuture<Integer>();
4147	<	f2 = new CompletableFuture<Integer>();
4148	<	assertTrue(f2.cancel(true));
4149	<	g = f.runAfterEitherAsync(f2, r, new ThreadExecutor());
4150	<	checkCompletedWithWrappedCancellationException(g);
4151	<	}
4134	>	* Joining a minimal stage "by hand" works
4135	>	*/
4136	>	public void testMinimalCompletionStage_join_by_hand() {
4137	>	for (boolean createIncomplete : new boolean[] { true, false })
4138	>	for (Integer v1 : new Integer[] { 1, null })
4139	>	{
4140	>	CompletableFuture<Integer> f = new CompletableFuture<>();
4141	>	CompletionStage<Integer> minimal = f.minimalCompletionStage();
4142	>	CompletableFuture<Integer> g = new CompletableFuture<>();
4143	>	if (!createIncomplete) assertTrue(f.complete(v1));
4144	>	minimal.thenAccept(x -> g.complete(x));
4145	>	if (createIncomplete) assertTrue(f.complete(v1));
4146	>	g.join();
4147	>	checkCompletedNormally(g, v1);
4148	>	checkCompletedNormally(f, v1);
4149	>	assertEquals(v1, join(minimal));
4150	>	}}
4151	>
4152	>	static class Monad {
4153	>	static class ZeroException extends RuntimeException {
4154	>	public ZeroException() { super("monadic zero"); }
4155	>	}
4156	>	// "return", "unit"
4157	>	static <T> CompletableFuture<T> unit(T value) {
4158	>	return completedFuture(value);
4159	>	}
4160	>	// monadic zero ?
4161	>	static <T> CompletableFuture<T> zero() {
4162	>	return failedFuture(new ZeroException());
4163	>	}
4164	>	// >=>
4165	>	static <T,U,V> Function<T, CompletableFuture<V>> compose
4166	>	(Function<T, CompletableFuture<U>> f,
4167	>	Function<U, CompletableFuture<V>> g) {
4168	>	return x -> f.apply(x).thenCompose(g);
4169	>	}
4170
4171	<	/**
4172	<	* thenComposeAsync result completes normally after normal
4173	<	* completion of source
4174	<	*/
4175	<	public void testThenComposeAsyncE() {
4176	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4177	<	CompletableFutureInc r = new CompletableFutureInc();
4178	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
2298	<	f.complete(one);
2299	<	checkCompletedNormally(g, two);
2300	<	}
4171	>	static void assertZero(CompletableFuture<?> f) {
4172	>	try {
4173	>	f.getNow(null);
4174	>	throw new AssertionFailedError("should throw");
4175	>	} catch (CompletionException success) {
4176	>	assertTrue(success.getCause() instanceof ZeroException);
4177	>	}
4178	>	}
4179
4180	<	/**
4181	<	* thenComposeAsync result completes exceptionally after
4182	<	* exceptional completion of source
4183	<	*/
4184	<	public void testThenComposeAsync2E() {
4185	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4186	<	CompletableFutureInc r = new CompletableFutureInc();
4187	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
4188	<	f.completeExceptionally(new CFException());
4189	<	checkCompletedWithWrappedCFException(g);
4190	<	}
4180	>	static <T> void assertFutureEquals(CompletableFuture<T> f,
4181	>	CompletableFuture<T> g) {
4182	>	T fval = null, gval = null;
4183	>	Throwable fex = null, gex = null;
4184	>
4185	>	try { fval = f.get(); }
4186	>	catch (ExecutionException ex) { fex = ex.getCause(); }
4187	>	catch (Throwable ex) { fex = ex; }
4188	>
4189	>	try { gval = g.get(); }
4190	>	catch (ExecutionException ex) { gex = ex.getCause(); }
4191	>	catch (Throwable ex) { gex = ex; }
4192	>
4193	>	if (fex != null || gex != null)
4194	>	assertSame(fex.getClass(), gex.getClass());
4195	>	else
4196	>	assertEquals(fval, gval);
4197	>	}
4198
4199	<	/**
4200	<	* thenComposeAsync result completes exceptionally if action does
4201	<	*/
2317	<	public void testThenComposeAsync3E() {
2318	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
2319	<	FailingCompletableFutureFunction r = new FailingCompletableFutureFunction();
2320	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
2321	<	f.complete(one);
2322	<	checkCompletedWithWrappedCFException(g);
2323	<	}
4199	>	static class PlusFuture<T> extends CompletableFuture<T> {
4200	>	AtomicReference<Throwable> firstFailure = new AtomicReference<>(null);
4201	>	}
4202
4203	<	/**
4204	<	* thenComposeAsync result completes exceptionally if source cancelled
4205	<	*/
4206	<	public void testThenComposeAsync4E() {
4207	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4208	<	CompletableFutureInc r = new CompletableFutureInc();
4209	<	CompletableFuture<Integer> g = f.thenComposeAsync(r, new ThreadExecutor());
4210	<	assertTrue(f.cancel(true));
4211	<	checkCompletedWithWrappedCancellationException(g);
4203	>	/** Implements "monadic plus". */
4204	>	static <T> CompletableFuture<T> plus(CompletableFuture<? extends T> f,
4205	>	CompletableFuture<? extends T> g) {
4206	>	PlusFuture<T> plus = new PlusFuture<T>();
4207	>	BiConsumer<T, Throwable> action = (T result, Throwable ex) -> {
4208	>	try {
4209	>	if (ex == null) {
4210	>	if (plus.complete(result))
4211	>	if (plus.firstFailure.get() != null)
4212	>	plus.firstFailure.set(null);
4213	>	}
4214	>	else if (plus.firstFailure.compareAndSet(null, ex)) {
4215	>	if (plus.isDone())
4216	>	plus.firstFailure.set(null);
4217	>	}
4218	>	else {
4219	>	// first failure has precedence
4220	>	Throwable first = plus.firstFailure.getAndSet(null);
4221	>
4222	>	// may fail with "Self-suppression not permitted"
4223	>	try { first.addSuppressed(ex); }
4224	>	catch (Exception ignored) {}
4225	>
4226	>	plus.completeExceptionally(first);
4227	>	}
4228	>	} catch (Throwable unexpected) {
4229	>	plus.completeExceptionally(unexpected);
4230	>	}
4231	>	};
4232	>	f.whenComplete(action);
4233	>	g.whenComplete(action);
4234	>	return plus;
4235	>	}
4236		}
4237
2336	–	// other static methods
2337	–
4238		/**
4239	<	* allOf(no component futures) returns a future completed normally
4240	<	* with the value null
4239	>	* CompletableFuture is an additive monad - sort of.
4240	>	* https://en.wikipedia.org/wiki/Monad_(functional_programming)#Additive_monads
4241		*/
4242	<	public void testAllOf_empty() throws Exception {
4243	<	CompletableFuture<?> f = CompletableFuture.allOf();
4244	<	checkCompletedNormally(f, null);
4245	<	}
4242	>	public void testAdditiveMonad() throws Throwable {
4243	>	Function<Long, CompletableFuture<Long>> unit = Monad::unit;
4244	>	CompletableFuture<Long> zero = Monad.zero();
4245	>
4246	>	// Some mutually non-commutative functions
4247	>	Function<Long, CompletableFuture<Long>> triple
4248	>	= x -> Monad.unit(3 * x);
4249	>	Function<Long, CompletableFuture<Long>> inc
4250	>	= x -> Monad.unit(x + 1);
4251	>
4252	>	// unit is a right identity: m >>= unit === m
4253	>	Monad.assertFutureEquals(inc.apply(5L).thenCompose(unit),
4254	>	inc.apply(5L));
4255	>	// unit is a left identity: (unit x) >>= f === f x
4256	>	Monad.assertFutureEquals(unit.apply(5L).thenCompose(inc),
4257	>	inc.apply(5L));
4258	>
4259	>	// associativity: (m >>= f) >>= g === m >>= ( \x -> (f x >>= g) )
4260	>	Monad.assertFutureEquals(
4261	>	unit.apply(5L).thenCompose(inc).thenCompose(triple),
4262	>	unit.apply(5L).thenCompose(x -> inc.apply(x).thenCompose(triple)));
4263	>
4264	>	// The case for CompletableFuture as an additive monad is weaker...
4265	>
4266	>	// zero is a monadic zero
4267	>	Monad.assertZero(zero);
4268	>
4269	>	// left zero: zero >>= f === zero
4270	>	Monad.assertZero(zero.thenCompose(inc));
4271	>	// right zero: f >>= (\x -> zero) === zero
4272	>	Monad.assertZero(inc.apply(5L).thenCompose(x -> zero));
4273	>
4274	>	// f plus zero === f
4275	>	Monad.assertFutureEquals(Monad.unit(5L),
4276	>	Monad.plus(Monad.unit(5L), zero));
4277	>	// zero plus f === f
4278	>	Monad.assertFutureEquals(Monad.unit(5L),
4279	>	Monad.plus(zero, Monad.unit(5L)));
4280	>	// zero plus zero === zero
4281	>	Monad.assertZero(Monad.plus(zero, zero));
4282	>	{
4283	>	CompletableFuture<Long> f = Monad.plus(Monad.unit(5L),
4284	>	Monad.unit(8L));
4285	>	// non-determinism
4286	>	assertTrue(f.get() == 5L || f.get() == 8L);
4287	>	}
4288
4289	<	/**
4290	<	* allOf returns a future completed when all components complete
4291	<	*/
4292	<	public void testAllOf() throws Exception {
4293	<	for (int k = 1; k < 20; ++k) {
4294	<	CompletableFuture[] fs = new CompletableFuture[k];
4295	<	for (int i = 0; i < k; ++i)
4296	<	fs[i] = new CompletableFuture<Integer>();
4297	<	CompletableFuture<Void> f = CompletableFuture.allOf(fs);
4298	<	for (int i = 0; i < k; ++i) {
4299	<	checkIncomplete(f);
4300	<	fs[i].complete(one);
4301	<	}
4302	<	checkCompletedNormally(f, null);
4289	>	CompletableFuture<Long> godot = new CompletableFuture<>();
4290	>	// f plus godot === f (doesn't wait for godot)
4291	>	Monad.assertFutureEquals(Monad.unit(5L),
4292	>	Monad.plus(Monad.unit(5L), godot));
4293	>	// godot plus f === f (doesn't wait for godot)
4294	>	Monad.assertFutureEquals(Monad.unit(5L),
4295	>	Monad.plus(godot, Monad.unit(5L)));
4296	>	}
4297	>
4298	>	/** Test long recursive chains of CompletableFutures with cascading completions */
4299	>	public void testRecursiveChains() throws Throwable {
4300	>	for (ExecutionMode m : ExecutionMode.values())
4301	>	for (boolean addDeadEnds : new boolean[] { true, false })
4302	>	{
4303	>	final int val = 42;
4304	>	final int n = expensiveTests ? 1_000 : 2;
4305	>	CompletableFuture<Integer> head = new CompletableFuture<>();
4306	>	CompletableFuture<Integer> tail = head;
4307	>	for (int i = 0; i < n; i++) {
4308	>	if (addDeadEnds) m.thenApply(tail, v -> v + 1);
4309	>	tail = m.thenApply(tail, v -> v + 1);
4310	>	if (addDeadEnds) m.applyToEither(tail, tail, v -> v + 1);
4311	>	tail = m.applyToEither(tail, tail, v -> v + 1);
4312	>	if (addDeadEnds) m.thenCombine(tail, tail, (v, w) -> v + 1);
4313	>	tail = m.thenCombine(tail, tail, (v, w) -> v + 1);
4314		}
4315	+	head.complete(val);
4316	+	assertEquals(val + 3 * n, (int) tail.join());
4317	+	}}
4318	+
4319	+	/**
4320	+	* A single CompletableFuture with many dependents.
4321	+	* A demo of scalability - runtime is O(n).
4322	+	*/
4323	+	public void testManyDependents() throws Throwable {
4324	+	final int n = expensiveTests ? 1_000_000 : 10;
4325	+	final CompletableFuture<Void> head = new CompletableFuture<>();
4326	+	final CompletableFuture<Void> complete = CompletableFuture.completedFuture((Void)null);
4327	+	final AtomicInteger count = new AtomicInteger(0);
4328	+	for (int i = 0; i < n; i++) {
4329	+	head.thenRun(() -> count.getAndIncrement());
4330	+	head.thenAccept(x -> count.getAndIncrement());
4331	+	head.thenApply(x -> count.getAndIncrement());
4332	+
4333	+	head.runAfterBoth(complete, () -> count.getAndIncrement());
4334	+	head.thenAcceptBoth(complete, (x, y) -> count.getAndIncrement());
4335	+	head.thenCombine(complete, (x, y) -> count.getAndIncrement());
4336	+	complete.runAfterBoth(head, () -> count.getAndIncrement());
4337	+	complete.thenAcceptBoth(head, (x, y) -> count.getAndIncrement());
4338	+	complete.thenCombine(head, (x, y) -> count.getAndIncrement());
4339	+
4340	+	head.runAfterEither(new CompletableFuture<Void>(), () -> count.getAndIncrement());
4341	+	head.acceptEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4342	+	head.applyToEither(new CompletableFuture<Void>(), x -> count.getAndIncrement());
4343	+	new CompletableFuture<Void>().runAfterEither(head, () -> count.getAndIncrement());
4344	+	new CompletableFuture<Void>().acceptEither(head, x -> count.getAndIncrement());
4345	+	new CompletableFuture<Void>().applyToEither(head, x -> count.getAndIncrement());
4346	+	}
4347	+	head.complete(null);
4348	+	assertEquals(5 * 3 * n, count.get());
4349		}
4350
4351	<	/**
4352	<	* anyOf(no component futures) returns an incomplete future
4353	<	*/
4354	<	public void testAnyOf_empty() throws Exception {
4355	<	CompletableFuture<?> f = CompletableFuture.anyOf();
4356	<	checkIncomplete(f);
4357	<	}
4351	>	/** ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest tck */
4352	>	public void testCoCompletionGarbageRetention() throws Throwable {
4353	>	final int n = expensiveTests ? 1_000_000 : 10;
4354	>	final CompletableFuture<Integer> incomplete = new CompletableFuture<>();
4355	>	CompletableFuture<Integer> f;
4356	>	for (int i = 0; i < n; i++) {
4357	>	f = new CompletableFuture<>();
4358	>	f.runAfterEither(incomplete, () -> {});
4359	>	f.complete(null);
4360	>
4361	>	f = new CompletableFuture<>();
4362	>	f.acceptEither(incomplete, x -> {});
4363	>	f.complete(null);
4364	>
4365	>	f = new CompletableFuture<>();
4366	>	f.applyToEither(incomplete, x -> x);
4367	>	f.complete(null);
4368	>
4369	>	f = new CompletableFuture<>();
4370	>	CompletableFuture.anyOf(new CompletableFuture<?>[] { f, incomplete });
4371	>	f.complete(null);
4372	>	}
4373
4374	<	/**
4375	<	* allOf returns a future completed when any components complete
4376	<	*/
4377	<	public void testAnyOf() throws Exception {
4378	<	for (int k = 1; k < 20; ++k) {
4379	<	CompletableFuture[] fs = new CompletableFuture[k];
4380	<	for (int i = 0; i < k; ++i)
4381	<	fs[i] = new CompletableFuture<Integer>();
4382	<	CompletableFuture<Object> f = CompletableFuture.anyOf(fs);
4383	<	checkIncomplete(f);
4384	<	for (int i = 0; i < k; ++i) {
4385	<	fs[i].complete(one);
4386	<	checkCompletedNormally(f, one);
4387	<	}
4374	>	for (int i = 0; i < n; i++) {
4375	>	f = new CompletableFuture<>();
4376	>	incomplete.runAfterEither(f, () -> {});
4377	>	f.complete(null);
4378	>
4379	>	f = new CompletableFuture<>();
4380	>	incomplete.acceptEither(f, x -> {});
4381	>	f.complete(null);
4382	>
4383	>	f = new CompletableFuture<>();
4384	>	incomplete.applyToEither(f, x -> x);
4385	>	f.complete(null);
4386	>
4387	>	f = new CompletableFuture<>();
4388	>	CompletableFuture.anyOf(new CompletableFuture<?>[] { incomplete, f });
4389	>	f.complete(null);
4390		}
4391		}
4392
4393		/**
4394	<	* Completion methods throw NullPointerException with null arguments
4395	<	*/
4396	<	public void testNPE() {
4397	<	CompletableFuture<Integer> f = new CompletableFuture<Integer>();
4398	<	CompletableFuture<Integer> g = new CompletableFuture<Integer>();
4399	<	CompletableFuture h;
4400	<	try { h = f.thenApply(null); } catch (NullPointerException ok) {}
4401	<	try { h = f.thenAccept(null); } catch (NullPointerException ok) {}
4402	<	try { h = f.thenRun(null); } catch (NullPointerException ok) {}
4403	<	try { h = f.thenCombine(g, null); } catch (NullPointerException ok) {}
4404	<	try { h = f.thenCombine(null, null); } catch (NullPointerException ok) {}
4405	<	try { h = f.applyToEither(g, null); } catch (NullPointerException ok) {}
4406	<	try { h = f.applyToEither(null, null); } catch (NullPointerException ok) {}
4407	<	try { h = f.thenAcceptBoth(g, null); } catch (NullPointerException ok) {}
4408	<	try { h = f.thenAcceptBoth(null, null); } catch (NullPointerException ok) {}
4409	<	try { h = f.runAfterEither(g, null); } catch (NullPointerException ok) {}
4410	<	try { h = f.runAfterEither(null, null); } catch (NullPointerException ok) {}
4411	<	try { h = f.runAfterBoth(g, null); } catch (NullPointerException ok) {}
4412	<	try { h = f.runAfterBoth(null, null); } catch (NullPointerException ok) {}
4413	<	try { h = f.exceptionally(null); } catch (NullPointerException ok) {}
4414	<	try { h = f.handle(null); } catch (NullPointerException ok) {}
4415	<	try { h = f.thenCompose(null); } catch (NullPointerException ok) {}
4416	<
4417	<	try { h = f.thenApplyAsync(null); } catch (NullPointerException ok) {}
4418	<	try { h = f.thenAcceptAsync(null); } catch (NullPointerException ok) {}
4419	<	try { h = f.thenRunAsync(null); } catch (NullPointerException ok) {}
4420	<	try { h = f.thenCombineAsync(g, null); } catch (NullPointerException ok) {}
4421	<	try { h = f.thenCombineAsync(null, null); } catch (NullPointerException ok) {}
4422	<	try { h = f.applyToEitherAsync(g, null); } catch (NullPointerException ok) {}
4423	<	try { h = f.applyToEitherAsync(null, null); } catch (NullPointerException ok) {}
4424	<	try { h = f.thenAcceptBothAsync(g, null); } catch (NullPointerException ok) {}
4425	<	try { h = f.thenAcceptBothAsync(null, null); } catch (NullPointerException ok) {}
4426	<	try { h = f.runAfterEitherAsync(g, null); } catch (NullPointerException ok) {}
4427	<	try { h = f.runAfterEitherAsync(null, null); } catch (NullPointerException ok) {}
4428	<	try { h = f.runAfterBothAsync(g, null); } catch (NullPointerException ok) {}
4429	<	try { h = f.runAfterBothAsync(null, null); } catch (NullPointerException ok) {}
4430	<
4431	<	}
4432	<
4394	>	* Reproduction recipe for:
4395	>	* 8160402: Garbage retention with CompletableFuture.anyOf
4396	>	* cvs update -D '2016-05-01' ./src/main/java/util/concurrent/CompletableFuture.java && ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testAnyOfGarbageRetention tck; cvs update -A
4397	>	*/
4398	>	public void testAnyOfGarbageRetention() throws Throwable {
4399	>	for (Integer v : new Integer[] { 1, null })
4400	>	{
4401	>	final int n = expensiveTests ? 100_000 : 10;
4402	>	CompletableFuture<Integer>[] fs
4403	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4404	>	for (int i = 0; i < fs.length; i++)
4405	>	fs[i] = new CompletableFuture<>();
4406	>	fs[fs.length - 1].complete(v);
4407	>	for (int i = 0; i < n; i++)
4408	>	checkCompletedNormally(CompletableFuture.anyOf(fs), v);
4409	>	}}
4410	>
4411	>	/**
4412	>	* Checks for garbage retention with allOf.
4413	>	*
4414	>	* As of 2016-07, fails with OOME:
4415	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledAllOfGarbageRetention tck
4416	>	*/
4417	>	public void testCancelledAllOfGarbageRetention() throws Throwable {
4418	>	final int n = expensiveTests ? 100_000 : 10;
4419	>	CompletableFuture<Integer>[] fs
4420	>	= (CompletableFuture<Integer>[]) new CompletableFuture<?>[100];
4421	>	for (int i = 0; i < fs.length; i++)
4422	>	fs[i] = new CompletableFuture<>();
4423	>	for (int i = 0; i < n; i++)
4424	>	assertTrue(CompletableFuture.allOf(fs).cancel(false));
4425	>	}
4426	>
4427	>	/**
4428	>	* Checks for garbage retention when a dependent future is
4429	>	* cancelled and garbage-collected.
4430	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4431	>	*
4432	>	* As of 2016-07, fails with OOME:
4433	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testCancelledGarbageRetention tck
4434	>	*/
4435	>	public void testCancelledGarbageRetention() throws Throwable {
4436	>	final int n = expensiveTests ? 100_000 : 10;
4437	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4438	>	for (int i = 0; i < n; i++)
4439	>	assertTrue(neverCompleted.thenRun(() -> {}).cancel(true));
4440	>	}
4441	>
4442	>	/**
4443	>	* Checks for garbage retention when MinimalStage.toCompletableFuture()
4444	>	* is invoked many times.
4445	>	* 8161600: Garbage retention when source CompletableFutures are never completed
4446	>	*
4447	>	* As of 2016-07, fails with OOME:
4448	>	* ant -Dvmoptions=-Xmx8m -Djsr166.expensiveTests=true -Djsr166.tckTestClass=CompletableFutureTest -Djsr166.methodFilter=testToCompletableFutureGarbageRetention tck
4449	>	*/
4450	>	public void testToCompletableFutureGarbageRetention() throws Throwable {
4451	>	final int n = expensiveTests ? 900_000 : 10;
4452	>	CompletableFuture<Integer> neverCompleted = new CompletableFuture<>();
4453	>	CompletionStage minimal = neverCompleted.minimalCompletionStage();
4454	>	for (int i = 0; i < n; i++)
4455	>	assertTrue(minimal.toCompletableFuture().cancel(true));
4456	>	}
4457	>
4458	>	//     static <U> U join(CompletionStage<U> stage) {
4459	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4460	>	//         stage.whenComplete((v, ex) -> {
4461	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4462	>	//         });
4463	>	//         return f.join();
4464	>	//     }
4465	>
4466	>	//     static <U> boolean isDone(CompletionStage<U> stage) {
4467	>	//         CompletableFuture<U> f = new CompletableFuture<>();
4468	>	//         stage.whenComplete((v, ex) -> {
4469	>	//             if (ex != null) f.completeExceptionally(ex); else f.complete(v);
4470	>	//         });
4471	>	//         return f.isDone();
4472	>	//     }
4473	>
4474	>	//     static <U> U join2(CompletionStage<U> stage) {
4475	>	//         return stage.toCompletableFuture().copy().join();
4476	>	//     }
4477	>
4478	>	//     static <U> boolean isDone2(CompletionStage<U> stage) {
4479	>	//         return stage.toCompletableFuture().copy().isDone();
4480	>	//     }
4481
4482		}

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